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Shim KH, Kim D, Kang MJ, Pyun JM, Park YH, Youn YC, Park KW, Suk K, Lee HW, Gomes BF, Zetterberg H, An SSA, Kim S. Subsequent correlated changes in complement component 3 and amyloid beta oligomers in the blood of patients with Alzheimer's disease. Alzheimers Dement 2024; 20:2731-2741. [PMID: 38411315 PMCID: PMC11032549 DOI: 10.1002/alz.13734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 12/05/2023] [Accepted: 01/19/2024] [Indexed: 02/28/2024]
Abstract
INTRODUCTION Alzheimer's disease (AD) involves the complement cascade, with complement component 3 (C3) playing a key role. However, the relationship between C3 and amyloid beta (Aβ) in blood is limited. METHODS Plasma C3 and Aβ oligomerization tendency (AβOt) were measured in 35 AD patients and 62 healthy controls. Correlations with cerebrospinal fluid (CSF) biomarkers, cognitive impairment, and amyloid positron emission tomography (PET) were analyzed. Differences between biomarkers were compared in groups classified by concordances of biomarkers. RESULTS Plasma C3 and AβOt were elevated in AD patients and in CSF or amyloid PET-positive groups. Weak positive correlation was found between C3 and AβOt, while both had strong negative correlations with CSF Aβ42 and cognitive performance. Abnormalities were observed for AβOt and CSF Aβ42 followed by C3 changes. DISCUSSION Increased plasma C3 in AD are associated with amyloid pathology, possibly reflecting a defense response for Aβ clearance. Further studies on Aβ-binding proteins will enhance understanding of Aβ mechanisms in blood.
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Affiliation(s)
- Kyu Hwan Shim
- Department of Bionano Technology, Gachon University, Seongnam, Republic of Korea
| | - Danyeong Kim
- Department of Bionano Technology, Gachon University, Seongnam, Republic of Korea
| | - Min Ju Kang
- Department of Neurology, Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul, Republic of Korea
| | - Jung-Min Pyun
- Department of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Young Ho Park
- Department of Neurology, Seoul National University College of Medicine and Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Young Chul Youn
- Department of Neurology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Kyung Won Park
- Department of Neurology, Dong-A University College of Medicine and Institute of Convergence Bio-Health, Busan, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Ho-Won Lee
- Department of Neurology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Bárbara Fernandes Gomes
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK
- UK Dementia Research Institute at UCL, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Seong Soo A An
- Department of Bionano Technology, Gachon University, Seongnam, Republic of Korea
| | - SangYun Kim
- Department of Neurology, Seoul National University College of Medicine and Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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2
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Cichońska D, Mazuś M, Kusiak A. Recent Aspects of Periodontitis and Alzheimer's Disease-A Narrative Review. Int J Mol Sci 2024; 25:2612. [PMID: 38473858 DOI: 10.3390/ijms25052612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Periodontitis is an inflammatory condition affecting the supporting structures of the teeth. Periodontal conditions may increase the susceptibility of individuals to various systemic illnesses, including Alzheimer's disease. Alzheimer's disease is a neurodegenerative condition characterized by a gradual onset and progressive deterioration, making it the primary cause of dementia, although the exact cause of the disease remains elusive. Both Alzheimer's disease and periodontitis share risk factors and clinical studies comparing the associations and occurrence of periodontitis among individuals with Alzheimer's disease have suggested a potential correlation between these conditions. Brains of individuals with Alzheimer's disease have substantiated the existence of microorganisms related to periodontitis, especially Porphyromonas gingivalis, which produces neurotoxic gingipains and may present the capability to breach the blood-brain barrier. Treponema denticola may induce tau hyperphosphorylation and lead to neuronal apoptosis. Lipopolysaccharides-components of bacterial cell membranes and mediators of inflammation-also have an impact on brain function. Further research could unveil therapeutic approaches targeting periodontal pathogens to potentially alleviate AD progression.
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Affiliation(s)
- Dominika Cichońska
- Department of Periodontology and Oral Mucosa Diseases, Medical University of Gdańsk, Orzeszkowej 18 St. 18, 80-208 Gdańsk, Poland
| | - Magda Mazuś
- Student Research Group of the Department of Periodontology and Oral Mucosa Diseases, Medical University of Gdańsk, Orzeszkowej 18 St. 18, 80-208 Gdańsk, Poland
| | - Aida Kusiak
- Department of Periodontology and Oral Mucosa Diseases, Medical University of Gdańsk, Orzeszkowej 18 St. 18, 80-208 Gdańsk, Poland
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3
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Zhuang H, Cao X, Tang X, Zou Y, Yang H, Liang Z, Yan X, Chen X, Feng X, Shen L. Investigating metabolic dysregulation in serum of triple transgenic Alzheimer's disease male mice: implications for pathogenesis and potential biomarkers. Amino Acids 2024; 56:10. [PMID: 38315232 PMCID: PMC10844422 DOI: 10.1007/s00726-023-03375-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 11/11/2023] [Indexed: 02/07/2024]
Abstract
Alzheimer's disease (AD) is a multifactorial neurodegenerative disease that lacks convenient and accessible peripheral blood diagnostic markers and effective drugs. Metabolic dysfunction is one of AD risk factors, which leaded to alterations of various metabolites in the body. Pathological changes of the brain can be reflected in blood metabolites that are expected to explain the disease mechanisms or be candidate biomarkers. The aim of this study was to investigate the changes of targeted metabolites within peripheral blood of AD mouse model, with the purpose of exploring the disease mechanism and potential biomarkers. Targeted metabolomics was used to quantify 256 metabolites in serum of triple transgenic AD (3 × Tg-AD) male mice. Compared with controls, 49 differential metabolites represented dysregulation in purine, pyrimidine, tryptophan, cysteine and methionine and glycerophospholipid metabolism. Among them, adenosine, serotonin, N-acetyl-5-hydroxytryptamine, and acetylcholine play a key role in regulating neural transmitter network. The alteration of S-adenosine-L-homocysteine, S-adenosine-L-methionine, and trimethylamine-N-oxide in AD mice serum can served as indicator of AD risk. The results revealed the changes of metabolites in serum, suggesting that metabolic dysregulation in periphery in AD mice may be related to the disturbances in neuroinhibition, the serotonergic system, sleep function, the cholinergic system, and the gut microbiota. This study provides novel insights into the dysregulation of several key metabolites and metabolic pathways in AD, presenting potential avenues for future research and the development of peripheral biomarkers.
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Affiliation(s)
- Hongbin Zhuang
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Xueshan Cao
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Xiaoxiao Tang
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Yongdong Zou
- Center for Instrumental Analysis, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Hongbo Yang
- Center for Instrumental Analysis, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Zhiyuan Liang
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Xi Yan
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, People's Republic of China
| | - Xiaolu Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, People's Republic of China
| | - Xingui Feng
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China
| | - Liming Shen
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518071, People's Republic of China.
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, People's Republic of China.
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4
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Jia XX, Chen C, Hu C, Chao ZY, Zhang WW, Wu YZ, Fan Q, A RH, Liu X, Xiao K, Shi Q, Dong XP. Abnormal Changes of IL3/IL3R and Its Downstream Signaling Pathways in the Prion-Infected Cell Line and in the Brains of Scrapie-Infected Rodents. Mol Neurobiol 2023:10.1007/s12035-023-03511-8. [PMID: 37548852 DOI: 10.1007/s12035-023-03511-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/13/2023] [Indexed: 08/08/2023]
Abstract
Interleukin 3 (IL-3) plays an important role in hematopoiesis and immune regulation, brain IL-3/IL-3R signaling has been shown to involve in the physiological and pathological processes of a variety of neurodegenerative diseases, but its role in prion diseases is rarely described. Here, the changes of IL-3/IL-3R and its downstream signaling pathways in a scrapie-infected cell line and in the brains of several scrapie-infected rodent models were evaluated by various methods. Markedly decreased IL-3Rα were observed in the brains of scrapie-infected rodents at terminal stage and in the prion-infected cell model, which showed increased in the brain samples collected at early and middle stage of infection. The IL-3 levels were almost unchanged in the brains of scrapie-infected mice and in the prion-infected cell line. Morphological assays identified close co-localization of the increased IL-3Rα signals with NeuN- and Iba1-positive cells, whereas co-localization of IL-3 signals with NeuN- and GFAP-positive cells in the scrapie-infected brain tissues. Some downstream components of IL-3/IL-3R pathways, including JAK2-STAT5 and PI3K/AKT/mTOR pathways, were downregulated in the brains of scrapie-infected rodents at terminal stage and in the prion-infected cells. Stimulation of recombinant IL-3 on the cultured cells showed prion that the prion-infected cells displayed markedly more reluctant responses of JAK2-STAT5 and PI3K/AKT/mTOR pathways than the normal partner cells. These data suggest that although prion infection or PrPSc accumulation in brain tissues does not affect IL-3 expression, it significantly downregulates IL-3R levels, thereby inhibiting the downstream pathways of IL-3/IL-3R and blocking the neuroregulatory and neuroprotective activities of IL-3.
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Affiliation(s)
- Xiao-Xi Jia
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Cao Chen
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China.
| | - Chao Hu
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- Xuanwu Hospital Capital Medical University, Beijing, China
| | - Zhi-Yue Chao
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wei-Wei Zhang
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- North China University of Science and Technology, Tangshan, China
| | - Yue-Zhang Wu
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qin Fan
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ru-Han A
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xin Liu
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Kang Xiao
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qi Shi
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiao-Ping Dong
- National Key-Laboratory of Intelligent Tracing and Forecasting for Infectious Disease, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China.
- China Academy of Chinese Medical Sciences, Beijing, China.
- Shanghai Institute of Infectious Disease and Biosafety, Shanghai, China.
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5
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Zhou S, Li Y, Zhang Z, Yuan Y. An insight into the TAM system in Alzheimer's disease. Int Immunopharmacol 2023; 116:109791. [PMID: 36738678 DOI: 10.1016/j.intimp.2023.109791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/13/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023]
Abstract
The TAM receptors may help delay the progression of Alzheimer's disease (AD). AD is the most common neurodegenerative disease associated with human aging. The TAM receptors, derived from the first letter of its three constituents -Tyro3, Axl, and Mertk, are associated with immune responses, cellular differentiation and migration, and clearance of apoptotic cells and debris, with the two canonical ligands, Growth Arrest Specific 6 (Gas6) and ProS1. Several kinds of research have indicated the participation of the TAM system in AD pathology. Also, the TAMs regulate multiple features of microglia, the significant sensors of disorder in the central nervous system (CNS). In this review, we describe the biology of the TAM receptors and ligands in the CNS. Then, we discuss the relationship between the TAM system and AD, specially focusing on its functional expression in the microglia. Finally, we also summarize some agents that could interfere with the TAM signaling pathways and discuss potential difficulties and strategies for drug development.
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Affiliation(s)
- Shiqi Zhou
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yanyan Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Zhao Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yuhe Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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6
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Brosseron F, Maass A, Kleineidam L, Ravichandran KA, Kolbe CC, Wolfsgruber S, Santarelli F, Häsler LM, McManus R, Ising C, Röske S, Peters O, Cosma NC, Schneider LS, Wang X, Priller J, Spruth EJ, Altenstein S, Schneider A, Fliessbach K, Wiltfang J, Schott BH, Buerger K, Janowitz D, Dichgans M, Perneczky R, Rauchmann BS, Teipel S, Kilimann I, Görß D, Laske C, Munk MH, Düzel E, Yakupow R, Dobisch L, Metzger CD, Glanz W, Ewers M, Dechent P, Haynes JD, Scheffler K, Roy N, Rostamzadeh A, Spottke A, Ramirez A, Mengel D, Synofzik M, Jucker M, Latz E, Jessen F, Wagner M, Heneka MT. Serum IL-6, sAXL, and YKL-40 as systemic correlates of reduced brain structure and function in Alzheimer's disease: results from the DELCODE study. Alzheimers Res Ther 2023; 15:13. [PMID: 36631909 PMCID: PMC9835320 DOI: 10.1186/s13195-022-01118-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 11/06/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Neuroinflammation constitutes a pathological hallmark of Alzheimer's disease (AD). Still, it remains unresolved if peripheral inflammatory markers can be utilized for research purposes similar to blood-based beta-amyloid and neurodegeneration measures. We investigated experimental inflammation markers in serum and analyzed interrelations towards AD pathology features in a cohort with a focus on at-risk stages of AD. METHODS Data of 74 healthy controls (HC), 99 subjective cognitive decline (SCD), 75 mild cognitive impairment (MCI), 23 AD relatives, and 38 AD subjects were obtained from the DELCODE cohort. A panel of 20 serum biomarkers was determined using immunoassays. Analyses were adjusted for age, sex, APOE status, and body mass index and included correlations between serum and CSF marker levels and AD biomarker levels. Group-wise comparisons were based on screening diagnosis and routine AD biomarker-based schematics. Structural imaging data were combined into composite scores representing Braak stage regions and related to serum biomarker levels. The Preclinical Alzheimer's Cognitive Composite (PACC5) score was used to test for associations between the biomarkers and cognitive performance. RESULTS Each experimental marker displayed an individual profile of interrelations to AD biomarkers, imaging, or cognition features. Serum-soluble AXL (sAXL), IL-6, and YKL-40 showed the most striking associations. Soluble AXL was significantly elevated in AD subjects with pathological CSF beta-amyloid/tau profile and negatively related to structural imaging and cognitive function. Serum IL-6 was negatively correlated to structural measures of Braak regions, without associations to corresponding IL-6 CSF levels or other AD features. Serum YKL-40 correlated most consistently to CSF AD biomarker profiles and showed the strongest negative relations to structure, but none to cognitive outcomes. CONCLUSIONS Serum sAXL, IL-6, and YKL-40 relate to different AD features, including the degree of neuropathology and cognitive functioning. This may suggest that peripheral blood signatures correspond to specific stages of the disease. As serum markers did not reflect the corresponding CSF protein levels, our data highlight the need to interpret serum inflammatory markers depending on the respective protein's specific biology and cellular origin. These marker-specific differences will have to be considered to further define and interpret blood-based inflammatory profiles for AD research.
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Affiliation(s)
- Frederic Brosseron
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Anne Maass
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Luca Kleineidam
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Kishore Aravind Ravichandran
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Carl-Christian Kolbe
- grid.15090.3d0000 0000 8786 803XInstitute of Innate Immunity, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany ,grid.420044.60000 0004 0374 4101Bayer AG, Alfred-Nobel-Straße 50, 40789 Monheim am Rhein, Germany
| | - Steffen Wolfsgruber
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Francesco Santarelli
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Lisa M. Häsler
- grid.10392.390000 0001 2190 1447Hertie Institute for Clinical Brain Research, Department Cellular Neurology, University of Tübingen, Otfried-Müller-Strasse 27, 72076 Tübingen, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany
| | - Róisín McManus
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Christina Ising
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany ,grid.452408.fExcellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Köln, Germany
| | - Sandra Röske
- grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Oliver Peters
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Charitéplatz 1, 10117 Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - Nicoleta-Carmen Cosma
- grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Luisa-Sophie Schneider
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Charitéplatz 1, 10117 Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - Xiao Wang
- grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - Josef Priller
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Charitéplatz 1, 10117 Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany ,grid.6936.a0000000123222966Department of Psychiatry and Psychotherapy, Technical University Munich, 81675 Munich, Germany
| | - Eike J. Spruth
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Charitéplatz 1, 10117 Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - Slawek Altenstein
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Charitéplatz 1, 10117 Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - Anja Schneider
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Klaus Fliessbach
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Jens Wiltfang
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075 Göttingen, Germany ,grid.7450.60000 0001 2364 4210Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, University of Göttingen, Von-Siebold-Str. 5, 37075 Göttingen, Germany ,grid.7311.40000000123236065Neurosciences and Signaling Group, Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Björn H. Schott
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075 Göttingen, Germany ,grid.7450.60000 0001 2364 4210Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, University of Göttingen, Von-Siebold-Str. 5, 37075 Göttingen, Germany ,grid.418723.b0000 0001 2109 6265Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118 Magdeburg, Germany
| | - Katharina Buerger
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen-Strasse 17, 81377 Munich, Germany ,grid.411095.80000 0004 0477 2585Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - Daniel Janowitz
- grid.411095.80000 0004 0477 2585Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - Martin Dichgans
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen-Strasse 17, 81377 Munich, Germany ,grid.411095.80000 0004 0477 2585Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - Robert Perneczky
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen-Strasse 17, 81377 Munich, Germany ,grid.411095.80000 0004 0477 2585Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany ,grid.452617.3Munich Cluster for Systems Neurology (SyNergy) Munich, Munich, Germany ,grid.7445.20000 0001 2113 8111Ageing Epidemiology Research Unit (AGE), School of Public Health, Imperial College London, London, UK ,grid.11835.3e0000 0004 1936 9262Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK
| | - Boris-Stephan Rauchmann
- grid.411095.80000 0004 0477 2585Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Stefan Teipel
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Gehlsheimer Str. 20, 18147 Rostock, Germany ,grid.413108.f0000 0000 9737 0454Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - Ingo Kilimann
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Gehlsheimer Str. 20, 18147 Rostock, Germany ,grid.413108.f0000 0000 9737 0454Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - Doreen Görß
- grid.413108.f0000 0000 9737 0454Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - Christoph Laske
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany ,grid.10392.390000 0001 2190 1447Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Matthias H. Munk
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany ,grid.10392.390000 0001 2190 1447Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Emrah Düzel
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany ,grid.5807.a0000 0001 1018 4307Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany
| | - Renat Yakupow
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Laura Dobisch
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Coraline D. Metzger
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany ,grid.5807.a0000 0001 1018 4307Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany ,grid.5807.a0000 0001 1018 4307Department of Psychiatry and Psychotherapy, Otto-von-Guericke University, Magdeburg, Germany
| | - Wenzel Glanz
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Michael Ewers
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - Peter Dechent
- grid.7450.60000 0001 2364 4210MR-Research in Neurosciences, Department of Cognitive Neurology, Georg-August-University, Goettingen, Germany
| | - John Dylan Haynes
- grid.6363.00000 0001 2218 4662Bernstein Center for Computational Neurosciences, Charité – Universitätsmedizin, Berlin, Germany
| | - Klaus Scheffler
- grid.10392.390000 0001 2190 1447Department for Biomedical Magnetic Resonance, University of Tübingen, 72076 Tübingen, Germany
| | - Nina Roy
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany
| | - Ayda Rostamzadeh
- grid.6190.e0000 0000 8580 3777Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - Annika Spottke
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.10388.320000 0001 2240 3300Department of Neurology, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Alfredo Ramirez
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany ,grid.452408.fExcellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Köln, Germany ,grid.6190.e0000 0000 8580 3777Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany ,Department of Psychiatry & Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, San Antonio, TX USA
| | - David Mengel
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany ,grid.10392.390000 0001 2190 1447Division Translational Genomics of Neurodegenerative Diseases, Center for Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried-Müller-Strasse 27, 72076 Tübingen, Germany
| | - Matthis Synofzik
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany ,grid.10392.390000 0001 2190 1447Division Translational Genomics of Neurodegenerative Diseases, Center for Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried-Müller-Strasse 27, 72076 Tübingen, Germany
| | - Mathias Jucker
- grid.10392.390000 0001 2190 1447Hertie Institute for Clinical Brain Research, Department Cellular Neurology, University of Tübingen, Otfried-Müller-Strasse 27, 72076 Tübingen, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Otfried-Müller-Straße 27, 72076 Tübingen, Germany
| | - Eicke Latz
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XInstitute of Innate Immunity, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Frank Jessen
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.452408.fExcellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Köln, Germany ,grid.6190.e0000 0000 8580 3777Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - Michael Wagner
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Michael T. Heneka
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany ,grid.15090.3d0000 0000 8786 803XDepartment of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Venusberg-Campus 1, 53127 Bonn, Germany ,grid.16008.3f0000 0001 2295 9843Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7 avenue des Hauts Fourneaux, 4362 Esch-sur- Alzette, Luxembourg
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7
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Wang ZB, Ma YH, Sun Y, Tan L, Wang HF, Yu JT. Interleukin-3 is associated with sTREM2 and mediates the correlation between amyloid-β and tau pathology in Alzheimer's disease. J Neuroinflammation 2022; 19:316. [PMID: 36578067 PMCID: PMC9798566 DOI: 10.1186/s12974-022-02679-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/20/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Dysfunction of glial cell communication is involved in Alzheimer's disease (AD) pathogenesis, and the recent study reported that astrocytic secreted interleukin-3 (IL-3) participated in astrocyte-microglia crosstalk and restricted AD pathology in mice, but the effect of IL-3 on the pathological progression of AD in human is still unclear. METHODS A total of 311 participants with cerebrospinal fluid (CSF) IL-3, soluble triggering receptor expressed on myeloid cells 2 (sTREM2), and AD biomarkers were included from the Alzheimer's disease Neuroimaging Initiative (ADNI). We assessed the associations of IL-3 with sTREM2 and AD biomarkers at baseline, and with cognitive change in longitudinal study. The mediation models were used to explore the potential mechanism of how IL-3 affects AD pathology. RESULTS We found that CSF IL-3 was significantly associated with CSF sTREM2 and CSF AD core biomarkers (Aβ42, p-tau, and t-tau) at baseline, and was also markedly related to cognitive decline in longitudinal analysis. Moreover, mediation analysis revealed that CSF IL-3 modulated the level of CSF sTREM2 and contributed to tau pathology (as measured by CSF p-tau/t-tau) and subsequent cognitive decline. In addition, Aβ pathology (as measured by CSF Aβ42) affected the development of tau pathology partly by modifying the levels of CSF IL-3 and CSF sTREM2. Furthermore, the effect of Aβ pathology on cognitive decline was partially mediated by the pathway from CSF IL-3 and CSF sTREM2 to tau pathology. CONCLUSIONS Our findings provide evidence to suggest that IL-3 is linked to sTREM2 and mediates the correlation between Aβ pathology to tau pathology. It indicates that IL-3 may be a major factor in the spreading from Aβ pathology to tau pathology to cognitive impairment.
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Affiliation(s)
- Zhi-Bo Wang
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, No. 5 Donghai Middle Road, Qingdao, China
| | - Ya-Hui Ma
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, No. 5 Donghai Middle Road, Qingdao, China
| | - Yan Sun
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, No. 5 Donghai Middle Road, Qingdao, China
| | - Lan Tan
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, No. 5 Donghai Middle Road, Qingdao, China
| | - Hui-Fu Wang
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, No. 5 Donghai Middle Road, Qingdao, China ,grid.8547.e0000 0001 0125 2443Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Jin-Tai Yu
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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8
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Rodríguez-Giraldo M, González-Reyes RE, Ramírez-Guerrero S, Bonilla-Trilleras CE, Guardo-Maya S, Nava-Mesa MO. Astrocytes as a Therapeutic Target in Alzheimer's Disease-Comprehensive Review and Recent Developments. Int J Mol Sci 2022; 23:13630. [PMID: 36362415 PMCID: PMC9654484 DOI: 10.3390/ijms232113630] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 09/20/2023] Open
Abstract
Alzheimer's disease (AD) is a frequent and disabling neurodegenerative disorder, in which astrocytes participate in several pathophysiological processes including neuroinflammation, excitotoxicity, oxidative stress and lipid metabolism (along with a critical role in apolipoprotein E function). Current evidence shows that astrocytes have both neuroprotective and neurotoxic effects depending on the disease stage and microenvironmental factors. Furthermore, astrocytes appear to be affected by the presence of amyloid-beta (Aβ), with alterations in calcium levels, gliotransmission and proinflammatory activity via RAGE-NF-κB pathway. In addition, astrocytes play an important role in the metabolism of tau and clearance of Aβ through the glymphatic system. In this review, we will discuss novel pharmacological and non-pharmacological treatments focused on astrocytes as therapeutic targets for AD. These interventions include effects on anti-inflammatory/antioxidant systems, glutamate activity, lipid metabolism, neurovascular coupling and glymphatic system, calcium dysregulation, and in the release of peptides which affects glial and neuronal function. According to the AD stage, these therapies may be of benefit in either preventing or delaying the progression of the disease.
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Affiliation(s)
| | | | | | | | | | - Mauricio O. Nava-Mesa
- Grupo de Investigación en Neurociencias (NeURos), Centro de Neurociencias Neurovitae-UR, Instituto de Medicina Traslacional (IMT), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá 111711, Colombia
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9
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Yasuno F, Watanabe A, Kimura Y, Yamauchi Y, Ogata A, Ikenuma H, Abe J, Minami H, Nihashi T, Yokoi K, Hattori S, Shimoda N, Kasuga K, Ikeuchi T, Takeda A, Sakurai T, Ito K, Kato T. Estimation of blood-based biomarkers of glial activation related to neuroinflammation. Brain Behav Immun Health 2022; 26:100549. [PMID: 36388135 PMCID: PMC9650015 DOI: 10.1016/j.bbih.2022.100549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/08/2022] [Accepted: 10/30/2022] [Indexed: 11/07/2022] Open
Abstract
Background Neuroinflammation is a well-known feature of Alzheimer’s disease (AD), and a blood-based test for estimating the levels of neuroinflammation would be expected. In this study, we examined and validated a model using blood-based biomarkers to predict the level of glial activation due to neuroinflammation, as estimated by 11C-DPA-713 positron emission tomography (PET) imaging. Methods We included 15 patients with AD and 10 cognitively normal (CN) subjects. Stepwise backward deletion multiple regression analysis was used to determine the predictors of the TSPO-binding potential (BPND) estimated by PET imaging. The independent variables were age, sex, diagnosis, apolipoprotein E4 positivity, body mass index and the serum concentration of blood-based biomarkers, including monocyte chemotactic protein 1 (MCP-1), fractalkine, chitinase 3-like protein-1 (CHI3L1), soluble triggering receptor expressed on myeloid cells 2 (sTREM2), and clusterin. Results Sex, diagnosis, and serum concentrations of MCP1 and sTREM2 were determined as predictors of TSPO-BPND in the Braak1-3 area. The serum concentrations of MCP1 and sTREM2 correlated positively with TSPO-BPND. In a leave one out (LOO) cross-validation (CV) analysis, the model gave a LOO CV R2 of 0.424, which indicated that this model can account for approximately 42.4% of the variance of brain TSPO-BPND. Conclusions We found that the model including serum MCP-1 and sTREM2 concentration and covariates of sex and diagnosis was the best for predicting brain TSPO-BPND. The detection of neuroinflammation in AD patients by blood-based biomarkers should be a sensitive and useful tool for making an early diagnosis and monitoring disease progression and treatment effectiveness.
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10
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Kim H, Devanand DP, Carlson S, Goldberg TE. Apolipoprotein E Genotype e2: Neuroprotection and Its Limits. Front Aging Neurosci 2022; 14:919712. [PMID: 35912085 PMCID: PMC9329577 DOI: 10.3389/fnagi.2022.919712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/09/2022] [Indexed: 11/21/2022] Open
Abstract
In this review, we comprehensively, qualitatively, and critically synthesized several features of APOE-e2, a known APOE protective variant, including its associations with longevity, cognition, and neuroimaging, and neuropathology, all in humans. If e2’s protective effects—and their limits—could be elucidated, it could offer therapeutic windows for Alzheimer’s disease (AD) prevention or amelioration. Literature examining e2 within the years 1994–2021 were considered for this review. Studies on human subjects were selectively reviewed and were excluded if observation of e2 was not specified. Effects of e2 were compared with e3 and e4, separately and as a combined non-e2 group. Our examination of existing literature indicated that the most robust protective role of e2 is in longevity and AD neuropathologies, but e2’s effect on cognition and other AD imaging markers (brain structure, function, and metabolism) were inconsistent, thus inconclusive. Notably, e2 was associated with greater risk of non-AD proteinopathies and a disadvantageous cerebrovascular profile. We identified multiple methodological shortcomings of the literature on brain function and cognition that could have contributed to inconsistent and potentially misleading findings. We make careful interpretations of existing findings and provide directions for research strategies that could effectively examine the independent and unbiased effect of e2 on AD risk.
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Affiliation(s)
- Hyun Kim
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States
- Department of Geriatric Psychiatry, New York State Psychiatric Institute, New York, NY, United States
| | - Davangere P. Devanand
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States
- Department of Geriatric Psychiatry, New York State Psychiatric Institute, New York, NY, United States
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
| | - Scott Carlson
- Department of Geriatric Psychiatry, New York State Psychiatric Institute, New York, NY, United States
| | - Terry E. Goldberg
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States
- Department of Geriatric Psychiatry, New York State Psychiatric Institute, New York, NY, United States
- Department of Anesthesiology, Columbia University Irving Medical Center, New York, NY, United States
- *Correspondence: Terry E. Goldberg,
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11
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Owlett LD, Karaahmet B, Le L, Belcher EK, Dionisio-Santos D, Olschowka JA, Elliott MR, O'Banion MK. Gas6 induces inflammation and reduces plaque burden but worsens behavior in a sex-dependent manner in the APP/PS1 model of Alzheimer's disease. J Neuroinflammation 2022; 19:38. [PMID: 35130912 PMCID: PMC8822838 DOI: 10.1186/s12974-022-02397-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/20/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Alzheimer's disease is the leading cause of dementia worldwide. TAM receptor tyrosine kinases (Tyro3, Axl, MerTK) are known for their role in engagement of phagocytosis and modulation of inflammation, and recent evidence suggests a complex relationship between Axl, Mer, and microglial phagocytosis of amyloid plaques in AD. Gas6, the primary CNS TAM ligand, reduces neuroinflammation and improves outcomes in murine models of CNS disease. Therefore, we hypothesized that AAV-mediated overexpression of Gas6 would alleviate plaque pathology, reduce neuroinflammation, and improve behavior in the APP/PS1 model of Alzheimer's disease. METHODS Adeno-associated viral vectors were used to overexpress Gas6 in the APP/PS1 model of Alzheimer's disease. Nine-month-old male and female APP/PS1 and nontransgenic littermates received bilateral stereotactic hippocampal injections of AAV-Gas6 or AAV-control, which expresses a non-functional Gas6 protein. One month after injections, mice underwent a battery of behavioral tasks to assess cognitive function and brains were processed for immunohistochemical and transcriptional analyses. RESULTS Gas6 overexpression reduced plaque burden in male APP/PS1 mice. However, contrary to our hypothesis, Gas6 increased pro-inflammatory microglial gene expression and worsened contextual fear conditioning compared to control-treated mice. Gas6 overexpression appeared to have no effect on phagocytic mechanisms in vitro or in vivo as measured by CD68 immunohistochemistry, microglial methoxy-04 uptake, and primary microglial uptake of fluorescent fibrillar amyloid beta. CONCLUSION Our data describes a triad of worsened behavior, reduced plaque number, and an increase in proinflammatory signaling in a sex-specific manner. While Gas6 has historically induced anti-inflammatory signatures in the peripheral nervous system, our data suggest an alternative, proinflammatory role in the context of Alzheimer's disease pathology.
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Affiliation(s)
- Laura D Owlett
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - Berke Karaahmet
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - Linh Le
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - Elizabeth K Belcher
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - Dawling Dionisio-Santos
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - John A Olschowka
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA
| | - Michael R Elliott
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - M Kerry O'Banion
- Del Monte Institute for Neuroscience, Department of Neuroscience, University of Rochester, Rochester, NY, USA.
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12
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The complement cascade in Alzheimer's disease: a systematic review and meta-analysis. Mol Psychiatry 2021; 26:5532-5541. [PMID: 31628417 DOI: 10.1038/s41380-019-0536-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/10/2019] [Accepted: 09/20/2019] [Indexed: 12/17/2022]
Abstract
Genetic evidence implicates a causal role for the complement pathway in Alzheimer's disease (AD). Since studies have shown inconsistent differences in cerebrospinal fluid (CSF) and peripheral blood complement protein concentrations between AD patients and healthy elderly, this study sought to summarize the clinical data. Original peer-reviewed articles measuring CSF and/or blood concentrations of complement or complement regulator protein concentrations in AD and healthy elderly control (HC) groups were included. Of 2966 records identified, means and standard deviations from 86 studies were summarized as standardized mean differences (SMD) by random effects meta-analyses. In CSF, concentrations of clusterin (NAD/NHC = 625/577, SMD = 0.53, Z8 = 8.81, p < 0.005; I2 < 0.005%) and complement component 3 (C3; NAD/NHC = 299/522, SMD = 0.45, Z3 = 3.21, p < 0.005; I2 = 68.40%) were significantly higher in AD, but differences in C1q, C-reactive protein (CRP), serum amyloid protein (SAP), and factor H concentrations were not significant. In peripheral blood, concentrations of CRP were elevated in AD (NAD/NHC = 3404/3332, SMD = 0.44, Z43 = 3.43, p < 0.005; I2 = 93.81%), but differences between groups in C3, C4, C1-inhibitor, SAP, factor H and clusterin concentrations were not significant, and inconsistent between studies. Of 64 complement pathway proteins or regulators in the quantitative synthesis, trends in C1q, factor B, C4a, and late-stage complement pathway components (e.g. C9) in blood, C4 in CSF, and the membrane attack complex in blood and CSF, might be investigated further. The results collectively support elevated complement pathway activity in AD, which was best characterized by increased CSF clusterin concentrations and less consistently by CSF C3 concentrations. Complement activity related to an AD diagnosis was not reflected consistently by the peripheral blood proteins investigated.
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13
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Hampel H, Nisticò R, Seyfried NT, Levey AI, Modeste E, Lemercier P, Baldacci F, Toschi N, Garaci F, Perry G, Emanuele E, Valenzuela PL, Lucia A, Urbani A, Sancesario GM, Mapstone M, Corbo M, Vergallo A, Lista S. Omics sciences for systems biology in Alzheimer's disease: State-of-the-art of the evidence. Ageing Res Rev 2021; 69:101346. [PMID: 33915266 DOI: 10.1016/j.arr.2021.101346] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 04/06/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is characterized by non-linear, genetic-driven pathophysiological dynamics with high heterogeneity in biological alterations and disease spatial-temporal progression. Human in-vivo and post-mortem studies point out a failure of multi-level biological networks underlying AD pathophysiology, including proteostasis (amyloid-β and tau), synaptic homeostasis, inflammatory and immune responses, lipid and energy metabolism, oxidative stress. Therefore, a holistic, systems-level approach is needed to fully capture AD multi-faceted pathophysiology. Omics sciences - genomics, epigenomics, transcriptomics, proteomics, metabolomics, lipidomics - embedded in the systems biology (SB) theoretical and computational framework can generate explainable readouts describing the entire biological continuum of a disease. Such path in Neurology is encouraged by the promising results of omics sciences and SB approaches in Oncology, where stage-driven pathway-based therapies have been developed in line with the precision medicine paradigm. Multi-omics data integrated in SB network approaches will help detect and chart AD upstream pathomechanistic alterations and downstream molecular effects occurring in preclinical stages. Finally, integrating omics and neuroimaging data - i.e., neuroimaging-omics - will identify multi-dimensional biological signatures essential to track the clinical-biological trajectories, at the subpopulation or even individual level.
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14
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Shi L, Buckley NJ, Bos I, Engelborghs S, Sleegers K, Frisoni GB, Wallin A, Lléo A, Popp J, Martinez-Lage P, Legido-Quigley C, Barkhof F, Zetterberg H, Visser PJ, Bertram L, Lovestone S, Nevado-Holgado AJ. Plasma Proteomic Biomarkers Relating to Alzheimer's Disease: A Meta-Analysis Based on Our Own Studies. Front Aging Neurosci 2021; 13:712545. [PMID: 34366831 PMCID: PMC8335587 DOI: 10.3389/fnagi.2021.712545] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/21/2021] [Indexed: 01/21/2023] Open
Abstract
Background and Objective: Plasma biomarkers for the diagnosis and stratification of Alzheimer's disease (AD) are intensively sought. However, no plasma markers are well established so far for AD diagnosis. Our group has identified and validated various blood-based proteomic biomarkers relating to AD pathology in multiple cohorts. The study aims to conduct a meta-analysis based on our own studies to systematically assess the diagnostic performance of our previously identified blood biomarkers. Methods: To do this, we included seven studies that our group has conducted during the last decade. These studies used either Luminex xMAP or ELISA to measure proteomic biomarkers. As proteins measured in these studies differed, we selected protein based on the criteria that it must be measured in at least four studies. We then examined biomarker performance using random-effect meta-analyses based on the mean difference between biomarker concentrations in AD and controls (CTL), AD and mild cognitive impairment (MCI), MCI, and CTL as well as MCI converted to dementia (MCIc) and non-converted (MCInc) individuals. Results: An overall of 2,879 subjects were retrieved for meta-analysis including 1,053 CTL, 895 MCI, 882 AD, and 49 frontotemporal dementia (FTD) patients. Six proteins were measured in at least four studies and were chosen for meta-analyses for AD diagnosis. Of them, three proteins had significant difference between AD and controls, among which alpha-2-macroglobulin (A2M) and ficolin-2 (FCN2) increased in AD while fibrinogen gamma chain (FGG) decreased in AD compared to CTL. Furthermore, FGG significantly increased in FTD compared to AD. None of the proteins passed the significance between AD and MCI, or MCI and CTL, or MCIc and MCInc, although complement component 4 (CC4) tended to increase in MCIc individuals compared to MCInc. Conclusions: The results suggest that A2M, FCN2, and FGG are promising biomarkers to discriminate AD patients from controls, which are worthy of further validation.
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Affiliation(s)
- Liu Shi
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Noel J Buckley
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Isabelle Bos
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, Netherlands.,Alzheimer Center, VU University Medical Center, Amsterdam, Netherlands
| | - Sebastiaan Engelborghs
- Reference Center for Biological Markers of Dementia (BIODEM), Institute Born-Bunge, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.,Department of Neurology, Universitair Ziekenhuis Brussel and Center for Neurociences (C4N), Vrije Universiteit Brussel, Brussels, Belgium
| | - Kristel Sleegers
- Complex Genetics Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium.,Institute Born-Bunge, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | | | - Anders Wallin
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Alberto Lléo
- Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Julius Popp
- Department of Psychiatry, University Hospital of Lausanne, Lausanne, Switzerland.,Geriatric Psychiatry, Department of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | | | - Cristina Legido-Quigley
- Kings College London, London, United Kingdom.,The Systems Medicine Group, Steno Diabetes Center, Gentofte, Denmark
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, Netherlands.,UCL Institutes of Neurology and Healthcare Engineering, London, United Kingdom
| | - Henrik Zetterberg
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,UK Dementia Research Institute at UCL, London, United Kingdom.,Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom
| | - Pieter Jelle Visser
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, Netherlands.,Alzheimer Center, VU University Medical Center, Amsterdam, Netherlands
| | - Lars Bertram
- Lübeck Interdisciplinary Platform for Genome Analytics, University of Lübeck, Lübeck, Germany.,Department of Psychology, University of Oslo, Oslo, Norway
| | - Simon Lovestone
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom.,Janssen R&D, High Wycombe, United Kingdom
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15
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McAlpine CS, Park J, Griciuc A, Kim E, Choi SH, Iwamoto Y, Kiss MG, Christie KA, Vinegoni C, Poller WC, Mindur JE, Chan CT, He S, Janssen H, Wong LP, Downey J, Singh S, Anzai A, Kahles F, Jorfi M, Feruglio PF, Sadreyev RI, Weissleder R, Kleinstiver BP, Nahrendorf M, Tanzi RE, Swirski FK. Astrocytic interleukin-3 programs microglia and limits Alzheimer's disease. Nature 2021; 595:701-706. [PMID: 34262178 PMCID: PMC8934148 DOI: 10.1038/s41586-021-03734-6] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/17/2021] [Indexed: 02/04/2023]
Abstract
Communication within the glial cell ecosystem is essential for neuronal and brain health1-3. The influence of glial cells on the accumulation and clearance of β-amyloid (Aβ) and neurofibrillary tau in the brains of individuals with Alzheimer's disease (AD) is poorly understood, despite growing awareness that these are therapeutically important interactions4,5. Here we show, in humans and mice, that astrocyte-sourced interleukin-3 (IL-3) programs microglia to ameliorate the pathology of AD. Upon recognition of Aβ deposits, microglia increase their expression of IL-3Rα-the specific receptor for IL-3 (also known as CD123)-making them responsive to IL-3. Astrocytes constitutively produce IL-3, which elicits transcriptional, morphological, and functional programming of microglia to endow them with an acute immune response program, enhanced motility, and the capacity to cluster and clear aggregates of Aβ and tau. These changes restrict AD pathology and cognitive decline. Our findings identify IL-3 as a key mediator of astrocyte-microglia cross-talk and a node for therapeutic intervention in AD.
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Affiliation(s)
- Cameron S McAlpine
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Cardiovascular Research Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute and Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joseph Park
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Ana Griciuc
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Eunhee Kim
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Se Hoon Choi
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Yoshiko Iwamoto
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Máté G Kiss
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathleen A Christie
- Center for Genomic Medicine, Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Claudio Vinegoni
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Wolfram C Poller
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Cardiovascular Research Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John E Mindur
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Christopher T Chan
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shun He
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Henrike Janssen
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lai Ping Wong
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Jeffrey Downey
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sumnima Singh
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Atsushi Anzai
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Florian Kahles
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Mehdi Jorfi
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Paolo Fumene Feruglio
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Ruslan I Sadreyev
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ralph Weissleder
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Benjamin P Kleinstiver
- Center for Genomic Medicine, Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Matthias Nahrendorf
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Rudolph E Tanzi
- Genetics and Aging Research Unit, McCance Center for Brain Health, Mass General Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
| | - Filip K Swirski
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
- Cardiovascular Research Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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16
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Clark C, Dayon L, Masoodi M, Bowman GL, Popp J. An integrative multi-omics approach reveals new central nervous system pathway alterations in Alzheimer's disease. ALZHEIMERS RESEARCH & THERAPY 2021; 13:71. [PMID: 33794997 PMCID: PMC8015070 DOI: 10.1186/s13195-021-00814-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/23/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Multiple pathophysiological processes have been described in Alzheimer's disease (AD). Their inter-individual variations, complex interrelations, and relevance for clinical manifestation and disease progression remain poorly understood. We hypothesize that specific molecular patterns indicating both known and yet unidentified pathway alterations are associated with distinct aspects of AD pathology. METHODS We performed multi-level cerebrospinal fluid (CSF) omics in a well-characterized cohort of older adults with normal cognition, mild cognitive impairment, and mild dementia. Proteomics, metabolomics, lipidomics, one-carbon metabolism, and neuroinflammation related molecules were analyzed at single-omic level with correlation and regression approaches. Multi-omics factor analysis was used to integrate all biological levels. Identified analytes were used to construct best predictive models of the presence of AD pathology and of cognitive decline with multifactorial regression analysis. Pathway enrichment analysis identified pathway alterations in AD. RESULTS Multi-omics integration identified five major dimensions of heterogeneity explaining the variance within the cohort and differentially associated with AD. Further analysis exposed multiple interactions between single 'omics modalities and distinct multi-omics molecular signatures differentially related to amyloid pathology, neuronal injury, and tau hyperphosphorylation. Enrichment pathway analysis revealed overrepresentation of the hemostasis, immune response, and extracellular matrix signaling pathways in association with AD. Finally, combinations of four molecules improved prediction of both AD (protein 14-3-3 zeta/delta, clusterin, interleukin-15, and transgelin-2) and cognitive decline (protein 14-3-3 zeta/delta, clusterin, cholesteryl ester 27:1 16:0 and monocyte chemoattractant protein-1). CONCLUSIONS Applying an integrative multi-omics approach we report novel molecular and pathways alterations associated with AD pathology. These findings are relevant for the development of personalized diagnosis and treatment approaches in AD.
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Affiliation(s)
- Christopher Clark
- Institute for Regenerative Medicine, University of Zürich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Loïc Dayon
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, 1015, Lausanne, Switzerland.,Nestlé Institute of Food Safety & Analytical Sciences, Nestlé Research, EPFL Innovation Park, 1015, Lausanne, Switzerland.,Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Mojgan Masoodi
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, 1015, Lausanne, Switzerland.,Institute of Clinical Chemistry, University Hospital Bern, Bern, Switzerland
| | - Gene L Bowman
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, 1015, Lausanne, Switzerland.,Department of Neurology, NIA-Layton Aging and Alzheimer's Disease Center, Oregon Health & Science University, Portland, USA
| | - Julius Popp
- Old Age Psychiatry, Centre Hospitalier Universitaire Vaudois, Rue du Bugnon 46, 1011, Lausanne, Switzerland. .,Department of Geriatric Psychiatry, University Hospital of Psychiatry Zürich, Centre for Gerontopsychiatric Medicine, Minervastrasse 145, P.O. Box 341, 8032, Zürich, Switzerland.
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17
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Ashford MT, Veitch DP, Neuhaus J, Nosheny RL, Tosun D, Weiner MW. The search for a convenient procedure to detect one of the earliest signs of Alzheimer's disease: A systematic review of the prediction of brain amyloid status. Alzheimers Dement 2021; 17:866-887. [PMID: 33583100 DOI: 10.1002/alz.12253] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/10/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Convenient, cost-effective tests for amyloid beta (Aβ) are needed to identify those at higher risk for developing Alzheimer's disease (AD). This systematic review evaluates recent models that predict dichotomous Aβ. (PROSPERO: CRD42020144734). METHODS We searched Embase and identified 73 studies from 29,581 for review. We assessed study quality using established tools, extracted information, and reported results narratively. RESULTS We identified few high-quality studies due to concerns about Aβ determination and analytical issues. The most promising convenient, inexpensive classifiers consist of age, apolipoprotein E genotype, cognitive measures, and/or plasma Aβ. Plasma Aβ may be sufficient if pre-analytical variables are standardized and scalable assays developed. Some models lowered costs associated with clinical trial recruitment or clinical screening. DISCUSSION Conclusions about models are difficult due to study heterogeneity and quality. Promising prediction models used demographic, cognitive/neuropsychological, imaging, and plasma Aβ measures. Further studies using standardized Aβ determination, and improved model validation are required.
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Affiliation(s)
- Miriam T Ashford
- Department of Veterans Affairs Medical Center, Northern California Institute for Research and Education, San Francisco, California, USA.,Department of Veterans Affairs Medical Center, Center for Imaging and Neurodegenerative Diseases, San Francisco, California, USA
| | - Dallas P Veitch
- Department of Veterans Affairs Medical Center, Northern California Institute for Research and Education, San Francisco, California, USA
| | - John Neuhaus
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Rachel L Nosheny
- Department of Veterans Affairs Medical Center, Center for Imaging and Neurodegenerative Diseases, San Francisco, California, USA.,Department of Psychiatry, University of California San Francisco, San Francisco, California, USA
| | - Duygu Tosun
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
| | - Michael W Weiner
- Department of Veterans Affairs Medical Center, Northern California Institute for Research and Education, San Francisco, California, USA.,Department of Veterans Affairs Medical Center, Center for Imaging and Neurodegenerative Diseases, San Francisco, California, USA.,Department of Psychiatry, University of California San Francisco, San Francisco, California, USA.,Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA.,Department of Medicine, University of California San Francisco, San Francisco, California, USA.,Department of Neurology, University of California San Francisco, San Francisco, California, USA
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18
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Increasing the reproducibility of fluid biomarker studies in neurodegenerative studies. Nat Commun 2020; 11:6252. [PMID: 33288742 PMCID: PMC7721731 DOI: 10.1038/s41467-020-19957-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022] Open
Abstract
Biomarkers have revolutionized scientific research on neurodegenerative diseases, in particular Alzheimer's disease, transformed drug trial design, and are also increasingly improving patient management in clinical practice. A few key cerebrospinal fluid biomarkers have been robustly associated with neurodegenerative diseases. Several novel biomarkers are very promising, especially blood-based markers. However, many biomarker findings have had low reproducibility despite initial promising results. In this perspective, we identify possible sources for low reproducibility of studies on fluid biomarkers for neurodegenerative diseases, with a focus on Alzheimer's disease. We suggest guidelines for researchers and journal editors, with the aim to improve reproducibility of findings.
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19
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Xu J, Bankov G, Kim M, Wretlind A, Lord J, Green R, Hodges A, Hye A, Aarsland D, Velayudhan L, Dobson RJB, Proitsi P, Legido-Quigley C. Integrated lipidomics and proteomics network analysis highlights lipid and immunity pathways associated with Alzheimer's disease. Transl Neurodegener 2020; 9:36. [PMID: 32951606 PMCID: PMC7504646 DOI: 10.1186/s40035-020-00215-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/18/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND There is an urgent need to understand the pathways and processes underlying Alzheimer's disease (AD) for early diagnosis and development of effective treatments. This study was aimed to investigate Alzheimer's dementia using an unsupervised lipid, protein and gene multi-omics integrative approach. METHODS A lipidomics dataset comprising 185 AD patients, 40 mild cognitive impairment (MCI) individuals and 185 controls, and two proteomics datasets (295 AD, 159 MCI and 197 controls) were used for weighted gene co-expression network analyses (WGCNA). Correlations of modules created within each modality with clinical AD diagnosis, brain atrophy measures and disease progression, as well as their correlations with each other, were analyzed. Gene ontology enrichment analysis was employed to examine the biological processes and molecular and cellular functions of protein modules associated with AD phenotypes. Lipid species were annotated in the lipid modules associated with AD phenotypes. The associations between established AD risk loci and the lipid/protein modules that showed high correlation with AD phenotypes were also explored. RESULTS Five of the 20 identified lipid modules and five of the 17 identified protein modules were correlated with clinical AD diagnosis, brain atrophy measures and disease progression. The lipid modules comprising phospholipids, triglycerides, sphingolipids and cholesterol esters were correlated with AD risk loci involved in immune response and lipid metabolism. The five protein modules involved in positive regulation of cytokine production, neutrophil-mediated immunity, and humoral immune responses were correlated with AD risk loci involved in immune and complement systems and in lipid metabolism (the APOE ε4 genotype). CONCLUSIONS Modules of tightly regulated lipids and proteins, drivers in lipid homeostasis and innate immunity, are strongly associated with AD phenotypes.
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Affiliation(s)
- Jin Xu
- Institute of Pharmaceutical Science, King's College London, London, UK
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Giulia Bankov
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Min Kim
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | | | - Jodie Lord
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Rebecca Green
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Angela Hodges
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Abdul Hye
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Dag Aarsland
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Center for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
| | - Latha Velayudhan
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Richard J B Dobson
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
| | - Petroula Proitsi
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
| | - Cristina Legido-Quigley
- Institute of Pharmaceutical Science, King's College London, London, UK.
- Steno Diabetes Center Copenhagen, Gentofte, Denmark.
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20
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Kamer AR, Craig RG, Niederman R, Fortea J, de Leon MJ. Periodontal disease as a possible cause for Alzheimer's disease. Periodontol 2000 2020; 83:242-271. [PMID: 32385876 DOI: 10.1111/prd.12327] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/23/2019] [Indexed: 12/13/2022]
Abstract
Approximately 47 million people worldwide have been diagnosed with dementia, 60%-80% of whom have dementia of the Alzheimer's disease type. Unfortunately, there is no cure in sight. Defining modifiable risk factors for Alzheimer's disease may have a significant impact on its prevalence. An increasing body of evidence suggests that chronic inflammation and microbial dysbiosis are risk factors for Alzheimer's disease. Periodontal disease is a chronic inflammatory disease that develops in response to response to microbial dysbiosis. Many studies have shown an association between periodontal disease and Alzheimer's disease. The intent of this paper was to review the existing literature and determine, using the Bradford Hill criteria, whether periodontal disease is causally related to Alzheimer's disease.
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Affiliation(s)
- Angela R Kamer
- Department of Periodontology and Implant Dentistry, New York University, College of Dentistry, New York, New York, USA
| | - Ronald G Craig
- Department of Periodontology and Implant Dentistry, New York University, College of Dentistry, New York, New York, USA.,Department of Basic Sciences and Craniofacial Biology, New York University, College of Dentistry, New York, New York, USA
| | - Richard Niederman
- Department of Epidemiology and Health Promotion, New York University, College of Dentistry, New York, New York, USA
| | - Juan Fortea
- Alzheimer Down Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau- Biomedical Research Institute Sant Pau- Universitat Autònoma de Barcelona and Barcelona Down Medical Center, Fundació Catalana Síndrome de Down, Barcelona, Spain.,Alzheimer's Disease and Other Cognitive Disorders Unit, Neurology Service, Hospital Clínic, Barcelona, Spain
| | - Mony J de Leon
- Department of Radiology, Brain Health Imaging Institute, Weill Cornell Medicine, New York, New York, USA
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21
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Zhao W, Fan J, Kulic I, Koh C, Clark A, Meuller J, Engkvist O, Barichievy S, Raynoschek C, Hicks R, Maresca M, Wang Q, Brown DG, Lok A, Parro C, Robert J, Chou HY, Zuhl AM, Wood MW, Brandon NJ, Wellington CL. Axl receptor tyrosine kinase is a regulator of apolipoprotein E. Mol Brain 2020; 13:66. [PMID: 32366277 PMCID: PMC7197143 DOI: 10.1186/s13041-020-00609-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 04/24/2020] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD), the leading cause of dementia, is a chronic neurodegenerative disease. Apolipoprotein E (apoE), which carries lipids in the brain in the form of lipoproteins, plays an undisputed role in AD pathophysiology. A high-throughput phenotypic screen was conducted using a CCF-STTG1 human astrocytoma cell line to identify small molecules that could upregulate apoE secretion. AZ7235, a previously discovered Axl kinase inhibitor, was identified to have robust apoE activity in brain microglia, astrocytes and pericytes. AZ7235 also increased expression of ATP-binding cassette protein A1 (ABCA1), which is involved in the lipidation and secretion of apoE. Moreover, AZ7235 did not exhibit Liver-X-Receptor (LXR) activity and stimulated apoE and ABCA1 expression in the absence of LXR. Target validation studies using AXL-/- CCF-STTG1 cells showed that Axl is required to mediate AZ7235 upregulation of apoE and ABCA1. Intriguingly, apoE expression and secretion was significantly attenuated in AXL-deficient CCF-STTG1 cells and reconstitution of Axl or kinase-dead Axl significantly restored apoE baseline levels, demonstrating that Axl also plays a role in maintaining apoE homeostasis in astrocytes independent of its kinase activity. Lastly, these effects may require human apoE regulatory sequences, as AZ7235 exhibited little stimulatory activity toward apoE and ABCA1 in primary murine glia derived from neonatal human APOE3 targeted-replacement mice. Collectively, we identified a small molecule that exhibits robust apoE and ABCA1 activity independent of the LXR pathway in human cells and elucidated a novel relationship between Axl and apoE homeostasis in human astrocytes.
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Affiliation(s)
- Wenchen Zhao
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Jianjia Fan
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Iva Kulic
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Cheryl Koh
- Mechanistic Biology & Profiling, Discovery Sciences, R&D, AstraZeneca, Boston, USA
| | - Amanda Clark
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Johan Meuller
- Mechanistic Biology & Profiling, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Ola Engkvist
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | | | - Carina Raynoschek
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Ryan Hicks
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Marcello Maresca
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Qi Wang
- Neuroscience, BioPharmaceuticals R&D, AstraZeneca, Boston, USA
| | - Dean G Brown
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Boston, USA
| | - Alvin Lok
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Cameron Parro
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Jerome Robert
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Hsien-Ya Chou
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Andrea M Zuhl
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Boston, USA
| | - Michael W Wood
- Neuroscience, BioPharmaceuticals R&D, AstraZeneca, Boston, USA
| | | | - Cheryl L Wellington
- Department of Pathology and Laboratory Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada.
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22
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Ashton NJ, Hye A, Rajkumar AP, Leuzy A, Snowden S, Suárez-Calvet M, Karikari TK, Schöll M, La Joie R, Rabinovici GD, Höglund K, Ballard C, Hortobágyi T, Svenningsson P, Blennow K, Zetterberg H, Aarsland D. An update on blood-based biomarkers for non-Alzheimer neurodegenerative disorders. Nat Rev Neurol 2020; 16:265-284. [PMID: 32322100 DOI: 10.1038/s41582-020-0348-0] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2020] [Indexed: 01/11/2023]
Abstract
Cerebrospinal fluid analyses and neuroimaging can identify the underlying pathophysiology at the earliest stage of some neurodegenerative disorders, but do not have the scalability needed for population screening. Therefore, a blood-based marker for such pathophysiology would have greater utility in a primary care setting and in eligibility screening for clinical trials. Rapid advances in ultra-sensitive assays have enabled the levels of pathological proteins to be measured in blood samples, but research has been predominantly focused on Alzheimer disease (AD). Nonetheless, proteins that were identified as potential blood-based biomarkers for AD, for example, amyloid-β, tau, phosphorylated tau and neurofilament light chain, are likely to be relevant to other neurodegenerative disorders that involve similar pathological processes and could also be useful for the differential diagnosis of clinical symptoms. This Review outlines the neuropathological, clinical, molecular imaging and cerebrospinal fluid features of the most common neurodegenerative disorders outside the AD continuum and gives an overview of the current status of blood-based biomarkers for these disorders.
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Affiliation(s)
- Nicholas J Ashton
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden.,Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK.,NIHR Biomedical Research Centre for Mental Health & Biomedical Research Unit for Dementia at South London & Maudsley NHS Foundation, London, UK
| | - Abdul Hye
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK.,NIHR Biomedical Research Centre for Mental Health & Biomedical Research Unit for Dementia at South London & Maudsley NHS Foundation, London, UK
| | - Anto P Rajkumar
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK.,NIHR Biomedical Research Centre for Mental Health & Biomedical Research Unit for Dementia at South London & Maudsley NHS Foundation, London, UK.,Institute of Mental Health, University of Nottingham, Nottingham, UK
| | - Antoine Leuzy
- Clinical Memory Research Unit, Lund University, Malmö, Sweden
| | - Stuart Snowden
- Core Metabolomics and Lipidomics Laboratory, Metabolic Research Laboratories, Institute of Metabolic Science, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Marc Suárez-Calvet
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Catalonia, Spain.,Department of Neurology, Hospital del Mar, Barcelona, Catalonia, Spain
| | - Thomas K Karikari
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Michael Schöll
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden.,Clinical Memory Research Unit, Lund University, Malmö, Sweden.,Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Renaud La Joie
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Gil D Rabinovici
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Kina Höglund
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Department of Neurobiology, Care Sciences and Society, Center for Alzheimer Disease Research, Neurogeriatrics Division, Karolinska Institutet, Novum, Huddinge, Stockholm, Sweden
| | | | - Tibor Hortobágyi
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK.,MTA-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, Debrecen, Hungary
| | - Per Svenningsson
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK.,Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK.,UK Dementia Research Institute at UCL, London, UK
| | - Dag Aarsland
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK. .,NIHR Biomedical Research Centre for Mental Health & Biomedical Research Unit for Dementia at South London & Maudsley NHS Foundation, London, UK. .,Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway.
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23
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Westwood S, Baird AL, Anand SN, Nevado-Holgado AJ, Kormilitzin A, Shi L, Hye A, Ashton NJ, Morgan AR, Bos I, Vos SJ, Baker S, Buckley NJ, Ten Kate M, Scheltens P, Teunissen CE, Vandenberghe R, Gabel S, Meersmans K, Engelborghs S, De Roeck EE, Sleegers K, Frisoni GB, Blin O, Richardson JC, Bordet R, Molinuevo JL, Rami L, Wallin A, Kettunen P, Tsolaki M, Verhey F, Lléo A, Sala I, Popp J, Peyratout G, Martinez-Lage P, Tainta M, Johannsen P, Freund-Levi Y, Frölich L, Dobricic V, Legido-Quigley C, Bertram L, Barkhof F, Zetterberg H, Morgan BP, Streffer J, Visser PJ, Lovestone S. Validation of Plasma Proteomic Biomarkers Relating to Brain Amyloid Burden in the EMIF-Alzheimer's Disease Multimodal Biomarker Discovery Cohort. J Alzheimers Dis 2020; 74:213-225. [PMID: 31985466 PMCID: PMC7175945 DOI: 10.3233/jad-190434] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have previously investigated, discovered, and replicated plasma protein biomarkers for use to triage potential trials participants for PET or cerebrospinal fluid measures of Alzheimer's disease (AD) pathology. This study sought to undertake validation of these candidate plasma biomarkers in a large, multi-center sample collection. Targeted plasma analyses of 34 proteins with prior evidence for prediction of in vivo pathology were conducted in up to 1,000 samples from cognitively healthy elderly individuals, people with mild cognitive impairment, and in patients with AD-type dementia, selected from the EMIF-AD catalogue. Proteins were measured using Luminex xMAP, ELISA, and Meso Scale Discovery assays. Seven proteins replicated in their ability to predict in vivo amyloid pathology. These proteins form a biomarker panel that, along with age, could significantly discriminate between individuals with high and low amyloid pathology with an area under the curve of 0.74. The performance of this biomarker panel remained consistent when tested in apolipoprotein E ɛ4 non-carrier individuals only. This blood-based panel is biologically relevant, measurable using practical immunocapture arrays, and could significantly reduce the cost incurred to clinical trials through screen failure.
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Affiliation(s)
| | | | | | | | | | - Liu Shi
- Department of Psychiatry, University of Oxford, UK
| | - Abdul Hye
- Maurice Wohl Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
| | - Nicholas J. Ashton
- Maurice Wohl Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Mölndal, Sweden
- Wallenberg Centre for Molecular & Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Isabelle Bos
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
| | - Stephanie J.B. Vos
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
| | | | | | - Mara Ten Kate
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | - Philip Scheltens
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | | | | | - Silvy Gabel
- University Hospital Leuven, Leuven, Belgium
- Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Belgium
| | - Karen Meersmans
- University Hospital Leuven, Leuven, Belgium
- Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Belgium
| | - Sebastiaan Engelborghs
- Department of Neurology and Memory Clinic, Hospital Network Antwerp (ZNA) Middelheim and Hoge Beuken, University of Antwerp, Antwerp, Belgium
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Ellen E. De Roeck
- Department of Neurology and Memory Clinic, Hospital Network Antwerp (ZNA) Middelheim and Hoge Beuken, University of Antwerp, Antwerp, Belgium
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Kristel Sleegers
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Belgium
| | - Giovanni B. Frisoni
- University of Geneva, Geneva, Switzerland
- IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Olivier Blin
- AIX Marseille University, INS, Ap-Hm, Marseille, France
| | | | | | - José L. Molinuevo
- Alzheimer’s Disease & Other Cognitive Disorders Unit, Hopsital Clínic-IDIBAPS, Barcelona, Spain
- Barcelona Beta Brain Research Center, Unversitat Pompeu Fabra, Barcelona, Spain
| | - Lorena Rami
- Barcelona Beta Brain Research Center, Unversitat Pompeu Fabra, Barcelona, Spain
| | - Anders Wallin
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Petronella Kettunen
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Magda Tsolaki
- 1st Department of Neurology, AHEPA University Hospital, Makedonia, Thessaloniki, Greece
| | - Frans Verhey
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
| | - Alberto Lléo
- Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Isabel Sala
- Department of Neurology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Julius Popp
- University Hospital of Lausanne, Lausanne, Switzerland
- Geriatric Psychiatry, Department of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | | | - Pablo Martinez-Lage
- Geriatric Psychiatry, Department of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | | | - Peter Johannsen
- Danish Dementia Research Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Yvonne Freund-Levi
- Maurice Wohl Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
- Department of Neurobiology, Caring Sciences and Society (NVS), Division of Clinical Geriatrics, Karolinska Institutet, and Department of Geriatric Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Lutz Frölich
- Department of Geriatric Psychiatry, Zentralinstitut für Seelische Gesundheit, University of Heidelberg, Mannheim, Germany
| | - Valerija Dobricic
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Cristina Legido-Quigley
- Kings College London, London, UK
- The Systems Medicine Group, Steno Diabetes Center, Gentofte, Denmark
| | - Lars Bertram
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherland
- UCL Institutes of Neurology and Healthcare Engineering, London, UK
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- UK Dementia Research Institute at UCL, London, UK
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - B. Paul Morgan
- Dementia Research Institute Cardiff, Cardiff University, Cardiff, UK
| | - Johannes Streffer
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- UCB, Braine-l’Alleud, Belgium, formerly Janssen R&D, LLC. Beerse, Belgium at the Time of Study Conduct
| | - Pieter Jelle Visser
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | - Simon Lovestone
- Department of Psychiatry, University of Oxford, UK
- Janssen R&D, UK formerly affiliation (1) at the Time of the Study Conduct
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24
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Royall DR, Palmer RF. Blood-based protein mediators of senility with replications across biofluids and cohorts. Brain Commun 2019; 2:fcz036. [PMID: 32954311 PMCID: PMC7425523 DOI: 10.1093/braincomms/fcz036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/25/2019] [Accepted: 10/07/2019] [Indexed: 01/08/2023] Open
Abstract
Dementia severity can be quantitatively described by the latent dementia phenotype 'δ' and its various composite 'homologues'. We have explored δ's blood-based protein biomarkers in the Texas Alzheimer's Research and Care Consortium. However, it would be convenient to replicate them in the Alzheimer's Disease Neuroimaging Initiative. To that end, we have engineered a δ homologue from the observed cognitive performance measures common to both projects [i.e. 'd:Texas Alzheimer's Research and Care Consortium to Alzheimer's Disease Neuroimaging Initiative' (dT2A)]. In this analysis, we confirm 13/22 serum proteins as partial mediators of age's effect on dementia severity as measured by dT2A in the Texas Alzheimer's Research and Care Consortium and then replicate 4/13 in the Alzheimer's Disease Neuroimaging Initiative's plasma data. The replicated mediators of age-specific effects on dementia severity are adiponectin, follicle-stimulating hormone, pancreatic polypeptide and resistin. In their aggregate, the 13 confirmed age-specific mediators suggest that 'cognitive frailty' pays a role in dementia severity as measured by δ. We provide both discriminant and concordant support for that hypothesis. Weight, calculated low-density lipoprotein and body mass index are partial mediators of age's effect in the Texas Alzheimer's Research and Care Consortium. Biomarkers related to other disease processes (e.g. cerebrospinal fluid Alzheimer's disease-specific biomarkers in the Alzheimer's Disease Neuroimaging Initiative) are not. It now appears that dementia severity is the sum of multiple independent processes impacting δ. Each may have a unique set of mediating biomarkers. Age's unique effect appears to be at least partially mediated through proteins related to frailty. Age-specific mediation effects can be replicated across cohorts and biofluids. These proteins may offer targets for the remediation of age-specific cognitive decline (aka 'senility'), help distinguish it from other determinants of dementia severity and/or provide clues to the biology of Aging Proper.
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Affiliation(s)
- Donald R Royall
- Department of Psychiatry, The University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
- Department of Medicine, The University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
- Department of Family and Community Medicine, The University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
- The Glenn Biggs Institute for Alzheimer’s & Neurodegenerative Diseases, The University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
| | - Raymond F Palmer
- Department of Family and Community Medicine, The University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
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25
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Eke CS, Jammeh E, Li X, Carroll C, Pearson S, Ifeachor E. Identification of Optimum Panel of Blood-based Biomarkers for Alzheimer's Disease Diagnosis Using Machine Learning. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2019; 2018:3991-3994. [PMID: 30441233 DOI: 10.1109/embc.2018.8513293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
With the increasing number of people living with Alzheimer's disease (AD), there is a need for low-cost and easy to use methods to detect AD early to facilitate access to appropriate care pathways. Neuroimaging biomarkers (such as those based on PET and MRI) and biochemical biomarkers (such as those based on CSF) are recommended by international guidelines to facilitate diagnosis. However, neuroimaging is expensive and may not be widely available and CSF testing is invasive. Bloodbased biomarkers offer the potential for the development of a low-cost and more time efficient tool to detect AD to complement CSF and neuroimaging as blood is much easier to obtain. Although no single blood biomarker is yet able to detect AD, combinations of biomarkers (also called panels) have shown good results. However, a large number of biomarkers are often needed to achieve a satisfactory detection performance. In addition, it is difficult to reproduce reported results within and across different study cohorts because of data overfitting and lack of access to the datasets used in the studies. In this study, our focus is to identify an optimum panel (in terms of the least number of blood biomarkers to meet the specified diagnostic performance of 80% sensitivity and specificity) based on a widely accessible data set, and to demonstrate a testing methodology that reinforces reproducibility of results. Realizing a panel with reduced number of markers will have significant impact on the complexity and cost of diagnosis and potential development of cost-effective point of care devices.
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26
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TAM Receptor Pathways at the Crossroads of Neuroinflammation and Neurodegeneration. DISEASE MARKERS 2019; 2019:2387614. [PMID: 31636733 PMCID: PMC6766163 DOI: 10.1155/2019/2387614] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 06/04/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023]
Abstract
Increasing evidence suggests that pathogenic mechanisms underlying neurodegeneration are strongly linked with neuroinflammatory responses. Tyro3, Axl, and Mertk (TAM receptors) constitute a subgroup of the receptor tyrosine kinase family, cell surface receptors which transmit signals from the extracellular space to the cytoplasm and nucleus. TAM receptors and the corresponding ligands, Growth Arrest Specific 6 and Protein S, are expressed in different tissues, including the nervous system, playing complex roles in tissue repair, inflammation and cell survival, proliferation, and migration. In the nervous system, TAM receptor signalling modulates neurogenesis and neuronal migration, synaptic plasticity, microglial activation, phagocytosis, myelination, and peripheral nerve repair, resulting in potential interest in neuroinflammatory and neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and Multiple Sclerosis. In Alzheimer and Parkinson diseases, a role of TAM receptors in neuronal survival and pathological protein aggregate clearance has been suggested, while in Multiple Sclerosis TAM receptors are involved in myelination and demyelination processes. To better clarify roles and pathways involving TAM receptors may have important therapeutic implications, given the fine modulation of multiple molecular processes which could be reached. In this review, we summarise the roles of TAM receptors in the central nervous system, focusing on the regulation of immune responses and microglial activities and analysing in vitro and in vivo studies regarding TAM signalling involvement in neurodegeneration.
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27
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Shi L, Westwood S, Baird AL, Winchester L, Dobricic V, Kilpert F, Hong S, Franke A, Hye A, Ashton NJ, Morgan AR, Bos I, Vos SJB, Buckley NJ, Kate MT, Scheltens P, Vandenberghe R, Gabel S, Meersmans K, Engelborghs S, De Roeck EE, Sleegers K, Frisoni GB, Blin O, Richardson JC, Bordet R, Molinuevo JL, Rami L, Wallin A, Kettunen P, Tsolaki M, Verhey F, Lleó A, Alcolea D, Popp J, Peyratout G, Martinez-Lage P, Tainta M, Johannsen P, Teunissen CE, Freund-Levi Y, Frölich L, Legido-Quigley C, Barkhof F, Blennow K, Zetterberg H, Baker S, Morgan BP, Streffer J, Visser PJ, Bertram L, Lovestone S, Nevado-Holgado AJ. Discovery and validation of plasma proteomic biomarkers relating to brain amyloid burden by SOMAscan assay. Alzheimers Dement 2019; 15:1478-1488. [PMID: 31495601 PMCID: PMC6880298 DOI: 10.1016/j.jalz.2019.06.4951] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/11/2019] [Accepted: 06/23/2019] [Indexed: 11/09/2022]
Abstract
Introduction Plasma proteins have been widely studied as candidate biomarkers to predict brain amyloid deposition to increase recruitment efficiency in secondary prevention clinical trials for Alzheimer's disease. Most such biomarker studies are targeted to specific proteins or are biased toward high abundant proteins. Methods 4001 plasma proteins were measured in two groups of participants (discovery group = 516, replication group = 365) selected from the European Medical Information Framework for Alzheimer's disease Multimodal Biomarker Discovery study, all of whom had measures of amyloid. Results A panel of proteins (n = 44), along with age and apolipoprotein E (APOE) ε4, predicted brain amyloid deposition with good performance in both the discovery group (area under the curve = 0.78) and the replication group (area under the curve = 0.68). Furthermore, a causal relationship between amyloid and tau was confirmed by Mendelian randomization. Discussion The results suggest that high-dimensional plasma protein testing could be a useful and reproducible approach for measuring brain amyloid deposition.
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Affiliation(s)
- Liu Shi
- Department of Psychiatry, University of Oxford, Oxford, UK.
| | - Sarah Westwood
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Alison L Baird
- Department of Psychiatry, University of Oxford, Oxford, UK
| | | | - Valerija Dobricic
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Fabian Kilpert
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Shengjun Hong
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Abdul Hye
- Maurice Wohl Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
| | - Nicholas J Ashton
- Maurice Wohl Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK; Department of Psychiatry and Neurochemistry, University of Gothenburg, Mölndal, Sweden; Wallenberg Centre for Molecular & Translational Medicine, University of Gothenburg, Gothenburg, Sweden; NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Angharad R Morgan
- Dementia Research Institute Cardiff, Cardiff University, Cardiff, UK
| | - Isabelle Bos
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
| | - Stephanie J B Vos
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | - Noel J Buckley
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Mara Ten Kate
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | - Philip Scheltens
- Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands
| | | | - Silvy Gabel
- University Hospital Leuven, Leuven, Belgium; Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Belgium
| | - Karen Meersmans
- University Hospital Leuven, Leuven, Belgium; Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Belgium
| | - Sebastiaan Engelborghs
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium; Reference Center for Biological Markers of Dementia (BIODEM), University of Antwerp, Antwerp, Belgium; Institute Born-Bunge, University of Antwerp, Antwerp, Belgium; Department of Neurology, VUB University Hospital Brussels (UZ Brussel), Brussels, Belgium
| | - Ellen E De Roeck
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium; Reference Center for Biological Markers of Dementia (BIODEM), University of Antwerp, Antwerp, Belgium; Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Kristel Sleegers
- Institute Born-Bunge, University of Antwerp, Antwerp, Belgium; Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Edegem, Belgium
| | - Giovanni B Frisoni
- University of Geneva, Geneva, Switzerland; IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Olivier Blin
- AIX Marseille University, INS, Ap-hm, Marseille, France
| | | | - Régis Bordet
- University of Lille, Inserm, CHU Lille, Lille, France
| | - José L Molinuevo
- Alzheimer's disease & other cognitive disorders unit, Hopsital Clínic-IDIBAPS, Barcelona, Spain; Barcelona Beta Brain Research Center, Universitat Pompeu Fabra, Barcelona, Spain
| | - Lorena Rami
- Barcelona Beta Brain Research Center, Universitat Pompeu Fabra, Barcelona, Spain
| | - Anders Wallin
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Petronella Kettunen
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden; Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Magda Tsolaki
- 1st Department of Neurology, AHEPA University Hospital, Makedonia, Thessaloniki, Greece
| | - Frans Verhey
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands
| | - Alberto Lleó
- Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Daniel Alcolea
- Department of Neurology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Julius Popp
- University Hospital of Lausanne, Lausanne, Switzerland; Geriatric Psychiatry, Department of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | | | | | | | - Peter Johannsen
- Danish Dementia Research Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Charlotte E Teunissen
- Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | - Yvonne Freund-Levi
- Department of Neurobiology, Caring Sciences and Society (NVS), Division of Clinical Geriatrics, Karolinska Institutet, and Department of Geriatric Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden; Department of Psychiatry in Region Örebro County and School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Old Age Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
| | - Lutz Frölich
- Department of Geriatric Psychiatry, Zentralinstitut für Seelische Gesundheit, University of Heidelberg, Mannheim, Germany
| | - Cristina Legido-Quigley
- Kings College London, London, UK; The Systems Medicine Group, Steno Diabetes Center, Gentofte, Denmark
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherland; UCL Institutes of Neurology and Healthcare Engineering, London, UK
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; UK Dementia Research Institute at UCL, London, UK; Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | | | - B Paul Morgan
- Dementia Research Institute Cardiff, Cardiff University, Cardiff, UK
| | - Johannes Streffer
- Reference Center for Biological Markers of Dementia (BIODEM), University of Antwerp, Antwerp, Belgium; Janssen R&D, LLC, Beerse, Belgium
| | - Pieter Jelle Visser
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centrum Limburg, Maastricht University, Maastricht, the Netherlands; Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands; Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
| | - Lars Bertram
- Lübeck Interdisciplinary Platform for Genome Analytics, Institutes of Neurogenetics and Cardiogenetics, University of Lübeck, Lübeck, Germany; Department of Psychology, University of Oslo, Oslo, Norway
| | - Simon Lovestone
- Department of Psychiatry, University of Oxford, Oxford, UK; Janssen-Cilag UK, formerly Department of Psychiatry, University of Oxford, Oxford, UK
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Zetterberg H, Burnham SC. Blood-based molecular biomarkers for Alzheimer's disease. Mol Brain 2019; 12:26. [PMID: 30922367 PMCID: PMC6437931 DOI: 10.1186/s13041-019-0448-1] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 03/15/2019] [Indexed: 12/18/2022] Open
Abstract
A major barrier to the effective conduct of clinical trials of new drug candidates against Alzheimer’s disease (AD) and to identifying patients for receiving future disease-modifying treatments is the limited capacity of the current health system to find and diagnose patients with early AD pathology. This may be related in part to the limited capacity of the current health systems to select those people likely to have AD pathology in order to confirm the diagnosis with available cerebrospinal fluid and imaging biomarkers at memory clinics. In the current narrative review, we summarize the literature on candidate blood tests for AD that could be implemented in primary care settings and used for the effective identification of individuals at increased risk of AD pathology, who could be referred for potential inclusion in clinical trials or future approved treatments following additional testing. We give an updated account of blood-based candidate biomarkers and biomarker panels for AD-related brain changes. Our analysis centres on biomarker candidates that have been replicated in more than one study and discusses the need of further studies to achieve the goal of a primary care-based screening algorithm for AD.
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Affiliation(s)
- Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, he Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden. .,Clinical Neurochemistry Laboratory, Sahlgrenska, University Hospital, Mölndal, Sweden. .,Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, Queen Square, London, UK. .,UK Dementia Research Institute at UCL, London, UK.
| | - Samantha C Burnham
- CSIRO Health and Biosecurity, Parkville, Victoria, 3052, Australia. .,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, 6027, Australia.
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Goudey B, Fung BJ, Schieber C, Faux NG. A blood-based signature of cerebrospinal fluid Aβ 1-42 status. Sci Rep 2019; 9:4163. [PMID: 30853713 PMCID: PMC6409361 DOI: 10.1038/s41598-018-37149-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 12/03/2018] [Indexed: 12/22/2022] Open
Abstract
It is increasingly recognized that Alzheimer's disease (AD) exists before dementia is present and that shifts in amyloid beta occur long before clinical symptoms can be detected. Early detection of these molecular changes is a key aspect for the success of interventions aimed at slowing down rates of cognitive decline. Recent evidence indicates that of the two established methods for measuring amyloid, a decrease in cerebrospinal fluid (CSF) amyloid β1-42 (Aβ1-42) may be an earlier indicator of Alzheimer's disease risk than measures of amyloid obtained from Positron Emission Tomography (PET). However, CSF collection is highly invasive and expensive. In contrast, blood collection is routinely performed, minimally invasive and cheap. In this work, we develop a blood-based signature that can provide a cheap and minimally invasive estimation of an individual's CSF amyloid status using a machine learning approach. We show that a Random Forest model derived from plasma analytes can accurately predict subjects as having abnormal (low) CSF Aβ1-42 levels indicative of AD risk (0.84 AUC, 0.78 sensitivity, and 0.73 specificity). Refinement of the modeling indicates that only APOEε4 carrier status and four plasma analytes (CGA, Aβ1-42, Eotaxin 3, APOE) are required to achieve a high level of accuracy. Furthermore, we show across an independent validation cohort that individuals with predicted abnormal CSF Aβ1-42 levels transitioned to an AD diagnosis over 120 months significantly faster than those with predicted normal CSF Aβ1-42 levels and that the resulting model also validates reasonably across PET Aβ1-42 status (0.78 AUC). This is the first study to show that a machine learning approach, using plasma protein levels, age and APOEε4 carrier status, is able to predict CSF Aβ1-42 status, the earliest risk indicator for AD, with high accuracy.
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Affiliation(s)
- Benjamin Goudey
- IBM Research Australia, Carlton, Victoria, Australia
- Centre for Epidemiology and Biostatistics, The University of Melbourne, Parkville, Victoria, Australia
- Department of Computing and Information System, The University of Melbourne, Parkville, Victoria, Australia
| | - Bowen J Fung
- IBM Research Australia, Carlton, Victoria, Australia
- School of Psychological Sciences, University of Melbourne, Parkville, Victoria, Australia
| | | | - Noel G Faux
- IBM Research Australia, Carlton, Victoria, Australia.
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
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Herrera-Rivero M, Santarelli F, Brosseron F, Kummer MP, Heneka MT. Dysregulation of TLR5 and TAM Ligands in the Alzheimer’s Brain as Contributors to Disease Progression. Mol Neurobiol 2019; 56:6539-6550. [DOI: 10.1007/s12035-019-1540-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/25/2019] [Indexed: 01/09/2023]
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Ashton NJ, Nevado-Holgado AJ, Barber IS, Lynham S, Gupta V, Chatterjee P, Goozee K, Hone E, Pedrini S, Blennow K, Schöll M, Zetterberg H, Ellis KA, Bush AI, Rowe CC, Villemagne VL, Ames D, Masters CL, Aarsland D, Powell J, Lovestone S, Martins R, Hye A. A plasma protein classifier for predicting amyloid burden for preclinical Alzheimer's disease. SCIENCE ADVANCES 2019; 5:eaau7220. [PMID: 30775436 PMCID: PMC6365111 DOI: 10.1126/sciadv.aau7220] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 12/19/2018] [Indexed: 05/03/2023]
Abstract
A blood-based assessment of preclinical disease would have huge potential in the enrichment of participants for Alzheimer's disease (AD) therapeutic trials. In this study, cognitively unimpaired individuals from the AIBL and KARVIAH cohorts were defined as Aβ negative or Aβ positive by positron emission tomography. Nontargeted proteomic analysis that incorporated peptide fractionation and high-resolution mass spectrometry quantified relative protein abundances in plasma samples from all participants. A protein classifier model was trained to predict Aβ-positive participants using feature selection and machine learning in AIBL and independently assessed in KARVIAH. A 12-feature model for predicting Aβ-positive participants was established and demonstrated high accuracy (testing area under the receiver operator characteristic curve = 0.891, sensitivity = 0.78, and specificity = 0.77). This extensive plasma proteomic study has unbiasedly highlighted putative and novel candidates for AD pathology that should be further validated with automated methodologies.
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Affiliation(s)
- Nicholas J. Ashton
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Institute Clinical Neuroscience Institute, London, UK
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | | | | | - Steven Lynham
- Proteomics Core Facility, James Black Centre, King’s College, London, UK
| | - Veer Gupta
- School of Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
- Cooperative Research Centre for Mental Health, Carlton South, VIC, Australia
- School of Medicine, Faculty of Health, Deakin University, 3220 VIC, Australia
| | - Pratishtha Chatterjee
- School of Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
- KaRa Institute of Neurological Diseases, Macquarie Park, NSW, Australia
- Department of Biomedical Sciences, Macquarie University, 2109, NSW, Australia
| | - Kathryn Goozee
- KaRa Institute of Neurological Diseases, Macquarie Park, NSW, Australia
- Department of Biomedical Sciences, Macquarie University, 2109, NSW, Australia
- Clinical Research Department, Anglicare, Sydney, NSW, Australia
- School of Psychiatry and Clinical Neurosciences, University of Western Australia, WA, Australia
| | - Eugene Hone
- School of Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
- Cooperative Research Centre for Mental Health, Carlton South, VIC, Australia
| | - Steve Pedrini
- School of Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
- Cooperative Research Centre for Mental Health, Carlton South, VIC, Australia
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Michael Schöll
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, UK
- UK Dementia Research Institute at UCL, London, UK
| | - Kathryn A. Ellis
- Academic Unit for Psychiatry of Old Age, St. George’s Hospital, University of Melbourne, VIC, Australia
| | - Ashley I. Bush
- Cooperative Research Centre for Mental Health, Carlton South, VIC, Australia
- The Florey Institute, University of Melbourne, VIC, Australia
| | - Christopher C. Rowe
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia
| | - Victor L. Villemagne
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia
| | - David Ames
- Academic Unit for Psychiatry of Old Age, St. George’s Hospital, University of Melbourne, VIC, Australia
- National Ageing Research Institute, Parkville, VIC, Australia
| | | | - Dag Aarsland
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Institute Clinical Neuroscience Institute, London, UK
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
- Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
| | - John Powell
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Institute Clinical Neuroscience Institute, London, UK
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | | | - Ralph Martins
- School of Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
- Cooperative Research Centre for Mental Health, Carlton South, VIC, Australia
- KaRa Institute of Neurological Diseases, Macquarie Park, NSW, Australia
- Department of Biomedical Sciences, Macquarie University, 2109, NSW, Australia
| | - Abdul Hye
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Institute Clinical Neuroscience Institute, London, UK
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
- Corresponding author.
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Ojo JO, Crynen G, Reed JM, Ajoy R, Vallabhaneni P, Algamal M, Leary P, Rafi NG, Mouzon B, Mullan M, Crawford F. Unbiased Proteomic Approach Identifies Unique and Coincidental Plasma Biomarkers in Repetitive mTBI and AD Pathogenesis. Front Aging Neurosci 2018; 10:405. [PMID: 30618712 PMCID: PMC6305374 DOI: 10.3389/fnagi.2018.00405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/26/2018] [Indexed: 12/14/2022] Open
Abstract
The relationship between repetitive mild traumatic brain injury (r-mTBI) and Alzheimer's disease (AD) is well-recognized. However, the precise nature of how r-mTBI leads to or precipitates AD pathogenesis is currently not understood. Plasma biomarkers potentially provide non-invasive tools for detecting neurological changes in the brain, and can reveal overlaps between long-term consequences of r-mTBI and AD. In this study we address this by generating time-dependent molecular profiles of response to r-mTBI and AD pathogenesis in mouse models using unbiased proteomic analyses. To model AD, we used the well-validated hTau and PSAPP(APP/PS1) mouse models that develop age-related tau and amyloid pathological features, respectively, and our well-established model of r-mTBI in C57BL/6 mice. Plasma were collected at different ages (3, 9, and 15 months-old for hTau and PSAPP mice), encompassing pre-, peri- and post-"onset" of the cognitive and neuropathological phenotypes, or at different timepoints after r-mTBI (24 h, 3, 6, 9, and 12 months post-injury). Liquid chromatography/mass spectrometry (LC-MS) approaches coupled with Tandem Mass Tag labeling technology were applied to develop molecular profiles of protein species that were significantly differentially expressed as a consequence of mTBI or AD. Mixed model ANOVA after Benjamini-Hochberg correction, and a stringent cut-off identified 31 proteins significantly changing in r-mTBI groups over time and, when compared with changes over time in sham mice, 13 of these were unique to the injured mice. The canonical pathways predicted to be modulated by these changes were LXR/RXR activation, production of nitric oxide and reactive oxygen species and complement systems. We identified 18 proteins significantly changing in PSAPP mice and 19 proteins in hTau mice compared to their wild-type littermates with aging. Six proteins were found to be significantly regulated in all three models, i.e., r-mTBI, hTau, and PSAPP mice compared to their controls. The top canonical pathways coincidently changing in all three models were LXR/RXR activation, and production of nitric oxide and reactive oxygen species. This work suggests potential biomarkers for TBI and AD pathogenesis and for the overlap between these two, and warrant targeted investigation in human populations. Data are available via ProteomeXchange with identifier PXD010664.
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Affiliation(s)
- Joseph O. Ojo
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Gogce Crynen
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Jon M. Reed
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, United States
| | - Rosa Ajoy
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Prashanthi Vallabhaneni
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Moustafa Algamal
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Paige Leary
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Naomi G. Rafi
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
| | - Benoit Mouzon
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Michael Mullan
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Fiona Crawford
- Experimental Neuropathology and Proteomic Laboratory, Roskamp Institute, Sarasota, FL, United States
- James A. Haley Veterans’ Hospital, Tampa, FL, United States
- Life, Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom
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Westwood S, Baird AL, Hye A, Ashton NJ, Nevado-Holgado AJ, Anand SN, Liu B, Newby D, Bazenet C, Kiddle SJ, Ward M, Newton B, Desai K, Tan Hehir C, Zanette M, Galimberti D, Parnetti L, Lleó A, Baker S, Narayan VA, van der Flier WM, Scheltens P, Teunissen CE, Visser PJ, Lovestone S. Plasma Protein Biomarkers for the Prediction of CSF Amyloid and Tau and [ 18F]-Flutemetamol PET Scan Result. Front Aging Neurosci 2018; 10:409. [PMID: 30618716 PMCID: PMC6297196 DOI: 10.3389/fnagi.2018.00409] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 11/28/2018] [Indexed: 01/01/2023] Open
Abstract
Background: Blood biomarkers may aid in recruitment to clinical trials of Alzheimer's disease (AD) modifying therapeutics by triaging potential trials participants for amyloid positron emission tomography (PET) or cerebrospinal fluid (CSF) Aβ and tau tests. Objective: To discover a plasma proteomic signature associated with CSF and PET measures of AD pathology. Methods: Liquid chromatography-tandem mass spectrometry (LC-MS/MS) based proteomics were performed in plasma from participants with subjective cognitive decline (SCD), mild cognitive impairment (MCI), and AD, recruited to the Amsterdam Dementia Cohort, stratified by CSF Tau/Aβ42 (n = 50). Technical replication and independent validation were performed by immunoassay in plasma from SCD, MCI, and AD participants recruited to the Amsterdam Dementia Cohort with CSF measures (n = 100), MCI participants enrolled in the GE067-005 study with [18F]-Flutemetamol PET amyloid measures (n = 173), and AD, MCI and cognitively healthy participants from the EMIF 500 study with CSF Aβ42 measurements (n = 494). Results: 25 discovery proteins were nominally associated with CSF Tau/Aβ42 (P < 0.05) with associations of ficolin-2 (FCN2), apolipoprotein C-IV and fibrinogen β chain confirmed by immunoassay (P < 0.05). In the GE067-005 cohort, FCN2 was nominally associated with PET amyloid (P < 0.05) replicating the association with CSF Tau/Aβ42. There were nominally significant associations of complement component 3 with PET amyloid, and apolipoprotein(a), apolipoprotein A-I, ceruloplasmin, and PPY with MCI conversion to AD (all P < 0.05). In the EMIF 500 cohort FCN2 was trending toward a significant relationship with CSF Aβ42 (P ≈ 0.05), while both A1AT and clusterin were nominally significantly associated with CSF Aβ42 (both P < 0.05). Conclusion: Associations of plasma proteins with multiple measures of AD pathology and progression are demonstrated. To our knowledge this is the first study to report an association of FCN2 with AD pathology. Further testing of the proteins in larger independent cohorts will be important.
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Affiliation(s)
- Sarah Westwood
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Alison L. Baird
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Abdul Hye
- Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kigndom
- Biomedical Research Unit for Dementia, NIHR Biomedical Research Centre for Mental Health, South London and Maudsley NHS Foundation Trust, London, United Kingdom
| | - Nicholas J. Ashton
- Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kigndom
- Biomedical Research Unit for Dementia, NIHR Biomedical Research Centre for Mental Health, South London and Maudsley NHS Foundation Trust, London, United Kingdom
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden
| | | | - Sneha N. Anand
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Benjamine Liu
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Danielle Newby
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Chantal Bazenet
- Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kigndom
| | - Steven J. Kiddle
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, United Kingdom
- MRC Biostatistics Unit, Cambridge Biomedical Campus, Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom
| | - Malcolm Ward
- Proteomics Facility, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, United Kingdom
| | - Ben Newton
- GE Healthcare Life Sciences Core Imaging, London, United Kingdom
| | - Keyur Desai
- Biosciences, GE Global Research, Niskayuna, NY, United States
| | | | - Michelle Zanette
- GE Healthcare Life Sciences Core Imaging, Marlborough, MA, United States
| | - Daniela Galimberti
- Neurodegenerative Diseases Unit, Centro Dino Ferrari, University of Milan, Milan, Italy
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Lucilla Parnetti
- Center for Memory Disorders and Laboratory of Clinical Neurochemistry, Neurology Clinic, University of Perugia, Perugia, Italy
| | - Alberto Lleó
- Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Susan Baker
- Janssen Neuroscience Research & Development, Titusville, NJ, United States
| | - Vaibhav A. Narayan
- Janssen Neuroscience Research & Development, Titusville, NJ, United States
| | - Wiesje M. van der Flier
- Department of Neurology, Alzheimer Centre, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, Netherlands
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, Netherlands
| | - Philip Scheltens
- Department of Neurology, Alzheimer Centre, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, Netherlands
| | - Charlotte E. Teunissen
- Department of Clinical Chemistry, Neurochemistry Lab and Biobank, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, Netherlands
| | - Pieter Jelle Visser
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Simon Lovestone
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
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Palmqvist S, Insel PS, Zetterberg H, Blennow K, Brix B, Stomrud E, Mattsson N, Hansson O. Accurate risk estimation of β-amyloid positivity to identify prodromal Alzheimer's disease: Cross-validation study of practical algorithms. Alzheimers Dement 2018; 15:194-204. [PMID: 30365928 PMCID: PMC6374284 DOI: 10.1016/j.jalz.2018.08.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/14/2018] [Accepted: 08/21/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The aim was to create readily available algorithms that estimate the individual risk of β-amyloid (Aβ) positivity. METHODS The algorithms were tested in BioFINDER (n = 391, subjective cognitive decline or mild cognitive impairment) and validated in Alzheimer's Disease Neuroimaging Initiative (n = 661, subjective cognitive decline or mild cognitive impairment). The examined predictors of Aβ status were demographics; cognitive tests; white matter lesions; apolipoprotein E (APOE); and plasma Aβ42/Aβ40, tau, and neurofilament light. RESULTS Aβ status was accurately estimated in BioFINDER using age, 10-word delayed recall or Mini-Mental State Examination, and APOE (area under the receiver operating characteristics curve = 0.81 [0.77-0.85] to 0.83 [0.79-0.87]). When validated, the models performed almost identical in Alzheimer's Disease Neuroimaging Initiative (area under the receiver operating characteristics curve = 0.80-0.82) and within different age, subjective cognitive decline, and mild cognitive impairment populations. Plasma Aβ42/Aβ40 improved the models slightly. DISCUSSION The algorithms are implemented on http://amyloidrisk.com where the individual probability of being Aβ positive can be calculated. This is useful in the workup of prodromal Alzheimer's disease and can reduce the number needed to screen in Alzheimer's disease trials.
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Affiliation(s)
- Sebastian Palmqvist
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden; Department of Neurology, Skåne University Hospital, Lund, Sweden.
| | - Philip S Insel
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, United Kingdom; UK Dementia Research Institute at UCL, London, United Kingdom
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | | | - Erik Stomrud
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden; Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | | | | | - Niklas Mattsson
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden; Department of Neurology, Skåne University Hospital, Lund, Sweden
| | - Oskar Hansson
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden; Memory Clinic, Skåne University Hospital, Malmö, Sweden.
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35
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Li D, Huang F, Zhao Y, Villata PW, Griffin TJ, Zhang L, Li L, Yu F. Plasma lipoproteome in Alzheimer's disease: a proof-of-concept study. Clin Proteomics 2018; 15:31. [PMID: 30250409 PMCID: PMC6147047 DOI: 10.1186/s12014-018-9207-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 09/15/2018] [Indexed: 12/11/2022] Open
Abstract
Background Although total plasma lipoproteome consists of proteins that have shown promises as biomarkers that can identify Alzheimer's disease (AD), effect sizes are modest. The objective of this study is to provide initial proof-of-concept that the plasma lipoproteome more likely differ between AD cases and controls when measured in individual plasma lipoprotein fractions than when measured as total in immunodepleted plasma. Methods We first developed a targeted proteomics method based on selected reaction monitoring (SRM) and liquid chromatography and tandem mass spectrometry for measurement of 120 tryptic peptides from 79 proteins that are commonly present in plasma lipoproteins. Then in a proof-of concept case-control study of 5 AD cases and 5 sex- and age-matched controls, we applied the targeted proteomic method and performed relatively quantification of 120 tryptic peptides in plasma lipoprotein fractions (fractionated by sequential gradient ultracentrifugation) and in immunodepleted plasma (of albumin and IgG). Unadjusted p values from two-sample t-tests and overall fold change was used to evaluate a peptide relative difference between AD cases and controls, with lower p values (< 0.05) or greater fold differences (> 1.05 or < 0.95) suggestive of greater peptide/protein differences. Results Within-day and between-days technical precisions (mean %CV [SD] of all SRM transitions) of the targeted proteomic method were 3.95% (2.65) and 9.31% (5.59), respectively. Between-days technical precisions (mean % CV [SD]) of the entire plasma lipoproteomic workflow including plasma lipoprotein fractionation was 27.90% (14.61). Ten tryptic peptides that belonged to 5 proteins in plasma lipoproteins had unadjusted p values < 0.05, compared to no peptides in immunodepleted plasma. Furthermore, 27, 32, 17, and 20 tryptic peptides in VLDL, IDL, LDL and HDL, demonstrated overall peptide fold differences > 1.05 or < 0.95, compared to only 6 tryptic peptides in immunodepleted plasma. The overall comparisons, therefore, suggested greater peptide/protein differences in plasma lipoproteome when measured in individual plasma lipoproteins than as total in immunodepleted plasma. Specifically, protein complement C3's peptide IHWESASLLR, had unadjusted p values of 0.00007, 0.00012, and 0.0006 and overall 1.25, 1.17, 1.14-fold changes in VLDL, IDL, and LDL, respectively. After positive False Discovery Rate (pFDR) adjustment, the complement C3 peptide IHWESASLLR in VLDL remained statistically different (adjusted p value < 0.05). Discussion The findings may warrant future studies to investigate plasma lipoproteome when measured in individual plasma lipoprotein fractions for AD diagnosis.
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Affiliation(s)
- Danni Li
- 1Department of Laboratory Medicine and Pathology, University of Minnesota, 420 Delaware Street SE, MMC 609, Minneapolis, MN 55455 USA
| | - Fangying Huang
- 1Department of Laboratory Medicine and Pathology, University of Minnesota, 420 Delaware Street SE, MMC 609, Minneapolis, MN 55455 USA
| | - Yingchun Zhao
- 2Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455 USA
| | - Peter W Villata
- 2Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455 USA
| | - Timothy J Griffin
- 3Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455 USA
| | - Lin Zhang
- 4Department of Biostatistics, University of Minnesota, Minneapolis, MN 55455 USA
| | - Ling Li
- 5Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, MN 55455 USA
| | - Fang Yu
- 6School of Nursing, University of Minnesota, Minneapolis, MN 55455 USA
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Carlyle BC, Trombetta BA, Arnold SE. Proteomic Approaches for the Discovery of Biofluid Biomarkers of Neurodegenerative Dementias. Proteomes 2018; 6:32. [PMID: 30200280 PMCID: PMC6161166 DOI: 10.3390/proteomes6030032] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022] Open
Abstract
Neurodegenerative dementias are highly complex disorders driven by vicious cycles of intersecting pathophysiologies. While most can be definitively diagnosed by the presence of disease-specific pathology in the brain at postmortem examination, clinical disease presentations often involve substantially overlapping cognitive, behavioral, and functional impairment profiles that hamper accurate diagnosis of the specific disease. As global demographics shift towards an aging population in developed countries, clinicians need more sensitive and specific diagnostic tools to appropriately diagnose, monitor, and treat neurodegenerative conditions. This review is intended as an overview of how modern proteomic techniques (liquid chromatography mass spectrometry (LC-MS/MS) and advanced capture-based technologies) may contribute to the discovery and establishment of better biofluid biomarkers for neurodegenerative disease, and the limitations of these techniques. The review highlights some of the more interesting technical innovations and common themes in the field but is not intended to be an exhaustive systematic review of studies to date. Finally, we discuss clear reporting principles that should be integrated into all studies going forward to ensure data is presented in sufficient detail to allow meaningful comparisons across studies.
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Affiliation(s)
- Becky C Carlyle
- Massachusetts General Hospital Department of Neurology, Charlestown, MA 02129, USA.
| | - Bianca A Trombetta
- Massachusetts General Hospital Department of Neurology, Charlestown, MA 02129, USA.
| | - Steven E Arnold
- Massachusetts General Hospital Department of Neurology, Charlestown, MA 02129, USA.
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Goozee K, Chatterjee P, James I, Shen K, Sohrabi HR, Asih PR, Dave P, ManYan C, Taddei K, Ayton SJ, Garg ML, Kwok JB, Bush AI, Chung R, Magnussen JS, Martins RN. Elevated plasma ferritin in elderly individuals with high neocortical amyloid-β load. Mol Psychiatry 2018; 23:1807-1812. [PMID: 28696433 DOI: 10.1038/mp.2017.146] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/14/2017] [Accepted: 05/26/2017] [Indexed: 12/14/2022]
Abstract
Ferritin, an iron storage and regulation protein, has been associated with Alzheimer's disease (AD); however, it has not been investigated in preclinical AD, detected by neocortical amyloid-β load (NAL), before cognitive impairment. Cross-sectional analyses were carried out for plasma and serum ferritin in participants in the Kerr Anglican Retirement Village Initiative in Aging Health cohort. Subjects were aged 65-90 years and were categorized into high and low NAL groups via positron emission tomography using a standard uptake value ratio cutoff=1.35. Ferritin was significantly elevated in participants with high NAL compared with those with low NAL, adjusted for covariates age, sex, apolipoprotein E ɛ4 carriage and levels of C-reactive protein (an inflammation marker). Ferritin was also observed to correlate positively with NAL. A receiver operating characteristic curve based on a logistic regression of the same covariates, the base model, distinguished high from low NAL (area under the curve (AUC)=0.766), but was outperformed when plasma ferritin was added to the base model (AUC=0.810), such that at 75% sensitivity, the specificity increased from 62 to 71% on adding ferritin to the base model, indicating that ferritin is a statistically significant additional predictor of NAL over and above the base model. However, ferritin's contribution alone is relatively minor compared with the base model. The current findings suggest that impaired iron mobilization is an early event in AD pathogenesis. Observations from the present study highlight ferritin's potential to contribute to a blood biomarker panel for preclinical AD.
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Affiliation(s)
- K Goozee
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia.,Anglicare, Sydney, NSW, Australia.,School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, WA, Australia.,School of Medical Health and Sciences, Edith Cowan University, Perth, WA, Australia.,McCusker Alzheimer Research Foundation, Perth, WA, Australia.,KaRa Institute of Neurological Disease, Sydney, NSW, Australia.,The Cooperative Research Centre for Mental Health, Carlton, VIC, Australia
| | - P Chatterjee
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia.,School of Medical Health and Sciences, Edith Cowan University, Perth, WA, Australia.,KaRa Institute of Neurological Disease, Sydney, NSW, Australia
| | - I James
- Institute for Immunology and Infectious Diseases, Murdoch University, Perth, WA, Australia
| | - K Shen
- Australian eHealth Research Centre, CSIRO, Floreat, WA, Australia
| | - H R Sohrabi
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia.,School of Medical Health and Sciences, Edith Cowan University, Perth, WA, Australia.,McCusker Alzheimer Research Foundation, Perth, WA, Australia.,The Cooperative Research Centre for Mental Health, Carlton, VIC, Australia
| | - P R Asih
- KaRa Institute of Neurological Disease, Sydney, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - P Dave
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia.,Anglicare, Sydney, NSW, Australia
| | - C ManYan
- Anglicare, Sydney, NSW, Australia
| | - K Taddei
- School of Medical Health and Sciences, Edith Cowan University, Perth, WA, Australia.,McCusker Alzheimer Research Foundation, Perth, WA, Australia
| | - S J Ayton
- Florey Department of Neuroscience and Mental Health, University of Melbourne University, Melbourne, VIC, Australia
| | - M L Garg
- Nutraceuticals Research Program, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - J B Kwok
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia.,Neuroscience Research Australia, Sydney, NSW, Australia
| | - A I Bush
- The Cooperative Research Centre for Mental Health, Carlton, VIC, Australia.,Florey Department of Neuroscience and Mental Health, University of Melbourne University, Melbourne, VIC, Australia
| | - R Chung
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia
| | - J S Magnussen
- Department of Clinical Medicine, Macquarie University, Sydney, NSW, Australia
| | - R N Martins
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia. .,School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, WA, Australia. .,School of Medical Health and Sciences, Edith Cowan University, Perth, WA, Australia. .,McCusker Alzheimer Research Foundation, Perth, WA, Australia. .,KaRa Institute of Neurological Disease, Sydney, NSW, Australia. .,The Cooperative Research Centre for Mental Health, Carlton, VIC, Australia.
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Chronically raised C-reactive protein is inversely associated with cortical β-amyloid in older adults with subjective memory complaints. Exp Gerontol 2018; 108:226-230. [PMID: 29704641 DOI: 10.1016/j.exger.2018.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/15/2018] [Accepted: 04/18/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND Inflammation promotes amyloidogenesis in animals and markers of inflammation are associated with β-amyloid (Aβ) in humans. Hence, we sought to examine the cross-sectional associations between chronically elevated plasma C reactive protein (CRP) and cortical Aβ in 259 non-demented elderly individuals reporting subjective memory complaints from the Multidomain Alzheimer Preventive Trial (MAPT). METHODS Cortical-to-cerebellar standard uptake value ratios were obtained using [18F] florbetapir positron emission tomography (PET). CRP was measured in plasma using immunoturbidity. Chronically raised CRP was defined as having 2 consecutively high CRP readings (>3 mg/l ≤ 10 mg/l) between study baseline and the 1 year visit (visits were performed at baseline, 6 months, 1 year and then annually). Associations were explored using adjusted multiple linear regression. RESULTS Chronically raised CRP was found to be inversely associated with cortical Aβ (B-coefficient: -0.054, SE: 0.026, p = 0.040) and this association seemed to be specific to apolipoprotein E (Apo E) ε4 carriers (B-coefficient: -0.130, SE: 0.058, p = 0.027). CRP as an isolated reading measured closest to PET scan was also inversely associated with cortical Aβ when CRP was treated as a dichotomized variable (high CRP > 3 mg/l ≤ 10 mg/l, B-coefficient: -0.048, SE: 0.023, p = 0.043). CONCLUSIONS Our preliminary findings suggest that inflammation might be beneficial in the early stages of Alzheimer's disease as the immune systems attempts to combat Aβ pathology particularly in ApoE ε4 carriers. Investigating the temporal relationships between cerebral Aβ and a panel of inflammatory markers would provide further evidence as to whether chronic inflammation might modulate amyloidogenesis in vivo.
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Shen L, Liao L, Chen C, Guo Y, Song D, Wang Y, Chen Y, Zhang K, Ying M, Li S, Liu Q, Ni J. Proteomics Analysis of Blood Serums from Alzheimer's Disease Patients Using iTRAQ Labeling Technology. J Alzheimers Dis 2018; 56:361-378. [PMID: 27911324 DOI: 10.3233/jad-160913] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer' disease (AD) is the most common form of dementia affecting up to 6% of the population over the age of 65. In order to discover differentially expressed proteins that might serve as potential biomarkers, the serums from AD patients and healthy controls were compared and analyzed using the proteomics approach of isobaric tagging for relative and absolute quantitation (iTRAQ). For the first time, AD biomarkers in serums are investigated in the Han Chinese population using iTRAQ labeled proteomics strategy. Twenty-two differentially expressed proteins were identified and out of which nine proteins were further validated with more sample test. Another three proteins that have been reported in the literature to be potentially associated with AD were also investigated for alteration in expression level. Functions of those proteins were mainly related to the following processes: amyloid-β (Aβ) metabolism, cholesterol transport, complement and coagulation cascades, immune response, inflammation, hemostasis, hyaluronan metabolism, and oxidative stress. These results support current views on the molecular mechanism of AD. For the first time, differential expression of zinc-alpha-2-glycoprotein (AZGP1), fibulin-1 (FBLN1), platelet basic protein (PPBP), thrombospondin-1 (THBS1), S100 calcium-binding protein A8 (S100A8), and S100 calcium-binding protein A9 (S100A9) were detected in the serums of AD patients compared with healthy controls. These proteins might play a role in AD pathophysiology and serve as potential biomarkers for AD diagnosis. Specifically, our results strengthened the crucial role of Aβ metabolism and blood coagulation in AD pathogenesis and proteins related to these two processes may be used as peripheral blood biomarkers for AD.
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Affiliation(s)
- Liming Shen
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Liping Liao
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Cheng Chen
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Yi Guo
- Department of Neurology, Shenzhen People's Hospital, P.R. China
| | - Dalin Song
- Department of Geriatrics, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Yong Wang
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Youjiao Chen
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Kaoyuan Zhang
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Ming Ying
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Shuiming Li
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, P.R. China
| | - Qiong Liu
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
| | - Jiazuan Ni
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, P.R. China
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Shi L, Baird AL, Westwood S, Hye A, Dobson R, Thambisetty M, Lovestone S. A Decade of Blood Biomarkers for Alzheimer's Disease Research: An Evolving Field, Improving Study Designs, and the Challenge of Replication. J Alzheimers Dis 2018; 62:1181-1198. [PMID: 29562526 PMCID: PMC5870012 DOI: 10.3233/jad-170531] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Blood-based biomarkers represent a less invasive and potentially cheaper approach for aiding Alzheimer's disease (AD) detection compared with cerebrospinal fluid and some neuroimaging biomarkers. Acknowledging that many in the field have made great progress, here we review some of the work that our group has pursued to identify and validate blood-based proteomic biomarkers through both case control and AD pathology endophenotype-based approaches. Our focus is primarily to identify a minimally invasive and hopefully cost-effective blood-based biomarker to reduce screen failure in clinical trials where participants have prodromal or even pre-clinical disease. We summarize some of the key findings and approaches taken in these biomarker studies, while addressing the main challenges, including that of limited replication in the field, and discuss opportunities for biomarker development.
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Affiliation(s)
- Liu Shi
- Department of Psychiatry, University of Oxford, Oxford, UK
| | | | - Sarah Westwood
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Abdul Hye
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Richard Dobson
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Madhav Thambisetty
- Unit of Clinical and Translational Neuroscience, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD, USA
| | - Simon Lovestone
- Department of Psychiatry, University of Oxford, Oxford, UK
- Correspondence to: Simon Lovestone, Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford OX3 7JX, UK. Tel.: +44 01865 223910; Fax: +44 01865 793101; E-mail:
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Kiddle SJ, Voyle N, Dobson RJB. A Blood Test for Alzheimer's Disease: Progress, Challenges, and Recommendations. J Alzheimers Dis 2018; 64:S289-S297. [PMID: 29614671 PMCID: PMC6010156 DOI: 10.3233/jad-179904] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Ever since the discovery of APOEɛ4 around 25 years ago, researchers have been excited about the potential of a blood test for Alzheimer's disease (AD). Since then researchers have looked for genetic, protein, metabolite, and/or gene expression markers of AD and related phenotypes. However, no blood test for AD is yet being used in the clinical setting. We first review the trends and challenges in AD blood biomarker research, before giving our personal recommendations to help researchers overcome these challenges. While some degree of consistency and replication has been seen across independent studies, several high-profile studies have seemingly failed to replicate. Partly due to academic incentives, there is a reluctance in the field to report predictive ability, to publish negative findings, and to independently replicate the work of others. If this can be addressed, then we will know sooner whether a blood test for AD or related phenotypes with clinical utility can be developed.
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Affiliation(s)
- Steven J. Kiddle
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK, SE5 8AF
- MRC Biostatistics Unit, Cambridge Biomedical Campus, Cambridge Institute of Public Health, Forvie Site, Robinson Way, Cambridge CB2 0SR, UK
| | - Nicola Voyle
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK, SE5 8AF
| | - Richard JB Dobson
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK, SE5 8AF
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK, SE5 8AF
- Farr Institute of Health Informatics Research, UCL Institute of Health Informatics, University College London, London WC1E 6BT, UK
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Westwood S, Leoni E, Hye A, Lynham S, Khondoker MR, Ashton NJ, Kiddle SJ, Baird AL, Sainz-Fuertes R, Leung R, Graf J, Hehir CT, Baker D, Cereda C, Bazenet C, Ward M, Thambisetty M, Lovestone S. Blood-Based Biomarker Candidates of Cerebral Amyloid Using PiB PET in Non-Demented Elderly. J Alzheimers Dis 2017; 52:561-72. [PMID: 27031486 DOI: 10.3233/jad-151155] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Increasingly, clinical trials for Alzheimer's disease (AD) are being conducted earlier in the disease phase and with biomarker confirmation using in vivo amyloid PET imaging or CSF tau and Aβ measures to quantify pathology. However, making such a pre-clinical AD diagnosis is relatively costly and the screening failure rate is likely to be high. Having a blood-based marker that would reduce such costs and accelerate clinical trials through identifying potential participants with likely pre-clinical AD would be a substantial advance. In order to seek such a candidate biomarker, discovery phase proteomic analyses using 2DGE and gel-free LC-MS/MS for high and low molecular weight analytes were conducted on longitudinal plasma samples collected over a 12-year period from non-demented older individuals who exhibited a range of 11C-PiB PET measures of amyloid load. We then sought to extend our discovery findings by investigating whether our candidate biomarkers were also associated with brain amyloid burden in disease, in an independent cohort. Seven plasma proteins, including A2M, Apo-A1, and multiple complement proteins, were identified as pre-clinical biomarkers of amyloid burden and were consistent across three time points (p < 0.05). Five of these proteins also correlated with brain amyloid measures at different stages of the disease (q < 0.1). Here we show that it is possible to detect a plasma based biomarker signature indicative of AD pathology at a stage long before the onset of clinical disease manifestation. As in previous studies, acute phase reactants and inflammatory markers dominate this signature.
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Affiliation(s)
- Sarah Westwood
- Department of Psychiatry, University of Oxford, Oxford, UK.,King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Emanuela Leoni
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK.,Department of Brain and Behavioural Science, University of Pavia, Pavia, Italy.,Laboratory of Experimental Neurobiology, "C. Mondino" National Institute of Neurology Foundation, Pavia, Italy
| | - Abdul Hye
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Steven Lynham
- Proteomics Core Facility, Centre of Excellence for Mass Spectrometry, Institute of Psychiatry, Kings College London, London, UK
| | - Mizanur R Khondoker
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK.,Department of Applied Health Research, University College London, London, UK
| | - Nicholas J Ashton
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Steven J Kiddle
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Alison L Baird
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Ricardo Sainz-Fuertes
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK.,Partnerships in Care, North London Clinic, London, UK
| | - Rufina Leung
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - John Graf
- Diagnostics, Imaging and Biomedical Technologies, GE Global Research, Niskayuna, NY, USA
| | - Cristina Tan Hehir
- Diagnostics, Imaging and Biomedical Technologies, GE Global Research, Niskayuna, NY, USA
| | - David Baker
- Janssen R&D, Neurosciences, Titusville, NJ, USA
| | - Cristina Cereda
- Laboratory of Experimental Neurobiology, "C. Mondino" National Institute of Neurology Foundation, Pavia, Italy
| | - Chantal Bazenet
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, and NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS Foundation, London, UK
| | - Malcolm Ward
- Proteomics Core Facility, Centre of Excellence for Mass Spectrometry, Institute of Psychiatry, Kings College London, London, UK
| | - Madhav Thambisetty
- Unit of Clinical and Translational Neuroscience, Laboratory of Behavioral Neuroscience, National Institute on Ageing, Baltimore, MD, USA
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Jammeh E, Zhao P, Carroll C, Pearson S, Ifeachor E. Identification of blood biomarkers for use in point of care diagnosis tool for Alzheimer's disease. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2016:2415-2418. [PMID: 28268812 DOI: 10.1109/embc.2016.7591217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Early diagnosis of Alzheimer's Disease (AD) is widely regarded as necessary to allow treatment to be started before irreversible damage to the brain occur and for patients to benefit from new therapies as they become available. Low-cost point-of-care (PoC) diagnostic tools that can be used to routinely diagnose AD in its early stage would facilitate this, but such tools require reliable and accurate biomarkers. However, traditional biomarkers for AD use invasive cerebrospinal fluid (CSF) analysis and/or expensive neuroimaging techniques together with neuropsychological assessments. Blood-based PoC diagnostics tools may provide a more cost and time efficient way to assess AD to complement CSF and neuroimaging techniques. However, evidence to date suggests that only a panel of biomarkers would provide the diagnostic accuracy needed in clinical practice and that the number of biomarkers in such panels can be large. In addition, the biomarkers in a panel vary from study to study. These issues make it difficult to realise a PoC device for diagnosis of AD. An objective of this paper is to find an optimum number of blood biomarkers (in terms of number of biomarkers and sensitivity/specificity) that can be used in a handheld PoC device for AD diagnosis. We used the Alzheimer's disease Neuroimaging Initiative (ADNI) database to identify a small number of blood biomarkers for AD. We identified a 6-biomarker panel (which includes A1Micro, A2Macro, AAT, ApoE, complement C3 and PPP), which when used with age as covariate, was able to discriminate between AD patients and normal subjects with a sensitivity of 85.4% and specificity of 78.6%.
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44
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Schelke MW, Hackett K, Chen JL, Shih C, Shum J, Montgomery ME, Chiang GC, Berkowitz C, Seifan A, Krikorian R, Isaacson RS. Nutritional interventions for Alzheimer's prevention: a clinical precision medicine approach. Ann N Y Acad Sci 2017; 1367:50-6. [PMID: 27116241 DOI: 10.1111/nyas.13070] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/11/2016] [Accepted: 03/22/2016] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is a major source of morbidity and mortality, with the disease burden expected to rise as the population ages. No disease-modifying agent is currently available, but recent research suggests that nutritional and lifestyle modifications can delay or prevent the onset of AD. However, preventive nutritional interventions are not universally applicable and depend on the clinical profile of the individual patient. This article reviews existing nutritional modalities for AD prevention that act through improvement of insulin resistance, correction of dyslipidemia, and reduction of oxidative stress, and discusses how they may be modified on the basis of individual biomarkers, genetics, and behavior. In addition, we report preliminary results of clinical application of these personalized interventions at the first AD prevention clinic in the United States. The use of these personalized interventions represents an important application of precision medicine techniques for the prevention of AD that can be adopted by clinicians across disciplines.
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Affiliation(s)
| | | | - Jaclyn L Chen
- Department of Neurology, Weill Cornell Medicine, New York, New York
| | - Chiashin Shih
- Department of Neurology, Weill Cornell Medicine, New York, New York
| | - Jessica Shum
- Department of Neurology, Weill Cornell Medicine, New York, New York
| | - Mary E Montgomery
- Nutrition, NewYork-Presbyterian/Weill Cornell Medical Center, New York, New York
| | - Gloria C Chiang
- Department of Neurology, Weill Cornell Medicine, New York, New York
| | - Cara Berkowitz
- Department of Neurology, Weill Cornell Medicine, New York, New York
| | - Alon Seifan
- Neurology, Compass Health Systems, Miami, Florida
| | - Robert Krikorian
- Department of Psychiatry, University of Cincinnati Academic Health Center, Cincinnati, Ohio
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Notarianni E. Cortisol: Mediator of association between Alzheimer's disease and diabetes mellitus? Psychoneuroendocrinology 2017; 81:129-137. [PMID: 28458232 DOI: 10.1016/j.psyneuen.2017.04.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/17/2017] [Accepted: 04/17/2017] [Indexed: 01/21/2023]
Abstract
Numerous epidemiologic studies have identified an independent association between Alzheimer's disease (AD) and diabetes mellitus (DM), which remains unexplained. This review contends that the association is mediated by mild hypercortisolemia that is manifested in AD by early stages, as empirical evidence indicates that hypercortisolemia is diabetogenic even at subclinical levels. Subclinical Cushing's syndrome is discussed as the paradigm. It is proposed that hypercortisolemia increases the risk of pre-diabetes and DM during early AD and the preceding decades. That hypercortisolemia is exhibited during the AD prodromal stage has yet to be determined, but may be inferred from concurrent metabolic parameters as documented in the literature. Studies refuting association between AD and DM also are evaluated, and the relationship between AD and DM is deduced to be more complex than directly causal, with DM of longstanding duration having a protective role. Association between DM and AD may require reappraisal by APOE ε4 carrier status, in view of newly identified roles of APOE ε4 in pre-diabetes. That association of APOE ε4 with DM in AD may have been underestimated in epidemiologic studies also is highlighted. At the core of arguments and mechanisms presented in this review is the circadian rhythm of cortisol secretion, which is the main determinant of glycemic control in humans. Alterations to that rhythm and to the hypothalamic-pituitary-adrenal axis occurring in AD are examined. Consequently the cause of hypercortisolemia in AD, and therefore of association between AD and DM, is proposed to be adrenal hyper-responsiveness to adrenocorticotropic hormone.
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Affiliation(s)
- Elena Notarianni
- St Hilda's College, University of Oxford, Cowley Place, Oxford OX4 1DY, UK; Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK.
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Wyss-Coray T. Ageing, neurodegeneration and brain rejuvenation. Nature 2016; 539:180-186. [PMID: 27830812 DOI: 10.1038/nature20411] [Citation(s) in RCA: 642] [Impact Index Per Article: 80.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 09/02/2016] [Indexed: 02/08/2023]
Abstract
Although systemic diseases take the biggest toll on human health and well-being, increasingly, a failing brain is the arbiter of a death preceded by a gradual loss of the essence of being. Ageing, which is fundamental to neurodegeneration and dementia, affects every organ in the body and seems to be encoded partly in a blood-based signature. Indeed, factors in the circulation have been shown to modulate ageing and to rejuvenate numerous organs, including the brain. The discovery of such factors, the identification of their origins and a deeper understanding of their functions is ushering in a new era in ageing and dementia research.
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Affiliation(s)
- Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Palo Alto, California 94304, USA.,Center for Tissue Regeneration, Repair and Restoration, VA Palo Alto Health Care System, Palo Alto, California 94304, USA
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Burnham SC, Rowe CC, Baker D, Bush AI, Doecke JD, Faux NG, Laws SM, Martins RN, Maruff P, Macaulay SL, Rainey-Smith S, Savage G, Ames D, Masters CL, Wilson W, Villemagne VL. Predicting Alzheimer disease from a blood-based biomarker profile: A 54-month follow-up. Neurology 2016; 87:1093-101. [PMID: 27534714 DOI: 10.1212/wnl.0000000000003094] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 06/01/2016] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE We assessed a blood-based signature, which previously demonstrated high accuracy at stratifying individuals with high or low neocortical β-amyloid burden (NAB), to determine whether it could also identify individuals at risk of progression to Alzheimer disease (AD) within 54 months. METHODS We generated the blood-based signature for 585 healthy controls (HCs) and 74 participants with mild cognitive impairment (MCI) from the Australian Imaging, Biomarkers and Lifestyle Study who underwent clinical reclassification (blinded to biomarker findings) at 54-month follow-up. The individuals were split into estimated high and low NAB groups based on a cutoff of 1.5 standardized uptake value ratio. We assessed the predictive accuracy of the high and low NAB groupings based on progression to mild cognitive impairment or AD according to clinical reclassification at 54-month follow-up. RESULTS Twelve percent of HCs with estimated high NAB progressed in comparison to 5% of HCs with estimated low NAB (odds ratio = 2.4). Forty percent of the participants with MCI who had estimated high NAB progressed in comparison to 5% of the participants with MCI who had estimated low NAB (odds ratio = 12.3). These ratios are in line with those reported for Pittsburgh compound B-PET results. Individuals with estimated high NAB had faster rates of memory decline than those with estimated low NAB. CONCLUSION These findings suggest that a simple blood-based signature not only provides estimates of NAB but also predicts cognitive decline and disease progression, identifying individuals at risk of progressing toward AD at the prodromal and preclinical stages.
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Affiliation(s)
- Samantha C Burnham
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
| | - Christopher C Rowe
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - David Baker
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Ashley I Bush
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - James D Doecke
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Noel G Faux
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Simon M Laws
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Ralph N Martins
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Paul Maruff
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - S Lance Macaulay
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Stephanie Rainey-Smith
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Greg Savage
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - David Ames
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Colin L Masters
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - William Wilson
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
| | - Victor L Villemagne
- From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia
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Khan AT, Dobson RJB, Sattlecker M, Kiddle SJ. Alzheimer's disease: are blood and brain markers related? A systematic review. Ann Clin Transl Neurol 2016; 3:455-62. [PMID: 27547773 PMCID: PMC4891999 DOI: 10.1002/acn3.313] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/29/2016] [Accepted: 04/07/2016] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE Peripheral protein biomarkers of Alzheimer's disease (AD) may help identify novel treatment avenues by allowing early diagnosis, recruitment to clinical trials, and treatment initiation. The purpose of this review was to determine which proteins have been found to be differentially expressed in the AD brain and whether these proteins are also found within the blood of AD patients. METHODS A two-stage approach was conducted. The first stage involved conducting a systematic search to identify discovery-based brain proteomic studies of AD. The second stage involved comparing whether proteins found to be differentially expressed in AD brain were also differentially expressed in the blood. RESULTS Across 11 discovery based brain proteomic studies 371 proteins were at different levels in the AD brain. Nine proteins were frequently found, defined as appearing in at least three separate studies. Of these proteins heat-shock cognate 71 kDa, ubiquitin carboxyl-terminal hydrolase isozyme L1, and 2',3'-cyclic nucleotide 3' phosphodiesterase alone were found to share a consistent direction of change, being consistently upregulated in studies they appeared in. Eighteen proteins seen as being differentially expressed within the AD brain were present in blood proteomic studies of AD. Only complement C4a was seen multiple times within both the blood and brain proteomic studies. INTERPRETATION We report a number of proteins appearing in both the blood and brain of AD patients. Of these proteins, C4a may be a good candidate for further follow-up in large-scale replication efforts.
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Affiliation(s)
- Ali T Khan
- GKT School of Medical Education King's College London London United Kingdom
| | - Richard J B Dobson
- MRC Social, Genetic and Developmental Psychiatry Centre Institute of Psychiatry, Psychology and Neuroscience King's College London London United Kingdom; NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia London United Kingdom
| | - Martina Sattlecker
- MRC Social, Genetic and Developmental Psychiatry Centre Institute of Psychiatry, Psychology and Neuroscience King's College London London United Kingdom; NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia London United Kingdom
| | - Steven J Kiddle
- MRC Social, Genetic and Developmental Psychiatry Centre Institute of Psychiatry, Psychology and Neuroscience King's College London London United Kingdom; NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia London United Kingdom
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Minjarez B, Calderón-González KG, Rustarazo MLV, Herrera-Aguirre ME, Labra-Barrios ML, Rincon-Limas DE, Del Pino MMS, Mena R, Luna-Arias JP. Identification of proteins that are differentially expressed in brains with Alzheimer's disease using iTRAQ labeling and tandem mass spectrometry. J Proteomics 2016; 139:103-21. [PMID: 27012543 DOI: 10.1016/j.jprot.2016.03.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/26/2016] [Accepted: 03/11/2016] [Indexed: 10/22/2022]
Abstract
UNLABELLED Alzheimer's disease is one of the leading causes of dementia in the elderly. It is considered the result of complex events involving both genetic and environmental factors. To gain further insights into this complexity, we quantitatively analyzed the proteome of cortex region of brains from patients diagnosed with Alzheimer's disease, using a bottom-up proteomics approach. We identified 721 isobaric-tagged polypeptides. From this universe, 61 were found overexpressed and 69 subexpressed in three brains with Alzheimer's disease in comparison to a normal brain. We determined that the most affected processes involving the overexpressed polypeptides corresponded to ROS and stress responses. For the subexpressed polypeptides, the main processes affected were oxidative phosphorylation, organellar acidification and cytoskeleton. We used Drosophila to validate some of the hits, particularly those non-previously described as connected with the disease, such as Sideroflexin and Phosphoglucomutase-1. We manipulated their homolog genes in Drosophila models of Aβ- and Tau-induced pathology. We found proteins that can either modify Aβ toxicity, Tau toxicity or both, suggesting specific interactions with different pathways. This approach illustrates the potential of Drosophila to validate hits after MS studies and suggest that model organisms should be included in the pipeline to identify relevant targets for Alzheimer's disease. BIOLOGICAL SIGNIFICANCE We report a set of differentially expressed proteins in three Alzheimer's disease brains in comparison to a normal brain. Our analyses allowed us to identify that the main affected pathways were ROS and stress responses, oxidative phosphorylation, organellar acidification and cytoskeleton. We validated some identified proteins using genetic models of Amyloid-β and Tau-induced pathology in Drosophila melanogaster. With this approach, Sideroflexin and Phosphoglucomutase-1 were identified as novel proteins connected with Alzheimer's disease.
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Affiliation(s)
- Benito Minjarez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México.
| | - Karla Grisel Calderón-González
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México.
| | - Ma Luz Valero Rustarazo
- Unidad de Proteómica, Centro de Investigación Príncipe Felipe, C/Rambla del Saler 16, 46012 Valencia, España.
| | - María Esther Herrera-Aguirre
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México.
| | - María Luisa Labra-Barrios
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México.
| | - Diego E Rincon-Limas
- Department of Neurology, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA; Department of Neuroscience, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA.
| | - Manuel M Sánchez Del Pino
- Unidad de Proteómica, Centro de Investigación Príncipe Felipe, C/Rambla del Saler 16, 46012 Valencia, España.
| | - Raul Mena
- Departamento de Fisiología, Biofísica y Neurociencias, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México
| | - Juan Pedro Luna-Arias
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Gustavo A. Madero, C.P. 07360 Ciudad de México, México.
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Weiner MW, Veitch DP, Aisen PS, Beckett LA, Cairns NJ, Cedarbaum J, Green RC, Harvey D, Jack CR, Jagust W, Luthman J, Morris JC, Petersen RC, Saykin AJ, Shaw L, Shen L, Schwarz A, Toga AW, Trojanowski JQ. 2014 Update of the Alzheimer's Disease Neuroimaging Initiative: A review of papers published since its inception. Alzheimers Dement 2016; 11:e1-120. [PMID: 26073027 DOI: 10.1016/j.jalz.2014.11.001] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/18/2013] [Indexed: 01/18/2023]
Abstract
The Alzheimer's Disease Neuroimaging Initiative (ADNI) is an ongoing, longitudinal, multicenter study designed to develop clinical, imaging, genetic, and biochemical biomarkers for the early detection and tracking of Alzheimer's disease (AD). The initial study, ADNI-1, enrolled 400 subjects with early mild cognitive impairment (MCI), 200 with early AD, and 200 cognitively normal elderly controls. ADNI-1 was extended by a 2-year Grand Opportunities grant in 2009 and by a competitive renewal, ADNI-2, which enrolled an additional 550 participants and will run until 2015. This article reviews all papers published since the inception of the initiative and summarizes the results to the end of 2013. The major accomplishments of ADNI have been as follows: (1) the development of standardized methods for clinical tests, magnetic resonance imaging (MRI), positron emission tomography (PET), and cerebrospinal fluid (CSF) biomarkers in a multicenter setting; (2) elucidation of the patterns and rates of change of imaging and CSF biomarker measurements in control subjects, MCI patients, and AD patients. CSF biomarkers are largely consistent with disease trajectories predicted by β-amyloid cascade (Hardy, J Alzheimer's Dis 2006;9(Suppl 3):151-3) and tau-mediated neurodegeneration hypotheses for AD, whereas brain atrophy and hypometabolism levels show predicted patterns but exhibit differing rates of change depending on region and disease severity; (3) the assessment of alternative methods of diagnostic categorization. Currently, the best classifiers select and combine optimum features from multiple modalities, including MRI, [(18)F]-fluorodeoxyglucose-PET, amyloid PET, CSF biomarkers, and clinical tests; (4) the development of blood biomarkers for AD as potentially noninvasive and low-cost alternatives to CSF biomarkers for AD diagnosis and the assessment of α-syn as an additional biomarker; (5) the development of methods for the early detection of AD. CSF biomarkers, β-amyloid 42 and tau, as well as amyloid PET may reflect the earliest steps in AD pathology in mildly symptomatic or even nonsymptomatic subjects and are leading candidates for the detection of AD in its preclinical stages; (6) the improvement of clinical trial efficiency through the identification of subjects most likely to undergo imminent future clinical decline and the use of more sensitive outcome measures to reduce sample sizes. Multimodal methods incorporating APOE status and longitudinal MRI proved most highly predictive of future decline. Refinements of clinical tests used as outcome measures such as clinical dementia rating-sum of boxes further reduced sample sizes; (7) the pioneering of genome-wide association studies that leverage quantitative imaging and biomarker phenotypes, including longitudinal data, to confirm recently identified loci, CR1, CLU, and PICALM and to identify novel AD risk loci; (8) worldwide impact through the establishment of ADNI-like programs in Japan, Australia, Argentina, Taiwan, China, Korea, Europe, and Italy; (9) understanding the biology and pathobiology of normal aging, MCI, and AD through integration of ADNI biomarker and clinical data to stimulate research that will resolve controversies about competing hypotheses on the etiopathogenesis of AD, thereby advancing efforts to find disease-modifying drugs for AD; and (10) the establishment of infrastructure to allow sharing of all raw and processed data without embargo to interested scientific investigators throughout the world.
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Affiliation(s)
- Michael W Weiner
- Department of Veterans Affairs Medical Center, Center for Imaging of Neurodegenerative Diseases, San Francisco, CA, USA; Department of Radiology, University of California, San Francisco, CA, USA; Department of Medicine, University of California, San Francisco, CA, USA; Department of Psychiatry, University of California, San Francisco, CA, USA; Department of Neurology, University of California, San Francisco, CA, USA.
| | - Dallas P Veitch
- Department of Veterans Affairs Medical Center, Center for Imaging of Neurodegenerative Diseases, San Francisco, CA, USA
| | - Paul S Aisen
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Laurel A Beckett
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, CA, USA
| | - Nigel J Cairns
- Knight Alzheimer's Disease Research Center, Washington University School of Medicine, Saint Louis, MO, USA; Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Jesse Cedarbaum
- Neurology Early Clinical Development, Biogen Idec, Cambridge, MA, USA
| | - Robert C Green
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Danielle Harvey
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, CA, USA
| | | | - William Jagust
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA, USA
| | - Johan Luthman
- Neuroscience Clinical Development, Neuroscience & General Medicine Product Creation Unit, Eisai Inc., Philadelphia, PA, USA
| | - John C Morris
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | | | - Andrew J Saykin
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Leslie Shaw
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Li Shen
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adam Schwarz
- Tailored Therapeutics, Eli Lilly and Company, Indianapolis, IN, USA
| | - Arthur W Toga
- Laboratory of Neuroimaging, Institute of Neuroimaging and Informatics, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - John Q Trojanowski
- Institute on Aging, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Alzheimer's Disease Core Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Udall Parkinson's Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Pathology and Laboratory Medicine, Center for Neurodegenerative Research, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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