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Yang Y, Tong M, de la Monte SM. Early-Stage Moderate Alcohol Feeding Dysregulates Insulin-Related Metabolic Hormone Expression in the Brain: Potential Links to Neurodegeneration Including Alzheimer's Disease. J Alzheimers Dis Rep 2024; 8:1211-1228. [PMID: 39247872 PMCID: PMC11380283 DOI: 10.3233/adr-240026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 08/01/2024] [Indexed: 09/10/2024] Open
Abstract
Background Alzheimer's disease (AD), one of the most prevalent causes of dementia, is mainly sporadic in occurrence but driven by aging and other cofactors. Studies suggest that excessive alcohol consumption may increase AD risk. Objective Our study examined the degree to which short-term moderate ethanol exposure leads to molecular pathological changes of AD-type neurodegeneration. Methods Long Evans male and female rats were fed for 2 weeks with isocaloric liquid diets containing 24% or 0% caloric ethanol (n = 8/group). The frontal lobes were used to measure immunoreactivity to AD biomarkers, insulin-related endocrine metabolic molecules, and proinflammatory cytokines/chemokines by duplex or multiplex enzyme-linked immunosorbent assays (ELISAs). Results Ethanol significantly increased frontal lobe levels of phospho-tau, but reduced Aβ, ghrelin, glucagon, leptin, PAI, IL-2, and IFN-γ. Conclusions Short-term effects of chronic ethanol feeding produced neuroendocrine molecular pathologic changes reflective of metabolic dysregulation, together with abnormalities that likely contribute to impairments in neuroplasticity. The findings suggest that chronic alcohol consumption rapidly establishes a platform for impairments in energy metabolism that occur in both the early stages of AD and alcohol-related brain degeneration.
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Affiliation(s)
- Yiwen Yang
- Molecular Pharmacology, Physiology and Biotechnology Graduate Program, Brown University, Providence, RI, USA
| | - Ming Tong
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Suzanne M de la Monte
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital, Lifespan Academic Institutions, the Providence VA Medical Center, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Departments of Neurology and Neurosurgery, Rhode Island Hospital, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
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Zhu C, Liu J, Lin J, Xu J, Yu E. Investigating the effects of Ginkgo biloba leaf extract on cognitive function in Alzheimer's disease. CNS Neurosci Ther 2024; 30:e14914. [PMID: 39238068 PMCID: PMC11377177 DOI: 10.1111/cns.14914] [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: 12/15/2023] [Revised: 07/18/2024] [Accepted: 07/29/2024] [Indexed: 09/07/2024] Open
Abstract
AIMS Alzheimer's disease (AD) is a neurodegenerative disorder with limited treatment options. This study aimed to investigate the therapeutic effects of Ginkgo biloba leaf extract (GBE) on AD and explore its potential mechanisms of action. METHODS Key chemical components of GBE, including quercetin, luteolin, and kaempferol, were identified using network pharmacology methods. Bioinformatics analysis revealed their potential roles in AD through modulation of the PI3K/AKT/NF-κB signaling pathway. RESULTS Mouse experiments demonstrated that GBE improved cognitive function, enhanced neuronal morphology, and reduced serum inflammatory factors. Additionally, GBE modulated the expression of relevant proteins and mRNA. CONCLUSION GBE shows promise as a potential treatment for AD. Its beneficial effects on cognitive function, neuronal morphology, and inflammation may be attributed to its modulation of the PI3K/AKT/NF-κB signaling pathway. These findings provide experimental evidence for the application of Ginkgo biloba leaf in AD treatment and highlight its potential mechanisms of action.
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Affiliation(s)
- Cheng Zhu
- School of Mental Health, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, Wenzhou Medical University, Wenzhou, China
- School of Mental Health, Wenzhou Medical University, Wenzhou, China
| | - Jie Liu
- The Second People's Hospital of Chuzhou Sleep Disorders Department, Chuzhou, China
| | - Jixin Lin
- Second Clinical Medicine Faculty, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiaxi Xu
- General Psychiatric Department, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Enyan Yu
- Clinical Psychology Department, Zhejiang Cancer Hospital, Hangzhou, China
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Kumar M, Lanke S, Yadav A, Ette M, Mager DE, Shah DK. Inter-Antibody Variability in the Clinical Pharmacokinetics of Monoclonal Antibodies Characterized Using Population Physiologically Based Pharmacokinetic Modeling. Antibodies (Basel) 2024; 13:54. [PMID: 39051330 PMCID: PMC11270311 DOI: 10.3390/antib13030054] [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: 05/30/2024] [Revised: 06/27/2024] [Accepted: 06/29/2024] [Indexed: 07/27/2024] Open
Abstract
The objective of this work was to develop a population physiologically based pharmacokinetic (popPBPK) model to characterize the variability in the clinical PK of monoclonal antibodies (mAbs) following intravenous (IV) and subcutaneous (SC) administration. An extensive literature search was conducted and clinical PK data for FDA-approved as well as non-approved mAbs were collected. Training and validation datasets of 44 and 9 mAbs exhibiting linear pharmacokinetics were used for model development. The variability in antibody PK was captured by accounting for different rate constants of pinocytosis (CLup) and intracellular degradation (kdeg) for different mAbs. Typical values for CLup and kdeg and their respective inter-antibody variabilities (ωClup, ωKdeg) were estimated to be 0.32 L/h/L and 26.1 h-1 (73% and 46%). Varied absorption profiles following SC dosing were characterized by incorporating inter-antibody variability in local degradation (kSC) and rate of lymphatic uptake (S_Lu) of mAbs. Estimates for typical kSC and S_Lu values, and ωKsc,ωS_Lu, were found to be 0.0015 h-1 and 0.54 (193%, and 49%). FDA-approved mAbs showed less local degradation (0.0014 h-1 vs. 0.0038 h-1) compared with other clinically tested mAbs, whereas no substantial differences in physiological processes involved in disposition were observed. To evaluate the generalizability of estimated PK parameters and model validation, the final popPBPK model was used to simulate the range of expected PK for mAbs following SC administration of nine different mAbs that were not used for model-building purposes. The predicted PK of all nine mAbs was within the expected range specified a priori. Thus, the popPBPK model presented here may serve as a tool to predict the clinical PK of mAbs with linear disposition before administering them to humans. The model may also support preclinical-to-clinical translation and 'first-in-human' dose determination for mAbs.
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Affiliation(s)
- Mokshada Kumar
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
| | - Sravani Lanke
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
| | - Alka Yadav
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
| | - Mfonabasi Ette
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
| | - Donald E. Mager
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
- Enhanced Pharmacodynamics, LLC, Buffalo, NY 14203, USA
| | - Dhaval K. Shah
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY 14214-8033, USA; (M.K.); (S.L.); (A.Y.); (M.E.); (D.E.M.)
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Sharma M, Pal P, Gupta SK. Advances in Alzheimer's disease: A multifaceted review of potential therapies and diagnostic techniques for early detection. Neurochem Int 2024; 177:105761. [PMID: 38723902 DOI: 10.1016/j.neuint.2024.105761] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/20/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024]
Abstract
Alzheimer's disease (AD) remains one of the most formidable neurological disorders, affecting millions globally. This review provides a holistic overview of the therapeutic strategies, both conventional and novel, aimed at mitigating the impact of AD. Initially, we delve into the conventional approach, emphasizing the role of Acetylcholinesterase (AChE) inhibition, which has been a cornerstone in AD management. As our understanding of AD evolves, several novel potential approaches emerge. We discuss the promising roles of Butyrylcholinesterase (BChE) inhibition, Tau Protein inhibitors, COX-2 inhibition, PPAR-γ agonism, and FAHH inhibition, among others. The potential of the endocannabinoids (eCB) system, cholesterol-lowering drugs, metal chelators, and MMPs inhibitors are also explored, culminating in the exploration of the pivotal role of microRNA in AD progression. Parallel to these therapeutic insights, we shed light on the novel tools and methodologies revolutionizing AD research. From the quantitative analysis of gene expression by qRTPCR to the evaluation of mitochondrial function using induced pluripotent stem cells (iPSCs), the advances in diagnostic and research tools offer renewed hope. Moreover, we explore the current landscape of clinical trials, highlighting the leading drug interventions and their respective stages of development. This comprehensive review concludes with a look into the future perspectives, capturing the potential breakthroughs and innovations on the horizon. Through a synthesis of current knowledge and emerging research, this article aims to provide a consolidated resource for clinicians, researchers, and academicians in the realm of Alzheimer's disease.
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Affiliation(s)
- Monika Sharma
- Faculty of Pharmacy, Department of Pharmacology, Swami Vivekanand Subharti University, Meerut, Uttar Pradesh, India
| | - Pankaj Pal
- Department of Pharmacy, Banasthali Vidyapith, Rajasthan, India.
| | - Sukesh Kumar Gupta
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad, Uttar Pradesh, India; Department of Ophthalmology, Visual and Anatomical Sciences (OVAS), School of Medicine, Wayne State University, USA.
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Soni AG, Verma A, Joshi R, Shah K, Soni D, Kaur CD, Saraf S, Chauhan NS. Phytoactive drugs used in the treatment of Alzheimer's disease and dementia. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03243-z. [PMID: 38940847 DOI: 10.1007/s00210-024-03243-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024]
Abstract
The prevalence of Alzheimer's disease and other forms of dementia is increasing worldwide, and finding effective treatments for these conditions is a major public health challenge. Natural bioactive drugs have been identified as a promising source of potential treatments, due to their ability to target multiple pathways and their low toxicity. This paper reviews the current state of research on natural bioactive drugs used in the treatment of Alzheimer's disease and other dementias. The paper summarizes the findings of studies on various natural compounds, including curcumin, resveratrol, caffeine, genistein, quercetin, GinkoBiloba, Withaniasomnifera, Ginseng Brahmi, Giloy, and huperzine, and their effects on cognitive function, neuroinflammation, and amyloid-beta accumulation. In this review, we discuss the mechanism of action involved in the treatment of Alzheimer's disease. The paper also discusses the challenges associated with developing natural bioactive drugs for dementia treatment, including issues related to bioavailability and standardization. Finally, the paper suggests directions for future research in this area, including the need for more rigorous clinical trials and the development of novel delivery systems to improve the efficacy of natural bioactive drugs. Overall, this review highlights the potential of natural bioactive drugs as a promising avenue for the development of safe and effective treatments for Alzheimer's disease and other dementias.
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Affiliation(s)
- Anshita Gupta Soni
- Rungta College of Pharmaceutical Sciences and Research, Raipur, Chhattisgarh, India
| | - Astha Verma
- ShriRawatpuraSarkar Institute of Pharmacy, Durg, Chhattisgarh, India
| | - Renjil Joshi
- Rungta College of Pharmaceutical Sciences and Research, Bhilai, Chhattisgarh, India
| | - Kamal Shah
- Institute of Pharmaceutical Research, GLA University, Mathura, 281406, (U.P.), India
| | - Deependra Soni
- Faculty of Pharmacy, MATS University Campus, Aarang, Raipur, Chhattisgarh, India
| | - Chanchal Deep Kaur
- Rungta College of Pharmaceutical Sciences and Research, Raipur, Chhattisgarh, India
| | - Swarnlata Saraf
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
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Sharma M, Pal P, Gupta SK. The neurotransmitter puzzle of Alzheimer's: Dissecting mechanisms and exploring therapeutic horizons. Brain Res 2024; 1829:148797. [PMID: 38342422 DOI: 10.1016/j.brainres.2024.148797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/10/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Alzheimer's Disease (AD) represents a complex interplay of neurological pathways and molecular mechanisms, with significant impacts on patients' lives. This review synthesizes the latest developments in AD research, focusing on both the scientific advancements and their clinical implications. We examine the role of microglia in AD, highlighting their contribution to the disease's inflammatory aspects. The cholinergic hypothesis, a cornerstone of AD research, is re-evaluated, including the role of Alpha-7 Nicotinic Acetylcholine Receptors in disease progression. This review places particular emphasis on the neurotransmission systems, exploring the therapeutic potential of GABAergic neurotransmitters and the role of NMDA inhibitors in the context of glutamatergic neurotransmission. By analyzing the interactions and implications of neurotransmitter pathways in AD, we aim to shed light on emerging therapeutic strategies. In addition to molecular insights, the review addresses the clinical and personal aspects of AD, underscoring the need for patient-centered approaches in treatment and care. The final section looks at the future directions of AD research and treatment, discussing the integration of scientific innovation with patient care. This review aims to provide a comprehensive update on AD, merging scientific insights with practical considerations, suitable for both specialists and those new to the field.
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Affiliation(s)
- Monika Sharma
- Faculty of Pharmacy, Department of Pharmacology, Swami Vivekanand Subharti University, Meerut, Uttar Pradesh, India
| | - Pankaj Pal
- Department of Pharmacy, Banasthali Vidyapith, Rajasthan, India
| | - Sukesh Kumar Gupta
- Department of Anatomy and Neurobiology, School of Medicine, University of California, USA.
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Alafuzoff I, Libard S. Ageing-Related Neurodegeneration and Cognitive Decline. Int J Mol Sci 2024; 25:4065. [PMID: 38612875 PMCID: PMC11012171 DOI: 10.3390/ijms25074065] [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: 02/21/2024] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Neuropathological assessment was conducted on 1630 subjects, representing 5% of all the deceased that had been sent to the morgue of Uppsala University Hospital during a 15-year-long period. Among the 1630 subjects, 1610 were ≥41 years of age (range 41 to 102 years). Overall, hyperphosphorylated (HP) τ was observed in the brains of 98% of the 1610 subjects, and amyloid β-protein (Aβ) in the brains of 64%. The most common alteration observed was Alzheimer disease neuropathologic change (ADNC) (56%), followed by primary age-related tauopathy (PART) in 26% of the subjects. In 16% of the subjects, HPτ was limited to the locus coeruleus. In 14 subjects (<1%), no altered proteins were observed. In 3 subjects, only Aβ was observed, and in 17, HPτ was observed in a distribution other than that seen in ADNC/PART. The transactive DNA-binding protein 43 (TDP43) associated with limbic-predominant age-related TDP encephalopathy (LATE) was observed in 565 (35%) subjects and α-synuclein (αS) pathology, i.e., Lewy body disease (LBD) or multi system atrophy (MSA) was observed in the brains of 21% of the subjects. A total of 39% of subjects with ADNC, 59% of subjects with PART, and 81% of subjects with HPτ limited to the locus coeruleus lacked concomitant pathologies, i.e., LATE-NC or LBD-NC. Of the 293 (18% of the 1610 subjects) subjects with dementia, 81% exhibited a high or intermediate level of ADNC. In 84% of all individuals with dementia, various degrees of concomitant alterations were observed; i.e., MIXED-NC was a common cause of dementia. A high or intermediate level of PART was observed in 10 subjects with dementia (3%), i.e., tangle-predominant dementia. No subjects exhibited only vascular NC (VNC), but in 17 subjects, severe VNC might have contributed to cognitive decline. Age-related tau astrogliopathy (ARTAG) was observed in 37% of the 1610 subjects and in 53% of those with dementia.
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Affiliation(s)
- Irina Alafuzoff
- Department of Pathology, Uppsala University Hospital, 751 85 Uppsala, Sweden;
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 05 Uppsala, Sweden
| | - Sylwia Libard
- Department of Pathology, Uppsala University Hospital, 751 85 Uppsala, Sweden;
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 05 Uppsala, Sweden
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Abdallah AE. Review on anti-alzheimer drug development: approaches, challenges and perspectives. RSC Adv 2024; 14:11057-11088. [PMID: 38586442 PMCID: PMC10995770 DOI: 10.1039/d3ra08333k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/22/2024] [Indexed: 04/09/2024] Open
Abstract
Alzheimer is an irreversible progressive neurodegenerative disease that causes failure of cerebral neurons and disability of the affected person to practice normal daily life activities. There is no concrete evidence to identify the exact reason behind the disease, so several relevant hypotheses emerged, highlighting many possible therapeutic targets, such as acetylcholinesterase, cholinergic receptors, N-methyl d-aspartate receptors, phosphodiesterase, amyloid β protein, protein phosphatase 2A, glycogen synthase kinase-3 beta, β-secretase, γ-secretase, α-secretase, serotonergic receptors, glutaminyl cyclase, tumor necrosis factor-α, γ-aminobutyric acid receptors, and mitochondria. All of these targets have been involved in the design of new potential drugs. An extensive number of these drugs have been studied in clinical trials. However, only galantamine, donepezil, and rivastigmine (ChEIs), memantine (NMDA antagonist), and aducanumab and lecanemab (selective anti-Aβ monoclonal antibodies) have been approved for AD treatment. Many drugs failed in the clinical trials to such an extent that questions have been posed about the significance of some of the aforementioned targets. On the contrary, the data of other drugs were promising and shed light on the significance of their targets for the development of new potent anti-alzheimer drugs.
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Affiliation(s)
- Abdallah E Abdallah
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University 11884 Cairo Egypt
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Gu X, Qi L, Qi Q, Zhou J, Chen S, Wang L. Monoclonal antibody therapy for Alzheimer's disease focusing on intracerebral targets. Biosci Trends 2024; 18:49-65. [PMID: 38382942 DOI: 10.5582/bst.2023.01288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases. Due to the complexity of the disorder and the presence of the blood-brain barrier (BBB), its drug discovery and development are facing enormous challenges, especially after several failures of monoclonal antibody (mAb) trials. Nevertheless, the Food and Drug Administration's approval of the mAb aducanumab has ushered in a new day. As we better understand the disease's pathogenesis and identify novel intracerebral therapeutic targets, antibody-based therapies have advanced over the past few years. The mAb drugs targeting β-amyloid or hyperphosphorylated tau protein are the focus of the current research. Massive neuronal loss and glial cell-mediated inflammation are also the vital pathological hallmarks of AD, signaling a new direction for research on mAb drugs. We have elucidated the mechanisms by which AD-specific mAbs cross the BBB to bind to targets. In order to investigate therapeutic approaches to treat AD, this review focuses on the promising mAbs targeting intracerebral dysfunction and related strategies to cross the BBB.
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Affiliation(s)
- Xiaolei Gu
- College of Acupuncture and Orthopedics, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Long Qi
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Qing Qi
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Zhou
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Song Chen
- Postdoctoral Station of Xiamen University, Fujian, China
| | - Ling Wang
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
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Singh B, Day CM, Abdella S, Garg S. Alzheimer's disease current therapies, novel drug delivery systems and future directions for better disease management. J Control Release 2024; 367:402-424. [PMID: 38286338 DOI: 10.1016/j.jconrel.2024.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
Alzheimer's disease (AD), is a neurodegenerative disorder that escalates with time, exerting a significant impact on physical and mental health and leading to death. The prevalence of AD is progressively rising along with its associated economic burden and necessitates effective therapeutic approaches in the near future. This review paper aims to offer an insightful overview of disease pathogenesis, current FDA-approved drugs, and drugs in different clinical phases. It also explores innovative formulations and drug delivery strategies, focusing on nanocarriers and long-acting medications (LAMs) to enhance treatment efficacy and patient adherence. The review also emphasizes preclinical evidence related to nanocarriers and their potential to improve drug bioavailability, pharmacokinetics, and pharmacodynamics parameters, while also highlighting their ability to minimize systemic side effects. By providing a comprehensive analysis, this review furnishes valuable insights into different pathophysiological mechanisms for future drug development. It aims to inform the development of treatment strategies and innovative formulation approaches for delivering existing molecules in Alzheimer's disease, ultimately striving to improve patient compliance.
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Affiliation(s)
- Baljinder Singh
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Candace M Day
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Sadikalmahdi Abdella
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia.
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Rinauro DJ, Chiti F, Vendruscolo M, Limbocker R. Misfolded protein oligomers: mechanisms of formation, cytotoxic effects, and pharmacological approaches against protein misfolding diseases. Mol Neurodegener 2024; 19:20. [PMID: 38378578 PMCID: PMC10877934 DOI: 10.1186/s13024-023-00651-2] [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: 03/02/2023] [Accepted: 08/17/2023] [Indexed: 02/22/2024] Open
Abstract
The conversion of native peptides and proteins into amyloid aggregates is a hallmark of over 50 human disorders, including Alzheimer's and Parkinson's diseases. Increasing evidence implicates misfolded protein oligomers produced during the amyloid formation process as the primary cytotoxic agents in many of these devastating conditions. In this review, we analyze the processes by which oligomers are formed, their structures, physicochemical properties, population dynamics, and the mechanisms of their cytotoxicity. We then focus on drug discovery strategies that target the formation of oligomers and their ability to disrupt cell physiology and trigger degenerative processes.
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Affiliation(s)
- Dillon J Rinauro
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Fabrizio Chiti
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134, Florence, Italy
| | - Michele Vendruscolo
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK.
| | - Ryan Limbocker
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY, 10996, USA.
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Liu Y, Tan Y, Zhang Z, Yi M, Zhu L, Peng W. The interaction between ageing and Alzheimer's disease: insights from the hallmarks of ageing. Transl Neurodegener 2024; 13:7. [PMID: 38254235 PMCID: PMC10804662 DOI: 10.1186/s40035-024-00397-x] [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: 09/13/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Ageing is a crucial risk factor for Alzheimer's disease (AD) and is characterised by systemic changes in both intracellular and extracellular microenvironments that affect the entire body instead of a single organ. Understanding the specific mechanisms underlying the role of ageing in disease development can facilitate the treatment of ageing-related diseases, such as AD. Signs of brain ageing have been observed in both AD patients and animal models. Alleviating the pathological changes caused by brain ageing can dramatically ameliorate the amyloid beta- and tau-induced neuropathological and memory impairments, indicating that ageing plays a crucial role in the pathophysiological process of AD. In this review, we summarize the impact of several age-related factors on AD and propose that preventing pathological changes caused by brain ageing is a promising strategy for improving cognitive health.
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Affiliation(s)
- Yuqing Liu
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Yejun Tan
- School of Mathematics, University of Minnesota Twin Cities, Minneapolis, MN, 55455, USA
| | - Zheyu Zhang
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Min Yi
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Lemei Zhu
- Academician Workstation, Changsha Medical University, Changsha, 410219, People's Republic of China
| | - Weijun Peng
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China.
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China.
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Mun BR, Park SB, Choi WS. The Oligomeric Form of Amyloid Beta Triggers Astrocyte Activation, Independent of Neurons. Chonnam Med J 2024; 60:27-31. [PMID: 38304130 PMCID: PMC10828080 DOI: 10.4068/cmj.2024.60.1.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 02/03/2024] Open
Abstract
The most common aging-related neurodegenerative disorder is Alzheimer's disease (AD), of which the main symptom is memory disturbance. Though the mechanism of AD pathogenesis is not fully defined, abnormal aggregation of amyloid beta (Aβ) plaques and tau have been considered as key factors and main histological hallmarks of the disease. Astrocyte is responsible for the control of cells and the environment around brain and spinal cord cells. Astrocytes have been implicated with AD. However, the exact function of astrocytes in AD has not been established. In this study, we investigated the regulation of astrocytes in the AD model using primary cultures. We have demonstrated that oligomerized Aβ is toxic to neurons and can induce cell death in primary cultures. In the primary cultures containing neurons and astrocytes, amyloid beta uptake was observed in both neurons and astrocytes. To verify if the uptake of amyloid beta in astrocytes is dependent on neurons, we separated and cultured primary astrocytes with no neurons. Amyloid uptake was still observed in this pure astrocyte culture, suggesting that the uptake of amyloid beta is a neuron-independent function of astrocytes. Astrocyte activation was observed in both pure and mixed cultures. Taken together, our data suggest that astrocyte is activated by oligomerized Aβ and uptakes it, which is independent of neurons.
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Affiliation(s)
- Bo-Ram Mun
- School of Biological Sciences and Technology, College of Natural Sciences, Chonnam National University, Gwangju, Korea
| | - Su-been Park
- School of Biological Sciences and Technology, College of Natural Sciences, Chonnam National University, Gwangju, Korea
| | - Won-Seok Choi
- School of Biological Sciences and Technology, College of Natural Sciences, Chonnam National University, Gwangju, Korea
- College of Medicine, Chonnam National University, Gwangju, Korea
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14
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Zaręba P, Łątka K, Mazur G, Gryzło B, Pasieka A, Godyń J, Panek D, Skrzypczak-Wiercioch A, Höfner GC, Latacz G, Maj M, Espargaró A, Sabaté R, Jóźwiak K, Wanner KT, Sałat K, Malawska B, Kulig K, Bajda M. Discovery of novel multifunctional ligands targeting GABA transporters, butyrylcholinesterase, β-secretase, and amyloid β aggregation as potential treatment of Alzheimer's disease. Eur J Med Chem 2023; 261:115832. [PMID: 37837674 DOI: 10.1016/j.ejmech.2023.115832] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/12/2023] [Accepted: 09/23/2023] [Indexed: 10/16/2023]
Abstract
Alzheimer's disease (AD) is a global health problem in the medical sector that will increase over time. The limited treatment of AD leads to the search for a new clinical candidate. Considering the multifactorial nature of AD, a strategy targeting number of regulatory proteins involved in the development of the disease is an effective approach. Here, we present a discovery of new multi-target-directed ligands (MTDLs), purposely designed as GABA transporter (GAT) inhibitors, that successfully provide the inhibitory activity against butyrylcholinesterase (BuChE), β-secretase (BACE1), amyloid β aggregation and calcium channel blockade activity. The selected GAT inhibitors, 19c and 22a - N-benzylamide derivatives of 4-aminobutyric acid, displayed the most prominent multifunctional profile. Compound 19c (mGAT1 IC50 = 10 μM, mGAT4 IC50 = 12 μM and BuChE IC50 = 559 nM) possessed the highest hBACE1 and Aβ40 aggregation inhibitory activity (IC50 = 1.57 μM and 99 % at 10 μM, respectively). Additionally, it showed a decrease in both the elongation and nucleation constants of the amyloid aggregation process. In contrast compound 22a represented the highest activity and a mixed-type of eqBuChE inhibition (IC50 = 173 nM) with hBACE1 (IC50 = 9.42 μM), Aβ aggregation (79 % at 10 μM) and mGATs (mGAT1 IC50 = 30 μM, mGAT4 IC50 = 25 μM) inhibitory activity. Performed molecular docking studies described the mode of interactions with GATs and enzymatic targets. In ADMET in vitro studies both compounds showed acceptable metabolic stability and low neurotoxicity. Successfully, compounds 19c and 22a at the dose of 30 mg/kg possessed statistically significant antiamnesic properties in a mouse model of amnesia caused by scopolamine and assessed in the novel object recognition (NOR) task or the passive avoidance (PA) task.
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Affiliation(s)
- Paula Zaręba
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Kamil Łątka
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Gabriela Mazur
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Beata Gryzło
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Anna Pasieka
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Justyna Godyń
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Dawid Panek
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Anna Skrzypczak-Wiercioch
- Department of Animal Anatomy and Preclinical Sciences, University Centre of Veterinary Medicine JU-UA, University of Agriculture in Kraków, Mickiewicz 24/28 St., 30-059, Kraków, Poland
| | - Georg C Höfner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstr., 5-13, 81377, Munich, Germany
| | - Gniewomir Latacz
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Maciej Maj
- Department of Biopharmacy, Medical University of Lublin, W. Chodzki 4a St., 20-093, Lublin, Poland
| | - Alba Espargaró
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Av Joan XXIII, S/N, 08028, Barcelona, Spain
| | - Raimon Sabaté
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Av Joan XXIII, S/N, 08028, Barcelona, Spain
| | - Krzysztof Jóźwiak
- Department of Biopharmacy, Medical University of Lublin, W. Chodzki 4a St., 20-093, Lublin, Poland
| | - Klaus T Wanner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstr., 5-13, 81377, Munich, Germany
| | - Kinga Sałat
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Barbara Malawska
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Katarzyna Kulig
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland
| | - Marek Bajda
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9 St., 30-688, Kraków, Poland.
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15
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Hu Z, Zhou S, Li J, Li X, Zhou Y, Zhu Z, Xu J, Liu J. Design, synthesis and biological evaluation of novel indanones derivatives as potent acetylcholinesterase/monoamine oxidase B inhibitors. Future Med Chem 2023; 15:1823-1841. [PMID: 37902028 DOI: 10.4155/fmc-2023-0206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023] Open
Abstract
Aim: Based on a multitarget design strategy, a series of novel indanone-1-benzyl-1,2,3,6-tetrahydropyridin hybrids were identified for the potential treatment of Alzheimer's disease (AD). Results: These compounds exhibited significant inhibitory activities against acetylcholinesterase (AChE) and moderate inhibitory activities toward monoamine oxidase B (MAO-B). The optimal compound A1 possessed excellent dual AChE/MAO-B inhibition both in terms of potency (AChE: IC50 = 0.054 ± 0.004 μM; MAO-B: IC50 = 3.25 ± 0.20 μM), moderate inhibitory effects on self-mediated amyloid-β (Aβ) aggregation and antioxidant activity. In addition, compound A1 exhibited low neurotoxicity. More importantly, compound A1 showed significant cognitive and spatial memory improvements in the scopolamine-induced AD mouse model. Conclusion: All results suggest that compound A1 may become a promising lead of anti-AD drug for further development.
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Affiliation(s)
- Zhaoxin Hu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Shengnan Zhou
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Junda Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Xinnan Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yang Zhou
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Zheying Zhu
- School of Pharmacy, The University of Nottingham, University Park Campus, Nottingham, NG7 2RD, UK
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Jie Liu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
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16
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Kodosaki E, Zetterberg H, Heslegrave A. Validating blood tests as a possible routine diagnostic assay of Alzheimer's disease. Expert Rev Mol Diagn 2023; 23:1153-1165. [PMID: 38018372 DOI: 10.1080/14737159.2023.2289553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION In recent years, exciting developments in disease modifying treatments for Alzheimer's disease (AD) have made accurate and timely diagnosis of this disease a priority. Blood biomarkers (BBMs) for amyloid pathology using improved immunoassay and mass spectrometry techniques have been an area of intense research for the last 10 years and are coming to the fore, as a real prospect to be used in the clinical diagnostics of the disease. AREAS COVERED The following review will update and discuss blood biomarkers that will be most useful in diagnosing AD and the context necessary for their implementation. EXPERT OPINION It is clear we now have BBMs, and technology to measure them, that are capable of detecting amyloid pathology in AD. The challenge is to validate them across platforms and populations to incorporate them into clinical practice. It is important that implementation comes with education, we need to give clinicians the tools for appropriate use and interpretation. It is feasible that BBMs will be used to screen populations, initially for clinical trial entry but also therapeutic intervention in the foreseeable future. We now need to focus BBM research on other pathologies to ensure we accelerate the development of therapeutics for all neurodegenerative diseases.
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Affiliation(s)
- Eleftheria Kodosaki
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- Dementia Research Institute at UCL, London, UK
| | - Henrik Zetterberg
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- Dementia Research Institute at UCL, London, UK
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Wisconsin Alzheimer's Disease Research Centre, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology,Dementia Research Institute at UCL, London, UK
- Hong Kong Centre for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
| | - Amanda Heslegrave
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- Dementia Research Institute at UCL, London, UK
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17
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Hnath B, Chen J, Reynolds J, Choi E, Wang J, Zhang D, Sha CM, Dokholyan NV. Big versus small: The impact of aggregate size in disease. Protein Sci 2023; 32:e4686. [PMID: 37243896 PMCID: PMC10273386 DOI: 10.1002/pro.4686] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
Protein aggregation results in an array of different size soluble oligomers and larger insoluble fibrils. Insoluble fibrils were originally thought to cause neuronal cell deaths in neurodegenerative diseases due to their prevalence in tissue samples and disease models. Despite recent studies demonstrating the toxicity associated with soluble oligomers, many therapeutic strategies still focus on fibrils or consider all types of aggregates as one group. Oligomers and fibrils require different modeling and therapeutic strategies, targeting the toxic species is crucial for successful study and therapeutic development. Here, we review the role of different-size aggregates in disease, and how factors contributing to aggregation (mutations, metals, post-translational modifications, and lipid interactions) may promote oligomers opposed to fibrils. We review two different computational modeling strategies (molecular dynamics and kinetic modeling) and how they are used to model both oligomers and fibrils. Finally, we outline the current therapeutic strategies targeting aggregating proteins and their strengths and weaknesses for targeting oligomers versus fibrils. Altogether, we aim to highlight the importance of distinguishing the difference between oligomers and fibrils and determining which species is toxic when modeling and creating therapeutics for protein aggregation in disease.
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Affiliation(s)
- Brianna Hnath
- Department of Biomedical EngineeringPenn State UniversityUniversity ParkPennsylvaniaUSA
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Jiaxing Chen
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Joshua Reynolds
- Department of Biomedical EngineeringPenn State UniversityUniversity ParkPennsylvaniaUSA
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Esther Choi
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
- Medical Scientist Training ProgramPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Jian Wang
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Dongyan Zhang
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
| | - Congzhou M. Sha
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
- Medical Scientist Training ProgramPenn State College of MedicineHersheyPennsylvaniaUSA
- Department of Engineering Science and MechanicsPenn State UniversityUniversity ParkPennsylvaniaUSA
| | - Nikolay V. Dokholyan
- Department of Biomedical EngineeringPenn State UniversityUniversity ParkPennsylvaniaUSA
- Department of PharmacologyPenn State College of MedicineHersheyPennsylvaniaUSA
- Department of Engineering Science and MechanicsPenn State UniversityUniversity ParkPennsylvaniaUSA
- Department of Biochemistry & Molecular BiologyPenn State College of MedicineHersheyPennsylvaniaUSA
- Department of ChemistryPenn State UniversityUniversity ParkPennsylvaniaUSA
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18
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Pasieka A, Panek D, Zaręba P, Sługocka E, Gucwa N, Espargaró A, Latacz G, Khan N, Bucki A, Sabaté R, Więckowska A, Malawska B. Novel drug-like fluorenyl derivatives as selective butyrylcholinesterase and β-amyloid inhibitors for the treatment of Alzheimer's disease. Bioorg Med Chem 2023; 88-89:117333. [PMID: 37236021 DOI: 10.1016/j.bmc.2023.117333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/23/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
Butyrylcholinesterase (BuChE) and amyloid β (Aβ) aggregation remain important biological target and mechanism in the search for effective treatment of Alzheimer's disease. Simultaneous inhibition thereof by the application of multifunctional agents may lead to improvement in terms of symptoms and causes of the disease. Here, we present the rational design, synthesis, biological evaluation and molecular modelling studies of novel series of fluorene-based BuChE and Aβ inhibitors with drug-like characteristics and advantageous Central Nervous System Multiparameter Optimization scores. Among 17 synthesized and tested compounds, we identified 22 as the most potent eqBuChE inhibitor with IC50 of 38 nM and 37.4% of Aβ aggregation inhibition at 10 μM. Based on molecular modelling studies, including molecular dynamics, we determined the binding mode of the compounds within BuChE and explained the differences in the activity of the two enantiomers of compound 22. A novel series of fluorenyl compounds meeting the drug-likeness criteria seems to be a promising starting point for further development as anti-Alzheimer agents.
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Affiliation(s)
- Anna Pasieka
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
| | - Dawid Panek
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland.
| | - Paula Zaręba
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
| | - Emilia Sługocka
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland; Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, 16 Łazarza St., 31-530 Kraków, Poland
| | - Natalia Gucwa
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
| | - Alba Espargaró
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Av Joan XXIII, S/N, 08028 Barcelona, Spain
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
| | - Nadia Khan
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland; Departement of Pathophysiology, Jagiellonian University Medical College, 18 Czysta St., 31-121 Kraków, Poland
| | - Adam Bucki
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna St., 30-688 Kraków, Poland
| | - Raimon Sabaté
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Av Joan XXIII, S/N, 08028 Barcelona, Spain
| | - Anna Więckowska
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
| | - Barbara Malawska
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna St. 9, 30-688 Kraków, Poland
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19
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Ackley SF, Wang J, Chen R, Power MC, Allen IE, Glymour MM. Estimated Effects of Amyloid Reduction on Cognitive Change: A Bayesian Update across a Range of Priors. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.04.28.23289223. [PMID: 37205483 PMCID: PMC10187341 DOI: 10.1101/2023.04.28.23289223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Introduction Results of the CLARITY-AD and GRADUATE I and II trials rekindled discussion on the impact of amyloid-targeting drugs. We use a Bayesian approach to quantify how a rational observer would have updated their prior beliefs based on new trial results. Methods We used publicly available data from the CLARITY-AD and GRADUATE I & II trials to estimate the effect of reducing amyloid on CDR-SB score. A range of prior positions were then updated according to Bayes Theorem using these estimates. Results After updating with new trial data, a wide range of starting positions resulted in credible intervals that did not include no effect of amyloid reduction on CDR-SB. Discussion For a range of starting beliefs and assuming veracity of underlying data, rational observers would conclude there is a small benefit of amyloid-reductions on cognition. This benefit must be weighed against opportunity cost and side effect risk.
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Chowdhury S, Chowdhury NS. Novel anti-amyloid-beta (Aβ) monoclonal antibody lecanemab for Alzheimer's disease: A systematic review. Int J Immunopathol Pharmacol 2023; 37:3946320231209839. [PMID: 37902139 PMCID: PMC10617290 DOI: 10.1177/03946320231209839] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 10/06/2023] [Indexed: 10/31/2023] Open
Abstract
BACKGROUND Lecanemab is the latest monoclonal antibody that targets beta-amyloid approved exclusively for treatment of Alzheimer's disease with mild cognitive impairment or mild dementia. This article aims to provide a systematic review of the efficacy, and safety of lecanemab in slowing clinical decline in Alzheimer's disease. METHODS A comprehensive search of various databases, including the National Institute of Health clinical trials registry, PubMed, and the Cochrane library, was conducted until July 2023 using the keywords lecanemab, BAN2401, and Alzheimer's disease. Additionally, conference abstracts listed in the Cochrane database (including Embase) and drug information from the US Food and Drug Administration (FDA) label were examined. Only clinical trials published in the English language were considered. In total, 107 articles were retrieved, and after thorough evaluation, three randomized, double-blind, multicenter clinical trials involving 2729 participants were included in the analysis. RESULTS The FDA approved lecanemab for Alzheimer's disease in January 2023 which acts as a novel disease-modifying anti-amyloid-beta (Aβ) human monoclonal antibody and is administered intravenously. Based on the clinical trials included in this review, lecanemab was found efficacious in reducing the accumulation of beta-amyloid and slowing down the cognitive decline and it was well tolerated. Lecanemab had a statistically significant change from baseline in Clinical Dementia Rating-Sum of Boxes (CDR-SB), Alzheimer's Disease Composite Score (ADCOMS), Alzheimer's Disease Assessment Scale (ADAScog14), Alzheimer's Disease Cooperative Study-Activities of Daily Living Scale for Mild Cognitive Impairment (ADCS-MCI-ADL), and reductions in brain amyloid burden. The most common treatment-emergent adverse events were headache, infusion-related reactions, and Amyloid related imaging abnormalities-edema. CONCLUSIONS Lecanemab therapy led to a substantial decrease in amyloid plaques and a noticeable slowing of clinical decline. The findings suggest a meaningful connection between the reduction in amyloid and the positive impact on patients' clinical outcomes, hinting at potential disease-modifying effects.
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21
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Wu W, Shen A, Lee I, Miranda EG, Spratt H, Pappolla M, Fang X, Bao X. Changes of tRNA-Derived Fragments by Alzheimer's Disease in Cerebrospinal Fluid and Blood Serum. J Alzheimers Dis 2023; 96:1285-1304. [PMID: 37980659 PMCID: PMC10832608 DOI: 10.3233/jad-230412] [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] [Indexed: 11/21/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common type of dementia, affecting individuals over 65. AD is also a multifactorial disease, with disease mechanisms incompletely characterized, and disease-modifying therapies are marginally effective. Biomarker signatures may shed light on the diagnosis, disease mechanisms, and the development of therapeutic targets. tRNA-derived RNA fragments (tRFs), a family of recently discovered small non-coding RNAs, have been found to be significantly enhanced in human AD hippocampus tissues. However, whether tRFs change in body fluids is unknown. OBJECTIVE To investigate whether tRFs in body fluids are impacted by AD. METHODS We first used T4 polynucleotide kinase-RNA-seq, a modified next-generation sequencing technique, to identify detectable tRFs in human cerebrospinal fluid and serum samples. The detectable tRFs were then compared in these fluids from control, AD, and mild cognitive impairment patients using tRF qRT-PCR. The stability of tRFs in serum was also investigated by checking the change in tRFs in response to protein digestion or exosome lysis. RESULTS Among various tRFs, tRF5-ProAGG seemed to be impacted by AD in both cerebrospinal fluid and serum. AD-impacted serum tRF5-ProAGG showed a correlation with the AD stage. Putative targets of tRF5-ProAGG in the hippocampus were also predicted by a computational algorithm, with some targets being validated experimentally and one of them being in a negative correlation with tRF5-ProAGG even using a small size of samples. CONCLUSIONS tRF5-ProAGG showed the potential as an AD biomarker and may play a role in disease progression.
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Affiliation(s)
- Wenzhe Wu
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
| | - Audrey Shen
- Department of Human Physiology, Boston University, Boston, MA, USA
| | | | - Ernesto G. Miranda
- Department of Neurology and Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX
| | - Heidi Spratt
- Department of Biostatistics and Data Science, The University of Texas Medical Branch, Galveston, TX
- The Institute of Translational Sciences, The University of Texas Medical Branch, Galveston, TX
| | - Miguel Pappolla
- Department of Neurology and Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX
| | - Xiang Fang
- Department of Neurology and Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX
| | - Xiaoyong Bao
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, USA
- Department of Biostatistics and Data Science, The University of Texas Medical Branch, Galveston, TX
- The Institute of Translational Sciences, The University of Texas Medical Branch, Galveston, TX
- The Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX
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22
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de la Monte SM. Malignant Brain Aging: The Formidable Link Between Dysregulated Signaling Through Mechanistic Target of Rapamycin Pathways and Alzheimer's Disease (Type 3 Diabetes). J Alzheimers Dis 2023; 95:1301-1337. [PMID: 37718817 PMCID: PMC10896181 DOI: 10.3233/jad-230555] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Malignant brain aging corresponds to accelerated age-related declines in brain functions eventually derailing the self-sustaining forces that govern independent vitality. Malignant brain aging establishes the path toward dementing neurodegeneration, including Alzheimer's disease (AD). The full spectrum of AD includes progressive dysfunction of neurons, oligodendrocytes, astrocytes, microglia, and the microvascular systems, and is mechanistically driven by insulin and insulin-like growth factor (IGF) deficiencies and resistances with accompanying deficits in energy balance, increased cellular stress, inflammation, and impaired perfusion, mimicking the core features of diabetes mellitus. The underlying pathophysiological derangements result in mitochondrial dysfunction, abnormal protein aggregation, increased oxidative and endoplasmic reticulum stress, aberrant autophagy, and abnormal post-translational modification of proteins, all of which are signature features of both AD and dysregulated insulin/IGF-1-mechanistic target of rapamycin (mTOR) signaling. This article connects the dots from benign to malignant aging to neurodegeneration by reviewing the salient pathologies associated with initially adaptive and later dysfunctional mTOR signaling in the brain. Effective therapeutic and preventive measures must be two-pronged and designed to 1) address complex and shifting impairments in mTOR signaling through the re-purpose of effective anti-diabetes therapeutics that target the brain, and 2) minimize the impact of extrinsic mediators of benign to malignant aging transitions, e.g., inflammatory states, obesity, systemic insulin resistance diseases, and repeated bouts of general anesthesia, by minimizing exposures or implementing neuroprotective measures.
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Affiliation(s)
- Suzanne M. de la Monte
- Departments of Pathology and Laboratory Medicine, Medicine, Neurology and Neurosurgery, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
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