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Praharaj PP, Patra S, Singh A, Panigrahi DP, Lee HY, Kabir MF, Hossain MK, Patra SK, Patro BS, Patil S, Klionsky DJ, Chae HJ, Bhutia SK. CLU ( clusterin) and PPARGC1A/PGC1α coordinately control mitophagy and mitochondrial biogenesis for oral cancer cell survival. Autophagy 2024:1-25. [PMID: 38447939 DOI: 10.1080/15548627.2024.2309904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024] Open
Abstract
Mitophagy involves the selective elimination of defective mitochondria during chemotherapeutic stress to maintain mitochondrial homeostasis and sustain cancer growth. Here, we showed that CLU (clusterin) is localized to mitochondria to induce mitophagy controlling mitochondrial damage in oral cancer cells. Moreover, overexpression and knockdown of CLU establish its mitophagy-specific role, where CLU acts as an adaptor protein that coordinately interacts with BAX and LC3 recruiting autophagic machinery around damaged mitochondria in response to cisplatin treatment. Interestingly, CLU triggers class III phosphatidylinositol 3-kinase (PtdIns3K) activity around damaged mitochondria, and inhibition of mitophagic flux causes the accumulation of excessive mitophagosomes resulting in reactive oxygen species (ROS)-dependent apoptosis during cisplatin treatment in oral cancer cells. In parallel, we determined that PPARGC1A/PGC1α (PPARG coactivator 1 alpha) activates mitochondrial biogenesis during CLU-induced mitophagy to maintain the mitochondrial pool. Intriguingly, PPARGC1A inhibition through small interfering RNA (siPPARGC1A) and pharmacological inhibitor (SR-18292) treatment counteracts CLU-dependent cytoprotection leading to mitophagy-associated cell death. Furthermore, co-treatment of SR-18292 with cisplatin synergistically suppresses tumor growth in oral cancer xenograft models. In conclusion, CLU and PPARGC1A are essential for sustained cancer cell growth by activating mitophagy and mitochondrial biogenesis, respectively, and their inhibition could provide better therapeutic benefits against oral cancer.
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Affiliation(s)
- Prakash P Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Srimanta Patra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Amruta Singh
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Debasna P Panigrahi
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Hwa Y Lee
- Department of Pharmacology, Jeonbuk National University Medical School, Jeonju, Jeonbuk, Republic of Korea
| | - Mohammad F Kabir
- Department of Pharmacology, School of Medicine, Institute of New Drug Development, Jeonbuk National University, Jeonju, Republic of Korea
| | - Muhammad K Hossain
- School of Pharmacy, Jeonbuk National University, Jeonju, Jeonbuk, Republic of Korea
| | - Samir K Patra
- Laboratory of epigenetics, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Birija S Patro
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
| | - Shankargouda Patil
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT, USA
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Han J Chae
- School of Pharmacy, Jeonbuk National University, Jeonju, Jeonbuk, Republic of Korea
- Non-Clinical Evaluation Center, Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Sujit K Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, India
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Ke C, Huang B, Xiang J, Liang J, Wu G, Qiu M, Cheng K, Mao L, Lei W, Hu Y, Tang X, Tian Y, Chen G, Luo OJ, Zhang H. Secreted Clusterin Inhibits Tumorigenesis by Modulating Tumor Cell and Macrophage in Human Meningioma. Neuro Oncol 2024:noae034. [PMID: 38416702 DOI: 10.1093/neuonc/noae034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Indexed: 03/01/2024] Open
Abstract
BACKGROUND Meningioma is the most common primary intracranial tumor with high frequency of postoperative recurrence, yet the biology of meningioma malignancy process is still obscure. METHODS To identify potential therapeutic targets and tumor suppressors, we performed single-cell transcriptome analysis through meningioma malignancy, which included 18 samples spanning normal meninges, benign and high grade in situ tumors, and lung metastases, for extensive transcriptome characterization. Tumor suppressor candidate gene and molecular mechanism were functionally validated at animal model and cellular level. RESULTS Comprehensive analysis and validation in mice and clinical cohorts indicated Clusterin (CLU) had suppressive function for meningioma tumorigenesis and malignancy by inducing mitochondria damage and triggering type I interferon pathway dependent on its secreted isoform, and the inhibition effect was enhanced by TNFα as TNFα also induced type I interferon pathway. The expression of CLU was upregulated by histone deacetylase inhibition. Meanwhile, both intra- and extra-cellular CLU overexpression enhanced macrophage polarization towards M1 phenotype and TNFα production, thus promoted tumor killing and phagocytosis. CONCLUSIONS CLU might be a key brake of meningioma malignance by synchronous modulating tumor cells and their microenvironment. Our work provides comprehensive insights into meningioma malignancy and a potential therapeutic strategy.
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Affiliation(s)
- Chao Ke
- Department of Neurosurgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, China
| | - Boya Huang
- Department of Systems Biomedical Sciences, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jian Xiang
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jinlian Liang
- Department of Biophysics and Biochemistry, School of Life Sciences, Guangzhou University, Guangzhou, Guangdong 510006, China
| | - Guangjie Wu
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Minghui Qiu
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Kai Cheng
- Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, China
| | - Lipeng Mao
- Department of Systems Biomedical Sciences, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Wen Lei
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yang Hu
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute, Guangdong Provincial Fertility Hospital, Guangzhou 510030, China
| | - Xiaogen Tang
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yizhen Tian
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Guobing Chen
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Oscar Junhong Luo
- Department of Systems Biomedical Sciences, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Hongyi Zhang
- Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
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Kapuganti RS, Sahoo L, Mohanty PP, Hayat B, Parija S, Alone DP. Role of clusterin gene 3'-UTR polymorphisms and promoter hypomethylation in the pathogenesis of pseudoexfoliation syndrome and pseudoexfoliation glaucoma. Biochim Biophys Acta Gene Regul Mech 2023; 1866:194980. [PMID: 37652361 DOI: 10.1016/j.bbagrm.2023.194980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023]
Abstract
Pseudoexfoliation (PEX) is a multifactorial age-related disease characterized by the deposition of extracellular fibrillar aggregates in the anterior ocular tissues. This study aims to identify the genetic and epigenetic contribution of clusterin (CLU) in PEX pathology. CLU is a molecular chaperone upregulated in PEX and genetically associated with the disease. Sequencing of a 2.9 kb region encompassing the previously associated rs2279590 in 250 control and 313 PEX [(207 pseudoexfoliation syndrome (PEXS) and 106 pseudoexfoliation glaucoma (PEXG)] individuals identified three single nucleotide polymorphisms (SNPs), rs9331942, rs9331949 and rs9331950, in the 3'-UTR of CLU of which rs9331942 and rs9331949 were found to be significantly associated with PEXS and PEXG as risk factors. Following in silico analysis, in vitro luciferase reporter assays in human embryonic kidney cells revealed that risk alleles at rs9331942 and rs9331949 bind to miR-223 and miR-1283, respectively, suggesting differential regulation of clusterin in the presence of risk alleles at the SNPs. Further, through bisulfite sequencing, we also identified that CLU promoter is hypomethylated in DNA from blood and lens capsules of PEX patients compared to controls that correlated with decreased expression of DNA methyltransferase 1 (DNMT1). Promoter demethylation of CLU using DNMT inhibitor, 5'-aza-dC, in human lens epithelial cells increased CLU expression. Chromatin immunoprecipitation assays showed that the demethylated CLU promoter provides increased access to the transcription factor, Sp1, which might lead to enhanced expression of CLU. In conclusion, this study highlights the different molecular mechanisms of clusterin regulation in pseudoexfoliation pathology.
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Affiliation(s)
- Ramani Shyam Kapuganti
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha, 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | - Lipsa Sahoo
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha, 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | | | - Bushra Hayat
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha, 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | - Sucheta Parija
- All India Institute of Medical Sciences, Bhubaneswar, Sijua, Patrapada, Bhubaneswar, Odisha, 751019, India
| | - Debasmita Pankaj Alone
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha, 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai, 400094, India.
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Palihati N, Tang Y, Yin Y, Yu D, Liu G, Quan Z, Ni J, Yan Y, Qing H. Clusterin is a Potential Therapeutic Target in Alzheimer's Disease. Mol Neurobiol 2023:10.1007/s12035-023-03801-1. [PMID: 38017342 DOI: 10.1007/s12035-023-03801-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/10/2023] [Indexed: 11/30/2023]
Abstract
In recent years, Clusterin, a glycosylated protein with multiple biological functions, has attracted extensive research attention. It is closely associated with the physiological and pathological states within the organism. Particularly in Alzheimer's disease (AD) research, Clusterin plays a significant role in the disease's occurrence and progression. Numerous studies have demonstrated a close association between Clusterin and AD. Firstly, the expression level of Clusterin in the brain tissue of AD patients is closely related to pathological progression. Secondly, Clusterin is involved in the deposition and formation of β-amyloid, which is a crucial process in AD development. Furthermore, Clusterin may affect the pathogenesis of AD through mechanisms such as regulating inflammation, controlling cell apoptosis, and clearing pathological proteins. Therefore, further research on the relationship between Clusterin and AD will contribute to a deeper understanding of the etiology of this neurodegenerative disease and provide a theoretical basis for developing early diagnostic and therapeutic strategies for AD. This also makes Clusterin one of the research focuses as a potential biomarker for AD diagnosis and treatment monitoring.
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Affiliation(s)
- Nazhakaiti Palihati
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuanhong Tang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Yajuan Yin
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Ding Yu
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Gang Liu
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Zhenzhen Quan
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Junjun Ni
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Yan Yan
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China.
| | - Hong Qing
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China.
- Department of Biology, Shenzhen MSU-BIT University, Shenzhen, 518172, China.
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5
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Gholami A. Alzheimer's disease: The role of proteins in formation, mechanisms, and new therapeutic approaches. Neurosci Lett 2023; 817:137532. [PMID: 37866702 DOI: 10.1016/j.neulet.2023.137532] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/03/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurological disorder that affects the central nervous system (CNS), leading to memory and cognitive decline. In AD, the brain experiences three main structural changes: a significant decrease in the quantity of neurons, the development of neurofibrillary tangles (NFT) composed of hyperphosphorylated tau protein, and the formation of amyloid beta (Aβ) or senile plaques, which are protein deposits found outside cells and surrounded by dystrophic neurites. Genetic studies have identified four genes associated with autosomal dominant or familial early-onset AD (FAD): amyloid precursor protein (APP), presenilin 1 (PS1), presenilin 2 (PS2), and apolipoprotein E (ApoE). The formation of plaques primarily involves the accumulation of Aβ, which can be influenced by mutations in APP, PS1, PS2, or ApoE genes. Mutations in the APP and presenilin (PS) proteins can cause an increased amyloid β peptides production, especially the further form of amyloidogenic known as Aβ42. Apart from genetic factors, environmental factors such as cytokines and neurotoxins may also have a significant impact on the development and progression of AD by influencing the formation of amyloid plaques and intracellular tangles. Exploring the causes and implications of protein aggregation in the brain could lead to innovative therapeutic approaches. Some promising therapy strategies that have reached the clinical stage include using acetylcholinesterase inhibitors, estrogen, nonsteroidal anti-inflammatory drugs (NSAIDs), antioxidants, and antiapoptotic agents. The most hopeful therapeutic strategies involve inhibiting activity of secretase and preventing the β-amyloid oligomers and fibrils formation, which are associated with the β-amyloid fibrils accumulation in AD. Additionally, immunotherapy development holds promise as a progressive therapeutic approach for treatment of AD. Recently, the two primary categories of brain stimulation techniques that have been studied for the treatment of AD are invasive brain stimulation (IBS) and non-invasive brain stimulation (NIBS). In this article, the amyloid proteins that play a significant role in the AD formation, the mechanism of disease formation as well as new drugs utilized to treat of AD will be reviewed.
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Affiliation(s)
- Amirreza Gholami
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
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6
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Nurcombe ZW, Hehr CL, McFarlane S. Plexina4 and cell survival in the developing zebrafish hindbrain. Dev Dyn 2023; 252:1323-1337. [PMID: 37283310 DOI: 10.1002/dvdy.633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Growth factors are important in the developing and mature nervous system to support the survival of neurons. Developmental signaling molecules are known for their roles in controlling neurogenesis and neural circuit formation. Whether or not these molecules also have roles in cell survival in the developing nervous system is poorly understood. Plexins are a family of transmembrane receptors that bind Semaphorin ligands and are known to function in the guidance of developing axons and blood vessels. RESULTS In embryonic zebrafish, plexina4 is expressed widely in the brain, becoming largely restricted to the hindbrain as neurogenesis and differentiation proceed. Apoptosis is increased in the embryonic hindbrain of a plexina4ca307/ca307 CRISPR mutant. Based on the literature, we tested the secreted heat shock protein, Clusterin, as a candidate ligand to mediate cell survival through Plexina4. clusterin is expressed by the floor plate of the embryonic zebrafish hindbrain, in proximity to plexina4-expressing hindbrain cells. Morpholino-mediated knockdown of Clusterin increases cell apoptosis in the hindbrain, with additional cell death observed in epistasis experiments where Clusterin is knocked down in a plexina4 mutant background. CONCLUSIONS Our data suggest that Plexina4 promotes cell survival in the developing zebrafish hindbrain, likely through a pathway independent of Clusterin.
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Affiliation(s)
- Zachary W Nurcombe
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Graduate Program in Neuroscience, University of Calgary, Calgary, Alberta, Canada
| | - Carrie Lynn Hehr
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sarah McFarlane
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
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Steblaj B, Kutter APN, Stirn M, Daminet S, Major A, Zini E. Endotoxic kidney injury in Beagle dogs assessed by serum creatinine and symmetric dimethylarginine, and urinary neutrophil gelatinase-associated lipocalin and clusterin. Res Vet Sci 2023; 162:104966. [PMID: 37516042 DOI: 10.1016/j.rvsc.2023.104966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/12/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
Sepsis of Gram negative bacterial origin results in lipopolysaccharide-induced endotoxemia. This often leads to acute kidney injury (AKI) and its recognition remains a challenge and delays treatment. As renal damage occurs before a rise in serum creatinine is detected, new early biomarkers of kidney injury need to be explored. The aim of this study was to determine changes in serum parameters of renal function and urine biomarkers of renal injury. This was a descriptive study. Endotoxemia was induced intravenously in six anaesthetized Beagles (T1). To achieve normotension, dogs received fluids (T2), followed by a continuous infusion of noradrenaline and dexmedetomidine or 0.9% NaCl (T3). Ten minutes later, the dogs received fluids (T4) and noradrenaline and dexmedetomidine or 0.9% NaCl in a crossover manner (T5). At each timepoint, blood and urine were collected for serum creatinine, urea, symmetric dimethylarginine, urine protein/creatinine (UPC) ratio, urine neutrophil-gelatinase-associated lipocalin (U-NGAL), U-NGAL/creatinine ratio, urine clusterin (U-clusterin) and U-clusterin/creatinine ratio. Data were analyzed using a mixed-effect model taking into account time and stage of veterinary AKI (VAKI). Three of six dogs had a VAKI stage ≥1; one with anuria and elevated creatinine. Serum creatinine (P < 0.001), U-NGAL/creatinine ratio (P = 0.01) and U-clusterin/creatinine ratio increased over time (P < 0.01). The UPC ratio (mean (range) 0.68 (0.35-2.3) versus 0.39 (0.15-0.71) P < 0.01) and U-NGAL (3164 pg/mL (100-147,555) versus 100 (100-14,524), P = 0.01) were higher in VAKI stage ≥1 versus stage 0, respectively. Endotoxemia induced VAKI stage ≥1 in half of the dogs. Repeated measurement of selected parameters could detect AKI early.
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Affiliation(s)
- B Steblaj
- Section of Anesthesiology, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 258c, 8057 Zürich, Switzerland.
| | - A P N Kutter
- Section of Anesthesiology, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 258c, 8057 Zürich, Switzerland
| | - M Stirn
- Clinical laboratory, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zürich, Switzerland
| | - S Daminet
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - A Major
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 258c, 8057 Zürich, Switzerland
| | - E Zini
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 258c, 8057 Zürich, Switzerland; Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell'Università, 35020 Legnaro, Italy
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8
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Gao L, Lin Y, Yue P, Li S, Zhang Y, Mi N, Bai M, Fu W, Xia Z, Jiang N, Cao J, Yang M, Ma Y, Zhang F, Zhang C, Leung JW, He S, Yuan J, Meng W, Li X. Identification of a novel bile marker clusterin and a public online prediction platform based on deep learning for cholangiocarcinoma. BMC Med 2023; 21:294. [PMID: 37553571 PMCID: PMC10408060 DOI: 10.1186/s12916-023-02990-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/20/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Cholangiocarcinoma (CCA) is a highly aggressive malignant tumor, and its diagnosis is still a challenge. This study aimed to identify a novel bile marker for CCA diagnosis based on proteomics and establish a diagnostic model with deep learning. METHODS A total of 644 subjects (236 CCA and 408 non-CCA) from two independent centers were divided into discovery, cross-validation, and external validation sets for the study. Candidate bile markers were identified by three proteomics data and validated on 635 clinical humoral specimens and 121 tissue specimens. A diagnostic multi-analyte model containing bile and serum biomarkers was established in cross-validation set by deep learning and validated in an independent external cohort. RESULTS The results of proteomics analysis and clinical specimen verification showed that bile clusterin (CLU) was significantly higher in CCA body fluids. Based on 376 subjects in the cross-validation set, ROC analysis indicated that bile CLU had a satisfactory diagnostic power (AUC: 0.852, sensitivity: 73.6%, specificity: 90.1%). Building on bile CLU and 63 serum markers, deep learning established a diagnostic model incorporating seven factors (CLU, CA19-9, IBIL, GGT, LDL-C, TG, and TBA), which showed a high diagnostic utility (AUC: 0.947, sensitivity: 90.3%, specificity: 84.9%). External validation in an independent cohort (n = 259) resulted in a similar accuracy for the detection of CCA. Finally, for the convenience of operation, a user-friendly prediction platform was built online for CCA. CONCLUSIONS This is the largest and most comprehensive study combining bile and serum biomarkers to differentiate CCA. This diagnostic model may potentially be used to detect CCA.
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Affiliation(s)
- Long Gao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Yanyan Lin
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
- Gansu Province Key Laboratory of Biological Therapy and Regenerative Medicine Transformation, Lanzhou, 730030, Gansu, China
| | - Ping Yue
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
- Gansu Province Key Laboratory of Biological Therapy and Regenerative Medicine Transformation, Lanzhou, 730030, Gansu, China
| | - Shuyan Li
- School of Medical Information and Engineering, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yong Zhang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
- Gansu Province Key Laboratory of Biological Therapy and Regenerative Medicine Transformation, Lanzhou, 730030, Gansu, China
| | - Ningning Mi
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Mingzhen Bai
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Wenkang Fu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Zhili Xia
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Ningzu Jiang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Jie Cao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Man Yang
- Clinical Research Center, Big Data Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Yanni Ma
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Fanxiang Zhang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Chao Zhang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Joseph W Leung
- Division of Gastroenterology, UC Davis Medical Center and Sacramento VA Medical Center, Sacramento, CA, 95817, USA
| | - Shun He
- Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Jinqiu Yuan
- Clinical Research Center, Big Data Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China.
| | - Wenbo Meng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China.
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China.
- Gansu Province Key Laboratory of Biological Therapy and Regenerative Medicine Transformation, Lanzhou, 730030, Gansu, China.
| | - Xun Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China
- Gansu Province Key Laboratory of Biological Therapy and Regenerative Medicine Transformation, Lanzhou, 730030, Gansu, China
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Veteleanu A, Stevenson-Hoare J, Keat S, Daskoulidou N, Zetterberg H, Heslegrave A, Escott-Price V, Williams J, Sims R, Zelek WM, Carpanini SM, Morgan BP. Alzheimer's disease-associated complement gene variants influence plasma complement protein levels. J Neuroinflammation 2023; 20:169. [PMID: 37480051 PMCID: PMC10362776 DOI: 10.1186/s12974-023-02850-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Alzheimer's disease (AD) has been associated with immune dysregulation in biomarker and genome-wide association studies (GWAS). GWAS hits include the genes encoding complement regulators clusterin (CLU) and complement receptor 1 (CR1), recognised as key players in AD pathology, and complement proteins have been proposed as biomarkers. MAIN BODY To address whether changes in plasma complement protein levels in AD relate to AD-associated complement gene variants we first measured relevant plasma complement proteins (clusterin, C1q, C1s, CR1, factor H) in a large cohort comprising early onset AD (EOAD; n = 912), late onset AD (LOAD; n = 492) and control (n = 504) donors. Clusterin and C1q were significantly increased (p < 0.001) and sCR1 and factor H reduced (p < 0.01) in AD plasma versus controls. ROC analyses were performed to assess utility of the measured complement biomarkers, alone or in combination with amyloid beta, in predicting AD. C1q was the most predictive single complement biomarker (AUC 0.655 LOAD, 0.601 EOAD); combining C1q with other complement or neurodegeneration makers through stepAIC-informed models improved predictive values slightly. Effects of GWS SNPs (rs6656401, rs6691117 in CR1; rs11136000, rs9331888 in CLU; rs3919533 in C1S) on protein concentrations were assessed by comparing protein levels in carriers of the minor vs major allele. To identify new associations between SNPs and changes in plasma protein levels, we performed a GWAS combining genotyping data in the cohort with complement protein levels as endophenotype. SNPs in CR1 (rs6656401), C1S (rs3919533) and CFH (rs6664877) reached significance and influenced plasma levels of the corresponding protein, whereas SNPs in CLU did not influence clusterin levels. CONCLUSION Complement dysregulation is evident in AD and may contribute to pathology. AD-associated SNPs in CR1, C1S and CFH impact plasma levels of the encoded proteins, suggesting a mechanism for impact on disease risk.
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Affiliation(s)
- Aurora Veteleanu
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | | | - Samuel Keat
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | - Nikoleta Daskoulidou
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | - Henrik Zetterberg
- UK Dementia Research Institute at University College London, London, WC1E6BT UK
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Psychology, 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, WC1N3BG UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
| | - Amanda Heslegrave
- UK Dementia Research Institute at University College London, London, WC1E6BT UK
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, WC1N3BG UK
| | | | - Julie Williams
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | - Rebecca Sims
- Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, CF244HQ UK
| | - Wioleta M. Zelek
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | - Sarah M. Carpanini
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
| | - Bryan Paul Morgan
- UK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ UK
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10
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Trindade D, Cachide M, Soares Martins T, Guedes S, Rosa IM, da Cruz e Silva OA, Henriques AG. Monitoring clusterin and fibrillar structures in aging and dementia. Aging Brain 2023; 3:100080. [PMID: 37346145 PMCID: PMC10279921 DOI: 10.1016/j.nbas.2023.100080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/23/2023] Open
Abstract
Objective Clusterin is involved in a variety of physiological processes, including proteostasis. Several clusterin polymorphisms were associated with an increased risk of developing Alzheimer's disease, the world-leading cause of dementia. Herein, the effect of a clusterin polymorphism, aging and dementia in the levels of clusterin in human plasma were analysed in a primary care-based cohort, and the association of this chaperone with fibrillar structures discussed. Methods 64 individuals with dementia (CDR≥1) and 64 age- and sex-matched Controls from a Portuguese cohort were genotyped for CLU rs1136000 polymorphism, and the plasma levels of clusterin and fibrils were assessed. Results An increased prevalence of the CC genotype was observed for the dementia group, although no significant robustness was achieved. CLU rs11136000 SNP did not significantly change plasma clusterin levels in demented individuals. Instead, clusterin levels decreased with aging and even more in individuals with dementia. Importantly, plasma clusterin levels correlated with the presence of fibrillar structures in Control individuals, but not in those with dementia. Conclusion This study reveals a significant decrease in plasma clusterin in demented individuals with aging, which related to altered clusterin-fibrils dynamics. Potentially, plasma clusterin and its association with fibrillar structures can be used to monitor dementia progression along aging.
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Affiliation(s)
| | | | | | | | | | | | - Ana Gabriela Henriques
- Corresponding author at: Neuroscience and Signaling Group, Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal.
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11
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Zhou J, Singh N, Galske J, Hudobenko J, Hu X, Yan R. BACE1 regulates expression of Clusterin in astrocytes for enhancing clearance of β-amyloid peptides. Mol Neurodegener 2023; 18:31. [PMID: 37143090 PMCID: PMC10161466 DOI: 10.1186/s13024-023-00611-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/07/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Abnormal accumulation of amyloid beta peptide (Aβ) in the brain induces a cascade of pathological changes in Alzheimer's disease (AD), and inhibiting BACE1, which is required for Aβ generation, is therefore being explored for the treatment of AD by reducing Aβ accumulation. As Bace1 knockout mice exhibit increased number of reactive astrocytes and AD brains have reactive astrocytes that surround amyloid plaques, we investigated the role of BACE1 in astrocytes and determined whether BACE1 regulates astrocytic functions. METHODS We conducted unbiased single cell RNA-seq (scRNA-seq) using purified astrocytes from Bace1 KO mice and wild type control littermates. Similar scRNA-seq was also conducted using AD mice with conditional deletion of Bace1 in the adult stage (5xFAD;Bace1fl/fl;UBC-creER compared to 5xFAD;Bace1fl/fl controls). We compared the transcriptomes of astrocyte and reactive astrocyte clusters and identified several differentially expressed genes, which were further validated using Bace1 KO astrocyte cultures. Mice with astrocyte-specific Bace1 knockout in 5xFAD background were used to compare amyloid deposition. Mechanistic studies using cultured astrocytes were used to identify BACE1 substrates for changes in gene expression and signaling activity. RESULTS Among altered genes, Clusterin (Clu) and Cxcl14 were significantly upregulated and validated by measuring protein levels. Moreover, BACE1 deficiency enhanced both astrocytic Aβ uptake and degradation, and this effect was significantly attenuated by siRNA knockdown of Clu. Mechanistic study suggests that BACE1 deficiency abolishes cleavage of astrocytic insulin receptors (IR), and this may enhance expression of Clu and Cxcl14. Acutely isolated astrocytes from astrocyte-specific knockout of Bace1 mice (Bace1 fl/fl;Gfap-cre) show similar increases in CLU and IR. Furthermore, astrocyte-specific knockout of Bace1 in a 5xFAD background resulted in a significant attenuation in cortical Aβ plaque load through enhanced clearance. CONCLUSION Together, our study suggests that BACE1 in astrocytes regulates expression of Clu and Cxcl14, likely via the control of insulin receptor pathway, and inhibition of astrocytic BACE1 is a potential alternative strategy for enhancing Aβ clearance.
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Affiliation(s)
- John Zhou
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, 44195, United States
- Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, United States
| | - Neeraj Singh
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA
| | - James Galske
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA
| | - Jacob Hudobenko
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA
| | - Xiangyou Hu
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA
| | - Riqiang Yan
- Department of Neuroscience, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-3401, USA.
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12
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Tian Y, Xiao YH, Sun C, Liu B, Sun F. N6-Methyladenosine Methyltransferase METTL3 Alleviates Diabetes-Induced Testicular Damage through Modulating TUG1/ Clusterin Axis. Diabetes Metab J 2023; 47:287-300. [PMID: 36653890 PMCID: PMC10040629 DOI: 10.4093/dmj.2021.0306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 06/29/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The present study investigated the regulatory effects of N6-methyladenosine (m6A) methyltransferase like-3 (METTL3) in diabetes-induced testicular damage. METHODS In vivo diabetic mice and high glucose (HG) treated GC-1 spg cells were established. The mRNA and protein expressions were determined by real-time quantitative polymerase chain reaction, Western blot, immunofluorescence and immunohistochemistry staining. Levels of testosterone, blood glucose, cell viability, and apoptosis were detected by enzyme-linked immunosorbent assay, MTT, and flow cytometry, respectively. Molecular interactions were verified by RNA immunoprecipitation and RNA pull-down assay. Histopathological staining was performed to evaluate testicular injury. RESULTS METTL3 and long non-coding RNA taurine up-regulated 1 (lncRNA TUG1) were downregulated in testicular tissues of diabetic mice and HG-treated GC-1 spg cells. METTL3 overexpression could reduce the blood glucose level, oxidative stress and testicular damage but enhance testosterone secretion in diabetic mouse model and HG-stimulated GC-1 spg cells. Mechanically, METTL3-mediated m6A methylation enhanced the stability of TUG1, then stabilizing the clusterin mRNA via recruiting serine and arginine rich splicing factor 1. Moreover, inhibition of TUG1/clusterin signaling markedly reversed the protective impacts of METTL3 overexpression on HG-stimulated GC-1 spg cells. CONCLUSION This study demonstrated that METTL3 ameliorated diabetes-induced testicular damage by upregulating the TUG1/clusterin signaling. These data further elucidate the potential regulatory mechanisms of m6A modification on diabetes-induced testicular injury.
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Affiliation(s)
- Yuan Tian
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yue-Hai Xiao
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Chao Sun
- School of Clinical Medicine, Guizhou Medical University, Guiyang, China
| | - Bei Liu
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Fa Sun
- School of Clinical Medicine, Guizhou Medical University, Guiyang, China
- Corresponding author: Fa Sun https://orcid.org/0000-0002-0841-4668 School of Clinical Medicine, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, Guizhou Province, China E-mail:
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13
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Padhy B, Kapuganti RS, Hayat B, Mohanty PP, Alone DP. Wide-spread enhancer effect of SNP rs2279590 on regulating epoxide hydrolase-2 and protein tyrosine kinase 2-beta gene expression. Gene 2023; 854:147096. [PMID: 36470481 DOI: 10.1016/j.gene.2022.147096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/20/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Polymorphisms in the PTK2B-CLU locus have been associated with various neurodegenerative disorders including pseudoexfoliation glaucoma, Alzheimer's and Parkinson's. Many of these genomic variants are within enhancer elements and modulate genes associated with the disease pathogenesis. However, mechanisms by which they control the gene expression is unknown. Previously, we have shown that clusterin enhancer element surrounding rs2279590 intronic variant, a risk factor in the pathogenesis of pseudoexfoliation glaucoma modulates gene expression of clusterin (CLU), protein tyrosine kinase 2 beta (PTK2B) and epoxide hydrolase 2 (EPHX2). Here, we explored the mechanism by which rs2279590 enhancer regulates their gene expression through chromosome conformation capture assays. 3C assays revealed a strong enhancer-promoter chromatin interaction between rs2279590 enhancer and promoters of genes CLU, PTK2B and EPHX2 in the HEK293 wild type cells. Moreover, genomic knockout of rs2279590 element significantly decreases the chromatin-chromatin cross-linking frequency suggesting gene regulation at transcriptional level through formation of chromatin loop. In addition, molecular assays showed a significantly decreased expression of EPHX2 but not PTK2B at both mRNA and protein level in the lens capsule of pseudoexfoliation affected patients in comparison to control subjects implying a role of EPHX2 in the pathogenesis of pseudoexfoliation.
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Affiliation(s)
- Biswajit Padhy
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Ramani Shyam Kapuganti
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Bushra Hayat
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | | | - Debasmita Pankaj Alone
- School of Biological Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, P.O. Bhimpur-Padanpur, Jatni, Khurda, Odisha 752050, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India.
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14
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Gouveia M, Teixeira M, Schmidt C, Lopes M, Trindade D, Magalhães S, Henriques AG, Nunes A, Santos M, Vieira S, Ribeiro F. Impaired Extracellular Proteostasis in Patients with Heart Failure. Arch Med Res 2023:S0188-4409(23)00017-6. [PMID: 36797157 DOI: 10.1016/j.arcmed.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 01/11/2023] [Accepted: 02/02/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND Proteostasis impairment and the consequent increase of amyloid burden in the myocardium have been associated with heart failure (HF) development and poor prognosis. A better knowledge of the protein aggregation process in biofluids could assist the development and monitoring of tailored interventions. AIM To compare the proteostasis status and protein's secondary structures in plasma samples of patients with HF with preserved ejection fraction (HFpEF), patients with HF with reduced ejection fraction (HFrEF), and age-matched individuals. METHODS A total of 42 participants were enrolled in 3 groups: 14 patients with HFpEF, 14 patients with HFrEF, and 14 age-matched individuals. Proteostasis-related markers were analyzed by immunoblotting techniques. Fourier Transform Infrared (FTIR) Spectroscopy in Attenuated Total Reflectance (ATR) was applied to assess changes in the protein's conformational profile. RESULTS Patients with HFrEF showed an elevated concentration of oligomeric proteic species and reduced clusterin levels. ATR-FTIR spectroscopy coupled with multivariate analysis allowed the discrimination of HF patients from age-matched individuals in the protein amide I absorption region (1700-1600 cm-1), reflecting changes in protein conformation, with a sensitivity of 73 and a specificity of 81%. Further analysis of FTIR spectra showed significantly reduced random coils levels in both HF phenotypes. Also, compared to the age-matched group, the levels of structures related to fibril formation were significantly increased in patients with HFrEF, whereas the β-turns were significantly increased in patients with HFpEF. CONCLUSION Both HF phenotypes showed a compromised extracellular proteostasis and different protein conformational changes, suggesting a less efficient protein quality control system.
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15
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Das L, Shekhar S, Chandrani P, Varma AK. In silico structural analysis of secretory clusterin to assess pathogenicity of mutations identified in the evolutionarily conserved regions. J Biomol Struct Dyn 2023; 41:469-478. [PMID: 34821197 DOI: 10.1080/07391102.2021.2007791] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Clusterin (CLU) is a secreted glycoprotein, heterodimeric in nature, and is expressed in a wide variety of tissues and body fluids such as serum and plasma. CLU has also been known to be a promising biomarker for cell death, malignancy, cancer progression, and resistance development. However, the lack of a CLU crystal structure obstructs understanding the possible role of reported mutations on the structure, and the subsequent effects on downstream signaling pathways and cancer progression. Considering the importance of crystal structure, a model structure of the pre-secretory isoform of CLU was built to predict the effect of mutations at the molecular level. Ab initio model was built using RaptorX, and loop refinement and energy minimization were carried out with ModLoop, ModRefiner, and GalaxyWeb servers. The cancer associated mutational spectra of CLU was retrieved from the cBioPortal server and 117 unique missense mutations were identified. Evolutionarily conserved regions and pathogenicity of mutations identified in CLU were analyzed using ConSurf and Rhapsody, respectively. Furthermore, sequence and structure-based mutational analysis were carried out with iSTABLE, DynaMut and PremPS servers. Molecular dynamics simulations were carried out with GROMACS for 50 ns to determine the stability of the wild type and mutant protein structures. A dynamically stable model structure of pre-secretory CLU (psCLU) which has high concurrence with the sequence based secondary structure predictions has been explored. Changes in the intra-atomic interactions and folding pattern between wild type and mutant structures were observed. To our conclusion, eleven mutations with the highest structural and functional significance have been predicted to have pathogenic and deleterious effects.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Lipi Das
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Shashank Shekhar
- Supercomputing Facility for Bioinformatics & Computational Biology, Indian Institute of Technology, New Delhi, India
| | - Pratik Chandrani
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India.,Medical Oncology Molecular Lab, Tata Memorial Hospital, Mumbai, India
| | - Ashok K Varma
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
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16
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Amada K, Hijiya N, Ikarimoto S, Yanagihara K, Hanada T, Hidano S, Kurogi S, Tsukamoto Y, Nakada C, Kinoshita K, Hirashita Y, Uchida T, Shin T, Yada K, Hirashita T, Kobayashi T, Murakami K, Inomata M, Shirao K, Aoki M, Takekawa M, Moriyama M. Involvement of clusterin expression in the refractory response of pancreatic cancer cells to a MEK inhibitor. Cancer Sci 2023; 114:2189-2202. [PMID: 36694355 PMCID: PMC10154874 DOI: 10.1111/cas.15735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
Constitutive activation of the mitogen-activated protein kinase (MAPK) signaling pathway is essential for tumorigenesis of pancreatic ductal adenocarcinoma (PDAC). To date, however, almost all clinical trials of inhibitor targeting this pathway have failed to improve the outcome of patients with PDAC. We found that implanted MIA Paca2, a human PDAC cell line sensitive to a MAPK inhibitor, PD0325901, became refractory within a week after treatment. By comparing the expression profiles of MIA Paca2 before and after acquisition of the refractoriness to PD0325901, we identified clusterin (CLU) as a candidate gene involved. CLU was shown to be induced immediately after treatment with PD0325901 or expressed primarily in more than half of PDAC cell lines, enhancing cell viability by escaping from apoptosis. A combination of PD0325901 and CLU downregulation was found to synergistically or additively reduce the proliferation of PDAC cells. In surgically resected PDAC tissues, overexpression of CLU in cancer cells was observed immunohistochemically in approximately half of the cases studied. Collectively, our findings highlight the mechanisms responsible for the rapid refractory response to MEK inhibitor in PDAC cells, suggesting a novel therapeutic strategy that could be applicable to patients with PDAC using inhibitor targeting the MAPK signaling pathway and CLU.
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Affiliation(s)
- Kohei Amada
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan.,Department of Medical Oncology and Hematology, Faculty of Medicine, Oita University, Oita, Japan
| | - Naoki Hijiya
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan
| | - Sawa Ikarimoto
- Department of Plastic Surgery, Kagoshima City Hospital, Kagoshima, Japan
| | - Kazuyoshi Yanagihara
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Toshikatsu Hanada
- Department of Cell Biology, Faculty of Medicine, Oita University, Oita, Japan
| | - Shinya Hidano
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita, Japan.,Department of Immune Regulation, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
| | - Shusaku Kurogi
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan
| | - Yoshiyuki Tsukamoto
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan
| | - Chisato Nakada
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan.,Department of Urology, Faculty of Medicine, Oita University, Oita, Japan
| | - Keisuke Kinoshita
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan.,Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Yuka Hirashita
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan.,Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Tomohisa Uchida
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan.,Department of Forensic Medicine, Faculty of Medicine, Oita University, Oita, Japan
| | - Toshitaka Shin
- Department of Urology, Faculty of Medicine, Oita University, Oita, Japan
| | - Kazuhiro Yada
- Department of Gastroenterological and Pediatric Surgery, Faculty of Medicine, Oita University, Oita, Japan
| | - Teijiro Hirashita
- Department of Gastroenterological and Pediatric Surgery, Faculty of Medicine, Oita University, Oita, Japan
| | - Takashi Kobayashi
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita, Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Masafumi Inomata
- Department of Gastroenterological and Pediatric Surgery, Faculty of Medicine, Oita University, Oita, Japan
| | - Kuniaki Shirao
- Department of Medical Oncology and Hematology, Faculty of Medicine, Oita University, Oita, Japan
| | - Masahiro Aoki
- Division of Pathophysiology, Aichi Cancer Center, Aichi, Japan
| | - Mutsuhiro Takekawa
- Division of Cell Signaling and Molecular Medicine, Institute of Medical Sciences, University of Tokyo, Tokyo, Japan
| | - Masatsugu Moriyama
- Department of Molecular Pathology, Faculty of Medicine, Oita University, Oita, Japan
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17
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Liu S, Tang S, Yang G, Li Q. Lysine Demethylase 1B Promotes Tear Secretion Disorder in Sjogren's Syndrome by Regulating the PAX6/CLU Axis. J Mol Neurosci 2023; 73:28-38. [PMID: 36542318 DOI: 10.1007/s12031-022-02094-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
The impacts of lysine demethylase 1B (KDM1B) have been probed in multiple diseases, but the effects of KDM1B on SS remained obscure. The study aimed to unravel the efficiency of KDM1B on SS progression via the paired box 6 (PAX6)/clusterin (CLU) axis. NODB10. H2b mice were selected to establish the SS model. KDM1B, Pax6, and CLU expression in SS mice was assessed. Adeno-associated viruses carrying KDM1B, Pax6, and CLU were injected into the SS mice to detect tear secretion, epithelium corneal fluorescein staining scores, and levels of specific markers of lacrimal gland epithelial cells, neurotransmitter receptors that induce secretion from the lacrimal gland, and genes encoding normal tear components. The relation among KDM1B, Pax6, and CLU was examined. The rescue experiments were conducted for verifying the interaction among KDM1B, Pax6, and CLU. KDM1B expression was elevated, while Pax6 and CLU levels were decreased in the lacrimal gland tissues of SS mouse models. KDM1B decrement and Pax6 augmentation improved tear secretion, reduced corneal fluorescein staining score, decreased levels of specific markers of lacrimal gland epithelial cells, and increased levels of neurotransmitter receptors that induce secretion from the lacrimal gland and genes encoding normal tear components. KDM1D suppressed Pax6 expression by mediating H3K4me2 demethylation. Pax6 promoted the expression of CLU at the transcriptional level by binding to the CLU promoter. Silencing of Pax6 or CLU could reverse the effects of KDM1B reduction on improving the tear secretion disorder of SS mice. Silencing KDM1B mitigates the tear secretion disorder of SS mice via modulating the Pax6/CLU axis.
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Affiliation(s)
- Shuang Liu
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, 100096, China.
| | - Shaohua Tang
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, 100096, China
| | - Guang Yang
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, 100096, China
| | - Qingnan Li
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, 100096, China
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Li Y, Jin M, Yin X, Zhou B, Ni H. Effects of leptin treatment immediately after neonatal seizures on serum clusterin and VEGF levels and brain oxidative stress-related proteins and neurobehavioral phenotypes. Epilepsy Behav 2023; 138:109016. [PMID: 36473302 DOI: 10.1016/j.yebeh.2022.109016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
The developing infant brain has a different response mechanism and repair potential for injury than the adult brain. There is an urgent need for new anticonvulsants to effectively control neonatal seizures while minimizing the drug's toxic damage to the developing brain. Leptin protects neuronal plasma membrane integrity, while it has clinical advantages in terms of anticonvulsant properties as well. This study aimed to evaluate the effect of immediate leptin treatment on the serum concentration of clusterin and vascular endothelial growth factor (VEGF), neuronal plasma membrane integrity-related proteins, and the neurobehavioral phenotypes following neonatal seizures. Leptin was injected i.p at a dose of 4 mg/kg 1 hour after daily 30 minutes prolonged seizures for consecutive 10 days. The serum biomarkers (clusterin and VEGF), and brain protein expression of ATF-4/GRP78/autophagy axis were measured by enzyme-linked immunosorbent assay and western blot in the acute phase (24 hours after the last seizures), respectively. Behavioral and histopathological phenotypes and seizure threshold were conducted from P23 to P34, respectively. There were rapid elevation of serum VEGF and clusterin as well as upregulated protein expression of ATF-4, GRP78, Beclin-1, and LC3 in the cerebral cortex and hippocampus following a neonatal seizure, which was restored by immediate treatment with leptin after seizures. In addition, leptin improved seizure-induced impaired neuropsychological, and cognitive functioning. Furthermore, leptin succeeded in ameliorating markers of neuronal excitability, including seizure threshold and hippocampal mossy fiber sprouting. In conclusion, this study verified that immediate treatment with leptin after neonatal seizures restored both rapid elevation of serum clusterin as well as upregulated protein expression of ATF-4/GRP78/autophagy axis in the cerebral cortex and hippocampus, which contributes to the recovery of neurological function.
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Affiliation(s)
- Yachao Li
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China; Department of Pediatrics, The First People's Hospital, Pingdingshan, Henan Province, China
| | - Meifang Jin
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Xiaoping Yin
- Department of Pediatrics, Taixing People's Hospital, Taizhou, Jiangsu Province, China
| | - Baojian Zhou
- Department of Pediatrics, Taixing People's Hospital, Taizhou, Jiangsu Province, China
| | - Hong Ni
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China.
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Zheng M, Lee EJ, Jeong S, Craft CM. Gene Expression of Clusterin, Tissue Inhibitor of Metalloproteinase-1, and Their Receptors in Retinal Pigment Epithelial Cells and Müller Glial Cells Is Modulated by Inflammatory Stresses. Adv Exp Med Biol 2023; 1415:215-219. [PMID: 37440036 DOI: 10.1007/978-3-031-27681-1_31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Balanced activities of matrix metalloproteinases (MMPs) and their inhibitors are essential for photoreceptor (PR) cell survival. PR rod cell survival in rodent models of inherited retinitis pigmentosa (RP) is prolonged by recombinant tissue inhibitor of metalloproteinase (TIMP)-1 or clusterin (CLU) proteins. Retinal pigment epithelial cells (RPE) and Müller glia (MG) cells support PR cells. In human RPE and MG cell lines, we measured their mRNA levels of the two genes with quantitative real-time PCR (qRT-PCR) with interleukin (IL)-1β treatment, a key pathological component in retinal degeneration. Endogenous CLU gene expression was significantly downregulated by IL-1β in both cell types, whereas TIMP-1 expression was upregulated in MG cells, suggesting the transcriptional control of CLU is potentially more sensitive to inflammatory conditions. The expression levels of CLU endocytic receptors revealed that the low-density lipoprotein receptor-related protein 2 (LRP2) was upregulated only in MG cells by the treatment with no detectable change in RPE cells. Like LRP2, IL-1β upregulated TIMP-1 receptor LRP1 expression in MG cells; however, it was decreased in the expression of RPE cells. These data suggest that the gene expression of CLU and TIMP-1 and their receptors may be dynamically modulated in inflammatory conditions.
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Affiliation(s)
- Mengmei Zheng
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Eun-Jin Lee
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
- Department of Ophthalmology, Stanford University, Palo Alto, CA, USA
| | - Shinwu Jeong
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Cheryl Mae Craft
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA.
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Happonen LJ. Affinity-Purification Combined with Crosslinking Mass Spectrometry for Identification and Structural Modeling of Host-Pathogen Protein-Protein Complexes. Methods Mol Biol 2023; 2674:181-200. [PMID: 37258968 DOI: 10.1007/978-1-0716-3243-7_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Host-pathogen protein-protein interactions are highly complex and dynamic and mediate key steps in pathogen adhesion to host, host invasion, and colonization as well as immune evasion. In bacteria, these interactions most often involve specialized virulence factors or effector proteins that specifically target central host proteins. Here, I present a mass spectrometry-based proteomics approach starting with the identification of host-pathogen interactions by affinity-purification followed by mapping the specific host-pathogen protein-protein interaction interfaces by crosslinking mass spectrometry and structural modeling of the complexes.
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Affiliation(s)
- Lotta J Happonen
- Department of Clinical Sciences Lund, Division of Infection Medicine, Lund University, Lund, Sweden.
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21
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Tang L, Wang ZB, Ma LZ, Cao XP, Tan L, Tan MS. Dynamic changes of CSF clusterin levels across the Alzheimer's disease continuum. BMC Neurol 2022; 22:508. [PMID: 36581903 PMCID: PMC9801612 DOI: 10.1186/s12883-022-03038-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/19/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Clusterin is a multifunctional protein, which is associated with the pathogenesis and the development of Alzheimer's disease (AD). Compared with normal controls, inconsistent results have yielded in previous studies for concentration of cerebrospinal fluid (CSF) clusterin in AD patients. We explored CSF clusterin levels in different pathological processes of AD. METHODS Following the National Institute on Aging-Alzheimer's Association (NIA-AA) criteria, we employed on the levels of CSF Aβ42(A), phosphorylated-Tau (T), and total-tau (N). Based on previously published cutoffs and the close correlation between CSF p-tau and t-tau, 276 participants from the publicly available ADNI database with CSF biomarkers were divided into four groups: A-(TN)- (normal Aβ42 and normal p-tau and t-tau; n = 50), A+(TN)- (abnormal Aβ42 and normal p-tau and t-tau; n = 39), A+(TN) + (abnormal Aβ42 and abnormal p-tau or t-tau; n = 147), A-(TN) + (normal Aβ42 and abnormal p-tau or t-tau; n = 40). To assess CSF clusterin levels in AD continuum, intergroup differences in four groups were compared. Pairwise comparisons were conducted as appropriate followed by Bonferroni post hoc analyses. To further study the relationships between CSF clusterin levels and AD core pathological biomarkers, we employed multiple linear regression method in subgroups. RESULTS Compared with the A-(TN)- group, CSF clusterin levels were decreased in A+ (TN)- group (P = 0.002 after Bonferroni correction), but increased in the A+(TN) + group and the A-(TN) + group (both P < 0.001 after Bonferroni correction). Moreover, we found CSF clusterin levels are positively associated with CSF Aβ42 (β = 0.040, P < 0. 001), CSF p-tau (β = 0.325, P < 0.001) and CSF t-tau (β = 0.346, P < 0.001). CONCLUSIONS Our results indicated that there are differences levels of CSF clusterin in different stages of AD pathology. The CSF clusterin level decreased at the early stage are related to abnormal Aβ pathology; and the increased levels are associated with tau pathology and neurodegeneration.
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Affiliation(s)
- Lian Tang
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Zhi-Bo Wang
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ling-Zhi Ma
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xi-Peng Cao
- grid.410645.20000 0001 0455 0905Clinical Research Center, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Lan Tan
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Meng-Shan Tan
- grid.410645.20000 0001 0455 0905Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
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Nathani S, Mishra R, Katiyar P, Sircar D, Roy P. Zinc Acts Synergistically with Berberine for Enhancing Its Efficacy as an Anti-cancer Agent by Inducing Clusterin-Dependent Apoptosis in HT-29 Colorectal Cancer Cells. Biol Trace Elem Res 2022:10.1007/s12011-022-03460-8. [PMID: 36394793 DOI: 10.1007/s12011-022-03460-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/22/2022] [Indexed: 11/18/2022]
Abstract
It is now widely accepted that anti-cancer medications are most effective when administered in combination. Zinc is an essential micronutrient whilst berberine is a well-known natural phytochemical, both having multiple molecular mechanisms of action. The present study aimed to determine the combinatorial effect of zinc and berberine on the human adenocarcinoma HT-29 cancer cell line. The anti-proliferative activity of berberine and zinc was determined by cell viability and colony-forming assays. The combination index and drug reduction index values of zinc and berberine co-treatments were estimated by suitable software. Flow cytometry was used to analyse cell cycle distribution and Annexin V/PI staining. The expression of apoptosis and zinc signalling markers were analysed by RT-qPCR and immunoblot analysis. Berberine decreased the viability of colon cancer cells in a dose-dependent manner whilst zinc alone had no significant influence on it. However, zinc and berberine co-treatment resulted in a synergistic anti-cancer action which was demonstrated by G2/M phase arrest of cell growth at a lower dose of berberine. Annexin V assay demonstrated that the synergistic impact of zinc and berberine boosted the number of apoptotic cells. Gene expression analysis at both transcriptional and translational levels showed the upregulation of apoptotic (caspase-3 and caspase-8) and a zinc-sensing receptor (GPR39) gene with concomitant downregulation of anti-apoptotic genes like proliferating cell nuclear antigen (PCNA) and clusterin. Our findings showed that the combination of zinc and berberine has synergistic anti-cancer efficacy and thus could be used as a potential chemopreventive option for colon cancer.
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Affiliation(s)
- Sandip Nathani
- Molecular Endocrinology Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Rutusmita Mishra
- Molecular Endocrinology Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Parul Katiyar
- Molecular Endocrinology Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Debabrata Sircar
- Plant Molecular Biology Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Partha Roy
- Molecular Endocrinology Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India.
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Martens GA, Geßner C, Osterhof C, Hankeln T, Burmester T. Transcriptomes of Clusterin- and S100B-transfected neuronal cells elucidate protective mechanisms against hypoxia and oxidative stress in the hooded seal (Cystophora cristata) brain. BMC Neurosci 2022; 23:59. [PMID: 36243678 PMCID: PMC9571494 DOI: 10.1186/s12868-022-00744-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The hooded seal (Cystophora cristata) exhibits impressive diving skills and can tolerate extended durations of asphyxia, hypoxia and oxidative stress, without suffering from irreversible neuronal damage. Thus, when exposed to hypoxia in vitro, neurons of fresh cortical and hippocampal tissue from hooded seals maintained their membrane potential 4-5 times longer than neurons of mice. We aimed to identify the molecular mechanisms underlying the intrinsic neuronal hypoxia tolerance. Previous comparative transcriptomics of the visual cortex have revealed that S100B and clusterin (apolipoprotein J), two stress proteins that are involved in neurological disorders characterized by hypoxic conditions, have a remarkably high expression in hooded seals compared to ferrets. When overexpressed in murine neuronal cells (HN33), S100B and clusterin had neuroprotective effects when cells were exposed to hypoxia. However, their specific roles in hypoxia have remained largely unknown. METHODS In order to shed light on potential molecular pathways or interaction partners, we exposed HN33 cells transfected with either S100B, soluble clusterin (sCLU) or nuclear clusterin (nCLU) to normoxia, hypoxia and oxidative stress for 24 h. We then determined cell viability and compared the transcriptomes of transfected cells to control cells. Potential pathways and upstream regulators were identified via Gene Ontology (GO) and Ingenuity Pathway Analysis (IPA). RESULTS HN33 cells transfected with sCLU and S100B demonstrated improved glycolytic capacity and reduced aerobic respiration at normoxic conditions. Additionally, sCLU appeared to enhance pathways for cellular homeostasis to counteract stress-induced aggregation of proteins. S100B-transfected cells sustained lowered energy-intensive synaptic signaling. In response to hypoxia, hypoxia-inducible factor (HIF) pathways were considerably elevated in nCLU- and sCLU-transfected cells. In a previous study, S100B and sCLU decreased the amount of reactive oxygen species and lipid peroxidation in HN33 cells in response to oxidative stress, but in the present study, these functional effects were not mirrored in gene expression changes. CONCLUSIONS sCLU and S100B overexpression increased neuronal survival by decreasing aerobic metabolism and synaptic signaling in advance to hypoxia and oxidative stress conditions, possibly to reduce energy expenditure and the build-up of deleterious reactive oxygen species (ROS). Thus, a high expression of CLU isoforms and S100B is likely beneficial during hypoxic conditions.
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Affiliation(s)
- Gerrit A Martens
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany.
| | - Cornelia Geßner
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany
| | - Carina Osterhof
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis, Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Thomas Hankeln
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis, Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Thorsten Burmester
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany
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24
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Ma Y, Li S, Tang S, Ye S, Liang N, Liang Y, Xiao F. Clusterin protects against Cr(VI)-induced oxidative stress-associated hepatotoxicity by mediating the Akt-Keap1-Nrf2 signaling pathway. Environ Sci Pollut Res Int 2022; 29:52289-52301. [PMID: 35257348 DOI: 10.1007/s11356-022-19118-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Hexavalent chromium [Cr(VI)] is a serious environmental pollutant that threatens human life. Cr(VI) is widely used in industrial processes such as metallurgy, leather processing, and electroplating, which can enter the human body through the respiratory or digestive tracts, thus causing a number of human disease, including inflammation and cancer. Although it has been confirmed that oxidative stress is one of the primary mechanism of liver injury caused by Cr(VI) exposure, the related toxic target and effective intervention measures have not been found. Clusterin (CLU) is an acute phase response protein with cytoprotective and apoptosis-delaying effects, and its expression has been confirmed to increase significantly after exposure to Cr(VI). In this study, our data clearly indicates that Cr(VI) is capable of causing hepatocytes damage through the production of large amounts of reactive oxygen species (ROS), causing an increase in aspartate aminotransferase (AST) and alanine aminotransferase (ALT). In contrast, over expression of CLU was able to inhibit ROS production and alleviate Cr(VI)-induced liver injury. The specific mechanisms are that CLU acts on the protein kinase B (PKB/Akt)-Kelch-like ECH-associated protein 1 (Keap1)-nuclear factor E2-related factor 2 (Nrf2) signaling pathway to release Nrf2 into the nucleus. This is to initiate the expression of a downstream protein, heme oxygenase 1 (HO-1), thereby attenuating the ubiquitination ability of Keap1 with Nrf2. We also demonstrated that CLU could affect oxidative stress through the Akt/Nrf2 pathway, which reduced the production of ROS induced by Cr(VI) and protected against Cr(VI)-induced oxidative stress-associated hepatotoxicity. This study demonstrates a mechanism of Cr(VI)-induced hepatotoxicity and indicates that CLU as an intervention target of oxidative stress can provide valuable experimental basis for the prevention and treatment of occupational diseases in Cr(VI)-exposed population. Under the state of Cr(VI)-induced oxidative stress, CLU though phosphorylation Akt, leading to Nrf2 dissociation from Keap1. Activated Nrf2 entered the nucleus and formed the next step, thus binding to the structure of the antioxidant response element ARE, which activated HO-1, resulting in the decrease in intracellular ROS.
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Affiliation(s)
- Yu Ma
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Siwen Li
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Sixuan Tang
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Shuzi Ye
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Ningjuan Liang
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Yuehui Liang
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China
| | - Fang Xiao
- Xiangya School of Public Health, Central South University, Kaifu District, NO.238 Shangmayuanling Road, Changsha, Hunan, 410078, People's Republic of China.
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Razia R, Majeed F, Amin R, Mukhtar S, Mehmood K, Baig DN. The analysis of dynamic gene expression patterns in peripheral blood of multiple sclerosis patients indicates possible diagnostic and prognostic biomarkers. Mol Immunol 2022; 147:147-156. [PMID: 35594733 DOI: 10.1016/j.molimm.2022.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/08/2022] [Accepted: 05/09/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Among numerous invasive procedures for the research of biomarkers, blood-based indicators are regarded as marginally non-invasive procedures in the diagnosis and prognosis of demyelinating disorders, including multiple sclerosis (MS). In this study, we looked into the blood-derived gene expression profiles of patients with multiple sclerosis to investigate their clinical traits and linked them with dysregulated gene expressions to establish diagnostic and prognostic indicators. METHODS We included 51 patients with relapsing-remitting MS (RRMS, n = 31), clinically isolated syndrome (CIS, n = 12), primary progressive MS (PPMS, n = 8) and a control group (n = 51). Using correlational analysis, the transcriptional patterns of chosen gene panels were examined and subsequently related with disease duration and the expanded disease disability score (EDSS). In addition, principal component analysis, univariate regression, and logistic regression analysis were employed to highlight distinct profiles of genes and prognosticate the excellent biomarkers of this illness. RESULTS Our findings demonstrated that neurofilament light (NEFL), tumor necrosis factor α (TNF-α), Tau, and clusterin (CLU) were revealed to be increased in recruited patients, whereas the presenilin-1 (PSEN1) and cell-surface glycoprotein-44 (CD44) were downregulated. Principal Component Analysis revealed distinct patterns between the MS and control groups. Correlation analysis indicated co-dependent dysregulated genes and their differential expression with clinical findings. Furthermore, logistic regression demonstrated that Clusterin (AUC=0.940), NEFL (AUC=0.775), TNF-α (AUC=0.817), Tau (AUC=0.749), PSEN1 (AUC=0.6913), and CD44 (AUC=0.832) had diagnostic relevance. Following the univariate linear regression, a significant regression equation was found between EDSS and IGF-1 (R2 adj = 0.10844; p= 0.0060), APP (R2 adj = 0.1107; p= 0.0098), and PSEN1 (R2 adj = 0.1266; p=0.0102). CONCLUSION This study exhibits dynamic gene expression patterns that represent the significance of specified genes that are prospective diagnostic and prognostic biomarkers for multiple sclerosis.
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Affiliation(s)
- Rabat Razia
- School of Life Sciences, Forman Christian College (A Chartered University), Lahore 54600, Pakistan.
| | | | - Rehab Amin
- School of Life Sciences, Forman Christian College (A Chartered University), Lahore 54600, Pakistan.
| | - Shahid Mukhtar
- Punjab Institute of Neurosciences, Ferozpur Road, Lahore 54000, Punjab
| | - Khalid Mehmood
- Punjab Institute of Neurosciences, Ferozpur Road, Lahore 54000, Punjab
| | - Deeba Noreen Baig
- School of Life Sciences, Forman Christian College (A Chartered University), Lahore 54600, Pakistan.
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Huang S, Li X, Gu W, Li X, Zhao J, Wu J, Cai J, Feng X, Tao T. Cytoplasmic Clusterin Suppresses Lung Cancer Metastasis by Inhibiting the ROCK1-ERK Axis. Cancers (Basel) 2022; 14:2463. [PMID: 35626071 DOI: 10.3390/cancers14102463] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/04/2022] [Accepted: 05/10/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary We show that CLU, especially cytoplasmic precursor CLU, is downregulated in lung cancer and correlates with poor survival. The silencing of CLU promotes lung cancer cell migration and invasion, while the overexpression of CLU potently inhibits these phenomena. Interestingly, secretory CLU proteins are slightly decreased in lung cancer tissue and fail to exert similar anti-metastatic effects like cytoplasmic precursor CLU, demonstrating that cytoplasmic precursor CLU is the primary functional isoform of CLU, which exerts the anti-metastatic effects of lung cancer. Mechanistically, cytoplasmic precursor CLU binds ROCK1 to decrease phosphorylation of ERK1/2 by inhibiting the kinase activity of ROCK1, leading to an anti-metastatic effect in lung cancer cells. These findings reveal a novel insight into the function and regulation of cytoplasmic CLU in lung cancer, which might be a potential target for the diagnosis and treatment of metastatic lung cancer. Abstract Clusterin (CLU) is a heterodimeric glycoprotein that has been detected in diverse human tissues and implicated in many cellular processes. Accumulating evidence indicates that the expression of secreted CLU correlates with the progression of cancers. However, the molecular mechanisms underlying its tumor-suppressive roles are incompletely uncovered. In this study, we demonstrate that precursor CLU is widely downregulated in lung cancer tissue, in which secretory CLU proteins are slightly decreased. Impressively, overexpressing CLU potently inhibits the migration, invasion and metastasis of lung cancer cells, whereas silencing CLU promotes this behavior; however, it appears that secretory CLU fails to exert similar anti-metastatic effects. Interestingly, the cytoplasmic precursor CLU binds ROCK1 to abrogate the interaction between ROCK1 and ERK and impair ERK activity, leading to the suppression of lung cancer invasiveness. Meanwhile, the expression of CLU was remarkably diminished in lung cancer bone metastasis loci when compared with subcutaneous tumors in the mouse model and hardly detected in the bone metastasis loci of lung cancer patients when compared with the primary. These findings reveal a novel insight into the function and regulation of cytoplasmic CLU in lung cancer, which might be a potential target for the diagnosis and treatment of metastatic lung cancer.
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Yuste-Checa P, Bracher A, Hartl FU. The chaperone Clusterin in neurodegeneration-friend or foe? Bioessays 2022; 44:e2100287. [PMID: 35521968 DOI: 10.1002/bies.202100287] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 12/30/2022]
Abstract
Fibrillar protein aggregates are the pathological hallmark of a group of age-dependent neurodegenerative conditions, including Alzheimer's and Parkinson's disease. Aggregates of the microtubule-associated protein Tau are observed in Alzheimer's disease and primary tauopathies. Tau pathology propagates from cell to cell in a prion-like process that is likely subject to modulation by extracellular chaperones such as Clusterin. We recently reported that Clusterin delayed Tau fibril formation but enhanced the activity of Tau oligomers to seed aggregation of endogenous Tau in a cellular model. In contrast, Clusterin inhibited the propagation of α-Synuclein aggregates associated with Parkinson's disease. These findings raise the possibility of a mechanistic link between Clusterin upregulation observed in Alzheimer's disease and the progression of Tau pathology. Here we review the diverse functions of Clusterin in the pathogenesis of neurodegenerative diseases, focusing on evidence that Clusterin may act either as a suppressor or enhancer of pathology.
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Affiliation(s)
- Patricia Yuste-Checa
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Martinsried, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.,Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, Maryland, USA
| | - Andreas Bracher
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - F Ulrich Hartl
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Martinsried, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.,Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, Maryland, USA
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28
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Wijerathna HMSM, Nadarajapillai K, Udayantha HMV, Kasthuriarachchi TDW, Shanaka KASN, Kwon H, Wan Q, Lee J. Molecular delineation, expression profiling, immune response, and anti-apoptotic function of a novel clusterin homolog from big-belly seahorse (Hippocampus abdominalis). Fish Shellfish Immunol 2022; 124:289-299. [PMID: 35430349 DOI: 10.1016/j.fsi.2022.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/11/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Clusterin (CLU) is a glycoprotein that contains α- and β-chains. CLU exerts multifunctional activities and plays a role in different cell signaling pathways that are associated with various diseases such as proteotoxic and oxidative stress, as well as cell death and survival. However, its role in marine teleost fish remains unclear. Therefore, the present study was carried out to characterize and investigate the immune responses and anti-apoptotic effects of CLU of the big-belly seahorse (Hippocampus abdominalis) (HaCLU) on oxidative stress-induced cell death. The HaCLU open reading frame was 1389 bp long and encoded a protein with 462 amino acids, a molecular weight of 51.28 kDa and an isoelectric point of 5.41. In-silico results demonstrated that HaCLU has a signal peptide in the 1-29 amino acid region, while the α- and β-chains were in the 34-227 and 228-455 amino acid regions, respectively. Multiple sequence alignment clarified the low homology of the α-chain with other orthologs. The highest HaCLU mRNA expression level was observed in the liver, followed by the heart, spleen, and brain tissues of healthy big-belly seahorses. Further, HaCLU mRNA expression level was elevated in the liver in response to different stimuli, including lipopolysaccharides, polyinosinic:polycytidylic acid, Edwardsiella tarda, and Streptococcus iniae. HaCLU potentiates cell viability and weakens chromatin condensation in the nucleus of FHM cells following H2O2-induced oxidative stress and subsequent cell death. HaCLU overexpression resulted in a reduced Bax/Bcl-2 mRNA expression ratio. This study revealed the role of HaCLU in immune regulation against pathogenic infections and its anti-apoptotic effects on oxidative stress-induced cell death.
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Affiliation(s)
- H M S M Wijerathna
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - Kishanthini Nadarajapillai
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - H M V Udayantha
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - T D W Kasthuriarachchi
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - K A S N Shanaka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - Hyukjae Kwon
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju, 63333, Republic of Korea
| | - Qiang Wan
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju, 63333, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju, 63333, Republic of Korea.
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Weng X, Li J, Guan Q, Zhao H, Wang Z, Gleave ME, Nguan CY, Du C. The functions of clusterin in renal mesenchymal stromal cells: Promotion of cell growth and regulation of macrophage activation. Exp Cell Res 2022; 413:113081. [PMID: 35218723 DOI: 10.1016/j.yexcr.2022.113081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/31/2022] [Accepted: 02/15/2022] [Indexed: 12/24/2022]
Abstract
Clusterin (CLU) increases resistance to renal ischemia-reperfusion injury and promotes renal tissue repair. However, the mechanisms underlying of the renal protection of CLU remain unknown. Mesenchymal stromal cells (MSCs) may contribute to kidney cell turnover and injury repair. This study investigated the in vitro functions of CLU in kidney mesenchymal stromal cells (KMSCs). KMSCs were grown in plastic culture plates. Cell surface markers, apoptosis and phagocytosis were determined by flow cytometry, and CLU protein by Western blot. There were no differences in the expression of MSC markers (positive: CD133, Sca-1, CD44, CD117 and NG2, and negative: CD34, CD45, CD163, CD41, CD276, CD138, CD79a, CD146 and CD140b) and in the trilineage differentiation to chondrocytes, adipocytes and osteocytes between wild type (WT) and CLU knockout (KO) KMSCs. CLU was expressed intracellularly and secreted by WT KMSCs, and it was up-regulated by hypoxia. CLU did not prevent hypoxia-induced cell apoptosis but promoted cell growth in KMSC cultures. Furthermore, incubation with CLU-containing culture medium from WT KMSCs increased CD206 expression and phagocytic capacity of macrophages. In conclusion, our data for the first time demonstrate the function of CLU in the promotion of KMSCs proliferation, and it may be required for KMSCs-regulated macrophage M2 polarization and phagocytic activity.
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Affiliation(s)
- Xiaodong Weng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China; Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Jing Li
- Department of Ophthamology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430060, China
| | - Qiunong Guan
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Haimei Zhao
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada; College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Zihuan Wang
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada; First Clinical Medical School, Southern Medical University, Guangzhou, 510000, China
| | - Martin E Gleave
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Christopher Yc Nguan
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Caigan Du
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada.
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Abdi S, Alghamdi AA, AlGhunaim NNA, Almutairi RM, Ataya FS, Ansari MGA, Hussain SD, Masoud M, Alamro A, Almutairi OT, Al-Daghri NM, Muayqil TA. Association of Alzheimer's Disease with Genetic Variants of Apolipoprotein E, Clusterin, TNF-α and IL-6 Among Elderly Saudis. Curr Pharm Biotechnol 2022; 23:1893-1902. [PMID: 35135450 DOI: 10.2174/1389201023666220208093919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND In the wake of the warning by WHO that the prevalence of dementia may have a rise of 125% in the Middle East by 2050, identification of the genetic risk factors in Arab populations is urgent. OBJECTIVE To investigate the association of Single Nucleotide Polymorphisms (SNPs) in apolipoprotein E (ApoE), clusterin (CLU), tumor necrotic factor- α (TNF-α) and interleukin-6 (IL-6) genes, with risk of Alzheimer's disease (AD) in Saudi Arabian participants. METHOD A total of 42 Saudi AD patients and 23 age-matched control participants were genotyped for eight SNPs: rs429358, rs7412 (ApoE); rs11136000, rs1532278(CLU); rs1800629, rs1799724(TNF-α) and rs1800796, rs1800795(IL-6), by RT-PCR using the TaqMan assay. Serum concentrations of amyloid beta peptide 1-40(Aβ1-40), amyloid beta peptide 1-42(Aβ1-42), CLU and some other biochemical markers were measured. RESULTS A significant increase (p=0.004) in the serum CLU level was detected in the AD group (340.4 ± 74.6) compared with control group (265.0 ± 80.9). For rs1532278 (CLU), genotype GA was significantly higher in AD patients (57.1%) than in the control participants (26.1%), [p=0.036, OR = 3.67, 95% CI (1.10-12.32)]. For rs429358 (ApoE), patients showed a significantly increased frequency of the TC genotype than controls [p = 0.008, OR = 17.5, 95% CI (2.10-145.78)]. AD patients with CC genotype for ApoE rs429358 had significantly lower levels of Aβ1-40 (p=0.04) in AD patients than controls. Carriers of genotype GG for rs1800629(TNF-α) showed significantly higher levels of serum IL-6 (p = 0.04) in AD patients. CONCLUSION Genetic variants in ApoE and CLU may influence susceptibility to AD among Saudi Arabian participants.
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Affiliation(s)
- Saba Abdi
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Amani Ahmed Alghamdi
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | | | - Reem Muteb Almutairi
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Farid Shokry Ataya
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohammed Ghouse Ahmed Ansari
- Chair for Biomarkers of Chronic Diseases, Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Syed Danish Hussain
- Chair for Biomarkers of Chronic Diseases, Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohammad Masoud
- Chair for Biomarkers of Chronic Diseases, Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Abir Alamro
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Othman T Almutairi
- College of Medicine, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Nasser M Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Taim Abdullah Muayqil
- Neurology Unit, Department of Medicine, College of Medicine, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
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Stächele L, Stekhoven DJ, Birzele JA, Risch M, Strebel RT. Impact of retrograde intrarenal surgery on biomarkers that are associated with renal parenchyma injury, a preliminary study. World J Urol 2022. [PMID: 35066638 DOI: 10.1007/s00345-021-03909-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/07/2021] [Indexed: 10/19/2022] Open
Abstract
PURPOSE The primary objective of this preliminary study was to assess the changes in concentration of biomarkers, which indicate renal injury, after RIRS. MATERIALS AND METHODS Within this prospective study, we included 21 patients with nephrolithiasis requiring treatment with RIRS. From each patient, blood and urine samples were taken at fixed intervals before and after RIRS. Kidney injury molecule-1 (KIM-1), monocyte chemoattractant protein 1 (MCP-1), neutrophil gelatinase-associated lipocalin (NGAL), interleukin-18 (IL-18), calbindin, albumin, clusterin, gluthation S-transferase-π (GST-π), beta-2-microglobulin (B2M), osteopontin, cystatin c, and trefoil-factor-3 (TFF3) were measured in urine. Creatinine, cystatin c and uric acid were analyzed in the blood samples. RESULTS A significant increase of the biomarkers clusterin, GST-π, B2M, NGAL and cystatin c was observed after RIRS. However, the biomarkers gradually normalized during the first 14 postoperative days. The parameters surgery time, cumulative stone volume, and BMI did not significantly influence the biomarker concentrations. In the case of GST-π and NGAL a significant positive, yet minuscule effect of age was observed. CONCLUSIONS With our study, we identified 5 out of 12 assessed renal injury biomarkers that showed a significant increase after RIRS. The increase was only temporary and all markers normalized within 14 days. Further studies are needed to determine the clinical value of these identified markers to assess the long-term impact of intrarenal pressure elevation during RIRS.
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Rostagno A, Calero M, Ghiso J. Identification of Clusterin as a Major ABri- and ADan-Binding Protein Using Affinity Chromatography. Methods Mol Biol 2022; 2466:49-60. [PMID: 35585310 DOI: 10.1007/978-1-0716-2176-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Affinity chromatography has, for many years, been at the research forefront as one of the simplest although highly versatile techniques capable of identifying biologically relevant protein-protein interactions. In the field of amyloid disorders, the use of ligands immobilized to a variety of affinity matrices was the method of choice to individualize proteins with affinity for soluble circulating forms of amyloid subunits. The methodology has also played an important role in the identification of proteins that interact with different amyloidogenic peptides and, as a result, are capable of modulating their physiological and pathological functions by altering solubility, aggregation propensity, and fibril formation proclivity. Along this line, classical studies conducted in the field of Alzheimer's disease (AD) identified clusterin as a major binding protein to both circulating soluble Aβ as well as to the brain deposited counterpart. The affinity chromatography-based approach employed herein, individualized clusterin as the major protein capable of binding the amyloid subunits associated with familial British and Danish dementias, two non-Aβ neurodegenerative conditions also exhibiting cerebral amyloid deposition and sharing striking similarities to AD. The data demonstrate that clusterin binding ability to amyloid molecules is not restricted to Aβ, suggesting a modulating effect on the aggregation/fibrillization propensity of the amyloidogenic peptides that is consistent with its known chaperone activity.
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Affiliation(s)
- Agueda Rostagno
- Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Miguel Calero
- Instituto de Salud Carlos III, Madrid, Spain
- Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
- Alzheimer's Center Reina Sofia Foundation - CIEN Foundation, Madrid, Spain
| | - Jorge Ghiso
- Department of Pathology, New York University School of Medicine, New York, NY, USA.
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA.
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Ozuynuk AS, Erkan AF, Dogan N, Ekici B, Erginel-Unaltuna N, Kurmus O, Coban N. Examining the effects of the CLU and APOE polymorphisms' combination on coronary artery disease complexed with type 2 diabetes mellitus. J Diabetes Complications 2022; 36:108078. [PMID: 34686405 DOI: 10.1016/j.jdiacomp.2021.108078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 01/24/2023]
Abstract
AIMS Coronary artery disease (CAD) and type 2 diabetes mellitus (T2DM) are important and increasing public health problems. This study aimed to identify the impact of APOE and CLU gene polymorphisms on the prevalence of both diseases, along with the effect of these polymorphisms on lipid profile and glucose metabolism. METHODS 736 CAD patients (≥50 stenosis) and 549 non-CAD subjects (≤30 stenosis) were genotyped for APOE (rs429358 and rs7412) and CLU (rs11136000) gene polymorphisms using hydrolysis probes in real-time PCR. Blood samples of the individuals were drawn before coronary angiography and biochemical analyses were done. The associations between the polymorphisms and the selected parameters were assessed using statistical analysis. RESULTS In this study, the ε2 and ε4 isoforms of apoE were associated with serum lipid levels and TC/HDL-C and LDL-C/HDL-C ratios in analysis adjusted for several confounders and in crude analysis. It was observed that CLU T allele carrier non-CAD subjects had lower glycosylated hemoglobin levels. Furthermore, the effects of APOE and CLU polymorphisms were assessed on CAD and T2DM presence. In crude and multiple logistic regression analyses, the ε2 isoform carriers had a lower risk for CAD complexed with T2DM. When the combinational effects of APOE and CLU polymorphisms were examined, the ε2 and T allele carriers had decreased risk for CAD complexed with T2DM compared to non-carriers. CONCLUSIONS In conclusion, the combination of APOE and CLU polymorphisms is associated with CAD-DM status along with the APOE ε2 isoform by itself, and the apoE isoforms are strongly associated with serum lipid levels.
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Affiliation(s)
- Aybike Sena Ozuynuk
- Istanbul University, Aziz Sancar Institute for Experimental Medicine, Department of Genetics, Istanbul, Turkey; Istanbul University, Graduate School of Health Sciences, Istanbul, Turkey
| | - Aycan Fahri Erkan
- Ufuk University, Faculty of Medicine, Department of Cardiology, Ankara, Turkey
| | - Nazli Dogan
- Istanbul University, Aziz Sancar Institute for Experimental Medicine, Department of Genetics, Istanbul, Turkey; Istanbul University, Graduate School of Health Sciences, Istanbul, Turkey
| | - Berkay Ekici
- Ufuk University, Faculty of Medicine, Department of Cardiology, Ankara, Turkey
| | - Nihan Erginel-Unaltuna
- Istanbul University, Aziz Sancar Institute for Experimental Medicine, Department of Genetics, Istanbul, Turkey
| | - Ozge Kurmus
- Ufuk University, Faculty of Medicine, Department of Cardiology, Ankara, Turkey
| | - Neslihan Coban
- Istanbul University, Aziz Sancar Institute for Experimental Medicine, Department of Genetics, Istanbul, Turkey.
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Wilson MR, Satapathy S, Jeong S, Fini ME. Clusterin, other extracellular chaperones, and eye disease. Prog Retin Eye Res 2021; 89:101032. [PMID: 34896599 DOI: 10.1016/j.preteyeres.2021.101032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022]
Abstract
Proteostasis refers to all the processes that maintain the correct expression level, location, folding and turnover of proteins, essential to organismal survival. Both inside cells and in body fluids, molecular chaperones play key roles in maintaining proteostasis. In this article, we focus on clusterin, the first-recognized extracellular mammalian chaperone, and its role in diseases of the eye. Clusterin binds to and inhibits the aggregation of proteins that are misfolded due to mutations or stresses, clears these aggregating proteins from extracellular spaces, and facilitates their degradation. Clusterin exhibits three main homeostatic activities: proteostasis, cytoprotection, and anti-inflammation. The so-called "protein misfolding diseases" are caused by aggregation of misfolded proteins that accumulate pathologically as deposits in tissues; we discuss several such diseases that occur in the eye. Clusterin is typically found in these deposits, which is interpreted to mean that its capacity as a molecular chaperone to maintain proteostasis is overwhelmed in the disease state. Nevertheless, the role of clusterin in diseases involving such deposits needs to be better defined before therapeutic approaches can be entertained. A more straightforward case can be made for therapeutic use of clusterin based on its proteostatic role as a proteinase inhibitor, as well as its cytoprotective and anti-inflammatory properties. It is likely that clusterin works together in this way with other extracellular chaperones to protect the eye from disease, and we discuss several examples. We end this article by predicting future steps that may lead to development of clusterin as a biological drug.
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Affiliation(s)
- Mark R Wilson
- Molecular Horizons and the School of Chemistry and Molecular Bioscience, University of Wollongong; Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, New South Wales, 2522, Australia.
| | - Sandeep Satapathy
- Molecular Horizons and the School of Chemistry and Molecular Bioscience, University of Wollongong; Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, New South Wales, 2522, Australia.
| | - Shinwu Jeong
- USC Roski Eye Institute and Department of Ophthalmology, Keck School of Medicine of USC, University of Southern California, 1333 San Pablo Street., Los Angeles, CA, 90033, USA.
| | - M Elizabeth Fini
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine; Program in Pharmacology & Drug Development, Graduate School of Biomedical Sciences, Tufts University, 800 Washington St, Boston, MA, 02111, USA.
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Uddin MS, Kabir MT, Begum MM, Islam MS, Behl T, Ashraf GM. Exploring the Role of CLU in the Pathogenesis of Alzheimer's Disease. Neurotox Res 2021; 39:2108-2119. [PMID: 32820456 DOI: 10.1007/s12640-020-00271-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/05/2020] [Accepted: 08/10/2020] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is a chronic and devastating neurodegenerative disorder that is affecting elderly people at an increasing rate. Clusterin (CLU), an extracellular chaperone, is an ubiquitously expressed protein that can be identified in various body fluids and tissues. Expression of CLU can lead to various processes including suppression of complement system, lipid transport, chaperone function, and also controlling neuronal cell death and cell survival mechanisms. Studies have confirmed that the level of CLU expression is increased in AD. Furthermore, CLU also decreased the toxicity and aggregation of amyloid beta (Aβ). However when the Aβ level was far greater than CLU, then the amyloid generation was increased. CLU was also found to incorporate in the amyloid aggregates, which were more harmful as compared with the Aβ42 aggregates alone. Growing evidence indicates that CLU plays roles in AD pathogenesis via various processes, including aggregation and clearance of Aβ, neuroinflammation, lipid metabolism, Wnt signaling, copper homeostasis, and regulation of neuronal cell cycle and apoptosis. In this article, we represent the critical interaction of CLU and AD based on recent advances. Furthermore, we have also focused on the Aβ-dependent and Aβ-independent mechanisms by which CLU plays a role in AD pathogenesis.
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Affiliation(s)
- Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh.
- Pharmakon Neuroscience Research Network, Dhaka, Bangladesh.
| | | | | | | | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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Poggio P, Sorge M, Seclì L, Brancaccio M. Extracellular HSP90 Machineries Build Tumor Microenvironment and Boost Cancer Progression. Front Cell Dev Biol 2021; 9:735529. [PMID: 34722515 PMCID: PMC8551675 DOI: 10.3389/fcell.2021.735529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/20/2021] [Indexed: 12/21/2022] Open
Abstract
HSP90 is released by cancer cells in the tumor microenvironment where it associates with different co-chaperones generating complexes with specific functions, ranging from folding and activation of extracellular clients to the stimulation of cell surface receptors. Emerging data indicate that these functions are essential for tumor growth and progression. The understanding of the exact composition of extracellular HSP90 complexes and the molecular mechanisms at the basis of their functions in the tumor microenvironment may represent the first step to design innovative diagnostic tools and new effective therapies. Here we review the impact of extracellular HSP90 complexes on cancer cell signaling and behavior.
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Affiliation(s)
- Pietro Poggio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Matteo Sorge
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Laura Seclì
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
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Yoon T, Ahn SS, Pyo JY, Song JJ, Park YB, Lee SW. Serum Clusterin Level Could Reflect the Current Activity of Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. Yonsei Med J 2021; 62:1016-1022. [PMID: 34672135 PMCID: PMC8542470 DOI: 10.3349/ymj.2021.62.11.1016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/26/2021] [Accepted: 09/27/2021] [Indexed: 12/21/2022] Open
Abstract
PURPOSE We investigated whether serum clusterin levels could reflect the current antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV)-specific indices. MATERIALS AND METHODS Fifty-seven patients with AAV and 40 healthy controls were included in this study. AAV-specific indices included the Short-Form 36-Item Health Survey Physical and Mental Component Summaries (SF-36 PCS and MCS) scores, Birmingham vasculitis activity score (BVAS), five-factor score (FFS), and vasculitis damage index. Clinical and laboratory data and AAV-specific indices were obtained at blood collection. The highest tertile of BVAS (≥16) was defined as high activity of AAV. RESULTS The median age of AAV patients was 64.0 years and 19 patients were male. SF-36 PCS score (r=0.328), SF-36 MCS score (r=0.289), BVAS (r=-0.404), erythrocyte sedimentation rate (r=-0.336), and C-reactive protein levels (r=-0.421) were significantly correlated with serum clusterin levels. In the multivariable linear regression analysis using AAV-specific indices and serum clusterin levels, both FFS (β=0.412) and serum clusterin levels (β=-0.250) were significantly associated with BVAS. When the optimal serum clusterin cut-off level for high activity of AAV was identified as 130.45 µg/mL, patients with serum clusterin level ≤130.45 µg/mL had a significantly higher risk for high activity of AAV than did those without (relative risk 7.194). Patients with AAV exhibited significantly lower serum clusterin levels than did healthy controls (168.2 µg/mL vs. 230.5 µg/mL). CONCLUSION Serum clusterin levels could reflect the current disease activity in patients with AAV.
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Affiliation(s)
- Taejun Yoon
- Department of Medical Science, BK21 Plus Project, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Soo Ahn
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Yoon Pyo
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jason Jungsik Song
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Yong-Beom Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Won Lee
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea.
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Zeng S, Pan Y, Liu F, Yin J, Jiang M, Long Y, Zhao X, Lash GE, Yang H. Role of clusterin in the regulation of trophoblast development and preeclampsia. Biochem Biophys Res Commun 2021; 583:128-134. [PMID: 34735874 DOI: 10.1016/j.bbrc.2021.10.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/21/2022]
Abstract
Preeclampsia (PE) threatens the safety of mothers and fetuses, and its pathogenesis is still unclear. Our previous study has found the relationship between PE and serum Clusterin (CLU). This study aimed to investigate the role of CLU on PE. Firstly, levels of CLU in serum and placental tissue from PE patients and healthy pregnancies were compared. Then, RNA sequencing, cell counting kit-8, matrigel invasion, cell apoptosis, and angiogenesis assay were performed to evaluate the role of CLU on primary isolation trophoblast cells. We found the expression of CLU was increased before the clinical syndrome occurred, whereas its level was positively related to the severity of PE. CLU significantly inhibited the expression of matrix metalloproteinase-9 and Vimentin and enhanced E-cadherin to inhibit epithelial-mesenchymal transition of trophoblast cells, further reducing its migration and invasion. Our results suggested that CLU may play a role in regulating trophoblast invasion and migration during placental development, which may be one of the risk factors for PE.
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Affiliation(s)
- Shanshui Zeng
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yue Pan
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Fei Liu
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jiaye Yin
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Min Jiang
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yan Long
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Xueqin Zhao
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Gendie E Lash
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China.
| | - Hongling Yang
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China.
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Cubedo J, Padró T, Vilahur G, Crea F, Storey RF, Lopez Sendon JL, Kaski JC, Sionis A, Sans-Rosello J, Fernández-Peregrina E, Gallinat A, Badimon L. Glycosylated apolipoprotein J in cardiac ischaemia: molecular processing and circulating levels in patients with acute ischaemic events. Eur Heart J 2021; 43:153-163. [PMID: 34580705 DOI: 10.1093/eurheartj/ehab691] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/16/2021] [Accepted: 09/15/2021] [Indexed: 11/12/2022] Open
Abstract
AIM Using proteomics, we previously found that serum levels of glycosylated (Glyc) forms of apolipoprotein J (ApoJ), a cytoprotective and anti-oxidant protein, decrease in the early phase of acute myocardial infarction (AMI). We aimed to investigate: (i) ApoJ-Glyc intracellular distribution and secretion during ischaemia; (ii) the early changes in circulating ApoJ-Glyc during AMI; and (iii) associations between ApoJ-Glyc and residual ischaemic risk post-AMI. METHODS AND RESULTS Glycosylated apolipoprotein J was investigated in: (i) cells from different organ/tissue origin; (ii) a pig model of AMI; (iii) de novo AMI patients (n = 38) at admission within the first 6 h of chest pain onset and without troponin T elevation at presentation (early AMI); (iv) ST-elevation myocardial infarction patients (n = 212) who were followed up for 6 months; and (v) a control group without any overt cardiovascular disease (n = 144). Inducing simulated ischaemia in isolated cardiac cells resulted in an increased intracellular accumulation of non-glycosylated ApoJ forms. A significant decrease in ApoJ-Glyc circulating levels was seen 15 min after ischaemia onset in pigs. Glycosylated apolipoprotein J levels showed a 45% decrease in early AMI patients compared with non-ischaemic patients (P < 0.0001), discriminating the presence of the ischaemic event (area under the curve: 0.934; P < 0.0001). ST-elevation myocardial infarction patients with lower ApoJ-Glyc levels at admission showed a higher rate of recurrent ischaemic events and mortality after 6-month follow-up (P = 0.008). CONCLUSIONS These results indicate that ischaemia induces an intracellular accumulation of non-glycosylated ApoJ and a reduction in ApoJ-Glyc secretion. Glycosylated apolipoprotein J circulating levels are reduced very early after ischaemia onset. Its continuous decrease indicates a worsening in the evolution of the cardiac event, likely identifying patients with sustained ischaemia after AMI.
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Affiliation(s)
- Judit Cubedo
- Cardiovascular Program-ICCC-IR, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Teresa Padró
- Cardiovascular Program-ICCC-IR, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CiberCV), Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Gemma Vilahur
- Cardiovascular Program-ICCC-IR, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CiberCV), Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Filippo Crea
- Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, Roma 00168, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Via Giuseppe Moscati, 31, Roma 00168, Italy
| | - Robert F Storey
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield S10 2RX, UK
| | | | - Juan Carlos Kaski
- Molecular and Clinical Sciences Research Institute, St George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Alessandro Sionis
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CiberCV), Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Cardiology Department, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Jordi Sans-Rosello
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CiberCV), Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Cardiology Department, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | | | - Alex Gallinat
- Cardiovascular Program-ICCC-IR, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program-ICCC-IR, Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CiberCV), Hospital Santa Creu i Sant Pau, c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain.,Autonomous University of Barcelona, Bellaterra 08193, Spain
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Liang Y, Liang N, Ma Y, Tang S, Ye S, Xiao F. Role of Clusterin/NF-κB in the secretion of senescence-associated secretory phenotype in Cr(VI)-induced premature senescent L-02 hepatocytes. Ecotoxicol Environ Saf 2021; 219:112343. [PMID: 34020271 DOI: 10.1016/j.ecoenv.2021.112343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
Hexavalent chromium [Cr(VI)] and its compounds have caused serious environmental pollution and health damage. Senescent cells can actively change the surrounding environment by secreting some factors, which are called senescence associated secretory phenotype (SASP). Our previous work has confirmed that premature senescent hepatocytes induced by Cr(VI) expressed high level of Clusterin (CLU) and secrete interleukin-6 (IL-6) and IL-8. CLU is involved in the regulation of tumor development and drug resistance, but whether CLU regulates SASP components and participates in Cr(VI)-induced malignant transformation is unclear. In this study we demonstrated that Cr(VI) induced the secretion of tumor promoting components of SASP such as IL-6, IL-8, and granulocyte-macrophage colony stimulating factor (GM-CSF) in senescent L-02 hepatocytes, while the levels of the anti-tumor components of SASP such as chemokine (c-x-c motif) ligand-1 (CXCL-1) and monocyte chemoattractant protein-1 (MCP-1) were not altered. CLU shRNA interference significantly reduced the levels of IL-6, IL-8, and GM-CSF in the culture medium of senescent cells, suggesting CLU may regulate SASP. The NF-κB inhibitor PDTC significantly alleviated Cr(VI)-induced increase of IL-6, IL-8, and GM-CSF, confirming that NF-κB can regulate the tumor promoting components of SASP. CLU shRNA interference aggravated the inhibitory effect of PDTC on SASP secretion, indicating that CLU regulated the secretion of SASP in Cr(VI)-induced senescent hepatocytes through the NF-κB signaling. We speculated that SASP secreted by Cr(VI)-induced premature senescent hepatocytes was tightly related to the carcinogenic effect of Cr(VI). Therefore, elucidation of upstream regulatory mechanism of SASP is of great significance. In addition to further clarifying the carcinogenic mechanisms associated with Cr(VI), we could also seek out new targets for treatment of Cr(VI)-related cancer.
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Affiliation(s)
- Yuehui Liang
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China
| | - Ningjuan Liang
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China
| | - Yu Ma
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China
| | - Sixuan Tang
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China
| | - Shuzi Ye
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China
| | - Fang Xiao
- Xiangya School of Public Health, Central South University, Changsha 410078, PR China.
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Vargas A, Yamamoto KL, Craft CM, Lee EJ. Clusterin enhances cell survival by suppressing neuronal nitric-oxide synthase expression in the rhodopsin S334ter-line3 retinitis pigmentosa model. Brain Res 2021; 1768:147575. [PMID: 34242654 DOI: 10.1016/j.brainres.2021.147575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 06/20/2021] [Accepted: 06/26/2021] [Indexed: 11/18/2022]
Abstract
Environmental changes in the retina, including oxidative stress-induced cell death, influence photoreceptor degeneration in Retinitis Pigmentosa (RP). Previously, we tested and discovered that a cytoprotective chaperone protein, clusterin, produced robust preservation of rod photoreceptors of a rat autosomal dominant rhodopsin transgenic model of RP, S334ter-line3. To investigate the biochemical and molecular cytoprotective pathways of clusterin, we examined and compared a known source of cone cell death, nitric oxide (NO), observing nNOS expression using antibody against nNOS in RP retinas with intravitreal injections of saline, clusterin (10 μg/ml), or a non-isoform-selective NOS inhibitor (25 mM), L-NAME, or with an intraperitoneal injection (IP) of L-NAME (100 mg/kg). Rhodopsin-immunoreactive rod photoreceptor cells and nNOS-immunoreactive cells were quantified with immunohistochemistry in the presence or absence of L-NAME or clusterin, and the total nNOS retinal expression was determined by immunoblot analysis. In this study, the level of nNOS expression was significantly up-regulated postnatally (P) at P15 (P < 0.05), P30 (P < 0.001) and P60 (P < 0.0001) in RP retinas compared to normal controls. Clusterin treatment suppressed the up-regulated nNOS expression in RP retinas (P < 0.0001) and was enhanced in Type II amacrine cells. Additionally, IP injection of L-NAME at P15 prolonged rod survival in the later stage of RP retinas (P < 0.001). Conversely, rod survival in L-NAME-treated RP retinas was not equivalent to the rod survival number seen in clusterin-treated retinas, which suggests induction of nNOS expression in RP retinas and its reduction by clusterin is only partly responsible for the rescue observed through the reduction of nNOS expression in S334ter-line3 rat retinas.
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Affiliation(s)
- Andrew Vargas
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Los Angeles, CA, United States
| | - Kyra L Yamamoto
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Los Angeles, CA, United States
| | - Cheryl Mae Craft
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Los Angeles, CA, United States; Department of Integrative Anatomical Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States
| | - Eun-Jin Lee
- Mary D. Allen Vision Research Laboratory, USC Roski Eye Institute, Department of Ophthalmology, Los Angeles, CA, United States; Department of Ophthalmology, Stanford University, Palo Alto, CA, United States; VA Palo Alto Healthcare System, Palo Alto, CA, United States; Department of Pathology, Stanford University, Palo Alto, CA, United States.
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42
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Rodríguez-Rivera C, Pérez-Ortiz JM, Pook E, Conjaerts N, Alguacil LF, González-Martín C. Clusterin overexpression as a potential neuroprotective response to the pathological effects of high fat dieting on the brain reward system. Food Chem Toxicol 2021; 152:112186. [PMID: 33838178 DOI: 10.1016/j.fct.2021.112186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 11/23/2022]
Abstract
High-fat diets (HFDs) can lead to pathological changes in the brain underlying several behavioral disturbances (e.g., reward deficiency). To further increase our knowledge of these associations, we studied the sucrose reward and the brain expression of clusterin, a protein that is overexpressed after several kind of brain damaging conditions. C57BL/6J male mice were differentially fed on an HFD or standard chow for 41 days and underwent 11 sucrose place conditioning sessions followed by 4 extinction sessions to monitor the effects of HFD on sucrose reward by means of free choice tests. We quantified clusterin expression by immunochemistry in the nucleus accumbens, dorsal striatum and cingulate cortex. HFD tended to provoke a transient potentiation in the acquisition of sucrose-conditioned place preference, but this effect was followed by a much more consistent reduction in sucrose preference, which spontaneously disappeared after 31 days of an HFD with no need for extinction learning. The HFD mice showed higher clusterin expression in the nucleus accumbens but not in the other brain areas studied. The results confirm that HFDs strongly influence the rewarding properties of palatable foods and suggest a direct connection with neurotoxic alterations in the brain reward system tagged by clusterin overexpression.
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Affiliation(s)
- Carmen Rodríguez-Rivera
- Facultad de Farmacia and Instituto de Estudios de las Adicciones, Universidad San Pablo-CEU, CEU Universities, Campus Montepríncipe, 28925, Alcorcón, Madrid, Spain
| | - José Manuel Pérez-Ortiz
- Unidad de Investigación Traslacional, Hospital General Universitario de Ciudad Real, Obispo Rafael Torija s/n, 13005, Ciudad Real, Spain
| | - Elizabeth Pook
- Facultad de Farmacia and Instituto de Estudios de las Adicciones, Universidad San Pablo-CEU, CEU Universities, Campus Montepríncipe, 28925, Alcorcón, Madrid, Spain
| | - Nina Conjaerts
- Facultad de Farmacia and Instituto de Estudios de las Adicciones, Universidad San Pablo-CEU, CEU Universities, Campus Montepríncipe, 28925, Alcorcón, Madrid, Spain
| | - Luis F Alguacil
- Facultad de Farmacia and Instituto de Estudios de las Adicciones, Universidad San Pablo-CEU, CEU Universities, Campus Montepríncipe, 28925, Alcorcón, Madrid, Spain.
| | - Carmen González-Martín
- Facultad de Farmacia and Instituto de Estudios de las Adicciones, Universidad San Pablo-CEU, CEU Universities, Campus Montepríncipe, 28925, Alcorcón, Madrid, Spain
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de Campos TDP, da Cruz Rodrigues KC, Pereira RM, Anaruma CP, Dos Santos Canciglieri R, de Melo DG, da Silva ASR, Cintra DE, Ropelle ER, Pauli JR, de Moura LP. The protective roles of clusterin in ocular diseases caused by obesity and diabetes mellitus type 2. Mol Biol Rep 2021; 48:4637-4645. [PMID: 34036481 DOI: 10.1007/s11033-021-06419-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/17/2021] [Indexed: 11/26/2022]
Abstract
Obesity is a chronic, non-transmissible and multifactorial disease commonly associated with systemic inflammation and damage to health. This disorder has been pointed out as leading to the development of a diversity of eye diseases and, consequently, damage to visual acuity. More specifically, cardiometabolic risk is associated with lacrimal gland dysfunctions, since it changes the inflammatory profile favoring the development and worsening of dry eye disease. In more severe and extreme cases, obesity, inflammation, and diabetes mellitus type 2 can trigger the total loss of vision. In this scenario, besides its numerous metabolic functions, clusterin, an apolipoprotein, has been described as protective to the ocular surface through the seal mechanism. Thus, the current review aimed to explain the role of clusterin in dry eye disease that can be triggered by obesity and diabetes.
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Affiliation(s)
- Thaís Dantis Pereira de Campos
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | - Kellen Cristina da Cruz Rodrigues
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | - Rodrigo Martins Pereira
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | - Chadi Pellegrini Anaruma
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | - Raphael Dos Santos Canciglieri
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | - Diego Gomes de Melo
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
| | | | - Dennys Esper Cintra
- Laboratory of Nutritional Genomics (LABGeN), School of Applied Sciences, University of Campinas, Limeira, SP, Brazil
- CEPECE - Center of Research in Sport Sciences. School of Applied Sciences, University of Campinas (UNICAMP), Limeira, SP, Brazil
| | - Eduardo Rochete Ropelle
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
- CEPECE - Center of Research in Sport Sciences. School of Applied Sciences, University of Campinas (UNICAMP), Limeira, SP, Brazil
| | - José Rodrigo Pauli
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil
- CEPECE - Center of Research in Sport Sciences. School of Applied Sciences, University of Campinas (UNICAMP), Limeira, SP, Brazil
| | - Leandro Pereira de Moura
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, 1300 Pedro Zaccaria Street, Limeira, SP, Brazil.
- CEPECE - Center of Research in Sport Sciences. School of Applied Sciences, University of Campinas (UNICAMP), Limeira, SP, Brazil.
- Postgraduate Program in Motricity Sciences, São Paulo State University (UNESP), São Paulo, Brazil.
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Zeng S, Han M, Jiang M, Liu F, Hu Y, Long Y, Zhu C, Zeng F, Gan Q, Ye W, Fu W, Yang H. Serum complement proteomics reveal biomarkers for hypertension disorder of pregnancy and the potential role of Clusterin. Reprod Biol Endocrinol 2021; 19:56. [PMID: 33874952 PMCID: PMC8054419 DOI: 10.1186/s12958-021-00742-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/07/2021] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Hypertension disorder of pregnancy (HDP) is one of the leading causes of maternal and foetal illness. The aim of the current study was to identify and verify novel serum markers for HDP. METHODS A label-free LC-MS/MS method was used to establish the serum proteomic profiles of 12 pre-HDP (before clinical diagnosis of HDP) pregnancies and verify prioritized candidates in the verification set of 48 pre-HDP pregnancies. These biomarkers were revalidated by ELISA in an independent cohort of 88 pre-HDP pregnancies. Subsequently, the candidate biomarkers were histologically analysed by immunohistochemistry, and function was evaluated in TEV-1 cells. RESULTS We identified 33 proteins with significantly increased abundance and 14 with decreased abundance (peptide FDR ≤ 1%, P < 0.05). Complement was one of the top enriched components in the pre-HDP group compared with the control group. Three complement factors (CLU, CFHR5, and CRP) were significantly increased in the three sets, of which CLU was a critical factor for the development of HDP (OR = 1.22, P < 0.001). When these three factors and body weight were combined, the AUC was 0.74, with a sensitivity of 0.67 and specificity of 0.68 for HDP prediction compared with normal pregnancy. In addition, inflammation-induced CLU could inhibit the invasion of TEV-1 cells. CONCLUSIONS Complement proteins may play an essential role in the occurrence of HDP by acting on trophoblast cells. CLU may be a high-risk factor for HDP, and the models combining candidates show reasonable screening efficiency of HDP in the first half of pregnancy.
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Affiliation(s)
- Shanshui Zeng
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Mengru Han
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Min Jiang
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Fei Liu
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Yanwei Hu
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Yan Long
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Chunyan Zhu
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Fangling Zeng
- Department of Gynaecology and Obstetrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Qiangsheng Gan
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Weitao Ye
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Wenjin Fu
- Clinical Laboratory, Houjie Hospital of Guangdong Medical University, HeTian Road, Dongguan, 523945, Guangdong, China.
| | - Hongling Yang
- Department of Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, No.9, Jinsui Road, Guangzhou, 510623, Guangdong, China.
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Wang X, Liu Y, Qin Q, Zheng T. Clusterin role in hepatocellular carcinoma patients treated with oxaliplatin. Biosci Rep 2020; 40:BSR20200071. [PMID: 32039450 DOI: 10.1042/BSR20200071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 01/11/2023] Open
Abstract
Aim: To explore the prognostic value of clusterin (CLU) in hepatocellular carcinoma (HCC) patients treated with oxaliplatin (OXA). Methods: Relative expression of plasma CLU mRNA was examined via fluorescence quantitative real-time PCR (qRT-PCR), and CLU protein level in tissue samples was detected through immunohistochemistry. Chi-square test was used to analyze the relationship between CLU mRNA expression and clinical features of HCC patients treated with OXA. Kaplan–Meier method was performed to assess overall survival for the patients, and prognostic value of CLU in HCC patients was estimated via Cox regression analysis. Results:CLU expression in plasma and tissue specimens was significantly higher among HCC patients than in non-malignant controls (P < 0.001 for both). Moreover, elevated CLU mRNA was closely related to tumor stage, lymph node metastasis and response to OXA (P < 0.05). HCC patients with high CLU expression showed poor response to OXA. In addition, low CLU levels predicted long overall survival time among the study subjects (20.8 vs. 36.6 months, P < 0.001). CLU was an independent prognostic indicator for HCC patients treated with OXA (HR = 2.587, 95%CI = 1.749–3.828, P < 0.001). Conclusion:CLU may be a novel prognostic marker for HCC patients treated with OXA.
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Chen F, Swartzlander DB, Ghosh A, Fryer JD, Wang B, Zheng H. Clusterin secreted from astrocyte promotes excitatory synaptic transmission and ameliorates Alzheimer's disease neuropathology. Mol Neurodegener 2021; 16:5. [PMID: 33517893 PMCID: PMC7849119 DOI: 10.1186/s13024-021-00426-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/14/2021] [Indexed: 12/15/2022] Open
Abstract
Background Genome-wide association studies have established clusterin (CLU) as a genetic modifier for late-onset Alzheimer’s disease (AD). Both protective and risk alleles have been identified which may be associated with its expression levels. However, the physiological function of clusterin in the central nervous system remains largely unknown. Methods We examined Clu expression in mouse brains by immunohistochemistry and high-resolution imaging. We performed electrophysiological recordings and morphological analysis of dendritic spines in wild-type and Clu knockout mice. We tested synaptic function of astrocytic Clu using neuron-glia co-cultures and by AAV-mediated astroglial Clu expression in vivo. Finally, we investigated the role of astrocytic Clu on synaptic properties and amyloid pathology in 5xFAD transgenic mouse model of AD. Results We show that astrocyte secreted Clu co-localizes with presynaptic puncta of excitatory neurons. Loss of Clu led to impaired presynaptic function and reduced spine density in vivo. Neurons co-cultured with Clu-overexpressing astrocytes or treated with conditioned media from HEK293 cells transfected with Clu displayed enhanced excitatory neurotransmission. AAV-mediated astroglial Clu expression promoted excitatory neurotransmission in wild-type mice and rescued synaptic deficits in Clu knockout mice. Overexpression of Clu in the astrocytes of 5xFAD mice led to reduced Aβ pathology and fully rescued the synaptic deficits. Conclusion We identify Clu as an astrocyte-derived synaptogenic and anti-amyloid factor; the combination of these activities may influence the progression of late-onset AD. Supplementary Information The online version contains supplementary material available at 10.1186/s13024-021-00426-7.
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Affiliation(s)
- Fading Chen
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, 77030, USA.,Present address: Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Dan B Swartzlander
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Anamitra Ghosh
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, 77030, USA
| | - John D Fryer
- Department of Neuroscience, Mayo Clinic, Scottsdale, AZ, 85259, USA
| | - Baiping Wang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, 77030, USA. .,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, 77030, USA.
| | - Hui Zheng
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, 77030, USA. .,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, 77030, USA.
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Yavrum F, Elgin U, Kocer ZA, Fidanci V, Sen E. Evaluation of aqueous humor and serum clusterin levels in patients with glaucoma. BMC Ophthalmol 2021; 21:25. [PMID: 33422048 PMCID: PMC7796574 DOI: 10.1186/s12886-020-01781-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/21/2020] [Indexed: 12/03/2022] Open
Abstract
Background To compare the aqueous humor (AH) and the serum clusterin levels of patients with pseudoexfoliation syndrome (PEX), pseudoexfoliation glaucoma (PEXG), and primary open-angle glaucoma (POAG) with each other and with an age- and sex-matched control group. Methods This prospective, cross-sectionalstudy evaluated 92 eyes from 92 adult cases of uncomplicated phacoemulsification and posterior chamber intraocular lens (IOL) implantation. The cases were divided into PEX, PEXG, POAG, and control groups. Serum samples were taken from the antecubital vein just before the surgery, and the AH samples were aspirated at the beginning of the surgery. Kruskal-Wallis H, One-way ANOVA, Mann-Whitney U with Bonferroni correction and Chi-Square tests were used for statistical analysis. Results The serum clusterin levels were the highest in the PEXG group, but no statistically significant differences were observed between the groups (p=0.633). The mean AH clusterin levels were 286.79±29.64 μg/mL in the PEXG group, 263.92±31.70 μg/mL in the PEX group, 272.59±49.71 μg/mL in the POAG group, and 193.50±62.38 μg/mL in the control group (p< 0.001). This came out to be 1.48 times increase for the PEXG group, 1.36 for the PEX group, and 1.41 for the POAG group when compared with the control subjects. Conclusions A higher level of clusterin in the anterior chamber was found to be associated with PEX and PEXG. In addition, a high level of anterior chamber clusterin in POAG, which is a new finding, showed that this molecule might be important not only in pseudoexfoliation, but also other types of glaucoma like POAG.
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Affiliation(s)
| | - Ufuk Elgin
- University of Health Sciences, Ulucanlar Eye Research Hospital, Ankara, Turkey
| | - Zeynep Adiyaman Kocer
- University of Health Sciences, Ankara Research and Training Hospital, Ankara, Turkey
| | - Vildan Fidanci
- University of Health Sciences, Ankara Research and Training Hospital, Ankara, Turkey
| | - Emine Sen
- University of Health Sciences, Ulucanlar Eye Research Hospital, Ankara, Turkey
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Praharaj PP, Patra S, Panigrahi DP, Patra SK, Bhutia SK. Clusterin as modulator of carcinogenesis: A potential avenue for targeted cancer therapy. Biochim Biophys Acta Rev Cancer 2020; 1875:188500. [PMID: 33385484 DOI: 10.1016/j.bbcan.2020.188500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/14/2020] [Accepted: 12/24/2020] [Indexed: 12/30/2022]
Abstract
Clusterin (CLU) is an evolutionary conserved molecular chaperone present in different human tissues and fluids and established to be a significant cancer regulator. It controls several cancer-associated cellular events, including cancer cell proliferation, stemness, survival, metastasis, epithelial-mesenchymal transition, therapy resistance, and inhibition of programmed cell death to support cancer growth and recurrence. This multifunctional role of CLU makes it an ideal target for cancer control. More importantly, genetic and antisense-mediated (OGX-011) inhibition of CLU enhances the anticancer potential of different FDA-approved chemotherapeutic drugs at the clinical level, improving patient's survival. In this review, we have discussed the detailed mechanism of CLU-mediated modulation of different cancer-associated signaling pathways. We have also provided updated information on the current preclinical and clinical findings that drive trials in various cancer types for potential targeted cancer therapy.
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Affiliation(s)
- Prakash Priyadarshi Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Srimanta Patra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Debasna Pritimanjari Panigrahi
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Sujit Kumar Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India.
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Wojtas AM, Carlomagno Y, Sens JP, Kang SS, Jensen TD, Kurti A, Baker KE, Berry TJ, Phillips VR, Castanedes MC, Awan A, DeTure M, De Castro CHF, Librero AL, Yue M, Daughrity L, Jansen-West KR, Cook CN, Dickson DW, Petrucelli L, Fryer JD. Clusterin ameliorates tau pathology in vivo by inhibiting fibril formation. Acta Neuropathol Commun 2020; 8:210. [PMID: 33261653 PMCID: PMC7708249 DOI: 10.1186/s40478-020-01079-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 11/10/2022] Open
Abstract
The molecular chaperone Clusterin (CLU) impacts the amyloid pathway in Alzheimer's disease (AD) but its role in tau pathology is unknown. We observed CLU co-localization with tau aggregates in AD and primary tauopathies and CLU levels were upregulated in response to tau accumulation. To further elucidate the effect of CLU on tau pathology, we utilized a gene delivery approach in CLU knock-out (CLU KO) mice to drive expression of tau bearing the P301L mutation. We found that loss of CLU was associated with exacerbated tau pathology and anxiety-like behaviors in our mouse model of tauopathy. Additionally, we found that CLU dramatically inhibited tau fibrilization using an in vitro assay. Together, these results demonstrate that CLU plays a major role in both amyloid and tau pathologies in AD.
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Tang S, Ye S, Ma Y, Liang Y, Liang N, Xiao F. Clusterin alleviates Cr(VI)-induced mitochondrial apoptosis in L02 hepatocytes via inhibition of Ca 2+-ROS-Drp1-mitochondrial fission axis. Ecotoxicol Environ Saf 2020; 205:111326. [PMID: 32961495 DOI: 10.1016/j.ecoenv.2020.111326] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
Hexavalent chromium [Cr(VI)] is ubiquitous in the environment and is commonly used in various industrial processes. Clusterin (CLU) is an extracellular chaperone protein which exerts the anti-apoptotic function. In this study, we aimed to explore the effect of CLU on Cr(VI)-induced mitochondrial fission and apoptosis. We revealed that the apoptosis rate of L02 hepatocytes treated with Cr (VI) was increased. CLU over-expression could protect the hepatocytes from Cr(VI)-induced mitochondrial apoptosis. Furthermore, Cr(VI) triggered the intracellular calcium overload, resulting in the activation of xanthine oxidase (XO). Cr(VI) induced reactive oxygen species (ROS) overproduction, led to dynamin-related protein 1 (Drp1) translocation to mitochondria and the subsequent mitochondrial fission, contributing to the caspase-3-dependent mitochondrial apoptosis as evidenced by higher mitochondrial permeability transition pore (mPTP) opening rate, lower mitochondrial membrane potential (MMP), and more alanine transaminase (ALT)/aspartate transaminase (AST) leakage into the culture medium. However, CLU over-expression could trigger the AMP-activated protein kinase (AMPK) pathway, which was followed by the increase of sarcoplasmic reticulum Ca2+-ATPase (SERCA2a) expression. CLU-induced AMPK/SERCA2a activation attenuated calcium overload, caspase-3 activation, and ultimate mitochondrial apoptosis. All in all, the present study demonstrated that Cr(VI) induced hepatocytes apoptosis via Ca2+-ROS-Drp1-mitochondrial fission axis and CLU alleviated the mitochondrial apoptosis through activation of the AMPK/SERCA2a pathway.
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Affiliation(s)
- Sixuan Tang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China
| | - Shuzi Ye
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China
| | - Yu Ma
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China
| | - Yuehui Liang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China
| | - NingJuan Liang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China
| | - Fang Xiao
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
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