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Kim MS, Cho K, Cho MH, Kim NY, Kim K, Kim DH, Yoon SY. Neuronal MHC-I complex is destabilized by amyloid-β and its implications in Alzheimer's disease. Cell Biosci 2023; 13:181. [PMID: 37773139 PMCID: PMC10540404 DOI: 10.1186/s13578-023-01132-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/11/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUNDS The expression of major histocompatibility complex I (MHC-I) in neurons has recently been shown to regulate neurite outgrowth and synaptic plasticity. However, its contribution to neurodegenerative diseases such as Alzheimer's disease (AD) remains largely unknown. METHODS In this study, we investigated the relationship between impaired MHC-I-β2M complex and AD in vitro and human AD samples. Interaction between protein was identified by liquid chromatography-tandem mass spectrometry and confirmed by immunoprecipitation. Single-chain trimer of MHC-I-β2M was generated to study the effect of stabilization of MHC-I-β2M complex on NCAM1 signaling. RESULTS MHC-I is destabilized in the brains of AD patients and neuronal cells treated with oligomeric β-amyloid (Aβ). Specifically, Aβ oligomers disassemble the MHC-I-β2-microglobulin (β2M) complex, leading to reduced interactions with neural cell adhesion molecule 1 (NCAM1), a novel interactor of neuronal MHC-I, and decreased signaling. Inhibition of MHC-I-β2M complex destabilization by non-dissociable MHC-I-β2M-peptide complex restored MHC-I-NCAM1 signaling in neuronal cells. CONCLUSIONS The current study demonstrated that disruption of MHC-1-NCAM1 signaling by Aβ induced disassembly of MHC-I-β2M complex is involved in the pathophysiology of AD. Moreover, our findings suggest modulation of MHC-I stability may be a potential therapeutic target for restoring synaptic function in AD.
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Affiliation(s)
- Min-Seok Kim
- ADEL Institute of Science & Technology (AIST), ADEL, Inc., Seoul, Korea
| | - Kwangmin Cho
- ADEL Institute of Science & Technology (AIST), ADEL, Inc., Seoul, Korea
| | - Mi-Hyang Cho
- ADEL Institute of Science & Technology (AIST), ADEL, Inc., Seoul, Korea
| | - Na-Young Kim
- ADEL Institute of Science & Technology (AIST), ADEL, Inc., Seoul, Korea
| | - Kyunggon Kim
- Department of Convergence Medicine, Convergence Medicine Research Center/Biomedical Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong-Hou Kim
- Department of Brain Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Seung-Yong Yoon
- ADEL Institute of Science & Technology (AIST), ADEL, Inc., Seoul, Korea.
- Department of Brain Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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2
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Chatanaka MK, Sohaei D, Diamandis EP, Prassas I. Beyond the amyloid hypothesis: how current research implicates autoimmunity in Alzheimer's disease pathogenesis. Crit Rev Clin Lab Sci 2023; 60:398-426. [PMID: 36941789 DOI: 10.1080/10408363.2023.2187342] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 03/01/2023] [Indexed: 03/23/2023]
Abstract
The amyloid hypothesis has so far been at the forefront of explaining the pathogenesis of Alzheimer's Disease (AD), a progressive neurodegenerative disorder that leads to cognitive decline and eventual death. Recent evidence, however, points to additional factors that contribute to the pathogenesis of this disease. These include the neurovascular hypothesis, the mitochondrial cascade hypothesis, the inflammatory hypothesis, the prion hypothesis, the mutational accumulation hypothesis, and the autoimmunity hypothesis. The purpose of this review was to briefly discuss the factors that are associated with autoimmunity in humans, including sex, the gut and lung microbiomes, age, genetics, and environmental factors. Subsequently, it was to examine the rise of autoimmune phenomena in AD, which can be instigated by a blood-brain barrier breakdown, pathogen infections, and dysfunction of the glymphatic system. Lastly, it was to discuss the various ways by which immune system dysregulation leads to AD, immunomodulating therapies, and future directions in the field of autoimmunity and neurodegeneration. A comprehensive account of the recent research done in the field was extracted from PubMed on 31 January 2022, with the keywords "Alzheimer's disease" and "autoantibodies" for the first search input, and "Alzheimer's disease" with "IgG" for the second. From the first search, 19 papers were selected, because they contained recent research on the autoantibodies found in the biofluids of patients with AD. From the second search, four papers were selected. The analysis of the literature has led to support the autoimmune hypothesis in AD. Autoantibodies were found in biofluids (serum/plasma, cerebrospinal fluid) of patients with AD with multiple methods, including ELISA, Mass Spectrometry, and microarray analysis. Through continuous research, the understanding of the synergistic effects of the various components that lead to AD will pave the way for better therapeutic methods and a deeper understanding of the disease.
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Affiliation(s)
- Miyo K Chatanaka
- Department of Laboratory and Medicine Pathobiology, University of Toronto, Toronto, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Dorsa Sohaei
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada
| | - Eleftherios P Diamandis
- Department of Laboratory and Medicine Pathobiology, University of Toronto, Toronto, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Clinical Biochemistry, University Health Network, Toronto, Canada
| | - Ioannis Prassas
- Laboratory Medicine Program, University Health Network, Toronto, Canada
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3
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Pharmacogenetic and Association Studies on the Influence of HLA Alleles and Rivastigmine on the Iranian Patients with Late-Onset Alzheimer's Disease. Mol Neurobiol 2021; 58:2792-2802. [PMID: 33502736 DOI: 10.1007/s12035-021-02295-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/13/2021] [Indexed: 10/22/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder affecting cognitive function. A number of allelic genes from HLA complex have shown variable associations with AD in different populations. In this study, we investigated the association of DQB1*06:00/x, DRB1*04:00/x, DRB1*15:00/x, and B*07:00/x genotypes with AD and their relevance to the efficacy of rivastigmine treatment in the Iranian population. Our findings suggest that DQB1*06:00/x genotype offers strong protection against AD (P = 0.0074), while B*07:00/x genotype imposes a significant susceptibility for sporadic Alzheimer's disease (SAD) (P = 0.009). Interestingly, B*07:00/x genotype does not show any apparent associations with familial Alzheimer's disease (FAD). Our studies also suggest a pharmacogenetic relationship between drug treatment and presence of a particular genotype in the Iranian LOAD patient population. The Clinical Dementia Rating analysis showed that LOAD patients carrying DRB1*04:00/x genotype tend to display a downward trend in the disease severity and symptoms after 2-year follow-up with rivastigmine treatment. Moreover, in our total patient population, the carriers of DQB1*06:00/x and B*07:00/x alleles have better and worse responses to rivastigmine respectively. We also measured the clinical relevance of the testing for these genotypes employing prevalence-corrected positive predictive value (PcPPV) formula. The PcPPV of testing for DQB1*06:00/x in the Iranian LOAD patients was 1.17% which means that people carrying this genotype have half of the probability of the absolute risk for developing LOAD, whereas the PcPPV of testing for B*07:00/x was 4.45% for SAD, which can be interpreted as a doubling chance for developing LOAD among the Iranian population carrying this genotype. These results also suggest that DQβ1 peptide containing positively charged AAs histidine30 and arginine55 and HLA class I β chain containing negatively charges aspartic acid114 and glutamic acid45,152 in their binding groove plays important roles in protection against and susceptibility for LOAD respectively.
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4
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Wang ZX, Wan Q, Xing A. HLA in Alzheimer's Disease: Genetic Association and Possible Pathogenic Roles. Neuromolecular Med 2020; 22:464-473. [PMID: 32894413 DOI: 10.1007/s12017-020-08612-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 08/29/2020] [Indexed: 11/25/2022]
Abstract
Alzheimer's disease (AD) is commonly considered as the most prominent dementing disorder globally and is characterized by the deposition of misfolded amyloid-β (Aβ) peptide and the aggregation of neurofibrillary tangles. Immunological disturbances and neuroinflammation, which result from abnormal immunological reactivations, are believed to be the primary stimulating factors triggering AD-like neuropathy. It has been suggested by multiple previous studies that a bunch of AD key influencing factors might be attributed to genes encoding human leukocyte antigen (HLA), whose variety is an essential part of human adaptive immunity. A wide range of activities involved in immune responses may be determined by HLA genes, including inflammation mediated by the immune response, T-cell transendothelial migration, infection, brain development and plasticity in AD pathogenesis, and so on. The goal of this article is to review the recent epidemiological findings of HLA (mainly HLA class I and II) associated with AD and investigate to what extent the genetic variations of HLA were clinically significant as pathogenic factors for AD. Depending on the degree of contribution of HLA in AD pathogenesis, targeted research towards HLA may propel AD therapeutic strategies into a new era of development.
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Affiliation(s)
- Zi-Xuan Wang
- Department of Geriatrics, the Affiliated Hospital of Qingdao University, No.16 Jiangsu Road, Qingdao, 266071, Shandong Province, China.
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, No.308 Ningxia Road, Qingdao, 266071, China.
| | - Qi Wan
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, No.308 Ningxia Road, Qingdao, 266071, China.
- Department of Neurosurgery, Qingdao University, Qingdao, 266071, China.
- Department of Pathophysiology, Qingdao University, Qingdao, 266071, China.
| | - Ang Xing
- Department of Geriatrics, the Affiliated Hospital of Qingdao University, No.16 Jiangsu Road, Qingdao, 266071, Shandong Province, China
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Li HY, Tsai MS, Huang CG, Wang RYL, Chuang LP, Chen NH, Liu CH, Hsu CM, Cheng WN, Lee LA. Alterations in Alzheimer's Disease-Associated Gene Expression in Severe Obstructive Sleep Apnea Patients. J Clin Med 2019; 8:jcm8091361. [PMID: 31480626 PMCID: PMC6780075 DOI: 10.3390/jcm8091361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/24/2019] [Accepted: 08/28/2019] [Indexed: 01/18/2023] Open
Abstract
Background: Obstructive sleep apnea (OSA) increases the risk of Alzheimer’s disease (AD), and inflammation may be involved in the early pathogenesis of AD in patients with OSA. However, the potential pathways between OSA and AD have yet to be established. In this study, we aimed to investigate differential expressions of AD-associated genes in OSA patients without evident AD or dementia. Methods: This prospective case-control study included five patients with severe OSA and five age and sex-matched patients with non-severe OSA without evident dementia who underwent uvulopalatopharyngoplasty between 1 January 2013 and 31 December 2015. The expressions of genes associated with AD were analyzed using whole-exome sequencing. Unsupervised two-dimensional hierarchical clustering was performed on these genes. Pearson’s correlation was used as the distance metric to simultaneously cluster subjects and genes. Results: The expressions of CCL2, IL6, CXCL8, HLA-A, and IL1RN in the patients with severe OSA were significantly different from those in the patients with non-severe OSA and contributed to changes in the immune response, cytokine–cytokine receptor interactions, and nucleotide-binding oligomerization domain-like receptor signaling pathways. Conclusions: Inflammation may contribute to the onset of AD and physicians need to be aware of the potential occurrence of AD in patients with severe OSA.
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Affiliation(s)
- Hsueh-Yu Li
- Department of Otolaryngology-Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Ming-Shao Tsai
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Otolaryngology-Head and Neck Surgery, Chiayi Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Health Information and Epidemiology Laboratory, Chiayi, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Chung-Guei Huang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
- Research Center for Emerging Viral Infections, Chang Gung University, Taoyuan 333, Taiwan.
- Graduate Institute of Biomedical Sciences, Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
| | - Robert Y L Wang
- Research Center for Emerging Viral Infections, Chang Gung University, Taoyuan 333, Taiwan
| | - Li-Pang Chuang
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Pulmonary and Critical Care Medicine, Taoyuan Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Ning-Hung Chen
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Pulmonary and Critical Care Medicine, Taoyuan Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chi-Hung Liu
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Stroke Center and Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Cheng-Ming Hsu
- Department of Otolaryngology-Head and Neck Surgery, Chiayi Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Wen-Nuan Cheng
- Department of Sports Sciences, University of Taipei, Taipei 111, Taiwan
| | - Li-Ang Lee
- Department of Otolaryngology-Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
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6
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Boyko AA, Troyanova NI, Kovalenko EI, Sapozhnikov AM. Similarity and Differences in Inflammation-Related Characteristics of the Peripheral Immune System of Patients with Parkinson's and Alzheimer's Diseases. Int J Mol Sci 2017; 18:ijms18122633. [PMID: 29211044 PMCID: PMC5751236 DOI: 10.3390/ijms18122633] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/21/2017] [Accepted: 12/01/2017] [Indexed: 12/14/2022] Open
Abstract
Parkinson's disease (PD) and Alzheimer's disease (AD) are the most common age-related neurodegenerative disorders. Both diseases are characterized by chronic inflammation in the brain-neuroinflammation. The first signs of PD and AD are most often manifested in old age, in which the immune system is usually characterized by chronic inflammation, so-called "inflammaging" In recent years, there is growing evidence that pathogenesis of these diseases is connected with both regional and peripheral immune processes. Currently, the association of clinical signs of PD and AD with different characteristics of patient immune status is actively being researched. In this mini-review we compare the association of PD and AD alterations of a number of immune system parameters connected with the process of inflammation.
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Affiliation(s)
- Anna A Boyko
- Laboratory of Cell Interactions, Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia.
| | - Natalya I Troyanova
- Laboratory of Cell Interactions, Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia.
| | - Elena I Kovalenko
- Laboratory of Cell Interactions, Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia.
| | - Alexander M Sapozhnikov
- Laboratory of Cell Interactions, Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia.
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7
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Steele NZR, Carr JS, Bonham LW, Geier EG, Damotte V, Miller ZA, Desikan RS, Boehme KL, Mukherjee S, Crane PK, Kauwe JSK, Kramer JH, Miller BL, Coppola G, Hollenbach JA, Huang Y, Yokoyama JS. Fine-mapping of the human leukocyte antigen locus as a risk factor for Alzheimer disease: A case-control study. PLoS Med 2017; 14:e1002272. [PMID: 28350795 PMCID: PMC5369701 DOI: 10.1371/journal.pmed.1002272] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 02/17/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Alzheimer disease (AD) is a progressive disorder that affects cognitive function. There is increasing support for the role of neuroinflammation and aberrant immune regulation in the pathophysiology of AD. The immunoregulatory human leukocyte antigen (HLA) complex has been linked to susceptibility for a number of neurodegenerative diseases, including AD; however, studies to date have failed to consistently identify a risk HLA haplotype for AD. Contributing to this difficulty are the complex genetic organization of the HLA region, differences in sequencing and allelic imputation methods, and diversity across ethnic populations. METHODS AND FINDINGS Building on prior work linking the HLA to AD, we used a robust imputation method on two separate case-control cohorts to examine the relationship between HLA haplotypes and AD risk in 309 individuals (191 AD, 118 cognitively normal [CN] controls) from the San Francisco-based University of California, San Francisco (UCSF) Memory and Aging Center (collected between 1999-2015) and 11,381 individuals (5,728 AD, 5,653 CN controls) from the Alzheimer's Disease Genetics Consortium (ADGC), a National Institute on Aging (NIA)-funded national data repository (reflecting samples collected between 1984-2012). We also examined cerebrospinal fluid (CSF) biomarker measures for patients seen between 2005-2007 and longitudinal cognitive data from the Alzheimer's Disease Neuroimaging Initiative (n = 346, mean follow-up 3.15 ± 2.04 y in AD individuals) to assess the clinical relevance of identified risk haplotypes. The strongest association with AD risk occurred with major histocompatibility complex (MHC) haplotype A*03:01~B*07:02~DRB1*15:01~DQA1*01:02~DQB1*06:02 (p = 9.6 x 10-4, odds ratio [OR] [95% confidence interval] = 1.21 [1.08-1.37]) in the combined UCSF + ADGC cohort. Secondary analysis suggested that this effect may be driven primarily by individuals who are negative for the established AD genetic risk factor, apolipoprotein E (APOE) ɛ4. Separate analyses of class I and II haplotypes further supported the role of class I haplotype A*03:01~B*07:02 (p = 0.03, OR = 1.11 [1.01-1.23]) and class II haplotype DRB1*15:01- DQA1*01:02- DQB1*06:02 (DR15) (p = 0.03, OR = 1.08 [1.01-1.15]) as risk factors for AD. We followed up these findings in the clinical dataset representing the spectrum of cognitively normal controls, individuals with mild cognitive impairment, and individuals with AD to assess their relevance to disease. Carrying A*03:01~B*07:02 was associated with higher CSF amyloid levels (p = 0.03, β ± standard error = 47.19 ± 21.78). We also found a dose-dependent association between the DR15 haplotype and greater rates of cognitive decline (greater impairment on the 11-item Alzheimer's Disease Assessment Scale cognitive subscale [ADAS11] over time [p = 0.03, β ± standard error = 0.7 ± 0.3]; worse forgetting score on the Rey Auditory Verbal Learning Test (RAVLT) over time [p = 0.02, β ± standard error = -0.2 ± 0.06]). In a subset of the same cohort, dose of DR15 was also associated with higher baseline levels of chemokine CC-4, a biomarker of inflammation (p = 0.005, β ± standard error = 0.08 ± 0.03). The main study limitations are that the results represent only individuals of European-ancestry and clinically diagnosed individuals, and that our study used imputed genotypes for a subset of HLA genes. CONCLUSIONS We provide evidence that variation in the HLA locus-including risk haplotype DR15-contributes to AD risk. DR15 has also been associated with multiple sclerosis, and its component alleles have been implicated in Parkinson disease and narcolepsy. Our findings thus raise the possibility that DR15-associated mechanisms may contribute to pan-neuronal disease vulnerability.
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Affiliation(s)
- Natasha Z. R. Steele
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
- University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Jessie S. Carr
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
- Gladstone Institute of Neurological Disease, San Francisco, California, United States of America
| | - Luke W. Bonham
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
- Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Ethan G. Geier
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Vincent Damotte
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Zachary A. Miller
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Rahul S. Desikan
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, United States of America
| | - Kevin L. Boehme
- Brigham Young University, Provo, Utah, United States of America
| | - Shubhabrata Mukherjee
- University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Paul K. Crane
- University of Washington School of Medicine, Seattle, Washington, United States of America
| | | | - Joel H. Kramer
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Bruce L. Miller
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Giovanni Coppola
- Departments of Neurology and Psychiatry, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Jill A. Hollenbach
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
| | - Yadong Huang
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
- Gladstone Institute of Neurological Disease, San Francisco, California, United States of America
- Department of Pathology, University of California, San Francisco, San Francisco, California, United States of America
| | - Jennifer S. Yokoyama
- Department of Neurology, University of California, San Francisco, San Francisco, California, United States of America
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8
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Monti D, Ostan R, Borelli V, Castellani G, Franceschi C. Inflammaging and human longevity in the omics era. Mech Ageing Dev 2016; 165:129-138. [PMID: 28038993 DOI: 10.1016/j.mad.2016.12.008] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/21/2016] [Indexed: 11/24/2022]
Abstract
Inflammaging is a recent theory of aging originally proposed in 2000 where data and conceptualizations regarding the aging of the immune system (immunosenescence) and the evolution of immune responses from invertebrates to mammals converged. This theory has received an increasing number of citations and experimental confirmations. Here we present an updated version of inflammaging focused on omics data - particularly on glycomics - collected on centenarians, semi-supercentenarians and their offspring. Accordingly, we arrived to the following conclusions: i) inflammaging has a structure where specific combinations of pro- and anti-inflammatory mediators are involved; ii) inflammaging is systemic and more complex than we previously thought, as many organs, tissues and cell types participate in producing pro- and anti-inflammatory stimuli defined "molecular garbage"; iii) inflammaging is dynamic, can be propagated locally to neighboring cells and systemically from organ to organ by circulating products and microvesicles, and amplified by chronic age-related diseases constituting a "local fire", which in turn produces additional inflammatory stimuli and molecular garbage; iv) an integrated Systems Medicine approach is urgently needed to let emerge a robust and highly informative set/combination of omics markers able to better grasp the complex molecular core of inflammaging in elderly and centenarians.
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Affiliation(s)
- Daniela Monti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Rita Ostan
- Interdepartmental Centre "L. Galvani" (CIG) and Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Vincenzo Borelli
- Interdepartmental Centre "L. Galvani" (CIG) and Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy
| | - Gastone Castellani
- Department of Physics and Astronomy DIFA, University of Bologna, Viale Berti Pichat 6/2, 40127, Bologna, Italy
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, Via Altura 3, 40139 Bologna, Italy
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9
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Payton A, Dawes P, Platt H, Morton CC, Moore DR, Massey J, Horan M, Ollier W, Munro KJ, Pendleton N. A role for HLA-DRB1*1101 and DRB1*0801 in cognitive ability and its decline with age. Am J Med Genet B Neuropsychiatr Genet 2016; 171B:209-14. [PMID: 26473500 DOI: 10.1002/ajmg.b.32393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 10/06/2015] [Indexed: 12/31/2022]
Abstract
Cognitive abilities (memory, processing speed, vocabulary, and fluid intelligence) are correlated with educational attainment and occupational status, as well as physical and mental health. The variation in cognitive abilities observed within a population has a substantial genetic contribution (heritability ∼50%) and yet the identification of genetic polymorphisms from both genome-wide association and candidate studies have to date only uncovered a limited number of genetic variants that exert small genetic effects. Here we impute human leukocyte antigens (HLA) using existing genome-wide association data from 1,559 non-pathological elderly volunteers who have been followed for changes in cognitive functioning between a 12- and 18-year period. Specifically, we investigate DRB1*05 (*11/*12) and DRB1*01, which have previously been associated with cognitive ability. We also analyze DRB1*0801, which shares close sequence homology with DRB1*1101. Together with DRB1*1101, DRB1*0801 has been associated with several diseases including multiple sclerosis and primary biliary cirrhosis, which themselves are associated with cognitive impairment. We observed that both DRB1*0801 and DRB1*1101 were significantly associated with vocabulary ability (cross-sectional and longitudinal scores) and that the effects were in opposite directions with DRB1*0801 associated with lower score and faster decline. This opposing affect is similar to that reported by other groups in systemic lupus erythematosus, type 1 diabetes, and primary biliary cirrhosis. DRB1*0801 was also significantly associated with reduced memory ability. We observed no associations between cognitive abilities and DRB1*01 or DRB1*12.
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Affiliation(s)
- Antony Payton
- Centre for Integrated Genomic Medical Research, The University of Manchester, Manchester, UK.,Human Communication and Deafness, School of Psychological Sciences, The University of Manchester, Manchester, UK
| | - Piers Dawes
- Human Communication and Deafness, School of Psychological Sciences, The University of Manchester, Manchester, UK
| | - Hazel Platt
- Centre for Integrated Genomic Medical Research, The University of Manchester, Manchester, UK
| | - Cynthia C Morton
- Human Communication and Deafness, School of Psychological Sciences, The University of Manchester, Manchester, UK.,Departments of Obstetrics, Gynecology and Reproductive Biology and Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - David R Moore
- Human Communication and Deafness, School of Psychological Sciences, The University of Manchester, Manchester, UK
| | - Jonathan Massey
- Arthritis Research UK Centre for Genetics and Genomics, Musculoskeletal Research Group, The University of Manchester, Manchester, UK
| | - Michael Horan
- Centre for Clinical and Cognitive Neuroscience, Institute of Brain Behaviour and Mental Health, Salford Royal NHS Hospital, The University of Manchester, Manchester, UK
| | - William Ollier
- Centre for Integrated Genomic Medical Research, The University of Manchester, Manchester, UK
| | - Kevin J Munro
- Human Communication and Deafness, School of Psychological Sciences, The University of Manchester, Manchester, UK
| | - Neil Pendleton
- Centre for Clinical and Cognitive Neuroscience, Institute of Brain Behaviour and Mental Health, Salford Royal NHS Hospital, The University of Manchester, Manchester, UK
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10
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Abstract
Recent published findings have shown that many proteins discovered in the immune system and residing on immune cells with well established immune-related functions are also found in neurons of the central nervous system. These studies have uncovered a rich variety of neuronal functions attributed to these immune proteins. This review will focus on two key interacting protein complexes that previously were known for adaptive immune reactions, the major histocompatability complex and the T-cell receptor complex. We will review where these immune proteins are expressed in the CNS and their neuronal function.
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Affiliation(s)
- Pragya Komal
- Department of Biology, Centre for Biomedical Research, University of Victoria, Canada
| | - Raad Nashmi
- Department of Biology, Centre for Biomedical Research, University of Victoria, Canada.
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Alzheimer's disease and HLA-A2: linking neurodegenerative to immune processes through an in silico approach. BIOMED RESEARCH INTERNATIONAL 2014; 2014:791238. [PMID: 25197660 PMCID: PMC4150521 DOI: 10.1155/2014/791238] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 07/08/2014] [Indexed: 01/04/2023]
Abstract
There is a controversial relationship between HLA-A2 and Alzheimer's disease (AD). It has been suggested a modifier effect on the risk that depends on genetic loadings. Thus, the aims of this study were to evaluate this relationship and to reveal genes associated with both concepts the HLA-A gene and AD. Consequently, we did first a classical systematic review and a meta-analysis of case-control studies. Next, by means of an in silico approach, we used experimental knowledge of protein-protein interactions to evaluate the top ranked genes shared by both concepts, previously found through text mining. The meta-analysis did not show a significant pooled OR (1.11, 95% CI: 0.98 to 1.24 in Caucasians), in spite of the fact that four of the included studies had a significant OR > 1 and none of them a significant OR < 1. In contrast, the in silico approach retrieved nonrandomly shared genes by both concepts (P = 0.02), which additionally encode truly interacting proteins. The network of proteins encoded by APP, ICAM-1, ITGB2, ITGAL, SELP, SELL, IL2, IL1B, CD4, and CD8A linked immune to neurodegenerative processes and highlighted the potential roles in AD pathogenesis of endothelial regulation, infectious diseases, specific antigen presentation, and HLA-A2 in maintaining synapses.
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Swaminathan S, Huentelman MJ, Corneveaux JJ, Myers AJ, Faber KM, Foroud T, Mayeux R, Shen L, Kim S, Turk M, Hardy J, Reiman EM, Saykin AJ. Analysis of copy number variation in Alzheimer's disease in a cohort of clinically characterized and neuropathologically verified individuals. PLoS One 2012; 7:e50640. [PMID: 23227193 PMCID: PMC3515604 DOI: 10.1371/journal.pone.0050640] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 10/23/2012] [Indexed: 11/22/2022] Open
Abstract
Copy number variations (CNVs) are genomic regions that have added (duplications) or deleted (deletions) genetic material. They may overlap genes affecting their function and have been shown to be associated with disease. We previously investigated the role of CNVs in late-onset Alzheimer's disease (AD) and mild cognitive impairment using Alzheimer's Disease Neuroimaging Initiative (ADNI) and National Institute of Aging-Late Onset AD/National Cell Repository for AD (NIA-LOAD/NCRAD) Family Study participants, and identified a number of genes overlapped by CNV calls. To confirm the findings and identify other potential candidate regions, we analyzed array data from a unique cohort of 1617 Caucasian participants (1022 AD cases and 595 controls) who were clinically characterized and whose diagnosis was neuropathologically verified. All DNA samples were extracted from brain tissue. CNV calls were generated and subjected to quality control (QC). 728 cases and 438 controls who passed all QC measures were included in case/control association analyses including candidate gene and genome-wide approaches. Rates of deletions and duplications did not significantly differ between cases and controls. Case-control association identified a number of previously reported regions (CHRFAM7A, RELN and DOPEY2) as well as a new gene (HLA-DRA). Meta-analysis of CHRFAM7A indicated a significant association of the gene with AD and/or MCI risk (P = 0.006, odds ratio = 3.986 (95% confidence interval 1.490-10.667)). A novel APP gene duplication was observed in one case sample. Further investigation of the identified genes in independent and larger samples is warranted.
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Affiliation(s)
- Shanker Swaminathan
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Matthew J. Huentelman
- Neurogenomics Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- The Arizona Alzheimer's Consortium, Phoenix, Arizona, United States of America
| | - Jason J. Corneveaux
- Neurogenomics Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- The Arizona Alzheimer's Consortium, Phoenix, Arizona, United States of America
| | - Amanda J. Myers
- Departments of Psychiatry and Behavioral Sciences, and Human Genetics and Genomics, University of Miami, Miller School of Medicine, Miami, Florida, United States of America
- Johnnie B. Byrd Sr. Alzheimer's Center and Research Institute, Tampa, Florida, United States of America
| | - Kelley M. Faber
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Tatiana Foroud
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Richard Mayeux
- The Gertrude H. Sergievsky Center, The Taub Institute for Research on Alzheimer's Disease and the Aging Brain, and the Department of Neurology, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
| | - Li Shen
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Sungeun Kim
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Mari Turk
- Neurogenomics Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- The Arizona Alzheimer's Consortium, Phoenix, Arizona, United States of America
| | - John Hardy
- Department of Molecular Neuroscience and Reta Lila Research Laboratories, University College London Institute of Neurology, London, United Kingdom
| | - Eric M. Reiman
- Neurogenomics Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- The Arizona Alzheimer's Consortium, Phoenix, Arizona, United States of America
- Banner Alzheimer’s Institute, Phoenix, Arizona, United States of America
| | - Andrew J. Saykin
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
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Abstract
Human leukocyte antigen (HLA) class I molecules are involved in the presentation of antigenic peptides to CD8(+) cytotoxic T lymphocytes (CTLs), which is important for the development of cellular immunity during viral infections and in cancers. HLA-A2 is one of the most frequent HLA class I specificities and thus is extensively studied structurally and functionally. Since its discovery, more than 300 allelic variants of this HLA specificity have been recorded. Among the HLA-A2 allelic variants, HLA-A*02:01 is the most prevalent, hence commonly used as a model to study HLA-A2-restricted CTL responses. However, HLA-A2 alleles are unevenly distributed globally such that HLA-A2 allelic variants besides A*02:01 are expressed at considerably high frequencies in Asian and African populations. Furthermore, increasing evidence of variations in the peptide-binding repertoire and CTL responses among HLA-A2 allelic variants suggests the need to understand these differences among various frequently expressed HLA-A2 molecules. In this review, the structural and functional distinctiveness of HLA-A2 allelic variants will be discussed.
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Ribic A, Flügge G, Schlumbohm C, Mätz-Rensing K, Walter L, Fuchs E. Activity-dependent regulation of MHC class I expression in the developing primary visual cortex of the common marmoset monkey. Behav Brain Funct 2011; 7:1. [PMID: 21205317 PMCID: PMC3023691 DOI: 10.1186/1744-9081-7-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Accepted: 01/04/2011] [Indexed: 01/31/2023] Open
Abstract
Background Several recent studies have highlighted the important role of immunity-related molecules in synaptic plasticity processes in the developing and adult mammalian brains. It has been suggested that neuronal MHCI (major histocompatibility complex class I) genes play a role in the refinement and pruning of synapses in the developing visual system. As a fast evolutionary rate may generate distinct properties of molecules in different mammalian species, we studied the expression of MHCI molecules in a nonhuman primate, the common marmoset monkey (Callithrix jacchus). Methods and results Analysis of expression levels of MHCI molecules in the developing visual cortex of the common marmoset monkeys revealed a distinct spatio-temporal pattern. High levels of expression were detected very early in postnatal development, at a stage when synaptogenesis takes place and ocular dominance columns are formed. To determine whether the expression of MHCI molecules is regulated by retinal activity, animals were subjected to monocular enucleation. Levels of MHCI heavy chain subunit transcripts in the visual cortex were found to be elevated in response to monocular enucleation. Furthermore, MHCI heavy chain immunoreactivity revealed a banded pattern in layer IV of the visual cortex in enucleated animals, which was not observed in control animals. This pattern of immunoreactivity indicated that higher expression levels were associated with retinal activity coming from the intact eye. Conclusions These data demonstrate that, in the nonhuman primate brain, expression of MHCI molecules is regulated by neuronal activity. Moreover, this study extends previous findings by suggesting a role for neuronal MHCI molecules during synaptogenesis in the visual cortex.
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Affiliation(s)
- Adema Ribic
- German Primate Center/Leibniz Institute for Primate Research, Göttingen, Germany.
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Guerini FR, Tinelli C, Calabrese E, Agliardi C, Zanzottera M, De Silvestri A, Franceschi M, Grimaldi LME, Nemni R, Clerici M. HLA-A*01 is associated with late onset of Alzheimer's disease in Italian patients. Int J Immunopathol Pharmacol 2010; 22:991-9. [PMID: 20074462 DOI: 10.1177/039463200902200414] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
In this study, the distribution of HLA-A alleles was analyzed in Italian Alzheimer's Disease (AD)patients. Interaction between HLA alleles, APOE genotypes, age of onset, and gender were also analyzed. The results were compared to those obtained in healthy controls (HC). One hundred-seventy-three AD patients and 258 age-and-sex-matched healthy controls were enrolled in the study. AD patients were classified according to age at the onset of disease using quartiles of the distribution. HLA-A genotyping was performed by PCR-SSP; APOE genotyping was performed by RFLP. A correlation between late disease onset and HLA-A*01 was observed. Thus, HLA-A*01, calculated as number of alleles, was significantly more present in patients with age of onset > 74.0 years than in HC (20% vs 10.5%; p=0.014); the distribution of this allele was skewed also in patients 68.1-74 years of age (16.3%), even if the difference did not reach statistical significance. The relative risk ratio (RRR) of AD onset calculated by a multinomial logistic regression adjusted for sex and presence of APOE-4 confirmed a significant association of HLA-A*01 with AD onset > 74.0 years of age (RRR=2.2; 95%CI: 1.1-4.6; p=0.033). A high RRR (2.04) was also present in patients 68.1-74 years (p=0.064). Lower age of disease onset did not correlate with HLA-A*01. Data herein suggest that the presence of HLA-A*01 results in delayed AD development, even in patients carrying APOE-4. These results could offer new insights into the etiopathogenesis of Alzheimer's disease.
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Affiliation(s)
- F R Guerini
- Laboratory of Molecular Medicine and Biotechnology, Don C. Gnocchi Foundation IRCCS, Milan, Italy
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Correia AP, Pinto JP, Dias V, Mascarenhas C, Almeida S, Porto G. CAT53 and HFE alleles in Alzheimer's disease: A putative protective role of the C282Y HFE mutation. Neurosci Lett 2009; 457:129-32. [DOI: 10.1016/j.neulet.2009.03.088] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Revised: 03/25/2009] [Accepted: 03/27/2009] [Indexed: 12/30/2022]
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Feng C, Putonti C, Zhang M, Eggers R, Mitra R, Hogan M, Jayaraman K, Fofanov Y. Ultraspecific probes for high throughput HLA typing. BMC Genomics 2009; 10:85. [PMID: 19232123 PMCID: PMC2661095 DOI: 10.1186/1471-2164-10-85] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Accepted: 02/20/2009] [Indexed: 11/23/2022] Open
Abstract
Background The variations within an individual's HLA (Human Leukocyte Antigen) genes have been linked to many immunological events, e.g. susceptibility to disease, response to vaccines, and the success of blood, tissue, and organ transplants. Although the microarray format has the potential to achieve high-resolution typing, this has yet to be attained due to inefficiencies of current probe design strategies. Results We present a novel three-step approach for the design of high-throughput microarray assays for HLA typing. This approach first selects sequences containing the SNPs present in all alleles of the locus of interest and next calculates the number of base changes necessary to convert a candidate probe sequences to the closest subsequence within the set of sequences that are likely to be present in the sample including the remainder of the human genome in order to identify those candidate probes which are "ultraspecific" for the allele of interest. Due to the high specificity of these sequences, it is possible that preliminary steps such as PCR amplification are no longer necessary. Lastly, the minimum number of these ultraspecific probes is selected such that the highest resolution typing can be achieved for the minimal cost of production. As an example, an array was designed and in silico results were obtained for typing of the HLA-B locus. Conclusion The assay presented here provides a higher resolution than has previously been developed and includes more alleles than previously considered. Based upon the in silico and preliminary experimental results, we believe that the proposed approach can be readily applied to any highly polymorphic gene system.
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Affiliation(s)
- Chen Feng
- Department of Computer Science, University of Houston, Houston, TX, USA.
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Meyer O, Agaylan A, Schönemann C, Kiesewetter H, Salama A. Application of the particle gel agglutination assay in the typing of single human leucocyte antigens. TISSUE ANTIGENS 2008; 71:157-159. [PMID: 18005089 DOI: 10.1111/j.1399-0039.2007.00974.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We describe a simple and rapid particle gel agglutination assay (PaGIA) for typing of the human leucocyte antigens (HLA) HLA-A2, HLA-B7 and HLA-B27. Superparamagnetic streptavidin particles were coated with biotinylated monoclonal antibodies (MoAbs) to HLA-A2, HLA-B7 and HLA-B27. Anticoagulated whole blood samples from healthy blood donors (n = 118) with known HLA patterns were incubated with MoAb-coated particles, transferred into a standard ID-gel card, and subsequently centrifuged. Samples were evaluated macroscopically, with antigen-positive samples resulting in a visible agglutination reaction. A clear distinction could be made between all positive and negative samples tested. Fifty-seven samples were found to be positive for HLA-A2 (48%), 26 samples for HLA-B7 (22%) and 5 samples for HLA-B27 (4%).
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Affiliation(s)
- O Meyer
- Charité-Universitätsmedizin Berlin, Institut für Transfusionsmedizin, Berlin, Germany
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