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Ho BX, Teo AKK, Ng NHJ. Innovations in bio-engineering and cell-based approaches to address immunological challenges in islet transplantation. Front Immunol 2024; 15:1375177. [PMID: 38650946 PMCID: PMC11033429 DOI: 10.3389/fimmu.2024.1375177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/11/2024] [Indexed: 04/25/2024] Open
Abstract
Human allogeneic pancreatic islet transplantation is a life-changing treatment for patients with severe Type 1 Diabetes (T1D) who suffer from hypoglycemia unawareness and high risk of severe hypoglycemia. However, intensive immunosuppression is required to prevent immune rejection of the graft, that may in turn lead to undesirable side effects such as toxicity to the islet cells, kidney toxicity, occurrence of opportunistic infections, and malignancies. The shortage of cadaveric human islet donors further limits islet transplantation as a treatment option for widespread adoption. Alternatively, porcine islets have been considered as another source of insulin-secreting cells for transplantation in T1D patients, though xeno-transplants raise concerns over the risk of endogenous retrovirus transmission and immunological incompatibility. As a result, technological advancements have been made to protect transplanted islets from immune rejection and inflammation, ideally in the absence of chronic immunosuppression, to improve the outcomes and accessibility of allogeneic islet cell replacement therapies. These include the use of microencapsulation or macroencapsulation devices designed to provide an immunoprotective environment using a cell-impermeable layer, preventing immune cell attack of the transplanted cells. Other up and coming advancements are based on the use of stem cells as the starting source material for generating islet cells 'on-demand'. These starting stem cell sources include human induced pluripotent stem cells (hiPSCs) that have been genetically engineered to avoid the host immune response, curated HLA-selected donor hiPSCs that can be matched with recipients within a given population, and multipotent stem cells with natural immune privilege properties. These strategies are developed to provide an immune-evasive cell resource for allogeneic cell therapy. This review will summarize the immunological challenges facing islet transplantation and highlight recent bio-engineering and cell-based approaches aimed at avoiding immune rejection, to improve the accessibility of islet cell therapy and enhance treatment outcomes. Better understanding of the different approaches and their limitations can guide future research endeavors towards developing more comprehensive and targeted strategies for creating a more tolerogenic microenvironment, and improve the effectiveness and sustainability of islet transplantation to benefit more patients.
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Affiliation(s)
- Beatrice Xuan Ho
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- BetaLife Pte Ltd, Singapore, Singapore
| | - Adrian Kee Keong Teo
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Precision Medicine Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Natasha Hui Jin Ng
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
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Sandi JD, Levy JI, Tapela K, Zeller M, Yeboah JA, Saka DF, Grant DS, Awandare GA, Quashie PK, Andersen KG, Paemka L. Upper Airway Epithelial Tissue Transcriptome Analysis Reveals Immune Signatures Associated with COVID-19 Severity in Ghanaians. J Immunol Res 2024; 2024:6668017. [PMID: 38375062 PMCID: PMC10876312 DOI: 10.1155/2024/6668017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/04/2023] [Accepted: 01/03/2024] [Indexed: 02/21/2024] Open
Abstract
The immunological signatures driving the severity of coronavirus disease 19 (COVID-19) in Ghanaians remain poorly understood. We performed bulk transcriptome sequencing of nasopharyngeal samples from severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-infected Ghanaians with mild and severe COVID-19, as well as healthy controls to characterize immune signatures at the primary SARS-CoV-2 infection site and identify drivers of disease severity. Generally, a heightened antiviral response was observed in SARS-CoV-2-infected Ghanaians compared with uninfected controls. COVID-19 severity was associated with immune suppression, overexpression of proinflammatory cytokines, including CRNN, IL1A, S100A7, and IL23A, and activation of pathways involved in keratinocyte proliferation. SAMD9L was among the differentially regulated interferon-stimulated genes in our mild and severe disease cohorts, suggesting that it may play a critical role in SARS-CoV-2 pathogenesis. By comparing our data with a publicly available dataset from a non-African (Indians) (GSE166530), an elevated expression of antiviral response-related genes was noted in COVID-19-infected Ghanaians. Overall, the study describes immune signatures driving COVID-19 severity in Ghanaians and identifies immune drivers that could serve as potential prognostic markers for future outbreaks or pandemics. It further provides important preliminary evidence suggesting differences in antiviral response at the upper respiratory interface in sub-Saharan Africans (Ghanaians) and non-Africans, which could be contributing to the differences in disease outcomes. Further studies using larger datasets from different populations will expand on these findings.
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Affiliation(s)
- John Demby Sandi
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Faculty of Laboratory Medicine, College of Medicine and Allied Health Sciences, University of Sierra Leone, Freetown, Sierra Leone
- Kenema Government Hospital, Kenema, Sierra Leone
| | - Joshua I. Levy
- Department of Immunology and Microbiology, The Scripps Research Institute, San Diego, California 92037, USA
| | - Kesego Tapela
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Mark Zeller
- Department of Immunology and Microbiology, The Scripps Research Institute, San Diego, California 92037, USA
| | - Joshua Afari Yeboah
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Daniel Frimpong Saka
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Donald S. Grant
- Faculty of Laboratory Medicine, College of Medicine and Allied Health Sciences, University of Sierra Leone, Freetown, Sierra Leone
- Kenema Government Hospital, Kenema, Sierra Leone
| | - Gordon A. Awandare
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Peter K. Quashie
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Kristian G. Andersen
- Department of Immunology and Microbiology, The Scripps Research Institute, San Diego, California 92037, USA
| | - Lily Paemka
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology (BCMB), School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
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Haq IU, Krukiewicz K, Tayyab H, Khan I, Khan M, Yahya G, Cavalu S. Molecular Understanding of ACE-2 and HLA-Conferred Differential Susceptibility to COVID-19: Host-Directed Insights Opening New Windows in COVID-19 Therapeutics. J Clin Med 2023; 12:jcm12072645. [PMID: 37048725 PMCID: PMC10095019 DOI: 10.3390/jcm12072645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/09/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
The genetic variants of HLAs (human leukocyte antigens) play a crucial role in the virus–host interaction and pathology of COVID-19. The genetic variants of HLAs not only influence T cell immune responses but also B cell immune responses by presenting a variety of peptide fragments of invading pathogens. Peptide cocktail vaccines produced by using various conserved HLA-A2 epitopes provoke substantial specific CD8+ T cell responses in experimental animals. The HLA profiles vary among individuals and trigger different T cell-mediated immune responses in COVID-19 infections. Those with HLA-C*01 and HLA-B*44 are highly susceptible to the disease. However, HLA-A*02:01, HLA-DR*03:01, and HLA-Cw*15:02 alleles show resistance to SARS infection. Understanding the genetic association of HLA with COVID-19 susceptibility and severity is important because it can help in studying the transmission of COVID-19 and its physiopathogenesis. The HLA-C*01 and B*44 allele pathways can be studied to gain insight into disease transmission and physiopathogenesis. Therefore, integrating HLA testing is suggested in the ongoing pandemic, which will help in the rapid identification of highly susceptible populations worldwide and possibly acclimate vaccine development. Therefore, understanding the correlation between HLA and SARS-CoV-2 is critical in opening new insights into COVID-19 therapeutics, based on previous studies conducted.
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Affiliation(s)
- Ihtisham Ul Haq
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland
- Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad 44000, Pakistan
- Joint Doctoral School, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Katarzyna Krukiewicz
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland
- Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Hamnah Tayyab
- Department of Internal Medicine, King Edward Medical College, Lahore 54000, Pakistan
| | - Imran Khan
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle, Germany
| | - Mehtab Khan
- Department of Biology, University of Moncton, Moncton, NB E1A 3E9, Canada
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
- Department of Molecular Genetics, Faculty of Biology, Technical University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
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Xi P, Wang H, Zhong Z, Liu S, Tang J, Guo C, Dai P. rs144012689 is a highly specific representative marker of HLA-B*15:02 in the Chinese population. Pharmacogenomics 2022; 23:835-845. [PMID: 36169168 DOI: 10.2217/pgs-2022-0075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objective: To develop an accurate and rapid real-time PCR technique for HLA-B*15:02 genotyping and investigate HLA-B*15:02 allele frequency in four ethnic populations in China. Materials & methods: Based on the highly specific representative markers, a real-time PCR assay was developed for HLA-B*15:02 genotyping, and HLA-B*15:02 allele frequencies were screened in four ethnic populations of China. Sequence-based typing was used to validate the accuracy of the assay. Results: The sensitivity and specificity of the assay were 100%, and the detection limit was 0.2 ng. The frequency of HLA-B*15:02 alleles distributed in the Bouyei population was significantly higher than in the Han group (p < 0.01). Neither the Tibetan nor the Uyghur population carried the HLA-B*15:02 haplotype. Conclusion: The authors developed an accurate HLA-B*15:02 genotyping method for evaluating the risk of adverse drug reactions induced by carbamazepine in various ethnic populations in China.
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Affiliation(s)
- Pei Xi
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China.,Shaanxi Lifegen Co.,Ltd, Building 1, Collaborative Innovation Port, Fengdong New City, Xixian New Area, Xi'an, Shaanxi Province, 712000, China
| | - Hao Wang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China
| | - Zihua Zhong
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China
| | - Shihui Liu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China
| | - Jiaxuan Tang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China
| | - Chunli Guo
- Pulmonary and Critical Care Medicine, Tongchuan People's Hospital, Tongchuan, Shaanxi Province, People's Republic of China
| | - Penggai Dai
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, Shaanxi Province, 710069, China.,Shaanxi Lifegen Co.,Ltd, Building 1, Collaborative Innovation Port, Fengdong New City, Xixian New Area, Xi'an, Shaanxi Province, 712000, China
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Vigón L, Galán M, Torres M, Martín-Galiano AJ, Rodríguez-Mora S, Mateos E, Corona M, Malo R, Navarro C, Murciano-Antón MA, García-Gutiérrez V, Planelles V, Martínez-Laso J, López-Huertas MR, Coiras M. Association between HLA-C alleles and COVID-19 severity in a pilot study with a Spanish Mediterranean Caucasian cohort. PLoS One 2022; 17:e0272867. [PMID: 35960731 PMCID: PMC9374209 DOI: 10.1371/journal.pone.0272867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/27/2022] [Indexed: 12/15/2022] Open
Abstract
The clinical presentations of COVID-19 may range from an asymptomatic or mild infection to a critical or fatal disease. Several host factors such as elderly age, male gender, and previous comorbidities seem to be involved in the most severe outcomes, but also an impaired immune response that causes a hyperinflammatory state but is unable to clear the infection. In order to get further understanding about this impaired immune response, we aimed to determine the association of specific HLA alleles with different clinical presentations of COVID-19. Therefore, we analyzed HLA Class I and II, as well as KIR gene sequences, in 72 individuals with Spanish Mediterranean Caucasian ethnicity who presented mild, severe, or critical COVID-19, according to their clinical characteristics and management. This cohort was recruited in Madrid (Spain) during the first and second pandemic waves between April and October 2020. There were no significant differences in HLA-A or HLA-B alleles among groups. However, despite the small sample size, we found that HLA-C alleles from group C1 HLA-C*08:02, -C*12:03, or -C*16:01 were more frequently associated in individuals with mild COVID-19 (43.8%) than in individuals with severe (8.3%; p = 0.0030; pc = 0.033) and critical (16.1%; p = 0.0014; pc = 0.0154) disease. C1 alleles are supposed to be highly efficient to present peptides to T cells, and HLA-C*12:03 may present a high number of verified epitopes from abundant SARS-CoV-2 proteins M, N, and S, thereby being allegedly able to trigger an efficient antiviral response. On the contrary, C2 alleles are usually poorly expressed on the cell surface due to low association with β2-microglobulin (β2M) and peptides, which may impede the adequate formation of stable HLA-C/β2M/peptide heterotrimers. Consequently, this pilot study described significant differences in the presence of specific HLA-C1 alleles in individuals with different clinical presentations of COVID-19, thereby suggesting that HLA haplotyping could be valuable to get further understanding in the underlying mechanisms of the impaired immune response during critical COVID-19.
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Affiliation(s)
- Lorena Vigón
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Galán
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Montserrat Torres
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio J. Martín-Galiano
- Intrahospital Infections Laboratory, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Sara Rodríguez-Mora
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Madrid, Spain
| | - Elena Mateos
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Madrid, Spain
| | - Magdalena Corona
- Hematology Service, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Rosa Malo
- Neumology Service, Hospital Universitario Puerta de Hierro, Majadahonda, Spain
| | | | | | | | - Vicente Planelles
- Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, Utah, United States of America
| | - Jorge Martínez-Laso
- Immunogenetic Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - María Rosa López-Huertas
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Madrid, Spain
| | - Mayte Coiras
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Madrid, Spain
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A chimeric HLA-A2:β2M:Ig fusion protein for the study of virus-specific CD8 + T-cells. J Immunol Methods 2021; 492:112997. [PMID: 33600818 DOI: 10.1016/j.jim.2021.112997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 10/22/2022]
Abstract
INTRODUCTION The response mediated by CD8+ T-cells in the context of infection and vaccination has been thoroughly investigated and represents one of the most important branches that allow for the development of immunity against intracellular pathogens and, thus, the establishment of robust antiviral responses. However, there is a lack of methods to assess antigen-specific CD8+ T-cells. OBJECTIVE Search for the ideal assays to assess the function of antigen-specific CD8+ T-cells. METHODS In the present study a chimeric HLA-A2:β2M:Ig fusion protein was produced, purified, and evaluated in functional CD8+ T-cell response studies using samples from Influenza A patients and humanized mice upon adenoviral vaccination. RESULTS The HLA-A2:β2M:Ig molecule, bound to immunodominant viral peptides by passive transfer, was able to induce robust antiviral CD8+ T-cell responses mediated by IFN-γ. The in vitro IFN-γ release assay using the chimeric HLA-A2:β2M:Ig fusion protein detected bona fide human CD8+ T-cells, demonstrating superior production of IFN-γ by human CD8+ T-cells induced by Influenza A immunodominant GILGFVFTL peptide. Removal of antigen-presenting cells and CD8+ T-cell enrichment improved significantly the IFN-γ production. The chimeric HLA-A2:β2M:Ig fusion protein also triggered HLA-A2-restricted CD8+ T-cell response in a humanized mouse model upon vaccination with adenovirus encoding HLA-A2-restricted HIV p24 antigen. The results strongly suggest the use of tailor-made assays for detecting HLA-A2-restricted CD8+ T-cell Responses in the Humanized Mouse Model. CONCLUSION The chimeric HLA-A2:β2M:Ig fusion protein-based assays provided a sensitive tool that may be paramount to measure virus-specific CD8+ T-cell response in a range of viral infections of clinical relevance.
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The Potential of Soluble Human Leukocyte Antigen Molecules for Early Cancer Detection and Therapeutic Vaccine Design. Vaccines (Basel) 2020; 8:vaccines8040775. [PMID: 33353014 PMCID: PMC7766713 DOI: 10.3390/vaccines8040775] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/02/2020] [Accepted: 12/11/2020] [Indexed: 01/08/2023] Open
Abstract
Human leukocyte antigen (HLA) molecules are essential for anti-tumor immunity, as they display tumor-derived peptides to drive tumor eradication by cytotoxic T lymphocytes. HLA molecules are primarily studied as peptide-loaded complexes on cell membranes (mHLA) and much less attention is given to their secretion as soluble HLA–peptide complexes (sHLA) into bodily fluids. Yet sHLA levels are altered in various pathologies including cancer, and are thus of high interest as biomarkers. Disconcordance in results across studies, however, hampers interpretation and generalization of the relationship between sHLA levels and cancer presence, thereby impairing its use as a biomarker. Furthermore, the question remains to what extent sHLA complexes exert immunomodulatory effects and whether shifts in sHLA levels contribute to disease or are only a consequence of disease. sHLA complexes can also bear tumor-derived peptides and recent advancements in mass spectrometry now permit closer sHLA peptide cargo analysis. sHLA peptide cargo may represent a “liquid biopsy” that could facilitate the use of sHLA for cancer diagnosis and target identification for therapeutic vaccination. This review aims to outline the contradictory and unexplored aspects of sHLA and to provide direction on how the full potential of sHLA as a quantitative and qualitative biomarker can be exploited.
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Wang X, Cao X, Zhang W, Zhang L, Lu L, Li X, El‐Ashram S, Wu J, Chen C. Association of human leukocyte antigens-DQB2/DPA1/DPB1 polymorphism and pulmonary tuberculosis in the Chinese Uygur population. Mol Genet Genomic Med 2019; 7:e544. [PMID: 30600606 PMCID: PMC6418356 DOI: 10.1002/mgg3.544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/01/2018] [Accepted: 12/02/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) is the second-leading cause of death globally. Genetic polymorphisms in human leukocyte antigens (HLA)-DQB2, HLA-DPA1, and HLA-DPB1 may partly explain individual differences in TB susceptibility. METHODS We performed a hospital-based case-control study to assess the genetic influence of single-nucleotide polymorphisms (SNPs) in the HLA (HLA-DPA, HLA-DPB, and HLA-DQB) on the development of TB. There were 248 TB-infected cases and 340 healthy controls in this study. RESULTS The HLA-DQB2 rs7453920 genotype GG was applied as the reference group, the GA genotype was related to a considerably magnified risk of TB (GA vs. GG: adjusted OR = 1.547, 95% CI = 1.039-2.304, p = 0.032). Nevertheless, the other two SNPs were not associated with TB risk. Stratified analyses suggested that tobacco was associated with an increased risk of TB in HLA-DQB2 rs7453920 G>A. CONCLUSION These results suggested that the functional HLA-DQB2 rs7453920 G>A polymorphism may contribute to the genetic susceptibility to TB. Nevertheless, the results were based on a limited sample size, and larger well-designed studies are expected to confirm these preliminary findings.
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Affiliation(s)
- Xue Wang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Xudong Cao
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Wanjiang Zhang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Le Zhang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Lijun Lu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Xinyue Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Saeed El‐Ashram
- College of Life Science and EngineeringFoshan UniversityFoshanChina
- Faculty of ScienceKafrelsheikh Universitykafr El-SheikhEgypt
| | - Jiangdong Wu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
| | - Chuangfu Chen
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases Cooperated by Education Ministry with Xinjiang ProvinceShihezi UniversityShiheziChina
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Crux NB, Elahi S. Human Leukocyte Antigen (HLA) and Immune Regulation: How Do Classical and Non-Classical HLA Alleles Modulate Immune Response to Human Immunodeficiency Virus and Hepatitis C Virus Infections? Front Immunol 2017; 8:832. [PMID: 28769934 PMCID: PMC5513977 DOI: 10.3389/fimmu.2017.00832] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 06/30/2017] [Indexed: 12/13/2022] Open
Abstract
The genetic factors associated with susceptibility or resistance to viral infections are likely to involve a sophisticated array of immune response. These genetic elements may modulate other biological factors that account for significant influence on the gene expression and/or protein function in the host. Among them, the role of the major histocompatibility complex in viral pathogenesis in particular human immunodeficiency virus (HIV) and hepatitis C virus (HCV), is very well documented. We, recently, added a novel insight into the field by identifying the molecular mechanism associated with the protective role of human leukocyte antigen (HLA)-B27/B57 CD8+ T cells in the context of HIV-1 infection and why these alleles act as a double-edged sword protecting against viral infections but predisposing the host to autoimmune diseases. The focus of this review will be reexamining the role of classical and non-classical HLA alleles, including class Ia (HLA-A, -B, -C), class Ib (HLA-E, -F, -G, -H), and class II (HLA-DR, -DQ, -DM, and -DP) in immune regulation and viral pathogenesis (e.g., HIV and HCV). To our knowledge, this is the very first review of its kind to comprehensively analyze the role of these molecules in immune regulation associated with chronic viral infections.
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Affiliation(s)
- Nicole B Crux
- Faculty of Medicine and Dentistry, Department of Dentistry, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine and Dentistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- Faculty of Medicine and Dentistry, Department of Dentistry, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine and Dentistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
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10
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Zou S, Song P, Meng H, Chen T, Chen J, Wen Z, Li Z, Li Z, Shi Y, Hu H. Association and meta-analysis of HLA and non-obstructive azoospermia in the Han Chinese population. Andrologia 2016; 49. [PMID: 27597543 DOI: 10.1111/and.12600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2016] [Indexed: 11/29/2022] Open
Abstract
The exact aetiology and pathogenesis of most non-obstructive azoospermia (NOA) are still unknown. The previous two genomewide association studies (GWASs) have identified three different loci within the HLA region for NOA in the Han Chinese population, including rs3129878, rs498422 and rs7194. To further validate the risk of three GWAS-linked loci for NOA, we conducted a case-control study of these three risk loci in an independent Han Chinese male population, with 603 NOA patients and 610 controls. Furthermore, we also performed a meta-analysis of five studies on these three NOA-risk loci. The case-control study strongly suggested a significant association between loci rs3129878, rs498422 and rs7194 and NOA (P = 6.75 × 10-21 (OR = 2.2586), P = 0.0060 (OR = 1.4013) and P = 0.0128 (OR = 1.2626) respectively). Our meta-analyses also supported the susceptibility of these three risk loci to NOA (P < 0.01). The risk variants within the HLA region potentially have a strong effect on males at risk of NOA, and may serve as diagnostic markers for male infertility. However, considering genetic difference between different populations, future validating studies in larger independent samples and animal experiments are suggested.
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Affiliation(s)
- S Zou
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - P Song
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - H Meng
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - T Chen
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - J Chen
- BIO-X Center, Shanghai Jiao Tong University, Shanghai, China
| | - Z Wen
- BIO-X Center, Shanghai Jiao Tong University, Shanghai, China
| | - Z Li
- BIO-X Center, Shanghai Jiao Tong University, Shanghai, China
| | - Z Li
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Y Shi
- BIO-X Center, Shanghai Jiao Tong University, Shanghai, China
| | - H Hu
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
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Ghio M, Contini P, Ansaldi F, Ubezio G, Setti M, Risso M, Tripodi G. Immunomodulation due to plasma or plasma-platelet apheresis donation: Events occurring during donation procedures. J Clin Apher 2014; 30:204-11. [DOI: 10.1002/jca.21362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 07/14/2014] [Accepted: 09/16/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Massimo Ghio
- Department of Internal Medicine; I.R.C.C.S. “A.O.U. San Martino-IST,”; Genova Italy
- University of Genoa; Viale Benedetto XV, 6 16132 Genova Italy
| | - Paola Contini
- Department of Internal Medicine; I.R.C.C.S. “A.O.U. San Martino-IST,”; Genova Italy
- University of Genoa; Viale Benedetto XV, 6 16132 Genova Italy
| | - Filippo Ansaldi
- University of Genoa; Viale Benedetto XV, 6 16132 Genova Italy
- Department of Health Sciences; I.R.C.C.S. “A.O.U. San Martino-IST,”; Genova Italy
| | - Gianluca Ubezio
- Department of Internal Medicine; I.R.C.C.S. “A.O.U. San Martino-IST,”; Genova Italy
- University of Genoa; Viale Benedetto XV, 6 16132 Genova Italy
| | - Maurizio Setti
- Department of Internal Medicine; I.R.C.C.S. “A.O.U. San Martino-IST,”; Genova Italy
- University of Genoa; Viale Benedetto XV, 6 16132 Genova Italy
| | - Marco Risso
- Immunohematology and Transfusion Centre; Institute Giannina Gaslini; Genova Italy
| | - Gino Tripodi
- Immunohematology and Transfusion Centre; Institute Giannina Gaslini; Genova Italy
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