1
|
Manczinger M, Kemény L. Peptide presentation by HLA-DQ molecules is associated with the development of immune tolerance. PeerJ 2018; 6:e5118. [PMID: 30002966 PMCID: PMC6034589 DOI: 10.7717/peerj.5118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/07/2018] [Indexed: 11/20/2022] Open
Abstract
HLA class II proteins are important elements of human adaptive immune recognition and are associated with numerous infectious and immune-mediated diseases. These highly variable molecules can be classified into DP, DQ and DR groups. It has been proposed that in contrast with DP and DR, epitope binding by DQ variants rather results in immune tolerance. However, the pieces of evidence are limited and controversial. We found that DQ molecules bind more human epitopes than DR. Pathogen-associated epitopes bound by DQ molecules are more similar to human proteins than the ones bound by DR. Accordingly, DQ molecules bind epitopes of significantly different pathogen species. Moreover, the binding of autoimmunity-associated epitopes by DQ confers protection from autoimmune diseases. Our results suggest a special role of HLA-DQ in immune homeostasis and help to better understand the association of HLA molecules with infectious and autoimmune diseases.
Collapse
Affiliation(s)
- Máté Manczinger
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary.,MTA-SZTE Dermatological Research Group, University of Szeged, Szeged, Hungary.,Synthetic and Systems Biology Unit, Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary.,MTA-SZTE Dermatological Research Group, University of Szeged, Szeged, Hungary
| |
Collapse
|
2
|
Aguilar-Medina M, Escamilla-Tilch M, Frías-Castro LO, Romero-Quintana G, Estrada-García I, Estrada-Parra S, Granados J, Arambula Meraz E, Sánchez-Schmitz G, Khader SA, Rangel-Moreno J, Ramos-Payán R. HLA Alleles are Genetic Markers for Susceptibility and Resistance towards Leprosy in a Mexican Mestizo Population. Ann Hum Genet 2016; 81:35-40. [PMID: 28025823 DOI: 10.1111/ahg.12183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/04/2016] [Indexed: 01/27/2023]
Abstract
Despite the use of multidrug therapy, leprosy remains endemic in some countries. The association of several human leucocyte antigen (HLA) alleles and gene polymorphisms with leprosy has been demonstrated in many populations, but the major immune contributors associated to the spectrum of leprosy have not been defined yet. In this study, genotyping of HLA-A, -B, -DR, and -DQ alleles was performed in leprosy patients (n = 113) and control subjects (n = 117) from the region with the highest incidence for the disease in México. The odds of developing leprosy and lepromatous subtype were 2.12- and 2.74-fold higher in carriers of HLA-A*28, and 2.48- and 4.14-fold higher for leprosy and dimorphic subtype in carriers of DQB1*06. Interestingly, DQB1*07 was overrepresented in healthy individuals, compared to patients with leprosy (OR = 0.08) and the lepromatous subtype (OR = 0.06). These results suggest that HLA-A*28 is a marker for predisposition to leprosy and the lepromatous subtype and DQB1*06 to leprosy and the dimorphic subtype, while DQB1*07 might be a resistance marker in this Mestizo population.
Collapse
Affiliation(s)
- Maribel Aguilar-Medina
- Faculty of Biological and Chemical Sciences, Autonomous University of Sinaloa, Culiacán, Sinaloa, Mexico
| | - Monica Escamilla-Tilch
- Division of Immunogenetics, National Institute of Medical Sciences and Nutrition, CDMX, Mexico
| | | | - Geovanni Romero-Quintana
- Faculty of Biological and Chemical Sciences, Autonomous University of Sinaloa, Culiacán, Sinaloa, Mexico
| | - Iris Estrada-García
- Department of Immunology, National School of Biological Science, National Polytechnic Institute, CDMX, Mexico
| | - Sergio Estrada-Parra
- Department of Immunology, National School of Biological Science, National Polytechnic Institute, CDMX, Mexico
| | - Julio Granados
- Division of Immunogenetics, National Institute of Medical Sciences and Nutrition, CDMX, Mexico
| | - Eliakym Arambula Meraz
- Faculty of Biological and Chemical Sciences, Autonomous University of Sinaloa, Culiacán, Sinaloa, Mexico
| | - Guzman Sánchez-Schmitz
- Division of Infectious Diseases, Boston Children's Hospital and Harvard Medical School, Harvard University, Boston, MA, USA
| | | | - Javier Rangel-Moreno
- Division of Allergy, Immunology and Rheumatology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, NY, USA
| | - Rosalío Ramos-Payán
- Faculty of Biological and Chemical Sciences, Autonomous University of Sinaloa, Culiacán, Sinaloa, Mexico
| |
Collapse
|
3
|
Tatari-Calderone Z, Gordish-Dressman H, Fasano R, Riggs M, Fortier C, Campbell AD, Charron D, Gordeuk VR, Luban NLC, Vukmanovic S, Tamouza R. Protective effect of HLA-DQB1 alleles against alloimmunization in patients with sickle cell disease. Hum Immunol 2016; 77:35-40. [PMID: 26476208 PMCID: PMC4747802 DOI: 10.1016/j.humimm.2015.10.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/06/2015] [Accepted: 10/10/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND Alloimmunization or the development of alloantibodies to Red Blood Cell (RBC) antigens is considered one of the major complications after RBC transfusions in patients with sickle cell disease (SCD) and can lead to both acute and delayed hemolytic reactions. It has been suggested that polymorphisms in HLA genes, may play a role in alloimmunization. We conducted a retrospective study analyzing the influence of HLA-DRB1 and DQB1 genetic diversity on RBC-alloimmunization. STUDY DESIGN Two-hundred four multi-transfused SCD patients with and without RBC-alloimmunization were typed at low/medium resolution by PCR-SSO, using IMGT-HLA Database. HLA-DRB1 and DQB1 allele frequencies were analyzed using logistic regression models, and global p-value was calculated using multiple logistic regression. RESULTS While only trends towards associations between HLA-DR diversity and alloimmunization were observed, analysis of HLA-DQ showed that HLA-DQ2 (p=0.02), -DQ3 (p=0.02) and -DQ5 (p=0.01) alleles were significantly higher in non-alloimmunized patients, likely behaving as protective alleles. In addition, multiple logistic regression analysis showed both HLA-DQ2/6 (p=0.01) and HLA-DQ5/5 (p=0.03) combinations constitute additional predictor of protective status. CONCLUSION Our data suggest that particular HLA-DQ alleles influence the clinical course of RBC transfusion in patients with SCD, which could pave the way towards predictive strategies.
Collapse
Affiliation(s)
- Zohreh Tatari-Calderone
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue, N.W., Washington, DC, United States; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.
| | - Heather Gordish-Dressman
- Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Center for Genetic Medicine Research, Children's National Health System, Washington, DC, United States
| | - Ross Fasano
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Division of Hematology and Oncology, Children's National Health System, Washington, DC, United States; Division of Laboratory Medicine, Children's National Medical Center, Washington, DC, United States
| | - Michael Riggs
- Department of Biostatistics, Cato Research, Durham, NC, United States
| | - Catherine Fortier
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France
| | - Andrew D Campbell
- Division of Pediatric Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI, United States
| | - Dominique Charron
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France
| | - Victor R Gordeuk
- Section of Hematology/Oncology, University of Illinois Comprehensive Sickle Cell Center, Chicago, IL, United States
| | - Naomi L C Luban
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Division of Hematology and Oncology, Children's National Health System, Washington, DC, United States; Division of Laboratory Medicine, Children's National Medical Center, Washington, DC, United States
| | - Stanislav Vukmanovic
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue, N.W., Washington, DC, United States; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Ryad Tamouza
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France.
| |
Collapse
|
4
|
Bobosha K, Wilson L, van Meijgaarden KE, Bekele Y, Zewdie M, van der Ploeg- van Schip JJ, Abebe M, Hussein J, Khadge S, Neupane KD, Hagge DA, Jordanova ES, Aseffa A, Ottenhoff THM, Geluk A. T-cell regulation in lepromatous leprosy. PLoS Negl Trop Dis 2014; 8:e2773. [PMID: 24722473 PMCID: PMC3983090 DOI: 10.1371/journal.pntd.0002773] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 02/19/2014] [Indexed: 12/12/2022] Open
Abstract
Regulatory T (Treg) cells are known for their role in maintaining self-tolerance and balancing immune reactions in autoimmune diseases and chronic infections. However, regulatory mechanisms can also lead to prolonged survival of pathogens in chronic infections like leprosy and tuberculosis (TB). Despite high humoral responses against Mycobacterium leprae (M. leprae), lepromatous leprosy (LL) patients have the characteristic inability to generate T helper 1 (Th1) responses against the bacterium. In this study, we investigated the unresponsiveness to M. leprae in peripheral blood mononuclear cells (PBMC) of LL patients by analysis of IFN-γ responses to M. leprae before and after depletion of CD25+ cells, by cell subsets analysis of PBMC and by immunohistochemistry of patients' skin lesions. Depletion of CD25+ cells from total PBMC identified two groups of LL patients: 7/18 (38.8%) gained in vitro responsiveness towards M. leprae after depletion of CD25+ cells, which was reversed to M. leprae-specific T-cell unresponsiveness by addition of autologous CD25+ cells. In contrast, 11/18 (61.1%) remained anergic in the absence of CD25+ T-cells. For both groups mitogen-induced IFN-γ was, however, not affected by depletion of CD25+ cells. In M. leprae responding healthy controls, treated lepromatous leprosy (LL) and borderline tuberculoid leprosy (BT) patients, depletion of CD25+ cells only slightly increased the IFN-γ response. Furthermore, cell subset analysis showed significantly higher (p = 0.02) numbers of FoxP3+ CD8+CD25+ T-cells in LL compared to BT patients, whereas confocal microscopy of skin biopsies revealed increased numbers of CD68+CD163+ as well as FoxP3+ cells in lesions of LL compared to tuberculoid and borderline tuberculoid leprosy (TT/BT) lesions. Thus, these data show that CD25+ Treg cells play a role in M. leprae-Th1 unresponsiveness in LL. Leprosy is a curable infectious disease caused by Mycobacterium leprae (M. leprae) that affects the skin and peripheral nerves. It is manifested in different forms ranging from self-healing, tuberculoid leprosy (TT) with low bacillary load and high cellular immunity against M. leprae, to lepromatous leprosy (LL) with high bacillary load and high antibody titers to M. leprae antigens. However, LL patients have poor cell mediated response against M. leprae leading to delayed clearance of the bacilli. A possible explanation for this bacterial persistence could lie in the presence of more regulatory cells at infection sites and in peripheral blood. This study shows the recovery of the cell mediated response by depletion of CD25+ cells in a subset of LL patients, while another patient subset was not affected similarly. Moreover, an increased frequency of FoxP3+ T cells together with anti-inflammatory macrophages was observed in LL patients' skin biopsies. Thus, these data show that CD25+ Treg cells play a role in M. leprae-unresponsiveness in leprosy patients.
Collapse
Affiliation(s)
- Kidist Bobosha
- The Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
- * E-mail:
| | - Louis Wilson
- The Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Yonas Bekele
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
| | - Martha Zewdie
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
| | | | - Markos Abebe
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
| | - Jemal Hussein
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
| | - Saraswoti Khadge
- Mycobacterial Research Laboratory, Anandaban Hospital, Kathmandu, Nepal
| | - Kapil D. Neupane
- Mycobacterial Research Laboratory, Anandaban Hospital, Kathmandu, Nepal
| | - Deanna A. Hagge
- Mycobacterial Research Laboratory, Anandaban Hospital, Kathmandu, Nepal
| | - Ekaterina S. Jordanova
- The Dept. of Obstetrics and Gynaecology, Free University Amsterdam, Center for Gynaecologic Oncology, Amsterdam, The Netherlands
| | - Abraham Aseffa
- Armauer Hansen Research Institute and ALERT hospital, Addis Ababa, Ethiopia
| | - Tom H. M. Ottenhoff
- The Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Annemieke Geluk
- The Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
5
|
Singh R, Gupta P, Sharma PK, Ades EW, Hollingshead SK, Singh S, Lillard JW. Prediction and characterization of helper T-cell epitopes from pneumococcal surface adhesin A. Immunology 2014; 141:514-30. [PMID: 24138116 PMCID: PMC3956426 DOI: 10.1111/imm.12194] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 12/29/2022] Open
Abstract
Pneumococcal surface adhesin A (PsaA) is a multifunctional lipoprotein known to bind nasopharyngeal epithelial cells, and is significantly involved in bacterial adherence and virulence. Identification of PsaA peptides that optimally bind human leucocyte antigen (HLA) and elicit a potent immune response would be of great importance to vaccine development. However, this is hindered by the multitude of HLA polymorphisms in humans. To identify the conserved immunodominant epitopes, we used an experimental dataset of 28 PsaA synthetic peptides and in silico methods to predict specific peptide-binding to HLA and murine MHC class II molecules. We also characterized spleen and cervical lymph node (CLN) -derived T helper (Th) lymphocyte cytokine responses to these peptides after Streptococcus pneumoniae strain EF3030 challenge in mice. Individual, yet overlapping, peptides 15 amino acids in length revealed residues of PsaA that consistently caused the highest interferon-γ, interleukin-2 (IL-2), IL-5 and IL-17 responses and proliferation as well as moderate IL-10 and IL-4 responses by ex vivo re-stimulated splenic and CLN CD4⁺ T cells isolated from S. pneumoniae strain EF3030-challenged F1 (B6 × BALB/c) mice. In silico analysis revealed that peptides from PsaA may interact with a broad range of HLA-DP, -DQ and -DR alleles, due in part to regions lacking β-turns and asparagine endopeptidase sites. These data suggest that Th cell peptides (7, 19, 20, 22, 23 and 24) screened for secondary structures and MHC class II peptide-binding affinities can elicit T helper cytokine and proliferative responses to PsaA peptides.
Collapse
Affiliation(s)
- Rajesh Singh
- Department of Microbiology, Biochemistry, & Immunology, Morehouse School of MedicineAtlanta, GA, USA
| | - Pranav Gupta
- Department of Microbiology, Biochemistry, & Immunology, Morehouse School of MedicineAtlanta, GA, USA
| | - Praveen K Sharma
- Centre of Life Sciences, School of Natural Sciences, Central University of JharkhandRanchi, India
| | - Edwin W Ades
- Division of Bacterial Diseases, Centers for Disease Control and PreventionAtlanta, GA, USA
| | - Susan K Hollingshead
- Department of Microbiology, University of Alabama at Birmingham School of MedicineBirmingham, AL, USA
| | - Shailesh Singh
- Department of Microbiology, Biochemistry, & Immunology, Morehouse School of MedicineAtlanta, GA, USA
| | - James W Lillard
- Department of Microbiology, Biochemistry, & Immunology, Morehouse School of MedicineAtlanta, GA, USA
| |
Collapse
|
6
|
Singh R, Singh S, Sharma PK, Singh UP, Briles DE, Hollingshead SK, Lillard JW. Helper T cell epitope-mapping reveals MHC-peptide binding affinities that correlate with T helper cell responses to pneumococcal surface protein A. PLoS One 2010; 5:e9432. [PMID: 20195541 PMCID: PMC2828482 DOI: 10.1371/journal.pone.0009432] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Accepted: 02/02/2010] [Indexed: 01/02/2023] Open
Abstract
Understanding the requirements for protection against pneumococcal carriage and pneumonia will greatly benefit efforts in controlling these diseases. Several proteins and polysaccharide capsule have recently been implicated in the virulence of and protective immunity against Streptococcus pneumonia. Pneumococcal surface protein A (PspA) is highly conserved among S. pneumonia strains, inhibits complement activation, binds lactoferrin, elicits protective systemic immunity against pneumococcal infection, and is necessary for full pneumococcal virulence. Identification of PspA peptides that optimally bind human leukocyte antigen (HLA) would greatly contribute to global vaccine efforts, but this is hindered by the multitude of HLA polymorphisms. Here, we have used an experimental data set of 54 PspA peptides and in silico methods to predict peptide binding to HLA and murine major histocompatibility complex (MHC) class II. We also characterized spleen- and cervical lymph node (CLN)-derived helper T lymphocyte (HTL) cytokine responses to these peptides after S. pneumonia strain EF3030-challenge in mice. Individual, yet overlapping peptides, 15 amino acids in length revealed residues 199 to 246 of PspA (PspA199–246) consistently caused the greatest IFN-γ, IL-2, IL-5 and proliferation as well as moderate IL-10 and IL-4 responses by ex vivo stimulated splenic and CLN CD4+ T cells isolated from S. pneumonia strain EF3030-challeged F1 (B6×BALB/c) mice. IEDB, RANKPEP, SVMHC, MHCPred, and SYFPEITHI in silico analysis tools revealed peptides in PspA199–246 also interact with a broad range of HLA-DR, -DQ, and -DP allelles. These data suggest that predicted MHC class II-peptide binding affinities do not always correlate with T helper (Th) cytokine or proliferative responses to PspA peptides, but when used together with in vivo validation can be a useful tool to choose candidate pneumococcal HTL epitopes.
Collapse
Affiliation(s)
- Rajesh Singh
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Shailesh Singh
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Praveen K. Sharma
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Udai P. Singh
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, United States of America
| | - David E. Briles
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, United States of America
| | - Susan K. Hollingshead
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, United States of America
| | - James W. Lillard
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
- * E-mail:
| |
Collapse
|
7
|
El Marsafy S, Dosquet C, Coudert MC, Bensussan A, Carosella E, Gluckman E. Study of cord blood natural killer cell suppressor activity. Eur J Haematol 2001; 66:215-20. [PMID: 11380600 DOI: 10.1034/j.1600-0609.2001.066004215.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We tested the immunosuppressive effect of cord blood (CB) natural killer (NK) cells using highly purified CB NK cells in mixed lymphocyte cultures (MLC) containing autologous CB T cells as responders. Control cultures were done without NK cells. Our findings revealed that CB NK cells induced a dose-dependent inhibition of T lymphocyte proliferation as evidenced by decreased 3H-thymidine incorporation in MLC. The T cell alloproliferation was significantly decreased in the presence of an NK cell to responder cell ratio of 0.1, 0.2 or 0.4 compared with control cultures done without NK cells (p=0.02, 0.003 and 0.0002, respectively). T lymphocyte inhibition was also achieved using irradiated CB NK cells and still demonstrable on addition of disparate CB NK and T cells to the MLC. In agreement with previous reports, adult blood NK cells inhibited the alloreactive T cells in the MLC using adult T lymphocytes as responders. Compared to control cultures done without NK cells, statistically significant inhibition of 3H-thymidine incorporation in MLC was observed at a ratio of NK cells to responder cells ratio of 0.2 or 0.4 (p=0.02). To investigate the mechanism whereby CB NK cells can interfere with the development of alloreactive T cells in MLC, we measured the tumour necrosis factor-alpha (TNF-alpha) concentrations in MLC supernatants using NK cell-depleted or unseparated CB mononuclear cells (MNC) as responders. The results revealed significantly high levels of TNF-alpha in the absence of NK cells (p=0.007). We conclude that CB NK cells suppress alloreactive T lymphocytes as do their counterparts in adult blood. However, the high NK to T cell ratio in CB could contribute to a more marked suppressive potential compared to that in adult blood. The mechanism of NK-mediated inhibition is likely related to disruption of the TNF-alpha pathway of T-lymphocyte activation.
Collapse
Affiliation(s)
- S El Marsafy
- Laboratoire de Recherche sur la Biologie de la Moelle Osseuse, Institut Universitaire d'Hématologie EA 1814, Paris VII, France.
| | | | | | | | | | | |
Collapse
|
8
|
Ravikumar M, Dheenadhayalan V, Rajaram K, Lakshmi SS, Kumaran PP, Paramasivan CN, Balakrishnan K, Pitchappan RM. Associations of HLA-DRB1, DQB1 and DPB1 alleles with pulmonary tuberculosis in south India. TUBERCLE AND LUNG DISEASE : THE OFFICIAL JOURNAL OF THE INTERNATIONAL UNION AGAINST TUBERCULOSIS AND LUNG DISEASE 2000; 79:309-17. [PMID: 10707259 DOI: 10.1054/tuld.1999.0213] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
SETTING Tuberculosis is endemic in south India: sputum positive pulmonary tuberculosis is predisposed by HLA-DR2 in south India and few other populations of the world. OBJECTIVE To study HLA-DRB1, DQB1, DQA1 and DPB1 allelic polymorphism in pulmonary tuberculosis patients and endemic controls from south India. DESIGN One hundred and twenty-six, sputum positive pulmonary tuberculosis patients and 87, endemic controls, from Madurai were studied for MHC class II allelic polymorphism by PCR-SSOP method. XI IHWC primers and probes and non-radioactive probing methods were employed. RESULTS HLA DRB1*1501 and DQB1*0601 predisposed for pulmonary tuberculosis (DRB1*1501: odds ratio (OR) = 2.68, 95% confidence interval (CI) = 1.30-5.89, P value (P) = 0.013, aetiological fraction (EF) = 0.17; DQB1*0601: OR = 2.32, CI = 1.29-4.27, P = 0.008, EF = 0.26). Haplotype DRB1*1501-DQB1*0601 was higher in patients (1324 per 10,000, X2 = 27.07) than controls (F = 404/10,000, X2 = 8.84). In a subset of 63 caste matched samples, DPB1*04 was preventive (OR = 0.45, CI = 0.21-0.95, P = 0.036, PF = 0.26): the distributions of DRB1*1501-DQB1*0601-DPB1*04 phenotypes were different between patients and controls (P = 0.0092). These alleles were predominant in patients and controls of T5SU caste. CONCLUSION HLA-DRB1*1501 and DQB1*0601 predisposed to sputum positive pulmonary tuberculosis, and DPB1*04 was preventive and epistatic to this risk. Caste T5SU is an ideal model to study immunology of tuberculosis.
Collapse
Affiliation(s)
- M Ravikumar
- Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, India
| | | | | | | | | | | | | | | |
Collapse
|
9
|
McDermott AB, Zuckerman JN, Sabin CA, Marsh SG, Madrigal JA. Contribution of human leukocyte antigens to the antibody response to hepatitis B vaccination. TISSUE ANTIGENS 1997; 50:8-14. [PMID: 9243749 DOI: 10.1111/j.1399-0039.1997.tb02827.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We present here the analysis of 86 individuals who were true antibody nonresponders to a vaccine containing hepatitis B surface antigen. The HLA type of these individuals and of 248 controls were determined by serology for HLA class I and by molecular typing for the HLA class II loci DRB1 and DQB1. Subsequent analysis of the results revealed that HLA-DRB1*0701 and HLA-DQB1*02 were significantly associated with antibody non-response to the "S"-containing vaccine compared with the HLA control population. Further, we found that the antibody non-response was also significantly associated with the above antigens when found in linkage disequilibrium on the HLA haplotype DRB1*0701; DQB1*0202. The hepatitis B surface antigen vaccine antibody nonresponder group, comprising 86 individuals, were revaccinated with a novel vaccine Hep B-3, containing both preS1- and preS2-derived proteins in addition to hepatitis B surface antigen, to circumvent their previous nonresponsiveness. The hepatitis B surface antigen antibody results from this group of patients show that 30 of the 86 individuals remained antibody non-responders and that 24 individuals (80%) expressed the HLA-DQB1*02 and that 21 individuals (70%) expressed HLA-DRB1*0701. Our results indicate that antibody nonresponse to the Hep B-3 vaccine is significantly associated with an extended HLA haplotype B44; DRB1*0701; DQB1*0202. A possible indication of these results is that antibody nonresponse to Hep B-3 vaccine is linked with the HLA allele DQB1*0202. These findings may have an important impact on future vaccine design.
Collapse
Affiliation(s)
- A B McDermott
- Anthony Nolan Research Institute, Royal Free Hospital, London, United Kingdom
| | | | | | | | | |
Collapse
|
10
|
Abstract
Amelioration of rheumatoid arthritis (RA) occurs in about three quarters of pregnancies. Most women who improve experience initial relief in the first trimester. RA almost invariably recurs within 3 to 4 months of delivery. The effect of pregnancy upon the risk of first developing RA is similar in some respects but also differs from that observed in women with established disease. Analogous to women with established disease, the chance of a woman first developing RA is significantly reduced during pregnancy but increased in the first year post partum; thereafter risk is decreased. There is no indication of any adverse effects of RA on pregnancy outcome. Although limited, some medications can be used during pregnancy and during lactation without jeopardizing the well-being of the fetus.
Collapse
Affiliation(s)
- J L Nelson
- Program in Immunogenetics, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | |
Collapse
|
11
|
Odunsi KO, Ganesan TS. The roles of the human major histocompatibility complex and human papillomavirus infection in cervical intraepithelial neoplasia and cervical cancer. Clin Oncol (R Coll Radiol) 1997; 9:4-13. [PMID: 9039807 DOI: 10.1016/s0936-6555(97)80051-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- K O Odunsi
- Yale University School of Medicine, New Haven, Connecticut, USA
| | | |
Collapse
|
12
|
Odunsi K, Terry G, Ho L, Bell J, Cuzick J, Ganesan TS. Association Between HLA DQBl * 03 and Cervical Intra-epithelial Neoplasia. Mol Med 1995. [DOI: 10.1007/bf03401564] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
|
13
|
Abstract
The genetic influences on the course of mycobacterial infections during epidemics and in endemic areas have always been suspected, but the precise nature of such genetic control and of the inherited mechanisms of susceptibility have been unknown. We have used methods of population genetics in the mouse to discover a single dominant autosomal gene (Bcg), which controls the susceptibility to various species of mycobacteria as well as to other intracellular parasites. The phenotypic expression of the Bcg gene has been defined as nonspecific macrophage activation for bactericidal function, resulting in the destruction of ingested intracellular parasites early following infection. Using recombinant inbred strains of mice, we have mapped this gene to the centromeric part of chromosome 1 and we have created a high resolution linkage map and, subsequently, a physical map in the close vicinity of this locus. A 400 kb bacteriophage and cosmid contig assembled within the genomic interval overlapping Bcg contained six novel transcription units. RNA expression studies showed that one of these genes (designated Nramp for "natural resistance associated macrophage protein"), was expressed exclusively in macrophages. Nramp encodes an integral membrane protein that has structural homology with known prokaryotic and eukaryotic transport systems, suggesting a macrophage-specific membrane transport function. Susceptibility to infection (Bcgs) in 27 Bcgs and Bcgr strains tested is associated with a Gly-105 to Asp-105 substitution within predicted transmembrane domain 2 of Nramp, making this gene a strong candidate for Bcg. The chromosomal segment in the vicinity of the Bcg gene has been conserved in the human genome (chromosome 2q). Linkage analysis between the phenotype of disease during a tuberculosis outbreak in an extended multisib Canadian Indian family and allelic variants of chromosome 2 has revealed a significant LOD score. This finding, together with the emerging information on almost total sequence homology between the murine and human Nramp genes suggests that this gene may be responsible for the phenotype of resistance or susceptibility to tuberculosis.
Collapse
Affiliation(s)
- E Skamene
- McGill Centre for the Study of Host Resistance, Montreal General Hospital, Quebec, Canada
| |
Collapse
|
14
|
Mutis T, Cornelisse YE, Datema G, van den Elsen PJ, Ottenhoff TH, de Vries RR. Definition of a human suppressor T-cell epitope. Proc Natl Acad Sci U S A 1994; 91:9456-60. [PMID: 7524076 PMCID: PMC44831 DOI: 10.1073/pnas.91.20.9456] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The quality of the response produced by regulatory or helper T (Th) cells presently receives much attention because of its possible implications for vaccine development and immunomodulation. Apart from cytokines and so-called costimulatory signals, antigens and the presenting major histocompatibility complex (MHC) molecules may play a role in determining the type of T-cell response generated toward antigens. To examine the role of antigen and/or HLA in control of T-cell subset activation, we have studied a special case, namely CD4+ suppressor T (Ts) cells in leprosy. Mycobacterium leprae-induced Ts cell clones have been previously isolated from peripheral blood and skin lesions of lepromatous leprosy patients and were shown to specifically down-regulate mycobacterium-specific Th cell responses. Despite considerable effort, the antigens recognized by these Ts cells have thus far not been identified. Here we report that all HLA-DR2-restricted CD4+ Ts cell clones derived from a lepromatous leprosy patient recognize an epitope that maps between the amino acid residues 439 and 448 of the mycobacterial hsp65. The peptide was presented to these Ts cells by HLA-DRB1*1503, a recently discovered HLA-DR2 variant. Non-suppressor T-cell clones derived from the same patient recognized antigens other than the hsp65 and were also stimulated by other HLA-DR2 variants. In independent cloning experiments peptide 435-449 and recombinant hsp65 induced exclusively Ts cells in this lepromatous leprosy patient. The Ts clones recognizing this particular epitope were derived from at least seven different progenitors, as they expressed different T-cell receptor alpha and beta chains. Thus, our data indicate that a specific peptide-HLA class II combination may exclusively activate Ts cells.
Collapse
Affiliation(s)
- T Mutis
- Department of Immunohematology, University Hospital Leiden, The Netherlands
| | | | | | | | | | | |
Collapse
|
15
|
Garin L, Rigal D, el Marsafy S, Bernaud J, Philippe N, Souillet G. A high percentage of HLA-DQ+ and HLA-DR+ mononuclear cells is associated with a low incidence of acute graft-versus-host disease after allogeneic bone marrow transplantation (BMT) in children. Clin Exp Immunol 1994; 96:344-9. [PMID: 8187344 PMCID: PMC1534878 DOI: 10.1111/j.1365-2249.1994.tb06565.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In order to discover some biological markers of acute graft-versus-host disease (aGVHD), we have studied the percentage of peripheral monocytes and T lymphocytes bearing HLA-DR and HLA-DQ class II molecules. This study included 25 allogeneic BMT in children, either with (n = 10) or without (n = 15) aGVHD. Within 2 months after transplantation, a higher percentage of DQ+ and DR+ monocytes and of DQ+ T lymphocytes was observed in patients without aGVHD compared with patients with aGVHD. The most discriminating marker was the strong increase in the percentage of DQ+ monocytes in patients without aGVHD (P = 0.001). In a sequential study, we observed a low percentage of DQ+ and DR+ peripheral blood mononuclear cells (PBMC) as long as the clinical manifestations of aGVHD continued. We speculate if the modulation of DQ and DR molecules on PBMC after BMT is a consequence of the action of some lymphokines, and if it plays a role in the regulation of the acute GVH reaction. We conclude that MHC class II molecules on peripheral mononuclear cells may be reliable biological markers for the diagnosis of aGVHD.
Collapse
Affiliation(s)
- L Garin
- Laboratoire d'Immunologie, Centre Régional de Transfusion Sanguine de Lyon, France
| | | | | | | | | | | |
Collapse
|
16
|
Serra HM, Crimi C, Sette A, Celis E. Fine restriction analysis and inhibition of antigen recognition in HLA-DQ-restricted T cells by major histocompatibility complex blockers and T cell receptor antagonists. Eur J Immunol 1993; 23:2967-71. [PMID: 7901026 DOI: 10.1002/eji.1830231136] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The role of polymorphic residues of the beta chain of human histocompatibility leukocyte antigen-DQw5/w6 in antigen presentation to a hepatitis B surface antigen-specific T cell clone was studied. The results obtained demonstrate that the residue situated at position 57 of the beta chain (a valine) is critical for presentation of antigen by antigen-presenting cells to the DQ-restricted T cell clone. Experiments were also done to study the feasibility of peptide blocking of antigen recognition by DQ-restricted T cells. The results indicate that peptides known to associate with DQ molecules are capable of blocking the presentation of antigen to the DQ-restricted T cell clone, presumably by competing with antigen for binding to major histocompatibility complex (MHC) molecules. Moreover, truncations of the stimulatory antigenic peptide resulted in the production of T cell receptor antagonists, which inhibited the response of the T cells to antigen at 10-100-fold lower concentrations than conventional MHC blockers. The role of DQ-restricted T cell responses and peptide blocking approaches in autoimmunity are discussed.
Collapse
|
17
|
Riley EM, Morris-Jones S, Taylor-Robinson AW, Holder AA. Lymphoproliferative responses to a merozoite surface antigen of Plasmodium falciparum: preliminary evidence for seasonal activation of CD8+/HLA-DQ-restricted suppressor cells. Clin Exp Immunol 1993; 94:64-7. [PMID: 8403519 PMCID: PMC1534374 DOI: 10.1111/j.1365-2249.1993.tb05978.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
We have investigated the phenotype of human lymphocytes responding to a defined Plasmodium falciparum malaria antigen in vitro. Cells were obtained from the peripheral blood of malaria-immune donors from an endemic area of West Africa and were tested for proliferation in response to cloned fragments of a merozoite surface protein (PfMSP1). Depletion and inhibition studies indicated that the majority of proliferating cells were CD4+ and restricted by HLA-DR or -DQ. A proportion of responding cells appeared to be CD8+, but their response was dependent on help from CD4+ cells. In two donors there was evidence that low responses could be enhanced by removal of CD8+ cells and/or blocking of antigen presentation by anti-HLA-DQ antibodies. This phenomenon was observed in cells collected during the wet (malaria transmission) season but not in cells collected from the same individual during the dry season.
Collapse
Affiliation(s)
- E M Riley
- Institute of Cell, Animal and Population Biology, University of Edinburgh, UK
| | | | | | | |
Collapse
|
18
|
Abstract
The host immune response to Mycobacterium leprae is critical for control of the infection but also responsible for the immunopathological damage to skin and nerves. The complex and varied immune responses to the organism are the basis for the clinical spectrum of disease ranging from tuberculoid to lepromatous leprosy. The cellular interactions underlying this spectrum are discussed and the antigenic components of the bacillus briefly reviewed. M. leprae has evolved a variety of mechanisms to avoid macrophage bactericidal mechanisms. These result in the persistence of bacilli and the release of cytokines leading to chronic granulomatous inflammation. The immune response to M. leprae is dynamic and spontaneous variations in cellular reactivity occur with time leading to type I and II leprosy reactions. The factors which preset the host immune response to a tuberculoid or lepromatous pattern and which precipitate reactional episodes remain to be elucidated.
Collapse
Affiliation(s)
- W J Britton
- Department of Medicine, University of Sydney, Australia
| |
Collapse
|
19
|
Pope RM, Lovis RM, Gupta RS. Activation of synovial fluid T lymphocytes by 60-kd heat-shock proteins in patients with inflammatory synovitis. ARTHRITIS AND RHEUMATISM 1992; 35:43-8. [PMID: 1731814 DOI: 10.1002/art.1780350107] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE Synovial fluid lymphocytes from patients with rheumatoid arthritis and with other forms of inflammatory synovitis demonstrate enhanced proliferative responses to Mycobacterium tuberculosis antigens, in particular, the 65-kd heat-shock protein. There is a high degree of homology between the human and the mycobacterial 60-kd family of heat-shock proteins. These studies were performed to determine if the enhanced response to the mycobacterial 65-kd heat-shock protein was due to cross-reactivity of an immune response generated against the human homolog. METHODS These studies were performed by in vitro culture of isolated synovial fluid mononuclear cells with crude and purified antigens. RESULTS The synovial fluid lymphocytes of a majority of patients with rheumatoid arthritis recognized the mycobacterial 65-kd heat-shock protein, as evidenced by T cell proliferation. In contrast, only 18% of all samples tested responded to a highly purified recombinant human 60-kd heat-shock protein. With only one exception, proliferative responses to the mycobacterial antigen were stronger than those to the human homolog. The proliferative responses generated against mycobacterial 65-kd heat-shock proteins from different sources were highly correlated. CONCLUSION The findings suggest that the enhanced proliferative response to the mycobacterial 65-kd heat-shock protein noted in most patients with rheumatoid arthritis and other forms of inflammatory synovitis is not due to cross-reactivity of an immune response directed against the human heat-shock protein.
Collapse
Affiliation(s)
- R M Pope
- Department of Medicine, Northwestern University, Chicago, IL 60611
| | | | | |
Collapse
|
20
|
Fujisawa K, Kamikawaji N, Yasunami M, Kimura A, Nishimura Y, Sasazuki T. High precursor frequency of human T cells reactive to HLA-DQ molecules expressed on mouse L cell transfectants. Eur J Immunol 1991; 21:2341-7. [PMID: 1717282 DOI: 10.1002/eji.1830211008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In humans, the HLA-DR molecule is a major stimulatory molecule of allogeneic mixed lymphocyte reactions (MLR) and a major restriction molecule for the presentation of soluble antigens to the T cell. Little is known of the biological function of HLA-DQ. To examine the size of the repertoire of precursor T cells recognizing the autologous or allogeneic HLA-DQ molecule, the frequency of T cells reactive to HLA-DQ was estimated in comparison with T cells reactive to HLA-DR. We made use of a limiting dilution analysis and mouse L cells transfectants expressing the HLA-DR or -DQ molecule, as stimulators. Human T cells recovered from a primary MLR stimulated with allogeneic peripheral blood lymphocytes (PBL) proliferated in response to L cell transfectants expressing HLA class II genes shared by the stimulator cells in the primary MLR. This observation suggested that the HLA class II molecules on L cell transfectants shared to some extent epitopes for alloreactive T cells with those expressed on human PBL. The precursor frequencies of CD4+ T cells reactive to allogeneic or autologous DQ molecules were as high as those of T cells reactive to allogeneic DR molecules and were estimated to be 1/800-1/1800. The frequency of the T cells reactive to autologous DR molecules was low (1/7200-1/16,000). The biological significance of the high frequency of HLA-DQ-reactive precursor T cells is discussed.
Collapse
Affiliation(s)
- K Fujisawa
- Department of Genetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | |
Collapse
|
21
|
Altmann DM, Sansom D, Marsh SG. What is the basis for HLA-DQ associations with autoimmune disease? IMMUNOLOGY TODAY 1991; 12:267-70. [PMID: 1910448 DOI: 10.1016/0167-5699(91)90124-c] [Citation(s) in RCA: 100] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The finding that diseases such as type I diabetes, coeliac disease and multiple sclerosis are HLA-DQ associated is not easily explained by a simple hypothesis of DQ-restricted, autoreactive T cells, considering the generally marginal role of DQ in restricting responses. Consequently, there have been various attempts to find a differential role for DQ, from presentation of special antigens to preferential stimulation of suppressor cells. Here, Daniel Altmann and colleagues critically assess these proposals and put forward the alternative hypothesis that the effect of DQ on disease susceptibility may result from a special role in shaping the T-cell receptor repertoire.
Collapse
Affiliation(s)
- D M Altmann
- Transplantation Biology Section, Clinical Research Centre, Harrow, UK
| | | | | |
Collapse
|
22
|
Nishimura Y, Kamikawaji N, Fujisawa K, Yoshizumi H, Yasunami M, Kimura A, Sasazuki T. Genetic control of immune response and disease susceptibility by the HLA-DQ gene. RESEARCH IN IMMUNOLOGY 1991; 142:459-66. [PMID: 1684444 DOI: 10.1016/0923-2494(91)90048-n] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The particular alleles of the HLA-DQ locus may control the low immune response to natural antigens by a dominant genetic trait through the immune suppression mediated by CD8+ suppressor T cells. The suppressor T cells may be activated by DQ-restricted and antigen-specific CD4+ suppressor/inducer T cells, because (1) a statistically significant association and linkage between low immune responsiveness to the natural antigens and the HLA-DQ gene were observed; (2) antigen-specific CD4+ T cells restricted by the DQ molecules encoded for by the HLA-DQ allele associated with low responsiveness were evidenced in many low responders; and (3) anti-HLA-DQ mAb restored the immune response to natural antigens, in some low responders. This HLA-DQ-controlled polymorphism of immune response to the natural antigens may account for the association between HLA-DQ alleles and organ-specific autoimmune diseases.
Collapse
Affiliation(s)
- Y Nishimura
- Department of Genetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | | | |
Collapse
|