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Palmer WH, Norman PJ. The impact of HLA polymorphism on herpesvirus infection and disease. Immunogenetics 2023; 75:231-247. [PMID: 36595060 PMCID: PMC10205880 DOI: 10.1007/s00251-022-01288-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/24/2022] [Indexed: 01/04/2023]
Abstract
Human Leukocyte Antigens (HLA) are cell surface molecules, central in coordinating innate and adaptive immune responses, that are targets of strong diversifying natural selection by pathogens. Of these pathogens, human herpesviruses have a uniquely ancient relationship with our species, where coevolution likely has reciprocating impact on HLA and viral genomic diversity. Consistent with this notion, genetic variation at multiple HLA loci is strongly associated with modulating immunity to herpesvirus infection. Here, we synthesize published genetic associations of HLA with herpesvirus infection and disease, both from case/control and genome-wide association studies. We analyze genetic associations across the eight human herpesviruses and identify HLA alleles that are associated with diverse herpesvirus-related phenotypes. We find that whereas most HLA genetic associations are virus- or disease-specific, HLA-A*01 and HLA-A*02 allotypes may be more generally associated with immune susceptibility and control, respectively, across multiple herpesviruses. Connecting genetic association data with functional corroboration, we discuss mechanisms by which diverse HLA and cognate receptor allotypes direct variable immune responses during herpesvirus infection and pathogenesis. Together, this review examines the complexity of HLA-herpesvirus interactions driven by differential T cell and Natural Killer cell immune responses.
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Affiliation(s)
- William H. Palmer
- Department of Biomedical Informatics, University of Colorado, Aurora, CO USA
- Department of Immunology & Microbiology, University of Colorado, Aurora, CO USA
| | - Paul J. Norman
- Department of Biomedical Informatics, University of Colorado, Aurora, CO USA
- Department of Immunology & Microbiology, University of Colorado, Aurora, CO USA
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Blumenthal MJ, Cornejo Castro EM, Whitby D, Katz AA, Schäfer G. Evidence for altered host genetic factors in KSHV infection and KSHV-related disease development. Rev Med Virol 2021; 31:e2160. [PMID: 33043529 PMCID: PMC8047912 DOI: 10.1002/rmv.2160] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 01/09/2023]
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiological agent of Kaposi's sarcoma (KS), the most common AIDS-related malignancy. It also causes other rare, but certainly underreported, KSHV-associated pathologies, namely primary effusion lymphoma, multicentric Castleman disease and KSHV inflammatory cytokine syndrome. Epidemiology and pathogenicity studies point to the potential for host genetic predisposition to KSHV infection and/or the subsequent development of KSHV-associated pathologies partly explaining the peculiar geographic and population-specific incidence of KSHV and associated pathologies and discrepancies in KSHV exposure and infection and KSHV infection and disease development. This review consolidates the current knowledge of host genetic factors involved in the KSHV-driven pathogenesis. Studies reviewed here indicate a plausible connection between KSHV susceptibility and host genetic factors that affect either viral access to host cells via entry mechanisms or host innate immunity to viral infection. Subsequent to infection, KSHV-associated pathogenesis, reviewed here primarily in the context of KS, is likely influenced by an orchestrated concert of innate immune system interactions, downstream inflammatory pathways and oncogenic mechanisms. The association studies reviewed here point to interesting candidate genes that may prove important in achieving a more nuanced understanding of the pathogenesis and therapeutic targeting of KSHV and associated diseases. Recent studies on host genetic factors suggest numerous candidate genes strongly associated with KSHV infection or subsequent disease development, particularly innate immune system mediators. Taken together, these contribute toward our understanding of the geographic prevalence and population susceptibility to KSHV and KSHV-associated diseases.
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Affiliation(s)
- Melissa J. Blumenthal
- International Centre for Genetic Engineering and BiotechnologyCape TownSouth Africa
- Division of Medical Biochemistry and Structural Biology, Department of Integrative Biomedical SciencesUniversity of Cape TownCape TownSouth Africa
- Institute of Infectious Disease and Molecular MedicineUniversity of Cape TownCape TownSouth Africa
| | - Elena Maria Cornejo Castro
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical ResearchFrederick National Laboratory for Cancer ResearchFrederickMarylandUSA
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical ResearchFrederick National Laboratory for Cancer ResearchFrederickMarylandUSA
| | - Arieh A. Katz
- Division of Medical Biochemistry and Structural Biology, Department of Integrative Biomedical SciencesUniversity of Cape TownCape TownSouth Africa
- Institute of Infectious Disease and Molecular MedicineUniversity of Cape TownCape TownSouth Africa
| | - Georgia Schäfer
- International Centre for Genetic Engineering and BiotechnologyCape TownSouth Africa
- Division of Medical Biochemistry and Structural Biology, Department of Integrative Biomedical SciencesUniversity of Cape TownCape TownSouth Africa
- Institute of Infectious Disease and Molecular MedicineUniversity of Cape TownCape TownSouth Africa
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3
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Zhang P, Wang J, Zhang X, Wang X, Jiang L, Gu X. Identification of AIDS-Associated Kaposi Sarcoma: A Functional Genomics Approach. Front Genet 2020; 10:1376. [PMID: 32038721 PMCID: PMC6992650 DOI: 10.3389/fgene.2019.01376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/17/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Kaposi sarcoma-associated herpes virus (KSHV) is one of the most common causal agents of Kaposi Sarcoma (KS) in individuals with HIV-infections. The virus has gained attention over the past few decades due to its remarkable pathogenic mechanisms. A group of genes, ORF71, ORF72, and ORF73, are expressed as polycistronic mRNAs and the functions of ORF71 and ORF72 in KSHV are already reported in the literature. However, the function of ORF73 has remained a mystery. The aim of this study is to conduct comprehensive exploratory experiments to clarify the role of ORF73 in KSHV pathology and discover markers of AIDS-associated KSHV-induced KS by bioinformatic approaches. METHODS AND RESULTS We searched for homologues of ORF-73 and attempted to predict protein-protein interactions (PPI) based on GeneCards and UniProtKB, utilizing Position-Specific Iterated BLAST (PSI-BLAST). We applied Gene Ontology (GO) and KEGG pathway analyses to identify highly conserved regions between ORF-73 and p53to help us identify potential markers with predominant hits and interactions in the KEGG pathway associated with host apoptosis and cell arrest. The protein p53 is selected because it is an important tumor suppressor antigen. To identify the potential roles of the candidate markers at the molecular level, we used PSIPRED keeping the conserved domains as the major parameters to predict secondary structures. We based the FUGE interpretation consolidations of the sequence-structure comparisons on distance homology, where the score for the amino acids matching the insertion/deletion (indels) detected were based on structures compared to the FUGE database of structural profiles. We also calculated the compatibility scores of sequence alignments accordingly. Based on the PSI-BLAST homologues, we checked the disordered structures predicted using PSI-Pred and DISO-Pred for developing a hidden Markov model (HMM). We further applied these HMMs models based on the alignment of constructed 3D models between the known structure and the HMM of our sequence. Moreover, stable homology and structurally conserved domains confirmed that ORF-73 maybe an important prognostic marker for AIDS-associated KS. CONCLUSION Collectively, similar variants of ORF-73 markers involved in the immune response may interact with targeted host proteins as predicted by our computational analysis. This work also suggests the existence of potential conformational changes that need to be further explored to help elucidate the role of immune signaling during KS towards the development of therapeutic applications.
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Affiliation(s)
- Peng Zhang
- School of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Department of Public Health, Shanghai General Practice Medical Education and Research Center, Shanghai, China
| | - Jiafeng Wang
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiao Zhang
- Department of Implant Dentistry, Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaolan Wang
- College of Nursing and Health Management, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Liying Jiang
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Xuefeng Gu
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
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Cornejo Castro EM, Morrison BJ, Marshall VA, Labo N, Miley WJ, Clements N, Nelson G, Ndom P, Stolka K, Hemingway-Foday JJ, Abassora M, Gao X, Smith JS, Carrington M, Whitby D. Relationship between human leukocyte antigen alleles and risk of Kaposi's sarcoma in Cameroon. Genes Immun 2019; 20:684-689. [PMID: 31105266 PMCID: PMC6864225 DOI: 10.1038/s41435-019-0077-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 01/29/2023]
Abstract
Several studies published to date report associations between human leukocyte antigen (HLA) alleles and different types of Kaposi's Sarcoma (KS). However, there is little concordance between the HLA alleles identified and the populations studied. To test whether HLA alleles associate with KS in a Cameroonian case-control study, we performed high-resolution HLA typing in KSHV seropositive individuals. Among HIV-positive individuals, carriers of HLA-B*14:01 were at a significantly higher risk of AIDS-KS (p = 0.033). For HIV-negative patients, a gene-wise comparison of allele frequencies identified the HLA-B (p = 0.008) and -DQA1 (p = 0.002) loci as possible risk factors for endemic KS. Our study provides additional understanding of genetic determinants of KS and their implications in disease pathogenesis. Further validation of these findings is needed to define the functional relevance of these associations.
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Affiliation(s)
- Elena M Cornejo Castro
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - Brian J Morrison
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - Vickie A Marshall
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - Nazzarena Labo
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - Wendell J Miley
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - Nathan Clements
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - George Nelson
- CCR Collaborative Bioinformatics Resource (CCBR), Center for Cancer Research, NCI, Bethesda, MD, USA
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | | | - Kristen Stolka
- RTI International, Research Triangle Park, Triangle Park, NC, USA
| | | | | | - Xiaojiang Gao
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | | | - Mary Carrington
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc, Frederick, MD, USA.
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Fang Q, Liu Z, Zhang T. Human leukocyte antigen polymorphisms and Kaposi's sarcoma-associated herpesvirus infection outcomes: A call for deeper exploration. J Med Virol 2018; 91:541-548. [PMID: 30345532 DOI: 10.1002/jmv.25342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 10/08/2018] [Indexed: 12/13/2022]
Abstract
Host genetic background may influence the immunity to resist viral infection. As the most polymorphic loci in the entire human genome, the human leukocyte antigen (HLA) system plays an important role in innate and adaptive immune responses to many invading pathogens. Studies have shown that an association might exist between HLA polymorphisms and susceptibility to Kaposi's sarcoma-associated herpesvirus (KSHV) infection and associated diseases. However, discrepant conclusions were reached among different subjects with different detection methods. Therefore, it is now urgent to summarize current results and figure out the achievements and deficiencies of the existing research for the reference to future studies. A better understanding about the role of HLA polymorphisms in KSHV infection outcome would enable us to elucidate the pathways through which the virus evades the host defense system and improve strategies for the prevention and treatment of KSHV infection.
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Affiliation(s)
- Qiwen Fang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Zhenqiu Liu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Tiejun Zhang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China.,Collaborative Innovation Center of Social Risks Governance in Health, Fudan University, Shanghai, China
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Hussain SK, Makgoeng SB, Everly MJ, Goodman MT, Martínez-Maza O, Morton LM, Clarke CA, Lynch CF, Snyder J, Israni A, Kasiske BL, Engels EA. HLA and Risk of Diffuse Large B cell Lymphoma After Solid Organ Transplantation. Transplantation 2016; 100:2453-2460. [PMID: 26636741 PMCID: PMC4893345 DOI: 10.1097/tp.0000000000001025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Solid organ transplant recipients have heightened risk for diffuse large B cell lymphoma (DLBCL). The role of donor-recipient HLA mismatch and recipient HLA type on DLBCL risk are not well established. METHODS We examined 172 231 kidney, heart, pancreas, and lung recipients transplanted in the United States between 1987 and 2010, including 902 with DLBCL. Incidence rate ratios (IRRs) were calculated using Poisson regression for DLBCL risk in relation to HLA mismatch, types, and zygosity, adjusting for sex, age, race/ethnicity, year, organ, and transplant number. RESULTS Compared with recipients who had 2 HLA-DR mismatches, those with zero or 1 mismatch had reduced DLBCL risk, (zero: IRR, 0.76, 95% confidence interval [95% CI], 0.61-0.95; one: IRR, 0.83; 95% CI, 0.69-1.00). In stratified analyses, recipients matched at either HLA-A, -B, or -DR had a significantly reduced risk of late-onset (>2 years after transplantation), but not early-onset DLBCL, and there was a trend for decreasing risk with decreasing mismatch across all 3 loci (P = 0.0003). Several individual recipient HLA-A, -B, -C, -DR, and -DQ antigens were also associated with DLBCL risk, including DR13 (IRR, 0.74; 95% CI, 0.57-0.93) and B38 (IRR, 1.48; 95% CI, 1.10-1.93), confirming prior findings that these 2 antigens are associated with risk of infection-associated cancers. CONCLUSIONS In conclusion, variation in HLA is related to susceptibility to DLBCL, perhaps reflecting intensity of immunosuppression, control of Epstein-Barr virus infection among transplant recipients or chronic immune stimulation.
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Affiliation(s)
- Shehnaz K. Hussain
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA
| | - Solomon B. Makgoeng
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA
| | | | - Marc T. Goodman
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Otoniel Martínez-Maza
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA
- Departments of Obstetrics and Gynecology and Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Lindsay M. Morton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Christina A. Clarke
- Cancer Prevention Institute of California, Fremont, CA; Division of Epidemiology, Department of Health Research and Policy and Medicine, Stanford University School of Medicine, Stanford, CA
| | | | - Jon Snyder
- Scientific Registry of Transplant Recipients and Minneapolis Medical Research Foundation, Minneapolis, Minneapolis, MN
| | - Ajay Israni
- Scientific Registry of Transplant Recipients and Minneapolis Medical Research Foundation, Minneapolis, Minneapolis, MN
| | - Bertram L. Kasiske
- Scientific Registry of Transplant Recipients and Minneapolis Medical Research Foundation, Minneapolis, Minneapolis, MN
| | - Eric A. Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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Goedert JJ, Martin MP, Vitale F, Lauria C, Whitby D, Qi Y, Gao X, Carrington M. Risk of Classic Kaposi Sarcoma With Combinations of Killer Immunoglobulin-Like Receptor and Human Leukocyte Antigen Loci: A Population-Based Case-control Study. J Infect Dis 2016; 213:432-8. [PMID: 26268853 PMCID: PMC4719589 DOI: 10.1093/infdis/jiv413] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 08/03/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Kaposi sarcoma (KS) is a complication of KS-associated herpesvirus (KSHV) infection. Other oncogenic viral infections and malignancies are associated with certain HLA alleles and their natural killer (NK) cell immunoglobulin-like receptor (KIR) ligands. We tested whether HLA-KIR influences the risk of KSHV infection or KS. METHODS In population-based case-control studies, we compared HLA class I and KIR gene frequencies in 250 classic (non-AIDS) KS cases, 280 KSHV-seropositive controls, and 576 KSHV-seronegative controls composing discovery and validation cohorts. Logistic regression was used to calculate sex- and age-adjusted odds ratios (ORs) and 95% confidence intervals. RESULTS In both the discovery and validation cohorts, KS was associated with HLA-A*11:01 (adjusted OR for the combined cohorts, 0.4; P = .002) and HLA-C*07:01 (adjusted OR, 1.6; P = .002). Consistent associations across cohorts were also observed with activating KIR3DS1 plus HLA-B Bw4-80I and homozygosity for HLA-C group 1. With KIR3DS1 plus HLA-B Bw4-80I, the KSHV seroprevalence was 40% lower (adjusted OR for the combined cohorts, 0.6; P = .01), but the KS risk was 2-fold higher (adjusted OR, 2.1; P = .002). Similarly, the KSHV seroprevalence was 40% lower (adjusted OR, 0.6; P = .01) but the KS risk 80% higher with HLA-C group 1 homozygosity (adjusted OR, 1.8; P = .005). CONCLUSIONS KIR-mediated NK cell activation may decrease then risk of KSHV infection but enhance KSHV dissemination and progression to KS if infection occurs.
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Affiliation(s)
- James J Goedert
- Division of Cancer Epidemiology and Genetics, Division of Cancer Epidemiology and Genetics, National Cancer Institute
| | - Maureen P Martin
- Cancer and Inflammation Program, Laboratory of Experimental Immunology Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts
| | - Francesco Vitale
- Dipartimento di Igiene e Microbiologia Giuseppe D'Alessandro, Universitá degli Studi di Palermo
| | - Carmela Lauria
- Lega Italiana per la Lotta Contro i Tumori-Sez Ragusa, Italy
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Maryland
| | - Ying Qi
- Cancer and Inflammation Program, Laboratory of Experimental Immunology Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts
| | - Xiaojiang Gao
- Cancer and Inflammation Program, Laboratory of Experimental Immunology Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts
| | - Mary Carrington
- Cancer and Inflammation Program, Laboratory of Experimental Immunology Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts
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Futohi F, Saber A, Nemati E, Einollahi B, Rostami Z. Human Leukocyte Antigen Alleles and Cytomegalovirus Infection After Renal Transplantation. Nephrourol Mon 2015; 7:e31635. [PMID: 26866009 PMCID: PMC4744639 DOI: 10.5812/numonthly.31635] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 08/30/2015] [Accepted: 09/12/2015] [Indexed: 01/08/2023] Open
Abstract
Background: Several studies have been conducted on the relationship between a number of human leukocyte antigen (HLA) alleles and cytomegalovirus infection (CMV), in kidney transplant recipients, after transplantation. However, only a limited number of HLAs have been investigated, so far, and the results have been contradictory. Objectives: This study aimed to investigate the relationship between 59 HLA alleles and the CMV infection, in transplant recipients, after kidney transplantation. Patients and Methods: This retrospective cohort study was conducted on 200 patients, receiving a kidney transplant, in Baqiyatallah Hospital, in Tehran, during 2013. Throughout a one-year follow-up of kidney transplant recipients, in case of detecting the CMV antigen in patients’ blood, at any time, they were placed in the group of patients with CMV infection, whereas, if no CMV-specific antigen was developed, over a year, patients were placed in the group of patients without CMV infection, after transplantation. This study investigated the relationship between CMV infection in kidney transplant recipients and 59 HLA alleles, including 14 HLA-A, 28 HLA-B, and 17 HLA-DRB1 cases. Results: Of all participants, 104 patients (52%) were diagnosed with CMV infection. There was no significant difference between the two groups, with and without CMV infection, in terms of patient’s characteristics. The CMV infection, in patients receiving a transplanted organ from deceased donor, was significantly more prevalent than in those receiving kidney transplant from living donor (63% vs. 39%, respectively, P = 0.001). Recipients with HLA-B44 were more infected with CMV compared with patients without this allele (80% vs. 50%, respectively, P = 0.024); on the contrary, kidney recipients with HLA-DRB1-1 were less infected with CMV than patients without this allele (31% vs. 55%, respectively, P = 0.020). There was no significant relationship between CMV infection and other HLA alleles. Results of multivariate logistic regression analysis showed that deceased donor renal transplantation (OR = 3.018, 95%CI: 1.662 - 5.480, P < 0.001), presence of HLA-B44 (OR = 4.764, 95%CI: 1.259 - 18.032, P = 0.022) and lack of HLA-B8 (OR = 3.246, 95%CI: 1.030 - 10.230, P = 0.044) were the independent risk factors for developing CMV infection, after kidney transplantation. Conclusions: The findings of this study showed that deceased donor renal transplantation and the presence of HLA-B44 can make the kidney recipient susceptible to CMV infection after kidney transplantation; on the other hand, the presence of HLA-B8 can have a protective effect.
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Affiliation(s)
- Farzaneh Futohi
- Department of Nephrology, Rajaie Cardiovascular Medical and Research Center, Tehran, IR Iran
| | - Azadeh Saber
- Department of Nephrology, Kerman University of Medical Sciences, Kerman, IR Iran
| | - Eglim Nemati
- Department of Nephrology, Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Eglim Nemati, Department of Nephrology, Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Molla Sadra St, Tehran, IR Iran. Tel: +98-9126300248, E-mail:
| | - Behzad Einollahi
- Department of Nephrology, Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Zohre Rostami
- Department of Nephrology, Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
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9
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Courville EL, Sohani AR, Hasserjian RP, Zukerberg LR, Harris NL, Ferry JA. Diverse clinicopathologic features in human herpesvirus 8-associated lymphomas lead to diagnostic problems. Am J Clin Pathol 2014; 142:816-29. [PMID: 25389336 DOI: 10.1309/ajcpuli3w6wuggpy] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Human herpesvirus 8 (HHV8)-associated lymphomas are uncommon, mainly affect men infected with the human immunodeficiency virus (HIV), and usually have a poor prognosis. We sought to characterize the HHV8+ lymphomas seen at our institution since the mid-1990s. METHODS We identified 15 patients with HHV8-associated lymphomas and evaluated their clinical and pathologic features. RESULTS Diagnoses included primary effusion lymphoma (PEL) (n = 2), extracavitary PEL (n = 8), intravascular large B-cell lymphoma (n = 1), HHV8+ plasmablastic microlymphoma (n = 3), and germinotropic lymphoproliferative disorder (GLD) (n = 1). The case of GLD progressed to a high-grade HHV8+ Epstein-Barr virus-positive lymphoma, an evolution that has not been previously reported. Four patients were HIV-(three from an HHV8-endemic area). Potentially misleading pathologic features in our series of extracavitary PEL included classic Hodgkin lymphoma-like features, lymph node sinus involvement, and T-cell antigen expression. CONCLUSIONS HHV8-associated lymphomas can be clinically and pathologically heterogeneous, with features that may lead to misdiagnosis as other types of lymphoma.
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Affiliation(s)
- Elizabeth L. Courville
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
| | - Aliyah R. Sohani
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
| | - Robert P. Hasserjian
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
| | - Lawrence R. Zukerberg
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
| | - Nancy L. Harris
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
| | - Judith A. Ferry
- James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, the Department of Pathology, Harvard Medical School, Boston, MA
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10
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Aissani B, Boehme AK, Wiener HW, Shrestha S, Jacobson LP, Kaslow RA. SNP screening of central MHC-identified HLA-DMB as a candidate susceptibility gene for HIV-related Kaposi's sarcoma. Genes Immun 2014; 15:424-9. [PMID: 25008864 PMCID: PMC4174341 DOI: 10.1038/gene.2014.42] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 12/16/2022]
Abstract
The major histocompatibility complex (MHC) region on chromosome 6p21.3 is suspected to host susceptibility loci for HIV-related Kaposi's sarcoma (HIV-KS). A nested case-control study in the Multicenter AIDS Cohort Study was designed to conduct fine genetic association mapping across central MHC. Individuals co-infected with HIV-1 and human herpes virus-8 who later developed KS were defined as cases (n=354) and were matched 1:1 with co-infected KS-free controls. We report data for new independent MHC class II and III susceptibility loci. In particular, class II HLA-DMB emerged as a strong candidate, with the intronic variant rs6902982 A>G associated with a fourfold increase of risk (odds ratio (OR)=4.09; 95% confidence interval (CI)=1.90-8.80; P=0.0003). A striking multiplicative effect on the estimated risk was associated with further carriage of two non-synonymous variants, rs1800453 A>G (Asp697Gly) and rs4148880 A>G (Ile393Val), in the linked TAP1 gene (OR=10.5; 95% CI=2.54-43.6; P=0.0012). The class III susceptibility variant is moderately associated with HIV-KS and lies within a 120-kb-long haplotype (OR=1.52; 95% CI=1.01-2.28; P=0.047) formed by rs7029 A>G (GPANK1 3' untranslated region), rs1065356 G>A (LY6G6C), rs3749953 A>G (MSH5-SAPCD1 read through) and rs707926 G>A (VARS). Our data suggest that antigen processing by MHC class II molecules is a target pathway in the pathogenesis of HIV-KS.
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Affiliation(s)
- Brahim Aissani
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Amelia K. Boehme
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Howard W. Wiener
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sadeep Shrestha
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lisa P. Jacobson
- Department of Epidemiology, Johns Hopkins University, Baltimore, MD, USA
| | - Richard A. Kaslow
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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11
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del Puerto F, Kikuchi M, Nishizawa JE, Roca Y, Avila C, Gianella A, Lora J, Gutierrez Velarde FU, Hirayama K. 21-Hydroxylase gene mutant allele CYP21A2*15 strongly linked to the resistant HLA haplotype B*14:02-DRB1*01:02 in chronic Chagas disease. Hum Immunol 2013; 74:783-6. [PMID: 23376085 DOI: 10.1016/j.humimm.2013.01.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 12/29/2012] [Accepted: 01/24/2013] [Indexed: 10/27/2022]
Abstract
We previously reported protective haplotype HLA-B*14:02-DRB1*01:02 against chronic Chagas disease in Bolivia. The V281L mutant allele of the 21-Hydroxylase gene, CYP21A2*15, is reported to be located in the Class III region of the Human leukocyte antigen region and linked to the haplotype HLA-B*14:02-DRB1*01:02. The mutant allele might play a primary role in the pathogenesis of chronic Chagas disease in the associated HLA region. We analyzed the frequency of this allele in the same subjects for the previous one. The statistical analysis showed a significant association of the CYP21A2*15 with resistance to severe chronic Chagas disease (OR=0.207273; Pv=0.0041). However, there is no significant tendency of the mutant gene contribution to the resistance after the elimination of the HLA-B*14:02-DRB1*01:02 linked mutants (OR=0.38; Pv=0.1533). Although the frequency of the CYP21A2*15 was small, we found no primary contribution of this mutation to the protection against chronic Chagas disease.
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Affiliation(s)
- Florencia del Puerto
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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12
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Kaasinen E, Aavikko M, Vahteristo P, Patama T, Li Y, Saarinen S, Kilpivaara O, Pitkänen E, Knekt P, Laaksonen M, Artama M, Lehtonen R, Aaltonen LA, Pukkala E. Nationwide registry-based analysis of cancer clustering detects strong familial occurrence of Kaposi sarcoma. PLoS One 2013; 8:e55209. [PMID: 23365693 PMCID: PMC3554690 DOI: 10.1371/journal.pone.0055209] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 12/23/2012] [Indexed: 11/18/2022] Open
Abstract
Many cancer predisposition syndromes are rare or have incomplete penetrance, and traditional epidemiological tools are not well suited for their detection. Here we have used an approach that employs the entire population based data in the Finnish Cancer Registry (FCR) for analyzing familial aggregation of all types of cancer, in order to find evidence for previously unrecognized cancer susceptibility conditions. We performed a systematic clustering of 878,593 patients in FCR based on family name at birth, municipality of birth, and tumor type, diagnosed between years 1952 and 2011. We also estimated the familial occurrence of the tumor types using cluster score that reflects the proportion of patients belonging to the most significant clusters compared to all patients in Finland. The clustering effort identified 25,910 birth name-municipality based clusters representing 183 different tumor types characterized by topography and morphology. We produced information about familial occurrence of hundreds of tumor types, and many of the tumor types with high cluster score represented known cancer syndromes. Unexpectedly, Kaposi sarcoma (KS) also produced a very high score (cluster score 1.91, p-value <0.0001). We verified from population records that many of the KS patients forming the clusters were indeed close relatives, and identified one family with five affected individuals in two generations and several families with two first degree relatives. Our approach is unique in enabling systematic examination of a national epidemiological database to derive evidence of aberrant familial aggregation of all tumor types, both common and rare. It allowed effortless identification of families displaying features of both known as well as potentially novel cancer predisposition conditions, including striking familial aggregation of KS. Further work with high-throughput methods should elucidate the molecular basis of the potentially novel predisposition conditions found in this study.
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Affiliation(s)
- Eevi Kaasinen
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Mervi Aavikko
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Pia Vahteristo
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Toni Patama
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Yilong Li
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Silva Saarinen
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Outi Kilpivaara
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Esa Pitkänen
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Paul Knekt
- National Institute of Health and Welfare, Helsinki, Finland
| | | | - Miia Artama
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Rainer Lehtonen
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Lauri A. Aaltonen
- Genome-Scale Biology Research Program, and Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Eero Pukkala
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
- School of Health Sciences, University of Tampere, Tampere, Finland
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Sharma G, Kaur G, Mehra N. Genetic correlates influencing immunopathogenesis of HIV infection. Indian J Med Res 2012; 134:749-68. [PMID: 22310811 PMCID: PMC3284087 DOI: 10.4103/0971-5916.92623] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Variability to HIV infection, its progression as well as responsiveness to antiretroviral therapy (ART) is observed among individuals including viraemia controllers or exposed uninfected, rapid versus slow progressors and ART responders compared to non responders. This differential responsiveness/vulnerability to HIV-1 is governed by multiple host genetic factors that include HLA, cytokines, chemokines, their receptors and others. This review highlights the influence of these genetic factors on HIV/AIDS outcome; however, in India, the information in this area is very limited and most of these genetic studies have been conducted in Caucasian and South African populations. Considering, the population specific differences in the frequencies of protective or susceptibility favouring alleles and their influence on the disease outcome, it is of utmost importance to strengthen ongoing efforts towards defining largely unknown genetic propensity in Indian population, particularly by recruitment of large cohorts of well categorized exposed uninfected individuals, rapid, long term non progressors and elite viraemic controllers. Multi-parametric analysis of these potentially interactive immunogenetic variables in these cohorts may help to define potential targets for diagnostics and therapy in a population specific manner.
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Affiliation(s)
- Gaurav Sharma
- Department of Transplant Immunology & Immunogenetics, All India Institute of Medical Sciences, New Delhi, India
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del Puerto F, Nishizawa JE, Kikuchi M, Roca Y, Avilas C, Gianella A, Lora J, Velarde FUG, Miura S, Komiya N, Maemura K, Hirayama K. Protective human leucocyte antigen haplotype, HLA-DRB1*01-B*14, against chronic Chagas disease in Bolivia. PLoS Negl Trop Dis 2012; 6:e1587. [PMID: 22448298 PMCID: PMC3308929 DOI: 10.1371/journal.pntd.0001587] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 02/11/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Chagas disease, caused by the flagellate parasite Trypanosoma cruzi affects 8-10 million people in Latin America. The mechanisms that underlie the development of complications of chronic Chagas disease, characterized primarily by pathology of the heart and digestive system, are not currently understood. To identify possible host genetic factors that may influence the clinical course of Chagas disease, Human Leucocyte Antigen (HLA) regional gene polymorphism was analyzed in patients presenting with differing clinical symptoms. METHODOLOGY Two hundred and twenty nine chronic Chagas disease patients in Santa Cruz, Bolivia, were examined by serological tests, electrocardiogram (ECG), and Barium enema colon X-ray. 31.4% of the examinees showed ECG alterations, 15.7% megacolon and 58.1% showed neither of them. A further 62 seropositive megacolon patients who had undergone colonectomy due to acute abdomen were recruited. We analyzed their HLA genetic polymorphisms (HLA-A, HLA-B, MICA, MICB, DRB1 and TNF-alpha promoter region) mainly through Sequence based and LABType SSO typing test using LUMINEX Technology. PRINCIPAL FINDINGS The frequencies of HLA-DRB1*01 and HLA-B*14:02 were significantly lower in patients suffering from megacolon as well as in those with ECG alteration and/or megacolon compared with a group of patients with indeterminate symptoms. The DRB1*0102, B*1402 and MICA*011 alleles were in strong Linkage Disequilibrium (LD), and the HLA-DRB1*01-B*14-MICA*011 haplotype was associated with resistance against chronic Chagas disease. CONCLUSIONS This is the first report of HLA haplotype association with resistance to chronic Chagas disease.
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Affiliation(s)
- Florencia del Puerto
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Global COE Program, Nagasaki University, Nagasaki, Japan
| | | | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Global COE Program, Nagasaki University, Nagasaki, Japan
- Center for International Collaboration Research (CICORN), Nagasaki University, Nagasaki, Japan
| | - Yelin Roca
- Centro Nacional de Enfermedades Tropicales, Santa Cruz, Bolivia
| | - Cinthia Avilas
- Centro Nacional de Enfermedades Tropicales, Santa Cruz, Bolivia
| | | | - Javier Lora
- Centro Nacional de Enfermedades Tropicales, Santa Cruz, Bolivia
| | | | - Sachio Miura
- Department of Tropical Medicine and Parasitology, School of Medicine, Keio University, Tokyo, Japan
| | - Norihiro Komiya
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Koji Maemura
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Global COE Program, Nagasaki University, Nagasaki, Japan
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Taylor GS, Blackbourn DJ. Infectious agents in human cancers: lessons in immunity and immunomodulation from gammaherpesviruses EBV and KSHV. Cancer Lett 2011; 305:263-78. [PMID: 21470769 DOI: 10.1016/j.canlet.2010.08.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 07/23/2010] [Accepted: 08/22/2010] [Indexed: 01/13/2023]
Abstract
Members of the herpesvirus family have evolved the ability to persist in their hosts by establishing a reservoir of latently infected cells each carrying the viral genome with reduced levels of viral protein synthesis. In order to spread within and between hosts, in some cells, the quiescent virus will reactivate and enter lytic cycle replication to generate and release new infectious virus particles. To allow the efficient generation of progeny viruses, all herpesviruses have evolved a wide variety of immunomodulatory mechanisms to limit the exposure of cells undergoing lytic cycle replication to the immune system. Here we have focused on the human gammaherpesviruses Epstein-Barr virus (EBV) and Kaposi's sarcoma-associated herpesvirus (KSHV) that, uniquely among the eight human herpesviruses identified to date, have growth transforming potential. Most people infected with these viruses will not develop cancer, viral growth-transforming activity being kept under control by the host's antigen-specific immune responses. Nonetheless, EBV and KSHV are associated with several malignancies in which various viral proteins, either predominantly or exclusively latency-associated, are expressed; at least some of these proteins also have immunomodulatory activities. Of these malignancies, some are the result of a disrupted virus/immune balance through genetic, infectious or iatrogenic immune suppression. Others develop in people that are not overtly immune suppressed and likely modulate the immunological response. This latter aspect of immune modulation by EBV and KSHV forms the basis of this review.
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Affiliation(s)
- Graham S Taylor
- CR UK Cancer Centre, School of Cancer Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, UK
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16
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Reshef R, Luskin MR, Kamoun M, Vardhanabhuti S, Tomaszewski JE, Stadtmauer EA, Porter DL, Heitjan DF, Tsai DE. Association of HLA polymorphisms with post-transplant lymphoproliferative disorder in solid-organ transplant recipients. Am J Transplant 2011; 11:817-25. [PMID: 21401872 PMCID: PMC3072270 DOI: 10.1111/j.1600-6143.2011.03454.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The association between HLA polymorphisms and PTLD was investigated in a case-control study, comparing 110 predominantly adult solid-organ transplant recipients who developed PTLD to 5601 who did not. Donor and recipient HLA were analyzed. We detected a significant association between recipient HLA-A26 and the development of PTLD (OR 2.74; p = 0.0007). In Caucasian recipients, both recipient and donor HLA-A26 were independently associated with development of PTLD (recipient A26 OR 2.99; p = 0.0004, donor A26 OR 2.81; p = 0.002). Analysis of HLA-A and -B haplotypes revealed that recipient HLA-A26, B38 haplotype was strongly correlated with a higher incidence of EBV-positive PTLD (OR 3.99; p = 0.001). The common ancestral haplotype HLA-A1, B8, DR3, when carried by the donor, was protective against PTLD (OR 0.41; p = 0.05). Several other HLA specificities demonstrated associations with clinical and pathological characteristics as well as survival. These findings demonstrate the importance of HLA polymorphisms in modulating the risk for PTLD, and may be useful in risk stratification and development of monitoring and prophylaxis strategies.
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Affiliation(s)
- R Reshef
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - MR Luskin
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - M Kamoun
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - S Vardhanabhuti
- Department of Biostatistics & Epidemiology, University of Pennsylvania, Philadelphia, PA
| | - JE Tomaszewski
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - EA Stadtmauer
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - DL Porter
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - DF Heitjan
- Department of Biostatistics & Epidemiology, University of Pennsylvania, Philadelphia, PA
| | - DE Tsai
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
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Abstract
Kaposi's sarcoma (KS) is the most common cancer in HIV-infected untreated individuals. Kaposi's sarcoma-associated herpesvirus (KSHV; also known as human herpesvirus 8 (HHV8)) is the infectious cause of this neoplasm. In this Review we describe the epidemiology of KS and KSHV, and the insights into the remarkable mechanisms through which KSHV can induce KS that have been gained in the past 16 years. KSHV latent transcripts, such as latency-associated nuclear antigen (LANA), viral cyclin, viral FLIP and viral-encoded microRNAs, drive cell proliferation and prevent apoptosis, whereas KSHV lytic proteins, such as viral G protein-coupled receptor, K1 and virally encoded cytokines (viral interleukin-6 and viral chemokines) further contribute to the unique angioproliferative and inflammatory KS lesions through a mechanism called paracrine neoplasia.
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Affiliation(s)
- Enrique A Mesri
- Viral Oncology Program, Developmental Center for AIDS Research, and Department of Microbiology & Immunology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, 1,550 NW 10th Avenue, 109 Papanicolau Building, Miami, Florida 33136, USA.
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18
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The major histocompatibility complex conserved extended haplotype 8.1 in AIDS-related non-Hodgkin lymphoma. J Acquir Immune Defic Syndr 2010; 52:170-9. [PMID: 19654554 DOI: 10.1097/qai.0b013e3181b017d5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Two single nucleotide polymorphisms (SNPs) in adjacent genes, lymphotoxin alpha (LTA +252G, rs909253 A>G) and tumor necrosis factor (TNF -308A, rs1800629 G>A), form the G-A haplotype repeatedly associated with increased risk of non-Hodgkin lymphoma (NHL) in individuals uninfected with HIV-1. This association has been observed alone or in combination with human leukocyte antigens HLA-B*08 or HLA-DRB1*03 in the major histocompatibility complex (MHC). Which gene variant on this highly conserved extended haplotype (CEH 8.1) in whites most likely represents a true etiologic factor remains uncertain. OBJECTIVE We aimed to determine whether the reported association of the G-A haplotype of LTA-TNF with non-AIDS NHL also occurs with AIDS-related NHL. METHODS SNPs in LTA and TNF and in 6 other genes nearby were typed in 140 non-Hispanic European American pairs of AIDS-NHL cases and matched controls selected from HIV-infected men in the Multicenter AIDS Cohort Study. RESULTS The G-A haplotype and a 4-SNP haplotype in the neighboring gene cluster (rs537160 (A) rs1270942 (G), rs2072633 (A), and rs6467 (C)) were associated with AIDS-NHL (odds ratio = 2.7, 95% confidence interval: 1.5 to 4.8, P = 0.0009; and odds ratio = 3.2, 95% confidence interval: 1.6 to 6.6, P = 0.0008; respectively). These 2 haplotypes occur in strong linkage disequilibrium with each other on CEH 8.1. CONCLUSION The CEH 8.1-specific haplotype association of MHC class III variants with AIDS-NHL closely resembles that observed for non-AIDS NHL. Corroboration of an MHC determinant of AIDS and non-AIDS NHL alike would imply an important pathogenetic mechanism common to both.
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20
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Singh P, Kaur G, Sharma G, Mehra NK. Immunogenetic basis of HIV-1 infection, transmission and disease progression. Vaccine 2008; 26:2966-80. [PMID: 18321617 DOI: 10.1016/j.vaccine.2008.01.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Revised: 01/09/2008] [Accepted: 01/09/2008] [Indexed: 10/22/2022]
Abstract
Susceptibility to HIV-1 infection and rate of disease progression to AIDS are complex traits modulated by environmental and genetic factors. Studies on large AIDS cohorts and their meta-analyses have identified numerous AIDS restriction genes that regulate HIV cell entry (particularly chemokine co-receptors and their ligands), acquired and innate immunity (major histocompatibility complex (MHC), killer immunoglobulin-like receptors (KIRs), and cytokines) and others that influence outcome of HIV infection. However, vast inter-individual variability is often observed and some rare individuals like 'long-term non-progressors (LTNPs) or exposed uninfected' (EUs) appear to be protected due to natural resistance. A better understanding of genetic basis of such a 'natural resistance' to infection would bear important implications in designing therapeutic vaccine designs. The genetic variants that could limit AIDS vary in different populations. We have studied genetic variations in the MHC, cytokines and CCR2-CCR5 loci in the Asian-Indian HIV-infected population and compared with other global populations.
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Affiliation(s)
- Paras Singh
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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21
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Tóth EK, Kocsis J, Madaras B, Bíró A, Pocsai Z, Fust G, Blaskó B, Karádi I, Adány R, Laki J. The 8.1 ancestral MHC haplotype is strongly associated with colorectal cancer risk. Int J Cancer 2007; 121:1744-8. [PMID: 17594690 DOI: 10.1002/ijc.22922] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Many recent data indicate that some alleles encoded in the central major histocompatibility complex (MHC) region (Class III) of short arm of chromosome 6 may modify the risk of cancer development. Therefore we determined 4 single nucleotide polymorphisms (SNPs) of this region (TNF-alpha -308 G > A, RAGE -429 T > C, HSP70-2 -1267 A > G, LTA 252 A > G) in genomic DNA samples from 183 Hungarian patients with colorectal cancer and 141 age matched control subjects representing the Hungarian population of the same age and gender. No significant differences were found in either SNP tested. When, however, three- or four-locus haplotypes consisting of known constituents of the so-called 8.1 ancestral haplotype (8.1AH) were considered, marked differences were observed. Frequency of TNF-alpha -308A, RAGE -429C, HSP70-2 -1267G, LTA 252G (8.1AH) haplotype was significantly (p = 0.006) more frequent (19.1%) among patients than in the controls (7.7%). Age- and gender-adjusted ratio of the 8.1AH carriers vs. non-carriers to have colorectal cancer was 2.514 (1.130-5.594). This risk was higher in <or=67 years old subjects (4.073 (1.317-12.596)) and in females (3.771 (1.302-10.927). These findings-consistent with similar recent results with ovarian cancer-indicate that carriers of the 8.1AH, encoding for an altered immune response and known to be associated with alterations of several immune functions and autoimmune diseases have an increased risk for some cancer types. These findings may contribute to better understanding how the defense mechanisms against tumors could be enhanced/strengthened.
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Affiliation(s)
- Eva Katalin Tóth
- 3rd Department of Medicine, Semmelweis University, Budapest, Hungary
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Dorak MT, Shao W, Machulla HKG, Lobashevsky ES, Tang J, Park MH, Kaslow RA. Conserved extended haplotypes of the major histocompatibility complex: further characterization. Genes Immun 2006; 7:450-67. [PMID: 16791278 DOI: 10.1038/sj.gene.6364315] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Since the complete sequencing of a human major histocompatibility complex (MHC) haplotype, interest in non-human leucocyte antigen (HLA) genes encoded in the MHC has been growing. Non-HLA genes, which outnumber the HLA genes, may contribute to or account for HLA and disease associations. Most information on non-HLA genes has been obtained in separate studies of individual loci. To comprehensively address polymorphisms of relevant non-HLA genes in 'conserved extended haplotypes' (CEH), we investigated 101 International Histocompatibility Workshop reference cell lines and nine additional anonymous samples representing all 37 unambiguously characterized CEHs at MICA, NFKBIL1, LTA, NCR3, AIF1, HSPA1A, HSPA1B, BF, NOTCH4 and a single nucleotide polymorphism (SNP) at HLA-DQA1 as well as MICA, NOTCH4, HSPA1B and all five tumour necrosis factor short tandem repeat (STR) polymorphisms. This work (1) provides an extensive catalogue of MHC polymorphisms in all CEHs, (2) unravels interrelationships between HLA and non-HLA haplotypical lineages, (3) resolves reported typing ambiguities and (4) describes haplospecific markers for a number of CEHs. Analysis also identified a DQA1 SNP and segments containing MHC class III polymorphisms that corresponded with class II (DRB3 and DRB4) lineages. These results portray the MHC where lineages containing non-HLA and HLA variants in linkage disequilibrium may operate in concert and can guide more thorough design and interpretation of HLA-disease relationships.
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Affiliation(s)
- M T Dorak
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA.
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Guttman-Yassky E, Dubnov J, Kra-Oz Z, Friedman-Birnbaum R, Silbermann M, Barchana M, Bergman R, Sarid R. Classic Kaposi sarcoma. Which KSHV-seropositive individuals are at risk? Cancer 2006; 106:413-9. [PMID: 16353205 DOI: 10.1002/cncr.21614] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Classic Kaposi sarcoma (CKS) is a relatively rare vascular disease primarily affecting human immunodeficiency virus (HIV)-uninfected elderly men. The infection with Kaposi sarcoma-associated herpesvirus (KSHV) is necessary for the establishment of Kaposi sarcoma (KS), although it is not sufficient. Thus, only a small fraction of KSHV-infected individuals develops KS. The cofactors that influence risk of KS among HIV-uninfected individuals are yet to be determined. The objective of the current study was to assess potential risk factors for CKS in the KSHV-infected Jewish population in Israel. METHODS A case-control study involved 35 CKS cases and 48 matched KSHV-infected controls. Lifestyle and medical history data from case patients and controls were compared by logistic regression analysis. RESULTS In a multivariate analysis, the authors identified an age-related small increased risk for CKS in subjects originating from Asia and Africa. The risk for CKS increased, although not significantly statistically, in subjects who reported alcohol consumption, diabetes mellitus, herpes simplex, and asthma. No relation was found with cigarette smoking, family size, number of lifetime sexual partners, or sexually transmitted disease. CONCLUSIONS A borderline increase in CKS risk among elderly subjects originating from Africa or Asia was identified. These results need to be further evaluated by larger studies. The authors believe that genetic and immunologic parameters may alter risk for CKS and, therefore, should also be investigated.
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