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Chow KL, Keating PE, Solanki K, Sapsford M, Lindsay K, O'Donnell JL. Anti-HMGCR myopathy: Diversity of clinical presentations in a national cohort in New Zealand. Semin Arthritis Rheum 2024; 68:152522. [PMID: 39079206 DOI: 10.1016/j.semarthrit.2024.152522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 05/21/2024] [Accepted: 07/08/2024] [Indexed: 09/10/2024]
Abstract
AIMS We describe the varied clinical presentations, barriers in diagnosis and outcomes of anti-HMGCR myopathy in a large national cohort. METHODS Adults found positive for serum anti-HMGCR autoantibodies via line blot or enzyme-immunoassay followed by immunoprecipitation were included in the study. RESULTS Of 75 patients identified, the records of 72 (96 %) described weakness as the presenting symptom. The records of 65 gave a reliable description of proximal weakness. In 22/65 (33.8 %) the weakness was described as predominantly or solely lower limb weakness. Forty-five of 75 (60 %) presented with a subacute onset (duration of symptoms >4 weeks -≤6 months), whilst 22/75 (29.3 %) presented with a more indolent chronic onset (duration of symptoms >6 months). Eighteen of 75 (24 %) suffered falls and 2/75 (2.7 %) had "general decline". In three patients no weakness was described: two presented with myalgia and one with a skin rash characterized as Jessner lymphocytic skin rash. Median creatine kinase at presentation was 7337 U/L (range 1050-25,500). Muscle biopsy was performed in 38 (50.7 %). Associated malignancy was infrequent. Four patients recovered without immunosuppression. Five-year and 10-year survival was 92.7 % (95 % CI 80.6-97.4 %), and 82.5 % (95 % CI 61.2-92.8 %) respectively. CONCLUSION Recurrent falls, a long prodrome and dominant lower limb proximal weakness were common in this anti-HMGCR myopathy cohort. These features overlap with frailty syndrome and sporadic inclusion body myositis emphasizing the importance of considering anti-HMGCR myopathy in that clinical context. A minority of patients recover after statin withdrawal alone.
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Affiliation(s)
- Ke Li Chow
- Department of Immunology, Canterbury Health Laboratories, Christchurch, New Zealand; Department of Immunology, NSW Health Pathology, Newcastle, NSW, Australia.
| | | | - Kamal Solanki
- Department of Rheumatology, Waikato Hospital, Hamilton, New Zealand
| | - Mark Sapsford
- Department of Rheumatology, Middlemore Hospital, Auckland, New Zealand
| | - Karen Lindsay
- Department of Immunology, Auckland City Hospital, Auckland, New Zealand; Department of Rheumatology, Auckland City Hospital, Auckland, New Zealand
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Khoo T, Chinoy H. Anti-HMGCR immune-mediated necrotising myopathy: Addressing the remaining issues. Autoimmun Rev 2023; 22:103468. [PMID: 37884200 DOI: 10.1016/j.autrev.2023.103468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
The discovery of autoantibodies directed against the 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) enzyme has defined a sub-set of immune-mediated necrotising myopathy (IMNM) which is strongly associated with exposure to statin medications. Although understanding of anti-HMGCR IMNM has grown considerably with the reporting of multiple cohorts in North America, Europe, Asia and Oceania, there remain many unanswered questions. The true incidence of anti-HMGCR IMNM is not known and heterogeneity of phenotype and treatment response within this autoantibody sub-group is being increasingly recognised. Statin-naïve adults and juvenile patients with anti-HMGCR potentially share characteristics distinct from statin-exposed patients, alluding to unique pathogenesis. Conflicting data exists on whether malignancies are associated with anti-HMGCR and further clarification is required to determine the degree of cancer screening required. Treatment approaches to anti-HMGCR IMNM are heterogeneous but generally highlight the efficacy of intravenous immunoglobulin. Even with multimodal immunosuppression, patients with anti-HMGCR remain prone to relapse, with younger patients generally manifesting more refractory disease. In this Review, we aim to summarise the current literature on anti-HMGCR and discuss the remaining issues.
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Affiliation(s)
- Thomas Khoo
- Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; School of Medicine, Faculty of Health and Medical Sciences, The University of Adelaide, South Australia, Australia; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, United Kingdom.
| | - Hector Chinoy
- Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, United Kingdom
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3
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Lo CW, Borjigin L, Saito S, Fukunaga K, Saitou E, Okazaki K, Mizutani T, Wada S, Takeshima SN, Aida Y. BoLA-DRB3 Polymorphism is Associated with Differential Susceptibility to Bovine Leukemia Virus-Induced Lymphoma and Proviral Load. Viruses 2020; 12:v12030352. [PMID: 32235771 PMCID: PMC7150773 DOI: 10.3390/v12030352] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/11/2020] [Accepted: 03/20/2020] [Indexed: 12/22/2022] Open
Abstract
Bovine leukemia virus (BLV) is the causative agent of enzootic bovine leucosis. However, less than 5% of BLV-infected cattle will develop lymphoma, suggesting that, in addition to viral infection, host genetic polymorphisms might play a role in disease susceptibility. Bovine leukocyte antigen (BoLA)-DRB3 is a highly polymorphic gene associated with BLV proviral load (PVL) susceptibility. Due to the fact that PVL is positively associated with disease progression, it is believed that controlling PVL can prevent lymphoma development. Thus, many studies have focused on the relationship between PVL and BoLA-DRB3. Despite this, there is little information regarding the relationship between lymphoma and BoLA-DRB3. Furthermore, whether or not PVL-associated BoLA-DRB3 is linked to lymphoma-associated BoLA-DRB3 has not been clarified. Here, we investigated whether or not lymphoma-associated BoLA-DRB3 is correlated with PVL-associated BoLA-DRB3. We demonstrate that two BoLA-DRB3 alleles were specifically associated with lymphoma resistance (*010:01 and *011:01), but no lymphoma-specific susceptibility alleles were found; furthermore, two other alleles, *002:01 and *012:01, were associated with PVL resistance and susceptibility, respectively. In contrast, lymphoma and PVL shared two resistance-associated (DRB3*014:01:01 and *009:02) BoLA-DRB3 alleles. Interestingly, we found that PVL associated alleles, but not lymphoma associated alleles, are related with the anti-BLV gp51 antibody production level in cows. Overall, our study is the first to demonstrate that the BoLA-DRB3 polymorphism confers differential susceptibility to BLV-induced lymphoma and PVL.
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Affiliation(s)
- Chieh-Wen Lo
- Laboratory of Global Animal Resource Science, Graduate School of Agricultural and Life Sciences, the University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; (L.B.); (S.S.); (S.-n.T.)
- Photonics Control Technology Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
| | - Liushiqi Borjigin
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; (L.B.); (S.S.); (S.-n.T.)
- Nakamura Laboratory, Baton Zone Program, RIKEN Cluster for Science, Technology and Innovation Hub, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Susumu Saito
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; (L.B.); (S.S.); (S.-n.T.)
- Photonics Control Technology Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;
| | - Koya Fukunaga
- Laboratory for Pharmacogenomics, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa 230-0045, Japan;
| | - Etsuko Saitou
- Hyogo Prefectural Awaji Meat Inspection Center, 49-18 Shitoorinagata, Minamiawaji, Hyogo 656-0152, Japan;
| | - Katsunori Okazaki
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan;
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;
| | - Satoshi Wada
- Photonics Control Technology Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
| | - Shin-nosuke Takeshima
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; (L.B.); (S.S.); (S.-n.T.)
- Photonics Control Technology Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
- Department of Food and Nutrition, Jumonji University, Niiza, Saitama 352-8510, Japan
| | - Yoko Aida
- Laboratory of Global Animal Resource Science, Graduate School of Agricultural and Life Sciences, the University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; (L.B.); (S.S.); (S.-n.T.)
- Nakamura Laboratory, Baton Zone Program, RIKEN Cluster for Science, Technology and Innovation Hub, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;
- Correspondence:
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Woolley M, Stebbings S, Highton J. Statin-associated immune-mediated necrotising myopathy: a New Zealand case series showing possible overrepresentation in Pacific Islanders. Intern Med J 2018; 48:32-36. [DOI: 10.1111/imj.13575] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 07/06/2017] [Accepted: 07/30/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Michelle Woolley
- Department of Rheumatology; Dunedin Hospital; Dunedin New Zealand
| | - Simon Stebbings
- Department of Medicine, Dunedin school of Medicine; University of Otago; Dunedin New Zealand
| | - John Highton
- Department of Medicine, Dunedin school of Medicine; University of Otago; Dunedin New Zealand
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Samandary S, Kridane-Miledi H, Sandoval JS, Choudhury Z, Langa-Vives F, Spencer D, Chentoufi AA, Lemonnier FA, BenMohamed L. Associations of HLA-A, HLA-B and HLA-C alleles frequency with prevalence of herpes simplex virus infections and diseases across global populations: implication for the development of an universal CD8+ T-cell epitope-based vaccine. Hum Immunol 2014; 75:715-29. [PMID: 24798939 DOI: 10.1016/j.humimm.2014.04.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 04/15/2014] [Accepted: 04/15/2014] [Indexed: 02/01/2023]
Abstract
A significant portion of the world's population is infected with herpes simplex virus type 1 and/or type 2 (HSV-1 and/or HSV-2), that cause a wide range of diseases including genital herpes, oro-facial herpes, and the potentially blinding ocular herpes. While the global prevalence and distribution of HSV-1 and HSV-2 infections cannot be exactly established, the general trends indicate that: (i) HSV-1 infections are much more prevalent globally than HSV-2; (ii) over a half billion people worldwide are infected with HSV-2; (iii) the sub-Saharan African populations account for a disproportionate burden of genital herpes infections and diseases; (iv) the dramatic differences in the prevalence of herpes infections between regions of the world appear to be associated with differences in the frequencies of human leukocyte antigen (HLA) alleles. The present report: (i) analyzes the prevalence of HSV-1 and HSV-2 infections across various regions of the world; (ii) analyzes potential associations of common HLA-A, HLA-B and HLA-C alleles with the prevalence of HSV-1 and HSV-2 infections in the Caucasoid, Oriental, Hispanic and Black major populations; and (iii) discusses how our recently developed HLA-A, HLA-B, and HLA-C transgenic/H-2 class I null mice will help validate HLA/herpes prevalence associations. Overall, high prevalence of herpes infection and disease appears to be associated with high frequency of HLA-A(∗)24, HLA-B(∗)27, HLA-B(∗)53 and HLA-B(∗)58 alleles. In contrast, low prevalence of herpes infection and disease appears to be associated with high frequency of HLA-B(∗)44 allele. The finding will aid in developing a T-cell epitope-based universal herpes vaccine and immunotherapy.
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Affiliation(s)
- Sarah Samandary
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Hédia Kridane-Miledi
- UNITE INSERM 1016, Institut Cochin, Hôpital Saint-Vincent-de-Paul, 82, Avenue Denfert-Rochereau, 75674 Paris Cedex 14, France
| | - Jacqueline S Sandoval
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Zareen Choudhury
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Francina Langa-Vives
- Plate-Forme Technologique, Centre d'Ingénierie Génétique Murine, Département de Biologie du Développement, Institut Pasteur, 75015 Paris, France
| | - Doran Spencer
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Aziz A Chentoufi
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - François A Lemonnier
- UNITE INSERM 1016, Institut Cochin, Hôpital Saint-Vincent-de-Paul, 82, Avenue Denfert-Rochereau, 75674 Paris Cedex 14, France
| | - Lbachir BenMohamed
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, CA 92697, USA; Institute for Immunology, University of California Irvine, Irvine, CA 92697, USA.
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6
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Edinur H, Dunn P, Hammond L, Selwyn C, Brescia P, Askar M, Reville P, Velickovic Z, Lea R, Chambers G. HLA and MICA polymorphism in Polynesians and New Zealand Maori: Implications for ancestry and health. Hum Immunol 2013; 74:1119-29. [DOI: 10.1016/j.humimm.2013.06.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/14/2013] [Accepted: 06/07/2013] [Indexed: 11/27/2022]
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7
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Miyasaka T, Takeshima SN, Jimba M, Matsumoto Y, Kobayashi N, Matsuhashi T, Sentsui H, Aida Y. Identification of bovine leukocyte antigen class II haplotypes associated with variations in bovine leukemia virus proviral load in Japanese Black cattle. ACTA ACUST UNITED AC 2012; 81:72-82. [DOI: 10.1111/tan.12041] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 09/29/2012] [Accepted: 11/09/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Y. Matsumoto
- Viral Infectious Diseases Unit; RIKEN; Wako; Saitama; Japan
| | - N. Kobayashi
- Gifu Prefectural Livestock Research Institute; Gifu; Japan
| | - T. Matsuhashi
- Gifu Prefectural Livestock Research Institute; Gifu; Japan
| | - H. Sentsui
- School of Veterinary Medicine; Nihon University; Fujisawa; Kanagawa; Japan
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8
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Edinur HA, Dunn PPJ, Hammond L, Selwyn C, Velickovic ZM, Lea RA, Chambers GK. Using HLA loci to inform ancestry and health in Polynesian and Maori populations. ACTA ACUST UNITED AC 2012; 80:509-22. [DOI: 10.1111/tan.12026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H. A. Edinur
- School of Biological Sciences; Victoria University of Wellington; Wellington; New Zealand
| | | | - L. Hammond
- New Zealand Blood Service; Auckland; New Zealand
| | - C. Selwyn
- New Zealand Blood Service; Auckland; New Zealand
| | - Z. M. Velickovic
- Molecular Genetics, Tissue Typing; Australian Red Cross Blood Service; Sydney; Australia
| | - R. A. Lea
- School of Medical Sciences; Griffith University; Gold Coast; Australia
| | - G. K. Chambers
- School of Biological Sciences; Victoria University of Wellington; Wellington; New Zealand
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9
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Thorsby E. The Polynesian gene pool: an early contribution by Amerindians to Easter Island. Philos Trans R Soc Lond B Biol Sci 2012; 367:812-9. [PMID: 22312048 PMCID: PMC3267125 DOI: 10.1098/rstb.2011.0319] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
It is now generally accepted that Polynesia was first settled by peoples from southeast Asia. An alternative that eastern parts of Polynesia were first inhabited by Amerindians has found little support. There are, however, many indications of a 'prehistoric' (i.e. before Polynesia was discovered by Europeans) contact between Polynesia and the Americas, but genetic evidence of a prehistoric Amerindian contribution to the Polynesian gene pool has been lacking. We recently carried out genomic HLA (human leucocyte antigen) typing as well as typing for mitochondrial DNA (mtDNA) and Y chromosome markers of blood samples collected in 1971 and 2008 from reputedly non-admixed Easter Islanders. All individuals carried HLA alleles and mtDNA types previously found in Polynesia, and most of the males carried Y chromosome markers of Polynesian origin (a few had European Y chromosome markers), further supporting an initial Polynesian population on Easter Island. The HLA investigations revealed, however, that some individuals also carried HLA alleles which have previously almost only been found in Amerindians. We could trace the introduction of these Amerindian alleles to before the Peruvian slave trades, i.e. before the 1860s, and provide suggestive evidence that they were introduced already in prehistoric time. Our results demonstrate an early Amerindian contribution to the Polynesian gene pool on Easter Island, and illustrate the usefulness of typing for immunogenetic markers such as HLA to complement mtDNA and Y chromosome analyses in anthropological investigations.
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Affiliation(s)
- Erik Thorsby
- Institute of Immunology, Oslo University Hospital, Rikshospitalet, and University of Oslo, Oslo, Norway.
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Schnitzler M, Fisch P. A role for microchimerism in obesity and evolution? Med Hypotheses 2012; 78:528-32. [PMID: 22325989 DOI: 10.1016/j.mehy.2012.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 12/14/2011] [Accepted: 01/16/2012] [Indexed: 11/16/2022]
Abstract
Cells exchanged between individuals, such as those passing the placenta from the mother to the child and vice versa, may survive in the fetal or maternal circulation and tissues for decades and result in microchimerism. Microchimeric cells may play a role in tissue repair, but they have also been implicated as inducers of chronic inflammation, leading to autoimmunity or even cancer. Here we propose that microchimerism may play a more fundamental role in health and evolution by setting a limit to genomic variability within populations. This means that microchimerism allows immune recognition of genomic differences between donor and host which may, depending on the level of variability, cause chronic inflammation. Since chronic inflammation has been experimentally linked to metabolic syndrome, we propose that genomic variability could affect the individual's weight. Thus, metabolic syndrome, which is a growing health problem, may not only result from our lifestyle, but in part be caused by global migration and the increasingly diverse origin of the present human population. Moreover, since in nature weight gain is associated with an increased risk of predation, we discuss the possibility that immunological incompatibility normally promotes the continuous development of new species.
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Affiliation(s)
- Marc Schnitzler
- Department of Hematology and Oncology, Freiburg University Medical Center, Hugstetter Str. 55, 79106 Freiburg, Germany.
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11
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Miyasaka T, Takeshima SN, Matsumoto Y, Kobayashi N, Matsuhashi T, Miyazaki Y, Tanabe Y, Ishibashi K, Sentsui H, Aida Y. The diversity of bovine MHC class II DRB3 and DQA1 alleles in different herds of Japanese Black and Holstein cattle in Japan. Gene 2011; 472:42-9. [DOI: 10.1016/j.gene.2010.10.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 10/08/2010] [Accepted: 10/09/2010] [Indexed: 11/16/2022]
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12
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Balancing selection and heterogeneity across the classical human leukocyte antigen loci: a meta-analytic review of 497 population studies. Hum Immunol 2008; 69:443-64. [PMID: 18638659 DOI: 10.1016/j.humimm.2008.05.001] [Citation(s) in RCA: 262] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 05/03/2008] [Accepted: 05/07/2008] [Indexed: 12/21/2022]
Abstract
This paper presents a meta-analysis of high-resolution human leukocyte antigen (HLA) allele frequency data describing 497 population samples. Most of the datasets were compiled from studies published in eight journals from 1990 to 2007; additional datasets came from the International Histocompatibility Workshops and from the AlleleFrequencies.net database. In all, these data represent approximately 66,800 individuals from throughout the world, providing an opportunity to observe trends that may not have been evident at the time the data were originally analyzed, especially with regard to the relative importance of balancing selection among the HLA loci. Population genetic measures of allele frequency distributions were summarized across populations by locus and geographic region. A role for balancing selection maintaining much of HLA variation was confirmed. Further, the breadth of this meta-analysis allowed the ranking of the HLA loci, with DQA1 and HLA-C showing the strongest balancing selection and DPB1 being compatible with neutrality. Comparisons of the allelic spectra reported by studies since 1990 indicate that most of the HLA alleles identified since 2000 are very-low-frequency alleles. The literature-based allele-count data, as well as maps summarizing the geographic distributions for each allele, are available online.
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Lie BA, Dupuy BM, Spurkland A, Fernández-Viña MA, Hagelberg E, Thorsby E. Molecular genetic studies of natives on Easter Island: evidence of an early European and Amerindian contribution to the Polynesian gene pool. ACTA ACUST UNITED AC 2007; 69:10-8. [PMID: 17212703 DOI: 10.1111/j.1399-0039.2006.00717.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Most archaeological and linguistic evidence suggest a Polynesian origin of the population of Easter Island (Rapanui), and this view has been supported by the identification of Polynesian mitochondrial DNA (mtDNA) polymorphisms in prehistoric skeletal remains. However, some evidence of an early South American contact also exists (the sweet potato, bottle gourd etc.), but genetic studies have so far failed to show an early Amerindian contribution to the gene pool on Easter Island. To address this issue, we analyzed mtDNA and Y chromosome markers and performed high-resolution human leukocyte antigen (HLA) genotyping of DNA harvested from previously collected sera of 48 reputedly nonadmixed native Easter Islanders. All individuals carried mtDNA types and HLA alleles previously found in Polynesia, and most men carried Y chromosome markers of Polynesian origin, providing further evidence of a Polynesian origin of the population of Easter Island. A few individuals carried HLA alleles and/or Y chromosome markers of European origin. More interestingly, some individuals carried the HLA alleles A*0212 and B*3905, which are of typical Amerindian origin. The genealogy of some of the individuals carrying these non-Polynesian HLA alleles and their haplotypic backgrounds suggest an introduction into Easter Island in the early 1800s, or earlier. Thus, there may have been an early European and Amerindian contribution to the Polynesian gene pool of Easter Island.
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Affiliation(s)
- B A Lie
- Institute of Immunology, Rikshospitalet-Radiumhospitalet Medical Center, Oslo, Norway
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Tracey MC, Carter JM. Class II HLA allele polymorphism: DRB1, DQB1 and DPB1 alleles and haplotypes in the New Zealand Maori population. ACTA ACUST UNITED AC 2007; 68:297-302. [PMID: 17026464 DOI: 10.1111/j.1399-0039.2006.00671.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Class II alleles of interest to transplantation comprise the DRB1, DQB1 and DPB1 loci. Sequence-based typing was used to determine the class II allelic variability present in New Zealand Maori, a population with close genetic ties to Polynesia and known anthropological and linguistic connections to mainland Asia. The most common DRB1 alleles identified were DRB1*1201, DRB1*110101, DRB1*0403 and DRB1*080302, with frequencies of 21.5%, 14%, 11.25% and 9.25%, respectively. Standard linkages between the DRB1 locus and the DRB3, 4 and 5 loci were maintained, with no novel patterns identified. The most common DQB1 alleles identified were DQB1*030101, DQB1*060101, DQB1*020101, DQB1*0602 and DQB1*050201, with frequencies of 29.5%, 8%, 7.8%, 6.4% and 6.2%, respectively. The most common DPB1 alleles identified were DPB1*0501, DPB1*040101 and DPB1*020102, with frequencies of 40.2%, 28.89% and 15.83%, respectively. A total of 80 estimated DRB1-DQB1 two-locus haplotypes were detected. DRB1*1201-DQB1*030101 was the most frequent (15.40%) haplotype, followed by DRB1*110101-DQB1*030101 (9.97%), DRB1*0403-DQB1*030201 (7.37%) and DRB1*080302-DQB1*060101 (5.96%). The allelic variation determined is being used in further analysis of the requirement for bone marrow transplantation in the New Zealand Maori population and has implications for optimal ethnic donor distribution on the New Zealand Bone Marrow Donor Registry, anthropological studies and disease association.
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Affiliation(s)
- M C Tracey
- Department of Pathology and Molecular Medicine, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand.
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15
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Velickovic M, Velickovic Z, Dunckley H. Diversity of killer cell immunoglobulin-like receptor genes in Pacific Islands populations. Immunogenetics 2006; 58:523-32. [PMID: 16733717 DOI: 10.1007/s00251-006-0124-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2005] [Accepted: 05/01/2006] [Indexed: 10/24/2022]
Abstract
Killer immunoglobulin-like receptors (KIRs) regulate the activity of NK and T cells through interaction with specific HLA class I molecules on target cells. To date, 16 KIR genes and pseudogenes have been identified. Diversity in KIR gene content and KIR allelic and haplotype polymorphism has been observed between different ethnic groups. Here, we present data on the KIR gene distribution in Pacific Islands populations. Sixteen KIR genes were observed in Pacific Islands populations from the Cook Islands, Samoa, Tokelau, and Tonga. The majority of KIR genes were present at similar frequencies between the four populations with KIR2DL4, KIR3DL2, and KIR3DP1 genes observed in all individuals. Commonly observed KIR genes in Pacific Islands populations (pooled frequencies) were KIR2DL1 (0.77), KIR2DL3 (0.77), KIR3DL1 (0.65), KIR3DL3 (0.93), KIR2DS4/1D (0.78), and KIR2DP1 (0.82), compared to the less-frequently observed KIR2DL2 (0.27), KIR2DL5 (0.30), KIR2DS1 (0.19), KIR2DS2 (0.27), KIR2DS3 (0.16), KIR2DS5 (0.17), and KIR3DS1 (0.18) genes. Differences in KIR gene frequency distributions were observed between the Pacific Islands populations and when compared to other populations. Sixty-nine different genotypes were identified, with five genotypes accounting for more then 50% of all genotypes observed. The number of genotypes observed in each population was similar in the Cook Islands, Samoan, and Tokelauan populations (19, 18, and 19, respectively), but 26 different genotypes were observed in Tongans. The putative haplotype A was predominantly observed over haplotype B in all Pacific Islands populations. Significant linkage disequilibrium was observed for a number of KIR gene pairs.
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MESH Headings
- Gene Frequency
- Genotype
- Haplotypes
- Humans
- Killer Cells, Natural/immunology
- Linkage Disequilibrium
- Native Hawaiian or Other Pacific Islander/genetics
- Polymorphism, Genetic
- Polynesia
- Pseudogenes
- Receptors, Immunologic/genetics
- Receptors, KIR
- Receptors, KIR2DL1
- Receptors, KIR2DL2
- Receptors, KIR2DL3
- Receptors, KIR2DL4
- Receptors, KIR3DL1
- Receptors, KIR3DL2
- Receptors, KIR3DS1
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Affiliation(s)
- Marija Velickovic
- Molecular Genetics Section, Tissue Typing, Australian Red Cross Blood Service, 153 Clarence Street, Sydney, NSW 2000, Australia.
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16
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OHASHI JUN, NAKA IZUMI, KIMURA RYOSUKE, TOKUNAGA KATSUSHI, NAKAZAWA MINATO, ATAKA YUJI, OHTSUKA RYUTARO, INAOKA TSUKASA, MATSUMURA YASUHIRO. HLA-DRB1 polymorphism on Ha'ano island of the Kingdom of Tonga. ANTHROPOL SCI 2006. [DOI: 10.1537/ase.050907] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- JUN OHASHI
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo
| | - IZUMI NAKA
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo
| | - RYOSUKE KIMURA
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo
| | - KATSUSHI TOKUNAGA
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo
| | - MINATO NAKAZAWA
- Socio-Environmental Health Sciences, Graduate School of Medicine, Gunma University
| | - YUJI ATAKA
- School of Policy Studies, Kwansei Gakuin University
| | | | - TSUKASA INAOKA
- Department of Environmental Sociology, Faculty of Agriculture, Saga University
| | - YASUHIRO MATSUMURA
- Division of Health Informatics and Education, National Institute of Health and Nutrition, Tokyo
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17
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Zhou L, Lin B, Xie Y, Liu Z, Yan W, Xu A. Polymorphism of human leukocyte antigen-DRB1, -DQB1, and -DPB1 genes of Shandong Han population in China. ACTA ACUST UNITED AC 2005; 66:37-43. [PMID: 15982255 DOI: 10.1111/j.1399-0039.2005.00418.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present study, polymerase chain reaction-sequence-based typing (PCR-SBT) was used to analyze human leukocyte antigen (HLA)-DRB1, -DQB1, and -DPB1 alleles of 98 unrelated healthy Shandong Han individuals. A total of 60 alleles, in which 28 in DRB1, 15 in DQB1 and 17 in DPB1 were found. Among the 28 detected DRB1 alleles, DRB1*150101, DRB1*070101, DRB1*090102, DRB1*120201, and DRB1*080302 were commonly observed, with frequencies of 16.3%, 11.2%, 10.2%, 8.2%, and 5.6%, respectively. The most predominant DQB1 allele was DQB1*030101/0309 with the frequency of 20.4%, followed by DQB1*0201/0202 (14.8%), DQB1*0602 (14.3%), DQB1*030302 (12.2%), and DQB1*060101/060103 (10.7%). Of the 17 detected DPB1 alleles, DPB1*0501 was the most frequent allele with the frequency of 37.2%. DPB1*020102 (18.4%), DPB1*040101 (11.2%), DPB1*0402 (7.1%), and DPB1*1701 (6.6%) were also very frequent alleles. A total of 53 estimated DRB1-DQB1 two-locus haplotypes were observed in Shandong Han population, of which DRB1*150101-DQB1*0602 was the most predominant, followed by DRB1*090102-DQB1*030302, DRB1*070101-DQB1*0201/0202 DRB1*120201-DQB1*030101/0309, and DRB1*080302- DQB1*060101/060103. The distribution of the HLA class II alleles and haplotypes frequencies as well as the dendrogram showed that the Shandong Han population belongs to the northern group of Chinese. The data have implications for anthropological studies and disease associations.
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Affiliation(s)
- L Zhou
- Key Laboratory of Genetic Engineering of Ministry of Education, Department of Biochemistry, College of Life Sciences, Sun Yat-Sen (Zhongshan) University, Guangzhou, People's Republic of China
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18
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Ohashi J, Naka I, Ohtsuka R, Inaoka T, Ataka Y, Nakazawa M, Tokunaga K, Matsumura Y. Molecular polymorphism of ABO blood group gene in Austronesian and non-Austronesian populations in Oceania. ACTA ACUST UNITED AC 2004; 63:355-61. [PMID: 15009807 DOI: 10.1111/j.1399-0039.2004.0190.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A number of archeological, linguistic, and genetic studies have been carried out on the peopling of the Pacific, while the origin of Polynesians or the Lapita people is still open to debate. The Lapita people are believed to have populated the Bismarck Archipelago more than 3600 years ago. However, their Melanesian descendants still living in the Bismarck Archipelago have not been genetically clarified yet. To address this question, polymorphism of the ABO blood group gene was investigated in the following three populations who are considered to be almost free from recent admixtures: (i) Balopa islanders as Austronesian (AN)-speaking Melanesians living in the northwestern end of the Bismarck Archipelago; (ii) Gidra as non-Austronesian (NAN)-speaking Melanesians in southwestern lowlands of Papua New Guinea; and (iii) Tongan living in Ha'apai island as AN-speaking Polynesians. Interestingly, there were marked differences in allele frequencies of ABO*A101 and ABO*A102 among the three populations. The allele frequencies of ABO*A101 and ABO*A102 were 7.9 and 19.3% in Balopa, 23.2 and 0.0% in Gidra, and 2.9 and 25.0% in Tongan. Both phylogenetic and correspondence analyses suggested that Balopa was more close to Tongan than to Gidra and that Balopa was genetically placed between Tongan and Asian populations. Our results imply that Balopa may be Melanesian descendants of the Lapita people who populated the Bismarck Archipelago.
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Affiliation(s)
- J Ohashi
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
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