{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T21:49:43Z","timestamp":1790804983054,"version":"4.1.0"},"reference-count":56,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,12,6]],"date-time":"2012-12-06T00:00:00Z","timestamp":1354752000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Tissue Antigens"],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Bovine leukemia virus (<jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content>) is the etiological agent of enzootic bovine leukosis, which is the most common neoplastic disease of cattle. Bovine leukocyte antigen (<jats:styled-content style=\"fixed-case\">BoLA<\/jats:styled-content>) is strongly involved in the subclinical progression of <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> infections. Recent studies show that the <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DRB3<\/jats:styled-content><\/jats:italic> gene might play a direct role in controlling the number of <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content>\u2010infected peripheral B lymphocytes <jats:italic>in vivo<\/jats:italic> in Holstein cattle. However, the specific <jats:italic><jats:styled-content style=\"fixed-case\">BoLA<\/jats:styled-content><\/jats:italic> class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> allele and <jats:italic><jats:styled-content style=\"fixed-case\">DRB3\u2010DQA1<\/jats:styled-content><\/jats:italic> haplotypes determining the <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load in Japanese Black cattle are yet to be identified. In this study, we focused on the association of <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load and polymorphism of <jats:italic><jats:styled-content style=\"fixed-case\">BoLA<\/jats:styled-content><\/jats:italic> class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> in Japanese Black cattle. We genotyped 186 <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content>\u2010infected, clinically normal cattle for <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DRB3<\/jats:styled-content><\/jats:italic> and <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DQA1<\/jats:styled-content><\/jats:italic> using a polymerase chain reaction\u2010sequence\u2010based typing method. <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DRB3<\/jats:styled-content>*0902<\/jats:italic> and <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DRB3<\/jats:styled-content>*1101<\/jats:italic> were associated with a low proviral load (LPVL), and <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DRB3<\/jats:styled-content>*1601<\/jats:italic> was associated with a high proviral load (HPVL). Furthermore, <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DQA1<\/jats:styled-content>*0204<\/jats:italic> and <jats:italic><jats:styled-content style=\"fixed-case\">BoLA\u2010DQA1<\/jats:styled-content>*10012<\/jats:italic> were related to LPVL and HPVL, respectively. Furthermore, we confirmed the correlation between the <jats:italic><jats:styled-content style=\"fixed-case\">DRB3\u2010DQA1<\/jats:styled-content><\/jats:italic> haplotype and <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load. Two haplotypes, namely <jats:styled-content style=\"fixed-case\">0902B<\/jats:styled-content> or C (<jats:italic><jats:styled-content style=\"fixed-case\">DRB3<\/jats:styled-content>*0902\u2010<jats:styled-content style=\"fixed-case\">DQA1<\/jats:styled-content>*0204<\/jats:italic>) and <jats:styled-content style=\"fixed-case\">1101A<\/jats:styled-content> (<jats:italic><jats:styled-content style=\"fixed-case\">DRB3<\/jats:styled-content>*1101\u2010<jats:styled-content style=\"fixed-case\">DQA1<\/jats:styled-content>*10011<\/jats:italic>), were associated with a low <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load, whereas one haplotype <jats:styled-content style=\"fixed-case\">1601B<\/jats:styled-content> (<jats:italic><jats:styled-content style=\"fixed-case\">DRB3<\/jats:styled-content>*1601\u2010<jats:styled-content style=\"fixed-case\">DQA1<\/jats:styled-content>*10012<\/jats:italic>) was associated with a high <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load. We conclude that resistance is a dominant trait and susceptibility is a recessive trait. Additionally, resistant alleles were common between Japanese Black and Holstein cattle, and susceptible alleles differed. This is the first report to identify an association between the <jats:italic><jats:styled-content style=\"fixed-case\">DRB3\u2010DQA1<\/jats:styled-content><\/jats:italic> haplotype and variations in <jats:styled-content style=\"fixed-case\">BLV<\/jats:styled-content> proviral load.<\/jats:p>","DOI":"10.1111\/tan.12041","type":"journal-article","created":{"date-parts":[[2012,12,7]],"date-time":"2012-12-07T06:09:47Z","timestamp":1354860587000},"page":"72-82","source":"Crossref","is-referenced-by-count":89,"title":["Identification of bovine leukocyte antigen class II haplotypes associated with variations in bovine leukemia virus proviral load in Japanese Black cattle"],"prefix":"10.1111","volume":"81","author":[{"given":"T.","family":"Miyasaka","sequence":"first","affiliation":[{"name":"Viral Infectious Diseases Unit RIKEN  Wako Saitama Japan"},{"name":"School of Veterinary Medicine Nihon University  Fujisawa Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.\u2010n.","family":"Takeshima","sequence":"additional","affiliation":[{"name":"Viral Infectious Diseases Unit RIKEN  Wako Saitama Japan"},{"name":"Laboratory of Viral Infectious Diseases Department of Medical Genome Sciences Graduate School of Frontier Science The University of Tokyo  Wako Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Jimba","sequence":"additional","affiliation":[{"name":"Viral Infectious Diseases Unit RIKEN  Wako Saitama Japan"},{"name":"Laboratory of Viral Infectious Diseases Department of Medical Genome Sciences Graduate School of Frontier Science The University of Tokyo  Wako Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Viral Infectious Diseases Unit RIKEN  Wako Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Gifu Prefectural Livestock Research Institute  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.","family":"Matsuhashi","sequence":"additional","affiliation":[{"name":"Gifu Prefectural Livestock Research Institute  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Sentsui","sequence":"additional","affiliation":[{"name":"School of Veterinary Medicine Nihon University  Fujisawa Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Aida","sequence":"additional","affiliation":[{"name":"Viral Infectious Diseases Unit RIKEN  Wako Saitama Japan"},{"name":"Laboratory of Viral Infectious Diseases Department of Medical Genome Sciences Graduate School of Frontier Science The University of Tokyo  Wako Saitama 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