Association of BoLA-DRB3.2 Alleles with BLV Infection Profiles (Persistent Lymphocytosis/Lymphosarcoma) and Lymphocyte Subsets in Iranian Holstein Cattle

Biochemical Genetics
Gholamreza Nikbakht BrujeniAtefeh Esmailnejad

Abstract

Major histocompatibility complex (MHC) is the best-characterized genetic region associated with resistance and susceptibility to a wide range of diseases. In cattle, the most important example of the relationship between the MHC and infectious diseases has been established by the resistance to Bovine leukemia virus (BLV) infection. The association of the bovine MHC class II BoLA-DRB3.2 alleles with BLV infection profiles was examined. BoLA-DRB3.2 allelic diversity was determined in 190 Iranian Holstein cattle using direct sequencing method. Association of the DRB3.2 alleles with BLV infection profiles was found as the odds ratio. Effects of the alleles on lymphocyte subsets were also evaluated by multivariate regression analysis and GLM procedures. The studied cattle were categorized into three groups: BLV seronegative, BLV seropositive with persistent lymphocytosis (PL), and BLV seropositive with lymphosarcoma (LS). The PL profile was significantly associated with the BoLA-DRB3.2*0101, *1101 and *4201 alleles, although the *3202 allele mediating resistance to PL was observed. Significant association was found between the BoLA-DRB3.2*1802, *3202, and *0901 alleles and susceptibility to LS, while the *0101 and *1101 alleles were...Continue Reading

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Citations

Aug 2, 2017·The Journal of Veterinary Medical Science·Takumi HayashiJunzo Norimine
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Hala El DaousSatoshi Sekiguchi
Jul 3, 2021·Animals : an Open Access Journal From MDPI·Lwamkelekile Sitshilelo Mkize, Oliver Tendayi Zishiri

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