Major histocompatibility complex class I haplotype diversity in Chinese rhesus macaques.

Major histocompatibility complex class I haplotype diversity in Chinese rhesus macaques.
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DOI:
10.1534/g3.113.006254
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发表时间:
2013-07-08
期刊:
G3 (Bethesda, Md.)
影响因子:
--
通讯作者:
O'Connor DH
O'Connor DH
中科院分区:
其他
文献类型:
--
作者:
Karl JA;Bohn PS;Wiseman RW;Nimityongskul FA;Lank SM;Starrett GJ;O'Connor DH

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尽管相对缺乏可用于该群体的主要组织相容性复合体 (MHC) I 类免疫遗传学信息,但越来越多地使用中国原产恒河猴 (Macaca mulatta) 进行传染病免疫研究。我们确定了来自五个不同实验组的 385 只中国恒河猴的基于转录本的 MHC I 类单倍型,提供了每只动物表达的 MHC I 类主要等位基因的完整补充的简明表示。在整个中国恒河猴队列中总共定义了 123 个 Mamu-A 和 Mamu-B 单倍型。然后,我们对中国恒河猴实验群体的单倍型频率进行了分析,并与 96 只印度恒河猴群体进行了比较。值得注意的是,在印度恒河猴中观察到的 51 种 Mamu-A 和 Mamu-B 单倍型中,有 35 种在中国人群中也被检测到,其中 385 只中国恒河猴中有 85% 表达至少一种 I 类单倍型。印度恒河猴 MHC I 类单倍型在中国恒河猴群体中出乎意料地保守,这表明最初从印度恒河猴研究中获得的免疫学见解可能比以前认为的更适用于中国恒河猴,并且可能为研究群体之间的 CD8+ T 细胞反应提供机会。由于我们发现了中国恒河猴和毛里求斯食蟹猴之间共享祖先单倍型的证据,因此也有可能将这些研究扩展到多种猕猴。
The use of Chinese-origin rhesus macaques (Macaca mulatta) for infectious disease immunity research is increasing despite the relative lack of major histocompatibility complex (MHC) class I immunogenetics information available for this population. We determined transcript-based MHC class I haplotypes for 385 Chinese rhesus macaques from five different experimental cohorts, providing a concise representation of the full complement of MHC class I major alleles expressed by each animal. In total, 123 Mamu-A and Mamu-B haplotypes were defined in the full Chinese rhesus macaque cohort. We then performed an analysis of haplotype frequencies across the experimental cohorts of Chinese rhesus macaques, as well as a comparison against a group of 96 Indian rhesus macaques. Notably, 35 of the 51 Mamu-A and Mamu-B haplotypes observed in Indian rhesus macaques were also detected in the Chinese population, with 85% of the 385 Chinese-origin rhesus macaques expressing at least one of these class I haplotypes. This unexpected conservation of Indian rhesus macaque MHC class I haplotypes in the Chinese rhesus macaque population suggests that immunologic insights originally gleaned from studies using Indian rhesus macaques may be more applicable to Chinese rhesus macaques than previously appreciated and may provide an opportunity for studies of CD8+ T-cell responses between populations. It may also be possible to extend these studies across multiple species of macaques, as we found evidence of shared ancestral haplotypes between Chinese rhesus and Mauritian cynomolgus macaques.
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