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Survey of Captive Cynomolgus Macaque Colonies for SRV/D Infection Using Polymerase Chain Reaction Assays

机译:聚合酶链反应法检测圈养食蟹猕猴SRV / D感染

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The exogenous simian type D retroviruses (SRV/Ds) are prevalent in macaque monkeys and sometimes cause immunodeficiency with anemia, weight loss, and persistent unresponsive diarrhea. SRV/D isolates are classified as subtypes 1 to 6, and the entire sequences of the gag region of SRV/D-1, -2, and -3 and SRV/D-Tsukuba (SRV/D-T) have been determined. We designed specific primers in the gag region of SRV/D-T that enabled us to directly detect by polymerase chain reaction (PCR) SRV/D-T proviral DNA sequences in DNA extracted from whole blood. Using this assay and another PCR assay that detects multiple SRV/D subtypes, we performed a survey for SRV/D infection in our specific pathogen-free (SPF) and conventional colonies at Tsukuba Primate Center (TPC). In the SPF colony, no SRV/D signal was detected in any animal. On the other hand, SRV/D-T was detected in 11 of 49 animals (22.5%) in the conventional colony. SRV/D-T was the only SRV/D subtype detected. Consequently, SRV/D-T is the major SRV/D subtype present in cynomolgus monkeys at TPC.
机译:外来猿猴D型逆转录病毒(SRV / Ds)在猕猴中盛行,有时会引起免疫缺陷,并伴有贫血,体重减轻和持续性无反应性腹泻。 SRV / D分离株被分类为1至6亚型,并且已确定SRV / D-1,-2和-3的gag区域和SRV / D-Tsukuba(SRV / D-T)的整个序列。我们在SRV / D-T的插入区域设计了特异性引物,使我们能够通过聚合酶链反应(PCR)直接检测从全血中提取的DNA中的SRV / D-T前病毒DNA序列。我们使用该检测方法和另一种检测多种SRV / D亚型的PCR检测方法,对筑波灵长类动物中心(TPC)的无特定病原体(SPF)和常规菌落的SRV / D感染进行了调查。在SPF菌落中,在任何动物中均未检测到SRV / D信号。另一方面,在常规殖民地的49只动物中有11只(22.5%)检测到SRV / D-T。 SRV / D-T是唯一检测到的SRV / D亚型。因此,SRV / D-T是TPC食蟹猴中存在的主要SRV / D亚型。

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