Cummins James E, Boneva Roumiana S, Switzer William M, Christensen Logan L, Sandstrom Paul, Heneine Walid, Chapman Louisa E, Dezzutti Charlene S
HIV and Retrovirology Branch, Division of AIDS, STD, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
J Virol. 2005 Oct;79(20):13186-9. doi: 10.1128/JVI.79.20.13186-13189.2005.
Simian foamy virus (SFV) infection and the subsequent immune response are not well characterized. Blood plasma, saliva, and urine were obtained from four humans and nine chimpanzees persistently infected with chimpanzee-type SFV for an unknown length of time. SFV-specific immunoglobulin G (IgG) antibodies, but not IgA antibodies, against the Gag and Bet proteins were detected, by Western blotting, in all sample types from infected humans and chimpanzees. Overall, chimpanzee samples had higher anti-SFV IgG titers than humans. These results provide a first comparative evaluation of SFV-specific host mucosal humoral immunity in infected humans and chimpanzees that is characterized by a predominant IgG response and a virtually absent IgA response.
猿猴泡沫病毒(SFV)感染及其后续免疫反应尚未得到充分表征。从4名人类和9只黑猩猩身上采集了血浆、唾液和尿液,这些个体持续感染黑猩猩型SFV,感染时间未知。通过蛋白质印迹法在感染人类和黑猩猩的所有样本类型中检测到针对Gag和Bet蛋白的SFV特异性免疫球蛋白G(IgG)抗体,但未检测到IgA抗体。总体而言,黑猩猩样本中的抗SFV IgG滴度高于人类。这些结果首次对感染人类和黑猩猩中SFV特异性宿主黏膜体液免疫进行了比较评估,其特征是主要为IgG反应,而IgA反应几乎不存在。