Induction of feline immunodeficiency virus-specific cytolytic T-cell responses from experimentally infected cats
Induction of feline immunodeficiency virus-specific cytolytic T-cell responses from experimentally infected cats
复制标题
从实验感染的猫中诱导猫免疫缺陷病毒特异性溶细胞 T 细胞反应
作者:
W. Song;E. Collisson;P. Billingsley;W. Brown
We have examined the in vitro induction and activity of feline immunodeficiency virus (FIV)-specific cytolytic T cells obtained from cats experimentally infected for 7 to 17 weeks or 20 to 22 months with the Petaluma isolate of FIV. Normal or FIV-infected autologous and allogeneic T lymphoblastoid cells were used as target cells in chromium-51 or indium-111 release assays. When effector cells consisted of either fresh peripheral blood mononuclear cells or concanavalin A- and interleukin-2-stimulated cells, only low levels of cytotoxicity were observed. However, the levels of FIV-specific cytotoxicity were consistently higher in both groups of cats following in vitro stimulation of the effector cells with irradiated, FIV-infected autologous T lymphoblastoid cells and interleukin-2. The effector cells lysed autologous but not allogeneic FIV-infected target cells and were composed predominantly of CD8+ T cells, indicating that the FIV-specific cytotoxicity measured in this system is mediated by CD8+, major histocompatibility complex class I-restricted T cells. These studies show that FIV-specific cytolytic T cells can be detected as early as 7 to 9 weeks postinfection, and they define a system to identify virus-encoded epitopes important in the induction of protective immunity against lentiviruses.
登录
查看更多内容
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Klotz,FW;Cooper,MD
通讯作者:
Cooper,MD
DOI:
--
发表时间:
1990
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Miller,MD;Lord,CI;Stallard,V;Mazzara,GP;Letvin,NL
通讯作者:
Letvin,NL
DOI:
--
发表时间:
1988
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Kannagi,M;Chalifoux,LV;Lord,CI;Letvin,NL
通讯作者:
Letvin,NL
DOI:
--
发表时间:
1989-01
期刊:
Journal of the American Veterinary Medical Association
影响因子:
--
作者:
J. Yamamoto;H. Hansen;E. Ho;T. Morishita;T. Okuda;T. Sawa;R. Nakamura;N. Pedersen
通讯作者:
J. Yamamoto;H. Hansen;E. Ho;T. Morishita;T. Okuda;T. Sawa;R. Nakamura;N. Pedersen
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Zarling,JM;Eichberg,JW;Moran,PA;McClure,J;Sridhar,P;Hu,SL
通讯作者:
Hu,SL