Expansion of CD8alpha+beta- cells in cats infected with feline immunodeficiency virus.

Expansion of CD8alpha+beta- cells in cats infected with feline immunodeficiency virus.
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感染猫免疫缺陷病毒的猫体内 CD8α β 细胞的扩增。

DOI:
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发表时间:
1998
影响因子:
3.8
通讯作者:
T. Mikami
T. Mikami
中科院分区:
医学3区
文献类型:
--
作者:
M. Shimojima;T. Miyazawa;M. Kohmoto;Y. Ikeda;Y. Nishimura;K. Maeda;Y. Tohya;T. Mikami

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在人类和多种动物的外周血淋巴细胞(PBL)中,CD8+淋巴细胞分为CD8αβ和CD8α亚群,但在猫中尚未被研究。猫免疫缺陷病毒(FIV)引起类似于人类艾滋病的进行性免疫紊乱。在这项研究中,我们用双色流式细胞术分析了感染FIV和未感染FIV的猫PBL中的CD8+细胞。在无特定病原体的成年猫中,观察到猫CD8α+β(高)细胞,但未发现CD8α+β细胞的显著数量。另一方面,在慢性感染FIV的猫中,不仅观察到CD8α+β(高)细胞群,而且还观察到CD8α+β-和CD8α+β(低)细胞群。CD8β亚群(低)或CD8β亚群的扩大导致了CD4/CD8比率的明显差异,这取决于所使用的抗CD8单抗。这些发现表明,在研究FIV感染时,有必要重新考虑CD4/CD8比率。此外,我们还发现CD8α+β细胞群体表达CD5的水平较低。
CD8+ lymphocytes have been subdivided into CD8alphabeta and CD8alpha alpha populations in the peripheral blood lymphocytes (PBL) of humans and in several animal species but have not yet been investigated in cats. Feline immunodeficiency virus (FIV) causes progressive immunological disorders similar to human AIDS. In this study, we analysed CD8+ cells in PBL of FIV-infected or uninfected cats by two-colour flow cytometric analysis. In specific pathogen-free adult cats, feline CD8alpha+beta(high) cells were observed but CD8alpha+beta- cells were not found in significant numbers. On the other hand, not only CD8alpha+beta(high) but also CD8alpha+beta- and CD8alpha+beta(low) cell populations were observed in cats chronically infected with FIV. The expansion of the CD8beta(low) or CD8beta- subpopulations resulted in the apparent differences in CD4/CD8 ratios depending on the anti-CD8 MAb used. These findings suggest a need to reconsider the CD4/CD8 ratio in studies of FIV infection. Furthermore, we found that the CD8alpha+beta- cell population expressed CD5 at a low level.
由单克隆抗体 (FT2) 定义的猫胸腺细胞抗原可识别具有特定细胞毒性的非辅助细胞亚群。
DOI: --
发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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通讯作者: Cooper,MD
DOI: --
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J. Yamamoto;E. Sparger;E. Ho;P. Andersen;T. O'connor;C. P. Mandell;L. Lowenstine;R. Munn;N. Pedersen
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与 CD5 样分子反应的猫 T 细胞特异性单克隆抗体的表征。
DOI: --
发表时间: 1992
影响因子: 1
作者:
Ackley,CD;Cooper,MD
通讯作者: Cooper,MD
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DOI: 10.1016/0165-2427(90)90115-9
发表时间: 1990
影响因子: 1.8
作者:
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通讯作者: Tompkins,WA