Downmodulation of CD3ε expression in CD8α+β− T cells of feline immunodeficiency virus-infected cats

Downmodulation of CD3ε expression in CD8α+β− T cells of feline immunodeficiency virus-infected cats
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猫免疫缺陷病毒感染猫 CD8α+β− T 细胞中 CD3ε 表达下调

DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
T. Miyazawa
T. Miyazawa
中科院分区:
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文献类型:
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作者:
Y. Nishimura;M. Shimojima;E. Sato;Y. Izumiya;Y. Tohya;T. Mikami;T. Miyazawa

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猫的猫免疫缺陷病毒(FIV)感染与外周血中猫CD(fCD)8α + β −和fCD 8 α + β low细胞的增加有关。为了更详细地研究这些细胞,产生了称为NZM1的抗fCD3e mAb,其识别fCD3e分子的细胞外表位。由于淋巴细胞中存在fCD5+fCD3e −细胞,因此抗fCD3e mAb被证明比抗fCD5 mAb更适合识别猫T细胞,后者已被用作猫的泛T细胞试剂。尽管FIV感染猫的fCD8α + β −和fCD8α + β low细胞表达fCD3e,但fCD8α + β −细胞亚群表达的fCD3e抗原水平低于表型为fCD4+或fCD8α + β low的T细胞。fCD3e的低表达可能与fCD8α + β − T细胞的免疫状态有关。
Feline immunodeficiency virus (FIV) infection in cats is associated with an increase of feline CD (fCD)8α + β − and fCD8α + β low cells in peripheral blood. To investigate these cells in more detail, an anti-fCD3e mAb, termed NZM1, was generated, which recognizes the extracellular epitope of the fCD3e molecule. The anti-fCD3e mAb proved to be more suitable for identifying feline T cells than the anti-fCD5 one, which has been used as a pan-T-cell reagent in cats, because of the presence of fCD5+fCD3e − cells among lymphocytes. Although the fCD8α + β − and fCD8α + β low cells in the FIV-infected cats expressed fCD3e, a subset of fCD8α + β − cells expressed fCD3e antigen at a lower level than the T cells whose phenotype was fCD4+, or fCD8α + β low. The lower expression of fCD3e may be associated with the immune status of fCD8α + β − T cells.
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。
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