T Cell Telomere Length in HIV-1 Infection: No Evidence for Increased CD4+ T Cell Turnover

T Cell Telomere Length in HIV-1 Infection: No Evidence for Increased CD4+ T Cell Turnover
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HIV-1 感染中的 T 细胞端粒长度:没有证据表明 CD4 T 细胞周转率增加

DOI:
10.1126/science.274.5292.1543
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发表时间:
1996
期刊:
影响因子:
56.9
通讯作者:
F. Miedema
F. Miedema
中科院分区:
综合性期刊1区
文献类型:
--
作者:
K. Wolthers;G. Bea;A. Wisman;S. Otto;A. M. de Roda Husman;N. Schaft;F. de Wolf;J. Goudsmit;R. Coutinho;A. van der Zee;L. Meyaard;F. Miedema

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获得性免疫缺陷综合征(AIDS)的进展与T细胞高周转率导致免疫系统再生能力衰竭有关。端粒末端限制性内切片段(TRF)长度作为细胞复制史的标志,在HIV-1感染过程中,CD8+ T细胞TRF长度减少,而CD4+ T细胞TRF长度保持稳定,这与端粒酶活性差异不能解释。这一观察结果提供了证据,证明在HIV-1感染过程中,CD8+ T细胞的周转率可以显著增加,而CD4+ T细胞则不然。这些结果与干扰细胞更新引起的HIV-1感染中CD4+ T细胞下降相一致。
Progression to acquired immunodeficiency syndrome (AIDS) has been related to exhaustion of the regenerative capacity of the immune system resulting from high T cell turnover. Analysis of telomeric terminal restriction fragment (TRF) length, a marker for cellular replicative history, showed that CD8+ T cell TRF length decreased but CD4+ T cell TRF length was stable during the course of human immunodeficiency virus type-1 (HIV-1) infection, which was not explained by differential telomerase activity. This observation provides evidence that turnover in the course of HIV-1 infection can be increased considerably in CD8+ T cells, but not in CD4+ T cells. These results are compatible with CD4+ T cell decline in HIV-1 infection caused by interference with cell renewal.
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