比较多克隆扩增方法以提高从感染 HIV 的女性生殖道来源的宫颈刷细胞中回收 T 细胞的效率。

Comparison of polyclonal expansion methods to improve the recovery of cervical cytobrush-derived T cells from the female genital tract of HIV-infected women.

机构信息

Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.

出版信息

J Immunol Methods. 2010 Mar 31;354(1-2):68-79. doi: 10.1016/j.jim.2010.02.002. Epub 2010 Feb 8.

Abstract

Cervical cytobrushing is a useful and non-invasive method for obtaining mucosal mononuclear cells from the female genital tract, but yields few cells. The aim of this study was to compare in vitro expansion protocols (anti-CD3, anti-CD3/CD28 or Dynal anti-CD3/CD28 beads) and cytokine combinations (IL-2, IL-7 and IL-15) to improve cervical T cell yields and viability. Eighteen HIV-infected women were included in this study to compare methods for polyclonal expansion of T cells from the female genital tract and blood. Comparison of T cell yields, viability and maturational status (by differential staining with CD45RO, CCR7 and CD27) was determined following 7 days of in vitro expansion. Anti-CD3 and IL-2 resulted in a 4.5-fold (range 3.7-5.3) expansion of cervical CD3+ T cells in 7 days compared to day 0. Inclusion of anti-CD28 or addition of IL-7 and IL-15 to this combination did not improve expansion. Culturing cells with Dynal beads (1:1) and IL-2, IL-7 and IL-15 gave rise to the highest yields after 7 days in both blood (7.1-fold) and cervix (5.6-fold). While expansion with anti-CD3 led to the accumulation of effector memory T cells (CD45RO+CCR7-CD27-), expansion with Dynabeads selected for accumulation of central memory T cells (CD45RO+CCR7+CD27+). We conclude that in vitro expansion with Dynabeads (1:1) in the presence of IL-2, IL-7 and IL-15 resulted in the greatest increase in viable T cells from both blood and cytobrush. Irrespective of the expansion method used, the T cell memory profile was altered following expansion.

摘要

宫颈刷取是一种从女性生殖道获取黏膜单核细胞的有用且非侵入性方法,但获得的细胞很少。本研究旨在比较体外扩增方案(抗-CD3、抗-CD3/CD28 或 Dynal 抗-CD3/CD28 珠)和细胞因子组合(IL-2、IL-7 和 IL-15),以提高宫颈 T 细胞的产量和活力。本研究纳入了 18 名 HIV 感染者,以比较从女性生殖道和血液中扩增 T 细胞的多克隆方法。通过 CD45RO、CCR7 和 CD27 的差异染色,比较了 7 天体外扩增后 T 细胞的产量、活力和成熟状态。与第 0 天相比,抗-CD3 和 IL-2 可使宫颈 CD3+T 细胞在 7 天内扩增 4.5 倍(范围为 3.7-5.3)。在该组合中加入抗-CD28 或添加 IL-7 和 IL-15 并不能提高扩增效果。在含 IL-2、IL-7 和 IL-15 的 Dynal 珠(1:1)中培养细胞可使血液(7 倍)和宫颈(5.6 倍)中的细胞在 7 天内获得最高产量。抗-CD3 扩增导致效应记忆 T 细胞(CD45RO+CCR7-CD27-)的积累,而 Dynabeads 扩增则选择中央记忆 T 细胞(CD45RO+CCR7+CD27+)的积累。我们得出结论,在含有 IL-2、IL-7 和 IL-15 的 Dynabeads(1:1)体外扩增可使血液和宫颈刷标本中的活 T 细胞数量显著增加。无论使用何种扩增方法,扩增后 T 细胞的记忆表型均发生改变。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5ffc/2854893/83c5685006f4/gr1.jpg

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