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CD4 + CD25 + Regulatory T Cell Isolation Kit

CD4 + CD25 + Regulatory T Cell Isolation Kit

公司名称: Miltenyi Biotec
产品编号: 130-091-041
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Adoptive Transfer of Tumor Expanded Regulatory T Cells (Tregs)
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2016-08-20
[Abstract]  Regulatory T cells (Tregs), a subset of CD4+CD25+ T cells, infiltrate tumors and suppress antitumor activity of effector T and NK cells. Depletion of Tregs by anti CD25+ antibodies has been shown to reduce tumor growth and metastasis (Olkhanud et al., 2009). Conversely, adoptive transfer of Tregs induced immune suppression and promoted tumor growth (Smyth et al., 2006; Janakiram et al., 2015). We have adoptively transferred Tregs to evaluate their immunosuppressive function in vivo. Our study (Vences-Catalan et al., ... [摘要]  调节性T细胞(Treg)(CD4 + CD25 + T细胞的子集)浸润肿瘤并抑制效应T和NK细胞的抗肿瘤活性。已显示抗CD25 sup/+抗体减少Treg减少肿瘤生长和转移(Olkhanud等人,2009)。相反,Treg的过继转移诱导免疫抑制并促进肿瘤生长(Smyth等人,2006; Janakiram等人,2015)。我们已经过继转移Treg以评价它们在体内的免疫抑制功能。我们的研究(Vences-Catalan等人,2015)比较了源自荷瘤野生型的Treg与CD81KO小鼠的免疫抑制功效。以下协议可以适用于任何其他来源的Tregs。
 通过使用来自MACS Miltenyi Biotec的CD4 + CD25 +调节性T细胞分离试剂盒的两步程序分离和纯化淋巴结或脾肿瘤诱导的Treg。首先,通过阴性选择,然后CD25阳性选择+ T细胞富集CD4 + T细胞。然后将肿瘤诱导的纯化的Treg(CD3 + CD4 CD25 + FoxP3 + 与肿瘤细胞转化为幼稚小鼠(Winn测定)(Winn,1960)。根据研究需要,Treg也可以静脉内注射一次或几次。然后通过测径器或通过体内成像技术测量过继转移的Treg对肿瘤生长的影响。

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