当前位置: X-MOL 学术Mol. Cancer Ther. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
CCR5-dependent homing of T regulatory cells to the tumor microenvironment contributes to skin squamous cell carcinoma development
Molecular Cancer Therapeutics ( IF 5.3 ) Pub Date : 2017-09-13 , DOI: 10.1158/1535-7163.mct-17-0341
Carine Ervolino de Oliveira 1 , Thaís Helena Gasparoto 2 , Claudia Ramos Pinheiro 2 , Nádia Ghinelli Amôr 2 , Maria Renata Sales Nogueira 3 , Ramon Kaneno 4 , Gustavo Pompermaier Garlet 2 , Vanessa Soares Lara 1 , João Santana Silva 5 , Karen Angélica Cavassani 6 , Ana Paula Campanelli 2
Affiliation  

Squamous cell carcinoma (SCC) is one of the most common human cancers worldwide. Recent studies show that regulatory T cells (Treg) have a critical role in the modulation of an antitumor immune response, and consequently the SCC development. Because the accumulation of Tregs at the tumor site is, in part, due to selective recruitment through CCR5- and CCR5-associated chemokines, we investigated the role of CCR5 in the SCC development. Our findings showed that CCR5-deficient mice (CCR5KO) were efficient in controlling papilloma's incidence when compared with wild-type mice. Analysis of tumor lesions in wild-type (WT) and CCR5KO mice revealed that lack of CCR5 lead to significant reduction in frequency of Tregs and increased of CD4 T cells into the tumors. Moreover, the adoptive transfer of naturally occurring Tregs CD4+CD25+CCR5+, CD4+CD25−CCR5+ or CD8+CCR5+ conventional T cells to CCR5KO mice resulted in an increased papilloma incidence. Interestingly, adoptive transfer of WT CD4+CD25+CCR5+ cells to CCR5KO mice induced more undifferentiated SCC lesions, characterized by higher infiltration of macrophages and dendritic cells. In this study, we also demonstrated that Treg migration to the tumor microenvironment is mediated by CCR5, and these cells are promoting tumor growth via inhibition of antitumor cells such as cytotoxic CD8+ T cells. Our findings reinforce the therapeutic potential of CCR5 inhibition for cancer treatment, and indicate an attractive approach for SCC treatment. Mol Cancer Ther; 16(12); 2871–80. ©2017 AACR.

中文翻译:

CCR5 依赖的 T 调节细胞归巢到肿瘤微环境有助于皮肤鳞状细胞癌的发展

鳞状细胞癌 (SCC) 是全球最常见的人类癌症之一。最近的研究表明,调节性 T 细胞 (Treg) 在调节抗肿瘤免疫反应以及 SCC 发展中具有关键作用。因为 Treg 在肿瘤部位的积累部分是由于通过 CCR5 和 CCR5 相关趋化因子的选择性募集,我们研究了 CCR5 在 SCC 发展中的作用。我们的研究结果表明,与野生型小鼠相比,CCR5 缺陷小鼠 (CCR5KO) 可有效控制乳头状瘤的发病率。对野生型 (WT) 和 CCR5KO 小鼠肿瘤病变的分析表明,缺乏 CCR5 会导致 Treg 频率显着降低,并增加进入肿瘤的 CD4 T 细胞。此外,自然发生的 Tregs CD4+CD25+CCR5+ 的过继转移,CD4+CD25-CCR5+ 或 CD8+CCR5+ 常规 T 细胞对 CCR5KO 小鼠导致乳头状瘤发病率增加。有趣的是,将 WT CD4+CD25+CCR5+ 细胞过继转移到 CCR5KO 小鼠会诱导更多未分化的 SCC 病变,其特征是巨噬细胞和树突细胞的浸润更多。在这项研究中,我们还证明了 Treg 向肿瘤微环境的迁移是由 CCR5 介导的,这些细胞通过抑制细胞毒性 CD8+ T 细胞等抗肿瘤细胞来促进肿瘤生长。我们的发现加强了 CCR5 抑制对癌症治疗的治疗潜力,并表明了一种有吸引力的 SCC 治疗方法。摩尔癌症治疗; 16(12); 2871-80。©2017 AACR。将 WT CD4+CD25+CCR5+ 细胞过继转移到 CCR5KO 小鼠会诱导更多未分化的 SCC 病变,其特征是巨噬细胞和树突细胞的浸润更多。在这项研究中,我们还证明了 Treg 向肿瘤微环境的迁移是由 CCR5 介导的,这些细胞通过抑制细胞毒性 CD8+ T 细胞等抗肿瘤细胞来促进肿瘤生长。我们的发现加强了 CCR5 抑制对癌症治疗的治疗潜力,并表明了一种有吸引力的 SCC 治疗方法。摩尔癌症治疗; 16(12); 2871-80。©2017 AACR。将 WT CD4+CD25+CCR5+ 细胞过继转移到 CCR5KO 小鼠会诱导更多未分化的 SCC 病变,其特征是巨噬细胞和树突细胞的浸润更多。在这项研究中,我们还证明了 Treg 向肿瘤微环境的迁移是由 CCR5 介导的,这些细胞通过抑制细胞毒性 CD8+ T 细胞等抗肿瘤细胞来促进肿瘤生长。我们的发现加强了 CCR5 抑制对癌症治疗的治疗潜力,并表明了一种有吸引力的 SCC 治疗方法。摩尔癌症治疗; 16(12); 2871-80。©2017 AACR。这些细胞通过抑制细胞毒性 CD8+ T 细胞等抗肿瘤细胞来促进肿瘤生长。我们的发现加强了 CCR5 抑制对癌症治疗的治疗潜力,并表明了一种有吸引力的 SCC 治疗方法。摩尔癌症治疗; 16(12); 2871-80。©2017 AACR。这些细胞通过抑制细胞毒性 CD8+ T 细胞等抗肿瘤细胞来促进肿瘤生长。我们的发现加强了 CCR5 抑制对癌症治疗的治疗潜力,并表明了一种有吸引力的 SCC 治疗方法。摩尔癌症治疗; 16(12); 2871-80。©2017 AACR。
更新日期:2017-09-13
down
wechat
bug