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与瘤相关的巨细胞通过CCL20-CCR6轴促进膀癌转移
Ryunosuke Nakagawa1, Kouji Izumi1, Kaoru Hiratsuka1
1Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
概括
瘤相关巨细胞 (TAMs) 通过CCL20和CXCL1信号传递促进膀癌 (BC) 细胞入侵. 向BC细胞上的CC化学因受体6 (CCR6) 可以减少转移,提供一种潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 瘤相关巨细胞 (TAMs) 是瘤微环境中的关键参与者.
- 膀癌 (BC) 细胞和TAMs之间的相互作用影响癌症的进展和转移.
- 了解这些相互作用对于开发新的治疗策略至关重要.
研究的目的:
- 阐明膀癌细胞与M2类TAM之间相互作用的分子机制.
- 为了研究C-C动机化学联体 (CCL) 20和CXCL1在BC细胞迁移,入侵和转移中的作用.
- 评估在BC中准CC化学因受体6 (CCR6) 的治疗潜力.
主要方法:
- 同培养BC细胞系 (UMUC3,T24) 与与THP-1细胞差异化的M2类TAM.
- 对基因表达 (CD68,CD206,CCR6) 和蛋白质分泌 (CCL20,CXCL1) 的分析.
- 在体外和体内测试以评估细胞迁移,入侵和转移;人类BC组织上的免疫组织化学.
主要成果:
- 类似M2的TAM增强了BC细胞的迁移和入侵,与BC细胞上增加的CCL20分泌和CCR6表达有关.
- CCL20通过MEK/ERK通路促进了BC细胞迁移和入侵.
- BC细胞的CXCL1分泌有助于M2类TAM两极分化,并增强了BC细胞的入侵.
- 人类BC组织中的高CCR6表达与预后不佳相关,CCR6抑制减少了转移.
结论:
- 分别由TAMs和BC细胞分泌的CCL20和CXCL1是它们相互作用的关键调解者,促进BC进展.
- CCL20/CCR6轴在BC细胞转移中发挥着重要作用.
- 向CCR6为抑制膀癌转移提供了一个有希望的治疗途径.
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