与癌症相关的纤维细胞通过外体环TBPL1介导的细胞间通信促进乳腺癌的进展
Fangzhou Ye1, Yiran Liang1, Yajie Wang1
1Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, 250012, Jinan, Shandong, P. R. China.
Cell death & disease
|July 26, 2023
概括
与癌症相关的纤维细胞 (CAF) 释放含有circTBPL1的外体,促进乳腺癌的进展. 这种外体环TBPL1通过调节miR-653-5p/TPBG通路来驱动瘤生长,提供了潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 乳腺癌是全球女性的主要恶性瘤.
- 癌症相关纤维细胞 (CAFs) 通过外体介导通信影响瘤的进展.
- 来自CAF的外体循环RNAs (circRNAs) 在乳腺癌中的特定作用仍然不清楚.
研究的目的:
- 在乳腺癌进展中研究CAFs外体circRNAs的机制.
- 确定涉及的特定circRNA及其功能作用.
- 探索乳腺癌的潜在治疗点.
主要方法:
- 高通量测序用于CAF和正常纤维细胞 (NFs) 中的外体环RNA概况.
- 在体外试验测试以评估外体环TBPL1对乳腺癌细胞增殖,迁移和入侵的影响.
- 在体内异种移植模型,以确认瘤促进能力.
- 预测和验证MiRNA标 (miR-653-5p) 和下游基因分析 (TPBG).
主要成果:
- 与NF相比,在CAF外基因组中发现了上调的circTBPL1表达.
- 来自CAF的外体环TBPL1促进了乳腺癌细胞的增殖,迁移和入侵.
- 在CAF中抑制circTBPL1减少了它们的促进瘤的效果.
- circTBPL1针对miR-653-5p,并保护TPBG免受miR-653-5p介导的降解.
- 外体环TBPL1在异种移植模型中加速了瘤进展.
结论:
- 来自CAFs的外体环TBPL1通过miR-653-5p/TPBG途径促进乳腺癌的进展.
- 外体环TBPL1代表了乳腺癌的潜在生物标志物和治疗标.
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