乳腺癌IGFBP6的预后价值:关注葡萄糖代谢
Hang Lu1,2, Xin Yu1, Zhiliang Xu1
1Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
Technology in cancer research & treatment
|September 14, 2024
概括
高IGFBP6水平与更好的乳腺癌存活率相关,特别是在没有2型糖尿病的患者中. IGFBP6对瘤微环境和葡萄糖代谢产生影响,具有作为预后标记物的潜力.
科学领域:
- 在瘤学瘤学.
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 胰岛素样生长因子结合蛋白6 (IGFBP6) 抑制胰岛素样生长因子II (IGF-II),该因子与恶性瘤生长有关.
- 2型糖尿病 (T2D) 涉及可能由IGF相关途径调节的葡萄糖代谢障碍.
- 在乳腺癌 (BC) 中IGFBP6的预后和机制作用,特别是关于T2D,需要进一步阐明.
研究的目的:
- 用生物信息学和临床样本研究IGFBP6在乳腺癌 (BC) 代谢和预后中的机制.
- 评估IGFBP6在BC患者的预后效果,有或没有T2D.
- 探索IGFBP6与信号通路,瘤微环境,新陈代谢,基因突变和BC中的药物敏感性的关联.
主要方法:
- 对TCGA数据库对IGFBP1-6表达和与乳腺癌总生存时间 (OS) 的相关性进行生物信息学分析.
- 从有和没有T2D的患者的临床BC样本中分析IGFBP6表达.
- 调查IGFBP6参与PI3K-Akt,TGF-β信号传递,瘤微环境,葡萄糖代谢,基因突变 (TP53,PIK3CA,CDH1,MAP3K1) 和药物敏感性.
主要成果:
- 在乳腺癌患者中,IGFBP1-6水平与OS正相关.
- 在雌激素受体 (ER) 阳性BC中,IGFBP6被上调,并与ER+/孕激素受体 (PR) +状态相关.
- BC组织显示IGFBP6的表达减少,T2D患者的水平较低;高IGFBP6与对多塞塔克塞尔,帕克利塔克塞尔和格姆奇塔宾的敏感性增加相关.
结论:
- 高IGFBP6表达是BC良好的预后的独立预后因素,特别是在非T2D患者中.
- IGFBP6影响BC瘤微环境,并通过葡萄糖代谢途径抑制癌细胞能量代谢.
- IGFBP6具有作为乳腺癌新型预后标志物的潜力.
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