皮肤基因突变通过ERK/MAPK通路促进表皮细胞-介质细胞过渡和晚期黑色素瘤
Wenqiong Ma1, Zexiu Wu1, Mazaher Maghsoudloo2,3
1Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
PloS one
|July 11, 2023
概括
皮肤基因 (DMKN) 在黑色素瘤中驱动上皮层-介质细胞过渡 (EMT),与生存率差相关. 针对DMKN及其突变可能通过调节EMT信号通路提供新的个性化黑色素瘤疗法.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 恶性黑色素瘤 (MM) 的进展通常是由上皮细胞-介质细胞过渡 (EMT) 驱动的.
- 识别黑色素瘤中EMT的新型分子触发因素对于治疗开发至关重要.
研究的目的:
- 调查皮肤基因 (DMKN) 作为黑色素瘤中EMT的潜在驱动因素的作用.
- 探索DMKN作为黑色素瘤的治疗点.
主要方法:
- 在转基因模型中进行全基因组遗传查.
- 在MM癌细胞中的体外淘汰实验.
- 对人类MM数据集和晚期黑色素瘤样本的分析.
- 整体外基因组测序以识别DMKN突变.
- 在ERK-MAPK信号通路内模拟DMKN突变.
主要成果:
- 人类MM中DMKN表达升高,与生存率较差有关,特别是在BRAF突变病例中.
- 通过ERK/MAPK和STAT3通路抑制MM细胞的增殖,迁移,入侵和亡.
- 通过改变皮质动蛋白和上皮质/介质细胞标记物表达,DMKN扰乱了EMT.
- 新的功能丧失DMKN突变 (p.E69D,p.V91A) 在ERK-MAPK信号中被识别和建模.
结论:
- 在黑色素瘤中,DMKN在促进类似EMT的表型方面发挥着重要作用.
- DMKN及其已识别的突变代表了个性化黑色素瘤治疗的潜在目标.
- 向DMKN可能为治疗晚期黑色素瘤提供了一种新的策略.
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