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TGFβ1和RGD协同调节SMAD2/3介导的前列腺癌细胞在生物正向构建的水凝中的瘤效应

Mugdha Pol¹, Hanyuan Gao², Joseph M Fox^2,3

¹Department of Biological Sciences, University of Delaware, Newark, Delaware 19716, United States.

ACS biomaterials science & engineering

|April 11, 2025

概括

这项研究表明,将转化生长因子β1 (TGFβ1) 与水凝中的RGD结合起来,可以促进前列腺癌细胞转移. 这种组合驱动了细胞的攻击性行为和瘤的进展.

科学领域:

生物材料科学生物材料科学
癌症生物学癌症生物学
细胞信号传输细胞信号传输

背景情况:

前列腺癌转移是一个复杂的过程,涉及细胞变化和与微环境的相互作用.
了解驱动转移的分子机制对于开发有效的治疗策略至关重要.

研究的目的:

在3D水凝模型中研究转化生长因子β1 (TGFβ1) 信号和整合素结合在复制前列腺癌细胞转移中的作用.
探索TGFβ1和RGD对DU145前列腺癌细胞行为和表型的合作作用.

主要方法:

DU145前列腺癌细胞在基于酸的蛋白酶可降解的水凝中培养,并与RGD功能化.
细胞被TGFβ1处理,并分析了形态变化,SMAD2/3核定位,基因表达和上皮细胞转移到介质细胞 (EMT).
使用TGFβ受体抑制剂 (SB-431542) 来评估TGFβ1信号传递的作用.

主要成果:

与RGD结合的水凝与TGFβ1结合,诱导了显著的形态变化和DU145细胞中相互连接的细胞网络的形成.
TGFβ1促进了SMAD2/3的核转位,对目标基因进行了上调,并诱导了EMT,其特点是表皮标记物的损失和中细胞标记物的增加.
抑制TGFβRI/ALK5减弱了TGFβ1诱导的影响,包括形态变化和EMT,并恢复了上皮标记物的表达.

结论:

整合素结合RGD和TGFβ1信号合作驱动前列腺癌细胞的攻击性,并在3D微环境中促进瘤的进展.
开发的水凝模型有效地总结了前列腺癌转移的关键方面,为进一步研究提供了一个平台.

关键词:

在RGD中,RGD是RGD.在TGFβ1中.表皮细胞到介质细胞的过渡.这种水凝是水凝.前列腺癌是前列腺癌.

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