迪萨德林/MMP9轴修改了细胞外基质,以加速结直肠癌的进展
Choong-Jae Lee1, Tae-Young Jang1, So-El Jeon1
1School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
Nature communications
|November 29, 2024
概括
迪萨德林向MMP9,重塑瘤微环境并促进结直肠癌 (CRC) 的进展. 抑制这一轴可能为CRC提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 生物化学 生物化学
背景情况:
- 瘤微环境 (TME) 显著影响结直肠癌 (CRC) 的进展和转移.
- 细胞外矩阵 (ECM) 修改,包括组件变化,降解和刚性,在瘤发育中至关重要.
研究的目的:
- 调查膜糖蛋白dysadherin在结直肠癌进展中的作用.
- 阐明dysadherin影响瘤微环境和ECM重塑的机制.
主要方法:
- 在人类CRC细胞,患者样本和小鼠模型中研究了dysadherin/matrix metalloprotease 9 (MMP9) 轴.
- 在一个人性化的小鼠模型中利用了dysadherin淘汰和MMP9过度表达模型.
- 评估了对癌细胞侵入性,ECM蛋白解活性,癌症相关纤维细胞激活和TME组成的影响.
主要成果:
- 迪萨德林直接针对MMP9,启动ECM重塑并增强CRC进展.
- 抗素/MMP9轴促进CRC细胞的侵入性,并激活与癌症相关的纤维细胞.
- 通过dysadherin淘汰破坏这个轴,可以减少免疫抑制和益血管性TME,这种效应被MMP9过度表达逆转.
结论:
- 迪萨德林通过通过迪萨德林/MMP9轴重塑TME来驱动CRC进展.
- 向dysadherin通过调节TME,为结直肠癌提供了一个潜在的治疗策略.
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