MYADM Activates RhoA-Mediated Ameboid Migration to Drive Metastasis

转移 罗亚 癌细胞 生物 失巢 细胞生物学 细胞迁移 癌症研究 癌症 细胞 信号转导 遗传学
作者
Yi-Ta Tsai,En-Ting Liu,Ming‐Hsin Yang,Chien‐Chang Kao,Sheue‐Fen Tzeng,Yu-Chi Chen,Pei‐Wen Hsiao,An‐Chieh Feng,Grace S. Shieh,Mong‐Hsun Tsai,Shau‐Kwaun Chen,Yi‐Lin Chiu,Chin Li Chen,Sheng‐Tang Wu,En Meng,Wen‐Chiuan Tsai,Tai‐Kuang Chao,Guang-Huan Sun,Sun‐Yran Chang,Mien‐Chie Hung
出处
期刊:Cancer Research [American Association for Cancer Research]
卷期号:85 (21): 4099-4121
标识
DOI:10.1158/0008-5472.can-25-0006
摘要

Metastasis, the leading cause of cancer-related mortality, remains the most critical challenge in cancer treatment. Cancer cells can adopt amoeboid migration to facilitate metastasis, highlighting the need to elucidate the molecular pathways regulating the amoeboid migration phenotype. In this study, we identified that MYADM, a transmembrane protein expressed during myeloid cell maturation, enabled cancer cells to acquire amoeboid migration plasticity, promoting metastasis and contributing to poor patient outcomes. Cancer cells exploited MYADM-mediated adhesion and migration to mimic leukocyte trafficking. By interacting with RhoGDI, MYADM activated RhoA-mediated leukocyte trafficking-associated gene enrichment, invasiveness, membrane blebbing, and anoikis resistance. MYADM modulated chromatin accessibility-regulatory genes, influencing intermediate filament cytoskeleton dynamics of cancer cells and tumor tissues. MYADM loss in cancer cells triggered chromatin accessibility-driven death signaling, blocking metastasis, which was not observed in monocytes. These findings position MYADM as a potential therapeutic target to disrupt metastasis, offering avenues for clinical intervention. SIGNIFICANCE: Targeting MYADM, which interacts with RhoGDI to induce RhoA-driven amoeboid migration plasticity and chromatin dynamics, is a strategy to block metastatic progression that selectively impairs cancer cell survival.
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