c-FOS drives reversible basal to squamous cell carcinoma transition.
c-FOS drives reversible basal to squamous cell carcinoma transition.
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DOI:
10.1016/j.celrep.2021.109774
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发表时间:
2021-10-05
期刊:
影响因子:
8.8
通讯作者:
Oro AE
中科院分区:
文献类型:
--
作者:
Kuonen F;Li NY;Haensel D;Patel T;Gaddam S;Yerly L;Rieger K;Aasi S;Oro AE
While squamous transdifferentiation within subpopulations of adenocarcinomas represents an important drug resistance problem, its underlying mechanism remains poorly understood. Here, using surface markers of resistant basal cell carcinomas (BCCs) and patient single-cell and bulk transcriptomic data, we uncover the dynamic roadmap of basal to squamous cell carcinoma transition (BST). Experimentally induced BST identifies activator protein 1 (AP-1) family members in regulating tumor plasticity, and we show that c-FOS plays a central role in BST by regulating the accessibility of distinct AP-1 regulatory elements. Remarkably, despite prominent changes in cell morphology and BST marker expression, we show using inducible model systems that c-FOS-mediated BST demonstrates reversibility. Blocking EGFR pathway activation after c-FOS induction partially reverts BST in vitro and prevents BST features in both mouse models and human tumors. Thus, by identifying the molecular basis of BST, our work reveals a therapeutic opportunity targeting plasticity as a mechanism of tumor resistance. Kuonen et al. use a multi-omics approach to decipher the molecular mechanisms of skin cancer plasticity. They demonstrate that c-FOS drives basal to squamous cell carcinoma transition (BST) through AP-1-related non-genetic modifications. Based on BST reversibility, they identify targetable candidates, offering a therapeutic opportunity to prevent tumor plasticity and improve patient outcomes.
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