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<p>Cells at the invasive front of oral squamous cell carcinoma (OSCC) occupy a partial epithelial-to-mesenchymal transition (p-EMT) state that drives invasion and therapeutic resistance yet remains poorly understood. To define the regulators of this metastable state, we developed an isogenic OSCC model that captures stable epithelial and p-EMT phenotypes and used it to perform a genome-wide CRISPR invasion screen. This unbiased strategy identified 17 modulators of invasion, most previously unrecognized in cancer and virtually unexplored in OSCC, that converge on cytoskeletal remodeling, adhesion, and epigenetic regulation. Within this network, EDIL3 emerged as a central driver of EMT, invasion, and chemoresistance in head and neck cancer, extending prior reports in other tumor types. Importantly, the invasion signature derived from our screen localized with striking specificity to the tumor invasive front of human OSCC, providing direct clinical validation. Together, these findings reveal a novel, targetable network of transient invasion drivers defining the OSCC tumor front.</p>

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Newly identified invasion drivers define the tumor front in oral squamous cell carcinoma

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月20日

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  • Guillermo Flores,
  • Slyn Uaroon,
  • Juan A. R. Garay,
  • Marion Vanneste,
  • Jesse D. Riordan,
  • Adam J. Dupuy,
  • Kristina W. Thiel,
  • Kaitriana E. Colling,
  • Christopher S. Stipp,
  • Li-Chun Lin,
  • Bailey Hollis,
  • Mariah R. Leidinger,
  • Stephanie J. T. Chen,
  • Lillian M. Graham,
  • Kevin L. Knudtson,
  • Michael S. Chimenti,
  • Jason A. Ratcliff,
  • Zain Mehdi,
  • Madison C. McElliott,
  • Eric R. Anderson,
  • Michael D. Henry,
  • Molly E. Heft Neal,
  • J. Chad Brenner,
  • Marisa R. Buchakjian

摘要

Cells at the invasive front of oral squamous cell carcinoma (OSCC) occupy a partial epithelial-to-mesenchymal transition (p-EMT) state that drives invasion and therapeutic resistance yet remains poorly understood. To define the regulators of this metastable state, we developed an isogenic OSCC model that captures stable epithelial and p-EMT phenotypes and used it to perform a genome-wide CRISPR invasion screen. This unbiased strategy identified 17 modulators of invasion, most previously unrecognized in cancer and virtually unexplored in OSCC, that converge on cytoskeletal remodeling, adhesion, and epigenetic regulation. Within this network, EDIL3 emerged as a central driver of EMT, invasion, and chemoresistance in head and neck cancer, extending prior reports in other tumor types. Importantly, the invasion signature derived from our screen localized with striking specificity to the tumor invasive front of human OSCC, providing direct clinical validation. Together, these findings reveal a novel, targetable network of transient invasion drivers defining the OSCC tumor front.