CDYL loss promotes cervical cancer aggression by increasing PD-L1 expression via the suppression of IRF2BP2

Ying Cui1, Yuxi Zhao2, Guihua Shen1

  • 1Department of Obstetrics and Gynecology, National Center of Gerontology/Beijing Hospital, Beijing 100730, PR China.

PubMed
Abstract

Insights

CDYL acts as a tumor suppressor in cervical cancer, inhibiting cancer growth and improving immune response. Its downregulation predicts poor prognosis, suggesting CDYL as a potential biomarker for immunotherapy.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Recurrent or metastatic cervical cancer has poor prognosis (17% 5-year survival) due to limited therapies.
  • CDYL's role in cervical cancer is unexplored, despite its context-dependent function in other cancers.

Purpose of the Study:

  • Investigate CDYL's role in cervical cancer development.
  • Determine CDYL's impact on malignant phenotypes and immune microenvironment.
  • Evaluate CDYL as a predictive biomarker for immunotherapy response.

Main Methods:

  • Analyzed CDYL expression in cervical cancer tissues and cell lines.
  • Performed gain-of-function experiments to assess CDYL/IRF2BP2/PD-L1 axis effects.
  • Validated findings using a mouse model of cervical cancer.

Main Results:

  • CDYL is downregulated in cervical cancer, correlating with poor prognosis.
  • CDYL overexpression suppressed tumor growth, invasion, and reversed immunosuppression by reducing PD-L1.
  • CDYL suppresses PD-L1 via transcriptional inhibition of IRF2BP2.

Conclusions:

  • CDYL is crucial in cervical carcinogenesis and immunotherapy sensitivity.
  • CDYL shows potential as a novel predictive biomarker for cervical cancer immunotherapy response.

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