cGAS/STING signaling pathway in gynecological malignancies: From molecular mechanisms to therapeutic values

Front Immunol. 2025 Jan 30:16:1525736. doi: 10.3389/fimmu.2025.1525736. eCollection 2025.

Abstract

Gynecological cancers, including cervical, ovarian, and endometrial malignancies, remain a significant global health burden, exacerbated by disparities in access to preventive measures such as HPV vaccination and routine screening. The cGAS/STING signaling pathway, a pivotal mechanism in innate immunity, detects cytosolic DNA from pathogens or cellular damage, triggering immune responses via type I interferons and inflammatory cytokines. This pathway's dual role in gynecological cancers, either promoting antitumor immunity or facilitating tumor immune evasion, makes it a compelling target for innovative therapies. The article outlines cGAS/STING's influence on tumor microenvironments, immune surveillance, and inflammation, with emphasis on molecular mechanisms driving cancer progression. It explores interactions between DNA damage response pathways and immune modulation, highlighting the impact of cGAS/STING activation or suppression in ovarian, cervical, and endometrial cancers. The therapeutic potential of STING agonists, PARP inhibitors, and targeted immunotherapies is reviewed, demonstrating how these approaches can boost immune responses, counteract chemotherapy resistance, and improve patient outcomes. The study also discusses strategies for leveraging cGAS/STING signaling to enhance the efficacy of immunotherapies and address tumor-mediated immune suppression, providing insights into future directions for personalized cancer treatments.

Keywords: DNA damage response; PARPi; STING; cGAS; cervical cancer; endometrial cancer; immunotherapy; ovarian cancer.

Publication types

  • Review

MeSH terms

  • Animals
  • Cyclic Guanosine Monophosphate-Adenosine Monophosphate Synthase
  • Female
  • Genital Neoplasms, Female* / drug therapy
  • Genital Neoplasms, Female* / etiology
  • Genital Neoplasms, Female* / immunology
  • Genital Neoplasms, Female* / metabolism
  • Genital Neoplasms, Female* / therapy
  • Humans
  • Immunity, Innate
  • Immunotherapy / methods
  • Membrane Proteins* / agonists
  • Membrane Proteins* / metabolism
  • Nucleotidyltransferases* / immunology
  • Nucleotidyltransferases* / metabolism
  • STING Protein
  • Signal Transduction* / drug effects
  • Signal Transduction* / immunology
  • Tumor Microenvironment / immunology

Substances

  • Nucleotidyltransferases
  • Membrane Proteins
  • STING1 protein, human
  • STING Protein
  • cGAS protein, human
  • Cyclic Guanosine Monophosphate-Adenosine Monophosphate Synthase