Targeting Glutamine Metabolism Transporter SLC25A22 Enhances CD8+ T-Cell Function and Anti-PD-1 Therapy Efficacy in Cervical Squamous Cell Carcinoma: Integrated Metabolomics, Transcriptomics and T-Cell-Incorporated Tumor Organoid Studies.

ABSTRACT: Cervical squamous cell carcinoma(CSCC) represents formidable challenge in clinical oncology, exacerbated by poor prognosis and resistance to current treatments, including anti-PD-1 therapy, highlighting the urgent need for alternative therapeuties. Metabolic characteristics have emerged as potential drivers of treatment resistance and immune evasion. Herein, 1) based on metabolomic and transcriptomic analyses of 44 CSCC and 18 normal tissues, glutamine-enriched and immunosuppressive microenvironment is identified in CSCC. 2) Integrative metabolomic and transcriptomic analyses revealed the glutamine metabolism transporter SLC25A22 as a key mediator in high glutamine metabolism, immune checkpoint activation and CD8+T-cell cytotoxicity. 3) Immunohistochemistry(IHC), multiplex IHC, and flow cy

SUBMITTER: Ren T 

PROVIDER: S-EPMC12412565 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature