Related Experiment Video

Updated: Feb 7, 2026

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
07:16

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples

Published on: March 14, 2014

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GRIN3A defines an immunosuppressive niche in advanced prostate cancer

Xinglin He1,2,3, Yaohua Hu2, Zhite Zhao3

  • 1Second Clinical Medical College, Shaanxi University of Chinese Medicine, Xi'an, 710000, Shaanxi, China.

Medical Oncology (Northwood, London, England)
|February 5, 2026
PubMed

Insights

Glutamate receptor GRIN3A is elevated in advanced prostate cancer, driving immune evasion and resistance to immunotherapy. Targeting GRIN3A may improve treatment outcomes for castration-resistant prostate cancer (CRPC).

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Castration-resistant prostate cancer (CRPC) poses challenges due to limited immunotherapy response.
  • Lack of predictive biomarkers and therapeutic targets hinders effective CRPC treatment.
  • Understanding tumor evolution and immune microenvironment is crucial for CRPC management.

Purpose of the Study:

  • To identify novel biomarkers and therapeutic targets in advanced prostate cancer.
  • To investigate the role of GRIN3A in CRPC progression and immune evasion.
  • To evaluate GRIN3A as a predictor of treatment response.

Main Methods:

  • Systematic integration of single-cell transcriptomic data across disease stages.
  • Multi-dimensional validation of identified molecular targets.
  • Experimental assessment of GRIN3A function in tumor microenvironment and treatment sensitivity.

Main Results:

  • GRIN3A expression is persistently elevated in prostate cancer, correlating with advanced stages and poor prognosis.
  • High GRIN3A expression in CRPC subpopulations is linked to immunoregulatory properties and an immunosuppressive microenvironment.
  • GRIN3A levels inversely correlate with T-cell infiltration and are partially mediated by TGF-β signaling.
  • GRIN3A expression predicts response to immune checkpoint blockade (ICB) and chemotherapy.

Conclusions:

  • GRIN3A serves as a potential biomarker for tumor heterogeneity and immunotherapy resistance in prostate cancer.
  • Targeting GRIN3A may offer a strategy to overcome immune evasion in advanced prostate cancer.
  • Further research into GRIN3A-targeting therapies is warranted for CRPC treatment.
Keywords:
GRIN3AImmune checkpoint blockadeProstate cancerTGF-β signalingTumor microenvironment

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