Tumor NOS2 and COX2 Spatial Juxtaposition with CD8+ T Cells Promote Metastatic and Cancer Stem Cell Niches that Lead to Poor Outcome in ER- Breast Cancer

Cancer Res Commun. 2024 Oct 1;4(10):2766-2782. doi: 10.1158/2767-9764.CRC-24-0235.

Abstract

This work identifies CD8-NOS2+COX2+ and CD8-NOS2-COX2+ unique cellular neighborhoods that drive the tumor immune spatial architecture of CD8+ T cells predictive of clinical outcome and can be targeted with clinically available NOS inhibitors and NSAIDs.

MeSH terms

  • Animals
  • Breast Neoplasms* / immunology
  • Breast Neoplasms* / pathology
  • CD8-Positive T-Lymphocytes* / immunology
  • Cyclooxygenase 2* / metabolism
  • Female
  • Humans
  • Mice
  • Neoplasm Metastasis
  • Neoplastic Stem Cells* / drug effects
  • Neoplastic Stem Cells* / immunology
  • Neoplastic Stem Cells* / pathology
  • Nitric Oxide Synthase Type II* / metabolism
  • Receptors, Estrogen / metabolism
  • Stem Cell Niche
  • Tumor Microenvironment / immunology

Substances

  • Cyclooxygenase 2
  • Nitric Oxide Synthase Type II
  • NOS2 protein, human
  • Receptors, Estrogen
  • PTGS2 protein, human