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Updated: May 6, 2026

An Orthotopic Model of Serous Ovarian Cancer in Immunocompetent Mice for in vivo Tumor Imaging and Monitoring of Tumor Immune Responses
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An Orthotopic Model of Serous Ovarian Cancer in Immunocompetent Mice for in vivo Tumor Imaging and Monitoring of Tumor Immune Responses

Published on: November 28, 2010

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Mapping spatial organization and genetic cell-state regulators to target immune evasion in ovarian cancer

Christine Yiwen Yeh1,2,3, Karmen Aguirre1,4,5, Olivia Laveroni1

  • 1Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.

Nature Immunology
|August 23, 2024
PubMed

Insights

Understanding immune evasion in ovarian cancer is key to improving immunotherapies. This study reveals a malignant cell state linked to genetics that predicts immune cell infiltration and response, offering new therapeutic targets.

Area of Science:

  • Oncology
  • Immunology
  • Genomics

Background:

  • Immune evasion mechanisms in cancer limit immunotherapy efficacy.
  • High-grade serous tubo-ovarian cancer (HGSOC) presents complex challenges for treatment.

Purpose of the Study:

  • To delineate immune evasion drivers in HGSOC using spatial and perturbational transcriptomics.
  • To identify malignant cell states associated with immune infiltration and treatment response.

Main Methods:

  • Spatial mapping of over 2.5 million cells across 130 HGSOC tumors.
  • Perturb-seq screens to identify genetic drivers of malignant cell states.
  • Analysis of genetic variation, cell-state regulators, and spatial biology.

Main Results:

  • A specific malignant cell state in HGSOC was identified, correlating with tumor genetics.
  • This cell state predicts T cell and natural killer cell infiltration and response to immune checkpoint blockade.
  • Knockout of PTPN1 and ACTR8, along with PTPN1/PTPN2 inhibition, sensitized ovarian cancer cells to immune cell cytotoxicity.

Conclusions:

  • Genetic variations and cell-state regulators are linked to immune evasion in HGSOC.
  • Targeting identified genetic perturbations or PTPN1/PTPN2 can enhance immune cell-mediated cancer cell killing.
  • This research provides novel strategies for targeting immune evasion in ovarian cancer.

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