Related Experiment Video

Updated: Dec 20, 2025

Non-Invasive Ultrasound Assessment of Endometrial Cancer Progression in Pax8-Directed Deletion of the Tumor Suppressors Arid1a and Pten in Mice
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Non-Invasive Ultrasound Assessment of Endometrial Cancer Progression in Pax8-Directed Deletion of the Tumor Suppressors Arid1a and Pten in Mice

Published on: February 17, 2023

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Inactivation of Arid1a in the endometrium is associated with endometrioid tumorigenesis through transcriptional

Yohan Suryo Rahmanto1, Wenjing Shen2, Xu Shi3

  • 1Sidney Kimmel Comprehensive Cancer Center and Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA. suryoysr@gmail.com.

Nature Communications
|June 3, 2020
PubMed

Insights

Loss of ARID1A in endometrial cells disrupts tumor suppression, promoting cancer progression and spread. This study reveals how ARID1A inactivation accelerates uterine endometrioid carcinoma development.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Somatic inactivating mutations in ARID1A, a SWI/SNF chromatin remodeling gene, are common in endometrial cancers.
  • Understanding ARID1A's role in tumorigenesis is crucial for developing targeted therapies.

Purpose of the Study:

  • To investigate the mechanisms by which ARID1A mutations contribute to endometrial cancer development and progression.
  • To identify molecular pathways affected by ARID1A inactivation in endometrial malignancies.

Main Methods:

  • Generation of genetically engineered mouse models with conditional deletion of Arid1a and/or Pten in the endometrium.
  • Transcriptomic analysis of murine endometrial cancers and precursors.
  • Functional studies and systems biology approach using human endometrial epithelial cells (ARID1A wild-type and knockout).

Main Results:

  • Murine models recapitulated key features of human uterine endometrioid carcinomas.
  • Identified transcriptional networks regulated by Arid1a influencing endometrial tumor development.
  • Demonstrated that ARID1A deficiency leads to loss of TGF-β tumor suppressive function.
  • Showed ARID1A/TGF-β axis inactivation promotes migration and invasion in PTEN-deleted endometrial tumor cells.

Conclusions:

  • ARID1A inactivation accelerates endometrial tumor progression and dissemination.
  • Loss of ARID1A function impairs TGF-β tumor suppressive activity.
  • Findings provide molecular insights into endometrial cancer pathogenesis, highlighting the ARID1A/TGF-β axis.

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