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Updated: Jul 3, 2026

Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material
11:12

Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material

Published on: August 1, 2018

Aromatase expression in women's cancers.

Serdar E Bulun1, Evan R Simpson

  • 1Department of Obstetric and Gynecology, Northwestern University, Chicago, IL 60611, USA. sbulun@northwestern.edu

Advances in Experimental Medicine and Biology
|July 22, 2008
PubMed
Summary

Aromatase inhibitors are effective for breast cancer. Research shows inflammatory substances like PGE2 may drive local estrogen production in breast, endometrial, and ovarian cancers, promoting tumor growth.

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Area of Science:

  • Endocrinology
  • Oncology
  • Molecular Biology

Background:

  • Estrogen fuels the growth of breast, endometrial, and ovarian cancers.
  • Aromatase, the enzyme for estrogen synthesis, is a target for cancer therapy.
  • The role of aromatase inhibitors in endometrial and ovarian cancers requires further investigation.

Purpose of the Study:

  • To investigate the regulation of aromatase expression in women's cancers.
  • To understand the role of local estrogen production in tumor growth.
  • To explore the impact of inflammatory substances on aromatase activity.

Main Methods:

  • Analysis of aromatase gene regulation by tissue-specific promoters.
  • Investigation of signaling pathways (cAMP-PKA, PKC) controlling aromatase expression.
  • Study of the effects of prostaglandin E2 (PGE2) on aromatase induction.

Main Results:

  • Aromatase is overexpressed in breast, endometrial, and ovarian cancers, producing local estrogen.
  • Promoter 1.3/II is primarily responsible for increased aromatase expression in these cancers.
  • Prostaglandin E2 (PGE2) stimulates aromatase expression via cAMP-PKA and PKC pathways, particularly in breast cancer.

Conclusions:

  • Local estrogen production, driven by aromatase, contributes to the pathogenesis of women's cancers.
  • Inflammatory mediators like PGE2 play a significant role in upregulating aromatase and promoting tumor growth.
  • Targeting aromatase and inflammatory pathways may offer novel therapeutic strategies for these cancers.

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