Breast Cancer Research and Treatment

, Volume 76, Issue 2, pp 103–109

Aromatase and Prostaglandin Inter-Relationships in Breast Adipose Tissue: Significance for Breast Cancer Development

Authors

  • Darshini Karuppu
    • Prince Henry's Institute of Medical Research
  • Alan Kalus
    • The Plastic and Aesthetic Surgery Centre
  • Evan R. Simpson
    • Prince Henry's Institute of Medical Research
  • Colin Clyne
    • Prince Henry's Institute of Medical Research
Article

DOI: 10.1023/A:1020531329686

Cite this article as:
Karuppu, D., Kalus, A., Simpson, E.R. et al. Breast Cancer Res Treat (2002) 76: 103. doi:10.1023/A:1020531329686
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Abstract

The role of prostaglandins in the development of breast cancer is a topic of growing interest. Stimulation of aromatase expression within the breast has been proposed as a mechanism whereby prostaglandins could influence breast cancer growth. In the present study, we show that PGE2 is a powerful stimulator of aromatase expression in human breast adipose stromal cells. Moreover, TNFα, which also stimulates aromatase expression in breast adipose stromal cells, acts to increase the secretion of PGE2 by these cells, as well as the expression of COX 2 and PGE synthase, but not that of COX 1. On the other hand, class I cytokines had no effect, either by themselves or in the presence of estradiol. These factors had little influence on secretion of 15-deoxy-Δ12,14-PGJ2, which is inhibitory of aromatase expression by breast adipose stromal cells. These results further substantiate an important role for PGE2 to stimulate estrogen biosynthesis within the local environment of the breast.

aromatasebreast cancerbreast mesenchymal cellsprostaglandin E2TNFα
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© Kluwer Academic Publishers 2002