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Updated: Jun 26, 2026

A Modified In vitro Invasion Assay to Determine the Potential Role of Hormones, Cytokines and/or Growth Factors in Mediating Cancer Cell Invasion
Published on: April 24, 2015
Estrogen activates invasiveness of endometrial cancel cells to the interstitium
1Department of Obstetrics and Gynecology, Gifu University School of Medicine, Gifu City, Japan.
Abstract:
Invasiveness of endometrial cancer cells such as Ishikawa, HEC-1-A and HHUA cells, to the interstitium was significantly enhanced by estradiol, while medroxyprogesterone acetate (MPA) significantly diminished the estradiol-enhanced invasive potential. All of these endometrial cancer cells possess estrogen receptors. It is suggested that invasiveness to the interstitium, and consequently infiltration to the uterine myometrium (which means local advance) are activated by estradiol via a mechanism related to the estrogen receptor, and that MPA as an antiestrogen agent partly inactivates the invasive ability.
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