Abstract
The migration potential through a basement membrane in an endometrial cancer cell line, such as Ishikawa, HEC-1-A or HHUA cell, in terms of strength, was enhanced by estradiol, but not modified by progesterone, medroxyprogesterone acetate (MPA), danazol or tamoxifen alone, by which estradiol-enhanced migration potential was inhibited. The order of the level of estrogen receptor was Ishikawa > HEC-1-A > HHUA cells. Therefore, it is suggested that the invasiveness of endometrial cancer cells might be activated by estradiol via estrogen receptors, but inactivated by progesterone, MPA, danazol or tamoxifen as an antiestrogen action, and that endometrial cancer cells could become invasive in the estrogen-predominant milieu, and the antiestrogenic agents could protect it.
MeSH terms
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Antineoplastic Agents, Hormonal / pharmacology
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Basement Membrane / drug effects
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Basement Membrane / physiology
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Cell Movement / drug effects
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Danazol / pharmacology
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Endometrial Neoplasms / drug therapy
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Endometrial Neoplasms / pathology*
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Endometrial Neoplasms / ultrastructure
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Estradiol / pharmacology*
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Estrogen Antagonists / pharmacology
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Female
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Humans
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Medroxyprogesterone Acetate / pharmacology
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Neoplasm Invasiveness
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Ovarian Neoplasms / drug therapy
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Ovarian Neoplasms / pathology*
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Ovarian Neoplasms / ultrastructure
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Progesterone / pharmacology
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Receptors, Estrogen / metabolism
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Tamoxifen / pharmacology
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Tumor Cells, Cultured / drug effects
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Uterine Cervical Neoplasms / drug therapy
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Uterine Cervical Neoplasms / pathology*
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Uterine Cervical Neoplasms / ultrastructure
Substances
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Antineoplastic Agents, Hormonal
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Estrogen Antagonists
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Receptors, Estrogen
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Tamoxifen
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Progesterone
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Estradiol
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Medroxyprogesterone Acetate
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Danazol