title: [Estrogens and breast cancer: from action mechanisms to clinical applications].
abstract: The role of estrogens as promoters of breast carcinogenesis has been well established while their action in tumor invasion appears more complex. Breast cancer cells without estrogen receptor (ER) are generally less differentiated and more aggressive than those containing function ER. Moreover the reexpression of ER by transfection in ER-negative cell lines inhibit their metastatic potential. These results suggest a protective role of ER in the metastatic progression of breast cancers. Studies of the underlying mechanisms of this effect may open new therapeutical strategies.
authors.affiliation: Université de Montpellier 1, Institut National de la Santé et de la Recherche Médicale.
authors.forename: M
authors.initials: M
authors.lastname: Garcia
authors.forename: H
authors.initials: H
authors.lastname: Rochefort
mesh_terms: D001943:Breast Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D002402:Cathepsin D / Q000032:analysis; D004967:Estrogens / Q000032:analysis / Q000378:metabolism*; D005260:Female; D006801:Humans; D009362:Neoplasm Metastasis; D009363:Neoplasm Proteins / Q000032:analysis; D011379:Prognosis; D011506:Proteins; D011960:Receptors, Estrogen / Q000032:analysis / Q000235:genetics; D014162:Transfection; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins
chemical_list: D004967:Estrogens; D009363:Neoplasm Proteins; D011506:Proteins; D011960:Receptors, Estrogen; C051838:TFF1 protein, human; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins; D002402:Cathepsin D