title: Oestrogen receptors and response to cytotoxic chemotherapy in advanced breast cancer.
abstract: Of 54 patients with advanced breast cancer, 21/37 (57%) with oestrogen receptor-positive (ER+) tumours and 11/17 (65%) with oestrogen receptor-negative (ER-) tumours responded to cytotoxic chemotherapy. These data and a survey of the literature indicate that oestrogen receptor status is not a determinant of response to chemotherapy. However, ER+ tumours seem to grow more slowly than ER- ones and the response to chemotherapy tends to be longer in ER+ patients.
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000032:analysis / Q000188:drug therapy* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D011960:Receptors, Estrogen / Q000032:analysis*
chemical_list: D000970:Antineoplastic Agents; D011960:Receptors, Estrogen