since melatonin , the major hormone of the pineal gland , has been shown to inhibit the growth of mammary tumors in animal models of human breast cancer , we examined the hypothesis that this indoleamine has the potential to inhibit breast cancer growth by directly inhibiting cell proliferation as exemplified by the growth of the estrogen-responsive human breast cancer cell line mcf-7 in culture .
C0596290
cell proliferation
C0018270
growth