[Antitumor activity of platinum analogs against human ovarian tumors heterotransplanted into nude mice].

The chemotherapeutic effects of CDDP, CBDCA and CHIP on human ovarian cancers heterotransplanted into nude mice (mucinous cystadenocarcinoma OVA-1, poorly differentiated adenocarcinoma OVA-2, endometrioid adenocarcinoma OVA-3, serous cystadenocarcinoma OVA-4, and three yolk sac tumors YST-1, YST-2, YST-3) were examined. OVA-1 did not respond to CDDP, although it responded well to CBDCA and CHIP. OVA-2 responded well to all these platinum analogs. OVA-3 responded well to CDDP, but did not respond to CBDCA or CHIP. OVA-4 responded well to CDDP and CBDCA, but did not respond to CHIP. Tumors YST-2 and YST-3 exhibited broadly comparable sensitivity to CDDP and the two other analogs, and YST-1 was substantially more sensitive to CDDP than to CBDCA or CHIP. The results indicated the necessity of selection of platinum analogs according to the histological types of tumor for the effective treatment of ovarian cancer.