We have examined the effects of chemotherapeutic drugs on tumor growth
and metastasis of human alpha-fetoprotein-producing gastric carcinoma
(AFPGC) xenografts growing in nude mice. These xenografts consisted o
f 3 hepatoid adenocarcinomas and 2 non-hepatoid, poorly differentiated
adenocarcinomas. Mitomycin C and cisplatin inhibited the tumor growth
and liver metastasis of hepatoid adenocarcinomas in nude mice. 5-fluo
rouracil also inhibited the growth of hepatoid adenocarcinomas but did
not exhibit a significant antimetastatic action. Doxorubicin was effe
ctive only against non-hepatoid adenocarcinomas. These results indicat
e that chemotherapeutic drugs for AFPGC should be used according to th
e subtype of the tumor.