1964 Volume 17 Issue 6 Pages 234-237
Showdomycin have been reported by Nishimura et al. 1), as a new antibiotic produced by Streptomyces showdoensis, n. sp. In their preliminary experiments, showdomycin was shown to exhibit an antitumor effect against Ehrlich ascites carcinoma both in vitro (using the so-called contact test technic) and in vivo.
In the present study, the antitumor activities of this new antibiotic were examined in detail.