Enhanced cytotoxicity caused by increased DNA strand breakage resulting from synergistic potentiation of bleomycin with Bacillus thuringiensis subsp. israelensis delta-endotoxin
Yokoyama, Y.; Kohda, K.
Anticancer Research 14(3a): 837-840
1994
ISSN/ISBN: 0250-7005 PMID: 7521154 Document Number: 423151
We previously reported that a 25 kDa Bacillus thuringiensis subsp. israelensis (BTI) delta-endotoxin potentiates the cytotoxicity of bleomycin (BLM) in cultured cells. In order to clarify the mechanism involved, we examined the induction of DNA strand breakage by BLM in the presence of BTI toxin. Results showed that the increase in strand breakage resulted in enhanced cytotoxicity through the synergistic potentiation of BLM with BTI toxin.