Bis-sulfide bioconjugates for glutathione triggered tumor responsive drug release

Abstract

The reaction of bis-sulfone conjugation reagents with disulfide bonds allows the site-specific modification of various peptides and proteins. Herein, we present the intracellular disintegration of bis-sulfide containing somatostatin bioconjugates under controlled, tumor-relevant glutathione levels. GSH responsive release is demonstrated, which offers high potential for designing tumor responsive therapeutics.