Disclosed is a method of selectively inhibiting growth of non-target cells in a mixed population of target and non-target cells, the method comprising the steps of: (a) contacting the mixed population with a selective agent which comprises a carrier moiety linked by a scissile linkage to a toxic moiety; wherein the selective agent is able to enter non-target cells in which the scissile linkage is cleaved, releasing the toxic moiety to exert a toxic effect on the non-target cells causing inhibition of the growth of the non-target cells, whereas the selective agent is unable to enter target cells and/or the scissile linkage is not cleaved in target cells and/or toxic moiety, if released from the selective agent, does not exert a toxic effect on the target cell; and (b) culturing the cells in conditions which allow for growth of non-inhibited cells.
US8557538B2
申请人:——
公开号:US8557538B2
公开(公告)日:2013-10-15
Amino acids and peptides. III. Synthesis of stereoisomeric alanine containing peptide derivatives and their effects on germination of Bacillus thiaminolyticus spores. 2.
Stereoisomeric alanine containing peptides were synthesized to study not only the relationship between the structure of alanine containing peptides and their effects on germination of Bacillus thiaminolyticus spores but also their antibacterial activity. The peptides obtained did not show any effect on germination. They did not exhibit any antibacterial activity against Staphylococcus aureus, Sarcina lutea, Pseudomonas aeruginosa and Escherichia coli.