Colistin A is an antibiotic generated by certain strains of the bacteria Paenibacillus polymyxa. Colistin is a mixture of the cyclic polypeptides colistin A and B and belongs to the class of polypeptide antibiotics known as polymyxins. Colistin is effecti
Colistin adjuvant-2 is a compound that acts as a potentiation agent for colistin, effectively enhancing its activity against Gram-negative bacteria [1].
Antimicrobial Agent-1 (compound 6C) shows strong activity (MIC = 2 μg mL) against TolC mutant E. coli. Additionally, it synergistically interacts with Colistin to exhibit enhanced activity against Gram-negative bacteria. Importantly, Antimicrobial Agent-1 exhibits no cytotoxic effects on mammalian cell lines. Its MIC values on Caco-2 and Vero cell lines are greater than 128 μg mL [1].