Antipropionibacterial activity of BAL19403, a novel macrolide antibiotic.

Abstract

BAL19403 exemplifies a new family of macrolide antibiotics with excellent in vitro activity against propionibacteria. MICs indicated that BAL19403 was very active against erythromycin-resistant and clindamycin-resistant propionibacteria with mutations in the region from positions 2057 to 2059 (Escherichia coli numbering) of the 23S rRNA, although it is less active against those rare clinical isolates in which a methyltransferase, ErmX, confers macrolide and lincosamide resistance by dimethylation of the adenine moiety at position 2058. BAL19403 was predominantly bacteriostatic toward the propionibacteria, and population analyses indicated resistance selection frequencies for BAL19403 and the comparator drugs (erythromycin, clindamycin) in the range 10(-8) to 10(-9) for cutaneous propionibacteria with diverse antibiotic resistance profiles. On the basis of its antipropionibacterial activity and its high anti-inflammatory activity, BAL19403 represents a promising topical treatment for mild to moderate inflammatory acne vulgaris.

• Authors: Stefanie Heller, Laurenz Kellenberger, Stuart Shapiro
• Journal: Antimicrobial agents and chemotherapy (Antimicrob Agents Chemother) Vol. 51 Issue 6 Pg. 1956-61 (Jun 2007) ISSN: 0066-4804 [Print] United States
• PMID: 17387155 (Publication Type: Journal Article)

Chemical References

• Anti-Bacterial Agents
• BAL 19403
• Macrolides
• Clindamycin
• Erythromycin

Topics

• Anti-Bacterial Agents (pharmacology)
• Clindamycin (pharmacology)
• Drug Resistance, Bacterial
• Erythromycin (pharmacology)
• Gram-Positive Cocci (classification, drug effects, growth & development)
• Humans
• Macrolides (chemistry, pharmacology)
• Microbial Sensitivity Tests (methods)
• Propionibacterium (drug effects, growth & development)