PUBLICATION

Rifamycin O, An Alternative Anti-Mycobacterium abscessus Agent

Authors
Hanh, B.T.B., Park, J.W., Kim, T.H., Kim, J.S., Yang, C.S., Jang, K., Cui, J., Oh, D.C., Jang, J.
ID
ZDB-PUB-200422-15
Date
2020
Source
Molecules   25(7): (Journal)
Registered Authors
Keywords
Mycobacterium abscessus, drug resistance, non-tuberculous mycobacteria, rifamycin, zebrafish bacterial infection
MeSH Terms
  • Animals
  • Anti-Bacterial Agents/chemistry
  • Anti-Bacterial Agents/pharmacology*
  • Humans
  • Luminescent Measurements
  • Mice
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Mycobacterium abscessus/drug effects*
  • Rifamycins/chemistry
  • Rifamycins/pharmacology*
  • Zebrafish
PubMed
32244387 Full text @ Molecules
Abstract
Mycobacterium abscessus is the most difficult-to-treat nontuberculous mycobacteria because of its resistance to many antibiotics. In this study, we screened the Korea Chemical Bank library for a bioluminescent reporter assay to identify molecules capable of acting against M. abscessus. On application of the assay, rifamycin O showed excellent in vitro activity with a narrow range of the minimum inhibitory concentration required to inhibit the growth of 90% of the bacterium (MIC90 = 4.0-6.2 μM); its in vivo efficacy in the zebrafish (Danio rerio) infection model was comparable to that of rifabutin at 25 μM. Furthermore, rifamycin O did not show significant toxicity in cells and the zebrafish model. These results are the first in vivo indication that rifamycin O may be a drug candidate for treating M. abscessus infections.
Genes / Markers
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping