PMID- 36040172 OWN - NLM STAT- MEDLINE DCOM- 20220923 LR - 20230301 IS - 1098-6596 (Electronic) IS - 0066-4804 (Print) IS - 0066-4804 (Linking) VI - 66 IP - 9 DP - 2022 Sep 20 TI - Novel Antibacterial Activity of Febuxostat, an FDA-Approved Antigout Drug against Mycobacterium tuberculosis Infection. PG - e0076222 LID - 10.1128/aac.00762-22 [doi] LID - e00762-22 AB - Accumulating evidence suggests that drug repurposing has drawn attention as an anticipative strategy for controlling tuberculosis (TB), considering the dwindling drug discovery and development pipeline. In this study, we explored the antigout drug febuxostat and evaluated its antibacterial activity against Mycobacterium species. Based on MIC evaluation, we found that febuxostat treatment significantly inhibited mycobacterial growth, especially that of Mycobacterium tuberculosis (Mtb) and its phylogenetically close neighbors, M. bovis, M. kansasii, and M. shinjukuense, but these microorganisms were not affected by allopurinol and topiroxostat, which belong to a similar category of antigout drugs. Febuxostat concentration-dependently affected Mtb and durably mediated inhibitory functions (duration, 10 weeks maximum), as evidenced by resazurin microtiter assay, time-kill curve analysis, phenotypic susceptibility test, and the Bactec MGIT 960 system. Based on these results, we determined whether the drug shows antimycobacterial activity against Mtb inside murine bone marrow-derived macrophages (BMDMs). Notably, febuxostat markedly suppressed the intracellular growth of Mtb in a dose-dependent manner without affecting the viability of BMDMs. Moreover, orally administered febuxostat was efficacious in a murine model of TB with reduced bacterial loads in both the lung and spleen without the exacerbation of lung inflammation, which highlights the drug potency. Taken together, unexpectedly, our data demonstrated that febuxostat has the potential for treating TB. FAU - Kim, Lee-Han AU - Kim LH AUID- ORCID: 0000-0003-3402-1769 AD - Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea. AD - Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, South Korea. FAU - Kang, Soon Myung AU - Kang SM AD - Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea. AD - Brain Korea 21 Project for Graduate School of Medical Science, Yonsei University College of Medicine, Seoul, South Korea. FAU - Whang, Jake AU - Whang J AUID- ORCID: 0000-0003-4444-508X AD - Korea Mycobacterium Resource Center (KMRC) & Basic Research Section, The Korean Institute of Tuberculosis (KIT), Cheongju-si, Chungcheongbuk-do, South Korea. FAU - Kwon, Kee Woong AU - Kwon KW AUID- ORCID: 0000-0002-6259-855X AD - Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea. AD - Brain Korea 21 Project for Graduate School of Medical Science, Yonsei University College of Medicine, Seoul, South Korea. FAU - Shin, Sung Jae AU - Shin SJ AUID- ORCID: 0000-0003-0854-4582 AD - Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea. AD - Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, South Korea. AD - Brain Korea 21 Project for Graduate School of Medical Science, Yonsei University College of Medicine, Seoul, South Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220830 PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Antitubercular Agents) RN - 101V0R1N2E (Febuxostat) RN - 63CZ7GJN5I (Allopurinol) SB - IM MH - Allopurinol MH - Animals MH - Antitubercular Agents/pharmacology/therapeutic use MH - Febuxostat/pharmacology/therapeutic use MH - Mice MH - *Mycobacterium tuberculosis MH - *Tuberculosis/drug therapy/microbiology PMC - PMC9487535 OTO - NOTNLM OT - Mycobacterium tuberculosis OT - febuxostat OT - in vivo efficacy testing OT - intracellular drug susceptibility test OT - minimum inhibitory concentrations COIS- The authors declare no conflict of interest. EDAT- 2022/08/31 06:00 MHDA- 2022/09/24 06:00 PMCR- 2023/02/28 CRDT- 2022/08/30 09:04 PHST- 2022/08/31 06:00 [pubmed] PHST- 2022/09/24 06:00 [medline] PHST- 2022/08/30 09:04 [entrez] PHST- 2023/02/28 00:00 [pmc-release] AID - 00762-22 [pii] AID - aac.00762-22 [pii] AID - 10.1128/aac.00762-22 [doi] PST - ppublish SO - Antimicrob Agents Chemother. 2022 Sep 20;66(9):e0076222. doi: 10.1128/aac.00762-22. Epub 2022 Aug 30.