Cited by 4Mycobacterium research and diagnosisTuberculosis Research and EpidemiologyLeprosy Research and Treatment

Repurposing of statins for Buruli Ulcer treatment: antimicrobial activity against Mycobacterium ulcerans

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Dominguez, Juan, Mendes, Ana I., Pacheco, Ana R., Peixoto, Maria J., Pedrosa, Jorge, Fraga, Alexandra G.·2023·Frontiers in Microbiology

Abstract

Mycobacterium ulcerans causes Buruli Ulcer, a neglected infectious skin disease that typically progresses from an early non-ulcerative lesion to an ulcer with undermined edges. If not promptly treated, these lesions can lead to severe disfigurement and disability. The standard antibiotic regimen for Buruli Ulcer treatment has been oral rifampicin combined with intramuscular streptomycin administered daily for 8 weeks. However, there has been a recent shift toward replacing streptomycin with oral clarithromycin. Despite the advantages of this antibiotic regimen, it is limited by low compliance, associated side effects, and refractory efficacy for severe ulcerative lesions. Therefore, new drug candidates with a safer pharmacological spectrum and easier mode of administration are needed. Statins are lipid-lowering drugs broadly used for dyslipidemia treatment but have also been reported to have several pleiotropic effects, including antimicrobial activity against fungi, parasites, and bacteria. In the present study, we tested the susceptibility of M. ulcerans to several statins, namely atorvastatin, simvastatin, lovastatin and fluvastatin. Using broth microdilution assays and cultures of M. ulcerans-infected macrophages, we found that atorvastatin, simvastatin and fluvastatin had antimicrobial activity against M. ulcerans. Furthermore, when using the in vitro checkerboard assay, the combinatory additive effect of atorvastatin and fluvastatin with the standard antibiotics used for Buruli Ulcer treatment highlighted the potential of statins as adjuvant drugs. In conclusion, statins hold promise as potential treatment options for Buruli Ulcer. Further studies are necessary to validate their effectiveness and understand the mechanism of action of statins against M. ulcerans.

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Authors
Dominguez, J., Mendes, A. I., Pacheco, A. R., Peixoto, M. J., Pedrosa, J., & Fraga, A. G.
Affiliations
University of Minho (PT)
Corresponding author
Fraga, Alexandra G.
Venue
Frontiers in Microbiology
Published
2023-09-29
Volume
14
Pages
1266261-1266261
ISSN
1664-302X (ISSN-L)
OpenAlex
W4387213184
Cited by
4
References
56
Citations by year
2025: 2 · 2024: 2
FWCI
0.80
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Microbiology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Indian National Science Academy
  • Secretaría de Educación Superior, Ciencia, Tecnología e Innovación
  • Fundação para a Ciência e a Tecnologia (01-0145, UIDB/50026/2020, PORTUGAL 2020, NORTE-01-0145-FEDER-085468, UIDP/50026/2020, NORTE2020, NORTE‐01‐0145‐FEDER‐000039, NORTE-01-0145)
  • European Regional Development Fund (UIDP/50026/2020, PORTUGAL2020, NORTE-01-0145-FEDER-000039, UIDB/50026/2020, NORTE-2020)
Topics
  • Health Sciences › Medicine › Epidemiology › Mycobacterium research and diagnosis
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Infectious Diseases › Leprosy Research and Treatment
Keywords
Buruli ulcer, Mycobacterium ulcerans, statins, antimicrobial activity, atorvastatin, simvastatin, fluvastatin, lovastatin, drug repurposing, adjuvant therapy, combination therapy, pleiotropy, macrophage infection

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