In vitro and in vivo anti- Clostridioides difficile effect of a probiotic Bacillus amyloliquefaciens strainIn Vitro and In Vivo Anti-Clostridioides difficile Effect of a Probiotic Bacillus amyloliquefaciens Strain
- Other Titles
- In Vitro and In Vivo Anti-Clostridioides difficile Effect of a Probiotic Bacillus amyloliquefaciens Strain
- Authors
- Islam Md Imtiazul; Seo Hoonhee; Redwan Asma; Kim Sukyung; Lee Saebim; Siddiquee Mashuk; 송호연
- Issue Date
- 28-Jan-2022
- Publisher
- 한국미생물·생명공학회
- Keywords
- Clostridioides difficile; Bacillus amyloliquefaciens; BA PMC-80; probiotic; antibiotic
- Citation
- Journal of Microbiology and Biotechnology, v.32, no.1, pp 46 - 55
- Pages
- 10
- Journal Title
- Journal of Microbiology and Biotechnology
- Volume
- 32
- Number
- 1
- Start Page
- 46
- End Page
- 55
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/20275
- DOI
- 10.4014/jmb.2107.07057
- ISSN
- 1017-7825
1738-8872
- Abstract
- Clostridioides difficile infection (CDI) is a significant cause of hospital-acquired and antibioticmediated intestinal diseases and is a growing global public health concern. Overuse of antibiotics and their effect on normal intestinal flora has increased the incidence and severity of infections.
Thus, the development of new, effective, and safe treatment options is a high priority. Here, we report a new probiotic strain, Bacillus amyloliquefaciens (BA PMC-80), and its in vitro/in vivo anti-C.
difficile effect as a prospective novel candidate for replacing conventional antibiotics. BA PMC-80 showed a significant anti-C. difficile effect in coculture assay, and its cell-free supernatant (CFS) also exhibited a considerable anti-C. difficile effect with an 89.06 μg/ml 50% minimal inhibitory concentration (MIC) in broth microdilution assay. The CFS was stable and equally functional under different pHs, heat, and proteinase treatments. It also exhibited a high sensitivity against current antibiotics and no toxicity in subchronic toxicity testing in hamsters. Finally, BA PMC-80 showed a moderate effect in a hamster CDI model with reduced infection severity and delayed death.
However, further studies are required to optimize the treatment condition of the hamster CDI model for better efficacy and identify the antimicrobial compound produced by BA PMC-80.
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