Cited by 29Probiotics and Fermented FoodsAntibiotic Resistance in BacteriaEnzyme Production and Characterization

Bile Salt Hydrolase Degrades β-Lactam Antibiotics and Confers Antibiotic Resistance on Lactobacillus paragasseri

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Kusada, Hiroyuki, Arita, Masanori, Tohno, Masanori, Tamaki, Hideyuki·2022·Frontiers in Microbiology

Abstract

Bile salt hydrolase (BSH) is a well-characterized probiotic enzyme associated with bile detoxification and colonization of lactic acid bacteria in the human gastrointestinal tract. Here, we isolated a putative BSH (LpBSH) from the probiotic bacterium Lactobacillus paragasseri JCM 5343 T and demonstrated its bifunctional activity that allows it to degrade not only bile salts but also the antibiotic (penicillin). Although antibiotic resistance and bile detoxification have been separately recognized as different microbial functions, our findings suggest that bifunctional BSHs simultaneously confer ecological advantages to host gut bacteria to improve their survival in the mammalian intestine by attaining a high resistance to bile salts and β-lactams. Strain JCM 5343 T showed resistance to both bile salts and β-lactam antibiotics, suggesting that LpBSH may be involved in this multi-resistance of the strain. We further verified that such bifunctional enzymes were broadly distributed among the phylogeny, suggesting that the bifunctionality may be conserved in other BSHs of gut bacteria. This study revealed the physiological role and phylogenetic diversity of bifunctional enzymes degrading bile salts and β-lactams in gut bacteria. Furthermore, our findings suggest that the hitherto-overlooked penicillin-degrading activity of penicillin acylase could be a potential new target for the probiotic function of gut bacteria.

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Authors
Kusada, H., Arita, M., Tohno, M., & Tamaki, H.
Affiliations
  • National Institute of Advanced Industrial Science and Technology (JP)
  • National Institute of Genetics (JP)
  • National Agriculture and Food Research Organization (JP)
  • University of Tsukuba (JP)
Corresponding author
  • Kusada, Hiroyuki
  • Tamaki, Hideyuki
Venue
Frontiers in Microbiology
Published
2022-06-06
Volume
13
Pages
858263-858263
ISSN
1664-302X (ISSN-L)
OpenAlex
W4281672846
Cited by
29
References
58
Citations by year
2026: 5 · 2025: 12 · 2024: 7 · 2023: 1 · 2022: 4
FWCI
3.19
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)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (JP19H05683, JP19H05679)
  • Japan Society for the Promotion of Science (JP19K16633)
  • Exploratory Research for Advanced Technology (JPMJER1502)
  • Japan Agency for Medical Research and Development (JP18gm6010019)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Antibiotic Resistance in Bacteria
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
Keywords
bile salt hydrolase, Lactobacillus paragasseri, beta-lactam antibiotics, penicillin degradation, antibiotic resistance, bifunctional enzyme, gut microbiota, lactic acid bacteria, penicillin acylase, multidrug resistance, phylogenetic diversity

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