A strategy to control colonization of pathogens: embedding of lactic acid bacteria on the surface of urinary catheter
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MINI-REVIEW
A strategy to control colonization of pathogens: embedding of lactic acid bacteria on the surface of urinary catheter Fazlurrahman Khan 1 & Nazia Tabassum 2 & Young-Mog Kim 1,3 Received: 2 August 2020 / Revised: 4 September 2020 / Accepted: 10 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Indwelling urinary catheterization is one of the major causes of urinary tract infection (UTI) in hospitalized patients worldwide. A catheter serves as a surface for the colonization and formation of biofilm by UTI-related pathogenic bacteria. To combat the biofilm formation on its surface, several strategies have already been employed such as coating it with antibiofilm and antimicrobial compounds. For instance, the application of lactic acid bacteria (LAB) offers a potential strategy for the treatment of biofilm formation on the surface of the urinary catheter due to its ability to kill the pathogenic bacteria. The killing of pathogenic bacteria by LAB occurs via the production of antimicrobial compounds such as lactic acid, bacteriocin, and hydrogen peroxide. LAB also displays a competitive exclusion mechanism to prevent the adhesion of pathogens on the surfaces. Hence, LAB has been extensively applied as a bacteriotherapy to combat infectious diseases. Several strategies have been employed to attach LAB to a surface, but its easy detachment during long time exposure becomes one of the drawbacks in its application. Here, we have proposed a novel strategy for its adhesion on the surface of the urinary catheter with the utilization of mannose-specific adhesin (Msa) protein in a way similar as uropathogenic bacteria interacts between Msa present on the tip of the type I fimbriae/pilus and the mannose moieties on the host epithelial cell surfaces. Key points • Urinary tract infection (UTI) is one of the common hospital–acquired infections, which is associated with the application of an indwelling urinary catheter. • Based on the competitive exclusions properties of LAB, attachment of the LAB on the catheter surface would be a promising approach to control the formation of pathogenic biofilm. • The strategy employed for the adhesion of LAB is via a covalent interaction of its mannose-specific adhesin (Msa) protein to the mannose residues grafted on the catheter surface. Keywords Biofilm . LAB . Mannose-specific adhesin (Msa) protein . Urinary catheter . UTI . Pathogens
Introduction * Fazlurrahman Khan [email protected] * Young-Mog Kim [email protected] 1
Institute of Food Science, Pukyong National University, Busan 48513, Korea
2
Industrial Convergence Bionix Engineering, Pukyong National University, Busan 48513, Republic of Korea
3
Department of Food Science and Technology, Pukyong National University, Busan 48513, Korea
Urinary tract infection (UTI) is among the frequently reported nosocomial infection by several multidrug resistant bacteria (Ahmed et al. 2019; Milovanovic et al. 2019). Although various factors are responsible for it, urinary catheters are being a major
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