Bacterial phospholipases and sphingomyelinases are lipolytic esterases that are structurally and evolutionarily heterogeneous. These enzymes play crucial roles as virulence factors in several human and animal infectious diseases. Some bacterial phospholipases C (PLCs) have both phosphatidylcholinesterase and sphingomyelinase C activities. Among them, Listeria monocytogenes PlcB, Clostridium perfringens PLC, and Pseudomonas aeruginosa PlcH are the most deeply understood. In silico predictions of substrates docking with these three bacterial enzymes provide evidence that they interact with different substrates at the same active site. This review discusses structural aspects, substrate specificity, and the mechanism of action of those bacterial enzymes on target cells and animal infection models to shed light on their roles in pathogenesis.
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http://dx.doi.org/10.1002/2211-5463.13320 | DOI Listing |
Microb Pathog
December 2024
Master's in Health Sciences, Universidade do Oeste Paulista/UNOESTE, Rua José Bongiovani, 700 - Cidade Universitária, CEP: 19050-920, Presidente Prudente, SP, Brazil; Program of Animal Science, Universidade do Oeste Paulista/UNOESTE, Rua José Bongiovani, 700 - Cidade Universitária, CEP: 19050-920, Presidente Prudente, SP, Brazil. Electronic address:
Aims: This study aimed to identify and characterize Pseudomonas aeruginosa isolates from patients infected and uninfected with SARS-CoV-2, focusing on their phenotypic characteristics and antimicrobial resistance profiles.
Main Methods: A total of 100 P. aeruginosa isolates were obtained from patients admitted to a hospital in Presidente Prudente, SP, in 2021.
mBio
December 2024
Department of Biology, San Diego State University, San Diego, California, USA.
Unlabelled: Diverse marine animals undergo a metamorphic larval-to-juvenile transition in response to surface-bound bacteria. Although this host-microbe interaction is critical to establishing and maintaining marine animal populations, the functional activity of bacterial products and how they activate the host's metamorphosis program has not yet been defined for any animal. The marine bacterium stimulates the metamorphosis of a tubeworm called by producing a molecular syringe called metamorphosis-associated contractile structures (MACs).
View Article and Find Full Text PDFCell Mol Life Sci
December 2024
Department of Internal Medicine and Gastroenterology, Internistisches Klinikum München Süd, Am Isarkanal 36, Munich, Germany.
Front Microbiol
December 2024
College of Grassland Agriculture, Northwest A&F University, Yangling, China.
Immun Inflamm Dis
December 2024
Department of Clinical Laboratory, Zhongshan Second People's Hospital, Zhongshan, Guangdong, China.
Objective: To elucidate the role of phosphatidylcholine-specific phospholipase C (PC-PLC) in the antituberculosis (anti-TB) immune response mediated by dendritic cells (DCs).
Methods: In vivo, C57BL/6J mice infected with the Mycobacterium tuberculosis strain H37Rv. Before infection, the mice were pretreated with the PC-PLC inhibitor D609.
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