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Quorum Sensing Mediates Interaction with In Vitro.
Microorganisms
January 2025
Shenzhen Third People's Hospital, National Clinical Research Centre for Infectious Disease, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen 518112, China.
and are opportunistic pathogens that cause severe infections in hospitals, and their co-infections are increasingly reported. The interspecies interactions between these two bacterial species and their potential impacts on infections are largely unexplored. In this study, we first demonstrated that inhibits the growth of by iron chelating via quorum sensing.
View Article and Find Full Text PDFToward Virulence Inhibition: Beyond Cell Wall.
Microorganisms
December 2024
Bach Institute of Biochemistry, Fundamentals of Biotechnology, Federal Research Center, Russian Academy of Sciences, Moscow 119071, Russia.
(Mtb) is one of the most successful bacterial pathogens in human history. Even in the antibiotic era, Mtb is widespread and causes millions of new cases of tuberculosis each year. The ability to disrupt the host's innate and adaptive immunity, as well as natural persistence, complicates disease control.
View Article and Find Full Text PDFESAT-6 protein suppresses allograft rejection by inducing CD4Foxp3 regulatory T cells through IκBα/cRel pathway.
Front Immunol
January 2025
Section of Immunology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
Background: Maintenance immunosuppression is required for suppression of alloimmunity or allograft rejection. However, continuous use of immunosuppressants may lead to various side effects, necessitating the use of alternative immunosuppressive drugs. The early secreted antigenic target of 6 kDa (ESAT-6) is a virulence factor and immunoregulatory protein of mycobacterium tuberculosis (Mtb), which alters host immunity through dually regulating development or activation of various immune cells.
View Article and Find Full Text PDFThe Fem cell-surface signaling system is regulated by ExsA in and affects pathogenicity.
iScience
January 2025
Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0W2, Canada.
Bacterial interspecies interactions shape microbial communities and influence the progression of polymicrobial infections. FemI-FemR-FemA, a cell-surface signaling system, in , is involved in the uptake of iron-chelating mycobactin produced by spp. In this report, we present the data that indicates the -PA1909 operon is positively regulated by ExsA, a master regulator for the type three secretion system (T3SS), connecting the Fem system with T3SS.
View Article and Find Full Text PDFT cell population size control by coronin 1 uncovered: from a spot identified by two-dimensional gel electrophoresis to quantitative proteomics.
Expert Rev Proteomics
January 2025
Biozentrum University of Basel, Basel, Switzerland.
Introduction: Recent work identified members of the evolutionarily conserved coronin protein family as key regulators of cell population size. This work originated ~25 years ago through the identification, by two-dimensional gel electrophoresis, of coronin 1 as a host protein involved in the virulence of Mycobacterium tuberculosis. We here describe the journey from a spot on a 2D gel to the recent realization that coronin proteins represent key controllers of eukaryotic cell population sizes, using ever more sophisticated proteomic techniques.
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