The Shigella actin assembly protein IcsA is removed from the bacterial surface by the protease IcsP. We show that decreased intracellular spreading of virK::Tn10 mutants is due in part to significant increases in IcsP and IcsP-mediated cleavage of IcsA and that IcsP expression is a critical determinant of Shigella virulence.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC547015 | PMC |
| http://dx.doi.org/10.1128/IAI.73.2.1217-1220.2005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The role and mechanisms of Helicobacter pylori outer membrane vesicles in the pathogenesis of extra-gastrointestinal diseases.
Microb Pathog
January 2025
Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China. Electronic address:
Helicobacter pylori (H. pylori) infection have been closely associated with several extra-gastrointestinal disorders. Outer membrane vesicles (OMVs), as lipid-membrane-bounded nanoparticles, are usually shed from Gram-negative both in vitro and in vivo.
View Article and Find Full Text PDFA periplasmic protein modulates the proteolysis of peptidoglycan hydrolases to maintain cell wall homeostasis in .
Proc Natl Acad Sci U S A
January 2025
Department of Biological Sciences, College of Natural Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Bacterial cell wall assembly and remodeling require activities of peptidoglycan (PG) hydrolases as well as PG synthases. In particular, the activity of DD-endopeptidases, which cleave the 4-3 peptide crosslinks in PG, is essential for PG expansion in gram-negative bacteria. Maintaining optimal levels of DD-endopeptidases is critical for expanding PG without compromising its integrity.
View Article and Find Full Text PDFMolecular Symphony of Mitophagy: Ubiquitin-Specific Protease-30 as a Maestro for Precision Management of Neurodegenerative Diseases.
CNS Neurosci Ther
January 2025
Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, USA.
Introduction: Mitochondrial dysfunction stands as a pivotal feature in neurodegenerative disorders, spurring the quest for targeted therapeutic interventions. This review examines Ubiquitin-Specific Protease 30 (USP30) as a master regulator of mitophagy with therapeutic promise in Alzheimer's disease (AD) and Parkinson's disease (PD). USP30's orchestration of mitophagy pathways, encompassing PINK1-dependent and PINK1-independent mechanisms, forms the crux of this exploration.
View Article and Find Full Text PDFRecent advances in bacterial outer membrane vesicles: Effects on the immune system, mechanisms and their usage for tumor treatment.
J Pharm Anal
December 2024
Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China.
Tumor treatment remains a significant medical challenge, with many traditional therapies causing notable side effects. Recent research has led to the development of immunotherapy, which offers numerous advantages. Bacteria inherently possess motility, allowing them to preferentially colonize tumors and modulate the tumor immune microenvironment, thus influencing the efficacy of immunotherapy.
View Article and Find Full Text PDFModulation of the mechanism of action of antibacterial silver N-heterocyclic carbene complexes by variation of the halide ligand.
RSC Adv
January 2025
Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig Beethovenstr. 55 38106 Braunschweig Germany
The antimicrobial properties of silver and silver complexes have been known in medicine since ancient times. However, limitations in stability and solubility have impaired medicinal chemistry and drug development research. With the advent of N-heterocyclic carbenes (NHC) as ligands, the development of synthesis methods for organometallic silver species of the type (NHC)AgX (where X = halide) has brought significant improvements, and the class of antimicrobial silver NHC complexes has emerged.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!