Ultrastructural evidence of invasive activity of Vibrio cholerae.

Bull Exp Biol Med

Laboratory of Pathomorphology and Pathophysiology, Plague Control Institute, Rostov-on-Don.

Published: April 2004

The development of experimental cholera in suckling rabbits is associated with typical cholerogenic syndrome: the presence of Vibrio cholerae in the blood, bile (in 60 and 70% cases, respectively), small and large intestine (in 100% cases). Simultaneously with enterocyte desquamation and increased permeability of the blood-enterocyte barrier, the vibrios are released into villous stroma and then into the microcirculatory bed. the zot toxin is involved in the mechanism of Vibrio cholerae invasion, the corresponding gene is present in the genome of the studied strain.

Download full-text PDF

Source
http://dx.doi.org/10.1023/b:bebm.0000035143.55617.04DOI Listing

Publication Analysis

Top Keywords

vibrio cholerae
12
ultrastructural evidence
4
evidence invasive
4
invasive activity
4
activity vibrio
4
cholerae development
4
development experimental
4
experimental cholera
4
cholera suckling
4
suckling rabbits
4

Similar Publications

For any organism, survival is enhanced by the ability to sense and respond to threats in advance. For bacteria, danger sensing among kin cells has been observed, but the presence or impacts of general danger signals are poorly understood. Here we show that different bacterial species use exogenous peptidoglycan fragments, which are released by nearby kin or non-kin cell lysis, as a general danger signal.

View Article and Find Full Text PDF

Structural and functional analysis of the lipoprotein chaperone LolA.

Front Microbiol

December 2024

Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.

Lipoproteins are crucial for maintaining the structural integrity of bacterial membranes. In Gram-negative bacteria, the localization of lipoprotein (Lol) system facilitates the transport of these proteins from the inner membrane to the outer membrane. In , an ε-proteobacterium, lipoprotein transport differs significantly from the canonical and well-studied system in , particularly due to the absence of LolB and the use of a LolF homodimer instead of the LolCE heterodimer.

View Article and Find Full Text PDF

Biofilms are ubiquitous surface-associated bacterial communities embedded in an extracellular matrix. It is commonly assumed that biofilm cells are glued together by the matrix; however, how the specific biochemistry of matrix components affects the cell-matrix interactions and how these interactions vary during biofilm growth remain unclear. Here, we investigate cell-matrix interactions in Vibrio cholerae, the causative agent of cholera.

View Article and Find Full Text PDF

Cholera rapid diagnostic tests (RDTs) are vulnerable to virulent bacteriophage predation. We hypothesized that an enhanced cholera RDT that detects the common virulent bacteriophage ICP1 might serve as a proxy for pathogen detection. We previously developed a monoclonal antibody (mAb) to the ICP1 major capsid protein.

View Article and Find Full Text PDF

Gene regulation at the post-transcriptional level is prevalent in all domains of life. In bacteria, ProQ-like proteins have emerged as important RNA chaperones facilitating RNA stability and RNA duplex formation. In the major human pathogen Vibrio cholerae, post-transcriptional gene regulation is key for virulence, biofilm formation, and antibiotic resistance, yet the role of ProQ has not been studied.

View Article and Find Full Text PDF

Want 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!