Results 41 to 50 of about 148,445 (252)

Inflammasome Activation by Bacterial Outer Membrane Vesicles Requires Guanylate Binding Proteins

mBio, 2017
The Gram-negative bacterial cell wall component lipopolysaccharide (LPS) is recognized by the noncanonical inflammasome protein caspase-11 in the cytosol of infected host cells and thereby prompts an inflammatory immune response linked to sepsis.
Ryan Finethy, Sarah Luoma, Nichole Orench-Rivera, Eric M. Feeley, Arun K. Haldar, Masahiro Yamamoto, Thirumala-Devi Kanneganti, Meta J. Kuehn, Jörn Coers   +8 more
doaj   +1 more source

Mucin adsorbed by E. coli can affect neutrophil activation in vitro

FEBS Open Bio, 2020
Bacteria colonizing human intestine adhere to the gut mucosa and avoid the innate immune system. We previously demonstrated that Escherichia coli isolates can adsorb mucin from a diluted solution in vitro.
Elena Mikhalchik, Nadezhda Balabushevich, Tatiana Vakhrusheva, Alexey Sokolov, Julia Baykova, Daria Rakitina, Petr Scherbakov, Sergey Gusev, Alexander Gusev, Zaira Kharaeva, Olga Bukato, Olga Pobeguts   +11 more
doaj   +1 more source

Selectivity in Lipid Binding to the Bacterial Outer Membrane Protein OmpF [PDF]

Biophysical Journal, 2000
The outer membrane porin OmpF from Escherichia coli has been reconstituted into lipid bilayers of defined composition, and fluorescence spectroscopy is used to characterize its interaction with the surrounding lipid. OmpF is a trimer within the membrane.
O'Keeffe, Aisling H., East, J. Malcolm, Lee, Anthony G.   +2 more
openaire   +3 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Polymyxins slow down lateral diffusion of proteins and lipopolysaccharide in the E. coli outer membrane

Communications Biology
Polymyxins are often administered as last resort antibiotics for Gram-negative bacterial infections. However, given unwanted side-effects, efficacy and recent reports of resistance against polymyxins, there is an urgency to develop alternatives.
Dheeraj Prakaash, Syma Khalid
doaj   +1 more source

The participation of outer membrane proteins in the bacterial sensitivity to nanosilver

Postępy Higieny i Medycyny Doświadczalnej, 2016
The presented study is to analyze the participation of outer membrane proteins of Gram- negative bacteria in sensitivity to silver nanomaterials. The mechanism of interaction of silver with the bacterial cell is best described in this group of microorganisms.
Anna, Kędziora, Eva, Krzyżewska, Bartłomiej, Dudek, Gabriela, Bugla-Płoskońska   +3 more
openaire   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Analyzing the molecular mechanism of lipoprotein localization in Brucella

Frontiers in Microbiology, 2015
Bacterial lipoproteins possess comprehensive structure and functionality, ranging from bacterial physiology to pathogenic processes. As such many lipoproteins, originating from Brucella are exploited as potential vaccines to countermeasure brucellosis ...
Shivani eGoolab, Shivani eGoolab, Robyn Lindsay Roth, Henriette evan Heerden, Michael Craig Crampton   +4 more
doaj   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source