Results 71 to 80 of about 640,235 (385)

Structural basis of lipopolysaccharide extraction by the LptB2FGC complex

Nature, 2019
In Gram-negative bacteria, lipopolysaccharide is essential for outer membrane formation and antibiotic resistance. The seven lipopolysaccharide transport (Lpt) proteins A–G move lipopolysaccharide from the inner to the outer membrane.
Yanyan Li, B. Orlando, M. Liao
semanticscholar   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

The kinases MSK1 and MSK2 act as negative regulators of Toll-like receptor signaling [PDF]

, 2008
The kinases MSK1 and MSK2 are activated 'downstream' of the p38 and Erk1/2 mitogen-activated protein kinases. Here we found that MSK1 and MSK2 were needed to limit the production of proinflammatory cytokines in response to stimulation of primary ...
A Cuenda, A Soloaga, A Sommer, Andrew Wingate, B Echtenacher, B Echtenacher, BG Stiles, C Platzer, CA Gogos, Claire E Monk, Claus Johansen, D Rittirsch, DM Dambach, ER Ottosen, F Hildebrand, FY Liew, GR Wiggin, GY Song, H Chi, J Bain, J Darragh, J Han, J Rouse, J Simon C Arthur, Jin Mo Park, JM Park, Joanne Darragh, Joanne McIlrath, JS Arthur, JS Arthur, Julia M Carr, KV Salojin, Lars Iversen, M Brook, M Hammer, M Saraiva, ML Steinhauser, MS Lee, NC Riedamann, NW Freshney, Olga Ananieva, OM Peck-Palmer, P Chen, PC Cheung, PJ Murray, Q Zhao, R Kuhn, Rachel Toth, SE Moreno, SJ O'Keefe, SM Miggin, SQ Latifi, Susana G Santos, T Kawai, T Lang, T van der Poll, VA Beardmore, VS Carl, WJ Hubbard, X Zhang, Y Kalechman, YJ Kang   +61 more
core   +3 more sources

Chimeric diphtheria toxin–CCL8 cytotoxic peptide for breast cancer management

Molecular Oncology, EarlyView.
DTCCL8 is a recombinant fusion toxin that targets cancer cells expressing chemokine receptors. By combining diphtheria toxin with CCL8, DTCCL8 binds to multiple receptors on tumor cells and induces selective cytotoxicity. This strategy enables receptor‐mediated targeting of cancer and may support the development of chemokine‐guided therapeutics ...
Bernardo Chavez, Asieh Naderi, Kim‐Tuyen Huynh‐Dam, Vitali Sikirzhytski, Ioulia Chatzistamou, Hippokratis Kiaris   +5 more
wiley   +1 more source

Immunomodulatory effects of 17-O-acetylacuminolide in RAW264.7 cells and HUVECs : involvement of MAPK and NF-κB pathways [PDF]

, 2014
The terpenoid 17-O-acetylacuminolide (AA) was shown to inhibit the production of several inflammatory mediators. However, the mechanisms by which this compound elicited its anti-inflammatory activity remain to be elucidated.
Achoui, Mouna, Haegeman, Guy, Heyninck, Karen, Looi, Chung Yeng, Mustafa, Ali Mohd, Mustafa, Mohd Rais   +5 more
core   +1 more source

Colistin kills bacteria by targeting lipopolysaccharide in the cytoplasmic membrane

eLife, 2018
Colistin is an antibiotic of last resort, but has poor efficacy and resistance is a growing problem. Whilst it is well established that colistin disrupts the bacterial outer membrane (OM) by selectively targeting lipopolysaccharide (LPS), it was unclear ...
A. Sabnis, Katheryn L. H. Hagart, A. Klöckner, M. Becce, Lindsay E. Evans, Christopher D. Furniss, D. Mavridou, R. Murphy, M. Stevens, J. Davies, G. Larrouy-Maumus, Thomas B. Clarke, A. Edwards   +12 more
semanticscholar   +1 more source

Protein O‐glycosylation in the Bacteroidota phylum

FEBS Open Bio, EarlyView.
Species of the Bacteroidota phylum exhibit a unique O‐glycosylation system. It modifies noncytoplasmic proteins on a specific amino acid motif with a shared glycan core but a species‐specific outer glycan. A locus of multiple glycosyltransferases responsible for the synthesis of the outer glycan has been identified.
Lonneke Hoffmanns, Dennis Svedberg, André Mateus   +2 more
wiley   +1 more source

Function and Biogenesis of Lipopolysaccharides [PDF]

EcoSal Plus, 2018
The cell envelope is the first line of defense between a bacterium and the world-at-large. Often, the initial steps that determine the outcome of chemical warfare, bacteriophage infections, and battles with other bacteria or the immune system greatly depend on the structure and composition of the bacterial cell surface.
Blake R. Bertani, Natividad Ruiz
openaire   +2 more sources

Structural basis for unidirectional export of lipopolysaccharide to the cell surface

Nature, 2019
Gram-negative bacteria are surrounded by an inner cytoplasmic membrane and by an outer membrane, which serves as a protective barrier to limit entry of many antibiotics.
T. Owens, Rebecca J. Taylor, Karanbir S. Pahil, B. Bertani, N. Ruiz, A. Kruse, D. Kahne   +6 more
semanticscholar   +1 more source

Research progress on the metabolic transformation of Shenling Baizhu San under the influence of the gut microbiota

Advanced Chinese Medicine, EarlyView.
Abstract The gut microbiota plays a pivotal role in maintaining host metabolic homeostasis and overall physiological functions. Shenling Baizhu San (SLBZS), a time‐honored classical prescription for tonifying Qi, strengthening the spleen, removing dampness, and arresting diarrhea, has shown broad clinical efficacy in digestive disorders.
Jinlan Di, Xiaochun Zhang
wiley   +1 more source