Results 111 to 120 of about 181,738 (289)

Host defense peptides and their antimicrobial-immunomodulatory duality

open access: yesImmunobiology, 2011
Host defence peptides (HDPs) are short cationic molecules produced by the immune systems of most multicellular organisms and play a central role as effector molecules of innate immunity. Host defence peptides have a wide range of biological activities from direct killing of invading pathogens to modulation of immunity and other biological responses of ...
Lars, Steinstraesser   +3 more
openaire   +2 more sources

Extracellular Vesicles of Streptococcus anginosus Mediate Gastritis via Epithelial Barrier Disruption and Macrophage‐driven Inflammation

open access: yesAdvanced Science, EarlyView.
Streptococcus anginosus extracellular vesicles (SA‐EVs) accumulate in gastric tissue, disrupt epithelial tight junctions, and induce gastritis characterized by neutrophil infiltration and elevated cytokines (TNF‐α, IL‐6, IL‐17A). Proteomics identifies TMPC and FBP62 as key SA‐EVs virulence factors; their genetic deletion attenuates inflammation ...
Ying Gong   +12 more
wiley   +1 more source

Peptide Feeding and Mechanical Wounding for Tomato Seedlings

open access: yesBio-Protocol, 2019
Plants need to respond appropriately to wounding and herbivorous insects. Peptide signals have been implicated in local and systemic induction of appropriate plant defense responses.
Lei Wang, Yan Wang , Georg Felix
doaj   +1 more source

A protective role of gamma/delta T cells in primary infection with Listeria monocytogenes in mice. [PDF]

open access: yes, 1992
We have previously reported that T cells bearing T cell receptors (TCRs) of gamma/delta type appear at a relatively early stage of primary infection with Listeria monocytogenes in mice.
Bluestone, JA   +7 more
core  

PBRM1 Deficiency Reshapes an Immune Suppressive Microenvironment Through Epigenetic Tuning of PBRM1‐KDM5C‐IL6 Axis in ccRCC

open access: yesAdvanced Science, EarlyView.
PBRM1 ranks as the second most commonly mutated gene in ccRCC. This study reveals that PBRM1 loss promotes an immunosuppressive microenvironment by elevating M2 TAMs via the KDM5C–IL‐6 axis. These M2 TAMs, along with CAFs, form a barrier that excludes CD8+ T cells. Targeting IL‐6 synergizes with anti‐PD1 therapy, offering a promising strategy for PBRM1‐
Wenjiao Xia   +14 more
wiley   +1 more source

Phenotypic and Genotypic Characteristics of Methicillin-Resistant Staphylococcus aureus (MRSA) Related to Persistent Endovascular Infection. [PDF]

open access: yes, 2019
Persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia (PB) represents an important subset of S. aureus infection and correlates with poor clinical outcomes.
Bayer, Arnold S   +3 more
core   +1 more source

Host‐Directed Antiviral Activity of SB2960 Through Selective Induction and Remodeling of Stress Granules

open access: yesAdvanced Science, EarlyView.
Amid the ongoing threat of emerging viral pathogens, host‐directed antivirals offer a strategy to overcome viral mutation and drug resistance. SB2960, a small‐molecule inducer of stress granules (SGs), exhibits potent broad‐spectrum antiviral activity with minimal cytotoxicity.
Wan Gi Byun   +14 more
wiley   +1 more source

Epithelial antimicrobial peptides in host defense against infection [PDF]

open access: yesRespiratory Research, 2000
One component of host defense at mucosal surfaces seems to be epithelium-derived antimicrobial peptides. Antimicrobial peptides are classified on the basis of their structure and amino acid motifs. Peptides of the defensin, cathelicidin, and histatin classes are found in humans.
openaire   +3 more sources

Flipping the Switch: MeCP2‐Mediated Lactylation Rewires Microglial Metabolism and Inflammation via the HK2/mTOR Axis in Poststroke Neuroinflammation

open access: yesAdvanced Science, EarlyView.
Stroke‐induced lactate accumulation promotes p300‐mediated lactylation of methyl‐CpG binding protein 2 (MeCP2) at lysine 210, which reprograms microglial metabolism toward glycolysis and activates the hexokinase 2 (HK2)/mTOR axis. This cascade promotes proinflammatory responses and impairs neurofunctional outcomes.
Zengyu Zhang   +12 more
wiley   +1 more source

Staphylococcus epidermidis-induced Interleukin-1 Beta and Human Beta-defensin-2 Expression in Human Keratinocytes is Regulated by the Host Molecule A20 (TNFAIP3)

open access: yesActa Dermato-Venereologica, 2018
Staphylococcus epidermidis is an abundant skin commensal capable of activating cutaneous defense responses, such as induction of cytokines and antimicrobial peptides. To permanently colonize human skin and prevent inflammation S.
Maren Simanski   +3 more
doaj   +1 more source

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