Results 71 to 80 of about 2,837,216 (296)

NLRC5, at the Heart of Antigen Presentation [PDF]

open access: yesFrontiers in Immunology, 2013
Nucleotide-binding domain and leucine-rich repeat containing receptors (NLRs) are intracellular proteins mainly involved in pathogen recognition, inflammatory responses, and cell death. Until recently, the function of the family member NLR caspase recruitment domain (CARD) containing 5 (NLRC5) has been a matter of debate.
Neerincx Andreas   +3 more
openaire   +5 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Identification of proteases employed by dendritic cells in the processing of protein purified derivative (PPD) [PDF]

open access: yes, 2004
Dendritic cells (DC) are known to present exogenous protein Ag effectively to T cells. In this study we sought to identify the proteases that DC employ during antigen processing.
Mansour Mohamadzadeh   +9 more
core   +1 more source

COVID-19: Attacks Immune Cells and Interferences with Antigen Presentation through MHC-Like Decoy System [PDF]

open access: yes, 2021
The high mortality of COVID-19 is related to poor antigen presentation and lymphopenia. In this present study, domain search results showed that many proteins of the SARS-COV-2 virus had MHC-like domains, which were similar to decoys for the human immune
liu, wenzhong, li, hualan
core   +1 more source

Autophagy and antigen presentation [PDF]

open access: yesCellular Microbiology, 2006
CD4(+) T cells co-ordinate adaptive immunity and are required for immunological memory establishment and maintenance. They are thought to primarily recognize extracellular antigens, which are endocytosed, processed by lysosomal proteases and then presented on major histocompatibility complex (MHC) class II.
openaire   +2 more sources

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Effects of MicroRNA on Regulatory T Cells and Implications for Adoptive Cellular Therapy to Ameliorate Graft-versus-Host Disease

open access: yesFrontiers in Immunology, 2018
Regulatory T cells (Tregs) are key mediators of the immune system. MicroRNAs (miRNAs) are a family of ~22 nucleotide non-coding RNAs that are processed from longer precursors by the RNases Drosha and Dicer.
Keli L. Hippen   +4 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Making Antigen Presentable [PDF]

open access: yesThe Journal of Immunology, 2007
In the late 1960s and early 1970s, a shift occurred in the focus of immunological research from Ab-dominated studies to ones involving cellular components of immunity such as T cells, B cells, and APCs.
openaire   +2 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

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