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necroptosis cross presentation

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https://www.readbyqxmd.com/read/28978351/the-caspase-8-ripk3-signaling-axis-in-antigen-presenting-cells-controls-the-inflammatory-arthritic-response
#1
Salina Dominguez, Anna B Montgomery, G Kenneth Haines, Christina L Bloomfield, Carla M Cuda
BACKGROUND: Caspase-8 is a well-established initiator of apoptosis and suppressor of necroptosis, but maintains functions beyond cell death that involve suppression of receptor-interacting serine-threonine kinases (RIPKs). A genome-wide association study meta-analysis revealed an SNP associated with risk of rheumatoid arthritis (RA) development within the locus containing the gene encoding for caspase-8. Innate immune cells, like macrophages and dendritic cells, are gaining momentum as facilitators of autoimmune disease pathogenesis, and, in particular, RA...
October 4, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28716805/sensing-of-viral-and-endogenous-rna-by-zbp1-dai-induces-necroptosis
#2
Jonathan Maelfait, Layal Liverpool, Anne Bridgeman, Katherine B Ragan, Jason W Upton, Jan Rehwinkel
Nucleic acids are potent triggers for innate immunity. Double-stranded DNA and RNA adopt different helical conformations, including the unusual Z-conformation. Z-DNA/RNA is recognised by Z-binding domains (ZBDs), which are present in proteins implicated in antiviral immunity. These include ZBP1 (also known as DAI or DLM-1), which induces necroptosis, an inflammatory form of cell death. Using reconstitution and knock-in models, we report that mutation of key amino acids involved in Z-DNA/RNA binding in ZBP1's ZBDs prevented necroptosis upon infection with mouse cytomegalovirus...
September 1, 2017: EMBO Journal
https://www.readbyqxmd.com/read/24639873/the-impact-of-autophagy-on-cell-death-modalities
#3
REVIEW
Stefan W Ryter, Kenji Mizumura, Augustine M K Choi
Autophagy represents a homeostatic cellular mechanism for the turnover of organelles and proteins, through a lysosome-dependent degradation pathway. During starvation, autophagy facilitates cell survival through the recycling of metabolic precursors. Additionally, autophagy can modulate other vital processes such as programmed cell death (e.g., apoptosis), inflammation, and adaptive immune mechanisms and thereby influence disease pathogenesis. Selective pathways can target distinct cargoes (e.g., mitochondria and proteins) for autophagic degradation...
2014: International Journal of Cell Biology
https://www.readbyqxmd.com/read/22366289/autophagy-is-a-survival-force-via-suppression-of-necrotic-cell-death
#4
REVIEW
Han-Ming Shen, Patrice Codogno
Macroautophagy or autophagy is a self-digesting mechanism that the cellular contents are engulfed by autophagosomes and delivered to lysosomes for degradation. Although it has been well established that autophagy is an important protective mechanism for cells under stress such as starvation via provision of nutrients and removal of protein aggregates and damaged mitochondria, there is a very complex relation between autophagy and cell death. At present, the molecular cross-talk between autophagy and apoptosis has been well discussed, while the relationship between autophagy and programmed necrotic cell death is less understood...
July 1, 2012: Experimental Cell Research
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