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RIP3 or RIPK3

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https://www.readbyqxmd.com/read/28108311/rip1-and-rip3-contribute-to-shikonin-induced-dna-double-strand-breaks-in-glioma-cells-via-increase-of-intracellular-reactive-oxygen-species
#1
Zijian Zhou, Bin Lu, Chen Wang, Zongqi Wang, Tianfei Luo, Meihua Piao, Fankai Meng, Guangfan Chi, Yinan Luo, Pengfei Ge
Shikonin has been reported to induce glioma cell death via necroptosis, a type of programmed necrosis primarily mediated by RIP1 and RIP3. Although RIP1 and RIP3 are found to regulate some features of necrosis such as energy depletion and cellular membrane disruption, it remains unclear whether RIP1 and RIP3 could modulate DNA double strand breaks (DSBs), which is a crucial event leading to chromatinolysis. In this study, we used glioma cell lines and mice model of xenograft glioma to investigate the roles of RIP1 and RIP3 in shikonin-induced DNA DSBs...
January 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28106882/combination-of-iap-antagonist-and-ifn%C3%AE-activates-novel-caspase-10-and-ripk1-dependent-cell-death-pathways
#2
Maria C Tanzer, Nufail Khan, James A Rickard, Nima Etemadi, Najoua Lalaoui, Sukhdeep Kaur Spall, Joanne M Hildebrand, David Segal, Maria Miasari, Diep Chau, WendyWei-Lynn Wong, Mark McKinlay, Srinivas K Chunduru, Christopher A Benetatos, Stephen M Condon, James E Vince, Marco J Herold, John Silke
Peptido-mimetic inhibitor of apoptosis protein (IAP) antagonists (Smac mimetics (SMs)) can kill tumour cells by depleting endogenous IAPs and thereby inducing tumour necrosis factor (TNF) production. We found that interferon-γ (IFNγ) synergises with SMs to kill cancer cells independently of TNF- and other cell death receptor signalling pathways. Surprisingly, CRISPR/Cas9 HT29 cells doubly deficient for caspase-8 and the necroptotic pathway mediators RIPK3 or MLKL were still sensitive to IFNγ/SM-induced killing...
January 20, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28099966/involvement-of-xbp1s-in-blue-light-induced-a2e-containing-retinal-pigment-epithelium-cell-death
#3
Bing Lu, Pengfei Zhang, Minwen Zhou, Wenqiu Wang, Qing Gu, Jingyang Feng, Xueting Luo, Xiangjun Sun, Fenghua Wang, Xiaodong Sun
PURPOSE: Retinal pigment epithelium (RPE) cell dysfunction is essential to the development of retinal degenerative disease. This study was designed to investigate how spliced X-box-binding protein 1 (XBP1s) regulates different modes of RPE cell death in vitro. METHODS: Human ARPE19 cells were incubated with 25 μM N-retinylidene-N-retinylethanolamine (A2E) and irradiated with blue light. Expressions of glucose-regulated protein 78 (GRP78) and XBP1s were detected by real-time quantitative PCR and Western blot...
January 19, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28096356/active-mlkl-triggers-the-nlrp3-inflammasome-in-a-cell-intrinsic-manner
#4
Stephanie A Conos, Kaiwen W Chen, Dominic De Nardo, Hideki Hara, Lachlan Whitehead, Gabriel Núñez, Seth L Masters, James M Murphy, Kate Schroder, David L Vaux, Kate E Lawlor, Lisa M Lindqvist, James E Vince
Necroptosis is a physiological cell suicide mechanism initiated by receptor-interacting protein kinase-3 (RIPK3) phosphorylation of mixed-lineage kinase domain-like protein (MLKL), which results in disruption of the plasma membrane. Necroptotic cell lysis, and resultant release of proinflammatory mediators, is thought to cause inflammation in necroptotic disease models. However, we previously showed that MLKL signaling can also promote inflammation by activating the nucleotide-binding oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome to recruit the adaptor protein apoptosis-associated speck-like protein containing a caspase activation and recruitment domain (ASC) and trigger caspase-1 processing of the proinflammatory cytokine IL-1β...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28088644/tert-butyl-hydroperoxide-t-bhp-induced-apoptosis-and-necroptosis-in-endothelial-cells-roles-of-nox4-and-mitochondrion
#5
Wenwen Zhao, Haitao Feng, Wen Sun, Kang Liu, Jin-Jian Lu, Xiuping Chen
Oxidative stress causes endothelial death while underlying mechanisms remain elusive. Herein, the pro-death effect of tert-butyl hydroperoxide (t-BHP) was investigated with low concentration (50μM) of t-BHP (t-BHPL) and high concentration (500μM) of t-BHP (t-BHPH). Both t-BHPL and t-BHPH induced endothelial cell death was determined. T-BHPL induced caspase-dependent apoptosis and reactive oxygen species (ROS) generation, which was inhibited by N-acetyl-L-cysteine (NAC). Furthermore, NADPH oxidase inhibitor diphenyleneiodonium (DPI), NOX4 siRNA, and NOX4 inhibitor GKT137831 reduced t-BHPL-induced ROS generation while mitochondrial respiratory chain inhibitors rotenone (Rot), 2-thenoyltrifluoroacetone (TTFA), and antimycin A (AA) failed to do so...
January 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/28087739/tnf-signaling-through-rip1-kinase-enhances-sn38-induced-death-in-colon-adenocarcinoma
#6
Lucia Cabal-Hierro, Peter J O'Dwyer
: Elucidation of tumor necrosis factor (TNF)-directed mechanisms for cell death induction and maintenance of tumor growth has revealed a role for receptor-interacting protein kinases 1 and 3 (RIPK1/RIP1 and RIPK3/RIP3), components of the necrosome complex, as determinants of cell fate. Here the participation of TNF signaling was analyzed with regard to the cytotoxic action of different DNA damaging agents in a panel of colon cancer cells. While most of these cell lines were insensitive to TNF, combination with these drugs increased sensitivity by inducing cell death and DNA damage, especially in the case of the topoisomerase inhibitor SN38...
January 13, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28077640/viral-rna-at-two-stages-of-reovirus-infection-is-required-for-the-induction-of-necroptosis
#7
Angela K Berger, Bradley E Hiller, Deepti Thete, Anthony J Snyder, Encarnacion Perez, Jason W Upton, Pranav Danthi
: Necroptosis, a regulated form of necrotic cell death requires the activation of the RIP3 kinase. Here, we identify that infection of host cells with reovirus can result in necroptosis. We find that necroptosis requires sensing of the genomic RNA within incoming virus particles via cytoplasmic RNA sensors to produce type I IFN. While these events that occur prior to de novo synthesis of viral RNA are required for induction of necroptosis, they are not sufficient. Induction of necroptosis also requires late stages of reovirus infection...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28069136/the-inflammatory-signal-adaptor-ripk3-functions-beyond-necroptosis
#8
K Moriwaki, F K-M Chan
Receptor interacting protein kinase 3 (RIPK3) is an essential serine/threonine kinase for necroptosis, a type of regulated necrosis. A variety of stimuli can cause RIPK3 activation through phosphorylation. Activated RIPK3 in turn phosphorylates and activates the downstream necroptosis executioner mixed lineage kinase domain-like (MLKL). Necroptosis is a highly inflammatory type of cell death because of the release of intracellular immunogenic contents from disrupted plasma membrane. Indeed, RIPK3-deficient mice exhibited reduced inflammation in many inflammatory disease models...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28065786/cisplatin-induced-necroptosis-in-tnf%C3%AE-dependent-and-independent-pathways
#9
Yanfang Xu, Hua-Bin Ma, Yu-Lu Fang, Zhi-Rong Zhang, Jing Shao, Mao Hong, Chao-Jun Huang, Jing Liu, Rui-Qing Chen
Cisplatin is a chemotherapeutic drug for treatment of many solid tumors. It has been shown to induce apoptosis and/or necrosis in different types of cancer cells. However, the underlying mechanisms remain elusive. In this study, we provide evidences that cisplatin induces necroptosis in receptor-interacting protein 3 (RIP3)-expressing cell lines, but not in cell lines lacking RIP3 protein expression. Deficiency of core components of necroptotic pathway, RIP1, RIP3, or mixed lineage kinase domain-like protein (MLKL) blocked cisplatin-induced cell death in L929 cells...
January 6, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28060376/induction-of-necroptotic-cell-death-by-viral-activation-of-the-rig-i-or-sting-pathway
#10
Suruchi N Schock, Neha V Chandra, Yuefang Sun, Takashi Irie, Yoshinori Kitagawa, Bin Gotoh, Laurent Coscoy, Astar Winoto
Necroptosis is a form of necrotic cell death that requires the activity of the death domain-containing kinase RIP1 and its family member RIP3. Necroptosis occurs when RIP1 is deubiquitinated to form a complex with RIP3 in cells deficient in the death receptor adapter molecule FADD or caspase-8. Necroptosis may play a role in host defense during viral infection as viruses like vaccinia can induce necroptosis while murine cytomegalovirus encodes a viral inhibitor of necroptosis. To see how general the interplay between viruses and necroptosis is, we surveyed seven different viruses...
January 6, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28059467/muty-dna-glycosylase-protects-cells-from-tumor-necrosis-factor-alpha-induced-necroptosis
#11
An Hue Vy Tran, Se Hee Han, Joon Kim, Francesca Grasso, Ye Sun Han
Numerous studies have implied that mutY DNA glycosylase (MYH) is involved in the repair of post-replicative mispairs and plays a critical role in the base excision repair pathway. Recent in vitro studies have shown that MYH interacts with tumor necrosis factor receptor type 1-associated death domain (TRADD), a key effector protein of tumor necrosis factor receptor-1 (TNFR1) signaling. The association between MYH and TRADD is reversed during tumor necrosis factor alpha (TNF-α)- and camptothecin (CPT)-induced apoptosis, and enhanced during TNF-α-induced survival...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28039150/the-effects-and-regulatory-mechanism-of-rip3-on-rgc-5-necroptosis-following-elevated-hydrostatic-pressure
#12
Lei Shang, Wei Ding, Na Li, Lvshuang Liao, Dan Chen, Jufang Huang, Kun Xiong
Necroptosis is a type of regulated cell death that has been implicated in various diseases. Receptor-interacting protein 3 (RIP3), a member of the RIP family, is an important mediator of the necroptotic pathway. Cleavage of RIP3 at Asp328 by caspase-8 abolishes the kinase activity of RIP3, which is critical for necroptosis. Moreover, RIP3 is significantly upregulated during the early stages of acute high intra-ocular pressure and oxygen glucose deprivation. In this study, the effects of RIP3 during elevated hydrostatic pressure (EHP) were investigated and the possible mechanism through which caspase-8 regulated RIP3 cleavage was explored...
December 29, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28025046/camkii-is-a-nodal-signal-for-multiple-programmed-cell-death-pathways-in-heart
#13
Ning Feng, Mark E Anderson
Sustained Ca(2+)/calmodulin dependent kinase II (CaMKII) activation plays a central role in the pathogenesis of a variety of cardiac diseases. Emerging evidence suggests CaMKII evoked programmed cell death, including apoptosis and necroptosis, is one of the key underlying mechanisms for the detrimental effect of sustained CaMKII activation. CaMKII integrates β-adrenergic, Gq coupled receptor, reactive oxygen species (ROS), hyperglycemia, and pro-death cytokine signaling to elicit myocardial apoptosis by intrinsic and extrinsic pathways...
December 23, 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28004776/a20-curtails-primary-but-augments-secondary-cd8-t-cell-responses-in-intracellular-bacterial-infection
#14
Sissy Just, Gopala Nishanth, Jörn H Buchbinder, Xu Wang, Michael Naumann, Inna Lavrik, Dirk Schlüter
The ubiquitin-modifying enzyme A20, an important negative feedback regulator of NF-κB, impairs the expansion of tumor-specific CD8(+) T cells but augments the proliferation of autoimmune CD4(+) T cells. To study the T cell-specific function of A20 in bacterial infection, we infected T cell-specific A20 knockout (CD4-Cre A20(fl/fl)) and control mice with Listeria monocytogenes. A20-deficient pathogen-specific CD8(+) T cells expanded stronger resulting in improved pathogen control at day 7 p.i. Imaging flow cytometry revealed that A20-deficient Listeria-specific CD8(+) T cells underwent increased apoptosis and necroptosis resulting in reduced numbers of memory CD8(+) T cells...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28004006/the-different-effects-of-atorvastatin-and-pravastatin-on-cell-death-and-parp-activity-in-pancreatic-nit-1-cells
#15
Ya-Hui Chen, Yi-Chun Chen, Chin-San Liu, Ming-Chia Hsieh
Statins have been widely used drugs for lowering low-density lipoprotein and for preventing heart attack and stroke. However, the increased risk for developing diabetes during extended stain use and the molecular mechanisms remain unclear. The objective of this study was to elucidate the signaling pathway and biological function between necrosis and autophagy induced by atorvastatin (AS) and pravastatin (PS). Here we observed that atorvastatin (AS) can increase intracellular reactive oxygen species (ROS) and induce necrotic cell death and autophagy in NIT-1 cells, whereas pravastatin (PS) does not cause ROS and cell death but also induces autophagy...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27999438/necroptosis-in-development-inflammation-and-disease
#16
Ricardo Weinlich, Andrew Oberst, Helen M Beere, Douglas R Green
In the early 2000s, receptor-interacting serine/threonine protein kinase 1 (RIPK1), a molecule already recognized as an important regulator of cell survival, inflammation and disease, was attributed an additional function: the regulation of a novel cell death pathway that came to be known as necroptosis. Subsequently, the related kinase RIPK3 and its substrate mixed-lineage kinase domain-like protein (MLKL) were also implicated in the necroptotic pathway, and links between this pathway and apoptosis were established...
December 21, 2016: Nature Reviews. Molecular Cell Biology
https://www.readbyqxmd.com/read/27999433/insane-in-the-membrane-a-structural-perspective-of-mlkl-function-in-necroptosis
#17
REVIEW
Emma J Petrie, Joanne M Hildebrand, James M Murphy
Necroptosis (or 'programmed necrosis') is a caspase-independent cell death pathway that operates downstream of death receptors, including Tumour Necrosis Factor Receptor-1 (TNFR1), and the Toll-like receptors, TLR3 and TLR4. Owing to its immunogenicity, necroptosis has been attributed roles in the pathogenesis of several diseases, including inflammatory bowel disease and the tissue damage arising from ischemic-reperfusion injuries. Only over the past 7 years has the core machinery of this pathway, the receptor-interacting protein kinase-3 (RIPK3) and the pseudokinase, Mixed Lineage Kinase domain-Like (MLKL), been defined...
December 21, 2016: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27984090/rip3-antagonizes-a-tsc2-mediated-pro-survival-pathway-in-glioblastoma-cell-death
#18
Gregory Fettweis, Emmanuel Di Valentin, Laurent L'homme, Cédric Lassence, Franck Dequiedt, Marianne Fillet, Isabelle Coupienne, Jacques Piette
Glioblastomas are the deadliest type of brain cancer and are frequently associated with poor prognosis and a high degree of recurrence despite removal by surgical resection and treatment by chemo- and radio-therapy. Photodynamic therapy (PDT) is a treatment well known to induce mainly necrotic and apoptotic cell death in solid tumors. 5-Aminolevulinic acid (5-ALA)-based PDT was recently shown to sensitize human glioblastoma cells (LN-18) to a RIP3 (Receptor Interacting Protein 3)-dependent cell death which is counter-acted by activation of autophagy...
October 27, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27974745/mechanisms-of-ripk3-induced-inflammation
#19
REVIEW
Inbar Shlomovitz, Sefi Zargrian, Motti Gerlic
Receptor-interacting protein kinase 3 (RIP3/RIPK3) is a multifunctional regulator of cell death and inflammation. It controls signalling downstream of the tumor necrosis factor (TNF) receptor family, DNA-dependent activator of IFN-regulatory factors (DAI) and toll-like receptors (TLRs). Today, it is also widely recognized as a component of caspase-independent cell death known as necroptosis, and cytokine production via activation of the inflammasome. Its role in inflammasome activation, in particular, make the interpretation of its role in vivo more complex...
January 3, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27959630/necroptosis-mechanisms-and-relevance-to-disease
#20
Lorenzo Galluzzi, Oliver Kepp, Francis Ka-Ming Chan, Guido Kroemer
Necroptosis is a form of regulated cell death that critically depends on receptor-interacting serine-threonine kinase 3 (RIPK3) and mixed lineage kinase domain-like (MLKL) and generally manifests with morphological features of necrosis. The molecular mechanisms that underlie distinct instances of necroptosis have just begun to emerge. Nonetheless, it has already been shown that necroptosis contributes to cellular demise in various pathophysiological conditions, including viral infection, acute kidney injury, and cardiac ischemia/reperfusion...
December 5, 2016: Annual Review of Pathology
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