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Archives
Ferroptosis
On the Mechanism of Cytoprotection by Ferrostatin-1 and Liproxstatin-1 and the Role of Lipid Peroxidation in Ferroptotic Cell Death
0 views | Dec 23 2019
Zilka O et al. demonstrated that potent RTAs subvert ferroptosis and suggest that lipid peroxidation (autoxidation) may play a central role in the process. [Read the Full Post]
LncRNA FER1L4 induces apoptosis and suppresses EMT and the activation of PI3K/AKT pathway in osteosarcoma cells via inhibiting miR-18a-5p to promote SOCS5
62 views | Oct 03 2019
Ye F et al. indicated thatthe overexpression of FER1L4 promoted apoptosis and inhibited the EMT markers expression and PI3K/AKT signaling pathway activation in OS cells via downregulating miR-18a-5p to promote SOCS5. [Read the Full Post]
On the Mechanism of Cytoprotection by Ferrostatin-1 and Liproxstatin-1 and the Role of Lipid Peroxidation in Ferroptotic Cell Death
0 views | Oct 02 2019
Zilka O et al. demonstrated that potent RTAs subvert ferroptosis and suggest that lipid peroxidation (autoxidation) may play a central role in the process. [Read the Full Post]
RSL3 and Erastin differentially regulate redox signaling to promote Smac mimetic-induced cell death
0 views | Aug 06 2019
Dächert J et al. showed that RSL3/BV6 and Erastin/BV6 differentially regulate redox signaling and cell death in ALL cells. While RSL3/BV6 cotreatment induces ferroptotic cell death, Erastin/BV6 stimulates oxidative cell death independently of iron. These findings have important implications for the therapeutic targeting of redox signaling to enhance Smac mimetic-induced cell death in ALL. [Read the Full Post]
Heme oxygenase-1 accelerates erastin-induced ferroptotic cell death
86 views | Aug 06 2019
Kwon MY et al. showed that hemin and CORM accelerate the HO-1 expression in the presence of Erastin and increase membranous lipid peroxidation. Thus, HO-1 is an essential enzyme for iron-dependent lipid peroxidation during ferroptotic cell death. [Read the Full Post]
Hemin-induced platelet activation and ferroptosis is mediated through ROS-driven proteasomal activity and inflammasome activation: Protection by Melatonin
129 views | May 26 2019
NaveenKumar SK et al. demonstrated an association of platelet activation/ferroptosis with proteasome activity and inflammasome activation. Although, high-throughput screening has recognized ferrostatin-1 (Fer-1) and liproxstatin-1 (Lip-1) as potent ferroptosis inhibitors, having an endogenous antioxidant such as MLT as ferroptosis inhibitor is of high interest. MLT is a well-known chronobiotic hormone that regulates the circadian rhythms in vertebrates. It is also known to exhibit potent antioxidant and ROS quenching capabilities. MLT can regulate fundamental cellular functions by exhibiting cytoprotective, oncostatic, antiaging, anti-venom, and immunomodulatory activities. The ROS scavenging capacity of MLT is key for its cytoprotective and anti-apoptotic properties. Considering the anti-ferroptotic and anti-apoptotic potentials MLT, it could be a promising clinical application to treat hemolytic, thrombotic and thrombocytopenic conditions. Therefore, we propose MLT as a pharmacological and therapeutic agent to inhibit ferroptosis and platelet activation. [Read the Full Post]
MPP+ induces necrostatin-1- and ferrostatin-1-sensitive necrotic death of neuronal SH-SY5Y cells
0 views | May 06 2019
Ito K et al. found that MPP+ predominantly induced non-apoptotic death of neuronally differentiated SH-SY5Y cells. This cell death was strongly inhibited by necrostatin-1 (Nec-1), a necroptosis inhibitor, and by an indole-containing compound (3,3'-diindolylmethane: DIM). However, it occurred independently of receptor-interacting serine/threonine-protein kinase 1/3 (RIP1/RIP3), indicating that this form of cell death was not necroptosis. MPP+-induced cell death was also inhibited by several inhibitors of ferroptosis, including ferrostatin-1 (Fer-1). Although MPP+-induced death and ferroptosis shared some features, such as occurrence of lipid peroxidation and inhibition by Fer-1, MPP+-induced death seemed to be distinct from ferroptosis because MPP+-induced death (but not ferroptosis) was inhibited by Nec-1, was independent of p53, and was accompanied by ATP depletion and mitochondrial swelling. Further investigation of MPP+-induced non-apoptotic cell death may be useful for understanding the mechanisms of neuronal loss and for treatment of neurodegenerative diseases such as Parkinson's disease. [Read the Full Post]
On the Mechanism of Cytoprotection by Ferrostatin-1 and Liproxstatin-1 and the Role of Lipid Peroxidation in Ferroptotic Cell Death
162 views | Apr 30 2019
Zilka O et al. demonstrated that potent RTAs subvert ferroptosis and suggest that lipid peroxidation (autoxidation) may play a central role in the process. [Read the Full Post]
Lipoxygenase-mediated generation of lipid peroxides enhances ferroptosis induced by erastin and RSL3
157 views | Apr 08 2019
Shintoku R et al suggested that tumor ferroptosis is promoted by LOX-catalyzed lipid hydroperoxide generation in cellular membranes. [Read the Full Post]
RSL3 and Erastin differentially regulate redox signaling to promote Smac mimetic-induced cell death
177 views | Feb 25 2019
Dächert J et al. indicated that RSL3/BV6 and Erastin/BV6 differentially regulate redox signaling and cell death in ALL cells. While RSL3/BV6 cotreatment induces ferroptotic cell death, Erastin/BV6 stimulates oxidative cell death independently of iron. These findings have important implications for the therapeutic targeting of redox signaling to enhance Smac mimetic-induced cell death in ALL. [Read the Full Post]
