Necroptosis

Necroptosis-IN-3 (Cyclohexanecarboxamide, N-(2-thienylmethyl)-) (Compound 69) is a Necroptosis inhibitor that inhibits TNF-α induced necroptosis. Necroptosis-IN-3 (Compound STX1638) also inhibits 11β-HSD1.

Necrostatin-5 (Nec-5) is a selective RIP1 kinase inhibitor and cell necrosis inhibitor that prevents the death of Fadd-deficient Jurkat cells treated with TNF-α, with an EC50 of 240 nM.

CDDO-3P-Im is an orally active inhibitor of necroptosis with chemopreventive effects. CDDO-3P-Im can be used in studies about ischemia/reperfusion.

Apostatin-1 (Apt-1) is a novel TRADD inhibitor that binds to a pocket on the N-terminal TRAF2 binding domain of TRADD.

Necroptosis-IN-1 is a potent necroptosis inhibitor of RIPK1. It is an analog of Necrostatin-1.

Necroptosis-IN-5 (Compound 26) is an orally active inhibitor of necroptotic cell death (necroptosis). This compound also exhibits potent inhibitory activity against receptor-interacting protein kinase 1 (RIPK1). It can be utilized in research related to inflammatory diseases, neurodegenerative disorders, and cancer associated with necroptosis.

Necroptosis-IN-4 is an effective inhibitor of necroptosis, specifically targeting RIP kinase 1 (RIPK1) without inhibitory activity against RIPK3. It exhibits weak inhibitory effects on VEGFR1 2 and PDGFR-α.

TopoisomeraseI II inhibitor 8 (Compound Ru7) is a dual catalytic inhibitor of TopoisomeraseI II that induces DNA damage and activates PARP-1, leading to the activation of RIPK1, RIPK3, and MLKL, ultimately causing necroptosis. It shows significant anticancer activity by effectively targeting cancer cell nuclei and inducing cell death through necroptosis, offering substantial clinical potential in overcoming resistance in cancer treatment.

Anticanceragent 267 (Compound 5q) serves as an activator of RIPK3 and MLKL. It effectively inhibits the proliferation of several cancer cell lines, with IC50 values of 9.79, 10.77, and 5.94 μM for MDA-MB-231, MDA-MB-486, and MCF-7, respectively. The compound induces cell cycle arrest at the subG1 phase and triggers necroptosis in MDA-MB-231 cells. Additionally, Anticanceragent 267 demonstrates antitumor activity in mouse xenograft models.

ZYH-23 is a potent inhibitor of necroptosis. It targets HSP90 to inhibit the phosphorylation of RIPK1, RIPK3, and MLKL, effectively blocking programmed cell necrosis.

Anticancer Agent 146 (Compound 1.19) acts as a necroptosis inducer and demonstrates anti-tumor efficacy in the MDA-MB-231 mouse xenograft model [1].

Necrocide 1 is a potent inducer of cancer cell necrosis that is not inhibited by caspase blockers, anti-apoptotic BCL2 overexpression, or TNFα neutralization at nanomolar concentrations, and acts through the mitochondrial regulatory pathway.

RIP1 kinase inhibitor 5 (example 1) is a potent regulator of tumor immunity, inhibiting RIP1 and similarly to SIR1-365 (compound 13), suppresses necrosis and ferroptosis [2].

RIP1 Kinase Inhibitor 8 (Compound 77), a potent and highly selective dihydropyrazole (DHP) RIP1 kinase inhibitor, exhibits an IC50 of 20 nM and effectively prevents necrotic cell death. It also demonstrates a favorable pharmacokinetic profile across multiple species [1].

Cholicamideβ (compound 6), a self-assembling small molecule cancer vaccine adjuvant, forms low cytotoxicity virus-like particles and upon binding to peptide antigens, enhances dendritic cell-mediated antigen presentation and induces antigen-specific T-cell responses, with the ability to induce apoptosis and necrosis [1].

MLKL-IN-6 (compound P28) is a mixed lineage kinase inhibitor that specifically targets the Mixed Lineage Kinase domain-like (MLKL) protein. It effectively prevents MLKL phosphorylation and oligomerization, which are critical steps in cell necrosis. Additionally, MLKL-IN-6 restrains immune cell death, diminishes adhesion factor expression, exhibits low cytotoxicity, impedes hepatic stellate cell activation, decreases liver fibrosis marker levels, and exerts anti-fibrotic effects [1].

TP4 (Nile tilapia piscidin) is an orally active, piscidin-like antimicrobial peptide that inhibits various gram-positive and gram-negative bacterial strains with a minimum inhibitory concentration (MIC) ranging from 0.03 to 10 μg mL. It demonstrates hemolytic activity and promotes immune response, antioxidant activity, and intestinal health in the presence of bacterial infections. Additionally, TP4 has an anti-tumor effect and induces necrosis in cancer cells by triggering mitochondrial dysfunction [1] [2] [3].

HDL-16 is a highly effective P2Y14R antagonist with anti-colitis effects, targeting P2Y14R in intestinal epithelial cells to alleviate ulcerative colitis.

Glyphosate (Atila) is an herbicide. It also is a possible carcinogen to humans.

Necrostatin-7 (Necrostatin 7) is an inhibitor of necrotic apoptosis with cardioprotective effects, inhibits RANK-NFATc1 signaling, and attenuates macrophage differentiation into osteoblasts.

Chlorhexidine digluconate is a broad-spectrum antiseptic and disinfectant with broad-spectrum antimicrobial activity, inhibits both Gram-positive and Gram-negative bacteria, induces necrosis and apoptosis, and can be used in the study of bacterial infections.

Cholesteryl Hemisuccinate (Cholesterol hydrogen succinate) is a highly soluble cholesterol analogue often used in polar solutions for its hepatoprotective, anticancer and tumour growth inhibiting properties. Cholesteryl Hemisuccinate inhibits the hepatotoxicity of acetaminophen and prevents AAP-induced apoptosis and necrosis in hepatocytes. Cholesteryl Hemisuccinate inhibits DNA polymerase and DNA topoisomerase, thereby inhibiting DNA replication and repair as well as cell division.

Bardoxolone (CDDO) is a synthetic oleanane triterpenoid that blocks the cellular synthesis of inducible nitric oxide synthase and inducible COX-2 in INF-γ-activated mouse macrophages with an IC50 value of 0.4 nM. By suppressing reactive oxygen and nitrogen species (ROS RNS) formation, it promotes the cellular control of ROS RNS levels that would lead to DNA damage associated with tumorigenesis. In various Y cell lines, Bardoxolone has been shown to specifically inhibit proliferation and induce apoptosis. Mechanism studies revealed that Bardoxolone is a ligand for peroxisome proliferator-activated receptor γ, and also that it induces genes regulated by Nrf2, including heme oxygenase-1 and eotaxin-1, which play a role in antioxidant response element signaling activity.

Necrostatin 2 is a necrotic protein and receptor-interacting protein kinase 1 (RIPK1) inhibitor used to study inner ear disorders such as sudden deafness, dizziness and tinnitus.