ire1α

IRE1α kinase-IN-9 (compound 2) is a potent inhibitor of IRE-1α with an average IC50 value of less than 0.1 μM, and it is suitable for research into diseases related to the unfolded protein response or regulated IRE1-dependent decay (RIDD) [1].

IRE1α kinase-IN-8, a benzoheterocyclecarboxaldehyde derivative, is a potent inhibitor of IRE-1α used in research on diseases related to the unfolded protein response and regulated IRE1-dependent decay (RIDD) [1].

IRE1α kinase-IN-1 is a highly selective IRE1α (ERN1) inhibitor, with an IC50 of 77 nM, displaying 100-fold selectivity over the IRE1β isoform. It inhibits ER stress-induced IRE1α oligomerization and autophosphorylation, as well as IRE1α RNase activity (IC50=80 nM).

IRE1α kinase-IN-5 (compound 7) is a potent ATP-competitive inhibitor of IRE1α with a Ki value of 98 nM.

IRE1α kinase-IN-4 (compound 6) is a potent IRE1α inhibitor with a Ki value of 140 nM, functioning as an ATP-competitive ligand for IRE1α [1].

IRE1α kinase-IN-6 is a potent IRE1α inhibitor with an IC50 value of 4.4 nM.

IRE1α kinase-IN-7 is a chemical compound functioning as an inhibitor of IRE1α kinase, primarily utilized in the research of diseases related to endoplasmic reticulum stress.

IRE1α kinase-IN-2 is a highly potent inhibitor of IRE1α kinase, demonstrating an EC50 of 0.82 μM and impeding IRE1α kinase autophosphorylation with an IC50 of 3.12 μM. It also effectively inhibits the splicing of XBP1 mRNA in wild-type cell lines.

IRE1α kinase-IN-3 is a potent, ATP-competitive inhibitor of IRE1α (Ki: 480 nM).

4μ8C (IRE1 Inhibitor III)(IC50=76 nM) is an effective and specific IRE1 Rnase inhibitor.

Toyocamycin (Vengicide) is an adenosine analog produced by Actinomycetes, functioning as an XBP1 inhibitor and inhibiting IRE1α-induced ATP-dependent XBP1 mRNA cleavage (IC50: 80 nM), and induces apoptosis.

1ACTA (IRE1αS-nitrosylation inhibitor) is a compound that helps maintain the endoplasmic reticulum stress response under conditions of nitrosative stress.

MKC8866 is a selective IRE1 RNase inhibitor (IC50: 0.29 μM in human vitro). MKC8866 inhibits IRE1 RNase in breast cancer cells leading to the decreased production of pro-tumorigenic factors and it can inhibit prostate cancer (PCa) tumor growth.

Nur77 modulator 4 (Compound 15h) is a Nur77 inducer with a KD of 0.477 μM. It significantly promotes Nur77 expression and apoptosis, exhibiting excellent growth inhibitory effects on HepG2 and MCF-7 cells, with an IC50 of less than 5 μM. Nur77 modulator 4 activates Nur77-mediated ER stress through the PERK-ATF4 and IRE1 signaling pathways, leading to apoptosis. This compound is applicable in cancer research.

GSK2850163 is a novel inhibitor of inositol-requiring enzyme-1 alpha (IRE1α), effectively inhibiting both its RNase activity and IRE1α kinase activity (IC50s: 200 and 20 nM).

3,6-DMAD dihydrochloride is an acridine derivative and a potent inhibitor of the IRE1α-XBP1s pathway. 3,6-DMAD dihydrochloride can induce IL-6 secretion by exploiting the IRE1α-XBP1s pathway. 3,6-DMAD dihydrochloride is a potent inhibitor of the IRE1α-XBP1s pathway. 3,6-DMAD dihydrochloride has inhibitory effects on IRE1α oligomerization and RNase activity. 3,6-DMAD dihydrochloride can be used in cancer research.

Sunitinib Malate (Sunitinib) is an indolinone-based tyrosine kinase inhibitor. It blocks the tyrosine kinase activities of VEGFR2, PDGFRβ (IC50: 80 2 nM), and c-kit.

6-Bromo-2-hydroxy-3-methoxybenzaldehyde (NSC-95682) is an inhibitor of IRE-1α with an IC50 value of 0.08 μM.

APY29 is an allosteric modulator of IRE1α; inhibits IRE1α autophosphorylation (IC50 = 280 nM) and activates IRE1α RNase activity.

STF-083010 is a selective inhibitor of the IRE1α endonuclease.

KIRA6 is an effective inhibitor of IRE1α RNase kinase (IC50: 0.6 μM). It can trigger an apoptotic response.

GP29 is a Type II kinase inhibitor of the IRE1α endoribonuclease that acts by targeting the ATP-binding pocket of IRE1α.

(E)-2-(2-Chlorostyryl)-3,5,6-trimethylpyrazine (CSTMP) is a stilbene derivative with antioxidant and anticancer activities. It stimulates proliferation of hydrogen peroxide-damaged ECV-304 cells (EC50 = 24.9 nM). CSTMP reduces hydrogen peroxide-induced release of lactate dehydrogenase (LDH) in and increases viability of human umbilical vein endothelial cells (HUVECs) in a concentration-dependent manner via inhibition of apoptosis. It reverses hydrogen peroxide-induced release of malondialdehyde (MDA) and decreases in superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities as well as increases constitutive nitric oxide synthase (cNOS) activity and nitric oxide (NO) production in HUVECs. CSTMP also induces cell death of A549 non-small cell lung cancer (NSCLC) cells in an IRE1α-dependent manner through induction of IRE1α-TRAF2-ASK1 complex-mediated endoplasmic reticulum (ER) stress and mitochondrial apoptosis.

PAIR2 is a potent, selective partial antagonist of IRE1α RNase, effectively occupying the ATP-binding site of IRE1α in cells. This action prevents a potent KIRA from inhibiting XBP1 splicing [1].