inositol requiring enzyme 1

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

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.

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.

GSK2850163 (S enantiomer) is the inactive enantiomer of GSK2850163. GSK2850163 is an novel inhibitor of inositol-requiring enzyme-1 alpha (IRE1a).

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).

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.

Sunitinib (SU 11248) is a multi-targeted receptor tyrosine kinase (RTK) inhibitor that inhibits VEGFR2 and PDGFRβ (IC50=80 2 nM). It exhibits antitumor activity and is used for treating kidney cancer and gastrointestinal tumors.

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.

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).

Soluble epoxide hydrolase (sEH) PROTAC 1a is a proteolysis-targeting chimera (PROTAC) comprising a cereblon ligand linked to the sEH inhibitor t-TUCB via a linker, promoting selective sEH degradation and inhibiting its hydrolase activity (IC50 = 0.8 nM) significantly more than its phosphatase activity (IC50 = >10,000 nM). This compound preferentially targets cytosolic sEH for lysosomal rather than proteasomal degradation. Furthermore, it mitigates thapsigargin-induced upregulation of phosphorylated inositol-requiring enzyme 1α (IRE1α) and X-box binding protein 1 (XBP1) splicing in HepG2 and 293T cells, thereby reducing endoplasmic reticulum stress.

Kira8 (AMG-18) is a mono-selective IRE1α inhibitor that allosterically attenuates IRE1α RNase activity with an IC50 of 5.9 nM.

MKC3946 is an effective and soluble IRE1α inhibitor which triggered modest growth inhibition in multiple myeloma cell lines.

MKC9989 is an inhibitor of Hydroxy aryl aldehydes (HAA). MKC9989 also inhibits IRE1α with an IC50 of 0.23 to 44 μM.

IXA4 is a highly selective, nontoxic activator of IRE1 XBP1s and reduces APP secretion by activating IRE1. IXA4-stimulated IRE1 activation also enhanced pancreatic function.