SNX-5422 (PF-04929113), a prodrug of SNX-2112, is an orally active Hsp90 inhibitor, with a Kd of 41 nM, and also induces Her-2 degradation, with an IC50 of 37 nM.
Col003 is a potent inhibitor of Hsp47, competitively binds to the collagen binding site on Hsp47 (IC50, 1.8 μM), and inhibits collagen secretion by destabilizing the collagen triple helix[1].
Tamoxifen is a selective estrogen receptor modulator (SERM) which blocks estrogen action in breast cells and can activate estrogen activity in other cells, such as bone, liver, and uterine cells.
KNK437 is a HSP inhibitor, and inhibits the induction of HSP105, HSP70, and HSP40.
Retaspimycin Hydrochloride is a potent and water-soluble inhibitor of Hsp90 with EC50s of 119 nM for both Hsp90 and Grp9.
Palmitic acid-d2-1 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
Onalespib (AT13387) is a potent inhibitor of Hsp90, with a Kd of 0.71 nM.
Palmitic acid-d2-4 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
MAO A/HSP90-IN-2 (compound 4-C) is a dual inhibitor of HSP90and MAO A with the IC50 values of 0.016 and 4.58 μM, respectively. MAO A/HSP90-IN-2 increases HSP70 expression and reduces HER2 and phospho-Akt expression, and decreases IFN-γ induced PD-L1 expression in GL26 cells. MAO A/HSP90-IN-2 inhibits the growth of Temozolomide (HY-17364) -sensitive and -resistant GBM cells, colon cancer, leukemia, non-small cell lung and other cancers, and has potential to inhibit tumor immune escape[1].
Displurigen (NSC375009) disrupts human embryonic stem cell pluripotency by targeting HSPA8. Displurigen inhibits ATPase activity of HSP70 (IC50 = 225 μM)[1].
Palmitic acid-d9 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
GRP78-IN-3 is a selective Grp78 (HSPA5) inhibitor with an IC50 of 0.59 μM. GRP78-IN-3 is 7-fold selective for HspA5 compared to HspA9 (IC50 of 4.3 μM) and >20-fold selective for HspA5 compared to HspA2 (IC50 of 13.9 μM)[1].
Hsp90-IN-15 is an Hsp90 inhibitor with anticancer activity. Hsp90-IN-15 induces cell apoptosis, arrests the cell cycle at S phase and decreases the expression level of Hsp90 in Hela cell[1].
AT-533 is a potent Hsp90 and HSV inhibitor. AT-533 suppresses tumor growth and angiogenesis by blocking the HIF-1α/VEGF/VEGFR-2 signaling pathway. AT-533 also inhibits the activation of the downstream pathways, including Akt/mTOR/p70S6K, Erk1/2 and FAK. AT-533 inhibits the tube formation, cell migration, and invasion of human umbilical vein endothelial cells (HUVECs)[1][2][3].
Hexadecanoate-13C16 potassium is the 13C-labeled Hexadecanoate sodium. Hexadecanoate-13C16 potassium can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
Falcarinol (Panaxynol) is a natural, orally active Hsp90 inhibitor targeting both the N-terminal and C-terminal of Hsp90 with limited toxicities. Falcarinol (Panaxynol) induces apoptosis[1].
Conglobatin (FW-04-806), a macrolide dilactone, is isolated from the culture of Streptomyces conglobatus. Conglobatin is an orally active Hsp90 inhibitor. Conglobatin can bind to the N-terminal domain of Hsp90 and disrupt Hsp90-Cdc37 complex formation. Conglobatin induces apoptosis in human breast cancer cells and esophageal squamous cell carcinoma cells, and exhibits antitumor activity in vivo[1][2][3].
6BrCaQ is a potent mitochondrial heat shock protein TRAP1 inhibitor, with antiproliferative activity. 6BrCaQ can be used in the synthesis of 6BrCaQ-TPP conjugates[1].
Palmitic acid-d4-2 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
KU-177 is a potent inhibitor of Hsp90 ATPase homologue 1 (Aha1), ablates Aha1-driven enhancement of Hsp90-dependent tau aggregation. KU-177 also disrupts Aha1/Hsp90 interactions (IC50=4.08 μM) without inhibition of Hsp90’s ATPase activity. KU-177 can be used for tauopathies research[1][2].
Malonganenone A is a selective plasmodial Hsp70s modulator. It also has antimalarial activity.
KW-2478 is an inhibitor of Hsp90α, with an IC50 of 3.8 nM, and has antitumor activity against various human hematological tumor cells.
Palmitic acid-13C16 sodium is the 13C-labeled Palmitic acid sodium. Palmitic acid sodium is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid sodium can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
BIIB021 is an orally available, fully synthetic inhibitor of HSP90 with Ki and EC50 of 1.7 nM and 38 nM, respectively.
17-AAG is a potent HSP90 inhibitor with an IC50 of 5 nM, having a 100-fold higher binding affinity for tumour cell derived HSP90 than normal cell derived HSP90.
SEW84 (SEW04784) is a first-in-class, specific inhibitor of the Aha1-stimulated Hsp90 (ASH) ATPase activity (IC50=0.3 uM) without inhibiting basal Hsp90 ATPase;SEW84 binds to the C-terminal domain of Aha1 (Kd=1.7 uM) to weaken its asymmetric binding to Hsp90.SEW84 inhibited the GR- and AR-dependent luciferase expression with IC50 of 1.3 uM and 0.7 uM respectively.SEW84 blocks Aha1-dependent Hsp90 chaperoning activities, including the in vitro and in vivo refolding of firefly luciferase, and the transcriptional activity of the androgen receptor in cell-based models of prostate cancer.SEW84 promotes the clearance of phosphorylated tau in cellular and tissue models of neurodegenerative tauopathy.
Kongensin A is a natural product isolated from Croton kongensis. Kongensin A is an effective, covalent HSP90 inhibitor that blocks RIP3-dependent necroptosishas. Kongensin A is a potent necroptosis inhibitor and an apoptosis inducer. Kongensin A has potential anti-necroptosis and anti-inflammation applications[1].
Shepherdin (79-87) is amino acids 79 to 87 fragment of Shepherdin. Shepherdin is a peptidomimetic antagonist of the complex between Hsp90 and Survivin. Anticancer activity[1].
JG-231 is an allosteric inhibitor that disrupts the Hsp70-BAG3 interaction (Ki=0.11 uM), inhibits breast cancer cells MCF-7 and MDA-MB-231 with IC50 of 0.12 and 0.25 uM, respectively; reduces tumor burden in an MDA-MB-231 xenograft model (4 mg/kg, ip).
NCT-58 is a potent inhibitor of C-terminal HSP90. NCT-58 does not induce the heat shock response (HSR) due to its targeting of the C-terminal region and elicits anti-tumor activity via the simultaneous downregulation of HER family members as well as inhibition of Akt phosphorylation. NCT-58 kills Trastuzumab-resistant breast cancer stem-like cells. NCT-58 induces apoptosis in HER2-positive breast cancer cells[1].