Date published: 2025-10-15

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Heat Shock Protein Inhibitor I (CAS 218924-25-5)

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Alternate Names:
KNK437; N-Formyl-3,4-methylenedioxy-benzylidine-γ-butyrolactam; Hsp70 Induction Inhibitor I
Application:
Heat Shock Protein Inhibitor I is an HSP 70, HSP 72, and HSP 105 inhibitor
CAS Number:
218924-25-5
Purity:
≥95%
Molecular Weight:
245.23
Molecular Formula:
C13H11NO4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

QUICK LINKS

Heat Shock Protein Inhibitor I is a benzylidene lactam compound that blocks the induction of heat shock proteins. Heat Shock Protein Inhibitor I inhibits HSP 70, HSP 72, and HSP 105. Heat Shock Protein Inhibitor I blocks the development of thermotolerance in a dose-dependent manner. Heat Shock Protein Inhibitor I does not affect the thermosensitivity of nontolerant cells. Heat Shock Protein Inhibitor I does not have an affect on the activities of PKA, PKC, or PTK.


Heat Shock Protein Inhibitor I (CAS 218924-25-5) References

  1. Trimethylamine oxide suppresses stress-induced alteration of organic anion transport in choroid plexus.  |  Villalobos, AR. and Renfro, JL. 2007. J Exp Biol. 210: 541-52. PMID: 17234624
  2. Heat shock proteins play a crucial role in tumor-specific apoptosis by REIC/Dkk-3.  |  Abarzua, F., et al. 2007. Int J Mol Med. 20: 37-43. PMID: 17549386
  3. HSP70, the earliest-induced gene in the zebrafish retina during optic nerve regeneration: its role in cell survival.  |  Nagashima, M., et al. 2011. Neurochem Int. 58: 888-95. PMID: 21338645
  4. KNK437, abrogates hypoxia-induced radioresistance by dual targeting of the AKT and HIF-1α survival pathways.  |  Oommen, D. and Prise, KM. 2012. Biochem Biophys Res Commun. 421: 538-43. PMID: 22521642
  5. The master regulator of the cellular stress response (HSF1) is critical for orthopoxvirus infection.  |  Filone, CM., et al. 2014. PLoS Pathog. 10: e1003904. PMID: 24516381
  6. Heat shock protein 70 induction by valproic acid delays photoreceptor cell death by N-methyl-N-nitrosourea in mice.  |  Koriyama, Y., et al. 2014. J Neurochem. 130: 707-19. PMID: 24773621
  7. Multi-faceted proteomic characterization of host protein complement of Rift Valley fever virus virions and identification of specific heat shock proteins, including HSP90, as important viral host factors.  |  Nuss, JE., et al. 2014. PLoS One. 9: e93483. PMID: 24809507
  8. β-Secretase 1's Targeting Reduces Hyperphosphorilated Tau, Implying Autophagy Actors in 3xTg-AD Mice.  |  Piedrahita, D., et al. 2015. Front Cell Neurosci. 9: 498. PMID: 26778963
  9. Pharmacological or Genetic Activation of Hsp70 Protects against Loss of Parkin Function.  |  Zhang, CW., et al. 2016. Neurodegener Dis. 16: 304-16. PMID: 26886023
  10. Tumor-derived exosomes educate dendritic cells to promote tumor metastasis via HSP72/HSP105-TLR2/TLR4 pathway.  |  Shen, Y., et al. 2017. Oncoimmunology. 6: e1362527. PMID: 29209566
  11. KNK437 restricts the growth and metastasis of colorectal cancer via targeting DNAJA1/CDC45 axis.  |  Yang, S., et al. 2020. Oncogene. 39: 249-261. PMID: 31477839
  12. Oxygen sensing, mitochondrial biology and experimental therapeutics for pulmonary hypertension and cancer.  |  Wu, D., et al. 2021. Free Radic Biol Med. 170: 150-178. PMID: 33450375
  13. Lysophosphatidylcholine exerts an anti-skin photoaging effect via heat shock protein 70 induction.  |  Hwang, H., et al. 2021. J Cosmet Dermatol. 20: 4060-4067. PMID: 33714221

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Heat Shock Protein Inhibitor I, 5 mg

sc-221709
5 mg
$95.00