385570
Heat Shock Factor 1 Inhibitor, KRIBB11
The Heat Shock Factor 1 Inhibitor, KRIBB11 controls the biological activity of Heat Shock Factor 1.
别名:
Heat Shock Factor 1 Inhibitor, KRIBB11, Hsp70 Induction Inhibitor II, N²-(1H-Indazol-5-yl)-N⁶-methyl-3-nitropyridine-2,6-diamine, HSF1 Inhibitor, KRIBB11, Heat Shock Protein Inhibitor III, p-TEFb hsp70 Promoter Recruitment Inhibitor
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关于此项目
经验公式（希尔记法）:
C13H12N6O2
化学文摘社编号:
分子量:
284.27
UNSPSC Code:
12352200
NACRES:
NA.77
MDL number:
Assay:
≥98% (HPLC)
Form:
solid
Quality level:
Storage condition:
OK to freeze, protect from light
InChI
1S/C13H12N6O2/c1-14-12-5-4-11(19(20)21)13(17-12)16-9-2-3-10-8(6-9)7-15-18-10/h2-7H,1H3,(H,15,18)(H2,14,16,17)
InChI key
NDJJEQIMIJJCLL-UHFFFAOYSA-N
SMILES string
CNC(C=C1)=NC(NC2=CC3=C(NN=C3)C=C2)=C1[N+]([O-])=O
assay
≥98% (HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze, protect from light
color
orange-yellow
solubility
DMSO: 50 mg/mL, brown
shipped in
ambient
storage temp.
−20°C
Quality Level
General description
A cell-permeable 2,6-diaminopyridine compound that interacts with HSF1 (heat shock factor 1) in a reversible manner and prevents HSF1 from recruiting p-TEFb (positive transcription elongation factor b) to the hsp70 promoter site (IC50 ≤3 µM in HCT-116 ChIP assays), a critical step for the p-TEFb CDK9 subunit-catalyzed pol II CTD (RNA polymerase II c-terminal domain) Ser-2 phosphorylation and transcription activation upon heat shock induction (IC50<1, <3, <5, and <10 µM, respectively, against reporter, HSP47, HSP27, and HSP70 transcription in HCT-116 cultures). Reported to exhibit antiproliferation activity against several cancer cultures in vitro (IC50 ranges from 3 to 8 µM) and effectively suppress HCT-116-derived tumor growth in mice in vivo (by 47.4% on day 31; single i.p. dosage of 50 mg/kg on day 13 after cancer implantation). Does not affect TNF-α-induced NF-κB activity in HeLa or heat shock-induced HSF1 ser230 phosphorylation and promoter association in HCT-116 even at concentrations as high as 10 µM.
Packaging
Packaged under inert gas
Preparation Note
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
Other Notes
Yoon, Y.J., et al. 2010. J. Biol. Chem.286, 1737.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Standard Handling (A)
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Young Ju Yoon et al.
The Journal of biological chemistry, 286(3), 1737-1747 (2010-11-17)
Heat shock factor 1 (HSF1) is the master switch for heat shock protein (HSP) expression in eukaryotes. A synthetic chemical library was screened to identify inhibitors of HSF1 using a luciferase reporter under the control of a heat shock element.
Lea Danics et al.
Cancers, 12(9) (2020-09-16)
Modulated electro-hyperthermia (mEHT) is a complementary antitumor therapy applying capacitive radiofrequency at 13.56 MHz. Here we tested the efficiency of mEHT treatment in a BALB/c mouse isograft model using the firefly luciferase-transfected triple-negative breast cancer cell line, 4T1. Tumors inoculated
Csaba András Schvarcz et al.
Cancers, 13(7) (2021-05-01)
Modulated electro-hyperthermia (mEHT) is a selective cancer treatment used in human oncology complementing other therapies. During mEHT, a focused electromagnetic field (EMF) is generated within the tumor inducing cell death by thermal and nonthermal effects. Here we investigated molecular changes
Maruhen Ad Silveira et al.
Life science alliance, 4(5) (2021-02-18)
Master transcription factors control the transcriptional program and are essential to maintain cellular functions. Among them, steroid nuclear receptors, such as the estrogen receptor α (ERα), are central to the etiology of hormone-dependent cancers which are accordingly treated with corresponding
Greg A Timblin et al.
Nature metabolism, 3(5), 618-635 (2021-05-26)
Macrophages generate mitochondrial reactive oxygen species and mitochondrial reactive electrophilic species as antimicrobials during Toll-like receptor (TLR)-dependent inflammatory responses. Whether mitochondrial stress caused by these molecules impacts macrophage function is unknown. Here, we demonstrate that both pharmacologically driven and lipopolysaccharide
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