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- 详细信息
- 技术资料
- 保存条件：
Powder: -20°C, 3 years; 4°C, 2 years.In solvent: -80°C, 6 months; -20°C, 1 month.
- 库存：
货期：1-2天
- 供应商：
MedChemExpress LLC
- CAS号：
1196723-93-9
- 规格：
10 mM * 1 mL/2 mg/5 mg/10 mg/25 mg/50 mg
| 规格： | 10 mM * 1 mL | 产品价格： | ￥1351.0 |
|---|---|---|---|
| 规格： | 2 mg | 产品价格： | ￥1000.0 |
| 规格： | 5 mg | 产品价格： | ￥1250.0 |
| 规格： | 10 mg | 产品价格： | ￥1800.0 |
| 规格： | 25 mg | 产品价格： | ￥3900.0 |
| 规格： | 50 mg | 产品价格： | ￥5600.0 |
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HSF1A
CAS No. : 1196723-93-9
MCE 国际站：HSF1A
产品活性：HSF1A 是一种可渗透细胞的热休克转录因子 1 (HSF1) 活化剂。HSF1A 还充当 TRiC/CCT 的特异性抑制剂。伴侣蛋白 TCP-1 环复合物 (TRiC)/含 TCP-1 的伴侣蛋白 (CCT) 在毒素易位和/或重折叠中起关键作用。
研究领域：Cell Cycle/DNA Damage | Metabolic Enzyme/Protease
作用靶点：HSP
In Vitro: HSF1A protects cells from stress-induced apoptosis, binds TRiC subunits and inhibits TRiC activity without perturbation of ATP hydrolysis. Genetic inactivation or depletion of the TRiC complex results in human HSF1 activation and HSF1A inhibits the direct interaction between purified TRiC and HSF1 in vitro. Moreover, fluorescence anisotropy experiments using FITC coupled to HSF1A demonstrates that HSF1A-FITC binds to a purified Tcp1 subunit of TRiC with an affinity of approximately 600 nM. This is validated qualitatively via titration of purified Tcp1 into binding reactions containing 500 nM Biotin or HSF1A-Biotin. Quantification by counting the number of cell containing aggregates as a function of the total number of cells reveals that at HSF1A concentrations as low as 2 µM, a reduced number of aggregate-containing cells are observed. The fraction of cells containing aggregates continued to decrease in a dose-dependent manner such that pretreatment with 12 µM HSF1A resulta in ~20% of the cells exhibiting aggregates visible by fluorescence microscopy.
In Vivo: HSF1A enhances HSF1 activity, stabilizes HSF1 expression and minimizes Doxorubicin (DOX)-induced cardiac damage. WKY rats are challenged with DOX (accumulated dose: 30 mg/kgw), and DOX combined with HSF1A (100 mg/kgw/day). Supplementation with HSF1A significantly elevates cardiac functions back to the levels of the control group. HSF1A has been shown to stimulate human HSF1 nuclear translocation, elevate protein chaperone expression and ameliorate protein misfolding and cell death in a neurodegenerative disease model. The echocardiographic results show that HSF1A also alleviates DOX-induced failures in cardiac function.
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