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In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
First procaspase-activating compound (PAC-1) is a small-molecule activator of procaspase-3 that directly catalyzes the maturation of procaspase-3 to the active caspase-3 by inducing the cleavage of procaspase-3 in a time-dependent manner. As a result of the direct and immediate activation of procaspase-3, PAC-1 potently induces apoptosis in cancer cell lines. The PAC-1 induced apoptosis has been observed to be proportional to the concentrations of procaspase-3 inside the cells of primary colon cancer isolates. Study results have demonstrated that PAC-1 is able to induce cell death in both primary cancerous cells and adjacent normal tissues with 50% inhibition concentration IC50 values ranging from 0.003 to 1.41 μM and 5.02 to 9.98 μM respectively.
Reference
Putt KS, Chen GW, Pearson JM, Sandhorst JS, Hoagland MS, Kwon JT, Hwang SK, Jin H, Churchwell MI, Cho MH, Doerge DR, Helferich WG, Hergenrother PJ. Small-molecule activation of procaspase-3 to caspase-3 as a personalized anticancer strategy. Nat Chem Biol. 2006 Oct;2(10):543-50. Epub 2006 Aug 27.
Cell lines
Several cancer cell lines (leukemia, lymphoma, melanoma, neuroblastoma, breast cancer, lung cancer, adrenal cancer and renal cancer)
Preparation method
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20 °C for several months.
Reaction Conditions
72 hrs
Applications
PAC-1 induces cell death in a procaspase-3-dependant manner. PAC-1 is most potent against the lung cancer cell line NCI-H226, with an IC50 value of 0.35 μM.
Animal models
Mice s.c. injected with NCI-H226 (lung cancer) cells
Dosage form
0, 50 or 100 mg/kg; p.o.; q.d., for 21 days
In mice s.c. injected with NCI-H226 (lung cancer) cells, PAC-1 significantly retarded tumor growth in a dose-dependent manner.
Other notes
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.
References:
[1]. Putt KS, Chen GW, Pearson JM, Sandhorst JS, Hoagland MS, Kwon JT, Hwang SK, Jin H, Churchwell MI, Cho MH, Doerge DR, Helferich WG, Hergenrother PJ. Small-molecule activation of procaspase-3 to caspase-3 as a personalized anticancer strategy. Nat Chem Biol. 2006 Oct;2(10):543-50. Epub 2006 Aug 27.
