Synthesis of a New Phenyl Chlormethine-Quinazoline Derivative, a Potential Anti-Cancer Agent, Induced Apoptosis in Hepatocellular Carcinoma Through Mediating Sirt1/Caspase 3 Signaling Pathway

Frontiers in Pharmacology
Jia-Jia LvZe-Li Yuan

Abstract

Quinazoline derivatives display multiple pharmacological activities and target various biological receptors. Based on the skeleton of quinazoline core, we designed and synthesized three new quinazoline-phenyl chlormethine conjugates (I-III) bearing a Schiff base (C = N) linker, and investigated their anti-tumor effects on HepG2-xenografted tumor and human cancer cell line HepG2. Among these compounds, compound II showed better inhibitory effect against HepG2 cells. In the present study, TUNEL staining, western blot, molecular docking, and siRNA were used to investigate the inhibitory mechanism of compound II towards hepatoma. Compound II inhibited HepG2-xenografted tumor growth in nude mice. Moreover, Compound II not only up-regulated Bax/Bcl-2 ratio and active-caspase 3 level, but also down-regulated Sirt1 expression and its activity, as well as PGC-1α expression. Furthermore, compound II also significantly suppressed the promotion of HepG2 cell proliferation, as evidenced by MTT assay and lactate dehydrogenase (LDH) release assay. Of note, the cytotoxicity of Compound II on HepG2 cells mainly via regulating Sirt1/caspase 3 signaling pathway, consisting with the results in vivo. Intriguingly, z-DEVD-FMK, a caspase 3 inhibitor,...Continue Reading

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Citations

May 9, 2021·Chemical Biology & Drug Design·Poonam YadavAnkur Vaidya

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Methods Mentioned

BETA
xenograft
Protein Assay
transfection
X-ray

Software Mentioned

PyMOL
Autodock Tools ( ADT
Autodock

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