Exploring Mitochondria-Mediated Intrinsic Apoptosis by New Phytochemical Entities: An Explicit Observation of Cytochrome c Dynamics on Lung and Melanoma Cancer Cells

Hydnocarpin (Hy) is a flavonoid isolated and purified from the seeds of Hydnocarpus wightiana Blume. Herein, we have developed a built-in semi-synthetic modification on Hy by one-pot multi-component reaction and a [3 + 2] cycloaddition strategy to append five membered isoxazole and isoxazolone as ne...

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Bibliographic Details
Published in:Journal of medicinal chemistry 2019-09, Vol.62 (17), p.8311-8329
Main Authors: Arya, Jayadev S, Joseph, Manu M, Sherin, Daisy R, Nair, Jyothi B, Manojkumar, Thanathu K, Maiti, Kaustabh K
Format: Article
Language:English
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Summary:Hydnocarpin (Hy) is a flavonoid isolated and purified from the seeds of Hydnocarpus wightiana Blume. Herein, we have developed a built-in semi-synthetic modification on Hy by one-pot multi-component reaction and a [3 + 2] cycloaddition strategy to append five membered isoxazole and isoxazolone as new phytochemical entities (NPCEs). Two selected NPCEs viz Hy-ISO-VIII and Hy-ISO-G from the library of 20 newly synthesized derivatives after in vitro screening unveiled promising cytotoxicity and induced caspase-mediated apoptosis against the human lung and melanoma cancer cells which were well supported by virtual screening based on ligand binding affinity and molecular dynamic simulations. As a new insight, we introduced surface-enhanced Raman spectroscopy to identify the chemo-marker molecular fingerprint to confirm the cellular uptake, cytochrome c release, and DNA fragmentation in a label-free manner. The present findings throw up a surfeit of seminal reasons behind the semi-synthetic modification of Hy, stepping forward to cancer chemotherapy.
ISSN:0022-2623
1520-4804
DOI:10.1021/acs.jmedchem.9b01098