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5-Geranyloxy-7-methoxycoumarin Inhibits Colon Cancer (SW480) Cells Growth by Inducing Apoptosis

5-Geranyloxy-7-methoxycoumarin Inhibits Colon Cancer (SW480) Cells Growth by Inducing Apoptosis

Jaiprakash R Patil, Guddadarangavvanahally K Jayaprakasha, Jinhee Kim, Kotamballi N Chidambara Murthy, Mahadev B Chetti, Sang-Yong Nam, Bhimanagouda S Patil

Planta Med. 2013 Mar;79(3-4):219-26.

PMID: 23345169

Abstract:

For the first time, three coumarins were isolated from the hexane extract of limes (Citrus aurantifolia) and purified by flash chromatography. The structures were identified by NMR (1D, 2D) and mass spectral analyses as 5-geranyloxy-7-methoxycoumarin, limettin, and isopimpinellin. These compounds inhibited human colon cancer (SW-480) cell proliferation, with 5-geranyloxy-7-methoxycoumarin showing the highest inhibition activity (67 %) at 25 µM. Suppression of SW480 cell proliferation by 5-geranyloxy-7-methoxycoumarin was associated with induction of apoptosis, as evidenced by annexin V staining and DNA fragmentation. In addition, 5-geranyloxy-7-methoxycoumarin arrested cells at the G0/G1 phase, and induction of apoptosis was demonstrated through the activation of tumour suppressor gene p53, caspase8/3, regulation of Bcl2, and inhibition of p38 MAPK phosphorylation. These findings suggest that 5-geranyloxy-7-methoxycoumarin has potential as a cancer preventive agent.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP531599	7-Methoxycoumarin		531-59-9	Price

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