Yoke, Keong Yong and Jun, Jie Tan and Soek, Sin Teh and Siau, Hui Mah and Cheng, Gwendoline Lian Ee and Hoe, Siong Chiong and Ahmad, Zuraini
(2013)
Clinacanthus nutans Extracts Are Antioxidant with
Antiproliferative Effect on Cultured Human Cancer Cell Lines.
Evidence-Based Complementary and Alternative Medicine, 2013 (462751).
pp. 1-8.
ISSN 1741-427X
Abstract
Clinacanthus nutans Lindau leaves (CN) have been used in traditionalmedicine but the therapeutic potential has not been explored
for cancer prevention and treatment. Current study aimed to evaluate the antioxidant and antiproliferative effects of CN, extracted
in chloroform, methanol, and water, on cancer cell lines. Antioxidant properties of CN were evaluated using DPPH, galvinoxyl,
nitric oxide, and hydrogen peroxide based radical scavenging assays, whereas the tumoricidal effect was tested on HepG2, IMR32,
NCL-H23, SNU-1, Hela, LS-174T, K562, Raji, and IMR32 cancer cells using MTT assay. Our data showed that CN in chloroform
extract was a good antioxidant against DPPH and galvinoxyl radicals, but less effective in negating nitric oxide and hydrogen
peroxide radicals. Chloroformextract exerted the highest antiproliferative effect on K-562 (91.28±0.03%) andRaji cell lines (88.97±
1.07%) at 100
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