Astaxanthin from shrimp efficiently modulates oxidative stress and allied cell death progression in MCF-7 cells treated synergistically with β-carotene and lutein from greens.

Sowmya, Poorigali Raghavendra and Prabhasankar, P. and Arathi, K. and Baskaran, V. and Rangaswamy, Lakshminarayana (2017) Astaxanthin from shrimp efficiently modulates oxidative stress and allied cell death progression in MCF-7 cells treated synergistically with β-carotene and lutein from greens. Food and Chemical Toxicology, 106. pp. 58-69. ISSN 0278-6915

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Abstract

This study investigated the synergistic efficacy of keto-carotenoid astaxanthin (AST, from shrimp) plus hydrocarbon (β-carotene, BC) and hydroxyl (lutein, L) carotenoids (from greens) on molecular events in MCF-7 cells. MCF-7 cells were treated with either of carotenoid (20 μM, AST or BC or L) separately or the mixture of them (an equimolar concentration of carotenoids mixture, CM) or saponified carotenoid extract from shrimp (SSCE) for 48 h and analyzed cellular uptake, cytotoxicity, and apoptosis. The IC50 and combination-index values of AST co-treatment with a lower concentration of BC and L (5 μM) exhibited enhanced cytotoxicity and oxidative stress as compared with individual carotenoids or SSCE. Further, higher cellular uptake/accumulation of AST along with BC and L found to synergistically induce apoptosis through modulation of cyclin D1, p53, Bax and Bcl-2 expressions by arresting cell cycle at G0/G1 phase. Further, CM or SSCE treatments are unlikely to affect proliferation of normal breast epithelial cells (MCF-10A). The results of selective killing of MCF-7 cells demonstrated a greater insight on the synergistic effect of shrimp AST plus BC and L. It is concluded that consumption of shrimp along with green leafy vegetables helps in combating cancer chemoprevention.

Item Type:	Article
Uncontrolled Keywords:	Cytotoxicity; Lutein; MCF-7 cells proliferation; Shrimp astaxanthin; Synergism; β-Carotene
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 14 Carotenoid Chemistry 600 Technology > 08 Food technology > 28 Meat, Fish & Poultry > Fish
Divisions:	Dept. of Biochemistry Flour Milling Bakery and Confectionary Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	18 Jan 2018 06:13
Last Modified:	18 Jan 2018 06:13
URI:	http://ir.cftri.res.in/id/eprint/13300

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