S Mashjoor1, M Yousefzadi1. 1. Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas, Iran.
Abstract
BACKGROUND: Pharmaceutical industries around the world are struggling for finding new approaches to fight cancer and many researchers are involved in this process to find new drug candidates. AIMS: The current study aimed at investigating the new marine natural products with anticancer potential from the three Persian Gulf Holothuria sea cucumbers. METHODS: We evaluated the cytotox activity of different organs of three Holothuria sea cucumbers species (H. scabra, H. parva, and H. leucospilota) using organic extract (OE): n-Hexane (nH), ethyl acetate (E), and methanol (M). Cytotoxicity potential of three fractions was estimated using two toxicity models: brine shrimp (Artemia salina) lethality assay (BSA) and tetrazolium-based colorimetric assay (MTT) assay in human cancer cell lines (MCF-7( and normal cell lines (HeLa). RESULTS: The data illustrated that toxicity depends on concentration but BSA was highest for the M extracts of cuvierian tubules (CT) organs of H. leucospilota (up to 95% at 1000 µg/ml, LC50 = 616.4 μg/ml) and respiratory tree (RT) organs of H. parva (up to 86% at 1000 µg/ml, LC50 = 607.2 μg/ml). Based on cell lines, the more effective extracts were noticed for E fractions of CT organs of H. leucospilota (up to 85% at 250 µg/ml, LC50 = 37.25 μg/ml) against MCF-7 and for E extracts of intestine tract (IT) organs of H. parva (up to 80% at 250 µg/ml, LC50 = 46.25 μg/ml) against HeLa cells. This variation indicates that the possible cytotoxic compounds in fractions are selective toxicity toward cell lines. CONCLUSION: The data demonstrated that Holothuria species are an interesting source for discovery of drugs.
BACKGROUND: Pharmaceutical industries around the world are struggling for finding new approaches to fight cancer and many researchers are involved in this process to find new drug candidates. AIMS: The current study aimed at investigating the new marine natural products with anticancer potential from the three Persian Gulf Holothuria sea cucumbers. METHODS: We evaluated the cytotox activity of different organs of three Holothuria sea cucumbers species (H. scabra, H. parva, and H. leucospilota) using organic extract (OE): n-Hexane (nH), ethyl acetate (E), and methanol (M). Cytotoxicity potential of three fractions was estimated using two toxicity models: brine shrimp (Artemia salina) lethality assay (BSA) and tetrazolium-based colorimetric assay (MTT) assay in human cancer cell lines (MCF-7( and normal cell lines (HeLa). RESULTS: The data illustrated that toxicity depends on concentration but BSA was highest for the M extracts of cuvierian tubules (CT) organs of H. leucospilota (up to 95% at 1000 µg/ml, LC50 = 616.4 μg/ml) and respiratory tree (RT) organs of H. parva (up to 86% at 1000 µg/ml, LC50 = 607.2 μg/ml). Based on cell lines, the more effective extracts were noticed for E fractions of CT organs of H. leucospilota (up to 85% at 250 µg/ml, LC50 = 37.25 μg/ml) against MCF-7 and for E extracts of intestine tract (IT) organs of H. parva (up to 80% at 250 µg/ml, LC50 = 46.25 μg/ml) against HeLa cells. This variation indicates that the possible cytotoxic compounds in fractions are selective toxicity toward cell lines. CONCLUSION: The data demonstrated that Holothuria species are an interesting source for discovery of drugs.
Authors: Nguyen Hai Dang; Nguyen Van Thanh; Phan Van Kiem; Le Mai Huong; Chau Van Minh; Young Ho Kim Journal: Arch Pharm Res Date: 2007-11 Impact factor: 4.946