Tropical Journal of Pharmaceutical Research

Original Research Article | OPEN ACCESS

Improved Antitumoral Activity of Extracts Derived from Cultured Penicillus dumetosus

Rosa Moo Puc^1,2, Daniel Robledo¹, Yolanda Freile Pelegrin¹

¹Department of Marine Resources; Cinvestav, Km 6 Carretera Antigua a Progreso, Cordemex, 97310, A.P. 73, Mérida, Yuc; ²Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad, Centro Médico Ignacio García Téllez, Instituto Mexicano del Seguro Social; 41 No 439 x 32 y 34, Col. Industrial CP 97150, Mérida, Yuc., México.

For correspondence:- Yolanda Pelegrin Email: freile@mda.cinvestav.mx Tel:+529999429459

Received: 7 October 2010 Accepted: 31 January 2011 Published: 20 April 2011

Citation: Puc RM, Robledo D, Pelegrin YF. Improved Antitumoral Activity of Extracts Derived from Cultured Penicillus dumetosus. Trop J Pharm Res 2011; 10(2):177-185 doi: 10.4314/tjpr.v10i2.9

© 2011 The authors.
This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited..

Abstract

Purpose: Extracts of the green alga, Penicillus dumetosus, have shown antiproliferative activity against several cancer cell lines. The aim of this study was to evaluate if this activity is modified after cultivation.

Methods: P. dumetosus was cultured under different light treatments. After 10, 20 and 30 days, alga samples were collected and their organic extracts prepared. Lipid and phenol contents were evaluated by standardized methods. Antiproliferative activity was assayed in four cancer cell lines (Hep-2, HeLa, SiHa, and KB) while cytotoxic activity was evaluated on a normal cell line (MDCK).

Results: The 10-day cultivation organic extract exhibited increased antiproliferative activity compared with the control on human carcinoma nasopharynx (KB) and laryngeal (Hep-2) cell lines. The inhibition of cell growth (IC₅₀) of 20- and 30-day extracts decreased compared with the control, except for KB. This activity was related to induction of apoptosis as evidenced by DNA fragmentation. All the extracts showed low cytotoxicity. Total phenol content in the organic extracts did not change during cultivation; however, polyunsaturated fatty acid content was modified under different light treatments.

Conclusion: The 10-day cultivation extract from P. dumetosus culture under conditions described in this study showed increased antiproliferative activity compared with the control and induced apoptosis on SiHa, HeLa, Hep-2 and KB cells.

Keywords: Antiproliferative, Cancer cell lines, Bioactivity, Cytotoxicity, Green alga, Penicillus dumetosus