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Antioxidative, cytotoxic, and anti-metastatic potentials of Laurencia obtusa and Ulva lactuca seaweeds

Asian Pacific Journal of Tropical Biomedicine 2021年第7期11卷 308-316页

作者： Reem Al Monla Yahya Salma Achraf Kouzayha Hala Gali-Muhtasib Zeina Dassouki hiba mawlawi Laboratory of Applied Biotechnology(LBA3B) AZM Center for Research in Biotechnology and its ApplicationsDoctoral School for Sciences and TechnologyLebanese UniversityTripoliLebanon Department of Biology American University of BeirutLebanon Center for Drug Discovery American University of BeirutRiad El Solh 11072020BeirutLebanon

Objective:To investigate the antioxidant and cytotoxic properties of the most active extracts from Ulva lactuca and Laurencia obtusa against colon and cervical cancer cell ***:The antioxidant radical scavenging activity of the algal extracts was estimated using the 2,2-diphenyl-1-picrylhydrazyl colorimetric ***,the cytotoxic potential of these bioactive extracts was studied against HCT-116 and HeLa cells by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide *** healing analysis was adopted to evaluate the antimetastatic effects of protein extracts from both *** cycle analysis was performed by flow cytometry,and apoptotic bodies were detected using 4′,6-diamidino-2-phenylindole fluorescent *** acids of hydrolyzed protein extract were separated and identified chromatographically by high performance liquid ***:The green algae Ulva lactuca had higher lipid content than Laurencia obtusa,whereas the latter had higher protein content with high antioxidant *** extracts had significant dose-and time-dependent cytotoxicity and anti-metastatic activity against HCT-116 *** b extracts of both algae obtained from the chloroform:hexane solvent lipid-free residue caused morphological changes and induced apoptosis of HCT-116 *** analysis revealed that apoptosis induced upon Laurencia obtusa protein b treatment was triggered via the ROS pathway,causing a significant increase in the sub-G_(1) *** and arginine(5.94 and 5.47μM,respectively)were the most common amino acids in Laurencia obtusa protein b ***:Proteins of Laurencia obtusa and Ulva lactuca could be considered as an adjuvant nutraceutical source of pro-apoptotic and anti-metastatic biomolecules against colon cancer.

关键词： Macroalgae Laurencia obtusa Ulva lactuca Reactive oxygen species Apoptosis

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