In vitro evaluation of antibacterial, antioxidant, cytotoxic and apoptotic activities of the tubers infusion and extracts of Cyperus rotundus.
The in vitro antibacterial, antioxidant, cytotoxic and apoptotic activities from tubers extracts of Cyperus rotundus (Cyperaceae) were investigated. Antibacterial activity of different extracts was evaluated against five bacterial reference strains. A marked inhibitory effect was observed against Salmonella enteritidis, Staphylococcus aureus and Enterococcus faecalis with total oligomers flavonoids (TOFs) and ethyl acetate extracts. In addition to their antibacterial activity, the same extracts showed a significant ability to inhibit nitroblue tetrazolium reduction by the superoxide radical in a non-enzymatic superoxide generating system. Apoptosis, a highly organized physiological mechanism to eliminate injured or abnormal cells, is also implicated in multistage carcinogenesis. It was observed that TOF and ethyl acetate extracts suppressed growth and proliferation of L1210 cells derived from murine lymphoblastic leukaemia. Morphological features of treated cells and characteristic DNA fragmentation revealed that the cytotoxicity was due to induction of apoptosis. This study confirms that TOF and ethyl acetate extracts of C.rotundus possess antibacterial and antioxidant properties and provoke DNA fragmentation, a sign of induction of apoptosis. These results were correlated with chemical composition of the tested extracts.
Unité de Pharmacognosie/Biologie Moléculaire 99/UR/07-03, Faculty of Pharmacy of Monastir, 5000 Monastir, Tunisia.
Soumaya
S
Kilani
Mohamed
M
Ben Sghaier
Ilef
I
Limem
Ines
I
Bouhlel
Jihed
J
Boubaker
Wissem
W
Bhouri
Ines
I
Skandrani
Aicha
A
Neffatti
Ribai
R
Ben Ammar
Marie Genviève
MG
Dijoux-Franca
Kamel
K
Ghedira
Leila
L
Chekir-Ghedira
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D001419:Bacteria / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D029786:Cyperus / Q000737:chemistry / Q000378:metabolism*; D053938:DNA Fragmentation / Q000187:drug effects; D016166:Free Radical Scavengers / Q000494:pharmacology; D051379:Mice; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D035281:Plant Tubers / Q000378:metabolism*; D013481:Superoxides / Q000378:metabolism
D000900:Anti-Bacterial Agents; D000975:Antioxidants; D016166:Free Radical Scavengers; D010936:Plant Extracts; D013481:Superoxides