title: Antitumor and cytotoxic effects of Phyllanthus polyphyllus on Ehrlich ascites carcinoma and human cancer cell lines.
abstract: To evaluate the antitumor and cytotoxic activity of methanol extract of Phyllanthus polyphyllus (MPP) in mice and human cancer cell lines, the antitumor activity of MPP was evaluated against an Ehrlich ascites carcinoma (EAC) tumor model. The activity was assessed using survival time, hematological studies, lipid peroxidation (LPO), antioxidant enzymes such as superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx), glutathione S-transferase (GST), solid tumor mass, and short-term in vitro cytotoxicity. The cytotoxic activity of MPP was evaluated using human breast cancer (MCF7), colon cancer (HT29), and liver cancer (HepG2) cell lines Oral administration of MPP (200 and 300 mg/kg) increased the survival time and significantly reduced the solid tumor volume in a dose-dependent manner. Hematological parameters, protein, and packed cellular volume (PCV), which were altered by tumor inoculation, were restored. MPP significantly decreased the levels of LPO, GPx, GST, and significantly increased the levels of SOD and CAT. In a cytotoxicity study against human cancer cell lines, MPP was found to have IC50 values of 27, 42 and 38 microg/ml on MCF-7, HT-29, and HepG2 cells respectively. MPP possessed significant antitumor and cytotoxic activity on EAC and human cancer cell lines.
authors.affiliation: Department of Pharmacology, Vel's College of Pharmacy, Velan Nagar, Pallavaram, Chennai 600 117, India. rajkapoorb@yahoo.co.in
authors.forename: Balasubramanian
authors.initials: B
authors.lastname: Rajkapoor
authors.forename: Marimuthu
authors.initials: M
authors.lastname: Sankari
authors.forename: Mohan
authors.initials: M
authors.lastname: Sumithra
authors.forename: Jayaraman
authors.initials: J
authors.lastname: Anbu
authors.forename: Narayanaswamy
authors.initials: N
authors.lastname: Harikrishnan
authors.forename: Manavalan
authors.initials: M
authors.lastname: Gobinath
authors.forename: Venkatesan
authors.initials: V
authors.lastname: Suba
authors.forename: Ramachandran
authors.initials: R
authors.lastname: Balaji
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism; D002286:Carcinoma, Ehrlich Tumor / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology*; D045744:Cell Line, Tumor; D006801:Humans; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D051379:Mice; D029803:Phyllanthus / Q000737:chemistry*; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use / Q000633:toxicity; D015996:Survival Rate; D013997:Time Factors; D023041:Xenograft Model Antitumor Assays