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Antileukemic activity of the leaf extract of Bischofia javanica blume on human leukemic cell lines

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Author(s): Lingadurai Sutharson | Roy Soma | Joseph Rajan | Nath Lila

Journal: Indian Journal of Pharmacology
ISSN 0253-7613

Volume: 43;
Issue: 2;
Start page: 143;
Date: 2011;
Original page

Keywords: Apoptosis pathway | Bischofia javanica | cytotoxicity

ABSTRACT
Objective : Leaves of Bichofia javanica (BJ) have been traditionally used for many ailments including cancer. In the present study, antileukemic activity of the leaf extract was evaluated on human leukemic cell lines. Materials and Methods : Human leukemic cell lines U937, K562, and HL60 were purchased from National Facility for Animal Tissue and Cell Culture, Pune, India. The cells were routinely maintained in RPMI 1640 medium supplemented with 10% heat inactivated fetal calf serum. Cultures were maintained at 37ºC in a humidified atmosphere containing 5% CO 2 in air. The methanol extract of BJ (MEBJ) was dissolved in PBS and used at the concentrations of 5, 10, and 15 μg/ml for cell viability and cytotoxicity studies (MTT assay). Cell counts were made in quadruplicate samples at the interval of 24, 48, and 72 h and cytarabine (20 μg/ml) served as standard drug. The apoptotic pathway of cytotoxicity was assessed by DNA agarose gel electrophoresis technique and confirmed by fluorescence and confocal microscopic methods at the concentration of 10 μg/ml. Results : MEBJ showed significant cytotoxicity (P
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