A NOVEL METHOD FOR ISOLATION AND TRILINEAGE DIFFERENTIATION OF RAT BONE MARROW DERIVED MESENCHYMAL STEM CELLS

Objective: Goal of this study is to find a simple method for isolation, colony formation and Trilineage differentiation of Mesenchymal stem cells frombone marrow of Wistar Rat. Adherent capacity, morphology, trilineage differentiation and colony formation of bone marrow mesenchymal stem cellswere studied in low glucose, high glucose Dulbecco modified eagle medium with various concentration of fetal bovine serum.Methods: Mesenchymal stem cells were isolated from bone marrow of Wistar rat by Ficoll (sigma) density gradient centrifugation with plasticadherence method. Bone marrow was collected from femur and Tibia of 6-weeks-old Wistar rat; Bone marrow was cultured in Dulbecco's modifiedEagles's medium (DMEM) with low glucose, high glucose supplement (Invitrogen) and 10%, 15% of fetal bovine serum (FBS) at the density of1 × 106, incubated at 37°C in 5% of CO; adherent capacity, colony formation were studied. Differentiation of bone marrow mesenchymal stem cells(BMMSCs) was monitored under suitable differentiation medium. The cells were refeed every 3-4 days and passaged when the cells reached 80-90%confluences.2Result: BMMSCs were adhered in tissue culture flask at 24 hrs, 48 hrs in high glucose and low glucose DMEM with 10% of FBS, respectively. Colonyformation was faster in high glucose and low glucose DMEM with 15% of FBS compared to high glucose and low glucose DMEM with10% FBS.Morphological changes were observed in BMMSCs high glucose, low glucose DMEM with 10% FBS, but no changes were found in the differentiationof BMMSCs in high glucose, low glucose DMEM. Differentiation of BMMSCs was nourishing in third passage cells.Conclusion: High glucose DMEM with 10% FBS is a good supplement for adherence of cells whereas high glucose, low glucose DMEM with 15% FBScan be utilized for rapid Colony formation. Third passage BMMSCs is fruitful for differentiation of BMMSCs.Keywords: Wistar rat, Bone marrow, Mesenchymal stem cells, Adherent capacity, Colony formation, Differentiation, Osteoblast, Chondrocytes,Adipocytes