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Basic technique Training and and Practice Pipetting and transfer of fluid Observation of cultured cells Aseptic technique: preparation of mediums and buffers Feeding a culture Washing and sterilization of water Counting cells by haemacytometer Subculture of continuous cell line– monolayer culture Construction and analysis of growth curve
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Advanced Techniques Detection of mycoplasma Cell line characterization and analysis Primary Culture Cytotoxicity assay
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Exercise 1. Aseptic Technique Purpose: Practice in transferring fluid from one bottle to another Exercise 2. Aseptic Technique Purpose: Preparation of Buffers and Culture medium and Procedures : 1.Preparation of 10XPBX 2.Preparation of DMEM+ FBS+ Penicillium/Streptomycin 3.Sterilization of bottles and pipettes and equipments
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D-PBSA g/L final concentration KCl 0.2 2.68 KH2PO4 0.2 1.47 NaCl 8 136.9 Na2HPO4.7H2O 2.2 8.06 Make 500ml/bottle, and autoclave before use
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1X DMEM growth medium 1 pack DMEM from sigma add 1000 ml DDW filter through 0.45um filter Add 450ml/bottle Add 50ml FBS, 5 ml P/S
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http://www.youtube.com/watch?v=4mKhULnxqcw&feature=related Aseptic Technique http://www.youtube.com/watch?v=_fjZ-MHV22w Cell Culture Basics
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Exercise 3. Cell Line maintenance and cell passage
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General procedure for the cell culture laboratory 1. Thawing cells Culture of cell lines( frozen stock) Thaw Cell line maintenance
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Day 1 frozen culture( -190 o C) 1 ml in frozen medium 37 o C, thaw Add, 10ml culture medium( DMEM+FBS+p/s) 1200 rpm, 5 min Remove suspension resuspend cell pellet with 5 ml growth medium plating 10 6 cells/ml
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Day 2 Culture( cells checked under inverted microscope) Remove culture medium, Replace with fresh culture medium (3ml)
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Day3 subculture remove culture medium cells washed with 2ml CMF/PBS remove PBS cells, trypsinize with 1x trypsin( 0.025%) ( flush cell by pipetting repeatly) cells taken into 15ml centrifuge tube 1200 rpm, centrifuge, 10min trypsin, removed add 5 ml DMEM cells diluted for plating( 1/4 dilution) in 6 mm cullture dish 37 o C, CO2 incubator
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2 to 3 days later cells trypsinize with 1x tyrpsine ( protocols follow the previous page ) cells, resuspend with 5 ml DMEM cell, 10 ul was taken+ 10ul trypane blue cell counting
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haemacytometer 10 ul cellwas taken+ 10ul trypane blue
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(N1+N1)/2 /4 *2 * 10 4 =cells/mlCell number= N1 N2
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http://www.youtube.com/watch?v=-cGPS5ryg14&feature=related Counting cells
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Cell freezing ( 10 6 cells /ml) confluent cultures cells trypsinized cell counting cell pellet resuspend in frozen medium -20 o C( 2-4hrs) -70 o C(2-4hrs) -196 o C ( DMEM+10%DMSO)
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Gradually Lower temperature to -20 o C in ( 2-4hrs) -70 o C(2-4hrs) -196 o C http://www.youtube.com/watch?v=ZtElKq85OuM&feature=related Freezing Cells
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Cell lines: CHO Chinese Hamster Ovary 3T3 mouse fibroblast CT26 colon carcinoma cell line B16F1 melanoma MG-63 human osteosarcoma skHEPI Hepatoma STO mouse embryonic fibroblast HeLa cervical cancer C2C12 mouse fibroblast
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http://www.youtube.com/watch?v=_fjZ-MHV22w Cell Culture Basics http://www.youtube.com/watch?v=gaG15lM1t5A&feature=related Passaging Cells http://www.youtube.com/watch?v=CCWrLUA6Qbg&feature=related Thawing Cells http://www.youtube.com/watch?v=ZtElKq85OuM&feature=related Freezing Cells http://www.youtube.com/watch?v=4mKhULnxqcw&feature=related Aseptic Technique http://www.youtube.com/watch?v=-cGPS5ryg14&feature=related Counting cells
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