Monday, May 03, 2004
Description Conditioned Medium for Retinal Explant Culture Procedure Remove E14.5 rat retinae with lens intact in prewarmed explant culture medium. Immediately place 4 retinae on a polycarbonate filter (1 micron pore size, 13 mm diameter, Corning/Nucleopore #110410) in 1 ml prewarmed explant culture medium in a 12 well dish. Culture for 4 days and each day add as much medium as possible (50-100ml) to each explant (4 retinae) from the well containing the explant. On the fourth day, remove the explants, dilute the cultured supernatant twofold with fresh explant culture medium, and filter through a syring filter that is low protein binding such as Millex-GV (0.22 micron pore size). Store at -80C in 240 microliter aliquotes. To use add 20 microliters per explant each day. Recipes Explant Culture Medium 45% HAMS F-12 (Gibco #11765-054) 45% DME (Gibco #10313-021) 10% FCS (HyClone) Insulin (5 mg/ml 1000X stock in H2O with HCl) (10 ml/liter) L-glutamine (200 mM, Cellgro # 25-005-CI) (10 ml/liter) Penn/Strep (Cellgro #30-002-CI) (10 ml/liter) HEPES (Cellgro #25-060-CI) Supplies Tips (责任编辑:泉水) |