Micro-FastTrackTM 2.0 mRNA Isolation Kit (Invitrogen)Introduction【 The Micro-FastTrack≒2.0 mRNA ... liquid nitrogen and store at -70‘C.4. Resuspend the cell pellet in 1 ml of Micro-FastTrack≒ 2.0 Lysis ... Isolation Kit allows isolation of polyA+ RNA directly from cells (1 x 102 - 5 x 106), tissue (10-200 mg