2 articles published in JoVE
In Vitro Colony Assays for Characterizing Tri-potent Progenitor Cells Isolated from the Adult Murine Pancreas Jacob R. Tremblay*1,2, Jeanne M. LeBon*1, Angela Luo1, Janine C. Quijano1, Lena Wedeken1, Kevin Jou1, Arthur D. Riggs1, David A. Tirrell3, H. Teresa Ku1 1Diabetes and Metabolism Research Institute, Beckman Research Institute of City of Hope, 2Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute of City of Hope, 3Division of Chemistry and Chemical Engineering, California Institute of Technology In vitro colony assays to detect self-renewal and differentiation of progenitor cells isolated from adult murine pancreas are devised. In these assays, pancreatic progenitors give rise to cell colonies in 3-dimensional space in methylcellulose-containing semi-solid medium. Protocols for handling single cells and characterization of individual colonies are described.
An In Vitro Enzymatic Assay to Measure Transcription Inhibition by Gallium(III) and H3 5,10,15-tris(pentafluorophenyl)corroles Grace Y. Tang1, Melanie A. Pribisko1, Ryan K. Henning1, Punnajit Lim2, John Termini2, Harry B. Gray1, Robert H. Grubbs1 1Division of Chemistry and Chemical Engineering, California Institute of Technology, 2Department of Molecular Medicine, Beckman Research Institute of the City of Hope Gallium(III) 5,10,15-(tris)pentafluorophenylcorrole and its freebase analogue exhibit low micromolar cell cytotoxicity. This manuscript describes an RNA transcription reaction, imaging RNA with an ethidium bromide-stained gel, and quantifying RNA with UV-Vis spectroscopy, in order to assess transcription inhibition by corroles and demonstrates a straightforward method of evaluating anticancer candidate properties.