TY - JOUR N1 - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. SP - 149 TI - Mass Spectrometry Measurement of Albumin-Alpha Fetoprotein Ratio as an Indicator of iPSC-Derived Hepatocyte Differentiation SN - 1940-6029 Y1 - 2019/// VL - 1994 UR - https://doi.org/10.1007/978-1-4939-9477-9_13 A1 - Mazzacuva, F A1 - Lorvellec, M A1 - Cilibrizzi, A A1 - Mills, K A1 - Heywood, WE A1 - Clayton, P A1 - Gissen, P EP - 156 JF - Cell-Based Assays Using iPSCs for Drug Development and Testing AV - public N2 - During the process of differentiation from induced pluripotent stem cells (iPSCs) to hepatocytes it is crucial to monitor the levels of cellular maturation. We present a new method to evaluate the stage of differentiation based on the monitoring of the ratio between two plasma proteins typically secreted by hepatocytes, that is, albumin and alpha-fetoprotein. This ratio is particularly useful for the direct comparison of cells grown in different conditions, avoiding typical processes of standardization for the cell number (i.e., variation of cell quantity due to the use of different seeding densities and different growth vessels/supports or difficulties in establishing the effective cell viability due to the use of bioreactors or other 3D devices). Our analysis is performed via liquid chromatography?tandem mass spectrometry which allows a precise, selective, and reproducible quantitation of low-abundance proteins. ID - discovery10080960 KW - Albumin; alpha fetoprotein; liquid chromatography; mass spectrometry; plasma proteins; bioreactor. ER -