MicroPOTS Analysis of Barrett's Esophageal Cell Line Models Identifies Proteomic Changes after Physiologic and Radiation Stress

Autor: Ted R. Hupp, Borek Vojtesek, Tongjie Wang, Irena Dapic, Ying Zhu, Mowei Zhou, Ryan T. Kelly, David R. Goodlett, Javier A. Alfaro, Naomi Uwugiaren, Robert O'Neill, Ashita Singh, Kenneth Weke, Sarah M. Williams
Rok vydání: 2021
Předmět:
Zdroj: Journal of Proteome Research
Weke, K, Singh, A, Uwugiaren, N, Alfaro, J A, Wang, T, Hupp, T R, O'Neill, R, Vojtesek, B, R. Goodlett, D, M. Williams, S, Zhou, M, T. Kelly, R, Zhu, Y & Dapic, I 2021, ' MicroPOTS analysis of Barrett’s oesophageal cell line models identifies proteomic changes after physiologic and radiation stress ', Journal Of Proteome Research . https://doi.org/10.1021/acs.jproteome.0c00629
ISSN: 1535-3907
DOI: 10.1021/acs.jproteome.0c00629
Popis: Moving from macroscale preparative systems in proteomics to micro- and nanotechnologies offers researchers the ability to deeply profile smaller numbers of cells that are more likely to be encountered in clinical settings. Herein a recently developed microscale proteomic method, microdroplet processing in one pot for trace samples (microPOTS), was employed to identify proteomic changes in ∼200 Barrett's esophageal cells following physiologic and radiation stress exposure. From this small population of cells, microPOTS confidently identified >1500 protein groups, and achieved a high reproducibility with a Pearson's correlation coefficient value of R > 0.9 and over 50% protein overlap from replicates. A Barrett's cell line model treated with either lithocholic acid (LCA) or X-ray had 21 (e.g., ASNS, RALY, FAM120A, UBE2M, IDH1, ESD) and 32 (e.g., GLUL, CALU, SH3BGRL3, S100A9, FKBP3, AGR2) overexpressed proteins, respectively, compared to the untreated set. These results demonstrate the ability of microPOTS to routinely identify and quantify differentially expressed proteins from limited numbers of cells.
Databáze: OpenAIRE