A quantitative proteomics approach identifies ETV6 and IKZF1 as new regulators of an ERG-driven transcriptional network.

A quantitative proteomics approach identifies ETV6 and IKZF1 as new regulators of an ERG-driven transcriptional network.

Nucleic acids research (2016-09-09)

Ashwin Unnikrishnan, Yi F Guan, Yizhou Huang, Dominik Beck, Julie A I Thoms, Sofie Peirs, Kathy Knezevic, Shiyong Ma, Inge V de Walle, Ineke de Jong, Zara Ali, Ling Zhong, Mark J Raftery, Tom Taghon, Jonas Larsson, Karen L MacKenzie, Pieter Van Vlierberghe, Jason W H Wong, John E Pimanda

PMID27604872

摘要

Aberrant stem cell-like gene regulatory networks are a feature of leukaemogenesis. The ETS-related gene (ERG), an important regulator of normal haematopoiesis, is also highly expressed in T-ALL and acute myeloid leukaemia (AML). However, the transcriptional regulation of ERG in leukaemic cells remains poorly understood. In order to discover transcriptional regulators of ERG, we employed a quantitative mass spectrometry-based method to identify factors binding the 321 bp ERG +85 stem cell enhancer region in MOLT-4 T-ALL and KG-1 AML cells. Using this approach, we identified a number of known binders of the +85 enhancer in leukaemic cells along with previously unknown binders, including ETV6 and IKZF1. We confirmed that ETV6 and IKZF1 were also bound at the +85 enhancer in both leukaemic cells and in healthy human CD34

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BSA+TMCS, for GC derivatization, LiChropur^™, 93.0-97.0% (GC)