QIMR Berghofer

Inhibition of RNA polymerase I transcription initiation by CX-5461 activates non-canonical ATM/ATR signaling

Abstract

RNA polymerase I (Pol I)-mediated transcription of the ribosomal RNA genes (rDNA) is confined to the nucleolus and is a rate-limiting step for cell growth and proliferation. Inhibition of Pol I by CX-5461 can selectively induce p53-mediated apoptosis of tumour cells in vivo. Currently, CX-5461 is in clinical trial for patients with advanced haematological malignancies (Peter Mac, Melbourne).

Authors Quin, Jaclyn; Chan, Keefe T.; Devlin, Jennifer R.; Cameron, Donald P.; Diesch, Jeannine; Cullinane, Carleen; Ahern, Jessica; Khot, Amit; Hein, Nadine; George, Amee J.; Hannan, Katherine M.; Poortinga, Gretchen; Sheppard, Karen E.; Khanna, Kum Kum; Johnstone, Ricky W.; Drygin, Denis; McArthur, Grant A.; Pearson, Richard B.; Sanij, Elaine; Hannan, Ross D.
Journal ONCOTARGET
Pages 49800-49818
Volume 7
Date 1/08/2016
Grant ID 1043884
Funding Body National Health and Medical Research Council (NHMRC) of Australia
URL http://www.ncbi.nlm.nih.gov/pubmed/?term=10.18632/oncotarget.10452