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Co-inhibition of ATM and ROCK synergistically improves cell proliferation in replicative senescence by activating FOXM1 and E2F1

Cited 5 time in Web of Science Cited 5 time in Scopus
Authors

Yang, Eun Jae; Park, Ji Hwan; Cho, Hyun-Ji; Hwang, Jeong-A; Woo, Seung-Hwa; Park, Chi Hyun; Kim, Sung Young; Park, Joon Tae; Park, Sang Chul; Hwang, Daehee; Lee, Young-Sam

Issue Date
2022-12
Publisher
Nature Publishing Group
Citation
Communications Biology, Vol.5 No.1, p. 702
Abstract
© 2022, The Author(s).The multifaceted nature of senescent cell cycle arrest necessitates the targeting of multiple factors arresting or promoting the cell cycle. We report that co-inhibition of ATM and ROCK by KU-60019 and Y-27632, respectively, synergistically increases the proliferation of human diploid fibroblasts undergoing replicative senescence through activation of the transcription factors E2F1 and FOXM1. Time-course transcriptome analysis identified FOXM1 and E2F1 as crucial factors promoting proliferation. Co-inhibition of the kinases ATM and ROCK first promotes the G2/M transition via FOXM1 activation, leading to accumulation of cells undergoing the G1/S transition via E2F1 activation. The combination of both inhibitors increased this effect more significantly than either inhibitor alone, suggesting synergism. Our results demonstrate a FOXM1- and E2F1-mediated molecular pathway enhancing cell cycle progression in cells with proliferative potential under replicative senescence conditions, and treatment with the inhibitors can be tested for senomorphic effect in vivo.
ISSN
2399-3642
URI
https://hdl.handle.net/10371/185636
DOI
https://doi.org/10.1038/s42003-022-03658-5
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