4.7 Article

EGFR-ERK induced activation of GRHL1 promotes cell cycle progression by up-regulating cell cycle related genes in lung cancer

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CELL DEATH & DISEASE
卷 12, 期 5, 页码 -

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SPRINGERNATURE
DOI: 10.1038/s41419-021-03721-9

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资金

  1. National Natural Science Foundation of China [81902346, 81660391, 81672298]
  2. Training Plan for Academic and Technical Leaders of Major Disciplines in Jiangxi Province [20204BCJ23023]
  3. Natural Science Foundation of Jiangxi Province [20192BAB215038]

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GRHL1 is upregulated in non-small cell lung cancer and correlated with poor patient survival. Overexpression of GRHL1 promotes cell proliferation while knocking down GRHL1 affects the expression of cell cycle-related genes. The study also reveals the potential role of GRHL1 as a drug target in NSCLC.
Grainyhead-like 1 (GRHL1) is a transcription factor involved in embryonic development. However, little is known about the biological functions of GRHL1 in cancer. In this study, we found that GRHL1 was upregulated in non-small cell lung cancer (NSCLC) and correlated with poor survival of patients. GRHL1 overexpression promoted the proliferation of NSCLC cells and knocking down GRHL1 inhibited the proliferation. RNA sequencing showed that a series of cell cycle-related genes were altered when knocking down GRHL1. We further demonstrated that GRHL1 could regulate the expression of cell cycle-related genes by binding to the promoter regions and increasing the transcription of the target genes. Besides, we also found that EGF stimulation could activate GRHL1 and promoted its nuclear translocation. We identified the key phosphorylation site at Ser76 on GRHL1 that is regulated by the EGFR-ERK axis. Taken together, these findings elucidate a new function of GRHL1 on regulating the cell cycle progression and point out the potential role of GRHL1 as a drug target in NSCLC.

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