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• W3046232101 abstract "Abstract Hotspot p53 mutant proteins often gain novel functions in promoting tumor metastases. However, the molecular mechanisms by which mutant p53 exerts gain-of-function in cancer are not totally understood. In this study, we demonstrate that hotspot mutant p53, p53-R273H, promotes cell scattering growth and migration via inhibiting the expression of Krupple-like factor 6 (KLF6), a Zinc finger transcription factor and a documented tumor suppressor. Restoration of KLF6 increases the expression of E-cadherin downregulated by p53-R273H and inhibits p53-R273H-induced cell migration and tumor metastasis. Further, p53-R273H reduces KLF6 transcription by upregulating EGFR expression which in turn activates AKT–FOXO1 axis. Pharmacological inhibitor of AKT, MK2206, rescues KLF6 expression and suppresses p53-R273H-induced cell migration. Clinical analyses reveal that KLF6 expression is decreased in human breast cancer specimens harboring p53 mutations, and negatively correlated with EGFR expression in human breast cancer. In addition, low expression of KLF6 is associated with poor overall survival (OS) and relapse-free survival (RFS) in p53 mutated human breast cancer patients. Together, these results reveal an important role for EGFR–AKT–FOXO1–KLF6–E-cadherin axis in mutant p53-induced cell migration and tumor metastasis." @default.
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• W3046232101 date "2020-07-30" @default.
• W3046232101 modified "2023-10-08" @default.
• W3046232101 title "Hotspot mutant p53-R273H inhibits KLF6 expression to promote cell migration and tumor metastasis" @default.
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• W3046232101 doi "https://doi.org/10.1038/s41419-020-02814-1" @default.
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