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- W137172405 endingPage "147" @default.
- W137172405 startingPage "135" @default.
- W137172405 abstract "The transcription factor E2F1 exhibits dual properties, acting as a tumor suppressor and oncogene. Cellular stress such as DNA damage or mitogenic signaling leads to the activation of E2F1 as a mediator of apoptosis in the context of a conserved cellular anti-tumorigenic safeguard mechanism. However in highly aggressive chemoresistant tumors like malignant melanoma and prostate/bladder cancer it switches off this role and acts as promoter of cancer progression. Possible reasons for E2F1 mediated aggressiveness are defects in cell death pathways caused by epigenetic inactivation of important tumor suppressor genes, which often occur in late stage cancer and contribute to chemoresistance. Nevertheless exact mechanisms underlying E2Fs role in invasiveness and metastasis are largely unknown. Different reports hint towards the existence of feedback loops between E2F1 and microRNAs (miRNAs or miRs). MiRs are activated by E2F1 and either the transcription factor itself or cellular genes necessary for the growth regulating function of E2F1 are inhibited by different miRNAs. This mutual regulation possibly influences the balance between E2F1s proapoptotic versus prosurvival function. In the following we will summarize some miRNA-E2F1-interactions contributing to a complex regulatory network." @default.
- W137172405 created "2016-06-24" @default.
- W137172405 creator A5047297986 @default.
- W137172405 creator A5048760213 @default.
- W137172405 creator A5062616205 @default.
- W137172405 date "2012-12-19" @default.
- W137172405 modified "2023-09-27" @default.
- W137172405 title "The E2F1-miRNA Cancer Progression Network" @default.
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