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10.1038/cdd.2014.73 http://scihub22266oqcxt.onion/10.1038/cdd.2014.73 C4131182!4131182 !24926616     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=24926616 &cmd=llinks): Failed to open stream: HTTP request failed! 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Modulation of p53? and p53? expression by regulating the alternative splicing of TP53 gene modifies cellular response |pdf=|usr=}}{{24926616 }} gab.com Text Modulation of p53 and p53 expression by regulating the alternative splicing of TP53 gene modifies cellular response JO: Cell Death Differ http://www.kidney.de/pget.php?&tw=1&pmid=24926616 #FOAvip In addition to the tumor suppressor p53 protein, also termed p53?, the TP53 gene produces p53? and p53? through alternative splicing of exons 9? and 9? located within TP53 intron 9. Here we report that both TG003, a specific inhibitor of Cdc2-like kinases (Clk) that regulates the alternative splicing pre-mRNA pathway, and knockdown of SFRS1 increase expression of endogenous p53? and p53? at mRNA and protein levels. Development of a TP53 intron 9 minigene shows that TG003 treatment and knockdown of SFRS1 promote inclusion of TP53 exons 9?/9?. In a series of 85 primary breast tumors, a significant association was observed between expression of SFRS1 and ? variant, supporting our experimental data. Using siRNA specifically targeting exons 9?/9?, we demonstrate that cell growth can be driven by modulating p53? and p53? expression in an opposite manner, depending on the cellular context. In MCF7 cells, p53? and p53? promote apoptosis, thus inhibiting cell growth. By transient transfection, we show that p53? enhanced p53? transcriptional activity on the p21 and Bax promoters, while p53? increased p53? transcriptional activity on the Bax promoter only. Moreover, p53? and p53? co-immunoprecipitate with p53? only in the presence of p53-responsive promoter. Interestingly, although p53? and p53? promote apoptosis in MCF7 cells, p53? and p53? maintain cell growth in response to TG003 in a p53?-dependent manner. The dual activities of p53? and p53? isoforms observed in non-treated and TG003-treated cells may result from the impact of TG003 on both expression and activities of p53 isoforms. Overall, our data suggest that p53? and p53? regulate cellular response to modulation of alternative splicing pre-mRNA pathway by a small drug inhibitor. The development of novel drugs targeting alternative splicing process could be used as a novel therapeutic approach in human cancers. Twit Text FOAVip Modulation of p53 and p53 expression by regulating the alternative splicing of TP53 gene modifies cellular response ????Cell Death Differ http://www.kidney.de/pget.php?&tw=1&pmid=24926616 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=24926616 #FOAvip English Wikipedia <ref>{{Cite pmid|24926616 }}</ref> Modulation of p53? and p53? expression by regulating the alternative splicing of TP53 gene modifies cellular response #MMPMID24926616 Marcel V ; Fernandes K ; Terrier O ; Lane DP ; Bourdon JC Cell Death Differ 2014[Sep]; 21 (9 ): 1377-87 PMID24926616 show ga In addition to the tumor suppressor p53 protein, also termed p53?, the TP53 gene produces p53? and p53? through alternative splicing of exons 9? and 9? located within TP53 intron 9. Here we report that both TG003, a specific inhibitor of Cdc2-like kinases (Clk) that regulates the alternative splicing pre-mRNA pathway, and knockdown of SFRS1 increase expression of endogenous p53? and p53? at mRNA and protein levels. Development of a TP53 intron 9 minigene shows that TG003 treatment and knockdown of SFRS1 promote inclusion of TP53 exons 9?/9?. In a series of 85 primary breast tumors, a significant association was observed between expression of SFRS1 and ? variant, supporting our experimental data. Using siRNA specifically targeting exons 9?/9?, we demonstrate that cell growth can be driven by modulating p53? and p53? expression in an opposite manner, depending on the cellular context. In MCF7 cells, p53? and p53? promote apoptosis, thus inhibiting cell growth. By transient transfection, we show that p53? enhanced p53? transcriptional activity on the p21 and Bax promoters, while p53? increased p53? transcriptional activity on the Bax promoter only. Moreover, p53? and p53? co-immunoprecipitate with p53? only in the presence of p53-responsive promoter. Interestingly, although p53? and p53? promote apoptosis in MCF7 cells, p53? and p53? maintain cell growth in response to TG003 in a p53?-dependent manner. The dual activities of p53? and p53? isoforms observed in non-treated and TG003-treated cells may result from the impact of TG003 on both expression and activities of p53 isoforms. Overall, our data suggest that p53? and p53? regulate cellular response to modulation of alternative splicing pre-mRNA pathway by a small drug inhibitor. The development of novel drugs targeting alternative splicing process could be used as a novel therapeutic approach in human cancers. |Alternative Splicing/*genetics [MESH] |Cell Line, Tumor [MESH] |Humans [MESH] |MCF-7 Cells [MESH] |Protein Isoforms/genetics/metabolism [MESH]Modulation of p53? and p53? expression by regulating the alternative s(epmc).pdf DeepDyve Pubget Overpricing