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10.1128/MCB.00711-15 http://scihub22266oqcxt.onion/10.1128/MCB.00711-15 C4800799!4800799 !26787840     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26787840 &cmd=llinks): Failed to open stream: HTTP request failed! 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A Repertoire of MicroRNAs Regulates Cancer Cell Starvation by Targeting Phospholipase D in a Feedback Loop That Operates Maximally in Cancer Cells |pdf=|usr=}}{{26787840 }} gab.com Text A Repertoire of MicroRNAs Regulates Cancer Cell Starvation by Targeting Phospholipase D in a Feedback Loop That Operates Maximally in Cancer Cells JO: Mol Cell Biol http://www.kidney.de/pget.php?&tw=1&pmid=26787840 #FOAvip We report a negative feedback loop between the signaling protein phospholipase D (PLD), phosphatidic acid (PA), and a specific set of microRNAs (miRNAs) during nutrient starvation of breast cancer cells. We show that PLD expression is increased in four breast cancer cell lines and that hypoxia, cell overcrowding, and nutrient starvation for 3 to 6 h increase expression even further. However, after prolonged (>12-h) starvation, PLD levels return to basal or lower levels. The mechanism for this is as follows. First, during initial starvation, an elevated PA (the product of PLD enzymatic activity) activates mTOR and S6K, known to inhibit apoptosis, and enhances cell migration especially in post-epithelial-to-mesenchymal transition (post-EMT) cancer cells. Second, continued PA production in later starvation induces expression of PLD-targeting microRNA 203 (miR-203), miR-887, miR-3619-5p, and miR-182, which reduce PLD translation. We provide direct evidence for a feedback loop, whereby PLD induction upon starvation leads to PA, which induces expression of miRNAs, which in turn inhibits PLD2 translation. The physiological relevance for breast cancer cells is that as PA can activate cell invasion, then, due to the negative feedback, it can deprive mTOR and S6K of their natural activator. It can further prevent inhibition of apoptosis and allow cells to survive nutrient deprivation, which normal cells cannot do. Twit Text FOAVip A Repertoire of MicroRNAs Regulates Cancer Cell Starvation by Targeting Phospholipase D in a Feedback Loop That Operates Maximally in Cancer Cells ????Mol Cell Biol http://www.kidney.de/pget.php?&tw=1&pmid=26787840 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26787840 #FOAvip English Wikipedia <ref>{{Cite pmid|26787840 }}</ref> A Repertoire of MicroRNAs Regulates Cancer Cell Starvation by Targeting Phospholipase D in a Feedback Loop That Operates Maximally in Cancer Cells #MMPMID26787840 Fite K ; Elkhadragy L ; Gomez-Cambronero J Mol Cell Biol 2016[Jan]; 36 (7 ): 1078-89 PMID26787840 show ga We report a negative feedback loop between the signaling protein phospholipase D (PLD), phosphatidic acid (PA), and a specific set of microRNAs (miRNAs) during nutrient starvation of breast cancer cells. We show that PLD expression is increased in four breast cancer cell lines and that hypoxia, cell overcrowding, and nutrient starvation for 3 to 6 h increase expression even further. However, after prolonged (>12-h) starvation, PLD levels return to basal or lower levels. The mechanism for this is as follows. First, during initial starvation, an elevated PA (the product of PLD enzymatic activity) activates mTOR and S6K, known to inhibit apoptosis, and enhances cell migration especially in post-epithelial-to-mesenchymal transition (post-EMT) cancer cells. Second, continued PA production in later starvation induces expression of PLD-targeting microRNA 203 (miR-203), miR-887, miR-3619-5p, and miR-182, which reduce PLD translation. We provide direct evidence for a feedback loop, whereby PLD induction upon starvation leads to PA, which induces expression of miRNAs, which in turn inhibits PLD2 translation. The physiological relevance for breast cancer cells is that as PA can activate cell invasion, then, due to the negative feedback, it can deprive mTOR and S6K of their natural activator. It can further prevent inhibition of apoptosis and allow cells to survive nutrient deprivation, which normal cells cannot do. |*Feedback, Physiological [MESH] |Apoptosis [MESH] |Breast Neoplasms/*metabolism/pathology [MESH] |Cell Hypoxia [MESH] |Cell Line, Tumor [MESH] |Female [MESH] |Gene Expression Regulation, Neoplastic [MESH] |Humans [MESH] |MicroRNAs/*metabolism [MESH] |Models, Biological [MESH] |Phosphatidic Acids/metabolism [MESH] |Phospholipase D/genetics/*metabolism [MESH] |Protein Biosynthesis [MESH] |RNA, Neoplasm/metabolism [MESH] |Ribosomal Protein S6/metabolism [MESH]A Repertoire of MicroRNAs Regulates Cancer Cell Starvation by Targetin(epmc).pdf DeepDyve Pubget Overpricing