2015
DOI: 10.1016/j.bbrc.2015.07.052
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Sonic hedgehog stimulates glycolysis and proliferation of breast cancer cells: Modulation of PFKFB3 activation

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Cited by 34 publications
(30 citation statements)
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“…This may indicate greater activation of the Shh signaling pathway leading to increased cell proliferation. The expression pattern of this protein in syndromic and sporadic OKCs is similar to that seen in breast tumors, which also showed more prominent cytoplasmic Shh expression when compared to normal tissues [20]. Shh, Ptch, Smo, and Gli1 expression in sporadic and syndromic OKCs were all positive in the epithelial layers [21].…”
Section: Discussionsupporting
confidence: 58%
“…This may indicate greater activation of the Shh signaling pathway leading to increased cell proliferation. The expression pattern of this protein in syndromic and sporadic OKCs is similar to that seen in breast tumors, which also showed more prominent cytoplasmic Shh expression when compared to normal tissues [20]. Shh, Ptch, Smo, and Gli1 expression in sporadic and syndromic OKCs were all positive in the epithelial layers [21].…”
Section: Discussionsupporting
confidence: 58%
“…However, the higher proliferative activity observed in IL30 conditioned versus control tumors proves that the multiple signaling pathways triggered by the cytokine results, as a whole, in tumor growth and progression. In addition, at least in the triple-negative tumor, IL30 substantially upregulates SHH, which accelerates MDA-MB-231 cell proliferation (42) and is fundamental in the maintenance of a putative cancer stem cell compartment along with MYC, which is also upregulated by IL30 (43,44). Moreover, IL30 downmodulates a set of critical tumor suppressors such as PTEN (18), RARB (19), RASSF1 (20), SLIT2 (21), and particularly TP73 (22), which lead to alterations in the cell-cycle regulation and a defective apoptotic response.…”
Section: Discussionmentioning
confidence: 99%
“…Furthermore, the AMPK-dependent phosphorylation of PFKFB3 substitutes oxidative respiration by glycolysis, which causes inhibition of cell death and of antitumor efficiency of the microtubule toxin in breast cancer cells (91). Sonic hedgehog phosphorylates PFKFB3 to promote glycolysis and proliferation of breast cancer cells, which is mediated by smoothened and p38/MK2 (92). In addition, the 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 4 (PFKFB4) in breast cancer cells can phosphorylate the oncogenic steroid receptor coactivator-3, which rapidly increases its transcriptional activity and promotes the glucose flux switch towards purine synthesis (93).…”
Section: Ppp In Malignant Tumorsmentioning
confidence: 99%