2010
DOI: 10.1158/0008-5472.can-09-3970
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Regulation of Insulin-like Growth Factor–Mammalian Target of Rapamycin Signaling by MicroRNA in Childhood Adrenocortical Tumors

Abstract: MicroRNAs (miRNAs) act at the posttranscriptional level to control gene expression in virtually every biological process, including oncogenesis. Here, we report the identification of a set of miRNAs that are differentially regulated in childhood adrenocortical tumors (ACT), including miR-99a and miR-100. Functional analysis of these miRNAs in ACT cell lines showed that they coordinately regulate expression of the insulin-like growth factor-mammalian target of rapamycin (mTOR)-raptor signaling pathway through b… Show more

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Cited by 198 publications
(251 citation statements)
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“…Interestingly, Batisse-Lignier and coworkers also showed that long-term mice treatment with rapamycin (an inhibitor of mTOR signaling) significantly reduced tumor size and hormonal production. These data are consistent with previous studies showing the efficacy of mTOR and dual PI3K/mTOR inhibitors to impair H295R cell proliferation both in vitro and grown as xenografts in nude mice (Doghman et al 2010, Doghman & Lalli 2012.…”
Section: Animal Models Of Metastatic Actsupporting
confidence: 93%
“…Interestingly, Batisse-Lignier and coworkers also showed that long-term mice treatment with rapamycin (an inhibitor of mTOR signaling) significantly reduced tumor size and hormonal production. These data are consistent with previous studies showing the efficacy of mTOR and dual PI3K/mTOR inhibitors to impair H295R cell proliferation both in vitro and grown as xenografts in nude mice (Doghman et al 2010, Doghman & Lalli 2012.…”
Section: Animal Models Of Metastatic Actsupporting
confidence: 93%
“…PTEN is an important tumor suppressor that antagonizes PI3K activity by inhibiting the transformation of PIP2 to PIP3. In cancers, the expression of PTEN is repressed by many oncogenic miRNAs, including miR-21 [80,81] , miR-221/2 [82] , miR-301 [83] , miR-144 [84] , miR-136 [84] , and miR-19 [85] . SHIP is another lipid phosphatase that inhibits the generation of PIP3.…”
Section: Pi3k/akt Pathwaymentioning
confidence: 99%
“…SF-1 induces proliferation of ACC cell lines and tumour growth in vivo (Doghman et al 2009) and its increased expression has been associated with a worse prognosis (Sbiera et al 2010). SF-1 inhibitors in ACC cell lines inhibited cell proliferation associated with SF-1 overexpression along with steroid hormone oversecretion and CYP21 and CYP17 mRNA expression (Doghman et al 2010).…”
Section: Molecular Profilementioning
confidence: 99%