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Efficacy of the novel dual PI3-kinase/mTOR inhibitor NVP-BEZ235 in a preclinical model of adrenocortical carcinoma.

Abstract：

:Adrenocortical cancer is a rare malignancy for which current pharmacological therapies are still insufficient. We tested the effect of a novel PI3 kinase - mammalian target of rapamycin dual inhibitor (NVP-BEZ235) on proliferation of the H295R adrenocortical cancer cell line in vitro and grown as xenografts in immunodeficient mice. NVP-BEZ235 was able to significantly inhibit phosporylation of Akt kinase and S6 ribosomal protein in H295R cells and to significantly reduce their proliferation in vitro and xenograft growth in vivo. The drug also induced activation of Erk phosphorylation, which could be inhibited by simultaneous treatment with the Erk inhibitor FR180204. This latter drug synergized with NVP-BEZ235 in the inhibition of H295R proliferation in vitro. Our data suggest that dual PI3K/mTOR inhibitors may represent a useful pharmacological tool in the therapy of advanced adrenocortical cancer and that simultaneous inhibition of both Erk and PI3K - mTOR pathways may be required to obtain a higher antiproliferative effect in this type of tumor.

journal_name

Mol Cell Endocrinol

journal_title

Molecular and cellular endocrinology

authors

Doghman M,Lalli E

doi

10.1016/j.mce.2012.08.014

subject

Has Abstract

pub_date

2012-11-25 00:00:00

pages

101-4

issue

1-2

eissn

0303-7207

issn

1872-8057

pii

S0303-7207(12)00409-1

journal_volume

364

pub_type

杂志文章

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