Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

EGI-1 cell line treated with Saracatinib vs EGI-1 cell line untreated; EGI-1 xenograft treated with Saracatinib vs EGI-1 untreated

ABSTRACT: Biliary tract carcinoma (BTC) has a poor prognosis due to limited treatment options. There is therefore urgent need to identify new targets and to design innovative therapeutic approaches. Among potential candidate molecules, we evaluated the non-receptor tyrosine kinase Src, observing promising antitumor effects of its small molecule inhibitor Saracatinib in BTC preclinical models. The presence of an active Src protein was investigated by immunohistochemistry in 19 surgical samples from BTC patients. Upon Saracatinib treatment, the phosphorylation of Src and of its downstream transducers was evaluated in the BTC cell lines TFK-1, EGI-1, HuH28 and TGBC1-TKB. The effect of Saracatinib on proliferation and migration was analyzed in these same cell lines, and its antitumor activity was essayed in EGI-1 mouse xenografts. Saracatinib-modulated transcriptome was profiled in EGI-1 cells and in tumor samples of the xenograft model. Src was activated in about 80% of the human BTC samples. In cultured BTC cell lines, low-dose Saracatinib counteracted the activation of Src and of its downstream effectors, increased the fraction of cells in G0/G1 phase, and inhibited cell migration. At high concentrations (median dose from 2.26 to 6.99 µM), Saracatinib was also capable of inhibiting BTC cell proliferation. In vivo, Saracatinib treatment resulted in delayed tumor growth, associated with an impaired vascular network. We here provide a demonstration that the targeted inhibition of Src kinase by Saracatinib is of therapeutic benefit in preclinical models of BTC. We propose our results as a basis for the design of Saracatinib-based clinical applications. EGI-1 cell line treated with Saracatinib at the dose of 10 µM vs EGI-1 cell line untreated; EGI-1 xenograft treated with Saracatinib at the dose of 25 mg/Kg/die vs EGI-1 xenograft untreated Transcriptional alteration mediated by Saracatinib in vitro and in vivo

ORGANISM(S): Homo sapiens

SUBMITTER: caterina Peraldo Neia

PROVIDER: E-GEOD-36622 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Antitumor activity of Src inhibitor saracatinib (AZD-0530) in preclinical models of biliary tract carcinomas.

Cavalloni Giuliana G Peraldo-Neia Caterina C Sarotto Ivana I Gammaitoni Loretta L Migliardi Giorgia G Soster Marco M Marchiò Serena S Aglietta Massimo M Leone Francesco F

Molecular cancer therapeutics 20120327 7

Biliary tract carcinoma (BTC) has a poor prognosis due to limited treatment options. There is, therefore, an urgent need to identify new targets and to design innovative therapeutic approaches. Among potential candidate molecules, we evaluated the nonreceptor tyrosine kinase Src, observing promising antitumor effects of its small-molecule inhibitor saracatinib in BTC preclinical models. The presence of an active Src protein was investigated by immunohistochemistry in 19 surgical samples from pat ...[more]

PMID: 22452946

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Dataset Information

EGI-1 cell line treated with Saracatinib vs EGI-1 cell line untreated; EGI-1 xenograft treated with Saracatinib vs EGI-1 untreated

Publications

Antitumor activity of Src inhibitor saracatinib (AZD-0530) in preclinical models of biliary tract carcinomas.

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