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In vitro evaluation of cellular migration and invasion in breast Cancer in response to treatment with metiformin and Y27632 after induction process of epithelial mesenchymal transition

Grant number: 12/15592-8
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2012
Effective date (End): November 30, 2013
Field of knowledge:Agronomical Sciences - Veterinary Medicine
Principal Investigator:Debora Aparecida Pires de Campos Zuccari
Grantee:Michel Raineri Haddad
Host Institution: Faculdade de Medicina de São José do Rio Preto (FAMERP). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). São José do Rio Preto , SP, Brazil


Breast Cancer is the worldwide most common neoplasia in women, and its malignancy is centered on its highly invasive and metastatic actions. The expression of ROCK-1 is associated with malignant, whereas inhibition of this signaling molecule results in significant suppression of tumor metastasis. Likewise, the transforming growth factor-beta (TGF-²) has been linked to its power to induce epithelial-mesenchymal transition (EMT), which provides greater mobility and an invasive phenotype for these tumor cells. However, new therapeutic options have been used to inhibit these processes, in which metformin, a drug used to treat type 2 diabetes, has shown good results in research on breast cancer, reducing its incidence and prognosis favoring, through mechanisms not completely understood, but involving, among many other markers, TGF-². From the effect of TGF-² and protein expression of ROCK-1 in promoting cancer malignancy, we intend to evaluate the effects of metformin with or without the ROCK inhibitor-1, Y27632, and alternative therapies for inhibition of metastasis breast cancer in vitro. (AU)

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