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Tumorigenic reversion properties using 5-aza-dC and TSA on DNA methylation and breast cancer progression

Grant number: 16/02730-4
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): February 10, 2017
Effective date (End): January 09, 2018
Field of knowledge:Health Sciences - Medicine - Maternal and Child Health
Principal researcher:Daniel Guimarães Tiezzi
Grantee:Fernanda Marques Rey
Supervisor abroad: Julia Santucci Pereira
Home Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Research place: Fox Chase Cancer Center (FCCC), United States  
Associated to the scholarship:13/04659-7 - Interaction with mesenchymal stem cell and breast cancer lineage cells and evaluation of biological behavior, BP.DR


Breast cancer is a high prevalent and incident disease. Changes in the patterns of DNA methylation are related to the promotion and development of breast cancer. The patterns of methylation in elements of the apoptosis pathway are associated with disease progression, survival and metastasis. The identification of methylation changes induced by specific drugs in breast cancer cells, particularly in the cancer stem cells (CSC) population, in association with mesenchymal stem cells is unknown. The aim of this study is to research and understand gene methylation associated with apoptosis, evaluate markers in disease progression and the biological meaning of the different methylation patterns. For that, we will accomplish cells culture of specific invasive and non invasive breast cancer cells and with the co-culture with mesenchymal stem cells, evaluating the modifications in viability, apoptosis and expression modifications genes relationed with apoptosis after expose on 5 aza-dC and TSA drugs. The collaboration project with the Irma H. Russo, MD, Breast Cancer Research Laboratory (BCRL) at Fox Chase Cancer Center - Temple University Health System, directed by Jose Russo, will provide cutting edge tools and the exchange of know-how that will enable us to describe the molecular pathways that influence epigenetic effects induced by drug treatments on reversion of tumorigenic properties. The current proposal is a complement to the project "Interaction of mesenchymal stem cell with breast cancer lineage cells and evaluation of their biological behavior", FAPESP grant number 13/04659-7. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
VIDOTTO, THIAGO; TIEZZI, DANIEL GUIMARAES; SQUIRE, JEREMY A. Distinct subtypes of genomic PTEN deletion size influence the landscape of aneuploidy and outcome in prostate cancer. MOLECULAR CYTOGENETICS, v. 11, JAN 3 2018. Web of Science Citations: 7.

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