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Incidence of 4-nitroquinoline 1-oxide (4NQO)- induced oral squamous cell carcinoma in rats with sympathetic nervous system hyperactivity

Grant number: 14/25393-8
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): March 01, 2015
Effective date (End): April 30, 2018
Field of knowledge:Health Sciences - Medicine
Principal Investigator:Daniel Galera Bernabé
Grantee:Felipe Yudi Kabeya Lopes
Host Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil


Recent evidences show that sympathetic nervous system (SNS) hyperactivation induced by chronic stress can influence cancer evolution. In the present study we will use Spontaneous Hypertensive Rats (SHR), a strain of rats with sympathetic nervous system hyperactivity to analyze the effects of sympathetic hiperactivity on the incidence of 4NQO-induced oral squamous cell carcinoma (OSCC). 30 male wistar rats and 30 male SHR rats will be submitted to oral carcinogenesis with 4NQO for 5 months when they will be euthanized to assess the incidence and tongue SCC invasion. To analyze the effects of the sympathetic hiperactivity on the progression tumor-related genes, IL-6, MMP-2, MMP-9, VEGF and p16 expression in tumors will be evaluated by real time PCR. (AU)

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