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Evaluation of the cytotoxic effects of the endocrine disruptors Bisphenol A and glyphosate on thyroid cells

Grant number: 20/02167-3
Support Opportunities:Regular Research Grants
Start date: November 01, 2020
End date: October 31, 2023
Field of knowledge:Health Sciences - Medicine - Medical Clinics
Principal Investigator:Laura Sterian
Grantee:Laura Sterian
Host Institution: Faculdade de Ciências Médicas (FCM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated researchers:Maria Izabel Chiamolera ; Natassia Elena Bufalo

Abstract

The increased incidence of differentiated thyroid cancer and autoimmune thyroid diseases, Hashimoto's thyroiditis hypothyroidism in particular, may be related to exposure to environmental factors such as endocrine disruptors (ED). This project aims to investigate the cytotoxic and molecular effects of two ED: Bisphenol A (BPA) and glyphosate (Roundup Original®) on thyroid cells in vitro. BPA is an important component of many products present our daily lives, affects the binding of T3 to its receptor, acts as an indirect antagonist of thyroid hormones and appears to induce hypothyroidism, among other effects. Glyphosate is a widely used herbicide that appears to have a proliferating effect on thyroid cells. However, little is known about the mechanism of action of these ED in thyroid cells. We will use the CCK8 assay to quantify the viability of the cells tested; the Comet Test to identify DNA damage; the Micronucleus Test for cytogenetic damage and Next Generation Sequencing to identify possible genomic effects of these ED. Our research group has been working with cell culture for some time, and the current project involves an ongoing master thesis (Izabela Fernanda Dal' Bó Cruz - Grant CAPES). (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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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)
DAL'BO, IZABELA FERNANDA; TEIXEIRA, ELISANGELA SOUZA; RABI, LARISSA TEODORO; PERES, KARINA COLOMBERA; NASCIMENTO, MATHEUS; CHIAMOLERA, MARIA IZABEL; MAXIMO, VALDEMAR; BUFALO, NATASSIA ELENA; WARD, LAURA STERIAN. Alternation between toxic and proliferative effects of Roundup (R) on human thyroid cells at different concentrations. FRONTIERS IN ENDOCRINOLOGY, v. 13, p. 10-pg., . (20/02167-3)