The collaboration with the Cell Biology Research Group at IPATIMUP - Institute of Pathology and Molecular Immunology of the University of Porto (Porto, Portugal), along with the Experimental Endocrinology Research Group (LEEx) at ICB, UFRJ, began in 2013 with the technical-scientific visit of Prof. Leandro Miranda-Alves.

In 2014, a project was approved under the Science Without Borders Program/CAPES, titled "Impact of Endocrine Disruptors on zebrafish with BRAF600E mutation conditioned to the thyroid", coordinated in Brazil by Prof. Leandro Miranda-Alves, a permanent faculty member of the Endocrinology Postgraduate Program, and in Portugal by Prof. Paula Soares.

As the project progressed, partnerships for project development were also established with the Endocrine Physiology Laboratory Doris Rosenthal-LFEDR, led at the time by Prof. Denise Pires de Carvalho (IBCCF, UFRJ), with the group of Prof. Mário Vaisman (School of Medicine, UFRJ), Prof. Alice Dutra Violante (School of Medicine, UFRJ), and also with the group of Prof. Fernanda Vaisman (INCA), all permanent advisors of the Endocrinology Postgraduate Program.

In this regard, these longstanding partnerships have been highly successful, highlighted by:

1) Exchange and co-supervision of doctoral students;
2) Exchange of faculty/researchers;
3) Publications in high-impact international journals in the fields of Endocrinology, Oncobiology, and Environmental Toxicology;
4) Participation of Prof. Paula Soares in the I, II, and III Brazilian Meeting on Endocrine Disruptors (EBDE) organized by faculty members of the Endocrinology Postgraduate Program.