Effect of cell therapy with bone marrow mesenchymal stem cells on bone regeneration

• Grant number: 18/09934-0
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): August 01, 2018
• Effective date (End): July 31, 2019
• Field of knowledge: Health Sciences - Dentistry - Oral and Maxillofacial Surgery
• Principal researcher: Adalberto Luiz Rosa
• Grantee: Yvana Maria Murto Leguizamón
• Home Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

Bone tissue displays a remarkable regenerative potential, however, in some clinical situations, the extent of the bone defects surpass this regeneration capacity demanding additional treatments. Cell therapy has been recognized as a good alternative but it is in need of deep investigation before becoming an effective treatment to regenerate bone defects. The aim of this study is to assess the potential of bone marrow mesenchymal stem cells (BM-MSCs) in bone regeneration. BM-MSCs will be harvested from rat femurs, cultured and expanded before being directly injected into 5-mm rat calvarial defects as follow: one injection 2 weeks after defect creation an two injections, 2 and 6 weeks, respectively, after defect creation. Controls will be bone defects treated with 1 or 2 injections of the vehicle (PBS) without cells. Following 8 weeks from the first injection, the animals will be euthanized and bone tissue formation evaluated by microtomography and histological analyses. Data will be evaluated by adherence to the normal distribution before determining the suitable estatistic test.