Evaluation of different protocols for culturing mesenchymal stem cells derived from murine bone marrow

Autor: Mariana Lazarini, Cristiane Okuda Torello, Mariana Ferreira Pissarra, Sara Teresinha Olalla Saad
Přispěvatelé: UNIVERSIDADE ESTADUAL DE CAMPINAS
Rok vydání: 2022
Předmět:
Zdroj: Repositório da Produção Científica e Intelectual da Unicamp
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Repositório Institucional da Unicamp
ISSN: 2531-1379
DOI: 10.1016/j.htct.2021.02.005
Popis: Agradecimentos: This study was supported by Sao Paulo Research Foundation (FAPESP - grants 2017/19674-2, 2017/21801-2), National Council for Scientific and Technological Development (CNPq) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Brasil (CAPES) - Finance Code 001 Abstract: Culturing bone marrow mesenchymal stem cells (BM-MSCs) is a key point in different fields of research, including tissue engineering and regenerative medicine and studies of the bone marrow microenvironment. However, isolating and expanding murine BM-MSCs in vitro has challenged researchers due to the low purity and yield of obtained cells. In this study, we aimed to evaluate five different protocols to culture murine BMMSCs in vitro. Methods: All protocols were based on the adhesion capacity of BM-MSCs to the tissue culture plastic surface and varied in the types of plate, culture media, serum, additional supplementation and initial cell density. Flow cytometry analysis was used to investigate lineage purity after expansion. Results: The expression of CD45 and CD11b was detected in the cultures generated according to all protocols, indicating low purity with the presence of hematopoietic cells and macrophages. The cellular growth rate and morphology varied between the cultures performed according to each protocol. Cells cultured according to protocol 5 (8 £ 107 cells/plate, Roswell Park Memorial Institute (RPMI) culture medium during first passage and then Iscove's Modified Delbecco's Medium (IMDM) culture medium, both supplemented with 9% fetal bovine serum, 9% horse serum, 12mM L-glutamine) presented the best performance, with a satisfactory growth rate and spindle-shape morphology. Conclusion: Our results point out that the purity and satisfactory growth rate of murine BMMSC cultures are not easily achieved and additional approaches must be tested for a proper cell expansion FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO (FAPESP) CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO (CNPQ) COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR (CAPES) Fechado
Databáze: OpenAIRE