The Benefit of a Human Bone Marrow Stem Cells Concentrate in addition to an Inorganic Scaffold for Bone Regeneration: An In Vitro Study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Torres, J (Autor) Outra; Lopes, A (Autor) Outra; Lopes, MA (Autor) FEUP; Gutierres, M (Autor) Outra; Cabral, AT (Autor) Outra; Fernandes MH (Autor) FMDUP; Monteiro, E (Autor) Outra; van Eck, CF (Autor) Outra; Santos, JD (Autor) FEUP

Revista

Título: BioMed Research International

Vol. 2015 Nº ID 531789

Páginas: 1-10

ISSN: 2314-6133

Editora: Hindawi

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 1 Citação

Classificação Científica

FOS: Ciências médicas e da saúde > Outras ciências médicas

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de biomateriais

Outras Informações

ID Authenticus: P-00A-5X7

DOI: 10.1155/2015/240698

Abstract (EN): Background. This work compares the osteoblastic behaviour of a bone marrow (BM) aspirate and a prepared BM concentrate of nucleated cells associated with a glass reinforced hydroxyapatite composite (GRHC) in a microporous pellet formulation. Methods. BM aspirate (30 mL) was collected during 3 orthopedic surgical procedures, and a concentration system was used to achieve 3 rapid preparations of a concentrate of nucleated cells (3 mL) from the BM aspirates. The BM aspirates (53% cell viability; 2.7x10(6) nucleated cell/mL) and the BM concentrates (76% cell viability; 2x10(7) nucleated cell/mL) were cultured over glass reinforced hydroxyapatite pellets, at the same volume/mass ratio, for 30 days. Cultures performed in standard tissue culture plates were used as control. Results. The colonized BM concentrate/material constructs exhibited a representative osteoblastic proliferation/differentiation pathway, evidenced by a high alkaline phosphatase (ALP) activity, expression of collagen type 1, ALP, BMP-2, M-CSF, RANKL, and OPG, and formation of a calcium phosphate mineralized matrix. A clear improved behaviour was noticed compared to the BM aspirate/material constructs. Conclusions. The results suggest the benefit of using an autologous BM concentrate/material construct in the clinical setting, in bone regeneration applications.

Idioma: Inglês

Tipo (Avaliação Docente): Pedagógica

Nº de páginas: 10