Otro
Light-emitting diode effects on combined decellularization of tracheae. A novel approach to obtain biological scaffolds
Registro en:
Acta Cirurgica Brasileira. Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, v. 29, n. 8, p. 485-492, 2014.
0102-8650
10.1590/S0102-86502014000800002
S0102-86502014000800485
S0102-86502014000800485.pdf
Autor
Evaristo, Thaiane Cristine
Cruzalves, Flávia Cilene Maciel Da
Moroz, Andrei
Mion, Woner
Acorci-valério, Michele Janegitz
Felisbino, Sérgio Luis
Rossi-ferreira, Rosana
Ruiz Júnior, Raul Lopes
Deffune, Elenice
Resumen
PURPOSE:To obtain a decellularized tracheal scaffold associating traditional approaches with the novel light-emitting diode (LED) proposal.METHODS: This study was performed with New Zealand adult rabbits weighing 3.0 - 4.0 kg. Different protocols (22) were used combining physical (agitation and LED irradiation), chemical (SDS and Triton X-100 detergents), and enzymatic methods (DNase and RNase).RESULTS: Generally, the cells surrounding soft tissues were successfully removed, but none protocol removed cells from the tracheal cartilage. However, longer protocols were more effective. The cost-benefits relation of the enzymatic processes was not favorable. It was possible to find out that the cartilaginous tissue submitted to the irradiation with LED 630nm and 475 nm showed an increased number of gaps without cells, but several cells were observed to be still present.CONCLUSION: The light-emitting diode is a promising tool for decellularization of soft tissues. 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)