Light-emitting diode effects on combined decellularization of tracheae. A novel approach to obtain biological scaffolds

Light-emitting diode effects on combined decellularization of tracheae. A novel approach to obtain biological scaffolds

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.

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Bibliographic Details
Main Authors: 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
Format: Digital revista
Language:English
Published: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502014000800485
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Summary: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.

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