METHOD AND PROCESS FOR IN VITRO DECELLULARIZATION OF CARDIOVASCULAR TISSUE
The present invention refers to a method and process for in vitro decellularization of cardiovascular tissue, such as heart valves, pulmonary arteries, large vessels, veins, and peripheral arterial networks. It consists of a) subjecting the cardiovascular tissue to a recirculation system of Decellul...
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Zusammenfassung: | The present invention refers to a method and process for in vitro decellularization of cardiovascular tissue, such as heart valves, pulmonary arteries, large vessels, veins, and peripheral arterial networks. It consists of a) subjecting the cardiovascular tissue to a recirculation system of Decellularizing hypotonic solutions in a stepwise concentration gradient to lyse cells from the plasma membrane but keeping the extracellular matrix intact, b) subjecting the cardiovascular tissue to a recirculation system of nucleic acid degrading enzymes to eliminate cellular debris in the tissue, and c) submitting the cardiovascular tissue to a recirculation system of isotonic solutions to remove toxic residues and preserve the structural integrity of the tissue.
La presente invención está referida a un método y proceso para descelularización in vitro de tejido cardiovascular tal como válvulas cardíacas, arterias pulmonares, grandes vasos, venas y redes arteriales periféricos, caracterizado porque consiste en a) someter el tejido cardiovascular a un sistema de recirculación de soluciones hipotónicas descelularizantes en "n" gradiente de concentración de manera escalonada para lisar las células de la membrana plasmática; pero manteniendo íntegra la matriz extracelular; b) someter el tejido cardiovascular a un sistema de recirculación de enzimas degradativas de ácidos nucleicos para eliminar residuos celulares en el tejido; y c) someter el tejido cardiovascular a un sistema de recirculación de soluciones isotónicas para remover residuos tóxicos y preservar la integridad estructural del tejido. |
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