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Elastasa de neutrófilos humana y surfactante pulmonar en el síndrome de distrés respiratorio agudo.
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- Additional Information
- Alternate Title:
Human neutrophil elastase and lung surfactant in acute respiratory distress syndrome.
- Abstract:
In the context of several lung diseases such as cystic fibrosis, acute lung injury (ALI) and acute respiratory distress syndrome (ARDS), several proteases are released from infiltrate neutrophils on alveolar space, where the human neutrophil elastase (HNE) play a major role. Based on this concept, therapeutic approaches have been developed in order to inhibit the elastolytic activity. In this sense, this article summarizes, first, some pathophysiological functions of neutrophil elastase in ALI/ARDS and their relationship with the lung surfactant and the potential therapeutic use of elastase inhibitors as well. The results show that although the pathophysiology of ALI/ARDS is complex, several evidences shows a direct relationship between neutrophil elastase and ALI, where is observed a increasing of protease concentration in ALI animal model as well as in patients. On the other hand, due to unbalance protease/endogenous inhibitors, the pharmacological assays and the clinical application of neutrophil elastase inhibitors are being researched with promising results. [ABSTRACT FROM AUTHOR]
- Abstract:
En el desarrollo de algunas enfermedades inflamatorias pulmonares, tales como la fibrosis cística, el daño agudo del pulmón (ALI, del inglés Acute Lung Injury) y el síndrome de distrés respiratorio agudo (SDRA), se liberan numerosas proteasas a partir de neutrófilos infiltrados en el espacio alveolar; entre ellas se distingue la elastasa de neutrófilos humana (ENH). Con el objetivo de inhibir la actividad elastolítica, se han desarrollado estrategias terapéuticas. Este artículo revisa algunas de las funciones fisiopatológicas de la ENH en el ALI/SDRA, y su relación con el sistema surfactante pulmonar, así como el potencial terapéutico de los inhibidores de proteasas. Los resultados postulan que, aunque la fisiopatología de estas enfermedades es compleja, muchos ensayos demuestran una relación directa entre la ENH y el ALI/SDRA: se ha observado un incremento de la concentración de esta proteasa en modelos animales con ALI, así como en pacientes. Al mismo tiempo, debido al desequilibrio proteasa/inhibidores endógenos, se ha efectuado la evaluación farmacológica y se investiga la aplicación clínica de inhibidores de la ENH, así como su posible asociación con las preparaciones de surfactante pulmonar exógeno, y se tienen resultados prometedores. [ABSTRACT FROM AUTHOR]
- Abstract:
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