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In vivo interleukin-10 gene transfer down-regulates myocardial matrix metalloproteinase and myocardial collagen expressions in rats with acute myocardial infarction / 中华心血管病杂志
Chinese Journal of Cardiology ; (12): 243-248, 2008.
Artículo en Chino | WPRIM | ID: wpr-243805
ABSTRACT
<p><b>OBJECTIVE</b>We investigated the in vivo effects of recombinant adenovirus-associated virus type-2 (AAV-2) mediated interleukin-10 (IL-10) gene transfer on the expression of matrix metalloproteinase (MMP)-2, 9, tissue inhibitor of metalloproteinase (TIMP)-1, collagen type I and type III in a rat acute myocardial infarction model.</p><p><b>METHOD</b>Male Sprague-Dawley (SD) rats were randomly divided into three groups (each n = 6) sham operation group, MI/AAV2 group, and MI/AAV2-IL-10 group (10(10) vg/ml x 0.1 ml injection at peri-infarct regions immediately post MI). Five days later, the expressions of MMP-2 and MMP-9 were measured by RT-PCR, Western blot and zymography. The expression of TIMP-1 was measured by RT-PCR and Western blot. Collagen type I and type III were assessed by RT-PCR and immunohistochemical stain.</p><p><b>RESULTS</b>The myocardial expressions of MMP-2, MMP-9 and collagen contents in MI/AAV2 group were significantly increased than those in sham operation group. Myocardial expressions of MMP-2, MMP-9 were significantly decreased and the expression of TIMP-1 significantly increased in the MI/AAV2-IL-10 group than those in MI/AAV2 group. Moreover, the expressions of collagen type I, collagen type III and the ratio of I/III collagen in border zones of infarcted myocardium were decreased by 47.6% (P < 0.01), 23.6% (P < 0.05), and 17.9% (P < 0.05) respectively, while the expression of TIMP-1 increased by 73.1%(P < 0.05) in MI/AAV2-IL-10 group compared to MI/AAV2 group.</p><p><b>CONCLUSION</b>In vivo myocardial IL-10 transfer reduced myocardial MMP and collagen expression and increasing the TIMP expression.</p>
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Transfección / Terapia Genética / Expresión Génica / Interleucina-10 / Ratas Sprague-Dawley / Inhibidor Tisular de Metaloproteinasa-1 / Remodelación Ventricular / Metaloproteinasa 2 de la Matriz / Metaloproteinasa 9 de la Matriz / Matriz Extracelular Tipo de estudio: Estudio pronóstico Límite: Animales Idioma: Chino Revista: Chinese Journal of Cardiology Año: 2008 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Transfección / Terapia Genética / Expresión Génica / Interleucina-10 / Ratas Sprague-Dawley / Inhibidor Tisular de Metaloproteinasa-1 / Remodelación Ventricular / Metaloproteinasa 2 de la Matriz / Metaloproteinasa 9 de la Matriz / Matriz Extracelular Tipo de estudio: Estudio pronóstico Límite: Animales Idioma: Chino Revista: Chinese Journal of Cardiology Año: 2008 Tipo del documento: Artículo