Role of IN-1233 in the prevention of neointimal hyperplasia after stent placement in a rat artery model.
J Vasc Interv Radiol
; 22(9): 1321-8, 2011 Sep.
Article
en En
| MEDLINE
| ID: mdl-21515073
ABSTRACT
PURPOSE:
To evaluate the efficacy of an activin receptor-like kinase (ALK) 5 inhibitor, IN-1233, for the prevention of neointimal hyperplasia after bare stent placement in a rat common iliac artery (CIA) model. MATERIALS ANDMETHODS:
All experiments were approved by the committee of animal research. A self-expanding metallic bare stent (2 mm × 6 mm) was inserted into the left CIA of 26 Sprague-Dawley male rats (300-360 g) under fluoroscopic guidance. IN-1233 was injected via the intraperitoneal route daily in 13 rats for 8 weeks after stent placement (group A); the other 13 rats underwent stent placement only (group B). Angiography was performed immediately and 4 weeks and 8 weeks after stent placement. Rats were sacrificed at 8 weeks after stent placement, and histologic findings were obtained. The neointimal area (NA), percentage of neointimal hyperplasia (%NH), and neointimal-to-medial area ratio (N/M) were assessed and compared between the two groups.RESULTS:
Stent placement was technically successful. In 25 rats, arteries with stent placement were angiographically patent, whereas 1 rat in group B had an occlusion. The NA (0.31 mm(2) ± 0.09 vs 0.56 mm(2) ± 0.17; P < .001), the %NH (26.16% ± 8.75 vs 44.71% ± 17.75; P < .001) and the N/M (1.93 ± 0.77 vs 4.77 ± 2.26; P < .001) were significantly decreased in group A compared with group B.CONCLUSIONS:
IN-1233 was shown in this study to be effective for the prevention of neointimal hyperplasia after bare metallic stent placement in a rat CIA model.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Quinolinas
/
Benzamidas
/
Stents
/
Túnica Íntima
/
Inhibidores de Proteínas Quinasas
/
Procedimientos Endovasculares
/
Arteria Ilíaca
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
J Vasc Interv Radiol
Asunto de la revista:
ANGIOLOGIA
/
RADIOLOGIA
Año:
2011
Tipo del documento:
Article