Ca2+-Sensitization of contraction in the h1 calponin-deficient smooth muscle.
Jpn J Pharmacol
; 84(4): 474-5, 2000 Dec.
Article
en En
| MEDLINE
| ID: mdl-11202623
ABSTRACT
Role of h1 calponin on Ca2+-sensitivity of smooth muscle contraction was investigated using h1 calponin gene-deficient mice (CP -/-) and wild type mice (CP +/+). PGF2. induced a comparable force in intact aorta of CP +/+ and CP -/-. DPB showed similar effects to PGF2alpha. In membrane-permeabilized ileal smooth muscle, PDBu enhanced Ca2+-sensitivity of contraction comparably in CP +/+ and CP -/-. GTPgamma-S showed similar effects. Our results suggest that h1 calponin does not regulate Ca2+-sensitivity in the contractile mechanism of smooth muscle.
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Banco de datos:
MEDLINE
Asunto principal:
Proteínas de Unión al Calcio
/
Cloruro de Calcio
/
Contracción Muscular
/
Músculo Liso
Límite:
Animals
Idioma:
En
Revista:
Jpn J Pharmacol
Año:
2000
Tipo del documento:
Article
País de afiliación:
Japón