Regulation of type I collagen gene expression in bone.
Connect Tissue Res
; 31(4): 261-4, 1995.
Article
en En
| MEDLINE
| ID: mdl-15612364
The regulation of COL1A1 gene expression in bone was studied by measuring the activity of type I collagen promoter fusion genes (ColCAT) in permanently transfected osteoblastic cells and calvariae from transgenic animals. The basal activity of ColCAT fusion genes in transfected cells is mediated by DNA sequences between -3.5 to -2.3 kb while expression in vivo requires sequences between -2.3 and -1.7 kb. Parathyroid hormone, 1,25-dihydroxyvitamin D3 and interleukin-1 decrease the activity of ColCAT fusion genes in osteoblastic cells and transgenic calvariae. Because there may be differences between the expression of ColCAT fusion genes in cultured cells and intact bone, it will be important to compare data obtained from transfected cells with an in vivo model such as calvariae from transgenic mice.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Vitamina D
/
Huesos
/
Desarrollo Óseo
/
Regulación del Desarrollo de la Expresión Génica
/
Colágeno Tipo I
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Connect Tissue Res
Año:
1995
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Reino Unido