Cell cycle analysis of human dermal fibroblasts cultured on or in hydrated type I collagen lattices.
Arch Dermatol Res
; 282(4): 258-62, 1990.
Article
em En
| MEDLINE
| ID: mdl-2372217
ABSTRACT
The proliferation and cell cycle phase composition of human dermal fibroblasts cultured on or in type I collagen lattices (reconstituted dermis model) were examined. On collagen lattices, as compared with conventional cultures on plastic dishes, the proliferation of human dermal fibroblasts was suppressed, being arrested at about one-half the saturation density after 10 days of culture. In collagen lattices, proliferation was further suppressed, being nearly arrested within 4-7 days of culture. Cells were analyzed for cell cycle phases by two-color flow cytometry using DNA staining and S phase cell staining with FITC-conjugated antibromodeoxyuridine antibody. After 5 days of culture, the number of S phase cells on collagen lattices was 49.3% of that on plastic dishes, with an increase in G0G1 phase cells of 79.8%. In collagen lattices, the number of S phase cells was very small (4.3% of all cells), and most of the cells accumulated in G0G1 phase. These findings suggest that the cell cycle of fibroblasts is arrested at G0G1 phase by their interaction with collagen. On the basis of these results, the reconstituted dermis model using collagen lattice is considered to be analogous to the dermis in vivo with respect to cell growth and cell cycle phase composition.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pele
/
Ciclo Celular
/
Colágeno
/
Fibroblastos
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Arch Dermatol Res
Ano de publicação:
1990
Tipo de documento:
Article
País de afiliação:
Japão