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Relationship of cell growth to collagen synthesis in glucocorticoid treated a/j and c57bl6/j neonatal mouse dermal fibroblasts

par Verbruggen, Leon A;Orloff, Serge ;Velidi Hanumantha, Rao ;Salomon, David D.S.
Référence Scandinavian journal of rheumatology, 12, 4, page (360-366)
Publication Publié, 1983

Article révisé par les pairs

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Résumé :

Primary cultures of neonatal dermal fibroblasts from two strains of mice (A/J and C57BL6/J) were utilized as an in vitro system to investigate the effects of glucocorticoids on cell growth and collagen synthesis. Protein and DNA synthesis were lower in untreated (control) A/J fibroblasts than in C57BL6/J fibroblasts. Treatment with glucocorticoids for 4 days resulted in dose-dependent inhibition of [3H]thymidine incorporation into DNA and a reduction in collagen synthesis. Collagen synthesis was differentially more susceptible to glucocorticoids than was total protein synthesis. Neonatal dermal fibroblasts obtained from A/J mice were more sensitive to glucocorticoids than were cells from C57BL6/J mice. Reduction in collagen production by anti-inflammatory steroids in this system may be related to adverse effects observed in vivo following treatment with these steroids. © 1983 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.