Regulation of elastin synthesis in developing sheep nuchal ligament by elastin mRNA levels.
نویسندگان
چکیده
منابع مشابه
Appearance of chemotactic responsiveness to elastin peptides by developing fetal bovine ligament fibroblasts parallels the onset of elastin production
We studied chemotaxis to elastin peptides by bovine ligamentum nuchae fibroblasts to determine whether there is a developmental association between chemotactic responsiveness to elastin and expression of the elastin phenotype. Undifferentiated ligament cells demonstrate chemotactic responsiveness to platelet-derived growth factor and fibronectin, known chemoattractants for fibroblasts, but do n...
متن کاملSustained changes in lung expansion alter tropoelastin mRNA levels and elastin content in fetal sheep lungs.
Our objective was to determine the effects of sustained alterations in fetal lung expansion on pulmonary elastin synthesis. In fetal sheep, lung expansion was either decreased between 111 and 131 days' gestation (term approximately 147 days) by tracheal drainage or increased for 2, 4, 7, or 10 days by tracheal obstruction, ending at 128 days' gestation. Lung tropoelastin mRNA levels were assess...
متن کاملSmad about elastin regulation.
Elastin is crucial to pulmonary function, yet it appears in the pulmonary vasculature and interstitium late in gestation in large mammals and postnatally in rodents (1). Deletion of the ELN gene in mice produces obstructive arterial disease (2, 3) and disrupts terminal airway branching as well as alveogenesis (4); moreover, several forms of elastic tissue disease collectively known as cutis lax...
متن کاملGlucocorticoids stimulate elastin production in differentiated bovine ligament fibroblasts but do not induce elastin synthesis in undifferentiated cells.
Glucocorticoid treatment of fibroblasts from late gestation fetal bovine ligamentum nuchae resulted in a time- and dose-dependent selective increase in elastin production. Tropoelastin levels increased 2-3-fold in the presence of 10 nM dexamethasone while total protein synthesis and the rate of cell division decreased with glucocorticoid exposure. Two tropoelastin bands of molecular weights 64,...
متن کاملElastin synthesis by ligamentum nuchae fibroblasts: effects of culture conditions and extracellular matrix on elastin production
Fetal bovine ligamentum nuchae fibroblasts maintained in culture synthesized soluble elastin but were unable to form the insoluble elastic fiber. Secreted elastin precursors accumulated in culture medium and were measured using a radioimmunoassay for elastin. When elastin production was examined in ligament tissue from fetal calves of various gestational ages, cells from tissue taken during the...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1982
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)68259-1