Multiple effects of serum low-density lipoprotein on cultured human fibroblasts

Autor: L O Wosu, M J Spain, N Kalant
Rok vydání: 1979
Předmět:
Zdroj: Canadian Journal of Biochemistry. 57:684-691
ISSN: 0008-4018
DOI: 10.1139/o79-086
Popis: The effects of serum low-density lipoproteins (LDL) were studied in cultures of human skin fibroblasts grown in medium supplemented with human serum deficient in lipoproteins and in platelet factor. The LDL led to a temporary increase in the rate of cell replication, to increases in the cell content of protein and cholesterol, to an increase in average cell size, and to an increased secretion of glycosaminoglycans. The increases in cholesterol and protein were proportional to the increase in cell size, suggesting that the additional protein and cholesterol were of a structural, rather than a storage, nature. The increase in cell protein during the first few days of exposure to LDL was due to a decrease in the rate of protein degradation. Ultrafiltration of the serum to remove substances of molecular weight
Databáze: OpenAIRE