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KMID : 0893420090100030197
Journal of Veterinary Science
2009 Volume.10 No. 3 p.197 ~ p.201
Role of protease inhibitors and acylation stimulating protein in the adipogenesis in 3T3-L1 cells
Mohamed Mohamed Soliman

Yakut Abdel-Fattah El-Senosi
Maysara Mahmoud Salem
Omniya Mahmoud Abdel Hamid
Kimura Kazuhiro
Abstract
Treatment of AIDS (HIV) and hepatitis C virus needs protease inhibitors (PI) to prevent viral replication. Uses of PI in therapy are usually associated with a decrease in body weight and dyslipidemia. Acylation stimulating protein (ASP) is a protein synthesized in adipocytes to increase triglycerides biosynthesis, for that the relation of PI and ASP to adipogenesis is tested in this work. ASP expression was increased during 3T3-L1 differentiation and reached a peak at day 8 with cell maturation. Addition of PI during adipocytes differentiation dose dependently and significantly (p £¼ 0.5) inhibited the degree of triglycerides (TG) accumulation. Moreover, presence of ASP (450 ng/mL) in media significantly (p £¼ 0.5) stimulated the degree of TG accumulation and there was additive stimulation for ASP when added with insulin (10 ¥ìg/mL). Finally, when ASP in different doses (Low, 16.7; Medium, 45 and High, 450 ng/mL) incubated with a dose of ¡¿150 PI, ASP partially inhibited the PI-inhibited adipogenesis and TG accumulation. The results in this study show that PI inhibit lipids accumulation and confirm role of ASP in TG biosynthesis and adipogenesis.
KEYWORD
acylation stimulating protein, adipogenesis, 3T3L-1 cells
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