Endoplasmic Reticulum Stress Links Dyslipidemia to Inhibition of Proteasome Activity and Glucose Transport by HIV Protease Inhibitors

2005 ◽  
Vol 67 (6) ◽  
pp. 1909-1919 ◽  
Author(s):  
Rex A. Parker ◽  
Oliver P. Flint ◽  
Ruth Mulvey ◽  
Carolina Elosua ◽  
Faye Wang ◽  
...  
2002 ◽  
Vol 172 (1) ◽  
pp. 155-162 ◽  
Author(s):  
S Ranganathan ◽  
PA Kern

Treatment of HIV infection using protease inhibitors is frequently associated with lipodystrophy and impaired lipid and glucose metabolism. We examined the effect of saquinavir, one of the protease inhibitors, on lipid metabolism and glucose transport in cultured adipocytes. Saquinavir inhibited lipoprotein lipase (LPL) activity in 3T3-F442A and 3T3-L1 adipocytes. The inhibition of LPL was 81% at a concentration of 20 microg/ml. Another closely related drug, indinavir, had a small inhibitory effect. Saquinavir also inhibited the biosynthesis of lipids from [(14)C]-acetate. Saquinavir increased the lipolysis. Saquinavir had no significant effect on the cellular protein synthesis or protein content. Saquinavir increased the basal glucose transport threefold and decreased insulin-stimulated glucose transport by 35%. These studies suggest that some HIV protease inhibitors have direct effects on lipid and glucose metabolism. This inhibition of lipogenesis and glucose transport may explain some of the lipodystrophy, dyslipidemia and disturbed glucose metabolism with the clinical use of these drugs.


2004 ◽  
Vol 4 (2) ◽  
pp. 137-152 ◽  
Author(s):  
Jana Prejdova ◽  
Milan Soucek ◽  
Jan Konvalinka

2010 ◽  
Vol 6 (4) ◽  
pp. 269-282 ◽  
Author(s):  
Subhash C. Basak ◽  
Denise Mills ◽  
Rajni Garg ◽  
Barun Bhhatarai

1995 ◽  
Vol 5 (5) ◽  
pp. 459-464 ◽  
Author(s):  
G.S. Bisacchi ◽  
S. Ahmad ◽  
M. Alam ◽  
A. Ashfaq ◽  
J. Barrish ◽  
...  

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