Aggregates of modified low-density lipoproteins induce lipid accumulation in intimal cells of the human aorta in vitro

1990 ◽  
Vol 110 (1) ◽  
pp. 882-885
Author(s):  
V. V. Tertov ◽  
I. A. Sobenin ◽  
Z. A. Gabbasov ◽  
E. G. Popov ◽  
A. N. Orekhov
Keyword(s):  
Lipid Accumulation ◽  
Low Density Lipoproteins ◽  
Human Aorta ◽  
Low Density ◽  
Modified Low Density Lipoproteins

Nonenzymatic glycosylation of low density lipoproteins in vitro. Effects on cell-interactive properties

Diabetes ◽  
1981 ◽  
Vol 30 (10) ◽  
pp. 875-878 ◽  
Author(s):  
B. Gonen ◽  
J. Baenziger ◽  
G. Schonfeld ◽  
D. Jacobson ◽  
P. Farrar
Keyword(s):  
Low Density Lipoproteins ◽  
Low Density ◽  
Nonenzymatic Glycosylation ◽  
In Vitro Effects

scholarly journals Selective modification of apoB-100 in the oxidation of low density lipoproteins by myeloperoxidase in vitro

1999 ◽  
Vol 40 (4) ◽  
pp. 686-698 ◽  
Author(s):  
Chao-yuh Yang ◽  
Zi-Wei Gu ◽  
Manlan Yang ◽  
Shen-Nan Lin ◽  
Anthony J. Garcia-Prats ◽  
...  
Keyword(s):  
Low Density Lipoproteins ◽  
Low Density

scholarly journals Catabolism of human very low density lipoproteins in vitro: a fluorescent phospholipid method for monitoring lipolysis.

1981 ◽  
Vol 22 (2) ◽  
pp. 382-386
Author(s):  
M R Taskinen ◽  
J D Johnson ◽  
M L Kashyap ◽  
K Shirai ◽  
C J Glueck ◽  
...  
Keyword(s):  
Low Density Lipoproteins ◽  
Low Density ◽  
Very Low Density Lipoproteins

scholarly journals Sirtuin 3 Restores Synthesis and Secretion of Very Low-Density Lipoproteins in Cow Hepatocytes Challenged with Nonesterified Fatty Acids In Vitro

2021 ◽  
Vol 8 (7) ◽  
pp. 121
Author(s):  
Dongmei Xing ◽  
Baogen Wang ◽  
Hong Lu ◽  
Tao Peng ◽  
Jianming Su ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Low Density Lipoproteins ◽  
Mrna Abundance ◽  
Low Density ◽  
Sirtuin 3 ◽  
Very Low Density Lipoproteins ◽  
Nonesterified Fatty Acids ◽  
Tag Accumulation

Fatty liver is closely associated with elevated concentrations of nonesterified fatty acids (NEFA) and a low level of very low-density lipoproteins (VLDL) in blood of dairy cows. High NEFA inhibit the VLDL synthesis and assembly, and cause hepatic triacylglycerol (TAG) deposition. Sirtuin 3 (SIRT3), a mitochondrial deacetylase, antagonizes NEFA-induced TAG accumulation through modulating expressions of fatty acid synthesis and oxidation genes in cow hepatocytes. However, the role of SIRT3 in the VLDL synthesis and assembly was largely unknown. Here we aimed to test whether SIRT3 would recover the synthesis and assembly of VLDL in cow hepatocytes induced by high NEFA. Primary cow hepatocytes were isolated from 3 Holstein cows. Hepatocytes were infected with SIRT3 overexpression adenovirus (Ad-SIRT3), SIRT3-short interfering (si) RNA, or first infected with Ad-SIRT3 and then incubated with 1.0 mM NEFA (Ad-SIRT3 + NEFA). Expressions of key genes in VLDL synthesis and the VLDL contents in cell culture supernatants were measured. SIRT3 overexpression significantly increased the mRNA abundance of microsomal triglyceride transfer protein (MTP), apolipoprotein B100 (ApoB100) and ApoE (p < 0.01), and raised VLDL contents in the supernatants (p < 0.01). However, SIRT3 silencing displayed a reverse effect in comparison to SIRT3 overexpression. Compared with NEFA treatment alone, the Ad-SIRT3 + NEFA significantly upregulated the mRNA abundance of MTP, ApoB100 and ApoE (p < 0.01), and increased VLDL contents in the supernatants (p < 0.01). Our data demonstrated that SIRT3 restored the synthesis and assembly of VLDL in cow hepatocytes challenged with NEFA, providing an in vitro basis for further investigations testing its feasibility against hepatic TAG accumulation in dairy cows during the perinatal period.

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