Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Regulation of Apolipoprotein A-I Gene Expression in Human Macrophages by Oxidized Low-Density Lipoprotein. / Nekrasova, Ekaterina V.; Larionova, Ekaterina E.; Danko, Katerina; Kuzmina, Darya O.; Shavva, Vladimir S.; Kudriavtsev, Igor V.; Orlov, Sergey V.
в: Biochemistry (Moscow), Том 86, № 10, 10.2021, стр. 1201-1213.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Regulation of Apolipoprotein A-I Gene Expression in Human Macrophages by Oxidized Low-Density Lipoprotein
AU - Nekrasova, Ekaterina V.
AU - Larionova, Ekaterina E.
AU - Danko, Katerina
AU - Kuzmina, Darya O.
AU - Shavva, Vladimir S.
AU - Kudriavtsev, Igor V.
AU - Orlov, Sergey V.
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd.
PY - 2021/10
Y1 - 2021/10
N2 - Abstract: Apolipoprotein A-I (ApoA-I) is a key component of reverse cholesterol transport in humans. In the previous studies, we demonstrated expression of the apoA-I gene in human monocytes and macrophages; however, little is known on the regulation of the apoA-I expression in macrophages during the uptake of modified low-density lipoprotein (LDL), which is one of the key processes in the early stages of atherogenesis leading to formation of foam cells. Here, we demonstrate a complex nature of the apoA-I regulation in human macrophages during the uptake of oxidized LDL (oxLDL). Incubation of macrophages with oxLDL induced expression of the apoA-I gene within the first 24 hours, but suppressed it after 48 h. Both effects depended on the interaction of oxLDL with the TLR4 receptor, rather than on the oxLDL uptake by the macrophages. The oxLDL-mediated downregulation of the apoA-I gene depended on the ERK1/2 and JNK cascades, as well as on the NF-κB cascade.
AB - Abstract: Apolipoprotein A-I (ApoA-I) is a key component of reverse cholesterol transport in humans. In the previous studies, we demonstrated expression of the apoA-I gene in human monocytes and macrophages; however, little is known on the regulation of the apoA-I expression in macrophages during the uptake of modified low-density lipoprotein (LDL), which is one of the key processes in the early stages of atherogenesis leading to formation of foam cells. Here, we demonstrate a complex nature of the apoA-I regulation in human macrophages during the uptake of oxidized LDL (oxLDL). Incubation of macrophages with oxLDL induced expression of the apoA-I gene within the first 24 hours, but suppressed it after 48 h. Both effects depended on the interaction of oxLDL with the TLR4 receptor, rather than on the oxLDL uptake by the macrophages. The oxLDL-mediated downregulation of the apoA-I gene depended on the ERK1/2 and JNK cascades, as well as on the NF-κB cascade.
KW - apoA-I gene
KW - atherosclerosis
KW - foam cells
KW - gene expression regulation
KW - macrophages
KW - oxLDL
KW - THP-1 cells
KW - TLR4
UR - http://www.scopus.com/inward/record.url?scp=85115076410&partnerID=8YFLogxK
U2 - 10.1134/S0006297921100047
DO - 10.1134/S0006297921100047
M3 - Article
AN - SCOPUS:85115076410
VL - 86
SP - 1201
EP - 1213
JO - Biochemistry (Moscow)
JF - Biochemistry (Moscow)
SN - 0006-2979
IS - 10
ER -
ID: 91160221