27-Hydroxycholesterol induces macrophage gene expression via LXR-dependent and -independent mechanisms
27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a pote...
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Published in | The Korean journal of physiology & pharmacology Vol. 25; no. 2; pp. 111 - 118 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Korea (South)
The Korean Physiological Society and The Korean Society of Pharmacology
01.03.2021
대한약리학회 |
Subjects | |
Online Access | Get full text |
ISSN | 1226-4512 2093-3827 |
DOI | 10.4196/kjpp.2021.25.2.111 |
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Abstract | 27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterolinduced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms. |
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AbstractList | 27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterol-induced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms. 27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterolinduced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms.27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterolinduced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms. 27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterolinduced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms KCI Citation Count: 0 27-Hydroxycholesterol (27OHChol) exhibits agonistic activity for liver X receptors (LXRs). To determine roles of the LXR agonistic activity in macrophage gene expression, we investigated the effects of LXR inhibition on the 27OHChol-induced genes. Treatment of human THP-1 cells with GSK 2033, a potent cell-active LXR antagonist, results in complete inhibition in the transcription of LXR target genes (such as LXRα and ABCA1) induced by 27OHChol or a synthetic LXR ligand TO 901317. Whereas expression of CCL2 and CCL4 remains unaffected by GSK 2033, TNF-α expression is further induced and 27OHChol-induced CCL3 and CXCL8 genes are suppressed at both the transcriptional and protein translation levels in the presence of GSK 2033. This LXR antagonist downregulates transcript levels and surface expression of CD163 and CD206 and suppresses the transcription of CD14, CD80, and CD86 genes without downregulating their surface levels. GSK 2033 alone had no effect on the basal expression levels of the aforementioned genes. Collectively, these results indicate that LXR inhibition leads to differential regulation of 27-hydroxycholesterolinduced genes in macrophages. We propose that 27OHChol induces gene expression and modulates macrophage functions via LXR-dependent and -independent mechanisms. |
Author | Kim, Koanhoi Kim, Bo-Young Cho, Hyok-rae Son, Yonghae Eo, Seong-Kug Lee, Dongjun |
AuthorAffiliation | 2 Department of Neurosurgery, Kosin University College of Medicine, Busan 49267, Korea 1 Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Korea 3 Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea 4 College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan 54596, Korea |
AuthorAffiliation_xml | – name: 3 Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea – name: 1 Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Korea – name: 2 Department of Neurosurgery, Kosin University College of Medicine, Busan 49267, Korea – name: 4 College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan 54596, Korea |
Author_xml | – sequence: 1 givenname: Bo-Young surname: Kim fullname: Kim, Bo-Young organization: Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Korea – sequence: 2 givenname: Yonghae surname: Son fullname: Son, Yonghae organization: Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Korea – sequence: 3 givenname: Hyok-rae surname: Cho fullname: Cho, Hyok-rae organization: Department of Neurosurgery, Kosin University College of Medicine, Busan 49267, Korea – sequence: 4 givenname: Dongjun surname: Lee fullname: Lee, Dongjun organization: Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea – sequence: 5 givenname: Seong-Kug surname: Eo fullname: Eo, Seong-Kug organization: College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan 54596, Korea – sequence: 6 givenname: Koanhoi surname: Kim fullname: Kim, Koanhoi organization: Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Korea |
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Cites_doi | 10.1016/0005-2760(94)00247-V 10.1016/j.taap.2013.12.007 10.4049/jimmunol.0801804 10.1074/jbc.M105805200 10.1016/j.chemphyslip.2011.06.006 10.1093/rheumatology/keq007 10.1172/JCI35288 10.3892/ijmm.2019.4135 10.1021/jm901797p 10.4049/jimmunol.0902399 10.1371/journal.pntd.0000886 10.1002/biof.1243 10.1016/j.bbrc.2013.11.052 10.1016/j.bbrc.2013.07.046 10.1016/S0021-9150(98)00196-8 10.1016/j.bbrc.2012.12.021 10.1152/physrev.2000.80.1.361 10.3892/mmr.2017.6491 10.1016/j.cell.2004.09.032 10.1210/me.2013-1051 10.4196/kjpp.2014.18.6.475 10.1046/j.1523-1747.2003.12033.x 10.1016/j.cell.2006.06.049 10.1016/j.bbadis.2014.12.003 10.1080/10715760100300571 10.1016/S0014-5793(02)03578-0 10.1194/jlr.M010686 10.1038/nm820 10.1101/gad.9.9.1033 |
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Keywords | 27-Hydroxycholesterol Liver X receptors Gene expression Macrophage |
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Title | 27-Hydroxycholesterol induces macrophage gene expression via LXR-dependent and -independent mechanisms |
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