7-Ketocholesterol is a lipid of Sterol Lipids (ST) class. 7-ketocholesterol is associated with abnormalities such as Atherosclerosis, Age related macular degeneration, Drusen, Cardiovascular Diseases and Hypercholesterolemia. The involved functions are known as mRNA Expression, Choroidal Neovascularization, Biochemical Pathway, Inflammation and Regulation. 7-ketocholesterol often locates in Basal lamina of choroid, Mitochondria, Epithelium, Frozen Sections and Membrane. The associated genes with 7-Ketocholesterol are ABCA1 gene, SLC33A1 gene, GAPDH gene, P4HTM gene and TSPO gene. The related lipids are Ketocholesterols, cholesterol oxide, Sterols, oxidized lipid and 7-ketocholesterol. The related experimental models are Knock-out and Mouse Model.
To understand associated biological information of 7-Ketocholesterol, we collected biological information of abnormalities, associated pathways, cellular/molecular locations, biological functions, related genes/proteins, lipids and common seen animal/experimental models with organized paragraphs from literatures.
7-Ketocholesterol is suspected in Atherosclerosis, Keratoconjunctivitis Sicca, endothelial dysfunction, Senile Plaques, Hypercholesterolemia, Hypercholesterolemia, Familial and other diseases in descending order of the highest number of associated sentences.
| Disease | Cross reference | Weighted score | Related literature |
|---|
We collected disease MeSH terms mapped to the references associated with 7-Ketocholesterol
| MeSH term | MeSH ID | Detail |
|---|---|---|
| Diabetic Retinopathy | D003930 | 39 associated lipids |
| Arteriosclerosis | D001161 | 86 associated lipids |
| Multiple Sclerosis | D009103 | 13 associated lipids |
| Niemann-Pick Diseases | D009542 | 25 associated lipids |
| Carotid Stenosis | D016893 | 15 associated lipids |
| Atherosclerosis | D050197 | 85 associated lipids |
There are no associated biomedical information in the current reference collection.
Associated locations are in red color. Not associated locations are in black.
| Location | Cross reference | Weighted score | Related literatures |
|---|
| Function | Cross reference | Weighted score | Related literatures |
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| Lipid concept | Cross reference | Weighted score | Related literatures |
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| Gene | Cross reference | Weighted score | Related literatures |
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Knock-out are used in the study 'Isolation of macrophage-like cell mutants resistant to the cytotoxic effect of oxidized low density lipoprotein.' (Hakamata H et al., 1998) and Knock-out are used in the study 'Differential effects of PARP inhibition on vascular cell survival and ACAT-1 expression favouring atherosclerotic plaque stability.' (Hans CP et al., 2008).
Mouse Model are used in the study 'Activation of caspase-8 and caspase-12 pathways by 7-ketocholesterol in human retinal pigment epithelial cells.' (Luthra S et al., 2006).
| Model | Cross reference | Weighted score | Related literatures |
|---|
| Authors | Title | Published | Journal | PubMed Link |
|---|---|---|---|---|
| Staprans I et al. | Ezetimibe inhibits the incorporation of dietary oxidized cholesterol into lipoproteins. | 2006 | J. Lipid Res. | pmid:16894239 |
| Vine DF et al. | Dietary oxysterols are incorporated in plasma triglyceride-rich lipoproteins, increase their susceptibility to oxidation and increase aortic cholesterol concentration of rabbits. | 1998 | J. Lipid Res. | pmid:9788246 |
| Norlin M et al. | 24-hydroxycholesterol is a substrate for hepatic cholesterol 7alpha-hydroxylase (CYP7A). | 2000 | J. Lipid Res. | pmid:11013305 |
| Hakamata H et al. | Isolation of macrophage-like cell mutants resistant to the cytotoxic effect of oxidized low density lipoprotein. | 1998 | J. Lipid Res. | pmid:9548582 |
| Gelissen IC et al. | Oxysterol efflux from macrophage foam cells: the essential role of acceptor phospholipid. | 1999 | J. Lipid Res. | pmid:10484610 |
| Brown AJ et al. | Cholesterol and oxysterol metabolism and subcellular distribution in macrophage foam cells. Accumulation of oxidized esters in lysosomes. | 2000 | J. Lipid Res. | pmid:10681406 |
| Hynynen R et al. | OSBP-related protein 2 is a sterol receptor on lipid droplets that regulates the metabolism of neutral lipids. | 2009 | J. Lipid Res. | pmid:19224871 |
| Axelson M et al. | Structural specificity in the suppression of HMG-CoA reductase in human fibroblasts by intermediates in bile acid biosynthesis. | 1995 | J. Lipid Res. | pmid:7751816 |
| Heo GY et al. | Conversion of 7-ketocholesterol to oxysterol metabolites by recombinant CYP27A1 and retinal pigment epithelial cells. | 2011 | J. Lipid Res. | pmid:21411718 |
| Akiba S et al. | Oxidized LDL activates phospholipase A2 to supply fatty acids required for cholesterol esterification. | 2003 | J. Lipid Res. | pmid:12777475 |
| Jiang X et al. | A sensitive and specific LC-MS/MS method for rapid diagnosis of Niemann-Pick C1 disease from human plasma. | 2011 | J. Lipid Res. | pmid:21518695 |
| Shentu TP et al. | The role of oxysterols in control of endothelial stiffness. | 2012 | J. Lipid Res. | pmid:22496390 |
| Boenzi S et al. | Evaluation of plasma cholestane-3β,5α,6β-triol and 7-ketocholesterol in inherited disorders related to cholesterol metabolism. | 2016 | J. Lipid Res. | pmid:26733147 |
| Pajares S et al. | Cholestane-3β,5α,6β-triol: high levels in Niemann-Pick type C, cerebrotendinous xanthomatosis, and lysosomal acid lipase deficiency. | 2015 | J. Lipid Res. | pmid:26239048 |
| Davis S et al. | α-Tocopherols modify the membrane dipole potential leading to modulation of ligand binding by P-glycoprotein. | 2015 | J. Lipid Res. | pmid:26026069 |
| Leoni V et al. | Levels of 7-oxocholesterol in cerebrospinal fluid are more than one thousand times lower than reported in multiple sclerosis. | 2005 | J. Lipid Res. | pmid:15576852 |
| Xu L et al. | Novel oxysterols observed in tissues and fluids of AY9944-treated rats: a model for Smith-Lemli-Opitz syndrome. | 2011 | J. Lipid Res. | pmid:21817059 |
| Lyons MA et al. | Rapid hepatic metabolism of 7-ketocholesterol in vivo: implications for dietary oxysterols. | 1999 | J. Lipid Res. | pmid:10508204 |
| Wnętrzak A et al. | Oxysterols Versus Cholesterol in Model Neuronal Membrane. I. The Case of 7-Ketocholesterol. The Langmuir Monolayer Study. | 2017 | J. Membr. Biol. | pmid:28861595 |
| Rho MC et al. | 7-Ketocholesterol predisposes human aorta smooth muscle cells to Fas-mediated death. | 2005 | J. Mol. Cell. Cardiol. | pmid:16198370 |
| Loke SY et al. | Comprehensive gene expression analyses of the rat prefrontal cortex after oxysterol treatment. | 2013 | J. Neurochem. | pmid:23294445 |
| He X et al. | Lovastatin modulates increased cholesterol and oxysterol levels and has a neuroprotective effect on rat hippocampal neurons after kainate injury. | 2006 | J. Neuropathol. Exp. Neurol. | pmid:16825952 |
| Moinard C et al. | Citrulline Supplementation Induces Changes in Body Composition and Limits Age-Related Metabolic Changes in Healthy Male Rats. | 2015 | J. Nutr. | pmid:26019250 |
| Vejux A et al. | Phospholipidosis and down-regulation of the PI3-K/PDK-1/Akt signalling pathway are vitamin E inhibitable events associated with 7-ketocholesterol-induced apoptosis. | 2009 | J. Nutr. Biochem. | pmid:18495460 |
| Palozza P et al. | Lycopene prevention of oxysterol-induced proinflammatory cytokine cascade in human macrophages: inhibition of NF-κB nuclear binding and increase in PPARγ expression. | 2011 | J. Nutr. Biochem. | pmid:20573495 |
| Palozza P et al. | Lycopene prevents 7-ketocholesterol-induced oxidative stress, cell cycle arrest and apoptosis in human macrophages. | 2010 | J. Nutr. Biochem. | pmid:19157829 |
| Lizard G et al. | Induction of similar features of apoptosis in human and bovine vascular endothelial cells treated by 7-ketocholesterol. | 1997 | J. Pathol. | pmid:9422990 |
| Suzuki K et al. | Oxidized low-density lipoprotein increases interleukin-8 production in human gingival epithelial cell line Ca9-22. | 2010 | J. Periodont. Res. | pmid:20412422 |
| Smith LL et al. | Sterol metabolism--XLVII. Oxidized cholesterol esters in human tissues. | 1981 | J. Steroid Biochem. | pmid:7300357 |
| Leoni V et al. | Mitochondrial dysfunctions in 7-ketocholesterol-treated 158N oligodendrocytes without or with α-tocopherol: Impacts on the cellular profil of tricarboxylic cycle-associated organic acids, long chain saturated and unsaturated fatty acids, oxysterols, cholesterol and cholesterol precursors. | 2017 | J. Steroid Biochem. Mol. Biol. | pmid:27020660 |
| Zarrouk A et al. | Attenuation of 7-ketocholesterol-induced overproduction of reactive oxygen species, apoptosis, and autophagy by dimethyl fumarate on 158N murine oligodendrocytes. | 2017 | J. Steroid Biochem. Mol. Biol. | pmid:26921765 |
| Gregorio-King CC et al. | Mechanisms of resistance to the cytotoxic effects of oxysterols in human leukemic cells. | 2004 | J. Steroid Biochem. Mol. Biol. | pmid:15120425 |
| Silva SF et al. | Oxysterols in adipose tissue-derived mesenchymal stem cell proliferation and death. | 2017 | J. Steroid Biochem. Mol. Biol. | pmid:27133385 |
| Odermatt A and Klusonova P | 11β-Hydroxysteroid dehydrogenase 1: Regeneration of active glucocorticoids is only part of the story. | 2015 | J. Steroid Biochem. Mol. Biol. | pmid:25151952 |
| Nury T et al. | 7-Ketocholesterol is increased in the plasma of X-ALD patients and induces peroxisomal modifications in microglial cells: Potential roles of 7-ketocholesterol in the pathophysiology of X-ALD. | 2017 | J. Steroid Biochem. Mol. Biol. | pmid:27041118 |
| Zong Y et al. | Toxicity of 7-ketocholesterol on lethality, growth, reproduction, and germline apoptosis in the nematode Caenorhabditis elegans. | 2014 | J. Toxicol. Environ. Health Part A | pmid:24786678 |
| Sung SC et al. | 7-Ketocholesterol upregulates interleukin-6 via mechanisms that are distinct from those of tumor necrosis factor-alpha, in vascular smooth muscle cells. | 2009 | J. Vasc. Res. | pmid:18515973 |
| Scopesi F et al. | Cholesterol oxidation in intravenous lipid emulsions: safety of preparations before and after experimental hyperoxia. | 2004 Sep-Oct | JPEN J Parenter Enteral Nutr | pmid:15449575 |
| Nakagawa K et al. | Protective effect of daidzein against acute ethanol-induced lipid peroxidation in rat jejunum. | 2006 | Kobe J Med Sci | pmid:17006054 |
| Telesford DM et al. | Reduced Condensing and Ordering Effects by 7-Ketocholesterol and 5β,6β-Epoxycholesterol on DPPC Monolayers. | 2015 | Langmuir | pmid:26322794 |
| Adachi J et al. | 7-hydroperoxycholesterol and oxysterols as indices of oxidative stress: chronic ethanol feeding and rat skeletal muscle. | 2003 | Leg Med (Tokyo) | pmid:12935564 |
| Sharma A et al. | Amelioration of lead-induced hepatotoxicity by Allium sativum extracts in Swiss albino mice. | 2010 | Libyan J Med | pmid:21483544 |
| Yoda T et al. | Thermo-induced vesicular dynamics of membranes containing cholesterol derivatives. | 2012 | Lipids | pmid:22752691 |
| Parish EJ et al. | A facile synthesis and carbon-13 nuclear magnetic resonance spectral properties of 7-ketocholesteryl benzoate. | 1987 | Lipids | pmid:3431349 |
| Lyons MA and Brown AJ | Metabolism of an oxysterol, 7-ketocholesterol, by sterol 27-hydroxylase in HepG2 cells. | 2001 | Lipids | pmid:11521968 |
| Krut LH et al. | Microscale preparation of natural and labeled oxysterols. | 1996 | Lipids | pmid:8727646 |
| Saldanha T and Bragagnolo N | Cholesterol oxidation is increased and PUFA decreased by frozen storage and grilling of Atlantic hake fillets (Merluccius hubbsi). | 2007 | Lipids | pmid:17492472 |
| Rutherford LD and Gieseg SP | 7-ketocholesterol is not cytotoxic to U937 cells when incorporated into acetylated low density lipoprotein. | 2012 | Lipids | pmid:22124807 |
| Iborra RT et al. | Advanced glycation in macrophages induces intracellular accumulation of 7-ketocholesterol and total sterols by decreasing the expression of ABCA-1 and ABCG-1. | 2011 | Lipids Health Dis | pmid:21957962 |
| Jusakul A et al. | Mechanisms of oxysterol-induced carcinogenesis. | 2011 | Lipids Health Dis | pmid:21388551 |