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Showing 1-30 of 50 results for "H5884" within Papers
E T Kase et al.
Diabetologia, 50(10), 2171-2180 (2007-07-31)
Liver X receptors (LXRs) play important roles in lipid and carbohydrate metabolism. The purpose of the present study was to evaluate effects of the endogenous LXR agonist 22-R-hydroxycholesterol (22-R-HC) and its stereoisomer 22-S-hydroxycholesterol (22-S-HC), in comparison with the synthetic agonist
Xingzhe Ma et al.
The Journal of experimental medicine, 215(6), 1555-1569 (2018-05-11)
CD8+ T cells can be polarized into IL-9-secreting (Tc9) cells. We previously showed that adoptive therapy using tumor-specific Tc9 cells generated stronger antitumor responses in mouse melanoma than classical Tc1 cells. To understand why Tc9 cells exert stronger antitumor responses
Raffaella Mastrocola et al.
Neurobiology of disease, 44(1), 116-124 (2011-07-06)
β-Amyloid hyperproduction has been observed in response to alterations in neuronal intracellular cholesterol storage, efflux, and synthesis, induced in rats by a high-fat diet. It has been suggested that cholesterol homeostasis is altered in Alzheimer's disease resulting in higher β-
Natalia Mast et al.
The Journal of biological chemistry, 286(7), 5607-5613 (2010-12-17)
Mitochondrial cytochrome P450 11A1 (CYP11A1 or P450 11A1) is the only known enzyme that cleaves the side chain of cholesterol, yielding pregnenolone, the precursor of all steroid hormones. Pregnenolone is formed via three sequential monooxygenation reactions that involve the progressive
Milu T Cherian et al.
Molecular pharmacology, 87(5), 878-889 (2015-03-13)
Constitutive androstane receptor (CAR) and pregnane X receptor (PXR) are xenobiotic sensors that enhance the detoxification and elimination of xenobiotics and endobiotics by modulating the expression of genes encoding drug-metabolizing enzymes and transporters. Elevated levels of drug-metabolizing enzymes and efflux
Eili Tranheim Kase et al.
Lipids, 47(5), 483-493 (2012-03-20)
This study explores the pharmacokinetics of 22-S-hydroxycholesterol (22SHC) in vivo in rats. We also carried out a metabolic study to explore whether the beneficial effects observed of 22SHC on glucose and lipid metabolism in vitro could be seen in vivo
J C Escobar et al.
The Journal of clinical endocrinology and metabolism, 96(5), 1385-1392 (2011-02-11)
The human placenta is believed to have insignificant CYP17 expression, rendering it dependent on the maternal and fetal compartments for the necessary androgenic precursors to yield the high levels of estrogens seen in pregnancy. The aim of the study was
Stephanie Schaffer et al.
Biochemical pharmacology, 86(2), 279-285 (2013-05-15)
Two synthetic LXR agonists were recently reported to inhibit collagen-induced platelet aggregation and thrombus formation in mice. We therefore studied whether also natural LXR agonists inhibit human platelet activation and whether they can be fluorescence-labelled preserving their bioactivity for LXR-related
Marianne Demerjian et al.
Experimental dermatology, 18(7), 643-649 (2009-02-25)
While glucocorticoids (GC) exert beneficial effects (anti-inflammatory), they also have adverse effects on the epidermis including decreased epidermal differentiation, decreased keratinocyte proliferation, and decreased cutaneous permeability barrier homeostasis. Thus, the purpose of this study was to develop strategies to prevent
Ana C Valbuena-Diez et al.
Circulation, 126(22), 2612-2624 (2012-11-01)
Ischemia in the placenta is considered the base of the pathogenesis of preeclampsia, a pregnancy-specific syndrome in which soluble endoglin (sEng) is a prognostic marker and plays a pathogenic role. Here, we investigated the effects of hypoxia and the downstream
Laurent Lecanu et al.
Steroids, 77(3), 224-232 (2011-12-06)
Using 22R-hydroxycholesterol as a sub-structure to screen natural compound databases, we identified a naturally occurring steroid (sc-7) with a 16-acetoxy-22R-hydroxycholesterol moiety, in which the hydroxyl groups in positions 3 and 22 are esterified by an acetoxy group and in which
Masaru Nakayasu et al.
Plant physiology, 175(1), 120-133 (2017-07-30)
Steroidal glycoalkaloids (SGAs) are toxic specialized metabolites that are found in the Solanaceae. Potato (
Ali El Roz et al.
Anticancer research, 32(7), 3007-3013 (2012-07-04)
Liver X receptor (LXR) plays a key role in reverse cholesterol transport by inducing the expression of the ATP-binding cassette (ABC) transporters, implicated in cholesterol efflux. Recent data showed that LXR agonists inhibit the proliferation of multiple types of human
Cynthia Hong et al.
Journal of lipid research, 53(6), 1126-1133 (2012-03-29)
The liver X receptor (LXR) signaling pathway is an important modulator of atherosclerosis, but the relative importance of the two LXRs in atheroprotection is incompletely understood. We show here that LXRα, the dominant LXR isotype expressed in liver, plays a
Elaine M Quinet et al.
Journal of lipid research, 45(10), 1929-1942 (2004-08-05)
Liver X receptors (LXRs) play key roles in the regulation of cholesterol homeostasis by limiting cholesterol accumulation in macrophages within arterial wall lesion sites by a mechanism that includes the upregulation of ATP binding cassette transporters. These atheroprotective properties distinguish
Fulvio Morello et al.
Atherosclerosis, 207(1), 38-44 (2009-05-12)
Liver X receptors alpha and beta (LXRalpha, LXRbeta) are key regulators of cholesterol homeostasis. The effects of LXR ligands on endothelial cells are largely unknown. While oxysterol LXR agonists can increase the endothelial-leukocyte interaction, synthetic LXR agonists are anti-atherogenic and
K Hanley et al.
The Journal of investigative dermatology, 114(3), 545-553 (2000-02-26)
Ligands and activators of the nuclear hormone receptor superfamily are important in the regulation of epidermal development and differentiation. Previously, we showed that naturally occurring fatty acids, as well as synthetic ligands for the peroxisome proliferator-activated receptor, induce keratinocyte differentiation
Jasmin R Agarwal et al.
Molecular cancer therapeutics, 13(7), 1873-1881 (2014-05-09)
The Hedgehog (Hh) signaling pathway is aberrantly activated in a wide variety of human cancers, and recent clinical studies have demonstrated that pathway inhibitors are effective in advanced basal cell carcinoma (BCC). The majority of these agents have been designed
Bassam Haidar et al.
The Journal of biological chemistry, 279(11), 9963-9969 (2004-01-01)
It has been suggested that the signal transduction pathway initiated by apoA-I activates key proteins involved in cellular lipid efflux. We investigated apoA-I-mediated cAMP signaling in cultured human fibroblasts induced with (22R)-hydroxycholesterol and 9-cis-retinoic acid (stimulated cells). Treatment of stimulated
B A Laffitte et al.
Molecular and cellular biology, 21(22), 7558-7568 (2001-10-18)
Previous work has implicated the nuclear receptors liver X receptor alpha (LXR alpha) and LXR beta in the regulation of macrophage gene expression in response to oxidized lipids. Macrophage lipid loading leads to ligand activation of LXRs and to induction
Kenichi Matsushita et al.
The Journal of biological chemistry, 285(16), 11974-11982 (2010-02-02)
Renin is a key enzyme for cardiovascular and renal homeostasis and is produced by highly specialized endocrine cells in the kidney, known as juxtaglomerular (JG) cells. The nature and origin of these cells remain as mysteries. Previously, we have shown
Junko Matsuzaki et al.
Autoimmunity, 38(5), 369-375 (2005-10-18)
Immune balance controlled by Th1 and Th2 cells is critical for the protection of host from pathogenic invasion while its imbalance becomes the cause of various immune disorders including autoimmune diseases. Cytokines, such as IL-12 and IL-4, are critical factor
Robert Blassberg et al.
Human molecular genetics, 25(4), 693-705 (2015-12-20)
Smith-Lemli-Opitz syndrome (SLOS) is a common autosomal-recessive disorder that results from mutations in the gene encoding the cholesterol biosynthetic enzyme 7-dehydrocholesterol reductase (DHCR7). Impaired DHCR7 function is associated with a spectrum of congenital malformations, intellectual impairment, epileptiform activity and autism
Nina Pettersen Hessvik et al.
The Journal of steroid biochemistry and molecular biology, 128(3-5), 154-164 (2011-11-05)
The aim of this study was to explore the effects of 22(S)-hydroxycholesterol (22(S)-HC) on lipid and glucose metabolism in human-derived cells from metabolic active tissues. Docking of T0901317 and 22(S)-HC showed that both substances fitted into the ligand binding domain
Mercedes Mori Sequeiros García et al.
Chemico-biological interactions, 199(3), 185-191 (2012-09-04)
Cisplatin (Cs) is a chemotherapeutic agent able to generate reactive oxygen species (ROS) which are linked to several side effects of the drug. Even when it is known that Cs produces Leydig cell dysfunction, it is unknown whether this particular
Chih-Pin Chuu et al.
Anticancer research, 30(9), 3643-3648 (2010-10-15)
Previously, we and other groups reported that liver X receptor (LXR) agonists T0901317, 22(R)-hydroxycholesterol, and 24(S)-hydroxycholesterol suppressed the proliferation of prostate and breast cancer cells. In this study, we report that T0901317 and 22(R)-hydroxycholesterol treatment inhibited the proliferation of different
Eili Tranheim Kase et al.
Biochimica et biophysica acta, 1761(12), 1515-1522 (2006-10-24)
The nuclear liver X receptors (LXRalpha and beta) are regulators of lipid and cholesterol metabolism. Oxysterols are known LXR ligands, but the functional role of hydroxycholesterols is at present unknown. In human myotubes, chronic exposure to the LXR ligand T0901317
I L M H Aye et al.
Placenta, 32(2), 183-191 (2011-01-07)
Oxygenated cholesterol metabolites known as oxysterols display potent biological activities ranging from regulation of lipid homeostasis to cytotoxicity. Oxysterols have previously been shown to inhibit the invasion of first trimester trophoblasts, an effect which involves activation of the nuclear liver
Tatsuhiko Adachi et al.
Molecular pharmaceutics, 6(6), 1678-1688 (2009-07-11)
Human ATP-binding cassette (ABC) transporter ABCC2 (cMOAT/MRP2) plays a crucial role in the hepatobiliary transport of sulfate-, glucuronide-, and glutathione-conjugated metabolites as well as a variety of amphiphilic organic anions derived from hepatic metabolism. Molecular mechanisms underlying the induction of
Ikuya Sagimori et al.
Bioorganic & medicinal chemistry, 28(3), 115298-115298 (2020-01-07)
HMG-CoA reductase (HMGCR) is the rate-limiting enzyme in the cholesterol biosynthetic pathway, and is the target of cholesterol-lowering drugs, statins. Previous studies have demonstrated that the enzyme activity is regulated by sterol-induced degradation in addition to transcriptional regulation through sterol-regulatory-element-binding
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