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Shinji Kamisuki et al.
Journal of medicinal chemistry, 54(13), 4923-4927 (2011-05-13)
Fatostatin, a recently discovered small molecule that inhibits activation of sterol regulatory element-binding protein (SREBP), blocks biosynthesis and accumulation of fat in obese mice. We synthesized and evaluated a series of fatostatin derivatives. Our structure-activity relationships led to the identification
Hanne Roberg-Larsen et al.
The Journal of steroid biochemistry and molecular biology, 169, 22-28 (2016-02-16)
Exosomes from cancer cells are rich sources of biomarkers and may contain elevated levels of lipids of diagnostic value. 27-Hydroxycholesterol (27-OHC) is associated with proliferation and metastasis in estrogen receptor positive (ER+) breast cancer. In this study, we investigated the
Takashi Sugiyama et al.
iScience, 24(7), 102758-102758 (2021-08-07)
Derlin family members (Derlins) are primarily known as components of the endoplasmic reticulum-associated degradation pathway that eliminates misfolded proteins. Here we report a function of Derlins in the brain development. Deletion of Derlin-1 or Derlin-2 in the central nervous system
J Zhang et al.
Arzneimittel-Forschung, 62(6), 301-306 (2012-05-18)
Triptolide(CAS 38748-32-2), a major active component of Tripterygium wilfordii Hook F (TWHF), is known to have multiple pharmacological activities. However, studies have also shown that triptolide is highly disrupt to the reproductive system by disrupting normal steroid hormone signaling. In
Anita Wnętrzak et al.
The journal of physical chemistry. B, 124(6), 1104-1114 (2020-01-24)
In this study, 25-hydroxycholesterol (25-OH), a biamphiphilic compound with a wide range of biological activities, has been investigated at the air/water interface. We were interested in how two hydroxyl groups attached at distal positions of the 25-OH molecule (namely, at
Giselda Macena Lira et al.
Food research international (Ottawa, Ont.), 101, 198-202 (2017-09-25)
The influence of cooking on the nutritional value of king mackerel when cooked in coconut milk or pan fried in coconut oil was verified from the alterations in the fatty acid content; formation of cholesterol oxides and the nutritional quality
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
Hiroshi Takahashi et al.
Chemistry and physics of lipids, 227, 104872-104872 (2020-01-14)
The effects of 7β-hydroxycholesterol (7βOH) and 25-hydroxycholesterol (25OH) on the phase behavior and the structural properties of the multilamellar vesicles of dipalmitoylphosphatidylcholine (DPPC) bilayers were investigated with comparing to the effects of cholesterol (Chol). Differential scanning calorimetry (DSC) measurements showed
Marina Parra-Robert et al.
Biomolecules, 9(9) (2019-09-01)
Nonalcoholic fatty liver disease (NAFLD) is characterized by hepatic accumulation of lipids. Antisteatotic effects of cerium oxide nanoparticles (CeO2NPs) have recently been shown in animal models of liver disease. However, it is unclear whether the activity of CeO2NPs is related
Katrine Bjune et al.
Atherosclerosis, 276, 28-38 (2018-07-20)
Induction of low-density lipoprotein receptor (LDLR) plays a significant role in reduction of plasma LDL-cholesterol (LDL-C) levels. Therefore, strategies that enhance the protein level of LDLR provide an attractive therapeutic target for the treatment of hypercholesterolemia. With this aim in
Fernanda S Ferreira et al.
Journal of food science, 82(12), 2823-2831 (2017-11-11)
The high temperatures used to fry fish may induce thermo-oxidation of cholesterol, forming cholesterol oxidation products (COPs). COPs have been associated to coronary heart diseases, atherosclerosis, and other chronic diseases. Air fryers are an alternative thermal process technology to fry
Gera Goverse et al.
Journal of immunology (Baltimore, Md. : 1950), 198(5), 2172-2181 (2017-01-20)
The gastrointestinal tract is continuously exposed to many environmental factors that influence intestinal epithelial cells and the underlying mucosal immune system. In this article, we demonstrate that dietary fiber and short chain fatty acids (SCFAs) induced the expression of the
Jian Xiao et al.
Protein & cell, 12(4), 279-296 (2020-07-16)
Sterol-regulatory element binding proteins (SREBPs) are the key transcriptional regulators of lipid metabolism. The activation of SREBP requires translocation of the SREBP precursor from the endoplasmic reticulum to the Golgi, where it is sequentially cleaved by site-1 protease (S1P) and
Li Chen et al.
Biochemical and biophysical research communications, 484(4), 857-863 (2017-02-09)
25-hydroxycholesterol (25-HC) is enzymatically produced by cholesterol 25-hydorxylase in various organs and is involved in many processes, including lipid metabolism, inflammation and the immune response. However, the role of 25-HC in the migration and invasion of lung adenocarcinoma (ADC) cells
Annukka M Kivelä et al.
Atherosclerosis, 225(2), 335-340 (2012-10-30)
Endothelial lipase (EL) regulates HDL cholesterol levels and in inflammatory states, like atherosclerosis, EL expression is increased contributing to low HDL cholesterol. The regulation of EL expression is poorly understood and has mainly been attributed to inflammatory stimuli. As sterol
Tian Du et al.
Breast cancer research : BCR, 20(1), 106-106 (2018-09-06)
Invasive lobular breast carcinoma (ILC) is a histological subtype of breast cancer that is characterized by loss of E-cadherin and high expression of estrogen receptor alpha (ERα). In many cases, ILC is effectively treated with adjuvant aromatase inhibitors (AIs); however
Yongjun Yu et al.
PLoS pathogens, 9(4), e1003266-e1003266 (2013-04-18)
PKR-like endoplasmic reticulum (ER) kinase (PERK) is an ER-associated stress sensor protein which phosphorylates eukaryotic initiation factor 2α (eIF2α) to induce translation attenuation in response to ER stress. PERK is also a regulator of lipogenesis during adipocyte differentiation through activation
Hang Fu et al.
Atherosclerosis, 237(2), 443-452 (2014-12-03)
Inflammation is essential for atherogenesis. Cholesterol, a cardiovascular risk factor, may activate inflammation in the vessel wall during this process. Cytokine-mediated interactions of human monocytes with vascular smooth muscle cells (SMCs) may perpetuate this process. We investigated the capacity of
Grace Ampem et al.
Cell and tissue research, 378(1), 81-96 (2019-04-24)
Self-renewal of macrophages is important for the healthy development and replenishment of tissue-resident macrophage pools. How this mechanism is controlled by endocrine signals is still largely unexplored. Here, we show that the endocrine disruptor bisphenol A (BPA) increases macrophage self-renewal.
Wenbin Zhong et al.
Experimental cell research, 322(2), 227-235 (2014-01-16)
We earlier identified OSBP-related protein 8 (ORP8) as an endoplasmic reticulum/nuclear envelope oxysterol-binding protein implicated in cellular lipid homeostasis, migration, and organization of the microtubule cytoskeleton. Here, a yeast two-hybrid screen identified Homo sapiens sperm associated antigen 5 (SPAG5)/Astrin as
Anna Simon
The New England journal of medicine, 371(20), 1933-1935 (2014-11-13)
A study in mice implicates a cholesterol derivative in damping down the inflammatory response mediated by interleukin-1β and explaining, at least in part, the immunosuppressive effect of type I interferon, which is used in the treatment of multiple sclerosis.
Daniel L Villeneuve et al.
Environmental toxicology and chemistry, 36(1), 231-242 (2016-06-18)
Triclocarban (TCC) is an antimicrobial agent routinely detected in surface waters that has been hypothesized to interact with the vertebrate endocrine system. The present study examined the effects of TCC alone and in combination with the model endocrine disruptor 17β-trenbolone
Khanichi N Charles et al.
Frontiers in cell and developmental biology, 8, 560266-560266 (2020-11-27)
Cholesterol biosynthesis is a multi-step process involving several subcellular compartments, including peroxisomes. Cells adjust their sterol content by both transcriptional and post-transcriptional feedback regulation, for which sterol regulatory element-binding proteins (SREBPs) are essential; such homeostasis is dysregulated in peroxisome-deficient Pex2
Monica de Gaetano et al.
Journal of inflammation (London, England), 12, 15-15 (2015-02-28)
Atherosclerosis, the underlying cause of heart attack and strokes, is a progresive dyslipidemic and inflammatory disease where monocyte-derived macrophage cells play a pivotal role. Although most of the mechanisms that contribute to the progression of atherosclerosis have been identified, there
Gregory Segala et al.
Nature communications, 8(1), 1903-1903 (2017-12-05)
Dendrogenin A (DDA) is a newly discovered cholesterol metabolite with tumor suppressor properties. Here, we explored its efficacy and mechanism of cell death in melanoma and acute myeloid leukemia (AML). We found that DDA induced lethal autophagy in vitro and
Anna M Kolodziejek et al.
Cell reports, 27(7), 2147-2156 (2019-05-16)
Intracellular Salmonella use a type III secretion system (TTSS) to translocate effector proteins across the phagosome membrane and thus promote vacuole membrane tubulation, resulting in intracellular survival. This work demonstrates that the effector SseJ binds the eukaryotic lipid transporter oxysterol
Eva Bernhart et al.
Biochemical pharmacology, 96(2), 119-130 (2015-05-24)
Glioblastoma is the most common malignant brain tumor, which, despite combined radio- and chemotherapy, recurs and is invariably fatal for affected patients. Members of the sphingolipid (SL) family are potent effectors of glioma cell proliferation. In particular sphingosine-1-phosphate (S1P) and
Su-Yang Liu et al.
Immunity, 38(1), 92-105 (2013-01-01)
Interferons (IFN) are essential antiviral cytokines that establish the cellular antiviral state through upregulation of hundreds of interferon-stimulated genes (ISGs), most of which have uncharacterized functions and mechanisms. We identified cholesterol-25-hydroxylase (CH25H) as a broadly antiviral ISG. CH25H converts cholesterol
David R Bauman et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(39), 16764-16769 (2009-10-07)
25-Hydroxycholesterol is produced in mammalian tissues. The function of this oxysterol is unknown. Here we describe a central role for 25-hydroxycholesterol in regulating the immune system. In initial experiments, we found that stimulation of macrophage Toll-like receptors (TLR) induced expression
Marc M Schumacher et al.
eLife, 4 (2015-03-06)
Schnyder corneal dystrophy (SCD) is an autosomal dominant disorder in humans characterized by abnormal accumulation of cholesterol in the cornea. SCD-associated mutations have been identified in the gene encoding UBIAD1, a prenyltransferase that synthesizes vitamin K2. Here, we show that
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