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Chanhee Jo et al.
Experimental & molecular medicine, 52(12), 2005-2019 (2020-12-15)
Acetylation is the most studied histone acyl modification and has been recognized as a fundamental player in metabolic gene regulation, whereas other short-chain acyl modifications have only been recently identified, and little is known about their dynamics or molecular functions...
Paramita Chakraborty et al.
Cell reports, 28(7), 1879-1893 (2019-08-15)
Sphingosine 1-phosphate (S1P), a bioactive lysophospholipid generated by sphingosine kinase 1 (SphK1), regulates lymphocyte egress into circulation via S1P receptor 1 (S1PR1) signaling, and it controls the differentiation of regulatory T cells (Tregs) and T helper-17 cells. However, the mechanisms by...
Akiyo Yokomizo et al.
Micromachines, 10(6) (2019-05-31)
In this paper, we propose an anchoring device with pillars to immobilize an adipocyte microfiber that has a fiber-shaped adipocyte tissue covered by an alginate gel shell. Because the device enabled the immobilization of the microfiber in a culture dish...
David M Favara et al.
Metabolites, 9(12) (2019-11-30)
Adhesion G Protein-Coupled Receptor L4 (ADGRL4/ELTD1) is an endothelial cell adhesion G protein-coupled receptor (aGPCR) which regulates physiological and tumour angiogenesis, providing an attractive target for anti-cancer therapeutics. To date, ADGRL4/ELTD1's full role and mechanism of function within endothelial biology...
Maddalena Parafati et al.
International journal of molecular sciences, 21(24) (2020-12-19)
Non-alcoholic fatty liver disease (NAFLD) has a large impact on global health. At the onset of disease, NAFLD is characterized by hepatic steatosis defined by the accumulation of triglycerides stored as lipid droplets. Developing therapeutics against NAFLD and progression to...
Crystal S Conn et al.
Nature metabolism, 3(2), 244-257 (2021-02-24)
Obesity is a global epidemic leading to increased mortality and susceptibility to comorbidities, with few viable therapeutic interventions. A hallmark of disease progression is the ectopic deposition of lipids in the form of lipid droplets in vital organs such as...
Timothy E Thayer et al.
Scientific reports, 10(1), 9831-9831 (2020-06-21)
Non-alcoholic fatty liver disease (NAFLD) affects over 30% of adults in the United States. Bone morphogenetic protein (BMP) signaling is known to contribute to hepatic fibrosis, but the role of BMP signaling in the development of NAFLD is unclear. In...
Ayon Ibrahim et al.
Cell metabolism, 32(2), 309-319 (2020-06-11)
Most organs use fatty acids (FAs) as a key nutrient, but little is known of how blood-borne FAs traverse the endothelium to reach underlying tissues. We conducted a small-molecule screen and identified niclosamide as a suppressor of endothelial FA uptake...
Young Mi Song et al.
Autophagy, 11(1), 46-59 (2014-12-09)
Metformin activates both PRKA and SIRT1. Furthermore, autophagy is induced by either the PRKA-MTOR-ULK1 or SIRT1-FOXO signaling pathways. We aimed to elucidate the mechanism by which metformin alleviates hepatosteatosis by examining the molecular interplay between SIRT1, PRKA, and autophagy. ob/ob...
Simon G Pfisterer et al.
Journal of lipid research, 55(7), 1267-1278 (2014-04-30)
Autophagy is a lysosomal bulk degradation pathway for cytoplasmic cargo, such as long-lived proteins, lipids, and organelles. Induced upon nutrient starvation, autophagic degradation is accomplished by the concerted actions of autophagy-related (ATG) proteins. Here we demonstrate that two ATGs, human...
Yinfang Wang et al.
Journal of experimental & clinical cancer research : CR, 38(1), 147-147 (2019-04-07)
Ionizing radiation (IR) therapy is the standard first-line treatment for newly diagnosed patients with glioblastoma (GBM), the most common and malignant primary brain tumor. However, the effects of IR are limited due to the aberrant radioresistance of GBM. Transcriptome analysis...
Sarah Guttmann et al.
PloS one, 15(3), e0230025-e0230025 (2020-03-11)
Intestinal cells control delivery of lipids to the body by adsorption, storage and secretion. Copper (Cu) is an important trace element and has been shown to modulate lipid metabolism. Mutation of the liver Cu exporter ATP7B is the cause of...
Maria S Ioannou et al.
Cell, 177(6), 1522-1535 (2019-05-28)
Metabolic coordination between neurons and astrocytes is critical for the health of the brain. However, neuron-astrocyte coupling of lipid metabolism, particularly in response to neural activity, remains largely uncharacterized. Here, we demonstrate that toxic fatty acids (FAs) produced in hyperactive...
Robert J van Eijkeren et al.
Frontiers in endocrinology, 11, 479-479 (2020-08-28)
The complex direct and indirect interplay between adipocytes and various adipose tissue (AT)-resident immune cells plays an important role in maintaining local and whole-body insulin sensitivity. Adipocytes can directly interact with and activate AT-resident invariant natural killer T (iNKT) cells...
Wondwossen M Yeshaw et al.
eLife, 8 (2019-02-12)
The VPS13A gene is associated with the neurodegenerative disorder Chorea Acanthocytosis. It is unknown what the consequences are of impaired function of VPS13A at the subcellular level. We demonstrate that VPS13A is a peripheral membrane protein, associated with mitochondria, the...
Lei Sun et al.
EBioMedicine, 33, 157-168 (2018-07-01)
Histone deacetylases (HDACs) are enzymes that regulate protein functions by catalyzing the removal of acetyl and acyl groups from lysine residues. They play pivotal roles in governing cell behaviors and are indispensable in numerous biological processes. HDAC11, the last identified...
Ananya Nandy et al.
Infection and immunity, 86(6) (2018-04-11)
Mycobacterium tuberculosis, a successful human pathogen, utilizes multiple carbon sources from the host but adapts to a fatty-acid-rich environment in vivo We sought to delineate the physiologic response of M. tuberculosis to a lipid-rich environment by using differentiated adipocytes as...
Gina Lee et al.
Cell, 171(7), 1545-1558 (2017-11-21)
mTORC1 is a signal integrator and master regulator of cellular anabolic processes linked to cell growth and survival. Here, we demonstrate that mTORC1 promotes lipid biogenesis via SRPK2, a key regulator of RNA-binding SR proteins. mTORC1-activated S6K1 phosphorylates SRPK2 at...
Da-Hye Lee et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 125, 109950-109950 (2020-02-15)
Nonalcoholic fatty liver disease (NAFLD) is a common risk factor for metabolic syndrome that increases the risk of future cardiovascular disease, stroke, and diabetes. Recently, autophagy has been proposed as a means to prevent NAFLD. We investigated whether substances with...
Saifudeen Ismael et al.
Molecular and cellular biochemistry, 476(1), 483-491 (2020-10-02)
Metabolic shift is an important contributory factor for progression of hypertension-induced left ventricular hypertrophy into cardiac failure. Under hypertrophic conditions, heart switches its substrate preference from fatty acid to glucose. Prolonged dependence on glucose for energy production has adverse cardiovascular...
Ignacio Guerrero-Ros et al.
Autophagy, 16(2), 223-238 (2019-04-16)
Obesity is associated with changes in the immune system that significantly hinder its ability to mount efficient immune responses. Previous studies have reported a dysregulation of immune responses caused by lipid challenge; however, the mechanisms underlying that dysregulation are still...
Barbara Roman et al.
Journal of molecular and cellular cardiology, 144, 87-96 (2020-05-23)
In cardiomyocytes, there is microRNA (miR) in the mitochondria that originates from the nuclear genome and matures in the cytoplasm before translocating into the mitochondria. Overexpression of one such miR, miR-181c, can lead to heart failure by stimulating reactive oxygen...