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Showing 1 to 13 of 13 for “"NAMPT"”.
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Molecular Effects of the Nampt Inhibitor FK866 on Leukemia Cells
… process. Nicotinamide phosphoribosyltransferase (NAMPT) is the rate-limiting enzyme in NAD+ biosynthesis from nicotinamide in mammalian cells. A number of cancers present an increased expression of NAMPT, and high NAMPT levels have been shown to be essential to support cancer cell growth, survival …
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Dissecting NAMPT Signaling Pathways in Beige Adipocyte Development, Impairment and Maintenance
… enzyme nicotinamide phosphoribosyltransferase (NAMPT) regulates cellular stress responses and immune–metabolic crosstalk, yet its roles in thermogenic adipocyte development, maintenance, and failure remain incompletely defined. Here, I define context-specific functions of NAMPT across aging, …
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Nampt-Mediated Nad+ Homeostasis in Skeletal Muscle: Implications for Healthy Aging
… of nicotinamide phosphoribosyltransferase (Nampt), the rate-limiting enzyme in the mammalian NAD salvage biosynthetic pathway. Despite effectively increasing the muscle NAD pool, Nampt expression alone is not sufficient to stimulate mitochondrial function in young mice and provides no …
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NAD+ salvage by Nicotinamide phosphoribosyltransferase (Nampt) mediates lipogenesis, energy homeostasis, and survival in prostate cancer
… by Nicotinamide phosphoribosyltransferase (Nampt). In these studies, we focus on the role of Nampt in tumor biology. Specifically, we demonstrate that Nampt activity is required for <italic>de novo</italic> lipogenesis in multiple cancer cell lines. Inhibition of Nampt causes a reduction in …
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Mechanism of Action of Nicotinamide Phosphoribosyltransferase Mediated Signaling in Oxidative Stress
… (3). Nicotinamide phosphoribosyltransferase (Nampt) is an enzyme critical for cellular energy metabolism, and it also functions as a proinflammatory cytokine and growth factor with neuroprotective properties and in these contexts is referred to as Pre-B-Cell Colony Enhancing Factor (PBEF) and …
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The Pathophysiological Importance of Nicotinamide Phosphoribosyltransferase as a Key NAD Biosynthesis Enzyme in Metabolic Homeostasis
<p>Nicotinamide phosphoribosyltransferase: NAMPT) is the rate-limiting enzyme in the NAD biosynthesis pathway in mammals. Interestingly, NAMPT has intra- and extracellular forms: iNAMPT and eNAMPT, respectively), and eNAMPT is secreted from adipose tissue as one of the adipokines. However, the …
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Improving the Efficacy and Expanding the Application of NQO1-Bioactivated Therapeutics
… the NAD+ synthesis pathway by inhibiting NAMPT prevented cells from surviving the metabolic stress of NAD+ and ATP depletion induced by PARP1 hyperactivation secondary to ß-lap treatment. This resulted in synergistic cancer cell death at normally sublethal doses of both ß-lap and NAMPT …
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Characterisation of Pharmacological Mechanisms and Potential Therapeutic uses of FK866
… of nicotinamide phosphoribosyltransferase (Nampt) an important enzyme in the NAD+ rescue pathway, has been evaluated in clinical trials against cancer. The aim of this study is to further investigate the mechanisms and therapeutic characteristics of FK866 in different cancer cell lines and …
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Protective effect of Nicotinamide on High glucose (HG)/Palmitate (PA)-induced Glucolipotoxicity to INS-1 beta cells
… cell death. Inhibition of NAD salvage pathway by Nampt inhibitor FK866 or knocking down the Nampt or knocking down the Nmnat did not protect against HG/PA-induced cell death. Furthermore, FK866 did not reduced NAM-induced protective effects. Third, We have investigated whether NAM has protective …
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TARGETING REDOX IN AGING AND ALZHEIMER'S DISEASE
… of key redox dependent biosynthetic enzymes, NAMPT (nicotinamide phosphoribosyl transferase) and NNT (nicotinamide nucleotide transhydrogenase). Moreover, age-related correlations between brain NNT or NAMPT gene expression and NADPH levels suggest that these genes contribute to the age-related …
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Targeting iNAMPT to Break the Obesity-Associated Liver Cancer Link: An In Vitro and In Vivo Approach
… the interference of energy balance in the liver. NAMPT is an enzyme expressed in the liver and is involved in the progression of tumors in obesogenic environments. iNAMPT is known to be the rate-limiting enzyme in the synthesis of NAD, an essential coenzyme involved in ATP synthesis which promotes …
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Impact of metabolic pathways on ER+ metastatic breast cancer therapy response
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01
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The effects of the adipocyte-secreted proteins resistin and visfatin on the pancreatic beta-cell
Adipose tissue secreted proteins (adipokines) have been proposed to form a link between obesity and type 2 diabetes (T2D). Resistin and visfatin are two adipokines which have been previously suggested as having roles in the pancreatic islet. The aim of this study was therefore to investigate the …