Results 61 to 70 of about 42,593 (240)

Cholesterol Promotes Lung Adenocarcinoma Brain Metastasis by Stabilizing EGFR Protein to Drive EMT, Metabolic Reprogramming, and Premetastatic Niche Formation

Advanced Science, EarlyView.
Cholesterol is revealed as a multitasking fuel for lung adenocarcinoma brain metastasis: it locks EGFR at the membrane to sustain AKT/NF‐κB–driven glycolysis and EMT, loosens the blood–brain barrier by promoting Claudin‐5 loss, and rewires microglia through IL‐4R lipid‐raft–JAK1/STAT6 signaling.
Ying Chen, Xiaoteng Cui, Xinyi Shi, Xu Yang, Yujing Cao, Haolin LI, Qi Zhan, Qixue Wang, Ang Li, Qihong Cheng, Yunfei Wang, Junhu Zhou, MingJie Wang, Chunsheng Kang, Xiaomin Liu   +14 more
wiley   +1 more source

Loss of Frataxin induces iron toxicity, sphingolipid synthesis, and Pdk1/Mef2 activation, leading to neurodegeneration

eLife, 2016
Mutations in Frataxin (FXN) cause Friedreich’s ataxia (FRDA), a recessive neurodegenerative disorder. Previous studies have proposed that loss of FXN causes mitochondrial dysfunction, which triggers elevated reactive oxygen species (ROS) and leads to the
Kuchuan Chen, Guang Lin, Nele A Haelterman, Tammy Szu-Yu Ho, Tongchao Li, Zhihong Li, Lita Duraine, Brett H Graham, Manish Jaiswal, Shinya Yamamoto, Matthew N Rasband, Hugo J Bellen   +11 more
doaj   +1 more source

The Equilibria of Sphingolipid-Cholesterol and Sphingolipid–Sphingolipid in Monolayers at the Air–Water Interface [PDF]

The Journal of Membrane Biology, 2012
Monolayers of sphingomyelin (SM), ceramide (Cer) and cholesterol (Ch) and binary mixtures SM-Ch, SM-Cer and Cer-Ch were investigated at the air-water interface. SM, Cer and Ch were used in the experiment. The surface tension values of pure and mixed monolayers were used to calculate π-A isotherms.
Petelska, Aneta Dorota, Figaszewski, Zbigniew Artur   +1 more
openaire   +2 more sources

A Cost‐Effective Hybrid Method For Homogeneous Matrix Coating in Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry Imaging Using Simultaneous Spin and Spray Deposition

Analysis &Sensing, EarlyView.
This study introduces an in‐house spin coater for matrix‐assisted laser desorption/ionization mass spectrometry imaging, providing homogeneous matrix deposition via simultaneous spray and spin. The approach yields reproducible signals and clear metabolite distributions in complex tissues.
Lanaia Ítala Louzeiro Maciel, Jussara Valente Roque, Almir Custodio Batista Junior, Gabriel Henry Morais Dufrayer, Naará da Silva Balbino, Keilah Valéria Naves Cavalcante, Marcos Divino Ferreira Junior, Andrea Rodrigues Chaves, Boniek Gontijo Vaz   +8 more
wiley   +1 more source

Fasting and Refeeding Mediated Phospholipid Remodeling Plays an Important Role in Improving Meat Quality of Aged Laying Hens

Animal Research and One Health, EarlyView.
ABSTRACT This study explored fasting‐induced physiological remodeling effects on meat quality in aged laying hens. Fasting for 15 days (F15) significantly reduced abdominal fat, intermuscular fat width, subcutaneous fat thickness, and liver index versus pre‐fasting (F0) (p < 0.05), which recovered post‐refeeding.
Xiaoran Zhang, Jun Zhang, Yadong Tian, Donghua Li, Yanhua Zhang, Lujie Zhang, Yujie Gong, Xiangtao Kang, Ruirui Jiang   +8 more
wiley   +1 more source

Sphingolipids in COPD

European Respiratory Review, 2019
Sphingolipids are a distinct class of lipid molecules widely found in nature, principally as cell membrane constituents. After initial uncertainty about their function, sphingolipids have been increasingly recognised to be metabolically active entities involved in many biological processes, including the control of inflammation. Their role as mediators
Raja Chandra Chakinala, Akshay Khatri, Kriti Gupta, Kengo Koike, Oleg Epelbaum   +4 more
openaire   +3 more sources

Milk: Nature's Unique Nutritional Package

Animal Research and One Health, EarlyView.
ABSTRACT Plant‐based beverages that attempt to mimic milk are increasingly popular with consumers, but there are profound differences in nutritional composition and microstructure compared to milk. A structural nutrition approach is needed to understand the effect on digestibility of microstructures, bioaccessibility and bioavailability of components ...
David W. Everett, Caroline Thum
wiley   +1 more source

Use of isotopically labeled substrates reveals kinetic differences between human and bacterial serine palmitoyltransferase

Journal of Lipid Research, 2019
Isotope labels are frequently used tools to track metabolites through complex biochemical pathways and to discern the mechanisms of enzyme-catalyzed reactions.
Peter J. Harrison, Kenneth Gable, Niranjanakumari Somashekarappa, Van Kelly, David J. Clarke, James H. Naismith, Teresa M. Dunn, Dominic J. Campopiano   +7 more
doaj   +1 more source

Molecular Stratification of Antiphospholipid Syndrome Through Integrative Analysis of the Whole‐Blood RNA Transcriptome

Arthritis &Rheumatology, EarlyView.
Objective Antiphospholipid syndrome (APS) is a thromboinflammatory disorder characterized by clinical and mechanistic heterogeneity that complicates early diagnosis and hinders targeted treatment. We aimed to identify distinct molecular endotypes among antiphospholipid antibody (aPL)–positive patients using whole‐blood transcriptomics.
Amala Ambati, Feiyang Ma, Katarina Kmetova, Sherwin Navaz, Claire K. Hoy, Cyrus Sarosh, Ajay Tambralli, Erika Navarro‐Mendoza, Johann E. Gudjonsson, J. Michelle Kahlenberg, Jacqueline A. Madison, Alí Duarte‐García, Jason S. Knight, Yu Zuo   +13 more
wiley   +1 more source

Sphingolipid Metabolism in Glioblastoma and Metastatic Brain Tumors: A Review of Sphingomyelinases and Sphingosine-1-Phosphate

Biomolecules, 2020
Glioblastoma (GBM) is a primary malignant brain tumor with a dismal prognosis, partially due to our inability to completely remove and kill all GBM cells. Rapid tumor recurrence contributes to a median survival of only 15 months with the current standard
Cyntanna C. Hawkins, Tomader Ali, Sasanka Ramanadham, Anita B. Hjelmeland   +3 more
doaj   +1 more source