Results 71 to 80 of about 57,321 (288)

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

Sphingolipid biosynthesis in Physcomitrella patens [PDF]

, 2020
The complex sphingolipid classes glycosylceramides (GlcCers) and glycosyl inositolphosphorylceramides (GIPCs) are essential membrane components in plant cells. However, the regulation of their synthesis and their distinct physiological roles in plants is
Gömann, Jasmin
core   +1 more source

ACSL4‐Dependent Lysosomal Lipid Peroxidation Links WTAP‐Mediated m6A Modification to Intervertebral Disc Degeneration

Advanced Science, EarlyView.
IL‐1β upregulates the protein level of WTAP, which promotes the m6A modification of ACSL4 mRNA in an IGF2BP2‐dependent manner, thereby enhancing its stability. The increased ACSL4 drives lipid peroxidation, leading to lysosomal membrane permeabilization (LMP) and impaired mitophagy, which collectively accelerate intervertebral disc degeneration (IVDD).
Shu Jia, Xu Gao, Laimin Zhu, Haixia Song, Jing Wu, Shang Chen, Sheng Gao, Lu Zhang, Chunyang Meng   +8 more
wiley   +1 more source

The Cancer Cell Metabolic Reprogramming Remodels the Tumor Microenvironment: Molecular Mechanisms and Therapeutic Strategies

Advanced Science, EarlyView.
This review elucidates how cancer cell metabolic reprogramming—across glucose, lipid, amino acid, and nucleotide pathways—remodels the tumor microenvironment to suppress anti‐tumor immunity and promote immune escape. Targeting these metabolic axes offers promising strategies to overcome immunotherapy resistance and enhance cancer treatment.
Guoqing Xiang, Zhicheng Zhou, Xue Jiang, Zhenguang Du, Yangyang Zhan, Xinli Liu   +5 more
wiley   +1 more source

Sphingolipids in Major Depression

Neurosignals, 2015
Major depression is one of the most common and severe diseases affecting the world's population. However, the pathogenesis of the disease remains inadequately defined. Previously, a lack of monoaminergic neurotransmitters was the focus of pathophysiological concepts; however, recent concepts focus on a alteration of neurogenesis in the hippocampus ...
Jernigan, Peter L., Hoehn, Richard S., Grassmé, Heike, Edwards, Michael J., Müller, Christian P., Kornhuber, Johannes, Gulbins, Erich   +6 more
openaire   +4 more sources

Multifunctional Nanovaccine‐Radiotherapy Synergy Drives Anti‐Tumor Immunity via Multi‐Cascade Cell Death for Pancreatic Cancer Therapy

Advanced Science, EarlyView.
Machine‐learning‐driven transcriptomic analysis identifies FSTL3 as a key tumor‐microenvironment regulator in desmoplastic pancreatic adenocarcinoma. A cRGD‐modified liposome co‐loading gemcitabine and siFSTL3 serves as an irradiation‐triggered in situ nanovaccine. It synergizes with radiotherapy to induce ferroptosis and immunogenic cell death through
Chengyi Huang, Yushu Han, Xiang Liu, Chuanhao Wang, Xiaofei Zhu, Di Chen, Yangyang Gong, Liang Chen, Wenjuan Chen, Zhenyuan Miao, Bufu Tang, Huojun Zhang   +11 more
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

Functional identification of a delta8-sphingolipid desaturase from Borago officinalis

, 2001
The similarities between Δ12- and Δ15-fatty acyl desaturase sequences were used to construct degenerate primers for PCR experiments with cDNA transcribed from mRNA of developing borage seeds.
Heinz, E., Libisch, B., Napier, J. A., Zahringer, U., Sperling, P.   +4 more
core   +1 more source

SIRT5‐Mediated Desuccinylation of ACAA2 Protects Against Calcium Oxalate‐Induced Kidney Injury by Regulating Fatty Acid Oxidation to Suppress Mitochondrial Oxidative Injury and Ferroptosis

Advanced Science, EarlyView.
The SIRT5/ACAA2 axis maintains lipid metabolic homeostasis in RTECs by promoting ACAA2 desuccinylation and preserving its stability and enzymatic activity, thereby sustaining FAO and limiting PUFA and PUFA‐containing phospholipid accumulation. Under CaOx stress, SIRT5 downregulation impairs FAO, promotes oxidative stress and ferroptosis, and enhances ...
Qinhong Jiang, Caitao Dong, Yuchen Liu, Yuanquan Lou, Wenlong Lin, Sheng Li, Ziqi He   +6 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