Results 71 to 80 of about 21,172,428 (334)

Amphiregulin and Epiregulin Confer Radioresistance in Esophageal Squamous Cell Carcinoma Through Oxidative Phosphorylation

Advanced Science, EarlyView.
Oxidative phosphorylation (OXPHOS) activity serves as a critical metabolic determinant of radiotherapy outcomes in esophageal squamous cell carcinoma (ESCC). The CEBPB/AREG/EREG axis drives radioresistance in ESCC by reprogramming OXPHOS. AREG and EREG function as predictive biomarkers for nCRT response and prognosis of ESCC patients.
Zhang Lin, Meilian Yao, Xin Xu, Dong Zhang, Lei Xu, Ling Rong, Xiaohang Wang, Yi Duan, Chengkun Chen, Jun Gu, Yao Zhang, Qiang Liu, Qing Ye, Gaoping Cui, Yujun Hao, Xiumei Ma   +15 more
wiley   +1 more source

Dose Dependence of the Separate and Combined Impact of Copper-Oxide and Selenium-Oxide Nanoparticles on Oxygen Consumption by Cells With or Without the Background Action of Some Modulators of the Mitochondrial Respiratory Function

Dose-Response, 2023
We had previously demonstrated on various stable cell cultures exposed to chemically different nanoparticles when assessing their cytotoxicity by different outcomes, dose-response relationships may be either monotonic or non-monotonic falling within an ...
Tatiana V. Bushueva, Vladimir G. Panov, Ilzira A. Minigalieva, Larisa I. Privalova, Maria S. Vedernikova, Vladimir B. Gurvich, Marina P. Sutunkova, Boris A. Katsnelson   +7 more
doaj   +1 more source

Single‐Cell Metabolic Imaging Reveals Glycogen‐Driven Adaptations in Endothelial Cells

Advanced Science, EarlyView.
Single‐cell metabolic imaging of diabetes‐associated endothelial dysfunction by SRS microscopy reveals dynamic glycogen storage and its role in modulating metabolic adaptations under glucose starvation. Abstract Endothelial dysfunction (ED) is a defining feature of diabetes mellitus (DM) and a key contributor to many metabolic and cardiovascular ...
Rahuljeet S. Chadha, Benjamin Yang, Dongqiang Yuan, Edmund D. Kapelczak, Philip A. Kocheril, Alonso Tapia, Shivansh Mahajan, Adrian Colazo, Naseeb K. Malhi, Joseph A. Ambarian, Xuejing Liu, Tara A. TeSlaa, Zhen B. Chen, Lu Wei   +13 more
wiley   +1 more source

Mitochondrial CISD1 Modulates Microglial Metabolic Reprogramming to Drive Stress Susceptibility in Mice

Advanced Science, EarlyView.
CDGSH iron sulfur domain 1 (CISD1) mitigates oxidative stress by promoting NADH oxidation and Coenzyme Q (CoQ) reduction. Under chronic stress, elevated CISD1 expression in microglia enhances NAD⁺ production, thereby increasing GAPDH activity and glycolytic flux, while reducing ATP synthesis by inhibiting proton transfer from mitochondrial complexes I ...
Wanting Dong, Duo Liu, Songsen Fu, Jiaming Zhang, Xi Chen, Songqiang Huang   +5 more
wiley   +1 more source

Off-target effects of mitochondrial oxidative phosphorylation inhibitors are common and can compromise the viability of cultured cells

Mitochondrial Communications
Mitochondrial respiratory chain inhibitors (MRCIs) are indispensable for studying cellular bioenergetics and its effects on various cellular processes.
Natalya Kozhukhar, Mikhail F. Alexeyev
doaj   +1 more source

A Cold Stress‐Activated Endocrine Sentinel Chemical Hormone Promotes Insect Survival via Mitochondrial Adaptations Through the Adipokinetic Hormone Receptor

Advanced Science, EarlyView.
Seasonal cold adaptation is vital for insect survival, yet the molecular mechanisms linking diapause to mitochondrial resilience remain largely unresolved. We identify ascaroside C9 (asc‐C9) as a key endocrine signal that enhances diapause survival during cold stress by activating the AKHR–PGC1α–UCP4 axis, thereby driving cold‐induced lipolysis and ...
Jiao Zhou, Junxian Chen, Hongxia Zhang, Lu Guo, Kevin Mai, Elijah Abraham, Dilip V. Prajapati, Yue Chang, Jing Ning, Xinchen Wang, Defeng Li, Dan‐Dan Zhang, Jianghua Sun, Rebecca A. Butcher, Lilin Zhao   +14 more
wiley   +1 more source

NAD⁺ Reduction in Glutamatergic Neurons Induces Lipid Catabolism and Neuroinflammation in the Brain via SARM1

Advanced Science, EarlyView.
NAD⁺ homeostasis maintains neuronal integrity through opposing actions of NMNAT2 and SARM1. Loss of NMNAT2 in glutamatergic neurons reprograms cortical metabolism from glucose to lipid catabolism, depletes lipid stores, and triggers inflammation and neurodegeneration.
Zhen‐Xian Niou, Sen Yang, Andrea Enriquez, Nino A. Espinas, Anoosha Sri, Caliel D. Hines, Jason M. Tennessen, Chia‐Shan Wu, Jui‐Yen Huang, Hui‐Chen Lu   +9 more
wiley   +1 more source

A single Sfp-type phosphopantetheinyl transferase plays a major role in the biosynthesis of PKS and NRPS derived metabolites in Streptomyces ambofaciens ATCC23877. [PDF]

PLoS ONE, 2014
The phosphopantetheinyl transferases (PPTases) are responsible for the activation of the carrier protein domains of the polyketide synthases (PKS), non ribosomal peptide synthases (NRPS) and fatty acid synthases (FAS).
Robert Bunet, Ramona Riclea, Luisa Laureti, Laurence Hôtel, Cédric Paris, Jean-Michel Girardet, Dieter Spiteller, Jeroen S Dickschat, Pierre Leblond, Bertrand Aigle   +9 more
doaj   +1 more source

HRS Degradation‐Induced Nicotinamide Deficiency in Placental Extracellular Vesicles Triggers Preeclampsia by Disrupting Maternal‐Fetal Immune Homeostasis

Advanced Science, EarlyView.
This study shows that lower NAM levels in PE‐derived pEVs correlate with disease severity. NAM‐deficient pEVs reduce Th1 and Th17 inhibition, leading to PE‐like symptoms. NAM in pEVs inhibits Th1 via SIRT1 and Th17 via macrophages. Reduced NAM in PE‐EVs is due to decreased HRS expression in trophoblasts, resulting from elevated HSP27.
Haiyi Fei, Yuhan Lin, Xiu Liu, Xiaohong Zhu, Xiaowen Lu, Zhan Shi, Fan Jia, Shiqian Xu, Ling Fang, Lingling Jiang, Songying Zhang   +10 more
wiley   +1 more source

Antimycin A treatment decreases respiratory internal rotenone-insensitive NADH oxidation capacity in potato leaves

BMC Plant Biology, 2004
Background The plant respiratory chain contains several energy-dissipating enzymes, these being type II NAD(P)H dehydrogenases and the alternative oxidase, not present in mammals.
Svensson Å Staffan, Johansson Fredrik I, Geisler Daniela A, Rasmusson Allan G   +3 more
doaj   +1 more source