Results 111 to 120 of about 180,856 (396)

Acidosis Forces Fatty Acid Uptake and Metabolism in Cancer Cells Regardless of Genotype

Advanced Science, EarlyView.
This study demonstrates that biological acidosis, commonly observed in tumors and ischemic conditions, actively promotes the protonation of fatty acids, thereby facilitating the uptake of their neutral forms. Consequently, the preference for lipid metabolism in acid‐exposed cells does not arise from genetic reprogramming that prioritizes lipids as the ...
Sébastien Ibanez, Maria Virginia Giolito, Sultan Al‐Siyabi, Kristian Serafimov, Florine Laloux, Emeline Dierge, Léo Aubert, Céline Guilbaud, Selena Kaye, Paula Varon, Dorothée Marchand, Hanne Vlieghe, Emmanuel Hermans, Caroline Bouzin, Davide Brusa, Christiani Andrade Amorim, Barabara Pachikian, Yvan Larondelle, Cyril Corbet, Chantal Dessy, Olivier Feron   +20 more
wiley   +1 more source

Arrhythmogenic influence of mutations in a myocyte-based computational model of the pulmonary vein sleeve

Scientific Reports, 2022
In the heart, electrophysiological dysregulation arises from defects at many biological levels (from point mutations in ion channel proteins to gross structural abnormalities).
Karoline Horgmo Jæger, Andrew G. Edwards, Wayne R. Giles, Aslak Tveito   +3 more
doaj   +1 more source

Modeling effects of L-type ca(2+) current and na(+)-ca(2+) exchanger on ca(2+) trigger flux in rabbit myocytes with realistic T-tubule geometries. [PDF]

, 2012
The transverse tubular system of rabbit ventricular myocytes consists of cell membrane invaginations (t-tubules) that are essential for efficient cardiac excitation-contraction coupling. In this study, we investigate how t-tubule micro-anatomy, L-type Ca(
Andrew D McCulloch, Anushka Plamenova Michailova, Frank B Sachse, Frank B Sachse, J Andrew eMcCammon, Johan E Hake, Johan E Hake, John H Bridge, Michael J Holst, Peter M Kekenes-Huskey, Yuhui eCheng   +10 more
core   +2 more sources

A Redox‐Active and Electroactive Hydrogel Enabled by an Integrated PEDOT@PMOF Nanofiller for Post‐Infarct Myocardial Repair

Advanced Science, EarlyView.
An integrated nanoparticle PEDOT@PMOF is constructed as a redox‐active nanozyme and electroactive nanofiller in a cell‐affinity hydrogel platform for acute MI treatment. It is demonstrated that MOF‐based nanozymes have good catalytic ability, and the incorporation of PEDOT increases the conductivity.
Shuyi He, Linyu Long, Wenqi Liu, Zhicun Wang, Xiaofeng Wu, Li Yang, Yunbing Wang   +6 more
wiley   +1 more source

Quality Metrics for Stem Cell-Derived Cardiac Myocytes

Stem Cell Reports, 2014
Advances in stem cell manufacturing methods have made it possible to produce stem cell-derived cardiac myocytes at industrial scales for in vitro muscle physiology research purposes.
Sean P. Sheehy, Francesco Pasqualini, Anna Grosberg, Sung Jin Park, Yvonne Aratyn-Schaus, Kevin Kit Parker   +5 more
doaj   +1 more source

Muscle Organoids Reveal Exercise‐Like Contractions Rapidly Promote Muscle Health Via Lamtor1's Signaling to Both AMPK and mTOR

Advanced Science, EarlyView.
This study develops a novel 3D human skeletal muscle organoid platform to study the immediate molecular effects of exercise‐like contractions. The model uncovers rapid proteomic and transcriptomic responses, resolving a fundamental paradox by demonstrating how exercise‐induced Lamtor1 coordinately activates both AMPK and mTORC1. Lamtor1 is a compelling
Ziyue Yao, Zongmin Jiang, Xupeng Liu, Liping Zhang, Siyu Guo, Yu Chen, Lanfang Luo, Shilin Ma, Peng Wang, Ng Shyh‐Chang   +9 more
wiley   +1 more source

Network Reconstruction and Systems Analysis of Cardiac Myocyte Hypertrophy Signaling*

Journal of Biological Chemistry, 2012
Background: Little is known about how global signaling network properties influence cardiac myocyte hypertrophy. Results: New 106 species computational model exhibited enriched cross-talk motifs and modular organization, predicting Ras as the most ...
K. Ryall, David O. Holland, Kyle Delaney, Matthew J. Kraeutler, A. J. Parker, J. Saucerman   +5 more
semanticscholar   +1 more source

FMO2 Promotes Angiogenesis via Regulation of N‐Acetylornithine

Advanced Science, EarlyView.
This study identifies flavin‐containing monooxygenase 2 (FMO2) as a novel proangiogenic regulator in endothelial cells. Targeted FMO2 ablation impairs vessel sprouting, whereas its compensation potently enhances angiogenesis. Metabolomics and single‐cell sequencing reveal that FMO2 drives vascular growth via the N‐acetylornithine/ATF3/NOTCH1 axis ...
Jingyi Wang, Yinghui Xu, Xianpeng Wu, Mo Li, Changchen Xiao, Zaiyang Fu, Yongjian Chen, Qingju Li, Yating Ruan, Jing Zhao, Zhiwei Zhong, Jinghai Chen, Wei Zhu, Jinliang Nan, Cheng Ni, Xinyang Hu   +15 more
wiley   +1 more source

Ninjurin1 regulates striated muscle growth and differentiation.

PLoS ONE, 2019
Chronic pressure overload due to aortic valve stenosis leads to pathological cardiac hypertrophy and heart failure. Hypertrophy is accompanied by an increase in myocyte surface area, which requires a proportional increase in the number of cell-cell and ...
Melanie Kny, Kitti D Csályi, Kristin Klaeske, Katharina Busch, Alexander M Meyer, Anne M Merks, Katrin Darm, Elke Dworatzek, Daniela Fliegner, Istvan Baczko, Vera Regitz-Zagrosek, Christian Butter, Friedrich C Luft, Daniela Panáková, Jens Fielitz   +14 more
doaj   +1 more source

Genetically engineered cardiac pacemaker: stem cells transfected with HCN2 gene and myocytes - a model

, 2005
Artificial biological pacemakers were developed and tested in canine ventricles. Next steps will require obtaining oscillations sensitive to external regulations, and robust with respect to long term drifts of expression levels of pacemaker currents and ...
Kanani, Sandra, Krinsky, Valentine, Pumir, Alain   +2 more
core