Results 51 to 60 of about 50,966 (244)

Reactive oxygen species are involved in regulating α₁-adrenoceptor-activated vascular smooth muscle contraction

Journal of Biomedical Science, 2010
Background Reactive oxygen species (ROS) were shown to mediate aberrant contractility in hypertension, yet the physiological roles of ROS in vascular smooth muscle contraction have remained elusive.
Tsai Ming-Ho, Jiang Meei
doaj   +1 more source

Patient‐Derived 3D Heart‐On‐a‐Chip Model of Dilated Cardiomyopathy With Embedded Bead‐Based Mapping of Tissue Contractility

Advanced Healthcare Materials, EarlyView.
A heart‐on‐a‐chip model of dilated cardiomyopathy is developed from patient‐derived induced pluripotent stem cells. The model recapitulates key disease phenotypes and enables functional assessment through integrated bead‐based tracking and pillar deflection measurements.
Ali Mousavi, Ludovic Mouttet, Shihao Cui, Yasaman Hekmatnia, Mehran Mottahedi, Ida Derish, Naimeh Rafatian, Mark Aurousseau, Gregor Andelfinger, Renzo Cecere, Houman Savoji   +10 more
wiley   +1 more source

Mechanotransduction of Magnetically Applied Forces Leads to Mechanical Stiffening of Platelet‐Rich Plugs

Advanced Healthcare Materials, EarlyView.
A microfluidic device with magnetic microposts was used to assess platelet mechanobiology. The oscillatory actuation of posts with embedded iron particles was dampened by the dynamic stiffening of the platelet‐rich plugs. This stiffening process increased with applied load, but inhibiting platelet activation (ASA) or myosin contractility (blebbistatin)
Nikita Taparia, Ava M. Obenaus, Yoeur‐Man T. Mach, Nakul Sridhar, Nathan J. Sniadecki   +4 more
wiley   +1 more source

Myosin IIb activity and phosphorylation status determines dendritic spine and post-synaptic density morphology. [PDF]

PLoS ONE, 2011
Dendritic spines in hippocampal neurons mature from a filopodia-like precursor into a mushroom-shape with an enlarged post-synaptic density (PSD) and serve as the primary post-synaptic location of the excitatory neurotransmission that underlies learning ...
Jennifer L Hodges, Karen Newell-Litwa, Hannelore Asmussen, Miguel Vicente-Manzanares, Alan Rick Horwitz   +4 more
doaj   +1 more source

The new life of myectomy in the era of myosin inhibitors

Progress in Cardiovascular Diseases
The management of symptomatic obstructive hypertrophic cardiomyopathy remains a therapeutic clinical challenge. Surgical septal myectomy has long been established as the gold-standard intervention for patients with persistent symptoms despite optimal medical therapy, offering durable symptom relief with low perioperative risk in experienced centers ...
Quarta, Giovanni, Cattaneo, Roberta, Bonacchi, Giacomo, Manca, Anna Rita, Cerillo, Alfredo Giuseppe, Iacovoni, Attilio, Quintana, Eduard, Pentiricci, Samuele, Stefano, Pierluigi, Senni, Michele, Olivotto, Iacopo   +10 more
openaire   +2 more sources

Perivascular Matrix Densification Dysregulates Angiogenesis and Activates Pro‐Inflammatory Endothelial Cells

Advanced Science, EarlyView.
Perivascular matrix densification promotes the emergence of aberrant endothelial tip cells (ATECs) that invade and persist within fibrotic microenvironments. Using in vivo lineage tracing and a human microvessel model, this study shows that fibrous matrix cues destabilize VE‐cadherin–mediated junctions to gate TGF‐β signaling, inducing a pro ...
Jingyi Xia, William Y. Wang, Kyle A. Jacobs, Kairav Maniar, Daphne Lin, Evan H. Jarman, Daniel L. Matera, Kristen Loesel, Christopher D. Davidson, Harrison L. Hiraki, Xiaotian Tan, Eve H. Shikanov, Robert N. Kent, Carole Parent, Xudong Fan, Ariella Shikanov, Matthew L. Kutys, Brendon M. Baker   +17 more
wiley   +1 more source

Mavacamten facilitates myosin head ON‐to‐OFF transitions and shortens thin filament length in relaxed mouse skeletal muscle

Physiological Reports
The first‐in‐its‐class cardiac drug mavacamten shifts myosin heads towards a structurally inactive position where they lay along the helical tracks of the thick filament.
Michel N. Kuehn, Nichlas M. Engels, Devin L. Nissen, Johanna K. Freundt, Weikang Ma, Samantha P. Harris, Thomas C. Irving, Wolfgang A. Linke, Anthony L. Hessel   +8 more
doaj   +1 more source

Glioma Cell Migration on Three-dimensional Nanofiber Scaffolds Is Regulated by Substrate Topography and Abolished by Inhibition of STAT3 Signaling

Neoplasia: An International Journal for Oncology Research, 2011
A hallmark of malignant gliomas is their ability to disperse through neural tissue, leading to long-term failure of all known therapies. Identifying new antimigratory targets could reduce glioma recurrence and improve therapeutic efficacy, but screens ...
Paula A. Agudelo-Garcia, Jessica K. De Jesus, Shante P. Williams, Michal O. Nowicki, Ennio Antonio Chiocca, Sandya Liyanarachchi, Pui-Kai Li, John J. Lannutti, Jed K. Johnson, Sean E. Lawler, Mariano S. Viapiano   +10 more
doaj   +1 more source

Tropomyosin 1 Promotes Platelet Adhesion and Clot Contraction Separate from Its Roles in Developmental Hematopoiesis

Advanced Science, EarlyView.
ABSTRACT Genome‐wide association studies (GWAS) link the Tropomyosin 1 (Tpm1) locus to quantitative blood trait variation, but related mechanisms are unclear. Tpm1 encodes an actin‐binding protein that regulates actin filament diversity, cell adhesion, signaling, and actomyosin contractility.
Po‐Lun Kung, Victor Tsao, Alina D Peshkova, Oscar A. Marcos‐Contreras, Kim Ha, Brian M Dulmovits, Nkemdilim Okoli, Anvi Sinha, Gennadiy Fonar, Rong Qiu, Rolf D Bates, Janelle Yeboah, Carson Shalaby, Tyler Truex, Soomin Jeong, Edna C Hardeman, Peter W Gunning, Vladimir R Muzykantov, Jacob W Myerson, Christopher S Thom   +19 more
wiley   +1 more source

Combinatorial targeting of G‐protein‐coupled bile acid receptor 1 and cysteinyl leukotriene receptor 1 reveals a mechanistic role for bile acids and leukotrienes in drug‐induced liver injury

Hepatology, EarlyView., 2022
CHIN117 is a dual cysteinyl leukotriene receptor 1 (CYSLTR1) antagonist and G‐protein‐coupled bile acid receptor 1 (GPBAR1) agonist. In the liver, GPBAR1 and CYSLTR1 are coexpressed by liver sinusoidal endothelial cells (LSECs), HSCs, circulating monocytes/macrophages, and liver resident macrophages (Kupffer cells).
Michele Biagioli, Silvia Marchianò, Cristina di Giorgio, Rosalinda Roselli, Martina Bordoni, Rachele Bellini, Bianca Fiorillo, Valentina Sepe, Bruno Catalanotti, Chiara Cassiano, Maria Chiara Monti, Eleonora Distrutti, Angela Zampella, Stefano Fiorucci   +13 more
wiley   +1 more source