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Showing 25 to 36 of 443 entries
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Electro-optic deflectors deliver advantages over acousto-optical deflectors in a high resolution, ultra-fast force-clamp optical trap.

Optics express

Woody MS, Capitanio M, Ostap EM, Goldman YE.
PMID: 29716042
Opt Express. 2018 Apr 30;26(9):11181-11193. doi: 10.1364/OE.26.011181.

We characterized experimental artifacts arising from the non-linear response of acousto-optical deflectors (AODs) in an ultra-fast force-clamp optical trap and have shown that using electro-optical deflectors (EODs) instead eliminates these artifacts. We give an example of the effects of...

Rapid IFM Dissection for Visualizing Fluorescently Tagged Sarcomeric Proteins.

Bio-protocol

Xiao YS, Schöck F, González-Morales N.
PMID: 29423427
Bio Protoc. 2017 Nov 20;7(22). doi: 10.21769/BioProtoc.2606.

Sarcomeres, the smallest contractile unit of muscles, are arguably the most impressive actomyosin structure. Yet a complete understanding of sarcomere formation and maintenance is missing. The

Injury-induced actin cytoskeleton reorganization in podocytes revealed by super-resolution microscopy.

JCI insight

Suleiman HY, Roth R, Jain S, Heuser JE, Shaw AS, Miner JH.
PMID: 28814668
JCI Insight. 2017 Aug 17;2(16). doi: 10.1172/jci.insight.94137. eCollection 2017 Aug 17.

The architectural integrity of tissues requires complex interactions, both between cells and between cells and the extracellular matrix. Fundamental to cell and tissue homeostasis are the specific mechanical forces conveyed by the actomyosin cytoskeleton. Here we used super-resolution imaging...

Contractile and chiral activities codetermine the helicity of swimming droplet trajectories.

Proceedings of the National Academy of Sciences of the United States of America

Tjhung E, Cates ME, Marenduzzo D.
PMID: 28416689
Proc Natl Acad Sci U S A. 2017 May 02;114(18):4631-4636. doi: 10.1073/pnas.1619960114. Epub 2017 Apr 17.

Active fluids are a class of nonequilibrium systems where energy is injected into the system continuously by the constituent particles themselves. Many examples, such as bacterial suspensions and actomyosin networks, are intrinsically chiral at a local scale, so that...

Modulating myosin restores muscle function in a mouse model of nemaline myopathy.

Annals of neurology

Lindqvist J, Levy Y, Pati-Alam A, Hardeman EC, Gregorevic P, Ochala J.
PMID: 26891371
Ann Neurol. 2016 May;79(5):717-725. doi: 10.1002/ana.24619. Epub 2016 Mar 22.

OBJECTIVE: Nemaline myopathy, one of the most common congenital myopathies, is associated with mutations in various genes including ACTA1. This disease is also characterized by various forms/degrees of muscle weakness, with most cases being severe and resulting in death...

Corrigendum: Focal adhesion kinase activity is required for actomyosin contractility-based invasion of cells into dense 3D matrices.

Scientific reports

Mierke CT, Fischer T, Puder S, Kunschmann T, Soetje B, Ziegler WH.
PMID: 28466853
Sci Rep. 2017 May 03;7:46435. doi: 10.1038/srep46435.

No abstract available.

Model to Link Cell Shape and Polarity with Organogenesis.

iScience

Nielsen BF, Nissen SB, Sneppen K, Mathiesen J, Trusina A.
PMID: 31986479
iScience. 2020 Feb 21;23(2):100830. doi: 10.1016/j.isci.2020.100830. Epub 2020 Jan 11.

How do flat sheets of cells form gut and neural tubes? Across systems, several mechanisms are at play: cells wedge, form actomyosin cables, or intercalate. As a result, the cell sheet bends, and the tube elongates. It is unclear...

Multifunctional roles of tropomodulin-3 in regulating actin dynamics.

Biophysical reviews

Parreno J, Fowler VM.
PMID: 30430457
Biophys Rev. 2018 Dec;10(6):1605-1615. doi: 10.1007/s12551-018-0481-9. Epub 2018 Nov 14.

Tropomodulins (Tmods) are proteins that cap the slow-growing (pointed) ends of actin filaments (F-actin). The basis for our current understanding of Tmod function comes from studies in cells with relatively stable and highly organized F-actin networks, leading to the...

Rotation and propulsion in 3D active chiral droplets.

Proceedings of the National Academy of Sciences of the United States of America

Carenza LN, Gonnella G, Marenduzzo D, Negro G.
PMID: 31611412
Proc Natl Acad Sci U S A. 2019 Oct 29;116(44):22065-22070. doi: 10.1073/pnas.1910909116. Epub 2019 Oct 14.

Chirality is a recurrent theme in the study of biological systems, in which active processes are driven by the internal conversion of chemical energy into work. Bacterial flagella, actomyosin filaments, and microtubule bundles are active systems that are also...

A self-organized actomyosin drives multiple intercellular junction disruption and directly promotes neutrophil recruitment in lipopolysaccharide-induced acute lung injury.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Chen B, Yang Z, Yang C, Qin W, Gu J, Hu C, Chen A, Ning J, Yi B, Lu K.
PMID: 29879372
FASEB J. 2018 Jun 07;fj201701506RR. doi: 10.1096/fj.201701506RR. Epub 2018 Jun 07.

Acute lung injury (ALI), with the hallmarks of vascular integrity disruption and neutrophil recruitment, is associated with high morbidity and mortality. Enhanced actomyosin assembly contributes to endothelial cell contact dysfunction. However, the roles and mechanisms of actomyosin assembly in...

Kinetics of Extracellular Protease From the Obligately Psychrophilic Vibrio OP7 of Fish Origin.

Journal of food protection

Makarios-Laham IK, Traxler RW.
PMID: 31051592
J Food Prot. 1991 Aug;54(8):578-581. doi: 10.4315/0362-028X-54.8.578.

The extracellular protease recovered from the obligately psychrophilic marine Vibrio OP7 of fish origin was able to degrade fish actomyosin at 5°C. The V

Extent of myosin penetration within the actin cortex regulates cell surface mechanics.

Nature communications

Truong Quang BA, Peters R, Cassani DAD, Chugh P, Clark AG, Agnew M, Charras G, Paluch EK.
PMID: 34764258
Nat Commun. 2021 Nov 11;12(1):6511. doi: 10.1038/s41467-021-26611-2.

In animal cells, shape is mostly determined by the actomyosin cortex, a thin cytoskeletal network underlying the plasma membrane. Myosin motors generate tension in the cortex, and tension gradients result in cellular deformations. As such, many cell morphogenesis studies...

Showing 25 to 36 of 443 entries