#myosin — Public Fediverse posts

18-Feb-2026
#SelfOrganization
of cell-sized #chiral rotating actin rings driven by a chiral #myosin
Researchers explore how actin filaments and a motor protein can spontaneously give rise to cell-sized structures

https://www.eurekalert.org/news-releases/1116748

#science #nanoworld

📰 "cPLA2α Targeting to Exosomes Connects Nuclear Deformation to LTB4-Signaling During Neutrophil Chemotaxis"
https://www.biorxiv.org/content/10.1101/2025.07.02.662855v1?rss=1 #Mechanical #Myosin

📰 "Research into the physiology of myosins - a personal odyssey"
https://doi.org/doi:10.4081/ejtm.2025.13688
https://pubmed.ncbi.nlm.nih.gov/40576020/
#Mechanical #Myosin

📰 "Automated Tracking of Learned Actin Structures (ATLAS) in the Motility Assay"
https://doi.org/doi:10.1016/j.bpr.2025.100221
https://pubmed.ncbi.nlm.nih.gov/40550418/
#Mechanical #Myosin #Actin

📰 "The Power Stroke Mechanism of Muscle Contraction at the Confluence of Biology and Physics"
https://arxiv.org/abs/2410.07193 #Mechanical #Q-Bio.Bm #Q-Bio.Cb #Myosin

📰 "Delayed phosphate release can highly improve energy efficiency of muscle contraction"
https://doi.org/doi:10.1016/j.bpj.2025.06.002
https://pubmed.ncbi.nlm.nih.gov/40481628/
#Mechanical #Myosin

📰 "Considering the effect of Pi rebinding on myosin dynamics based on the distinct functions of cardiac and skeletal myosin"
https://doi.org/doi:10.3389/fphys.2025.1605321
https://pubmed.ncbi.nlm.nih.gov/40453110/
#Mechanical #Dynamics #Myosin

📰 "Microscale velocity-dependent unbinding generates a macroscale performance-efficiency tradeoff in actomyosin systems"
https://doi.org/doi:10.1038/s42003-025-08098-5
https://pubmed.ncbi.nlm.nih.gov/40355470/
#Actomyosin #Mechanical #Myosin

Physicists from Bayreuth & Grenoble found a new way cells move—without relying on the myosin motor. This challenges long-held views and could impact disease treatment. Published in Physical Review Letters.
https://www.uni-bayreuth.de/en/press-release/cell-migration-actin
#Myosin #Cells #UBT #UniBayreuth #Science #Research

📰 "PIP2-Tmie Interactions Drive Mammalian Hair Cell Slow Adaptation Independently of Myosin Motors"
https://www.biorxiv.org/content/10.1101/2025.04.01.646713v1?rss=1 #Mechanical #Myosin #Cell

📰 "A role for Myosin in triggering and executing amnioserosa cell delaminations during dorsal closure."
https://www.biorxiv.org/content/10.1101/2025.03.21.644291v1?rss=1 #Morphogenesis #Myosin #Cell

📰 "Fluid mechanics of sarcomeres as porous media"
https://arxiv.org/abs/2503.14202 #Physics.Flu-Dyn #Physics.Bio-Ph #Cond-Mat.Soft #Mechanics #Dynamics #Myosin

📰 "Ca (2+) increases cardiac muscle viscoelasticity independent of active force development"
https://doi.org/doi:10.1101/2025.02.26.640328
https://pubmed.ncbi.nlm.nih.gov/40060454/
#Mechanical #Myosin #Force

📰 "Theoretical Analysis of Power-Law Stress Relaxation and Calcium-Dependent Passive Mechanics in Cardiac Muscle"
https://www.biorxiv.org/content/10.1101/2025.02.26.640338v1?rss=1 #Mechanical #Mechanics #Myosin

📰 "Ca2+ increases cardiac muscle viscoelasticity independent of active force development"
https://www.biorxiv.org/content/10.1101/2025.02.26.640328v1?rss=1 #Mechanical #Myosin #Force

📰 "High-resolution structures of Myosin-IC reveal a unique actin-binding orientation, ADP release pathway, and power stroke trajectory"
https://doi.org/doi:10.1073/pnas.2415457122
https://pubmed.ncbi.nlm.nih.gov/40014570/
#Mechanical #Myosin

📰 "Active gel theory for cell migration with two myosin isoforms"
https://arxiv.org/abs/2502.11833 #Physics.Bio-Ph #Cond-Mat.Soft #CellMigration #Q-Bio.Cb #Myosin #Force #Cell

Our article on the #mechanics of "active" entropic biopolymer networks [possibly including #actomyosin, this is debated experimentally] is now published in J Elas.

Compared to enthalpic models, we're able to go right from the #thermodynamics of an unbiased #molecularMotor activity (in the spirit of the model by #JacquesProst for #myosin) at the molecular scale to a network-scale model in a closed form.

And we derive a method for solving quite easily the (usually tough) #viscoelastic #liquid model that we obtain, using #deformationGradientDecomposition.

https://doi.org/10.1007/s10659-024-10102-8
(I share a paywall-free link to my followers below, but it's also on arXiv: https://arxiv.org/abs/2405.07287 and on my webpage https://liphy-annuaire.univ-grenoble-alpes.fr/pages_personnelles/jocelyn_etienne/papers.html#Jallon+Etienne.2025.1)

#cytoskeleton #cell #tissue #morphogenesis #activeMatter #livingMatter

Our article on the #mechanics of "active" entropic biopolymer networks [possibly including #actomyosin, this is debated experimentally] is now published in J Elas.

Compared to enthalpic models, we're able to go right from the #thermodynamics of an unbiased #molecularMotor activity (in the spirit of the model by #JacquesProst for #myosin) at the molecular scale to a network-scale model in a closed form.

And we derive a method for solving quite easily the (usually tough) #viscoelastic #liquid model that we obtain, using #deformationGradientDecomposition.

https://doi.org/10.1007/s10659-024-10102-8
(I share a paywall-free link to my followers below, but it's also on arXiv: https://arxiv.org/abs/2405.07287 and on my webpage https://liphy-annuaire.univ-grenoble-alpes.fr/pages_personnelles/jocelyn_etienne/papers.html#Jallon+Etienne.2025.1)

#cytoskeleton #cell #tissue #morphogenesis #activeMatter #livingMatter

Our article on the #mechanics of "active" entropic biopolymer networks [possibly including #actomyosin, this is debated experimentally] is now published in J Elas.

Compared to enthalpic models, we're able to go right from the #thermodynamics of an unbiased #molecularMotor activity (in the spirit of the model by #JacquesProst for #myosin) at the molecular scale to a network-scale model in a closed form.

And we derive a method for solving quite easily the (usually tough) #viscoelastic #liquid model that we obtain, using #deformationGradientDecomposition.

https://doi.org/10.1007/s10659-024-10102-8
(I share a paywall-free link to my followers below, but it's also on arXiv: https://arxiv.org/abs/2405.07287 and on my webpage https://liphy-annuaire.univ-grenoble-alpes.fr/pages_personnelles/jocelyn_etienne/papers.html#Jallon+Etienne.2025.1)

#cytoskeleton #cell #tissue #morphogenesis #activeMatter #livingMatter

Our article on the #mechanics of "active" entropic biopolymer networks [possibly including #actomyosin, this is debated experimentally] is now published in J Elas.

Compared to enthalpic models, we're able to go right from the #thermodynamics of an unbiased #molecularMotor activity (in the spirit of the model by #JacquesProst for #myosin) at the molecular scale to a network-scale model in a closed form.

And we derive a method for solving quite easily the (usually tough) #viscoelastic #liquid model that we obtain, using #deformationGradientDecomposition.

https://doi.org/10.1007/s10659-024-10102-8
(I share a paywall-free link to my followers below, but it's also on arXiv: https://arxiv.org/abs/2405.07287 and on my webpage https://liphy-annuaire.univ-grenoble-alpes.fr/pages_personnelles/jocelyn_etienne/papers.html#Jallon+Etienne.2025.1)

#cytoskeleton #cell #tissue #morphogenesis #activeMatter #livingMatter

Our article on the #mechanics of "active" entropic biopolymer networks [possibly including #actomyosin, this is debated experimentally] is now published in J Elas.

Compared to enthalpic models, we're able to go right from the #thermodynamics of an unbiased #molecularMotor activity (in the spirit of the model by #JacquesProst for #myosin) at the molecular scale to a network-scale model in a closed form.

And we derive a method for solving quite easily the (usually tough) #viscoelastic #liquid model that we obtain, using #deformationGradientDecomposition.

https://doi.org/10.1007/s10659-024-10102-8
(I share a paywall-free link to my followers below, but it's also on arXiv: https://arxiv.org/abs/2405.07287 and on my webpage https://liphy-annuaire.univ-grenoble-alpes.fr/pages_personnelles/jocelyn_etienne/papers.html#Jallon+Etienne.2025.1)

#cytoskeleton #cell #tissue #morphogenesis #activeMatter #livingMatter

📰 "Myosin-dependent short actin filaments contribute to peripheral widening in developing stereocilia"
https://doi.org/doi:10.21203/rs.3.rs-5448262/v1
https://pubmed.ncbi.nlm.nih.gov/39678325/
#Mechanical #Myosin #Actin

Slightly belated notification, but it's out! Hopefully not the last paper I publish (there's 1 more to go), but it's one of the last - a characterisation of the class I and class XXI #myosin #motor_proteins and #actin in the #parasite #Tbrucei. Fab collaboration of the Morriswood group with Fabian Link (Engstler group) and Claudia Veigel of #LMU. Really pleased at the blend of #fluorescence #microscopy, #electron microscopy, and #biochemistry. 👇
https://elifesciences.org/articles/96953

Our #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure from the thermodynamic constraints on the dynamics of #myosin molecular motors is now updated!

Hopefully more readable, and with the example of a #cyst like contractile sphere.

#cytoskeleton #rheology #activeMatter #softMatter #actomyosin

Our #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure from the thermodynamic constraints on the dynamics of #myosin molecular motors is now updated!

Hopefully more readable, and with the example of a #cyst like contractile sphere.

#cytoskeleton #rheology #activeMatter #softMatter #actomyosin

Our #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure from the thermodynamic constraints on the dynamics of #myosin molecular motors is now updated!

Hopefully more readable, and with the example of a #cyst like contractile sphere.

#cytoskeleton #rheology #activeMatter #softMatter #actomyosin

Our #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure from the thermodynamic constraints on the dynamics of #myosin molecular motors is now updated!

Hopefully more readable, and with the example of a #cyst like contractile sphere.

#cytoskeleton #rheology #activeMatter #softMatter #actomyosin

Our #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure from the thermodynamic constraints on the dynamics of #myosin molecular motors is now updated!

Hopefully more readable, and with the example of a #cyst like contractile sphere.

#cytoskeleton #rheology #activeMatter #softMatter #actomyosin

Single-celled eukaryote employs unconventional cytoskeletal components for dynamic shape-shifting https://phys.org/news/2024-10-celled-eukaryote-employs-unconventional-cytoskeletal.html

Dynamic shape-shifting of the single-celled eukaryotic predator Lacrymaria via unconventional cytoskeletal components https://www.cell.com/current-biology/abstract/S0960-9822(24)01214-4

"the remarkable morphological change in #Lacrymaria involves a unique #actin-#myosin system rather than the Ca2+-dependent system found in other contractile #ciliates."

#protists #microbes

@mechanobio

A new #preprint where we derive an #activeGel #model with entropic elasticity of the #microstructure and give interpretations of the thermodynamic constraints on the dynamics of #myosin molecular motors.

#cytoskeleton #rheology #activeMatter #softMatter

@preLights Interesting. It'd be worth investigating what level of phenomenology we put under the word "(ir)reversible" in this context.

We'd come with a variant for that together with Matteo Rauzi: erasing #Myosin accumulation cancels the furrowing, and as Myosin reaccumulates it starts over.

#Drosophila #morphogenesis #biomechanics #gastrulation

Are you interested in the #cytoskeleton ...?

#actin, #actomyosin, #myosin, #microtubule, #kinesin, #intermediatefilament, #vimentin, #keratin, #desmin, #GFAP, #peripherin, #syncoilin, #internexin, #neurofilament, #synemin, #syncoilin, #lamin

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Unfortunately, if you search / follow one of these hashtags, most of the posts from this bot will be invisible because a recent policy makes them "unlisted", see https://botsin.space/@muffinista/110378654504428500

#ScienceMastodon

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📰 "Geometric control of Myosin-II orientation during axis elongation"
by 🔬 Matthew F Lefebvre, Nikolas H Claussen, Noah P Mitchell, Hannah J Gustafson, Sebastian J Streichan
https://pubmed.ncbi.nlm.nih.gov/36715100/ #Morphogenesis #Actomyosin #Myosin

New bot! @Rxiv_cytoskeleton will toot all papers & preprints about the #cytoskeleton.
Namely, any match with "#actin, #actomyosin, #myosin, #microtubule, #kinesin, #intermediatefilament, #vimentin, #keratin, #desmin, #GFAP, #peripherin, #syncoilin, #internexin, #neurofilament, #synemin, #syncoilin, #lamin" in abstracts from #bioRxiv, #arXiv and #PubMed will be posted with #tags to tell you what's in there.
#biology #biophysics #science #ScienceMastodon #feed2toot @bioRxiv_biophys