#actomyosin — Public Fediverse posts

📰 "Self-organizing physical and biochemical interactions explain diverse behaviours in Physarum polycephalum"
https://www.biorxiv.org/content/10.64898/2026.05.07.723662v1?rss=1 #Actomyosin #Pressure

📰 "Self-organizing physical and biochemical interactions explain diverse behaviours in Physarum polycephalum"
https://www.biorxiv.org/content/10.64898/2026.05.07.723662v1?rss=1 #Actomyosin #Pressure

📰 "Beyond biochemical patterning: How mechanical bistability governs robust organoid morphogenesis"
https://doi.org/doi:10.1016/j.mbm.2025.100134
https://pubmed.ncbi.nlm.nih.gov/40519214/
#Morphogenesis #Mechanical #Actomyosin

📰 "Reconstitution of actomyosin networks in cell-sized liposomes reveals distinct mechanical roles of cytoskeletal organization in membrane shape remodeling"
https://doi.org/doi:10.1101/2025.05.18.654456
https://pubmed.ncbi.nlm.nih.gov/40475593/
#Actomyosin #Mechanical #Forces #Actin

📰 "Age-associated Tissue Organisation Shifts Retinal Pigment Epithelium Actomyosin Plasticity in Phagocytosis"
https://www.biorxiv.org/content/10.1101/2025.05.22.655517v1?rss=1 #Extracellular #Actomyosin #Mechanical

📰 "Active waves from non-reciprocity and cytoplasmic exchange"
https://arxiv.org/abs/2505.09740 #Physics.Flu-Dyn #Physics.Bio-Ph #Actomyosin #Mechanical #Nlin.Ps

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 #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

#Optogenetic manipulation of focal adhesion targeting shows that local #actomyosin traction force development induces focal #adhesion sliding and disassembly

Julien Aureille, Alexander Bershadsky et al

https://www.embopress.org/doi/full/10.1038/s44318-024-00114-4

Are you interested in the #cytoskeleton ...?

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

are hashtags used by @Rxiv_cytoskeleton bot.

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

1/2

From their abstract:
"Emerging evidence suggests that understanding of #timescales may be important in resolving this issue, but that further work is needed to understand the role of adhesive strengthening across scales."

Same the conclusion as in our theory paper https://doi.org/10.1371/journal.pcbi.1009812 : the interplay of #cadherin #adhesion & cortical #actomyosin timescales triggers emergent phenomena in terms of #tissue mechanics. If one adds #mechanotransduction on top of that then expect awesome effects.

I've talked a lot as a member of the scientific community at #ScienceMastodon, now my #introduction as a researcher... with a separate account for that.

My aim is to understand how living #cells and #tissues can actively change shape through the generation of internal #prestress within the #cytoskeleton.

For this, I devise #mechanical #models of the #actomyosin (a component of the cell's skeleton which can bear forces and generate #prestress) and then solve them, mostly by #numericalsimulation

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