Now published... and on the #BiophysJ cover!

Cell Adhesion Pattern Shows Conserved #Scalings under #Geometrical Control

Studying the relationship between the size and the #anatomy and #physiology of #living #organisms has proven useful in deciphering what the key physical constraints are that apply to them. For instance, total adhesive pad area is found to #scale like organism mass over a wide variety of animal species, possibly to resist against body weight.

In this study, we apply this approach at the cell scale to ask how large-scale geometrical constraints affect the organisation of #adhesion patches and the size of #cellSubstrate contact at different stages of the #cellSpreading process. Indeed, #cells, like many animals, adhere to their substrate. For that, they use specific protein complexes, called #focalAdhesions, which form patches often situated at the cell periphery.

cc @JonFouchard

https://www.biophysics.org/blog/cell-adhesion-pattern-shows-conserved-scalings-under-geometrical-control

#cellAdhesion #biophysics #allometry

How do integrins and paxillin interact at #FocalAdhesions? This study presents a 3D structure of the LIM3 domain of #paxillin, revealing a direct association between paxillin and the cytoplasmic tail of the #integrin beta subunit #PLOSBiology https://plos.io/3TrtFUw
A flexible loop in the paxillin LIM3 domain mediates its direct binding to integrin β subunits

How do integrins and paxillin interact at focal adhesions? Here, the authors present a 3D-structure of the LIM3 domain of paxillin which reveals a direct association between paxillin and the cytoplasmic tail of the integrin beta subunit.

ITIH5 as a multifaceted player in pancreatic cancer suppression, impairing tyrosine kinase signaling, cell adhesion and migration. https://doi.org/10.1002/1878-0261.13609 #C2tsg #FocalAdhesions #Itih5 #MetastasisSuppressor #PancreaticCancer

Focal adhesions (FAs) connect the intracellular #cytoskeleton to the #ECM. Karin Legerstee et al. use correlative light and electron #microscopy to reveal novel fork-shaped structures at #actin entry sites of FAs:

https://journals.biologists.com/bio/article/11/11/bio059417/283176

#FocalAdhesions #CellScience #Imaging #Fluorescence #ElectronMicroscopy #CLEM #Science #Biology #AcademicMastodon

Correlative light and electron microscopy reveals fork-shaped structures at actin entry sites of focal adhesions

Summary: We reveal and quantitatively assess a novel fork structure in focal adhesions using correlative fluorescence and electron microscopy

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