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arxiv: 2602.09867 · v3 · submitted 2026-02-10 · 🧬 q-bio.TO · cond-mat.soft· cond-mat.stat-mech

A dialog between cell adhesion and topology at the core of morphogenesis

Adrian Aguirre-Tamaral , Elisa Floris , Bernat Corominas-Murtra This is my paper

Pith reviewed 2026-05-16 06:15 UTC · model grok-4.3

classification 🧬 q-bio.TO cond-mat.softcond-mat.stat-mech
keywords cell adhesiontissue topologymorphogenesisembryonic developmentcell-cell contactstissue geometrymaterial propertiestissue mechanics
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The pith

Cell adhesion changes at local contacts drive global shifts in embryonic tissue topology and mechanics.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

This review shows that adjustments in cell adhesion, occurring only between pairs of neighboring cells, produce widespread effects on how embryonic tissues are arranged and how they behave mechanically. The authors connect these local molecular interactions to tissue-wide features such as cell packing patterns, curvature, and stiffness. A sympathetic reader would see this as evidence that adhesion acts as a control point for the precise shapes and properties that arise during early development. Because morphogenesis requires coordinated physical deformations, clarifying this link helps explain how tissues achieve their final forms. The argument rests on recent experimental studies that track adhesion changes alongside observable changes in tissue geometry and material response.

Core claim

The paper claims that fine-tuned changes in cell adhesion, defined as a local pairwise property at cell-cell contacts, carry important global consequences for embryonic tissue topology. These local alterations determine both the geometric arrangement of cells and the material properties of the tissue, such as its ability to deform and maintain structure during morphogenesis.

What carries the argument

The dialog between local cell adhesion and tissue topology, in which pairwise adhesion adjustments propagate to set global cell connectivity, packing geometry, and mechanical behavior.

If this is right

  • Adhesion modulation at contacts can dictate cell packing patterns and overall tissue curvature.
  • These adhesion-driven topology changes alter tissue stiffness and deformation behavior.
  • The mechanism links molecular contact properties directly to tissue-scale patterning during organ formation.
  • Disruptions in adhesion are expected to produce predictable defects in both geometry and mechanics.
  • The same local-to-global mapping applies across different early embryonic stages.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Engineering adhesion strength could offer a direct route to control tissue shape in organoid or regenerative settings.
  • The adhesion-topology link may integrate with other morphogenetic drivers, forming a combined regulatory network rather than independent modules.
  • Comparative studies across species could test whether the same adhesion-topology rules are conserved in different developmental contexts.

Load-bearing premise

The reviewed studies isolate adhesion changes as the main cause of topology shifts without major interference from simultaneous processes such as cell division, migration, or cortical tension.

What would settle it

Direct observation that targeted adhesion perturbations leave tissue topology and geometry unchanged in an embryo where division, migration, and tension are held constant.

Figures

Figures reproduced from arXiv: 2602.09867 by Adrian Aguirre-Tamaral, Bernat Corominas-Murtra, Elisa Floris.

Figure 1
Figure 1. Figure 1: FIG. 1: Different packings of spheres, that could represent cells in contact, with their geometry (top) and their associated [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: FIG. 2: Cell adhesion between cells. A) View of cell ad [PITH_FULL_IMAGE:figures/full_fig_p004_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: FIG. 3: Biological implications of topological transitions. A) Temporal evolution of the relative surface tension [PITH_FULL_IMAGE:figures/full_fig_p005_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: FIG. 4: Tissue properties driven by cell adhesion. A) Phase transition showing the emergence of the GRC as a function of the [PITH_FULL_IMAGE:figures/full_fig_p006_4.png] view at source ↗
read the original abstract

During the development of an organism, cells must coordinate and organize to generate the correct shape, structure, and spatial patterns of tissues and organs, a process known as morphogenesis. The morphogenesis of embryonic tissues is supported by multiple processes that induce the precise physical deformations required for tissues to ultimately form organs with complex geometries. Among the most active players shaping the morphogenetic path are fine-tuned changes in cell adhesion. We review here recent advances showing that changes on cell adhesion, a local, pair-wise property defined at the cell-cell contact level has important global consequences for embryonic tissue topology, being determinant in defining both the geometric and material properties of early embryo tissues.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 1 minor

Summary. The manuscript is a review arguing that local, pairwise changes in cell adhesion at cell-cell contacts exert important global effects on embryonic tissue topology, thereby determining both the geometric shapes and material properties of early embryo tissues during morphogenesis.

Significance. If the synthesis is accurate, the work usefully connects molecular-scale adhesion dynamics to emergent tissue-scale topology and mechanics, providing a conceptual framework that could guide targeted perturbations and modeling in developmental biology.

major comments (1)
  1. [Abstract] Abstract and central narrative: the assertion that adhesion changes are 'determinant' for topology and material properties is load-bearing, yet the review does not explicitly evaluate whether the cited studies isolate adhesion from concurrent mechanochemical processes (cortical contractility, proliferation, or migration). Without such discussion or quantitative decomposition, the evidence remains compatible with correlation rather than isolated causation.
minor comments (1)
  1. [Abstract] The abstract is dense; breaking the final sentence into two would improve readability.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for their constructive review and for highlighting the need to strengthen the discussion of causation versus correlation. We agree that the central claim requires careful qualification and have revised the manuscript accordingly to address this point explicitly.

read point-by-point responses

  1. Referee: [Abstract] Abstract and central narrative: the assertion that adhesion changes are 'determinant' for topology and material properties is load-bearing, yet the review does not explicitly evaluate whether the cited studies isolate adhesion from concurrent mechanochemical processes (cortical contractility, proliferation, or migration). Without such discussion or quantitative decomposition, the evidence remains compatible with correlation rather than isolated causation.

    Authors: We agree that the manuscript would benefit from a more explicit treatment of this limitation. In the revised version we have added a dedicated paragraph (new Section 2.3) that discusses the experimental challenges of isolating adhesion changes from concurrent processes such as cortical contractility and cell proliferation. We note that many of the cited studies rely on targeted genetic or pharmacological perturbations of adhesion molecules (e.g., cadherin mutants or blocking antibodies) that produce clear topological and mechanical phenotypes, yet we acknowledge that feedback loops prevent complete isolation. We have also tempered the abstract language from “determinant” to “play a central, often decisive role” to reflect the correlative-causal nuance while preserving the review’s synthesis. A quantitative decomposition of all cited datasets is beyond the scope of this review, but the added discussion clarifies the evidential basis. revision: yes

Circularity Check

0 steps flagged

Review paper with no internal circular derivations or self-referential reductions

full rationale

This is a review summarizing external literature on cell adhesion changes and their effects on embryonic tissue topology. The abstract and structure present no original derivations, equations, parameter fits, or predictions that could reduce to the paper's own inputs by construction. Claims rest on cited studies rather than internal logic loops. No self-citation chains are load-bearing for core assertions, and the paper does not rename known results or smuggle ansatzes via prior author work. The derivation chain is self-contained via external benchmarks.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

As a review assessed from the abstract only, the ledger captures the core domain assumption that cell adhesion acts as a local pairwise property with global topological effects. No free parameters or invented entities are introduced in the provided summary.

axioms (1)
  • domain assumption Cell adhesion is a local, pair-wise property defined at the cell-cell contact level.
    Explicitly stated in the abstract as the starting point for global consequences on tissue topology.

pith-pipeline@v0.9.0 · 5416 in / 1062 out tokens · 47431 ms · 2026-05-16T06:15:29.396704+00:00 · methodology

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Reference graph

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