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Competing signaling pathways controls electrotaxis.

S Kulkarni1, F Tebar2,3, C Rentero2,3

  • 1Laboratori de Càlcul Numèric (LaCàN), ETS de Ingeniería de Caminos, Canales y Puertos, Universitat Politècnica de Catalunya, Barcelona, Spain.

Iscience
|April 28, 2025
PubMed
Summary
This summary is machine-generated.

This study presents a model explaining how cells migrate in response to electric fields (electrotaxis). It identifies key membrane proteins that direct cell movement, offering potential for tissue regeneration and cancer therapy.

Keywords:
BiophysicsCell biologyMechanobiology

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Area of Science:

  • Cell biology
  • Bioengineering
  • Biophysics

Background:

  • Cell migration is crucial for biological processes, and electric fields offer precise control.
  • Electrotaxis, or cell migration in response to electric fields, is primarily linked to membrane protein polarization and downstream signaling.
  • The coordination between these signaling mechanisms and the cell's motility machinery remains unclear.

Purpose of the Study:

  • To develop a mechanistic model explaining electrotaxis across diverse cell types.
  • To identify specific membrane proteins involved in electrotaxis using the zebrafish proteome.
  • To elucidate how the distribution of these proteins directs cell migration.

Main Methods:

  • Developed a mechanistic model for electrotaxis.
  • Analyzed the zebrafish proteome to identify relevant membrane proteins.
  • Investigated protein polarization (anodal and cathodal) and distribution.
  • Utilized electric fields to manipulate cell migration.

Main Results:

  • Identified membrane proteins in signaling pathways that polarize anodally and cathodally.
  • Demonstrated that asymmetric distribution of these receptors creates cooperative and competing stimuli.
  • Showed that electric fields can enhance, cancel, or switch directed cell migration.

Conclusions:

  • The model provides a framework for understanding electrotaxis.
  • Simultaneous and asymmetric distribution of membrane receptors is key to directed cell movement.
  • Precise control of electrotaxis has implications for tissue regeneration and tumor progression.