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Mechanical regulation of lymphocyte activation and function.

Aashli Pathni1, Kaustubh Wagh2,3, Ivan Rey-Suarez4,5

  • 1Biological Sciences Graduate Program, University of Maryland, College Park, MD 20742, USA.

Journal of Cell Science
|July 12, 2024
PubMed
Summary

Cells sense physical forces through mechanosensing, impacting everything from development to immunity. This review explores how mechanical cues regulate immune cell function, particularly lymphocytes, and the underlying cytoskeletal mechanisms.

Keywords:
B lymphocytesCytoskeletal forcesMechanoimmunologyMechanosensingSignalingT lymphocytes

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Area of Science:

  • Biophysics
  • Cell Biology
  • Immunology

Background:

  • Mechanosensing, the cellular response to physical stimuli, is vital for biological processes like development, cancer metastasis, and immune responses.
  • Physical cues include extracellular matrix stiffness, contractile forces, shear flow, microenvironment topography, and membrane protein mobility.
  • While studied in non-immune cells, physical cues increasingly impact immune cell signaling, especially lymphocytes.

Purpose of the Study:

  • To review recent research on the mechanical regulation of immune cells, focusing on lymphocytes.
  • To explore the role of cytoskeletal machinery in mediating immune cell mechanosensing.
  • To discuss principles of mechanical regulation in lymphocyte function, from molecular to cellular levels.

Main Methods:

  • Literature review of recent studies on immune cell mechanosensing.
  • Analysis of cytoskeletal mechanisms involved in force generation and mechanotransduction.
  • Synthesis of principles governing mechanical regulation of lymphocyte signaling.

Main Results:

  • Physical forces significantly influence lymphocyte signaling and function.
  • The cytoskeleton plays a critical role in immune cell mechanosensing.
  • Mechanosensing in lymphocytes operates across molecular and cellular scales.

Conclusions:

  • Understanding mechanosensing in lymphocytes is crucial for comprehending immune responses.
  • Cytoskeletal dynamics are key mediators of how lymphocytes perceive and react to their physical environment.
  • Further research into mechanical regulation can reveal new therapeutic targets for immune-related diseases.