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Cellular microtransport processes: intercellular, intracellular, and aggregate behavior.

J M Nitsche1

  • 1Department of Chemical Engineering, State University of New York at Buffalo, Buffalo, New York 14260-4200, USA. nitsche@eng.buffalo.edu

Annual Review of Biomedical Engineering
|November 10, 2001
PubMed
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Cellular transport involves molecular and ionic movement across membranes and within cytoplasm. This study explores mechanisms, experimental methods, and scaling from cellular to tissue-level transport.

Area of Science:

  • Biophysics
  • Cell Biology
  • Physiology

Background:

  • Cellular transport is crucial for physiological functions, involving movement at various scales.
  • Membrane permeability and conductance rely on channel proteins at the molecular level.
  • Intracellular transport dynamics occur within the complex cytoplasmic ultrastructure.

Purpose of the Study:

  • To review mechanisms of intercellular and intracellular transport.
  • To highlight experimental techniques for probing cellular permeability.
  • To examine the scaling of transport phenomena from molecular to tissue levels.

Main Methods:

  • Review of mechanistic theories for transport processes.
  • Discussion of experimental probes for cellular permeability.

Related Experiment Videos

  • Analysis of multi-scale transport phenomena.

    • Main Results:

    • Cell membrane properties are determined by channel proteins.
    • Cytoplasmic complexity influences intracellular transport dynamics.
    • Collective cell behavior emerges from individual transport processes.

    Conclusions:

    • Understanding transport across scales is key to comprehending tissue function.
    • Mechanistic theory and experimental validation are essential for studying transport.
    • Bridging small-scale molecular events to large-scale tissue behavior is a central challenge.