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Molecular motors hijacking by intracellular pathogens

Thomas Henry1, Jean-Pierre Gorvel, Stéphane Méresse

  • 1Centre d'Immunologie de Marseille-Luminy, CNRS-INSERM-Université Méditerranée, Parc Scientifique de Luminy, Case 906-13288 Marseille Cedex 9, France.

Cellular Microbiology
|December 22, 2005
PubMed

Insights

Molecular motor proteins like kinesins, dyneins, and myosins drive intracellular transport along actin and tubulin tracks. This essential cellular machinery is also exploited by pathogens for replication and host manipulation.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biophysics

Background:

  • Intracellular transport relies on cytoskeletal networks (actin and tubulin) and molecular motor proteins.
  • Kinesins, dyneins, and myosins are key motor proteins facilitating diverse cellular processes.
  • These motors are crucial for organelle positioning, mitosis, and vesicular transport.

Purpose of the Study:

  • To elucidate the fundamental mechanisms of intracellular cargo transport.
  • To highlight the diverse roles of molecular motors in cellular functions.
  • To explore how intracellular pathogens hijack cellular transport machinery.

Main Methods:

  • Analysis of cytoskeletal dynamics and motor protein activity.
  • Microscopy techniques to visualize intracellular transport.
  • Biochemical assays to study motor protein function.

Main Results:

  • Molecular motors generate directed movement along actin and tubulin filaments.
  • These motors mediate essential processes including mitosis and organelle transport.
  • Pathogens utilize these motors for replication and host cell interaction.

Conclusions:

  • Molecular motors are indispensable for intracellular transport and cellular organization.
  • Pathogen manipulation of motor proteins impacts host cell dynamics.
  • Understanding these transport systems offers insights into both normal cell function and disease.

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