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Macro, micro and nano domains in the membrane of parasitic protozoa

Wanderley de Souza1

  • 1Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21941-900, Rio de Janeiro, RJ, Brazil. wsouza@biof.ufrj.br

Parasitology International
|March 10, 2007
PubMed

Insights

Eukaryotic cell plasma membranes feature specialized microdomains. This review examines their presence in parasitic protozoa, focusing on identification via morphological methods like freeze-fracture techniques.

Area of Science:

  • Cell Biology
  • Parasitology
  • Biochemistry

Background:

  • The plasma membrane's structure involves proteins, lipids, and microdomains.
  • Lipid rafts and detergent-resistant membranes are key concepts in membrane organization.

Purpose of the Study:

  • To review the structural organization of eukaryotic cell plasma membranes.
  • To examine biochemical data on microdomains in parasitic protozoa.
  • To highlight morphological identification of special membrane domains.

Main Methods:

  • Review of existing biochemical data.
  • Morphological approaches, particularly freeze-fracture electron microscopy.

Main Results:

  • Eukaryotic cells possess complex plasma membrane structures including microdomains.
  • Evidence suggests the presence of distinct microdomains in parasitic protozoa.
  • Freeze-fracture techniques are effective for visualizing these specialized domains.

Conclusions:

  • Plasma membrane microdomains are crucial for eukaryotic cell function.
  • Parasitic protozoa likely exhibit unique membrane domain organizations.
  • Morphological studies, especially freeze-fracture, are vital for understanding these domains in parasites.

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