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Related Experiment Video

Updated: Jun 20, 2026

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Mice lacking Plexin-B3 display normal CNS morphology and behaviour.

Thomas Worzfeld1, Philipp Rauch, Khalad Karram

  • 1Institute of Pharmacology, Im Neuenheimer Feld 366, University of Heidelberg, 69120 Heidelberg, Germany. thomas.worzfeld@mpi-bn.mpg.de

Molecular and Cellular Neurosciences
|August 25, 2009
PubMed
Summary
This summary is machine-generated.

Plexin-B3, a protein in the central nervous system, is not essential for development or function. Knock-out mice lacking Plexin-B3 showed no defects in structure or behavior, indicating no vital role under normal conditions.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Developmental Biology

Background:

  • Semaphorins and plexins regulate biological processes.
  • Plexin-B3 is expressed in postnatal oligodendrocytes.
  • The in vivo function of Plexin-B3 in the central nervous system is unknown.

Purpose of the Study:

  • To elucidate the functional significance of Plexin-B3 in vivo.
  • To generate and analyze constitutive knock-out mice for Plexin-B3.

Main Methods:

  • Generation and analysis of Plexin-B3-deficient mice.
  • Systematic histological examination of brain and spinal cord.
  • Comprehensive behavioral analyses (locomotor activity, motor coordination, learning, anxiety).

Main Results:

  • Plexin-B3-deficient mice were viable and fertile.
  • No morphological defects were observed in the central nervous system.
  • Behavioral analyses revealed no differences compared to wild-type controls.

Conclusions:

  • Plexin-B3 is not essential for the development of the central nervous system.
  • Plexin-B3 does not play a critical role in the function of the central nervous system under physiological conditions.