The reeler gene-associated antigen on Cajal-Retzius neurons is a crucial molecule for laminar organization of cortical neurons

Neuron. 1995 May;14(5):899-912. doi: 10.1016/0896-6273(95)90329-1.

Abstract

In the neurological mutant mouse reeler, the histological organization of the neocortex develops abnormally and essentially results in an inversion of the relative positions of the cortical layers. The reeler mutation, therefore, provides an insight into the molecular mechanisms underlying the formation of the cortical layers. We have generated a monoclonal antibody (CR-50) that probes a distinct allelic antigen present in wild-type but not in reeler mutant mice. CR-50 reacted specifically with Cajal-Retzius neurons, one of the first cortical neurons to differentiate in the neocortex, but whose functional role is not known. When dissociated cerebral cortical cells were incubated with CR-50 in reaggregation culture, the genotype-dependent histogenetic assembly of wild-type cortical cells resembled that of reeler mutants. These findings revealed that the selective expression of a distinct molecule on Cajal-Retzius neurons is critical for the normal lamination of cortical neurons in the mammalian neocortex.

MeSH terms

  • Animals
  • Antibodies, Monoclonal
  • Cell Adhesion
  • Cell Adhesion Molecules, Neuronal / analysis*
  • Cell Communication
  • Cerebral Cortex / cytology*
  • Extracellular Matrix Proteins / analysis*
  • Extracellular Space / metabolism
  • Hybridomas / immunology
  • Immunohistochemistry
  • Mice
  • Mice, Neurologic Mutants
  • Mutation*
  • Nerve Tissue Proteins / analysis*
  • Neurons / chemistry
  • Neurons / cytology*
  • Serine Endopeptidases
  • Tissue Distribution

Substances

  • Antibodies, Monoclonal
  • Cell Adhesion Molecules, Neuronal
  • Extracellular Matrix Proteins
  • Nerve Tissue Proteins
  • Serine Endopeptidases
  • reelin protein