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Related Experiment Videos

Localization of transferrin within the developing vertebrate nervous system.

G J Markelonis1, T H Oh, T L Dion

  • 1Department of Anatomy, University of Maryland School of Medicine, Baltimore 21201.

Revue Neurologique
|January 1, 1988
PubMed
Summary

Transferrin is transiently expressed in developing neurons, preceding oxidative metabolism and potentially influencing dopamine receptor expression and cell death. This protein

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Biochemistry

Background:

  • Transferrin is a serum protein found in the developing nervous system.
  • Transferrin receptor expression precedes transferrin accumulation in neurons.

Purpose of the Study:

  • To investigate the temporal expression pattern of transferrin in the developing nervous system.
  • To explore the relationship between transferrin accumulation and neuronal development, including oxidative metabolism and cell death.

Main Methods:

  • Immunohistochemistry to detect transferrin and antitransferrin antibodies in rat nervous system.
  • Assay for mitochondrial malate dehydrogenase activity.

Main Results:

  • Transferrin immunoreactivity appears transiently in neurons, originating near ventricles and migrating outwards.

Related Experiment Videos

  • Neuronal transferrin levels peak and then decline, coinciding with increased mitochondrial malate dehydrogenase.
  • Glia and capillary walls become positive for transferrin as neuronal expression wanes.

    • Conclusions:

    • Transferrin's transient expression in neurons is closely linked to the development of oxidative metabolism in the brain.
    • Transferrin may play a role in other developmental processes, including dopamine D2 receptor expression and programmed cell death.