Binding constants of soluble NGF-receptors in rat oligodendrocytes and astrocytes in culture

Dario Marchetti, Robert W. Stach, Russell Saneto, Jean de Vellis, J. Regino Perez-Polo

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The neuronotrophic factor NGF binds to peripheral neurons of the dorsal root ganglion and the sympathetic nervous system. NGF binds to a cell surface receptor, NGFR, on these cells and displays Kd's of 10-9 and 10-11M. NGF receptors have also been reported for basal forebrain magnocellular neurons. In addition, NGF specifically binds to NGFR on Schwann cells although the biological significance of this binding is not known. Here we report that NGF binds in a saturable and specific fashion to receptors on cultured isolated populations of rat astrocytes but not to oligodendrocytes. The binding to astrocytes in culture displayed a Kd of 2.7 ± 1.0 nM with 36,000 receptors per cell.

Original languageEnglish (US)
Pages (from-to)422-427
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume147
Issue number1
DOIs
StatePublished - Aug 31 1987

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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