Myelin-specific proteolipid protein is expressed in myelinating Schwann cells but is not incorporated into myelin sheaths.

Abstract:

:Contrary to widely held beliefs, the gene encoding proteolipid protein (PLP), the major structural protein of central nervous system myelin, is expressed in Schwann cells and their tumors. Proteolipid mRNA was identified in human acoustic neuromas and in rat and rabbit sciatic nerves using a human PLP cDNA as a probe. Proteolipid protein itself was shown to be present in human and rat sciatic nerve Schwann cells by immunofluorescence microscopy and by Western blot analysis using antisera raised to a synthetic PLP polypeptide. Although easily detected in the Schwann cell body, PLP was not detected in the peripheral myelin itself, suggesting that the PLP is preferentially excluded from this portion of the Schwann cell membrane.

journal_name

J Neurosci Res

authors

Puckett C,Hudson L,Ono K,Friedrich V,Benecke J,Dubois-Dalcq M,Lazzarini RA

doi

10.1002/jnr.490180402

subject

Has Abstract

pub_date

1987-01-01 00:00:00

pages

511-8

issue

4

eissn

0360-4012

issn

1097-4547

journal_volume

18

pub_type

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