Expression of a cell death marker (clusterin) in muscle target fibers

We report, for the first time, the expression of immunoractivity to clusterin in skeletal muscle. Clusterin, a protein probably related to the process of programmed cell death (apoptosis), was specifically very highly expressed in target fibers. All target fibers found in 50 muscle biopsy samples fr...

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Bibliographic Details
Main Authors: Acary Souza Bulle Oliveira, Massimo Corbo, Greg Duigou, Alberto Alain Gabbai, Arthur P. Hays
Format: Article
Language:English
Published: Thieme Revinter Publicações 1993-09-01
Series:Arquivos de Neuro-Psiquiatria
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1993000300014&lng=en&tlng=en
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Summary:We report, for the first time, the expression of immunoractivity to clusterin in skeletal muscle. Clusterin, a protein probably related to the process of programmed cell death (apoptosis), was specifically very highly expressed in target fibers. All target fibers found in 50 muscle biopsy samples from a variety of neuromuscular disorders expressed a high concentration of clusterin in the middle of the targets. Clusterin was not expressed in any targetoid fibers or cores. Acute denervation, where targets are mostly seen, may be the beginning of apoptosis. Hence our findings support the concept that targets are harbingers of acute denervation.
ISSN:1678-4227