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Heat shock protein expression in corpora amylacea in the central nervous system: clues to their origin
Author(s) -
MARTIN J. E.,
MATHER K.,
SWASH M.,
GAROFALO O.,
LEIGH P. N.,
ANDERTON B. H.
Publication year - 1991
Publication title -
neuropathology and applied neurobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.538
H-Index - 95
eISSN - 1365-2990
pISSN - 0305-1846
DOI - 10.1111/j.1365-2990.1991.tb00702.x
Subject(s) - pathology , heat shock protein , spinal cord , hyaline , biology , central nervous system , nervous system , shock (circulatory) , anatomy , stain , neuroscience , staining , medicine , biochemistry , gene
Small bodies expressing epitopes of the 72 kD heat shock protein (HSP) have been identified in the brain and spinal cord in normal and neurologically abnormal individuals. These bodies resemble the ‘pre‐corpora amylacea’ (pre‐CA), thought to be the primary structure in the development of the mature body. Corpora amylacea are laminated hyaline bodies composed of polyglucosans. They are found in larger numbers with increasing age in the brain and spinal cord. Mature, histologically ‘classical’, corpora amylacea express epitopes of HSP chiefly at the periphery of the corpus, whilst smaller immature ‘pre‐corpora’ stain intensely throughout the entire structure. A heat shock or stress response in neurons and glial cells may be part of the cellular reaction to accumulation of abnormal products.