Alzheimer neurofibrillary tangles: antiserum and immunohistological staining.

Abstract:

:A 50,000-dalton polypeptide has been purified from fractions enriched with neurofibrillary tangles of paired helical filaments from human autopsy specimens of Alzheimer disease and senile dementia of the Alzheimer type. An antiserum to this polypeptide was raised in a rabbit. This antiserum formed an immunoprecipitation line with the purified antigen and with human neurotubules in ouchterlony double-diffusion plates. The reactivity of the anti-paired helical filament protein serum with neurofibrillary tangles was studied by immunofluorescence on cryostat sections of hippocampus from Alzheimer autopsy tissue and by the peroxidase-antiperoxidase technique on paraffin sections of an Alzheimer brain biopsy. The tangles were stained with the antiserum in both systems. Preimmune rabbit serum and unrelated hyperimmune sera, used as controls, did not stain the tangles. These results show that the 50,000-dalton polypeptide purified from the neurofibrillary tangle-enriched fractions is a constituent of Alzheimer neurofibrillary tangles and, perhaps, of the paired helical filaments of which the tangles are composed.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Grundke-Iqbal I,Johnson AB,Terry RD,Wisniewski HM,Iqbal K

doi

10.1002/ana.410060612

subject

Has Abstract

pub_date

1979-12-01 00:00:00

pages

532-7

issue

6

eissn

0364-5134

issn

1531-8249

journal_volume

6

pub_type

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