PMID- 1763893 OWN - NLM STAT- MEDLINE DCOM- 19920212 LR - 20071114 IS - 0364-5134 (Print) IS - 0364-5134 (Linking) VI - 30 IP - 5 DP - 1991 Nov TI - Expression patterns of beta-amyloid precursor protein (beta-APP) in neural and nonneural human tissues from Alzheimer's disease and control subjects. PG - 686-93 AB - Both neural and nonneural human tissues from patients with or without Alzheimer's disease (AD) were surveyed to detect the presence of the beta-amyloid protein and its precursors. This was accomplished using polyclonal and monoclonal antibodies to epitopes in the 695 amino acid long beta-APP (i.e., beta-APP695), as well as in related beta-APPs. Immunoreactivity in beta-APP in brain was prominent in senile plaques, extraneuronal tangles, and neurons. Outside the brain, beta-APP staining was seen in neurons and satellite glial cells of the dorsal root, enteric and trigeminal ganglia, the adeno- and neurohypophysis, megakaryocytes, and adrenal gland in samples from patients with AD and those without AD. Western blots of neocortex revealed three major proteins with apparent molecular masses of 105, 115, and 125 kDa in the insoluble membrane-associated fractions, while two broad bands with a molecular weight centered at about 100 and 120 kDa were detected in soluble fractions. In addition, the pituitary and adrenal glands as well as cardiac muscle revealed prominent immunobands in membrane-associated fractions. Notably, other nonneural tissues were devoid of beta-APP immunoreactivity. Thus, the beta-APPs are detectable only in a limited number of nonneural tissues. Taken together, these data suggest that beta-APPs produced in the brain are sources of beta-APP peptides that accumulate as senile plaques in AD. FAU - Arai, H AU - Arai H AD - Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104. FAU - Lee, V M AU - Lee VM FAU - Messinger, M L AU - Messinger ML FAU - Greenberg, B D AU - Greenberg BD FAU - Lowery, D E AU - Lowery DE FAU - Trojanowski, J Q AU - Trojanowski JQ LA - eng GR - AG-09215/AG/NIA NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Ann Neurol JT - Annals of neurology JID - 7707449 RN - 0 (Amyloid beta-Protein Precursor) RN - 0 (Nerve Tissue Proteins) SB - IM MH - Alzheimer Disease/*metabolism/pathology MH - Amyloid beta-Protein Precursor/*biosynthesis MH - Animals MH - Brain/metabolism/pathology MH - Gene Expression MH - Humans MH - Mice MH - Mice, Inbred BALB C/immunology MH - Muscles/metabolism/pathology MH - Nerve Tissue Proteins/*biosynthesis MH - Nervous System Diseases/metabolism/pathology MH - Organ Specificity MH - Peripheral Nerves/metabolism/pathology MH - Viscera/metabolism/pathology EDAT- 1991/11/01 00:00 MHDA- 1991/11/01 00:01 CRDT- 1991/11/01 00:00 PHST- 1991/11/01 00:00 [pubmed] PHST- 1991/11/01 00:01 [medline] PHST- 1991/11/01 00:00 [entrez] AID - 10.1002/ana.410300509 [doi] PST - ppublish SO - Ann Neurol. 1991 Nov;30(5):686-93. doi: 10.1002/ana.410300509.