title: Apolipoprotein E and LRP1 Increase Early in Parkinson's Disease Pathogenesis.
abstract: Parkinson's disease (PD) is characterized by α-synuclein-containing Lewy bodies (LBs) and loss of melanized neurons in the substantia nigra (SN). Recently, a link between apolipoprotein E (ApoE) expression, α-synuclein aggregation, and neurodegeneration was suggested. Here, we report on ApoE expression appearing in melanized neurons of the SN and in LBs in both PD and incidental LB disease cases. Interestingly, increased expression of the low-density lipoprotein receptor-related protein 1 (the receptor for ApoE) was also observed in incidental LB disease and PD. Our data suggest that alterations in lipoprotein homeostasis/signaling in melanized neurons of the SN are an early event during PD pathogenesis.
authors: Department of Anatomy and Neurosciences, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands. m.wilhelmus@vumc.nl
authors: Micha M M
authors: MM
authors: Wilhelmus
authors: John G J M
authors: JG
authors: Bol
authors: Elise S
authors: ES
authors: Van Haastert
authors: Annemieke J M
authors: AJ
authors: Rozemuller
authors: Guojun
authors: G
authors: Bu
authors: Benjamin
authors: B
authors: Drukarch
authors: Jeroen J M
authors: JJ
authors: Hoozemans
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001057:Apolipoproteins E / Q000378:metabolism*; D002102:Cadaver; D005260:Female; D006706:Homeostasis; D006801:Humans; D007150:Immunohistochemistry; D016631:Lewy Bodies / Q000378:metabolism / Q000473:pathology; D026503:Low Density Lipoprotein Receptor-Related Protein-1 / Q000378:metabolism*; D008297:Male; D008543:Melanins / Q000378:metabolism; D008875:Middle Aged; D009410:Nerve Degeneration / Q000378:metabolism / Q000473:pathology; D009474:Neurons / Q000378:metabolism; D010300:Parkinson Disease / Q000209:etiology* / Q000378:metabolism / Q000473:pathology; D013378:Substantia Nigra / Q000378:metabolism / Q000473:pathology; D051844:alpha-Synuclein / Q000378:metabolism
chemical_list: D001057:Apolipoproteins E; C475476:LRP1 protein, human; D026503:Low Density Lipoprotein Receptor-Related Protein-1; D008543:Melanins; D051844:alpha-Synuclein