Abstract:
:Reelin is an extracellular glycoprotein involved in key cellular processes in developing and adult nervous system, including regulation of neuronal migration, synapse formation, and plasticity. Most of these roles are mediated by the intracellular phosphorylation of disabled-1 (Dab1), an intracellular adaptor molecule, in turn mediated by binding Reelin to its receptors. Altered expression and glycosylation patterns of Reelin in cerebrospinal and cortical extracts have been reported in Alzheimer's disease. However, putative changes in Reelin are not described in natural prionopathies or experimental models of prion infection or toxicity. With this is mind, in the present study, we determined that Reelin protein and mRNA levels increased in CJD human samples and in mouse models of human prion disease in contrast to murine models of prion infection. However, changes in Reelin expression appeared only at late terminal stages of the disease, which prevent their use as an efficient diagnostic biomarker. In addition, increased Reelin in CJD and in in vitro models does not correlate with Dab1 phosphorylation, indicating failure in its intracellular signaling. Overall, these findings widen our understanding of the putative changes of Reelin in neurodegeneration.
journal_name
Mol Neurobioljournal_title
Molecular neurobiologyauthors
Mata A,Urrea L,Vilches S,Llorens F,Thüne K,Espinosa JC,Andréoletti O,Sevillano AM,Torres JM,Requena JR,Zerr I,Ferrer I,Gavín R,Del Río JAdoi
10.1007/s12035-016-0177-8subject
Has Abstractpub_date
2017-10-01 00:00:00pages
6412-6425issue
8eissn
0893-7648issn
1559-1182pii
10.1007/s12035-016-0177-8journal_volume
54pub_type
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