title: Regulation of the Bcas1 and Baiap3 transcripts in the subthalamic nucleus in mice recovering from MPTP toxicity.
abstract: 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) exposure leads to significant and irreversible damage to dopaminergic neurons in both mice and humans. While MPTP exposure in humans causes permanent symptoms of Parkinson's disease, MPTP treated mice will recover behaviorally over a 3-week period. This mouse specific recovery might be linked to transcriptional changes in the basal ganglia enabling mice to maintain normal motor function in spite of low striatal dopamine levels. Laser microdissection was used to isolate the subthalamic nucleus from mice 7 and 28 days following MPTP exposure. High quality RNA was recovered and expressional analysis was performed on whole mouse genome microarrays. Identified regulated transcripts were validated in a separate batch of animals using quantitative PCR. Two transcripts with a significant regulation from days 7 to 28 in the MPTP treated groups, were identified: the brain specific angiogenesis inhibitor associated protein 3 (Baiap3) and the breast carcinoma amplified sequence 1 (Bcas1). Further studies of the molecular pathways involving these two transcripts may uncover processes in the subthalamic nucleus associated with the behavioral recovery observed after MPTP exposure.
authors.affiliation: Department of Neuroscience and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Panum Institute, Blegdamsvej 3, DK-2200 Copenhagen, Denmark. JBRL@lundbeck.com
authors.forename: J B
authors.initials: JB
authors.lastname: Lauridsen
authors.forename: J L
authors.initials: JL
authors.lastname: Johansen
authors.forename: J C
authors.initials: JC
authors.lastname: Rekling
authors.forename: K
authors.initials: K
authors.lastname: Thirstrup
authors.forename: A
authors.initials: A
authors.lastname: Moerk
authors.forename: T N
authors.initials: TN
authors.lastname: Sager
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D005786:Gene Expression Regulation / Q000502:physiology; D015972:Gene Expression Regulation, Neoplastic / Q000502:physiology; D006801:Humans; D020267:MPTP Poisoning / Q000235:genetics* / Q000503:physiopathology; D008297:Male; D008565:Membrane Proteins; D051379:Mice; D008810:Mice, Inbred C57BL; D009363:Neoplasm Proteins / Q000235:genetics* / Q000378:metabolism; D009419:Nerve Tissue Proteins / Q000235:genetics* / Q000378:metabolism; D020734:Parkinsonian Disorders / Q000235:genetics* / Q000503:physiopathology; D020127:Recovery of Function / Q000235:genetics*; D020531:Subthalamic Nucleus / Q000378:metabolism* / Q000503:physiopathology; D015533:Transcriptional Activation / Q000502:physiology
chemical_list: C484729:Adgrb3 protein, mouse; C113699:BCAS1 protein, human; C585200:Baiap3 protein, mouse; C571819:Bcas1 protein, mouse; D008565:Membrane Proteins; D009363:Neoplasm Proteins; D009419:Nerve Tissue Proteins