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The human transcription factor AP-2β intron 2 polymorphism – a possible explanation for functionality
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Neuroscience.
Manuscript (Other academic)
URN: urn:nbn:se:uu:diva-92308OAI: oai:DiVA.org:uu-92308DiVA: diva2:165334
Available from: 2004-11-02 Created: 2004-11-02 Last updated: 2010-01-13Bibliographically approved
In thesis
1. Transcription Factor AP-2 in Relation to Personality and Antidepressant Drugs
Open this publication in new window or tab >>Transcription Factor AP-2 in Relation to Personality and Antidepressant Drugs
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The CNS monoaminergic systems are considered as the head engine regulating neuropsychiatric functions and personality. Transcription factor AP-2 is known to be essential for the development of the brainstem including the monoaminergic nuclei, and has the ability to regulate many genes in the monoaminergic systems. The ability of transcription factors to regulate specific gene expression, has lately made them hot candidates as drug targets. In this thesis, results indicating a role of AP-2 in the molecular effects of the antidepressant drugs citalopram and phenelzine, are presented.

A polymorphism in the second intron of the gene encoding AP-2ß has previously been associated with anxiety-related personality traits as estimated by the Karolinska Scales of Personality (KSP). In this thesis, results confirming this association, gained by using a larger material and several different personality scales, are presented. Furthermore, data is presented showing an association between the activity of platelet monoamine oxidase, a trait-dependent marker for personality, and the genotype of the AP-2ß intron 2 polymorphism.

The functional importance of the AP-2ß intron 2 polymorphism has not yet been elucidated. Included in this thesis are results showing that the AP-2ß intron 2 polymorphism is not in linkage disequilibrium with the only other described polymorphism in the AP-2ß gene, i.e. in the AP-2ß promoter (-67 G/A). Introns have in several studies been shown to include binding sites for regulatory proteins, and thus, to be important in transcriptional regulation. Results are presented demonstrating that one human brain nuclear protein binds only to the long variant of the AP-2ß intron 2 polymorphism. If this protein is involved in the regulation of the AP-2ß gene, it would affect the expression levels of the AP-2ß protein.

In general, this thesis further establishes the role of transcription factor AP-2 as a regulatory factor of importance for personality and monoaminergic functions.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2004. 51 p.
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 0282-7476 ; 1385
Pharmacology, Transcription factors, serotonin, AP-2, antidepressants, CNS, personality, Farmakologi
National Category
Pharmacology and Toxicology
urn:nbn:se:uu:diva-4638 (URN)91-554-6074-7 (ISBN)
Public defence
2004-11-26, B21, BMC, Husargatan 3, Uppsala, 13:15
Available from: 2004-11-02 Created: 2004-11-02Bibliographically approved

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