短笛内含子单核苷酸多态性rs13438494调控多巴胺和血清素的摄取，及基因组关联研究依赖性行为关联的解释

Title:The Piccolo Intronic Single Nucleotide Polymorphism rs13438494 Regulates Dopamine and Serotonin Uptake and Shows Associations with Dependence-Like Behavior in Genomic Association Study

Volume: 15 Issue: 3

Author(s): K. Uno, D. Nishizawa, S. Seo, K. Takayama, S. Matsumura, N. Sakai, K. Ohi, T. Nabeshima, R. Hashimoto, N. Ozaki, J. Hasegawa, N. Sato, F. Tanioka, H. Sugimura, K.-I.- Fukuda, S. Higuchi, H. Ujike, T. Inada, N. Iwata, I. Sora, M. Iyo, N. Kondo, M.-J. Won, N. Naruse, K. Uehara-Aoyama and M. Itokawa, M. Yamada, K. Ikeda, Y. Miyamoto and A. Nitta

Affiliation:

关键词: 依赖性行为，多巴胺，短笛，血清素，单核甘酸多态性

摘要: Piccolo (PCLO) inhibits methamphetamine-induced neuropharmacological effects via modulation of dopamine (DA) uptake and regulation of the transport of synaptic vesicles in neuronal cells. Clinical studies have recently suggested that the single nucleotide polymorphism (SNP) rs13438494 in the intron 24 of the PCLO gene is associated with psychiatric disorder, in the meta-analysis of GWAS. Therefore, in this study, we attempted to evaluate the possible role of the PCLO SNP in the mechanisms of uptake of monoamines. To characterize rs13438494 in the PCLO gene, we constructed plasmids carrying either the C or A allele of the SNP and transiently transfected them into SH-SY5Y cells to analyze genetic effects on the splicing of PCLO mRNA. The C and A allele constructs produced different composition of the transcripts, indicating that the intronic SNP does affect the splicing pattern. We also transfected DA and serotonin (5-hydroxytryptamine; 5- HT) transporters into cells and analyzed their uptakes to elucidate the association to psychiatric disorders. In the cells transfected with the C allele, both the DA and 5-HT uptake were enhanced compared to the A allele. We also conducted a clinical study, in order to clarify the genetic associations. PCLO rs13438494 exhibits a relationship with the symptoms of drug dependence or related parameters, such as the age of first exposure to methamphetamine, eating disorders, tobacco dependence and fentanyl requirement. Our findings suggest that rs13438494 is associated with drug abuse and contributes to the pathogenesis of psychiatric disorders via modulation of neurotransmitter turnover.

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K. Uno, D. Nishizawa, S. Seo, K. Takayama, S. Matsumura, N. Sakai, K. Ohi , T. Nabeshima, R. Hashimoto, N. Ozaki, J. Hasegawa, N. Sato, F. Tanioka, H. Sugimura, K.-I.- Fukuda , S. Higuchi, H. Ujike, T. Inada, N. Iwata, I. Sora, M. Iyo, N. Kondo, M.-J. Won, N. Naruse, K. Uehara-Aoyama and M. Itokawa, M. Yamada, K. Ikeda, Y. Miyamoto and A. Nitta , The Piccolo Intronic Single Nucleotide Polymorphism rs13438494 Regulates Dopamine and Serotonin Uptake and Shows Associations with Dependence-Like Behavior in Genomic Association Study, Current Molecular Medicine 2015; 15 (3) . https://dx.doi.org/10.2174/1566524015666150330145722