title: Transcriptional activities of cholecystokinin promoter haplotypes and their relevance to panic disorder susceptibility.
abstract: We previously identified a polymorphic compound short tandem repeat (STR) in the 5'-regulatory region of the cholecystokinin (CCK) gene, and showed that when the STRs were classified into three groups based on length and linkage disequilibrium behavior with neighboring variants, the medium class allele was significantly associated with panic disorder. The present study examined the transcriptional activity of the CCK promoter construct containing the STR and downstream -188A/G variation. The STRs acted as transcriptional repressors with a similar potency among the three classes, but the long (L) class STR exhibited a synergistic effect on decreasing promoter activity when combined with -188G. The haplotype composed of the L class of STR and -188G was significantly less frequent in panic disorder (P = 0.0032; odds ratio, 95% confidence interval = 0.06, 0.01-0.69). These results suggest that the L-(-188G) haplotype may act as a protective factor against panic by reducing the expression of anxiogenic CCK.
authors.affiliation: Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako-city, Saitama 351-0198, Japan.
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Ebihara
authors.forename: Hisako
authors.initials: H
authors.lastname: Ohba
authors.forename: Eiji
authors.initials: E
authors.lastname: Hattori
authors.forename: Kazuo
authors.initials: K
authors.lastname: Yamada
authors.forename: Takeo
authors.initials: T
authors.lastname: Yoshikawa
mesh_terms: D000483:Alleles; D002766:Cholecystokinin / Q000235:genetics*; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D008156:Luciferases / Q000235:genetics / Q000378:metabolism; D016584:Panic Disorder / Q000235:genetics*; D011401:Promoter Regions, Genetic / Q000235:genetics*; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D020080:Tandem Repeat Sequences / Q000235:genetics; D015533:Transcriptional Activation; D014162:Transfection; D014407:Tumor Cells, Cultured
chemical_list: D011993:Recombinant Fusion Proteins; D002766:Cholecystokinin; D008156:Luciferases