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Gene and expression analyses reveal enhanced expression of pericentrin 2 (PCNT2) in bipolar disorder.

Abstract：

BACKGROUND:DISC1 has been suggested as a causative gene for psychoses in a large Scottish kindred. PCNT2 has recently been identified as an interacting partner of DISC1. In this study, we investigated the role of PCNT2 in bipolar disorder, by gene expression analysis and genetic association study. METHODS:By TaqMan real-time quantitative reverse transcriptase polymerase chain reaction (qRT-PCR), we examined the messenger RNA (mRNA) levels of PCNT2 in the postmortem prefrontal cortex of bipolar disorder (n = 34), schizophrenia (n = 31), and control subjects (n = 32), obtained from Stanley Array Collection. We also compared the mRNA levels of PCNT2 in the peripheral blood lymphocytes of bipolar disorder (n = 21), schizophrenia (n = 21), depression (n = 33), and control subjects (n = 57). For the association study, 23 single nucleotide polymorphisms (SNPs) were analyzed in 285 bipolar disorder patients and 287 age-and gender-matched control subjects, all of Japanese origin. The genotypes were determined by TaqMan assay. RESULTS:Significantly higher expression of PCNT2 was observed in the brain samples of bipolar group, compared with the control (p = .001) and schizophrenia (p = .018) groups. In the peripheral blood lymphocytes also, a significantly higher expression of PCNT2 was observed in the bipolar group, compared with the control subjects (p = .043). However, none of the SNPs analyzed in our study showed a significant association with bipolar disorder; a weak tendency toward association was observed for two intronic SNPs. CONCLUSIONS:Our findings suggest that elevated levels of PCNT2 might be implicated in the pathophysiology of bipolar disorder.

journal_name

Biol Psychiatry

journal_title

Biological psychiatry

authors

Anitha A,Nakamura K,Yamada K,Iwayama Y,Toyota T,Takei N,Iwata Y,Suzuki K,Sekine Y,Matsuzaki H,Kawai M,Miyoshi K,Katayama T,Matsuzaki S,Baba K,Honda A,Hattori T,Shimizu S,Kumamoto N,Tohyama M,Yoshikawa T,Mori N

doi

10.1016/j.biopsych.2007.07.010

subject

Has Abstract

pub_date

2008-04-01 00:00:00

pages

678-85

issue

7

eissn

0006-3223

issn

1873-2402

pii

S0006-3223(07)00672-5

journal_volume

63

pub_type

杂志文章

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