Antipsychotic drug use is correlated with CRP40/mortalin mRNA expression in the dorsolateral prefrontal cortex of human postmortem brain specimens

Schizophrenia Research
Joseph P GabrieleRam K Mishra

Abstract

Heat shock proteins act as intracellular chaperones by assisting with proper protein folding in response to various cellular stresses. In doing so, these proteins protect the cell from unwanted protein aggregation, which in turn, plays an important role in the pathogenesis of numerous disorders. Previous reports from our laboratory have described a 40 kDa catecholamine regulated heat shock-like protein (CRP40), an alternate gene product of the 70 kDa mitochondrial heat shock protein, mortalin. CRP40 shares an intimate association with dopaminergic activity, specifically as it pertains to dopamine dysregulation in schizophrenia. This study investigates human CRP40/mortalin mRNA expression within dorsolateral prefrontal cortex postmortem specimens from normal control, schizophrenic and bipolar patients obtained from the Stanley Medical Research Institute. Real-time polymerase chain reaction was carried out for all patient samples (n=105; n=35 per group) in a blinded manner. No significant alterations in CRP40/mortalin mRNA expression levels were observed between control, bipolar and schizophrenic patients. However, multiple regression demonstrated a distinct positive correlation between CRP40/mortalin mRNA expression and lifetime...Continue Reading

References

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Citations

Mar 23, 2013·Movement Disorders : Official Journal of the Movement Disorder Society·Jovana LubardaJoseph P Gabriele

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