Abstract
Inhibition of prolyl oligopeptidase (PO) elevates inositol phosphate (IP) signalling and reduces cell sensitivity to lithium (Li+). This review discusses recent evidence that shows PO acts via the multiple inositol polyphosphate phosphatase (MIPP) to regulate gene expression. As a consequence, PO inhibition causes both a transient, rapid increase in I(1,4,5)P3 and a long-term elevation of IP signalling. This pathway is evolutionary conserved, being present in both the social amoeba Dictyostelium and human cell systems, and has potential implications for mental health.
Keywords: Bipolar mood disorder, Dictyostelium, inositol phosphate signalling, lithium, multiple inositol polyphosphate phosphatase, prolyl oligopeptidase, IMPase, LY294002, GSK-3, MIPP, ISYNA1
CNS & Neurological Disorders - Drug Targets
Title: Prolyl Oligopeptidase, Inositol Phosphate Signalling and Lithium Sensitivity
Volume: 10 Issue: 3
Author(s): Adrian J. Harwood
Affiliation:
Keywords: Bipolar mood disorder, Dictyostelium, inositol phosphate signalling, lithium, multiple inositol polyphosphate phosphatase, prolyl oligopeptidase, IMPase, LY294002, GSK-3, MIPP, ISYNA1
Abstract: Inhibition of prolyl oligopeptidase (PO) elevates inositol phosphate (IP) signalling and reduces cell sensitivity to lithium (Li+). This review discusses recent evidence that shows PO acts via the multiple inositol polyphosphate phosphatase (MIPP) to regulate gene expression. As a consequence, PO inhibition causes both a transient, rapid increase in I(1,4,5)P3 and a long-term elevation of IP signalling. This pathway is evolutionary conserved, being present in both the social amoeba Dictyostelium and human cell systems, and has potential implications for mental health.
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Cite this article as:
J. Harwood Adrian, Prolyl Oligopeptidase, Inositol Phosphate Signalling and Lithium Sensitivity, CNS & Neurological Disorders - Drug Targets 2011; 10 (3) . https://dx.doi.org/10.2174/187152711794653779
DOI https://dx.doi.org/10.2174/187152711794653779 |
Print ISSN 1871-5273 |
Publisher Name Bentham Science Publisher |
Online ISSN 1996-3181 |
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