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  • Title: [A role for microtubules in mental diseases?].
    Author: Andrieux A, Salin PA, Job D.
    Journal: Pathol Biol (Paris); 2004 Mar; 52(2):89-92. PubMed ID: 15001237.
    Abstract:
    Microtubules are key cytoskeletal components in the cytoplasm of eukaryotic cells where they have pleiotropic and vital roles in functions such as cell division, trafficking or morphogenesis. Microtubules are especially abundant in neurons. Although microtubules are in many cells dynamic polymers, they exhibit an extreme state of stability in neurons. Previous work has indicated a central role of microtubule associated proteins called STOPs in neuronal microtubule stabilization. We have recently developed STOP null mice. These mice were devoid of stable brain microtubules but to our surprise had nevertheless an apparently normal brain anatomy. However the mice showed synaptic defects affecting different forms of long- and short-term synaptic plasticity. These synaptic defects were associated with severe behavioral defects that showed a remarkable sensitivity to long-term treatment with neuroleptics. We discuss the relationship of the phenotypes observed in STOP null mice with current models of schizophrenia in which the multiple, severe, and neuroleptic sensitive mental disorders caused by the disease are due to a "disease of the synapse".
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