New Model of Action for Mood Stabilizers

Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations

Maria Corena-McLeod, Consuelo Walss-Bass, Alfredo Oliveros, Andres Gordillo Villegas, Carolina Ceballos, Cristine M. Charlesworth, Benjamin Madden, Paul J. Linser, Leslie Van Ekeris, Kristin Smith, Elliott Richelson

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Background:Mitochondrial short and long-range movements are necessary to generate the energy needed for synaptic signaling and plasticity. Therefore, an effective mechanism to transport and anchor mitochondria to pre- and post-synaptic terminals is as important as functional mitochondria in neuronal firing. Mitochondrial movement range is regulated by phosphorylation of cytoskeletal and motor proteins in addition to changes in mitochondrial membrane potential. Movement direction is regulated by serotonin and dopamine levels. However, data on mitochondrial movement defects and their involvement in defective signaling and neuroplasticity in relationship with mood disorders is scarce. We have previously reported the effects of lithium, valproate and a new antipsychotic, paliperidone on protein expression levels at the synaptic level.Hypothesis:Mitochondrial function defects have recently been implicated in schizophrenia and bipolar disorder. We postulate that mood stabilizer treatment has a profound effect on mitochondrial function, synaptic plasticity, mitochondrial migration and direction of movement.Methods:Synaptoneurosomal preparations from rat pre-frontal cortex were obtained after 28 daily intraperitoneal injections of lithium, valproate and paliperidone. Phosphorylated proteins were identified using 2D-DIGE and nano LC-ESI tandem mass spectrometry.Results:Lithium, valproate and paliperidone had a substantial and common effect on the phosphorylation state of specific actin, tubulin and myosin isoforms as well as other proteins associated with neurofilaments. Furthermore, different subunits from complex III and V of the electron transfer chain were heavily phosphorylated by treatment with these drugs indicating selective phosphorylation.Conclusions:Mood stabilizers have an effect on mitochondrial function, mitochondrial movement and the direction of this movement. The implications of these findings will contribute to novel insights regarding clinical treatment and the mode of action of these drugs.

Original languageEnglish (US)
Article numbere52147
JournalPLoS One
Volume8
Issue number5
DOIs
StatePublished - May 14 2013

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Neuronal Plasticity
lithium
Valproic Acid
Frontal Lobe
emotions
Lithium
Phosphorylation
Rats
phosphorylation
Mitochondria
rats
mitochondria
Two-Dimensional Difference Gel Electrophoresis
Plasticity
protein isoforms
drugs
Proteins
Cytoskeletal Proteins
Intermediate Filaments
Electrospray Ionization Mass Spectrometry

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Corena-McLeod, M., Walss-Bass, C., Oliveros, A., Gordillo Villegas, A., Ceballos, C., Charlesworth, C. M., ... Richelson, E. (2013). New Model of Action for Mood Stabilizers: Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations. PLoS One, 8(5), [e52147]. https://doi.org/10.1371/journal.pone.0052147

New Model of Action for Mood Stabilizers : Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations. / Corena-McLeod, Maria; Walss-Bass, Consuelo; Oliveros, Alfredo; Gordillo Villegas, Andres; Ceballos, Carolina; Charlesworth, Cristine M.; Madden, Benjamin; Linser, Paul J.; Van Ekeris, Leslie; Smith, Kristin; Richelson, Elliott.

In: PLoS One, Vol. 8, No. 5, e52147, 14.05.2013.

Research output: Contribution to journalArticle

Corena-McLeod, M, Walss-Bass, C, Oliveros, A, Gordillo Villegas, A, Ceballos, C, Charlesworth, CM, Madden, B, Linser, PJ, Van Ekeris, L, Smith, K & Richelson, E 2013, 'New Model of Action for Mood Stabilizers: Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations', PLoS One, vol. 8, no. 5, e52147. https://doi.org/10.1371/journal.pone.0052147
Corena-McLeod M, Walss-Bass C, Oliveros A, Gordillo Villegas A, Ceballos C, Charlesworth CM et al. New Model of Action for Mood Stabilizers: Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations. PLoS One. 2013 May 14;8(5). e52147. https://doi.org/10.1371/journal.pone.0052147
Corena-McLeod, Maria ; Walss-Bass, Consuelo ; Oliveros, Alfredo ; Gordillo Villegas, Andres ; Ceballos, Carolina ; Charlesworth, Cristine M. ; Madden, Benjamin ; Linser, Paul J. ; Van Ekeris, Leslie ; Smith, Kristin ; Richelson, Elliott. / New Model of Action for Mood Stabilizers : Phosphoproteome from Rat Pre-Frontal Cortex Synaptoneurosomal Preparations. In: PLoS One. 2013 ; Vol. 8, No. 5.
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AU - Oliveros, Alfredo

AU - Gordillo Villegas, Andres

AU - Ceballos, Carolina

AU - Charlesworth, Cristine M.

AU - Madden, Benjamin

AU - Linser, Paul J.

AU - Van Ekeris, Leslie

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AU - Richelson, Elliott

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AB - Background:Mitochondrial short and long-range movements are necessary to generate the energy needed for synaptic signaling and plasticity. Therefore, an effective mechanism to transport and anchor mitochondria to pre- and post-synaptic terminals is as important as functional mitochondria in neuronal firing. Mitochondrial movement range is regulated by phosphorylation of cytoskeletal and motor proteins in addition to changes in mitochondrial membrane potential. Movement direction is regulated by serotonin and dopamine levels. However, data on mitochondrial movement defects and their involvement in defective signaling and neuroplasticity in relationship with mood disorders is scarce. We have previously reported the effects of lithium, valproate and a new antipsychotic, paliperidone on protein expression levels at the synaptic level.Hypothesis:Mitochondrial function defects have recently been implicated in schizophrenia and bipolar disorder. We postulate that mood stabilizer treatment has a profound effect on mitochondrial function, synaptic plasticity, mitochondrial migration and direction of movement.Methods:Synaptoneurosomal preparations from rat pre-frontal cortex were obtained after 28 daily intraperitoneal injections of lithium, valproate and paliperidone. Phosphorylated proteins were identified using 2D-DIGE and nano LC-ESI tandem mass spectrometry.Results:Lithium, valproate and paliperidone had a substantial and common effect on the phosphorylation state of specific actin, tubulin and myosin isoforms as well as other proteins associated with neurofilaments. Furthermore, different subunits from complex III and V of the electron transfer chain were heavily phosphorylated by treatment with these drugs indicating selective phosphorylation.Conclusions:Mood stabilizers have an effect on mitochondrial function, mitochondrial movement and the direction of this movement. The implications of these findings will contribute to novel insights regarding clinical treatment and the mode of action of these drugs.

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