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Proteomics Research in Schizophrenia.

Katarina Davalieva1, Ivana Maleva Kostovska1, Andrew J Dwork2

  • 1Research Centre for Genetic Engineering and Biotechnology "Georgi D Efremov," Macedonian Academy of Sciences and Arts Skopje, Republic of Macedonia.

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|February 25, 2016
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Summary

Proteomics studies reveal molecular alterations in schizophrenia, particularly in brain cells like astrocytes and myelin. These findings offer potential biomarkers for understanding schizophrenia's complex pathology.

Keywords:
2D-DIGEastrocytesbrain tissuegliamyelinoligodendrocytesshotgun proteomics

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Biochemistry

Background:

  • Schizophrenia's neuropathology and pathophysiology remain poorly understood despite extensive research.
  • Proteomic studies offer a powerful approach to identify molecular mechanisms and cellular targets in schizophrenia.

Purpose of the Study:

  • To review and summarize findings from proteomic studies in schizophrenia.
  • To identify candidate biomarkers and understand their cell-type specificity.

Main Methods:

  • Analysis of proteomic data from postmortem brain tissue, peripheral tissues, and body fluids.
  • Application of various proteomic technologies including 2-D PAGE, 2-D DIGE, SELDI-TOF, and mass spectrometry-based quantification (ICAT, MS(E)).

Main Results:

  • Proteomic studies have identified numerous quantitative and qualitative protein alterations in schizophrenia.
  • A disproportionate number of altered proteins are enriched in specific brain cell types, notably astrocytes (e.g., aldolase C, glial fibrillary acidic protein).
  • Alterations in myelin-associated proteins were frequently observed, often showing decreased expression.

Conclusions:

  • Proteomics has significantly advanced the understanding of molecular changes in schizophrenia.
  • Candidate biomarkers, including astrocytic and myelin-associated proteins, warrant further investigation.
  • Cell-type-specific protein alterations may hold key insights into schizophrenia's pathophysiology.