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Proteomics01:33

Proteomics

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Spatial Molecular Imaging of the Glycome Using Mass Spectrometry
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Spatial Molecular Imaging of the Glycome Using Mass Spectrometry

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Spatial neuroproteomics using imaging mass spectrometry.

Jörg Hanrieder1, Per Malmberg2, Andrew G Ewing3

  • 1National Center for Imaging Mass Spectrometry, University of Gothenburg and Chalmers University of Technology, Gothenburg, Sweden; Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden; Institute of Neuroscience and Physiology, Department Psychiatry and Neurochemistry, University of Gothenburg, Sahlgrenska University Hospital Mölndal, Mölndal, Sweden.

Biochimica Et Biophysica Acta
|January 14, 2015
PubMed
Summary
This summary is machine-generated.

Imaging mass spectrometry (IMS) offers advanced molecular imaging for understanding neurodegenerative diseases. This technique enables detailed protein and peptide profiling in situ, crucial for neurobiological research.

Keywords:
Central nervous system (CNS)Imaging mass spectrometryMALDI-ToFPeptidomicsProteomicsToF-SIMS

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Proteomics

Background:

  • The nervous system's complexity hinders understanding of neurodegenerative diseases at a molecular level.
  • Current bioanalytical technologies lack the sensitivity, specificity, and resolution for comprehensive molecular imaging in biological samples.

Purpose of the Study:

  • To review the developments and applications of imaging mass spectrometry (IMS) for protein and peptide profiling in neurobiology.
  • To highlight IMS as a powerful tool for investigating spatio-temporal regulations in the central nervous system (CNS).

Main Methods:

  • Review of existing literature on imaging mass spectrometry.
  • Focus on protein and peptide profiling applications in neurobiological and biomedical research.
  • Discussion of IMS's capability for in situ molecular imaging.

Main Results:

  • IMS provides high chemical specificity for comprehensive, spatial protein and peptide profiling.
  • The technique allows for detailed analysis of molecular changes in CNS tissues and cells.
  • IMS is emerging as a key technology in neuroproteomics.

Conclusions:

  • Imaging mass spectrometry is a powerful approach for advancing neurobiological and biomedical research.
  • IMS facilitates a deeper understanding of the molecular underpinnings of neurodegenerative diseases.
  • The review underscores the potential of IMS in neuroproteomics and neurology.