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Proteomic Sample Preparation from Formalin Fixed and Paraffin Embedded Tissue
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Sample Treatment for Saliva Proteomics.

Francisco Amado1, Maria João Calheiros-Lobo2, Rita Ferreira3

  • 1QOPNA/LAQV, Departamento de Química da Universidade de Aveiro, Aveiro, Portugal. famado@ua.pt.

Advances in Experimental Medicine and Biology
|June 26, 2019
PubMed
Summary

Standardizing saliva collection and preservation is crucial for accurate proteomics and peptidomics. Simple, reproducible methods ensure reliable data for clinical applications and biomarker discovery.

Keywords:
SalivaSaliva collectionSalivary peptidomicsSalivary proteomics

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Area of Science:

  • Biochemistry
  • Proteomics
  • Salivary Diagnostics

Background:

  • The preanalytical phase (collection, handling, storage) is critical for saliva proteomics/peptidomics.
  • Saliva composition varies based on collection methods, impacting analytical results.
  • Standardization is needed for sensitive, high-throughput saliva analyses.

Purpose of the Study:

  • To provide recommendations for standardized saliva sampling and preservation.
  • To facilitate the use of saliva in clinical applications.
  • To improve the translation of proteomics data for diagnosis and therapeutic targets.

Main Methods:

  • Review of current saliva collection and preservation strategies.
  • Emphasis on simplicity and standardization for reproducibility.
  • Guidelines to prevent posttranslational modifications like proteolysis.

Main Results:

  • Identified challenges in saliva preanalytical procedures.
  • Highlighted the impact of collection methodology on salivary gland contributions.
  • Proposed best practices for sample handling and storage.

Conclusions:

  • Standardized preanalytical procedures are essential for reliable saliva proteomics.
  • Simple, reproducible methods enhance data quality for clinical use.
  • Optimized sample handling aids in saliva-based diagnostics and target identification.