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Immunohistochemical Techniques for Phosphoproteins.

Berenice L Sanz Ressel1,2, Alfredo A Molinolo3

  • 1Laboratorio de Histología y Embriología Descriptiva, Experimental y Comparada (LHYEDEC), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina. lsanzressel@fcv.unlp.edu.ar.

Methods in Molecular Biology (Clifton, N.J.)
|December 13, 2022
PubMed
Summary

Immunohistochemical techniques using phosphospecific antibodies enable the study of protein phosphorylation in tissues. This chapter details protocols for analyzing phosphoproteins in formalin-fixed, paraffin-embedded tissue sections.

Keywords:
Formalin-fixed tissueImmunohistochemistryParaffin-embedded tissuePhosphoproteinPhosphospecific antibodiesSignaling pathways

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Area of Science:

  • Cellular Biology
  • Biochemistry
  • Histology

Background:

  • Signaling pathways are crucial in cellular functions.
  • Protein phosphorylation is a key regulatory mechanism in these pathways.
  • Studying phosphorylation patterns in tissues is essential for understanding cellular processes.

Purpose of the Study:

  • To detail immunohistochemical protocols for studying protein phosphorylation.
  • To enable the detection of phosphoproteins in tissue sections.
  • To provide a comprehensive guide for researchers in the field.

Main Methods:

  • Utilizing immunohistochemical techniques.
  • Employing phosphospecific antibodies.
  • Analyzing formalin-fixed and paraffin-embedded tissue sections.

Main Results:

  • Established detailed protocols for phosphoprotein analysis.
  • Demonstrated the efficacy of phosphospecific antibodies in tissue sections.
  • Provided a framework for reproducible research in phosphoproteomics.

Conclusions:

  • Immunohistochemistry is a powerful tool for studying protein phosphorylation in situ.
  • The described protocols facilitate the investigation of signaling pathway dysregulation.
  • This work enhances the understanding of cellular signaling in various biological contexts.