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Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging
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Immunostaining Methods for Lysosomal Storage Disorder Research

Ewa A Ziółkowska1, Sophie H Wang1, Hemanth R Nelvagal1

  • 1Department of Pediatrics, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA.

Methods in Molecular Biology (Clifton, N.J.)
|October 13, 2025
PubMed

Insights

We optimized immunofluorescence staining protocols for analyzing lysosome structure and dysfunction in tissues. This method enhances sensitivity and allows simultaneous detection of multiple antigens for consistent, high-quality histological examination.

Area of Science:

  • Histopathology
  • Cell Biology
  • Immunohistochemistry

Background:

  • Immunostaining visualizes proteins and antigens in tissues via antigen-antibody interactions.
  • Immunoperoxidase methods have been superseded by immunofluorescence for enhanced sensitivity and multiplexing.
  • Tissue autofluorescence and storage material can obscure cellular details in specific disease studies.

Purpose of the Study:

  • To present an optimized immunofluorescence staining protocol for histological analysis.
  • To enable high-quality, consistent quantitative results in tissue examinations.
  • To facilitate the study of lysosomal structure and dysfunction.

Main Methods:

  • Utilized immunofluorescence staining for enhanced antigen detection.
  • Developed a counterstaining method to mask tissue autofluorescence.
  • Applied the protocol to analyze lysosome structural organization.

Main Results:

  • Achieved superior sensitivity and simultaneous detection of multiple antigens.
  • Successfully masked interfering histofluorescence and autofluorescent storage material.
  • Enabled detailed analysis of lysosomal impact on cells and tissues.

Conclusions:

  • The optimized protocol serves as a standard for high-quality histological examinations.
  • Immunofluorescence offers significant advantages over immunoperoxidase methods.
  • This technique is crucial for understanding lysosomal disorders at a cellular and tissue level.

Keywords:
HistologyImmunofluorescenceImmunohistochemistryPrimary antibodySecondary antibodyStainingTrueBlack®

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