Optimized Protocol for Intestinal Swiss Rolls and Immunofluorescent Staining of Paraffin Embedded Tissue

Sarah A. Dooley; Rachel Stubler; Rachel M. Edens; Piper R. McKee; Jordan N. Rucker; Amy Engevik

doi:10.3791/66977

Protocolo optimizado para rollos suizos intestinales y tinción inmunofluorescente de tejido inclu...

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Optimized Protocol for Intestinal Swiss Rolls and Immunofluorescent Staining of Paraffin Embedded Tissue

Protocolo optimizado para rollos suizos intestinales y tinción inmunofluorescente de tejido incluido en parafina

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08:25 min

July 19, 2024

DOI: 10.3791/66977-v

Sarah A. Dooley*¹, Rachel Stubler*¹, Rachel M. Edens¹, Piper R. McKee¹, Jordan N. Rucker¹, Amy Engevik¹

¹Department of Regenerative Medicine and Cell Biology,Medical University of South Carolina

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Overview

This research investigates the gastrointestinal tract's functions and the impact of pathological conditions on intestinal epithelial cells. The study emphasizes the significance of tissue fixation and immunofluorescent staining for accurate results in cellular analysis.

Key Study Components

Research Area

Gastrointestinal physiology
Pathological responses in intestinal cells
Immunohistochemistry techniques

Background

The intestine plays a crucial role in digestion and nutrient absorption.
Different regions of the intestine have specialized functions and structures.
Proper tissue preservation and processing are essential for robust immunostaining.

Methods Used

Swiss roll technique for tissue fixation and processing
Mouse model
Immunofluorescent staining methods

Main Results

Detailed visualization of all regions of the mouse intestine is achievable in a single paraffin block.
The method facilitates consistent and reproducible results across diverse antibodies.
Improved understanding of intestinal cell type roles in homeostasis and inflammation.

Conclusions

The protocol provides an effective approach to study various questions in intestinal biology.
Enhances methodologies for future research in cellular response to environmental changes.

Frequently Asked Questions

What is the Swiss roll technique?

The Swiss roll technique is a method for tissue fixation and processing, enabling the preservation and orientation of various intestinal regions in a single block.

Why is antibody specificity important?

Antibody specificity is crucial for accurate labeling of distinct cellular structures during immunostaining, ensuring reliable detection of target proteins.

How does this protocol save resources?

Using the Swiss roll technique allows for the visualization of multiple intestinal regions within one paraffin block, reducing the need for additional embedding materials and reagents.

What types of conditions are studied with this method?

The method is applicable for investigating responses to infection, inflammation, obesity, and genetic mutations in intestinal cells.

Can this technique be used for other tissues?

While the protocol is designed for intestinal tissues, the principles may be adapted for use with other organ systems, subject to validation.

What are the key phases of the protocol?

Key phases include tissue removal, fixation, rolling, embedding, and immunostaining, providing a comprehensive approach to tissue processing.

How does tissue processing affect immunostaining?

Proper tissue processing and preservation are essential for high-quality immunofluorescent staining, directly influencing the clarity and reliability of results.

El intestino es vital para la digestión y la absorción. Cada región (duodeno, yeyuno, íleon, colon) cumple funciones distintas debido a estructuras celulares únicas. El estudio de la fisiología intestinal exige un análisis meticuloso de los tejidos. Este protocolo describe la fijación y el procesamiento de tejidos mediante la técnica de rollo suizo, lo que garantiza una inmunotinción precisa a través de la preservación y orientación adecuadas de los tejidos.

Nuestra investigación se centra en comprender cómo funciona el tracto gastrointestinal y cómo estas funciones se ven afectadas por diferentes estados patológicos. Estamos interesados en conocer la respuesta de diferentes células epiteliales intestinales a diversas afecciones, como infección e inflamación, obesidad y mutaciones genéticas. La importancia de la especificidad de los anticuerpos es cada vez más evidente.

Sin embargo, el impacto de la fijación de tejidos, la preservación y los métodos de tinción estandarizados se subestiman en el campo. La tinción inmunofluorescente consistente y robusta depende en gran medida de la calidad de la preservación, el procesamiento y la orientación del tejido que se produce en los pasos iniciales de la recopilación de datos. Este protocolo proporciona un método simple y efectivo para investigar diversas cuestiones relacionadas con la biología y la fisiología de las células intestinales.

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