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Updated: Aug 29, 2025

In Situ Hybridization Combined with Immunohistochemistry in Cryosectioned Zebrafish Embryos

In Situ Hybridization Combined with Immunohistochemistry in Cryosectioned Zebrafish Embryos

Published on: March 3, 2022

Comparative in situ hybridization protocols in zebrafish.

Krista Dunn¹, Apoorva Vashisht¹, Dena R Hammond-Weinberger¹

¹Department of Biology, Murray State University, Murray, KY, USA.

|September 6, 2022

Summary

This summary is machine-generated.

This study optimized double in situ hybridization in zebrafish embryos by testing additives and stain pairings. The nitro-blue tetrazolium chloride/5-bromo-4-chloro-3-indolyl phosphate (BCIP) + Fast Red/BCIP combination proved most effective for gene expression analysis.

Keywords:

Cabin1 atoh1b comparative gene expression analysis protocol stain technique zebrafish

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Last Updated: Aug 29, 2025

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Published on: November 18, 2017

Area of Science:

Molecular Biology
Developmental Biology
Genetics

Background:

In situ hybridization is crucial for studying gene expression patterns.
Double in situ hybridization is complex and requires optimization.
Zebrafish embryos are a valuable model for developmental studies.

Purpose of the Study:

To optimize double in situ hybridization protocols in zebrafish embryos.
To evaluate the efficacy of optional additives and colorimetric stain pairings.
To demonstrate the spatial expression of Cabin1 and atoh1b genes.

Main Methods:

Standard in situ hybridization protocol was modified with polyvinyl alcohol and dextran sulfate.
Multiple colorimetric stain pairings were tested for double in situ hybridization.
Zebrafish embryos were used to assess gene expression of Cabin1 and atoh1b.

Main Results:

Optional additives improved staining time and reduced background noise.
The nitro-blue tetrazolium chloride/5-bromo-4-chloro-3-indolyl phosphate (BCIP) + Fast Red/BCIP stain pairing was most effective.
Distinct expression patterns for Cabin1 and atoh1b were observed in the developing zebrafish brain.

Conclusions:

Optimized double in situ hybridization protocols enhance efficiency and reduce troubleshooting.
The identified stain pairing offers a reliable method for simultaneous gene detection.
This study provides foundational data on Cabin1 and atoh1b expression in zebrafish brain development.