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Updated: Apr 29, 2026

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI
Published on: November 1, 2014
Characterisation of the horse transcriptome from immunologically active tissues
Joanna Moreton1, Sunir Malla2, A Aziz Aboobaker3
1Advanced Data Analysis Centre, University of Nottingham, Sutton Bonington Campus , Loughborough , Leicestershire , UK ; Deep Seq, School of Life Sciences, University of Nottingham, Medical School, Queen's Medical Centre , Nottingham , UK ; School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus , Loughborough , Leicestershire , UK.
Researchers sequenced equine immune system gene expression, identifying thousands of novel gene forms. This advances understanding of horses as models for human immune disorders.
Area of Science:
- Immunology
- Genomics
- Comparative Medicine
Background:
- The equine immune system is understudied, limiting its use as a model for human diseases.
- Current equine genome annotations are limited, hindering comprehensive gene expression analysis.
- Horses exhibit immune responses, like to bacterial lipopolysaccharide, relevant to human conditions.
Purpose of the Study:
- To characterize gene expression in the horse immune system.
- To identify novel gene isoforms in equine immune tissues.
- To improve equine genome annotation for better understanding of immune function.
Main Methods:
- Sequencing of 184 million transcriptome short reads from immunologically active tissues of three horses.
- Utilizing the "Twilight" equine genome reference for analysis.
- Comparison of sequenced data against existing Ensembl horse genome annotation.
Main Results:
- Identification of 8,763 potentially novel gene isoforms.
- Detailed characterization of gene expression in equine immune tissues.
- Significant expansion of known equine gene repertoire.
Conclusions:
- The study significantly enhances the understanding of the equine immune system's genetic landscape.
- Identified novel isoforms provide a foundation for future research into equine immunology and disease modeling.
- This work supports the potential of horses as valuable models for human immune disorders.

