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Veterinary record open2015; 2(1); e000058; doi: 10.1136/vetreco-2014-000058

Age-dependent expression of osteochondrosis-related genes in equine leukocytes.

Abstract: Osteochondrosis (OC) is a developmental disease in horses which has a significant impact on the horse's welfare and performance. The early disturbance in the process of endochondral ossification progresses to inflammatory and repair processes in older horses. Previously, differentially expressed genes in leukocytes of OC-affected horses have been identified. The aim of the present study is to detect age-related changes in these differentially expressed genes. Methods: The expression of OC-related genes was analysed by real-time PCR and subsequent statistical analysis (ΔΔCT) in the leukocytes of 135 Belgian Warmblood horses divided into three different age groups: 30 months (n=38). Results: Relative expression of genes of horses less than 12 months of age showed significant induction of the genes MGAT4A, PRKCG, MHCI, ApoB, ApoB3G, B4GALT6 and a significantly lower expression of the genes OAS3. Horses of 18-24 months of age, showed a significantly higher expression of the genes TBC1D9, MGAT4A, IFIH1, MHCIIa and MMP1. Horses of more than 30 months of age showed a significantly higher expression of the genes MGAT4A, HP, SECTM1 compared with their age-matched control groups. Conclusions: The study demonstrates that OC-related genes are differentially expressed in horses of different ages compared with their age-matched controls. Some of the genes may be implicated in cell signalling and differentiation as well as carbohydrate and lipid metabolism and inflammation. However, the causal relationship between the differentially expressed genes and the development and progression of the OC lesions needs to be determined.
Publication Date: 2015-03-24 PubMed ID: 26392886PubMed Central: PMC4567144DOI: 10.1136/vetreco-2014-000058Google Scholar: Lookup
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  • Journal Article

Summary

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The research article focuses on the investigation of age-related changes in the expression of osteochondrosis-related genes in horses. The study suggests that these genes vary across different ages and may impact cell signalling, differentiation, and metabolism.

Background and Aim

  • The study was driven by the need to further understand osteochondrosis (OC), a developmental disease in horses that disrupts endochondral ossification while significantly impacting their welfare and performance. Prior research had identified differentially expressed genes in the leukocytes of OC-affected horses.
  • The primary aim of the ongoing investigation was to detect any possible age-related changes in the expression of these genes.

Methods

  • The researchers used real-time PCR to analyze the expression of OC-related genes and made use of ΔΔCT for subsequent statistical analysis.
  • The sample for the study comprised 135 Belgian Warmblood horses divided into three different age groups: less than 12 months (47 horses), 18-24 months (50 horses), and more than 30 months (38 horses).

Results

  • The findings from the study suggest notable variations in the expression of genes across different age groups. For horses less than 12 months of age, there was significant induction of several genes (MGAT4A, PRKCG, MHCI, ApoB, ApoB3G, B4GALT6) and a notably lower expression of the OAS3 gene.
  • In the case of horses aged 18-24 months, a significantly higher expression of TBC1D9, MGAT4A, IFIH1, MHCIIa, and MMP1 genes was observed. Similarly, horses older than 30 months exhibited a significantly higher expression of MGAT4A, HP, and SECTM1 genes, compared with their age-matched control groups.

Conclusions

  • One of the critical insights from the study was that OC-related genes are differentially expressed in horses of different ages when compared with their age-matched peers.
  • Some of these genes could potentially influence cell signalling and differentiation processes, as well as carbohydrate and lipid metabolism and inflammation.
  • However, a conclusive causal relationship between these differentially expressed genes and the development and progression of OC lesions still needs to be established.

Cite This Article

APA
Mendoza L, Piquemal D, Lejeune JP, Vander Heyden L, Noguier F, Bruno R, Sandersen C, Serteyn D. (2015). Age-dependent expression of osteochondrosis-related genes in equine leukocytes. Vet Rec Open, 2(1), e000058. https://doi.org/10.1136/vetreco-2014-000058

Publication

ISSN: 2052-6113
NlmUniqueID: 101653671
Country: United States
Language: English
Volume: 2
Issue: 1
Pages: e000058
PII: e000058

Researcher Affiliations

Mendoza, L
  • University of Liège , Liège , Belgium ; Equine Research and Development Center , Mont-le-Soie , Belgium.
Piquemal, D
  • Computational Biology Institute (IBC) , France ; University of Montpellier2 , Montpellier , France ; Acobiom , Montpellier , France.
Lejeune, J P
  • Equine Research and Development Center , Mont-le-Soie , Belgium.
Vander Heyden, L
  • Equine Research and Development Center , Mont-le-Soie , Belgium.
Noguier, F
  • Acobiom , Montpellier , France.
Bruno, R
  • Acobiom , Montpellier , France.
Sandersen, C
  • University of Liège , Liège , Belgium.
Serteyn, D
  • University of Liège , Liège , Belgium ; Equine Research and Development Center , Mont-le-Soie , Belgium.

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