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Related Concept Videos

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Transcriptomic profiling of cartilage ageing.

Mandy Jayne Peffers1, Xuan Liu2, Peter David Clegg1

  • 1Comparative Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Leahurst, Chester High Road, Neston, Wirral CH64 7TE, United Kingdom.

Genomics Data
|October 21, 2015
PubMed
Summary
This summary is machine-generated.

Ageing significantly impacts the musculoskeletal system, particularly articular cartilage. Gene expression analysis reveals reduced key genes in older equine cartilage, suggesting a link to osteoarthritis development.

Keywords:
AgeingCartilageExtracellular matrixRNASeqSmall non-coding RNA

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Area of Science:

  • Musculoskeletal biology
  • Molecular biology
  • Ageing research

Background:

  • The ageing process affects musculoskeletal tissues, leading to functional decline and frailty.
  • Articular cartilage is prone to age-related diseases like osteoarthritis.
  • Previous research indicates changes in gene expression with age in cartilage.

Purpose of the Study:

  • To detail the gene expression data and quality controls for equine cartilage from young and old donors.
  • To provide comprehensive information for the RNA-Seq results published by Peffers et al. (2013).
  • To facilitate further research into age-related cartilage changes and osteoarthritis.

Main Methods:

  • RNA-Sequencing (RNA-Seq) was applied to analyze gene expression in young and old equine cartilage samples.
  • Quality control measures were implemented for gene expression data.
  • Data was uploaded to ArrayExpress under accession number E-MTAB-1386.

Main Results:

  • An over-representation of genes with reduced expression was identified in cartilage from older equine donors.
  • Key genes related to extracellular matrix, degradative proteases, matrix synthetic enzymes, cytokines, and growth factors showed decreased expression with age.
  • These findings highlight molecular changes in ageing cartilage.

Conclusions:

  • Ageing significantly alters gene expression profiles in equine articular cartilage.
  • Reduced expression of matrix-related and signaling genes may contribute to cartilage dysfunction and osteoarthritis.
  • The detailed data and quality controls support further investigation into the molecular mechanisms of cartilage ageing.