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Association between CCL2 haplotypes and knee osteoarthritis.
S L Hulin-Curtis1, J L Bidwell, M J Perry
1School of Veterinary Science, University of Bristol, Bristol, UK. Sarah.Curtis@bristol.ac.uk
International Journal of Immunogenetics
|December 6, 2012
Summary
Genetic variations in the CCL2 gene may influence knee osteoarthritis risk. Specifically, the CCL2 rs2857657 (G) allele was more common in female knee osteoarthritis cases, suggesting a potential link.
Area of Science:
- Genetics and Molecular Biology
- Rheumatology and Orthopedics
Background:
- Osteoarthritis (OA) is a prevalent degenerative joint disease.
- The chemokine (C-C motif) ligand 2 (CCL2) gene plays a role in inflammatory processes.
- Understanding genetic factors influencing OA susceptibility is crucial for targeted interventions.
Purpose of the Study:
- To investigate the association between single nucleotide polymorphisms (SNPs) and haplotypes of the CCL2 gene and knee osteoarthritis (OA).
- To identify specific genetic variants or combinations that may confer risk or protection against knee OA.
Main Methods:
- Genotyping of five single nucleotide polymorphisms (SNPs) within the CCL2 gene.
- Reconstruction of 5-locus haplotypes for the CCL2 gene.
- Comparison of allele and haplotype frequencies between knee OA cases and control individuals.
Main Results:
- The CCL2 rs2857657 variant (G allele) was found more frequently in female knee OA cases compared to controls.
- A specific 5-locus haplotype (H5) of the CCL2 gene was exclusively identified in the control group, occurring at a frequency of 2.3%.
Conclusions:
- Genetic variations within the CCL2 gene may be associated with the development of knee osteoarthritis.
- The rs2857657 variant and specific CCL2 haplotypes show potential as biomarkers for knee OA susceptibility, particularly in females.
