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Updated: Mar 9, 2026

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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
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Cytotoxic T lymphocyte-associated antigen 4 rs231775 polymorphism and osteosarcoma
Neoplasma
|January 6, 2017
Summary
The CTLA4 rs231775 AA genotype is linked to osteosarcoma risk in the Spanish population. This finding, consistent across populations, suggests rs231775 as a potential osteosarcoma susceptibility marker.
Area of Science:
- Genetics
- Oncology
- Immunology
Background:
- Previous studies identified a link between CTLA4 rs231775 AA genotype and osteosarcoma risk in Chinese populations.
- The rs231775 single nucleotide polymorphism (SNP) exhibits varying frequencies across different human populations.
- Investigating this SNP in other populations is crucial for understanding its broader role in osteosarcoma susceptibility.
Purpose of the Study:
- To evaluate the association between the CTLA4 rs231775 polymorphism and osteosarcoma susceptibility in the Spanish population.
- To conduct an updated meta-analysis to consolidate findings on rs231775 and osteosarcoma risk across diverse populations.
Main Methods:
- Genotypic association analyses were performed on data from 538 osteosarcoma cases and 623 controls from the Spanish population.
- An updated meta-analysis was conducted to synthesize evidence from multiple studies.
- Statistical analysis focused on the CTLA4 rs231775 (+49A/G) polymorphism and its association with osteosarcoma risk.
Main Results:
- Genotypic association analyses revealed that the CTLA4 rs231775 polymorphism is associated with osteosarcoma susceptibility in the Spanish population.
- The meta-analysis demonstrated that the CTLA4 rs231775 AA genotype is significantly associated with an increased risk of developing osteosarcoma across all analyzed populations (OR=2.07; 95% CI: 1.48-2.89).
Conclusions:
- The CTLA4 rs231775 AA genotype is a significant risk factor for osteosarcoma in the Spanish population.
- The rs231775 AA genotype may serve as a valuable susceptibility marker for osteosarcoma.
- Further research is warranted to explore the functional mechanisms underlying this association.
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