Understanding SNP Effects on Gene Expression in Celiac Disease
Author Information
Author(s): Graham A Heap, Gosia Trynka, Ritsert C Jansen, Marcel Bruinenberg, Morris A Swertz, Lotte C Dinesen, Karen A Hunt, Cisca Wijmenga, David A van Heel, Lude Franke
Primary Institution: Institute of Cell and Molecular Science, Barts and The London School of Medicine and Dentistry, London, UK
Hypothesis
How do SNP variants influence gene expression in primary human leucocytes from individuals with celiac disease?
Conclusion
The study highlights the complex nature of genotypic effects on gene expression, emphasizing the need for relevant tissue and large datasets to identify the functions of genetic risk variants.
Supporting Evidence
- 2,315 SNP variants influenced gene expression at 765 different transcripts.
- 135 SNP-probe effects were also detected in a HapMap B cell line dataset.
- Celiac associated risk variants showed significant genotype-expression correlations in peripheral blood.
Takeaway
This study looked at how tiny changes in our genes can affect how our body makes proteins, especially in people with celiac disease. It found that these changes can be really complicated.
Methodology
The study correlated gene expression and genetic variation in primary leucocytes from individuals with celiac disease and compared findings with a B cell line dataset.
Potential Biases
Potential bias may arise from the use of different tissues and the effects of primer polymorphisms on hybridization.
Limitations
The study is limited by the complexity of genetic variation and the challenges in detecting trans-eQTLs due to biological noise.
Participant Demographics
Participants included 115 individuals with celiac disease (median age 51, 70% female) and 22 healthy controls.
Statistical Information
P-Value
p<1.67 × 10-5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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