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Updated: Mar 22, 2026

The bm12 Inducible Model of Systemic Lupus Erythematosus SLE in C57BL/6 Mice
Published on: November 1, 2015
Association between BLK polymorphisms and susceptibility to SLE : A meta-analysis.
1Division of Rheumatology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 73, Inchon-ro, Seongbuk-gu, 136-705, Seoul, Korea.
This meta-analysis found that B-cell lymphocyte kinase (BLK) gene polymorphisms, specifically rs13277113 A/G, rs2736340 T/C, and rs2248932 T/C, are linked to increased susceptibility to systemic lupus erythematosus (SLE). These associations were significant across diverse ethnic groups, particularly in Caucasians and Asians.
Area of Science:
- Genetics
- Immunology
- Rheumatology
Background:
- Systemic lupus erythematosus (SLE) is a complex autoimmune disease with a significant genetic component.
- Polymorphisms in immune-related genes are increasingly recognized as key factors influencing SLE susceptibility.
- B-cell lymphocyte kinase (BLK) plays a crucial role in B-cell development and signaling, making it a candidate gene for autoimmune diseases.
Purpose of the Study:
- To investigate the association between specific B-cell lymphocyte kinase (BLK) gene polymorphisms and the risk of developing systemic lupus erythematosus (SLE).
- To analyze these associations across ethnically diverse populations, including Caucasians, Asians, and Africans.
Main Methods:
- A comprehensive meta-analysis was performed, pooling data from seventeen studies.
- The analysis included a total of 22,701 SLE patients and 36,365 controls.
- Specific BLK polymorphisms examined were rs13277113 A/G, rs2736340 T/C, rs2248932 T/C, and rs2618476 G/A.
Main Results:
- Significant associations were found between SLE susceptibility and BLK polymorphisms rs13277113 A allele (OR=1.359), rs2736340 T allele (OR=1.354), rs2248932 T allele (OR=1.285), and rs2618476 G allele (OR=1.374).
- These associations remained significant across Caucasian, Asian, and African populations for rs13277113, and in Caucasian and Asian populations for rs2736340, rs2248932, and rs2618476.
- The strongest evidence supported the association of rs13277113 A and rs2736340 T alleles with SLE across multiple ethnicities.
Conclusions:
- This meta-analysis confirms that specific polymorphisms in the BLK gene (rs13277113, rs2736340, rs2248932) are significantly associated with an increased risk of systemic lupus erythematosus.
- The findings highlight the role of BLK gene variations in SLE pathogenesis, particularly in Caucasian and Asian populations.
- These genetic markers may contribute to understanding the underlying mechanisms and ethnic variations in SLE susceptibility.
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