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Genetic Association of Interleukin 33/ST2 Polymorphisms With Behcet's Uveitis
Minghang Pei1, Xinshu Liu2, Peizeng Yang3
1Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Frontiers in Immunology
|April 16, 2021
Summary
Interleukin 33 (IL33) and its receptor ST2 gene variations are linked to Behcet's disease (BD) and BD uveitis (BDU). Specific IL33/ST2 polymorphisms correlate with BDU development and disease subtypes.
Area of Science:
- Immunology
- Genetics
- Ophthalmology
Background:
- Interleukin 33 (IL33), an IL1 superfamily member, acts as a nuclear factor and interacts with the ST2 receptor.
- IL33 is recognized as a pro-inflammatory cytokine, and IL33/ST2 gene polymorphisms are implicated in immune disease pathogenesis.
- The role of IL33/ST2 in Behcet's disease (BD) pathogenesis is not fully understood.
Purpose of the Study:
- To investigate the association between IL33/ST2 gene polymorphisms and Behcet's disease (BD), specifically BD uveitis (BDU).
- To explore potential genetic differences in IL33/ST2 related to BD clinical subtypes.
Main Methods:
- Genotyping of IL33/ST2 gene polymorphisms in 585 BDU patients and 834 healthy controls.
- Utilized the Agena MassARRAY iPLEX platform for SNP analysis.
- Performed association analyses between SNPs and clinical characteristics of BD.
Main Results:
- The SNP rs3821204 was significantly associated with the development of BDU.
- A lower frequency of the rs2210463 G allele was observed in BD patients with genital involvement.
- Three SNPs (rs7044343, rs1048274, and rs2210463) showed significant genetic differences between complete-type and incomplete-type BD.
Conclusions:
- IL33/ST2 gene polymorphisms are implicated in the pathogenesis of BD uveitis.
- Distinct genetic backgrounds may contribute to the development of complete versus incomplete types of BD.
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