1. A study of the association between Galectin-9 gene (LGALS9) polymorphisms and rheumatoid arthritis in Egyptian patients.
- Author
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Ameen, Seham Gouda, Zidan, Magda Abd el-Aziz, Amer, Arwa S., Elshahat, Nessma Fathy, and Elhalim, Walid Abd Ellatif Abd
- Subjects
PROTEINS ,NATURAL immunity ,RESEARCH ,FIBROBLASTS ,INFLAMMATION ,SINGLE nucleotide polymorphisms ,GENETIC polymorphisms ,AUTOIMMUNE diseases ,SEVERITY of illness index ,COMPARATIVE studies ,RHEUMATOID arthritis ,GENOTYPES ,T cells ,STATISTICAL correlation - Abstract
Background: Rheumatoid arthritis (RA) is an incessant synovial inflammation of an autoimmune origin, destroying articular cartilages and bones. Galectins are an evolutionarily conserved family of immune-modulatory animal lectins detected in a number of immune cells like T cells, fibroblasts and macrophages. Galectin 9 (Gal-9) has been the subject of many studies for being linked to regulation of both innate and adaptive immune reactions. The objective of the study was to evaluate the link between the Galectin-9 gene (LGALS9) polymorphisms and the susceptibility of RA in Egyptian patients, as well as, detection of the serum level of Gal-9 in RA and its association with LGALS9 polymorphisms, the activity of RA and radiological damage. Methods: A study of 85 participants; group (I): 60 RA cases and group (II): 25 apparently healthy subjects. RA Disease activity index (DAS-28) and Larsen index score were assessed. LGALS9 gene and serum Gal-9 were investigated. Results: rs4239242 TT genotype and T allele occurred more frequently in RA cases than controls with a significant difference (P = 0.006; P < 0.001 respectively). Gal-9 level was significantly higher among RA cases than control group (P = 0.017). The Gal-9 level showed negative significant correlations with DAS-28 and Larsen score (P < 0.001). Conclusion: RA is strongly linked to genetic alterations in the LGALS9 gene and the single nucleotide polymorphism (SNP) rs4239242 TT genotype in the Egyptian population. RA cases in remission or those with low disease activity had higher levels of serum Gal-9 in comparison to cases with moderate and high disease activity and this would be promising in the future of RA treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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