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- 저자 : Maha Mohamed Saber (검색결과 1 건)
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Doaa Mohamed El Demerdash,Maha Mohamed Saber,Alia Ayad,Kareeman Gomaa,Mohamed Abdelkader Morad 대한혈액학회 2024 Blood Research Vol.59 No.1
Background Immune thrombocytopenia (ITP) is characterized by immune response dysregulations. Cytotoxic T lymphocyte‐ associated antigen‐4 (CTLA‐4) plays a central role in immune checkpoint pathways and preventing autoimmune diseases by regulating immune tolerance. We aimed to explore the potential association between CTLA-4 gene polymorphisms and ITP as well as study their impact on the response to therapy. Methods We investigated two CTLA-4 single‐nucleotide polymorphisms (SNPs; rs: 231775 and rs: 3087243) using real-time PCR as well as the plasma levels of CTLA-4 by ELISA in 88 patients with ITP and 44 healthy participants (HC). Results CTLA-4 (rs: 3087243) A > G polymorphism analysis showed most HC had the homozygous AA genotype, which was statistically significant compared to patients with ITP. Plasma levels of CTLA4 were statistically lower in patients with acute ITP. There was no correlation between CTLA-4 (rs: 231775 and rs: 3087243) A/G SNPs were not correlated to the response to all lines of therapy assessed (corticosteroids, thrombopoietin receptor agonists, splenectomy, and rituximab). Conclusion CTLA-4 CT 60 A/G may affect the susceptibility of ITP, but both CTLA-4 + 49 A/G and CT60 A/G did not impact the response of patients with ITP to different lines of therapy.
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