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Thromb Haemost 2012; 107(01): 30-36
DOI: 10.1160/TH11-06-0425
Blood Coagulation, Fibrinolysis and Cellular Haemostasis
Schattauer GmbH

Impact of polymorphisms in genes involved in autoimmune disease on inhibitor development in Chinese patients with haemophilia A

Yeling Lu
1   Laboratory Diagnostic Department, Ruijin Hospital affiliated to Medical College of JiaoTong University, Shanghai, China
,
Qiulan Ding
1   Laboratory Diagnostic Department, Ruijin Hospital affiliated to Medical College of JiaoTong University, Shanghai, China
,
Jing Dai
1   Laboratory Diagnostic Department, Ruijin Hospital affiliated to Medical College of JiaoTong University, Shanghai, China
,
Hongli Wang
2   Shanghai Institute of Hematology, Ruijin Hospital affiliated to Medical College of JiaoTong University, Shanghai, China
,
Xuefeng Wang
1   Laboratory Diagnostic Department, Ruijin Hospital affiliated to Medical College of JiaoTong University, Shanghai, China
› Author Affiliations
Further Information

Publication History

Received: 27 June 2011

Accepted after major revision: 14 October 2011

Publication Date:
20 November 2017 (online)

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Summary

One of the most severe and important complication in the treatment of haemophilia A (HA) patients is the formation of inhibitors. The mechanism that leads to factor (F)VIII inhibitor formation is complicated. Both genetic and environmental factors have been mentioned to play decisive roles. Recently, polymorphisms in the genes encoding interleukin-10 (IL-10), tumour necrosis factor-alpha (TNF-α), cytotoxic T-lymphocyte antigen-4 (CTLA-4), have been suggested to be contributing determinants of the inhibitor risk. In order to investigate the influence of the single nucleotide polymorphisms (SNPs) in the genes encoding for cytokines to the inhibitors development in Chinese HA patients, we genotyped 10 SNPs with high heterozygote rates in Chinese and a CA repeat microsatellite at the gene loci IL-10 as well in a separate, unrelated case-controlled cohort of 122 affected HA patients; 63 with inhibitors and 59 without inhibitors. The particular SNPs included in this study were as follows: –592C/A and –819C/T in IL-10, –590C/T in IL-4, –318C/T and 49A/G in CTLA-4, –827C/T in TNF-α, –1112C/T and 2044G/A in IL-13, 874A/T in interferon (IFN)-γ and –295T/C in IL-16. Our results demonstrated that –819T and –592A alleles in IL-10 were observed more frequently in patients with inhibitors. This indicated that –819C/T and –592A/C in IL-10 may influence the inhibitors development in HA patients. Furthermore, we concluded that the haplotype in IL-10 (TA, CA, CC at positions –819 and –582, respectively) may predispose FVIII inhibitor development in HA patients. In conclusion, the data reported in our study clearly highlight the participation of IL-10 in inhibitors formation in Chinese HA patients.

Keywords

Haemophilia A - inhibitors - polymorphisms - cytokine
 

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