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European Journal of Pediatrics

, Volume 170, Issue 4, pp 503–509 | Cite as

Association between toll-like receptor 10 (TLR10) gene polymorphisms and childhood IgA nephropathy

  • Hae Jeong Park
  • Won-Ho Hahn
  • Jin-Soon Suh
  • Mi-Ja Kim
  • Sung Wook Kang
  • Jong Seok Lee
  • Jong Woo Kim
  • Joo-Ho Chung
  • Byoung-Soo Cho
Original Paper

Abstract

Toll-like receptors (TLRs) play an important role in the induction and regulation of the innate immune system and adaptive immune responses. TLR10 gene polymorphisms have been reported to be associated with a range of immune-related diseases. In this study, we investigated the association of TLR10 gene polymorphisms with immunoglobulin A nephropathy (IgAN) in Korean children. To examine the association, we genotyped one promoter single nucleotide polymorphisms (SNP) [rs10004195 (−113T/A)] and three missense SNPs [rs11096957 (Asn241His), rs11096955 (Ile369Leu), and rs4129009 (Ile775Val)] using direct sequencing in 199 IgAN patients and 289 control subjects. Our case–control analysis showed that rs10004195 was associated with IgAN (codominant model, p = 0.016 in TT vs. TA; p = 0.044 in TT vs. AA; dominant model, p = 0.0068). In addition, when comparing the proteinuria level of IgAN patients according to the genotypes of each SNP, we found that in dominant model of rs1004195, the level of proteinuria of patients with TA or AA genotypes (median, 4.01 mg/m2/h) was higher than that of patients with TT genotype (2.00 mg/m2/h, p = 0.033). In conclusion, these results suggest that TLR10 gene may be associated with susceptibility to IgAN in Korean children.

Keywords

Immunoglobulin A nephropathy Toll-like receptor 10 Single nucleotide polymorphism Proteinuria 

Notes

Acknowledgment

This work was supported by a grant from the Kyung Hee University in 2009 (KHU-20100131).

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Hae Jeong Park
    • 1
  • Won-Ho Hahn
    • 2
  • Jin-Soon Suh
    • 2
  • Mi-Ja Kim
    • 1
  • Sung Wook Kang
    • 1
  • Jong Seok Lee
    • 3
  • Jong Woo Kim
    • 1
  • Joo-Ho Chung
    • 1
  • Byoung-Soo Cho
    • 2
  1. 1.Kohwang Medical Research Institute, School of MedicineKyung Hee UniversitySeoulRepublic of Korea
  2. 2.Department of Pediatrics, East West Kidney Diseases Research Institute, School of MedicineKyung Hee UniversitySeoulRepublic of Korea
  3. 3.Department of Emergency Medicine, School of MedicineKyung Hee UniversitySeoulRepublic of Korea

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