Background
Kawasaki disease (KD) was one of the most common primary vasculitis. IVIG resistance was associated with an increased risk of coronary artery aneurysm. Accumulating evidences demonstrated that inflammatory gene polymorphisms might play important roles in IVIG resistance, and zinc finger proteins were closely related to immune inflammation regulation, but the effect of
ZNF112
/rs8113807 and
ZNF180
/rs2571051 on IVIG resistance in KD patients has not been reported.
Methods
A total of 996 KD patients were recruited, and the assay of TaqMan-real-time polymerase chain reaction was used for
ZNF112
/rs8113807 and
ZNF180
/rs2571051 genotyping. Odds ratio (OR) and 95% confidence interval (CI) were calculated for estimating the relationship between the polymorphisms of the both SNPs (
ZNF112
/rs8113807 and
ZNF180
/rs2571051) and the risk of IVIG resistance.
Results
Both of the
ZNF112
/rs8113807 CC/TC genotype and the
ZNF180
/rs2571051 TT/CT genotype increased the risk of IVIG resistance in KD (rs8113807: CC vs TT: adjusted OR = 1.83, 95% CI = 1.06–3.16, p = 0.0293; CC/TC vs TT adjusted: OR = 1.49, 95% CI = 1.10–2.02, p = 0.0094. rs2571051: TT vs CC adjusted: OR = 2.64, 95% CI = 1.62–4.29, p < 0.0001; TT/CT vs CC adjusted: OR = 2.14, 95% CI = 1.37–3.37, p = 0.0009; TT vs CC/CT adjusted: OR = 1.66, 95% CI = 1.22–2.27, p = 0.0014). Furthermore, the combinative analysis of risk genotypes in
ZNF112
/rs8113807 and
ZNF180
/rs2571051 showed that patients with two unfavorable genotypes were more likely to increase risk of IVIG resistance than those who carried with zero or one unfavorable genotypes (adjusted: OR = 1.68, 95% CI = 1.24–2.27, p = 0.0008).
Conclusion
Our findings enriched the genetic background of IVIG resistance risk in the KD development and suggested that the
ZNF112
/rs8113807 C-carrier and the
ZNF180
/rs2571051 T-carrier were associated with increased risk of IVIG resistance in KD patients in Chinese southern population.
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