Association of SNP-SNP interactions of surfactant protein genes with severity of respiratory syncytial virus infection in children

被引:0
|
作者
Gandhi, Chintan K. [1 ]
Depicolzuane, Lynnlee C. [1 ]
Chen, Chixiang [2 ]
Roberts, Catherine M. [1 ]
Sicher, Natalie [1 ]
Wegerson, Katelyn Johnson [1 ]
Thomas, Neal J. [1 ]
Wu, Rongling [2 ]
Floros, Joanna [1 ,3 ]
机构
[1] Penn State Coll Med, Dept Pediat, Hershey, PA 17033 USA
[2] Penn State Coll Med, Dept Publ Hlth Sci, Hershey, PA USA
[3] Penn State Coll Med, Dept Obstet & Gynecol, Hershey, PA 17033 USA
基金
美国国家卫生研究院;
关键词
respiratory syncytial virus; surfactant protein genetic variants; SNP-SNP interactions; HUMAN SP-A; INNATE HOST-DEFENSE; SP-D LOCI; SP-B; DISTRESS-SYNDROME; YOUNG-CHILDREN; INFANTS; DISEASE; POLYMORPHISMS; NIRSEVIMAB;
D O I
10.1152/physiolgenomics.00045.2024
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The severity of respiratory syncytial virus (RSV) may be linked to host genetic susceptibility. Surfactant protein (SP) genetic variants have been associated with RSV severity, but the impact of single-nucleotide polymorphism (SNP)-SNP interactions remains unexplored. Therefore, we used a novel statistical model to investigate the association of SNP-SNP interactions of SFTP genes with RSV severity in two- and three-interaction models. We analyzed available genotype and clinical data from prospectively enrolled 405 children diagnosed with RSV, categorizing them into moderate or severe RSV groups. Using Wang's statistical model, we studied significant associations of SNP-SNP interactions with RSV severity in a case-control design. We observed, first, association of three interactions with increased risk of severe RSV in a two-SNP model. One intragenic interaction was between SNPs of SFTPA2, and the other two were intergenic, involving SNPs of hydrophilic and hydrophobic SPs alone. We also observed, second, association of 22 interactions with RSV severity in a three-SNP model. Among these, 20 were unique, with 12 and 10 interactions associated with increased or decreased risk of RSV severity, respectively, and included at least one SNP of either SFTPA1 or SFTPA2. All interactions were intergenic except one, among SNPs of SFTPA1. The remaining interactions were either among SNPs of hydrophilic SPs alone (n = 8) or among SNPs of both hydrophilic or hydrophobic SPs (n = 11). Our findings indicate that SNPs of all SFTPs may contribute to genetic susceptibility to RSV severity. However, the predominant involvement of SFTPA1 and/or SFTPA2 SNPs in these interactions underscores their significance in RSV severity.
引用
收藏
页码:691 / 697
页数:7
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