Vitamin D related genes in lung development and asthma pathogenesis

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Vitamin D related genes in lung development and asthma pathogenesis

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Title: Vitamin D related genes in lung development and asthma pathogenesis
Author: Kho, Alvin T; Sharma, Sunita; Qiu, Weiliang; Gaedigk, Roger; Klanderman, Barbara; Niu, Simin; Anderson, Chris; Leeder, James S; Weiss, Scott T; Tantisira, Kelan G

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Citation: Kho, Alvin T, Sunita Sharma, Weiliang Qiu, Roger Gaedigk, Barbara Klanderman, Simin Niu, Chris Anderson, James S Leeder, Scott T Weiss, and Kelan G Tantisira. 2013. “Vitamin D related genes in lung development and asthma pathogenesis.” BMC Medical Genomics 6 (1): 47. doi:10.1186/1755-8794-6-47.
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Abstract: Background: Poor maternal vitamin D intake is a risk factor for subsequent childhood asthma, suggesting that in utero changes related to vitamin D responsive genes might play a crucial role in later disease susceptibility. We hypothesized that vitamin D pathway genes are developmentally active in the fetal lung and that these developmental genes would be associated with asthma susceptibility and regulation in asthma. Methods: Vitamin D pathway genes were derived from PubMed and Gene Ontology surveys. Principal component analysis was used to identify characteristic lung development genes. Results: Vitamin D regulated genes were markedly over-represented in normal human (odds ratio OR 2.15, 95% confidence interval CI: 1.69-2.74) and mouse (OR 2.68, 95% CI: 2.12-3.39) developing lung transcriptomes. 38 vitamin D pathway genes were in both developing lung transcriptomes with >63% of genes more highly expressed in the later than earlier stages of development. In immortalized B-cells derived from 95 asthmatics and their unaffected siblings, 12 of the 38 (31.6%) vitamin D pathway lung development genes were significantly differentially expressed (OR 3.00, 95% CI: 1.43-6.21), whereas 11 (29%) genes were significantly differentially expressed in 43 control versus vitamin D treated immortalized B-cells from Childhood Asthma Management Program subjects (OR 2.62, 95% CI: 1.22-5.50). 4 genes, LAMP3, PIP5K1B, SCARB2 and TXNIP were identified in both groups; each displays significant biologic plausibility for a role in asthma. Conclusions: Our findings demonstrate a significant association between early lung development and asthma–related phenotypes for vitamin D pathway genes, supporting a genomic mechanistic basis for the epidemiologic observations relating maternal vitamin D intake and childhood asthma susceptibility.
Published Version: doi:10.1186/1755-8794-6-47
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