4 research outputs found
Additional file 1 of Bronchial epithelial gene expression and interstitial lung abnormalities
Additional file 1: Table S1. Institutional Review Board committee names and project approval numbers for each center for the DECAMP Study
Overlap of genetic risk between interstitial lung abnormalities and idiopathic pulmonary fibrosis
Rationale
Interstitial lung abnormalities (ILA) are associated with the highest genetic risk locus for IPF;
however, the extent to which there is additional overlap with IPF, or unique associations among
those with ILA is not known.
Objectives
To perform a genome-wide association study (GWAS) of ILA.
Methods: ILA and the subpleural-predominant subtype were assessed on chest computed
tomography (CT) scans in the AGES, COPDGene, Framingham Heart, ECLIPSE, MESA, and
SPIROMICS studies. We performed a GWAS of ILA in each cohort and combined the results
using a meta-analysis. We assessed for overlapping associations in independent GWASs of
IPF.
Measurements and Main Results
Genome-wide genotyping data were available in 1,699 ILA cases and 10,274 controls. The
MUC5B promoter variant rs35705950 was significantly associated with both ILA (p=2.6x10-27)
and subpleural ILA (p=1.6x10-29). We discovered novel genome-wide associations near IPO11
(rs6886640, p=3.8x10-8
) and FCF1P3 (rs73199442, p=4.8x10-8
) with ILA, and HTRE1
(rs7744971, p=4.2x10-8
) with subpleural-predominant ILA. These novel associations were not
associated with IPF. Of 12 previously reported IPF GWAS loci, 5 (DPP9, DSP, FAM13A, IVD,
and MUC5B) were significantly associated (p<0.05/12) with ILA.
Conclusions
In a GWAS of ILA in six studies, we confirmed the association with a MUC5B promoter variant
and found strong evidence for an effect of previously described IPF loci; however, novel ILA
associations were not associated with IPF. These findings highlight common and suggest
distinct genetically-driven biologic pathways between ILA and IPF
Additional file 1 of African-specific alleles modify risk for asthma at the 17q12-q21 locus in African Americans
Additional file 1. Contains Supplementary Methods, Supplementary Tables (Table S1-10), and Supplementary Figures (Fig. S1-14), and corresponding references. Supplementary Methods. Descriptions of Populations. Building Consensus Sequences in the Critical Region. Table S1. Characteristics of the APIC and URECA Cohorts. Table S2. Predicted Haplotypes in CREW. Table S3. Haplotype Frequencies in Whole Genome Sequences. Table S4. Worldwide Frequencies of African-specific SNPs. Table S5. cis-eQTL Results for SNPs in or near GSDMA. Table S6. ENCODE Cell Lines and DNAse Clustering at pcHi-C Region. Table S7. pcHi-C Target Genes for African-specific Variants in Airway Epithelial Cells. Table S8. pcHi-C Target Genes for African-specific Variants in Airway Immune Cells. Table S9. Quantitative Trait Association Results in the APIC and URECA Cohorts. Table S10. African American Adult Asthmatics by Severity and Genotype. Figure S1. Overview of Study Design. Figure S2. ChromoPainter Analysis. Figure S3. ChromoPainter Visualization of Haplotype Breakpoints. Figure S4. ChromoPainter Display of the 17q12-q21 Region in Haplotype 4 Homozygotes. Figure S5. Ancestry PCA plots for APIC and URECA Children. Figure S6. eQTL Box Plots of rs28623237 Genotype and GSDMA Expression in CAAPA2. Figure S7. LD Plot of African-specific Variants and SNPs in or near GSDMA. Figure S8. eQTL Box Plots of rs113282230 Genotype and GSDMA Expression Conditioned on GSDMA SNPs. Figure S9. eQTL Violin Plots of rs235480 and rs1132828830 Genotypes on GSDMA and GSDMB Expression. Figure S10. LD Plot of the African-specific Variants and SNPs in the Core Region of The 17q12-q21 Locus. Figure S11. Chromatin Annotations in the Region Encoding the African-specific SNPs in ENCODE Cell Lines. Figure S12. eGenes for rs113282230 in Immune Cells. Figure S13. pcHi-C Data for rs113282230 in Immune Cells. Figure S14. Rs113282230 Genotype Effect on Asthma Prevalence by rs2305480 AA And GG Genotypes in APIC and URECA
Additional file 2 of African-specific alleles modify risk for asthma at the 17q12-q21 locus in African Americans
Additional file 2. Region-wide eQTL results in airway epithelial cells from 189 African American children in the URECA cohort