Table 4.
Gene Expression Pathways Significantly Associated with Risk Alleles for Significant Cystic Fibrosis Genome-Wide Association Study Loci
Chr | SNP rs Number | Pathway Identifier |
Genes (n) | Statistics |
Minor Allele | Risk Allele | Association with Risk Allele‡ | Genes with Gene-Level P Value <0.10 (Ordered by P Value)§ | ||
---|---|---|---|---|---|---|---|---|---|---|
Set | Name | P Value* | Q Value† | |||||||
11 | rs10742326 | CF-relevant custom pathways | COPD signature; PMID 23471465 | 66 | 0.0001 | 0.0035 | A | G | Decreased expression | MUC4, ATP10B, SAA2, TMPRSS11D, SLC26A2, SLC26A4, SLC5A8, SAA1, SAA4, IRAK3, C15orf48, SLCO1B3, SERPINB7, EPB41L2, TPRXL, TRIM31, CCDC81, MTNR1A |
11 | rs10742326 | CF-relevant custom pathways | Asthma nitric oxide gene cluster 3; PMID 25338189 | 48 | 0.0002 | 0.0046 | A | G | Decreased expression | DUOXA1, FER1L5, WDR90, C16orf93, STK36, ARHGAP33, CEP164, HGS, PDXDC2P, KIAA0895L, TMEM234, MAP4K4, FAM193B, FBXO31, LINC00479, SPPL2B, RAD9A, MYO15B |
11 | rs10742326 | CF-relevant custom pathways | CF MI Lasso; PMID 22466613 | 21 | 0.0005 | 0.0087 | A | G | Decreased expression | PROM1, SLC9A3, CD44, CTSB |
11 | rs10742326 | CF-relevant custom pathways | COPD up; PMID 23471465 | 49 | 0.0011 | 0.0153 | A | G | Decreased expression | MUC4, ATP10B, SAA2, TMPRSS11D, SLC26A2, SLC26A4, SLC5A8, SAA1, SAA4, IRAK3, C15orf48, SLCO1B3, TPRXL, TRIM31, MTNR1A |
11 | rs10742326 | MetaMiner cystic fibrosis–specific pathways (GeneGo) | CFTR-dependent regulation of ion channels in airway epithelium (normal and CF) | 33 | 0.0040 | 0.0605 | A | G | Decreased expression | ITPR3, ABCC9, WBP1, PRSS8, SLC9A3R1, GNA11, NEDD4, KCNN4, SCNN1A |
11 | rs10742326 | CFTR interactome pathways | Core increased dCF over WT; Table E6, 52 genes | 50 | 0.0337 | 0.0993 | A | G | Increased expression | PSMD3, PSMD4, UBXN1, PSMD8, PSMD11, PSMA2, LMAN2, UBAC2 |
6 | rs116003090 | HLA specific | HLA class II | 16 | 0.0626 | 0.0527 | C | C | Bidirectional | HLA-DQB1, HLA-DRB1‖, HLA-DRB4‖, HLA-DQA2‖, HLA-DQA1‖, HLA-DRB5, HLA-DOB‖, HLA-DQB2 |
6 | rs116003090 | CFTR interactome pathways | HDAC7 dCF; Table E13, 450 genes | 410 | 0.0202 | 0.0343 | C | C | Increased expression | RDX, APOL2, HSPH1, PPP2R2A, PPP2CA, DNAJA1, SLC25A22, SAMHD1, EZR, YWHAH, SPTLC2, HSPA8, ICAM1, LMNA, PHGDH, KRT7, YWHAE, DCTN2, GART, SFXN3, PPL, LGALS3BP, CDH1, TUBB6, PSMA4, ACTN4, TMEM40, RUVBL1, CAST, UBXN1, TPM4, TIMM50, HSPD1, KLHL22, PSMA6, LAMB3, ITGA3, TAPBP, VDAC2, ERAP1, TF, RAB18, PDXK, ILVBL, SFN, PSMA1, MARS, NCAPG2, AHSA1, YME1L1, CALR |
loT6hr dCF; Table E8, 618 genes¶ | ||||||||||
SAHA dCF; Table E11, 681 genes¶ | ||||||||||
6 | rs116003090 | CFTR interactome pathways | loT24hr dCF; Table E9, 199 genes | 175 | 0.0226 | 0.0343 | C | C | Increased expression | APOL2, HSPH1, PPP2CA, DNAJA1, YWHAH, HSPA8, KRT7, YWHAE, LMO7, LGALS3BP, TUBB6, ZW10, PSMA4, ACTN4, RUVBL1, TPM4, TIMM50, HSPD1, LAMB3, ERAP1, SFN, MARS |
loT24hr rev dCF; Table E10, 199 genes¶ | ||||||||||
6 | rs116003090 | CFTR interactome pathways | Core dCF specific; Table E5, 208 genes | 193 | 0.0344 | 0.0404 | C | C | Increased expression | TMEM165, SAMHD1, CBR1, SEC24C, C9orf167, ICAM1, DCTN2, SFXN3, CDH1, MX1, ISG15, ZW10, PSMA4, TMEM40, CAST, UBXN1, MX2, MOV10, LAMB3, ITGA3, RFC2, PPA1, VDAC2, PDXK, AHSA1, YME1L1 |
5 | rs57221529 | MetaMiner cystic fibrosis–specific pathways (GeneGo) | Cholesterol and sphingolipids transport/distribution to the intracellular membrane compartments (normal and CF) | 11 | 0.0002 | 0.0032 | G | A** | Increased expression | RAB9A, SCP2 |
5 | rs57221529 | HLA specific | HLA class II | 16 | 0.0320 | 0.0268 | G | A** | Increased expression | HLA-DMA, HLA-DRA, HLA-DMB, HLA-DOA, HLA-DRB1, HLA-DPB1, HLA-DPA1 |
5 | rs57221529 | HLA specific | HLA class I and class II | 30 | 0.0957 | 0.0554 | G | A** | Increased expression | HLA-DMA, HLA-DRA, HLA-DMB, HLA-DOA, HLA-DRB1, HLA-DPB1, HLA-DPA1 |
X | rs5952223 | KEGG: M00154 | Cytochrome c oxidase | 17 | 0.0007 | 0.0957 | T | C | Decreased expression | COX7A2L, COX6C, COX5B |
Definition of abbreviations: CF = cystic fibrosis; CFTR = cystic fibrosis transmembrane conductance regulator; COPD = chronic obstructive pulmonary disease; dCF = Phe508del; HDAC7 = histone deacetylase 7; KEGG = Kyoto Encyclopedia of Genes and Genomes database; MI = meconium ileus; PMID = PubMed reference number; SAHA = suberoylanilide hydroxamic acid; WT = wild type.
Pathways were limited to those with at least 10 but less than or equal to 200 genes. CF-relevant custom pathways were developed (46) using human gene counterparts (Table E8).
Significance Analysis of Function and Expression analysis used 10,000 permutations to establish significance thresholds (18).
Benjamini-Hochberg false discovery rate for pathway testing within each pathway set; Q values less than 0.15 were included.
Risk alleles may be associated with increased expression, decreased expression, or bidirectional expression of genes in pathway.
See Table E5, tab G, for an inclusive list of genes for these pathways; see Table E3 for gene Online Mendelian Inheritance in Man catalogue numbers.
For bidirectional pathways, genes with increased expression associated with CF genome-wide association study loci risk alleles are noted.
These pathways are statistically significant and carry robust overlap of genes with first-listed pathway; see Table E5, tab G, for a complete list of pathway genes.
For this study cohort, risk allele differs from that reported in broader CF genome-wide association studies (5).