Table 4 Ontology analysis of genes associated with rapid OA progressor DNA methylation models.

From: A pilot study of peripheral blood DNA methylation models as predictors of knee osteoarthritis radiographic progression: data from the Osteoarthritis Initiative (OAI)

Canonical pathway

p-value

Genes associated

Antigen presentation

7.08E-04

CIITA,HLA-DPA1,HLA-DPB1,PSMB8,PSMB9,TAP2

AMPK signaling

1.05E-03

AK8,CFTR,CHRM2,CHRNA2,CHRNA9,EEF2,FOXG1,INS,PDPK1,PPM1E,PRKACB,RAB7A,RPTOR,SMARCA4,SMARCD3

Sonic hedgehog signaling

9.33E-03

GLIS1,GLIS2,PRKACB,SUFU

Synaptogenesis Signaling Pathway

1.58E-02

AP2A2,CACNB4,CDH22,CDH23,CDH4,EIF4EBP3,EPHA8,EPHB3,FGR,GRIN2B,PRKACB,SHC2,STX1B,SYN2,SYT15,SYT5

Aryl Hydrocarbon Receptor Signaling

1.95E-02

ALDH1A3,ARNT,CDK6,CDKN2A,NCOA2, NR2F1,RXRG,SMARCA4,TP73

Endocannabinoid Neuronal Synapse Pathway

2.75E-02

CACNB4,CACNG3,CACNG8,CNR2,GNG7,GRIN2B,PRKACB,PTGS2

Autophagy

2.82E-02

ATG7,CTSO,LAMP1,SQSTM1,WIPI1

Upstream regulator

Molecule type

p-value

Number of associated genes

PITX2

transcription regulator

1.34E-05

14

Bvht

long noncoding RNA

5.48E-05

10

histone H3

group

6.93E-05

29

histone H4

group

9.63E-05

14

miR-141

microRNA

1.91E-04

9

ASCL1

transcription regulator

3.09E-04

10

miR-9

microRNA

3.37E-04

5

LHX6

transcription regulator

4.42E-04

5

miR-137

microRNA

8.23E-04

2

BMP2

growth factor

8.96E-04

15