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Table 2 DNA Methylation of probes located near transcription start sites of selected genes associated in endothelial function and corresponding gene expression levels

From: Variable promoter methylation contributes to differential expression of key genes in human placenta-derived venous and arterial endothelial cells

Selected genes showing changes in both promoter methylation and gene expression

Gene symbol

Description

Gene expression LogFC (HPAEC ‒ HPVEC

Average β of HPAEC ‒HPVEC

Probes located in promoter region / total number of probes*

NOS3

Nitrix Oxide Synthase

-1.233

0.314

6/28 (21%)

vWF

von Wildebrand Factor

-2.523

0.124

4/38 (11%)

MGP

Matrix Gla protein

-3.202

0.225

1/3 (33%)

GJA5

Connexin40

-3.434

0.122

7/15 (47%)

APOLD1†

apolipoprotein L domain containing 1 [Homo sapiens]

-0.061

0.684

7/32 (22%)

HIF3A†

Hypoxia Inducible Factor 3, alpha subunit

-0.599

-0.161

8/23 (35%)

EphB1†

Ephrine type-B receptor 1

1.050

0.284

2/36 (6%)

ANGPTL†

Angiopoietin-like 2

0.768

-0.178

2/6 (33%)

SELE†

E-Selectin

0.934

0.165

2/3 (67%)

FLT1 (VEGFR1) †

Vascular Endothelial Growth Factor Receptor 1

0.930

0.333

3/28 (11%)

COL6A3

Collagen, type VI, alpha 3

4.117

-0.128

9/53 (17%)

HSD11B1

Hydroxysteroid (11-beta) Dehydrogenase 1

1.092

-0.177

8/9 (89%)

VEGFC

Vascular Endothelial Growth Factor C

0.662

-0.101

5/13 (38%)

HGF

Hepatocyte Growth Factor (hepapoietin A; scatter factor)

3.973

-0.092

7/10 (70%)

ANGPT1

Angiopoietin 1

1.172

-0.210

2/16 (13%)

Genes showing expression changes but no changes in DNA methylation

Gene symbol

Description

Gene expression LogFC (HPAEC ‒ HPVEC

Average β of HPAEC ‒HPVEC

Probes located in promoter region / total number of probes*

ARG2

Arginine 2

0.445

<0.001

11/15 (73%)

DLL1

Delta like protein 1 precursor

0.077

0.005

12/38 (32%)

JAG1

Jagged 1 precursor

0.605

<0.001

10/24 (42%)

JAG2

Jagged 2 precursor

0.369

<0.001

8/47 (17%)

KDR (VEGFR2)

Kinase Insert Domain Receptor

1.552

0.003

9/16 (56%)

HEY2

hairy/enhancer‒of‒split related with YRPW motif 2

1.506

<0.001

11/21 (52%)

NOTCH

neurogenic locus notch homolog protein 4 preproprotein

0.429

0.024

3/160 (2%)

EphB2

neurogenic locus notch homolog protein 4 preproprotein

0.262

0.007

5/46 (11%)

NRP1

Neuropilin 1

0.529

0.002

6/29 (21%)

EphB4

Ephrine type‒B receptor 4

0.732

<0.001

7/29 (24%)

EphB4

Intercelluar adhesion molecule‒2

0.808

0.029

11/15 (73%)

  1. * denotes number of probes located near promoter regions of each gene where highly differential DNA methylation patterns were detected between two cell types out of total numbers of probes associated with each gene. † denotes probes where strong DNA methylation differences and gene expression patterns were detected but not inverse relationship. It may indicate there exists other regulatory regions or gene expression is regulated by epigenetic mechanism other than DNA methylation.