Table 2 Differentially methylated genes validated by targeted sequencing

From: Whole-genome DNA methylation status associated with clinical PTSD measures of OIF/OEF veterans

Gene symbol

CpG location

Methylation Status

Brief recent literature review (human studies)

AKT1

Chr14:

105262368 (TSS−287)

105262438 (TSS−357)

105262494 (TSS−413)

Associated network is vulnerable to stress-induced anxiety and depression, major comorbidities of PTSD25, 26

BDNF

Chr11: 27744245 (TSS−639)

BDNF expression was high in human PTSD serum27 and low in PTSD plasma samples.28 However, the plasma result was not validated in a subsequent study29

CNR1

Chr6:

88876636 (TSS−868)

88876636 (TSS−1067)

PTSD is significantly associated with SNP haplotype (for C-A and C-G) of CNR130

CREB1

Chr2: 208394337 (TSS+277)

Altered the gene expressions of CREB family occurred in PTSD patients’ monocytes31

DMRTA2

Chr1: 50890130 (TSS−1010)

EFS

Chr14: 23835035 (TSS−192)

ELK1

ChrX: 47510240 (TSS−236)

ETS-2

Chr21:

40177278 (TSS+47)

40177531 (TSS+222)

ETS-2 gene family is responsible for growth control, transformation and developmental programs that influence telomere shift and premature aging. Both complications are PTSD-associated32

GATA3

Chr10: 8096093 (TSS+226876)

HES4

Chr1:

936030 (TSS−477)

936301 (TSS−748)

LHX1

Chr17: 35292083 (TSS+2687)

MET

Chr7:

116311962 (TSS+495)

116312201 (TSS+256)

NFATC4

Chr14

24836169 (TSS+24)

24836183 (TSS+38)

24836217 (TSS+72)

This is an immune-associated gene

NR2E1

Chr6:

198486189 (TSS+1024)

198486237 (TSS+976)

NR2E1 deletion produces a highly aggressive phenotype33

PAX5

Chr9: 37036906 (TSS−2429)

PDGFB

Chr22:

39638278 (TSS−1363)

39638353 (TSS−1438)

39638364 (TSS−1449)

PSD

Chr10:

104178908 (TSS−6)

104178910 (TSS−8)

104178916 (TSS−14)

104178930 (TSS−28)

104178932 (TSS−30)

PTTG1IP

Chr21: 46294077 (TSS−258)

TRERF1

Chr6: 42420444 (TSS−660)

  1. Abbreviations: ↑, hypermethylated; ↓, hypomethylated; PTSD, post-traumatic stress disorder;
  2. SNP, single-nucleotide polymorphism; TSS, transcription start site.
  3. (i) Whole-genome array from Agilent, probing of the training set (48/51 PTSD+/−); (ii) targeted bisulfite-sequencing assay (Zymo Research) probing of the training set (48/51 PTSD+/−).