Table 3 Comparison of the PMR values of the 15-CpG island loci according to breast cancer subtype

From: Distinct patterns of promoter CpG island methylation of breast cancer subtypes are associated with stem cell phenotypes

Gene

PMR value (median (interquartile range))

P-valuea

 

Luminal A (n=36)

Luminal B (n=33)

Luminal–HER2 (n=30)

HER2 enriched (n=40)

Basal-like (n=40)

 

APC

0 (0–19.92)

27.63 (0–47.88)

15.68 (0–26.81)

1.49 (0–16.55)

0 (0)

<0.001

DLEC1

3.03 (0.01–10.84)

8.02 (0.22–20.11)

9.25 (1.21–17.11)

0.10 (0–9.77)

0 (0–0.01)

<0.001

GRIN2B

0 (0–5.60)

1.13 (0–18.58)

2.93 (0–16.68)

3.61 (0–17.46)

0 (0–0.65)

0.006

GSTP1

0.02 (0–1.31)

0.75 (0–5.61)

5.40 (1.09–16.62)

0 (0–8.79)

0 (0)

<0.001

HOXA1

18.19 (4.03–35.40)

37.21 (20.23–49.73)

23.08 (17.76–33.93)

20.02 (10.75–47.13)

0.01 (0–5.05)

<0.001

HOXA10

0.01 (0–1.79)

0.66 (0–14.50)

0.12 (0–1.99)

0 (0–5.51)

0 (0–0.71)

0.092

IGF2

0 (0–0.45)

0 (0–0.98)

0 (0–3.57)

0 (0–0.31)

0 (0–0.01)

0.064

MT1G

0 (0–2.14)

0.61 (0–6.90)

6.06 (0.11–13.81)

1.69 (0–7.45)

0.06 (0–1.41)

0.003

RARB

0.07 (0–1.70)

0.43 (0–16.0)

2.51 (0–20.33)

1.77 (0–8.75)

0.17 (0–1.71)

0.016

RASSF1A

19.95 (8.97–44.91)

27.43 (12.09–35.76)

17.67 (9.68–32.85)

14.75 (2.51–29.96)

0 (0–2.25)

<0.001

RUNX3

0 (0–4.67)

1.18 (0–6.20)

2.99 (0–7.11)

0 (0)

0 (0)

<0.001

SCGB3A1

0 (0–8.34)

0 (0–12.94)

8.24 (1.83–23.50)

0 (0–7.94)

0 (0)

<0.001

SFRP1

2.48 (0–16.53)

7.80 (1.51–44.88)

10.81 (2.52–23.50)

3.24 (0–10.66)

0.19 (0–1.20)

<0.001

SFRP4

0 (0–2.04)

0 (0–4.06)

0 (0–8.58)

0 (0–5.10)

0 (0–1.00)

0.205

TMEFF2

13.66 (5.01–25.45)

27.67 (7.41–39.29)

25.08 (15.82–37.77)

21.84 (6.26–45.93)

1.75 (0.52–5.72)

<0.001

  1. PMR, percentage of methylated reference.
  2. aP-values were calculated using the Kruskal–Wallis test.