Table 2 Steroid hormone receptors, cytokeratins, and adhesion molecules in primary breast cancer with known involvement of the brain and CNS metastases from breast cancer

From: Predominance of the basal type and HER-2/neu type in brain metastasis from breast cancer

 

Primary breast cancer (n=44)a

CNS metastases (n=85)a

 

Positive (%)

Negative (%)

Positive (%)

Negative (%)

Receptors

 ER

14 (32)

30 (68)

29 (34)

56 (66)

 PR

11 (25)

33 (75)

15 (18)

70 (82)

 Her-2/neu

14 (32)

30 (68)

29 (34)

56 (66)

 EGFR

7 (16)

37 (84)

35 (41)

50 (59)

Cytokeratins

 CK 5/14

13 (30)

31 (70)

22 (26)

61 (74)

 CK 18

29 (67)

14 (32)

82 (98)

2 (2)

 CK 19

43 (100)

0

80 (96)

3 (4)

Adhesion molecules

 E-cadherin

35 (83)

7 (17)

76 (90)

8 (10)

β-Catenin

37 (86)

6 (14)

64 (76)

20 (34)

  1. CK, cytokeratin; EGFR, epidermal growth factor receptor; ER, oestrogen receptor; PR, progesterone receptor.
  2. aSome of the markers were applied to one or two samples less than the complete series.