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Table 5 Relationship between the mRNA expression levels and DNA amplification levels of the 20 markedly upregulated genes

From: Expression analysis of mitotic spindle checkpoint genes in breast carcinoma: role of NDC80/HEC1 in early breast tumorigenicity, and a two-gene signature for aneuploidy

Genes

Chromosome location

Normal breast tissues

(n = 6)

Breast tumors

(n = 39)

Unamplified tumors

Amplified tumors

pa

    

Number

mRNA level

Number

mRNA level

 

CDC20

1p34.1

1,0 (0,61-1,28)

2,89 (0,39-22,65)b

38 (97,5%)

2,99 (0,54-22,65)

1 (2,5%)

0,39

NS

NEK2

1q31,2-q41

1,0 (0,44-5,23)

28,41 (2,46-137,03)

12 (30,8%)

26,55 (2,66-51,92)

27 (69,2%)

28,41 (2,46-137,03)

NS

BUB1

2q14

1,0 (0,53-1,51)

5,52 (0,74-25,63)

36 (92,3%)

5,43 (0,74-25,63)

3 (7,7%)

6,39 (3,46-17,15)

NS

TACC3

4p16,3

1,0 (0,54-2,08)

7,32 (1,01-29,89)

38 (97,5%)

7,09 (1,01-29,89)

1 (2,5%)

15,32

NS

CENPE

4q21-q25

1,0 (0,02-2,06)

14,59 (0,08-61,89)

38 (97,5%)

14,64 (0,08-61,89)

1 (2,5%)

5,54

NS

CCNA2

4q25-q31

1,0 (0,56-1,90)

10,39 (2,20-37,31)

36 (92,3%)

10,12 (2,2-37,31)

3 (7,7%)

22,65 (3,81-32,82)

NS

CCNB1

5q12

1,0 (0,42-2,32)

4,18 (0,34-22,47)

34 (87,2%)

3,53 (0,34-18,96)

5 (12,8%)

8,88 (2,67-22,47)

0,01

UBD

6p21.3

1,0 (0,31-3,91)

4,75 (0,15-106,40)

32 (82,1%)

4,89 (0,15-106,40)

7 (17,9%)

2,93 (0,54-7,43)

NS

TTK

6q13-q21

1,0 (0,71-2,08)

6,72 (0,61-44,27)

37 (94,9%)

6,72 (0,61-44,27)

2 (5,1%)

15,91 (5,85-25,96)

NS

CDC2

10q21.1

1,0 (0,68-2,66)

9,52 (1,19-56,17)

34 (87,2%)

8,44 (1,19-56,17)

5 (12,8%)

17,47 (12,74-42,86)

0,03

ZWINT

10q21-q22

1,0 (0,62-1,97)

5,38 (1,08-20,70)

32 (82,1%)

4,44 (1,08-20,70)

7 (17,9%)

12,52 (4,46-18,27)

0,003

BUB1B

15q15

1,0 (0,53-1,69)

10,48 (1,35-32,33)

34 (87,2%)

9,05 (1,35-32,33)

5 (12,8%)

17,33 (10,48-27,28)

0,04

CCNB2

15q21.2

1,0 (0,64-1,95)

14,21 (2,00-68,51)

35 (89,7%)

10,15 (2,0-55,08)

4 (10,2%)

21,41 (19,34-68,51)

0,03

PLK

16p12.1

1,0 (0,60-1,87)

5,46 (0,69-35,59)

16 (41,0%)

4,49 (0,69-21,61)

23 (59,0%)

5,46 (1,24-35,59)

NS

AURKB

17p13.1

1,0 (0,90-2,08)

5,82 (0,00-64,52)

39 (100%)

5,82 (0-64,52)

0

-

-

BIRC5

17q25

1,0 (0,37-2,0)

14,84 (1,47-150,30)

27 (69,2%)

9,96 (1,47-49,07)

12 (30,8%)

32,31 (5,84-150,30)

0,0008

NDC80

18p11.31

1,0 (0,29-1,23)

6,28 (1,05-126,38)

34 (87,2%)

5,69 (1,05-27,22)

5 (12,8%)

27,32 (4,13-126,38)

0,03

TPX2

20q11.2

1,0 (0,59-1,48)

15,69 (1,65-117,11)

22 (56,4%)

10,26 (1,65-34,46)

17 (43,6%)

24,03 (5,45-117,11)

0,002

AURKA

20q13.2-q13.3

1,0 (0,36-1,33)

7,14 (1,46-34,22)

24 (61,5%)

5,08 (1,46-32,82)

15 (38,5%)

14,04 (3,40-34,22)

0,002

CCNB3

Xp11

1,0 (0,96-4,20)

5,65 (0,00-61,53)

33 (84,6%)

4,76 (0,00-61,53)

6 (15,4%)

11,58 (5,16-25,25)

NS

  1. aMann and Whitney's U Test: amplified breast tumors vs unamplified breast tumors. NS, non significant.
  2. bMedian (range) of gene mRNA levels. The mRNA levels of the tumor samples were normalized such that the median of the 6 normal breast tissues mRNA level was 1.