Table 1

Clinical features of tumors, immunohistochemistry of tru-cut core biopsies before chemotherapy, and reverse-transcriptase-mediated polymerase chain reaction (RT-PCR) after chemotherapy



Number of





c494



MDR1
Histology
Size
invaded nodes
erb
p53
Ki67 (%)
ER
PR
MDR1
LRP
Chemotherapy
Response
(RT-PCR)

Lobular
8.0
32
0
0
30
0
0


FAC4
SD
0
Ductal
7.0
31
1
1
60
0
0


Ttere-ADM4
PR
1
Ductal
6.0
21
1
1
30
1
1

1
FAC4
PR
1
Ductal
3.5 (T4b)
20
1
0
5
0
0
0
1
FAC3
PR
1
Ductal
6.0
20
0
0
35
0
0
1
1
FAC4
SD
1
Lobular
7.0
18
0
0
20
1
1


FAC4
PR
0
Ductal
3 (T4b)
16
0
0
30
1
1
0
1
FAC4
PR
1
Ductal
Diffuse
15
0
0
20
0
0


FAC4
PR
0
Lobular
Diffuse
11
0
0
80
1
1
1
1
FAC6
PR
1
Ductal
2.2 (T4b)
10
0
1
30
0
0
0
1
FAC4
PR
0
Ductal
7.0
10
0
0
35
1
0
1
1
FAC4
PR
1
Ductal
3 (T4b)
10
1
1
20
1
1


FAC4
PR
Failed
Ductal
5.0
9
1
0
20
0
0


FAC4
SD
Failed
Ductal
2.2+1.3
9
1
0
50
1
1
0
1
FAC4
PR
1
Ductal
4.0 (T4b)
8
1
1

1
1


FAC4
PR
0
Lobular
3.0
8
0
0
2
1
1

0
FAC4
SD
0
Ductal
Diffuse
7
1
0
20
1
0

1
FAC4
SD
1
Ductal
8.0
7
1
1
50
0
0
1
1
FAC4
CCR
1
Ductal
5.0 (T4b)
5
0
0
5
0
0


FAC3
PR
0
Ductal
Diffuse
4
0
0
50
1
0

1
FAC4
PR
1
Ductal
10.0
3
0
0
80
0
0
1

FAC3
PR
Failed
Ductal
6.0
3
1
0
40
0
0

1
FAC4
SD
0
Ductal
4.5 (T4b)
2
0
0
30
1
1


FAC6
SD
1
Ductal
2.5
2
0
0
no
0
0


FAC4
PR
Failed
Ductal
10.0
2
0
1
60
0
0


FAC4
CCR
1
Ductal
4.5+2.0
2
0
0
25
1
1
0
0
CMF4
PR
0
Ductal
5.0
2
1
1
40
1
0
0

FAC4
PR
0
Ductal
3.5
2
0
0
15
1
1
0
1
FAC4
SD
0
Ductal
3.0
2
0
1
35
0
0

1
FAC4
SD
0
Ductal
2.0
2
0
0
30
1
0

1
FAC4
PR
1
Ductal
2.6+2.3
1
0
0
40
1
1


FAC3
PR
1
Ductal
3.5
1
0
0
15
1
1
1
1
FAC4
PR
1
Undiff.
6.0
1
0
1
45
0
0


FAC6
SD
1
Lobular
6.0
1
0
0
10
1
1
0
0
FAC4
PR
0
Ductal
3.0
1
0
1
70
0
0
1
1
FAC2
PR
1
Ductal
5+2
0
1
1
20
0
1


FAC3
PR
Failed
Ductal
3.5
0
1
0
12
0
0
0
0
FAC3
PR
0
Ductal
10.0
0
0
1
15
0
0


FAC5
SD
0
Ductal
6.0
0
0
1
15
1
1


FAC4
PR
1
Lobular
5.0
0
0
0
10
1
1
1
0
FAC4
PR
0
Ductal
5.0
0
0
0
10
1
1


FAC4
PR
0
Ductal
4.0
0
0
0
10
0
0
0
0
FAC4
PR
0
Ductal
5.0
0
0
0
10
1
1
0
1
FAC4
PR
ND
Ductal
6.0
0
1
1
25
1
1


FAC4
PR
1
Ductal
2.0 (T4a)
0
1
1
30
1
1


FAC4
SD
0
Ductal
5.0
0
0
0
25
1
0
0
0
FAC4
PR
0
Ductal
5.0
0
0
0
15
1
1
0
0
FAC4
PR
0
Ductal
6.0
0
0
1
80
0
0
0
1
FAC4
PR
1
Ductal
3.6
0
0
0
10
1
1
1
1
FAC4
SD
0
Ductal
3.5
0
0
1
15
0
0

1
FAC4
PR
1
Ductal
4.0
0
0
0
20
1
0

1
FAC4
PR
0
Ductal
5.0
0
0
0
10
1
1

1
FAC4
PR
0

Responses: 1, positive, 0, negative. Positivity levels: MDR1 (c494), only membrane staining in more than 10% of tumor cells; LRP, more than 20% reactive cells (for details, see the text). CCR, complete clinical response; PR, partial response; SD, stable disease; F, 5-fluorouracyl; A, doxorubicin (adriamycin); C, cyclophosphamide; M, methotrexate; undiff, undifferentiated; ND, not done; Ttere, taxotere.

Schneider et al. Breast Cancer Res 2001 3:183   doi:10.1186/bcr293