Background
Methods
Patients and tissue specimens
Clinical-pathologic variables | n | DUSP-9 expression | χ2 | p | |
---|---|---|---|---|---|
Low | High | ||||
All cases
|
211
|
117
|
94
|
4.667
|
0.031
|
Male
|
140
|
85
|
55
| ||
Female
|
71
|
32
|
39
| ||
Age (yrs)
|
0.417
|
0.518
| |||
> 50
|
104
|
60
|
44
| ||
≤ 50
|
107
|
57
|
50
| ||
Pathologic stage
|
17.112
|
0.001
| |||
I
|
128
|
58
|
70
| ||
II
|
23
|
13
|
10
| ||
III
|
31
|
22
|
9
| ||
IV
|
29
|
24
|
5
| ||
Fuhrman Grade
|
14.492
|
0.002
| |||
I
|
39
|
28
|
11
| ||
II
|
123
|
72
|
51
| ||
III
|
34
|
10
|
24
| ||
IV
|
15
|
7
|
8
| ||
Tumor size (cm)
|
10.906
|
0.001
| |||
≤7
|
136
|
64
|
72
| ||
>7
|
75
|
53
|
22
| ||
T stage
|
14.914
|
0.001
| |||
T
1
|
135
|
63
|
72
| ||
T
2
|
35
|
21
|
14
| ||
T
3
, T
4
|
41
|
33
|
8
| ||
N stage
|
6.248
|
0.012
| |||
N0
|
184
|
96
|
88
| ||
N+
|
27
|
21
|
6
| ||
Metastasis
|
7.708
|
0.005
| |||
No
|
188
|
98
|
90
| ||
Yes
|
23
|
19
|
4
| ||
Recurrence
|
24.050
|
<0.001
| |||
No
|
181
|
88
|
93
| ||
Yes
|
30
|
29
|
1
|
Real-Time qPCR
Immunohistochemical assay
Statistical analysis
Results
Real-time quantitative RT-PCR analysis of DUSP-9 expression
Immunohistochemical analysis of the expression of DUSP-9 protein in 107 paraffin-embedded ccRCC samples (T) and the paired adjacent normal renal tissue (N)
Immunohistochemical analysis of DUSP-9 expression in 211 ccRCC samples (T) and its relationship with the clinical features
Survival analysis
Variables | Univariate analysis | Multivariate analysis | ||
---|---|---|---|---|
Hazard ratios (95% confidence interval) | p | Hazard ratios (95% confidence interval) | p | |
Tumor size
|
(3.339-15.178)
|
<0.001
|
(0.088-3.118)
|
0.478
|
T stage
|
(2.177-4.177 )
|
<0.001
|
(0.629-5.052)
|
0.276
|
N stage
|
(1.389-4.379 )
|
= 0.002
|
(0.438-3.119)
|
0.755
|
Metastasis
|
(2.705-11.837 )
|
<0.001
|
(0.100-6.355)
|
0.832
|
Fuhrman Grade
|
(35.53-630.43)
|
<0.001
|
(27.23-569.2)
|
<0.001
|
DUSP-9
|
(0.004-0.229 )
|
0.001
|
(0.088-3.118)
|
0.008
|