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Table 2 Relationship between SUVmax and pAkt/pS6K protein densitometry results and pathological parameters

From: Clinically significant association between the maximum standardized uptake value on 18F-FDG PET and expression of phosphorylated Akt and S6 kinase for prediction of the biological characteristics of renal cell cancer

  

SUVmax in the primary tumor

Western blotting in primary tumor

  

Number=77

 

Number=77

pAkt (Ser-473)

pAkt (Thr-308)

pS6K (Ser-235/236)

  

mean ± S.D

P value

mean ± S.D

P value

mean ± S.D

P value

mean ± S.D

P value

Tissue

tumor

n=77

6.97 ± 5.96

 

n=77

3.91 ± 3.01

0.000001

2.83 ± 2.13

0.000009

2.43 ± 1.58

0.000021

non-tumor

  

n=77

1.00

1.00

1.00

Histological differentiation (Fuhrman grade)

G1

n=9

2.72 ± 0.66

0.000073

n=9

1.54 ± 0.57

0.000041

1.21 ± 0.36

0.000089

1.13 ± 0.15

0.000079

G2

n=32

3.90 ± 2.33

n=32

2.57 ± 2.03

2.03 ± 1.57

1.86 ± 1.08

G3

n=29

8.80 ± 3.79

n=29

5.16 ± 2.73

3.46 ± 1.85

2.81 ± 1.23

G4

n=7

18.67 ± 10.23

n=7

8.09 ± 3.49

6.00 ± 2.71

5.19 ± 2.07

pT stage

pT1-2

n=43

3.77 ± 2.02

0.000019

n=43

2.43 ± 1.74

0.000029

1.93 ± 1.49

0.000083

1.75 ± 0.95

0.000100

pT3-4

n=34

10.91 ± 6.82

n=34

5.83 ± 3.24

4.00 ± 2.27

3.31 ± 1.79

Microscopic vascular invasion

v0

n=28

3.33 ± 1.46

0.000061

n=28

2.08 ± 1.22

0.000100

1.67 ± 1.14

0.000200

1.60 ± 0.78

0.001000

v1

n=49

9.01 ± 6.55

n=49

4.97 ± 3.23

3.50 ± 2.28

2.91 ± 1.72

pN stage

N0

n=62

5.58 ± 5.80

0.000053

n=62

3.13 ± 2.54

0.000076

2.41 ± 2.00

0.000200

2.04 ± 1.31

0.000092

N1-2

n=15

12.38 ± 2.59

n=15

7.38 ± 2.45

4.68 ± 1.64

4.14 ± 1.56

Metastasis (cM stage)

M0

n=52

4.56 ± 3.59

0.000029

n=52

2.55 ± 2.03

0.000043

2.07 ± 1.69

0.000085

1.81 ± 1.52

0.000078

M1

n=25

12.10 ± 6.78

n=25

7.04 ± 2.53

4.57 ± 2.03

3.85 ± 1.16

cell histology

clear cell carcinoma

n=57

4.94 ± 3.15

0.000069

n=57

3.16 ± 2.44

0.000500

2.28 ± 1.68

0.000300

2.03 ± 1.19

0.001300

non-clear cell carcinoma

n=11

9.44 ± 5.04

n=11

4.43 ± 3.36

3.21 ± 2.11

3.41 ± 2.24

Sarcomatoid*

n=9

16.54 ± 9.37

n=9

8.56 ± 1.88

6.17 ± 2.02

3.95 ± 1.59

  1. Data show mean ± S.D.
  2. Sarcomatoid*: clear cell carcinoma with sarcomatoid differentiation.