Table 1

The relationship between TSP1 expression or 4N1K immunoreactivity and clinicopathological features of RCC

T, N, and M classification were assessed according to the 1997 TNM grading system. Vascular invasion was examined microscopically with the removed tissues.

No. of patients (%)TSP1 expression (%)4N1K immunoreactivity (%)
Negative (n = 70)Positive (n = 49)Negative (n = 87)Positive (n = 32)
T classification
 T169 (58.0)41 (58.6)28 (57.1)39 (44.8)30 (93.8)
 T217 (14.3)8 (11.4)9 (18.4)15 (17.2)2 (6.2)
 T328 (23.5)19 (27.1)9 (18.4)28 (32.2)0 (0.0)
 T45 (4.2)2 (2.9)3 (6.1)5 (5.7)0 (0.0)
P0.448<0.001
N classification
 N0109 (91.6)63 (90.0)46 (93.9)77 (88.5)32 (100.0)
 N1 or N210 (8.4)7 (10.0)3 (4.1)10 (11.5)0 (0.0)
P0.4530.045
M classification
 M0102 (85.7)62 (88.6)40 (81.6)70 (80.5)32 (100.0)
 M117 (14.3)8 (11.4)9 (18.4)17 (19.5)0 (0.0)
P0.2870.007
Vascular invasion
 Negative89 (74.8)50 (71.4)39 (79.6)60 (69.0)29 (90.6)
 Positive20 (16.8)20 (29.6)10 (20.6)27 (31.0)3 (9.4)
P0.3130.016