Research Article

Tumor Budding, uPA, and PAI-1 in Colorectal Cancer: Update of a Prospective Study

Table 2

Clinicopathological data: validation set.

Complete collection uPA low uPA high valuePAI-1 low PAI-1 high valueBudding low ()Budding high () value

Mean age ± SD68 ± 1168 1067 121.068 1167 120.75369 1164 110.091
Gender m : f1 : 0.91 : 0.741 : 1.150.5141 : 0.71 : 1.40.2621 : 1.21 : 0.30.05
Right colon32 (47%)17 (43%)15 (54%)21 (48%)11 (46%)26 (51%)6 (35%)
Left colon18 (26%)11 (28%)7 (25%)9 (20%)9 (38%)16 (31%)2 (12%)
Total colon3 (4%)1 (3%)2 (7%)1 (2%)2 (8%)1 (2%)2 (12%)
Rectum15 (22%)11 (28%)4 (14%)13 (30%)2 (8%)8 (16%)7 (41%)
Conventional histological type56 (82%)38 (95%)18 (64%)42 (95%)14 (58%)42 (82%)14 (82%)
Mucinous type8 (12%)1 (3%)7 (25%)1 (2%)7 (29%)6 (12%)2 (12%)
Medullary type1 (1%)0 (0%)1 (4%)0 (0%)1 (4%)1 (2%)0 (0%)
Micropapillary type3 (4%)1 (3%)2 (7%)1 (2%)2 (8%)<2 (4%)1 (6%)
Infiltrative 6 (9%)6 (15%)0 (0%)0.1646 (14%)0 (0%)0.0833 (6%)3 (18%)0.160
pT 1/216 (24%)13 (33%)3 (11%)16 (36%)0 (0%)14 (27%)2 (12%)
pT 3/452 (76%)27 (68%)25 (89%)0.07328 (64%)24 (100%)0.00237 (73%)15 (88%)0.322
Grading: low grade53 (78%)36 (90%)17 (61%)39 (89%)14 (58%)41 (80%)12 (71%)
Grading: high grade15 (22%)4 (10%)11 (39%)0.015 (11%)10 (42%)0.0110 (20%)5 (29%)0.501
Node positive38 (56%)21 (53%)17 (61%)0.40422 (50%)16 (67%)0.28625 (49%)13 (76%)0.091
Lymphatic invasion15 (22%)10 (25%)5 (18%)0.5639 (20%)6 (25%)0.7628 (16%)7 (41%)0.043
Venous invasion11 (16%)6 (15%)5 (18%)0.3196 (14%)5 (21%)0.5005 (10%)6 (35%)0.022
Perineural invasion10 (15%)5 (13%)5 (18%)0.7307 (16%)3 (13%)1.0006 (12%)4 (24%)0.254
Strong chronic inflammation13 (19%)6 (15%)7 (25%)0.35710 (23%)3 (13%)0.35513 (25%)0 (0%)0.028
MSI/MMRd9 (13%)3 (8%)6 (21%)0.1465 (11%)4 (17%)0.7109 (18%)0 (0%)0.099
Metastatic disease13 (19%)5 (13%)8 (29%)0.1246 (14%)7 (29%)0.1955 (10%)8 (47%)0.002
Mean LN, number ± SD43 1744 2042 120.83742 1945 130.06843 1842 160.949
Neoadjuvant therapy4 (36%)3 (75%)6 (46%)1 (50%)3 (38%)4 (57%)

SD, standard deviation; LN, lymph nodes. includes all locations (right, left, total, and rectum). versus nonrectal cancers. versus group of nonconventional types. to Jass [5]. is the number of rectal cancers.