Research Article

The Association of Simultaneous Increase in Interleukin-6, C Reactive Protein, and Matrix Metalloproteinase-9 Serum Levels with Increasing Stages of Colorectal Cancer

Table 1

IL-6, CRP, and MMP-9 serum concentrations in relation to clinicopathological features of the colorectal cancer.

CRC stage
VariabeControl
(n=20)
II
(n=22)
III
(n=27)
IV
(n=26)
p Value

IL-6
(pg/mL)
0.0
(0.0-0.0
2.5
(0.0-4.0
6.5
(0.2-21.3
28.8
(10.4-75.6
<0.001
CRP
(mg/L)
2.3
(0.7-3.8
7.2
(2.3-13.0
19.0
(8.5-45.0
38.6
(21.4-74.5
<0.001
MMP-9
(ng/mL)
310.6
(205.0-356.3
434.8
(373.3-447.4
458.4
(447.0-464.1
459.7
(453.2-469.6
<0.001

Bowel wall infiltration (pT)
pT2
(n=10)
pT3
(n=38)
pT4
(n=27)
p Value

IL-6
(pg/mL)
0.0
(0.0-0.0
6.6
(0.3-21.1
8.9
(2.1-29.2
6.5
(0.2-21.3
0.306
CRP
(mg/L)
2.3
(0.7-3.8
17.75
(7.3-20.25
19.9
(7.9-45.7
29.7
(14.7-50
<0.05
MMP-9
(ng/mL)
310.6
(205.0-356.3
450.35
(438-454.8
450.9
(435.8-460.5
458.4
(447-464.1
0.103

Lymph nodes invasion (pN)
pN0 (n=25)pN1 (n=26)pN2 (n=24)p Value

IL-6
(pg/mL)
0.0
(0.0-0.0
3.0
(0.0-5.2
10.3
(2.5-44.8
20.1
(6.4-46.7
<0.001
CRP
(mg/L)
2.3
(0.7-3.8
8.3
(2.4-20.3
26.7
(15.9-59.3
33.7
(14.7-68.5
<0.001
MMP-9
(ng/mL)
310.6
(205.0-356.3
437.4
(383.3-448.8
458.9
(452.8-465.4
458.2
(449.8-464.6
<0.001

Data are presented as median and interquartile range q1-q3 (25%-75%).
Values in the same row that do not contain a common lettering differ significantly on the level p <0.05.
CRC: colorectal cancer; IL-6: interleukin-6; CRP: C-reactive protein; MMP-9: matrix metalloproteinase-9; pT2: tumor invades muscularis propria; pT3: the tumor invades through the muscularis propria in the pericolic tissue; pT4: the tumor penetrates the surface of visceral peritoneum or other organs; pN0: no invasion to regional lymph nodes; pN1: 1-3 regional metastatic lymph nodes; pN2: 4 or more metastatic lymph nodes.