Proinflammatory cytokines and IL-10 in inflammatory bowel disease and colorectal cancer patients.
BACKGROUND
The aim of the study was to describe the levels of circulating monocyte/macrophage pro-inflammatory cytokines (TNF-alpha, IL-1beta IL-6, and IL-8) and an anti-inflammatory cytokine (IL-10) in inflammatory bowel disease (IBD) and colorectal cancer (CRC) patients and healthy controls.


METHODS
The study was conducted on 15 healthy individuals, 20 patients with ulcerative colitis (UC), 12 with Crohn's disease (CD), and 15 with CRC (Dukes' stage B). Blood serum cytokine levels were measured by ELISA.


RESULTS
The patients with UC had significantly higher levels of the pro-inflammatory cytokines and of circulating IL-10 than the healthy controls. The patients with CD and CRC had the same specific pattern of serum cytokines of significantly elevated levels of the pro-inflammatory cytokines, but the IL-10 levels were within the range found in the healthy individuals.


CONCLUSIONS
Thus our results demonstrate that both IBD and CRC are linked with an intensified production of a wide array of monocyte/macrophage pro-inflammatory cytokines which is not accompanied by elevated levels of circulating IL-10, except for its insufficiently inhibitory elevation in UC patients.
Szkaradkiewicz
Andrzej
A
Department of Medical Microbiology, University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland. szkaradkiewicza@poczta.onet.pl
Marciniak
Ryszard
R
Chudzicka-Strugała
Izabela
I
Wasilewska
Agnieszka
A
Drews
Michał
M
Majewski
Przemysław
P
Karpiński
Tomasz
T
Zwoździak
Barbara
B
D000293:Adolescent; D000328:Adult; D003093:Colitis, Ulcerative / Q000097:blood / Q000188:drug therapy / Q000276:immunology* / Q000473:pathology; D015179:Colorectal Neoplasms / Q000097:blood / Q000276:immunology* / Q000473:pathology / Q000601:surgery; D003424:Crohn Disease / Q000097:blood / Q000188:drug therapy / Q000276:immunology* / Q000473:pathology; D005260:Female; D006801:Humans; D018836:Inflammation Mediators / Q000097:blood; D016753:Interleukin-10 / Q000097:blood / Q000235:genetics*; D008264:Macrophages / Q000276:immunology / Q000378:metabolism* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012307:Risk Factors; D013256:Steroids / Q000627:therapeutic use
D018836:Inflammation Mediators; D013256:Steroids; D016753:Interleukin-10