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Effect of inflammatory cytokines and growth factors on tumour cell adhesion to the peritoneum
Author(s) -
van Rossen M. E. E.,
Hofland L. J.,
van den Tol M. P.,
van Koetsveld P. M.,
Jeekel J.,
Marquet R. L.,
van Eijck C. H. J.
Publication year - 2001
Publication title -
the journal of pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.964
H-Index - 184
eISSN - 1096-9896
pISSN - 0022-3417
DOI - 10.1002/1096-9896(2000)9999:9999<::aid-path805>3.0.co;2-o
Subject(s) - mesothelium , epidermal growth factor , cell adhesion , adhesion , peritoneum , cell growth , mesothelial cell , growth factor , cell , cell adhesion molecule , biology , chemistry , cancer research , cell culture , immunology , medicine , pathology , biochemistry , receptor , organic chemistry , genetics
In this experimental study, the effect of inflammatory cytokines and growth factors on tumour cell adhesion to the peritoneum was investigated. A reproducible in vitro assay was developed to study the adhesion of CC531 colon carcinoma cells to an autologous monolayer of rat mesothelial cells. Tumour cell adhesion to mesothelium pre‐incubated with interleukin‐1β (IL‐1β) and epidermal growth factor (EGF) resulted in at least 60% more tumour cell adhesion at maximal stimulation ( p ≤0.001). Transforming growth factor‐β (TGF‐β) pre‐incubation resulted in minor, though significant stimulation of cell adhesion (maximal 16%, p <0.05). The effect of IL‐1β was time‐ and dose‐dependent. No mesothelial cell proliferation took place after pretreatment with IL‐1β, indicating that enhanced adhesion was not based on an increase in the number of mesothelial cells. Pretreatment with EGF stimulated mesothelial cell growth as measured by DNA analysis. This effect on cell growth and adhesion was dose‐dependent. Additional blocking experiments with anti‐IL‐1β resulted in statistically significant inhibition of IL‐1β‐stimulated tumour cell adhesion ( p ≤0.01), demonstrating the specificity of this effect. Interferon‐γ (IFN‐γ), tumour necrosis factor‐α (TNF‐α), IL‐6, and insulin‐like growth factor (IGF‐I) pre‐incubation had no effect on tumour cell adhesion. These results prove that IL‐1β and EGF are significant promoting factors in tumour cell adhesion to mesothelium in vitro and may therefore account for tumour recurrence in the peritoneum in vivo . Copyright © 2000 John Wiley & Sons, Ltd.