title: Inflammation and colorectal cancer: does aspirin affect the interaction between cancer and immune cells?
abstract: The effect of aspirin on colon-cancer-cell-induced cytokine secretion by peripheral blood mononuclear cells (PBMC) was examined. Aspirin was added to human colon cancer cells (HT-29 and RKO) or to PBMC incubated separately or jointly. The secretion of IFNγ, IL-6, and IL-10 induced by HT-29 cells was decreased, that of IL-1β was slightly increased, whereas IL-1ra production was not affected. With RKO cells, aspirin reduced IL-6, IL-1ra, and IL-10 synthesis and enhanced IFNγ secretion, while IL-1β remained unchanged. Conditioned media from colon cancer cells incubated without or with aspirin stimulated cytokine productions by PBMC similarly, suggesting that aspirin acts on the cell-to-cell interaction between cancer cells and PBMC. The results indicate that aspirin alter the balance between pro- and anti-inflammatory cytokines generated by interaction between colon cancer and immune cells disclosing an additional role of the drug in affecting inflammation-induced colon cancer.
authors.affiliation: Department of Medicine C, Rabin Medical Center-Hasharon Hospital, Petah-Tiqva, Israel.
authors.forename: Michael
authors.initials: M
authors.lastname: Bergman
authors.forename: Meir
authors.initials: M
authors.lastname: Djaldetti
authors.forename: Hertzel
authors.initials: H
authors.lastname: Salman
authors.forename: Hanna
authors.initials: H
authors.lastname: Bessler
mesh_terms: D001241:Aspirin / Q000494:pharmacology*; D002450:Cell Communication / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D015179:Colorectal Neoplasms / Q000276:immunology* / Q000473:pathology; D017077:Culture Media, Conditioned; D016207:Cytokines / Q000378:metabolism*; D019073:HT29 Cells; D006801:Humans; D007371:Interferon-gamma / Q000096:biosynthesis / Q000378:metabolism; D053590:Interleukin 1 Receptor Antagonist Protein / Q000378:metabolism; D016753:Interleukin-10 / Q000096:biosynthesis / Q000378:metabolism; D053582:Interleukin-1alpha / Q000096:biosynthesis / Q000378:metabolism; D053583:Interleukin-1beta / Q000096:biosynthesis / Q000378:metabolism; D015850:Interleukin-6 / Q000096:biosynthesis / Q000378:metabolism; D007963:Leukocytes, Mononuclear / Q000187:drug effects / Q000378:metabolism*
chemical_list: D017077:Culture Media, Conditioned; D016207:Cytokines; D053590:Interleukin 1 Receptor Antagonist Protein; D053582:Interleukin-1alpha; D053583:Interleukin-1beta; D015850:Interleukin-6; D016753:Interleukin-10; D007371:Interferon-gamma; D001241:Aspirin