OBJECTIVES: Previous studies have revealed that interleukin 17 (IL-17) contributes to pathological processes in many solid tumors. However, the roles of IL-17 in gynecologic cancer still remain elusive, hindering the deep understanding of gynecologic tumorigenesis. METHODS: In the present study, to delineate the functional roles of IL-17 in gynecologic cancer, IL-17 stimulation was introduced in cell lines of 3 gynecologic cancers, and IL-17-induced expression of chemokines and cytokines and possible signaling pathways were investigated. RESULTS: Our results showed that in HEC-1-B (human endometrial cancer) cells, IL-17 stimulation induced mRNA level increases of CCL2, CCL5, CCL20, CXCL2, and IL-8. Similar treatment in HeLa cells caused increases in the mRNA levels of CCL2, CXCL2, IL-6, and IL-8, and in SKOV3 cells, mRNA levels of CCL2, CCL20, CXCL1, CXCL2, IL-6, and IL-8 increased. The increases in mRNA levels induced by IL-17 were dose- and time-dependent. Furthermore, with the addition of the NF-κB (nuclear factor κ-light-chain-enhancer of activated B) and extracellular signal-regulated kinase inhibitors pyrrolidine dithiocarbamate and PD98059, the IL-17-induced CCL2 mRNA level was significantly compromised. IL-17 stimulation also activated phosphorylation of IκBα and extracellular signal-regulated kinase 1/2 in a time-dependent manner. CONCLUSION: These results demonstrated that IL-17 may regulate chemokines and cytokines in gynecologic cancers.
OBJECTIVES: Previous studies have revealed that interleukin 17 (IL-17) contributes to pathological processes in many solid tumors. However, the roles of IL-17 in gynecologic cancer still remain elusive, hindering the deep understanding of gynecologic tumorigenesis. METHODS: In the present study, to delineate the functional roles of IL-17 in gynecologic cancer, IL-17 stimulation was introduced in cell lines of 3 gynecologic cancers, and IL-17-induced expression of chemokines and cytokines and possible signaling pathways were investigated. RESULTS: Our results showed that in HEC-1-B (humanendometrial cancer) cells, IL-17 stimulation induced mRNA level increases of CCL2, CCL5, CCL20, CXCL2, and IL-8. Similar treatment in HeLa cells caused increases in the mRNA levels of CCL2, CXCL2, IL-6, and IL-8, and in SKOV3 cells, mRNA levels of CCL2, CCL20, CXCL1, CXCL2, IL-6, and IL-8 increased. The increases in mRNA levels induced by IL-17 were dose- and time-dependent. Furthermore, with the addition of the NF-κB (nuclear factor κ-light-chain-enhancer of activated B) and extracellular signal-regulated kinase inhibitors pyrrolidine dithiocarbamate and PD98059, the IL-17-induced CCL2 mRNA level was significantly compromised. IL-17 stimulation also activated phosphorylation of IκBα and extracellular signal-regulated kinase 1/2 in a time-dependent manner. CONCLUSION: These results demonstrated that IL-17 may regulate chemokines and cytokines in gynecologic cancers.
Authors: David Bauer; Elizabeth Mazzio; Karam Fa Soliman; Equar Taka; Ebenezer Oriaku; Tracey Womble; Selina Darling-Reed Journal: Anticancer Res Date: 2014-06 Impact factor: 2.480
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