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Interleukin-7 Contributes to the Invasiveness of Prostate Cancer Cells by Promoting Epithelial-Mesenchymal Transition

Cited 26 time in Web of Science Cited 28 time in Scopus
Authors

Seol, Min A.; Kim, Jin-Hee; Oh, Keunhee; Kim, Gwanghun; Seo, Myung Won; Shin, Young-Kyoung; Sim, Ji Hyun; Shin, Hyun Mu; Seo, Bo Yeon; Lee, Dong-Sup; Ku, Ja-Lok; Han, Ilkyu; Kang, Insoo; Park, Serk In; Kim, Hang-Rae

Issue Date
2019-05-06
Publisher
Nature Publishing Group
Citation
Scientific Reports, Vol.9 No.1, p. 6917
Abstract
Precise mechanisms underlying interleukin-7 (IL-7)-mediated tumor invasion remain unclear. Thus, we investigated the role of IL-7 in tumor invasiveness using metastatic prostate cancer PC-3 cell line derivatives, and assessed the potential of IL-7 as a clinical target using a Janus kinase (JAK) inhibitor and an IL-7-blocking antibody. We found that IL-7 stimulated wound-healing migration and invasion of PC-3 cells, increased phosphorylation of signal transducer and activator of transcription 5, Akt, and extracellular signal-regulated kinase. On the other hand, a JAK inhibitor and an IL-7-blocking antibody decreased the invasiveness of PC-3 cells. IL-7 increased tumor sphere formation and expression of epithelial-mesenchymal transition (EMT) markers. Importantly, lentiviral delivery of IL-7R alpha. to PC-3 cells significantly increased bone metastasis in an experimental murine metastasis model compared to controls. The gene expression profile of human prostate cancer cells from The Cancer Genome Atlas revealed that EMT pathways are strongly associated with prostate cancers that highly express both IL-7 and IL-7R alpha. Collectively, these data suggest that IL-7 and/or IL-7R alpha. are promising targets of inhibiting tumor metastasis.
ISSN
2045-2322
URI
https://hdl.handle.net/10371/195106
DOI
https://doi.org/10.1038/s41598-019-43294-4
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Research Area Function, Immune modulation by metabolites, T-cell anergy, differentiation of memory CD8+ T cells, metabolism

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