MicroRNA-150 inhibits tumor invasion and metastasis by targeting the chemokine receptor CCR6, in advanced cutaneous T-cell lymphoma
Blood, ISSN: 0006-4971, Vol: 123, Issue: 10, Page: 1499-1511
2014
- 94Citations
- 58Captures
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Metrics Details
- Citations94
- Citation Indexes94
- 94
- CrossRef48
- Captures58
- Readers58
- 58
Article Description
In this study, we show that microRNA-150 (miR-150) is significantly downregulated in advanced cutaneous T-cell lymphoma (CTCL), and that this downregulation is strongly associated with tumor invasion/metastasis. Inoculation of CTCL cell lines into nonobese diabetic/Shi-scid interleukin 2γ (IL-2γ) null mice led to CTCL cell migration to multiple organs; however, prior transfection of the cells with miR-150 substantially reduced the invasion/metastasis by directly downregulating CCR6, a specific receptor for the chemokine CCL20. We also found that IL-22 and its specific receptor subunit, IL22RA1, were aberrantly overexpressed in advanced CTCL, and that production of IL-22 and CCL20 was increased in cultured CTCL cells. IL22RA1 knockdown specifically reduced CCL20 production in CTCL cells, suggesting that IL-22 upregulation may activate the production of CCL20 and its binding to CCR6, thereby enhancing the multidirectional migration potential of CTCL cells. CTCL cells also exhibited nutrition- and CCL20-dependent chemotaxis, which were inhibited by miR-150 transfection or CCR6 knockdown. From these findings, we conclude that, in the presence of continuous CCR6 upregulation accompanied by miR-150 downregulation, IL-22 activation leads to continuous CCL20-CCR6 interaction in CTCL cells and, in turn, autocrine metastasis to distal organs. This suggests miR-150, CCL20, and CCR6 could be key targets for the treatment of advanced CTCL.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0006497120359231; http://dx.doi.org/10.1182/blood-2013-09-527739; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84897547431&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/24385540; https://ashpublications.org/blood/article/123/10/1499/32383/MicroRNA150-inhibits-tumor-invasion-and-metastasis; https://dx.doi.org/10.1182/blood-2013-09-527739
American Society of Hematology
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