Hemangioma (HA) is the most common benign tumor and formed by the proliferating endothelial cells of blood vessels. Interleukins (ILs) have been reported to be critical for HA progression. Our present study found that the expression of IL-10 was decreased in HA cells and tissues as compared to their corresponding controls. Treatment with recombinant IL-10 (rIL-10) can suppress the proliferation of HA cells via suppression of proliferating cell nuclear antigen (PCNA), while over expression of PCNA can attenuate rIL-10-inhibited cell proliferation. Further, rIL-10 can decrease the promoter activity and mRNA stability of PCNA in HA cells. Mechanistically, rIL-10 can increase expression of miR-27b-3p to decrease mRNA stability of PCNA, while down regulation of YY1 is involved in rIL-10 suppressed transcription of PCNA. Collectively, IL-10 can suppress the expression of PCNA via miR-27b-3p mediated suppression of mRNA stability and YY1 mediated down regulation of transcription. It suggested that rIL-10 might be a potential therapeutic approach for HA development and progression.
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| http://dx.doi.org/10.1016/j.abb.2020.108404 | DOI Listing |
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