MicroRNA profiling of activated and tolerogenic human dendritic cells.

MicroRNA profiling of activated and tolerogenic human dendritic cells.
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DOI:
10.1155/2014/259689
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发表时间:
2014
影响因子:
4.6
通讯作者:
Michalek J
Michalek J
中科院分区:
医学3区
文献类型:
--
作者:
Stumpfova Z;Hezova R;Meli AC;Slaby O;Michalek J

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树突状细胞 (DC) 属于免疫系统,因其指导激活或耐受性免疫反应的潜力而受到特别研究。人们越来越多地研究 microRNA (miRNA) 在转录后基因表达调控中的作用。本研究的目的是评估制备的人未成熟 (iDC)、激活 (aDC) 和耐受性树突状细胞 (tDC) 中 miRNA 的表达变化。使用 GM-CSF 和 IL-4 (iDC) 制备树突状细胞,随后通过添加 LPS 和 IFN-γ (aDC) 或 IL-10 和 TGF-β (tDC) 使其成熟。在成熟 6 小时和 24 小时的 iDC、tDC 和 aDC 中评估表面标记、细胞因子谱和 miRNA 谱。我们鉴定了 4 个 miRNA(miR-7、miR-9、miR-155 和 miR-182),它们在成熟 6 小时和 24 小时后在 aDC 中持续过表达,3 个 miRNA(miR-17、miR-133b 和 miR-203)和 miR-23b 簇仅在 tDC 中表达。我们发现 tDC 和 aDC 中 5 个 miRNA(miR-10a、miR-203、miR-210、miR-30a 和 miR-449b)上调,3 个 miRNA(miR-134、miR-145 和 miR-149)下调。这些结果表明 miRNA 在人类 DC 类型中受到特异性调节。这项工作可能有助于识别 aDC 和 tDC 的特异性调节 miRNA,这些 miRNA 将来可能作为癌症和自身免疫性疾病治疗的治疗靶点。
Dendritic cells (DCs) belong to the immune system and are particularly studied for their potential to direct either an activated or tolerogenic immune response. The roles of microRNAs (miRNAs) in posttranscriptional gene expression regulation are being increasingly investigated. This study's aim is to evaluate the miRNAs' expression changes in prepared human immature (iDCs), activated (aDCs), and tolerogenic dendritic cells (tDCs). The dendritic cells were prepared using GM-CSF and IL-4 (iDC) and subsequently maturated by adding LPS and IFN-γ (aDC) or IL-10 and TGF-β (tDC). Surface markers, cytokine profiles, and miRNA profiles were evaluated in iDC, tDC, and aDC at 6 h and 24 h of maturation. We identified 4 miRNAs (miR-7, miR-9, miR-155 and miR-182), which were consistently overexpressed in aDC after 6 h and 24 h of maturation and 3 miRNAs (miR-17, miR-133b, and miR-203) and miR-23b cluster solely expressed in tDC. We found 5 miRNAs (miR-10a, miR-203, miR-210, miR-30a, and miR-449b) upregulated and 3 miRNAs downregulated (miR-134, miR-145, and miR-149) in both tDC and aDC. These results indicate that miRNAs are specifically modulated in human DC types. This work may contribute to identifying specific modulating miRNAs for aDC and tDC, which could in the future serve as therapeutic targets in the treatment of cancer and autoimmune diseases.
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