The development of novel treatments for lymphedema is hindered by the poorly understood pathophysiology of the disease. To improve the therapeutic success of treating the disease, the present study aimed to investigate the effects and mechanism of long non‑coding RNA myocardial infarction‑associated transcript (MIAT) in terms of the differentiation of adipose‑derived mesenchymal stem cells (ADMSCs) into lymphatic endothelial cells (LECs). The expression levels of (MIAT), microRNA (miR)‑495 and Prospero‑related homeobox 1 (Prox1) were measured by reverse transcription‑quantitative PCR. The protein expression levels of Prox1, lymphatic vessel endothelial hyaluronan receptor 1 (LYVE‑1), vascular endothelial growth factor receptor‑3 (VEGFR‑3) and podoplanin (PDPL) were detected by western blotting and immunofluorescence. A dual‑luciferase reporter assay was also used to detect the interaction between MIAT, miR‑495 and Prox1. In addition, migration and tube‑formation capabilities were measured by Transwell assay and tube‑formation assay, respectively. The results obtained demonstrated that VEGF‑C156S (recombinant VEGF‑C in which Cys156 was replaced by Ser residue) treatment could efficiently induce the differentiation of ADMSCs into LECs. MIAT expression was upregulated and miR‑495 was downregulated during differentiation. Mechanistically, MIAT upregulated Prox1 expression possibly by acting as a molecular sponge for miR‑495. Functional analyses indicated that the expression levels of Prox1, LYVE‑1, VEGFR‑3 and PDPL, and the migration and tube‑formation capabilities of ADMSCs induced by VEGF‑C156S, were significantly inhibited by silencing MIAT and overexpressing miR‑495. Moreover, miR‑495 inhibition and Prox1 overexpression reversed the effects of MIAT downregulation and miR‑495 upregulation, respectively, on the differentiation of ADMSCs into LECs. Taken together, these results suggested that MIAT may be involved in the differentiation of ADMSCs into LECs, and that the MIAT/miR‑495/Prox1 axis may be a novel regulatory mechanism and therapeutic target for the treatment of lymphedema.Keywords: lymphedema; long non‑coding RNA myocardial infarction associated transcript; adipose derived mesenchymal stem cells; microRNA‑495; Prospero‑related homeobox 1.

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乐备实（上海优宁维生物科技股份有限公司旗下全资子公司），是国内专注于提供高质量蛋白检测以及组学分析服务的实验服务专家，自2018年成立以来，乐备实不断寻求突破，公司的服务技术平台已扩展到单细胞测序、空间多组学、流式检测、超敏电化学发光、Luminex多因子检测、抗体芯片、PCR Array、ELISA、Elispot、PLA蛋白互作、多色免疫组化、DSP空间多组学等30多个，建立起了一套涵盖基因、蛋白、细胞以及组织水平实验的完整检测体系。

 
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