ArticleGenes & genomics2021
Long non-coding RNA TTC28-AS1 attenuates high glucose-induced damage in HK-2 cells depending on the regulation of miR-320a/CD2AP axis.
Article in Genes & genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 2 institutions in 1 country.
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Abstract
backgroundDiabetic nephropathy (DN) is the leading cause of end-stage renal disease (ESRD) worldwide. Emerging evidence suggests that long non-coding RNAs (lncRNAs) play crucial roles in DN pathogenesis.
objectiveThe purpose of the present study was to explore the role and mechanism of lncRNA tetratricopeptide repeat domain 2B antisense RNA 1 (TTC28-AS1) in DN.
methodsCell viability and apoptosis were assessed by the Cell Counting-8 Kit (CCK-8) assay and flow cytometry, respectively. The levels of TTC28-AS1, miR-320a and CD2-associated protein (CD2AP) were determined by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and IL-8 were gauged by enzyme-linked immunosorbent assay (ELISA). Targeted relationship between miR-320a and TTC28-AS1 or CD2AP was evaluated by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays.
resultsOur data indicated that high glucose (HG) induced HK-2 cell damage by the repression of cell viability and autophagy and the enhancement of cell apoptosis, fibrosis and pro-inflammatory cytokines production. TTC28-AS1 was down-regulated and miR-320a was up-regulated in HG-induced HK-2 cells. TTC28-AS1 overexpression or miR-320a knockdown alleviated HG-induced damage in HK-2 cells. MiR-320 was a molecular mediator of TTC28-AS1 in regulating HG-induced HK-2 cell damage. Moreover, TTC28-AS1 functioned as a post-transcriptional regulator of CD2AP expression by miR-320a. MiR-320a knockdown relieved HG-induced damage in HK-2 cells by up-regulating CD2AP.
conclusionsOur findings suggest that TTC28-AS1 attenuates HG-induced damage in HK-2 cells at least partially by targeting the miR-320a/CD2AP axis, highlighting its role as a promising therapeutic approach for DN treatment.
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