PMID- 31489995 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230201 IS - 1095-8355 (Electronic) IS - 1065-6995 (Linking) VI - 44 IP - 1 DP - 2020 Jan TI - LINC00462 is involved in high glucose-induced apoptosis of renal tubular epithelial cells via AKT pathway. PG - 286-294 LID - 10.1002/cbin.11231 [doi] AB - New evidences suggest that long non-coding RNAs (lncRNAs) may play important roles in a variety of kidney diseases, including diabetic nephropathy (DN). Our present study investigated the potential function of LINC00462 in high glucose (HG)-induced apoptosis of renal tubular epithelial cells (RTEC) and to determine the underlying mechanism. The expression of LINC00462 in renal biopsy tissues was examined using quantitative reverse-transcription polymerase chain reaction (qRT-PCR). Then, a loss of function assay was performed to determine the protective effect of LINC00462 in HG-induced RTEC damage. In addition, the downstream signaling pathway of LINC00462 was also investigated. The qRT-PCR results showed that the expression of LINC00462 was significantly up-regulated in renal biopsies from DN patients. At the same time, LINC00462 was enhanced in a glucose concentration- and time-dependent manner in human kidney (HK-2 and HKC) cells subjected to HG treatment. The knockdown of LINC00462 improved the significantly reduced cell viability of HG treatment, decreased HG-induced reactive oxygen species (ROS) and malondialdehyde levels, and up-regulated the response of antioxidant systems to ROS by increasing superoxide dismutase and catalase levels. In addition, knockdown of LINC00462 inhibited HG-induced cell apoptosis and affected the expression of apoptosis-related proteins. Most importantly, we found that knockdown of LINC00462 enhanced the expression of p-AKT. Moreover, AKT-specific inhibitor LY294002 restored the effect of LINC00462 knockdown on apoptosis. In conclusion, our study demonstrated that knockdown of LINC00462 can ameliorate oxidative stress and apoptosis in HG-induced RTEC by activating the AKT pathway, suggesting that knockdown of LINC00462 may provide a potential therapeutic approach for DN. CI - (c) 2019 International Federation for Cell Biology. FAU - Wang, Ruixin AU - Wang R AD - Department of Nephrology, The Fifth Affiliated Hospital of Guangzhou Medical University, 621 Gangwan Road, Huangpu District, Guangzou, Guangdong, 510730, P.R. China. FAU - Yan, Yuehong AU - Yan Y AD - Department of Nephrology, The Fifth Affiliated Hospital of Guangzhou Medical University, 621 Gangwan Road, Huangpu District, Guangzou, Guangdong, 510730, P.R. China. FAU - Li, Cuicui AU - Li C AD - Department of Nephrology, The Fifth Affiliated Hospital of Guangzhou Medical University, 621 Gangwan Road, Huangpu District, Guangzou, Guangdong, 510730, P.R. China. LA - eng PT - Journal Article DEP - 20190923 PL - England TA - Cell Biol Int JT - Cell biology international JID - 9307129 SB - IM OTO - NOTNLM OT - AKT signaling pathway OT - LINC00462 OT - high glucose-induced apoptosis OT - renal tubular epithelial cells EDAT- 2019/09/07 06:00 MHDA- 2019/09/07 06:01 CRDT- 2019/09/07 06:00 PHST- 2019/04/24 00:00 [received] PHST- 2019/08/31 00:00 [accepted] PHST- 2019/09/07 06:00 [pubmed] PHST- 2019/09/07 06:01 [medline] PHST- 2019/09/07 06:00 [entrez] AID - 10.1002/cbin.11231 [doi] PST - ppublish SO - Cell Biol Int. 2020 Jan;44(1):286-294. doi: 10.1002/cbin.11231. Epub 2019 Sep 23.