Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis

Gastrointestinal (GI) complications of diabetes mellitus (DM) significantly impact on patients’ quality of life. Enteric glial cells (EGC) are the key cell type of enteric nervous system (ENS), which contributes to the destruction of gut homeostasis in DM. Circular RNAs (circRNAs) are a novel type o...

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Main Authors: Zhu Xiaowei, Li Yanyu, Zhu Xuping, Wang Ke, Zhu Xue, Jiang Yanmin, Xu Lan, Li Jianbo
Format: Article
Language:English
Published: China Science Publishing & Media Ltd. 2022-07-01
Series:Acta Biochimica et Biophysica Sinica
Subjects:
Online Access:https://www.sciengine.com/doi/10.3724/abbs.2022073
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author Zhu Xiaowei
Li Yanyu
Zhu Xuping
Wang Ke
Zhu Xue
Jiang Yanmin
Xu Lan
Li Jianbo
author_facet Zhu Xiaowei
Li Yanyu
Zhu Xuping
Wang Ke
Zhu Xue
Jiang Yanmin
Xu Lan
Li Jianbo
author_sort Zhu Xiaowei
collection DOAJ
description Gastrointestinal (GI) complications of diabetes mellitus (DM) significantly impact on patients’ quality of life. Enteric glial cells (EGC) are the key cell type of enteric nervous system (ENS), which contributes to the destruction of gut homeostasis in DM. Circular RNAs (circRNAs) are a novel type of RNAs abundant in the eukaryotic transcriptome, which form covalently closed continuous loops. In this study, the contribution of circRNAs to EGC damage in DM is investigated. Transcriptome sequencing analysis and functional study show that circVPS13A is significantly down-regulated in hyperglycemia-treated EGC, and circVPS13A overexpression attenuates EGC damage in both in vitro and in vivo DM models. In vitro mechanistic study using dual-luciferase reporter assay, affinity-isolation assay, fluorescence in situ hybridization (FISH) and immunostaining analysis identify that circVPS13A exerts its protective effect by sponging miR-182 and then up-regulates glial cell line-derived neurotrophic factor (GDNF) expression. In addition, in vivo study confirms that the circVPS13A-miR-182-GDNF network regulation can attenuate hyperglycemia-induced EGC damage of duodenum in streptozotocine (STZ)-induced DM mice. The findings of this study may provide novel insights into the protective role of circVPS13A in DM-associated EGC damage and clues for the development of new therapeutic approaches for the prevention of GI complications of DM.
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spelling doaj.art-3bd46c0984ad4207b66b91b1299273792023-11-07T01:00:39ZengChina Science Publishing & Media Ltd.Acta Biochimica et Biophysica Sinica1672-91452022-07-0154999100710.3724/abbs.202207320d259ccCircular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axisZhu Xiaowei0Li Yanyu1Zhu Xuping2Wang Ke3Zhu Xue4Jiang Yanmin5Xu Lan6Li Jianbo7["Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China","Department of Endocrinology, Wuxi People′s Hospital Affiliated to Nanjing Medical University, Wuxi 214000, China"]["Department of Endocrinology, Wuxi People′s Hospital Affiliated to Nanjing Medical University, Wuxi 214000, China"]["Department of Endocrinology, Wuxi People′s Hospital Affiliated to Nanjing Medical University, Wuxi 214000, China"]["NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China"]["NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China"]["Department of Endocrinology, Wuxi People′s Hospital Affiliated to Nanjing Medical University, Wuxi 214000, China"]["Department of Endocrinology, Wuxi People′s Hospital Affiliated to Nanjing Medical University, Wuxi 214000, China"]["Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China"]Gastrointestinal (GI) complications of diabetes mellitus (DM) significantly impact on patients’ quality of life. Enteric glial cells (EGC) are the key cell type of enteric nervous system (ENS), which contributes to the destruction of gut homeostasis in DM. Circular RNAs (circRNAs) are a novel type of RNAs abundant in the eukaryotic transcriptome, which form covalently closed continuous loops. In this study, the contribution of circRNAs to EGC damage in DM is investigated. Transcriptome sequencing analysis and functional study show that circVPS13A is significantly down-regulated in hyperglycemia-treated EGC, and circVPS13A overexpression attenuates EGC damage in both in vitro and in vivo DM models. In vitro mechanistic study using dual-luciferase reporter assay, affinity-isolation assay, fluorescence in situ hybridization (FISH) and immunostaining analysis identify that circVPS13A exerts its protective effect by sponging miR-182 and then up-regulates glial cell line-derived neurotrophic factor (GDNF) expression. In addition, in vivo study confirms that the circVPS13A-miR-182-GDNF network regulation can attenuate hyperglycemia-induced EGC damage of duodenum in streptozotocine (STZ)-induced DM mice. The findings of this study may provide novel insights into the protective role of circVPS13A in DM-associated EGC damage and clues for the development of new therapeutic approaches for the prevention of GI complications of DM.https://www.sciengine.com/doi/10.3724/abbs.2022073diabetes mellitusgastrointestinal complicationsenteric gliacircVPS13A
spellingShingle Zhu Xiaowei
Li Yanyu
Zhu Xuping
Wang Ke
Zhu Xue
Jiang Yanmin
Xu Lan
Li Jianbo
Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
Acta Biochimica et Biophysica Sinica
diabetes mellitus
gastrointestinal complications
enteric glia
circVPS13A
title Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
title_full Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
title_fullStr Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
title_full_unstemmed Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
title_short Circular RNA-VPS13A attenuates diabetes-induced enteric glia damage by targeting miR-182/GDNF axis
title_sort circular rna vps13a attenuates diabetes induced enteric glia damage by targeting mir 182 gdnf axis
topic diabetes mellitus
gastrointestinal complications
enteric glia
circVPS13A
url https://www.sciengine.com/doi/10.3724/abbs.2022073
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