Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation

Diabetic nephropathy (DN) is a microvascular complication of diabetes mellitus (DM) and the most common cause of death in diabetic patients. DN progression is associated with podocyte damage due to reduced autophagy caused by mTORC1 activation. Tangshenning (TSN) has been shown to reduce proteinuria...

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Main Authors: Jiayi Xu, Xiaomeng Shan, Chunwei Chen, Yanbin Gao, Dawei Zou, Xiaolei Wang, Tao Wang, Yimin Shi
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2022/1610416
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author Jiayi Xu
Xiaomeng Shan
Chunwei Chen
Yanbin Gao
Dawei Zou
Xiaolei Wang
Tao Wang
Yimin Shi
author_facet Jiayi Xu
Xiaomeng Shan
Chunwei Chen
Yanbin Gao
Dawei Zou
Xiaolei Wang
Tao Wang
Yimin Shi
author_sort Jiayi Xu
collection DOAJ
description Diabetic nephropathy (DN) is a microvascular complication of diabetes mellitus (DM) and the most common cause of death in diabetic patients. DN progression is associated with podocyte damage due to reduced autophagy caused by mTORC1 activation. Tangshenning (TSN) has been shown to reduce proteinuria, protect renal function, and reduce podocyte damage. Still, the effect of TSN on the autophagic activity of podocytes remains unclear. Herein, in vitro experiments using a high glucose-induced podocyte injury model were performed. Results showed that TSN treatment enhanced the weakened nephrin expression and autophagic activity of podocytes and inhibited the mTORC1 pathway (p-mTOR, mTOR, p-p70S6K, p70S6K, ULK1, and 4EBP1) under high glucose conditions. Furthermore, the mTORC1 activator (siRNA-TSC2) partially inhibited the above beneficial effects of TSN, suggesting that mTORC1 was the target of TSN to regulate autophagy. In summary, TSN reduces podocyte damage induced by high glucose via inhibiting mTORC1 pathway and downstream targets and restoring podocyte autophagy.
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institution Kabale University
issn 2314-6753
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Journal of Diabetes Research
spelling doaj-art-a3a3d1634cdd4f448700b68640d8bb432025-02-03T05:57:28ZengWileyJournal of Diabetes Research2314-67532022-01-01202210.1155/2022/1610416Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 ActivationJiayi Xu0Xiaomeng Shan1Chunwei Chen2Yanbin Gao3Dawei Zou4Xiaolei Wang5Tao Wang6Yimin Shi7School of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineSchool of Traditional Chinese MedicineDiabetic nephropathy (DN) is a microvascular complication of diabetes mellitus (DM) and the most common cause of death in diabetic patients. DN progression is associated with podocyte damage due to reduced autophagy caused by mTORC1 activation. Tangshenning (TSN) has been shown to reduce proteinuria, protect renal function, and reduce podocyte damage. Still, the effect of TSN on the autophagic activity of podocytes remains unclear. Herein, in vitro experiments using a high glucose-induced podocyte injury model were performed. Results showed that TSN treatment enhanced the weakened nephrin expression and autophagic activity of podocytes and inhibited the mTORC1 pathway (p-mTOR, mTOR, p-p70S6K, p70S6K, ULK1, and 4EBP1) under high glucose conditions. Furthermore, the mTORC1 activator (siRNA-TSC2) partially inhibited the above beneficial effects of TSN, suggesting that mTORC1 was the target of TSN to regulate autophagy. In summary, TSN reduces podocyte damage induced by high glucose via inhibiting mTORC1 pathway and downstream targets and restoring podocyte autophagy.http://dx.doi.org/10.1155/2022/1610416
spellingShingle Jiayi Xu
Xiaomeng Shan
Chunwei Chen
Yanbin Gao
Dawei Zou
Xiaolei Wang
Tao Wang
Yimin Shi
Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
Journal of Diabetes Research
title Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
title_full Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
title_fullStr Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
title_full_unstemmed Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
title_short Tangshenning Attenuates High Glucose-Induced Podocyte Injury via Restoring Autophagy Activity through Inhibiting mTORC1 Activation
title_sort tangshenning attenuates high glucose induced podocyte injury via restoring autophagy activity through inhibiting mtorc1 activation
url http://dx.doi.org/10.1155/2022/1610416
work_keys_str_mv AT jiayixu tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
AT xiaomengshan tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
AT chunweichen tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
AT yanbingao tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
AT daweizou tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
AT xiaoleiwang tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation
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AT yiminshi tangshenningattenuateshighglucoseinducedpodocyteinjuryviarestoringautophagyactivitythroughinhibitingmtorc1activation