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Darvishzadeh Mahani F, Raji-Amirhasani A, Khaksari M, Mousavi MS, Bashiri H, Hajializadeh Z, Alavi SS. Caloric and time restriction diets improve acute kidney injury in experimental menopausal rats: role of silent information regulator 2 homolog 1 and transforming growth factor beta 1. Mol Biol Rep 2024; 51:812. [PMID: 39007943 DOI: 10.1007/s11033-024-09716-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 06/10/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Estrogen has a protective impact on acute kidney injury (AKI); moreover, reducing the daily intake of calories impedes developing diseases. The present study aimed to determine the effects of calorie restriction (CR) and time restriction (TR) diets on the expression of silent information regulator 2 homolog 1 (SIRT1), transforming growth factor beta 1 (TGF-β1), and other indicators in the presence and absence of ovaries in AKI female rats. METHODS The female rats were divided into two groups, ovariectomized (OVX) and sham, and were placed on CR and TR diets for eight weeks; afterward, AKI was induced by injecting glycerol, and kidney injury indicators and biochemical parameters were measured before and after AKI. RESULTS After AKI, the levels of urine albumin excretion rate, urea, and creatinine in serum, and TGF-β1 increased, while creatinine clearance and SIRT1 decreased in kidney tissue. CR improved kidney indicators and caused a reduction in TGF-β1 and an increase in SIRT1 in ovary-intact rats. Moreover, CR prevented total antioxidant capacity (TAC) decrease and malondialdehyde (MDA) increase resulting from AKI. Before AKI, an increase in body weight, fasting blood sugar (FBS), low-density lipoprotein (LDL), triglyceride (TG), and total cholesterol (TC), and a decrease in high-density lipoprotein (HDL) were observed in OVX rats compared to sham rats, but CR prevented these changes. The effects of TR were similar to those of CR in all indicators except for TGF-β1, SIRT1, urea, creatinine, and albumin. CONCLUSION The present study indicated that CR is more effective than TR in preventing AKI, probably by increasing SIRT1 and decreasing TGF-β1 in ovary-intact animals.
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Affiliation(s)
- Fatemeh Darvishzadeh Mahani
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Alireza Raji-Amirhasani
- Endocrinology and Metabolism Research Center, Kerman University of Medical SciencesKerman, Kerman, Iran
- Department of Physiology and Pharmacology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Kerman University of Medical SciencesKerman, Kerman, Iran.
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
- Physiology Research Center, Department of Physiology and Pharmacology, 22 Bahman Blvd, Kerman, Iran.
| | - Maryam Sadat Mousavi
- Clinical Research Development Unit, Shafa Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamideh Bashiri
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Hajializadeh
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Samaneh Sadat Alavi
- Department of Physiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
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Al-Salam S, Jagadeesh GS, Sudhadevi M, Yasin J. Galectin-3 and Autophagy in Renal Acute Tubular Necrosis. Int J Mol Sci 2024; 25:3604. [PMID: 38612416 PMCID: PMC11012141 DOI: 10.3390/ijms25073604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 04/14/2024] Open
Abstract
Acute kidney injury (AKI) is a public health burden with increasing morbidity and mortality rates and health care costs. Acute tubular necrosis (ATN) is the most common cause of AKI. Cisplatin (CIS) is a platinum-based chemotherapeutic agent used in the treatment of a wide variety of malignancies such as lung, breast, ovary, testis, bladder, cervix, and head and neck cancers. Autophagy plays an important role in AKI. Galectin-3 (Gal-3) is significantly increased in renal tubules in AKI; however, its role in autophagy is not well understood. Male C57B6/J and B6.Cg-Lgals3 /J Gal-3 knockout (KO) mice were used to induce AKI using a CIS mouse model of ATN. Renal Gal-3 and autophagy proteins' expression were measured using standard histologic, immunofluorescent, and enzyme-linked immunosorbent assay techniques. The data were presented as the mean ± S.E. Statistically significant differences (p < 0.05) were calculated between experimental groups and corresponding control groups by one-way analysis of variance. There was a significant increase in renal concentrations of Gal-3 in the Gal-3 wild-type CIS-treated mice when compared with sham control mice. There were significantly higher concentrations of renal LC3B, ATG13, Ulk-1, Beclin, ATG5, ATG12, ATG9A, and p-AMPK in the CIS-treated Gal-3 KO mice than in the Gal-3 wild-type CIS-treated mice. Further, there were significantly higher concentrations of mTOR, p- NF-κB, beta-catenin, and p62 in the kidneys of the Gal-3 wild-type CIS-treated mice than in the Gal-3 KO CIS-treated mice. Our findings affirm the connection between Gal-3 and autophagy, revealing its central role as a connector with prosurvival signaling proteins. Gal-3 plays a pivotal role in orchestrating cellular responses by interacting with prosurvival signal pathways and engaging with autophagy proteins. Notably, our observations highlight that the absence of Gal-3 can enhance autophagy in CIS-induced ATN.
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Affiliation(s)
- Suhail Al-Salam
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Govindan S. Jagadeesh
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Manjusha Sudhadevi
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Javed Yasin
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
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Khamis T, Alsemeh AE, Alanazi A, Eltaweel AM, Abdel-Ghany HM, Hendawy DM, Abdelkhalek A, Said MA, Awad HH, Ibrahim BH, Mekawy DM, Pascu C, Florin C, Arisha AH. Breast Milk Mesenchymal Stem Cells and/or Derived Exosomes Mitigated Adenine-Induced Nephropathy via Modulating Renal Autophagy and Fibrotic Signaling Pathways and Their Epigenetic Regulations. Pharmaceutics 2023; 15:2149. [PMID: 37631363 PMCID: PMC10458733 DOI: 10.3390/pharmaceutics15082149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/01/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
Chronic kidney disease (CKD), a global health concern, is highly prevalent among adults. Presently, there are limited therapeutic options to restore kidney function. This study aimed to investigate the therapeutic potential of breast milk mesenchymal stem cells (Br-MSCs) and their derived exosomes in CKD. Eighty adult male Sprague Dawley rats were randomly assigned to one of six groups, including control, nephropathy, nephropathy + conditioned media (CM), nephropathy + Br-MSCs, nephropathy + Br-MSCs derived exosomes (Br-MSCs-EXOs), and nephropathy + Br-MSCs + Br-MSCs-EXOs. Before administration, Br-MSCs and Br-MSCs-EXOs were isolated, identified, and labeled with PKH-26. SOX2, Nanog, and OCT3/4 expression levels in Br-MSCs and miR-29b, miR-181, and Let-7b in both Br-MSCs and Br-MSCs-EXOs were assayed. Twelve weeks after transplantation, renal function tests, oxidative stress, expression of the long non-coding RNA SNHG-7, autophagy, fibrosis, and expression of profibrotic miR-34a and antifibrotic miR-29b, miR-181, and Let-7b were measured in renal tissues. Immunohistochemical analysis for renal Beclin-1, LC3-II, and P62, Masson trichome staining, and histopathological examination of kidney tissues were also performed. The results showed that Br-MSCs expressed SOX2, Nanog, and OCT3/4, while both Br-MSCs and Br-MSCs-EXOs expressed antifibrotic miR-181, miR-29b, and Let-7b, with higher expression levels in exosomes than in Br-MSCs. Interestingly, the administration of Br-MSCs + EXOs, EXOs, and Br-MSCs improved renal function tests, reduced renal oxidative stress, upregulated the renal expression of SNHG-7, AMPK, ULK-1, Beclin-1, LC3, miR-29b, miR-181, Let-7b, and Smad-7, downregulated the renal expression of miR-34a, AKT, mTOR, P62, TGF-β, Smad-3, and Coli-1, and ameliorated renal pathology. Thus, Br-MSCs and/or their derived exosomes appear to reduce adenine-induced renal damage by secreting antifibrotic microRNAs and potentiate renal autophagy by modulating SNHG-7 expression.
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Affiliation(s)
- Tarek Khamis
- Department of Pharmacology and Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Amira Ebrahim Alsemeh
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Asma Alanazi
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh 11481, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
| | - Asmaa Monir Eltaweel
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh 11481, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
| | - Heba M. Abdel-Ghany
- Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Doaa M. Hendawy
- Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Adel Abdelkhalek
- Department of Food Hygiene, Safety and Technology, Faculty of Veterinary Medicine, Badr University in Cairo, Badr City 11829, Egypt
| | - Mahmoud A. Said
- Zagazig University Hospital, Zagazig University, Zagazig 44511, Egypt
| | - Heba H. Awad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza 12451, Egypt
| | - Basma Hamed Ibrahim
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Dina Mohamed Mekawy
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt;
| | - Corina Pascu
- Faculty of Veterinary Medicine, University of Life Sciences, King Mihai I from Timisoara [ULST], Aradului St. 119, 300645 Timisoara, Romania;
| | - Crista Florin
- Department of Soil Science, Faculty of Agriculture, University of Life Sciences, King Mihai I from Timisoara [ULST], Aradului St. 119, 300645 Timisoara, Romania
| | - Ahmed Hamed Arisha
- Department of Animal Physiology and Biochemistry, Faculty of Veterinary Medicine, Badr University in Cairo, Badr City 11829, Egypt
- Department of Physiology and Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
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4
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Habshi T, Shelke V, Kale A, Anders HJ, Gaikwad AB. Role of endoplasmic reticulum stress and autophagy in the transition from acute kidney injury to chronic kidney disease. J Cell Physiol 2023; 238:82-93. [PMID: 36409755 DOI: 10.1002/jcp.30918] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/29/2022] [Accepted: 11/08/2022] [Indexed: 11/22/2022]
Abstract
Acute kidney injury (AKI) and chronic kidney disease (CKD) are global health concerns with increasing rates in morbidity and mortality. Transition from AKI-to-CKD is common and requires awareness in the management of AKI survivors. AKI-to-CKD transition is a main risk factor for the development of cardiovascular disease and progression to end-stage kidney disease. The mechanisms driving AKI-to-CKD transition are being explored to identify potential molecular and cellular targets for renoprotective drug interventions. Endoplasmic reticulum (ER) stress and autophagy are involved in the process of AKI-to-CKD transition. Excessive ER stress results in the persistent activation of unfolded protein response, which is an underneath cause of kidney cell death. Moreover, ER stress modulates autophagy and vice-versa. Autophagy is a degradation defensive mechanism protecting cells from malfunction. However, the underlying pathological mechanism involved in this interplay in the context of AKI-to-CKD transition is still unclear. In this review, we discuss the crosstalk between ER stress and autophagy in AKI, AKI-to-CKD transition, and CKD progression. In addition, we explore possible therapeutic targets that can regulate ER stress and autophagy to prevent AKI-to-CKD transition to improve the long-term prognosis of AKI survivors.
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Affiliation(s)
- Tahib Habshi
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
| | - Vishwadeep Shelke
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
| | - Ajinath Kale
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
| | - Hans-Joachim Anders
- Division of Nephrology, Department of Internal Medicine IV, Hospital of the Ludwig Maximilians University Munich, Munich, Germany
| | - Anil Bhanudas Gaikwad
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
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Kushwaha K, Kabra U, Dubey R, Gupta J. Diabetic Nephropathy: Pathogenesis to Cure. Curr Drug Targets 2022; 23:1418-1429. [PMID: 35993461 DOI: 10.2174/1389450123666220820110801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/18/2022] [Accepted: 06/09/2022] [Indexed: 01/25/2023]
Abstract
Diabetic nephropathy (DN) is a leading cause of end-stage renal disorder (ESRD). It is defined as the increase in urinary albumin excretion (UAE) when no other renal disease is present. DN is categorized into microalbuminuria and macroalbuminuria. Factors like high blood pressure, high blood sugar levels, genetics, oxidative stress, hemodynamic and metabolic changes affect DN. Hyperglycemia causes renal damage through activating protein kinase C (PKC), producing advanced end glycation products (AGEs) and reactive oxygen species (ROS). Growth factors, chemokines, cell adhesion molecules, inflammatory cytokines are found to be elevated in the renal tissues of the diabetic patient. Many different and new diagnostic methods and treatment options are available due to the increase in research efforts and progression in medical science. However, until now, no permanent cure is available. This article aims to explore the mechanism, diagnosis, and therapeutic strategies in current use for increasing the understanding of DN.
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Affiliation(s)
- Kriti Kushwaha
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Uma Kabra
- Department of Pharmaceutical Chemistry, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat 391760, India
| | - Rupal Dubey
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab 144411, India.,Department of Medical Laboratory Sciences, School of Pharmaceutical Sciences, Lovely Professional University (LPU), Jalandhar - Delhi G.T. Road, Phagwara, Punjab 144411, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab 144411, India
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Zhou Z, Wang H, Zhang X, Song M, Yao S, Jiang P, Liu D, Wang Z, Lv H, Li R, Hong Y, Dai J, Hu Y, Zhao G. Defective autophagy contributes to endometrial epithelial-mesenchymal transition in intrauterine adhesions. Autophagy 2022; 18:2427-2442. [PMID: 35196191 PMCID: PMC9542425 DOI: 10.1080/15548627.2022.2038994] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Intrauterine adhesions (IUA), characterized by endometrial fibrosis, is a common cause of uterine infertility. We previously demonstrated that partial epithelial-mesenchymal transition (EMT) and the loss of epithelial homeostasis play a vital role in the development of endometrial fibrosis. As a pro-survival strategy in maintaining cell and tissue homeostasis, macroautophagy/autophagy, conversely, may participate in this process. However, the role of autophagy in endometrial fibrosis remains unknown. Here, we demonstrated that autophagy is defective in endometria of IUA patients, which aggravates EMT and endometrial fibrosis, and defective autophagy is related to DIO2 (iodothyronine deiodinase 2) downregulation. In endometrial epithelial cells (EECs), pharmacological inhibition of autophagy by chloroquine (CQ) promoted EEC-EMT, whereas enhanced autophagy by rapamycin extenuated this process. Mechanistically, silencing DIO2 in EECs blocked autophagic flux and promoted EMT via the MAPK/ERK-MTOR pathway. Inversely, overexpression of DIO2 or triiodothyronine (T3) treatment could restore autophagy and partly reverse EEC-EMT. Furthermore, in an IUA-like mouse model, the autophagy in endometrium was defective accompanied by EEC-EMT, and CQ could inhibit autophagy and aggravate endometrial fibrosis, whereas rapamycin or T3 treatment could improve the autophagic levels and blunt endometrial fibrosis. Together, we demonstrated that defective autophagy played an important role in EEC-EMT in IUA via the DIO2-MAPK/ERK-MTOR pathway, which provided a potential target for therapeutic implications.Abbreviations: ACTA2/α-SMA: actin alpha 2, smooth muscle; AMPK: adenosine 5'-monophosphate-activated protein kinase; AKT/protein kinase B: AKT serine/threonine kinase; ATG: autophagy related; CDH1/E-cadherin: cadherin 1; CDH2/N-cadherin: cadherin 2; CQ: chloroquine; CTSD: cathepsin D; DIO2: iodothyronine deiodinase 2; DEGs: differentially expressed genes; EECs: endometrial epithelial cells; EMT: epithelial-mesenchymal transition; FN1: fibronectin 1; IUA: intrauterine adhesions; LAMP1: lysosomal associated membrane protein 1; LPS: lipopolysaccharide; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MAPK: mitogen-activated protein kinase; MTOR: mechanistic target of rapamycin kinase; Rapa: rapamycin; SQSTM1/p62: sequestosome 1; T3: triiodothyronine; T4: tetraiodothyronine; TFEB: transcription factor EB; PBS: phosphate-buffered saline; TEM: transmission electron microscopy; TGFB/TGFβ: transforming growth factor beta.
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Affiliation(s)
- Zhenhua Zhou
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China,Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Huiyan Wang
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xiwen Zhang
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Minmin Song
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Simin Yao
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Peipei Jiang
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Dan Liu
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhiyin Wang
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Haining Lv
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Ruotian Li
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Ying Hong
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China,Jianwu Dai Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China
| | - Yali Hu
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China,Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China,Yali Hu
| | - Guangfeng Zhao
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China,Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China,CONTACT Guangfeng Zhao Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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Dai R, Zhang L, Jin H, Wang D, Cheng M, Sang T, Peng C, Li Y, Wang Y. Autophagy in renal fibrosis: Protection or promotion? Front Pharmacol 2022; 13:963920. [PMID: 36105212 PMCID: PMC9465674 DOI: 10.3389/fphar.2022.963920] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Autophagy is a process that degrades endogenous cellular protein aggregates and damaged organelles via the lysosomal pathway to maintain cellular homeostasis and energy production. Baseline autophagy in the kidney, which serves as a quality control system, is essential for cellular metabolism and organelle homeostasis. Renal fibrosis is the ultimate pathological manifestation of progressive chronic kidney disease. In several experimental models of renal fibrosis, different time points, stimulus intensities, factors, and molecular mechanisms mediating the upregulation or downregulation of autophagy may have different effects on renal fibrosis. Autophagy occurring in a single lesion may also exert several distinct biological effects on renal fibrosis. Thus, whether autophagy prevents or facilitates renal fibrosis remains a complex and challenging question. This review explores the different effects of the dual regulatory function of autophagy on renal fibrosis in different renal fibrosis models, providing ideas for future work in related basic and clinical research.
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Affiliation(s)
- Rong Dai
- Department of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Lei Zhang
- Department of Nephrology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Hua Jin
- Department of Nephrology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Dong Wang
- Department of Nephrology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Meng Cheng
- Department of Nephrology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Tian Sang
- Graduate School, Anhui University of Chinese Medicine, Hefei, China
| | - Chuyi Peng
- Graduate School, Anhui University of Chinese Medicine, Hefei, China
| | - Yue Li
- Blood Purification Center, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Yiping Wang
- Department of Nephrology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
- *Correspondence: Yiping Wang,
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Zhang Y, Mou Y, Zhang J, Suo C, Zhou H, Gu M, Wang Z, Tan R. Therapeutic Implications of Ferroptosis in Renal Fibrosis. Front Mol Biosci 2022; 9:890766. [PMID: 35655759 PMCID: PMC9152458 DOI: 10.3389/fmolb.2022.890766] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/12/2022] [Indexed: 12/13/2022] Open
Abstract
Renal fibrosis is a common feature of chronic kidney disease (CKD), and can lead to the destruction of normal renal structure and loss of kidney function. Little progress has been made in reversing fibrosis in recent years. Ferroptosis is more immunogenic than apoptosis due to the release and activation of damage-related molecular patterns (DAMPs) signals. In this paper, the relationship between renal fibrosis and ferroptosis was reviewed from the perspective of iron metabolism and lipid peroxidation, and some pharmaceuticals or chemicals associated with both ferroptosis and renal fibrosis were summarized. Other programmed cell death and ferroptosis in renal fibrosis were also firstly reviewed for comparison and further investigation.
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Affiliation(s)
- Yao Zhang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanhua Mou
- Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Jianjian Zhang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chuanjian Suo
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hai Zhou
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Min Gu
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zengjun Wang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ruoyun Tan
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Ruoyun Tan,
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9
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Wang M, Zeng F, Ning F, Wang Y, Zhou S, He J, Li C, Wang C, Sun X, Zhang D, Xiao J, Hu P, Reilly S, Xin H, Xu X, Zhang X. Ceria nanoparticles ameliorate renal fibrosis by modulating the balance between oxidative phosphorylation and aerobic glycolysis. J Nanobiotechnology 2022; 20:3. [PMID: 34983531 PMCID: PMC8725394 DOI: 10.1186/s12951-021-01122-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 11/02/2021] [Indexed: 12/19/2022] Open
Abstract
Background and aims Renal fibrosis is the common outcome in all progressive forms of chronic kidney disease. Unfortunately, the pathogenesis of renal fibrosis remains largely unexplored, among which metabolic reprogramming plays an extremely crucial role in the evolution of renal fibrosis. Ceria nanoparticles (CeNP-PEG) with strong ROS scavenging and anti-inflammatory activities have been applied for mitochondrial oxidative stress and inflammatory diseases. The present study aims to determine whether CeNP-PEG has therapeutic value for renal fibrosis. Methods The unilateral ureteral obstructive fibrosis model was used to assess the therapeutic effects in vivo. Transforming growth factor beta1-induced epithelial-to-mesenchymal transition in HK-2 cells was used as the in vitro cell model. The seahorse bioscience X96 extracellular flux analyzer was used to measure the oxygen consumption rate and extracellular acidification rate. Results In the present study, CeNP-PEG treatment significantly ameliorated renal fibrosis by increased E-cadherin protein expression, and decreased α-SMA, Vimentin and Fibronectin expression both in vitro and in vivo. Additionally, CeNP-PEG significantly reduced the ROS formation and improved the levels of mitochondrial ATP. The seahorse analyzer assay demonstrated that the extracellular acidification rate markedly decreased, whereas the oxygen consumption rate markedly increased, in the presence of CeNP-PEG. Furthermore, the mitochondrial membrane potential markedly enhanced, hexokinase 1 and hexokinase 2 expression significantly decreased after treatment with CeNP-PEG. Conclusions CeNP-PEG can block the dysregulated metabolic status and exert protective function on renal fibrosis. This may provide another therapeutic option for renal fibrosis. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01122-w.
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Affiliation(s)
- Mengling Wang
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Feng Zeng
- Artemisinin Research Center, Institute of Science and Technology, The First Clinical Medical School, Lingnan Medical Research Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Fengling Ning
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Yinhang Wang
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Shilin Zhou
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Jiaqi He
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Cong Li
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Cong Wang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Shanghai, China, Academy for Engineering and Technology, Fudan University, 20 Handan Road, Yangpu District, Shanghai, 200433, China
| | - Xiaolin Sun
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Dongliang Zhang
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Jisheng Xiao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Ping Hu
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China
| | - Svetlana Reilly
- Division of Cardiovascular Medicine, Department of Medicine, University of Oxford, John Radcliffe Hospital, RadcliffeOxford, UK
| | - Hong Xin
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China.
| | - Xudong Xu
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China.
| | - Xuemei Zhang
- Department of Pharmacology, School of Pharmacy, Minhang Hospital, Fudan University, Shanghai, 201203, China.
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10
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Raji-Amirhasani A, Khaksari M, Shahrokhi N, Soltani Z, Nazari-Robati M, Mahani FD, Hajializadeh Z, Sabet N. Comparison of the effects of different dietary regimens on susceptibility to experimental acute kidney injury: the role of SIRT1 and TGF-β1. Nutrition 2022; 96:111588. [DOI: 10.1016/j.nut.2022.111588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 12/10/2021] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
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11
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Jaikumkao K, Promsan S, Thongnak L, Swe MT, Tapanya M, Htun KT, Kothan S, Intachai N, Lungkaphin A. Dapagliflozin ameliorates pancreatic injury and activates kidney autophagy by modulating the AMPK/mTOR signaling pathway in obese rats. J Cell Physiol 2021; 236:6424-6440. [PMID: 33559163 DOI: 10.1002/jcp.30316] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/30/2020] [Accepted: 01/27/2021] [Indexed: 02/05/2023]
Abstract
Chronic consumption of a high-fat diet induces obesity and impairs the ultra-structure of organs and tissues. We examined the effect of sodium-glucose cotransporter 2 (SGLT2) inhibitor-dapagliflozin on renal and pancreatic injuries in obese condition. Rats were fed a high-fat diet for 16 weeks to induce obesity. After that, dapagliflozin or vildagliptin, 1.0 or 3.0 mg/kg/day, respectively, was administered by oral gavage for 4 weeks. The effects of dapagliflozin on insulin resistance, kidney autophagy, pancreatic oxidative stress, endoplasmic reticulum (ER) stress, inflammation, and apoptosis in high-fat diet-induced obese rats were elucidated. High-fat-diet fed rats demonstrated metabolic abnormalities including increased body weight, visceral fat weight, plasma insulin, plasma cholesterol, homeostasis model assessment (HOMA) index, and TAUCg, indicating the obese-insulin resistant and glucose intolerance conditions. Also, high-fat-diet fed rats exhibited significant pancreatic injury accompanied by decreased kidney autophagy. Dapagliflozin or vildagliptin treatment for 4 weeks ameliorated pancreatic oxidative stress, ER stress, inflammation, and apoptosis and restored kidney autophagy in obese rats. Moreover, the morphology changes of the pancreas and kidney were improved in the treated groups. Interestingly, dapagliflozin showed higher efficacy than vildagliptin in improving body weight, visceral fat weight, plasma cholesterol level, and pancreatic oxidative stress in our model. Taken together, the present study demonstrated that the therapeutic effects of dapagliflozin attenuated pancreatic injury, pancreatic oxidative stress, ER stress, inflammation, apoptosis, and exerted renoprotective effects by restoring autophagic signaling in obese rats.
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Affiliation(s)
- Krit Jaikumkao
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Center of Radiation Research and Medical Imaging, Chiang Mai University, Chiang Mai, Thailand
| | - Sasivimon Promsan
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Laongdao Thongnak
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Myat T Swe
- Department of Physiology, University of Medicine 2, Yangon, Yangon, Myanmar
| | - Monruedee Tapanya
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Khin T Htun
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Suchart Kothan
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Center of Radiation Research and Medical Imaging, Chiang Mai University, Chiang Mai, Thailand
| | - Nuttawadee Intachai
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Anusorn Lungkaphin
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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12
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Bisphenol A Modulates Autophagy and Exacerbates Chronic Kidney Damage in Mice. Int J Mol Sci 2021; 22:ijms22137189. [PMID: 34281243 PMCID: PMC8268806 DOI: 10.3390/ijms22137189] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND: Bisphenol A (BPA) is a ubiquitous environmental toxin that accumulates in chronic kidney disease (CKD). Our aim was to explore the effect of chronic exposition of BPA in healthy and injured kidney investigating potential mechanisms involved. METHODS: In C57Bl/6 mice, administration of BPA (120 mg/kg/day, i.p for 5 days/week) was done for 2 and 5 weeks. To study BPA effect on CKD, a model of subtotal nephrectomy (SNX) combined with BPA administration for 5 weeks was employed. In vitro studies were done in human proximal tubular epithelial cells (HK-2 line). RESULTS: Chronic BPA administration to healthy mice induces inflammatory infiltration in the kidney, tubular injury and renal fibrosis (assessed by increased collagen deposition). Moreover, in SNX mice BPA exposure exacerbates renal lesions, including overexpression of the tubular damage biomarker Hepatitis A virus cellular receptor 1 (Havcr-1/KIM-1). BPA upregulated several proinflammatory genes and increased the antioxidant response [Nuclear factor erythroid 2-related factor 2 (Nrf2), Heme Oxygenase-1 (Ho-1) and NAD(P)H dehydrogenase quinone 1 (Nqo-1)] both in healthy and SNX mice. The autophagy process was modulated by BPA, through elevated autophagy-related gene 5 (Atg5), autophagy-related gene 7 (Atg7), Microtubule-associated proteins 1A/1B light chain 3B (Map1lc3b/Lc3b) and Beclin-1 gene levels and blockaded the autophagosome maturation and flux (p62 levels). This autophagy deregulation was confirmed in vitro. CONCLUSIONS: BPA deregulates autophagy flux and redox protective mechanisms, suggesting a potential mechanism of BPA deleterious effects in the kidney.
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13
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Li Y, Song B, Ruan C, Xue W, Zhao J. AdipoRon Attenuates Hypertension-Induced Epithelial-Mesenchymal Transition and Renal Fibrosis via Promoting Epithelial Autophagy. J Cardiovasc Transl Res 2021; 14:538-545. [PMID: 33025271 DOI: 10.1007/s12265-020-10075-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022]
Abstract
Hypertension-induced epithelial-mesenchymal transition (EMT) is a major mechanism of renal fibrosis. Adiponectin protects against hypertension-induced target organ damage. AdipoRon is an orally active synthetic adiponectin receptor agonist. However, it is unclear whether AdipoRon could attenuate EMT and renal fibrosis in hypertensive mice. C57BJ/6J mice were utilized to induce DOCA-salt-sensitive hypertensive model. Hypertension results in an altered adiponectin expression and promotes EMT in the kidney. In vitro, AdipoRon inhibits aldosterone (Aldo)-induced EMT and promotes autophagic flux in HK-2 epithelial cells. Mechanically, AdipoRon activates AMPK/ULK1 pathway in epithelial cells. Blockade of AMPK activation, as well as inhibition of autophagy, blocks the effects of AdipoRon on Aldo-induced EMT. Moreover, AdipoRon treatment promotes autophagy and improves renal fibrosis in DOCA-salt-hypertensive mice. Our data suggest that AdipoRon could be a potential therapeutic option to prevent renal fibrosis in hypertensive patients. Graphical abstract.
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Affiliation(s)
- Yan Li
- Department of Cardiology, RuiJin Hospital/LuWan Branch, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Bei Song
- Department of General Practice, RuiJin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Chengchao Ruan
- State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - WenJie Xue
- Huangpu District Bansongyuan Road Health Service Center, Shanghai, China.
| | - Jianrong Zhao
- Department of Cardiology, RuiJin Hospital/LuWan Branch, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
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14
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Hu J, Qiao J, Yu Q, Liu B, Zhen J, Liu Y, Ma Q, Li Y, Wang Q, Wang C, Lv Z. Role of SIK1 in the transition of acute kidney injury into chronic kidney disease. J Transl Med 2021; 19:69. [PMID: 33588892 PMCID: PMC7885408 DOI: 10.1186/s12967-021-02717-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/23/2021] [Indexed: 12/20/2022] Open
Abstract
Background Acute kidney injury (AKI), with a high morbidity and mortality, is recognized as a risk factor for chronic kidney disease (CKD). AKI-CKD transition has been regarded as one of the most pressing unmet needs in renal diseases. Recently, studies have showed that salt inducible kinase 1 (SIK1) plays a role in epithelial-mesenchymal transition (EMT) and inflammation, which are the hallmarks of AKI-CKD transition. However, whether SIK1 is involved in AKI-CKD transition and by what mechanism it regulates AKI-CKD transition remains unknown. Methods We firstly detected the expression of SIK1 in kidney tissues of AKI patients and AKI mice by immunohistochemistry staining, and then we established Aristolochic acid (AA)-induced AKI-CKD transition model in C57BL/6 mice and HK2 cells. Subsequently, we performed immunohistochemistry staining, ELISA, real-time PCR, Western blot, immunofluorescence staining and Transwell assay to explore the role and underlying mechanism of SIK1 on AKI-CKD transition. Results The expression of SIK1 was down-regulated in AKI patients, AKI mice, AA-induced AKI-CKD transition mice, and HK2 cells. Functional analysis revealed that overexpression of SIK1 alleviated AA-induced AKI-CKD transition and HK2 cells injury in vivo and in vitro. Mechanistically, we demonstrated that SIK1 mediated AA-induced AKI-CKD transition by regulating WNT/β-catenin signaling, the canonical pathway involved in EMT, inflammation and renal fibrosis. In addition, we discovered that inhibition of WNT/β-catenin pathway and its downstream transcription factor Twist1 ameliorated HK2 cells injury, delaying the progression of AKI-CKD transition. Conclusions Our study demonstrated, for the first time, a protective role of SIK1 in AKI-CKD transition by regulating WNT/β-catenin signaling pathway and its downstream transcription factor Twist1, which will provide novel insights into the prevention and treatment AKI-CKD transition in the future.
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Affiliation(s)
- Jinxiu Hu
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Jiao Qiao
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Qun Yu
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Bing Liu
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Junhui Zhen
- Department of Pathology, School of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Yue Liu
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Qiqi Ma
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Yanmei Li
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Qianhui Wang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Cheng Wang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Zhimei Lv
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China. .,Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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15
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Lin X, Li J, Tan R, Zhong X, Yang J, Wang L. Identification of Hub Genes Associated with the Development of Acute Kidney Injury by Weighted Gene Co-Expression Network Analysis. Kidney Blood Press Res 2021; 46:63-73. [PMID: 33401265 DOI: 10.1159/000511661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/17/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a severe clinical syndrome, causing a profound medical and socioeconomic burden worldwide. This study aimed to explore underlying molecular targets related to the progression of AKI. METHODS A public database originated from the NCBI GEO database (serial number: GSE121190) and a well-established and unbiased method of weighted gene co-expression network analysis (WGCNA) to identify hub genes and potential pathways were used. Furthermore, the unbiased hub genes were validated in 2 classic models of AKI in a rodent model: chemically established AKI by cisplatin- and ischemia reperfusion-induced AKI. RESULTS A total of 17 modules were finally obtained by the unbiased method of WGCNA, where the genes in turquoise module displayed strong correlation with the development of AKI. In addition, the results of gene ontology revealed that the genes in turquoise module were involved in renal injury and renal fibrosis. Thus, the hub genes were further validated by experimental methods and primarily obtained Rplp1 and Lgals1 as key candidate genes related to the progression of AKI by the advantage of quantitative PCR, Western blotting, and in situ tissue fluorescence. Importantly, the expression of Rplp1 and Lgals1 at the protein level showed positive correlation with renal function, including serum Cr and BUN. CONCLUSIONS By the advantage of unbiased bioinformatic method and consequent experimental verification, this study lays the foundation basis for the pathogenesis and therapeutic agent development of AKI.
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Affiliation(s)
- Xiao Lin
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jianchun Li
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Ruizhi Tan
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Xia Zhong
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jieke Yang
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Li Wang
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China,
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16
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Xu Q, Liu L, Yang Y, Wang Z, Cai Y, Hong T, Chen P. Effects of Rab7 gene up-regulation on renal fibrosis induced by unilateral ureteral obstruction. ACTA ACUST UNITED AC 2020; 53:e9220. [PMID: 32267310 PMCID: PMC7162586 DOI: 10.1590/1414-431x20209220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 01/13/2020] [Indexed: 11/21/2022]
Abstract
Rab7, an important member of the Rab family, is closely related to autophagy, endocytosis, apoptosis, and tumor suppression but few studies have described its association with renal fibrosis. In the early stage, our group studied the effects of Rab7 on production and degradation of extracellular matrix in hypoxic renal tubular epithelial cells. Because cell culture in vitro is different from the environment in vivo, it is urgent to understand the effects in vivo. In our current study, we established a renal fibrosis model in Rab7-knock-in mice (prepared by CRISPR/Cas9 technology) and wild type (WT) C57BL/6 mice using unilateral ureteral obstruction (UUO). Seven and 14 days after UUO, the expression of the Rab7 protein in WT mice, as well as the autophagic activity, renal function, and the degree of renal fibrosis in WT and Rab7-knock-in mice were examined by blood biochemical assay, hematoxylin-eosin and Masson staining, immunohistochemistry, and western blotting. We found that the Rab7 expression in WT mice increased over time. Furthermore, the autophagic activity constantly increased in both groups, although it was higher in the Rab7-knock-in mice than in the WT mice at the same time point. Seven days after UUO, the degree of renal fibrosis was milder in the Rab7-knock-in mice than in the WT mice, but it became more severe 14 days after surgery. Similar results were found for renal function. Therefore, Rab7 suppressed renal fibrosis in mice initially, but eventually it aggravated fibrosis with the activation of autophagy.
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Affiliation(s)
- Qing Xu
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Lei Liu
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiqiong Yang
- Department of Pathology and Pathophysiology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Zhi Wang
- Department of Pathology and Pathophysiology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yingying Cai
- Department of Pathology and Pathophysiology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Tingting Hong
- Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Pingsheng Chen
- Department of Pathology and Pathophysiology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
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17
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Miao S, Lv C, Liu Y, Zhao J, Li T, Wang C, Xu Y, Wang X, Xiao X, Zhang H. Pharmacologic Blockade of 15-PGDH Protects Against Acute Renal Injury Induced by LPS in Mice. Front Physiol 2020; 11:138. [PMID: 32231583 PMCID: PMC7082810 DOI: 10.3389/fphys.2020.00138] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/11/2020] [Indexed: 01/20/2023] Open
Abstract
Prostaglandin pathway plays multiple roles in various physiological and pathological conditions. The present study aimed to investigate the effect of 15-hydroxyprostaglandin dehydrogenase (15-PGDH), a key enzyme in the degradation of prostaglandins, on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) in mice. In this study, male C57BL/6J mice were injected intraperitoneally with LPS (10 mg/kg). SW033291, a potent small-molecule inhibitor of 15-PGDH, was used to investigate the therapeutic potential of 15-PGDH inhibition on LPS-induced AKI. We discovered that the expression of 15-PGDH protein was upregulated in kidneys of LPS-stimulated mice, and it was mainly localized in the cytoplasm of renal tubular epithelial cells in renal cortex and outer medulla. SW033291 administration improved the survival rates of mice and attenuated renal injury of mice that were challenged by LPS. Additionally, inhibition of 15-PGDH also reversed LPS-induced apoptosis of renal cells, increased expression of anti-apoptotic protein Bcl-2, and downregulated expression of Fas, caspase-3, and caspase-8. Pretreatment of SW033291 enhanced autophagy in kidney cells after LPS stimulation. Our data also showed that inhibition of 15-PGDH relieved the level of lipid peroxidation and downregulated NADPH oxidase subunits induced by LPS in mice kidneys but had no significant effect on the release of inflammatory factors, such as IL-6, IL-1β, TNF-α, and MCP-1. Our study demonstrated that inhibition of 15-PGDH could alleviate LPS-induced AKI by regulating the apoptosis, autophagy, and oxidative stress rather than inflammation in mice.
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Affiliation(s)
- Shuying Miao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Pathology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
| | - Caihong Lv
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
| | - Ying Liu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
| | - Jie Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ting Li
- Department of Physiology, Changzhi Medical College, Changzhi, China
| | - Chunjiang Wang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yunfei Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
| | - Xiaoli Wang
- Department of Pathology and Pathophysiology, Jishou University, Jishou, China
| | - Xianzhong Xiao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
| | - Huali Zhang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
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18
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Ozlu H, Cakir Gundogdu A, Elmazoglu Z, Take Kaplanoglu G, Oktar L, Karasu C. Bacopa Monnieri Protects the Directly Affected Organ as Well as Distant Organs Against I/R Injury by Modulating Anti-Inflammatory and Anti-Nitrosative Pathways in A Rat Model for Infra-Renal Aortic Occlusion. J INVEST SURG 2020; 34:935-946. [PMID: 32003261 DOI: 10.1080/08941939.2020.1716118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To investigate the protective effect and underlying mechanisms of B. monnieri, a medicinal plant, on kidney and skeletal muscle injury induced by infra-renal abdominal aorta clamping for 2-hours (ischemia) and following removal of the clamp (reperfusion, 2-hours). METHODS Rats were divided into four groups (n = 6): (I) animals given only saline (sham-control); (II) animals given B. monnieri extract for 10-days (300 mg/kg/day) (Bacopa-treated sham); (III) animals subjected to ischemia/reperfusion (I/R); (IV) animals given B. monnieri extract and then subjected to I/R. Kidneys and lower extremity muscles were examined for GPx, CAT, iNOS, 3-NT, IL-1β and TNF-α. Apoptosis and injury were evaluated by TUNEL and H&E staining, respectively. RESULTS I/R resulted in TUNEL positive cells, periarterial edema and glomerular capillary dilatation, decreased GPx activity, unchanged CAT, iNOS, 3-NT, IL-1β and TNF-α in kidney. B. monnieri minimized renal remote reperfusion injury, and Group IV showed a lower degree of renal histopathology score when compared to the others. B. monnieri mitigated muscle I/R injury, decreased muscle hypertrophy, myofibril abnormalities and apoptosis. Muscle 3-NT and cytokine levels were increased by I/R, and B. monnieri inhibited iNOS and 3-NT both in sham-control and I/R groups. Muscle GPx unaffected by I/R or B. monnieri, but CAT was inhibited only in B. monnieri-treated I/R group. Muscle iNOS, 3-NT, IL-1β, TNF-α levels and CAT activity of B. monnieri-treated I/R rats were lower than those in sham-control or Bacopa-treated sham. CONCLUSIONS B. monnieri can protect the directly affected organ as well as distant organs against I/R injury by modulating anti-inflammatory and anti-nitrosative pathways.
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Affiliation(s)
- Hilal Ozlu
- Department of Cardiovascular Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Ayse Cakir Gundogdu
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Zubeyir Elmazoglu
- Department of Medical Pharmacology, Cellular Stress Response & Signal Transduction Research Laboratory, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Gulnur Take Kaplanoglu
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Levent Oktar
- Department of Cardiovascular Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Cimen Karasu
- Department of Medical Pharmacology, Cellular Stress Response & Signal Transduction Research Laboratory, Faculty of Medicine, Gazi University, Ankara, Turkey
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19
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Yiqihuoxue Formula Activates Autophagy and Offers Renoprotection in a Rat Model of Adenine-Induced Kidney Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2019:3423981. [PMID: 31949466 PMCID: PMC6948341 DOI: 10.1155/2019/3423981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/22/2019] [Accepted: 11/27/2019] [Indexed: 12/16/2022]
Abstract
Chronic kidney disease (CKD) is a worldwide health problem for which effective therapeutic methods are still lacking. Traditional Chinese medicine (TCM) has been indicated as an effective alternative treatment for kidney disease. In this study, a clinically effective therapy, yiqihuoxue (YQHX) formula, was administrated to adenine-induced kidney disease rats for 6 weeks. We found that the adenine rats displayed a significant reduction in renal function as evidenced by the increased levels of serum creatinine (Scr), blood urea nitrogen (BUN), and 24-h urinary albumin level, which were attenuated by the YQHX treatment. The glomerulosclerosis, interstitial fibrosis, arteriolosclerosis, interstitial inflammation, and tubular dilatation were reversed by the YQHX treatment in the adenine rats. Furthermore, the hepatic damage characterized by increased levels of aspartate aminotransferase and alanine aminotransferase and inflammatory cell infiltration was improved by YQHX. In addition, the number of apoptotic cells in the adenine rats was obviously reduced by the YQHX treatment as manifested by the lower expression level of cleaved caspase-3 protein. Moreover, the YQHX treatment downregulated the expression levels of fibronectin, type I collagen, α-smooth muscle actin, and TGF-β1 in the adenine rats. Furthermore, autophagy was activated by the YQHX treatment, which manifested as an increased LC3-II and Beclin-1 expression levels and a decreased p62 level. In conclusion, the YQHX formula might retard the progression of kidney disease by activating autophagy.
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Kaushal GP, Chandrashekar K, Juncos LA, Shah SV. Autophagy Function and Regulation in Kidney Disease. Biomolecules 2020; 10:E100. [PMID: 31936109 PMCID: PMC7022273 DOI: 10.3390/biom10010100] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 02/06/2023] Open
Abstract
Autophagy is a dynamic process by which intracellular damaged macromolecules and organelles are degraded and recycled for the synthesis of new cellular components. Basal autophagy in the kidney acts as a quality control system and is vital for cellular metabolic and organelle homeostasis. Under pathological conditions, autophagy facilitates cellular adaptation; however, activation of autophagy in response to renal injury may be insufficient to provide protection, especially under dysregulated conditions. Kidney-specific deletion of Atg genes in mice has consistently demonstrated worsened acute kidney injury (AKI) outcomes supporting the notion of a pro-survival role of autophagy. Recent studies have also begun to unfold the role of autophagy in progressive renal disease and subsequent fibrosis. Autophagy also influences tubular cell death in renal injury. In this review, we reported the current understanding of autophagy regulation and its role in the pathogenesis of renal injury. In particular, the classic mammalian target of rapamycin (mTOR)-dependent signaling pathway and other mTOR-independent alternative signaling pathways of autophagy regulation were described. Finally, we summarized the impact of autophagy activation on different forms of cell death, including apoptosis and regulated necrosis, associated with the pathophysiology of renal injury. Understanding the regulatory mechanisms of autophagy would identify important targets for therapeutic approaches.
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Affiliation(s)
- Gur P. Kaushal
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Kiran Chandrashekar
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Luis A. Juncos
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Sudhir V. Shah
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
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21
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Cheng FY, Lee YH, Hsu YH, Chiu IJ, Chiu YJ, Lin YF, Chiu HW. Promising therapeutic effect of thapsigargin nanoparticles on chronic kidney disease through the activation of Nrf2 and FoxO1. Aging (Albany NY) 2019; 11:9875-9892. [PMID: 31714893 PMCID: PMC6874456 DOI: 10.18632/aging.102437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 10/29/2019] [Indexed: 12/23/2022]
Abstract
Pathophysiological states cause misfolded protein accumulation in the endoplasmic reticulum (ER). Then, ER stress and the unfolded protein response (UPR) are activated. Targeting ER stress may enhance the adaptive UPR and then protect the cell against pathogenic environments. In the present study, we utilized nanotechnology to synthesize thapsigargin nanoparticles (TG NPs) which induced ER stress and the UPR pathway, to study the role of ER stress and autophagy in chronic kidney disease (CKD). We found that the mRNA levels of ER stress- and autophagy-related molecules were elevated in the renal tissue of CKD patients compared to those of healthy individuals. Furthermore, TG NPs induced the UPR pathway and autophagy in HK-2 human kidney tubular epithelial cells. TG NPs protected HK-2 cells against oxidative stress-induced cell death through the activation of Nrf2 and FoxO1. The siRNA-mediated inhibition of Nrf2 or FoxO1 resulted in enhanced oxidative stress-induced cytotoxicity in HK-2 cells. In a mouse model of adenine diet-induced CKD, TG NPs and KIM-1-TG NPs ameliorated renal injury through the stimulation of ER stress and its downstream pathways. Our findings suggest that the induction of ER stress using pharmacological agents may offer a promising therapeutic strategy for preventing or interfering with CKD progression.
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Affiliation(s)
- Fong-Yu Cheng
- Department of Chemistry, Chinese Culture University, Taipei, Taiwan
| | - Yu-Hsuan Lee
- Department of Cosmeceutics, China Medical University, Taichung, Taiwan.,Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Ho Hsu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - I-Jen Chiu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Jhe Chiu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yuh-Feng Lin
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Chiu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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22
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Wang X, Zhao L, Ajay AK, Jiao B, Zhang X, Wang C, Gao X, Yuan Z, Liu H, Liu WJ. QiDiTangShen Granules Activate Renal Nutrient-Sensing Associated Autophagy in db/db Mice. Front Physiol 2019; 10:1224. [PMID: 31632286 PMCID: PMC6779835 DOI: 10.3389/fphys.2019.01224] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 09/09/2019] [Indexed: 12/24/2022] Open
Abstract
QiDiTangShen granules (QDTS) have been proven to reduce the proteinuria in patients with diabetic nephropathy (DN) effectively. The present study was aimed to investigate the mechanism underlying QDTS's renoprotection. The main components of QDTS were identified by ultra-high liquid chromatography-tandem mass spectrometry and pharmacological databases, among which active components were screened by oral bioavailability and drug-likeness. Their regulation on autophagy-related nutrient-sensing signal molecules (AMPK, SIRT1, and mTOR) was retrieved and analyzed through the Pubmed database. Then, db/db mice were randomly divided into three groups (model control, valsartan and QDTS), and given intragastric administration for 12 weeks, separately. Fasting and random blood glucose, body weight, urinary albumin excretion (UAE) and injury markers of liver and kidney were investigated to evaluate the effects and safety. Renal histological lesions were assessed, and the expressions of proteins related to nutrient-sensing signals and autophagy were investigated. Thirteen active components were screened from 78 components identified. Over half the components had already been reported to improve nutrient-sensing signals. QDTS significantly reduced UAE, ameliorated mesangial matrix deposition, alleviate the expression of protein and mRNA of TGF-β, α-SMA, and Col I, as well as improved the quality of mitochondria and the number of autophagic vesicles of renal tubular cells although the blood glucose was not decreased in db/db mice. Compared to the db/db group, the expression of the autophagy-inducible protein (Atg14 and Beclin1) and microtubule-associated protein 1 light chain 3-II (LC3-II) were up-regulated, autophagic substrate transporter p62 was down-regulated in QDTS group. It was also found that the expression of SIRT1 and the proportion of p-AMPK (thr172)/AMPK were increased, while the p-mTOR (ser2448)/mTOR ratio was decreased after QDTS treatment in db/db mice, which was consistent with the effect of its active ingredients on the nutrient-sensing signal pathway as reported previously. Therefore, QDTS may prevent the progression of DN by offering the anti-fibrotic effect. The renoprotection is probably attributable to the regulation of nutrient-sensing signal pathways, which activates autophagy.
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Affiliation(s)
- Xiangming Wang
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Li Zhao
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Amrendra K. Ajay
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Baihai Jiao
- Department of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Xianhui Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Health Management Center, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Chunguo Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xue Gao
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Zhongyu Yuan
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Hongfang Liu
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Wei Jing Liu
- Department of Endocrinology and Nephrology, Renal Research Institute of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
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Xue L, Pan Z, Yin Q, Zhang P, Zhang J, Qi W. Liraglutide promotes autophagy by regulating the AMPK/mTOR pathway in a rat remnant kidney model of chronic renal failure. Int Urol Nephrol 2019; 51:2305-2313. [PMID: 31531806 DOI: 10.1007/s11255-019-02274-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 08/29/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND We aimed to determine whether the glucagon-like peptide-1 receptor (GLP-1R) agonist liraglutide (LRG) could ameliorate renal function through promoting autophagy via regulating the AMPK/mTOR pathway in a rat remnant kidney model of chronic renal failure. METHODS Rats were divided into four groups (n = 10 per group) as follows: (1) sham, (2) nephrectomy (NPX), (3) LRG control (LRG control), and (4) LRG treatment (LRG). Except for rats in the sham group, all rats underwent 5/6 nephrectomy surgery to establish a remnant kidney model of chronic renal failure. In addition, rats in LRG group received LRG as a subcutaneous injection at a dose of 10 mg/kg (once daily) for 4 consecutive weeks, whereas rats in the LRG control group received treatment similar to that of rats in the LRG group, except saline was used instead of LRG. After 4 weeks of treatment, serum creatinine (Scr), blood urea nitrogen (BUN), and urinary albumin excretion were determined. Immunofluorescence assay, immunoprecipitation assay, and Western blot analysis were performed to evaluate the AMPK/mTOR pathway expression of proteins. RESULTS Nephrectomized rats (including rats in the NPX, LRG control, and LRG groups) showed higher levels of the Scr, BUN, and urinary albumin excretion, as well as down-regulation of GLP-1R, LC3-II, and AMPK phosphorylation, and up-regulation of mTOR phosphorylation when compared with rats in the sham group. However, those changes were blocked by liraglutide. CONCLUSION Liraglutide may promote autophagy through regulating the AMPK/mTOR pathway to exert renoprotective effects in a rat remnant kidney model of chronic renal failure.
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Affiliation(s)
- Lingyu Xue
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China.
| | - Zhanglei Pan
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China
| | - Qiao Yin
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China
| | - Peng Zhang
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China
| | - Jing Zhang
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China
| | - Wenwen Qi
- Department of Nephrology, The Second Affiliated Hospital of Shandong First Medical University, No. 706, Taishan Street, Taian, 271000, Shandong, China
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24
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Molecular Interactions Between Reactive Oxygen Species and Autophagy in Kidney Disease. Int J Mol Sci 2019; 20:ijms20153791. [PMID: 31382550 PMCID: PMC6696055 DOI: 10.3390/ijms20153791] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen species (ROS) are highly reactive signaling molecules that maintain redox homeostasis in mammalian cells. Dysregulation of redox homeostasis under pathological conditions results in excessive generation of ROS, culminating in oxidative stress and the associated oxidative damage of cellular components. ROS and oxidative stress play a vital role in the pathogenesis of acute kidney injury and chronic kidney disease, and it is well documented that increased oxidative stress in patients enhances the progression of renal diseases. Oxidative stress activates autophagy, which facilitates cellular adaptation and diminishes oxidative damage by degrading and recycling intracellular oxidized and damaged macromolecules and dysfunctional organelles. In this review, we report the current understanding of the molecular regulation of autophagy in response to oxidative stress in general and in the pathogenesis of kidney diseases. We summarize how the molecular interactions between ROS and autophagy involve ROS-mediated activation of autophagy and autophagy-mediated reduction of oxidative stress. In particular, we describe how ROS impact various signaling pathways of autophagy, including mTORC1-ULK1, AMPK-mTORC1-ULK1, and Keap1-Nrf2-p62, as well as selective autophagy including mitophagy and pexophagy. Precise elucidation of the molecular mechanisms of interactions between ROS and autophagy in the pathogenesis of renal diseases may identify novel targets for development of drugs for preventing renal injury.
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25
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Hou J, Rao M, Zheng W, Fan J, Law BYK. Advances on Cell Autophagy and Its Potential Regulatory Factors in Renal Ischemia-Reperfusion Injury. DNA Cell Biol 2019; 38:895-904. [PMID: 31347925 DOI: 10.1089/dna.2019.4767] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Ischemia-reperfusion injury is a major reason for acute kidney injury and various kidney diseases. Autophagy plays an important role during renal ischemia-reperfusion injury (RIRI), but it remains controversial whether autophagy contributes to cell survival or ischemia-reperfusion-induced cell death. In the review, we summarized the function of autophagy in the progression of acute ischemic kidney injury, as well as its related molecular mechanisms. While analyzing the opposite roles of autophagy in RIRI, it was concluded that the protective or detrimental function of autophagy was depending on the timing and amount of the activation of cell autophagy. We also summarized the regulatory agents, including active compounds, proteins, or microRNAs (miRNAs), which regulated the cell autophagy during renal acute ischemic kidney injury process. This explained why the opposite conclusion occurred when cell autophagy was studied in the RIRI models from different researchers. Therefore, the article provided a hypothesis to control cell autophagy at the appropriate timing and intensity so as to alleviate renal injury and sustain cell survival of the renal cell.
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Affiliation(s)
- Jing Hou
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines (Macau University of Science and Technology), Taipa, People's Republic of China.,Department of Nephrology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Mingyue Rao
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines (Macau University of Science and Technology), Taipa, People's Republic of China.,Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Wenlu Zheng
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines (Macau University of Science and Technology), Taipa, People's Republic of China.,Department of Nuclear Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Junming Fan
- Chengdu Medical College, Chengdu City, People's Republic of China.,Southwest Medical University, Luzhou, People's Republic of China
| | - Betty Yuen Kwan Law
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines (Macau University of Science and Technology), Taipa, People's Republic of China
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26
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Autophagy in Chronic Kidney Diseases. Cells 2019; 8:cells8010061. [PMID: 30654583 PMCID: PMC6357204 DOI: 10.3390/cells8010061] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 12/18/2022] Open
Abstract
Autophagy is a cellular recycling process involving self-degradation and reconstruction of damaged organelles and proteins. Current evidence suggests that autophagy is critical in kidney physiology and homeostasis. In clinical studies, autophagy activations and inhibitions are linked to acute kidney injuries, chronic kidney diseases, diabetic nephropathies, and polycystic kidney diseases. Oxidative stress, inflammation, and mitochondrial dysfunction, which are implicated as important mechanisms underlying many kidney diseases, modulate the autophagy activation and inhibition and lead to cellular recycling dysfunction. Abnormal autophagy function can induce loss of podocytes, damage proximal tubular cells, and glomerulosclerosis. After acute kidney injuries, activated autophagy protects tubular cells from apoptosis and enhances cellular regeneration. Patients with chronic kidney diseases have impaired autophagy that cannot be reversed by hemodialysis. Multiple nephrotoxic medications also alter the autophagy signaling, by which the mechanistic insights of the drugs are revealed, thus providing the unique opportunity to manage the nephrotoxicity of these drugs. In this review, we summarize the current concepts of autophagy and its molecular aspects in different kidney cells pathophysiology. We also discuss the current evidence of autophagy in acute kidney injury, chronic kidney disease, toxic effects of drugs, and aging kidneys. In addition, we examine therapeutic possibilities targeting the autophagy system in kidney diseases.
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