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Xu J, Deng Y, Ke Y, Zhu Y, Wang P, Yu Q, Li C, Shi B. Mutation of Beclin1 acetylation site at K414 alleviates high glucose-induced podocyte impairment in the early stage of diabetic nephropathy by inhibiting hyperactivated autophagy. Mol Biol Rep 2022; 49:3919-3926. [PMID: 35175505 DOI: 10.1007/s11033-022-07242-2] [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: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Our group recently reported that a mutation of the novel Beclin1 K414R acetylation site impacts the stability of Beclin1 protein, which decreases autophagy in adipocytes and further impedes adipocyte differentiation and lipolysis. This study was to explore whether Beclin1 acetylation plays a role in the early renal injury induced by high glucose and to further investigate the K414R mutation site in podocytes. METHODS Male Sprague-Dawley rats were randomized to con (control) and diabetic nephropathy (DN) groups. The DN group was induced by a single 55 mg/kg intraperitoneal injection of streptozotocin and fed a high-fat and high-sugar diet (the con group received an equal volume of the vehicle and fed a plain diet), after 3 days of induction, blood glucose levels were measured to confirm the onset of diabetes. Then, at weeks 0 and 4, the biochemical index was assayed and renal cortex tissues were harvested. MPC5 podocytes were cultured in vitro. Beclin1 (K414R)-pLVX-ZsGreen1-N1(wild-type or mutant) lentiviral plasmids were transfected into podocytes. Western blot or immunoprecipitation was used to test proteins or the acetylation levels respectively, and immunohistochemistry was used to analyze morphological changes of podocytes. Immunofluorescence was used to detect the aggregation of LC3 puncta. RESULTS The acetylation level of Beclin1 was upregulated with podocyte injury exacerbated in high glucose at 24 h and that a mutation at K414R could inhibit hyperactivated autophagy, which ameliorated podocyte impairment. CONCLUSION These findings suggest that the acetylation site at K414 is a critical molecule and drug target and that further research into this area is warranted.
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Affiliation(s)
- Jun Xu
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Yujie Deng
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, Shandong, China
| | - Yingying Ke
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai, 200233, China
| | - Yunxia Zhu
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai, 200233, China
| | - Ping Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, Shandong, China
| | - Qing Yu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, Shandong, China
| | - Chengqian Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, Shandong, China
| | - Bimin Shi
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
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2
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The Nephrotoxin Puromycin Aminonucleoside Induces Injury in Kidney Organoids Differentiated from Induced Pluripotent Stem Cells. Cells 2022; 11:cells11040635. [PMID: 35203286 PMCID: PMC8870209 DOI: 10.3390/cells11040635] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 11/17/2022] Open
Abstract
Kidney diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD), which can progress to end stage renal disease (ESRD), are a worldwide health burden. Organ transplantation or kidney dialysis are the only effective available therapeutic tools. Therefore, in vitro models of kidney diseases and the development of prospective therapeutic options are urgently needed. Within the kidney, the glomeruli are involved in blood filtration and waste excretion and are easily affected by changing cellular conditions. Puromycin aminonucleoside (PAN) is a nephrotoxin, which can be employed to induce acute glomerular damage and to model glomerular disease. For this reason, we generated kidney organoids from three iPSC lines and treated these with PAN in order to induce kidney injury. Morphological observations revealed the disruption of glomerular and tubular structures within the kidney organoids upon PAN treatment, which were confirmed by transcriptome analyses. Subsequent analyses revealed an upregulation of immune response as well as inflammatory and cell-death-related processes. We conclude that the treatment of iPSC-derived kidney organoids with PAN induces kidney injury mediated by an intertwined network of inflammation, cytoskeletal re-arrangement, DNA damage, apoptosis and cell death. Furthermore, urine-stem-cell-derived kidney organoids can be used to model kidney-associated diseases and drug discovery.
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3
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The Role of Autophagy in Anti-Cancer and Health Promoting Effects of Cordycepin. Molecules 2021; 26:molecules26164954. [PMID: 34443541 PMCID: PMC8400201 DOI: 10.3390/molecules26164954] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 12/18/2022] Open
Abstract
Cordycepin is an adenosine derivative isolated from Cordyceps sinensis, which has been used as an herbal complementary and alternative medicine with various biological activities. The general anti-cancer mechanisms of cordycepin are regulated by the adenosine A3 receptor, epidermal growth factor receptor (EGFR), mitogen-activated protein kinases (MAPKs), and glycogen synthase kinase (GSK)-3β, leading to cell cycle arrest or apoptosis. Notably, cordycepin also induces autophagy to trigger cell death, inhibits tumor metastasis, and modulates the immune system. Since the dysregulation of autophagy is associated with cancers and neuron, immune, and kidney diseases, cordycepin is considered an alternative treatment because of the involvement of cordycepin in autophagic signaling. However, the profound mechanism of autophagy induction by cordycepin has never been reviewed in detail. Therefore, in this article, we reviewed the anti-cancer and health-promoting effects of cordycepin in the neurons, kidneys, and the immune system through diverse mechanisms, including autophagy induction. We also suggest that formulation changes for cordycepin could enhance its bioactivity and bioavailability and lower its toxicity for future applications. A comprehensive understanding of the autophagy mechanism would provide novel mechanistic insight into the anti-cancer and health-promoting effects of cordycepin.
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4
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Lin Q, Banu K, Ni Z, Leventhal JS, Menon MC. Podocyte Autophagy in Homeostasis and Disease. J Clin Med 2021; 10:jcm10061184. [PMID: 33809036 PMCID: PMC7998595 DOI: 10.3390/jcm10061184] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/19/2022] Open
Abstract
Autophagy is a protective mechanism that removes dysfunctional components and provides nutrition for cells. Podocytes are terminally differentiated specialized epithelial cells that wrap around the capillaries of the glomerular filtration barrier and show high autophagy level at the baseline. Here, we provide an overview of cellular autophagy and its regulation in homeostasis with specific reference to podocytes. We discuss recent data that have focused on the functional role and regulation of autophagy during podocyte injury in experimental and clinical glomerular diseases. A thorough understanding of podocyte autophagy could shed novel insights into podocyte survival mechanisms with injury and offer potential targets for novel therapeutics for glomerular disease.
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Affiliation(s)
- Qisheng Lin
- Division of Nephrology, Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (Q.L.); (K.B.); (J.S.L.)
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China;
| | - Khadija Banu
- Division of Nephrology, Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (Q.L.); (K.B.); (J.S.L.)
- Division of Nephrology, Yale School of Medicine, New Haven, CT 06510, USA
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China;
| | - Jeremy S. Leventhal
- Division of Nephrology, Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (Q.L.); (K.B.); (J.S.L.)
| | - Madhav C. Menon
- Division of Nephrology, Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (Q.L.); (K.B.); (J.S.L.)
- Division of Nephrology, Yale School of Medicine, New Haven, CT 06510, USA
- Correspondence:
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5
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Yang XQ, Yu SY, Yu L, Ge L, Zhang Y, Hao ZH, Liu GS. Effects of tacrolimus on autophagy protein LC3 in puromycin-damaged mouse podocytes. J Int Med Res 2020; 48:300060520971422. [PMID: 33322998 PMCID: PMC7745617 DOI: 10.1177/0300060520971422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Objective To investigate the mechanism through which tacrolimus, often used to treat refractory nephropathy, protects against puromycin-induced podocyte injury. Methods An in vitro model of puromycin-induced podocyte injury was established by dividing podocytes into three groups: controls, puromycin only (PAN group), and puromycin plus tacrolimus (FK506 group). Podocyte morphology, number, apoptosis rate and microtubule associated protein 1 light chain 3 alpha (LC3) expression were compared. Results Puromycin caused podocyte cell body shrinkage and loose intercellular connections, but podocyte morphology in the FK506 group was similar to controls. The apoptosis rate was lower in the FK506 group versus PAN group. The low level of LC3 mRNA observed in untreated podocytes was decreased by puromycin treatment; however, levels of LC3 mRNA were higher in the FK506 group versus PAN group. Although LC3-I and LC3-II protein levels were decreased by puromycin, levels in the FK506 group were higher than the PAN group. Fewer podocyte autophagosomes were observed in the control and FK506 groups versus the PAN group. Cytoplasmic LC3-related fluorescence intensity was stronger in control and FK506 podocytes versus the PAN group. Conclusions Tacrolimus inhibited puromycin-induced mouse podocyte damage by regulating LC3 expression and enhancing autophagy.
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Affiliation(s)
- Xiao-Qing Yang
- Department of Paediatrics, The First Affiliated Hospital, Jinan University, Guangzhou, China.,Department of Paediatrics, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Sheng-You Yu
- Department of Paediatrics, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Li Yu
- Department of Paediatrics, The First Affiliated Hospital, Jinan University, Guangzhou, China.,Department of Paediatrics, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Lin Ge
- Department of Paediatrics, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Yao Zhang
- Department of Paediatrics, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Zhi-Hong Hao
- Department of Paediatrics, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Guo-Sheng Liu
- Department of Paediatrics, The First Affiliated Hospital, Jinan University, Guangzhou, China
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6
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Russell KL, Gorgulho CM, Allen A, Vakaki M, Wang Y, Facciabene A, Lee D, Roy P, Buchser WJ, Appleman LJ, Maranchie J, Storkus WJ, Lotze MT. Inhibiting Autophagy in Renal Cell Cancer and the Associated Tumor Endothelium. ACTA ACUST UNITED AC 2020; 25:165-177. [PMID: 31135523 PMCID: PMC10395074 DOI: 10.1097/ppo.0000000000000374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The clear cell subtype of kidney cancer encompasses most renal cell carcinoma cases and is associated with the loss of von Hippel-Lindau gene function or expression. Subsequent loss or mutation of the other allele influences cellular stress responses involving nutrient and hypoxia sensing. Autophagy is an important regulatory process promoting the disposal of unnecessary or degraded cellular components, tightly linked to almost all cellular processes. Organelles and proteins that become damaged or that are no longer needed in the cell are sequestered and digested in autophagosomes upon fusing with lysosomes, or alternatively, released via vesicular exocytosis. Tumor development tends to disrupt the regulation of the balance between this process and apoptosis, permitting prolonged cell survival and increased replication. Completed trials of autophagic inhibitors using hydroxychloroquine in combination with other anticancer agents including rapalogues and high-dose interleukin 2 have now been reported. The complex nature of autophagy and the unique biology of clear cell renal cell carcinoma warrant further understanding to better develop the next generation of relevant anticancer agents.
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Affiliation(s)
| | | | - Abigail Allen
- Bioengineering, University of Pittsburgh, Pittsburgh, PA
| | | | | | - Andrea Facciabene
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA
| | | | - Partha Roy
- Bioengineering, University of Pittsburgh, Pittsburgh, PA
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7
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Podocyte Lysosome Dysfunction in Chronic Glomerular Diseases. Int J Mol Sci 2020; 21:ijms21051559. [PMID: 32106480 PMCID: PMC7084483 DOI: 10.3390/ijms21051559] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 02/06/2023] Open
Abstract
Podocytes are visceral epithelial cells covering the outer surface of glomerular capillaries in the kidney. Blood is filtered through the slit diaphragm of podocytes to form urine. The functional and structural integrity of podocytes is essential for the normal function of the kidney. As a membrane-bound organelle, lysosomes are responsible for the degradation of molecules via hydrolytic enzymes. In addition to its degradative properties, recent studies have revealed that lysosomes may serve as a platform mediating cellular signaling in different types of cells. In the last decade, increasing evidence has revealed that the normal function of the lysosome is important for the maintenance of podocyte homeostasis. Podocytes have no ability to proliferate under most pathological conditions; therefore, lysosome-dependent autophagic flux is critical for podocyte survival. In addition, new insights into the pathogenic role of lysosome and associated signaling in podocyte injury and chronic kidney disease have recently emerged. Targeting lysosomal functions or signaling pathways are considered potential therapeutic strategies for some chronic glomerular diseases. This review briefly summarizes current evidence demonstrating the regulation of lysosomal function and signaling mechanisms as well as the canonical and noncanonical roles of podocyte lysosome dysfunction in the development of chronic glomerular diseases and associated therapeutic strategies.
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8
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Ramesh J, Ronsard L, Gao A, Venugopal B. Autophagy Intertwines with Different Diseases-Recent Strategies for Therapeutic Approaches. Diseases 2019; 7:diseases7010015. [PMID: 30717078 PMCID: PMC6473623 DOI: 10.3390/diseases7010015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 12/12/2022] Open
Abstract
Autophagy is a regular and substantial “clear-out process” that occurs within the cell and that gets rid of debris that accumulates in membrane-enclosed vacuoles by using enzyme-rich lysosomes, which are filled with acids that degrade the contents of the vacuoles. This machinery is well-connected with many prevalent diseases, including cancer, HIV, and Parkinson’s disease. Considering that autophagy is well-known for its significant connections with a number of well-known fatal diseases, a thorough knowledge of the current findings in the field is essential in developing therapies to control the progression rate of diseases. Thus, this review summarizes the critical events comprising autophagy in the cellular system and the significance of its key molecules in manifesting this pathway in various diseases for down- or upregulation. We collectively reviewed the role of autophagy in various diseases, mainly neurodegenerative diseases, cancer, inflammatory diseases, and renal disorders. Here, some collective reports on autophagy showed that this process might serve as a dual performer: either protector or contributor to certain diseases. The aim of this review is to help researchers to understand the role of autophagy-regulating genes encoding functional open reading frames (ORFs) and its connection with diseases, which will eventually drive better understanding of both the progression and suppression of different diseases at various stages. This review also focuses on certain novel therapeutic strategies which have been published in the recent years based on targeting autophagy key proteins and its interconnecting signaling cascades.
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Affiliation(s)
- Janani Ramesh
- Department of Medical Biochemistry, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai 600113, India.
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Larance Ronsard
- The Ragon Institute of Massachusetts General Hospital, The Massachusetts Institute of Technology and Harvard University, 400 Technology Square, Cambridge, MA 02140, USA.
| | - Anthony Gao
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Bhuvarahamurthy Venugopal
- Department of Medical Biochemistry, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai 600113, India.
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9
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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: 107] [Impact Index Per Article: 21.4] [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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10
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Wang L, Law HKW. Immune complexes suppressed autophagy in glomerular endothelial cells. Cell Immunol 2018; 328:1-8. [DOI: 10.1016/j.cellimm.2018.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 02/18/2018] [Accepted: 02/20/2018] [Indexed: 02/06/2023]
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11
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Desseille C, Deforges S, Biondi O, Houdebine L, D'amico D, Lamazière A, Caradeuc C, Bertho G, Bruneteau G, Weill L, Bastin J, Djouadi F, Salachas F, Lopes P, Chanoine C, Massaad C, Charbonnier F. Specific Physical Exercise Improves Energetic Metabolism in the Skeletal Muscle of Amyotrophic-Lateral- Sclerosis Mice. Front Mol Neurosci 2017; 10:332. [PMID: 29104532 PMCID: PMC5655117 DOI: 10.3389/fnmol.2017.00332] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/02/2017] [Indexed: 01/22/2023] Open
Abstract
Amyotrophic Lateral Sclerosis is an adult-onset neurodegenerative disease characterized by the specific loss of motor neurons, leading to muscle paralysis and death. Although the cellular mechanisms underlying amyotrophic lateral sclerosis (ALS)-induced toxicity for motor neurons remain poorly understood, growing evidence suggest a defective energetic metabolism in skeletal muscles participating in ALS-induced motor neuron death ultimately destabilizing neuromuscular junctions. In the present study, we report that a specific exercise paradigm, based on a high intensity and amplitude swimming exercise, significantly improves glucose metabolism in ALS mice. Using physiological tests and a biophysics approach based on nuclear magnetic resonance (NMR), we unexpectedly found that SOD1(G93A) ALS mice suffered from severe glucose intolerance, which was counteracted by high intensity swimming but not moderate intensity running exercise. Furthermore, swimming exercise restored the highly ALS-sensitive tibialis muscle through an autophagy-linked mechanism involving the expression of key glucose transporters and metabolic enzymes, including GLUT4 and glyceraldehyde-3-phosphate dehydrogenase (GAPDH). Importantly, GLUT4 and GAPDH expression defects were also found in muscles from ALS patients. Moreover, we report that swimming exercise induced a triglyceride accumulation in ALS tibialis, likely resulting from an increase in the expression levels of lipid transporters and biosynthesis enzymes, notably DGAT1 and related proteins. All these data provide the first molecular basis for the differential effects of specific exercise type and intensity in ALS, calling for the use of physical exercise as an appropriate intervention to alleviate symptoms in this debilitating disease.
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Affiliation(s)
- Céline Desseille
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Séverine Deforges
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Olivier Biondi
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Léo Houdebine
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Domenico D'amico
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Antonin Lamazière
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France
| | - Cédric Caradeuc
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Gildas Bertho
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Gaëlle Bruneteau
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Laure Weill
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Jean Bastin
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Fatima Djouadi
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - François Salachas
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France.,Hôpital de la Salpêtrière, Département des Maladies du Système Nerveux, Equipe Neurogénétique et Physiologie, Institut du Cerveau et de la Moelle, Paris, France
| | - Philippe Lopes
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France.,UFR Sciences Fondamentales Appliquées, Département STAPS, Université d'Evry-Val-d'Essonne, Evry, France
| | - Christophe Chanoine
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Charbel Massaad
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Frédéric Charbonnier
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
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12
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Autophagy in kidney disease and aging: lessons from rodent models. Kidney Int 2016; 90:950-964. [DOI: 10.1016/j.kint.2016.04.014] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 04/17/2016] [Accepted: 04/20/2016] [Indexed: 12/14/2022]
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13
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Chaudhary K, Shinde R, Liu H, Gnana-Prakasam JP, Veeranan-Karmegam R, Huang L, Ravishankar B, Bradley J, Kvirkvelia N, McMenamin M, Xiao W, Kleven D, Mellor AL, Madaio MP, McGaha TL. Amino acid metabolism inhibits antibody-driven kidney injury by inducing autophagy. THE JOURNAL OF IMMUNOLOGY 2015; 194:5713-24. [PMID: 25980011 DOI: 10.4049/jimmunol.1500277] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/17/2015] [Indexed: 11/19/2022]
Abstract
Inflammatory kidney disease is a major clinical problem that can result in end-stage renal failure. In this article, we show that Ab-mediated inflammatory kidney injury and renal disease in a mouse nephrotoxic serum nephritis model was inhibited by amino acid metabolism and a protective autophagic response. The metabolic signal was driven by IFN-γ-mediated induction of indoleamine 2,3-dioxygenase 1 (IDO1) enzyme activity with subsequent activation of a stress response dependent on the eIF2α kinase general control nonderepressible 2 (GCN2). Activation of GCN2 suppressed proinflammatory cytokine production in glomeruli and reduced macrophage recruitment to the kidney during the incipient stage of Ab-induced glomerular inflammation. Further, inhibition of autophagy or genetic ablation of Ido1 or Gcn2 converted Ab-induced, self-limiting nephritis to fatal end-stage renal disease. Conversely, increasing kidney IDO1 activity or treating mice with a GCN2 agonist induced autophagy and protected mice from nephritic kidney damage. Finally, kidney tissue from patients with Ab-driven nephropathy showed increased IDO1 abundance and stress gene expression. Thus, these findings support the hypothesis that the IDO-GCN2 pathway in glomerular stromal cells is a critical negative feedback mechanism that limits inflammatory renal pathologic changes by inducing autophagy.
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Affiliation(s)
- Kapil Chaudhary
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Rahul Shinde
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Haiyun Liu
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Jaya P Gnana-Prakasam
- Signaling and Angiogenesis Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | | | - Lei Huang
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912; Department of Radiology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912
| | - Buvana Ravishankar
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Jillian Bradley
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Nino Kvirkvelia
- Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912; and
| | - Malgorzata McMenamin
- Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912; and
| | - Wei Xiao
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912
| | - Daniel Kleven
- Department of Pathology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912
| | - Andrew L Mellor
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912; Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912; and
| | - Michael P Madaio
- Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912; and
| | - Tracy L McGaha
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA 30912; Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912; and
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14
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Kang YL, Saleem MA, Chan KW, Yung BYM, Law HKW. Trehalose, an mTOR independent autophagy inducer, alleviates human podocyte injury after puromycin aminonucleoside treatment. PLoS One 2014; 9:e113520. [PMID: 25412249 PMCID: PMC4239098 DOI: 10.1371/journal.pone.0113520] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 10/16/2014] [Indexed: 12/24/2022] Open
Abstract
Glomerular diseases are commonly characterized by podocyte injury including apoptosis, actin cytoskeleton rearrangement and detachment. However, the strategies for preventing podocyte damage remain insufficient. Recently autophagy has been regarded as a vital cytoprotective mechanism for keeping podocyte homeostasis. Thus, it is reasonable to utilize this mechanism to attenuate podocyte injury. Trehalose, a natural disaccharide, is an mTOR independent autophagy inducer. It is unclear whether trehalose alleviates podocyte injury. Therefore, we investigated the efficacy of trehalose in puromycin aminonucleoside (PAN)-treated podocytes which mimic cell damage in minimal change nephrotic syndrome in vitro. Human conditional immortalized podocytes were treated with trehalose with or without PAN. Autophagy was investigated by immunofluorescence staining for LC3 puncta and Western blotting for LC3, Atg5, p-AMPK, p-mTOR and its substrates. Podocyte apoptosis and necrosis were evaluated by flow cytometry and by measuring lactate dehydrogenase activity respectively. We also performed migration assay to examine podocyte recovery. It was shown that trehalose induced podocyte autophagy in an mTOR independent manner and without reactive oxygen species involvement. Podocyte apoptosis significantly decreased after trehalose treatment, while the inhibition of trehalose-induced autophagy abolished its protective effect. Additionally, the disrupted actin cytoskeleton of podocytes was partially reversed by trehalose, accompanying with less lamellipodias and diminished motility. These results suggested that trehalose induced autophagy in human podocytes and showed cytoprotective effects in PAN-treated podocytes.
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Affiliation(s)
- Yu-Lin Kang
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
- Department of Nephrology and Rheumatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Moin Ahson Saleem
- Academic Renal Unit, University of Bristol, Southmead Hospital, Bristol, United Kingdom
| | - Kwok Wah Chan
- Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong, China
| | - Benjamin Yat-Ming Yung
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
| | - Helen Ka-Wai Law
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
- * E-mail:
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15
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Zeng C, Fan Y, Wu J, Shi S, Chen Z, Zhong Y, Zhang C, Zen K, Liu Z. Podocyte autophagic activity plays a protective role in renal injury and delays the progression of podocytopathies. J Pathol 2014; 234:203-13. [PMID: 24870816 DOI: 10.1002/path.4382] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 05/10/2014] [Accepted: 05/20/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Caihong Zeng
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Yun Fan
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Junnan Wu
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Shaolin Shi
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Zhaohong Chen
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Yongzhong Zhong
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Changming Zhang
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
| | - Ke Zen
- JERC-MBB, State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University School of Life Sciences; Nanjing Jiangsu 210093 China
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases; Jinling Hospital, Nanjing University School of Medicine; Nanjing Jiangsu 210002 China
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