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Sola-Sevilla N, Garmendia-Berges M, Mera-Delgado MC, Puerta E. Context-dependent role of sirtuin 2 in inflammation. Neural Regen Res 2025; 20:682-694. [PMID: 38886935 DOI: 10.4103/nrr.nrr-d-23-02063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/30/2024] [Indexed: 06/20/2024] Open
Abstract
Sirtuin 2 is a member of the sirtuin family nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases, known for its regulatory role in different processes, including inflammation. In this context, sirtuin 2 has been involved in the modulation of key inflammatory signaling pathways and transcription factors by deacetylating specific targets, such as nuclear factor κB and nucleotide-binding oligomerization domain-leucine-rich-repeat and pyrin domain-containing protein 3 (NLRP3). However, whether sirtuin 2-mediated pathways induce a pro- or an anti-inflammatory response remains controversial. Sirtuin 2 has been implicated in promoting inflammation in conditions such as asthma and neurodegenerative diseases, suggesting that its inhibition in these conditions could be a potential therapeutic strategy. Conversely, arthritis and type 2 diabetes mellitus studies suggest that sirtuin 2 is essential at the peripheral level and, thus, its inhibition in these pathologies would not be recommended. Overall, the precise role of sirtuin 2 in inflammation appears to be context-dependent, and further investigation is needed to determine the specific molecular mechanisms and downstream targets through which sirtuin 2 influences inflammatory processes in various tissues and pathological conditions. The present review explores the involvement of sirtuin 2 in the inflammation associated with different pathologies to elucidate whether its pharmacological modulation could serve as an effective strategy for treating this prevalent symptom across various diseases.
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Affiliation(s)
- Noemí Sola-Sevilla
- Department of Pharmaceutical Sciences, Division of Pharmacology, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Maider Garmendia-Berges
- Department of Pharmaceutical Sciences, Division of Pharmacology, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - MCarmen Mera-Delgado
- Department of Pharmaceutical Sciences, Division of Pharmacology, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Elena Puerta
- Department of Pharmaceutical Sciences, Division of Pharmacology, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
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2
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Zhu C, Zheng R, Han X, Tang Z, Li F, Hu X, Lin R, Shen J, Pei Q, Wang R, Wei G, Peng Z, Chen W, Liang Z, Zhou Y. Knockout of integrin αvβ6 protects against renal inflammation in chronic kidney disease by reduction of pro-inflammatory macrophages. Cell Death Dis 2024; 15:397. [PMID: 38844455 PMCID: PMC11156928 DOI: 10.1038/s41419-024-06785-5] [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: 02/01/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024]
Abstract
Integrin αvβ6 holds promise as a therapeutic target for organ fibrosis, yet targeted therapies are hampered by concerns over inflammatory-related side effects. The role of αvβ6 in renal inflammation remains unknown, and clarifying this issue is crucial for αvβ6-targeted treatment of chronic kidney disease (CKD). Here, we revealed a remarkable positive correlation between overexpressed αvβ6 in proximal tubule cells (PTCs) and renal inflammation in CKD patients and mouse models. Notably, knockout of αvβ6 not only significantly alleviated renal fibrosis but also reduced inflammatory responses in mice, especially the infiltration of pro-inflammatory macrophages. Furthermore, conditional knockout of αvβ6 in PTCs in vivo and co-culture of PTCs with macrophages in vitro showed that depleting αvβ6 in PTCs suppressed the migration and pro-inflammatory differentiation of macrophages. Screening of macrophage activators showed that αvβ6 in PTCs activates macrophages via secreting IL-34. IL-34 produced by PTCs was significantly diminished by αvβ6 silencing, and reintroduction of IL-34 restored macrophage activities, while anti-IL-34 antibody restrained macrophage activities enhanced by αvβ6 overexpression. Moreover, RNA-sequencing of PTCs and verification experiments demonstrated that silencing αvβ6 in PTCs blocked hypoxia-stimulated IL-34 upregulation and secretion by inhibiting YAP expression, dephosphorylation, and nuclear translocation, which resulted in the activation of Hippo signaling. While application of a YAP agonist effectively recurred IL-34 production by PTCs, enhancing the subsequent macrophage migration and activation. Besides, reduced IL-34 expression and YAP activation were also observed in global or PTCs-specific αvβ6-deficient injured kidneys. Collectively, our research elucidates the pro-inflammatory function and YAP/IL-34/macrophage axis-mediated mechanism of αvβ6 in renal inflammation, providing a solid rationale for the use of αvβ6 inhibition to treat kidney inflammation and fibrosis.
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Affiliation(s)
- Changjian Zhu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Ruilin Zheng
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Xu Han
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Ziwen Tang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Feng Li
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Xinrong Hu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Ruoni Lin
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Jiani Shen
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Qiaoqiao Pei
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Rong Wang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China
| | - Guangyan Wei
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhenwei Peng
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wei Chen
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China.
| | - Zhou Liang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China.
| | - Yi Zhou
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
- NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University) and Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, China.
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Jin Q, Ma F, Liu T, Yang L, Mao H, Wang Y, Peng L, Li P, Zhan Y. Sirtuins in kidney diseases: potential mechanism and therapeutic targets. Cell Commun Signal 2024; 22:114. [PMID: 38347622 PMCID: PMC10860260 DOI: 10.1186/s12964-023-01442-4] [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: 08/04/2023] [Accepted: 12/12/2023] [Indexed: 02/15/2024] Open
Abstract
Sirtuins, which are NAD+-dependent class III histone deacetylases, are involved in various biological processes, including DNA damage repair, immune inflammation, oxidative stress, mitochondrial homeostasis, autophagy, and apoptosis. Sirtuins are essential regulators of cellular function and organismal health. Increasing evidence suggests that the development of age-related diseases, including kidney diseases, is associated with aberrant expression of sirtuins, and that regulation of sirtuins expression and activity can effectively improve kidney function and delay the progression of kidney disease. In this review, we summarise current studies highlighting the role of sirtuins in renal diseases. First, we discuss sirtuin family members and their main mechanisms of action. We then outline the possible roles of sirtuins in various cell types in kidney diseases. Finally, we summarise the compounds that activate or inhibit sirtuin activity and that consequently ameliorate renal diseases. In conclusion, targeted modulation of sirtuins is a potential therapeutic strategy for kidney diseases. Video Abstract.
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Affiliation(s)
- Qi Jin
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liang Peng
- China-Japan Friendship Hospital, Institute of Clinical Medical Sciences, Beijing, China.
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Clinical Medical Sciences, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Li XY, Yu JT, Dong YH, Shen XY, Hou R, Xie MM, Wei J, Hu XW, Dong ZH, Shan RR, Jin J, Shao W, Meng XM. Protein acetylation and related potential therapeutic strategies in kidney disease. Pharmacol Res 2023; 197:106950. [PMID: 37820854 DOI: 10.1016/j.phrs.2023.106950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/16/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
Kidney disease can be caused by various internal and external factors that have led to a continual increase in global deaths. Current treatment methods can alleviate but do not markedly prevent disease development. Further research on kidney disease has revealed the crucial function of epigenetics, especially acetylation, in the pathology and physiology of the kidney. Histone acetyltransferases (HATs), histone deacetylases (HDACs), and acetyllysine readers jointly regulate acetylation, thus affecting kidney physiological homoeostasis. Recent studies have shown that acetylation improves mechanisms and pathways involved in various types of nephropathy. The discovery and application of novel inhibitors and activators have further confirmed the important role of acetylation. In this review, we provide insights into the physiological process of acetylation and summarise its specific mechanisms and potential therapeutic effects on renal pathology.
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Affiliation(s)
- Xiang-Yu Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiao-Yu Shen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rui Hou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Man-Man Xie
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Jie Wei
- Department of Nephrology, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei 230601, Anhui, China
| | - Xiao-Wei Hu
- Department of Clinical Pharmacy, Anhui Provincial Children's Hospital, Hefei 230051, China
| | - Ze-Hui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Run-Run Shan
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Juan Jin
- Research Center for Translational Medicine, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Wei Shao
- School of Basic Medicine, Anhui Medical University, Hefei 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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Yang S, Yang G, Wang X, Xiang J, Kang L, Liang Z. SIRT2 alleviated renal fibrosis by deacetylating SMAD2 and SMAD3 in renal tubular epithelial cells. Cell Death Dis 2023; 14:646. [PMID: 37777567 PMCID: PMC10542381 DOI: 10.1038/s41419-023-06169-1] [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: 05/14/2023] [Revised: 09/06/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
Transforming growth factor-β (TGF-β) is the primary factor that drives fibrosis in most, if not all, forms of chronic kidney disease. In kidneys that are obstructed, specific deletion of Sirt2 in renal tubule epithelial cells (TEC) has been shown to aggravate renal fibrosis, while renal tubule specific overexpression of Sirt2 has been shown to ameliorate renal fibrosis. Similarly, specific deletion of Sirt2 in hepatocyte aggravated CCl4-induced hepatic fibrosis. In addition, we have demonstrated that SIRT2 overexpression and knockdown restrain and enhance TGF-β-induced fibrotic gene expression, respectively, in TEC. Mechanistically, SIRT2 reduced the phosphorylation, acetylation, and nuclear localization levels of SMAD2 and SMAD3, leading to inhibition of the TGF-β signaling pathway. Further studies have revealed that that SIRT2 was able to directly interact with and deacetylate SMAD2 at lysine 451, promoting its ubiquitination and degradation. Notably, loss of SMAD specific E3 ubiquitin protein ligase 2 abolishes the ubiquitination and degradation of SMAD2 induced by SIRT2 in SMAD2. Regarding SMAD3, we have found that SIRT2 interact with and deacetylates SMAD3 at lysine 341 and 378 only in the presence of TGF-β, thereby reducing its activation. This study provides initial indication of the anti-fibrotic role of SIRT2 in renal tubules and hepatocytes, suggesting its therapeutic potential for fibrosis.
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Affiliation(s)
- Shu Yang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China.
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - Guangyan Yang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China
| | - Xinyu Wang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China
| | - Jiaqing Xiang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China
| | - Lin Kang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China.
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
- The Biobank of National Innovation Center for Advanced Medical Devices, Shenzhen People's Hospital, Southern University of Science and Technology, Shenzhen, China.
| | - Zhen Liang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China.
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
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Zeng B, Liu Y, Xu J, Niu L, Wu Y, Zhang D, Tang X, Zhu Z, Chen Y, Hu L, Yu S, Yu P, Zhang J, Wang W. Future Directions in Optimizing Anesthesia to Reduce Perioperative Acute Kidney Injury. Am J Nephrol 2023; 54:434-450. [PMID: 37742618 DOI: 10.1159/000533534] [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: 05/05/2023] [Accepted: 08/01/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Perioperative acute kidney injury (AKI) is common in surgical patients and is associated with high morbidity and mortality. There are currently few options for AKI prevention and treatment. Due to its complex pathophysiology, there is no efficient medication therapy to stop the onset of the injury or repair the damage already done. Certain anesthetics, however, have been demonstrated to affect the risk of perioperative AKI in some studies. The impact of anesthetics on renal function is particularly important as it is closely related to the prognosis of patients. Some anesthetics can induce anti-inflammatory, anti-necrotic, and anti-apoptotic effects. Propofol, sevoflurane, and dexmedetomidine are a few examples of anesthetics that have protective association with AKI in the perioperative period. SUMMARY In this study, we reviewed the clinical characteristics, risk factors, and pathogenesis of AKI. Subsequently, the protective effects of various anesthetic agents against perioperative AKI and the latest research are introduced. KEY MESSAGE This work demonstrates that a thorough understanding of the reciprocal effects of anesthetic drugs and AKI is crucial for safe perioperative care and prognosis of patients. However, more complete mechanisms and pathophysiological processes still need to be further studied.
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Affiliation(s)
- Bin Zeng
- Department of Gastroenterology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yinuo Liu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China,
- The Second Clinical Medical College of Nanchang University, Nanchang, China,
| | - Jiawei Xu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Liyan Niu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Second Clinical Medical College of Nanchang University, Nanchang, China
- Huan Kui College, Nanchang University, Nanchang, China
| | - Yuting Wu
- Huan Kui College, Nanchang University, Nanchang, China
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Deju Zhang
- Huan Kui College, Nanchang University, Nanchang, China
- Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Hong Kong, Hong Kong, China
| | - Xiaoyi Tang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zicheng Zhu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yixuan Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Leilei Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shuchun Yu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Peng Yu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wenting Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
- Department of Cardiopulmonary Bypass, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Mou L, Yang L, Hou S, Wang B, Wang X, Hu L, Deng J, Liu J, Chen X, Jiang Y, Zhang W, Lei P, Wang L, Li R, Fu P, Li GB, Ma L, Yang L. Structure-Activity Relationship Studies of 2,4,5-Trisubstituted Pyrimidine Derivatives Leading to the Identification of a Novel and Potent Sirtuin 5 Inhibitor against Sepsis-Associated Acute Kidney Injury. J Med Chem 2023; 66:11517-11535. [PMID: 37556731 DOI: 10.1021/acs.jmedchem.3c01031] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Sepsis-associated acute kidney injury (AKI) is a serious clinical problem without effective drugs. Inhibition of sirtuin 5 (SIRT5) has been confirmed to protect against AKI, suggesting that SIRT5 inhibitors might be a promising therapeutic approach for AKI. Herein, structural optimization was performed on our previous compound 1 (IC50 = 3.0 μM), and a series of 2,4,5-trisubstituted pyrimidine derivatives have been synthesized. The structure-activity relationship (SAR) analysis led to the discovery of three nanomolar level SIRT5 inhibitors, of which the most potent compound 58 (IC50 = 310 nM) was demonstrated to be a substrate-competitive and selective inhibitor. Importantly, 58 significantly alleviated kidney dysfunction and pathological injury in both lipopolysaccharide (LPS)- and cecal ligation/perforation (CLP)-induced septic AKI mice. Further studies revealed that 58 regulated protein succinylation and the release of proinflammatory cytokines in the kidneys of septic AKI mice. Collectively, these results highlighted that targeting SIRT5 has a therapeutic potential against septic AKI.
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Affiliation(s)
- Luohe Mou
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Lina Yang
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Shuyan Hou
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Bo Wang
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Xinyue Wang
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lei Hu
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Jianlin Deng
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Jiayu Liu
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Xi Chen
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yingying Jiang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Weifeng Zhang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Pengcheng Lei
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Lijiao Wang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Rong Li
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Ping Fu
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Guo-Bo Li
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Liang Ma
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Lingling Yang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
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8
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Lu W, Ji H, Wu D. SIRT2 plays complex roles in neuroinflammation neuroimmunology-associated disorders. Front Immunol 2023; 14:1174180. [PMID: 37215138 PMCID: PMC10196137 DOI: 10.3389/fimmu.2023.1174180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 04/21/2023] [Indexed: 05/24/2023] Open
Abstract
Neuroinflammation and neuroimmunology-associated disorders, including ischemic stroke and neurodegenerative disease, commonly cause severe neurologic function deficits, including bradypragia, hemiplegia, aphasia, and cognitive impairment, and the pathological mechanism is not completely clear. SIRT2, an NAD+-dependent deacetylase predominantly localized in the cytoplasm, was proven to play an important and paradoxical role in regulating ischemic stroke and neurodegenerative disease. This review summarizes the comprehensive mechanism of the crucial pathological functions of SIRT2 in apoptosis, necroptosis, autophagy, neuroinflammation, and immune response. Elaborating on the mechanism by which SIRT2 participates in neuroinflammation and neuroimmunology-associated disorders is beneficial to discover novel effective drugs for diseases, varying from vascular disorders to neurodegenerative diseases.
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9
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Miao J, Huang J, Liang Y, Zhang Y, Li J, Meng P, Shen W, Li X, Wu Q, Wang X, Niu H, Tang Y, Zhou S, Zhou L. Sirtuin 6 is a key contributor to gender differences in acute kidney injury. Cell Death Discov 2023; 9:134. [PMID: 37185276 PMCID: PMC10130034 DOI: 10.1038/s41420-023-01432-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/31/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023] Open
Abstract
Acute kidney injury (AKI) is rapidly increasing nowadays and at a high risk to progress into chronic kidney disease (CKD). Of note, men are more susceptive to AKI, suggesting gender differences in AKI patients. However, the underlying mechanisms remain largely unclear. To test it, we adopted two experimental models of AKI, including ischemia/reperfusion injury and rhabdomyolysis, which were constructed in age-matched male and female mice. We found severe damages of tubular apoptosis, mitochondrial dysfunction, and loss of renal function showing in male mice, while female mice only had very mild injury. We further tested the expression of Sirtuins, and found that female mice could preserve more Sirtuin members' expression in case of kidney damage. Among Sirtuin family, Sirtuin 6 was maximally preserved in injured kidney in female mice, suggesting its important role involved in the gender differences of AKI pathogenesis. We then found that knockdown of androgen receptor (AR) attenuated tubular damage, mitochondrial dysfunction and retarded the loss of renal function. Overexpression of Sirtuin 6 also showed similar results. Furthermore, in cultured tubular cells, dihydrotestosterone (DHT) decreased Sirtuin 6 expression and exacerbated cell apoptosis. Ectopic expression of Sirtuin 6 sufficiently inhibited DHT-induced cell apoptosis. Mechanically, we found AR inhibited Sirtuin 6, leading to the repression of binding of Sirtuin 6 with PGC-1α. This resulted in acetylation of PGC-1α and inhibition of its activity, further triggered the loss of mitochondrial homeostasis. Our results provided new insights to the underlying mechanisms of gender differences in AKI, suggesting Sirtuin 6 maybe a new therapeutic target for preventing AKI in male patients.
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Affiliation(s)
- Jinhua Miao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiewu Huang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ye Liang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yunfang Zhang
- Department of Nephrology, Huadu District People's Hospital, Southern Medical University, Guangzhou, China
| | - Jiemei Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ping Meng
- Department of Nephrology, Huadu District People's Hospital, Southern Medical University, Guangzhou, China
| | - Weiwei Shen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaolong Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qinyu Wu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoxu Wang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hongxin Niu
- Department of General Practice, Special Medical Service Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
| | - Ying Tang
- Department of Nephrology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.
| | - Shan Zhou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Lili Zhou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Nephrology, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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10
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Zhang Y, Zhang N, Zou Y, Song C, Cao K, Wu B, You S, Lu S, Wang D, Xu J, Huang X, Zhang P, Fan Z, Liu J, Cheng Z, Zhang Z, Kong C, Cao L, Sun Y. Deacetylation of Septin4 by SIRT2 (Silent Mating Type Information Regulation 2 Homolog-2) Mitigates Damaging of Hypertensive Nephropathy. Circ Res 2023; 132:601-624. [PMID: 36786216 PMCID: PMC9977266 DOI: 10.1161/circresaha.122.321591] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
BACKGROUND Hypertension can lead to podocyte damage and subsequent apoptosis, eventually resulting in glomerulosclerosis. Although alleviating podocyte apoptosis has clinical significance for the treatment of hypertensive nephropathy, an effective therapeutic target has not yet been identified. The function of septin4, a proapoptotic protein and an important marker of organ damage, is regulated by post-translational modification. However, the exact role of septin4 in regulating podocyte apoptosis and its connection to hypertensive renal damage remains unclear. METHODS We investigated the function and mechanism of septin4 in hypertensive nephropathy to discover a theoretical basis for targeted treatment. Mouse models including Rosa 26 (Gt(ROSA)26Sor)-SIRT2 (silent mating type information regulation 2 homolog-2)-Flag-TG (transgenic) (SIRT2-TG) mice SIRT2-knockout, and septin4-K174Q mutant mice, combined with proteomic and acetyl proteomics analysis, followed by multiple molecular biological methodologies, were used to demonstrate mechanisms of SIRT2-mediated deacetylation of septin4-K174 in hypertensive nephropathy. RESULTS Using transgenic septin4-K174Q mutant mice treated with the antioxidant Tempol, we found that hyperacetylation of the K174 site of septin4 exacerbates Ang II (angiotensin II)- induced hypertensive renal injury resulting from oxidative stress. Proteomics and Western blotting assays indicated that septin4-K174Q activates the cleaved-PARP1 (poly [ADP-ribose] polymerase family, member 1)-cleaved-caspase3 pathway. In septin4-knockdown human renal podocytes, septin4-K174R, which mimics deacetylation at K174, rescues podocyte apoptosis induced by Ang II. Immunoprecipitation and mass spectrometry analyses identified SIRT2 as a deacetylase that interacts with the septin4 GTPase domain and deacetylates septin4-K174. In Sirt2-deficient mice and SIRT2-knockdown renal podocytes, septin4-K174 remains hyperacetylated and exacerbates hypertensive renal injury. By contrast, in Rosa26-Sirt2-Flag (SIRT2-TG) mice and SIRT2-knockdown renal podocytes reexpressing wild-type SIRT2, septin4-K174 is hypoacetylated and mitigates hypertensive renal injury. CONCLUSIONS Septin4, when activated through acetylation of K174 (K174Q), promotes hypertensive renal injury. Septin4-K174R, which mimics deacetylation by SIRT2, inhibits the cleaved-PARP1-cleaved-caspase3 pathway. Septin4-K174R acts as a renal protective factor, mitigating Ang II-induced hypertensive renal injury. These findings indicate that septin4-K174 is a potential therapeutic target for the treatment of hypertensive renal injury.
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Affiliation(s)
- Ying Zhang
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China.,Institute of Health Sciences, China Medical University (Y.Z., N.Z., Y.S.)
| | - Naijin Zhang
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China.,Institute of Health Sciences, China Medical University (Y.Z., N.Z., Y.S.).,Key Laboratory of Reproductive and Genetic Medicine (China Medical University), National Health Commission, Shenyang, China (N.Z.)
| | - Yuanming Zou
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Chunyu Song
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Kexin Cao
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Boquan Wu
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Shilong You
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Saien Lu
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Dong Wang
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Jiaqi Xu
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Xinyue Huang
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Pengyu Zhang
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Zihao Fan
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Jingwei Liu
- College of Basic Medical Science; Key Laboratory of Medical Cell Biology, Ministry of Education; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China (J.L., L.C.)
| | | | - Zhe Zhang
- Department of Urology (Z.Z., C.K.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Chuize Kong
- Department of Urology (Z.Z., C.K.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Liu Cao
- College of Basic Medical Science; Key Laboratory of Medical Cell Biology, Ministry of Education; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China (J.L., L.C.)
| | - Yingxian Sun
- Department of Cardiology (Y.Z., N.Z., Y.Z., C.S., K.C., B.W., S.Y., S.L., D.W., J.X., X.H., P.Z., Z.F., Y.S.), the First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China.,Institute of Health Sciences, China Medical University (Y.Z., N.Z., Y.S.)
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11
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Jin J, Chang RS, Xu S, Xia G, Wong JMJ, Fang Y, Jia P, Ding X. Aldehyde Dehydrogenase 2 Ameliorates LPS-Induced Acute Kidney Injury through Detoxification of 4-HNE and Suppression of the MAPK Pathway. J Immunol Res 2023; 2023:5513507. [PMID: 37064008 PMCID: PMC10101750 DOI: 10.1155/2023/5513507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 04/18/2023] Open
Abstract
Lipopolysaccharide (LPS)-induced septic acute kidney injury (AKI) is determined as a devastating organ dysfunction elicited by an inappropriate response to infection with high morbidity and mortality rates. Previous evidence has illustrated an indispensable role of mitochondrial aldehyde dehydrogenase 2 (ALDH2) in the pathogenesis of sepsis-induced multiorgan abnormalities. Specifically, this study investigated the potential role of ALDH2 in sepsis-induced AKI. After LPS administration, we observed a significant decline in renal function, increased inflammatory cytokines, oxidative stress, 4-hydroxy-2-nonenal (4-HNE) accumulation, and apoptosis via MAPK activation in ALDH2-/- mice; in contrast, pretreatment with Alda-1 (an ALDH2 activator) alleviated the LPS-induced dysfunctions in mice. Moreover, in vitro analysis revealed that ALDH2 overexpression in mouse tubular epithelial cells (mTECs) improved the inflammatory response, oxidative stress, 4-HNE accumulation, and apoptosis via MAPK inhibition, whereas ALDH2 knockdown in mTECs aggravated these parameters via MAPK activation. Therefore, ALDH2 may protect against LPS-induced septic AKI by suppressing 4-HNE/MAPK pathway.
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Affiliation(s)
- Jifu Jin
- Department of Cardiology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Rebecca Suchi Chang
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Sujuan Xu
- Orthopedic Research Institute of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China
- Department of Nephrology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guang Xia
- Department of Cardiology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jennifer Ming Jen Wong
- Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ping Jia
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
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12
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Peng L, Liu D, Liu H, Xia M, Wan L, Li M, Zhao J, Tang C, Chen G, Qu X, Dong Z, Liu H. Bombesin receptor-activated protein exacerbates cisplatin-induced AKI by regulating the degradation of SIRT2. Nephrol Dial Transplant 2022; 37:2366-2385. [PMID: 35488871 DOI: 10.1093/ndt/gfac164] [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: 10/17/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a public health problem with no specific therapies in the clinic and the underlying pathogenesis of AKI remains obscure. Bombesin receptor-activated protein (BRAP, C6ORF89 protein) was initially discovered as a ligand for a previously orphan G-protein-coupled receptor bombesin-like receptor-3. At present, accepted biological effects of BRAP include cell cycle progression, wound repair and the activation of histone deacetylases. However, its role in kidney disease is unknown. In this study we have investigated the role of BRAP and underlying mechanisms involved in cisplatin (CP)-induced AKI. METHODS Here we used Bc004004 (homologous of C6ORF89 in mice) knockout mice and HK2 cells to investigate the effect of BRAP on AKI in vitro and in vivo. We analyzed ChIP-Seq and RNA-Seq data to search for the upstream regulators of BRAP and downstream mediators of BRAP action in AKI. Immunostaining, real-time polymerase chain reaction (PCR), co-immunoprecipitation, a dual-luciferase reporter assay and ChIP-PCR assay were applied to reveal the upstream and downstream regulation mechanism of BRAP during cisplatin-induced AKI. RESULTS BRAP was downregulated in mice and human kidneys with AKI. Global Bc004004 deletion alleviated tubular cell apoptosis and necroptosis in CP-induced AKI mice, whereas local overexpression of BRAP in kidneys aggravated them. Pan-caspase inhibitor Z-VAD pretreatment attenuated CP-induced blood creatinine increase and kidney injury in wild-type mice but not in BRAP -/- mice. The activation of mixed lineage kinase like-domain was magnified by Z-VAD in CP-treated mice, especially in BRAP -/- mice. The cytoprotective effect of Z-VAD was more substantial than necrostatin-1 (Nec-1, an inhibitor of necroptosis) in CP-treated human kidney proximal tubular epithelial (HK2) cells. Furthermore, Nec-1 pretreatment reduced the CP-induced cell death in BRAP overexpression HK2 cells but did not work in cells with normal BRAP levels. We determined that CP treatment activated the nuclear factor-κB subunit P65 and inhibition of P65 increased the messenger RNA (mRNA) levels of BRAP in HK2 cells. The chromatin immunoprecipitation assay and dual-luciferase reporter gene assay verified P65 binding to the C6ORF89 promoter and reduced its mRNA expression upon CP treatment. Next we found that sirtuin 2 (SIRT2) was downregulated in CP-induced AKI and BRAP levels directly impacted the protein levels of SIRT2. Our findings further confirmed that BRAP regulates the SIRT2 protein levels by affecting SIRT2's interactions with E3 ubiquitin ligase HRD1 and subsequent proteasomal degradation. CONCLUSIONS Our results demonstrated that BRAP played an important role in tubular cell apoptosis and necroptosis during CP-induced AKI. Safe and efficient BRAP inhibitors might be effective therapeutic options for AKI.
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Affiliation(s)
- Liang Peng
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Di Liu
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Haiyang Liu
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Ming Xia
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Lili Wan
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Mei Li
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Junyong Zhao
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Chengyuan Tang
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Guochun Chen
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
| | - Xiangpin Qu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Zheng Dong
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Hong Liu
- Department of Nephrology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
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13
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Ding Y, Wan S, Liu W, Lu Y, Xu Q, Gan Y, Yan L, Gu Y, Liu Z, Hu Y, Cao H, Shao F. Regulation Networks of Non-Coding RNA-Associated ceRNAs in Cisplatin-Induced Acute Kidney Injury. Cells 2022; 11:cells11192971. [PMID: 36230932 PMCID: PMC9563924 DOI: 10.3390/cells11192971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/08/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Cisplatin is widely used as a chemotherapeutic drug to treat various solid tumors. However, it often induces severe side effects, including nephrotoxicity, which limits its application in clinical settings. Furthermore, the underlying mechanisms of action are unclear. Here, we applied whole-transcriptome RNA sequencing to a cisplatin-induced acute kidney injury (CP-AKI) mouse model to evaluate competing endogenous RNA (ceRNA) networks. We found 4460 mRNAs, 1851 long non-coding RNAs, 101 circular RNAs, and 102 microRNAs significantly differentially expressed between CP-AKI and control mice. We performed gene set enrichment analysis to reveal the biological functions of the mRNAs and constructed non-coding RNA-associated ceRNA networks in CP-AKI mice. Two ceRNA regulatory pathways, Lhx1os-203/mmu-miR-21a-3p/Slc7a13 and circular RNA_3907/mmu-miR-185-3p/Ptprn, were validated using quantitative real-time PCR. The protein–protein interaction network indicated that Il6, Cxcl1, Cxcl2, and Plk1 serve as hub genes and are highly connected with the inflammatory response or DNA damage. Transcription factors, such as Stat3, Cebpb, and Foxm1, regulate gene expression levels in CP-AKI. Our study provides insight into non-coding RNA-associated ceRNA networks and mRNAs in CP-AKI and identifies potential treatment targets.
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Affiliation(s)
- Yun Ding
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Shengfeng Wan
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Wenna Liu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Yanfang Lu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Qin Xu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Yujin Gan
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Lei Yan
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Yue Gu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Ziyang Liu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Yifeng Hu
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Huixia Cao
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Correspondence: (H.C.); (F.S.)
| | - Fengmin Shao
- Henan Provincial Key Laboratory of Kidney Disease and Immunology, Henan Provincial Clinical Research Center for Kidney Disease, Department of Nephrology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou 450003, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
- Correspondence: (H.C.); (F.S.)
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14
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Liu T, Yang L, Mao H, Ma F, Wang Y, Li S, Li P, Zhan Y. Sirtuins as novel pharmacological targets in podocyte injury and related glomerular diseases. Biomed Pharmacother 2022; 155:113620. [PMID: 36122519 DOI: 10.1016/j.biopha.2022.113620] [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: 06/03/2022] [Revised: 08/10/2022] [Accepted: 08/27/2022] [Indexed: 11/29/2022] Open
Abstract
Podocyte injury is a major cause of proteinuria in kidney diseases, and persistent loss of podocytes leads to rapid irreversible progression of kidney disease. Sirtuins, a class of nicotinamide adenine dinucleotide-dependent deacetylases, can promote DNA repair, modify transcription factors, and regulate the cell cycle. Additionally, sirtuins play a critical role in renoprotection, particularly against podocyte injury. They also have pleiotropic protective effects on podocyte injury-related glomerular diseases, such as improving the immune inflammatory status and oxidative stress levels, maintaining mitochondrial homeostasis, enhancing autophagy, and regulating lipid metabolism. Sirtuins deficiency causes podocyte injury in different glomerular diseases. Studies using podocyte sirtuin-specific knockout and transgenic models corroborate this conclusion. Of note, sirtuin activators have protective effects in different podocyte injury-related glomerular diseases, including diabetic kidney disease, focal segmental glomerulosclerosis, membranous nephropathy, IgA nephropathy, and lupus nephritis. These findings suggest that sirtuins are promising therapeutic targets for preventing podocyte injury. This review provides an overview of recent advances in the role of sirtuins in kidney diseases, especially their role in podocyte injury, and summarizes the possible rationale for sirtuins as targets for pharmacological intervention in podocyte injury-related glomerular diseases.
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Affiliation(s)
- Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shen Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Medical Science, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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15
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Kundu A, Gali S, Sharma S, Park JH, Kyung SY, Kacew S, Kim IS, Lee KY, Kim HS. Tenovin-1 Ameliorates Renal Fibrosis in High-Fat-Diet-Induced Diabetic Nephropathy via Antioxidant and Anti-Inflammatory Pathways. Antioxidants (Basel) 2022; 11:antiox11091812. [PMID: 36139886 PMCID: PMC9495519 DOI: 10.3390/antiox11091812] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
High-fat diet (HFD)-induced obesity has been involved in the development of diabetic nephropathy (DN). Tenovin-1, a potent selective SIRT1/2 inhibitor, regulates various target proteins. The present study evaluated the protective effect of Tenovin-1 against renal fibrosis in HFD-induced Zucker diabetic fatty (ZDF) rats. Rats were fed a normal chow diet or HFD. Tenovin-1 (45 mg/kg) administered to HFD-fed rats decreased inflammatory cytokine expression in the serum of the rats. The antioxidant status and oxidative damage to lipids or DNA were significantly restored by Tenovin-1. Additionally, Tenovin-1 reduced the levels of blood urea nitrogen (BUN), serum creatinine (sCr), microalbumin, and urinary protein-based biomarkers in the urine of HFD-fed rats. The abnormal architecture of the kidney and pancreas was restored by Tenovin-1 administration. Tenovin-1 also reduced apoptosis in the kidneys of the HFD-fed rats and HG-treated NRK-52E cells. It significantly lowered the levels of ECM proteins in the kidneys of HFD-fed rats and HG-treated NRK-52E cells. Additionally, Tenovin-1 markedly reduced claudin-1, SIRT1, and SIRT2, but increased SIRT3 and SIRT4 in HFD-fed rats and NRK-52E cells treated with HG. Furthermore, Tenovin-1 altered epidermal growth factor receptor (EGFR), platelet-derived growth factor receptor-β (PDGFR-β), and signal transducer and activator of transcription 3 (STAT3) levels in the kidneys of HFD-fed rats. Conclusively, this study shows that Tenovin-1 can be a potential candidate drug for the treatment of HFD-induced renal fibrosis, in vivo and in vitro models.
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Affiliation(s)
- Amit Kundu
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - Sreevarsha Gali
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - Swati Sharma
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - Jae Hyeon Park
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - So Young Kyung
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - Sam Kacew
- McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
| | - Kwang Youl Lee
- College of Pharmacy, Chonnam National University, Yongbong-ro, Buk-gu, Gwangju 61186, Korea
- Correspondence: (K.Y.L.); (H.S.K.)
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Korea
- Correspondence: (K.Y.L.); (H.S.K.)
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16
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P06-21 MEHP treatment induces a decrease in SIRT1 expression, mitochondrial dysfunction, and transcriptomic alterations in the human trophoblastic cell line HTR-8/svneo. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Huang C, Jiang S, Gao S, Wang Y, Cai X, Fang J, Yan T, Craig Wan C, Cai Y. Sirtuins: Research advances on the therapeutic role in acute kidney injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 101:154122. [PMID: 35490494 DOI: 10.1016/j.phymed.2022.154122] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/28/2022] [Accepted: 04/17/2022] [Indexed: 05/28/2023]
Abstract
BACKGROUND Acute kidney injury (AKI), a common multidisciplinary diagnostic clinical critical illness, eventually causes end-stage renal disease (ESRD). Although many clinical measures have been taken to prevent or treat AKI, high morbidity and death rates were recorded. Therefore, in-depth pathogenesis study and search for new therapeutic targets are in demand. Interestingly, the suirtuins family showed a significant protective effect in AKI. Sirtuins (SIRT1-7) is a family of seven proteins with NAD+-dependent type III histone deacetylase activity. Sirtuins family members were involved by AKI, and regulation of sirtuins activities significantly improved AKI-induced renal injury. Therefore, the therapeutic role and molecular mechanisms of the sirtuins family in AKI has important research implications for clinical applications or basic research. PURPOSE This review summarizes recent advances in the roles and functions of the sirtuins family, discusses their therapeutic effects on AKI and related molecular mechanisms, and the mechanisms of action of small molecule specific activators or inhibitors sirtuins in the prevention and treatment of AKI were discussed. METHODS The data in this review were retrieved from various scientific databases (PubMed, Google scholar, Science Direct, and Web of Science), till December 2021. The keywords were used as follows: "Sirtuins", "Acute kidney injury", "AKI", "Sirtuins modulators" and "Histone deacetylation". The retrieved data followed PRISMA criteria (preferred reporting items for systematic review). RESULTS Growing evidence indicates that members of the sirtuins family regulate the development and progression of different renal diseases, including AKI, through anti-inflammation, antioxidation, anti-apoptotic, and maintenance of mitochondrial homeostasis. The molecular mechanism of Sirtuins family on AKI mainly regulated NF-κB, JNK/ERK, and AMPK/mTOR signaling pathways, upregulated the expression of PGC-1α, HO-1, NRF2, Bcl-2, OPA1, and AMPK, and downregulated the expression of NRLP3, IL-1β, TNF-α, IL-6, ROS, MFF, Drp1, Bax, ERK, and mTOR. In addition, the active ingredients of herbs (resveratrol, thujaplicins, huperzine, and curcumin) could activate the activity of SIRT1 or SIRT3, thereby improving AKI. Meanwhile, the synthetic Sirtuins inhibitor (AK-1) inhibited SIRT2 activity, thus alleviating AKI. In the future, more specific modulators will remain needed to enhance the clinical therapeutic role of the Sirtuins family in AKI. CONCLUSION The sirtuins family is a promising type III histone deacetylase for AKI treatment. This review will provide insight into sirtuins family's therapeutic role in AKI and promote the clinical use of sirtuins modulators in AKI.
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Affiliation(s)
- Chaoming Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Shisheng Jiang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Shuhan Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Yuxin Wang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Xiaoting Cai
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Junyan Fang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China
| | - Tingdong Yan
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PR China.
| | - Chunpeng Craig Wan
- Research Center of Tea and Tea Culture, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, PR China.
| | - Yi Cai
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, PR China.
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18
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Akhter N, Kochumon S, Hasan A, Wilson A, Nizam R, Al Madhoun A, Al-Rashed F, Arefanian H, Alzaid F, Sindhu S, Al-Mulla F, Ahmad R. IFN-γ and LPS Induce Synergistic Expression of CCL2 in Monocytic Cells via H3K27 Acetylation. J Inflamm Res 2022; 15:4291-4302. [PMID: 35923906 PMCID: PMC9343018 DOI: 10.2147/jir.s368352] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/02/2022] [Indexed: 11/23/2022] Open
Abstract
Background Overexpression of CCL2 (MCP-1) has been implicated in pathogenesis of metabolic conditions, such as obesity and T2D. However, the mechanisms leading to increased CCL2 expression in obesity are not fully understood. Since both IFN-γ and LPS levels are found to be elevated in obesity and shown to be involved in the regulation of metabolic inflammation and insulin resistance, we investigated whether these two agents could synergistically trigger the expression of CCL2 in obesity. Methods Monocytes (Human monocytic THP-1 cells) were stimulated with IFN-γ and LPS. CCL2 gene expression was determined by real-time RT-PCR. CCL2 protein was determined by ELISA. Signaling pathways were identified by using epigenetic inhibitors and STAT1 siRNA. Acetylation of H3K27 was analyzed by Western blotting. The acetylation level of histone H3K27 in the transcriptional initiation region of CCL2 gene was determined by ChIP-qPCR. Results Our results show that the co-incubation of THP-1 monocytes with IFN-γ and LPS significantly enhanced the expression of CCL2, compared to treatment with IFN-γ or LPS alone. Similar results were obtained using primary monocytes and macrophages. Interestingly, IFN-γ priming was found to be more effective than LPS priming in inducing synergistic expression of CCL2. Moreover, STAT1 deficiency significantly suppressed this synergy for CCL2 expression. Mechanistically, we showed that IFN-γ priming induced acetylation of lysine 27 on histone 3 (H3K27ac) in THP-1 cells. Chromatin immunoprecipitation (ChIP) assay followed by qRT-PCR revealed increased H3K27ac at the CCL2 promoter proximal region, resulting in stabilized gene expression. Furthermore, inhibition of histone acetylation with anacardic acid suppressed this synergistic response, whereas trichostatin A (TSA) could substitute IFN-γ in this synergy. Conclusion Our findings suggest that IFN-γ, in combination with LPS, has the potential to augment inflammation via the H3K27ac-mediated induction of CCL2 in monocytic cells in the setting of obesity.
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Affiliation(s)
- Nadeem Akhter
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Shihab Kochumon
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Amal Hasan
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ajit Wilson
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheeba Nizam
- Genetics & Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ashraf Al Madhoun
- Genetics & Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
- Animal and Imaging Core Facility, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fatema Al-Rashed
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Hossein Arefanian
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fawaz Alzaid
- Genetics & Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
- Institut Necker Enfants Malades (INEM), French Institute of Health and Medical Research (INSERM), Immunity & Metabolism of Diabetes (IMMEDIAB), Université de Paris Cité, Paris, France
| | - Sardar Sindhu
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Animal and Imaging Core Facility, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheed Ahmad
- Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Correspondence: Rasheed Ahmad, Immunology & Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait, Tel +965 2224 2999 Ext. 4311, Email
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19
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Jia P, Xu S, Ren T, Pan T, Wang X, Zhang Y, Zou Z, Guo M, Zeng Q, Shen B, Ding X. LncRNA IRAR regulates chemokines production in tubular epithelial cells thus promoting kidney ischemia-reperfusion injury. Cell Death Dis 2022; 13:562. [PMID: 35732633 PMCID: PMC9217935 DOI: 10.1038/s41419-022-05018-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 02/07/2023]
Abstract
Increasing evidence demonstrates that long noncoding RNAs (lncRNAs) play an important role in several pathogenic processes of the kidney. However, functions of lncRNAs in ischemic acute kidney injury (AKI) remain undefined. In this study, global lncRNA profiling indicated that many lncRNA transcripts were deregulated in kidney after ischemia reperfusion (IR). Among them, we identified IRAR (ischemia-reperfusion injury associated RNA) as a potential lncRNA candidate, which was mostly expressed by the tubular epithelial cells (TECs) after IR, involved in the development of AKI. GapmeR-mediated silencing and viral-based overexpression of IRAR were carried out to assess its function and contribution to IR-induced AKI. The results revealed that in vivo silencing of IRAR significantly reduced IR-induced proinflammatory cells infiltration and AKI. IRAR overexpression induced chemokine CCL2, CXCL1 and CXCL2 expression both in mRNA and protein levels in TECs, while, silencing of IRAR resulted in downregulation of these chemokines. RNA immunoprecipitation and RNA pulldown assay validated the association between IRAR and CCL2, CXCL1/2. Further examination revealed that specific ablation of CCL2 in TECs reduced macrophages infiltration and proinflammatory cytokine production, attenuated renal dysfunction in IR mice. Inhibition of CXC chemokine receptor 2 (receptor of CXCL1/2) reduced neutrofils infiltration, but had no overt effect on kidney function. To explore the mechanism of IRAR upregulation in kidney during IR, we analyzed promoter region of IRAR and predicted a potential binding site for transcription factor C/EBP β on IRAR promoter. Silencing of C/EBP β reduced IRAR expression in TECs. A dual-luciferase reporter assay and chromatin immunoprecipitation (ChIP) confirmed that IRAR was a transcriptional target of the C/EBP β. Altogether, our findings identify IRAR as a new player in the development of ischemic AKI through regulating chemokine production and immune cells infiltration, suggesting that IRAR is a potential target for prevention and/or attenuation of AKI.
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Affiliation(s)
- Ping Jia
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China ,Shanghai Medical Center of Kidney, Shanghai, China ,Kidney and Dialysis Institute of Shanghai, Shanghai, China ,Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China
| | - Sujuan Xu
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ting Ren
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tianyi Pan
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoyan Wang
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunlu Zhang
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhouping Zou
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Man Guo
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qi Zeng
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bo Shen
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China ,Kidney and Dialysis Institute of Shanghai, Shanghai, China
| | - Xiaoqiang Ding
- grid.8547.e0000 0001 0125 2443Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China ,Shanghai Medical Center of Kidney, Shanghai, China ,Kidney and Dialysis Institute of Shanghai, Shanghai, China ,Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China ,Hemodialysis quality control center of Shanghai, Shanghai, China
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20
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Jia P, Xu SJ, Wang X, Wu X, Ren T, Zou Z, Zeng Q, Shen B, Ding X. Chemokine CCL2 from proximal tubular epithelial cells contributes to sepsis-induced acute kidney injury. Am J Physiol Renal Physiol 2022; 323:F107-F119. [PMID: 35658715 DOI: 10.1152/ajprenal.00037.2022] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Damage-associated molecular patterns secreted from activated kidney cells initiate inflammatory response, a critical step in the development of sepsis-induced acute kidney injury (AKI). However, the underlying mechanism remains to be clarified. Here, we established a mouse model of sepsis-induced AKI through intraperitoneal injection of lipopolysaccharide (LPS), and demonstrated that LPS induced dramatical upregulation of C-C motif chemokine ligand 2 (CCL2) at both the mRNA and the protein levels in kidney, which was mainly expressed by tubular epithelial cells (TECs), especially by proximal TECs. Proximal tubule-specific ablation of CCL2 reduced LPS-induced macrophage infiltration, proinflammatory cytokine expression, and attenuated AKI. In vitro, using transwell migration assay, we found that deficiency of CCL2 in TECs decreased macrophage migration ability. However, myeloid-specific depletion of CCL2 could not protect the kidneys from the aforementioned effects. Mechanistically, LPS activated toll like receptor (TLR) 2 signaling in TECs, which induced activation of its downstream effector nuclear factor (NF)-κB. Blockade of TLR2 signaling or inhibition of NF-κB activation in TECs significantly suppressed LPS-induced CCL2 expression. Furthermore, ChIP analyses confirmed a direct binding of NF-κB p65 in the CCL2 promoter regein, and LPS increased the binding of NF-κB p65 to CCL2 promoter, suggesting that TLR2/NF-κB p65 regulates CCL2 expression in TECs. Together, these results demonstrate that endogenous CCL2 released from PTECs, not from myeloid cells was responsible for sepsis-induced kidney inflammation and AKI. Specificly targeting tubular TLR2/NF-κB/CCL2 signaling may be a potential therapeutic strategy for prevention or attenuation of septic AKI.
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Affiliation(s)
- Ping Jia
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Su-Juan Xu
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoyan Wang
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoli Wu
- Traditional Chinese Medicine Pharmacology Laboratory, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ting Ren
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhouping Zou
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qi Zeng
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bo Shen
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoqiang Ding
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney, Shanghai, China.,Kidney and Dialysis Institute of Shanghai, Shanghai, China.,Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China.,Hemodialysis quality control center of Shanghai, Shanghai, China
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21
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Chen YY, Ding Y, Li LL, Han SS, Huang M, Wong CCL, Yu F, Zhao MH. Proteomic profiling of kidney samples in patients with pure membranous and proliferative lupus nephritis. Lupus 2022; 31:837-847. [PMID: 35446734 DOI: 10.1177/09612033221094711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Renal injury in lupus nephritis (LN) does not manifest as one uniform entity. The clinical presentation, management, and prognosis of membranous LN (MLN) differ from that of the proliferative LN (PLN). Differentiating the molecular mechanisms involved in MLN and PLN and discovering the reliable biomarkers for early diagnosis and target therapy are important. We compared the kidney protein expression patterns of 11 pure MLN and 12 pure PLN patients on formalin-fixed paraffin-embedded (FFPE) kidney tissues using label-free liquid chromatography-mass spectrometry (LC-MS) for quantitative proteomics analysis. FunRich software was used to identify proteins in differentially expressed pathways. Quantitative comparisons of differentially expressed proteins in each patient were further analyzed based on protein intensity levels determined by LC-MS. The protein-protein interaction (PPI) network of the differentially expressed genes (DEGs) was established through Search Tool for the Retrieval of Interacting Genes database (STRING) website, visualized by Cytoscape. A total of 5112 proteins were identified. In total, 12 significantly upregulated (fold change ≥2, p < 0.05) proteins were identified in the MLN group and 220 proteins (fold change ≥2, p < 0.05) were upregulated in the PLN group. Further analysis showed that the most significant upregulated pathway involved in MLN was histone deacetylase (HDAC) class I pathway, and the three most significant upregulated pathways in PLN were interferon signaling, interferon gamma signaling, and the immune system. Next, we selected sirtuin-2 (SIRT2) in MLN, and vascular cell adhesion protein 1 (VCAM1) and Bcl-xl in PLN for further mass spectrometry (MS) intensity and PPI analysis. SIRT2 expression was significantly increased in the MLN group compared with the PLN group, and VCAM1, Bcl-xl expression was significantly increased in the PLN group compared with the MLN group, based on MS intensity. These results may help to improve our understanding of the underlying molecular mechanisms of MLN and PLN and provide potential targets for the diagnosis and treatment of different subclasses of LN.
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Affiliation(s)
- Yun-Ying Chen
- Renal Division, Department of medicine, Peking University First Hospital; Institute of Nephrology, 26447Peking University, Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR, China
| | - Ying Ding
- Department of Nephrology, Peking University International Hospital, Beijing, P.R. China
| | - Lin-Lin Li
- Renal Division, Department of medicine, Peking University First Hospital; Institute of Nephrology, 26447Peking University, Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR, China
| | - Sha-Sha Han
- Department of Nephrology, 117555Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Min Huang
- State Key Laboratory of Natural and Biomimeric Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Catherine C L Wong
- State Key Laboratory of Natural and Biomimeric Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Feng Yu
- Renal Division, Department of medicine, Peking University First Hospital; Institute of Nephrology, 26447Peking University, Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR, China.,Department of Nephrology, Peking University International Hospital, Beijing, P.R. China
| | - Ming-Hui Zhao
- Renal Division, Department of medicine, Peking University First Hospital; Institute of Nephrology, 26447Peking University, Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR, China.,Peking-Tsinghua Center for Life Sciences, PR. China Renal Division, Department of Medicine, 26447Peking University First Hospital, Institute of Nephrology, Peking University, Beijing, China
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22
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Dou X, Yan D, Ma Z, Gao N, Shan A. Sodium butyrate alleviates LPS-induced kidney injury via inhibiting TLR2/4 to regulate rBD2 expression. J Food Biochem 2022; 46:e14126. [PMID: 35322444 DOI: 10.1111/jfbc.14126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/05/2022] [Accepted: 02/18/2022] [Indexed: 12/16/2022]
Abstract
Defensins represent an integral part of the innate immune system to ward off potential pathogens. The study used a rat model to investigate mechanisms by which sodium butyrate (NaB) regulates β-defensin to inhibit lipopolysaccharide (LPS)-induced nephrotoxicity. We found that NaB alleviated LPS-induced renal structural damage, as judged by reduced renal lesions and improved glomerular vascular structure. In addition, elevated levels of indicators of kidney damage creatinine and blood urine nitrogen, inflammatory mediators TNF-α, and IL-6 dropped after NaB administration. Rat β-defensin 2 (rBD2), as estimated by mRNA level, was significantly higher in LPS-treated kidneys, whereas the changes of rBD2 reduced in NaB-treated kidneys. In addition, NaB alleviated LPS-induced increase in TLRs mRNA expression. Mechanistically, the present study indicates that NaB has nephroprotective activity resulting from modulation of TLR2/4 to regulate rBD2 expression hence curbing inflammation. PRACTICAL APPLICATIONS: In practice, adding NaB to diet can improve animal performance. Our results suggest that dietary supplementation of NaB increases animal feed intake and improves the body's defense ability to relieve inflammation caused by bacteria. Especially in the age of resistance prohibition, sodium butyrate can partially replace antibiotics to induce the expression of body defensin. It may become a health care product to enhance the body's immunity.
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Affiliation(s)
- Xiujing Dou
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Di Yan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Ziwen Ma
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Nan Gao
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, China
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23
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Quantitative proteomic analysis of the lysine acetylome reveals diverse SIRT2 substrates. Sci Rep 2022; 12:3822. [PMID: 35264593 PMCID: PMC8907344 DOI: 10.1038/s41598-022-06793-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/02/2022] [Indexed: 12/24/2022] Open
Abstract
Sirtuin 2 (SIRT2) is a NAD+-dependent deacetylase, which regulates multiple biological processes, including genome maintenance, aging, tumor suppression, and metabolism. While a number of substrates involved in these processes have been identified, the global landscape of the SIRT2 acetylome remains unclear. Using a label-free quantitative proteomic approach following enrichment for acetylated peptides from SIRT2-depleted and SIRT2-overexpressing HCT116 human colorectal cancer cells, we identified a total of 2,846 unique acetylation sites from 1414 proteins. 896 sites from 610 proteins showed a > 1.5-fold increase in acetylation with SIRT2 knockdown, and 509 sites from 361 proteins showed a > 1.5-fold decrease in acetylation with SIRT2 overexpression, with 184 proteins meeting both criteria. Sequence motif analyses identified several site-specific consensus sequence motifs preferentially recognized by SIRT2, most commonly KxxxxK(ac). Gene Ontology, KEGG, and MetaCore pathway analyses identified SIRT2 substrates involved in diverse pathways, including carbon metabolism, glycolysis, spliceosome, RNA transport, RNA binding, transcription, DNA damage response, the cell cycle, and colorectal cancer. Collectively, our findings expand on the number of known acetylation sites, substrates, and cellular pathways targeted by SIRT2, providing support for SIRT2 in regulating networks of proteins in diverse pathways and opening new avenues of investigation into SIRT2 function.
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Abstract
Diabetes mellitus (DM) is gradually attacking the health and life of people all over the world. Diabetic kidney disease (DKD) is one of the most common chronic microvascular complications of DM, whose mechanism is complex and still lacks research. Sirtuin family is a class III histone deacetylase with highly conserved NAD+ binding domain and catalytic functional domain, while different N-terminal and C-terminal structures enable them to bind different deacetylated substrates to participate in the cellular NAD+ metabolism. The kidney is an organ rich in NAD+ and database exploration of literature shows that the Sirtuin family has different expression localization in renal, cellular, and subcellular structures. With the progress of modern technology, a variety of animal models and reagents for the Sirtuin family and DKD emerged. Machine learning in the literature shows that the Sirtuin family can regulate pathophysiological injury mainly in the glomerular filtration membrane, renal tubular absorption, and immune inflammation through various mechanisms such as epigenetics, multiple signaling pathways, and mitochondrial function. These mechanisms are the key nodes participating in DKD. Thus, it is of great significance for target therapy to study biological functions of the Sirtuin family and DKD regulation mechanism in-depth.
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Affiliation(s)
- Che Bian
- Department of Endocrinology and Metabolism, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Huiwen Ren
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
- *Correspondence: Huiwen Ren,
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25
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Watroba M, Szukiewicz D. Sirtuins at the Service of Healthy Longevity. Front Physiol 2021; 12:724506. [PMID: 34899370 PMCID: PMC8656451 DOI: 10.3389/fphys.2021.724506] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Sirtuins may counteract at least six hallmarks of organismal aging: neurodegeneration, chronic but ineffective inflammatory response, metabolic syndrome, DNA damage, genome instability, and cancer incidence. Moreover, caloric restriction is believed to slow down aging by boosting the activity of some sirtuins through activating adenosine monophosphate-activated protein kinase (AMPK), thus raising the level of intracellular nicotinamide adenine dinucleotide (NAD+) by stimulating NAD+ biosynthesis. Sirtuins and their downstream effectors induce intracellular signaling pathways related to a moderate caloric restriction within cells, mitigating reactive oxygen species (ROS) production, cell senescence phenotype (CSP) induction, and apoptosis as forms of the cellular stress response. Instead, it can promote DNA damage repair and survival of cells with normal, completely functional phenotypes. In this review, we discuss mechanisms of sirtuins action toward cell-conserving phenotype associated with intracellular signaling pathways related to moderate caloric restriction, as well as some tissue-specific functions of sirtuins, especially in the central nervous system, heart muscle, skeletal muscles, liver, kidneys, white adipose tissue, hematopoietic system, and immune system. In this context, we discuss the possibility of new therapeutic approaches.
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Affiliation(s)
- Mateusz Watroba
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
| | - Dariusz Szukiewicz
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
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26
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Zhang Q, Wang L, Wu M, Liu X, Zhu Y, Zhu J, Xing C. Humanized anti‑TLR4 monoclonal antibody ameliorates lipopolysaccharide‑related acute kidney injury by inhibiting TLR4/NF‑κB signaling. Mol Med Rep 2021; 24:608. [PMID: 34184086 PMCID: PMC8240183 DOI: 10.3892/mmr.2021.12245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 05/17/2021] [Indexed: 12/26/2022] Open
Abstract
A humanized anti‑Toll‑like receptor 4 (TLR4) monoclonal antibody (mAb) was previously produced using phage antibody library technology, and it was found that the mAb could effectively ameliorate lipopolysaccharide (LPS)‑induced damage in macrophages. The present study investigated the protective effects exerted by the humanized anti‑TLR4 mAb against LPS‑induced acute kidney injury (AKI), as well as the underlying mechanisms. Female C57BL/6 mice were randomly divided into four groups (n=8 per group): i) Control; ii) LPS; iii) LPS + humanized anti‑TLR4 mAb (1 µg/g); and iv) LPS + humanized anti‑TLR4 mAb (10 µg/g). Serum creatinine, blood urea nitrogen, IL‑6, TNFα and IL‑1β levels were then examined, followed by renal pathology assessment, immunohistochemical staining, reverse transcription‑quantitative PCR and western blotting to assess apoptosis/survival/inflammation‑related molecules and kidney injury molecule (KIM)‑1. The humanized anti‑TLR4 mAb successfully ameliorated LPS‑induced AKI and renal pathological damage. The humanized anti‑TLR4 mAb also dose‑dependently suppressed LPS‑induced elevations in serum IL‑6, TNFα and IL‑1β, and decreased the renal expression levels of myeloid differentiation primary response 88 (MyD88), IKKα/β, IκB, p65 and KIM‑1. Compared with the LPS group, renal Bax and KIM‑1 expression levels were significantly downregulated, and Bcl‑2 expression was notably upregulated by the humanized anti‑TLR4 mAb. Moreover, the humanized anti‑TLR4 mAb also significantly decreased the protein expression levels of MyD88, phosphorylated (p)‑IKKα/β, p‑IκB and p‑p65 in the renal tissues compared with the LPS group. Therefore, the present study indicated that the anti‑inflammatory effects of the humanized anti‑TLR4 mAb against LPS‑related AKI in mice were mediated via inhibition of the TLR4/NF‑κB signaling pathway.
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Affiliation(s)
- Qiuhua Zhang
- Department of Nephrology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Liang Wang
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Mian Wu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Xiaobin Liu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Yushan Zhu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Jin Zhu
- Key Laboratory of Antibody Technique of Ministry of Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
- Huadong Medical Institute of Biotechniques, Nanjing, Jiangsu 210000, P.R. China
| | - Changying Xing
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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27
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Ren H, Hu F, Wang D, Kang X, Feng X, Zhang L, Zhou B, Liu S, Yuan G. Sirtuin 2 Prevents Liver Steatosis and Metabolic Disorders by Deacetylation of Hepatocyte Nuclear Factor 4α. Hepatology 2021; 74:723-740. [PMID: 33636024 PMCID: PMC8453713 DOI: 10.1002/hep.31773] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Sirtuin 2 (SIRT2), an NAD+ -dependent deacetylase, is involved in various cellular processes regulating metabolic homeostasis and inflammatory responses; however, its role in hepatic steatosis and related metabolic disorders is unknown. APPROACH AND RESULTS Integrating the published genomic data on NAFLD samples from humans and rodents available in the Gene Expression Omnibus, we found that SIRT2 was significantly down-regulated in livers from patients with advanced NAFLD and high-fat diet (HFD)-induced NAFLD mice. This study further revealed that SIRT2 was markedly decreased in obese (ob/ob) mice and in palmitate-treated HepG2 cells. Restoration of hepatic SIRT2 expression in ob/ob or HFD-fed mice largely alleviated insulin resistance, hepatic steatosis, and systematic inflammation, whereas SIRT2 liver-specific ablation exacerbated these metabolic dysfunctions in HFD-fed C57BL/6J mice. Mechanistically, SIRT2 stabilized the hepatocyte nuclear factor 4α (HNF4α) protein by binding to and deacetylating HNF4α on lysine 458. Furthermore, HNF4α was sufficient to mediate SIRT2 function, and SIRT2-HNF4α interaction was required for SIRT2 function both in vivo and in vitro. CONCLUSIONS Collectively, the present study provided evidence that SIRT2 functions as a crucial negative regulator in NAFLD and related metabolic disorders and that targeting the SIRT2-HNF4α pathway may be a promising strategy for NAFLD treatment.
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Affiliation(s)
- Huihui Ren
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China.,Branch of National Clinical Research Center for Metabolic DiseaseHubeiP.R. China
| | - Fuqing Hu
- Gastrointestinal SurgeryTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Dan Wang
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Xiaonan Kang
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Xiaohui Feng
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Lu Zhang
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Bowen Zhou
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Siyue Liu
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China
| | - Gang Yuan
- Department of EndocrinologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP.R. China.,Branch of National Clinical Research Center for Metabolic DiseaseHubeiP.R. China
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28
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Sirtuins and Renal Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10081198. [PMID: 34439446 PMCID: PMC8388938 DOI: 10.3390/antiox10081198] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/04/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023] Open
Abstract
Renal failure is a major health problem that is increasing worldwide. To improve clinical outcomes, we need to understand the basic mechanisms of kidney disease. Aging is a risk factor for the development and progression of kidney disease. Cells develop an imbalance of oxidants and antioxidants as they age, resulting in oxidative stress and the development of kidney damage. Calorie restriction (CR) is recognized as a dietary approach that promotes longevity, reduces oxidative stress, and delays the onset of age-related diseases. Sirtuins, a type of nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylase, are considered to be anti-aging molecules, and CR induces their expression. The sirtuin family consists of seven enzymes (Sirt1–7) that are involved in processes and functions related to antioxidant and oxidative stress, such as DNA damage repair and metabolism through histone and protein deacetylation. In fact, a role for sirtuins in the regulation of antioxidants and redox substances has been suggested. Therefore, the activation of sirtuins in the kidney may represent a novel therapeutic strategy to enhancing resistance to many causative factors in kidney disease through the reduction of oxidative stress. In this review, we discuss the relationship between sirtuins and oxidative stress in renal disease.
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29
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Wang M, Lin H. Understanding the Function of Mammalian Sirtuins and Protein Lysine Acylation. Annu Rev Biochem 2021; 90:245-285. [PMID: 33848425 DOI: 10.1146/annurev-biochem-082520-125411] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Protein lysine acetylation is an important posttranslational modification that regulates numerous biological processes. Targeting lysine acetylation regulatory factors, such as acetyltransferases, deacetylases, and acetyl-lysine recognition domains, has been shown to have potential for treating human diseases, including cancer and neurological diseases. Over the past decade, many other acyl-lysine modifications, such as succinylation, crotonylation, and long-chain fatty acylation, have also been investigated and shown to have interesting biological functions. Here, we provide an overview of the functions of different acyl-lysine modifications in mammals. We focus on lysine acetylation as it is well characterized, and principles learned from acetylation are useful for understanding the functions of other lysine acylations. We pay special attention to the sirtuins, given that the study of sirtuins has provided a great deal of information about the functions of lysine acylation. We emphasize the regulation of sirtuins to illustrate that their regulation enables cells to respond to various signals and stresses.
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Affiliation(s)
- Miao Wang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA;
| | - Hening Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA; .,Howard Hughes Medical Institute, Cornell University, Ithaca, New York 14853, USA
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30
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Zhou F, Zhang L, Zhu K, Bai M, Zhang Y, Zhu Q, Wang S, Sheng C, Yuan M, Liu Y, Lu J, Shao L, Wang X, Zhou L. SIRT2 ablation inhibits glucose-stimulated insulin secretion through decreasing glycolytic flux. Am J Cancer Res 2021; 11:4825-4838. [PMID: 33754030 PMCID: PMC7978320 DOI: 10.7150/thno.55330] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/06/2021] [Indexed: 11/30/2022] Open
Abstract
Rationale: Sirtuins are NAD+-dependent protein deacylases known to have protective effects against age-related diseases such as diabetes, cancer, and neurodegenerative disease. SIRT2 is the only primarily cytoplasmic isoform and its overall role in glucose homeostasis remains uncertain. Methods: SIRT2-knockout (KO) rats were constructed to evaluate the role of SIRT2 in glucose homeostasis. The effect of SIRT2 on β-cell function was detected by investigating the morphology, insulin secretion, and metabolomic state of islets. The deacetylation and stabilization of GKRP in β-cells by SIRT2 were determined by western blot, adenoviral infection, and immunoprecipitation. Results: SIRT2-KO rats exhibited impaired glucose tolerance and glucose-stimulated insulin secretion (GSIS), without change in insulin sensitivity. SIRT2 deficiency or inhibition by AGK2 decreased GSIS in isolated rat islets, with lowered oxygen consumption rate. Adenovirus-mediated overexpression of SIRT2 enhanced insulin secretion from rat islets. Metabolomics analysis revealed a decrease in metabolites of glycolysis and tricarboxylic acid cycle in SIRT2-KO islets compared with control islets. Our study further demonstrated that glucokinase regulatory protein (GKRP), an endogenous inhibitor of glucokinase (GCK), was expressed in rat islets. SIRT2 overexpression deacetylated GKRP in INS-1 β-cells. SIRT2 knockout or inhibition elevated GKRP protein stability in islet β-cells, leading to an increase in the interaction of GKRP and GCK. On the contrary, SIRT2 inhibition promoted the protein degradation of ALDOA, a glycolytic enzyme. Conclusions: SIRT2 ablation inhibits GSIS through blocking GKRP protein degradation and promoting ALDOA protein degradation, resulting in a decrease in glycolytic flux.
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31
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Alipour M, Ashrafihelan J, Salehi R, Aghazadeh Z, Rezabakhsh A, Hassanzadeh A, Firouzamandi M, Heidarzadeh M, Rahbarghazi R, Aghazadeh M, Saghati S. In vivo evaluation of biocompatibility and immune modulation potential of poly(caprolactone)-poly(ethylene glycol)-poly(caprolactone)-gelatin hydrogels enriched with nano-hydroxyapatite in the model of mouse. J Biomater Appl 2021; 35:1253-1263. [PMID: 33632003 DOI: 10.1177/0885328221998525] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Biocompatible, biodegradable, and injectable hydrogels are a novel and promising approach for bone regeneration. In this study, poly(caprolactone)-poly(ethylene glycol)-poly(caprolactone) (PCL-PEG-PCL), PCL-PEG-PCL-gelatin (Gel), PCL-PEG-PCL-Gel/nano-hydroxyapatite (nHA) injectable hydrogels were synthesized and evaluated in a mouse model of subcutaneous transplantation after 14 days. PCL-PEG-PCL-Gel and PCL-PEG-PCL-Gel/nHA hydrogels were fabricated with in situ precipitation method. Structure, intermolecular interaction, and the reaction between the PCL-PEG-PCL, Gel, and nHA were evaluated using a scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance (H-NMR), and carbon nuclear magnetic resonance (C-NMR). Fourteen days after subcutaneous injection, the existence of an immune system reaction was investigated using Hematoxylin and Eosin (H&E) staining. Using immunofluorescence imaging, the number of CD68+ cells was determined in the periphery of the hydrogel. The CD8/CD4 lymphocyte ratio was also calculated in blood samples. We monitored the expression of CCL-2, BCL-2, IL-10, and CD31 using real-time PCR assay. The chemical evaluation revealed the successful integration of Gel and nHA to the PCL-PEG-PCL backbone. Histological examination showed the lack of inflammation at the site of injection. No toxicological effects were determined in hepatic and renal tissues. The addition of nHA to the PCL-PEG-PCL-Gel decreased biodegradation time. None of the hydrogels caused statistically significant differences in the number of CD68 cells (p > 0.05). The CD8/CD4 lymphocyte ratio remained unchanged in all groups (p > 0.05). Compared to the PCL-PEG-PCL group, the addition of nHA and Gel increased the expression of CCL-2, BCL-2, IL-10, and CD31 (p < 0.05). In conclusion, the current study showed that PCL-PEG-PCL-Gel/nHA hydrogels could be used in in vivo conditions without prominent toxic effects and inflammatory responses.
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Affiliation(s)
- Mahdieh Alipour
- Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Ashrafihelan
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Roya Salehi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zahra Aghazadeh
- Stem Cell Research Center and Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aysa Rezabakhsh
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Armin Hassanzadeh
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | | | - Morteza Heidarzadeh
- Stem Cell Research Center and Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center and Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marziyeh Aghazadeh
- Stem Cell Research Center and Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Saghati
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Zheng M, Du X, Zhao L, Sun H, Chen M, Yang X. Elevated plasma Sirtuin2 level predicts heart failure after acute myocardial infarction. J Thorac Dis 2021; 13:50-59. [PMID: 33569184 PMCID: PMC7867809 DOI: 10.21037/jtd-20-2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background There is currently no evidence regarding the role of plasma Sirtuin2 (SIRT2) level in acute myocardial infarction (AMI) yet. This study assessed the role of plasma SIRT2 in AMI, and investigated the association of plasma SIRT2 level with major adverse cardiovascular events (MACE) and heart failure after AMI. Methods This is a prospective observational study. A total of 129 AMI patients (mean age: 62.2±12.7 years old, male/female: 96/33) were included. Cox proportional hazards regression models were used to estimate the association of different SIRT2 levels with MACE and heart failure after AMI. Results According to the 75th percentile value of plasma SIRT2 level, we divided all the AMI patients into two groups: high-level group (plasma SIRT2 level ≥109.0 pg/mL) and low-level group (plasma SIRT2 level <109.0 pg/mL). Compared with the low-level group, the high-level group had higher percentage of Killip class ≥3 (P<0.001), left ventricular ejection fraction (LVEF) <50% (P=0.007) or even <40% (P=0.012), use of breathing machine(P=0.003), and higher plasma brain natriuretic peptide (BNP) level (P=0.006). Multivariate Cox regression analysis showed that there were higher risks of MACE [hazard ratio (HR) 11.20, 95% confidence interval (CI): 3.18–39.52, P<0.001)] and heart failure (HR 27.10, 95% CI: 4.65–157.83, P<0.001) in the high-level group. Conclusions The present study suggested that plasma SIRT2 level is a promising biomarker to predict heart failure and MACE after AMI.
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Affiliation(s)
- Meili Zheng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypertension Research, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xiangpeng Du
- Department of Cardiology, Weihaiwei People's Hospital, Weihai, China
| | - Lei Zhao
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypertension Research, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hao Sun
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Mulei Chen
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xinchun Yang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypertension Research, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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33
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Sirtuins play critical and diverse roles in acute kidney injury. Pediatr Nephrol 2021; 36:3539-3546. [PMID: 33411071 PMCID: PMC7788193 DOI: 10.1007/s00467-020-04866-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/08/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023]
Abstract
Acute kidney injury (AKI) is an extremely common medical affliction affecting both adult and pediatric patients resulting from hypoxic, nephrotoxic, and septic insults affecting approximately 20% of all hospital patients and up to 50% of patients in the intensive care unit. There are currently no therapeutics for patients who suffer AKI. Much recent work has focused on designing and implementing therapeutics for AKI. This review focuses on a family of enzymes known as sirtuins that play critical roles in regulating many cellular and biological functions. There are 7 mammalian sirtuins (SIRT1-7) that play roles in regulating the acylation of a wide variety of pathways. Furthermore, all but one of the mammalian sirtuins have been shown to play critical roles in mediating AKI based on preclinical studies. These diverse enzymes show exciting potential for therapeutic manipulation. This review will focus on the specific roles of each of the investigated sirtuins and the potential for manipulation of the various sirtuins and their effector pathways in mediating kidney injury.
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34
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Ahmadian M, Khoshfetrat AB, Khatami N, Morshedloo F, Rahbarghazi R, Hassani A, Kiani S. Influence of gelatin and collagen incorporation on peroxidase-mediated injectable pectin-based hydrogel and bioactivity of fibroblasts. J Biomater Appl 2020; 36:179-190. [PMID: 33302758 DOI: 10.1177/0885328220977601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pectin has recently attracted increasing attention for biomedical and pharmaceutical applications. Due to the lack of adhesion molecules in polysaccharides, phenolic hydroxyl conjugated gelatin was added to enzymatically-gellable peroxidase-modified pectin derivative and compared with phenolic hydroxyl -pectin/collagen. Both pectin and gelatin were modified by tyramine hydrochloride in the presence of EDC/NHS. The phenolic hydroxyl -pectin/phenolic hydroxyl -gelatin, phenolic hydroxyl-pectin/collagen, and phenolic hydroxyl -pectin hydrogels were prepared using horseradish peroxidase and hydrogen peroxide. The hydrogels were characterized by gelation time analysis. Morphology, enzymatic biodegradation, mechanical and swelling properties as well as water vapor transmission rate were also evaluated. Fibroblasts were cultured for 7 days, and the survival rate was evaluated using conventional MTT assay. Hydrogels composed of Ph-pectin/Ph-gelatin showed decreased biodegradation rate, and WVTR and further improved mechanical performance in comparison with other groups. Both phenolic hydroxyl -pectin/collagen and phenolic hydroxyl -pectin/phenolic hydroxyl -gelatin hydrogels exhibited porous structures. The hydrogels composed of collagen promoted cell survival rate 1.4 and 3.5 times compared to phenolic hydroxyl -gelatin and phenolic hydroxyl -pectin based hydrogels at the end of 7 days, respectively (p < 0.001). The study demonstrated the potential of enzymatically-gellable pectin-based hydrogels as cost-effective frameworks for use in tissue engineering applications.
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Affiliation(s)
- Mehri Ahmadian
- Sahand University of Technology, Tabriz, Islamic Republic of Iran
| | | | - Neda Khatami
- Sahand University of Technology, Tabriz, Islamic Republic of Iran
| | | | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran *These authors contributed equally to this work
| | - Ayla Hassani
- Sahand University of Technology, Tabriz, Islamic Republic of Iran
| | - Sahar Kiani
- Sahand University of Technology, Tabriz, Islamic Republic of Iran
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35
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Jung YJ, Park W, Kang KP, Kim W. SIRT2 is involved in cisplatin-induced acute kidney injury through regulation of mitogen-activated protein kinase phosphatase-1. Nephrol Dial Transplant 2020; 35:1145-1156. [PMID: 32240312 DOI: 10.1093/ndt/gfaa042] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 02/04/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Activation of mitogen-activated protein kinase phosphatase-1 (MKP-1), a dual-specificity protein phosphatase, regulates mitogen-activated protein kinase signaling. C-Jun N-terminal kinase (JNK) and p38 are activated in cisplatin-induced renal injury. However, the change of MKP-1 expression in cisplatin-induced renal injury and the regulatory effect of sirtuin 2 (SIRT2), a nicotinamide adenine dinucleotide-dependent deacetylase, on MKP-1 remains unknown. METHODS To address these issues, we used constitutional Sirt2 knockout (KO) mice, transgenic (TG) mice with increased expression of SIRT2 specifically in proximal tubular epithelial cellsand wild-type (WT) mice. Cisplatin nephrotoxicity was induced by intraperitoneal injection of cisplatin. RESULTS MKP-1 expression in the kidney was decreased after cisplatin treatment. Cisplatin-induced downregulation of MKP-1 was reversed in Sirt2 KO mice kidney and further decreased in Sirt2 TG mice kidney. We observed similar phenomenon with SIRT2-knockdown or SIRT2-overexpressed tubular epithelial cells. Phosphorylation of p38 and JNK, a downstream signal pathway of MKP-1, increased in WT mice kidney following treatment with cisplatin. A decrease in SIRT2 suppressed cisplatin-induced phosphorylation of p38 and JNK in kidney and tubular epithelial cells. Overexpression of SIRT2 further increased phosphorylation of p38 and JNK in kidney and tubular epithelial cells. Acetylation of MKP-1 was significantly increased in SIRT2-knockdown cells and decreased in SIRT2-overexpressed cells after cisplatin stimulation. Sirt2 KO mice and Sirt2 TG mice showed amelioration and aggravation of renal injury, apoptosis, necroptosis and inflammation induced by cisplatin. CONCLUSION Our data show that SIRT2 is associated with cisplatin-induced renal injury through regulation of MKP-1 expression.
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Affiliation(s)
- Yu Jin Jung
- Department of Internal Medicine, Division of Nephrology, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Woong Park
- Department of Internal Medicine, Division of Nephrology, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Kyung Pyo Kang
- Department of Internal Medicine, Division of Nephrology, Chonbuk National University Medical School, Jeonju, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Won Kim
- Department of Internal Medicine, Division of Nephrology, Chonbuk National University Medical School, Jeonju, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
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Urinary phosphate-containing nanoparticle contributes to inflammation and kidney injury in a salt-sensitive hypertension rat model. Commun Biol 2020; 3:575. [PMID: 33060834 PMCID: PMC7562875 DOI: 10.1038/s42003-020-01298-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 09/15/2020] [Indexed: 12/12/2022] Open
Abstract
Although disturbed phosphate metabolism frequently accompanies chronic kidney disease (CKD), its causal role in CKD progression remains unclear. It is also not fully understood how excess salt induces organ damage. We here show that urinary phosphate-containing nanoparticles promote kidney injury in salt-sensitive hypertension. In Dahl salt-sensitive rats, salt loading resulted in a significant increase in urinary phosphate excretion without altering serum phosphate levels. An intestinal phosphate binder sucroferric oxyhydroxide attenuated renal inflammation and proteinuria in this model, along with the suppression of phosphaturia. Using cultured proximal tubule cells, we confirmed direct pathogenic roles of phosphate-containing nanoparticles in renal tubules. Finally, transcriptome analysis revealed a potential role of complement C1q in renal inflammation associated with altered phosphate metabolism. These data demonstrate that increased phosphate excretion promotes renal inflammation in salt-sensitive hypertension and suggest a role of disturbed phosphate metabolism in the pathophysiology of hypertensive kidney disease and high salt-induced kidney injury.
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Hong YA, Kim JE, Jo M, Ko GJ. The Role of Sirtuins in Kidney Diseases. Int J Mol Sci 2020; 21:ijms21186686. [PMID: 32932720 PMCID: PMC7555196 DOI: 10.3390/ijms21186686] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 09/07/2020] [Indexed: 12/11/2022] Open
Abstract
Sirtuins (SIRTs) are class III histone deacetylases (HDACs) that play important roles in aging and a wide range of cellular functions. Sirtuins are crucial to numerous biological processes, including proliferation, DNA repair, mitochondrial energy homeostasis, and antioxidant activity. Mammals have seven different sirtuins, SIRT1–7, and the diverse biological functions of each sirtuin are due to differences in subcellular localization, expression profiles, and cellular substrates. In this review, we summarize research advances into the role of sirtuins in the pathogenesis of various kidney diseases including acute kidney injury, diabetic kidney disease, renal fibrosis, and kidney aging along with the possible underlying molecular mechanisms. The available evidence indicates that sirtuins have great potential as novel therapeutic targets for the prevention and treatment of kidney diseases.
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Affiliation(s)
- Yu Ah Hong
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Daejeon St. Mary Mary’s Hospital, Daejeon 34943, Korea;
| | - Ji Eun Kim
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Korea; (J.E.K.); (M.J.)
| | - Minjee Jo
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Korea; (J.E.K.); (M.J.)
| | - Gang-Jee Ko
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Korea; (J.E.K.); (M.J.)
- Correspondence: ; Tel.: +82-2-2626-3039
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Micheliolide Attenuates Lipopolysaccharide-Induced Inflammation by Modulating the mROS/NF- κB/NLRP3 Axis in Renal Tubular Epithelial Cells. Mediators Inflamm 2020; 2020:3934769. [PMID: 32879619 PMCID: PMC7448212 DOI: 10.1155/2020/3934769] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic kidney disease is a common disease closely related to renal tubular inflammation and oxidative stress, and no effective treatment is available. Activation of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome is an important factor in renal inflammation, but the mechanism remains unclear. Micheliolide (MCL), which is derived from parthenolide, is a new compound with antioxidative and anti-inflammatory effects and has multiple roles in tumors and inflammatory diseases. In this study, we investigated the effect of MCL on lipopolysaccharide- (LPS-) induced inflammation in renal tubular cells and the related mechanism. We found that MCL significantly suppressed the LPS-induced NF-κB signaling and inflammatory expression of cytokines, such as tumor necrosis factor-α and monocyte chemoattractant protein-1 in a rat renal proximal tubular cell line (NRK-52E). MCL also prevented LPS- and adenosine triphosphate-induced NLRP3 inflammasome activation in vitro, as evidenced by the inhibition of NLRP3 expression, caspase-1 cleavage, and interleukin-1β and interleukin-18 maturation and secretion. Additionally, MCL inhibited the reduction of mitochondrial membrane potential and decreases the release of reactive oxygen species (ROS). Moreover, MCL can prevent NLRP3 inflammasome activation induced by rotenone, a well-known mitochondrial ROS (mROS) agonist, indicating that the mechanism of MCL's anti-inflammatory effect may be closely related to the mROS. In conclusion, our study indicates that MCL can inhibit LPS-induced renal inflammation through suppressing the mROS/NF-κB/NLRP3 axis in tubular epithelial cells.
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Gui Y, Hou Q, Lu Q, Dai C, Li J. Loss of Rictor in tubular cells exaggerates lipopolysaccharide induced renal inflammation and acute kidney injury via Yap/Taz-NF-κB axis. Cell Death Discov 2020; 6:40. [PMID: 32528729 PMCID: PMC7260239 DOI: 10.1038/s41420-020-0274-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 12/12/2022] Open
Abstract
Our previous study demonstrated that the mammalian target of rapamycin complex 2 (mTORC2) signaling alleviates renal inflammation and protects against cisplatin-induced AKI. However, the underlying mechanisms for mTORC2 in regulating renal inflammation in AKI remain to be determined. In this study, we found that lipopolysaccharide (LPS) could activate mTORC2 signaling in NRK-52E cells, and blockage of mTORC2 signaling led to Yap/Taz degradation, which in turn activated NF-κB signaling and induced inflammatory cytokines secretion. Overexpression of constitutively active Taz (Taz-S89A) could attenuate the inflammation-amplified role of mTORC2 blockage. In mouse models, tubule-specific deletion of Rictor had higher blood urea nitrogen level, severe morphological injury as well as more inflammatory cells accumulation compared with those in their littermate controls. Overall, these results demonstrate that mTORC2 signaling protects against renal inflammation and dictates the outcome of AKI by modulating Yap/Taz degradation.
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Affiliation(s)
- Yuan Gui
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu 210003 China
- Division of Nephrology, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242 USA
| | - Qing Hou
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu 210003 China
| | - Qingmiao Lu
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu 210003 China
| | - Chunsun Dai
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu 210003 China
| | - Jianzhong Li
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006 China
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SIRT1 induces the adipogenic differentiation of mouse embryonic stem cells by regulating RA-induced RAR expression via NCOR1 acetylation. Stem Cell Res 2020; 44:101771. [DOI: 10.1016/j.scr.2020.101771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 03/11/2020] [Indexed: 01/12/2023] Open
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41
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Jiao F, Wang Y, Zhang W, Zhang H, Chen Q, Wang L, Shi C, Gong Z. AGK2 Alleviates Lipopolysaccharide Induced Neuroinflammation through Regulation of Mitogen-Activated Protein Kinase Phosphatase-1. J Neuroimmune Pharmacol 2019; 15:196-208. [PMID: 31786712 DOI: 10.1007/s11481-019-09890-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 10/21/2019] [Indexed: 01/31/2023]
Abstract
Neuroinflammation is associated with the progression of multiple neurological diseases. Many studies show that SIRT2 involves in multiple inflammatory processes. While, the mechanisms remain unclear. The purpose of this study was to explore the effect of SIRT2 inhibitor AGK2 on inflammatory responses and MAPK signaling pathways in LPS activated microglia in vitro and in vivo. The effect of AGK2 on cell viability of BV2 microglial cells was detected by CCK-8 assay. The expression of inflammatory cytokine iNOS was analyzed by western blotting and immunofluorescence. The mRNA expressions of iNOS, TNF-α, and IL-1β were detected by real-time polymerase chain reaction (RT-PCR). The SIRT2, phospho-P38, P38, phospho-JNK, JNK, phospho-ERK, ERK, α-tubulin, and acetyl-α-tubulin were analyzed by western blotting respectively. The interaction between SIRT2 and MKP-1 was measured by Co-immunoprecipitation (Co-IP) assay. Double immunofluorescent staining was performed to detect the expressions of CD11b and iNOS or SIRT2 in brain tissues. We found that AGK2 could suppress LPS-induced inflammatory cytokines (iNOS, TNF-α, and IL-1β) expression levels in BV2 microglial cells. Moreover, it could effectively reduce the expression of SIRT2 and increase the acetylation of α-tubulin in LPS activated BV2 microglial cells and LPS induced mice neuroinflammation. In addition, our results showed that AGK2 could reduce the increase of phosphorylation p38, JNK, and ERK after LPS challenge. Co-IP results showed that there was no direct interaction between MKP-1 and SIRT2. However, AGK2 by inhibition of SIRT2 could increase the expression of MKP-1. Furthermore, AGK2 could inhibit the activation of BV2 microglia and expression of iNOS and SIRT2 in LPS treated mice brain tissue. Taken together, our results suggested that AGK2 might alleviate lipopolysaccharide induced neuroinflammation through regulation of mitogen-activated protein kinase phosphatase-1. Graphical abstract.
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Affiliation(s)
- Fangzhou Jiao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Yao Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Wenbin Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Haiyue Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Qian Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Luwen Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Chunxia Shi
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Zuojiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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42
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Heinonen T, Ciarlo E, Rigoni E, Regina J, Le Roy D, Roger T. Dual Deletion of the Sirtuins SIRT2 and SIRT3 Impacts on Metabolism and Inflammatory Responses of Macrophages and Protects From Endotoxemia. Front Immunol 2019; 10:2713. [PMID: 31849939 PMCID: PMC6901967 DOI: 10.3389/fimmu.2019.02713] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/05/2019] [Indexed: 12/25/2022] Open
Abstract
Sirtuin 2 (SIRT2) and SIRT3 are cytoplasmic and mitochondrial NAD-dependent deacetylases. SIRT2 and SIRT3 target proteins involved in metabolic, proliferation and inflammation pathways and have been implicated in the pathogenesis of neurodegenerative, metabolic and oncologic disorders. Both pro- and anti-inflammatory effects have been attributed to SIRT2 and SIRT3, and single deficiency in SIRT2 or SIRT3 had minor or no impact on antimicrobial innate immune responses. Here, we generated a SIRT2/3 double deficient mouse line to study the interactions between SIRT2 and SIRT3. SIRT2/3−/− mice developed normally and showed subtle alterations of immune cell populations in the bone marrow, thymus, spleen, blood and peritoneal cavity that contained notably more anti-inflammatory B-1a cells and less NK cells. In vitro, SIRT2/3−/− macrophages favored fatty acid oxidation (FAO) over glycolysis and produced increased levels of both proinflammatory and anti-inflammatory cytokines. In line with metabolic adaptation and increased numbers of peritoneal B-1a cells, SIRT2/3−/− mice were robustly protected from endotoxemia. Yet, SIRT2/3 double deficiency did not modify endotoxin tolerance. Overall, these data suggest that sirtuins can act in concert or compensate each other for certain immune functions, a parameter to be considered for drug development. Moreover, inhibitors targeting multiple sirtuins developed for clinical purposes may be useful to treat inflammatory diseases.
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Affiliation(s)
- Tytti Heinonen
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Eleonora Ciarlo
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Ersilia Rigoni
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jean Regina
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Didier Le Roy
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Thierry Roger
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Sirtuin 2 Inhibition Attenuates Sevoflurane-Induced Learning and Memory Deficits in Developing Rats via Modulating Microglial Activation. Cell Mol Neurobiol 2019; 40:437-446. [PMID: 31713761 DOI: 10.1007/s10571-019-00746-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/15/2019] [Indexed: 12/27/2022]
Abstract
Sevoflurane is a widely used inhalational anesthetic in pediatric medicine that has been reported to have deleterious effects on the developing brain. Strategies to mitigate these detrimental effects are lacking. Sirtuin 2 (SIRT2) is a member of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases involved in a wide range of pathophysiological processes. SIRT2 inhibition has emerged as a promising treatment for an array of neurological disorders. However, the direct effects of SIRT2 on anesthesia-induced damage to the immature brain are unclear. Neonatal rats were exposed to 3% sevoflurane or 30% oxygen for 2 h daily with or without SIRT2 inhibitor AK7 pretreatment from postnatal day 7 (P7) to P9. One cohort of rats were euthanized 6, 12, and/or 24 h after the last gas exposure, and brain tissues were harvested for biochemical analysis and/or immunohistochemical examination. Cognitive functions were evaluated using the open field and Morris water maze tests on P25 and P28-32, respectively. SIRT2 was significantly up-regulated in neonatal rat hippocampus at 6 and 12 h post-anesthesia. Pretreatment with SIRT2 inhibitor AK7 reversed sevoflurane-induced hippocampus-dependent cognitive impairments. Furthermore, AK7 administration mitigated sevoflurane-induced neuroinflammation and microglial activation. Concomitantly, AK7 inhibited pro-inflammatory/M1-related markers and increased anti-inflammatory/M2-related markers in microglia. AK7 might prevent sevoflurane-induced neuroinflammation by switching microglia from the M1 to M2 phenotype. Downregulation of SIRT2 may be a novel therapeutic target for alleviating anesthesia-induced developmental neurotoxicity.
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Wang Y, Yang J, Hong T, Chen X, Cui L. SIRT2: Controversy and multiple roles in disease and physiology. Ageing Res Rev 2019; 55:100961. [PMID: 31505260 DOI: 10.1016/j.arr.2019.100961] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/11/2019] [Accepted: 09/04/2019] [Indexed: 12/21/2022]
Abstract
Sirtuin 2 (SIRT2) is an NAD+-dependent deacetylase that was under studied compared to other sirtuin family members. SIRT2 is the only sirtuin protein which is predominantly found in the cytoplasm but is also found in the mitochondria and in the nucleus. Recently, accumulating evidence has uncovered a growing number of substrates and additional detailed functions of SIRT2 in a wide range of biological processes, marking its crucial role. Here, we give a comprehensive profile of the crucial physiological functions of SIRT2 and its role in neurological diseases, cancers, and other diseases. This review summarizes the functions of SIRT2 in the nervous system, mitosis regulation, genome integrity, cell differentiation, cell homeostasis, aging, infection, inflammation, oxidative stress, and autophagy. SIRT2 inhibition rescues neurodegenerative disease symptoms and hence SIRT2 is a potential therapeutic target for neurodegenerative disease. SIRT2 is undoubtedly dysfunctional in cancers and plays a dual-faced role in different types of cancers, and although its mechanism is unresolved, SIRT2 remains a promising therapeutic target for certain cancers. In future, the continued rapid growth in SIRT2 research will help clarify its role in human health and disease, and promote the progress of this target in clinical practice.
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Affiliation(s)
- Yan Wang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China; Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Jingqi Yang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tingting Hong
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiongjin Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Lili Cui
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
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Jia P, Wu X, Pan T, Xu S, Hu J, Ding X. Uncoupling protein 1 inhibits mitochondrial reactive oxygen species generation and alleviates acute kidney injury. EBioMedicine 2019; 49:331-340. [PMID: 31678001 PMCID: PMC6945195 DOI: 10.1016/j.ebiom.2019.10.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/05/2019] [Accepted: 10/14/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Uncoupling protein 1 (UCP1) is predominantly found in brown adipose tissue mitochondria, and mediates energy dissipation to generate heat rather than ATP via functional mitochondrial uncoupling. However, little is known about its expression and function in kidney. METHODS We carried out a mRNA microarray analysis in mice kidneys with ischemia reperfusion (IR) injury. The most dramatically downregulated gene UCP1 after IR was identified, and its role in generation of mitochondrial reactive oxygen species (ROS) and oxidative stress injury was assessed both in vitro and in vivo. Genetic deletion of UCP1 was used to investigate the effects of UCP1 on ischemia or cisplatin-indued acute kidney injury (AKI) in mice. FINDINGS UCP1 was located in renal tubular epithelial cells in kidney and downregulated in a time-dependent manner during renal IR. Deletion of UCP1 increased oxidative stress in kidneys and aggravated ischemia or cisplatin induced AKI in mice.Viral-based overexpression of UCP1 reduced mitochondrial ROS generation and apoptosis in hypoxia-treated tubular epithelial cells. Furthermore, UCP1 expression was regulated by peroxisome proliferator-activator receptor (PPAR) γ in kidneys during renal IR. Overexpression of PPAR-γ resembled UCP1-overexpression phenotype in vitro. Treatment with PPAR-γ agonist could induce UCP1 upregulation and provide protective effect against renal IR injury in UCP1+/+mice, but not in UCP1-/-mice. INTERPRETATION UCP1 protects against AKI likely by suppressing oxidative stress, and activation of UCP1 represents a potential therapeutic strategy for AKI. FUND: National Natural Science Foundation of China grants, Science and Technology Commission of Shanghai.
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Affiliation(s)
- Ping Jia
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China
| | - Xiaoli Wu
- Traditional Chinese Medicine Pharmacology Laboratory, Longhua Hospital, Shanghai University of Tranditional Chinese Medicine, Shanghai, China
| | - Tianyi Pan
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Sujuan Xu
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiachang Hu
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoqiang Ding
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Kidney and Dialysis Institute of Shanghai, Shanghai, China; Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China; Hemodialysis quality control center of Shanghai, Shanghai, China.
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46
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Protective role of AGK2 on thioacetamide-induced acute liver failure in mice. Life Sci 2019; 230:68-75. [DOI: 10.1016/j.lfs.2019.05.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022]
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Chen M, Xu M, Zhu C, Wang H, Zhao Q, Zhou F. Sirtuin2 enhances the tumoricidal function of liver natural killer cells in a mouse hepatocellular carcinoma model. Cancer Immunol Immunother 2019; 68:961-971. [PMID: 30955067 PMCID: PMC11028107 DOI: 10.1007/s00262-019-02337-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 04/01/2019] [Indexed: 12/21/2022]
Abstract
Hepatocellular carcinoma (HCC) is the third most lethal cancer in the world. Natural killer (NK) cell-mediated immunity is crucial for tumor surveillance and therapy. Characterization of the regulatory mechanisms of NK cell function is important for developing novel immunotherapies against HCC. In this study, we used a chemical-induced mouse HCC model to identify the upregulation of Sirtuin2 (SIRT2) in liver NK cells. In particular, SIRT2 was predominantly expressed in liver CD94+ NK cells. The HCC liver microenvironment induced SIRT2 expression in NK cells. In addition, overexpression of exogenous SIRT2 significantly upregulated the production of cytokines and cytotoxic mediators in activated NK cells. Consistently, SIRT2-overexpressing NK cells showed a stronger tumoricidal effect on hepatoma cells. Moreover, SIRT2 remarkably promoted the phosphorylation of Extracellular-signal-regulated kinase 1/2 (Erk1/2) and p38 Mitogen-activated protein kinases (MAPK) in activated NK cells. SIRT2 knockdown in liver CD94+ NK cells impaired their cytotoxic effect on hepatoma cells. Our study indicates that SIRT2 enhances the tumoricidal activity of liver NK cells in HCC.
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MESH Headings
- Animals
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/therapy
- Cytokines/immunology
- Cytokines/metabolism
- Cytotoxicity, Immunologic/genetics
- Cytotoxicity, Immunologic/immunology
- Disease Models, Animal
- Gene Expression Regulation, Neoplastic/immunology
- Humans
- Immunotherapy, Adoptive
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/transplantation
- Liver/immunology
- Liver/metabolism
- Liver Neoplasms, Experimental/genetics
- Liver Neoplasms, Experimental/immunology
- Liver Neoplasms, Experimental/therapy
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- RNA Interference
- Sirtuin 2/genetics
- Sirtuin 2/immunology
- Sirtuin 2/metabolism
- p38 Mitogen-Activated Protein Kinases/immunology
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Ming Chen
- Department of Blood Transfusion, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Min Xu
- Department of Hematology and Oncology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengliang Zhu
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongling Wang
- Hubei Clinical Center and Key Laboratory for Intestinal and Colorectal Disease, Department of Gastroenterology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuchang District, Wuhan City, Hubei Province, China
| | - Qiu Zhao
- Hubei Clinical Center and Key Laboratory for Intestinal and Colorectal Disease, Department of Gastroenterology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuchang District, Wuhan City, Hubei Province, China
| | - Feng Zhou
- Hubei Clinical Center and Key Laboratory for Intestinal and Colorectal Disease, Department of Gastroenterology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuchang District, Wuhan City, Hubei Province, China.
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Rat mRNA expression profiles associated with inhibition of ischemic acute kidney injury by losartan. Biosci Rep 2019; 39:BSR20181774. [PMID: 30877184 PMCID: PMC6454018 DOI: 10.1042/bsr20181774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 03/01/2019] [Accepted: 03/14/2019] [Indexed: 12/15/2022] Open
Abstract
Objective: Losartan was reported to inhibit the progression of acute kidney injury (AKI), but little is known about the underlying pharmacological mechanisms. In the present study, the mRNA expression profiles in ischemic AKI rat kidney altered by losartan treatment were analyzed by next-generation deep sequencing technology.Methods: Ischemia and reperfusion treatment was applied to induce AKI in Sprague-Dawley (SD) rats. The urea and creatinine contents in rat blood were measured. H&E staining was performed to evaluate the histological alteration of rat kidney tissues under a microscope. The TUNEL method was applied to analyze apoptosis in rat kidney tissues. The mRNA profiles in rat kidney were analyzed using next-generation deep sequencing. Differential gene expression was confirmed by quantitative qRT-PCR.Results: The rat model of AKI induced by ischemia and reperfusion showed significant increases in urea and creatinine levels, accompanied by a disrupted kidney tubular structure and renal cell apoptosis. Losartan treatment effectively inhibited the changes in urea and creatinine, tubular structure, and apoptosis in AKI rat kidney. A large number of mRNAs were found to be differentially expressed in the kidneys of AKI rats treated with losartan, which are involved in multiple processes and signaling pathways. The expression of nine differentially expressed genes such as monocyte chemoattractant protein-1 (CCL2) and suppressor of cytokine signaling 3 (SOCS3) was confirmed by qRT-PCR and Western blot.Conclusion: Losartan caused significant alterations in the gene expression profile in AKI rat kidney, which mediated its anti-AKI effects.
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Zhang T, Chi Y, Ren Y, Du C, Shi Y, Li Y. Resveratrol Reduces Oxidative Stress and Apoptosis in Podocytes via Sir2-Related Enzymes, Sirtuins1 (SIRT1)/Peroxisome Proliferator-Activated Receptor γ Co-Activator 1α (PGC-1α) Axis. Med Sci Monit 2019; 25:1220-1231. [PMID: 30765684 PMCID: PMC6383436 DOI: 10.12659/msm.911714] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background PGC-1α can be activated by deacetylation reactions catalyzed by SIRT1. Resveratrol is currently known as a potent activator of SIRT1. However, it is unknown whether the renal-protective effect of resveratrol is further related to activation of the podocyte SIRT1/PGC-1α pathway. Material/Methods High glucose was used to stimulate mouse podocytes. Resveratrol and PGC-1α siRNA transfection were used to perform co-intervention treatments. The protein and mRNA expression levels of SIRT1, PGC-1α, NRF1, and TFAM were detect by immunofluorescence, Western blot analysis, and qRT-PCR in the podocytes, respectively. DCHF-DA and MitoSOX™ staining were used to monitor the total ROS and mitochondrial ROS levels, respectively. The specific activities of complexes I and III were measured using Complex I and III Assay Kits. Mitochondrial membrane potential and cell apoptosis were measured using JC-1 staining and Annexin V-FITC/PI double-staining, respectively. Results We found that high-glucose stimulation results in time-dependent decreases in the expression of SIRT1, PGC-1α, and its downstream genes NRF1 and mitochondrial transcription factor A (TFAM) for mouse podocytes, and increases ROS levels in cells and mitochondria. Moreover, the expression of nephrin was downregulated and the cell apoptotic rate was increased. Resveratrol treatment can improve abnormalities caused by high-glucose stimulation. In addition, it can also reduce the release of mitochondrial cytochrome C and DIABLO proteins to the cytoplasm and increase respiratory chain complex I and III activity and mitochondrial membrane potential. Conclusions Resveratrol can reduce the oxidative damage and apoptosis of podocytes induced by high-glucose stimulation via SIRT1/PGC-1α-mediated mitochondrial protection.
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Affiliation(s)
- Tao Zhang
- Department of Nephrology, Third Hospital, Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland)
| | - Yanqing Chi
- Department of Nephrology, Third Hospital, Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland)
| | - Yunzhuo Ren
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland).,Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Chunyang Du
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland).,Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Yonghong Shi
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland).,Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Ying Li
- Department of Nephrology, Third Hospital, Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, Hebei, China (mainland)
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Zheng G, Qu H, Li F, Ma W, Yang H. Propofol attenuates sepsis-induced acute kidney injury by regulating miR-290-5p/CCL-2 signaling pathway. ACTA ACUST UNITED AC 2018; 51:e7655. [PMID: 30328934 PMCID: PMC6190213 DOI: 10.1590/1414-431x20187655] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/13/2018] [Indexed: 11/22/2022]
Abstract
Previous studies have indicated that propofol has immunomodulatory and antioxidative properties. However, the renoprotection effect and the precise mechanisms of propofol in sepsis-induced renal injury remain unclear. The purpose of the present study was to investigate the role of miR-290-5p/CCL-2 signaling in septic mice treatment with propofol. Mice were treated with propofol (50 mg/kg) twice within 24 h. Survival outcome was monitored within 48 h. The mRNA and protein levels were assayed by qRT-PCR and western blotting, respectively. Mouse podocytes (MPC5) were treated with lipopolysaccharide (LPS) to establish the cell model in vitro. The proliferation of MPC5 was monitored using the MTS assay. Cell apoptosis was analyzed by flow cytometry. Propofol improved survival outcome and alleviated acute kidney injury in cecal ligation and puncture-operated mice. Propofol increased miR-290-5p expression and decreased CCL-2 and inflammatory cytokines levels in the kidney for septic mice. We found that miR-290-5p was a direct regulator of CCL-2 in MPC5. Propofol could abrogate LPS-induced growth inhibition and apoptosis in MPC5. Meanwhile, propofol inhibited CCL-2 expression in LPS-treated MPC5, however, knockdown of miR-290-5p abrogated the inhibitory effect propofol on the mRNA and protein expressions of CCL-2. Propofol could serve as an effective therapeutic medication to suppress sepsis-induced renal injury in vivo and in vitro by regulating the miR-290-5p/CCL-2 signaling pathway.
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Affiliation(s)
- Guodong Zheng
- Department of Critical Care Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hong Qu
- Department of Hematology, Guangzhou Panyu Central Hospital, Guangzhou, China
| | - Fen Li
- Department of Critical Care Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Weiquan Ma
- Department of Critical Care Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hong Yang
- Department of Critical Care Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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