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Çakır M, Saçmacı H. The relationship of salusins with Parkinson's Disease, Alzheimer's Disease, and acute ischemic stroke: A preliminary study. Neurosci Lett 2024; 824:137683. [PMID: 38350537 DOI: 10.1016/j.neulet.2024.137683] [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: 10/23/2023] [Revised: 02/05/2024] [Accepted: 02/09/2024] [Indexed: 02/15/2024]
Abstract
Neuroinflammation, oxidative stress, and apoptosis play important roles in the pathophysiology of Alzheimer's Disease (AD), Parkinson's Disease (PD), and Acute Ischemic Stroke (AIS). Salusin-α and salusin-β peptides, which were shown to be present in many tissues, including the central nervous system, were also shown to be associated with apoptosis, inflammation, and oxidative stress. In the present study, the relationship between Salusin-α and salusin-β peptides and AD, PD, and AIS were investigated. A total of 179 people were included in the present study, including 46 AD, 44 PD, 42 AIS, and 47 controls. Plasma Salusin-α and salusin-β levels were measured with the ELISA Method. The plasma salusin-β levels of AD, PD, and AIS patients were lower than the control group at significant levels (p < 0.05). It was also found that there were correlations between salusin-α and salusin-β levels and age, triglyceride, LDL-c, total cholesterol, and hemoglobin levels. In this study, we found that salusin- β, an endogenous neuropeptide, was associated with AD, PD and AIS. The low level of salusin-β in these diseases in which neuronal damage occurs may be related to the neuroprotective properties of this endogenous peptide. Further studies are needed to fully understand the relationship between salusin-β and the pathophysiology of these diseases.
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Affiliation(s)
- Murat Çakır
- Department of Physiology, Faculty of Medicine, University of Yozgat Bozok, Yozgat, 66200, Turkey.
| | - Hikmet Saçmacı
- Department of Neurology, Faculty of Medicine, University of Yozgat Bozok, Yozgat, 66200, Turkey.
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Dang JY, Zhang W, Chu Y, Chen JH, Ji ZL, Feng P. Downregulation of salusins alleviates hypertrophic cardiomyopathy via attenuating oxidative stress and autophagy. Eur J Med Res 2024; 29:109. [PMID: 38336819 PMCID: PMC10854150 DOI: 10.1186/s40001-024-01676-z] [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: 09/13/2023] [Accepted: 01/15/2024] [Indexed: 02/12/2024] Open
Abstract
INTRODUCTION Salusins, which are translated from the alternatively spliced mRNA of torsin family 2 member A (TOR2A), play a vital role in regulation of various cardiovascular diseases. However, it remains unclear precisely regarding their roles in hypertrophic cardiomyopathy (HCM). Therefore, this study was conducted to explore therapeutic effect and the underlying mechanisms of salusins on HCM. MATERIAL AND METHODS In vivo experiments, Sprague-Dawley rats were used to induce HCM model by angiotensin (Ang) II infusion for 4 weeks. The rats were randomly divided into four groups, namely, Saline + Control shRNA (n = 7), Ang II + Control shRNA (n = 8), Saline + TOR2A shRNA (n = 7), and Ang II + TOR2A shRNA groups (n = 8). After HCM induction, doppler echocardiography is recommended to evaluate heart function. In vitro experiments, primary neonatal rat cardiomyocytes (NRCMs) and cardiac fibroblasts (NRCFs) were obtained from newborn rats, and were treated with Ang II (10-6 M) for 24 h. RESULTS After treatment with Ang II, levels of salusin-α and salusin-β were elevated in serum and cardiac tissues of rats and in the neonatal rat cardiomyocytes and cardiac fibroblasts. Downregulation of salusins alleviated the Ang II-induced cardiac hypertrophy by suppressing the increased atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and beta-myosin heavy chain (β-MHC) and cardiac fibrosis by blocking collagen I, collagen III and transforming growth factor-beta (TGF-β), and it also attenuated oxidative stress by suppressing the increased reactive oxygen species (ROS) and malondialdehyde (MDA) levels and reversing the decreased superoxide dismutase (SOD) activity and autophagy by inhibiting the increased microtubule-associated protein light chain 3B (LC3B), Beclin1, autophagy related gene (Atg) 3 and Atg5 in the cardiac tissues of Ang II-infused rats and in the Ang II-treated NRCMs. CONCLUSIONS All these findings suggest that the levels of salusins were elevated in the HCM, and targeting of salusins contributes to alleviation of cardiac hypertrophy and fibrosis probably via attenuating oxidative stress and autophagy. Accordingly, targeting of salusins may be a strategy for HCM therapy.
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Affiliation(s)
- Jing-Yi Dang
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China
| | - Wei Zhang
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China
| | - Yi Chu
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China
| | - Jiang-Hong Chen
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China
| | - Zhao-Le Ji
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China
| | - Pin Feng
- Department of Cardiology, Tangdu Hospital, Airforce Medical University, No. 569 Xinsid Road, Xi'an, 710038, China.
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Huo A, Wang F. Berberine alleviates ischemia reperfusion injury induced AKI by regulation of intestinal microbiota and reducing intestinal inflammation. BMC Complement Med Ther 2024; 24:66. [PMID: 38291383 PMCID: PMC10826000 DOI: 10.1186/s12906-023-04323-y] [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: 02/26/2023] [Accepted: 12/22/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND It has been found that a variety of host disease states can exacerbate intestinal inflammation, leading to disruption of intestinal barrier function. Changes in the composition of the intestine microbiota, which affect downstream metabolites in turn, ultimately react against the host. OBJECTIVES We revealed the mechanism of berberine as an intestinal protective agent in rats with renal ischemia-reperfusion injury acute kidney injury (AKI). METHODS HE staining was performed to evaluate the pathological changes in the colon and kidney. 16 S rRNA analysis was performed to assess the intestinal microbiota. Intestine TLR4/NF-κB expression was assessed by western blot. Q-RT-PCR was performed to detect TLR4 in intestine and IL-6 and KIM-1 gene expression in the kidney. SPSS 22.0 was used to compare the data. RESULTS Rats with AKI exhibited increased relative abundances of Proteobacteria and Bacteroidetes and decreased relative abundances of Lactobacillus, Ruminococcus and Lachnospiraceae belonging to the phylum Firmicutes. The Sirt1-NF-κB-TLR4 pathway was involved in the occurrence process, accompanied by intestinal inflammation and oxidation. Berberine reversed the appeal change. CONCLUSION Berberine inhibits the intestinal biological barrier of Proteobacteria, reduces LPS production, exerts an anti-inflammatory effect, and delays the progression of AKI.
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Affiliation(s)
- Aijing Huo
- Department of Nephropathy and Immunology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
| | - Fengmei Wang
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China.
- Department of Gastroenterology and Hepatology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.
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Jin C, Cao Y, Li Y. Bone Mesenchymal Stem Cells Origin Exosomes are Effective Against Sepsis-Induced Acute Kidney Injury in Rat Model. Int J Nanomedicine 2023; 18:7745-7758. [PMID: 38144514 PMCID: PMC10743757 DOI: 10.2147/ijn.s417627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction The incidence and mortality rates of sepsis-induced acute kidney injury (SAKI) remain high, posing a substantial healthcare burden. Studies have implicated a connection between the development of SAKI and inflammation response, apoptosis, and autophagy. Moreover, evidence suggests that manipulating autophagy could potentially influence the prognosis of this condition. Notably, exosomes derived from bone mesenchymal stem cells (BMSCs-Exo) have exhibited promise in mitigating cellular damage by modulating pathways associated with inflammation, apoptosis, and autophagy. Thus, this study aims to investigate the influence of BMSCs-Exo on SAKI and the potential mechanisms that drive this impact. Methods The SAKI model was induced in HK-2 cells using lipopolysaccharide (LPS), while rats underwent cecal ligation and puncture (CLP) to simulate the condition. Cell viability was assessed using the CCK-8 kit, and kidney damage was evaluated through HE staining, blood urea nitrogen (BUN), and serum creatinine (SCr) measurements. Inflammatory-related RNAs and proteins were quantified via qPCR and ELISA, respectively. Apoptosis was determined through apoptosis-related protein levels, flow cytometry, and TUNEL staining. Western blot analysis was utilized to measure associated protein expressions. Results In vivo, BMSCs-Exo ameliorated kidney injury in CLP-induced SAKI rats, reducing inflammatory cytokine production and apoptosis levels. Fluorescence microscope observed the absorption of BMSCs-Exo by renal cells following injection via tail vein. In the SAKI rat kidney tissue, there was an upregulation of LC3-II/LC3-I, p62, and phosphorylated AMP-activated protein kinase (p-AMPK) expressions, indicating blocked autophagic flux, while phosphorylated mammalian target of rapamycin (p-mTOR) expression was downregulated. However, BMSCs-Exo enhanced LC3-II/LC3-I and p-AMPK expression, concurrently reducing p62 and p-mTOR levels. In vitro, BMSCs-Exo enhanced cell viability in LPS-treated HK-2 cells, and exerted anti-inflammation and anti-apoptosis effects which were consistent with the results in vivo. Similarly, rapamycin (Rapa) exhibited a protective effect comparable to BMSCs-Exo, albeit partially abrogated by 3-methyladenine (3-MA). Conclusion BMSCs-Exo mitigate inflammation and apoptosis through autophagy in SAKI, offering a promising avenue for SAKI treatment.
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Affiliation(s)
- Cui Jin
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Yongmei Cao
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Yingchuan Li
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
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Huang F, Deng Z, Zhang Q, Zhang Z, Li X, Zeng W, Wang Y, Hei Z, Yuan D. Dual-regulation by Cx32 in hepatocyte to trigger and worsen liver graft injury. Transl Res 2023; 262:44-59. [PMID: 37507007 DOI: 10.1016/j.trsl.2023.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/28/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
Liver transplantation is the ultimate treatment option for end-stage liver failure. However, liver graft injury remains a challenge. This study aimed to investigate the role of connexin32 (Cx32) in liver graft injury and elucidate its mechanism of action. Through detecting liver graft samples from 6 patients, we observed that changes in the Cx32 level coincided with liver graft injury. Therefore, we established autologous orthotopic liver transplantation (AOLT) models using Cx32-knockout and wild-type mice and hypoxia/reoxygenation (H/R) and lipopolysaccharide (LPS) pretreatment models using alpha mouse liver 12 (AML12) cells, to explore Cx32 mechanisms in liver graft injury. Following in vivo and in vitro Cx32 knockout, oxidative stress and inflammatory response were inhibited through the regulation of PKC-α/NF-κB/NLRP3 and Nrf2/NOX4/ROS signaling pathways, thereby reducing Bak/Bax-related apoptosis and ameliorating liver graft injury. When the Cx32-based gap junction (GJ) was blocked with 2-aminoethoxydiphenyl borate (2-APB), ROS transfer was attenuated between neighboring cells, exacerbated oxidative stress and inflammatory response were prevented, and aggravation of liver graft injury was mitigated. These results highlight the dual regulation mechanism of Cx32 in liver graft injury. Through interaction with PKC-α, Cx32 regulated the NF-κB/NLRP3 and Nrf2/NOX4/ROS signaling pathways, thus directly triggering oxidative stress and inflammatory response. Simultaneously, mass-produced ROS were transferred to neighboring cells through Cx32 channels, for which oxidative stress and the inflammatory response were aggravated indirectly. Finally, Bak/Bax-related apoptosis was activated, thereby worsening liver graft injury. Our findings propose Cx32 as a dual mechanistic factor for oxidative stress and inflammatory signaling pathways in regulating cell apoptosis on liver graft injury, which suggests a promising therapeutic targets for liver graft injury.
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Affiliation(s)
- Fei Huang
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Zhizhao Deng
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Qian Zhang
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Zheng Zhang
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Xianlong Li
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Weiqi Zeng
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Yanling Wang
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China.
| | - Ziqing Hei
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China.
| | - Dongdong Yuan
- Department of Anesthesiology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China.
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Tong L, Rao J, Yang C, Xu J, Lu Y, Zhang Y, Cang X, Xie S, Mao J, Jiang P. Mutational burden of XPNPEP3 leads to defects in mitochondrial complex I and cilia in NPHPL1. iScience 2023; 26:107446. [PMID: 37599822 PMCID: PMC10432713 DOI: 10.1016/j.isci.2023.107446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/29/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Nephronophthisis-like nephropathy-1 (NPHPL1) is a rare ciliopathy, caused by mutations of XPNPEP3. Despite a well-described monogenic etiology, the pathogenesis of XPNPEP3 associated with mitochondrial and ciliary function remains elusive. Here, we identified novel compound heterozygous mutations in NPHPL1 patients with renal lesion only or with extra bone cysts together. Patient-derived lymphoblasts carrying c.634G>A and c.761G>T together exhibit elevated mitochondrial XPNPEP3 levels via the reduction of mRNA degradation, leading to mitochondrial dysfunction in both urine tubular epithelial cells and lymphoblasts from patient. Mitochondrial XPNPEP3 was co-immunoprecipitated with respiratory chain complex I and was required for the stability and activity of complex I. Deletion of Xpnpep3 in mice resulted in lower activity of complex I, elongated primary cilium, and predisposition to tubular dilation and fibrosis under stress. Our findings provide valuable insights into the mitochondrial functions involved in the pathogenesis of NPHP.
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Affiliation(s)
- Lingxiao Tong
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
| | - Jia Rao
- Department of Nephrology, Children’s Hospital of Fudan University, National Pediatric Medical Center of China, Shanghai, China
| | - Chenxi Yang
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
- Department of Human Genetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Jie Xu
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
| | - Yijun Lu
- Department of Human Genetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuchen Zhang
- Department of Human Genetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaohui Cang
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
- Department of Human Genetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Shanshan Xie
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
| | - Jianhua Mao
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
- Zhejiang Key Laboratory for Neonatal Diseases, The Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Pingping Jiang
- Department of Nephrology, The Children’s Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, China
- Department of Human Genetics, Zhejiang University School of Medicine, Hangzhou, China
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Xu Z, Zhang M, Wang W, Zhou S, Yu M, Qiu X, Jiang S, Wang X, Tang C, Li S, Wang CH, Zhu R, Peng WX, Zhao L, Fu X, Patzak A, Persson PB, Zhao L, Mao J, Shu Q, Lai EY, Zhang G. Dihydromyricetin attenuates cisplatin-induced acute kidney injury by reducing oxidative stress, inflammation and ferroptosis. Toxicol Appl Pharmacol 2023; 473:116595. [PMID: 37328118 DOI: 10.1016/j.taap.2023.116595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Cisplatin is effective against various types of cancers. However, its clinical application is limited owing to its adverse effects, especially acute kidney injury (AKI). Dihydromyricetin (DHM), a flavonoid derived from Ampelopsis grossedentata, has varied pharmacological activities. This research aimed to determine the molecular mechanism for cisplatin-induced AKI. METHODS A murine model of cisplatin-induced AKI (22 mg/kg, I.P.) and a HK-2 cell model of cisplatin-induced damage (30 μM) were established to evaluate the protective function of DHM. Renal dysfunction markers, renal morphology and potential signaling pathways were investigated. RESULTS DHM decreased the levels of renal function biomarkers (blood urea nitrogen and serum creatinine), mitigated renal morphological damage, and downregulated the protein levels of kidney injury molecule-1 and neutrophil gelatinase-associated lipocalin. It upregulated the expression levels of antioxidant enzymes (superoxide dismutase and catalase expression), nuclear factor-erythroid-2-related factor 2 (Nrf2) and its downstream proteins, including heme oxygenase-1 (HO-1), glutamate-cysteine ligase catalytic (GCLC) and modulatory (GCLM) subunits, thus eventually reducing cisplatin-induced reactive oxygen species (ROS) production. Moreover, DHM partially inhibited the phosphorylation of the active fragments of caspase-8 and -3 and mitogen-activated protein kinase and restored glutathione peroxidase 4 expression, which attenuated renal apoptosis and ferroptosis in cisplatin-treated animals. DHM also mitigated the activation of NLRP3 inflammasome and nuclear factor (NF)-κB, attenuating the inflammatory response. In addition, it reduced cisplatin-induced HK-2 cell apoptosis and ROS production, both of which were blocked by the Nrf2 inhibitor ML385. CONCLUSIONS DHM suppressed cisplatin-induced oxidative stress, inflammation and ferroptosis probably through regulating of Nrf2/HO-1, MAPK and NF-κB signaling pathways.
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Affiliation(s)
- Zheming Xu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Minjing Zhang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Wenwen Wang
- Department of Pathology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310051, China
| | - Suhan Zhou
- Department of Physiology, School of Basic Medical Sciences, and Kidney Disease Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Minghua Yu
- Department of Pathology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Xingyu Qiu
- Department of Physiology, School of Basic Medical Sciences, and Kidney Disease Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Shan Jiang
- Department of Nephrology, Center of Kidney and Urology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Xiaohua Wang
- Department of Nephrology, Center of Kidney and Urology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Chun Tang
- Department of Nephrology, Center of Kidney and Urology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Shuijie Li
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Chih-Hong Wang
- Tulane Hypertension and Renal Center of Excellence, Department of Physiology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Runzhi Zhu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Wan Xin Peng
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Lin Zhao
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Xiaodong Fu
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 510260, China
| | - Andreas Patzak
- Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Institute of Translational Physiology, Berlin, Germany
| | - Pontus B Persson
- Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Institute of Translational Physiology, Berlin, Germany
| | - Liang Zhao
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China; Children's Hospital, Zhejiang University School of Medicine, Pediatric Nephrology & Urology Medical Research Center, Hangzhou 310052, China
| | - Jianhua Mao
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China; Children's Hospital, Zhejiang University School of Medicine, Pediatric Nephrology & Urology Medical Research Center, Hangzhou 310052, China
| | - Qiang Shu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China.
| | - En Yin Lai
- Department of Physiology, School of Basic Medical Sciences, and Kidney Disease Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Institute of Translational Physiology, Berlin, Germany.
| | - Gensheng Zhang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China; Children's Hospital, Zhejiang University School of Medicine, Pediatric Nephrology & Urology Medical Research Center, Hangzhou 310052, China.
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Liu Z, Yao X, Jiang W, Zhou Z, Yang M. Sodium butyrate enhances titanium nail osseointegration in ovariectomized rats by inhibiting the PKCα/NOX4/ROS/NF-κB pathways. J Orthop Surg Res 2023; 18:556. [PMID: 37528483 PMCID: PMC10394859 DOI: 10.1186/s13018-023-04013-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/14/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Elevated levels of oxidative stress as a consequence of estrogen deficiency serve as a key driver of the onset of osteoporosis (OP). In addition to increasing the risk of bone fractures, OP can reduce the bone volume proximal to titanium nails implanted to treat these osteoporotic fractures, thereby contributing to titanium nail loosening. Sodium butyrate (NaB) is a short-chain fatty acid produced by members of the gut microbiota that exhibits robust antioxidant and anti-inflammatory properties. METHODS OP fracture model rats parameters including bone mineral density (BMD), new bone formation, and the number of bonelets around the implanted nail were analyzed via micro-CT scans, H&E staining, and Masson's staining. The protective effects of NaB on such osseointegration and the underlying mechanisms were further studied in vitro using MC3T3-E1 cells treated with carbonyl cyanide m-chlorophenylhydrazone (CCCP) to induce oxidative stress. Techniques including Western immunoblotting, electron microscopy, flow cytometry, alkaline phosphatase (ALP) staining, and osteoblast mineralization assays were employed to probe behaviors such as reactive oxygen species production, mineralization activity, ALP activity, protein expression, and the ability of cells to attach to and survive on titanium plates. RESULTS NaB treatment was found to enhance ALP activity, mineralization capacity, and Coll-I, BMP2, and OCN expression levels in CCCP-treated MC3T3-E1 cells, while also suppressing PKC and NF-κB expression and enhancing Nrf2 and HO-1 expression in these cells. NaB further suppressed intracellular ROS production and malondialdehyde levels within the cytosol while enhancing superoxide dismutase activity and lowering the apoptotic death rate. In line with these results, in vivo work revealed an increase in BMD in NaB-treated rats that was associated with enhanced bone formation surrounding titanium nails. CONCLUSION These findings indicate that NaB may represent a valuable compound that can be postoperatively administered to aid in treating OP fractures through the enhancement of titanium nail osseointegration.
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Affiliation(s)
- Zhiyi Liu
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, 241001, People's Republic of China
| | - Xuewei Yao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, 241001, People's Republic of China
| | - Wenkai Jiang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, 241001, People's Republic of China
| | - Zhi Zhou
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, 241001, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, 241001, People's Republic of China.
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Shoeibi A, Karimi E, Zareian M, Oskoueian E. Enhancing Healthcare Outcomes and Modulating Apoptosis- and Antioxidant-Related Genes through the Nano-Phytosomal Delivery of Phenolics Extracted from Allium ampeloprasum. Genes (Basel) 2023; 14:1547. [PMID: 37628599 PMCID: PMC10454362 DOI: 10.3390/genes14081547] [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: 05/12/2023] [Revised: 07/17/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
The application of nano drug delivery systems, particularly those utilizing natural bioactive compounds with anticancer properties, has gained significant attention. In this study, a novel nano-phytosome-loaded phenolic rich fraction (PRF) derived from Allium ampeloprasum L. was developed. The antitumor activity of the formulation was evaluated in BALB/c mice with TUBO colon carcinoma. The PRF-loaded nano-phytosome (PRF-NPs) exhibited a sphere-shaped structure (226 nm) and contained a diverse range of phenolic compounds. Animal trials conducted on TUBO tumor-bearing mice demonstrated that treatment with PRF-NPs at a dosage of 50 mg TPC/Kg/BW resulted in significant improvements in body weight and food intake, while reducing liver enzymes and lipid peroxidation. The expression of apoptosis-related genes, such as Bax and caspase-3, was upregulated, whereas Bcl2 was significantly downregulated (p < 0.05). Furthermore, the expression of GPx and SOD genes in the liver was notably increased compared to the control group. The findings suggest that the phytosomal encapsulation of the phenolic rich fraction derived from Allium ampeloprasum L. can enhance the bioavailability of natural phytochemicals and improve their antitumor properties. The development of PRF-NPs as a nano drug delivery system holds promise for effective breast cancer treatment.
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Affiliation(s)
- Ali Shoeibi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Ehsan Karimi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Mohsen Zareian
- Department of Life Sciences, Chalmers University of Technology, Göteborg, Sweden
| | - Ehsan Oskoueian
- Industrial and Mineral Research Center, Arka Industrial Cluster, Mashhad, Iran
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Hajialilo M, Jorjani R, Rahimi M, Ghorbanihaghjo A, Malek Mahdavi A, Ghojazadeh M, Khabbazi A. Serum salusin-β levels in patients with systemic lupus erythematosus. Clin Rheumatol 2023:10.1007/s10067-023-06610-y. [PMID: 37120490 DOI: 10.1007/s10067-023-06610-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/15/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
OBJECTIVE Endothelial dysfunction (ED) has an important role in the pathogenesis of systemic lupus erythematosus (SLE). Studies on other inflammatory diseases show that salusin-β with various mechanisms may play a role in the promotion of ED and inflammation. The aim of this study was to measure serum salusin-β levels in SLE patients and evaluate it as a potential biomarker in assessing SLE activity and predicting organ involvement. METHODS In a cross-sectional study, 60 patients diagnosed with SLE and 30 age- and sex-matched healthy controls were enrolled. Disease activity of SLE patients was assessed by the systemic lupus erythematosus disease activity index 2000 (SLEDAI-2 K). Serum levels of salusin-ß were measured using a human salusin-ß enzyme-linked immunosorbent assay kit. RESULTS Serum salusin-β levels in SLE and control groups were 474.2 ± 117.1 pg/ml and 157.7 ± 88.7 pg/ml, respectively. The difference was significant (P = 0.001). There was no significant correlation between serum salusin-β levels with age (r = - 0.06, P = 0.632) and SLEDAI (r = - 0.185, P = 0.158). In patients with nephritis and thrombosis, serum salusin-β was significantly higher. In addition, in patients with serositis, serum salusin-β was significantly lower. Multiple linear regression analysis showed that serum salusin-β levels retained a significant association with nephritis and thrombosis after model adjustment for serositis, nephritis, and thrombosis. CONCLUSIONS Our findings showed that salusin-β might have a possible role in the pathogenesis of SLE. Salusin-β may be a potential biomarker for nephritis and thrombosis in SLE. Key Points • Serum salusin-β levels were significantly higher in SLE patients than the control group. • There was no significant correlation between serum salusin-β levels with age and SLEDAI. • Serum salusin-β levels retained a significant association with nephritis and thrombosis.
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Affiliation(s)
- Mehrzad Hajialilo
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Golgasht St, P.O Box 5166614756, Tabriz, Iran
| | - Razieh Jorjani
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Golgasht St, P.O Box 5166614756, Tabriz, Iran
| | - Mehran Rahimi
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Golgasht St, P.O Box 5166614756, Tabriz, Iran
| | - Amir Ghorbanihaghjo
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aida Malek Mahdavi
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Golgasht St, P.O Box 5166614756, Tabriz, Iran
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Rahat Breathe and Sleep Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Ghojazadeh
- Research Center for Evidence-Based Medicine, A Joanna Briggs Institute Affiliated Group, Health Management and Safety Promotion Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Khabbazi
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Golgasht St, P.O Box 5166614756, Tabriz, Iran.
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Hu BC, Zhu JW, Wu GH, Cai JJ, Yang X, Shao ZQ, Zheng Y, Lai JM, Shen Y, Yang XH, Liu JQ, Sun RH, Zhu HP, Ye XM, Mo SJ. Auto- and paracrine rewiring of NIX-mediated mitophagy by insulin-like growth factor-binding protein 7 in septic AKI escalates inflammation-coupling tubular damage. Life Sci 2023; 322:121653. [PMID: 37011875 DOI: 10.1016/j.lfs.2023.121653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
AIMS Inflammation-coupling tubular damage (ICTD) contributes to pathogenesis of septic acute kidney injury (AKI), in which insulin-like growth factor-binding protein 7 (IGFBP-7) serves as a biomarker for risk stratification. The current study aims to discern how IGFBP-7 signalling influences ICTD, the mechanisms that underlie this process and whether blockade of the IGFBP-7-dependent ICTD might have therapeutic value for septic AKI. MATERIALS AND METHODS In vivo characterization was carried out in B6/JGpt-Igfbp7em1Cd1165/Gpt mice subjected to cecal ligation and puncture (CLP). Transmission electron microscopy, immunofluorescence, flow cytometry, immunoblotting, ELISA, RT-qPCR and dual-luciferase reporter assays were used to determine mitochondrial functions, cell apoptosis, cytokine secretion and gene transcription. KEY FINDINGS ICTD augments the transcriptional activity and protein secretion of tubular IGFBP-7, which enables an auto- and paracrine signalling via deactivation of IGF-1 receptor (IGF-1R). Genetic knockout (KO) of IGFBP-7 provides renal protection, improves survival and resolves inflammation in murine models of cecal ligation and puncture (CLP), while administering recombinant IGFBP-7 aggravates ICTD and inflammatory invasion. IGFBP-7 perpetuates ICTD in a NIX/BNIP3-indispensable fashion through dampening mitophagy that restricts redox robustness and preserves mitochondrial clearance programs. Adeno-associated viral vector 9 (AAV9)-NIX short hairpin RNA (shRNA) delivery ameliorates the anti-septic AKI phenotypes of IGFBP-7 KO. Activation of BNIP3-mediated mitophagy by mitochonic acid-5 (MA-5) effectively attenuates the IGFBP-7-dependent ICTD and septic AKI in CLP mice. SIGNIFICANCE Our findings identify IGFBP-7 is an auto- and paracrine manipulator of NIX-mediated mitophagy for ICTD escalation and propose that targeting the IGFBP-7-dependent ICTD represents a novel therapeutic strategy against septic AKI.
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Affiliation(s)
- Bang-Chuan Hu
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Jing-Wen Zhu
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Guo-Hua Wu
- Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310029, Zhejiang, PR China
| | - Juan-Juan Cai
- Department of Pathology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Xue Yang
- Clinical Research Institute, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Zi-Qiang Shao
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Yang Zheng
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Jun-Mei Lai
- Center for Rehabilitation Medicine, Department of Intensive Rehabilitation Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China; Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Ye Shen
- Center for Rehabilitation Medicine, Department of Intensive Rehabilitation Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China; Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Xiang-Hong Yang
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Jing-Quan Liu
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Ren-Hua Sun
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Hai-Ping Zhu
- Department of Intensive Care Unit, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Xiang-Ming Ye
- Center for Rehabilitation Medicine, Department of Intensive Rehabilitation Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China; Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China
| | - Shi-Jing Mo
- Emergency and Intensive Care Unit Center, Intensive Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China; Center for Rehabilitation Medicine, Department of Intensive Rehabilitation Care Unit, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China; Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, PR China.
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Bardoxolone Methyl Ameliorates Myocardial Ischemia/Reperfusion Injury by Activating the Nrf2/HO-1 Signaling Pathway. Cardiovasc Ther 2023; 2023:5693732. [PMID: 36874247 PMCID: PMC9977528 DOI: 10.1155/2023/5693732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 02/24/2023] Open
Abstract
Background Myocardial ischemia/reperfusion (I/R) injury is a severe heart problem resulting from restoring coronary blood flow to the myocardium after ischemia. This study is aimed at ascertaining the therapeutic efficiency and action mechanism of bardoxolone methyl (BARD) in myocardial I/R injury. Methods In male rats, myocardial ischemia was performed for 0.5 h, and then, reperfusion lasted for 24 h. BARD was administrated in the treatment group. The animal's cardiac function was measured. Myocardial I/R injury serum markers were detected via ELISA. The 2,3,5-triphenyltetrazolium chloride (TTC) staining was used to estimate the infarction. H&E staining was used to evaluate the cardiomyocyte damage, and Masson trichrome staining was used to observe the proliferation of collagen fiber. The apoptotic level was assessed via the caspase-3 immunochemistry and TUNEL staining. Oxidative stress was measured through malondialdehyde, 8-hydroxy-2'-deoxyguanosine, superoxide dismutase, and inducible nitric oxide synthases. The alteration of the Nrf2/HO-1 pathway was confirmed via western blot, immunochemistry, and PCR analysis. Results The protective effect of BARD on myocardial I/R injury was observed. In detail, BARD decreased cardiac injuries, reduced cardiomyocyte apoptosis, and inhibited oxidative stress. For mechanisms, BARD treatment significantly activates the Nrf2/HO-1 pathway. Conclusion BARD ameliorates myocardial I/R injury by inhibiting oxidative stress and cardiomyocyte apoptosis via activating the Nrf2/HO-1 pathway.
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miR-22 alleviates sepsis-induced acute kidney injury via targeting the HMGB1/TLR4/NF-κB signaling pathway. Int Urol Nephrol 2023; 55:409-421. [PMID: 35960478 PMCID: PMC9859886 DOI: 10.1007/s11255-022-03321-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 07/24/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is a severe complication of sepsis, and is strongly correlated with MicroRNAs (miRNAs). However, the mechanism of miR-22 on sepsis-induced AKI is not clearly understood. The study aimed to explore the role and mechanism of miR-22 on AKI. METHODS The AKI models were established by cecal ligation and puncture (CLP) surgery in SD rats and lipopolysaccharide (LPS) induction in HBZY-1 cells. In AKI rats, the content of serum creatinine (SCr) and blood urea nitrogen (BUN) were detected. Kidney tissues were pathologically examined by H&E and PAS staining. The LPS-induced HBZY-1 cells were transfected with mimics miR-22, si-HMGB1, or oe-HMGB1. miR-22 and HMGB1 expression was detected in vivo and in vitro. In transfected cells, HMGB1/TLR4/NF-κB pathway-related protein expressions were measured by Western blot. The relationship between miR-22 and HMGB1 was assessed by a dual-luciferase gene report. Inflammatory cytokine levels in serum and cells were assessed by ELISA. RESULTS In AKI rats, kidney injury was observed, accompanied by the down-regulated miR-122 expression and up-regulated HMBG1 expression. The dual-luciferase report found miR-22-3p could targetly regulate HMBG1. Furthermore, both in vitro and in vivo experiments revealed that the releases of inflammatory cytokine were increased after AKI modeling, but the situation was reversed by mimics miR-22 or si-HMGB1 in vitro. In HBZY-1 cells, mimics miR-22 could suppress LPS-induced overexpression of HMGB1/TLR4/NF-κB signaling pathway-related proteins. However, the oe-HMGB1 addition reversed the effect of mimics miR-22. CONCLUSION miR-22 can inhibit the inflammatory response, target the HMGB1, and inhibit the HMGB1/TLR4/NF-kB pathway, to attenuate the sepsis-induced AKI, which indicates that miR-22 may serve as a potential treatment target in sepsis-induced AKI.
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14
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Wang Y, Liu Z, Ma J, Xv Q, Gao H, Yin H, Yan G, Jiang X, Yu W. Lycopene attenuates the inflammation and apoptosis in aristolochic acid nephropathy by targeting the Nrf2 antioxidant system. Redox Biol 2022; 57:102494. [PMID: 36198206 PMCID: PMC9530962 DOI: 10.1016/j.redox.2022.102494] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 10/31/2022] Open
Abstract
Lycopene (LYC) is a carotenoid, has antioxidant properties. This study investigated whether lycopene attenuates aristolochic acids (AAs) -induced chronic kidney disease. In this experiment, lycopene was used to intervene C57BL/6 mice with renal injury induced by aristolochic acid exposure. The histomorphological changes and serological parameters of the kidney were measured in order to assess the alleviating effect of lycopene on renal injury in aristolochic acid nephropathy. In vitro and in vivo experiments were carried out to verify the main mechanism of action and drug targets of lycopene in improving aristolochic acid nephropathy (AAN) and by various experimental methods such as ELISA, immunohistochemistry, immunofluorescence, Western-blot and qRT-PCR. The results showed that oxidative stress injury was induced in the kidney of mice after AAI exposure, resulting in inflammatory response and tubular epithelial cell apoptosis. The results showed that the Nrf2/HO-1 antioxidant signaling pathway was inhibited after AAI exposure. AAI induces oxidative stress injury in the kidney, which ultimately leads to inflammation and tubular epithelial cell apoptosis. After LYC intervened in the body, it activated Nrf2 nuclear translocation and its downstream HO-1 and NQO1 antioxidant signaling pathways. LYC inhibited ROS production by renal tubular epithelial cells, and alleviated mitochondrial damage. LYC further modulated the TNF-α/NF-κB signaling cascade, thereby reduced the accumulation of inflammatory factors in the renal interstitium. Moreover, LYC was able to up-regulate the expression of Bcl-2, down-regulate Bax expression and inhibit the activation of cleaved forms of Caspase-9 and Caspase-3, which finally attenuated the apoptosis of the mitochondrial pathway induced by AAI exposure. It was concluded that lycopene was able to activate the Nrf2 antioxidant signaling pathway to maintain the homeostasis of renal oxidative stress and ultimately attenuated renal inflammatory response and apoptosis. These results suggested that lycopene can be used as a drug to relieve AAN.
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Affiliation(s)
- Yu Wang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Zhihui Liu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jun Ma
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Qingyang Xv
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Hongxin Gao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Hang Yin
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Ge Yan
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Xiaowen Jiang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Wenhui Yu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Heilongjiang Provincial Key Laboratory for Prevention and Control of Common Animal Diseases, Northeast Agricultural University, Harbin, 150030, China; Institute of Chinese Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
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15
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Ban KY, Nam GY, Kim D, Oh YS, Jun HS. Prevention of LPS-Induced Acute Kidney Injury in Mice by Bavachin and Its Potential Mechanisms. Antioxidants (Basel) 2022; 11:2096. [PMID: 36358467 PMCID: PMC9686515 DOI: 10.3390/antiox11112096] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/17/2022] [Accepted: 10/21/2022] [Indexed: 09/28/2023] Open
Abstract
Acute kidney injury (AKI) is a serious complication of sepsis with a rapid onset and high mortality rate. Bavachin, an active component of Psoralea corylifolia L., reportedly has antioxidant, anti-apoptotic, and anti-inflammatory effects; however, its beneficial effects on AKI remain undetermined. We investigated the protective effect of bavachin on lipopolysaccharide (LPS)-induced AKI in mice and elucidated the underlying mechanism in human renal tubular epithelial HK-2 cells. Increased serum creatinine and blood urea nitrogen levels were observed in LPS-injected mice; however, bavachin pretreatment significantly inhibited this increase. Bavachin improved the kidney injury score and decreased the expression level of tubular injury markers, such as neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1), in both LPS-injected mice and LPS-treated HK-2 cells. LPS-induced oxidative stress via phosphorylated protein kinase C (PKC) β and upregulation of the NADPH oxidase (NOX) 4 pathway was also significantly decreased by treatment with bavachin. Moreover, bavachin treatment inhibited the phosphorylation of MAPKs (P38, ERK, and JNK) and nuclear factor (NF)-κB, as well as the increase in inflammatory cytokine levels in LPS-injected mice. Krüppel-like factor 5 (KLF5) expression was upregulated in the LPS-treated HK-2 cells and kidneys of LPS-injected mice. However, RNAi-mediated silencing of KLF5 inhibited the phosphorylation of NF-kB, consequently reversing LPS-induced KIM-1 and NGAL expression in HK-2 cells. Therefore, bavachin may ameliorate LPS-induced AKI by inhibiting oxidative stress and inflammation via the downregulation of the PKCβ/MAPK/KLF5 axis.
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Affiliation(s)
- Ka-Yun Ban
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
| | - Ga-Young Nam
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
| | - Donghee Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - Yoon Sin Oh
- Department of Food and Nutrition, Eulji University, Seongnam 13135, Korea
| | - Hee-Sook Jun
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
- Gachon Medical Research Institute, Gil Hospital, Incheon 21565, Korea
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Yang W, Yue H, Lu G, Wang W, Deng Y, Ma G, Wei W. Advances in Delivering Oxidative Modulators for Disease Therapy. Research (Wash D C) 2022. [DOI: 10.34133/2022/9897464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Oxidation modulators regarding antioxidants and reactive oxygen species (ROS) inducers have been used for the treatment of many diseases. However, a systematic review that refers to delivery system for divergent modulation of oxidative level within the biomedical scope is lacking. To provide a comprehensive summarization and analysis, we review pilot designs for delivering the oxidative modulators and the main applications for inflammatory treatment and tumor therapy. On the one hand, the antioxidants based delivery system can be employed to downregulate ROS levels at inflammatory sites to treat inflammatory diseases (e.g., skin repair, bone-related diseases, organ dysfunction, and neurodegenerative diseases). On the other hand, the ROS inducers based delivery system can be employed to upregulate ROS levels at the tumor site to kill tumor cells (e.g., disrupt the endogenous oxidative balance and induce lethal levels of ROS). Besides the current designs of delivery systems for oxidative modulators and the main application cases, prospects for future research are also provided to identify intelligent strategies and inspire new concepts for delivering oxidative modulators.
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Affiliation(s)
- Wei Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Hua Yue
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Guihong Lu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Wenjing Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yuan Deng
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- Department of Orthopedics, Fourth Medical Center, General Hospital of Chinese PLA, Beijing, China
| | - Guanghui Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
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Inhibition of PLK3 Attenuates Tubular Epithelial Cell Apoptosis after Renal Ischemia–Reperfusion Injury by Blocking the ATM/P53-Mediated DNA Damage Response. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4201287. [PMID: 35783188 PMCID: PMC9249506 DOI: 10.1155/2022/4201287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/18/2022] [Accepted: 05/03/2022] [Indexed: 11/17/2022]
Abstract
Objective Renal ischemia–reperfusion (I/R) injury is a major cause of acute kidney injury (AKI) in transplanted kidneys. This study was aimed at exploring the role of PLK3 (polo-like kinase 3) in renal I/R injury, focusing on its relationship with oxidative stress-induced DNA damage and renal tubular epithelial cell (TEC) apoptosis. Methods TRAP-seq data from the development dataset GSE52004 and the validation dataset GSE121191 were analyzed using GEO2R. PLK3 overexpression plasmids and targeted silencing siRNAs were used in a model of hypoxia/reoxygenation (H/R) injury, and rAAV-9-PLK3-KD were administered to C57BL/6J mice exposed to I/R injury. The ATM-specific inhibitor KU-60019 was used to block the DNA damage response (DDR). Western blotting was performed to measure DDR- and apoptosis-associated protein expression. Cell viability was measured by CCK-8 reagent, and apoptosis was examined by flow cytometry and TUNEL assay. Furthermore, the fluorescent probes H2DCFH-DA and DHE were used to measure ROS production in vitro. The MDA level and SOD activity were measured to assess oxidative stress in vivo. KIM-1 staining and Scr and BUN were used to evaluate kidney injury. Results The mRNA and protein levels of PLK3 were markedly increased in the H/R injury and I/R injury models. GO terms showed that PLK3 was mainly involved in oxidative stress and DNA damage after renal I/R injury. Overexpression of PLK3 decreased cell viability and increased apoptosis. In contrast, targeted silencing of PLK3 expression decreased the Bax/Bcl-2 ratio by decreasing P53 phosphorylation, thereby reducing TEC apoptosis. Furthermore, KU-60019 reduced PLK3 activation and DDR-induced apoptosis, while overexpression of PLK3 reversed the mitigating effect of KU-60019 on TEC apoptosis. Similarly, rAAV-9-PLK3 KD mice exhibited a lower rate of TEC apoptosis and milder renal damage after I/R injury. Conclusion We demonstrate for the first time that PLK3 is involved in oxidative stress-induced DNA damage and TEC apoptosis in renal I/R injury. Inhibition of PLK3 attenuates TEC apoptosis after I/R injury by blocking the ATM/P53-mediated DDR. Therefore, PLK3 may serve as a potential therapeutic target for ischemic AKI.
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Liang NN, Zhao Y, Guo YY, Zhang ZH, Gao L, Yu DX, Xu DX, Xu S. Mitochondria-derived reactive oxygen species are involved in renal cell ferroptosis during lipopolysaccharide-induced acute kidney injury. Int Immunopharmacol 2022; 107:108687. [DOI: 10.1016/j.intimp.2022.108687] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 12/14/2022]
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Wang S, Zhu H, Li R, Mui D, Toan S, Chang X, Zhou H. DNA-PKcs interacts with and phosphorylates Fis1 to induce mitochondrial fragmentation in tubular cells during acute kidney injury. Sci Signal 2022; 15:eabh1121. [PMID: 35290083 DOI: 10.1126/scisignal.abh1121] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The catalytic subunit of DNA-dependent protein kinase (DNA-PKcs) regulates cell death. We sought to determine whether DNA-PKcs played a role in the tubular damage that occurs during acute kidney injury (AKI) induced by LPS injection (to mimic sepsis), cisplatin administration, or renal ischemia/reperfusion injury. Although DNA-PKcs normally localizes to the nucleus, we detected cytoplasmic DNA-PKcs in mouse kidney tissues and urinary sediments of human patients with septic AKI. Increased cytoplasmic amounts of DNA-PKcs correlated with renal dysfunction. Tubule cell-specific DNA-PKcs deletion attenuated AKI-mediated tubular cell death and changes in the abundance of various proteins with mitochondrial functions or roles in apoptotic pathways. DNA-PKcs interacted with Fis1 and phosphorylated it at Thr34 in its TQ motif, which increased the affinity of Fis1 for Drp1 and induced mitochondrial fragmentation. Knockin mice expressing a nonphosphorylatable T34A mutant exhibited improved renal function and histological features and reduced mitochondrial fragmentation upon induction of AKI. Phosphorylation of Thr34 in Fis1 was detectable in urinary sediments of human patients with septic AKI and correlated with renal dysfunction. Our findings provide insight into the role of cytoplasmic DNA-PKcs and phosphorylated Fis1 in AKI development.
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Affiliation(s)
- Shiyuan Wang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Hang Zhu
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Ruibing Li
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - David Mui
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sam Toan
- Department of Chemical Engineering, University of Minnesota-Duluth, Duluth, MN 55812, USA
| | - Xing Chang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Hao Zhou
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China.,Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
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20
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p53 in Proximal Tubules Mediates Chronic Kidney Problems after Cisplatin Treatment. Cells 2022; 11:cells11040712. [PMID: 35203361 PMCID: PMC8870044 DOI: 10.3390/cells11040712] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Nephrotoxicity is a major side-effect of cisplatin in chemotherapy, which can occur acutely or progress into chronic kidney disease (CKD). The protein p53 plays an important role in acute kidney injury induced by cisplatin, but its involvement in CKD following cisplatin exposure is unclear. Here, we address this question by using experimental models of repeated low-dose cisplatin (RLDC) treatment. In mouse proximal tubular BUMPT cells, RLDC treatment induced p53 activation, apoptosis, and fibrotic changes, which were suppressed by pifithrin-α, a pharmacologic inhibitor of p53. In vivo, chronic kidney problems following RLDC treatment were ameliorated in proximal tubule-specific p53-knockout mice (PT-p53-KO mice). Compared with wild-type littermates, PT-p53-KO mice showed less renal damage (KIM-1 positive area: 0.97% vs. 2.5%), less tubular degeneration (LTL positive area: 15.97% vs. 10.54%), and increased proliferation (Ki67 positive area: 2.42% vs. 0.45%), resulting in better renal function after RLDC treatment. Together, these results indicate that p53 in proximal tubular cells contributes significantly to the development of chronic kidney problems following cisplatin chemotherapy.
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21
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Çomaklı S, Kandemir FM, Küçükler S, Özdemir S. Morin mitigates ifosfamide induced nephrotoxicity by regulation of NF-kappaB/p53 and Bcl-2 expression. Biotech Histochem 2022; 97:423-432. [PMID: 35037524 DOI: 10.1080/10520295.2021.2021449] [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: 11/02/2022] Open
Abstract
Ifosfamide (IFO) is used for treating childhood solid tumors, but its use is limited by its adverse effects on kidneys. Morin may be used to prevent nephrotoxic and other side effects. We investigated the underlying mechanisms of the protective effects of morin on IFO induced nephrotoxicity. We used 35 male rats divided into five groups of seven: control group, morin group, IFO group, 100 mg/kg morin + IFO group and 200 mg/kg morin + IFO group. We measured kidney tissue oxidant, antioxidant and inflammatory parameters using ELISA, and apoptosis was evaluated using immunohistochemistry and real time PCR. Serum urea, creatinine and kidney injury molecule-1 (KIM-1) levels were increased by IFO treatment; elevated levels were decreased significantly by treatment with both 100 and 200 mg/kg morin. Morin treatment also decreased oxidative stress and lipid oxidation in IFO treated rats. The ameliorative effect of morin on inflammatory response was due to reduced levels of NF-κB and TNF-α. Morin also reduced NF-κB/p53 levels by increasing Bcl-2 expression in IFO treated kidneys. Morin may prevent IFO induced nephrotoxicity via the NF-κB/p53 and Bcl-2 signaling pathways.
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Affiliation(s)
- Selim Çomaklı
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Fatih Mehmet Kandemir
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Sefa Küçükler
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Selçuk Özdemir
- Department of Genetics, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
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22
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Alamandine alleviates hypertension and renal damage via oxidative-stress attenuation in Dahl rats. Cell Death Dis 2022; 8:22. [PMID: 35022384 PMCID: PMC8755846 DOI: 10.1038/s41420-022-00822-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/09/2021] [Accepted: 01/04/2022] [Indexed: 11/08/2022]
Abstract
Alamandine (Ala) is a novel member of the renin-angiotensin-system (RAS) family. The present study aimed to explore the effects of Ala on hypertension and renal damage of Dahl salt-sensitive (SS) rats high-salt diet-induced, and the mechanisms of Ala on renal-damage alleviation. Dahl rats were fed with high-salt diets to induce hypertension and renal damage in vivo, and HK-2 cells were treated with sodium chloride (NaCl) to induce renal injury in vitro. Ala administration alleviated the high-salt diet-induced hypertension, renal dysfunction, and renal fibrosis and apoptosis in Dahl SS rats. The HK-2 cells' damage, and the increases in the levels of cleaved (c)-caspase3, c-caspase8, and c-poly(ADP-ribose) polymerase (PARP) induced by NaCl were inhibited by Ala. Ala attenuated the NaCl-induced oxidative stress in the kidney and HK-2 cells. DETC, an inhibitor of SOD, reversed the inhibitory effect of Ala on the apoptosis of HK-2 cells induced by NaCl. The NaCl-induced increase in the PKC level was suppressed by Ala in HK-2 cells. Notably, PKC overexpression reversed the moderating effects of Ala on the NaCl-induced apoptosis of HK-2 cells. These results show that Ala alleviates high-salt diet-induced hypertension and renal dysfunction. Ala attenuates the renal damage via inhibiting the PKC/reactive oxygen species (ROS) signaling pathway, thereby suppressing the apoptosis in renal tubular cells.
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23
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Li C, Wang W, Xie SS, Ma WX, Fan QW, Chen Y, He Y, Wang JN, Yang Q, Li HD, Jin J, Liu MM, Meng XM, Wen JG. The Programmed Cell Death of Macrophages, Endothelial Cells, and Tubular Epithelial Cells in Sepsis-AKI. Front Med (Lausanne) 2021; 8:796724. [PMID: 34926535 PMCID: PMC8674574 DOI: 10.3389/fmed.2021.796724] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a systemic inflammatory response syndrome caused by infection, following with acute injury to multiple organs. Sepsis-induced acute kidney injury (AKI) is currently recognized as one of the most severe complications related to sepsis. The pathophysiology of sepsis-AKI involves multiple cell types, including macrophages, vascular endothelial cells (ECs) and renal tubular epithelial cells (TECs), etc. More significantly, programmed cell death including apoptosis, necroptosis and pyroptosis could be triggered by sepsis in these types of cells, which enhances AKI progress. Moreover, the cross-talk and connections between these cells and cell death are critical for better understanding the pathophysiological basis of sepsis-AKI. Mitochondria dysfunction and oxidative stress are traditionally considered as the leading triggers of programmed cell death. Recent findings also highlight that autophagy, mitochondria quality control and epigenetic modification, which interact with programmed cell death, participate in the damage process in sepsis-AKI. The insightful understanding of the programmed cell death in sepsis-AKI could facilitate the development of effective treatment, as well as preventive methods.
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Affiliation(s)
- Chao 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, China
| | - Wei Wang
- Anhui Province Key Laboratory of Genitourinary Diseases, Department of Urology and Institute of Urology, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Shuai-Shuai Xie
- 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, China
| | - Wen-Xian Ma
- 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, China
| | - Qian-Wen Fan
- 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, China
| | - Ying Chen
- 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, China
| | - Yuan He
- 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, China
| | - Jia-Nan Wang
- 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, China
| | - Qin Yang
- 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, China
| | - Hai-di 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, China
| | - Juan Jin
- Key Laboratory of Anti-inflammatory and Immunopharmacology (Ministry of Education), Department of Pharmacology, Anhui Medical University, Hefei, China
| | - Ming-Ming Liu
- 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, 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, China
| | - Jia-Gen Wen
- 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, China
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24
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Injectable gelatin/oxidized dextran hydrogel loaded with apocynin for skin tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 133:112604. [DOI: 10.1016/j.msec.2021.112604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/15/2021] [Accepted: 12/06/2021] [Indexed: 12/26/2022]
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25
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Ding Y, Zhou DY, Yu H, Zhu T, Guo F, He Y, Guo XL, Lin YJ, Liu YJ, Yu YS. Upregulation of lncRNA NONRATG019935.2 suppresses the p53-mediated apoptosis of renal tubular epithelial cells in septic acute kidney injury. Cell Death Dis 2021; 12:771. [PMID: 34719669 PMCID: PMC8558325 DOI: 10.1038/s41419-021-03953-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
Although increasing evidence has confirmed that the apoptosis of renal tubular epithelial cells (RTECs) is a crucial contributor to the onset and development of septic acute kidney injury (AKI), the pathological mechanism by which RTEC apoptosis is upregulated during septic AKI is not entirely clear. In this study, a rat model of septic AKI was induced by a cecal ligation puncture procedure or lipopolysaccharide (LPS) injection. Four differentially expressed long noncoding RNAs (DE-Lncs) in the rat model of septic AKI were determined using RNA-sequencing and verified by qRT-PCR. Among the four DE-Lncs, the expression level of lncRNA NONRATG019935.2 (9935) exhibited the most significant reduction in both septic AKI rats and LPS-treated NRK-52E cells (a rat RTEC line). The overexpression of 9935 suppressed cell apoptosis and p53 protein level in LPS-treated NRK-52E cells, and retarded septic AKI development in the rat model of septic AKI. Mechanistically, 9935 decreased the human antigen R (HuR)-mediated Tp53 mRNA stability by limiting the combination of HuR and the 3'UTR region of Tp53 mRNA in RTECs. The overexpression of HuR abrogated the inhibitory effect of pcDNA-9935 on the LPS-induced apoptosis of NRK-52E and rat primary RTECs. In conclusion, 9935 exerts its role in septic AKI by suppressing the p53-mediated apoptosis of RTECs, and this essential role of 9935 relies on its destructive effect on HuR-mediated Tp53 mRNA stability.
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Affiliation(s)
- Ying Ding
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China.
| | - Dao-Yang Zhou
- Department of Emergency, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Hong Yu
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Tao Zhu
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China
| | - Feng Guo
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yang He
- Department of Emergency, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Xiu-Liu Guo
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yong-Jun Lin
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yu-Jiao Liu
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China
| | - Yun-Song Yu
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
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26
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Jing X, Han J, Zhang J, Chen Y, Yuan J, Wang J, Neo S, Li S, Yu X, Wu J. Long non-coding RNA MEG3 promotes cisplatin-induced nephrotoxicity through regulating AKT/TSC/mTOR-mediated autophagy. Int J Biol Sci 2021; 17:3968-3980. [PMID: 34671212 PMCID: PMC8495387 DOI: 10.7150/ijbs.58910] [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: 02/23/2021] [Accepted: 09/08/2021] [Indexed: 12/11/2022] Open
Abstract
Cis-Diamminedichloroplatinum (II) (DDP)-induced nephrotoxicity (DDPIN) may cause irreversible renal injury associated with high morbidity and mortality. Current standard therapies have not achieved satisfactory clinical outcomes due to unclear molecular and cellular mechanisms. Therefore, exploring potential therapies on DDPIN represents an urgent medical need. Present study characterized the role of lncRNA maternally expressed gene 3 (lnc-MEG3) in the pathogenesis of DDPIN. In both in vitro and in murine models of DDP-induced nephrotoxicity, lnc-MEG3 exacerbated DDPIN by negatively regulating miRNA-126 subsequently causing a decreased AKT/TSC/mTOR-mediated autophagy. By silencing lnc-MEG3 or incorporating miRNA-126 mimetics, the proliferation and migration of DDP-treated cells were restored. In vivo, we identified Paeonol to alleviate DDPIN by the inhibition of lnc-MEG3. Taken together, lnc-MEG3 represents a novel therapeutic target for DDPIN and Paeonol may serve as a promising treatment by inhibiting lnc-MEG3 and its related signaling pathways.
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Affiliation(s)
- Xu Jing
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250000, China
| | - Jinming Han
- Department of Clinical Neuroscience, Karolinska Institutet, S-171 76, Sweden
| | - Junhao Zhang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yi Chen
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Juan Yuan
- Department of Cell and Molecular Biology, Karolinska Institutet, S-171 76, Sweden
| | - Jue Wang
- Key Laboratory, The Second Hospital of Shandong University, Jinan, 250000, China
| | - Shiyong Neo
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Shuijie Li
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, S-171 76, Sweden
| | - Xueyuan Yu
- Department of Nephrology, Qilu hospital of Shandong University, Jinan, China
| | - Jing Wu
- Department of Pharmacology, The Second Hospital of Shandong University, Jinan, 250000, China
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Guo C, Ye FX, Jian YH, Liu CH, Tu ZH, Yang DP. MicroRNA-214-5p aggravates sepsis-related acute kidney injury in mice. Drug Dev Res 2021; 83:339-350. [PMID: 34370322 DOI: 10.1002/ddr.21863] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) is a devastating comorbidity in sepsis and correlates with a very poor prognosis and increased mortality. Currently, we use lipopolysaccharide (LPS) to establish sepsis-related AKI and try to demonstrate the pathophysiological role of microRNA-214-5p (miR-214-5p) in this process. Mice were intravenously injected with the miR-214-5p agomir, antagomir or negative controls for three consecutive days and then received a single intraperitoneal injection of LPS (10 mg/kg) for 24 h to induce AKI. Besides, the Boston University mouse proximal tubular cell lines were stimulated with LPS (10 μg/ml) for 8 h to investigate the role of miR-214-5p in vitro. To inhibit adenosine monophosphate-activated protein kinase (AMPK), compound C (CpC) was used in vivo. For glucagon-like peptide-1 receptor (GLP-1R) silence, cells were transfected with the small interfering RNA against GLP-1R. miR-214-5p level was upregulated in LPS-treated kidneys and proximal tubular cell lines. The miR-214-5p antagomir reduced LPS-induced renal inflammation and oxidative stress, thereby preventing renal damage and dysfunction. In contrast, the miR-214-5p agomir aggravated LPS-induced inflammation, oxidative stress and AKI in vivo and in vitro. Mechanistically, we found that the miR-214-5p antagomir prevented septic AKI via activating AMPK and that CpC treatment completely abrogated its renoprotective effect in mice. Further detection showed that miR-214-5p directly bound to the 3'-untranslational region of GLP-1R to inhibit GLP-1R/AMPK axis. Our data identify miR-214-5p as a promising therapeutic candidate to treat sepsis-related AKI.
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Affiliation(s)
- Cheng Guo
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fang-Xiong Ye
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yong-Hong Jian
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chun-Hua Liu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhi-Hui Tu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ding-Ping Yang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
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28
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Wang WJ, Jiang X, Gao CC, Chen ZW. Salusin‑β participates in high glucose‑induced HK‑2 cell ferroptosis in a Nrf‑2‑dependent manner. Mol Med Rep 2021; 24:674. [PMID: 34296310 PMCID: PMC8335735 DOI: 10.3892/mmr.2021.12313] [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: 03/23/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022] Open
Abstract
Ferroptosis is critically involved in the pathophysiology of diabetic nephropathy (DN). As a bioactive peptide, salusin‑β is abundantly expressed in the kidneys. However, it is unclear whether salusin‑β participates in the pathologies of diabetic kidney damage by regulating ferroptosis. The present study found that high glucose (HG) treatment upregulated the protein expressions of salusin‑β in a dose‑ and time‑dependent manner. Genetic knockdown of salusin‑β retarded, whereas overexpression of salusin‑β aggravated, HG‑triggered iron overload, antioxidant capability reduction, massive reactive oxygen species production and lipid peroxidation in HK‑2 cells. Mechanistically, salusin‑β inactivated nuclear factor erythroid‑derived 2‑like 2 (Nrf‑2) signaling, thus contributing to HG‑induced ferroptosis‑related changes in HK‑2 cells. Notably, the protein expression of salusin‑β was upregulated by ferroptosis activators, such as erastin, RSL3, FIN56 and buthionine sulfoximine. Pretreatment with ferrostatin‑1 (a ferroptosis inhibitor) prevented the upregulated protein expression of salusin‑β in HK‑2 cells exposed to HG. Taken together, these results suggested that a positive feedback loop between salusin‑β and ferroptosis primes renal tubular cells for injury in diabetes.
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Affiliation(s)
- Wen-Juan Wang
- Department of Nephrology, Center of Blood Purification, The Second People's Hospital of Nantong, Nantong, Jiangsu 226002, P.R. China
| | - Xia Jiang
- Department of Nephrology, Center of Blood Purification, The Second People's Hospital of Nantong, Nantong, Jiangsu 226002, P.R. China
| | - Chang-Chun Gao
- Department of Nephrology, Center of Blood Purification, The Second People's Hospital of Nantong, Nantong, Jiangsu 226002, P.R. China
| | - Zhi-Wei Chen
- Department of Nephrology, Center of Blood Purification, The Second People's Hospital of Nantong, Nantong, Jiangsu 226002, P.R. China
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29
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Wang C, Chen Y, Cheng NT, Yang ZT, Tang HX, Xu M. MicroRNA-762 Modulates Lipopolysaccharide-induced Acute Lung Injury via SIRT7. Immunol Invest 2021; 51:1407-1422. [PMID: 34251977 DOI: 10.1080/08820139.2021.1951753] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background: Inflammation and oxidative stress contribute to the pathogenesis of lipopolysaccharide (LPS)-induced acute lung injury (ALI). MicroRNA-762 (miR-762) has been implicated in the progression of inflammation and oxidative stress; however, its role in ALI remains unclear. In this study, we aim to investigate the role and underlying mechanisms of miR-762 in LPS-induced ALI. Methods: Mice were intravenously injected with miR-762 antagomir, agomir or the negative controls for 3 consecutive days and then received a single intratracheal instillation of LPS (5 mg/kg) for 12 h to establish ALI model. Adenoviral vectors were used to knock down the endogenous SIRT7 expression. Results: An increased miR-762 expression was detected in LPS-treated lungs. miR-762 antagomir significantly reduced inflammation, oxidative stress and ALI in mice, while the mice with miR-762 agomir treatment exhibited a deleterious phenotype. Besides, we found that SIRT7 upregulation was essential for the pulmonoprotective effects of miR-762 antagomir, and that SIRT7 silence completely abolished the anti-inflammatory and anti-oxidant capacities of miR-762 antagomir. Conclusion: miR-762 is implicated in the pathogenesis of LPS-induced ALI via modulating inflammation and oxidative stress, which depends on its regulation of SIRT7 expression. It might be a valuable therapeutic target for the treatment of ALI.
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Affiliation(s)
- Cong Wang
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yun Chen
- Department of Thoracic Surgery, Xishui People's Hospital Affiliated to Hubei University of Science and Technology, Huanggang, Hubei, China
| | - Ni-Tao Cheng
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ze-Tian Yang
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - He-Xiao Tang
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ming Xu
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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30
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Li J, Chen J, Yang Y, Ding R, Wang M, Gu Z. Ginkgolide A attenuates sepsis-associated kidney damage via upregulating microRNA-25 with NADPH oxidase 4 as the target. Int Immunopharmacol 2021; 95:107514. [PMID: 33677255 DOI: 10.1016/j.intimp.2021.107514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 02/07/2023]
Abstract
The aim of the present study was to explore the effects of Ginkgolide A (GA) on renal function of mice with sepsis and whether GA could attenuate sepsis-associated inflammation and apoptosis in kidney via upregulating microRNA (miR)-25 with NADPH oxidase 4 (Nox4) as the target. Experiments were carried out on lipopolysaccharide (LPS)-treated mice and kidney tubular (NRK-52E) cells. GA significantly inhibited the increases of creatinine (Cr), blood urea nitrogen (BUN) and cystatin C (CysC) in the serum of LPS-treated mice. The increases of inflammatory factors including tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6 in the kidneys of LPS-treated mice or NRK-52E cells were inhibited by GA administration. The changes of cleaved-caspase 3, cleaved-caspase 8, Bax, Bcl2 in mouse kidney and NRK-52E cells treated by LPS were reversed by GA administration. The sepsis-induced decrease of miR-25 was enhanced by GA treatment. The LPS-induced increases of inflammatory factors and apoptosis in mouse kidney or NRK-52E cells were attenuated after miR-25 agomiR administration. The bioinformatics analysis and luciferase reporter assays showed that Nox4 was a direct target gene of miR-25. Treatment with miR-25 inhibited Nox4 expression, while Nox4 over-expression reversed the inhibiting effects of miR-25 agomiR on LPS-induced increases of inflammatory factors and apoptosis in NRK-52E cells. These results indicated that GA could improve sepsis-induced renal damage by attenuating renal inflammation and apoptosis via upregulating miR-25 with Nox4 as the target.
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Affiliation(s)
- Jianzhong Li
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Jian Chen
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Yucheng Yang
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Rui Ding
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Meili Wang
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Zhenhua Gu
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China.
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Zheng T, Tan Y, Qiu J, Xie Z, Hu X, Zhang J, Na N. Alternative polyadenylation trans-factor FIP1 exacerbates UUO/IRI-induced kidney injury and contributes to AKI-CKD transition via ROS-NLRP3 axis. Cell Death Dis 2021; 12:512. [PMID: 34011928 PMCID: PMC8134587 DOI: 10.1038/s41419-021-03751-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/20/2022]
Abstract
NLRP3, a decisive role in inflammation regulation, is obviously upregulated by oxidative stress in kidney injury. The NLRP3 upregulation leads to unsolved inflammation and other pathological effects, contributing to aggravation of kidney injury and even transition to chronic kidney disease (CKD). However, the mechanism for NLRP3 upregulation and further aggravation of kidney injury remains largely elusive. In this study, we found NLRP3 3'UTR was shortened in response to kidney injury in vivo and oxidative stress in vitro. Functionally, such NLRP3 3'UTR shortening upregulated NLRP3 expression and amplified inflammation, fibrogenesis, ROS production and apoptosis, depending on stabilizing NLRP3 mRNA. Mechanistically, FIP1 was found to bind to pPAS of NLRP3 mRNA via its arginine-rich domain and to induce NLRP3 3'UTR shortening. In addition, FIP1 was upregulated in CKD specimens and negatively associated with renal function of CKD patients. More importantly, we found FIP1 was upregulated by oxidative stress and required for oxidative stress-induced NLRP3 upregulation, inflammation activation, cell damage and apoptosis. Finally, we proved that FIP1 silencing attenuated the inflammation activation, fibrogenesis, ROS production and apoptosis induced by UUO or IRI. Taken together, our results demonstrated that oxidative stress-upregulated FIP1 amplified inflammation, fibrogenesis, ROS production and apoptosis via inducing 3'UTR shortening of NLRP3, highlighting the importance of crosstalk between oxidative stress and alternative polyadenylation in AKI-CKD transition, as well as the therapeutic potential of FIP1 in kidney injury treatment.
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Affiliation(s)
- Tong Zheng
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yuqin Tan
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Jiang Qiu
- Department of Organ Transplantation, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhenwei Xie
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao Hu
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jinhua Zhang
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ning Na
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
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Protective Effects of Hu-Lu-Ba-Wan () against Oxidative Stress in Testis of Diabetic Rats through PKCα/NAPDH Oxidase Signaling Pathway. Chin J Integr Med 2021; 27:432-439. [PMID: 33459971 DOI: 10.1007/s11655-021-2863-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To explore the protective effect and the underlying mechanism of Hu-Lu-Ba-Wan (, HLBW) on the testis of diabetic rats. METHODS Twenty-four male Wistar rats (160-180 g) were randomly divided into 3 groups according to a random number table, including a control group (n=8), diabetic group (n=8), and HLBW group (n=8). Diabetic rat model was established by high-fat-diet administration and single intravenous injection of streptozotocin (26 mg/kg). Then HLBW granule was administrated for 12 weeks. Fasting blood glucose and insulin levels as well as serum total testosterone level and testicular testosterone content were examined. Oxidative stress markers in both serum and testis were tested. Meanwhile, testicular morphology was observed under hematoxylin and eosin (HE) and the ultrastructure of Leydig cell was observed by electron microscope. The superoxide anion level was detected by DHE, and TUNEL-positive cells of testis was evaluated by TUNEL assay. The gene and protein expression of protein kinase C (PKCα), phosphorylated PKCα (P-PKCα) and P47phox in testicular tissues were determined by quantitative RT-PCR analysis and Western bolt analysis. RESULTS Compared with the diabetic group, HLBW treatment significantly reduced the fasting glucose levels and increased the levels of fasting insulin and testosterone in serum (P<0.01). HLBW administration also reduced the levels of reactive oxygen species (ROS) in plasma and alleviated the damage of oxidative stress in the testis of diabetic rats. Additionally, HLBW down-regulated the protein and mRNA levels of PKCα, P-PKCα and P47phox in testicular tissues. CONCLUSION HLBW may attenuate the oxidative stress in the testis of diabetic rats via PKCα /NAPDH oxidase signaling pathway.
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Wang H, Zhang M, Zhou H, Cao L, Zhou J, Chen Q, Zhang X. Salusin-β Mediates High Glucose-Induced Inflammation and Apoptosis in Retinal Capillary Endothelial Cells via a ROS-Dependent Pathway in Diabetic Retinopathy. Diabetes Metab Syndr Obes 2021; 14:2291-2308. [PMID: 34054302 PMCID: PMC8153208 DOI: 10.2147/dmso.s301157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is characterized by retinal vascular endothelial cell death and vascular inflammation, which are microvascular complications of diabetes mellitus (DM). Salusin-β, a newly identified peptide, is closely associated with hypertension, atherosclerosis and diabetic cardiomyopathy. However, the exact role of salusin-β in high glucose (HG)-induced retinal capillary endothelial cell (REC) inflammation and apoptosis remains unclear. PATIENTS AND METHODS A total of 60 patients with type 2 diabetes and 20 healthy controls were included in this study. Based on fundus fluorescein angiography findings, the diabetic patients were divided into three subgroups: diabetes without retinopathy (DWR), non-proliferative DR (NPDR) and proliferative DR (PDR). Serum salusin-β levels were measured by enzyme-linked immunosorbent assay. Human RECs (HRECs) were cultured in normal glucose (NG) and HG medium with or without salusin-β. Salusin-β expression was analysed by Western blotting and immunofluorescence staining. Expression of the pro-inflammatory cytokines MCP-1, IL-1β, TNF-α, and VCAM-1 was analysed by Western blotting. Reactive oxygen species (ROS) production was measured with 2',7'-dichlorofluorescein diacetate (DCFH-DA). Cell apoptosis rates were determined by flow cytometry. The levels of p38, JNK, p-p38, and p-JNK and the apoptosis-related proteins cleaved caspase-3, Bax, and cl2 were analysed by Western blotting. RESULTS Serum salusin-β levels were higher in diabetic patients than in healthy controls (p = 0.0027), especially in patients with NPDR and PDR (both p<0.01). HG upregulated salusin-β expression in HRECs in a time-dependent manner. Salusin-β exacerbated inflammation and apoptosis, upregulated intracellular ROS production in HG-induced HRECs, and activated ROS-dependent JNK and p38 MAPK signalling, while knockdown of salusin-β suppressed these effects. CONCLUSION Our findings indicate that salusin-β can promote inflammation and apoptosis via ROS-dependent JNK and p38 MAPK signalling in HG-induced HRECs and could be a therapeutic target for DR.
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Affiliation(s)
- Hao Wang
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Department of Ophthalmology, Fuling Center Hospital of Chongqing City, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Meng Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Hongli Zhou
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Lang Cao
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Jie Zhou
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Qinyun Chen
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
| | - Xuedong Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, People’s Republic of China
- Correspondence: Xuedong Zhang Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Chongqing, People’s Republic of China Email
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Sun HJ, Xiong SP, Cao X, Cao L, Zhu MY, Wu ZY, Bian JS. Polysulfide-mediated sulfhydration of SIRT1 prevents diabetic nephropathy by suppressing phosphorylation and acetylation of p65 NF-κB and STAT3. Redox Biol 2020; 38:101813. [PMID: 33279869 PMCID: PMC7718489 DOI: 10.1016/j.redox.2020.101813] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/10/2020] [Accepted: 11/21/2020] [Indexed: 12/12/2022] Open
Abstract
Diabetic kidney disease is known as a major cause of chronic kidney disease and end stage renal disease. Polysulfides, a class of chemical agents with a chain of sulfur atoms, are found to confer renal protective effects in acute kidney injury. However, whether a polysulfide donor, sodium tetrasulfide (Na2S4), confers protective effects against diabetic nephropathy remains unclear. Our results showed that Na2S4 treatment ameliorated renal dysfunctional and histological damage in diabetic kidneys through inhibiting the overproduction of inflammation cytokine and reactive oxygen species (ROS), as well as attenuating renal fibrosis and renal cell apoptosis. Additionally, the upregulated phosphorylation and acetylation levels of p65 nuclear factor κB (p65 NF-κB) and signal transducer and activator of transcription 3 (STAT3) in diabetic nephropathy were abrogated by Na2S4 in a sirtuin-1 (SIRT1)-dependent manner. In renal tubular epithelial cells, Na2S4 directly sulfhydrated SIRT1 at two conserved CXXC domains (Cys371/374; Cys395/398), then induced dephosphorylation and deacetylation of its targeted proteins including p65 NF-κB and STAT3, thereby reducing high glucose (HG)-caused oxidative stress, cell apoptosis, inflammation response and epithelial-to-mesenchymal transition (EMT) progression. Most importantly, inactivation of SIRT1 by a specific inhibitor EX-527, small interfering RNA (siRNA), a de-sulfhydration reagent dithiothreitol (DTT), or mutation of Cys371/374 and Cys395/398 sites at SIRT1 abolished the protective effects of Na2S4 on diabetic kidney insulting. These results reveal that polysulfides may attenuate diabetic renal lesions via inactivation of p65 NF-κB and STAT3 phosphorylation/acetylation through sulfhydrating SIRT1.
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Affiliation(s)
- Hai-Jian Sun
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Si-Ping Xiong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Xu Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Lei Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Meng-Yuan Zhu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Zhi-Yuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Jin-Song Bian
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China; Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore; National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu, 215000, China.
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Zhang M, Wang J, Li M. [Menthol enhances interleukin-13-induced synthesis and secretion of mucin 5AC in human bronchial epithelial cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:1432-1438. [PMID: 33118512 DOI: 10.12122/j.issn.1673-4254.2020.10.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of interleukin (IL) -13 combined with cold stimulation on synthesis and secretion of mucin (MUC) 5AC in human bronchial epithelial cell line 16HBE and explore the role of transient receptor potential 8 (TRPM8) and anti-apoptotic factor B-cell lymphoblast-2 (Bcl-2) in this process. METHODS 16HBE cells were stimulated with 10 ng/mL IL-13, 1 mmol/L menthol, or both (1 mmol/L menthol was added after 6 days of IL-13 stimulation), and the changes in the expression of MUC5AC, intracellular Ca2+ concentration and Bcl-2 expression were evaluated. The effects of ABT-263 (a Bcl-2 inhibitor) and BCTC (a TRPM8 ion channel inhibitor), alone or in combination, on MUC5AC expression in the cells were tested, and the changes in intracellular Ca2+ and Bcl-2 expression following BCTC treatment were observed. The cell viability was assessed using CCK-8 assay, the mRNA expressions of MUC5AC and Bcl-2 were detected with real-time quantitative PCR, the level of MUC5AC in the culture medium was measured with ELISA, and the intracellular Ca2+ fluorescence intensity was determined with flow cytometry. RESULTS The mRNA and protein expressions of MUC5AC increased significantly in 16HBE cells following stimulation with IL-13, menthol, and both (P < 0.05), and were the highest in the combined treatment group with its peak level occurred at 24 h (P < 0.01). The intracellular Ca2+ fluorescence intensity and Bcl-2 mRNA expression were also increased in 16HBE cells after the stimulations (P < 0.05), and the increments were the most obvious in the combined treatment group (P < 0.01). Treatment with BCTC significantly lowered intracellular Ca2+ fluorescence intensity and the expressions of Bcl-2 and MUC5AC mRNA and protein in the cells stimulated with menthol or with both IL-13 and menthol (P < 0.05), but caused no significant changes in IL-13-stimulated cells (P > 0.05). Treatment with ABT-263 significantly lowered the mRNA and protein expressions of MUC5AC in the cells stimulated with IL-13 and menthol either alone or in combination (P < 0.05). CONCLUSIONS Menthol combined with IL-13 produces a synergistic effect to promote the synthesis and secretion of MUC5AC in 16HBE cells possibly by activating TRPM8 receptor to upregulate the expression of Bcl-2.
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Affiliation(s)
- Mingyang Zhang
- Department of Respiratory Medicine, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Jing Wang
- Department of Respiratory Medicine, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Minchao Li
- Department of Respiratory Medicine, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
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Polysulfide and Hydrogen Sulfide Ameliorate Cisplatin-Induced Nephrotoxicity and Renal Inflammation through Persulfidating STAT3 and IKKβ. Int J Mol Sci 2020; 21:ijms21207805. [PMID: 33096924 PMCID: PMC7589167 DOI: 10.3390/ijms21207805] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/17/2020] [Accepted: 10/20/2020] [Indexed: 12/29/2022] Open
Abstract
Cisplatin, a widely used chemotherapy for the treatment of various tumors, is clinically limited due to its extensive nephrotoxicity. Inflammatory response in tubular cells is a driving force for cisplatin-induced nephrotoxicity. The plant-derived agents are widely used to relieve cisplatin-induced renal dysfunction in preclinical studies. Polysulfide and hydrogen sulfide (H2S) are ubiquitously expressed in garlic, and both of them are documented as potential agents for preventing and treating inflammatory disorders. This study was designed to determine whether polysulfide and H2S could attenuate cisplatin nephrotoxicity through suppression of inflammatory factors. In renal proximal tubular cells, we found that sodium tetrasulfide (Na2S4), a polysulfide donor, and sodium hydrosulfide (NaHS) and GYY4137, two H2S donors, ameliorated cisplatin-caused renal toxicity through suppression of the massive production of inflammatory cytokines, including tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), and cyclooxygenase-2 (COX-2). Mechanistically, the anti-inflammatory actions of Na2S4 and H2S may be mediated by persulfidation of signal transducer and activator of transcription 3 (STAT3) and inhibitor kappa B kinase β (IKKβ), followed by decreased phosphorylation of STAT3 and IKKβ. Moreover, the nuclear translocation of nuclear transcription factor kappa B (NF-κB), and phosphorylation and degradation of nuclear factor kappa B inhibitor protein alpha (IκBα) induced by cisplatin, were also mitigated by both polysulfide and H2S. In mice, after treatment with polysulfide and H2S donors, cisplatin-associated renal dysfunction was strikingly ameliorated, as evidenced by measurement of serum blood urea nitrogen (BUN) and creatinine levels, renal morphology, and the expression of renal inflammatory factors. Our present work suggests that polysulfide and H2S could afford protection against cisplatin nephrotoxicity, possibly via persulfidating STAT3 and IKKβ and inhibiting NF-κB-mediated inflammatory cascade. Our results might shed light on the potential benefits of garlic-derived polysulfide and H2S in chemotherapy-induced renal damage.
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Xu Q, Yan P, Duan XJ, Wu X, Chen XJ, Luo M, Peng JC, Feng LX, Liu J, Zhong HL, Cheng W, Zou QY, Duan SB. Human umbilical cord-derived mesenchymal stem cells and human cord blood mononuclear cells protect against cisplatin-induced acute kidney injury in rat models. Exp Ther Med 2020; 20:145. [PMID: 33093883 PMCID: PMC7571324 DOI: 10.3892/etm.2020.9274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/23/2020] [Indexed: 12/11/2022] Open
Abstract
Human umbilical cord-derived mesenchymal stem cells (hUCMSCs) are a promising tool to attenuate cisplatin (CP)-induced acute kidney injury (AKI). However, whether the transplantation of human cord blood mononuclear cells (hCBMNCs) exhibits similar protective effects and their potential underlying mechanisms of action remain unclear. The present study aimed to determine the protective effects of hUCMSCs and hCBMNCs transplantation therapies on an established CP-induced rat model and explore their underlying mechanisms of action. A total of 24 Sprague-Dawley rats, selected based on body weight, were randomly assigned into 4 groups: i) normal control; ii) model (CP); iii) hCBMNCs (CP + hCBMNCs); and iv) hUCMSCs (CP + hUCMSCs). hUCMSCs (2.0x106 cells) and hCBMNCs (2.0x106 cells) were injected into the femoral vein of rats 24 h after CP (8 mg/kg) treatment. To determine the effects of hCBMNCs and hUCMSCs on CP-induced rats, renal function assessment and histological evaluations were performed. Expression levels of high mobility group box 1 (HMGB1) and the ratio of Bax/Bcl2 in renal tissues were detected to elucidate their underlying molecular mechanisms of action. The results demonstrated that transplantation of hUCMSCs and hCBMNCs significantly improved renal function in CP-induced AKI rats, as evidenced by the enhancement of renal morphology; decreased concentrations of blood urea nitrogen and serum creatinine; and a lower percentage of apoptotic renal tubular cells. The expression of HMGB1 and the ratio of Bax/Bcl-2 were significantly reduced in the hUCMSCs and hCBMNCs groups compared with CP group. In conclusion, the present study indicated that hCBMNCs exert similar protective effects to hUCMSCs on CP-induced AKI. hUCMSCs and hCBMNCs protect against CP-induced AKI by suppressing HMGB1 expression and preventing cell apoptosis.
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Affiliation(s)
- Qian Xu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Ping Yan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Xiang-Jie Duan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Xi Wu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Xiao-Jun Chen
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Min Luo
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Jing-Cheng Peng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Li-Xin Feng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Jie Liu
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, P.R. China
| | - Hui-Lin Zhong
- Neuromedical Research Center, Guangdong 999 Brain Hospital, Guangzhou, Guangdong 510510, P.R. China
| | - Wei Cheng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
| | - Qing-Yan Zou
- Neuromedical Research Center, Guangdong 999 Brain Hospital, Guangzhou, Guangdong 510510, P.R. China
| | - Shao-Bin Duan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan 410011, P.R. China
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Ma X, Zhang J, Wu Z, Wang X. Chicoric acid attenuates hyperglycemia-induced endothelial dysfunction through AMPK-dependent inhibition of oxidative/nitrative stresses. J Recept Signal Transduct Res 2020; 41:378-392. [PMID: 32900249 DOI: 10.1080/10799893.2020.1817076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Endothelial dysfunction is a driving force during the development and progression of cardiovascular complications in diabetes. Targeting endothelial injury may be an attractive avenue for the management of diabetic vascular disorders. Chicoric acid is reported to confer antioxidant and anti-inflammatory properties in various diseases including diabetes. However, the role and mechanism of chicoric acid in hyperglycemia-induced endothelial damage are not well understood. METHODS In the present study, human umbilical vein endothelial cells (HUVECs) were incubated with high glucose/high fat (HG + HF) to induce endothelial cell injury. RESULTS We found that exposure of HUVECs to HG + HF medium promoted the release of cytochrome c (cytc) from mitochondrion into the cytoplasm, stimulated the cleavage of caspase-3 and poly ADP-ribose-polymerase (PARP), then inducing cell apoptosis, the effects that were prevented by administration of chicoric acid. Besides, we found that chicoric acid diminished HG + HF-induced phosphorylation and degradation of IκBα, and subsequent p65 NFκB nuclear translocation, thereby contributing to its anti-inflammatory effects in HUVECs. We also confirmed that chicoric acid mitigated oxidative/nitrative stresses under HG + HF conditions. Studies aimed at exploring the underlying mechanisms found that chicoric acid activated the AMP-activated protein kinase (AMPK) signaling pathway to attenuate HG + HF-triggered injury in HUVECs as AMPK inhibitor Compound C or silencing of AMPKα1 abolished the beneficial effects of chicoric acid in HUVECs. CONCLUSION Collectively, chicoric acid is likely protected against diabetes-induced endothelial dysfunction by activation of the AMPK signaling pathway. Chicoric acid could be a novel candidate for the treatment of the diabetes-associated vascular endothelial injury.
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Affiliation(s)
- Xiaojuan Ma
- School of Medical Laboratory, Sanquan College of Xinxiang Medical University, Xinxiang, China
| | - Junli Zhang
- School of Medical Laboratory, Sanquan College of Xinxiang Medical University, Xinxiang, China
| | - Zejie Wu
- School of Medical Laboratory, Sanquan College of Xinxiang Medical University, Xinxiang, China
| | - Xia Wang
- School of Medical Laboratory, Sanquan College of Xinxiang Medical University, Xinxiang, China
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