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Zhang Y, He X, Gu L, Li S, Tang J, Ma R, Yang H, Peng Z. Mefunidone ameliorates acute liver failure in mice by inhibiting MKK4-JNK pathway. Biochem Pharmacol 2024; 225:116267. [PMID: 38723721 DOI: 10.1016/j.bcp.2024.116267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/23/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
Acute liver failure (ALF) is a critical condition that can lead to substantial liver dysfunction. It is characterized by complex clinical manifestations and rapid progression, presenting significant challenges in diagnosis and treatment. We investigated the protective effect of mefunidone (MFD), a novel antifibrosis pyridone agent, on ALF in mice, and explored its potential mechanism of action. MFD pretreatment can alleviate lipopolysaccharide (LPS) and d-galactosamine (D-GalN)-induced ALF, reduce hepatocyte apoptosis, and reduce inflammation and oxidative stress. Additionally, MFD alleviated LPS/D-GalN-stimulated reactive oxygen species (ROS) production and cell death in AML12 cells. RNA sequencing enrichment analysis showed that MFD significantly affected the Mitogen-Activated Protein Kinase (MAPK) pathway. In vivo and in vitro experiments showed that MFD inhibited MKK4 and JNK phosphorylation. JNK activation caused by MKK4 and JNK activators could eliminate the therapeutic effect of MFD on AML12. In addition, MFD pretreatment alleviated ConA-induced ALF, reduced inflammation and oxidative stress in mice, and reduced mouse mortality. These results suggest that MFD can potentially protect against ALF, partially by inhibiting the MKK4-JNK pathway, and is a promising new therapeutic drug for ALF.
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Affiliation(s)
- Yanqiu Zhang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xin He
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Lei Gu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shenglan Li
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jie Tang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ruixue Ma
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Huixiang Yang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Zhangzhe Peng
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Lab of Organ Fibrosis, Changsha 410008, China; National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China.
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2
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Luo J, Zhou Y, Song Y, Wang D, Li M, Du X, Kang J, Ye P, Xia J. Association between the neutrophil-to-lymphocyte ratio and in-hospital mortality in patients with chronic kidney disease and coronary artery disease in the intensive care unit. Eur J Med Res 2024; 29:260. [PMID: 38689359 PMCID: PMC11059689 DOI: 10.1186/s40001-024-01850-3] [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: 01/05/2024] [Accepted: 04/18/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND The objective of this study was to investigate the correlation between neutrophil-to-lymphocyte ratios (NLR) and the risk of in-hospital death in patients admitted to the intensive care unit (ICU) with both chronic kidney disease (CKD) and coronary artery disease (CAD). METHODS Data from the MIMIC-IV database, which includes a vast collection of more than 50,000 ICU admissions occurring between 2008 and 2019, was utilized in the study and eICU-CRD was conducted for external verification. The Boruta algorithm was employed for feature selection. Univariable and multivariable logistic regression analyses and multivariate restricted cubic spline regression were employed to scrutinize the association between NLR and in-hospital mortality. The receiver operating characteristic (ROC) curves were conducted to estimate the predictive ability of NLR. RESULTS After carefully applying criteria to include and exclude participants, a total of 2254 patients with CKD and CAD were included in the research. The findings showed a median NLR of 7.3 (4.4, 12.1). The outcomes of multivariable logistic regression demonstrated that NLR significantly elevated the risk of in-hospital mortality (OR 2.122, 95% confidence interval [CI] 1.542-2.921, P < 0.001) after accounting for all relevant factors. Further insights from subgroup analyses unveiled that age and Sequential Organ Failure Assessment (SOFA) scores displayed an interactive effect in the correlation between NLR and in-hospital deaths. The NLR combined with traditional cardiovascular risk factors showed relatively great predictive value for in-hospital mortality (AUC 0.750). CONCLUSION The findings of this research indicate that the NLR can be used as an indicator for predicting the likelihood of death during a patient's stay in the intensive care unit, particularly for individuals with both CAD and CKD. The results indicate that NLR may serve as a valuable tool for assessing and managing risks in this group at high risk. Further investigation is required to authenticate these findings and investigate the mechanisms that underlie the correlation between NLR and mortality in individuals with CAD and CKD.
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Affiliation(s)
- Jingjing Luo
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yufan Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yu Song
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Dashuai Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Henan Province, 450052, China
| | - Meihong Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100038, China
| | - Xinling Du
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Jihong Kang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100038, China.
| | - Ping Ye
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Yao TT, Zhang Y, He RL, Lv X, He YJ, Li MY, Han YY, Long LZ, Jiang GL, Cheng XY, Hu GY, Li QB, Tao LJ, Meng J. Mefunidone ameliorates lipopolysaccharide-induced acute lung injury through inhibiting MAPK signaling pathway and enhancing Nrf2 pathway. Int Immunopharmacol 2022; 113:109263. [PMID: 36334370 DOI: 10.1016/j.intimp.2022.109263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/31/2022] [Accepted: 09/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE Acute lung injury (ALI) is a life-threatening disease which has high mortality and lacks effective pharmacological treatments. Excessive inflammation and oxidative stress are the key pathogenesis of ALI. Mefunidone (MFD), a novel small molecule compound, displayed anti-inflammation and anti-oxidative stress effects on streptozocin (STZ) and db/db mice in our previous studies. In this study, we aimed to investigate the effects of MFD on lipopolysaccharide (LPS)-induced ALI and explore the potential molecular mechanisms. METHODS We investigated the effects of MFD on LPS-induced ALI mouse model and LPS-stimulated immortalized mouse bone marrow-derived macrophages (iBMDMs). RESULTS MFD could alleviate pulmonary structure disorder and attenuate pulmonary neutrophils infiltration induced by LPS. MFD could also decreased proinflammatory cytokines release and reduce reactive oxygen species (ROS) generation stimulated by LPS. Further, MFD could significantly reduce LPS-induced phosphorylation levels of mitogen-activated protein kinase (MAPK), increase expression of nuclear factor-erythroid 2 related factor 2 (Nrf2) and restore the expressions of antioxidant enzymes. CONCLUSION Our results firstly supported that MFD effectively protected LPS-induced ALI against inflammation and oxidative stress through inhibiting MAPK signaling pathway and activating Nrf2 pathway.
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Affiliation(s)
- Ting-Ting Yao
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Yan Zhang
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Rong-Ling He
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Xin Lv
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Yi-Jun He
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Meng-Yu Li
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Yuan-Yuan Han
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Ling-Zhi Long
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China
| | - Guo-Liang Jiang
- Department of Pulmonary and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Xiao-Yun Cheng
- Department of Pulmonary and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Gao-Yun Hu
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Qian-Bin Li
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Li-Jian Tao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Organ Fibrosis, Changsha, China; National International Collaborative Research Center for Medical Metabolomics, Changsha, China
| | - Jie Meng
- Department of Pulmonary and Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Organ Fibrosis, Changsha, China; National International Collaborative Research Center for Medical Metabolomics, Changsha, China.
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Li J, Jiang Y, Dai Q, Yu Y, Lv X, Zhang Y, Liao X, Ao L, Hu G, Meng J, Peng Z, Tao L, Xie Y. Protective effects of mefunidone on ischemia-reperfusion injury/Folic acid-induced acute kidney injury. Front Pharmacol 2022; 13:1043945. [PMID: 36506525 PMCID: PMC9727196 DOI: 10.3389/fphar.2022.1043945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/07/2022] [Indexed: 11/24/2022] Open
Abstract
Renal ischemia-reperfusion injury (IRI) is one of the most common causes of acute kidney injury (AKI). It poses a significant threat to public health, and effective therapeutic drugs are lacking. Mefunidone (MFD) is a new pyridinone drug that exerts a significant protective effect on diabetic nephropathy and the unilateral ureteral obstruction (UUO) model in our previous study. However, the effects of mefunidone on ischemia-reperfusion injury-induced acute kidney injury remain unknown. In this study, we investigated the protective effect of mefunidone against ischemia-reperfusion injury-induced acute kidney injury and explored the underlying mechanism. These results revealed that mefunidone exerted a protective effect against ischemia-reperfusion injury-induced acute kidney injury. In an ischemia-reperfusion injury-induced acute kidney injury model, treatment with mefunidone significantly protected the kidney by relieving kidney tubular injury, suppressing oxidative stress, and inhibiting kidney tubular epithelial cell apoptosis. Furthermore, we found that mefunidone reduced mitochondrial damage, regulated mitochondrial-related Bax/bcl2/cleaved-caspase3 apoptotic protein expression, and protected mitochondrial electron transport chain complexes III and V levels both in vivo and in vitro, along with a protective effect on mitochondrial membrane potential in vitro. Given that folic acid (FA)-induced acute kidney injury is a classic model, we used this model to further validate the efficacy of mefunidone in acute kidney injury and obtained the same conclusion. Based on the above results, we conclude that mefunidone has potential protective and therapeutic effects in both ischemia-reperfusion injury- and folic acid-induced acute kidney injury.
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Affiliation(s)
- Jiajia Li
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China,Hunan Key Lab of Organ Fibrosis, Changsha, China,National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, China
| | - Yupeng Jiang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China,Hunan Key Lab of Organ Fibrosis, Changsha, China,National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, China,Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Qin Dai
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Yue Yu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Xin Lv
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Zhang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaohua Liao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Liyun Ao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - Gaoyun Hu
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jie Meng
- Hunan Key Lab of Organ Fibrosis, Changsha, China,Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhangzhe Peng
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China,Hunan Key Lab of Organ Fibrosis, Changsha, China,National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, China
| | - Lijian Tao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China,Hunan Key Lab of Organ Fibrosis, Changsha, China,National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, China
| | - Yanyun Xie
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China,Hunan Key Lab of Organ Fibrosis, Changsha, China,National International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, China,*Correspondence: Yanyun Xie,
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5
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Palacios-Ramirez R, Lima-Posada I, Bonnard B, Genty M, Fernandez-Celis A, Hartleib-Geschwindner J, Foufelle F, Lopez-Andres N, Bamberg K, Jaisser F. Mineralocorticoid Receptor Antagonism Prevents the Synergistic Effect of Metabolic Challenge and Chronic Kidney Disease on Renal Fibrosis and Inflammation in Mice. Front Physiol 2022; 13:859812. [PMID: 35464084 PMCID: PMC9022039 DOI: 10.3389/fphys.2022.859812] [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: 01/21/2022] [Accepted: 03/21/2022] [Indexed: 01/09/2023] Open
Abstract
Obesity and/or metabolic diseases are frequently associated with chronic kidney disease and several factors associated with obesity may contribute to proteinuria and extracellular matrix production. Mineralocorticoid receptor antagonists have proven their clinical efficacy in diabetic kidney disease with preclinical data suggesting that they may also be efficient in non-diabetic chronic kidney disease associated to metabolic diseases. In the present study we developed a novel mouse model combining severe nephron reduction and High Fat Diet challenge that led to chronic kidney disease with metabolic alterations. We showed that the Mineralocorticoid Receptor antagonist canrenoate improved metabolic function, reduced albuminuria and prevented the synergistic effect of high fat diet on renal fibrosis and inflammation in chronic kidney disease mice.
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Affiliation(s)
- Roberto Palacios-Ramirez
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
| | - Ixchel Lima-Posada
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
| | - Benjamin Bonnard
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
| | - Marie Genty
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
| | - Amaya Fernandez-Celis
- Cardiovascular Translational Research, Navarrabiomed (Miguel Servet Foundation), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Judith Hartleib-Geschwindner
- Research and Early Development, Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Fabienne Foufelle
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
| | - Natalia Lopez-Andres
- Cardiovascular Translational Research, Navarrabiomed (Miguel Servet Foundation), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Krister Bamberg
- Research and Early Development, Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Frederic Jaisser
- Centre de Recherche des Cordeliers, Team Diabetes, Metabolic Diseases and Comorbidities, Sorbonne Université, Inserm, Université de Paris, Paris, France
- Université de Lorraine, INSERM Centre D’Investigations Cliniques-Plurithématique 1433, UMR 1116, CHRU de Nancy, French-Clinical Research Infrastructure Network (F-CRIN) INI-CRCT, Nancy, France
- *Correspondence: Frederic Jaisser,
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Han Y, Jiang M, He R, Lv X, Liao X, He Y, Zhang F, Long L, Jiang G, Peng Z, Tao L, Hu G, Meng J. Mefunidone Ameliorates Bleomycin-Induced Pulmonary Fibrosis in Mice. Front Pharmacol 2021; 12:713572. [PMID: 34630088 PMCID: PMC8499630 DOI: 10.3389/fphar.2021.713572] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is one of the most common and devastating interstitial lung diseases with poor prognosis. Currently, few effective drugs are available for IPF. Hence, we sought to explore the role of mefunidone (MFD), a newly synthesized drug developed by our team, in lung fibrosis. In this study, MFD was found to attenuate bleomycin (BLM) -induced lung fibrosis and inflammation in mice according to Ashcroft and alveolitis scoring. The protein contents and total cell counts in bronchoalveolar lavage fluids of BLM-treated mice were also lowered by MFD. Moreover, the elevation of TGF-β/Smad2 and phosphorylation of MAPK pathways was repressed by MFD. Additionally, MFD attenuated the swelling and vacuolization of mitochondria, lowered the ratio of apoptotic cells, restored the mitochondrial membrane potential, and reversed the expression of cleaved-caspase 3, Bcl-2 and Bax. Meanwhile, the level of epithelial marker, E-cadherin, was restored by MFD, while the levels of mesenchymal markers such as Snail and vimentin were down-regulated by MFD. Besides, MFD inhibited the expression of fibronectin and α-smooth muscle actin in TGF-β treated normal human lung fibroblasts. Thus, our findings suggested that MFD could ameliorate lung fibrosis, cell apoptosis and EMT potentially via suppression of TGF-β/Smad2 and MAPK pathways.
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Affiliation(s)
- Yuanyuan Han
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China.,Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Mao Jiang
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Rongling He
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Xin Lv
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China.,Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Xiaohua Liao
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China.,Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Yijun He
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Fan Zhang
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, China
| | - Lingzhi Long
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Guoliang Jiang
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Zhangzhe Peng
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China.,Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Lijian Tao
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China.,Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Gaoyun Hu
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jie Meng
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Organ Fibrosis, Changsha, China
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7
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Tu S, Jiang Y, Cheng H, Yuan X, He Y, Peng Y, Peng X, Peng Z, Tao L, Yang H. Fluorofenidone protects liver against inflammation and fibrosis by blocking the activation of NF-κB pathway. FASEB J 2021; 35:e21497. [PMID: 34152015 DOI: 10.1096/fj.202002402r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/04/2021] [Accepted: 02/17/2021] [Indexed: 01/18/2023]
Abstract
Despite the increasing understanding of the pathophysiology of hepatic fibrosis, the therapies to combat it remain inadequate. Fluorofenidone (AKF-PD) is a novel pyridone agent able to ameliorate hepatic fibrosis in an experimental hepatic fibrosis model induced by dimethylnitrosamine. However, the underlying mechanism remains to be further elucidated. In light of the critical role of the NF-κB pathway in inflammation and hepatic fibrosis, together with the preliminary finding that AKF-PD decreases the release of proinflammatory cytokines in the endotoxemia and unilateral ureteral occlusion model, the aim of this study was to explore whether AKF-PD exerts an antifibrotic effect in hepatic fibrosis by inhibiting inflammation and suppressing the activation of the NF-κB pathway in vivo and in vitro. To test this possibility, the effect of AKF-PD on hepatic fibrosis models induced by both carbon tetrachloride (CCL4 ) and porcine serum (PS) was investigated. Our results showed that AKF-PD treatment ameliorated hepatic injury and fibrosis in both models. Furthermore, the administration of AKF-PD induced a robust anti-inflammatory reaction revealed by the downregulation of the proinflammatory cytokines as well as the suppression of the infiltration of inflammatory cells in the fibrotic liver. The analysis of the mechanism of action demonstrated that the attenuation of the production of proinflammatory cytokines and chemokines mediated by AKF-PD in vivo and in vitro were accompanied by the suppression in the activation of the NF-κB signaling pathway. In conclusion, AKF-PD might be considered as an antifibrotic agent attenuating hepatic inflammation and fibrosis potentially through the suppression of the NF-κB pathway.
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Affiliation(s)
- Sha Tu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, P.R. China
| | - Yanzhi Jiang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Haihua Cheng
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiangning Yuan
- Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, P.R. China
| | - Ying He
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Yu Peng
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiongqun Peng
- Department of Gastroenterology, Changsha Central Hospital, Changsha, P.R. China
| | - Zhangzhe Peng
- Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, P.R. China.,Department of Nephrology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Lijian Tao
- Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, P.R. China.,Department of Nephrology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Huixiang Yang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, P.R. China
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8
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Chen ZN, Huang YR, Chen X, Liu K, Li SJ, Yang H, Chen W, Ren BQ, Luo ZH. Value of neutrophil-to-lymphocyte ratio as a marker of renal damage in patients with H-type hypertension. Biomark Med 2021; 15:637-646. [PMID: 34039027 DOI: 10.2217/bmm-2020-0638] [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: 11/21/2022] Open
Abstract
Aim: To explore the relationship between the neutrophil-to-lymphocyte ratio (NLR) and renal damage in patients with H-type hypertension. Materials & methods: A total of 618 patients between 2017 and 2019 were analyzed retrospectively. Results: NLR was significantly correlated with renal damage in hypertension patients. Appropriate cut-off value for NLR (2.247) was determined by receiver operating characteristic curve; linear regression analysis showed that NLR and estimated glomerular filtration rate, blood urea nitrogen/creatinine has a significant negative correlation in H-type hypertension group (p < 0.05); logistic regression analysis showed that the risk of renal damage increased by 10% for each 1 umol/l increase of homocysteine, and 51% for each 1.0 increase of NLR in H-type hypertension patients. Conclusion: NLR worth popularizing in prediction of renal damage in patients with H-type hypertension.
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Affiliation(s)
- Zhen-Ni Chen
- Department of Clinical Laboratory, TEDA International Cardiovascular Hospital, Cardiovascular Clinical College of Tianjin Medical University, Tianjin, China
| | - Yi-Ran Huang
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
| | - Xing Chen
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Laboratory Medicine, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Kun Liu
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Medical Administration, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Si-Jin Li
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Laboratory Medicine, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Huan Yang
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Laboratory Medicine, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Wei Chen
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Laboratory Medicine, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Bi-Qiong Ren
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Laboratory Medicine, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
| | - Zhi-Hong Luo
- Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China.,Department of Medical Administration, Hunan Provincial Second People's Hospital, Changsha, Hunan, China
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9
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Jiang Y, Xie F, Lv X, Wang S, Liao X, Yu Y, Dai Q, Zhang Y, Meng J, Hu G, Peng Z, Tao L. Mefunidone ameliorates diabetic kidney disease in STZ and db/db mice. FASEB J 2020; 35:e21198. [PMID: 33225469 DOI: 10.1096/fj.202001138rr] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/11/2022]
Abstract
Diabetic kidney disease (DKD) is a major cause of end stage renal diseases worldwide. Despite successive interventions for delaying the progression of DKD, current treatments cannot reverse the pathological progression. Mefunidone (MFD) is a new compound with potent antifibrotic properties, but the effect of MFD on DKD remains unknown. Therefore, we investigated the protective effects of MFD in both models of the db/db type 2 diabetes (T2D) and streptozotocin (STZ)-induced type 1 diabetes (T1D) models. Compared with the model group, MFD treatment significantly reduced pathological changes observed by PAS staining, PASM staining, and Masson staining in vivo. To further elucidate the potential mechanisms, we discovered MFD treatment notably restored podocyte function, alleviated inflammation, abated ROS generation, inhibited the TGF-β1/SAMD2/3 pathway, suppressed the phosphorylation levels of MAPKs (ERK1/2, JNK, and P38), and reduced epithelial-to-mesenchymal transition(EMT). In conclusion, these findings demonstrate the effectiveness of MFD in diabetic nephropathy and elucidate its possible mechanism.
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Affiliation(s)
- Yupeng Jiang
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Feifei Xie
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Xin Lv
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Shuting Wang
- Department of Oncology, Xiangya Hospital of Central South University, Changsha, China
| | - Xiaohua Liao
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Yue Yu
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Qin Dai
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Yan Zhang
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Jie Meng
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Gaoyun Hu
- Faculty of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Zhangzhe Peng
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
| | - Lijian Tao
- Department of Nephrology, Xiangya Hospital of Central South University, Changsha, China
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10
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Kaeidi A, Taghipour Z, Allahtavakoli M, Fatemi I, Hakimizadeh E, Hassanshahi J. Ameliorating effect of troxerutin in unilateral ureteral obstruction induced renal oxidative stress, inflammation, and apoptosis in male rats. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:879-888. [PMID: 31900517 DOI: 10.1007/s00210-019-01801-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/19/2019] [Indexed: 01/08/2023]
Abstract
Unilateral ureteral obstruction (UUO) induces renal injury and troxerutin attenuates the inflammatory parameters and decreases oxidative stress. Accordingly, this study explored the renoprotective effect of troxerutin in UUO-induced renal oxidative stress, inflammation, and apoptosis in male Wistar rats. Animals were randomly separated into five groups (n = 8): control, UUO, and three UUO groups treated with troxerutin (1, 10, and 100 mg/kg). UUO-induced and vehicle/troxerutin administration was continued for 3 days. Then serum creatinine, mean arterial pressure (MAP), renal perfusion pressure (RPP), renal vascular resistance (RVR), and renal blood flow (RBF) were measured. Superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase activities, total antioxidant capacity (TAC), and malondialdehyde (MDA) levels as some oxidative stress parameters were measured in the left kidney. The immunoblotting method was applied to evaluate the cleaved caspase-3 Bax, Bcl-2, and TNF-α proteins level. The hematoxylin and eosin method was used to assess the kidney tissue damage score (KTDS). In 3 days, UUO significantly increased serum creatinine level, KTDS, RVR, MDA, Bax, cleaved caspase-3, and TNF-α protein levels (p < 0.05); and decreased RBF, TAC, SOD, catalase, GPx activity levels and Bcl-2 protein expression level in the left kidney (p < 0.05). Troxerutin (100 mg/kg) significantly attenuates the indicators alteration induced by UUO. Our findings represented that the renoprotective effect of troxerutin may be related to its anti-oxidative stress, anti-inflammation, anti-apoptosis, and RBF improver properties.
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Affiliation(s)
- Ayat Kaeidi
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, 77175-835, Rafsanjan, 7719617996, Iran.,Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Zahra Taghipour
- Department of Anatomy, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Mohammad Allahtavakoli
- Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Iman Fatemi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Hakimizadeh
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, 77175-835, Rafsanjan, 7719617996, Iran
| | - Jalal Hassanshahi
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, 77175-835, Rafsanjan, 7719617996, Iran. .,Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
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11
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Kaeidi A, Sahamsizadeh A, Allahtavakoli M, Fatemi I, Rahmani M, Hakimizadeh E, Hassanshahi J. The effect of oleuropein on unilateral ureteral obstruction induced-kidney injury in rats: the role of oxidative stress, inflammation and apoptosis. Mol Biol Rep 2019; 47:1371-1379. [PMID: 31873871 DOI: 10.1007/s11033-019-05237-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/10/2019] [Indexed: 12/19/2022]
Abstract
Unilateral ureteral obstruction (UUO) induces kidney injury. Oleuropein as a major compound of olive leaves modulates the inflammatory parameters and decreases oxidative stress. Accordingly, we evaluate the renoprotective effect of oleuropein against 3-day UUO rats. Forty rats were randomly divided into five groups (n = 8) including control, UUO and UUO + oleuropein groups (50, 100 and 200 mg/kg). UUO model was induced by left ureter ligation and continued for 3-day. Rats were treated synchronic daily for 3-day, then mean arterial pressure (MAP), renal perfusion pressure (RPP), renal blood flow (RBF), serum creatinine level, and also superoxide dismutase (SOD), glutathione peroxidase (GPx) activity levels and malondialdehyde (MDA) concentration (in the obstructed kidney) were measured. The western blotting method was applied to evaluate the Bax, Bcl-2, cleaved caspase-3 and TNF-α proteins expression level. The hematoxylin and eosin method was applied to evaluate the kidney tissue damage score (KTDS). UUO significantly increased RVR, KTDS, and MDA, cleaved caspase-3, Bax, serum creatinine and TNF-α protein levels (P < 0.05), and also significantly decreased RBF, SOD, and GPx and Bcl-2 protein expression levels (P < 0.001) in the obstructed kidney and oleuropein (200 mg/kg) significantly ameliorated the changes induced by UUO. Our findings showed that oleuropein has a renoprotective effect against 3-day UUO. The mechanisms underlying the observed effects may be related to its antioxidative stress, anti-apoptotic, and anti-inflammatory effects.
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Affiliation(s)
- Ayat Kaeidi
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.,Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, P.O. Box:77175-835, 7719617996, Rafsanjan, Iran
| | - Ali Sahamsizadeh
- Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, P.O. Box:77175-835, 7719617996, Rafsanjan, Iran
| | - Mohammad Allahtavakoli
- Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, P.O. Box:77175-835, 7719617996, Rafsanjan, Iran
| | - Iman Fatemi
- Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, P.O. Box:77175-835, 7719617996, Rafsanjan, Iran
| | - Mohammadreza Rahmani
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Elham Hakimizadeh
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Jalal Hassanshahi
- Department of Physiology and Pharmacology, Rafsanjan University of Medical Sciences, Khalije Fars Blvd., Pistachio Co. Street, P.O. Box:77175-835, 7719617996, Rafsanjan, Iran.
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12
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Gasparitsch M, Schieber A, Schaubeck T, Keller U, Cattaruzza M, Lange-Sperandio B. Tyrphostin AG490 reduces inflammation and fibrosis in neonatal obstructive nephropathy. PLoS One 2019; 14:e0226675. [PMID: 31846485 PMCID: PMC6917291 DOI: 10.1371/journal.pone.0226675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 12/03/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Congenital obstructive nephropathy is the main cause of end-stage renal disease in infants and children. Renal insufficiency is due to impaired growth and maturation in the developing kidney with obstruction. Congenital obstructive nephropathy leads to cytokine mediated inflammation and the development of interstitial fibrosis. The Janus kinase-2 (JAK-2) and Signal Transducer and Activator of Transcription'-3 (STAT3) are involved in cytokine production, inflammation, and interstitial fibrosis. METHODS We studied the role of JAK2/STAT3 in a model of congenital obstructive nephropathy using unilateral ureteral obstruction (UUO) in neonatal mice at the second day of life. Cytokine production, inflammation, and interstitial fibrosis were analyzed in obstructed and sham operated kidneys of neonatal mice treated with or without JAK2/STAT3 inhibitor Tyrphostin AG490. To mimic obstruction and distension, proximal tubular cells were stretched in vitro. RESULTS We show that STAT3 is highly activated in the developing kidney with obstruction and in proximal tubular cells following stretch. JAK2/STAT3 activation mediates cytokine release and leukocyte recruitment into neonatal kidneys after UUO. Pharmacological blockade of JAK2/STAT3 by Tyrphostin AG490 reduced inflammation, tubular apoptosis, and interstitial fibrosis. JAK2/STAT3 blockade decreased pro-inflammatory and profibrotic mediators in tubular cells. CONCLUSION Our findings provide evidence that JAK2/STAT3 mediates inflammation and fibrosis in the developing kidney with obstruction. Blocking JAK2/STAT3 may prove beneficial in congenital obstructive nephropathy in children.
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Affiliation(s)
- Mojca Gasparitsch
- Dr. v. Hauner Children’s Hospital, Division of Pediatric Nephrology, Ludwig-Maximilians-University, Munich, Germany
| | - Alexandra Schieber
- Dr. v. Hauner Children’s Hospital, Division of Pediatric Nephrology, Ludwig-Maximilians-University, Munich, Germany
| | - Teresa Schaubeck
- Dr. v. Hauner Children’s Hospital, Division of Pediatric Nephrology, Ludwig-Maximilians-University, Munich, Germany
| | - Ursula Keller
- Dr. v. Hauner Children’s Hospital, Division of Pediatric Nephrology, Ludwig-Maximilians-University, Munich, Germany
| | - Marco Cattaruzza
- Department of Physiology, Ruprecht-Karls-University, Heidelberg, Germany
| | - Bärbel Lange-Sperandio
- Dr. v. Hauner Children’s Hospital, Division of Pediatric Nephrology, Ludwig-Maximilians-University, Munich, Germany
- * E-mail:
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13
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Chen CM, Chou HC. Maternal inflammation exacerbates neonatal hyperoxia-induced kidney injury in rat offspring. Pediatr Res 2019; 86:174-180. [PMID: 31086293 DOI: 10.1038/s41390-019-0413-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 03/19/2019] [Accepted: 04/24/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Preclinical studies have demonstrated that maternal inflammation or neonatal hyperoxia adversely affects kidney maturation. This study explored whether prenatal lipopolysaccharide (LPS) exposure can augment neonatal hyperoxia-induced kidney injury. METHODS Pregnant Sprague-Dawley rats received intraperitoneal injections of LPS (0.5 mg/kg) in normal saline (NS) or NS on 20 and 21 days of gestation. The pups were reared in room air (RA) or 2 weeks of 85% O2, creating the four study groups, NS + RA, NS + O2, LPS + RA, and LPS + O2. Kidneys were taken for oxidase stress and histological analyses. RESULTS The rats exposed to maternal LPS or neonatal hyperoxia exhibited significantly higher kidney injury score, lower glomerular number, higher toll-like receptor 4 (TLR4), myeloperoxidase (MPO), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) expressions, and higher MPO activity compared with the rats exposed to maternal NS and neonatal RA. The rats exposed to both maternal LPS and neonatal hyperoxia exhibited significantly lower glomerular number, higher kidney injury score, TLR4, MPO, and 8-OHdG expressions compared with the rats exposed to maternal LPS or neonatal hyperoxia. CONCLUSION Maternal inflammation exacerbates neonatal hyperoxia-induced kidney injury and the underlying mechanism may be related to activation of TLR4 and increased oxidative stress.
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Affiliation(s)
- Chung-Ming Chen
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan. .,Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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14
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Han X, Li F, Wen Z, Ma Y, Wang L, Cheng Z. Pharmacokinetics, tissue distribution, plasma protein binding, and metabolism study of mefunidone, a novel pirfenidone derivative. Clin Exp Pharmacol Physiol 2019; 46:465-474. [DOI: 10.1111/1440-1681.13078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 02/11/2019] [Accepted: 02/24/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Xuhua Han
- School of Pharmaceutical Sciences Central South University Changsha Hunan China
| | - Fang Li
- School of Pharmaceutical Sciences Central South University Changsha Hunan China
| | - Zhou Wen
- School of Pharmaceutical Sciences Central South University Changsha Hunan China
- HunanHuize Bio‐pharmaceutical Co., Ltd Changsha Hunan China
| | - Yuehui Ma
- Hunan Taixin Pharmaceutical Technology Co., Ltd Changsha Hunan China
| | - Lei Wang
- School of Pharmaceutical Sciences Central South University Changsha Hunan China
- School of Life Sciences Central South University Changsha Hunan China
| | - Zeneng Cheng
- School of Pharmaceutical Sciences Central South University Changsha Hunan China
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15
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Han X, Wen Z, Fan Z, Ma Y, Wang L, Cheng Z. LC-MS/MS assay for the determination of a novel anti-fibrotic candidate mefunidone in monkey plasma and its application to a pharmacokinetics study. Drug Test Anal 2019; 11:1057-1064. [PMID: 30869197 DOI: 10.1002/dta.2588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 02/26/2019] [Accepted: 03/06/2019] [Indexed: 11/07/2022]
Abstract
Mefunidone (MFD) is a promising anti-fibrotic candidate molecule with greater anti-fibrotic activity than pirfenidone (PFD). However, there has been no report on the methodology used for the quantification of MFD or on any investigation of its pharmacokinetics. In this study, an efficient and reliable liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to assay MFD in monkey plasma. This assay method was validated and applied to a pharmacokinetics study in monkeys. The lower limit of quantification of this assay was 0.1 μg·mL-1 , and the linear calibration curve was acquired with R2 > 0.99 between 0.1 and 60 μg·mL-1 . The intra-day and inter-day precision were evaluated with coefficient of variations of 1.5%-5.8%, whereas the mean accuracy ranged from 91.7% to 106.9%. A negligible matrix effect and good recovery were obtained using this assay, with average extraction recoveries of MFD and the internal standard (IS) in the range of 85.5%-124.8% and 84.1%-94.0%, respectively. The precision of the absolute matrix effect of MFD and the IS was 1.2-3.0% and 1.2-7.3%, respectively. The samples were stable under all experimental conditions. Linear pharmacokinetics were observed for MFD in monkeys, where the exposures of MFD increased proportionally with increasing MFD doses at the range of 10-90 mg·kg-1 . Moderate elimination of MFD from the body was observed, with t1/2 of 5-7 h, and the elimination rate of MFD was stable during multiple dosing. In conclusion, this method provides an reliable analytical approach for quantification of MFD in plasma and was successfully applied to a pharmacokinetics study in monkeys.
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Affiliation(s)
- Xuhua Han
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Zhou Wen
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China.,Hunan Huize Bio-pharmaceutical Co., Ltd, Changsha, Hunan, 410013, China
| | - Zhihong Fan
- Hunan Taixin Pharmaceutical Technology Co., Ltd, Changsha, Hunan, 410013, China
| | - Yuehui Ma
- Hunan Taixin Pharmaceutical Technology Co., Ltd, Changsha, Hunan, 410013, China
| | - Lei Wang
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China.,School of Life Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Zeneng Cheng
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
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16
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Yuan Q, Wang J, Peng Z, Zhou Q, Xiao X, Xie Y, Wang W, Huang L, Tang W, Sun D, Zhang L, Wang F, Zhao MH, Tao L, He K, Xu H. Neutrophil-to-lymphocyte ratio and incident end-stage renal disease in Chinese patients with chronic kidney disease: results from the Chinese Cohort Study of Chronic Kidney Disease (C-STRIDE). J Transl Med 2019; 17:86. [PMID: 30876475 PMCID: PMC6420746 DOI: 10.1186/s12967-019-1808-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/21/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) leads to end-stage renal failure and cardiovascular events. An attribute to these progressions is abnormalities in inflammation, which can be evaluated using the neutrophil-to-lymphocyte ratio (NLR). We aimed to investigate the association of NLR with the progression of end stage of renal disease (ESRD), cardiovascular disease (CVD) and all-cause mortality in Chinese patients with stages 1-4 CKD. METHODS Patients with stages 1-4 CKD (18-74 years of age) were recruited at 39 centers in 28 cities across 22 provinces in China since 2011. A total of 938 patients with complete NLR and other relevant clinical variables were included in the current analysis. Cox regression analysis was used to estimate the association between NLR and the outcomes including ESRD, CVD events or all-cause mortality. RESULTS Baseline NLR was related to age, hypertension, serum triglycerides, total serum cholesterol, CVD history, urine albumin to creatinine ratio (ACR), chronic kidney disease-mineral and bone disorder (CKD-MBD), hyperlipidemia rate, diabetes, and estimated glomerular filtration rate (eGFR). The study duration was 4.55 years (IQR 3.52-5.28). Cox regression analysis revealed an association of NLR and the risk of ESRD only in patients with stage 4 CKD. We did not observe any significant associations between abnormal NLR and the risk of either CVD or all-cause mortality in CKD patients in general and CKD patients grouped according to the disease stages in particular. CONCLUSION Our results suggest that NLR is associated with the risk of ESRD in Chinese patients with stage 4 CKD. NLR can be used in risk assessment for ESRD among patients with advanced CKD; this application is appealing considering NLR being a routine test. Trial registration ClinicalTrials.gov Identifier NCT03041987. Registered January 1, 2012. (retrospectively registered) ( https://www.clinicaltrials.gov/ct2/show/NCT03041987?term=Chinese+Cohort+Study+of+Chronic+Kidney+Disease+%28C-STRIDE%29&rank=1 ).
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Affiliation(s)
- Qiongjing Yuan
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Jinwei Wang
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, 100034, China
| | - Zhangzhe Peng
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Qiaoling Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Xiangcheng Xiao
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Yanyun Xie
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Wei Wang
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Ling Huang
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Wenbin Tang
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Danni Sun
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Luxia Zhang
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, 100034, China.,Center for Data Science in Health and Medicine, Peking University, Beijing, China
| | - Fang Wang
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, 100034, China
| | - Ming-Hui Zhao
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, 100034, China.,Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Lijian Tao
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Kevin He
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Hui Xu
- Department of Nephrology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.
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Xing L, Song E, Yu CY, Jia XB, Ma J, Sui MS, Wang MA, Gao X. Bone marrow–derived mesenchymal stem cells attenuate tubulointerstitial injury through multiple mechanisms in UUO model. J Cell Biochem 2018; 120:9737-9746. [PMID: 30525227 DOI: 10.1002/jcb.28254] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/24/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Li Xing
- Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Erlin Song
- Department of Urinary Surgery First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Cheng Yuan Yu
- Department of cadre First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Xi Bei Jia
- Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Jing Ma
- Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Man Shu Sui
- Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Ming Ao Wang
- Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
| | - Xu Gao
- Department of Biochemistry and Molecular Biology Harbin Medical University Harbin Heilongjiang China
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18
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Yuan J, Shen Y, Yang X, Xie Y, Lin X, Zeng W, Zhao Y, Tian M, Zha Y. Thymosin β4 alleviates renal fibrosis and tubular cell apoptosis through TGF-β pathway inhibition in UUO rat models. BMC Nephrol 2017; 18:314. [PMID: 29047363 PMCID: PMC5648500 DOI: 10.1186/s12882-017-0708-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 08/24/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Thymosin β4 (Tβ4) is closely associated with the cytoskeleton, inflammation, wound healing, angiogenesis, apoptosis, and myocardial regeneration, but the effects of Tβ4 treatment on chronic renal tubular interstitial fibrosis (CRTIF) are poorly known. This study aimed to examine the effects of Tβ4 on the renal apoptosis and the expression of transforming growth factor (TGF-β), E-cadherin, and α-smooth muscle actin (α-SMA) in CRTIF rat models. METHODS Male SD rats were randomized into four groups (sham group, unilateral ureteral obstruction (UUO) group, UUO + low-dose Tβ4 group, and UUO + high-dose Tβ4 group). The pathological changes of kidney tissue and its function were assessed two weeks after UUO. In renal interstitial tissue,TGF-β, E-cadherin and α-SMA expression was detected by western blot. In tubular epithelial cells, E-cadherin and α-SMA expression was detected using Real-time qPCR and western blot. Cell apoptosis of rat renal interstitial tissue and tubular epithelial cells was evaluated by immunofluorescence and western blot. RESULTS Two weeks after UUO, no differences in blood urea nitrogen and creatinine were observed between the four groups (P > 0.05). Compared to the UUO group, Tβ4 treatment decreased the 24-h proteinuria (P < 0.001) and reduced the area of pathological change (P < 0.01); this effect was more apparent in the UUO + high-dose Tβ4 group. Compared to the UUO group, a significant decrease in TGF-β and α-SMA protein expression was observed in the high-dose Tβ4 group. The level of E-cadherin protein was lower in the UUO group than the Tβ4 groups, and high-dose Tβ4 treatment further increased E-cadherin expression and improved cell apoptosis in the renal interstitial tissue. Analysis of in vitro tubular epithelial cells showed that α-SMA mRNA and protein expression decreased, while E-cadherin mRNA and protein expression increased by Tβ4 treatment. Similarly, these changes were more significant in the UUO + high-dose Tβ4 group. Tβ4 treatment improved the apoptosis of In vitro tubular epithelial cells compared with pure TGF-β stimulation, and equally, the decrease of apoptosis was more apparent in the TGF-β + high-dose Tβ4 group. CONCLUSIONS Tβ4 treatment might alleviate the renal fibrosis and apoptosis of tubular epithelial cells through TGF-β pathway inhibition in UUO rats with CRTIF.
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Affiliation(s)
- Jing Yuan
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Yan Shen
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Xia Yang
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Ying Xie
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Xin Lin
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Wen Zeng
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Yingting Zhao
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Maolu Tian
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
| | - Yan Zha
- Department of Nephrology Guizhou Provincial People’s Hospital, Guiyang, 550002 China
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19
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Du C, Zhang T, Xiao X, Shi Y, Duan H, Ren Y. Protease-activated receptor-2 promotes kidney tubular epithelial inflammation by inhibiting autophagy via the PI3K/Akt/mTOR signalling pathway. Biochem J 2017; 474:2733-2747. [PMID: 28694352 DOI: 10.1042/bcj20170272] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/17/2017] [Accepted: 07/10/2017] [Indexed: 12/14/2022]
Abstract
Protease-activated receptor-2 (PAR2), which belongs to a specific class of the G-protein-coupled receptors, is central to several inflammation processes. However, the precise molecular mechanism involved remains undefined. Autophagy has been previously shown to affect inflammation. In the present study, we examine the effect of PAR2 on kidney tubular epithelial autophagy and on autophagy-related inflammation and reveal the underlying mechanism involved. Autophagic activity and levels of autophagic marker LC3 were examined in human kidney tubular epithelial cells with PAR2 knockdown or overexpression. We administered the mammalian target of rapamycin (mTOR) inhibitor (rapamycin) or activator (MHY1485) to investigate the function of the phosphoinositide 3-kinase (PI3K)/Akt/mTOR pathway. We also used transforming growth factor-β1 (TGF-β1)-induced HK-2 cell inflammation models to investigate the role of PAR2-associated autophagy in kidney tubular epithelial inflammation. PAR2 antagonist and rapamycin were administered to mice after unilateral ureteral obstruction to detect the correlations between PAR2, autophagy, and inflammation. Our results show that PAR2 overexpression in HK-2 cells led to a greater reduction in autophagy via the PI3K/Akt/mTOR pathway activation and induces autophagy-related inflammation. Meanwhile, a knockdown of PAR2 via PAR2 RNAi transfection greatly increased autophagy and alleviated autophagy-associated inflammation. In unilateral ureteral obstruction (UUO) kidneys, PAR2 antagonist treatment greatly attenuated renal inflammation and interstitial injury by enhancing autophagy. Moreover, inhibition of mTOR, rapa, markedly increased autophagy and inhibited the UUO-induced inflammation. We conclude that PAR2 induces kidney tubular epithelial inflammation by inhibiting autophagy via the PI3K/Akt/mTOR signalling pathway. Our results are suggestive that PAR2 inhibition may play a role in the treatment of diseases with increased inflammatory responses in renal systems.
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Affiliation(s)
- Chunyang Du
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
| | - Tao Zhang
- Department of Nephrology, The Third Affiliated Hospital of Hebei Mecial University, Shijiazhuang, China
| | - Xia Xiao
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
| | - Yonghong Shi
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
| | - Huijun Duan
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
| | - Yunzhuo Ren
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
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20
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Yuan X, Zhang J, Xie F, Tan W, Wang S, Huang L, Tao L, Xing Q, Yuan Q. Loss of the Protein Cystathionine β-Synthase During Kidney Injury Promotes Renal Tubulointerstitial Fibrosis. Kidney Blood Press Res 2017; 42:428-443. [PMID: 28750410 DOI: 10.1159/000479295] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 05/12/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Renal tubulointerstitial fibrosis (TIF) is the common pathway of progressive chronic kidney disease. Inflammation has been widely accepted as the major driving force of TIF. Cystathionine β-synthase (CBS) is the first and rate-limiting enzyme in the transsulfuration pathway. CBS is considered to play protective role in liver and pulmonary fibrosis, but its role in TIF remains unknown. The purpose of this study was to investigate the potential role and mechanism of CBS in renal inflammation and TIF. METHODS Renal function, tubulointerstitium damage index score, extracellular matrix (ECM) deposition, and the expressions of collagen I, collagen III, fibronectin, CD3, CD68, IL-1β, TNF-α were measured in sham operation and unilateral ureteral obstruction (UUO) rats. Proteomics and gene array analysis were performed to screen differentially expressed molecules in the development of renal inflammation and TIF in UUO rats. The expression of CBS was detected in patients with obstructive nephropathy and UUO rats. We confirmed the expression of CBS using western blot and real-time PCR in HK-2 cells. Overexpression plasmid and siRNA were transfected specifically to study the possible function of CBS in HK-2 cells. RESULTS Abundant expression of CBS, localized in renal tubular epithelial cells, was revealed in human and rat renal tissue, which correlated negatively with the progression of fibrotic disease. Expression of CBS was dramatically decreased in the obstructed kidney from UUO rats as compared with the sham group (SHM). In addition, knocking down CBS exacerbated extracellular matrix (ECM) deposition, whereas CBS overexpression attenuated TGF-β1-induced ECM deposition in vitro. Inflammatory and chemotactic factors were also increased in CBS knockdown HK-2 cells stimulated by IL-1β. CONCLUSIONS These findings establish CBS as a novel inhibitor in renal fibrosis and as a new therapeutic target in patients with chronic kidney disease.
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Affiliation(s)
- Xiangning Yuan
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Jin Zhang
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Feifei Xie
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Wenqing Tan
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Shuting Wang
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Ling Huang
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Lijian Tao
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
| | - Qiqi Xing
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Qiongjing Yuan
- Division of Nephrology, Department of Internal Medicine, Xiangya Hospital, Changsha, China
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21
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Zhang J, Zheng L, Yuan X, Liu C, Yuan Q, Xie F, Qiu S, Peng Z, Tang Y, Meng J, Qin J, Hu G, Tao L. Mefunidone ameliorates renal inflammation and tubulointerstitial fibrosis via suppression of IKKβ phosphorylation. Int J Biochem Cell Biol 2016; 80:109-118. [DOI: 10.1016/j.biocel.2016.10.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 10/03/2016] [Accepted: 10/06/2016] [Indexed: 02/06/2023]
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22
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Islam MA, Kim S, Firdous J, Lee AY, Hong SH, Seo MK, Park TE, Yun CH, Choi YJ, Chae C, Cho CS, Cho MH. A high affinity kidney targeting by chitobionic acid-conjugated polysorbitol gene transporter alleviates unilateral ureteral obstruction in rats. Biomaterials 2016; 102:43-57. [DOI: 10.1016/j.biomaterials.2016.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 06/02/2016] [Accepted: 06/05/2016] [Indexed: 02/07/2023]
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23
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Fu Q, Colgan SP, Shelley CS. Hypoxia: The Force that Drives Chronic Kidney Disease. Clin Med Res 2016; 14:15-39. [PMID: 26847481 PMCID: PMC4851450 DOI: 10.3121/cmr.2015.1282] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 09/30/2015] [Indexed: 12/15/2022]
Abstract
In the United States the prevalence of end-stage renal disease (ESRD) reached epidemic proportions in 2012 with over 600,000 patients being treated. The rates of ESRD among the elderly are disproportionally high. Consequently, as life expectancy increases and the baby-boom generation reaches retirement age, the already heavy burden imposed by ESRD on the US health care system is set to increase dramatically. ESRD represents the terminal stage of chronic kidney disease (CKD). A large body of evidence indicating that CKD is driven by renal tissue hypoxia has led to the development of therapeutic strategies that increase kidney oxygenation and the contention that chronic hypoxia is the final common pathway to end-stage renal failure. Numerous studies have demonstrated that one of the most potent means by which hypoxic conditions within the kidney produce CKD is by inducing a sustained inflammatory attack by infiltrating leukocytes. Indispensable to this attack is the acquisition by leukocytes of an adhesive phenotype. It was thought that this process resulted exclusively from leukocytes responding to cytokines released from ischemic renal endothelium. However, recently it has been demonstrated that leukocytes also become activated independent of the hypoxic response of endothelial cells. It was found that this endothelium-independent mechanism involves leukocytes directly sensing hypoxia and responding by transcriptional induction of the genes that encode the β2-integrin family of adhesion molecules. This induction likely maintains the long-term inflammation by which hypoxia drives the pathogenesis of CKD. Consequently, targeting these transcriptional mechanisms would appear to represent a promising new therapeutic strategy.
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Affiliation(s)
- Qiangwei Fu
- Kabara Cancer Research Institute, La Crosse, WI
| | - Sean P Colgan
- Mucosal Inflammation Program and University of Colorado School of Medicine, Aurora, CO
| | - Carl Simon Shelley
- University of Wisconsin School of Medicine and Public Health, Madison, WI
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24
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Cai XR, Yu J, Zhou QC, Du B, Feng YZ, Liu XL. Use of intravoxel incoherent motion MRI to assess renal fibrosis in a rat model of unilateral ureteral obstruction. J Magn Reson Imaging 2016; 44:698-706. [PMID: 26841951 DOI: 10.1002/jmri.25172] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 01/19/2016] [Indexed: 02/01/2023] Open
Affiliation(s)
- Xiang-Ran Cai
- Medical Imaging Center, First Affiliated Hospital; Jinan University; Guangzhou Guangdong China
| | - Juan Yu
- Department of Medical Imaging, Shenzhen Second People's Hospital; Shenzhen University; Shenzhen Guangdong China
| | - Qing-Chun Zhou
- Department of Urology, Nanhua Affiliated Hospital; Nanhua University; Hengyang Hunan China
| | - Bin Du
- Department of Pathology, First Affiliated Hospital; Jinan University; Guangzhou Guangdong China
| | - You-Zhen Feng
- Medical Imaging Center, First Affiliated Hospital; Jinan University; Guangzhou Guangdong China
| | - Xiao-ling Liu
- Medical Imaging Center, First Affiliated Hospital; Jinan University; Guangzhou Guangdong China
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25
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Bersani-Amado LE, Dantas JA, Damião MJ, Rocha BA, Besson JCF, Bastos RL, Silva LN, Bersani-Amado CA, Cuman RKN. Involvement of cytokines in the modulation and progression of renal fibrosis induced by unilateral ureteral obstruction in C57BL/6 mice: effects of thalidomide and dexamethasone. Fundam Clin Pharmacol 2015; 30:35-46. [PMID: 26501392 DOI: 10.1111/fcp.12162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 09/25/2015] [Accepted: 10/20/2015] [Indexed: 02/06/2023]
Abstract
This study investigated the kinetics of cytokines that are involved in the development of interstitial fibrosis in mice that were subjected to UUO, the interstitial type I and III collagen deposition, and the effects of Thalido and Dexa treatment on these parameters. Inbred C57BL/6 mice were divided into the groups: Normal (not submitted surgery), Sham (sham surgery), Control (UUO treated with 0.5% carboxymethyl cellulose), Thalido (UUO treated with 5 mg/kg thalidomide), and Dexa (UUO treated with 1 mg/kg dexamethasone). The treatments began the day before surgery and were administered once daily by gavage for 1, 7, or 14 days. At the end of each treatment period, blood samples were collected for the determination of creatinine, urea, cytokines. The Control group exhibited a increase in creatinine concentration compared with the Normal and Sham groups within the first 24 h after UUO, which remained high until days 7 and 14. The urea concentration was higher on days 7 and 14 in the Control group compared with the Sham group. In the Thalido and Dexa groups, a reduction of serum creatinine concentration was seen on day 14. Treatment with Dexa reduced the serum concentration of urea on day 7. The serum concentrations of cytokines (TNF-α, IL-1β, IL-6, IL-10 and IL-17) and chemokines (KC, MIG, bFGF) increased in UUO mice at all of the sampling times. The Dexa and Thalido groups exhibited alterations in the concentrations of these cytokines, suggesting the involvement of anti-inflammatory and immunomodulatory mechanisms that may have modified the fibrosis framework.
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Affiliation(s)
| | - Jaílson Araujo Dantas
- Department of Pharmacology and Therapeutic-State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
| | - Marcio José Damião
- Department of Pharmacology and Therapeutic-State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
| | - Bruno Ambrósio Rocha
- Department of Pharmacology and Therapeutic-State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
| | - Jean Carlos Fernando Besson
- Department of Morphological Sciences-State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
| | - Rafael Lucena Bastos
- Fellowship (Medicine), State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
| | - Letícia Nicoletti Silva
- Fellowship (medicine) Evangelical Faculty of Paraná, Rua Padre Anchieta, 2770, Curitiba, Paraná, Brazil
| | | | - Roberto Kenji Nakamura Cuman
- Department of Pharmacology and Therapeutic-State University of Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil
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