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Liu J, Wang H, Liu Q, Long S, Wu Y, Wang N, Lin W, Chen G, Lin M, Wen J. Klotho exerts protection in chronic kidney disease associated with regulating inflammatory response and lipid metabolism. Cell Biosci 2024; 14:46. [PMID: 38584258 PMCID: PMC11000353 DOI: 10.1186/s13578-024-01226-4] [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: 10/18/2023] [Accepted: 03/27/2024] [Indexed: 04/09/2024] Open
Abstract
BACKGROUND The anti-aging protein Klotho plays a protective role in kidney disease, but its potential as a biomarker for chronic kidney disease (CKD) is controversial. Additionally, the main pathways through which Klotho exerts its effects on CKD remain unclear. Therefore, we used bioinformatics and clinical data analysis to determine its role in CKD. RESULTS We analyzed the transcriptomic and clinical data from the Nephroseq v5 database and found that the Klotho gene was mainly expressed in the tubulointerstitium, and its expression was significantly positively correlated with estimated glomerular filtration rate (eGFR) and negatively correlated with blood urea nitrogen (BUN) in CKD. We further found that Klotho gene expression was mainly negatively associated with inflammatory response and positively associated with lipid metabolism in CKD tubulointerstitium by analyzing two large sample-size CKD tubulointerstitial transcriptome datasets. By analyzing 10-year clinical data from the National Health and Nutrition Examination Survey (NHANES) 2007-2016, we also found that Klotho negatively correlated with inflammatory biomarkers and triglyceride and positively correlated with eGFR in the CKD population. Mediation analysis showed that Klotho could improve renal function in the general population by modulating the inflammatory response and lipid metabolism, while in the CKD population, it primarily manifested by mediating the inflammatory response. Restricted cubic spline (RCS) analysis showed that the optimal concentration range for Klotho to exert its biological function was around 1000 pg/ml. Kaplan-Meier curves showed that lower cumulative hazards of all-cause mortality in participants with higher levels of Klotho. We also demonstrated that Klotho could reduce cellular inflammatory response and improve cellular lipid metabolism by establishing an in vitro model similar to CKD. CONCLUSIONS Our results suggest that Klotho exerts protection in CKD, which may be mainly related to the regulation of inflammatory response and lipid metabolism, and it can serve as a potential biomarker for CKD.
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Affiliation(s)
- Junhui Liu
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Huaicheng Wang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
| | - Qinyu Liu
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shushu Long
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yanfang Wu
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Nengying Wang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Wei Lin
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Gang Chen
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China.
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.
| | - Miao Lin
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China.
- Department of Nephrology, Provincial Clinical College, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China.
| | - Junping Wen
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, China.
- Department of Endocrinology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.
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Li N, Huang Y, Yi Y, Qian J, Li Q, Xu SQ, Wang HF, Wu XX, Peng JC, Li LH, Yao JJ, Liu XR. Analysis of abnormal expression of signaling pathways in PQ-induced acute lung injury in SD rats based on RNA-seq technology. Inhal Toxicol 2024; 36:1-12. [PMID: 38175690 DOI: 10.1080/08958378.2023.2300373] [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: 02/09/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
Background: Paraquat (PQ) plays an important role in agricultural production due to its highly effective herbicidal effect. However, it has led to multiple organ failure in those who have been poisoned, with damage most notable in the lungs and ultimately leading to death. Because of little research has been performed at the genetic level, and therefore, the specific genetic changes caused by PQ exposure are unclear.Methods: Paraquat poisoning model was constructed in Sprague Dawley (SD) rats, and SD rats were randomly divided into Control group, paraquat (PQ) poisoning group and Anthrahydroquinone-2,6-disulfonate (AH2QDS) treatment group. Then, the data was screened and quality controlled, compared with reference genes, optimized gene structure, enriched at the gene expression level, and finally, signal pathways with significantly different gene enrichment were screened.Results: This review reports on lung tissues from paraquat-intoxicated Sprague Dawley (SD) rats that were subjected to RNA-seq, the differentially expressed genes were mainly enriched in PI3K-AKT, cGMP-PKG, MAPK, Focal adhesion and other signaling pathways.Conclusion: The signaling pathways enriched with these differentially expressed genes are summarized, and the important mechanisms mediated through these pathways in acute lung injury during paraquat poisoning are outlined to identify important targets for AH2QDS treatment of acute lung injury due to paraquat exposure, information that will be used to support a subsequent in-depth study on the mechanism of PQ action.
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Affiliation(s)
- Nan Li
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Yue Huang
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Yang Yi
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Jin Qian
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Qi Li
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Shuang-Qin Xu
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Hang-Fei Wang
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
| | - Xin-Xin Wu
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Ji-Chao Peng
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Li-Hua Li
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Jin-Jian Yao
- Emergency Department, Hainan General Hospital, Affiliated to Hainan Medical University, Haikou, China
| | - Xiao-Ran Liu
- College of Emergency and Trauma, Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma Research, Hainan Medical University, Haikou, China
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Li N, Wu JJ, Qi M, Wang ZY, Zhang SN, Li XQ, Chen TT, Wang MF, Zhang LL, Wei W, Sun WY. CP-25 exerts a protective effect against ConA-induced hepatitis via regulating inflammation and immune response. Front Pharmacol 2022; 13:1041671. [DOI: 10.3389/fphar.2022.1041671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/01/2022] [Indexed: 11/17/2022] Open
Abstract
Hepatitis is a complex multifactorial pathological disorder, which can eventually lead to liver failure and even potentially be life threatening. Paeoniflorin-6′-O-benzene sulfonate (CP-25) has proven to have critical anti-inflammatory effects in arthritis. However, the effects of CP-25 in the pathogenesis of hepatitis remains unclear. In this experiment, mice were intragastrically administered with CP-25 (25, 50 and 100 mg/kg), and then ConA (25 mg/kg) was intravenous injected to establish hepatitis model in vivo. CP-25 administration attenuated liver damage and decreased ALT and AST activities in mice with hepatitis. Besides, CP-25 modulated immune responses including down-regulated the proportions of activated CD4+, activated CD8+ T cells, and ratio of Th1/Th2 in ConA-injected mice. Furthermore, ConA-mediated production of reactive oxygen species (ROS), release of inflammatory cytokines including IFN-γ, TNF-α, activation of MAPK pathways and nuclear translocation of nuclear factor-kappaB (NF-κB) were significantly decreased in CP-25 administrated mice. In ConA-stimulated RAW264.7 cells, CP-25 suppressed inflammatory cytokines secretion and reduced ROS level, which were consistent with animal experiments. Otherwise, the data showed that CP-25 restrained phosphorylation of ERK, JNK and p38 MAPK pathways influenced by ROS, accompanied with inhibiting NF-κB nuclear translocation. In conclusion, our findings indicated that CP-25 protected against ConA-induced hepatitis may through modulating immune responses and attenuating ROS-mediated inflammation via the MAPK/NF-κB signaling pathway.
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Li W, Li M, Chen K, Tang Y, Yin R, Lan L, Hong G. Oxaloacetate acid ameliorates paraquat-induced acute lung injury by alleviating oxidative stress and mitochondrial dysfunction. Front Pharmacol 2022; 13:1029775. [PMID: 36313362 PMCID: PMC9606601 DOI: 10.3389/fphar.2022.1029775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/03/2022] [Indexed: 11/30/2022] Open
Abstract
Acute lung injury (ALI) is the primary cause of death among patients with acute paraquat (PQ) poisoning, whereby peroxidative damage is an important mechanism underlying PQ-induced lung injury. There is a lack of effective interventional drugs for patients with PQ poisoning. Oxaloacetic acid (OAA) participates in multiple in vivo metabolic processes, whereby it facilitates the clearance of reactive oxygen species (ROS) and improves mitochondrial function. The study aimed to assess the protective effects of OAA on PQ-induced ALI and elucidate the underlying molecular mechanism. Our data demonstrated that OAA treatment significantly alleviated PQ-induced ALI and improved the survival rate of PQ-poisoned mice, and also alleviated PQ-induced cellular oxidative stress and mitochondrial dysfunction. OAA-mediated alleviation of PQ-induced mitochondrial dysfunction depends on the following mechanisms which may explain the above findings: 1) OAA effectively cleared intracellular ROS, inhibited ROS accumulation, and mitochondrial depolarization; 2) OAA inhibited the downregulation of L-OPA1 and MFN2 caused by PQ and promoted a dynamic balance of mitochondrial fusion and fission, and 3) the expression of PGC-1α, TFAM, COX2, and COX4I1, increased significantly following OAA intervention which improved mitochondrial respiratory functions and promoted its biogenesis and energy metabolism in damaged cells. In conclusion, OAA effectively cleared ROS and improved mitochondrial dysfunction, thereby significantly improving ALI caused by PQ poisoning and the animal survival rate. Therefore, OAA may be a potential drug for the treatment of PQ poisoning.
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Affiliation(s)
- Wenwen Li
- First Clinical Medicine Institute, Wenzhou Medical University, Wenzhou, China
| | - Mengxuan Li
- First Clinical Medicine Institute, Wenzhou Medical University, Wenzhou, China
| | - Kaiyuan Chen
- First Clinical Medicine Institute, Wenzhou Medical University, Wenzhou, China
| | - Yahui Tang
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, China
| | - Ran Yin
- First Clinical Medicine Institute, Wenzhou Medical University, Wenzhou, China
| | - Linhua Lan
- First Clinical Medicine Institute, Wenzhou Medical University, Wenzhou, China
| | - Guangliang Hong
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, China
- *Correspondence: Guangliang Hong,
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5
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Alizadeh S, Anani-Sarab G, Amiri H, Hashemi M. Paraquat induced oxidative stress, DNA damage, and cytotoxicity in lymphocytes. Heliyon 2022; 8:e09895. [PMID: 35855999 PMCID: PMC9287805 DOI: 10.1016/j.heliyon.2022.e09895] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/26/2022] [Accepted: 07/01/2022] [Indexed: 11/26/2022] Open
Abstract
Paraquat (PQ) is a herbicide belonging to the group of bipyridylium salts. The objective of this study was to evaluate oxidative stress, DNA damage, and cytotoxicity induced by paraquat in peripheral lymphocyte cells in vivo as well as pathological changes in various tissues. For this purpose, 28 male Wistar rats in 6 different groups were poisoned by paraquat gavage and blood samples were taken from the hearts of rats after during the poisoning period. Oxidative stress, DNA damage, cell membrane integrity, serum lactate dehydrogenase, and cytotoxicity, were investigated by Ferric Reducing Antioxidant Potential (FRAP) test, alkaline comet assay, measuring serum lactate dehydrogenase (LDH), Hoechst staining and flow cytometry with propidium iodide (PI) respectively. The lung, kidney, and liver tissues were also examined pathologically. Paraquat caused dose-dependent DNA damage in peripheral lymphocyte cells and significant oxidative cell membrane damage. The most damage was caused by a single dose of 200 mg/kg b.w of paraquat by gavage. The gradual exposure to a dose of 300 mg/kg b.w of paraquat showed less damage, which could be due to the activation of the antioxidant defense mechanism. Paraquat induced oxidative stress. Paraquat increases serum lactate dehydrogenase. Oxidative stress Inducted by exposure to paraquat Inducted DNA damage.
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Affiliation(s)
- Soheila Alizadeh
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Gholamreza Anani-Sarab
- Medical Toxicology & Drug Abuse Research Center Birjand University of Medical Sciences, Birjand, Iran.,School of Allied Medical Sciences Birjand University of Medical Sciences, Birjand, Iran
| | - Hoda Amiri
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Hashemi
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran.,Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
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Chen Q, Wu Y, Zhong M, Xu C, Chen R, Liu N. Amphiregulin secreted by cartilage endplate stem cells inhibits intervertebral disk degeneration and TNF-α production via PI3K/AKT and ERK1/2 signaling pathways. Mol Cell Toxicol 2022. [DOI: 10.1007/s13273-022-00254-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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NLRP3 Knockout Protects against Lung Injury Induced by Cerebral Ischemia–Reperfusion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6260102. [PMID: 35432726 PMCID: PMC9012655 DOI: 10.1155/2022/6260102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/26/2022] [Indexed: 11/18/2022]
Abstract
Background and Purpose. Stroke-associated pneumonia (SAP) is a common complication after stroke that increases the mortality of patients. Although there have been many studies suggesting that stroke can increase patient susceptibility to pneumonia, it is still unknown whether the treatment of stroke can also improve lung injury. We used NLRP3-knockout (NLRP3-KO) mice to verify that an improvement in brain injury would also be beneficial to lung injury and further confirm the relationship between stroke and pneumonia. Methods. C57/BL6 wild-type (WT) and NLRP3-KO mice were used to construct middle cerebral artery occlusion (MCAO) models. 2,3,5-Triphenyltetrazolium chloride (TTC) was used to evaluate brain damage, and neurological deficits were assessed. Then, lung tissue injury was examined in the different groups of mice by hematoxylin-eosin (HE) staining. Inflammation (macrophage and neutrophil infiltration, NLRP3-associated inflammatory molecules) and oxidative stress (reactive oxygen species, ROS) in the lungs were comprehensively examined by immunofluorescence staining and Western blotting. Results. First, our findings demonstrated that NLRP3 knockout had a protective effect against cerebral ischemia–reperfusion injury after MCAO. Second, by reducing brain damage after MCAO, lung inflammation was also alleviated. Immunofluorescence staining showed that NLRP3-KO-MCAO mice had reduced inflammatory effector molecule (caspase-1 and IL-1β) expression and macrophage and neutrophil infiltration in the lung, as well as remissive oxidative stress state in the lung, compared with WT-MCAO mice. We also observed a decrease in phosphorylated p65 (p-p65) (an NF-κB factor) in NLRP3-KO-MCAO mice, suggesting that the NF-κB pathway was involved in the protective effect of NLRP3 gene knockout on stroke-induced lung injury. Conclusions. NLRP3 inflammasome knockout not only is beneficial for cerebral ischemia–reperfusion injury but also reduces the severity of poststroke lung injury by reducing brain damage. It has been confirmed that there is a relationship between central insult and peripheral organ injury, and protecting the brain can prevent peripheral organ damage.
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Liu C, Sun ZR, Wang MM, Yang ZZ, Zhang W, Ren Y, Han XQ, Liu R, Li Q, Nie SN. Arctigenin attenuates paraquat-induced human lung epithelial A549 cell injury by suppressing ROS/p38 mitogen-activated protein kinases-mediated apoptosis. World J Emerg Med 2022; 13:373-378. [PMID: 36119774 PMCID: PMC9420658 DOI: 10.5847/wjem.j.1920-8642.2022.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/20/2022] [Indexed: 09/11/2023] Open
Abstract
BACKGROUND Paraquat (PQ)-induced acute lung injury (ALI) and pulmonary fibrosis are common diseases with high mortality but without effective antidotes in emergency medicine. Our previous study has proved that arctigenin suppressed pulmonary fibrosis induced by PQ. We wondered whether arctigenin could also have a protective effect on PQ-induced ALI. METHODS A PQ-induced A549 cell injury model was used, and the effect of arctigenin was determined by a cell counting kit-8 (CCK-8) cell viability assay. In addition, terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labelling (TUNEL) staining assays and mitochondrial membrane potential assays were performed to evaluate the level of cell apoptosis. The generation of reactive oxygen species (ROS) was reflected by dihydroethidium (DHE) staining and a 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA) assay. Moreover, immunoblotting studies were used to assess the expression of mitogen-activated protein kinases (MAPKs) and p38 MAPK. RESULTS Arctigenin attenuated PQ-induced inhibition of A549 cell viability in a dose-dependent manner. Arctigenin also significantly reduced PQ-induced A549 cell apoptosis, as reflected by the TUNEL assay and mitochondrial membrane potential assay, which may result from suppressed ROS/p38 MAPK signaling because we found that arctigenin dramatically suppressed ROS generation and p38 MAPK phosphorylation. CONCLUSION Arctigenin could attenuate PQ-induced lung epithelial A549 cell injury in vitro by suppressing ROS/p38 MAPK-mediated cell apoptosis, and arctigenin might be considered a potential candidate drug for PQ-induced ALI.
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Affiliation(s)
- Chao Liu
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Zhao-rui Sun
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Meng-meng Wang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Zhi-zhou Yang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Wei Zhang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Yi Ren
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Xiao-qin Han
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Rui Liu
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Quan Li
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Shi-nan Nie
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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Anthrahydroquinone-2-6-disulfonate is a novel, powerful antidote for paraquat poisoning. Sci Rep 2021; 11:20159. [PMID: 34635711 PMCID: PMC8505516 DOI: 10.1038/s41598-021-99591-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/29/2021] [Indexed: 12/19/2022] Open
Abstract
Paraquat (PQ) is a widely used fast-acting pyridine herbicide. Accidental ingestion or self-administration via various routes can cause severe organ damage. Currently, no effective antidote is available commercially, and the mortality rate of poisoned patients is exceptionally high. Here, the efficacy of anthrahydroquinone-2-6-disulfonate (AH2QDS) was observed in treating PQ poisoning by constructing in vivo and ex vivo models. We then explored the detoxification mechanism of AH2QDS. We demonstrated that, in a rat model, the PQ concentration in the PQ + AH2QDS group significantly decreased compared to the PQ only group. Additionally, AH2QDS protected the mitochondria of rats and A549 cells and decreased oxidative stress damage, thus improving animal survival and cell viability. Finally, the differentially expressed genes were analysed in the PQ + AH2QDS group and the PQ group by NextGen sequencing, and we verified that Nrf2's expression in the PQ + AH2QDS group was significantly higher than that in the PQ group. Our work identified that AH2QDS can detoxify PQ by reducing PQ uptake and protecting mitochondria while enhancing the body's antioxidant activity.
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10
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Gagan JM, Cao K, Zhang YA, Zhang J, Davidson TL, Pastor JV, Moe OW, Hsia CCW. Constitutive transgenic alpha-Klotho overexpression enhances resilience to and recovery from murine acute lung injury. Am J Physiol Lung Cell Mol Physiol 2021; 321:L736-L749. [PMID: 34346778 DOI: 10.1152/ajplung.00629.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
AIMS Normal lungs do not express alpha-Klotho (Klotho) protein but derive cytoprotection from circulating soluble Klotho. It is unclear whether chronic supranormal Klotho levels confer additional benefit. To address this, we tested the age-related effects of Klotho overexpression on acute lung injury (ALI) and recovery. METHODS Transgenic Klotho-overexpressing (Tg-Kl) and wild-type (WT) mice (2 and 6 months old) were exposed to hyperoxia (95% O2; 72 h) then returned to normoxia (21% O2; 24 h) (Hx-R). Control mice were kept in normoxia. Renal and serum Klotho, lung histology, and bronchoalveolar lavage fluid oxidative damage markers were assessed. Effects of hyperoxia were tested in human embryonic kidney cells stably expressing Klotho. A549 lung epithelial cells transfected with Klotho cDNA or vector were exposed to cigarette smoke; lactate dehydrogenase and double-strand DNA breaks were measured. RESULTS Serum Klotho decreased with age. Hyperoxia suppressed renal Klotho at both ages and serum Klotho at 2-months of age. Tg-Kl mice at both ages and 2-months-old WT mice survived Hx-R; 6-months-old Tg-Kl mice showed lower lung damage than age-matched WT mice. Hyperoxia directly inhibited Klotho expression and release in vitro; Klotho transfection attenuated cigarette smoke-induced cytotoxicity and DNA double-strand breaks in lung epithelial cells. CONCLUSIONS Young animals with chronic high baseline Klotho expression are more resistant to ALI. Chronic constitutive Klotho overexpression in older Tg-Kl animals attenuates hyperoxia-induced lung damage and improves survival and short-term recovery despite an acute reduction in serum Klotho level during injury. We conclude that chronic enhancement of Klotho expression increases resilience to ALI.
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Affiliation(s)
- Joshuah M Gagan
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Khoa Cao
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Yu-An Zhang
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jianning Zhang
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Taylor L Davidson
- Charles and Jane Pak Center of Mineral Metabolism and Clinical Research, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Johanne V Pastor
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Charles and Jane Pak Center of Mineral Metabolism and Clinical Research, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Orson W Moe
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Charles and Jane Pak Center of Mineral Metabolism and Clinical Research, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Department of Physiology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Connie C W Hsia
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, United States
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11
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Gao Y, Hou L, Wang Y, Zhang Y, Zhang S, Li Y, Jiang Y, Zhu C, Sun T, Duan G, Yuan D. Comparison of Pancreatic Damage in Rats for Two Methods of Paraquat Administration. Front Pharmacol 2021; 12:611433. [PMID: 33967752 PMCID: PMC8099104 DOI: 10.3389/fphar.2021.611433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/01/2021] [Indexed: 01/09/2023] Open
Abstract
It is noted that elevated serum amylase levels suggesting pancreatic damage has an association with prognosis in PQ patients. This study aimed to determine whether PQ can cause pancreatic damage. The two conventional models (intragastric infusion (iG) and intraperitoneal injection (iP)) may exhibit different effects on the pancreas depending on whether or not they pass through the digestive tract. In this study, the rats were divided into four groups: the intragastric infusion group (PQ-iG, n = 45), intraperitoneal injection group (PQ-iP, n = 53), normal control group 1 (NC-iG, n = 6) and normal control group 2 (NC-iP, n = 6). Pancreatic damage was compared between groups using serum amylase activity assay, hematoxylin and eosin (H&E) staining, TUNEL assay, and transmission electron microscopy (TEM). Serum amylase levels in group PQ-iG were significantly higher than in group PQ-iP (p < 0.05). Examination of the H&E sections showed damage to the pancreas. Both experimental groups were displayed inflammatory infiltration within 9 h of PQ treatment. After 9 h, patchy necrosis was observed in group PQ-iP, when inflammatory infiltration was still the dominant pathology. Necrosis appeared and gradually worsened in group PQ-iG, in which necrosis was the dominant pathology. The TUNEL assay showed significantly higher numbers of apoptotic cells in the pancreas of PQ-groups than in the control NC- groups (p < 0.05). TEM showed expansive endoplasmic reticulum lumens and mitochondria swelling in the pancreas of the PQ-groups. It is concluded that both methods of modeling could cause pancreatic damage and the type and degree of damage would change over time. Note that pancreatic damage in group PQ-iG was more severe than that in group PQ-iP. Therefore, clinical practitioners should pay close attention to pancreatic damage caused by PQ, especially when the route of PQ administration was oral.
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Affiliation(s)
- Yanxia Gao
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Linlin Hou
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yibo Wang
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Zhang
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shoutao Zhang
- Henan Key Laboratory of Bioactive Macromolecules, School of Life Sciences, Zhengzhou, China
| | - Yi Li
- Emergency Department, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Yanan Jiang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Changju Zhu
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwen Sun
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guoyu Duan
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ding Yuan
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Hou Y, Yuan P, Fu Y, Zhang Q, Gao L, Wei Y, Zheng X, Feng W. Geniposide from Gardenia jasminoides var. radicans Makino Attenuates Myocardial Injury in Spontaneously Hypertensive Rats via Regulating Apoptotic and Energy Metabolism Signalling Pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:949-962. [PMID: 33688169 PMCID: PMC7937395 DOI: 10.2147/dddt.s292107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/10/2021] [Indexed: 12/15/2022]
Abstract
Introduction Hypertension is closely related to myocardial injury. Long-term hypertension can cause myocardial injury. Therefore, it is very important to find drugs to treat myocardial injury caused by hypertension. The aim of present study is to investigate the effects and mechanisms of geniposide on myocardial injuries in spontaneously hypertensive rats (SHR) and H9c2 cells induced by NaCl solution. Materials and Methods Male Wistar-Kyoto (WKY) and SHR rats were given different doses of geniposide (25 mg/kg/d or 50 mg/kg/d) or distilled water for three consecutive weeks. Meanwhile, an H9c2 cell line-injury model was established using a solution of 150 µmol/L NaCl for 8 h. The cardiac function and related indexes of rats were detected. Results The results showed that geniposide decreased the levels of COI and COIII, which promoted the phosphorylation of AMPK (p-AMPK) and enhanced the energy metabolism pathway. Geniposide improved myocardial apoptosis by regulating apoptotic proteins (p38, BAX and Bcl-2). Finally, heart function was regulated, and the markers of myocardial injury were decreased. Geniposide increased the viability of H9c2 cells treated with the NaCl solution and decreased the rate of apoptosis by regulating the levels of apoptotic proteins. Geniposide could activate energy metabolism signalling pathway (AMPK/SirT1/FOXO1) and reduce H9c2 cell apoptosis. Conclusion Our results showed that the mechanisms by which geniposide improves myocardial injury in SHR may be through regulating the energy metabolism signalling pathway (AMPK/SirT1/FOXO1) and improving myocardial apoptosis by regulating apoptotic proteins.
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Affiliation(s)
- Ying Hou
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Peipei Yuan
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Yang Fu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Qi Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Liyuan Gao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Yaxin Wei
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China.,Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan Science and Technology Department, Zhengzhou, 450046, People's Republic of China
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China.,Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan Science and Technology Department, Zhengzhou, 450046, People's Republic of China
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Wang H, Jiang Z, Pang Z, Zhou T, Gu Y. Acacetin Alleviates Inflammation and Matrix Degradation in Nucleus Pulposus Cells and Ameliorates Intervertebral Disc Degeneration in vivo. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:4801-4813. [PMID: 33204066 PMCID: PMC7667005 DOI: 10.2147/dddt.s274812] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022]
Abstract
Purpose Intervertebral disc degeneration (IDD) is one of the most prevalent musculoskeletal disorders. The nucleus pulposus is the major component of the intervertebral disc, and nucleus pulposus cells (NPCs) play a significant role in the normal functioning of the intervertebral disc. Reactive oxygen species (ROS) generation, inflammation and extracellular matrix degradation in NPCs contribute to the degeneration of intervertebral discs. Acacetin is a drug that exerts antioxidant and anti-inflammatory effects on many types of cells. However, whether acacetin can relieve the degeneration of NPCs remains unknown. Methods NPCs were extracted from rat intervertebral discs. The NPCs were treated with tert-butyl peroxide (TBHP) to simulate a high-ROS environment, and acacetin was subsequently added. The contents of ROS, inflammatory mediators (COX-2, iNOS) and extracellular matrix components (aggrecan, collagen II, MMP13, MMP9, MMP3) were measured. Components of related signaling pathways (Nrf2, MAPK) were also evaluated. To determine the effect of acacetin in vivo, we simulated disc degeneration via needle puncture. Acacetin was then applied intraperitoneally, and the degenerative status was evaluated using MRI and histopathological analysis. Results In vitro, acacetin alleviated TBHP-induced ROS generation and upregulated the expression of antioxidant proteins, including HO-1, NQO1, and SOD. In addition, acacetin relieved the TBHP-induced generation of inflammatory mediators (COX-2, iNOS) and degradation of the extracellular matrix (aggrecan, collagen II, MMP13, MMP9, and MMP3). Acacetin exerted its effect by activating the Nrf2 pathway and inhibiting p38, JNK and ERK1/2 phosphorylation. In vivo, acacetin ameliorated puncture-induced disc degeneration in a rat tail model, which was evaluated using MRI and histopathological analysis. Conclusion Acacetin alleviated IDD in vitro and in vivo and may have the potential to be developed as an effective treatment for IDD.
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Affiliation(s)
- Hao Wang
- Department of Orthopaedic Surgery, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, People's Republic of China
| | - Zengxin Jiang
- Department of Orthopaedic Surgery, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, People's Republic of China
| | - Zhiying Pang
- Department of Orthopaedic Surgery, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, People's Republic of China
| | - Tianyao Zhou
- Department of Orthopaedic Surgery, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, People's Republic of China
| | - Yutong Gu
- Department of Orthopaedic Surgery, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, People's Republic of China.,Department of Orthopaedic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, People's Republic of China
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