1
|
Imaduddin UK, Berbudi A, Rohmawaty E. The Effect of Physalis angulata L. Administration on Gene Expressions Related to Lung Fibrosis Resolution in Mice-Induced Bleomycin. J Exp Pharmacol 2024; 16:49-60. [PMID: 38317831 PMCID: PMC10840535 DOI: 10.2147/jep.s439932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024] Open
Abstract
Purpose To explore the potential therapeutic effects of Physalis angulata L. (Ciplukan) extract on lung fibrosis resolution in a Bleomycin-induced mouse model, researchers conducted a comprehensive study. The study focused on key genes associated with fibrosis progression, including Nox4, Mmp8, Klf4, and FAS, and assessed their mRNA expression levels following the administration of Ciplukan extract. Methods A Bleomycin-induced mice model was divided into seven groups to investigate the effects of ciplukan extract on fibrosis-related gene expressions. Mice were induced with subcutaneously injected Bleomycin to generate lung fibrosis and given different doses of the Ciplukan extract for four weeks. Lung fibrosis mRNA expression was analyzed by semi-quantitative PCR for Nox4, Klf4, Mmp8, and FAS. Results The administration of ciplukan extract resulted in a significant decrease in mRNA expression of Nox4 with p-value=0.000, Mmp8 with p-value =0.002, and Klf4 with p-value =0.007, indicating potential antifibrotic effects. However, FAS expression remained unchanged (p-value=0.127). Conclusion Ciplukan extract exhibited promising effects on fibrosis-related gene expressions, particularly Nox4, Mmp8, and Klf4. This study suggests that the extract has the potential to intervene in fibrosis progression, offering a potential avenue for therapeutic strategies.
Collapse
Affiliation(s)
- Ummul Khair Imaduddin
- Graduate School of Master Program in Anti Aging and Aesthetic Medicine, Faculty of Medicine, Universitas Padjadjaran, Bandung, West Java, Indonesia
| | - Afiat Berbudi
- Parasitology Division, Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Bandung, West Java, Indonesia
| | - Enny Rohmawaty
- Pharmacology & Therapy Division, Departement of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Bandung, West Java, Indonesia
| |
Collapse
|
2
|
Mukhopadhyay A, Tsukasaki Y, Chan WC, Le JP, Kwok ML, Zhou J, Natarajan V, Mostafazadeh N, Maienschein-Cline M, Papautsky I, Tiruppathi C, Peng Z, Rehman J, Ganesh B, Komarova Y, Malik AB. trans-Endothelial neutrophil migration activates bactericidal function via Piezo1 mechanosensing. Immunity 2024; 57:52-67.e10. [PMID: 38091995 PMCID: PMC10872880 DOI: 10.1016/j.immuni.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/02/2023] [Accepted: 11/10/2023] [Indexed: 12/21/2023]
Abstract
The regulation of polymorphonuclear leukocyte (PMN) function by mechanical forces encountered during their migration across restrictive endothelial cell junctions is not well understood. Using genetic, imaging, microfluidic, and in vivo approaches, we demonstrated that the mechanosensor Piezo1 in PMN plasmalemma induced spike-like Ca2+ signals during trans-endothelial migration. Mechanosensing increased the bactericidal function of PMN entering tissue. Mice in which Piezo1 in PMNs was genetically deleted were defective in clearing bacteria, and their lungs were predisposed to severe infection. Adoptive transfer of Piezo1-activated PMNs into the lungs of Pseudomonas aeruginosa-infected mice or exposing PMNs to defined mechanical forces in microfluidic systems improved bacterial clearance phenotype of PMNs. Piezo1 transduced the mechanical signals activated during transmigration to upregulate nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4, crucial for the increased PMN bactericidal activity. Thus, Piezo1 mechanosensing of increased PMN tension, while traversing the narrow endothelial adherens junctions, is a central mechanism activating the host-defense function of transmigrating PMNs.
Collapse
Affiliation(s)
- Amitabha Mukhopadhyay
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Wan Ching Chan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jonathan P Le
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Man Long Kwok
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jian Zhou
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Viswanathan Natarajan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA; Department of Medicine, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Nima Mostafazadeh
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Mark Maienschein-Cline
- Research Informatics Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Ian Papautsky
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Zhangli Peng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Balaji Ganesh
- Flow Cytometry Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yulia Komarova
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
| |
Collapse
|
3
|
Qin HJ, He SY, Shen K, Lin QR, Hu YJ, Chen ZL, Yu B, Jiang N. Melatonin, a potentially effective drug for the treatment of infected bone nonunion. J Pineal Res 2024; 76:e12914. [PMID: 37753741 DOI: 10.1111/jpi.12914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/07/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023]
Abstract
Osteomyelitis (OM), characterized by heterogeneity and complexity in treatment, has a high risk of infection recurrence which may cause limb disability. Management of chronic inactive osteomyelitis (CIOM) without typical inflammatory symptoms is a great challenge for orthopedic surgeons. On the basis of data analysis of 1091 OM cases, we reported that latent osteogenic decline in CIOM patients was the main cause of secondary surgery. Our research shows that impairment of osteoblasts capacity in CIOM patients is associated with ferroptosis of osteoblasts caused by internalization of Staphylococcus aureus. Further studies show that melatonin could alleviate ferroptosis of osteoblasts in infected states through Nox4/ROS/P38 axis and protect the osteogenic ability of CIOM patients. Knockout of NADPH oxidase 4 (Nox4) in vivo could effectively relieve ferroptosis of osteoblasts in the state of infection and promote osteogenesis. Through a large number of clinical data analyses combined with molecular experiments, this study clarified that occult osteogenic disorders in CIOM patients were related to ferroptosis of osteoblasts. We revealed that melatonin might be a potential therapeutic drug for CIOM patients and provided a new insight for the treatment of OM.
Collapse
Affiliation(s)
- Han-Jun Qin
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Si-Ying He
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ke Shen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qing-Rong Lin
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yan-Jun Hu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zi-Lin Chen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Nan Jiang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
4
|
Matsunaga S, Kohda A, Kamakura S, Hayase J, Miyano K, Shiose A, Sumimoto H. Hypoxia stabilizes the H 2 O 2 -producing oxidase Nox4 in cardiomyocytes via suppressing autophagy-related lysosomal degradation. Genes Cells 2024; 29:63-72. [PMID: 37985134 DOI: 10.1111/gtc.13085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023]
Abstract
The hydrogen peroxide (H2 O2 )-producing NADPH oxidase Nox4, forming a heterodimer with p22phox , is expressed in a variety of cells including those in the heart to mediate adaptive responses to cellular stresses such as hypoxia. Since Nox4 is constitutively active, H2 O2 production is controlled by its protein abundance. Hypoxia-induced Nox4 expression is observed in various types of cells and generally thought to be regulated at the transcriptional level. Here we show that hypoxia upregulates the Nox4 protein level and Nox4-catalyzed H2 O2 production without increasing the Nox4 mRNA in rat H9c2 cardiomyocytes. In these cells, the Nox4 protein is stabilized under hypoxic conditions in a manner dependent on the presence of p22phox . Cell treatment with the proteasome inhibitor MG132 results in a marked decrease of the Nox4 protein under both normoxic and hypoxic conditions, indicating that the proteasome pathway does not play a major role in Nox4 degradation. The decrease is partially restored by the autophagy inhibitor 3-methyladenine. Furthermore, the Nox4 protein level is upregulated by the lysosome inhibitors bafilomycin A1 and chloroquine. Thus, in cardiomyocytes, Nox4 appears to be degraded via an autophagy-related pathway, and its suppression by hypoxia likely stabilizes Nox4, leading to upregulation of Nox4-catalyzed H2 O2 production.
Collapse
Affiliation(s)
- Shogo Matsunaga
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akira Kohda
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Sachiko Kamakura
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Junya Hayase
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Kei Miyano
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akira Shiose
- Department of Cardiovascular Surgery, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Hideki Sumimoto
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| |
Collapse
|
5
|
Pedersen K, Watt J, Maimone C, Hang H, Denys A, Schroder K, Suva LJ, Chen JR, Ronis MJJ. Deletion of NADPH oxidase 2 in chondrocytes exacerbates ethanol-mediated growth plate disruption in mice without major effects on bone architecture or gene expression. Alcohol Clin Exp Res (Hoboken) 2023; 47:2233-2247. [PMID: 38151780 DOI: 10.1111/acer.15203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Excess reactive oxygen species generated by NADPH oxidase 2 (Nox2) in response to ethanol exposure mediate aspects of skeletal toxicity including increased osteoclast differentiation and activity. Because perturbation of chondrocyte differentiation in the growth plate by ethanol could be prevented by dietary antioxidants, we hypothesized that Nox2 in the growth plate was involved in ethanol-associated reductions in longitudinal bone growth. METHODS Nox2 conditional knockout mice were generated, where the essential catalytic subunit of Nox2, cytochrome B-245 beta chain (Cybb), is deleted in chondrocytes using a Cre-Lox model with Cre expressed from the collagen 2a1 promoter (Col2a1-Cre). Wild-type and Cre-Lox mice were fed an ethanol Lieber-DeCarli-based diet or pair-fed a control diet for 8 weeks. RESULTS Ethanol treatment significantly reduced the number of proliferating chondrocytes in the growth plate, enhanced bone marrow adiposity, shortened femurs, reduced body length, reduced cortical bone volume, and decreased mRNA levels of a number of osteoblast and chondrocyte genes. Conditional knockout of Nox2 enzymatic activity in chondrocytes did not consistently prevent any ethanol effects. Rather, knockout mice had fewer proliferating chondrocytes than wild-type mice in both the ethanol- and control-fed animals. Additional analysis of tibia samples from Nox4 knockout mice showed that loss of Nox4 activity also reduced the number of proliferating chondrocytes and altered chondrocyte size in the growth plate. CONCLUSIONS Although Nox enzymatic activity regulates growth plate development, ethanol-associated disruption of the growth plate morphology is independent of ethanol-mediated increases in Nox2 activity.
Collapse
Affiliation(s)
- K Pedersen
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| | - J Watt
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| | - C Maimone
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| | - H Hang
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| | - A Denys
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| | - K Schroder
- Institute of Physiology I, Goethe-University, Frankfurt, Germany
| | - L J Suva
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA
| | - J-R Chen
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - M J J Ronis
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana, USA
| |
Collapse
|
6
|
Liao Y, Huang J, Wang Z, Yang Z, Shu Y, Gan S, Wang Z, Lu W. The phosphokinase activity of IRE1ɑ prevents the oxidative stress injury through miR-25/ Nox4 pathway after ICH. CNS Neurosci Ther 2023. [PMID: 37994671 DOI: 10.1111/cns.14537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/30/2023] [Accepted: 11/06/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress and oxidative stress are the major pathologies encountered after intracerebral hemorrhage (ICH). Inositol-requiring enzyme-1 alpha (IRE1α) is the most evolutionarily conserved ER stress sensor, which plays a role in monitoring and responding to the accumulation of unfolded/misfolded proteins in the ER lumen. Recent studies have shown that ER stress is profoundly related to oxidative stress in physiological or pathological conditions. The purpose of this study was to investigate the role of IRE1α in oxidative stress and the potential mechanism. METHODS A mouse model of ICH was established by autologous blood injection. The IRE1α phosphokinase inhibitor KIRA6 was administrated intranasally at 1 h after ICH, antagomiR-25 and agomiR-25 were injected intraventricularly at 24 h before ICH. Western blot analysis, RT-qPCR, immunofluorescence staining, hematoma volume, neurobehavioral tests, dihydroethidium (DHE) staining, H2 O2 content, brain water content, body weight, Hematoxylin and Eosin (HE) staining, Nissl staining, Morris Water Maze (MWM) and Elevated Plus Maze (EPM) were performed. RESULTS Endogenous phosphorylated IRE1α (p-IRE1α), miR-25-3p, and Nox4 were increased in the ICH model. Administration of KIRA6 downregulated miR-25-3p expression, upregulated Nox4 expression, promoted the level of oxidative stress, increased hematoma volume, exacerbated brain edema and neurological deficits, reduced body weight, aggravated spatial learning and memory deficits, and increased anxiety levels. Then antagomiR-25 further upregulated the expression of Nox4, promoted the level of oxidative stress, increased hematoma volume, exacerbated brain edema and neurological deficits, whereas agomiR-25 reversed the effects promoted by KIRA6. CONCLUSION The IRE1α phosphokinase activity is involved in the oxidative stress response through miR-25/Nox4 pathway in the mouse ICH brain.
Collapse
Affiliation(s)
- Yuhui Liao
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
- Medical College, Sichuan University of Arts and Science, Dazhou, China
| | - Juan Huang
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Zhenhua Wang
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Zhengyu Yang
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Yue Shu
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Shengwei Gan
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Zhixu Wang
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Weitian Lu
- Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Basic Medical College, Chongqing Medical University, Chongqing, China
| |
Collapse
|
7
|
Zhang Y, Shan M, Ding X, Sun H, Qiu F, Shi L. Maternal exercise represses Nox4 via SIRT1 to prevent vascular oxidative stress and endothelial dysfunction in SHR offspring. Front Endocrinol (Lausanne) 2023; 14:1219194. [PMID: 37501791 PMCID: PMC10368947 DOI: 10.3389/fendo.2023.1219194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
Maternal exercise during pregnancy has emerged as a potentially promising approach to protect offspring from cardiovascular disease, including hypertension. Although endothelial dysfunction is involved in the pathophysiology of hypertension, limited studies have characterized how maternal exercise influences endothelial function of hypertensive offspring. In this study, pregnant spontaneously hypertensive rats and Wistar-Kyoto rats were assigned either to a sedentary lifestyle or to swimming training daily, and fetal histone deacetylase-mediated epigenetic modification and offspring vascular function of mesenteric arteries were analyzed. Maternal exercise ameliorated the impairment of acetylcholine-induced vasodilation without affecting sodium nitroprusside-induced vasodilation in mesenteric arteries from the hypertensive offspring. In accordance, maternal exercise reduced NADPH oxidase-4 (Nox4) protein to prevent the loss of nitric oxide generation and increased reactive oxygen species production in mesenteric arteries of hypertensive offspring. We further found that maternal exercise during pregnancy upregulated vascular SIRT1 (sirtuin 1) expression, leading to a low level of H3K9ac (histone H3 lysine 9 acetylation), resulting in the transcriptional downregulation of Nox4 in mesenteric arteries of hypertensive fetuses. These findings show that maternal exercise alleviates oxidative stress and the impairment of endothelium-dependent vasodilatation via SIRT1-regulated deacetylation of Nox4, which might contribute to improved vascular function in hypertensive offspring.
Collapse
Affiliation(s)
- Yanyan Zhang
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
- Laboratory of Sports Stress and Adaptation of General Administration of Sport, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| | - Meiling Shan
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Xiaozhen Ding
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Hualing Sun
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Fang Qiu
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Lijun Shi
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
- Laboratory of Sports Stress and Adaptation of General Administration of Sport, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| |
Collapse
|
8
|
Wang D, Li J, Luo G, Zhou J, Wang N, Wang S, Zhao R, Cao X, Ma Y, Liu G, Hao L. Nox4 as a novel therapeutic target for diabetic vascular complications. Redox Biol 2023; 64:102781. [PMID: 37321060 PMCID: PMC10363438 DOI: 10.1016/j.redox.2023.102781] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/03/2023] [Accepted: 06/08/2023] [Indexed: 06/17/2023] Open
Abstract
Diabetic vascular complications can affect both microvascular and macrovascular. Diabetic microvascular complications, such as diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, and diabetic cardiomyopathy, are believed to be caused by oxidative stress. The Nox family of NADPH oxidases is a significant source of reactive oxygen species and plays a crucial role in regulating redox signaling, particularly in response to high glucose and diabetes mellitus. This review aims to provide an overview of the current knowledge about the role of Nox4 and its regulatory mechanisms in diabetic microangiopathies. Especially, the latest novel advances in the upregulation of Nox4 that aggravate various cell types within diabetic kidney disease will be highlighted. Interestingly, this review also presents the mechanisms by which Nox4 regulates diabetic microangiopathy from novel perspectives such as epigenetics. Besides, we emphasize Nox4 as a therapeutic target for treating microvascular complications of diabetes and summarize drugs, inhibitors, and dietary components targeting Nox4 as important therapeutic measures in preventing and treating diabetic microangiopathy. Additionally, this review also sums up the evidence related to Nox4 and diabetic macroangiopathy.
Collapse
Affiliation(s)
- Dongxia Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China; Department of Nutrition and Food Hygiene, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, China
| | - Jiaying Li
- Department of Nutrition and Food Hygiene, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, China
| | - Gang Luo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Juan Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Ning Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Shanshan Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Rui Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Xin Cao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China
| | - Yuxia Ma
- Department of Nutrition and Food Hygiene, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, China
| | - Gang Liu
- Department of Cardiology, The First Hospital of Hebei Medical University, Hebei International Joint Research Center for Structural Heart Disease, Hebei Key Laboratory of Cardiac Injury Repair Mechanism Study, Shijiazhuang, 050000, China.
| | - Liping Hao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China.
| |
Collapse
|
9
|
Xie J, Lv H, Liu X, Xia Z, Li J, Hong E, Ding B, Zhang W, Chen Y. Nox4-and Tf/TfR-mediated peroxidation and iron overload exacerbate neuronal ferroptosis after intracerebral hemorrhage: Involvement of EAAT3 dysfunction. Free Radic Biol Med 2023; 199:67-80. [PMID: 36805044 DOI: 10.1016/j.freeradbiomed.2023.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023]
Abstract
Intracerebral hemorrhage (ICH) induces high mortality and disability. Neuronal death is the principal factor to unfavourable prognosis in ICH. However, the mechanisms underlying this association remain unclear. In this study, we investigated the molecular mechanisms by which neuronal ferroptosis occurs after ICH and whether the use of corresponding modulators can inhibit neuronal death and improve early outcomes in a rat ICH model. Our findings indicated that Nox4 and TF/TfR were upregulated in the perihematomal tissues of ICH rats. Oxidative stress and iron overload induced by Nox4 and TF/TfR promoted neuronal ferroptosis post-ICH. In contrast, application of Nox4-siRNA and the deferoxamine (DFO) attenuated peroxidation and iron deposition in the hemorrhagic brain, alleviated neuronal ferroptosis, and improved sensorimotor function in ICH rats. Additionally, our findings indicated that the post-ICH neuronal reduced glutathione (GSH) depletion were not related to dysfunctional glutamine delivery in astrocytes but rather to downregulation of EAAT3 due to lipid peroxidation-induced dysfunction in the neuronal membrane. These findings indicate that ferroptosis is involved in neuronal death in model rats with collagenase-induced ICH. Oxidative stress and iron overload induced by Nox4 and TF/TfR exacerbate ferroptosis after ICH, while Nox4 downregulation and iron chelation exert neuroprotective effects. The present results highlight the cysteine importer EAAT3 as a potential biomarker of ferroptosis and provide insight into the neuronal death process that occurs following ICH, which may aid in the development of translational treatment strategies for ICH.
Collapse
Affiliation(s)
- Jiayu Xie
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, The First People's Hospital of Changde City of Xiangya Medical College of South Central University, Changde, 415000, China
| | - Hongzhu Lv
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, Dalian Municipal Central Hospital, Dalian, 116089, China
| | - Xuanbei Liu
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Zhennan Xia
- Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China
| | - Jiangwei Li
- Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China
| | - Enhui Hong
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Boyun Ding
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Wenying Zhang
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Yizhao Chen
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China.
| |
Collapse
|
10
|
Bouraoui A, Louzada RA, Aimeur S, Waeytens J, Wien F, My-Chan Dang P, Bizouarn T, Dupuy C, Baciou L. New insights in the molecular regulation of the NADPH oxidase 2 activity: Negative modulation by Poldip2. Free Radic Biol Med 2023; 199:113-125. [PMID: 36828293 DOI: 10.1016/j.freeradbiomed.2023.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/06/2023] [Accepted: 02/21/2023] [Indexed: 02/24/2023]
Abstract
Poldip2 was shown to be involved in oxidative signaling to ensure certain biological functions. It was proposed that, in VSMC, by interaction with the Nox4-associated membrane protein p22phox, Poldip2 stimulates the level of reactive oxygen species (ROS) production. In vitro, with fractionated membranes from HEK393 cells over-expressing Nox4, we confirmed the up-regulation of NADPH oxidase 4 activity by the recombinant and purified Poldip2. Besides Nox4, the Nox1, Nox2, or Nox3 isoforms are also established partners of the p22phox protein raising the question of their regulation by Poldip2 and of the effect in cells expressing simultaneously different Nox isoforms. In this study, we have addressed this issue by investigating the potential regulatory role of Poldip2 on NADPH oxidase 2, present in phagocyte cells. Unexpectedly, the effect of Poldip2 on phagocyte NADPH oxidase 2 was opposite to that observed on NADPH oxidase 4. Using membranes from circulating resting neutrophils, the ROS production rate of NADPH oxidase 2 was down-regulated by Poldip2 (2.5-fold). The down-regulation effect could not be correlated to the interaction of Poldip2 with p22phox but rather, to the interaction of Poldip2 with the p47phox protein, one of the regulatory proteins of the phagocyte NADPH oxidase. Our results show that the interaction of Poldip2 with p47phox constitutes a novel regulatory mechanism that can negatively modulate the activity of NADPH oxidase 2 by trapping the so-called "adaptor" subunit of the complex. Poldip2 could act as a tunable switch capable of specifically regulating the activities of NADPH oxidases. This selective regulatory role of Poldip2, positive for Nox4 or negative for Nox2 could orchestrate the level and the type of ROS generated by Nox enzymes in the cells.
Collapse
Affiliation(s)
- Aicha Bouraoui
- Université Paris-Saclay, Institut de Chimie Physique UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Ruy Andrade Louzada
- Université Paris Saclay, UMR 9019 CNRS, Gustave Roussy, 94800, Villejuif, France
| | - Sana Aimeur
- Université Paris-Saclay, Institut de Chimie Physique UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Jehan Waeytens
- Université Paris-Saclay, Institut de Chimie Physique UMR 8000, CNRS, 91405, Orsay Cedex, France; Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, Bruxelles, Belgium
| | - Frank Wien
- DISCO beamline, Synchrotron SOLEIL, Campus Paris-Saclay, 91192, Gif-sur-Yvette Cedex, France
| | - Pham My-Chan Dang
- INSERM U1149, CNRS ERL8252, Centre de Recherche sur l'Inflammation, Université de Paris, Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, F-75018, France
| | - Tania Bizouarn
- Université Paris-Saclay, Institut de Chimie Physique UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Corinne Dupuy
- Université Paris Saclay, UMR 9019 CNRS, Gustave Roussy, 94800, Villejuif, France
| | - Laura Baciou
- Université Paris-Saclay, Institut de Chimie Physique UMR 8000, CNRS, 91405, Orsay Cedex, France.
| |
Collapse
|
11
|
Yamanaka K, Nakamura K, Shibahara T, Takashima M, Takaki H, Hidaka M, Komori M, Yoshikawa Y, Wakisaka Y, Ago T, Kitazono T. Deletion of Nox4 enhances remyelination following cuprizone-induced demyelination by increasing phagocytic capacity of microglia and macrophages in mice. Glia 2023; 71:541-559. [PMID: 36321558 DOI: 10.1002/glia.24292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 10/15/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022]
Abstract
NOX4 is a major reactive oxygen species-producing enzyme that modulates cell stress responses. We here examined the effect of Nox4 deletion on demyelination-remyelination, the most common pathological change in the brain. We used a model of cuprizone (CPZ)-associated demyelination-remyelination in wild-type and Nox4-deficient (Nox4-/- ) mice. While the CPZ-induced demyelination in the corpus callosum after 4 weeks of CPZ intoxication was slightly less pronounced in Nox4-/- mice than that in wild-type mice, remyelination following CPZ withdrawal was significantly enhanced in Nox4-/- mice with an increased accumulation of IBA1-positive microglia/macrophages in the demyelinating corpus callosum. Consistently, locomotor function, as assessed by the beam walking test, was significantly better during the remyelination phase in Nox4-/- mice. Nox4 deletion did not affect autonomous growth of primary-culture oligodendrocyte precursor cells. Although Nox4 expression was higher in cultured macrophages than in microglia, Nox4-/- microglia and macrophages both showed enhanced phagocytic capacity of myelin debris and produced increased amounts of trophic factors upon phagocytosis. The expression of trophic factors was higher, in parallel with the accumulation of IBA1-positive cells, in the corpus callosum in Nox4-/- mice than that in wild-type mice. Nox4 deletion suppressed phagocytosis-induced increase in mitochondrial membrane potential, enhancing phagocytic capacity of macrophages. Treatment with culture medium of Nox4-/- macrophages engulfing myelin debris, but not that of Nox4-/- astrocytes, enhanced cell growth and expression of myelin-associated proteins in cultured oligodendrocyte precursor cells. Collectively, Nox4 deletion promoted remyelination after CPZ-induced demyelination by enhancing microglia/macrophage-mediated clearance of myelin debris and the production of trophic factors leading to oligodendrogenesis.
Collapse
Affiliation(s)
- Kei Yamanaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniyuki Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoya Shibahara
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masamitsu Takashima
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hayato Takaki
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaoki Hidaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Motohiro Komori
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoji Yoshikawa
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinobu Wakisaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tetsuro Ago
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
12
|
Kim TW. Nodakenin Induces ROS-Dependent Apoptotic Cell Death and ER Stress in Radioresistant Breast Cancer. Antioxidants (Basel) 2023; 12:antiox12020492. [PMID: 36830050 PMCID: PMC9952086 DOI: 10.3390/antiox12020492] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Angelica gigas exerts powerful anti-tumor and anti-cancer effects in various cancer cell types. However, there have been few studies regarding the anti-cancer effect of nodakenin, a bioactive compound of Angelica gigas, in vivo and in vitro on breast cancers. I found that nodakenin, in a concentration-dependent manner, inhibits breast cancer cell viability and decreases the tumor volume in mice. Additionally, nodakenin induces caspase-3-dependent apoptosis in breast cancer cells; however, the combination of Z-VAD-FMK and nodakenin suppresses the caspase-3-dependent apoptotic cell death. Furthermore, nodakenin mediates apoptotic cell death via the PERK-mediated signaling pathway and calcium (Ca2+) release, and nodakenin combined with thapsigargin induces synergistic cell death by inhibiting sarco/endoplasmic reticulum (ER) Ca2+-ATPase. However, knockdown of PERK or CHOP inhibits Ca2+ generation and caspase-dependent apoptosis in nodakenin-treated breast cancer cells. Nodakenin induces ROS and Ca2+ generation, ER stress, and apoptotic cell death; however, the knockdown of Nox4 inhibits ROS generation and ER stress- and caspase-dependent apoptotic cell death. In addition, nodakenin combined with radiation overcomes radioresistance in radioresistant breast cancer cells by suppressing epithelial-mesenchymal transition phenotypes, including the decrease in E-cadherin and the increase in N-cadherin and vimentin. Therefore, these findings indicate that nodakenin may be a novel therapeutic strategy for breast cancers.
Collapse
Affiliation(s)
- Tae Woo Kim
- Department of Biopharmaceutical Engineering, Dongguk University-WISE, 123 Dongdae-ro, Gyeongju 38066, Gyeongbuk, Republic of Korea
| |
Collapse
|
13
|
Kim TW, Lee HG. 6-Shogaol Overcomes Gefitinib Resistance via ER Stress in Ovarian Cancer Cells. Int J Mol Sci 2023; 24:ijms24032639. [PMID: 36768961 PMCID: PMC9916959 DOI: 10.3390/ijms24032639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/03/2023] Open
Abstract
In women, ovary cancer is already the fifth leading cause of mortality worldwide. The use of cancer therapies, such as surgery, radiotherapy, and chemotherapy, may be a powerful anti-cancer therapeutic strategy; however, these therapies still have many problems, including resistance, toxicity, and side effects. Therefore, natural herbal medicine has the potential to be used for cancer therapy because of its low toxicity, fewer side effects, and high success. This study aimed to investigate the anti-cancer effect of 6-shogaol in ovarian cancer cells. 6-shogaol induces ER stress and cell death via the reduction in cell viability, the increase in LDH cytotoxicity, caspase-3 activity, and Ca2+ release, and the upregulation of GRP78, p-PERK, p-eIF2α, ATF-4, CHOP, and DR5. Moreover, 6-shogaol treatment medicates endoplasmic reticulum (ER) stress and cell death by upregulating Nox4 and releasing ROS. The knockdown of Nox4 in ovarian cancer cells inhibits ER stress and cell death by blocking the reduction in cell viability and the enhancement of LDH cytotoxicity, caspase-3 activity, Ca2+, and ROS release. In gefitinib-resistant ovarian cancer cells, A2780R and OVCAR-3R, 6-shogaol/gefitinib overcomes gefitinib resistance by inhibiting EMT phenomena such as the reduction in E-cadherin, and the increase in N-cadherin, vimentin, Slug, and Snail. Therefore, our results suggest that 6-shogaol exerts a potential anti-cancer effect in ovarian cancer and combination treatment with 6-shogaol and gefitinib may provide a novel anti-tumor therapeutic strategy in gefitinib-resistant ovarian cancer.
Collapse
Affiliation(s)
- Tae Woo Kim
- Department of Biopharmaceutical Engineering, Dongguk University-WISE, Gyeongju 38066, Republic of Korea
- Correspondence:
| | - Hee Gu Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| |
Collapse
|
14
|
Liu XH, Pan JP, Bauman WA, Cardozo C. Myostatin inhibits insulin-like growth factor 1-dependent citrate secretion and osteogenesis via nicotinamide adenine dinucleotide phosphate oxidase-4 in a mouse mesenchymal stem cell line. Ann N Y Acad Sci 2022; 1517:203-212. [PMID: 36072988 DOI: 10.1111/nyas.14894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Citrate is an indispensable component of bone. Reduced levels of citrate in bone and serum are reported in the elderly and in osteoporosis patients. Myostatin (Mstn) is implicated in skeletal homeostasis, but its effects on osteogenesis remain incompletely understood. Nox4 has critical roles in bone homeostasis. TGF-β/Mstn-associated Smad2/3 signaling has been linked to Nox4 expression. Insulin-like growth factor (IGF-1) has been shown to counteract many regulatory effects of Mstn. However, the crosstalk among Mstn, IGF-1, and Nox4 is not well understood; the interactive effects of those factors on citrate secretion, osteogenic differentiation, and bone remodeling remain unclear. In this study, we demonstrated that osteogenic differentiation induced an IGF-1-dependent upregulation of citrate secretion that was suppressed by Mstn. Inhibition of Nox4 prevented Mstn-induced reduction of citrate secretion. In addition, Mstn reduced bone nodule formation; these changes were prevented by Nox4 inhibition. Moreover, Mstn increased the ratio of RANKL to OPG mRNAs to favor osteoclast activation. These results indicate that Mstn negatively regulates osteogenesis by increasing levels of Nox4, which reduced IGF-1 expression, citrate secretion, and bone mineralization while also altering the RANKL to OPG ratio. These findings provide new and highly relevant insights into the osseous effects of myostatin.
Collapse
Affiliation(s)
- Xin-Hua Liu
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peter VA Medical Center, Bronx, New York, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jiang Ping Pan
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peter VA Medical Center, Bronx, New York, USA
| | - William A Bauman
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peter VA Medical Center, Bronx, New York, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Medical Service, James J. Peter VA Medical Center, Bronx, New York, USA
- Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Bone Program, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christopher Cardozo
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peter VA Medical Center, Bronx, New York, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Medical Service, James J. Peter VA Medical Center, Bronx, New York, USA
- Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Bone Program, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| |
Collapse
|
15
|
Hahner F, Moll F, Warwick T, Hebchen DM, Buchmann GK, Epah J, Abplanalp W, Schader T, Günther S, Gilsbach R, Brandes RP, Schröder K. Nox4 promotes endothelial differentiation through chromatin remodeling. Redox Biol 2022; 55:102381. [PMID: 35810713 PMCID: PMC9287364 DOI: 10.1016/j.redox.2022.102381] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 06/20/2022] [Indexed: 01/09/2023] Open
Abstract
RATIONALE Nox4 is a constitutively active NADPH oxidase that constantly produces low levels of H2O2. Thereby, Nox4 contributes to cell homeostasis and long-term processes, such as differentiation. The high expression of Nox4 seen in endothelial cells contrasts with the low abundance of Nox4 in stem cells, which are accordingly characterized by low levels of H2O2. We hypothesize that Nox4 is a major contributor to endothelial differentiation, is induced during the process of differentiation, and facilitates homeostasis of the resulting endothelial cells. OBJECTIVE To determine the role of No×4 in differentiation of murine inducible pluripotent stem cells (miPSC) into endothelial cells (ECs). METHODS AND RESULTS miPSC, generated from mouse embryonic wildtype (WT) and Nox4-/- fibroblasts, were differentiated into endothelial cells (miPSC-EC) by stimulation with BMP4 and VEGF. During this process, Nox4 expression increased and knockout of Nox4 prolonged the abundance of pluripotency markers, while expression of endothelial markers was delayed in differentiating Nox4-depleted iPSCs. Eventually, angiogenic capacity of iPSC-ECs is reduced in Nox4 deficient cells, indicating that an absence of Nox4 diminishes stability of the reached phenotype. As an underlying mechanism, we identified JmjD3 as a redox target of Nox4. iPSC-ECs lacking Nox4 display a lower nuclear abundance of the histone demethylase JmjD3, resulting in an increased triple methylation of histone 3 (H3K27me3), which serves as a repressive mark for several genes involved in differentiation. CONCLUSIONS Nox4 promotes differentiation of miPSCs into ECs by oxidation of JmjD3 and subsequent demethylation of H3K27me3, which forced endothelial differentiation and stability.
Collapse
Affiliation(s)
- F Hahner
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - F Moll
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - T Warwick
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - D M Hebchen
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - G K Buchmann
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - J Epah
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - W Abplanalp
- Institute for Cardiovascular Regeneration, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - T Schader
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - S Günther
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - R Gilsbach
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - R P Brandes
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - K Schröder
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany.
| |
Collapse
|
16
|
Zhou Z, Ying C, Zhou X, Shi Y, Xu J, Zhu Y, Wang M, Li Y, Li X, Xiang J. Aerobic exercise training alleviates renal injury in db/db mice through inhibiting Nox4-mediated NLRP3 inflammasome activation. Exp Gerontol 2022; 168:111934. [PMID: 36007721 DOI: 10.1016/j.exger.2022.111934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/14/2022] [Accepted: 08/18/2022] [Indexed: 11/04/2022]
Abstract
Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease, with few therapeutic options available to slow its progression. Aerobic exercise training is an effective strategy for diabetes mellitus and its complications' prevention and treatment. The purpose of this study was to determine the effects of aerobic exercise training on diabetic kidney injury in db/db mice and to characterize the mechanism underlying the renal protective effects. The db/db mice were exercised 5 days a week for 60 min each day for 8 weeks at a speed of 5.6 m/min, after which renal function, morphology, oxidative stress, inflammation, fibrosis, and the expression of the Nox4/ROS/NF-κB/NLRP3 signaling pathway-related protein were assessed. Our results showed that aerobic exercise training significantly reduced body weight and microalbuminuria, improved renal function, and attenuated renal pathological changes in db/db mice independent of hyperglycemic state. Aerobic exercise training was also found to significantly improve oxidative stress and inflammation in the kidneys of db/db mice by decreasing the activity of complex I, the levels of MDA, 8-OHdG, Nox4, ROS, TNF-α, MCP-1, IL-6, and IL-18, increasing the activities of SOD and GSH-Px, the expression of klotho and NPHS2, and decreasing the phosphorylation of NF-κB p65 and IκBα, as well as the expression of NLRP3, ASC, caspase-1 p20, and IL-1β. Additionally, aerobic exercise training decreased TGF-β, collagen I, collagen IV, and α-SMA expression, thereby slowing the progression of kidney fibrosis in db/db mice. In conclusion, aerobic exercise training effectively reduces oxidative stress, inflammation, and renal fibrosis by modulating the Nox4/ROS/NF-κB/NLRP3 signaling pathway, implying that aerobic exercise training has significant potential to protect diabetic kidney injury and should be given more emphasis in DKD treatment.
Collapse
Affiliation(s)
- Zhongyuan Zhou
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China; Department of Pain, Lianyungang Maternal and Child Health Hospital, Lianyungang 222000, PR China
| | - Changjiang Ying
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Xiaoyan Zhou
- Laboratory of Morphology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Yuanyuan Shi
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Jian Xu
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Yandong Zhu
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Meng Wang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Yan Li
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China
| | - Xiaofei Li
- Department of Sports Medicine, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222002, PR China
| | - Jie Xiang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China; Department of Rehabilitation, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China.
| |
Collapse
|
17
|
Demircan MB, Schnoeder TM, Mgbecheta PC, Schröder K, Böhmer FD, Heidel FH. Context-specific effects of NOX4 inactivation in acute myeloid leukemia (AML). J Cancer Res Clin Oncol 2022; 148:1983-1990. [PMID: 35348887 PMCID: PMC9293823 DOI: 10.1007/s00432-022-03986-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE Oxidative stress has been linked to initiation and progression of cancer and recent studies have indicated a potential translational role regarding modulation of ROS in various cancers, including acute myeloid leukemia (AML). Detailed understanding of the complex machinery regulating ROS including its producer elements in cancer is required to define potential translational therapeutic use. Based on previous studies in acute myeloid leukemia (AML) models, we considered NADPH oxidase (NOX) family members, specifically NOX4 as a potential target in AML. METHODS Pharmacologic inhibition and genetic inactivation of NOX4 in murine and human models of AML were used to understand its functional role. For genetic inactivation, CRISPR-Cas9 technology was used in human AML cell lines in vitro and genetically engineered knockout mice for Nox4 were used for deletion of Nox4 in hematopoietic cells via Mx1-Cre recombinase activation. RESULTS Pharmacologic NOX inhibitors and CRISPR-Cas9-mediated inactivation of NOX4 and p22-phox (an essential NOX component) decreased proliferative capacity and cell competition in FLT3-ITD-positive human AML cells. In contrast, conditional deletion of Nox4 enhanced the myeloproliferative phenotype of an FLT3-ITD induced knock-in mouse model. Finally, Nox4 inactivation in normal hematopoietic stem and progenitor cells (HSPCs) caused a minor reduction in HSC numbers and reconstitution capacity. CONCLUSION The role of NOX4 in myeloid malignancies appears highly context-dependent and its inactivation results in either enhancing or inhibitory effects. Therefore, targeting NOX4 in FLT3-ITD positive myeloid malignancies requires additional pre-clinical assessment.
Collapse
Affiliation(s)
- Muhammed Burak Demircan
- Innere Medizin II, Hämatologie und Onkologie, Jena University Hospital, Jena, Germany.,Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany.,Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany.,Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Hessen, Germany
| | - Tina M Schnoeder
- Innere Medizin C, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Peter C Mgbecheta
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Katrin Schröder
- Institute for Cardiovascular Physiology, Goethe University, Frankfurt am Main, Germany
| | - Frank-D Böhmer
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Florian H Heidel
- Innere Medizin II, Hämatologie und Onkologie, Jena University Hospital, Jena, Germany. .,Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany. .,Innere Medizin C, Universitätsmedizin Greifswald, Greifswald, Germany.
| |
Collapse
|
18
|
He X, Liu J, Gu F, Chen J, Lu YW, Ding J, Guo H, Nie M, Kataoka M, Lin Z, Hu X, Chen H, Liao X, Dong Y, Min W, Deng ZL, Pu WT, Huang ZP, Wang DZ. Cardiac CIP protein regulates dystrophic cardiomyopathy. Mol Ther 2022; 30:898-914. [PMID: 34400329 DOI: 10.1016/j.ymthe.2021.08.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/24/2021] [Accepted: 08/08/2021] [Indexed: 02/04/2023] Open
Abstract
Heart failure is a leading cause of fatality in Duchenne muscular dystrophy (DMD) patients. Previously, we discovered that cardiac and skeletal-muscle-enriched CIP proteins play important roles in cardiac function. Here, we report that CIP, a striated muscle-specific protein, participates in the regulation of dystrophic cardiomyopathy. Using a mouse model of human DMD, we found that deletion of CIP leads to dilated cardiomyopathy and heart failure in young, non-syndromic mdx mice. Conversely, transgenic overexpression of CIP reduces pathological dystrophic cardiomyopathy in old, syndromic mdx mice. Genome-wide transcriptome analyses reveal that molecular pathways involving fibrogenesis and oxidative stress are affected in CIP-mediated dystrophic cardiomyopathy. Mechanistically, we found that CIP interacts with dystrophin and calcineurin (CnA) to suppress the CnA-Nuclear Factor of Activated T cells (NFAT) pathway, which results in decreased expression of Nox4, a key component of the oxidative stress pathway. Overexpression of Nox4 accelerates the development of dystrophic cardiomyopathy in mdx mice. Our study indicates CIP is a modifier of dystrophic cardiomyopathy and a potential therapeutic target for this devastating disease.
Collapse
|
19
|
Xun Y, Zhou P, Yang Y, Li C, Zhang J, Hu H, Qin B, Zhang Z, Wang Q, Lu Y, Wang S. Role of Nox4 in High Calcium-Induced Renal Oxidative Stress Damage and Crystal Deposition. Antioxid Redox Signal 2022; 36:15-38. [PMID: 34435888 DOI: 10.1089/ars.2020.8159] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Aims: We aimed at exploring the role of nicotinamide adenine dinucleotide phosphate oxidase subunit 4 (Nox4) in the regulation of hypercalciuria-induced renal oxidative damage and crystal depositions. Results: High calcium activated Nox4 expression through protein kinase C (PKC). Downregulation of Nox4 expression attenuated hypercalciuria-induced osteoblast-associated protein expression, oxidative stress injury, and crystal deposition in rat kidneys of 1,25-dihydroxyvitamin D3 (VitD) urolithiasis model. Further, calcium-induced activation of mitogen-activated protein kinase (MAPK), overexpression of osteoblast-associated protein, oxidative stress injury, apoptosis, and calcium salt deposition in normal rat kidney epithelial-like (NRK-52E) cells were reversed by downregulating Nox4 expression but were enhanced by upregulating Nox4 expression in vitro. Moreover, calcium-induced increases of osteoblast-associated protein expression were attenuated by the c-Jun-N-terminal kinase (JNK) and extracellular signal-regulated kinase (ERK) inhibitors. Innovation: Our results demonstrated the effect of Nox4 in the pathological process of kidney stones in in vitro and in vivo studies for the first time. Calcium aggravates renal oxidative stress injury and crystal deposition by activating the Nox4-related reactive oxygen species (ROS)-ERK/JNK pathway in the rat kidney. This study is expected to provide a new theoretical basis for the prevention and treatment of kidney stones. Conclusion: Nox4-derived ROS induced by calcium through PKC caused oxidative stress damage and apoptosis in renal tubular epithelial cells; in addition, Nox4-derived ROS induced by calcium mediated abnormal activation of the bone morphogenetic protein 2 (BMP2) signaling pathway through the MAPK signaling pathway, which induced renal tubular epithelial cells to transdifferentiate into osteoblast-like cells, resulting in the formation of a kidney stone. Antioxid. Redox Signal. 36, 15-38.
Collapse
Affiliation(s)
- Yang Xun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Peng Zhou
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuanyuan Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Cong Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jiaqiao Zhang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Henglong Hu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Baolong Qin
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Zongbiao Zhang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Qing Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuchao Lu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| |
Collapse
|
20
|
Pan W, Zheng L, Gao J, Ye L, Chen Z, Liu S, Pan B, Fang J, Lai H, Zhang Y, Ni K, Lou C, He D. SIS3 suppresses osteoclastogenesis and ameliorates bone loss in ovariectomized mice by modulating Nox4-dependent reactive oxygen species. Biochem Pharmacol 2022; 195:114846. [PMID: 34801525 DOI: 10.1016/j.bcp.2021.114846] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/16/2021] [Accepted: 11/16/2021] [Indexed: 11/23/2022]
Abstract
Osteoporosis is a metabolic disorder of reduced bone mass, accompanied by the deterioration of the bone microstructure, resulting in increased brittleness and easy fracture. Its pathogenesis can be explained by mainly excessive osteoclast formation or bone resorption hyperfunction. Oxidative stress is intricately linked with bone metabolism, and the maturation and bone resorption of osteoclasts respond to intracellular ROS levels. SIS3 is a small-molecule compound that selectively suppresses Smad3 phosphorylation in the TGF-β/Smad signaling pathway and attenuates the ability to bind to target DNA. Several studies have reported that Smad3 plays a significant role in bone metabolism. However, whether SIS3 can modulate bone metabolism by affecting osteoclastogenesis and the specific molecular mechanisms involved remain unknown. Here, we demonstrated that SIS3 could suppress osteoclastogenesis and ameliorate bone loss in ovariectomized mice. Mechanistically, SIS3 inhibited Smad3 phosphorylation in BMMs, and the deficiency of phosphorylated Smad3 downregulated ROS production and Nox4-dependent expression during osteoclast formation, thereby blocking MAPK phosphorylation and the synthesis of downstream osteoclast marker proteins. Similarly, Nox4 plasmid transfection significantly alleviated osteoclast formation inhibited by SIS3. In addition, we identified the interaction region between Smad3 and Nox4 by ChIP and dual luciferase reporter assays. Collectively, we found that SIS3 could inhibit Smad3 phosphorylation, reduce Nox4-dependent ROS generation induced by RANKL, and prevent osteoclast differentiation and maturation, making it a promising alternative therapy for osteoporosis.
Collapse
Affiliation(s)
- Wenzheng Pan
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Lin Zheng
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Jiawei Gao
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China; Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Lin Ye
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Zhenzhong Chen
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Shijie Liu
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Bin Pan
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China; Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Jiawei Fang
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Hehuan Lai
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Yejin Zhang
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China; Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Kainai Ni
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Chao Lou
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China
| | - Dengwei He
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui 323000, Zhejiang Province, China.
| |
Collapse
|
21
|
Kuang BC, Hou SH, Zhan GJ, Wang MQ, Zhang JS, Sun KL, Wang ZH, Li QW, Gong NQ. [Effect of methyl eugenol on hypoxia/reoxygenation injury of human renal tubular epithelial cells and its mechanism]. Zhongguo Zhong Yao Za Zhi 2021; 46:6502-6510. [PMID: 34994143 DOI: 10.19540/j.cnki.cjcmm.20210918.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study aimed to investigate the effect of methyl eugenol(ME) on hypoxia/reoxygenation(H/R)-induced injury of human renal tubular epithelial HK-2 cells and its mechanism. The viability of HK-2 cells cultured with different concentrations of ME and exposed to H/R was detected by cell counting kit-8(CCK-8) assay. The effect of ME on the morphology of HK-2 cells was observed under an inverted microscope. The content of intracellular reactive oxygen species in different groups was detected after 2',7'-dichlorodihydrofluorescein diacetate(DCFH-DA) fluorescence staining. Cell apoptosis was determined by flow cytometry. Changes in mitochondrial membrane potential were monitored by JC-1 dye. The concentrations of nuclear factor erythroid 2 related factor 2(Nrf2), heme oxygenase-1(HO-1), and nicotinamide adenine dinucleotide phosphatase oxidase 4(Nox4) were measured by Western blot, followed by the assay of Nrf2 concentration changes in cytoplasm and nucleus by confocal fluorescence staining. The results showed that when the concentration of ME was 0-40 μmol·L~(-1), the activity of HK-2 cells was not affected. Compared with the model group, ME enhanced the activity of HK-2 cells and the cell morphology was normal. As revealed by further experiments, ME inhibited the release of reactive oxygen species and the decline in mitochondrial membrane potential of HK-2 cells after H/R injury, promoted Nrf2/HO-1 expression and Nrf2 translocation to the nucleus, and down-regulated the expression of Nox4, thereby significantly reducing apoptosis. This protective effect of ME could be reversed by the specific Nrf2 inhibitor ML385. These findings have preliminarily proved that ME effectively protected HK-2 cells against H/R injury, which might be related to its promotion of Nrf2/HO-1 signaling pathway and inhibition of Nox4. Such exploration on the possible mechanism of ME in the treatment of renal ischemia-reperfusion injury(IRI) and protection of organ function from the perspective of antioxidant stress has provided reference for related research on the treatment of acute kidney injury with traditional Chinese medicine.
Collapse
Affiliation(s)
- Bai-Cheng Kuang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Shuai-Heng Hou
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - G Ji Zhan
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Meng-Qin Wang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Jia-Si Zhang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Kai-Lun Sun
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Zhi-Heng Wang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Qing-Wen Li
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Nian-Qiao Gong
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| |
Collapse
|
22
|
Kim TW, Ko SG. The Herbal Formula JI017 Induces ER Stress via Nox4 in Breast Cancer Cells. Antioxidants (Basel) 2021; 10:antiox10121881. [PMID: 34942984 PMCID: PMC8698338 DOI: 10.3390/antiox10121881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/11/2021] [Accepted: 11/22/2021] [Indexed: 01/16/2023] Open
Abstract
Chemotherapy is a powerful anti-tumor therapeutic strategy; however, resistance to treatment remains a serious concern. To overcome chemoresistance, combination therapy with anticancer drugs is a potential strategy. We developed a novel herbal extract, JI017, with lower toxicity and lesser side effects. JI017 induced programmed cell death and excessive unfolded protein response through the release of intracellular reactive oxygen species (ROS) and calcium in breast cancer cells. JI017 treatment increased the expression of endoplasmic reticulum (ER) stress markers, including p-PERK, p-eIF2α, ATF4, and CHOP, via the activation of both exosomal GRP78 and cell lysate GRP78. The ROS inhibitors diphenyleneiodonium and N-acetyl cysteine suppressed apoptosis and excessive ER stress by inhibiting Nox4 in JI017-treated breast cancer cells. Furthermore, in paclitaxel-resistant breast cancer cell lines, MCF-7R and MDA-MB-231R, a combination of JI017 and paclitaxel overcame paclitaxel resistance by blocking epithelial-mesenchymal transition (EMT) processes, such as the downregulation of E-cadherin expression and the upregulation of HIF-1α, vimentin, Snail, and Slug expression. These findings suggested that JI017 exerts a powerful anti-cancer effect in breast cancer and a combination therapy of JI017 and paclitaxel may be a potential cancer therapy for paclitaxel resistant breast cancer.
Collapse
Affiliation(s)
| | - Seong-Gyu Ko
- Correspondence: ; Tel.: +82-2-961-0329; Fax: +82-2-961-1165
| |
Collapse
|
23
|
Kim J, Kim J, Lim HJ, Lee S, Bae YS, Kim J. Nox4-IGF2 Axis Promotes Differentiation of Embryoid Body Cells Into Derivatives of the Three Embryonic Germ Layers. Stem Cell Rev Rep 2021; 18:1181-1192. [PMID: 34802139 PMCID: PMC8942977 DOI: 10.1007/s12015-021-10303-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2021] [Indexed: 11/29/2022]
Abstract
Reactive oxygen species (ROS) play important roles as second messengers in a wide array of cellular processes including differentiation of stem cells. We identified Nox4 as the major ROS-generating enzyme whose expression is induced during differentiation of embryoid body (EB) into cells of all three germ layers. The role of Nox4 was examined using induced pluripotent stem cells (iPSCs) generated from Nox4 knockout (Nox4−/−) mouse. Differentiation markers showed significantly reduced expression levels consistent with the importance of Nox4-generated ROS during this process. From transcriptomic analyses, we found insulin-like growth factor 2 (IGF2), a member of a gene family extensively involved in embryonic development, as one of the most down-regulated genes in Nox4−/− cells. Indeed, addition of IGF2 to culture partly restored the differentiation competence of Nox4−/− iPSCs. Our results reveal an important signaling axis mediated by ROS in control of crucial events during differentiation of pluripotent stem cells.
Collapse
Affiliation(s)
- Jusong Kim
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea
| | - Jaewon Kim
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea.,Ewha Research Center for Systems Biology, Seoul, 03760, Korea
| | - Hee Jung Lim
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea
| | - Sanghyuk Lee
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea.,Ewha Research Center for Systems Biology, Seoul, 03760, Korea
| | - Yun Soo Bae
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea.
| | - Jaesang Kim
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea. .,Ewha Research Center for Systems Biology, Seoul, 03760, Korea.
| |
Collapse
|
24
|
Kim T, Ko SG. JI017, a Complex Herbal Medication, Induces Apoptosis via the Nox4-PERK-CHOP Axis in Ovarian Cancer Cells. Int J Mol Sci 2021; 22:12264. [PMID: 34830138 PMCID: PMC8621090 DOI: 10.3390/ijms222212264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 11/07/2021] [Accepted: 11/11/2021] [Indexed: 01/16/2023] Open
Abstract
Many anti-cancer drugs, including paclitaxel and etoposide, have originated and been developed from natural products, and traditional herbal medicines have fewer adverse effects and lesser toxicity than anti-tumor reagents. Therefore, we developed a novel complex herbal medicine, JI017, which mediates endoplasmic reticulum (ER) stress and apoptosis through the Nox4-PERK-CHOP signaling pathway in ovarian cancer cells. JI017 treatment increases the expression of GRP78, ATF4, and CHOP and the phosphorylation of PERK and eIF2α via the upregulation of Nox4. Furthermore, it increases the release of intracellular reactive oxygen species (ROS), the production of intracellular Ca2+, and the activation of exosomal GRP78 and cell lysate GRP78. Combination treatment using the sarco/endoplasmic reticulum Ca2+-ATPase inhibitor thapsigargin (TG) and JI017 reportedly induces increased ER stress and cell death in comparison to the control; however, knockdown experiments of PERK and CHOP indicated suppressed apoptosis and ER stress in JI017-treated ovarian cancer cells. Furthermore, targeting Nox4 using specific siRNA and pharmacological ROS inhibitors, including N-acetylcystein and diphenylene iodonium, blocked apoptosis and ER stress in JI017-treated ovarian cancer cells. In the radioresistant ovarian cancer model, when compared to JI017 alone, JI017 co-treatment with radiation induced greater cell death and resulted in overcoming radioresistance by inhibiting epithelial-mesenchymal-transition-related phenomena such as the reduction of E-cadherin and the increase of N-cadherin, vimentin, Slug, and Snail. These findings suggest that JI017 is a powerful anti-cancer drug for ovarian cancer treatment and that its combination treatment with radiation may be a novel therapeutic strategy for radioresistant ovarian cancer.
Collapse
Affiliation(s)
| | - Seong-Gyu Ko
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Korea;
| |
Collapse
|
25
|
Wang X, Gu H, Li K, Lin J, Zhu Y, Deng W. DPP4 inhibitor reduces portal hypertension in cirrhotic rats by normalizing arterial hypocontractility. Life Sci 2021; 284:119895. [PMID: 34450166 DOI: 10.1016/j.lfs.2021.119895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 08/08/2021] [Accepted: 08/16/2021] [Indexed: 11/17/2022]
Abstract
AIMS Dipeptidyl peptidase-4 inhibitor (DPP4i), a new antidiabetic agent, is reported to affect the progression of chronic liver diseases. The study aims to investigate the effects of DPP4i on contractile response, splanchnic hemodynamics, and portal pressure in cirrhotic rats. MATERIALS AND METHODS A rat model of carbon tetrachloride-induced cirrhosis was used in this study. Sixteen rats with cirrhosis were treated with DDP4i sitagliptin for 5 consecutive days. Portal and systemic pressures and portal blood flow were measured. Mesenteric arterioles were isolated, and concentration-response curves to norepinephrine (NE) were evaluated. The expression of NADPH oxidase (Nox)1, Nox2, Nox4, and soluble epoxide hydrolase (sEH) were detected. Reactive oxygen species (ROS) and epoxyeicosatrienoic acid (EET) levels in mesenteric arteries were also measured. KEY FINDINGS In cirrhotic rats, sitagliptin significantly reduced portal blood flow and portal pressure without effects on systemic pressure and reversed the decreased response of mesenteric arterioles to NE in an endothelium-dependent manner. Sitagliptin suppressed the increased Nox4 expression and ROS production. In vitro studies showed that Nox4 inhibitor enhanced arteriolar response to NE and reduced hydrogen peroxide (H2O2) level in cirrhotic rats. Sitagliptin also reduced EET levels and increased sEH expression of mesenteric vessels. Pre-incubation with sEH inhibitor in vitro reversed sitagliptin-induced augmentation of response to NE in cirrhotic rats. SIGNIFICANCE DPP4 inhibition by sitagliptin in vivo has beneficial effects on portal hypertension in cirrhotic rats through normalizing arterial hypocontractility. DDP4 inhibitor may be a novel strategy in the treatment of patients with cirrhosis and portal hypertension.
Collapse
Affiliation(s)
- Xinxin Wang
- Department of Radiation Oncology, The Third Hospital of Nanchang, Nanchang 330025, China
| | - Haitao Gu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Kaichun Li
- Oncology Department, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai 200434, China
| | - Jiayun Lin
- Department of General Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201999, China
| | - Yiming Zhu
- Department of General Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201999, China
| | - Wensheng Deng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 33006, China.
| |
Collapse
|
26
|
Yang Q, Gao L, Hu XW, Wang JN, Zhang Y, Dong YH, Lan HY, Meng XM. Smad3-Targeted Therapy Protects against Cisplatin-Induced AKI by Attenuating Programmed Cell Death and Inflammation via a NOX4-Dependent Mechanism. Kidney Dis (Basel) 2021; 7:372-390. [PMID: 34604344 DOI: 10.1159/000512986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
Background Transforming growth factor-β (TGF-β)/Smad signaling is the central mediator in renal fibrosis, yet its functional role in acute kidney injury (AKI) is not fully understood. Recent evidence showed that TGF-β/Smad3 may be involved in the pathogenesis of AKI, but its functional role and mechanism of action in cisplatin-induced AKI are unclear. Objectives Demonstrating that Smad3 may play certain roles in cisplatin nephropathy due to its potential effect on programmed cell death and inflammation. Methods Here, we established a cisplatin-induced AKI mouse model with Smad3 knockout mice and created stable in vitro models with Smad3 knockdown tubular epithelial cells. In addition, we tested the potential of Smad3-targeted therapy using 2 in vivo protocols - lentivirus-mediated Smad3 silencing in vivo and use of naringenin, a monomer used in traditional Chinese medicine and a natural inhibitor of Smad3. Results Disruption of Smad3 attenuated cisplatin-induced kidney injury, inflammation, and NADPH oxidase 4-dependent oxidative stress. We found that Smad3-targeted therapy protected against loss of renal function and alleviated apoptosis, RIPK-mediated necroptosis, renal inflammation, and oxidative stress in cisplatin nephropathy. Conclusions These findings show that Smad3 promotes cisplatin-induced AKI and Smad3-targeted therapy protects against this pathological process. These findings have substantial clinical relevance, as they suggest a therapeutic target for AKI.
Collapse
Affiliation(s)
- Qin Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Li Gao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xiao-Wei Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Yao Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Hui Yao Lan
- Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| |
Collapse
|
27
|
Zhao S, Wang X, Zheng X, Liang X, Wang Z, Zhang J, Zhao X, Zhuang S, Pan Q, Sun F, Shang W, Barasch J, Qiu A. Iron deficiency exacerbates cisplatin- or rhabdomyolysis-induced acute kidney injury through promoting iron-catalyzed oxidative damage. Free Radic Biol Med 2021; 173:81-96. [PMID: 34298093 PMCID: PMC9482792 DOI: 10.1016/j.freeradbiomed.2021.07.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/17/2021] [Accepted: 07/19/2021] [Indexed: 02/05/2023]
Abstract
Iron deficiency is the most common micronutrient deficiency worldwide. While iron deficiency is known to suppress embryonic organogenesis, its effect on the adult organ in the context of clinically relevant damage has not been considered. Here we report that iron deficiency is a risk factor for nephrotoxic intrinsic acute kidney injury of the nephron (iAKI). Iron deficiency exacerbated cisplatin-induced iAKI by markedly increasing non-heme catalytic iron and Nox4 protein which together catalyze production of hydroxyl radicals followed by protein and DNA oxidation, apoptosis and ferroptosis. Crosstalk between non-heme catalytic iron/Nox4 and downstream oxidative damage generated a mutual amplification cycle that facilitated rapid progression of cisplatin-induced iAKI. Iron deficiency also exacerbated a second model of iAKI, rhabdomyolysis, via increasing catalytic heme-iron. Heme-iron induced lipid peroxidation and DNA oxidation by interacting with Nox4-independent mechanisms, promoting p53/p21 activity and cellular senescence. Our data suggests that correcting iron deficiency and/or targeting specific catalytic iron species are strategies to mitigate iAKI in a wide range of patients with diverse forms of kidney injury.
Collapse
Affiliation(s)
- Shifeng Zhao
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xueqiao Wang
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xiaoqing Zheng
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xiu Liang
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhigang Wang
- Department of Kidney Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Juanlian Zhang
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xudong Zhao
- Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Shougang Zhuang
- Division of Nephrology, Department of Medicine, Brown University, Providence, USA
| | - Qiuhui Pan
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Fenyong Sun
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Wenjun Shang
- Department of Kidney Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Jonathan Barasch
- Division of Nephrology, Department of Medicine, Columbia University, New York, USA.
| | - Andong Qiu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China.
| |
Collapse
|
28
|
Wang X, Liu Z, Sun J, Song X, Bian M, Wang F, Yan F, Yu Z. Inhibition of NADPH oxidase 4 attenuates lymphangiogenesis and tumor metastasis in breast cancer. FASEB J 2021; 35:e21531. [PMID: 33769605 DOI: 10.1096/fj.202002533r] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/14/2021] [Accepted: 03/01/2021] [Indexed: 12/11/2022]
Abstract
Lymphangiogenesis is thought to contribute to promote tumor cells to enter lymphatic vessels and plant at a secondary site. Endothelial cells are the cornerstone of the generation of new lymphatic vessels. NADPH oxidase 4 (Nox4) is the most abundant one of NADPH oxidases in endothelial cells and the most studied one in relevance with cancer. Our purpose is to analyze the relationship between Nox4 and lymphangiogenesis and find out whether the newborn lymphatic vessels lead to cancer metastasis. We first explored the expression of Nox4 in lymphatic endothelial cells of primary invasive breast tumors and human normal mammary glands using GEO databases and found that Nox4 was upregulated in primary invasive breast tumors samples. In addition, its high expression correlated with lymph node metastasis in breast cancer patients. Nox4 could increase the tube formation and lymphatic vessel sprouting in a three-dimensional setting. In vivo, inhibition of Nox4 in 4T1 tumor-bearing mice could significantly decrease the tumor lymphangiogenesis and metastasis. Nox4 may increase tumor lymphangiogenesis via ROS/ERK/CCL21 pathway and attract CCR7-positive breast cancer cells to entry lymphatic vessels and distant organs. In conclusion, our results show that Nox4 is a factor that promotes lymphangiogenesis and is a potential target of antitumor metastasis.
Collapse
Affiliation(s)
- Xinzhao Wang
- Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.,Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Zhaoyun Liu
- Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.,Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Jujie Sun
- Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Xiang Song
- Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Mengxue Bian
- Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Fukai Wang
- Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| | - Feng Yan
- Department of Emergency Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.,Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Zhiyong Yu
- Breast Cancer Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People's Republic of China
| |
Collapse
|
29
|
Abstract
The epigenetic landscape describes the chromatin structure of the eukaryotic genome and is therefore the major determinant of gene transcription and hence cellular phenotype. The molecular processes which act to shape the epigenetic landscape through cellular differentiation are thus central to cellular determination and specification. In addition, cellular adaptation to (patho)-physiological stress requires dynamic and reversible chromatin remodelling. It is becoming clear that redox-dependent molecular mechanisms are important determinants of this epigenetic regulation. NADPH oxidases generate reactive oxygen species (ROS) to activate redox-dependent signalling pathways in response to extracellular and intracellular environmental cues. This mini review aims to summarise the current knowledge of the role of NADPH oxidases in redox-dependent chromatin remodelling, and how epigenetic changes might feedback and impact upon the transcriptional expression of these ROS-producing enzymes themselves. The potential physiological significance of this relationship in the control of cellular differentiation and homeostasis by Nox4, specifically, is discussed.
Collapse
Affiliation(s)
- Alison C Brewer
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Research Excellence, London, UK.
| |
Collapse
|
30
|
Liu D, Yu J, Xie J, Zhang Z, Tang C, Yu T, Chen S, Hong Z, Wang C. PbAc Triggers Oxidation and Apoptosis via the PKA Pathway in NRK-52E Cells. Biol Trace Elem Res 2021; 199:2687-2694. [PMID: 32926327 DOI: 10.1007/s12011-020-02378-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/06/2020] [Indexed: 01/28/2023]
Abstract
This study aimed to investigate the mechanism of the lead exposure-induced oxidative stress and apoptosis of renal tubular epithelial cells. We explored the effects of lead acetate (PbAc) on the oxidation and apoptosis of renal proximal tubular cells (NRK-52E) through in vitro experiments. Results showed that PbAc induced dose-dependent reactive oxygen species (ROS) accumulation in NRK-52E cells, and the activities of superoxide dismutase (SOD) and glutathione (GSH) decreased, whereas the malondialdehyde (MDA) content increased. Under the exposure of 40 and 80 μM PbAc, the mRNA level of B cell lymphoma-2 (Bcl-2) in the cells decreased, the mRNA levels of Bcl-2-associated X protein (Bax) and caspase-3 increased, and apoptosis was obvious. Furthermore, the nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4) activity was enhanced by PbAc in a dose-dependent manner. The mRNA levels of protein kinase A (PKA) were upregulated by PbAc. H-89, a PKA inhibitor, suppressed PKA activation, ROS accumulation, and Nox4 activity in NRK-52E cells. Our results indicated that PbAc potentially stimulated oxidative stress and apoptosis in NRK-52E cells by increasing Nox4-dependent ROS production via the PKA signaling pathway.
Collapse
Affiliation(s)
- Duanya Liu
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Jun Yu
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Jie Xie
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Zhaoyu Zhang
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Caoli Tang
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Tianmei Yu
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Shouni Chen
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Zhidan Hong
- Reproductive Medicine Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China
| | - Chunhong Wang
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, People's Republic of China.
| |
Collapse
|
31
|
Saengnak B, Kanla P, Samrid R, Berkban T, Mothong W, Pakdeechote P, Prachaney P. Clitoria ternatea L. extract prevents kidney damage by suppressing the Ang II/ Nox4/oxidative stress cascade in l-NAME-induced hypertension model of rats. Ann Anat 2021; 238:151783. [PMID: 34144158 DOI: 10.1016/j.aanat.2021.151783] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/16/2021] [Accepted: 05/26/2021] [Indexed: 01/20/2023]
Abstract
Clitoria ternatia L. (CT) has been reported to have anti-inflammatory and antioxidant effects. This study investigated the effect of CT aqueous flower extract on blood pressure and renal alterations in Nω-nitro-l-arginine methyl ester hydrochloride (l-NAME)-induced hypertensive rats. Male Sprague Dawley rats received l-NAME in drinking water and were treated with CT flower extract or lisinopril. CT aqueous flower extract and lisinopril alleviated l-NAME-induced hypertension (p < 0.05). Glomerular extracellular matrix accumulation, renal fibrosis, and increased serum creatinine levels were observed in l-NAME-induced hypertensive rats and attenuated by CT flower extract or lisinopril co-treatment (p < 0.05). High levels of plasma angiotensin II (Ang II) and upregulated nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4) protein expression in the kidneys induced by l-NAME were alleviated by CT flower extract or lisinopril co-treatment (p < 0.05). Furthermore, CT flower extract and lisinopril treatment reduced lipid peroxidation and elevated plasma and kidney malondialdehyde levels in l-NAME-induced hypertensive rats (p < 0.05). In conclusion, CT flower extract prevented l-NAME-induced renal injury and dysfunction in rats. The possible mechanism may be related to the suppression of Ang II-mediated Nox4 expression and the oxidative stress cascade in rats.
Collapse
Affiliation(s)
- Benchaporn Saengnak
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Pipatpong Kanla
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Rarinthorn Samrid
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Thewarid Berkban
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Wilaiwan Mothong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Poungrat Pakdeechote
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Parichat Prachaney
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
| |
Collapse
|
32
|
Buchmann GK, Schürmann C, Spaeth M, Abplanalp W, Tombor L, John D, Warwick T, Rezende F, Weigert A, Shah AM, Hansmann ML, Weissmann N, Dimmeler S, Schröder K, Brandes RP. The hydrogen-peroxide producing NADPH oxidase 4 does not limit neointima development after vascular injury in mice. Redox Biol 2021; 45:102050. [PMID: 34218201 PMCID: PMC8256285 DOI: 10.1016/j.redox.2021.102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/15/2021] [Accepted: 06/15/2021] [Indexed: 11/26/2022] Open
Abstract
Objective The NADPH oxidase Nox4 is an important source of H2O2. Nox4-derived H2O2 limits vascular inflammation and promotes smooth muscle differentiation. On this basis, the role of Nox4 for restenosis development was determined in the mouse carotid artery injury model. Methods and results Genetic deletion of Nox4 by a tamoxifen-activated Cre-Lox-system did not impact on neointima formation in the carotid artery wire injury model. To understand this unexpected finding, time-resolved single-cell RNA-sequencing (scRNAseq) from injured carotid arteries of control mice and massive-analysis-of-cDNA-ends (MACE)-RNAseq from the neointima harvested by laser capture microdissection of control and Nox4 knockout mice was performed. This revealed that resting smooth muscle cells (SMCs) and fibroblasts exhibit high Nox4 expression, but that the proliferating de-differentiated SMCs, which give rise to the neointima, have low Nox4 expression. In line with this, the first weeks after injury, gene expression was unchanged between the carotid artery neointimas of control and Nox4 knockout mice. Conclusion Upon vascular injury, Nox4 expression is transiently lost in the cells which comprise the neointima. NADPH oxidase 4 therefore does not interfere with restenosis development after wire-induced vascular injury.
Collapse
Affiliation(s)
- Giulia K Buchmann
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Christoph Schürmann
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Manuela Spaeth
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Wesley Abplanalp
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany; Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Germany
| | - Lukas Tombor
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany; Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Germany
| | - David John
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany; Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Germany
| | - Timothy Warwick
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Flávia Rezende
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Ajay M Shah
- School of Cardiovascular Medicine & Sciences, King's College London, British Heart Foundation Centre, London, UK
| | | | - Norbert Weissmann
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Gießen, Germany
| | - Stefanie Dimmeler
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany; Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Germany
| | - Katrin Schröder
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany
| | - Ralf P Brandes
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt Am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, Frankfurt Am Main, Germany.
| |
Collapse
|
33
|
Wack G, Metzner K, Kuth MS, Wang E, Bresnick A, Brandes RP, Schröder K, Wittig I, Schmidtko A, Kallenborn-Gerhardt W. Nox4-dependent upregulation of S100A4 after peripheral nerve injury modulates neuropathic pain processing. Free Radic Biol Med 2021; 168:155-167. [PMID: 33789124 DOI: 10.1016/j.freeradbiomed.2021.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/23/2021] [Accepted: 03/17/2021] [Indexed: 11/24/2022]
Abstract
Previous studies suggested that reactive oxygen species (ROS) produced by NADPH oxidase 4 (Nox4) affect the processing of neuropathic pain. However, mechanisms underlying Nox4-dependent pain signaling are incompletely understood. In this study, we aimed to identify novel Nox4 downstream interactors in the nociceptive system. Mice lacking Nox4 specifically in sensory neurons were generated by crossing Advillin-Cre mice with Nox4fl/fl mice. Tissue-specific deletion of Nox4 in sensory neurons considerably reduced mechanical hypersensitivity and neuronal action potential firing after peripheral nerve injury. Using a proteomic approach, we detected various proteins that are regulated in a Nox4-dependent manner after injury, including the small calcium-binding protein S100A4. Immunofluorescence staining and Western blot experiments confirmed that S100A4 expression is massively up-regulated in peripheral nerves and dorsal root ganglia after injury. Furthermore, mice lacking S100A4 showed increased mechanical hypersensitivity after peripheral nerve injury and after delivery of a ROS donor. Our findings suggest that S100A4 expression is up-regulated after peripheral nerve injury in a Nox4-dependent manner and that deletion of S100A4 leads to an increased neuropathic pain hypersensitivity.
Collapse
Affiliation(s)
- Gesine Wack
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, 60438 Frankfurt am Main, Germany
| | - Katharina Metzner
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, 60438 Frankfurt am Main, Germany
| | - Miriam S Kuth
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, 60438 Frankfurt am Main, Germany
| | - Elena Wang
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, 60438 Frankfurt am Main, Germany
| | - Anne Bresnick
- Albert Einstein College of Medicine, Department of Biochemistry, Bronx, NY 10461, USA
| | - Ralf P Brandes
- Institute of Cardiovascular Physiology, Goethe University, 60590 Frankfurt am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590 Frankfurt am Main, Germany
| | - Katrin Schröder
- Institute of Cardiovascular Physiology, Goethe University, 60590 Frankfurt am Main, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590 Frankfurt am Main, Germany
| | - Ilka Wittig
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590 Frankfurt am Main, Germany; Functional Proteomics, ZBC, Medical School, Goethe University, 60590 Frankfurt am Main, Germany; Cluster of Excellence "Macromolecular Complexes", Goethe University, 60590 Frankfurt am Main, Germany
| | - Achim Schmidtko
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, 60438 Frankfurt am Main, Germany
| | | |
Collapse
|
34
|
Guo W, Gao H, Pan W, Yu P, Che G. High glucose induces Nox4 expression and podocyte apoptosis through the Smad3/ezrin/PKA pathway. Biol Open 2021; 10:bio.055012. [PMID: 33046439 PMCID: PMC8181897 DOI: 10.1242/bio.055012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/28/2020] [Indexed: 12/27/2022] Open
Abstract
Podocytes are the major target in proteinuric kidney diseases such as diabetic nephropathy. The underlying molecular mechanisms by which high glucose (HG) results in podocyte damage remain unclear. This study investigated the regulatory role of Smad3, ezrin, and protein kinase A (PKA) in NADPH oxidase (Nox4) expression, reactive oxidative species (ROS) production, and apoptosis in HG-treated podocytes. A human podocyte cell line was cultured and differentiated, then treated with 30 mM HG. Apoptosis and intracellular ROS levels were assessed using TUNEL and DCF assays, respectively. Expressions of Nox4, phospho-Smad3Ser423/425, phospho-PKAThr197, and phospho-ezrinThr567 were evaluated using western blotting. ELISA was used to quantify intracellular cAMP concentration and PKA activity. Knockdown assay was used to inhibit the expressions of Smad3, Nox4, and ezrin by lentiviral shRNA. In HG-treated podocytes, the level of phospho-Smad3Ser423/425 and phospho-ezrinThr567 was increased significantly, which was accompanied by the reduction of cAMP and phospho-PKAThr197. HG-induced apoptosis was significantly prevented by the Smad3-inhibitor SIS3 or shRNA-Smad3. In podocytes expressing shRNA-ezrin or shRNA-Nox4, apoptosis was remarkably mitigated following HG treatment. HG-induced upregulation of phospho-ezrinThr567 and downregulation of phospho-PKAThr197 was significantly prevented by SIS3, shRNA-ezrin or shRNA-Smad3. Forskolin, a PKA activator, significantly inhibited HG-mediated upregulation of Nox4 expression, ROS generation, and apoptosis. Additionally, an increase in the ROS level was prohibited in HG-treated podocytes with the knockdown of Nox4, Smad3, or ezrin. Taken together, our findings provided evidence that Smad3-mediated ezrin activation upregulates Nox4 expression and ROS production, by suppressing PKA activity, which may at least in part contribute to HG-induced podocyte apoptosis. Summary: The actin-membrane linker protein ezrin-related signaling plays a critical role in podocyte apoptosis through regulation of Nox4 expression and ROS production.
Collapse
Affiliation(s)
- Wanxu Guo
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, 130041, China
| | - Hang Gao
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun 130021, China
| | - Wei Pan
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, 130041, China
| | - Panapn Yu
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, 130041, China
| | - Guanghua Che
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, 130041, China
| |
Collapse
|
35
|
Zhang Y, Liu MW, He Y, Deng N, Chen Y, Huang J, Xie W. Protective effect of resveratrol on estrogen deficiency-induced osteoporosis though attenuating NADPH oxidase 4/nuclear factor kappa B pathway by increasing miR-92b-3p expression. Int J Immunopathol Pharmacol 2021; 34:2058738420941762. [PMID: 32674689 PMCID: PMC7370339 DOI: 10.1177/2058738420941762] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Introduction: Resveratrol (RES) exhibits estrogen-like effects and has potential applications to treatment of osteoporosis caused by estrogen deficiency; however, the specific mechanism of action of RES remains unclear. Here, we examined the therapeutic effects of RES on ovariectomized (OVX) rats with osteoporosis and determined the underlying mechanism. Methods: We established an OVX rat model to study osteoporosis caused by estrogen deficiency. The treatment groups were given orally with RES (50, 100, and 200 mg/day), the estrogen group received 0.8 mg/kg E2 daily via oral route, and the sham-operated and control groups received an equivalent dose of sodium carboxymethylcellulose orally. After 12 weeks of treatment, we used real-time quantitative polymerase chain reaction (PCR) and Western blot analysis to measure the gene and protein expression of miR-92b-3p, Nox4, NF-κBp65, IκB, BMP2, Smad7, and RUNX-2 in bone tissues. Right femur structural parameters were evaluated by micro-CT. Dual-energy X-ray 4500 W was used to determine systemic bone mineral density (BMD). Enzyme-linked immunosorbent assay (ELISA) kits were used to determine the serum levels of bone alkaline phosphatase (BALP), osteoprotegerin (OPG), anti-tartrate acid phosphatase-5b (PTRA5b), and carboxylated terminal peptide (CTX-I). The rat femoral bone specimens were stained using hematoxylin and eosin for pathological examination Results: We observed increased levels of serum estrogen in both ovaries, elevated miR-92b-3p levels in bone tissues, reduced levels of Nox4, NF-κBp65, p-IκB-a, and cathepsin K, and elevated gene and protein expression of BMP2, Smad7, and RUNX-2 in the OVX rat model of osteoporosis after treatment with RES. Elevated levels of BALP, OPG, ALP, and BMD along with reduced levels of TRAP-5b and CTX-I were also observed. The structural model index (SMI) and the trabecular space (Tb. Sp) decreased, while the trabecular thickness (Tb. Th), bone volume fraction (BV/TV), trabecular number (Tb.N), and tissue bone density (Conn.D) increased, thereby improving osteoporosis induced by estrogen deficiency in both ovaries. Conclusion: Cathepsin K expression and Nox4/NF-κB signaling pathway were suppressed by the elevated expression of miR-92b-3p. This inhibition was pivotal in the protective effect of RES against osteoporosis induced by estrogen deficiency in both ovaries. Thus, RES efficiently alleviated osteoporosis induced by estrogen deficiency in rats.
Collapse
Affiliation(s)
- Ye Zhang
- Department of Traditional Chinese Medicine, The Third People's Hospital of Yunnan Province, Kunming, China
| | - Ming-Wei Liu
- Department of Emergency Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yun He
- Department of Orthopedics, Calmett Hospital & The First Hospital of Kunming, Kunming, China
| | - Ning Deng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yan Chen
- Normal Human Anatomy and Histological Embryology Department, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Jiecong Huang
- Department of Encephalopathy, Guangzhou Conghua Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Wei Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| |
Collapse
|
36
|
MacDonald TJ, Liu J, Yu B, Malhotra A, Munson J, Park JC, Wang K, Fei B, Bellamkonda R, Arbiser J. Liposome-Imipramine Blue Inhibits Sonic Hedgehog Medulloblastoma In Vivo. Cancers (Basel) 2021; 13:1220. [PMID: 33799550 DOI: 10.3390/cancers13061220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/21/2021] [Accepted: 02/26/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Imipramine blue (IB) is a novel NADPH oxidase inhibitor. We assessed the single agent activity of IB against a well-established model of medulloblastoma, the most common malignant brain tumor of childhood. IB slowed progression of medulloblastoma and increased survival of mice with transgenic medulloblastoma. Clinical trials of IB for medulloblastoma should be pursued. Abstract Sonic hedgehog subtype of medulloblastoma (SHH MB) with metastasis or specific clinical or molecular alteration shas a poor prognosis and current therapy results in long-term cognitive impairment in the majority of survivors. Thus, a great need exists for new targeted therapeutic approaches to more effectively treat SHH MB in children. Imipramine blue (IB), a novel molecule with anti-tumor properties, inhibits the NADPH oxidase (NOX) family of enzymes, which are critical for SHH MB survival and treatment resistance. In this study, IB was encapsulated within a liposome to form a liposomal nanoparticle, Liposome-IB (Lipo-IB). This complex has the ability to cross the blood–brain barrier and be preferentially taken up by tumor cells within the brain. We demonstrated in vitro that Lipo-IB treatment caused a dose-dependent decrease in SHH MB cell viability and migration. Short-term administration of single agent Lipo-IB treatment of SHH MB in vivo significantly inhibited tumor growth, reduced the tumor volume, including a complete tumor response, and improved survival compared to control treated mice, without any observable toxicity. We conclude that Lipo-IB is a potential novel nanoparticle-based therapeutic for the treatment of SHH MB that warrants further preclinical safety and efficacy testing for development towards clinical investigation.
Collapse
|
37
|
Helfinger V, Freiherr von Gall F, Henke N, Kunze MM, Schmid T, Rezende F, Heidler J, Wittig I, Radeke HH, Marschall V, Anderson K, Shah AM, Fulda S, Brüne B, Brandes RP, Schröder K. Genetic deletion of Nox4 enhances cancerogen-induced formation of solid tumors. Proc Natl Acad Sci U S A 2021; 118:e2020152118. [PMID: 33836590 DOI: 10.1073/pnas.2020152118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The stereotype of ROS produced by NADPH oxidases as cause of malignant diseases persists in a generalized manner. In fact, high levels of ROS formation could be harmful in the context of a disease process. This study demonstrates that loss of the NADPH oxidase Nox4, as a constitutive source of ROS, promotes cancerogen-induced formation of solid tumors. Accordingly, a certain tonic, constitutive low level of Nox4-derived hydrogen peroxide appears to reduce the risk of cancerogen-induced tumor formation. Reactive oxygen species (ROS) can cause cellular damage and promote cancer development. Besides such harmful consequences of overproduction of ROS, all cells utilize ROS for signaling purposes and stabilization of cell homeostasis. In particular, the latter is supported by the NADPH oxidase 4 (Nox4) that constitutively produces low amounts of H2O2. By that mechanism, Nox4 forces differentiation of cells and prevents inflammation. We hypothesize a constitutive low level of H2O2 maintains basal activity of cellular surveillance systems and is unlikely to be cancerogenic. Utilizing two different murine models of cancerogen-induced solid tumors, we found that deletion of Nox4 promotes tumor formation and lowers recognition of DNA damage. Nox4 supports phosphorylation of H2AX (γH2AX), a prerequisite of DNA damage recognition, by retaining a sufficiently low abundance of the phosphatase PP2A in the nucleus. The underlying mechanism is continuous oxidation of AKT by Nox4. Interaction of oxidized AKT and PP2A captures the phosphatase in the cytosol. Absence of Nox4 facilitates nuclear PP2A translocation and dephosphorylation of γH2AX. Simultaneously AKT is left phosphorylated. Thus, in the absence of Nox4, DNA damage is not recognized and the increased activity of AKT supports proliferation. The combination of both events results in genomic instability and promotes tumor formation. By identifying Nox4 as a protective source of ROS in cancerogen-induced cancer, we provide a piece of knowledge for understanding the role of moderate production of ROS in preventing the initiation of malignancies.
Collapse
|
38
|
Yu W, Li S, Wu H, Hu P, Chen L, Zeng C, Tong X. Endothelial Nox4 dysfunction aggravates atherosclerosis by inducing endoplasmic reticulum stress and soluble epoxide hydrolase. Free Radic Biol Med 2021; 164:44-57. [PMID: 33418110 DOI: 10.1016/j.freeradbiomed.2020.12.450] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/17/2020] [Accepted: 12/29/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS Our previous findings have demonstrated the protective effect of endothelial Nox4-based NADPH oxidase on atherosclerosis. One of the possible mechanisms is the inhibition of soluble epoxide hydrolase (sEH), a proinflammatory and atherogenic factor. Our goal was to investigate whether in vivo inhibition of sEH by 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea (TPPU) alleviates endothelial Nox4 dysfunction caused atherosclerosis and the regulatory mechanism of endothelial Nox4 on sEH. METHODS & results: We used endothelial human Nox4 dominant-negative (EDN) transgenic mice in ApoE deficient background to mimic the dysfunction of endothelial Nox4 in atherosclerosis-prone conditions. In EDN aortic endothelium, sEH and the inflammatory marker vascular cell adhesion molecule 1 (VCAM1) were upregulated. TPPU reduced atherosclerotic lesions in EDN mice. In EDN endothelial cells (ECs), the endoplasmic reticulum (ER) stress markers (BIP, IRE1α, phosphorylation of PERK, ATF6) were upregulated, and they can be suppressed by ER stress inhibitor 4-phenyl butyric acid (4-PBA). In EDN ECs, 4-PBA downregulated the expression of sEH and VCAM1, suppressed inflammation, and its application in vivo reduced atherosclerotic lesions of EDN mice. CONCLUSIONS Endothelial Nox4 dysfunction upregulated sEH to enhance inflammation, probably by its induction of ER stress. Inhibition of ER stress or sEH is beneficial to alleviate atherosclerosis caused by endothelial Nox4 dysfunction.
Collapse
Affiliation(s)
- Weimin Yu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, Chongqing University, Chongqing, 401331, China
| | - Siqi Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, Chongqing University, Chongqing, 401331, China
| | - Haixia Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, Chongqing University, Chongqing, 401331, China
| | - Pingping Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, Chongqing University, Chongqing, 401331, China.
| | - Lili Chen
- Wuhan Easy Diagnosis Biomedicine Co., Ltd, Wuhan, 430075, China
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China.
| | - Xiaoyong Tong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, Chongqing University, Chongqing, 401331, China.
| |
Collapse
|
39
|
Mammucari C. In the right place at the right time: ROS and Ca 2+ are allies in the battle for survival. Cell Calcium 2021; 95:102354. [PMID: 33581406 DOI: 10.1016/j.ceca.2021.102354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 11/21/2022]
Abstract
Both Ca2+ and reactive oxygen species (ROS) are double face entities, acting as signaling messengers or cell fate determinants according to their concentration and to spatial temporal restrictions. Recently, Beretta and colleagues found that ROS generated at ER-mitochondria contact sites (MAMs) support cell survival in stress conditions by decreasing inter-organelle Ca2+ transfer.
Collapse
|
40
|
Morris NL, Harris FL, Brown LAS, Yeligar SM. Alcohol induces mitochondrial derangements in alveolar macrophages by upregulating NADPH oxidase 4. Alcohol 2021; 90:27-38. [PMID: 33278514 DOI: 10.1016/j.alcohol.2020.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/11/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Abstract
Excessive alcohol users have increased risk of developing respiratory infections in part due to oxidative stress-induced alveolar macrophage (AM) phagocytic dysfunction. Chronic ethanol exposure increases cellular oxidative stress in AMs via upregulation of NADPH oxidase (Nox) 4, and treatment with the peroxisome proliferator-activated receptor gamma (PPARγ) ligand, rosiglitazone, decreases ethanol-induced Nox4. However, the mechanism by which ethanol induces Nox4 expression and the PPARγ ligand reverses this defect has not been elucidated. Since microRNA (miR)-92a has been predicted to target Nox4 for destabilization, we hypothesized that ethanol exposure decreases miR-92a expression and leads to Nox4 upregulation. Previous studies have implicated mitochondrial-derived oxidative stress in AM dysfunction. We further hypothesized that ethanol increases mitochondrial-derived AM oxidative stress and dysfunction via miR-92a, and that treatment with the PPARγ ligand, pioglitazone, could reverse these derangements. To test these hypotheses, a mouse AM cell line, MH-S cells, was exposed to ethanol in vitro, and primary AMs were isolated from a mouse model of chronic ethanol consumption to measure Nox4, mitochondrial target mRNA (qRT-PCR) and protein levels (confocal microscopy), mitochondria-derived reactive oxygen species (confocal immunofluorescence), mitochondrial fission (electron microscopy), and mitochondrial bioenergetics (extracellular flux analyzer). Ethanol exposure increased Nox4, enhanced mitochondria-derived oxidative stress, augmented mitochondrial fission, and impaired mitochondrial bioenergetics. Transfection with a miR-92a mimic in vitro or pioglitazone treatment in vivo diminished Nox4 levels, resulting in improvements in these ethanol-mediated derangements. These findings demonstrate that pioglitazone may provide a novel therapeutic approach to mitigate ethanol-induced AM mitochondrial derangements.
Collapse
|
41
|
Wang M, Murdoch CE, Brewer AC, Ivetic A, Evans P, Shah AM, Zhang M. Endothelial NADPH oxidase 4 protects against angiotensin II-induced cardiac fibrosis and inflammation. ESC Heart Fail 2021; 8:1427-1437. [PMID: 33511759 PMCID: PMC8006688 DOI: 10.1002/ehf2.13228] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/07/2020] [Accepted: 01/13/2021] [Indexed: 12/21/2022] Open
Abstract
Aims Endothelial activation and inflammatory cell infiltration have important roles in the development of cardiac fibrosis induced by renin–angiotensin system activation. NADPH oxidases (Nox proteins) are expressed in endothelial cells (ECs) and alter their function. Previous studies indicated that Nox2 in ECs contributes to angiotensin II (AngII)‐induced cardiac fibrosis. However, the effects of EC Nox4 on cardiac fibrosis are unknown. Methods and results Transgenic (TG) mice overexpressing endothelial‐restricted Nox4 were studied alongside wild‐type (WT) littermates as controls. At baseline, Nox4 TG mice had significantly enlarged hearts compared with WT, with elongated cardiomyocytes (increased by 18.5%, P < 0.01) and eccentric hypertrophy but well‐preserved cardiac function by echocardiography and in vivo pressure–volume analysis. Animals were subjected to a chronic AngII infusion (AngII, 1.1 mg/kg/day) for 14 days. Whereas WT/AngII developed a 2.1‐fold increase in interstitial cardiac fibrosis as compared with WT/saline controls (P < 0.01), TG/AngII mice developed significant less fibrosis (1.4‐fold increase, P > 0.05), but there were no differences in cardiac hypertrophy or contractile function between the two groups. TG hearts displayed significantly decreased inflammatory cell infiltration with reduced levels of vascular cell adhesion molecule 1 in both the vasculature and myocardium compared with WT after AngII treatment. TG microvascular ECs stimulated with AngII in vitro supported significantly less leukocyte adhesion than WT ECs. Conclusions A chronic increase in endothelial Nox4 stimulates physiological cardiac hypertrophy and protects against AngII‐induced cardiac fibrosis by inhibiting EC activation and the recruitment of inflammatory cells. Mice with endothelium‐specific overexpression of Nox4 (EndoNox4 TG) exhibit eccentric hypertrophy with well‐preserved cardiac function at baseline. EndoNox4 TG mice develop significantly less interstitial cardiac fibrosis in response to chronic pressure AngII stimulation, independent of cardiac hypertrophy. Overexpression of Nox4 in endothelial cells reduces AngII‐induced endothelial activation. An increase in endothelial Nox4 inhibits AngII‐induced recruitment of inflammatory cells in the heart.
Collapse
Affiliation(s)
- Minshu Wang
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK.,Department of Ophthalmology, Peking University Third Hospital, Beijing, China
| | - Colin E Murdoch
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Alison C Brewer
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Aleksandar Ivetic
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Paul Evans
- Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, UK
| | - Ajay M Shah
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Min Zhang
- School of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre of Excellence, 125 Coldharbour Lane, London, SE5 9NU, UK
| |
Collapse
|
42
|
Tao W, Yu L, Shu S, Liu Y, Zhuang Z, Xu S, Bao X, Gu Y, Cai F, Song W, Xu Y, Zhu X. miR-204-3p/ Nox4 Mediates Memory Deficits in a Mouse Model of Alzheimer's Disease. Mol Ther 2021; 29:396-408. [PMID: 32950103 PMCID: PMC7791017 DOI: 10.1016/j.ymthe.2020.09.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 07/25/2020] [Accepted: 09/01/2020] [Indexed: 12/17/2022] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorder leading to dementia in the elderly, and the mechanisms of AD are not fully defined. MicroRNAs (miRNAs) have been shown to contribute to memory deficits in AD. In this study, we identified that miR-204-3p was downregulated in the hippocampus and plasma of 6-month-old APPswe/PS1dE9 (APP/PS1) mice. miR-204-3p overexpression attenuated memory and synaptic deficits in APP/PS1 mice. The amyloid levels and oxidative stress were decreased in the hippocampus of APP/PS1 mice after miR-204-3p overexpression. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (Nox4) was a target of miR-204-3p, and Nox4 inhibition by GLX351322 protected neuronal cells against Aβ1-42-induced neurotoxicity. Furthermore, GLX351322 treatment rescued synaptic and memory deficits, and decreased oxidative stress and amyloid levels in the hippocampus of APP/PS1 mice. These results revealed that miR-204-3p attenuated memory deficits and oxidative stress in APP/PS1 mice by targeting Nox4, and miR-204-3p overexpression and/or Nox4 inhibition might be a potential therapeutic strategy for AD treatment.
Collapse
Affiliation(s)
- Wenyuan Tao
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Linjie Yu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Shu Shu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Ying Liu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Zi Zhuang
- Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Siyi Xu
- Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Xinyu Bao
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Yue Gu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China
| | - Fang Cai
- Townsend Family Laboratories, Department of Psychiatry, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Weihong Song
- Townsend Family Laboratories, Department of Psychiatry, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Yun Xu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China; Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, Jiangsu 211166, PR China.
| | - Xiaolei Zhu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210008, PR China; Institute of Brain Sciences, Nanjing University, Nanjing, Jiangsu 210093, PR China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210008, PR China; Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing, Jiangsu 210008, PR China; Nanjing Neuropsychiatry Clinic Medical Center, Nanjing, Jiangsu 210008, PR China; Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, Jiangsu 211166, PR China.
| |
Collapse
|
43
|
Yang K, Bai Y, Yu N, Lu B, Han G, Yin C, Pang Z. Huidouba Improved Podocyte Injury by Down-Regulating Nox4 Expression in Rats With Diabetic Nephropathy. Front Pharmacol 2021; 11:587995. [PMID: 33390962 PMCID: PMC7774310 DOI: 10.3389/fphar.2020.587995] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic nephropathy (DN), as the most common microvascular complication of diabetes mellitus (DM), has become one of the leading causes of end-stage renal disease (ESRD). Numerous studies have indicated that podocyte loss plays an important role in the development of DN and can even cause proteinuria in the early stage of DN. In the study, we found that Huidouba (HDB) significantly decreased the level of fasting blood glucose (FBG), the ratio of microalbumin to urine creatine (mAlb/Ucr), serum creatine (Scr), serum urea nitrogen (BUN), and malondialdehyde (MDA) in the kidney and downregulated the expression of Nox4 predominantly located in glomerular tissue while upregulating nephrin and WT1 expression in DN rats. In addition, HDB could also reduce podocyte damage and glomerular basement membrane (GBM) pathologic changes, as shown by transmission electron microscopy (TEM). In vitro study showed that HDB could inhibit high glucose (HG)-induced Reactive Oxygen Species (ROS) production and protect against podocyte apoptosis by downregulated Nox4 expression in podocytes. These results may provide a scientific basis for developing HDB as a potential folk medicine for the treatment of DN.
Collapse
Affiliation(s)
- KunBao Yang
- School of Pharmacy, Minzu University of China, Beijing, China.,Hebei Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Hebei, China
| | - YingHui Bai
- School of Pharmacy, Minzu University of China, Beijing, China
| | - Ning Yu
- The Affiliated Hospital of Chengde Medical University, Hebei, China
| | - BiNan Lu
- School of Pharmacy, Minzu University of China, Beijing, China
| | - GuiYan Han
- The Affiliated Hospital of Chengde Medical University, Hebei, China
| | - ChangJiang Yin
- Hebei Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Hebei, China
| | - ZongRan Pang
- School of Pharmacy, Minzu University of China, Beijing, China
| |
Collapse
|
44
|
Specht KS, Kant S, Addington AK, McMillan RP, Hulver MW, Learnard H, Campbell M, Donnelly SR, Caliz AD, Pei Y, Reif MM, Bond JM, DeMarco A, Craige B, Keaney JF, Craige SM. Nox4 mediates skeletal muscle metabolic responses to exercise. Mol Metab 2021; 45:101160. [PMID: 33400973 PMCID: PMC7856463 DOI: 10.1016/j.molmet.2020.101160] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/15/2020] [Accepted: 12/30/2020] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE The immediate signals that couple exercise to metabolic adaptations are incompletely understood. Nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4) produces reactive oxygen species (ROS) and plays a significant role in metabolic and vascular adaptation during stress conditions. Our objective was to determine the role of Nox4 in exercise-induced skeletal muscle metabolism. METHODS Mice were subjected to acute exercise to assess their immediate responses. mRNA and protein expression responses to Nox4 and hydrogen peroxide (H2O2) were measured by qPCR and immunoblotting. Functional metabolic flux was measured via ex vivo fatty acid and glucose oxidation assays using 14C-labeled palmitate and glucose, respectively. A chronic exercise regimen was also utilized and the time to exhaustion along with key markers of exercise adaptation (skeletal muscle citrate synthase and beta-hydroxyacyl-coA-dehydrogenase activity) were measured. Endothelial-specific Nox4-deficient mice were then subjected to the same acute exercise regimen and their subsequent substrate oxidation was measured. RESULTS We identified key exercise-responsive metabolic genes that depend on H2O2 and Nox4 using catalase and Nox4-deficient mice. Nox4 was required for the expression of uncoupling protein 3 (Ucp3), hexokinase 2 (Hk2), and pyruvate dehydrogenase kinase 4 (Pdk4), but not the expression of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (Pgc-1α). Global Nox4 deletion resulted in decreased UCP3 protein expression and impaired glucose and fatty acid oxidization in response to acute exercise. Furthermore, Nox4-deficient mice demonstrated impaired adaptation to chronic exercise as measured by the time to exhaustion and activity of skeletal muscle citrate synthase and beta-hydroxyacyl-coA-dehydrogenase. Importantly, mice deficient in endothelial-Nox4 similarly demonstrated attenuated glucose and fatty acid oxidation following acute exercise. CONCLUSIONS We report that H2O2 and Nox4 promote immediate responses to exercise in skeletal muscle. Glucose and fatty acid oxidation were blunted in the Nox4-deficient mice post-exercise, potentially through regulation of UCP3 expression. Our data demonstrate that endothelial-Nox4 is required for glucose and fatty acid oxidation, suggesting inter-tissue cross-talk between the endothelium and skeletal muscle in response to exercise.
Collapse
Affiliation(s)
- Kalyn S Specht
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Shashi Kant
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA; Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Adele K Addington
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Ryan P McMillan
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA; Metabolism Core, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Matthew W Hulver
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Heather Learnard
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Maura Campbell
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Sarah R Donnelly
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Amada D Caliz
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA; Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Yongmei Pei
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Michaella M Reif
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Jacob M Bond
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA; Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Roanoke, VA, 24016, USA
| | - Anthony DeMarco
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Branch Craige
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, 24061, USA
| | - John F Keaney
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA; Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Siobhan M Craige
- Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, 24061, USA; Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01655, USA.
| |
Collapse
|
45
|
Thallas-Bonke V, Tan SM, Lindblom RS, Snelson M, Granata C, Jha JC, Sourris KC, Laskowski A, Watson A, Tauc M, Rubera I, Zheng G, Shah AM, Harris DCH, Elbatreek MH, Kantharidis P, Cooper ME, Jandeleit-Dahm K, Coughlan MT. Targeted deletion of nicotinamide adenine dinucleotide phosphate oxidase 4 from proximal tubules is dispensable for diabetic kidney disease development. Nephrol Dial Transplant 2020; 36:988-997. [PMID: 33367789 DOI: 10.1093/ndt/gfaa376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The nicotinamide adenine dinucleotide phosphate oxidase isoform 4 (Nox4) mediates reactive oxygen species (ROS) production and renal fibrosis in diabetic kidney disease (DKD) at the level of the podocyte. However, the mitochondrial localization of Nox4 and its role as a mitochondrial bioenergetic sensor has recently been reported. Whether Nox4 drives pathology in DKD within the proximal tubular compartment, which is densely packed with mitochondria, is not yet known. METHODS We generated a proximal tubular-specific Nox4 knockout mouse model by breeding Nox4flox/flox mice with mice expressing Cre recombinase under the control of the sodium-glucose cotransporter-2 promoter. Subsets of Nox4ptKO mice and their Nox4flox/flox littermates were injected with streptozotocin (STZ) to induce diabetes. Mice were followed for 20 weeks and renal injury was assessed. RESULTS Genetic ablation of proximal tubular Nox4 (Nox4ptKO) resulted in no change in renal function and histology. Nox4ptKO mice and Nox4flox/flox littermates injected with STZ exhibited the hallmarks of DKD, including hyperfiltration, albuminuria, renal fibrosis and glomerulosclerosis. Surprisingly, diabetes-induced renal injury was not improved in Nox4ptKO STZ mice compared with Nox4flox/flox STZ mice. Although diabetes conferred ROS overproduction and increased the mitochondrial oxygen consumption rate, proximal tubular deletion of Nox4 did not normalize oxidative stress or mitochondrial bioenergetics. CONCLUSIONS Taken together, these results demonstrate that genetic deletion of Nox4 from the proximal tubules does not influence DKD development, indicating that Nox4 localization within this highly energetic compartment is dispensable for chronic kidney disease pathogenesis in the setting of diabetes.
Collapse
Affiliation(s)
| | - Sih Min Tan
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Runa S Lindblom
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Cesare Granata
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
| | - Jay Chandra Jha
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Anna Watson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Michel Tauc
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Isabelle Rubera
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Guoping Zheng
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine and Sciences, London, UK
| | - David C H Harris
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Mahmoud H Elbatreek
- Department of Pharmacology and Personalised Medicine, School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Phillip Kantharidis
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karin Jandeleit-Dahm
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,German Diabetes Centre, Leibniz Centre for Diabetes Research, Heinrich Heine University, Duesseldorf, Germany
| | - Melinda T Coughlan
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| |
Collapse
|
46
|
Huang C, Liang D, Huang C, Li B, He J, Huang X. The protective effects of simvastatin in Cadmium-Induced preosteoblast injury through Nox4. J Recept Signal Transduct Res 2020; 42:117-124. [PMID: 33349105 DOI: 10.1080/10799893.2020.1859533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Cadmium (Cd) has a direct toxic effect on bones. Statins such as simvastatin have protective effects on various diseases, including on tissue injury. The current study revealed the efficacy of simvastatin on Cd-induced preosteoblast injury. Preosteoblast MC3T3-E1 cells were incubated with various doses of CdCl2 for 12 h, 24 h and 48 h, and then the cell cytotoxicity was assessed using MTT assay and flow cytometry, respectively. The expression level of Nox4 was assessed by Western blot and qRT-PCR. The morphological appearance of MC3T3-E1 cells was observed under a microscope. Cells exposed to CdCl2 (5 µM) were further treated by simvastatin at various doses, subsequently cell viability, apoptosis and the expression of Nox4 were measured. Furthermore, to confirm the protective effects of simvastatin on Cd-induced pre-osteoblast injury, functional rescue assays were performed after corresponding cell treatment by simvastatin (10-8 M), CdCl2 (5 µM), and overexpression of Nox4. Expressions of cell apoptosis-related markers were measured by Western blot and qRT-PCR. The results revealed that CdCl2 caused MC3T3-E1 cell injury because the cell viability was decreased and the apoptosis was increased. Nox4 expression was up-regulated with the increase of CdCl2 concentrations. Simvastatin increased the cell viability, relieved the cell apoptosis and Nox4 expression previously increased by CdCl2. The effects of CdCl2 on MC3T3-E1 cells and Nox4 expression could be attenuated by simvastatin, and promoted by Nox4 overexpression. The current study found that simvastatin protects Cd-induced preosteoblast injury via Nox4, thus, it can be used as a potential drug for treating cadmium-induced bone injury.
Collapse
Affiliation(s)
- Chongxia Huang
- Department of Rehabilitation, Guangzhou Orthopedic-Traumatological Hospital, Guangzhou, China
| | - Du Liang
- Department of Orthopedics and Arthrolog, Guangzhou Orthopedic-Traumatological Hospital, Guangzhou, China
| | - Chongbo Huang
- Department of Orthopedic Surgery, Guangzhou Orthopedic-Traumatological Hospital, Guangzhou, China
| | - Baolin Li
- Department of Orthopedic Surgery, Guangzhou Orthopedic-Traumatological Hospital, Guangzhou, China
| | - Jiandong He
- Department of Orthopedics and Arthrolog, Guangzhou Orthopedic-Traumatological Hospital, Guangzhou, China
| | - Ximou Huang
- Department of Orthopedics and Traumatology, Guangzhou Yuexiu District Orthopedics and Traumatology Rehabilitation, Guangzhou, China
| |
Collapse
|
47
|
Chen ZQ, Sun XH, Li XJ, Xu ZC, Yang Y, Lin ZY, Xiao HM, Zhang M, Quan SJ, Huang HQ. Polydatin attenuates renal fibrosis in diabetic mice through regulating the Cx32- Nox4 signaling pathway. Acta Pharmacol Sin 2020; 41:1587-1596. [PMID: 32724174 PMCID: PMC7921128 DOI: 10.1038/s41401-020-0475-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022] Open
Abstract
We previously found that polydatin could attenuate renal oxidative stress in diabetic mice and improve renal fibrosis. Recent evidence shows that NADPH oxidase 4 (Nox4)-derived reactive oxygen species (ROS) contribute to inflammatory and fibrotic processes in diabetic kidneys. In this study we investigated whether polydatin attenuated renal fibrosis by regulating Nox4 in vitro and in vivo. In high glucose-treated rat glomerular mesangial cells, polydatin significantly decreased the protein levels of Nox4 by promoting its K48-linked polyubiquitination, thus inhibited the production of ROS, and eventually decreasing the expression of fibronectin (FN) and intercellular adhesion molecule-1 (ICAM-1), the main factors that exacerbate diabetic renal fibrosis. Overexpression of Nox4 abolished the inhibitory effects of polydatin on FN and ICAM-1 expression. In addition, the expression of Connexin32 (Cx32) was significantly decreased, which was restored by polydatin treatment. Cx32 interacted with Nox4 and reduced its protein levels. Knockdown of Cx32 abolished the inhibitory effects of polydatin on the expression of FN and ICAM-1. In the kidneys of streptozocin-induced diabetic mice, administration of polydatin (100 mg·kg-1·d-1, ig, 6 days a week for 12 weeks) increased Cx32 expression and reduced Nox4 expression, decreased renal oxidative stress levels and the expression of fibrotic factors, eventually attenuating renal injury and fibrosis. In conclusion, polydatin promotes K48-linked polyubiquitination and degradation of Nox4 by restoring Cx32 expression, thereby decreasing renal oxidative stress levels and ultimately ameliorating the pathological progress of diabetic renal fibrosis. Thus, polydatin reduces renal oxidative stress levels and attenuates diabetic renal fibrosis through regulating the Cx32-Nox4 signaling pathway.
Collapse
Affiliation(s)
- Zhi-Quan Chen
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- Department of Pharmacology, School of Pharmacy, Guangxi Medical University, Nanning, 530021, China
| | - Xiao-Hong Sun
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xue-Juan Li
- Department of Pharmacy, Shenzhen Children's Hospital, Shenzhen, 518026, China
| | - Zhan-Chi Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yan Yang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Ze-Yuan Lin
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hai-Ming Xiao
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Meng Zhang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Shi-Jian Quan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - He-Qing Huang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| |
Collapse
|
48
|
Tang X, Wang JJ, Wang J, Abboud HE, Chen Y, Zhang SX. Endothelium-specific deletion of Nox4 delays retinal vascular development and mitigates pathological angiogenesis. Angiogenesis 2020; 24:363-377. [PMID: 33201372 DOI: 10.1007/s10456-020-09757-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 11/06/2020] [Indexed: 11/29/2022]
Abstract
NADPH oxidase 4 (Nox4) is a major isoform of NADPH oxidases playing an important role in many biological processes. Previously we have shown that Nox4 is highly expressed in retinal blood vessels and is upregulated in oxygen-induced retinopathy (OIR). However, the exact role of endothelial Nox4 in retinal angiogenesis remains elusive. Herein, using endothelial cell (EC)-specific Nox4 knockout (Nox4EC-KO) mice, we investigated the impact of endothelial Nox4 deletion on retinal vascular development and pathological angiogenesis during OIR. Our results show that deletion of Nox4 in ECs led to retarded retinal vasculature development with fewer, blunted-end tip cells and sparser, dysmorphic filopodia at vascular front, and reduced density of vascular network in superficial, deep, and intermediate layers in postnatal day 7 (P7), P12, and P17 retinas, respectively. In OIR, loss of endothelial Nox4 had no effect on hyperoxia-induced retinal vaso-obliteration at P9 but significantly reduced aberrant retinal neovascularization at P17 and decreased the deep layer capillary density at P25. Ex vivo study confirmed that lack of Nox4 in ECs impaired vascular sprouting. Mechanistically, loss of Nox4 significantly reduced expression of VEGF, p-VEGFR2, integrin αV, angiopoietin-2, and p-ERK1/2, attenuating EC migration and proliferation. Taken together, our results indicate that endothelial Nox4 is important for retinal vascular development and contributes to pathological angiogenesis, likely through regulation of VEGF/VEGFR2 and angiopoietin-2/integrin αV/ERK pathways. In addition, our study suggests that endothelial Nox4 appears to be essential for intraretinal revascularization after hypoxia. These findings call for caution on targeting endothelial Nox4 in ischemic/hypoxic retinal diseases.
Collapse
Affiliation(s)
- Xixiang Tang
- Department of Ophthalmology and Ross Eye Institute, University at Buffalo, State University of New York, Buffalo, NY, USA.,SUNY Eye Institute, State University of New York, New York, NY, USA.,Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, China.,VIP Medical Service Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Joshua J Wang
- Department of Ophthalmology and Ross Eye Institute, University at Buffalo, State University of New York, Buffalo, NY, USA.,SUNY Eye Institute, State University of New York, New York, NY, USA
| | - Jinli Wang
- Department of Ophthalmology and Ross Eye Institute, University at Buffalo, State University of New York, Buffalo, NY, USA.,SUNY Eye Institute, State University of New York, New York, NY, USA
| | - Hanna E Abboud
- Department of Medicine, South Texas Veterans Healthcare System and the University of Texas Health Science Center, San Antonio, TX, USA
| | - Yanming Chen
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, China
| | - Sarah X Zhang
- Department of Ophthalmology and Ross Eye Institute, University at Buffalo, State University of New York, Buffalo, NY, USA. .,SUNY Eye Institute, State University of New York, New York, NY, USA. .,Department of Biochemistry, University at Buffalo, State University of New York, Buffalo, NY, USA.
| |
Collapse
|
49
|
Pushpakumar S, Ren L, Juin SK, Majumder S, Kulkarni R, Sen U. Methylation-dependent antioxidant-redox imbalance regulates hypertensive kidney injury in aging. Redox Biol 2020; 37:101754. [PMID: 33080442 PMCID: PMC7575806 DOI: 10.1016/j.redox.2020.101754] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 08/20/2020] [Accepted: 10/08/2020] [Indexed: 12/14/2022] Open
Abstract
The prevalence of hypertension increases with age, and oxidative stress is a major contributing factor to the pathogenesis of hypertension-induced kidney damage in aging. The nicotinamide adenine dinucleotide phosphate (NADPH) family is one of the major sources of reactive oxygen species (ROS) generation, and several NADPH oxidase isoforms are highly expressed in the kidney. Although epigenetic protein modification plays a role in organ injury, the methylation of the oxidant-antioxidant defense system and their role in hypertension-induced kidney damage in aging remains underexplored. The present study investigated the role of NADPH oxidase 4, superoxide dismutases (SODs), catalase, and NOS in Ang-II induced kidney damage in aging. Wild type (WT, C57BL/6J) mice aged 12-14 and 75-78 weeks were used and treated with or without Ang-II (1000 ng/kg/min) for 4 weeks with control mice receiving saline. Aged mice with or without Ang-II exhibited higher mean BP, lower renal blood flow, and decreased renal vascular density compared to young mice. While superoxide, 4-HNE, p22phox, Nox4, iNOS were increased in the aged kidney, the expression of eNOS, MnSOD, CuSOD, catalase, Sirt1, and -3 as well as the ratio of GSH/GSSG, and activities of SODs and catalase were decreased compared to young control mice. The changes further deteriorated with Ang-II treatment. In Ang-II treated aged mice, the expressions of DNMTs were increased and associated with increased methylation of SODs, Sirt1, and Nox4. We conclude that hypermethylation of antioxidant enzymes in the aged kidney during hypertension worsens redox imbalance leading to kidney damage.
Collapse
Affiliation(s)
- Sathnur Pushpakumar
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Lu Ren
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Subir Kumar Juin
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Suravi Majumder
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Rohan Kulkarni
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Utpal Sen
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, USA.
| |
Collapse
|
50
|
Wegner AM, Haudenschild DR. NADPH oxidases in bone and cartilage homeostasis and disease: A promising therapeutic target. J Orthop Res 2020; 38:2104-2112. [PMID: 32285964 DOI: 10.1002/jor.24693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/08/2020] [Accepted: 04/06/2020] [Indexed: 02/04/2023]
Abstract
Reactive oxygen species (ROS) generated by the NADPH oxidase (Nox) enzymes are important short-range signaling molecules. They have been extensively studied in the physiology and pathophysiology of the cardiovascular system, where they have important roles in vascular inflammation, angiogenesis, hypertension, cardiac injury, stroke, and aging. Increasing evidence demonstrates that ROS and Nox enzymes also affect bone homeostasis and osteoporosis, and more recent studies implicate ROS and Nox enzymes in both inflammatory arthritis and osteoarthritis. Mechanistically, this connection may be through the effects of ROS on signal transduction. ROS affect both transforming growth factor-β/Smad signaling, interleukin-1β/nuclear factor-kappa B signaling, and the resulting changes in matrix metalloproteinase expression. The purpose of this review is to describe the role of Nox enzymes in the physiology and pathobiology of bone and joints and to highlight the potential of therapeutically targeting the Nox enzymes.
Collapse
Affiliation(s)
- Adam M Wegner
- OrthoCarolina, Winston-Salem Spine Center, Winston-Salem, North Carolina
| | - Dominik R Haudenschild
- Department of Orthopaedic Surgery, University of California Davis, School of Medicine, Sacramento, California
| |
Collapse
|