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Pei X, Wang Z, He W, Li S, Chen X, Fan Z, Lan Y, Yuan L, Xu P. ER-tethered RNA-binding protein controls NADPH oxidase translation for hydrogen peroxide homeostasis. Redox Biol 2024; 71:103126. [PMID: 38503217 PMCID: PMC10963860 DOI: 10.1016/j.redox.2024.103126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/04/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024] Open
Abstract
Hydrogen peroxide (H2O2) functions as a signaling molecule in diverse cellular processes. While cells have evolved the capability to detect and manage changes in H2O2 levels, the mechanisms regulating key H2O2-producing enzymes to maintain optimal levels, especially in pancreatic beta cells with notably weak antioxidative defense, remain unclear. We found that the protein EI24 responds to changes in H2O2 concentration and regulates the production of H2O2 by controlling the translation of NOX4, an enzyme that is constitutively active, achieved by recruiting an RNA-binding protein, RTRAF, to the 3'-UTR of Nox4. Depleting EI24 results in RTRAF relocating into the nucleus, releasing the brake on NOX4 translation. The excessive production of H2O2 by liberated NOX4 further suppresses the translation of the key transcription factor MafA, ultimately preventing its binding to the Ins2 gene promoter and subsequent transcription of insulin. Treatment with a specific NOX4 inhibitor or the antioxidant NAC reversed these effects and alleviated the diabetic symptoms in beta-cell specific Ei24-KO mice. This study revealed a new mechanism through which cells regulate oxidative stress at the translational level, involving an ER-tethered RNA-binding protein that controls the expression of the key H2O2-producing enzyme NOX4.
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Affiliation(s)
- Xintong Pei
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhe Wang
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Wenting He
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shunqin Li
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaowei Chen
- Center for High Throughput Sequencing, Core Facility for Protein Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhen Fan
- Center for High Throughput Sequencing, Core Facility for Protein Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yongguang Lan
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Lin Yuan
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Pingyong Xu
- Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100101, China; Department of Clinical Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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2
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Lee YC, Jou YC, Chou WC, Tsai KL, Shen CH, Lee SD. Ellagic acid protects against angiotensin II-induced hypertrophic responses through ROS-mediated MAPK pathway in H9c2 cells. Environ Toxicol 2024; 39:3253-3263. [PMID: 38356441 DOI: 10.1002/tox.24170] [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] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024]
Abstract
The early myocardial response of hypertension is an elevation of angiotensin-II (Ang-II) concentration, leading to heart failure and cardiac hypertrophy. This hypertrophic event of the heart is mediated by the interaction of Ang type 1 receptors (AT-R1), thereby modulating NADPH oxidase activity in cardiomyocytes, which alters redox status in cardiomyocytes. Ellagic acid (EA) has anti-inflammatory and anti-oxidative capacities. Thus, EA has potential preventive effects on cardiovascular diseases and diabetes. In the last decades, because the protective effect of EA on Ang-II-induced hypertrophic responses is unclear, this study aims to investigate the protective effect of EA in cardiomyocytes. H9c2 cells were treated to Ang-II 1 μM for 24 h to induce cellular damage. We found that EA protected against Ang-II-increased cell surface area and pro-hypertrophic gene expression in H9c2. EA reduced Ang-II-caused AT-R1 upregulation, thereby inhibiting oxidative stress NADPH oxidase activation. EA mitigated Ang-II-enhanced p38 and extracellular-signal-regulated kinase (ERK) phosphorylation. Moreover, EA treatment under Ang-II stimulation also reversed NF-κB activity and iNOS expression. This study shows that EA protects against Ang-II-induced myocardial hypertrophy and attenuates oxidative stress through reactive oxygen species-mediated mitogen-activated protein kinase signaling pathways in H9c2 cells. Thus, EA may be an effective compound for preventing Ang-II-induced myocardial hypertrophy.
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Affiliation(s)
- Ya-Che Lee
- Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chia-Yi City, Taiwan
| | - Yeong-Chin Jou
- Department of Urology, St. Martin De Porres Hospital, Chia-Yi City, Taiwan
- Department of Health and Nutrition Biotechnology, College of Medical and Health Science, Asia University, Taichung City, Taiwan
| | - Wan-Ching Chou
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Kun-Ling Tsai
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
- Institute of Allied Health Science, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Cheng-Huang Shen
- Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chia-Yi City, Taiwan
- Department of Biomedical Sciences, National Chung Cheng University, Min Hsiung, Chia-Yi, Taiwan
| | - Shin-Da Lee
- Department of Physical Therapy, College of Medical and Health Science, Asia University, Taichung City, Taiwan
- Department of Physical Therapy, PhD program in Healthcare Science, China Medical University, Taichung, Taiwan
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3
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Kang KA, Piao MJ, Fernando PDSM, Herath HMUL, Yi JM, Choi YH, Hyun YM, Zhang K, Park CO, Hyun JW. Particulate matter stimulates the NADPH oxidase system via AhR-mediated epigenetic modifications. Environ Pollut 2024; 347:123675. [PMID: 38447650 DOI: 10.1016/j.envpol.2024.123675] [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] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/05/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
Stimulation of human keratinocytes with particulate matter 2.5 (PM2.5) elicits complex signaling events, including a rise in the generation of reactive oxygen species (ROS). However, the mechanisms underlying PM2.5-induced ROS production remain unknown. Here, we show that PM2.5-induced ROS production in human keratinocytes is mediated via the NADPH oxidase (NOXs) system and the Ca2+ signaling pathway. PM2.5 treatment increased the expression of NOX1, NOX4, and a calcium-sensitive NOX, dual oxidase 1 (DUOX1), in human epidermal keratinocyte cell line. PM2.5 bound to aryl hydrocarbon receptor (AhR), and this complex bound to promoter regions of NOX1 and DUOX1, suggesting that AhR acted as a transcription factor of NOX1 and DUOX1. PM2.5 increased the transcription of DUOX1 via epigenetic modification. Moreover, a link between DNA demethylase and histone methyltransferase with the promoter regions of DUOX1 led to an elevation in the expression of DUOX1 mRNA. Interestingly, PM2.5 increased NOX4 expression and promoted the interaction of NOX4 and Ca2+ channels within the cytoplasmic membrane or endoplasmic reticulum, leading to Ca2+ release. The increase in intracellular Ca2+ concentration activated DUOX1, responsible for ROS production. Our findings provide evidence for a PM2.5-mediated ROS-generating system network, in which increased NOX1, NOX4, and DUOX1 expression serves as a ROS signal through AhR and Ca2+ activation.
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Affiliation(s)
- Kyoung Ah Kang
- Department of Biochemistry, College of Medicine, and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, South Korea
| | - Mei Jing Piao
- Department of Biochemistry, College of Medicine, and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, South Korea
| | | | | | - Joo Mi Yi
- Department of Microbiology and Immunology, Inje University College of Medicine, Busan, 47392, South Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dongeui University, Busan, 47340, South Korea
| | - Young-Min Hyun
- Department of Anatomy, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Kelun Zhang
- Department of Dermatology, and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Chang Ook Park
- Department of Dermatology, and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Jin Won Hyun
- Department of Biochemistry, College of Medicine, and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, South Korea.
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4
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Cirilo MAS, Santos VBS, Lima NKS, Muzi-Filho H, Paixão ADO, Vieyra A, Vieira LD. Reactive oxygen species impair Na+ transport and renal components of the renin-angiotensin-aldosterone system after paraquat poisoning. AN ACAD BRAS CIENC 2024; 96:e20230971. [PMID: 38597493 DOI: 10.1590/0001-3765202420230971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/14/2023] [Indexed: 04/11/2024] Open
Abstract
Paraquat (1,1'-dimethyl-4,4'-bipyridyl dichloride) is an herbicide widely used worldwide and officially banned in Brazil in 2020. Kidney lesions frequently occur, leading to acute kidney injury (AKI) due to exacerbated reactive O2 species (ROS) production. However, the consequences of ROS exposure on ionic transport and the regulator local renin-angiotensin-aldosterone system (RAAS) still need to be elucidated at a molecular level. This study evaluated how ROS acutely influences Na+-transporting ATPases and the renal RAAS. Adult male Wistar rats received paraquat (20 mg/kg; ip). After 24 h, we observed body weight loss and elevation of urinary flow and serum creatinine. In the renal cortex, paraquat increased ROS levels, NADPH oxidase and (Na++K+)ATPase activities, angiotensin II-type 1 receptors, tumor necrosis factor-α (TNF-α), and interleukin-6. In the medulla, paraquat increased ROS levels and NADPH oxidase activity but inhibited (Na++K+)ATPase. Paraquat induced opposite effects on the ouabain-resistant Na+-ATPase in the cortex (decrease) and medulla (increase). These alterations, except for increased serum creatinine and renal levels of TNF-α and interleukin-6, were prevented by 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (tempol; 1 mmol/L in drinking water), a stable antioxidant. In summary, after paraquat poisoning, ROS production culminated with impaired medullary function, urinary fluid loss, and disruption of Na+-transporting ATPases and angiotensin II signaling.
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Affiliation(s)
- Marry A S Cirilo
- Federal University of Pernambuco, Department of Physiology and Pharmacology, Professor Moraes Rego Ave., University City, 50670-901 Recife, PE, Brazil
| | - Valéria B S Santos
- Federal University of Pernambuco, Department of Physiology and Pharmacology, Professor Moraes Rego Ave., University City, 50670-901 Recife, PE, Brazil
| | - Natália K S Lima
- Federal University of Pernambuco, Department of Physiology and Pharmacology, Professor Moraes Rego Ave., University City, 50670-901 Recife, PE, Brazil
| | - Humberto Muzi-Filho
- Federal University of Rio de Janeiro, Center for Research in Precision Medicine, First Floor, Carlos Chagas Filho Institute of Biophysics, Carlos Chagas Filho Ave., University City, 21941-904 Rio de Janeiro, RJ, Brazil
- Federal University of Rio de Janeiro, National Center for Structural Biology and Bioimaging/CENABIO, 373 Carlos Chagas Filho Ave., University City, 21941-902 Rio de Janeiro, RJ, Brazil
- National Institute of Science and Technology in Regenerative Medicine-REGENERA, 373 Carlos Chagas Filho Ave., University City, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Ana D O Paixão
- Federal University of Pernambuco, Department of Physiology and Pharmacology, Professor Moraes Rego Ave., University City, 50670-901 Recife, PE, Brazil
| | - Adalberto Vieyra
- Federal University of Rio de Janeiro, Center for Research in Precision Medicine, First Floor, Carlos Chagas Filho Institute of Biophysics, Carlos Chagas Filho Ave., University City, 21941-904 Rio de Janeiro, RJ, Brazil
- Federal University of Rio de Janeiro, National Center for Structural Biology and Bioimaging/CENABIO, 373 Carlos Chagas Filho Ave., University City, 21941-902 Rio de Janeiro, RJ, Brazil
- National Institute of Science and Technology in Regenerative Medicine-REGENERA, 373 Carlos Chagas Filho Ave., University City, 21941-902 Rio de Janeiro, RJ, Brazil
- Grande Rio University, 1160 Professor José de Souza Herdy Street, Building C, Second Floor, 25071-202 Duque de Caxias, RJ, Brazil
| | - Leucio D Vieira
- Federal University of Pernambuco, Department of Physiology and Pharmacology, Professor Moraes Rego Ave., University City, 50670-901 Recife, PE, Brazil
- Federal University of Rio de Janeiro, National Center for Structural Biology and Bioimaging/CENABIO, 373 Carlos Chagas Filho Ave., University City, 21941-902 Rio de Janeiro, RJ, Brazil
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Boscaro C, Schimdt G, Cignarella A, Dal Maso L, Bolego C, Trevisi L. The antiangiogenic effect of digitoxin is dependent on a ROS-elicited RhoA/ROCK pathway activation. Biochem Pharmacol 2024; 222:116049. [PMID: 38342347 DOI: 10.1016/j.bcp.2024.116049] [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] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/16/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
We previously showed that digitoxin inhibits angiogenesis and cancer cell proliferation and migration and these effects were associated to protein tyrosine kinase 2 (FAK) inhibition. Considering the interactions between FAK and Rho GTPases regulating cell cytoskeleton and movement, we investigated the involvement of RhoA and Rac1 in the antiangiogenic effect of digitoxin. Phalloidin staining of human umbilical vein endothelial cells (HUVECs) showed the formation of stress fibers in cells treated with 10 nM digitoxin. By Rhotekin- and Pak1- pull down assays, detecting the GTP-bound form of GTPases, we observed that digitoxin (10-25 nM) induced sustained (0.5-6 h) RhoA activation with no effect on Rac1. Furthermore, inhibition of HUVEC migration and capillary-like tube formation by digitoxin was counteracted by hindering RhoA-ROCK axis with RhoA silencing or Y-27632 treatment. Digitoxin did not decrease p190RhoGAP phosphorylation at Tyr1105 (a site targeted by FAK), suggesting that RhoA activation was independent from FAK inhibition. Because increasing evidence points to a redox regulation of RhoA, we measured intracellular ROS and found that digitoxin treatment enhanced ROS levels in a concentration-dependent manner (1-25 nM). Notably, the flavoprotein inhibitor DPI or the pan-NADPH oxidase (NOX) inhibitor VAS-2870 antagonized both ROS increase and RhoA activation by digitoxin. Our results provide evidence that inhibition of HUVEC migration and tube formation by digitoxin is dependent on ROS production by endothelial NOX, which leads to the activation of RhoA/ROCK pathway. Digitoxin effects on proteins regulating cytoskeletal organization and cell motility could have a wider impact on cancer progression, beyond the antiangiogenic activity.
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Affiliation(s)
| | - Gudula Schimdt
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Lucia Dal Maso
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Chiara Bolego
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Lucia Trevisi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy.
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Priyanka, Sharma S, Joshi H, Kumar C, Waseem R, Sharma M. Mycobacterium tuberculosis protein PPE15 (Rv1039c) possesses eukaryote-like SH3 domain that interferes with NADPH Oxidase assembly and Reactive Oxygen Species production. Biochim Biophys Acta Mol Cell Res 2024; 1871:119702. [PMID: 38408543 DOI: 10.1016/j.bbamcr.2024.119702] [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] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
Inhibition of Reactive Oxygen Species (ROS) is one of the strategies that Mycobacterium tuberculosis (Mtb) employs as its defence mechanism. In this study, the role of PPE15 (Rv1039c), a late-stage protein, has been investigated in modulating the cellular ROS. We discovered PPE15 to be a secretory protein that downregulates ROS generation in THP1 macrophages. Our in-silico analysis revealed the presence of a eukaryote-like SH3 (SH3e) domain in PPE15. The predicted SH3e-domain of PPE15 was found to interact with cytosolic components of NADPH Oxidase (NOX), p67phox and p47phox through molecular docking. In-vitro experiments using THP1 macrophages showed a diminished NADP/NADPH ratio, indicating reduced NOX activity. We also observed increased levels of p67phox and p47phox in the cytoplasmic fraction of PPE15 treated macrophages as compared to the plasma membrane fraction. To understand the role of the SH3e-domain in ROS modulation, this domain was deleted from the full-length PPE15 (PPE15-/-SH3). We observed an increase in cellular ROS and NADP/NADPH ratio in response to PPE15-/-SH3 protein. The interaction of PPE15-/-SH3 with p67phox or p47phox was also reduced in the cytoplasm, indicating migration of NOX subunits to the plasma membrane. Additionally, M. smegmatis expressing PPE15 was observed to be resistant to oxidative stress with significant intracellular survival in THP1 macrophages as compared to M. smegmatis expressing PPE15-/-SH3. These observations suggest that the SH3e-domain of PPE15 interferes with ROS generation by sequestering NOX components that inhibit NOX assembly at the cell membrane. Therefore, PPE15 acts like a molecular mimic of SH3-domain carrying eukaryotic proteins that can be employed by Mtb at late stages of infection for its survival. These findings give us new insights about the pathogen evading strategy of Mtb which may help in improving the therapeutics for TB treatment.
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Affiliation(s)
- Priyanka
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
| | - Sadhna Sharma
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
| | - Hemant Joshi
- School of Biotechnology, Jawaharlal Nehru University, Delhi, India
| | - Chanchal Kumar
- Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Rashid Waseem
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Monika Sharma
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
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Cammarata I, Pinna V, Pacella I, Rotella I, Soresina A, Badolato R, Plebani A, Pignata C, Cirillo E, Zicari AM, Violi F, Carnevale R, Loffredo L, Piconese S. In adult X-CGD patients, regulatory T cells are expanded while activated T cells display a NOX2-independent ROS increase. Immunol Lett 2024; 266:106839. [PMID: 38309375 DOI: 10.1016/j.imlet.2024.106839] [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] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 01/19/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024]
Abstract
The X-linked chronic granulomatous disease (X-CGD), a rare genetic disease characterised by recurrent infections, is caused by mutations of NOX2. Significant proportions of X-CGD patients display signs of immune dysregulation. Regulatory T cells (Tregs) are CD4+T lymphocytes that expand in active inflammation and prevent autoimmune disorders. Here we asked whether X-CGD is associated to Treg dysfunctions in adult patients. To this aim, the frequency of Tregs was analysed through intracellular flow cytometry in a cohort of adult X-CGD patients, carriers and controls. We found that Tregs were significantly expanded and activated in blood of adult X-CGD patients, and this was associated with activation of conventional CD4+T cells (Tconvs). T cell activation was characterised by accumulation of intracellular ROS, not derived from NOX2 but likely produced by cellular metabolism. The higher TNF production by Tconvs in X-CGD patients might contribute to the expansion of Tregs through the TNFR2 receptor. In summary, our data indicate that Tregs expand in adult X-CGD in response to immune activation, and that the increase of NOX2-independent ROS content is a feature of activated T cells.
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Affiliation(s)
- Ilenia Cammarata
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy; Neuroimmunology Unit, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Valeria Pinna
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Ilenia Pacella
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Ivano Rotella
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Annarosa Soresina
- Department of Clinical and Experimental Sciences, Paediatrics Clinic and Institute for Molecular Medicine A. Nocivelli, ASST-Spedali Civili of Brescia, University of Brescia, Brescia, Italy
| | - Raffaele Badolato
- Department of Clinical and Experimental Sciences, Paediatrics Clinic and Institute for Molecular Medicine A. Nocivelli, ASST-Spedali Civili of Brescia, University of Brescia, Brescia, Italy
| | - Alessandro Plebani
- Department of Clinical and Experimental Sciences, Paediatrics Clinic and Institute for Molecular Medicine A. Nocivelli, ASST-Spedali Civili of Brescia, University of Brescia, Brescia, Italy
| | - Claudio Pignata
- Department of Translational Medical Sciences - Section of Pediatrics, Federico II University of Naples, Naples, Italy
| | - Emilia Cirillo
- Department of Translational Medical Sciences - Section of Pediatrics, Federico II University of Naples, Naples, Italy
| | - Anna Maria Zicari
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Francesco Violi
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy; Mediterranea Cardiocentro-Napoli, Naples, Italy
| | - Roberto Carnevale
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy; IRCCS Neuromed, Località Camerelle, Pozzilli, Italy
| | - Lorenzo Loffredo
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Silvia Piconese
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy; Neuroimmunology Unit, IRCCS Fondazione Santa Lucia, Rome, Italy; Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.
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Lamb FS, Choi H, Miller MR, Stark RJ. Vascular Inflammation and Smooth Muscle Contractility: The Role of Nox1-Derived Superoxide and LRRC8 Anion Channels. Hypertension 2024; 81:752-763. [PMID: 38174563 PMCID: PMC10954410 DOI: 10.1161/hypertensionaha.123.19434] [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: 01/05/2024]
Abstract
Vascular inflammation underlies the development of hypertension, and the mechanisms by which it increases blood pressure remain the topic of intense investigation. Proinflammatory factors including glucose, salt, vasoconstrictors, cytokines, wall stress, and growth factors enhance contractility and impair relaxation of vascular smooth muscle cells. These pathways share a dependence upon redox signaling, and excessive activation promotes oxidative stress that promotes vascular aging. Vascular smooth muscle cell phenotypic switching and migration into the intima contribute to atherosclerosis, while hypercontractility increases systemic vascular resistance and vasospasm that can trigger ischemia. Here, we review factors that drive the initiation and progression of this vasculopathy in vascular smooth muscle cells. Emphasis is placed on the contribution of reactive oxygen species generated by the Nox1 NADPH oxidase which produces extracellular superoxide (O2•-). The mechanisms of O2•- signaling remain poorly defined, but recent evidence demonstrates physical association of Nox1 with leucine-rich repeat containing 8 family volume-sensitive anion channels. These may provide a pathway for influx of O2•- to the cytoplasm, creating an oxidized cytoplasmic nanodomain where redox-based signals can affect both cytoskeletal structure and vasomotor function. Understanding the mechanistic links between inflammation, O2•- and vascular smooth muscle cell contractility may facilitate targeting of anti-inflammatory therapy in hypertension.
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Affiliation(s)
- Fred S Lamb
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Hyehun Choi
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Michael R Miller
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Ryan J Stark
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
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Amadio P, Sandrini L, Zarà M, Barbieri SS, Ieraci A. NADPH-oxidases as potential pharmacological targets for thrombosis and depression comorbidity. Redox Biol 2024; 70:103060. [PMID: 38310682 PMCID: PMC10848036 DOI: 10.1016/j.redox.2024.103060] [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] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/06/2024] Open
Abstract
There is a complex interrelationship between the nervous system and the cardiovascular system. Comorbidities of cardiovascular diseases (CVD) with mental disorders, and vice versa, are prevalent. Adults with mental disorders such as anxiety and depression have a higher risk of developing CVD, and people with CVD have an increased risk of being diagnosed with mental disorders. Oxidative stress is one of the many pathways associated with the pathophysiology of brain and cardiovascular disease. Nicotinamide adenine dinucleotide phosphate oxidase (NOX) is one of the major generators of reactive oxygen species (ROS) in mammalian cells, as it is the enzyme that specifically produces superoxide. This review summarizes recent findings on the consequences of NOX activation in thrombosis and depression. It also discusses the therapeutic effects and pharmacological strategies of NOX inhibitors in CVD and brain disorders. A better comprehension of these processes could facilitate the development of new therapeutic approaches for the prevention and treatment of the comorbidity of thrombosis and depression.
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Affiliation(s)
- Patrizia Amadio
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Leonardo Sandrini
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Marta Zarà
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Silvia S Barbieri
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy.
| | - Alessandro Ieraci
- Department of Theoretical and Applied Sciences, eCampus University, 22060, Novedrate (CO), Italy; Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156, Milan, Italy.
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10
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Shvetsova AA, Khlystova MA, Makukha YA, Shateeva VS, Borzykh AA, Gaynullina DK, Tarasova OS. Reactive oxygen species augment contractile responses of saphenous artery in 10-15-day-old but not adult rats: Substantial role of NADPH oxidases. Free Radic Biol Med 2024; 216:24-32. [PMID: 38460742 DOI: 10.1016/j.freeradbiomed.2024.03.005] [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: 01/31/2024] [Revised: 03/02/2024] [Accepted: 03/07/2024] [Indexed: 03/11/2024]
Abstract
Reactive oxygen species (ROS) produced by NADPH oxidases (NOX, a key source of ROS in vascular cells) are involved in the regulation of vascular tone, but this has been explored mainly for adult organisms. Importantly, the mechanisms of vascular tone regulation differ significantly in early postnatal ontogenesis and adulthood, while the vasomotor role of ROS in immature systemic arteries is poorly understood. We tested the hypothesis that the functional contribution of NADPH oxidase-derived ROS to the regulation of peripheral arterial tone is higher in the early postnatal period than in adulthood. We studied saphenous arteries from 10- to 15-day-old ("young") and 3- to 4-month-old ("adult") male rats using lucigenin-enhanced chemiluminescence, quantitative PCR, Western blotting, and isometric myography. We demonstrated that both basal and NADPH-stimulated superoxide anion radical (O2•-) production was significantly higher in the arteries from young in comparison to adult rats. Importantly, pan-inhibitor of NADPH oxidase VAS2870 (10 μM) reduced NADPH-induced O2•- production in arteries of young rats. Saphenous arteries of both young and adult rats demonstrated high levels of Nox2 and Nox4 mRNAs, while Nox1 and Nox3 mRNAs were not detected. The protein contents of NOX2 and NOX4 were significantly higher in arterial tissue of young compared to adult animals. Moreover, VAS2870 (10 μM) had no effect on methoxamine-induced contractile responses of adult arteries but decreased them significantly in young arteries; such effect of VAS2870 persisted after removal of the endothelium. Finally, NOX2 inhibitor GSK2795039 (10 μM), but not NOX1/4 inhibitor GKT137831 (10 μM) weakened methoxamine-induced contractile responses of arteries from young rats. Thus, ROS produced by NOX2 have a pronounced contractile influence in saphenous artery smooth muscle cells of young, but not adult rats, which is associated with the increased vascular content of NOX2 protein at this age.
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Affiliation(s)
- Anastasia A Shvetsova
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia.
| | - Margarita A Khlystova
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia
| | - Yulia A Makukha
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia
| | - Valentina S Shateeva
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia
| | - Anna A Borzykh
- Laboratory of Exercise Physiology, State Research Center of the Russian Federation-Institute of Biomedical Problems, Russian Academy of Sciences, 123007, Moscow, Russia
| | - Dina K Gaynullina
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia; Department of Physiology, Russian National Research Medical University, 117997, Moscow, Russia
| | - Olga S Tarasova
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234, Moscow, Russia; Laboratory of Exercise Physiology, State Research Center of the Russian Federation-Institute of Biomedical Problems, Russian Academy of Sciences, 123007, Moscow, Russia
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11
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Yeh TY, Chu WJ, Huang YS. GM1 ganglioside protects against LPS-induced neuroinflammatory and oxidative responses by inhibiting the activation of Akt, TAK1 and NADPH oxidase in MG6 microglial cells. Glycobiology 2024; 34:cwad087. [PMID: 37935390 DOI: 10.1093/glycob/cwad087] [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: 09/04/2022] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 11/09/2023] Open
Abstract
GM1 is a major brain ganglioside that exerts neurotrophic, neuroprotective and antineuroinflammatory effects. The aim of this study was to obtain insights into the antineuroinflammatory mechanisms of exogenous GM1 in lipopolysaccharide (LPS)-stimulated MG6 mouse transformed microglial cell line. First, we found that GM1 prevented the LPS-induced transformation of microglia into an amoeboid-like shape. GM1 treatment inhibited LPS-induced expression of inducible nitric oxide synthase, cyclooxygenase-2 (COX-2), and proinflammatory cytokines such as TNF-α, IL-1β and IL-6 in MG6 cells. In LPS-treated mice, GM1 also reduced striatal microglia activation and attenuated COX-2 expression. Subsequent mechanistic studies showed that GM1 suppressed LPS-induced nuclear translocation of nuclear factor κB (NF-κB) and activator protein-1 (AP-1), two critical transcription factors responsible for the production of proinflammatory mediators. GM1 exhibited antineuroinflammatory properties by suppressing Akt/NF-κB signaling and the activation of mitogen-activated protein kinases (MAPKs), including p38 MAPK, extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase (JNK). Furthermore, GM1 suppressed LPS-induced activation of transforming growth factor-β-activated kinase 1 (TAK1) and NADPH oxidase 2 (NOX2), upstream regulators of the IκBα/NF-κB and MAPK/AP-1 signaling pathways. GM1 also inhibited NOX-mediated reactive oxygen species (ROS) production and protected against LPS-induced MG6 cell death, suggesting an antioxidant role of GM1. In conclusion, GM1 exerts both antineuroinflammatory and antioxidative effects by inhibiting Akt, TAK1 and NOX2 activation.
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Affiliation(s)
- Ting-Yin Yeh
- Graduate Institute of Life Sciences, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Rd., Neihu Dist, Taipei City 11490, Taiwan
| | - Wen-Jui Chu
- Department of Biology and Anatomy, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Rd., Neihu Dist, Taipei City 11490, Taiwan
| | - Yuahn-Sieh Huang
- Graduate Institute of Life Sciences, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Rd., Neihu Dist, Taipei City 11490, Taiwan
- Department of Biology and Anatomy, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Rd., Neihu Dist, Taipei City 11490, Taiwan
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12
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Mora-Zenil J, Morán J. ROS produced by NOX promote the neurite growth in a PI3K/Akt independent manner. J Neurosci Res 2024; 102:e25259. [PMID: 37840360 DOI: 10.1002/jnr.25259] [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: 11/09/2022] [Revised: 05/17/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
Reactive oxygen species (ROS) function as signaling molecules in several physiologic and pathologic processes. In central nervous system, ROS are critical for differentiation, migration, polarization, and neurite growth. These actions are mediated by reversible oxidation of target proteins. On the other hand, PI3K/Akt signaling pathway is susceptible to be modulated by ROS and it has been implicated in neurite growth. In this study, we evaluated the participation of ROS in the neurite growth of cultured rat cerebellar granule neurons (CGN), as well as the possible regulation of the PI3K/Akt pathway by ROS during neurite outgrowth. For this purpose, CGN were treated with cellular or mitochondrial antioxidants, or an NOX inhibitor and neurite growth was evaluated. Moreover, to assess the participation Akt in this process, the p-Akt levels were measured in CGN treated with antioxidants or a NOX inhibitor. The effect of antioxidants on the neurite growth in the presence of a PI3K inhibitor was also measured. We found that cellular antioxidants and the NOX inhibitor decreased the neurite growth, but not the mitochondrial antioxidant. Interestingly, the antioxidants increased the p-Akt levels; however, the effect of antioxidants on neurite growth was no dependent on the Akt activity since the inhibitor of PI3K did not modify the antioxidant action on neurite growth. Our results show that the PI3K/Akt pathway participates in neurite growth and that ROS produced by NOX could function as signals in this process; however, this action is not mediated by a redox regulation of Akt activity.
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Affiliation(s)
- Janeth Mora-Zenil
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Julio Morán
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
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13
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Huang YZ, Wu JC, Lu GF, Li HB, Lai SM, Lin YC, Gui LX, Sham JSK, Lin MJ, Lin DC. Pulmonary Hypertension Induces Serotonin Hyperreactivity and Metabolic Reprogramming in Coronary Arteries via NOX1/4-TRPM2 Signaling Pathway. Hypertension 2024; 81:582-594. [PMID: 38174565 DOI: 10.1161/hypertensionaha.123.21345] [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] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Clinical evidence revealed abnormal prevalence of coronary artery (CA) disease in patients with pulmonary hypertension (PH). The mechanistic connection between PH and CA disease is unclear. Serotonin (5-hydroxytryptamine), reactive oxygen species, and Ca2+ signaling have been implicated in both PH and CA disease. Our recent study indicates that NOXs (NADPH [nicotinamide adenine dinucleotide phosphate] oxidases) and TRPM2 (transient receptor potential cation channel subfamily M member 2) are key components of their interplay. We hypothesize that activation of the NOX-TRPM2 pathway facilitates the remodeling of CA in PH. METHODS Left and right CAs from chronic hypoxia and monocrotaline-induced PH rats were collected to study vascular reactivity, gene expression, metabolism, and mitochondrial function. Inhibitors or specific siRNA were used to examine the pathological functions of NOX1/4-TRPM2 in CA smooth muscle cells. RESULTS Significant CA remodeling and 5-hydroxytryptamine hyperreactivity in the right CA were observed in PH rats. NOX1/4-mediated reactive oxygen species production coupled with TRPM2-mediated Ca2+ influx contributed to 5-hydroxytryptamine hyperresponsiveness. CA smooth muscle cells from chronic hypoxia-PH rats exhibited increased proliferation, migration, apoptosis, and metabolic reprogramming in an NOX1/4-TRPM2-dependent manner. Furthermore, the NOX1/4-TRPM2 pathway participated in mitochondrial dysfunction, involving mitochondrial DNA damage, reactive oxygen species production, elevated mitochondrial membrane potential, mitochondrial Ca2+ accumulation, and mitochondrial fission. In vivo knockdown of NOX1/4 alleviated PH and suppressed CA remodeling in chronic hypoxia rats. CONCLUSIONS PH triggers an increase in 5-hydroxytryptamine reactivity in the right CA and provokes metabolic reprogramming and mitochondrial disruption in CA smooth muscle cells via NOX1/4-TRPM2 activation. This signaling pathway may play an important role in CA remodeling and CA disease in PH.
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Affiliation(s)
- Yan-Zhen Huang
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Ji-Chun Wu
- Beijing Institutes of Life Science, Chinese Academy of Sciences, China (J.-C.W.)
| | - Gui-Feng Lu
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Hui-Bin Li
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Su-Mei Lai
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Yi-Chen Lin
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Long-Xin Gui
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - James S K Sham
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD (J.S.K.S.)
| | - Mo-Jun Lin
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
| | - Da-Cen Lin
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, Department of Physiology and Pathophysiology, School of Basic Medical Sciences (Y.-Z.H., G.-F.L., H.-B.L., S.-M.L., Y.-C.L., L.-X.G., M.-J.L., D.-C.L.), Fujian Medical University, Fuzhou, China
- Department of Epidemiology and Health Statistics, School of Public Health (D.-C.L.), Fujian Medical University, Fuzhou, China
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14
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Larion S, Padgett CA, Mintz JD, Thompson JA, Butcher JT, Belin de Chantemèle EJ, Haigh S, Khurana S, Fulton DJ, Stepp DW. NADPH oxidase 1 promotes hepatic steatosis in obese mice and is abrogated by augmented skeletal muscle mass. Am J Physiol Gastrointest Liver Physiol 2024; 326:G264-G273. [PMID: 38258487 DOI: 10.1152/ajpgi.00153.2023] [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: 07/20/2023] [Revised: 12/28/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
Exercise as a lifestyle modification is a frontline therapy for nonalcoholic fatty liver disease (NAFLD), but how components of exercise attenuate steatosis is unclear. To uncouple the effect of increased muscle mass from weight loss in obesity, myostatin knockout mice were bred on a lean and obese db/db background. Myostatin deletion increases gastrocnemius (Gastrocn.) mass and reduces hepatic steatosis and hepatic sterol regulatory element binding protein 1 (Srebp1) expression in obese mice, with no impact on adiposity or body weight. Interestingly, hypermuscularity reduces hepatic NADPH oxidase 1 (Nox1) expression but not NADPH oxidase 4 (Nox4) in db/db mice. To evaluate a deterministic function of Nox1 on steatosis, Nox1 knockout mice were bred on a lean and db/db background. NOX1 deletion significantly attenuates hepatic oxidant stress, steatosis, and Srebp1 programming in obese mice to parallel hypermuscularity, with no improvement in adiposity, glucose control, or hypertriglyceridemia to suggest off-target effects. Directly assessing the role of NOX1 on SREBP1, insulin (Ins)-mediated SREBP1 expression was significantly increased in either NOX1, NADPH oxidase organizer 1 (NOXO1), and NADPH oxidase activator 1 (NOXA1) or NOX5-transfected HepG2 cells versus ?-galactosidase control virus, indicating superoxide is the key mechanistic agent for the actions of NOX1 on SREBP1. Metabolic Nox1 regulators were evaluated using physiological, genetic, and diet-induced animal models that modulated upstream glucose and insulin signaling, identifying hyperinsulinemia as the key metabolic derangement explaining Nox1-induced steatosis in obesity. GEO data revealed that hepatic NOX1 predicts steatosis in obese humans with biopsy-proven NAFLD. Taken together, these data suggest that hypermuscularity attenuates Srebp1 expression in db/db mice through a NOX1-dependent mechanism.NEW & NOTEWORTHY This study documents a novel mechanism by which changes in body composition, notably increased muscle mass, protect against fatty liver disease. This mechanism involves NADPH oxidase 1 (NOX1), an enzyme that increases superoxide and increases insulin signaling, leading to increased fat accumulation in the liver. NOX1 may represent a new early target for preventing fatty liver to stave off later liver diseases such as cirrhosis or liver cancer.
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Affiliation(s)
- Sebastian Larion
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Caleb A Padgett
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - James D Mintz
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Jennifer A Thompson
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - Joshua T Butcher
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Eric J Belin de Chantemèle
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Stephen Haigh
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Sandeep Khurana
- Division of Gastroenterology, Geisinger Health System, Danville, Pennsylvania, United States
| | - David J Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - David W Stepp
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
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15
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Gibbings SL, Haist KC, Redente EF, Henson PM, Bratton DL. TNFα: TNFR1 signaling inhibits maturation and maintains the pro-inflammatory programming of monocyte-derived macrophages in murine chronic granulomatous disease. Front Immunol 2024; 15:1354836. [PMID: 38404573 PMCID: PMC10884288 DOI: 10.3389/fimmu.2024.1354836] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/24/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Loss of NADPH oxidase activity results in proinflammatory macrophages that contribute to hyperinflammation in Chronic Granulomatous Disease (CGD). Previously, it was shown in a zymosan-induced peritonitis model that gp91phox-/- (CGD) monocyte-derived macrophages (MoMacs) fail to phenotypically mature into pro-resolving MoMacs characteristic of wild type (WT) but retain the ability to do so when placed in the WT milieu. Accordingly, it was hypothesized that soluble factor(s) in the CGD milieu thwart appropriate programming. Methods We sought to identify key constituents using ex vivo culture of peritoneal inflammatory leukocytes and their conditioned media. MoMac phenotyping was performed via flow cytometry, measurement of efferocytic capacity and multiplex analysis of secreted cytokines. Addition of exogenous TNFα, TNFα neutralizing antibody and TNFR1-/- MoMacs were used to study the role of TNFα: TNFR1 signaling in MoMac maturation. Results More extensive phenotyping defined normal MoMac maturation and demonstrated failure of maturation of CGD MoMacs both ex vivo and in vivo. Protein components, and specifically TNFα, produced and released by CGD neutrophils and MoMacs into conditioned media was identified as critical to preventing maturation. Exogenous addition of TNFα inhibited WT MoMac maturation, and its neutralization allowed maturation of cultured CGD MoMacs. TNFα neutralization also reduced production of IL-1β, IL-6 and CXCL1 by CGD cells though these cytokines played no role in MoMac programming. MoMacs lacking TNFR1 matured more normally in the CGD milieu both ex vivo and following adoptive transfer in vivo. Discussion These data lend mechanistic insights into the utility of TNFα blockade in CGD and to other diseases where such therapy has been shown to be beneficial.
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Affiliation(s)
- Sophie L. Gibbings
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
| | - Kelsey C. Haist
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
| | - Elizabeth F. Redente
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado Denver, Aurora, CO, United States
| | - Peter M. Henson
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado Denver, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado Denver, Aurora, CO, United States
| | - Donna L. Bratton
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Pediatrics, University of Colorado Denver, Aurora, CO, United States
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16
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Bi YW, Li LS, Ru N, Zhang B, Lei X. Nicotinamide adenine dinucleotide phosphate oxidase in pancreatic diseases: Mechanisms and future perspectives. World J Gastroenterol 2024; 30:429-439. [PMID: 38414585 PMCID: PMC10895600 DOI: 10.3748/wjg.v30.i5.429] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/17/2023] [Accepted: 01/12/2024] [Indexed: 01/31/2024] Open
Abstract
Pancreatitis and pancreatic cancer (PC) stand as the most worrisome ailments affecting the pancreas. Researchers have dedicated efforts to unraveling the mechanisms underlying these diseases, yet their true nature continues to elude their grasp. Within this realm, oxidative stress is often believed to play a causal and contributory role in the development of pancreatitis and PC. Excessive accumulation of reactive oxygen species (ROS) can cause oxidative stress, and the key enzyme responsible for inducing ROS production in cells is nicotinamide adenine dinucleotide phosphate hydrogen oxides (NOX). NOX contribute to pancreatic fibrosis and inflammation by generating ROS that injure acinar cells, activate pancreatic stellate cells, and mediate macrophage polarization. Excessive ROS production occurs during malignant transformation and pancreatic carcinogenesis, creating an oxidative microenvironment that can cause abnormal apoptosis, epithelial to mesenchymal transition and genomic instability. Therefore, understanding the role of NOX in pancreatic diseases contributes to a more in-depth exploration of the exact pathogenesis of these diseases. In this review, we aim to summarize the potential roles of NOX and its mechanism in pancreatic disorders, aiming to provide novel insights into understanding the mechanisms underlying these diseases.
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Affiliation(s)
- Ya-Wei Bi
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Long-Song Li
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Nan Ru
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Bo Zhang
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao Lei
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
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17
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André-Lévigne D, Pignel R, Boet S, Jaquet V, Kalbermatten DF, Madduri S. Role of Oxygen and Its Radicals in Peripheral Nerve Regeneration: From Hypoxia to Physoxia to Hyperoxia. Int J Mol Sci 2024; 25:2030. [PMID: 38396709 PMCID: PMC10888612 DOI: 10.3390/ijms25042030] [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: 12/26/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Oxygen is compulsory for mitochondrial function and energy supply, but it has numerous more nuanced roles. The different roles of oxygen in peripheral nerve regeneration range from energy supply, inflammation, phagocytosis, and oxidative cell destruction in the context of reperfusion injury to crucial redox signaling cascades that are necessary for effective axonal outgrowth. A fine balance between reactive oxygen species production and antioxidant activity draws the line between physiological and pathological nerve regeneration. There is compelling evidence that redox signaling mediated by the Nox family of nicotinamide adenine dinucleotide phosphate (NADPH) oxidases plays an important role in peripheral nerve regeneration. Further research is needed to better characterize the role of Nox in physiological and pathological circumstances, but the available data suggest that the modulation of Nox activity fosters great therapeutic potential. One of the promising approaches to enhance nerve regeneration by modulating the redox environment is hyperbaric oxygen therapy. In this review, we highlight the influence of various oxygenation states, i.e., hypoxia, physoxia, and hyperoxia, on peripheral nerve repair and regeneration. We summarize the currently available data and knowledge on the effectiveness of using hyperbaric oxygen therapy to treat nerve injuries and discuss future directions.
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Affiliation(s)
- Dominik André-Lévigne
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Rodrigue Pignel
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Sylvain Boet
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, ON K1H 8L6, Canada
- Ottawa Hospital Research Institute, Clinical Epidemiology Program, Department of Innovation in Medical Education, University of Ottawa, Ottawa, ON K1H 8L6, Canada
- Institut du Savoir Montfort, Ottawa, ON K1K 0T2, Canada
| | - Vincent Jaquet
- Department of Cell Physiology and Metabolism, University of Geneva, 1205 Geneva, Switzerland
- READS Unit, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Daniel F. Kalbermatten
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
| | - Srinivas Madduri
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
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18
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Zhao M, Lei J, Deng F, Zhao C, Xu T, Ji B, Fu M, Wang X, Sun M, Zhang M, Gao Q. Gestational Hypoxia Impaired Endothelial Nitric Oxide Synthesis Via miR-155-5p/NADPH Oxidase/Reactive Oxygen Species Axis in Male Offspring Vessels. J Am Heart Assoc 2024; 13:e032079. [PMID: 38240225 DOI: 10.1161/jaha.123.032079] [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: 08/03/2023] [Accepted: 12/08/2023] [Indexed: 02/07/2024]
Abstract
BACKGROUND Nitric oxide (NO) is the most important vasodilator secreted by vascular endothelial cells, and its abnormal synthesis is involved in the development of cardiovascular disease. The prenatal period is a critical time for development and largely determines lifelong vascular health in offspring. Given the high incidence and severity of gestational hypoxia in mid-late pregnancy, it is urgent to further explore whether it affects the long-term synthesis of NO in offspring vascular endothelial cells. METHODS AND RESULTS Pregnant Sprague-Dawley rats were housed in a normoxic or hypoxic (10.5% O2) chamber from gestation days 10 to 20. The thoracic aortas of fetal and adult male offspring were isolated for experiments. Gestational hypoxia significantly reduces the NO-dependent vasodilation mediated by acetylcholine in both the fetal and adult offspring thoracic aorta rings. Meanwhile, acetylcholine-induced NO synthesis is impaired in vascular endothelial cells from hypoxic offspring thoracic aortas. We demonstrate that gestational hypoxic offspring exhibit a reduced endothelial NO synthesis capacity, primarily due to increased expression of NADPH oxidase 2 and enhanced reactive oxygen species. Additionally, gestational hypoxic offspring show elevated levels of miR-155-5p in vascular endothelial cells, which is associated with increased expression of NADPH oxidase 2 and reactive oxygen species generation, as well as impaired NO synthesis. CONCLUSIONS The present study is the first to demonstrate that gestational hypoxia impairs endothelial NO synthesis via the miR-155-5p/NADPH oxidase 2/reactive oxygen species axis in offspring vessels. These novel findings indicate that the detrimental effects of gestational hypoxia on fetal vascular function can persist into adulthood, providing new insights into the development of vascular diseases.
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Affiliation(s)
- Meng Zhao
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University Jinan Shandong China
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
- Department of Obstetrics and Gynecology The Third People's Hospital of Bengbu Affiliated to Bengbu Medical College Bengbu Anhui Province China
| | - Jiahui Lei
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Fengying Deng
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Chenxuan Zhao
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Ting Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Bingyu Ji
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Mengyu Fu
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
| | - Xietong Wang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University Jinan Shandong China
| | - Miao Sun
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University Jinan Shandong China
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
- Center for Medical Genetics and Prenatal Diagnosis, Key Laboratory of Birth Defect Prevention and Genetic Medicine of Shandong Health Commission Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University Jinan Shandong China
| | - Meihua Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University Jinan Shandong China
| | - Qinqin Gao
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University Jinan Shandong China
- Institute for Fetology, The First Affiliated Hospital of Soochow University Suzhou China
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19
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Pham TD, Verlander JW, Chen C, Pech V, Kim HI, Kim YH, Weiner ID, Milne GL, Zent R, Bock F, Brown D, Eaton A, Wall SM. Angiotensin II acts through Rac1 to upregulate pendrin: role of NADPH oxidase. Am J Physiol Renal Physiol 2024; 326:F202-F218. [PMID: 38059296 DOI: 10.1152/ajprenal.00139.2023] [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: 05/22/2023] [Revised: 11/14/2023] [Accepted: 11/14/2023] [Indexed: 12/08/2023] Open
Abstract
Angiotensin II increases apical plasma membrane pendrin abundance and function. This study explored the role of the small GTPase Rac1 in the regulation of pendrin by angiotensin II. To do this, we generated intercalated cell (IC) Rac1 knockout mice and observed that IC Rac1 gene ablation reduced the relative abundance of pendrin in the apical region of intercalated cells in angiotensin II-treated mice but not vehicle-treated mice. Similarly, the Rac1 inhibitor EHT 1864 reduced apical pendrin abundance in angiotensin II-treated mice, through a mechanism that does not require aldosterone. This IC angiotensin II-Rac1 signaling cascade modulates pendrin subcellular distribution without significantly changing actin organization. However, NADPH oxidase inhibition with APX 115 reduced apical pendrin abundance in vivo in angiotensin II-treated mice. Moreover, superoxide dismutase mimetics reduced Cl- absorption in angiotensin II-treated cortical collecting ducts perfused in vitro. Since Rac1 is an NADPH subunit, Rac1 may modulate pendrin through NADPH oxidase-mediated reactive oxygen species production. Because pendrin gene ablation blunts the pressor response to angiotensin II, we asked if pendrin blunts the angiotensin II-induced increase in kidney superoxide. Although kidney superoxide was similar in vehicle-treated wild-type and pendrin knockout mice, it was lower in angiotensin II-treated pendrin-null kidneys than in wild-type kidneys. We conclude that angiotensin II acts through Rac1, independently of aldosterone, to increase apical pendrin abundance. Rac1 may stimulate pendrin, at least partly, through NADPH oxidase. This increase in pendrin abundance contributes to the increment in blood pressure and kidney superoxide content seen in angiotensin II-treated mice.NEW & NOTEWORTHY This study defines a new signaling mechanism by which angiotensin II modulates oxidative stress and blood pressure.
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Affiliation(s)
- Truyen D Pham
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - Jill W Verlander
- Division of Nephrology, Hypertension and Renal Transplantation, The University of Florida College of Medicine, Gainesville, Florida, United States
| | - Chao Chen
- Division of Nephrology, Hypertension and Renal Transplantation, The University of Florida College of Medicine, Gainesville, Florida, United States
| | - Vladimir Pech
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - Hailey I Kim
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - Young Hee Kim
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - I David Weiner
- Division of Nephrology, Hypertension and Renal Transplantation, The University of Florida College of Medicine, Gainesville, Florida, United States
- Nephrology and Hypertension Section, Gainesville Veterans Affairs Medical Center, Gainesville, Florida, United States
| | - Ginger L Milne
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Roy Zent
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Department of Veterans Affairs Hospital, Nashville, Tennessee, United States
| | - Fabian Bock
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Department of Veterans Affairs Hospital, Nashville, Tennessee, United States
| | - Dennis Brown
- Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States
| | - Amity Eaton
- Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States
| | - Susan M Wall
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
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20
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Liu B, Xia L, Li Y, Jiang S, Yu W, Zhang L, Shao XM, Xu Z, Xiao D. Prenatal Nicotine Exposure Raises Male Blood Pressure via FTO-Mediated NOX2/ROS Signaling. Hypertension 2024; 81:240-251. [PMID: 37795601 PMCID: PMC10873091 DOI: 10.1161/hypertensionaha.123.21766] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/16/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND Cigarette smoking/nicotine exposure in pregnancy shows an increased risk of hypertension in offspring, but the mechanisms are unclear. This study tested the hypothesis that m6A RNA hypomethylation epigenetically regulates vascular NOX (NADPH oxidase) and reactive oxygen species production, contributing to the fetal programming of a hypertensive phenotype in nicotine-exposed offspring. METHODS Pregnant rats were exposed to episodic chronic intermittent nicotine aerosol (CINA) or saline aerosol control from gestational day 4 to day 21, and experiments were performed in 6-month-old adult offspring. RESULTS Antenatal CINA exposure augmented Ang II (angiotensin II)-stimulated blood pressure response in male, but not female offspring. Moreover, CINA increased vascular NOX2 expression and superoxide production exclusively in male offspring. Inhibition of NOX2 with gp91ds-tat, both ex vivo and in vivo, mitigated the CINA-induced elevation in superoxide production and blood pressure response. Notably, CINA enhanced the expression of vascular m6A demethylase FTO (fat mass and obesity-associated protein), while reducing the total vascular m6A abundance and specific m6A methylation of the NOX2 gene. Additionally, ex vivo inhibition of FTO with FB23-2 attenuated CINA-induced increases in vascular NOX2 expression. In vitro experiments using human umbilical vein endothelial cells demonstrated that nicotine dose-dependently upregulated FTO and NOX2 protein abundance, which were reversed by treatment with the FTO inhibitor FB23-2 or FTO knockdown using siRNAs. CONCLUSIONS This study uncovers a new mechanism: m6A demethylase FTO-mediated epigenetic upregulation of vascular NOX2 signaling in CINA-induced hypertensive phenotype. This insight could lead to a therapeutic target for preventing and treating developmental hypertension programming.
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Affiliation(s)
- Bailin Liu
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
- Perinatology Laboratory, Wuxi Maternity and Child Health Care Hospital, Women’s Hospital of Jiangnan University, Wuxi 214002, China
| | - Liang Xia
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
- Department of Surgical Intensive Care Unit, The First Affiliated hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yong Li
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
| | - Siyi Jiang
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
| | - Wansu Yu
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
| | - Lubo Zhang
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
| | - Xuesi M Shao
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA90095, USA
| | - Zhice Xu
- Perinatology Laboratory, Wuxi Maternity and Child Health Care Hospital, Women’s Hospital of Jiangnan University, Wuxi 214002, China
- Institute for Fetology, First Hospital of Soochow University, 708 Renmin Road, Suzhou 215006, China
| | - Daliao Xiao
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA 92354
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Huang H, Tsui YM, Ho DWH, Chung CYS, Sze KMF, Lee E, Cheung GCH, Zhang VX, Wang X, Lyu X, Ng IOL. LANCL1, a cell surface protein, promotes liver tumor initiation through FAM49B-Rac1 axis to suppress oxidative stress. Hepatology 2024; 79:323-340. [PMID: 37540188 PMCID: PMC10789379 DOI: 10.1097/hep.0000000000000523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/25/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND AND AIMS HCC is an aggressive cancer with a poor clinical outcome. Understanding the mechanisms that drive tumor initiation is important for improving treatment strategy. This study aimed to identify functional cell membrane proteins that promote HCC tumor initiation. APPROACH AND RESULTS Tailor-made siRNA library screening was performed for all membrane protein-encoding genes that are upregulated in human HCC (n = 134), with sphere formation as a surrogate readout for tumor initiation. Upon confirmation of membranous localization by immunofluorescence and tumor initiation ability by limiting dilution assay in vivo, LanC-like protein-1 (LANCL1) was selected for further characterization. LANCL1 suppressed intracellular reactive oxygen species (ROS) and promoted tumorigenicity both in vitro and in vivo. Mechanistically, with mass spectrometry, FAM49B was identified as a downstream binding partner of LANCL1. LANCL1 stabilized FAM49B by blocking the interaction of FAM49B with the specific E3 ubiquitin ligase TRIM21, thus protecting FAM49B from ubiquitin-proteasome degradation. The LANCL1-FAM49B axis suppressed the Rac1-NADPH oxidase-driven ROS production, but this suppression of ROS was independent of the glutathione transferase function of LANCL1. Clinically, HCCs with high co-expression of LANCL1 and FAM49B were associated with more advanced tumor stage, poorer overall survival, and disease-free survival. In addition, anti-LANCL1 antibodies targeting the extracellular N-terminal domain were able to suppress the self-renewal ability, as demonstrated by the sphere formation ability of HCC cells. CONCLUSIONS Our data showed that LANCL1 is a cell surface protein and a key contributor to HCC initiation. Targeting the LANCL1-FAM49B-Rac1-NADPH oxidase-ROS signaling axis may be a promising therapeutic strategy for HCC.
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Affiliation(s)
- Hongyang Huang
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Yu-Man Tsui
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Daniel Wai-Hung Ho
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Clive Yik-Sham Chung
- Department of Pathology, The University of Hong Kong, Hong Kong
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong
| | - Karen Man-Fong Sze
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Eva Lee
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Gary Cheuk-Hang Cheung
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Vanilla Xin Zhang
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Xia Wang
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Xueying Lyu
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Irene Oi-Lin Ng
- Department of Pathology, The University of Hong Kong, Hong Kong
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
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22
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Goto Y, Maki N, Sklenar J, Derbyshire P, Menke FLH, Zipfel C, Kadota Y, Shirasu K. The phagocytosis oxidase/Bem1p domain-containing protein PB1CP negatively regulates the NADPH oxidase RBOHD in plant immunity. New Phytol 2024; 241:1763-1779. [PMID: 37823353 DOI: 10.1111/nph.19302] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/11/2023] [Indexed: 10/13/2023]
Abstract
Perception of pathogen-associated molecular patterns (PAMPs) by surface-localized pattern recognition receptors activates RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD) through direct phosphorylation by BOTRYTIS-INDUCED KINASE 1 (BIK1) and induces the production of reactive oxygen species (ROS). RBOHD activity must be tightly controlled to avoid the detrimental effects of ROS, but little is known about RBOHD downregulation. To understand the regulation of RBOHD, we used co-immunoprecipitation of RBOHD with mass spectrometry analysis and identified PHAGOCYTOSIS OXIDASE/BEM1P (PB1) DOMAIN-CONTAINING PROTEIN (PB1CP). PB1CP negatively regulates RBOHD and the resistance against the fungal pathogen Colletotrichum higginsianum. PB1CP competes with BIK1 for binding to RBOHD in vitro. Furthermore, PAMP treatment enhances the PB1CP-RBOHD interaction, thereby leading to the dissociation of phosphorylated BIK1 from RBOHD in vivo. PB1CP localizes at the cell periphery and PAMP treatment induces relocalization of PB1CP and RBOHD to the same small endomembrane compartments. Additionally, overexpression of PB1CP in Arabidopsis leads to a reduction in the abundance of RBOHD protein, suggesting the possible involvement of PB1CP in RBOHD endocytosis. We found PB1CP, a novel negative regulator of RBOHD, and revealed its possible regulatory mechanisms involving the removal of phosphorylated BIK1 from RBOHD and the promotion of RBOHD endocytosis.
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Affiliation(s)
- Yukihisa Goto
- RIKEN Center for Sustainable Resource Science (CSRS), Plant Immunity Research Group, Suehiro-cho 1-7-22 Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, Zurich, CH-8008, Switzerland
| | - Noriko Maki
- RIKEN Center for Sustainable Resource Science (CSRS), Plant Immunity Research Group, Suehiro-cho 1-7-22 Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Jan Sklenar
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Paul Derbyshire
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Frank L H Menke
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Cyril Zipfel
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, Zurich, CH-8008, Switzerland
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Yasuhiro Kadota
- RIKEN Center for Sustainable Resource Science (CSRS), Plant Immunity Research Group, Suehiro-cho 1-7-22 Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science (CSRS), Plant Immunity Research Group, Suehiro-cho 1-7-22 Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
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23
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Torres MÁ. Unveiling what makes the reactive oxygen species burst transient: the role of PB1CP in plant immunity. New Phytol 2024; 241:1384-1386. [PMID: 38179607 DOI: 10.1111/nph.19502] [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] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
This article is a Commentary on Goto et al. (2024), 241: 1763–1779.
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Affiliation(s)
- Miguel-Ángel Torres
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, UPM, Madrid, 28040, Spain
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24
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Kong L, Ma X, Zhang C, Kim SI, Li B, Xie Y, Yeo IC, Thapa H, Chen S, Devarenne TP, Munnik T, He P, Shan L. Dual phosphorylation of DGK5-mediated PA burst regulates ROS in plant immunity. Cell 2024; 187:609-623.e21. [PMID: 38244548 PMCID: PMC10872252 DOI: 10.1016/j.cell.2023.12.030] [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: 04/17/2023] [Revised: 10/05/2023] [Accepted: 12/21/2023] [Indexed: 01/22/2024]
Abstract
Phosphatidic acid (PA) and reactive oxygen species (ROS) are crucial cellular messengers mediating diverse signaling processes in metazoans and plants. How PA homeostasis is tightly regulated and intertwined with ROS signaling upon immune elicitation remains elusive. We report here that Arabidopsis diacylglycerol kinase 5 (DGK5) regulates plant pattern-triggered immunity (PTI) and effector-triggered immunity (ETI). The pattern recognition receptor (PRR)-associated kinase BIK1 phosphorylates DGK5 at Ser-506, leading to a rapid PA burst and activation of plant immunity, whereas PRR-activated intracellular MPK4 phosphorylates DGK5 at Thr-446, which subsequently suppresses DGK5 activity and PA production, resulting in attenuated plant immunity. PA binds and stabilizes the NADPH oxidase RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD), regulating ROS production in plant PTI and ETI, and their potentiation. Our data indicate that distinct phosphorylation of DGK5 by PRR-activated BIK1 and MPK4 balances the homeostasis of cellular PA burst that regulates ROS generation in coordinating two branches of plant immunity.
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Affiliation(s)
- Liang Kong
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Xiyu Ma
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA.
| | - Chao Zhang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Sung-Il Kim
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Bo Li
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Yingpeng Xie
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - In-Cheol Yeo
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Hem Thapa
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Sixue Chen
- Department of Biology, University of Mississippi, Oxford, MS 38677, USA
| | - Timothy P Devarenne
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Teun Munnik
- Department of Plant Cell Biology, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098XH, the Netherlands
| | - Ping He
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA.
| | - Libo Shan
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA.
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25
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Liu Y, Gong T, Kong X, Sun J, Liu L. XYLEM CYSTEINE PEPTIDASE 1 and its inhibitor CYSTATIN 6 regulate pattern-triggered immunity by modulating the stability of the NADPH oxidase RESPIRATORY BURST OXIDASE HOMOLOG D. Plant Cell 2024; 36:471-488. [PMID: 37820743 PMCID: PMC10827322 DOI: 10.1093/plcell/koad262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023]
Abstract
Plants produce a burst of reactive oxygen species (ROS) after pathogen infection to successfully activate immune responses. During pattern-triggered immunity (PTI), ROS are primarily generated by the NADPH oxidase RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD). RBOHD is degraded in the resting state to avoid inappropriate ROS production; however, the enzyme mediating RBOHD degradation and how to prevent RBOHD degradation after pathogen infection is unclear. In this study, we identified an Arabidopsis (Arabidopsis thaliana) vacuole-localized papain-like cysteine protease, XYLEM CYSTEINE PEPTIDASE 1 (XCP1), and its inhibitor CYSTATIN 6 (CYS6). Pathogen-associated molecular pattern-induced ROS burst and resistance were enhanced in the xcp1 mutant but were compromised in the cys6 mutant, indicating that XCP1 and CYS6 oppositely regulate PTI responses. Genetic and biochemical analyses revealed that CYS6 interacts with XCP1 and depends on XCP1 to enhance PTI. Further experiments showed that XCP1 interacts with RBOHD and accelerates RBOHD degradation in a vacuole-mediated manner. CYS6 inhibited the protease activity of XCP1 toward RBOHD, which is critical for RBOHD accumulation upon pathogen infection. As CYS6, XCP1, and RBOHD are conserved in all plant species tested, our findings suggest the existence of a conserved strategy to precisely regulate ROS production under different conditions by modulating the stability of RBOHD.
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Affiliation(s)
- Yang Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Tingting Gong
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Xiangjiu Kong
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Jiaqi Sun
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Lijing Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China
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Allen LAH. PCNA at the crossroads of human neutrophil activation, metabolism, and survival. J Leukoc Biol 2024; 115:201-204. [PMID: 38057160 DOI: 10.1093/jleuko/qiad153] [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] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
The proliferating cell nuclear antigen scaffold differentially binds hexokinase, procaspase-9, and p47phox to regulate neutrophil metabolism, viability and activation state.
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Affiliation(s)
- Lee-Ann H Allen
- Department of Molecular Microbiology and Immunology, One Hospital Drive, M616B Medical Sciences Building, University of Missouri, Columbia, MO 65212, United States
- Research Division, Harry S. Truman Memorial Veterans' Hospital, 800 Hospital Drive, Columbia, MO 65201, United States
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Entila F, Han X, Mine A, Schulze-Lefert P, Tsuda K. Commensal lifestyle regulated by a negative feedback loop between Arabidopsis ROS and the bacterial T2SS. Nat Commun 2024; 15:456. [PMID: 38212332 PMCID: PMC10784570 DOI: 10.1038/s41467-024-44724-2] [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: 05/09/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024] Open
Abstract
Despite the plant health-promoting effects of plant microbiota, these assemblages also comprise potentially detrimental microbes. How plant immunity controls its microbiota to promote plant health under these conditions remains largely unknown. We find that commensal bacteria isolated from healthy Arabidopsis plants trigger diverse patterns of reactive oxygen species (ROS) production dependent on the immune receptors and completely on the NADPH oxidase RBOHD that selectively inhibited specific commensals, notably Xanthomonas L148. Through random mutagenesis, we find that L148 gspE, encoding a type II secretion system (T2SS) component, is required for the damaging effects of Xanthomonas L148 on rbohD mutant plants. In planta bacterial transcriptomics reveals that RBOHD suppresses most T2SS gene expression including gspE. L148 colonization protected plants against a bacterial pathogen, when gspE was inhibited by ROS or mutation. Thus, a negative feedback loop between Arabidopsis ROS and the bacterial T2SS tames a potentially detrimental leaf commensal and turns it into a microbe beneficial to the host.
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Affiliation(s)
- Frederickson Entila
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany
| | - Xiaowei Han
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan, 430070, China
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China
| | - Akira Mine
- JST PRESTO, Kawaguchi-shi, Saitama, 332-0012, Japan
- Laboratory of Plant Pathology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Paul Schulze-Lefert
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany
| | - Kenichi Tsuda
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany.
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan, 430070, China.
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China.
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Santana-Garrido Á, Durán-Lobato M, Mate A, Martín-Banderas L, Vázquez CM. Ophthalmic wild olive (ACEBUCHE) oil nanoemulsions exert oculoprotective effects against oxidative stress induced by arterial hypertension. Int J Pharm 2024; 649:123602. [PMID: 37967686 DOI: 10.1016/j.ijpharm.2023.123602] [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] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/07/2023] [Accepted: 11/11/2023] [Indexed: 11/17/2023]
Abstract
Oxidative stress plays a key role in several systemic and ocular diseases, including hypertensive eye diseases. In this context, we previously showed that oral administration of wild olive (acebuche, ACE) oil from Olea europaea var. sylvestris can counteract ocular damage secondary to arterial hypertension by modulating excess reactive oxygen species (ROS) produced by the enzyme nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. Therefore, this work describes the development of an ACE oil-based formulation for ocular administration as a local therapy to counteract hypertension-related oxidative damage. Specifically, ACE oil nanoemulsions (NEs) were successfully produced and characterized, exhibiting appropriate features for ophthalmic administration, including a nanometer size (<200 nm), moderate negative ZP, adequate osmolality and pH, and colloidal stability in biorelevant fluids. Likewise, the NEs presented a shear thinning behavior, especially convenient for ocular instillation. In vivo evaluation was performed through either intravitreal injection or topical ophthalmic administration in mice with hypertension induced via administration of Nω-nitro-L-arginine-methyl-ester (L-NAME). Both routes of administration reduced hypertensive morphological alterations and demonstrated a noticeable antioxidant effect thanks to the reduction of the activity/expression of NADPH oxidase in cornea and retina. Thus, an ACE oil ophthalmic formulation represent a promising therapy for ocular pathologies associated with arterial hypertension.
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Affiliation(s)
- Á Santana-Garrido
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - M Durán-Lobato
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain
| | - A Mate
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain.
| | - L Martín-Banderas
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain.
| | - C M Vázquez
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain
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Lv M, Wang Y, Yu J, Kong Y, Zhou H, Zhang A, Wang X. Grass carp Il-2 promotes neutrophil extracellular traps formation via inducing ROS production and autophagy in vitro. Fish Shellfish Immunol 2024; 144:109261. [PMID: 38040137 DOI: 10.1016/j.fsi.2023.109261] [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] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/23/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Interleukin (IL)-2 has been reported to regulate neutrophil functions in humans, mice, pigs and chicken although it is a key regulator of T cells. Consistently, we found that grass carp (Ctenopharyngodon idellus) interleukin-2 (gcIl-2) is capable of modulating the antimicrobial activities of neutrophils via regulating granzyme B- and perforin-like gene expression in our previous study. In the present study, stimulation of gcIl-2 on neutrophil extracellular traps (NETs) formation in grass carp neutrophils was demonstrated by detecting free DNA release, histone H3 citrullination and morphological changes of the cells. Further investigation revealed that reactive oxygen species (ROS) production from NADPH oxidase but not mitochondria was involved in NETosis induced by gcIl-2. Aside from ROS, autophagy was disclosed to be indispensable for NETosis induced by gcIl-2. These converging lines of evidence suggested that fish Il-2 could induce NETs formation via NADPH oxidase-derived ROS- and autophagy-dependent pathways in fish species which is evolutionarily conserved with that in mammals. It is noteworthy that these two pathways did not interplay with each other in Il-2-stimulated NETosis. The mechanisms governing autophagy induced by Il-2 were also explored in the present study, showing that Il-2 modulated the action of high mobility group box 1 (HMGB1) protein to stimulate autophagy, leading to NETs formation in fish neutrophils. These results provided a new insight to the function of Il-2 in fish neutrophils, and a clue about the regulation of NETosis in the lower vertebrates.
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Affiliation(s)
- Mengyuan Lv
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Yawen Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Jinzhi Yu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Yiyun Kong
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Hong Zhou
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Anying Zhang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Xinyan Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
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Asadizade S, Hatami M, Salehipour Bavarsad S, Kabizade B, Shakerian E, Rashidi M. Curcumin Modulates NOX Gene Expression and ROS Production via P-Smad3C in TGF-β-Activated Hepatic Stellate Cells. Iran Biomed J 2024; 28:31-7. [PMID: 38468370 PMCID: PMC10994637 DOI: 10.61186/ibj.4005] [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] [Received: 08/05/2023] [Accepted: 10/25/2023] [Indexed: 03/13/2024]
Abstract
Background Liver fibrosis, associated with hepatic stellate cells (HSCs), occurs when a healthy liver sustains damage, thereby impairing its function. NADPH oxidases (NOXs), specifically isoforms 1, 2, and 4, play a role in reactive oxygen species (ROS) production during hepatic injuries, resulting in fibrosis. Curcumin has shown strong potential in mitigating liver fibrosis. Our research aimed to investigate the effects of curcumin on lowering NOX and ROS levels. This compound was also studied for its effects on NOXs, ROS concentrations through the inhibition of Smad3 phosphorylation in transforming growth factor beta (TGF-β)-activated human HSCs. Methods MTT assay investigated the cytotoxic effects of curcumin on HSCs. The cells were activated by exposure to TGF-β (2 ng/mL) for 24 hours. After activating, the cells were treated with curcumin at 25-150 μM concentrations. After administering curcumin to the cells, we employed RT-PCR and Western blot techniques to evaluate the related gene and protein expression levels. This evaluation was primarily focused on the mRNA expression levels of NOX1, NOX2, NOX4 and phosphorylated Smad3C. Results The mRNA expression level of aforesaid NOXs as well as α-smooth muscle actin (α-SMA), collagen1-α, and ROS levels were significantly reduced following 100 μM curcumin treatment. Furthermore, curcumin significantly decreased the p-Smad3C protein level in TGF-β-activated cells, with fold changes of 3 and 2 observed at 75 and 100 μM, respectively. Conclusion Curcumin decreased the levels of ROS and NOX, as well as the expression of α-SMA and collagen1-α. The primary mechanism for this reduction could be linked to the level of p-Smad3C. Hence, curcumin could serve as an effective therapeutic agent for liver fibrosis.
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Affiliation(s)
| | | | | | | | | | - Mojtaba Rashidi
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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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.
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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
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Jin Z, Jin Q, Chen M, Liu W, Hong H, Jiang Y, Gao X, Qian Y, Wang Z, Liu Q, Wei Z. Toxoplasma gondii-induced neutrophil extracellular traps are relevant to glycolysis, TLR2, and TLR4 MAPK signaling pathway in goats. Parasitol Res 2023; 123:34. [PMID: 38087003 DOI: 10.1007/s00436-023-08041-9] [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] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023]
Abstract
Toxoplasma gondii (T. gondii) exhibits a significantly high prevalence of infection in goats, leading to adverse consequences such as abortion and stillbirth in ewes, thereby posing a substantial challenge to the goat farming industry. Neutrophil extracellular traps (NETs) have been shown to capture T. gondii in goats; however, the precise mechanisms underlying NET release in goats remain poorly understood. Therefore, the aim of our research was to elucidate the involved mechanism. We assessed the cytotoxicity of T. gondii on neutrophils using CCK-8 assay, visualized the structure of T. gondii-induced goat NETs through immunofluorescence, quantified ROS release during T. gondii-induced NET formation using fluorescence microplate analysis, and employed inhibitors targeting TLR 2, TLR4, NADPH oxidase, ERK1/2, and P38 MAPK signaling pathways as well as glycolysis to dissect the mechanisms underlying T. gondii-induced NET release. Within 1 h, T. gondii did not exhibit significant cytotoxicity towards neutrophils in our findings. The formation of typical NET structures induced by T. gondii involved DNA, citrullinated histone 3 (citH3), and neutrophil elastase (NE). Additionally, T. gondii significantly stimulated the release of NETs in goats. The process was accompanied by the production of reactive oxygen species (ROS) mediated through NADPH oxidase, p38, and ERK1/2 signaling pathways. Inhibition of these pathways resulted in a decrease in NET release. Moreover, inhibition of TLR 2, TLR4, and glycolysis also led to a reduction in T. gondii-induced NET release. Overall, our study demonstrates that T. gondii can induce characteristic NET structures and elucidates the involvement of various mechanisms including TLR2/TLR4 signaling pathway activation, NADPH oxidase activity modulation via ROS production regulation through p38 MAPK and ERK1/2 signaling pathways, and glycolysis regulation during the innate immune response against T. gondii infection in goats.
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Affiliation(s)
- Zha Jin
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Qinqin Jin
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Meiyi Chen
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Wei Liu
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Hongrong Hong
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Yuqian Jiang
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Xinxin Gao
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Yuxiao Qian
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Zedong Wang
- Center for Pathogen Biology and Infectious Diseases, International Center of Future Science, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital, Jilin University, Changchun, 130122, Jilin, People's Republic of China
| | - Quan Liu
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China
| | - Zhengkai Wei
- College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, People's Republic of China.
- College of Veterinary Medicine, Southwest University, Chongqing, 400715, People's Republic of China.
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Jang HY, Kim GB, Kim JM, Kang SY, Youn HJ, Park J, Ro SY, Chung EY, Park KH, Kim JS. Fisetin Inhibits UVA-Induced Expression of MMP-1 and MMP-3 through the NOX/ROS/MAPK Pathway in Human Dermal Fibroblasts and Human Epidermal Keratinocytes. Int J Mol Sci 2023; 24:17358. [PMID: 38139186 PMCID: PMC10743569 DOI: 10.3390/ijms242417358] [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: 10/16/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Fisetin is a flavonoid found in plants and has been reported to be effective in various human diseases. However, the effective mechanisms of ultraviolet-A (UVA)-mediated skin damage are not yet clear. In this study, we investigated the protective mechanisms of fisetin regarding UVA-induced human dermal fibroblasts (HDFs) and human epidermal keratinocytes (HEKs) damages. Fisetin showed a cytoprotective effect against UVA irradiation and suppressed matrix metalloproteinases (MMPs), MMP-1, and MMP-3 expression. In addition, fisetin was rescued, which decreased mRNA levels of pro-inflammatory cytokines, reactive oxygen species production, and the downregulation of MAPK/AP-1 related protein and NADPH oxidase (NOX) mRNA levels. Furthermore, UVA-induced MMP-1 and MMP-3 were effectively inhibited by siRNAs to NOX 1 to 5 in HDFs and HEKs. These results indicate that fisetin suppresses UVA-induced damage through the NOX/ROS/MAPK pathway in HDFs and HEKs.
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Affiliation(s)
- Hye-Yeon Jang
- Department of Biochemistry and Molecular Biology, Institute for Medical Sciences, BK21FOUR 21st Century Medical Science Creative Human Resource Development Center, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea; (H.-Y.J.); (G.-B.K.); (J.-M.K.)
- Infectious Diseases Therapeutic Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Gi-Beum Kim
- Department of Biochemistry and Molecular Biology, Institute for Medical Sciences, BK21FOUR 21st Century Medical Science Creative Human Resource Development Center, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea; (H.-Y.J.); (G.-B.K.); (J.-M.K.)
| | - Jeong-Mi Kim
- Department of Biochemistry and Molecular Biology, Institute for Medical Sciences, BK21FOUR 21st Century Medical Science Creative Human Resource Development Center, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea; (H.-Y.J.); (G.-B.K.); (J.-M.K.)
| | - Sang Yull Kang
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Biomedical Research Institute, Jeonbuk National University, Jeonju 54907, Republic of Korea; (S.Y.K.); (H.-J.Y.)
| | - Hyun-Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Biomedical Research Institute, Jeonbuk National University, Jeonju 54907, Republic of Korea; (S.Y.K.); (H.-J.Y.)
| | - Jinny Park
- Department of Medical Oncology and Hematology, Ansan Hospital, Korea University College of Medicine, Ansan 15355, Republic of Korea;
| | - Su Yeon Ro
- Department of Anesthesiology and Pain Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Bucheon 14647, Republic of Korea; (S.Y.R.); (E.-Y.C.)
| | - Eun-Yong Chung
- Department of Anesthesiology and Pain Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Bucheon 14647, Republic of Korea; (S.Y.R.); (E.-Y.C.)
| | - Kwang-Hyun Park
- Department of Emergency Medical Rescue, Nambu University, Gwangju 62271, Republic of Korea
- BioMedical Science Graduate Program (BMSGP), Department of Emergency Medicine, Chonnam National University, Hwasun 58128, Republic of Korea
| | - Jong-Suk Kim
- Department of Biochemistry and Molecular Biology, Institute for Medical Sciences, BK21FOUR 21st Century Medical Science Creative Human Resource Development Center, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea; (H.-Y.J.); (G.-B.K.); (J.-M.K.)
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Shin SH, Ye MK, Lee DW, Choi MH, Geum SY. Aspergillus Enhances Eosinophil and Neutrophil Extracellular DNA Trap Formation in Chronic Rhinosinusitis. Int J Mol Sci 2023; 24:17264. [PMID: 38139091 PMCID: PMC10744233 DOI: 10.3390/ijms242417264] [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: 10/24/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Chronic rhinosinusitis (CRS) is characterized by inflammatory cell infiltration in the sinonasal mucosa. Eosinophil and neutrophil extracellular traps (EETs and NETs, respectively) are prominently found in CRS. This study aimed to investigate the effect of airborne fungi, Alternaria alternata and Aspergillus fumigatus, on EET and NET formation. Nasal epithelial cells, eosinophils, and neutrophils were isolated from eosinophilic CRS (ECRS), non-ECRS (NECRS), and healthy control. We determined eosinophil and neutrophil transepithelial migration after fungal treatment. We then determined the release of EETs and NETs by fungi using Sytox Green staining and determined the role of reactive oxygen species (ROS) using ROS inhibitors. We identified more abundant EETs and NETs in ECRS than in NECRS. A. alternata and A. fumigatus enhanced eosinophil and neutrophil transepithelial migration. A. fumigatus strongly induced EET and NET formation in CRS and, simultaneously, suppressed fungal metabolic activity. EET formation in CRS is associated with nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase and NET formation with NADPH-oxidase and mitochondrial ROS. A. fumigatus, but not A. alternata, induced EET and NET formation, and peripheral blood eosinophils and neutrophils exhibited different immune responses against A. fumigatus following the inflammatory status of the host. Aspergillus-fumigatus-induced EET and NET formation plays a crucial role in CRS pathogenesis.
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Affiliation(s)
- Seung-Heon Shin
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea; (M.-K.Y.); (D.-W.L.); (M.-H.C.); (S.-Y.G.)
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Fan L, Li B, Wang J, Li X, Ma F, Du F, Li H, Lin Y. Multifunctional regulation of NADPH oxidase in growth, microsclerotia formation and virulence in Metarhizium rileyi. Biotechnol Lett 2023; 45:1441-1455. [PMID: 37747666 DOI: 10.1007/s10529-023-03427-2] [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: 03/24/2023] [Revised: 06/28/2023] [Accepted: 07/19/2023] [Indexed: 09/26/2023]
Abstract
OBJECTIVES Microsclerotia (MS), anti-stress structures produced by many filamentous fungi, have been proven to be a great substitute for conidia in the production of insecticides within entomogenous fungi. NADPH oxidase (Nox) is a highly conserved ROS-response protein family that is widespread in eukaryotes and plays distinct roles in environmental fitness among various filamentous fungi. However, it is not clear whether the formation of MS and pathogenicity in entomogenous fungi is regulated by the Nox inside. In this study, we reported the presence of NADPH oxidase homologs in a great potential biocontrol fungus, Metarhizium rileyi, and further showed multiple biological functions. RESULTS Three Nox homologous genes in M. rileyi showed high expression throughout the entire process of MS formation. Targeted deletion of MrNoxA, MrNoxB and MrNoxR all led to a decrease in MS yield and impaired morphology. Moreover, the anti-adversity assay showed that they are indispensable for growth, osmotic pressure and oxidative stress regulation in Metarhizium rileyi. Most importantly, △MrNoxR and △MrNoxA but not △MrNoxB showed a dramatic reduction in virulence via inoculation. The normality of appressoria might be unaffected in mutants since there are no striking differences in virulence compared with WT by topical injections. CONCLUSION Our results revealed that NADPH oxidase plays important roles in growth regulation, MS formation and pathogenicity in M. rileyi, perhaps in the ROS response and hyphal polarity.
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Affiliation(s)
- Liqin Fan
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Bingjie Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Jiahui Wang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Xinxin Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Feilong Ma
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Fang Du
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing, China
| | - Hongli Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China
| | - Yunlong Lin
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
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36
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He Z, Li Q, Xu Y, Zhang D, Pan X. Production of extracellular superoxide radical in microorganisms and its environmental implications: A review. Environ Pollut 2023; 338:122563. [PMID: 37717891 DOI: 10.1016/j.envpol.2023.122563] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/24/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Extracellular superoxide radical (O2•-) is ubiquitous in microbial environments and has significant implications for pollutant transformation. Microbial extracellular O2•- can be produced through multiple pathways, including electron leakage from the respiratory electron transport chain (ETC), NADPH oxidation by the transmembrane NADPH oxidase (NOX), and extracellular reactions. Extracellular O2•- significantly influences the geochemical processes of various substances, including toxic metals and refractory organic pollutants. On one hand, extracellular O2•- can react with variable-valence metals and detoxify certain highly toxic metals, such as As(III), Cr(VI), and Hg(II). On the other hand, extracellular O2•- can directly or indirectly (via Bio-Fenton) degrade many organic pollutants, including a variety of emerging contaminants. In this work, we summarize the production mechanisms of microbial extracellular O2•-, review its roles in the transformation of environmental pollutants, and discuss the potential applications, limiting factors, and future research directions in this field.
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Affiliation(s)
- Zhanfei He
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Qunqun Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Yao Xu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China.
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Reis J, Gorgulla C, Massari M, Marchese S, Valente S, Noce B, Basile L, Törner R, Cox H, Viennet T, Yang MH, Ronan MM, Rees MG, Roth JA, Capasso L, Nebbioso A, Altucci L, Mai A, Arthanari H, Mattevi A. Targeting ROS production through inhibition of NADPH oxidases. Nat Chem Biol 2023; 19:1540-1550. [PMID: 37884805 DOI: 10.1038/s41589-023-01457-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/21/2023] [Indexed: 10/28/2023]
Abstract
NADPH oxidases (NOXs) are transmembrane enzymes that are devoted to the production of reactive oxygen species (ROS). In cancers, dysregulation of NOX enzymes affects ROS production, leading to redox unbalance and tumor progression. Consequently, NOXs are a drug target for cancer therapeutics, although current therapies have off-target effects: there is a need for isoenzyme-selective inhibitors. Here, we describe fully validated human NOX inhibitors, obtained from an in silico screen, targeting the active site of Cylindrospermum stagnale NOX5 (csNOX5). The hits are validated by in vitro and in cellulo enzymatic and binding assays, and their binding modes to the dehydrogenase domain of csNOX5 studied via high-resolution crystal structures. A high-throughput screen in a panel of cancer cells shows activity in selected cancer cell lines and synergistic effects with KRAS modulators. Our work lays the foundation for the development of inhibitor-based methods for controlling the tightly regulated and highly localized ROS sources.
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Affiliation(s)
- Joana Reis
- Department of Biology and Biotechnology Lazzaro Spallanzani, University of Pavia, Pavia, Italy
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Christoph Gorgulla
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Physics, Faculty of Arts and Sciences, Harvard University, Cambridge, MA, USA
| | - Marta Massari
- Department of Biology and Biotechnology Lazzaro Spallanzani, University of Pavia, Pavia, Italy
| | - Sara Marchese
- Department of Biology and Biotechnology Lazzaro Spallanzani, University of Pavia, Pavia, Italy
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy
| | - Beatrice Noce
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Basile
- Department of Biology and Biotechnology Lazzaro Spallanzani, University of Pavia, Pavia, Italy
| | - Ricarda Törner
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Huel Cox
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Thibault Viennet
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Moon Hee Yang
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | | | | | - Lucia Capasso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy.
| | - Haribabu Arthanari
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Andrea Mattevi
- Department of Biology and Biotechnology Lazzaro Spallanzani, University of Pavia, Pavia, Italy.
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38
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Martin JL, Khan A, Grintsevich EE. Actin Isoform Composition and Binding Factors Fine-Tune Regulatory Impact of Mical Enzymes. Int J Mol Sci 2023; 24:16651. [PMID: 38068973 PMCID: PMC10705957 DOI: 10.3390/ijms242316651] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/20/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Mical family enzymes are unusual actin regulators that prime filaments (F-actin) for disassembly via the site-specific oxidation of M44/M47. Filamentous actin acts as a substrate of Mical enzymes, as well as an activator of their NADPH oxidase activity, which leads to hydrogen peroxide generation. Mical enzymes are required for cytokinesis, muscle and heart development, dendritic pruning, and axonal guidance, among other processes. Thus, it is critical to understand how this family of actin regulators functions in different cell types. Vertebrates express six actin isoforms in a cell-specific manner, but MICALs' impact on their intrinsic properties has never been systematically investigated. Our data reveal the differences in the intrinsic dynamics of Mical-oxidized actin isoforms. Furthermore, our results connect the intrinsic dynamics of actin isoforms and their redox state with the patterns of hydrogen peroxide (H2O2) generation by MICALs. We documented that the differential properties of actin isoforms translate into the distinct patterns of hydrogen peroxide generation in Mical/NADPH-containing systems. Moreover, our results establish a conceptual link between actin stabilization by interacting factors and its ability to activate MICALs' NADPH oxidase activity. Altogether, our results suggest that the regulatory impact of MICALs may differ depending on the isoform-related identities of local actin networks.
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Affiliation(s)
| | | | - Elena E. Grintsevich
- Department of Chemistry and Biochemistry, California State University, Long Beach (CSULB), Long Beach, CA 90840, USA
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39
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Ijurko C, Romo-González M, García-Calvo C, Sardina JL, Sánchez-Bernal C, Sánchez-Yagüe J, Elena-Herrmann B, Villaret J, Garrel C, Mondet J, Mossuz P, Hernández-Hernández Á. NOX2 control over energy metabolism plays a role in acute myeloid leukaemia prognosis and survival. Free Radic Biol Med 2023; 209:18-28. [PMID: 37806599 DOI: 10.1016/j.freeradbiomed.2023.10.013] [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: 07/26/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/10/2023]
Abstract
Acute myeloid leukaemia (AML) is a highly heterogeneous disease, however the therapeutic approaches have hardly changed in the last decades. Metabolism rewiring and the enhanced production of reactive oxygen species (ROS) are hallmarks of cancer. A deeper understanding of these features could be instrumental for the development of specific AML-subtypes treatments. NADPH oxidases (NOX), the only cellular system specialised in ROS production, are also involved in leukemic metabolism control. NOX2 shows a variable expression in AML patients, so patients can be classified based on such difference. Here we have analysed whether NOX2 levels are important for AML metabolism control. The lack of NOX2 in AML cells slowdowns basal glycolysis and oxidative phosphorylation (OXPHOS), along with the accumulation of metabolites that feed such routes, and a sharp decrease of glutathione. In addition, we found changes in the expression of 725 genes. Among them, we have discovered a panel of 30 differentially expressed metabolic genes, whose relevance was validated in patients. This panel can segregate AML patients according to CYBB expression, and it can predict patient prognosis and survival. In summary, our data strongly support the relevance of NOX2 for AML metabolism, and highlights the potential of our discoveries in AML prognosis.
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Affiliation(s)
- Carla Ijurko
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain
| | - Marta Romo-González
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain
| | - Clara García-Calvo
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain
| | - José Luis Sardina
- Epigenetic Control of Haematopoiesis Group, Josep Carreras Leukaemia Research Institute, Barcelona, Spain
| | - Carmen Sánchez-Bernal
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain
| | - Jesús Sánchez-Yagüe
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain
| | - Bénédicte Elena-Herrmann
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, GEMELI Platform, Institute for Advanced Biosciences, 38000, Grenoble, France
| | - Joran Villaret
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, GEMELI Platform, Institute for Advanced Biosciences, 38000, Grenoble, France
| | - Catherine Garrel
- Department of Biochemistry, Institute of Biology and Pathology, Hospital of Grenoble Alpes (CHUGA), CS 20217, 38043, Grenoble, CEDEX 9, France
| | - Julie Mondet
- Team "Epigenetic Regulations", Institute for Advanced Biosciences, University Grenoble Alpes (UGA), INSERM U1209/CNRS 5309, 38700, Grenoble, France; Department of Molecular Pathology, Institute of Biology and Pathology, Hospital of Grenoble Alpes (CHUGA), CS 20217, 38043, Grenoble, CEDEX 9, France
| | - Pascal Mossuz
- Team "Epigenetic Regulations", Institute for Advanced Biosciences, University Grenoble Alpes (UGA), INSERM U1209/CNRS 5309, 38700, Grenoble, France; Department of Biological Hematology, Institute of Biology and Pathology, Hospital of Grenoble Alpes (CHUGA), CS 20217, 38043, Grenoble, CEDEX 9, France
| | - Ángel Hernández-Hernández
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Salamanca, 37007, Spain; IBSAL (Instituto de Investigación Biomédica de Salamanca), Salamanca, 37007, Spain.
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40
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Koka S, Surineni S, Singh GB, Boini KM. Contribution of membrane raft redox signalling to visfatin-induced inflammasome activation and podocyte injury. Aging (Albany NY) 2023; 15:12738-12748. [PMID: 38032896 DOI: 10.18632/aging.205243] [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: 09/15/2021] [Accepted: 10/24/2023] [Indexed: 12/02/2023]
Abstract
Recently we have shown that adipokine visfatin-induced NLRP3 inflammasome activation contributes to podocyte injury. However, the molecular mechanisms of how visfatin-induces the Nlrp3 inflammasome activation and podocyte damage is still unknown. The present study tested whether membrane raft (MR) redox signalling pathway plays a central role in visfatin-induced NLRP3 inflammasomes formation and activation in podocytes. Upon visfatin stimulation an aggregation of NADPH oxidase subunits, gp91phox and p47phox was observed in the membrane raft (MR) clusters, forming a MR redox signalling platform in podocytes. The formation of this signalling platform was blocked by prior treatment with MR disruptor MCD or NADPH oxidase inhibitor DPI. In addition, visfatin stimulation significantly increased the colocalization of Nlrp3 with Asc or Nlrp3 with caspase-1, IL-β production, cell permeability in podocytes compared to control cells. Pretreatment with MCD, DPI, WEHD significantly abolished the visfatin-induced colocalization of NLRP3 with Asc or NLRP3 with caspase-1, IL-1β production and cell permeability in podocytes. Furthermore, Immunofluorescence analysis demonstrated that visfatin treatment significantly decreased the podocin and nephrin expression (podocyte damage) and prior treatments with DPI, WEHD, MCD attenuated this visfatin-induced podocin and nephrin reduction. In conclusion, our results suggest that visfatin stimulates membrane raft clustering in the membrane of podocytes to form redox signaling platforms by aggregation and activation of NADPH oxidase subunits enhancing O2·- production and leading to NLRP3 inflammasome activation in podocytes and ultimate podocyte injury.
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Affiliation(s)
- Saisudha Koka
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA
- Department of Pharmaceutical Sciences, Irma Lerma Rangel School of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA
| | - Sreenidhi Surineni
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA
- Division of Biomedical Sciences, University of California, Riverside, CA 92130, USA
| | - Gurinder Bir Singh
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA
| | - Krishna M Boini
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA
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41
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Zhu W, Yang S, Meng D, Wang Q, Ji J. Targeting NADPH Oxidase and Integrin α5β1 to Inhibit Neutrophil Extracellular Traps-Mediated Metastasis in Colorectal Cancer. Int J Mol Sci 2023; 24:16001. [PMID: 37958984 PMCID: PMC10650826 DOI: 10.3390/ijms242116001] [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: 10/10/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Metastasis leads to a high mortality rate in colorectal cancer (CRC). Increased neutrophil extracellular traps (NETs) formation is one of the main causes of metastasis. However, the mechanism of NETs-mediated metastasis remains unclear and effective treatments are lacking. In this study, we found neutrophils from CRC patients have enhanced NETs formation capacity and increased NETs positively correlate with CRC progression. By quantitative proteomic analysis of clinical samples and cell lines, we found that decreased secreted protein acidic and rich in cysteine (SPARC) results in massive NETs formation and integrin α5β1 is the hub protein of NETs-tumor cell interaction. Mechanistically, SPARC regulates the activation of the nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase) pathway by interacting with the receptor for activated C kinase 1 (RACK1). Over-activated NADPH oxidase generates more reactive oxygen species (ROS), leading to the release of NETs. Then, NETs upregulate the expression of integrin α5β1 in tumor cells, which enhances adhesion and activates the downstream signaling pathways to promote proliferation and migration. The combination of NADPH oxidase inhibitor diphenyleneiodonium chloride (DPI) and integrin α5β1 inhibitor ATN-161 (Ac-PHSCN-NH2) effectively suppresses tumor progression in vivo. Our work reveals the mechanistic link between NETs and tumor progression and suggests a combination therapy against NETs-mediated metastasis for CRC.
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Affiliation(s)
- Wenyuan Zhu
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China; (W.Z.); (S.Y.); (D.M.)
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Siqi Yang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China; (W.Z.); (S.Y.); (D.M.)
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Delan Meng
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China; (W.Z.); (S.Y.); (D.M.)
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Qingsong Wang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China; (W.Z.); (S.Y.); (D.M.)
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Jianguo Ji
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China; (W.Z.); (S.Y.); (D.M.)
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing 100871, China
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42
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Ludwig K, Le Belle JE, Muthukrishnan SD, Sperry J, Condro M, Vlashi E, Pajonk F, Kornblum HI. Nicotinamide Adenine Dinucleotide Phosphate Oxidase Promotes Glioblastoma Radiation Resistance in a Phosphate and Tensin Homolog-Dependent Manner. Antioxid Redox Signal 2023; 39:890-903. [PMID: 37470216 PMCID: PMC10775910 DOI: 10.1089/ars.2022.0086] [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: 08/01/2022] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 07/21/2023]
Abstract
Aims: The goal of this study was to determine whether nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX)-produced reactive oxygen species (ROS) enhance brain tumor growth of glioblastoma (GBM) under hypoxic conditions and during radiation treatment. Results: Exogenous ROS promoted brain tumor growth in gliomasphere cultures that expressed functional phosphate and tensin homolog (PTEN), but not in tumors that were PTEN deficient. Hypoxia induced the production of endogenous cytoplasmic ROS and tumor cell growth via activation of NOX. NOX activation resulted in oxidation of PTEN and downstream protein kinase B (Akt) activation. Radiation also promoted ROS production via NOX, which, in turn, resulted in cellular protection that could be abrogated by knockdown of the key NOX component, p22. Knockdown of p22 also inhibited tumor growth and enhanced the efficacy of radiation in PTEN-expressing GBM cells. Innovation: While other studies have implicated NOX function in GBM models, this study demonstrates NOX activation and function under physiological hypoxia and following radiation in GBM, two conditions that are seen in patients. NOX plays an important role in a PTEN-expressing GBM model system, but not in PTEN-nonfunctional systems, and provides a potential, patient-specific therapeutic opportunity. Conclusion: This study provides a strong basis for pursuing NOX inhibition in PTEN-expressing GBM cells as a possible adjunct to radiation therapy. Antioxid. Redox Signal. 39, 890-903.
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Affiliation(s)
- Kirsten Ludwig
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Janel E. Le Belle
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Sree Deepthi Muthukrishnan
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jantzen Sperry
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Michael Condro
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Erina Vlashi
- Department of Radiation Oncology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
| | - Frank Pajonk
- Department of Radiation Oncology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
| | - Harley I. Kornblum
- The Intellectual and Developmental Disabilities Research Center and the Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
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43
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Ward J, Zhang S, Sikora A, Michalski R, Yin Y, D'Alessio A, McLoughlin RM, Jaquet V, Fieschi F, Knaus UG. VEO-IBD NOX1 variant highlights a structural region essential for NOX/DUOX catalytic activity. Redox Biol 2023; 67:102905. [PMID: 37820403 PMCID: PMC10571032 DOI: 10.1016/j.redox.2023.102905] [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: 07/11/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic intestinal disorders that result from an inappropriate inflammatory response to the microbiota in genetically susceptible individuals, often triggered by environmental stressors. Part of this response is the persistent inflammation and tissue injury associated with deficiency or excess of reactive oxygen species (ROS). The NADPH oxidase NOX1 is highly expressed in the intestinal epithelium, and inactivating NOX1 missense mutations are considered a risk factor for developing very early onset IBD. Albeit NOX1 has been linked to wound healing and host defence, many questions remain about its role in intestinal homeostasis and acute inflammatory conditions. Here, we used in vivo imaging in combination with inhibitor studies and germ-free conditions to conclusively identify NOX1 as essential superoxide generator for microbiota-dependent peroxynitrite production in homeostasis and during early endotoxemia. NOX1 loss-of-function variants cannot support peroxynitrite production, suggesting that the gut barrier is persistently weakened in these patients. One of the loss-of-function NOX1 variants, NOX1 p. Asn122His, features replacement of an asparagine residue located in a highly conserved HxxxHxxN motif. Modelling the NOX1-p22phox complex revealed near the distal heme an internal pocket restricted by His119 and Asn122 that is part of the oxygen reduction site. Functional studies in several human NADPH oxidases show that substitution of asparagine with amino acids with larger side chains is not tolerated, while smaller side chains can support catalytic activity. Thus, we identified a previously unrecognized structural feature required for the electron transfer mechanism in human NADPH oxidases.
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Affiliation(s)
- Josie Ward
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Suisheng Zhang
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Adam Sikora
- Faculty of Chemistry, Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Radoslaw Michalski
- Faculty of Chemistry, Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Yuting Yin
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Aurora D'Alessio
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Rachel M McLoughlin
- Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Vincent Jaquet
- Department of Pathology and Immunology and READS Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Franck Fieschi
- Univ. Grenoble Alpes, CNRS, CEA, UMR5075, Institut de Biologie Structurale, Grenoble, France; Institut Universitaire de France (IUF), Paris, France.
| | - Ulla G Knaus
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland.
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Poinsignon L, Chissey A, Ajjaji A, Hernandez I, Vignaud ML, Ferecatu I, Fournier T, Beaudeux JL, Zerrad-Saadi A. Placental cartography of NADPH oxidase (NOX) family proteins: Involvement in the pathophysiology of preeclampsia. Arch Biochem Biophys 2023; 749:109787. [PMID: 37866451 DOI: 10.1016/j.abb.2023.109787] [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] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/29/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
The placenta is an essential organ for fetal development. During the first trimester, it undergoes dramatic changes as it develops in an environment poor in oxygen (around 2-3%). From about 10 gestational weeks, oxygen levels increase to 8% in the intervillous chamber. These changes are accompanied by modulation of the activity of NADPH oxidase, a major source of production of reactive oxygen species in the first trimester of pregnancy. The NOX complex is composed of seven different proteins (NOX1-5 and DUOX1-2) whose placental involvements during physiological and pathological pregnancies are largely unknown. The aim of the study was to produce a cartography of NOX family proteins, in terms of RNA, protein expression, and localization during physiological pregnancy and in the case of preeclampsia (PE), in a cohort of early-onset PE (n = 11) and late-onset PE (n = 7) cases. NOX family proteins were mainly expressed in trophoblastic cells (NOX4-5, DUOX1) and modulated during physiological pregnancy. NOX4 underwent an unexpected and hitherto unreported nuclear translocation at term. In the case of PE, two groups stood out: NOX1-3, superoxide producers, were down-regulated (p < 0.05) while NOX4-DUOX1, hydrogen peroxide producers, were up-regulated (p < 0.05), compared to the control group. Mapping of placental NOX will constitute a reference and guide for future investigations concerning its involvement in the pathophysiology of PE.
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Affiliation(s)
- Léa Poinsignon
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | - Audrey Chissey
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | - Ayoub Ajjaji
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | | | | | - Ioana Ferecatu
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | | | - Jean-Louis Beaudeux
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France; Service Biochimie, AP-HP, Hôpital Necker Enfants Malades, F-75006, Paris, France
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Vendrov AE, Xiao H, Lozhkin A, Hayami T, Hu G, Brody MJ, Sadoshima J, Zhang YY, Runge MS, Madamanchi NR. Cardiomyocyte NOX4 regulates resident macrophage-mediated inflammation and diastolic dysfunction in stress cardiomyopathy. Redox Biol 2023; 67:102937. [PMID: 37871532 PMCID: PMC10598408 DOI: 10.1016/j.redox.2023.102937] [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: 08/31/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023] Open
Abstract
In acute sympathetic stress, catecholamine overload can lead to stress cardiomyopathy. We tested the hypothesis that cardiomyocyte NOX4 (NADPH oxidase 4)-dependent mitochondrial oxidative stress mediates inflammation and diastolic dysfunction in stress cardiomyopathy. Isoproterenol (ISO; 5 mg/kg) injection induced sympathetic stress in wild-type and cardiomyocyte (CM)-specific Nox4 knockout (Nox4CM-/-) mice. Wild-type mice treated with ISO showed higher CM NOX4 expression, H2O2 levels, inflammasome activation, and IL18, IL6, CCL2, and TNFα levels than Nox4CM-/- mice. Spectral flow cytometry and t-SNE analysis of cardiac cell suspensions showed significant increases in pro-inflammatory and pro-fibrotic embryonic-derived resident (CCR2-MHCIIhiCX3CR1hi) macrophages in wild-type mice 3 days after ISO treatment, whereas Nox4CM-/- mice had a higher proportion of embryonic-derived resident tissue-repair (CCR2-MHCIIloCX3CR1lo) macrophages. A significant increase in cardiac fibroblast activation and interstitial collagen deposition and a restrictive pattern of diastolic dysfunction with increased filling pressure was observed in wild-type hearts compared with Nox4CM-/- 7 days post-ISO. A selective NOX4 inhibitor, GKT137831, reduced myocardial mitochondrial ROS, macrophage infiltration, and fibrosis in ISO-injected wild-type mice, and preserved diastolic function. Our data suggest sympathetic overstimulation induces resident macrophage (CCR2-MHCII+) activation and myocardial inflammation, resulting in fibrosis and impaired diastolic function mediated by CM NOX4-dependent ROS.
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Affiliation(s)
- Aleksandr E Vendrov
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Han Xiao
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Andrey Lozhkin
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Takayuki Hayami
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Guomin Hu
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Matthew J Brody
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Junichi Sadoshima
- Rutgers New Jersey Medical School, Department of Cell Biology and Molecular Medicine, Rutgers Biomedical and Health Sciences, Newark, NJ, 07101, USA
| | - You-Yi Zhang
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Marschall S Runge
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Nageswara R Madamanchi
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA.
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Hong L, Junjie C, Pengyu Z, Ping L, Wei C. The mechanism of oxidative stress in keloid fibroblasts and the experimental study of early application of angiotensin-converting enzyme inhibitor. Indian J Dermatol Venereol Leprol 2023; 89:842-849. [PMID: 37067128 DOI: 10.25259/ijdvl_323_2022] [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] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 10/12/2022] [Indexed: 03/31/2023]
Abstract
Objective To investigate the protective effects of an angiotensin-converting enzyme inhibitor after inducing oxidative stress on keloid fibroblasts. Methods Primary keloid fibroblasts were isolated and cultured by enzyme digestion combined with the tissue adhesion method in vitro, and the third to fifth generations of cells were selected for the experiment. For 24 hours, keloid fibroblasts were treated with different concentrations of hydrogen peroxide. Different concentrations of angiotensin-converting enzyme inhibitor were added to the keloid fibroblast culture medium, and then the cells were treated with hydrogen peroxide for 24 hours. Results With the increase of hydrogen peroxide concentration, the growth of keloid fibroblasts was inhibited and the levels of malondialdehyde, superoxide dismutase, and reactive oxygen species increased gradually, accompanied by an increase in the expression of nicotinamide adenine dinucleotide phosphate oxidase and collagen I mRNA. The expression of nicotinamide adenine dinucleotide phosphate oxidase-mRNA in keloid fibroblasts and the formation of reactive oxygen species in keloid fibroblasts were induced by different concentrations of angiotensin II, and the most significant effect was at 10-5 mmol/mL. The effects of diphenyleneiodonium chloride (NOX inhibitor), N-acetylcysteine (reactive oxygen species inhibitor) and nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase) RNA treatment on angiotensin II-induced nicotinamide adenine dinucleotide phosphate oxidase and collagen I increased significantly. Hydrogen peroxide and angiotensin II alone or combined can induce NADPH oxidase and reactive oxygen species expression in keloid fibroblasts. When the angiotensin-converting enzyme inhibitor was added, the expression of NADPH oxidase and reactive oxygen species in keloid induced by hydrogen peroxide and angiotensin II could be inhibited. Conclusion Oxidative stress can lead to increased expression of reactive oxygen species, NADPH oxidase and collagen I in keloid fibroblasts, suggesting oxidative stress mediates the migration of human keloid fibroblasts and extracellular matrix synthesis.
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Affiliation(s)
- Li Hong
- Department of Medical Cosmetology, Chengdu Second People's Hospital, Chengdu, China
| | - Chen Junjie
- Department of Aesthetic and Plastic Burn Surgery, West China Hospital of Sichuan University, Huaxi, China
| | - Zhao Pengyu
- Department of Medical Cosmetology, Chengdu Second People's Hospital, Chengdu, China
| | - Liu Ping
- Department of Medical Cosmetology, Chengdu Second People's Hospital, Chengdu, China
| | - Chen Wei
- Department of Medical Cosmetology, Chengdu Second People's Hospital, Chengdu, China
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Hashimoto T, Hashimoto K, Shindo H, Tsuboyama S, Miyakawa T, Tanokura M, Kuchitsu K. Enhanced Ca 2+ binding to EF-hands through phosphorylation of conserved serine residues activates MpRBOHB and chitin-triggered ROS production. Physiol Plant 2023; 175:e14101. [PMID: 38148249 DOI: 10.1111/ppl.14101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/14/2023] [Indexed: 12/28/2023]
Abstract
NADPH oxidases/RBOHs catalyze apoplastic ROS production and act as key signaling nodes, integrating multiple signal transduction pathways regulating plant development and stress responses. Although RBOHs have been suggested to be activated by Ca2+ binding and phosphorylation by various protein kinases, a mechanism linking Ca2+ binding and phosphorylation in the activity regulation remained elusive. Chitin-triggered ROS production required cytosolic Ca2+ elevation and Ca2+ binding to MpRBOHB in a liverwort Marchantia polymorpha. Heterologous expression analysis of truncated variants revealed that a segment of the N-terminal cytosolic region highly conserved among land plant RBOHs encompassing the two EF-hand motifs is essential for the activation of MpRBOHB. Within the conserved regulatory domain, we have identified two Ser residues whose phosphorylation is critical for the activation in planta. Isothermal titration calorimetry analyses revealed that phosphorylation of the two Ser residues increased the Ca2+ binding affinity of MpRBOHB, while Ca2+ binding is indispensable for the activation, even if the two Ser residues are phosphorylated. Our findings shed light on a mechanism through which phosphorylation potentiates the Ca2+ -dependent activation of MpRBOHB, emphasizing the pivotal role of Ca2+ binding in mediating the Ca2+ and phosphorylation-driven activation of MpRBOHB, which is likely to represent a fundamental mechanism conserved among land plant RBOHs.
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Affiliation(s)
- Takafumi Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Kenji Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Hiroki Shindo
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Shoko Tsuboyama
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Takuya Miyakawa
- Graduate School of Biostudies, Kyoto University, Kyoto, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Kuchitsu
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
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Fraga CG, Oteiza PI, Hid EJ, Galleano M. (Poly)phenols and the regulation of NADPH oxidases. Redox Biol 2023; 67:102927. [PMID: 37857000 PMCID: PMC10587761 DOI: 10.1016/j.redox.2023.102927] [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] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023] Open
Abstract
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (NOXs) are enzymes that generate superoxide anion (O2•-) and hydrogen peroxide (H2O2), and that are widely distributed in mammalian tissues. Many bioactives, especially plant (poly)phenols are being studied for their capacity to regulate NOXs. The modulation of these enzymes are of central relevance to maintain redox homeostasis and regulate cell signaling. In in vitro and ex vivo assays, and in experimental animal models, different (poly)phenols are able to modulate NOX-dependent generation of O2•- and H2O2. Mechanistically, most of the known effects of (poly)phenols and of their metabolites on NOX1, NOX2, and NOX4, include the modulation of: i) the expression of the different constituent subunits, and/or ii) posttranslational modifications involved in the assembly and translocation of the protein complexes. Very limited evidence is available on a direct action of (poly)phenols on NOX active site (electron-transferring protein). Moreover, it is suggested that the regulation by (poly)phenols of systemic events, e.g. inflammation, is frequently associated with their capacity to regulate NOX activation. Although of physiological significance, more studies are needed to understand the specific targets/mechanisms of NOX regulation by (poly)phenols, and the (poly)phenol chemical structures and moieties directly involved in the observed effects. It should be kept in mind the difficulties of NOX's studies associated with the complexity of NOXs biochemistry and the methodological limitations of O2•- and H2O2 the determinations. Studies relating human ingestion of specific (poly)phenols, with NOX activity and disease conditions, are guaranteed to better understand the health importance of (poly)phenol consumption and the involvement of NOXs as biological targets.
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Affiliation(s)
- Cesar G Fraga
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina; Department of Nutrition University of California, Davis, USA
| | - Patricia I Oteiza
- Department of Nutrition University of California, Davis, USA; Department of Environmental Toxicology, University of California, Davis, USA
| | - Ezequiel J Hid
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
| | - Monica Galleano
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina.
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Blandino G, Fiorani M, Canonico B, De Matteis R, Guidarelli A, Montanari M, Buffi G, Coppo L, Arnér ESJ, Cantoni O. Clozapine suppresses NADPH oxidase activation, counteracts cytosolic H 2O 2, and triggers early onset mitochondrial dysfunction during adipogenesis of human liposarcoma SW872 cells. Redox Biol 2023; 67:102915. [PMID: 37866162 PMCID: PMC10623370 DOI: 10.1016/j.redox.2023.102915] [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] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/29/2023] [Accepted: 10/01/2023] [Indexed: 10/24/2023] Open
Abstract
Long-term treatment of schizophrenia with clozapine (CLZ), an atypical antipsychotic drug, is associated with an increased incidence of metabolic disorders mediated by poorly understood mechanisms. We herein report that CLZ, while slowing down the morphological changes and lipid accumulation occurring during SW872 cell adipogenesis, also causes an early (day 3) inhibition of the expression/nuclear translocation of CAAT/enhancer-binding protein β and peroxisome proliferator-activated receptor γ. Under the same conditions, CLZ blunts NADPH oxidase-derived reactive oxygen species (ROS) by a dual mechanism involving enzyme inhibition and ROS scavenging. These effects were accompanied by hampered activation of the nuclear factor (erythroid-derived2)-like 2 (Nrf2)-dependent antioxidant responses compared to controls, and by an aggravated formation of mitochondrial superoxide. CLZ failed to exert ROS scavenging activities in the mitochondrial compartment but appeared to actively scavenge cytosolic H2O2 derived from mitochondrial superoxide. The early formation of mitochondrial ROS promoted by CLZ was also associated with signs of mitochondrial dysfunction. Some of the above findings were recapitulated using mouse embryonic fibroblasts. We conclude that the NADPH oxidase inhibitory and cytosolic ROS scavenging activities of CLZ slow down SW872 cell adipogenesis and suppress their Nrf2 activation, an event apparently connected with increased mitochondrial ROS formation, which is associated with insulin resistance and metabolic syndrome. Thus, the cellular events characterised herein may help to shed light on the more detailed molecular mechanisms explaining some of the adverse metabolic effects of CLZ.
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Affiliation(s)
- Giulia Blandino
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Mara Fiorani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy.
| | - Barbara Canonico
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Rita De Matteis
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Andrea Guidarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Mariele Montanari
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Gloria Buffi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Lucia Coppo
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Elias S J Arnér
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, Hungary
| | - Orazio Cantoni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
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50
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Cortés A, Marqués J, Pejenaute Á, Ainzúa E, Ansorena E, Abizanda G, Prósper F, de Miguel C, Zalba G. Endothelial NOX5 overexpression induces changes in the cardiac gene profile: potential impact in myocardial infarction? J Physiol Biochem 2023; 79:787-797. [PMID: 37566320 PMCID: PMC10635946 DOI: 10.1007/s13105-023-00975-z] [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: 11/16/2021] [Accepted: 07/06/2023] [Indexed: 08/12/2023]
Abstract
Cardiovascular diseases and the ischemic heart disease specifically constitute the main cause of death worldwide. The ischemic heart disease may lead to myocardial infarction, which in turn triggers numerous mechanisms and pathways involved in cardiac repair and remodeling. Our goal in the present study was to characterize the effect of the NADPH oxidase 5 (NOX5) endothelial expression in healthy and infarcted knock-in mice on diverse signaling pathways. The mechanisms studied in the heart of mice were the redox pathway, metalloproteinases and collagen pathway, signaling factors such as NFκB, AKT or Bcl-2, and adhesion molecules among others. Recent studies support that NOX5 expression in animal models can modify the environment and predisposes organ response to harmful stimuli prior to pathological processes. We found many alterations in the mRNA expression of components involved in cardiac fibrosis as collagen type I or TGF-β and in key players of cardiac apoptosis such as AKT, Bcl-2, or p53. In the heart of NOX5-expressing mice after chronic myocardial infarction, gene alterations were predominant in the redox pathway (NOX2, NOX4, p22phox, or SOD1), but we also found alterations in VCAM-1 and β-MHC expression. Our results suggest that NOX5 endothelial expression in mice preconditions the heart, and we propose that NOX5 has a cardioprotective role. The correlation studies performed between echocardiographic parameters and cardiac mRNA expression supported NOX5 protective action.
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Affiliation(s)
- Adriana Cortés
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Javier Marqués
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Álvaro Pejenaute
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Elena Ainzúa
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Eduardo Ansorena
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Gloria Abizanda
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
| | - Felipe Prósper
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
- CIBERONC, Madrid, Spain
| | - Carlos de Miguel
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Guillermo Zalba
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain.
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.
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