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Rondeau JD, Van de Velde JA, Bouidida Y, Sonveaux P. Subclinical dose irradiation triggers human breast cancer migration via mitochondrial reactive oxygen species. Cancer Metab 2024; 12:20. [PMID: 38978126 DOI: 10.1186/s40170-024-00347-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 06/26/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Despite technological advances in radiotherapy, cancer cells at the tumor margin and in diffusive infiltrates can receive subcytotoxic doses of photons. Even if only a minority of cancer cells are concerned, phenotypic consequences could be important considering that mitochondrial DNA (mtDNA) is a primary target of radiation and that damage to mtDNA can persist. In turn, mitochondrial dysfunction associated with enhanced mitochondrial ROS (mtROS) production could promote cancer cell migration out of the irradiation field in a natural attempt to escape therapy. In this study, using MCF7 and MDA-MB-231 human breast cancer cells as models, we aimed to elucidate the molecular mechanisms supporting a mitochondrial contribution to cancer cell migration induced by subclinical doses of irradiation (< 2 Gy). METHODS Mitochondrial dysfunction was tested using mtDNA multiplex PCR, oximetry, and ROS-sensitive fluorescent reporters. Migration was tested in transwells 48 h after irradiation in the presence or absence of inhibitors targeting specific ROS or downstream effectors. Among tested inhibitors, we designed a mitochondria-targeted version of human catalase (mtCAT) to selectively inactivate mitochondrial H2O2. RESULTS Photon irradiation at subclinical doses (0.5 Gy for MCF7 and 0.125 Gy for MDA-MB-231 cells) sequentially affected mtDNA levels and/or integrity, increased mtROS production, increased MAP2K1/MEK1 gene expression, activated ROS-sensitive transcription factors NF-κB and AP1 and stimulated breast cancer cell migration. Targeting mtROS pharmacologically by MitoQ or genetically by mtCAT expression mitigated migration induced by a subclinical dose of irradiation. CONCLUSION Subclinical doses of photon irradiation promote human breast cancer migration, which can be countered by selectively targeting mtROS.
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Affiliation(s)
- Justin D Rondeau
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, 1200, Belgium
| | - Justine A Van de Velde
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, 1200, Belgium
| | - Yasmine Bouidida
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, 1200, Belgium
| | - Pierre Sonveaux
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, 1200, Belgium.
- WELBIO Department, WEL Research Institute, Wavre, 1300, Belgium.
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2
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Trilling CR, Weng JH, Sharma PK, Nolte V, Wu J, Ma W, Boassa D, Taylor SS, Herberg FW. RedOx regulation of LRRK2 kinase activity by active site cysteines. NPJ Parkinsons Dis 2024; 10:75. [PMID: 38570484 PMCID: PMC10991482 DOI: 10.1038/s41531-024-00683-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/12/2024] [Indexed: 04/05/2024] Open
Abstract
Mutations of the human leucine-rich repeat kinase 2 (LRRK2) have been associated with both, idiopathic and familial Parkinson's disease (PD). Most of these pathogenic mutations are located in the kinase domain (KD) or GTPase domain of LRRK2. In this study we describe a mechanism in which protein kinase activity can be modulated by reversible oxidation or reduction, involving a unique pair of adjacent cysteines, the "CC" motif. Among all human protein kinases, only LRRK2 contains this "CC" motif (C2024 and C2025) in the Activation Segment (AS) of the kinase domain. In an approach combining site-directed mutagenesis, biochemical analyses, cell-based assays, and Gaussian accelerated Molecular Dynamics (GaMD) simulations we could attribute a role for each of those cysteines. We employed reducing and oxidizing agents with potential clinical relevance to investigate effects on kinase activity and microtubule docking. We find that each cysteine gives a distinct contribution: the first cysteine, C2024, is essential for LRRK2 protein kinase activity, while the adjacent cysteine, C2025, contributes significantly to redox sensitivity. Implementing thiolates (R-S-) in GaMD simulations allowed us to analyse how each of the cysteines in the "CC" motif interacts with its surrounding residues depending on its oxidation state. From our studies we conclude that oxidizing agents can downregulate kinase activity of hyperactive LRRK2 PD mutations and may provide promising tools for therapeutic strategies.
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Affiliation(s)
| | - Jui-Hung Weng
- Department of Pharmacology, University of California, San Diego, CA, USA
| | | | - Viktoria Nolte
- Department of Biochemistry, University of Kassel, Kassel, Germany
| | - Jian Wu
- Department of Pharmacology, University of California, San Diego, CA, USA
| | - Wen Ma
- Department of Physics, University of Vermont, Burlington, VT, USA
| | - Daniela Boassa
- National Center for Microscopy and Imaging Research, University of California, San Diego, CA, USA
- Department of Neurosciences, University of California, San Diego, CA, USA
| | - Susan S Taylor
- Department of Pharmacology, University of California, San Diego, CA, USA
- Department of Chemistry and Biochemistry, University of California, San Diego, CA, USA
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3
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Codenotti S, Sandrini L, Mandracchia D, Lorenzi L, Corsetti G, Poli M, Asperti M, Salvi V, Bosisio D, Monti E, Mitola S, Triggiani L, Guescini M, Pozzo E, Sampaolesi M, Gastaldello S, Cassandri M, Marampon F, Fanzani A. Statin-Sensitive Akt1/Src/Caveolin-1 Signaling Enhances Oxidative Stress Resistance in Rhabdomyosarcoma. Cancers (Basel) 2024; 16:853. [PMID: 38473215 PMCID: PMC11154391 DOI: 10.3390/cancers16050853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/07/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Identifying the molecular mechanisms underlying radioresistance is a priority for the treatment of RMS, a myogenic tumor accounting for approximately 50% of all pediatric soft tissue sarcomas. We found that irradiation (IR) transiently increased phosphorylation of Akt1, Src, and Cav1 in human RD and RH30 lines. Synthetic inhibition of Akt1 and Src phosphorylation increased ROS levels in all RMS lines, promoting cellular radiosensitization. Accordingly, the elevated activation of the Akt1/Src/Cav1 pathway, as detected in two RD lines characterized by overexpression of a myristoylated Akt1 form (myrAkt1) or Cav1 (RDCav1), was correlated with reduced levels of ROS, higher expression of catalase, and increased radioresistance. We found that treatment with cholesterol-lowering drugs such as lovastatin and simvastatin promoted cell apoptosis in all RMS lines by reducing Akt1 and Cav1 levels and increasing intracellular ROS levels. Combining statins with IR significantly increased DNA damage and cell apoptosis as assessed by γ histone 2AX (γH2AX) staining and FACS analysis. Furthermore, in combination with the chemotherapeutic agent actinomycin D, statins were effective in reducing cell survival through increased apoptosis. Taken together, our findings suggest that the molecularly linked signature formed by Akt1, Src, Cav1, and catalase may represent a prognostic determinant for identifying subgroups of RMS patients with higher probability of recurrence after radiotherapy. Furthermore, statin-induced oxidative stress could represent a treatment option to improve the success of radiotherapy.
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Affiliation(s)
- Silvia Codenotti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Leonardo Sandrini
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Delia Mandracchia
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Luisa Lorenzi
- Department of Molecular and Translational Medicine, University of Brescia, and ASST Spedali Civili di Brescia, 25123 Brescia, Italy;
| | - Giovanni Corsetti
- Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy;
| | - Maura Poli
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Michela Asperti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Valentina Salvi
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Daniela Bosisio
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Eugenio Monti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Stefania Mitola
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
| | - Luca Triggiani
- Department of Radiation Oncology, ASST Spedali Civili di Brescia, University of Brescia, 25123 Brescia, Italy;
| | - Michele Guescini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy;
| | - Enrico Pozzo
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium; (E.P.); (M.S.)
| | - Maurilio Sampaolesi
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium; (E.P.); (M.S.)
| | - Stefano Gastaldello
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden;
| | - Matteo Cassandri
- Department of Radiological Sciences, Oncology and Anatomic Pathology, “Sapienza” University of Rome, 00161 Rome, Italy; (M.C.); (F.M.)
| | - Francesco Marampon
- Department of Radiological Sciences, Oncology and Anatomic Pathology, “Sapienza” University of Rome, 00161 Rome, Italy; (M.C.); (F.M.)
| | - Alessandro Fanzani
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (L.S.); (D.M.); (M.P.); (M.A.); (V.S.); (D.B.); (E.M.); (S.M.)
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Dai Y, Zhang X, Ou Y, Zou L, Zhang D, Yang Q, Qin Y, Du X, Li W, Yuan Z, Xiao Z, Wen Q. Anoikis resistance--protagonists of breast cancer cells survive and metastasize after ECM detachment. Cell Commun Signal 2023; 21:190. [PMID: 37537585 PMCID: PMC10399053 DOI: 10.1186/s12964-023-01183-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 06/04/2023] [Indexed: 08/05/2023] Open
Abstract
Breast cancer exhibits the highest global incidence among all tumor types. Regardless of the type of breast cancer, metastasis is a crucial cause of poor prognosis. Anoikis, a form of apoptosis initiated by cell detachment from the native environment, is an outside-in process commencing with the disruption of cytosolic connectors such as integrin-ECM and cadherin-cell. This disruption subsequently leads to intracellular cytoskeletal and signaling pathway alterations, ultimately activating caspases and initiating programmed cell death. Development of an anoikis-resistant phenotype is a critical initial step in tumor metastasis. Breast cancer employs a series of stromal alterations to suppress anoikis in cancer cells. Comprehensive investigation of anoikis resistance mechanisms can inform strategies for preventing and regressing metastatic breast cancer. The present review first outlines the physiological mechanisms of anoikis, elucidating the alterations in signaling pathways, cytoskeleton, and protein targets that transpire from the outside in upon adhesion loss in normal breast cells. The specific anoikis resistance mechanisms induced by pathological changes in various spatial structures during breast cancer development are also discussed. Additionally, the genetic loci of targets altered in the development of anoikis resistance in breast cancer, are summarized. Finally, the micro-RNAs and targeted drugs reported in the literature concerning anoikis are compiled, with keratocin being the most functionally comprehensive. Video Abstract.
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Affiliation(s)
- Yalan Dai
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Oncology, Garze Tibetan Autonomous Prefecture People's Hospital, Kangding, China
| | - Xinyi Zhang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shenzhen, China
| | - Yingjun Ou
- Clinical Medicine School, Southwest Medicial Univercity, Luzhou, China
- Orthopaedics, Garze Tibetan Autonomous Prefecture People's Hospital, Kangding, China
| | - Linglin Zou
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Duoli Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Qingfan Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yi Qin
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiuju Du
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Wei Li
- Southwest Medical University, Luzhou, China
| | | | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Qinglian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
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5
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Nepali PR, Kyprianou N. Anoikis in phenotypic reprogramming of the prostate tumor microenvironment. Front Endocrinol (Lausanne) 2023; 14:1160267. [PMID: 37091854 PMCID: PMC10113530 DOI: 10.3389/fendo.2023.1160267] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/09/2023] [Indexed: 04/25/2023] Open
Abstract
Prostate cancer is one of the most common malignancies in males wherein 1 in 8 men are diagnosed with this disease in their lifetime. The urgency to find novel therapeutic interventions is associated with high treatment resistance and mortality rates associated with castration-resistant prostate cancer. Anoikis is an apoptotic phenomenon for normal epithelial or endothelial cells that have lost their attachment to the extracellular matrix (ECM). Tumor cells that lose their connection to the ECM can die via apoptosis or survive via anoikis resistance and thus escaping to distant organs for metastatic progression. This review discusses the recent advances made in our understanding of the signaling effectors of anoikis in prostate cancer and the approaches to translate these mechanistic insights into therapeutic benefits for reducing lethal disease outcomes (by overcoming anoikis resistance). The prostate tumor microenvironment is a highly dynamic landscape wherein the balance between androgen signaling, cell lineage changes, epithelial-mesenchymal transition (EMT), extracellular matrix interactions, actin cytoskeleton remodeling as well as metabolic changes, confer anoikis resistance and metastatic spread. Thus, these mechanisms also offer unique molecular treatment signatures, exploitation of which can prime prostate tumors to anoikis induction with a high translational significance.
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Affiliation(s)
- Prerna R. Nepali
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Natasha Kyprianou
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Pathology and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- *Correspondence: Natasha Kyprianou,
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6
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TRPV4 Promotes Metastasis in Melanoma by Regulating Cell Motility through Cytoskeletal Rearrangement. Int J Mol Sci 2022; 23:ijms232315155. [PMID: 36499486 PMCID: PMC9737014 DOI: 10.3390/ijms232315155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
The abnormal expression of Transient Receptor Potential cation channel subfamily V member 4 (TRPV4) is closely related to the progression of multiple tumors. In addition, TRPV4 is increasingly being considered a potential target for cancer therapy, especially in tumor metastasis prevention. However, the biological correlation between TRPV4 and tumor metastasis, as well as the specific role of TRPV4 in malignant melanoma metastasis, is poorly understood. In this study, we aimed to examine the role of TRPV4 in melanoma metastasis through experiments and clinical data analysis, and the underlying anticancer mechanism of Baicalin, a natural compound, and its inhibitory effect on TRPV4 with in vivo and in vitro experiments. Our findings suggested that TRPV4 promotes metastasis in melanoma by regulating cell motility via rearranging the cytoskeletal, and Baicalin can inhibit cancer metastasis, whose mechanisms reverse the recruitment of activated cofilin to leading-edge protrusion and the increasing phosphorylation level of cortactin, which is provoked by TRPV4 activation.
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7
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Redox Homeostasis in Thyroid Cancer: Implications in Na +/I - Symporter (NIS) Regulation. Int J Mol Sci 2022; 23:ijms23116129. [PMID: 35682803 PMCID: PMC9181215 DOI: 10.3390/ijms23116129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/17/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
Radioiodine therapy (RAI) is a standard and effective therapeutic approach for differentiated thyroid cancers (DTCs) based on the unique capacity for iodide uptake and accumulation of the thyroid gland through the Na+/I− symporter (NIS). However, around 5–15% of DTC patients may become refractory to radioiodine, which is associated with a worse prognosis. The loss of RAI avidity due to thyroid cancers is attributed to cell dedifferentiation, resulting in NIS repression by transcriptional and post-transcriptional mechanisms. Targeting the signaling pathways potentially involved in this process to induce de novo iodide uptake in refractory tumors is the rationale of “redifferentiation strategies”. Oxidative stress (OS) results from the imbalance between ROS production and depuration that favors a pro-oxidative environment, resulting from increased ROS production, decreased antioxidant defenses, or both. NIS expression and function are regulated by the cellular redox state in cancer and non-cancer contexts. In addition, OS has been implicated in thyroid tumorigenesis and thyroid cancer cell dedifferentiation. Here, we review the main aspects of redox homeostasis in thyrocytes and discuss potential ROS-dependent mechanisms involved in NIS repression in thyroid cancer.
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Sorolla MA, Hidalgo I, Sorolla A, Montal R, Pallisé O, Salud A, Parisi E. Microenvironmental Reactive Oxygen Species in Colorectal Cancer: Involved Processes and Therapeutic Opportunities. Cancers (Basel) 2021; 13:5037. [PMID: 34680186 PMCID: PMC8534037 DOI: 10.3390/cancers13205037] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is the fourth most common cause of cancer deaths worldwide. Although screening programs have reduced mortality rates, there is a need for research focused on finding the main factors that lead primary CRC to progress and metastasize. During tumor progression, malignant cells modify their habitat, corrupting or transforming cells of different origins and creating the tumor microenvironment (TME). Cells forming the TME like macrophages, neutrophils, and fibroblasts generate reactive oxygen species (ROS) that modify the cancer niche. The effects of ROS in cancer are very diverse: they promote cellular proliferation, epithelial-to-mesenchymal transition (EMT), evasion of cell death programs, migration, and angiogenesis. Due to the multifaceted role of ROS in cancer cell survival and function, ROS-modulating agents such as antioxidants or pro-oxidants could have therapeutic potential in cancer prevention and/or as a complement to systemic treatments. In this review, we will examine the main ROS producer cells and their effects on cancer progression and metastasis. Furthermore, we will enumerate the latest clinical trials where pro-oxidants and antioxidants have therapeutic uses in CRC.
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Affiliation(s)
- Maria Alba Sorolla
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
| | - Ivan Hidalgo
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
| | - Anabel Sorolla
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
| | - Robert Montal
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
- Department of Medical Oncology, Arnau de Vilanova University Hospital (HUAV), 25198 Lleida, Spain
| | - Ona Pallisé
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
- Department of Medical Oncology, Arnau de Vilanova University Hospital (HUAV), 25198 Lleida, Spain
| | - Antonieta Salud
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
- Department of Medical Oncology, Arnau de Vilanova University Hospital (HUAV), 25198 Lleida, Spain
| | - Eva Parisi
- Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain; (M.A.S.); (I.H.); (A.S.); (R.M.); (O.P.); (A.S.)
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9
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Khan AQ, Rashid K, AlAmodi AA, Agha MV, Akhtar S, Hakeem I, Raza SS, Uddin S. Reactive oxygen species (ROS) in cancer pathogenesis and therapy: An update on the role of ROS in anticancer action of benzophenanthridine alkaloids. Biomed Pharmacother 2021; 143:112142. [PMID: 34536761 DOI: 10.1016/j.biopha.2021.112142] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/13/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022] Open
Abstract
Reactive oxygen species play crucial role in biological homeostasis and pathogenesis of human diseases including cancer. In this line, now it has become evident that ROS level/concentration is a major factor in the growth, progression and stemness of cancer cells. Moreover, cancer cells maintain a delicate balance between ROS and antioxidants to promote pathogenesis and clinical challenges via targeting a battery of signaling pathways converging to cancer hallmarks. Recent findings also entail the therapeutic importance of ROS for the better clinical outcomes in cancer patients as they induce apoptosis and autophagy. Moreover, poor clinical outcomes associated with cancer therapies are the major challenge and use of natural products have been vital in attenuation of these challenges due to their multitargeting potential with less adverse effects. In fact, most available drugs are derived from natural resources, either directly or indirectly and available evidence show the clinical importance of natural products in the management of various diseases, including cancer. ROS play a critical role in the anticancer actions of natural products, particularly phytochemicals. Benzophenanthridine alkaloids of the benzyl isoquinoline family of alkaloids, such as sanguinarine, possess several pharmacological properties and are thus being studied for the treatment of different human diseases, including cancer. In this article, we review recent findings, on how benzophenanthridine alkaloid-induced ROS play a critical role in the attenuation of pathological changes and stemness features associated with human cancers. In addition, we highlight the role of ROS in benzophenanthridine alkaloid-mediated activation of the signaling pathway associated with cancer cell apoptosis and autophagy.
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Affiliation(s)
- Abdul Q Khan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Khalid Rashid
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | | | - Maha Victor Agha
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Sabah Akhtar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Ishrat Hakeem
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Syed Shadab Raza
- Department of Stem Cell Biology and Regenerative Medicine, Era University, Lucknow, India
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar; Laboratory Animal Research Center, Qatar University, Doha 2713, Qatar.
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10
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Structural insights into redox-active cysteine residues of the Src family kinases. Redox Biol 2021; 41:101934. [PMID: 33765616 PMCID: PMC8022254 DOI: 10.1016/j.redox.2021.101934] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/18/2021] [Accepted: 03/02/2021] [Indexed: 12/24/2022] Open
Abstract
The Src Family Kinases (SFKs) are pivotal regulators of cellular signal transduction and highly sought-after targets in drug discovery. Their actions within cells are controlled by alterations in protein phosphorylation that switch the SFKs from autoinhibited to active states. The SFKs are also well recognized to contain redox-active cysteine residues where oxidation of certain residues directly contribute to kinase function. To more completely understand the factors that influence cysteine oxidation within the SFKs, a review is presented of the local structural environments surrounding SFK cysteine residues compared to their quantified oxidation in vivo from the Oximouse database. Generally, cysteine local structure and degree of redox sensitivity vary with respect to sequence conservation. Cysteine residues found in conserved positions are more mildly redox-active as they are found in hydrophobic environments and not fully exposed to solvent. Non-conserved redox-active cysteines are generally the most reactive with direct solvent access and/or in hydrophilic environments. Results from this analysis motivate future efforts to conduct comprehensive proteome-wide analysis of redox-sensitivity, conservation, and local structural environments of proteins containing reactive cysteine residues.
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11
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Schnelle M, Sawyer I, Anilkumar N, Mohamed BA, Richards DA, Toischer K, Zhang M, Catibog N, Sawyer G, Mongue-Din H, Schröder K, Hasenfuss G, Shah AM. NADPH oxidase-4 promotes eccentric cardiac hypertrophy in response to volume overload. Cardiovasc Res 2021; 117:178-187. [PMID: 31821410 PMCID: PMC7797217 DOI: 10.1093/cvr/cvz331] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 11/13/2019] [Accepted: 12/07/2019] [Indexed: 12/15/2022] Open
Abstract
AIMS Chronic pressure or volume overload induce concentric vs. eccentric left ventricular (LV) remodelling, respectively. Previous studies suggest that distinct signalling pathways are involved in these responses. NADPH oxidase-4 (Nox4) is a reactive oxygen species-generating enzyme that can limit detrimental cardiac remodelling in response to pressure overload. This study aimed to assess its role in volume overload-induced remodelling. METHODS AND RESULTS We compared the responses to creation of an aortocaval fistula (Shunt) to induce volume overload in Nox4-null mice (Nox4-/-) vs. wild-type (WT) littermates. Induction of Shunt resulted in a significant increase in cardiac Nox4 mRNA and protein levels in WT mice as compared to Sham controls. Nox4-/- mice developed less eccentric LV remodelling than WT mice (echocardiographic relative wall thickness: 0.30 vs. 0.27, P < 0.05), with less LV hypertrophy at organ level (increase in LV weight/tibia length ratio of 25% vs. 43%, P < 0.01) and cellular level (cardiomyocyte cross-sectional area: 323 µm2 vs. 379 μm2, P < 0.01). LV ejection fraction, foetal gene expression, interstitial fibrosis, myocardial capillary density, and levels of myocyte apoptosis after Shunt were similar in the two genotypes. Myocardial phospho-Akt levels were increased after induction of Shunt in WT mice, whereas levels decreased in Nox4-/- mice (+29% vs. -21%, P < 0.05), associated with a higher level of phosphorylation of the S6 ribosomal protein (S6) and the eIF4E-binding protein 1 (4E-BP1) in WT compared to Nox4-/- mice. We identified that Akt activation in cardiac cells is augmented by Nox4 via a Src kinase-dependent inactivation of protein phosphatase 2A. CONCLUSION Endogenous Nox4 is required for the full development of eccentric cardiac hypertrophy and remodelling during chronic volume overload. Nox4-dependent activation of Akt and its downstream targets S6 and 4E-BP1 may be involved in this effect.
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MESH Headings
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Apoptosis
- Arteriovenous Shunt, Surgical
- Cell Cycle Proteins/metabolism
- Cell Line
- Disease Models, Animal
- Fibrosis
- Hypertrophy, Left Ventricular/enzymology
- Hypertrophy, Left Ventricular/genetics
- Hypertrophy, Left Ventricular/pathology
- Hypertrophy, Left Ventricular/physiopathology
- Intracellular Signaling Peptides and Proteins/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- NADPH Oxidase 2/genetics
- NADPH Oxidase 2/metabolism
- NADPH Oxidase 4/genetics
- NADPH Oxidase 4/metabolism
- Phosphorylation
- Protein Phosphatase 2/metabolism
- Proto-Oncogene Proteins c-akt/metabolism
- Rats
- Ribosomal Protein S6/metabolism
- Signal Transduction
- Ventricular Function, Left
- Ventricular Remodeling
- src-Family Kinases/metabolism
- Mice
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Affiliation(s)
- Moritz Schnelle
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
- Department of Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
- Institute for Clinical Chemistry, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Iain Sawyer
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Narayana Anilkumar
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Belal A Mohamed
- Department of Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Daniel A Richards
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Karl Toischer
- Department of Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Min Zhang
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Norman Catibog
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Greta Sawyer
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Héloïse Mongue-Din
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Katrin Schröder
- Institute for Cardiovascular Physiology, Goethe-University, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Gerd Hasenfuss
- Department of Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Ajay M Shah
- King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
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12
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Pak ES, Uddin MJ, Ha H. Inhibition of Src Family Kinases Ameliorates LPS-Induced Acute Kidney Injury and Mitochondrial Dysfunction in Mice. Int J Mol Sci 2020; 21:ijms21218246. [PMID: 33153232 PMCID: PMC7662942 DOI: 10.3390/ijms21218246] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/23/2022] Open
Abstract
Acute kidney injury (AKI), a critical syndrome characterized by a rapid decrease of kidney function, is a global health problem. Src family kinases (SFK) are proto-oncogenes that regulate diverse biological functions including mitochondrial function. Since mitochondrial dysfunction plays an important role in the development of AKI, and since unbalanced SFK activity causes mitochondrial dysfunction, the present study examined the role of SFK in AKI. Lipopolysaccharides (LPS) inhibited mitochondrial biogenesis and upregulated the expression of NGAL, a marker of tubular epithelial cell injury, in mouse proximal tubular epithelial (mProx) cells. These alterations were prevented by PP2, a pan SFK inhibitor. Importantly, PP2 pretreatment significantly ameliorated LPS-induced loss of kidney function and injury including inflammation and oxidative stress. The attenuation of LPS-induced AKI by PP2 was accompanied by the maintenance of mitochondrial biogenesis. LPS upregulated SFK, especially Fyn and Src, in mouse kidney as well as in mProx cells. These data suggest that Fyn and Src kinases are involved in the pathogenesis of LPS-induced AKI, and that inhibition of Fyn and Src kinases may have a potential therapeutic effect, possibly via improving mitochondrial biogenesis.
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Affiliation(s)
| | | | - Hunjoo Ha
- Correspondence: ; Tel.: +82-2-3277-4075; Fax: +82-2-3277-2851
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13
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Petrushanko IY, Mitkevich VA, Makarov AA. Molecular Mechanisms of the Redox Regulation of the Na,K-ATPase. Biophysics (Nagoya-shi) 2020. [DOI: 10.1134/s0006350920050139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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14
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Deficiency in fibroblast PPARβ/δ reduces nonmelanoma skin cancers in mice. Cell Death Differ 2020; 27:2668-2680. [PMID: 32313198 DOI: 10.1038/s41418-020-0535-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 12/21/2022] Open
Abstract
The incidence of nonmelanoma skin cancer (NMSC) has been increasing worldwide. Most studies have highlighted the importance of cancer-associated fibroblasts (CAFs) in NMSC progression. However much less is known about the communication between normal fibroblasts and epithelia; disruption of this communication affects tumor initiation and the latency period in the emergence of tumors. Delineating the mechanism that mediates this epithelial-mesenchymal communication in NMSC could identify more effective targeted therapies. The nuclear receptor PPARβ/δ in fibroblasts has been shown to modulate adjacent epithelial cell behavior, however, its role in skin tumorigenesis remains unknown. Using chemically induced skin carcinogenesis, we showed that FSPCre-Pparb/dex4 mice, whose Pparb/d gene was selectively deleted in fibroblasts, had delayed emergence and reduced tumor burden compared with control mice (Pparb/dfl/fl). However, FSPCre-Pparb/dex4-derived tumors showed increased proliferation, with no difference in differentiation, suggesting delayed tumor initiation. Network analysis revealed a link between dermal Pparb/d and TGF-β1 with epidermal NRF2 and Nox4. In vitro investigations showed that PPARβ/δ deficiency in fibroblasts increased epidermal Nox4-derived H2O2 production, which triggered an NRF2-mediated antioxidant response. We further showed that H2O2 upregulated NRF2 mRNA via the B-Raf-MEK1/2 pathway. The enhanced NRF2 response altered the activities of PTEN, Src, and AKT. In vivo, we detected the differential phosphorylation profiles of B-Raf, MEK1/2, PTEN, Src, and AKT in the vehicle-treated and chemically treated epidermis of FSPCre-Pparb/dex4 mice compared with that in Pparb/dfl/fl mice, prior to the first appearance of tumors in Pparb/dfl/fl. Our study revealed a role for fibroblast PPARβ/δ in the epithelial-mesenchymal communication involved in cellular redox homeostasis.
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15
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Kračun D, Klop M, Knirsch A, Petry A, Kanchev I, Chalupsky K, Wolf CM, Görlach A. NADPH oxidases and HIF1 promote cardiac dysfunction and pulmonary hypertension in response to glucocorticoid excess. Redox Biol 2020; 34:101536. [PMID: 32413743 PMCID: PMC7226895 DOI: 10.1016/j.redox.2020.101536] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/31/2020] [Accepted: 04/04/2020] [Indexed: 12/22/2022] Open
Abstract
Cardiovascular side effects are frequent problems accompanying systemic glucocorticoid therapy, although the underlying mechanisms are not fully resolved. Reactive oxygen species (ROS) have been shown to promote various cardiovascular diseases although the link between glucocorticoid and ROS signaling has been controversial. As the family of NADPH oxidases has been identified as important source of ROS in the cardiovascular system we investigated the role of NADPH oxidases in response to the synthetic glucocorticoid dexamethasone in the cardiovascular system in vitro and in vivo in mice lacking functional NADPH oxidases due to a mutation in the gene coding for the essential NADPH oxidase subunit p22phox. We show that dexamethasone induced NADPH oxidase-dependent ROS generation, leading to vascular proliferation and angiogenesis due to activation of the transcription factor hypoxia-inducible factor-1 (HIF1). Chronic treatment of mice with low doses of dexamethasone resulted in the development of systemic hypertension, cardiac hypertrophy and left ventricular dysfunction, as well as in pulmonary hypertension and pulmonary vascular remodeling. In contrast, mice deficient in p22phox-dependent NADPH oxidases were protected against these cardiovascular side effects. Mechanistically, dexamethasone failed to upregulate HIF1α levels in these mice, while vascular HIF1α deficiency prevented pulmonary vascular remodeling. Thus, p22phox-dependent NADPH oxidases and activation of the HIF pathway are critical elements in dexamethasone-induced cardiovascular pathologies and might provide interesting targets to limit cardiovascular side effects in patients on chronic glucocorticoid therapy.
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Affiliation(s)
- Damir Kračun
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Mathieu Klop
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Anna Knirsch
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Andreas Petry
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Ivan Kanchev
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Karel Chalupsky
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany; Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the ASCR, v. v. i., Prague, Czech Republic
| | - Cordula M Wolf
- Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
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16
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Shimokawa M, Yoshizumi T, Itoh S, Iseda N, Sakata K, Yugawa K, Toshima T, Harada N, Ikegami T, Mori M. Modulation of Nqo1 activity intercepts anoikis resistance and reduces metastatic potential of hepatocellular carcinoma. Cancer Sci 2020; 111:1228-1240. [PMID: 31968140 PMCID: PMC7156873 DOI: 10.1111/cas.14320] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 02/07/2023] Open
Abstract
The processing of intracellular reactive oxygen species (ROS) by nuclear factor erythroid‐derived 2‐like 2 (Nrf2) and NADPH quinone oxidoreductase 1 (Nqo1) is important for tumor metastasis. However, the clinical and biological significance of Nrf2/Nqo1 expression in hepatocellular carcinoma (HCC) remains unclear. We aimed to clarify the clinical importance of Nrf2/Nqo1 expression in HCC and evaluate the association of Nrf2/Nqo1 expression with HCC metastasis. We also evaluated the impact of Nqo1 modulation on HCC metastatic potential. We used spheroids derived from HCC cell lines. In anchorage‐independent culture, HCC cells showed increased ROS, leading to the upregulation of Nrf2/Nqo1. Futile stimulation of Nqo1 by β‐lapachone induces excessive oxidative stress and dramatically increased anoikis sensitivity, finally diminishing the spheroid formation ability, which was far stronger than depletion of Nqo1. We analyzed 117 cases of primary HCC who underwent curative resection. Overexpression of Nrf2/Nqo1 in primary HCC was associated with tumor size, high α‐fetoprotein, and des‐γ‐carboxy‐prothrombin levels. Overexpression of Nrf2/Nqo1 was also associated with multiple intrahepatic recurrences (P = .0073) and was an independent risk factor for poor prognosis (P = .0031). NADPH quinone oxidoreductase 1 plays an important role in anchorage‐independent survival, which is essential for survival for circulation and distant metastasis of HCC cells. These results suggest that targeting Nqo1 activity could be a potential strategy for HCC adjuvant therapy.
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Affiliation(s)
- Masahiro Shimokawa
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoharu Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinji Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norifumi Iseda
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhito Sakata
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kyohei Yugawa
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeo Toshima
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noboru Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toru Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaki Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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17
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Yang Y, Dong X, Zheng S, Sun J, Ye J, Chen J, Fang Y, Zhao B, Yin Z, Cao P, Luo L. GSTpi regulates VE-cadherin stabilization through promoting S-glutathionylation of Src. Redox Biol 2019; 30:101416. [PMID: 31927409 PMCID: PMC6957793 DOI: 10.1016/j.redox.2019.101416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/09/2019] [Accepted: 12/29/2019] [Indexed: 02/06/2023] Open
Abstract
GSTpi is a Phase II metabolic enzyme which is originally considered as an important facilitator of cellular detoxification. Here, we found that GSTpi stabilized VE-cadherin in endothelial cell membrane through inhibiting VE-cadherin phosphorylation and VE-cadherin/catenin complex dissociation, and consequently maintained endothelial barrier function. Our findings demonstrated a novel mechanism that GSTpi inhibited VE-cadherin phosphorylation through suppressing the activation of Src/VE-cadherin pathway. Mass spectrometry analysis and molecular docking showed that GSTpi enhanced Src S-glutathionylation at Cys185, Cys245, and Cys400 of Src. More important, we found that GSTpi promoted S-glutathionylation of Src was essential for GSTpi to inhibit Src phosphorylation and activation. Furthermore, in vivo experiments indicated that AAV-GSTpi exerted the protective effect on pulmonary vessel permeability in the animal model of acute lung injury. This study revealed a novel regulatory effect of GSTpi on vascular endothelial barrier function and the importance of S-glutathionylation of Src induced by GSTpi in the activation of Src/VE-cadherin pathway. GSTpi regulates endothelial barrier function in response to pro-inflammatory stress. GSTpi inhibits the destabilization of membrane VE-cadherin through suppressing the activation of Src/VE-cadherin pathway. GSTpi selectively inhibits Src phosphorylation by S-glutathionylating novel cysteines of Src. GSTpi exerts the protective effect on pulmonary vessel permeability in the animal model of acute lung injury.
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Affiliation(s)
- Yang Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093, Jiangsu, China; Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Xiaoliang Dong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093, Jiangsu, China
| | - Shuangning Zheng
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093, Jiangsu, China
| | - Jinbing Sun
- Changshu No.1 People's Hospital Affiliated to Soochow University, Changshu, 215500, China
| | - Juan Ye
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Jiao Chen
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Yuan Fang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Bing Zhao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Zhimin Yin
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, Jiangsu, China.
| | - Peng Cao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China; Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China; Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Lan Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093, Jiangsu, China.
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18
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Li X, Wang F, Ren M, Du M, Zhou J. The effects of c-Src kinase on EMT signaling pathway in human lens epithelial cells associated with lens diseases. BMC Ophthalmol 2019; 19:219. [PMID: 31703690 PMCID: PMC6842207 DOI: 10.1186/s12886-019-1229-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022] Open
Abstract
Background The signaling pathway of epithelial to mesenchymal transition (EMT) is regulated by c-Src kinase in many cells. The purpose of this study was to investigate the effects of c-Src kinase on EMT of human lens epithelial cells in vivo stimulated by different factors. Methods Human lens epithelial cells, HLE-B3, were exposed to either an inflammatory factor, specifically IL-1α, IL-6, TNF-α or IL-1β, at 10 ng/mL or high glucose (35.5 mM) for 30 mins. Activity of c-Src kinase was evaluated by the expression of p-Src418 with western blot assay. To investigate the effects of activation of c-Src on EMT, HLE-B3 cells were transfected with pCDNA3.1-SrcY530F to upregulate activity of c-Src kinase, and pSlience4.1-ShSrc to knock it down. The expressions of c-Src kinase and molecular markers of EMT such as E-cadherin, ZO-1, α-SMA, and Vimentin were examined at 48 h by RT-PCR and western blot. At 48 h and 72 h of transfection, cell proliferation was detected by MTT, and cell mobility and migration were determined by scratch and transwell assays. Results Activity of c-Src kinase, which causes the expression of p-Src418, was upregulated by different inflammatory factors and high glucose in HLE-B3 cells. When HLE-B3 cells were transfected with pCDNA3.1-SrcY530F, the expression of c-Src kinase was upregulated on both mRNA and protein levels, and activity of c-Src kinase, expression of p-Src418 increased. The expressions of both E-cadherin and ZO-1 were suppressed, while the expressions of vimentin and α-SMA were elevated on both mRNA and protein levels at the same time. Cell proliferation, mobility and migration increased along with activation of c-Src kinase. Conversely, when HLE-B3 cells were transfected with pSlience4.1-ShSrc, both c-Src kinase and p-Src418 expressions were knocked down. The expressions of E-cadherin and ZO-1 increased, but the expressions of Vimentin and α-SMA decreased; meanwhile, cell proliferation, mobility and migration reduced. Conclusions The c-Src kinase in lens epithelial cells is easily activated by external stimuli, resulting in the induction of cell proliferation, mobility, migration and EMT.
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Affiliation(s)
- Xingyu Li
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Fang Wang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Meixia Ren
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Minjuan Du
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jian Zhou
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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19
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The double inhibition of PDK1 and STAT3-Y705 prevents liver metastasis in colorectal cancer. Sci Rep 2019; 9:12973. [PMID: 31506552 PMCID: PMC6736869 DOI: 10.1038/s41598-019-49480-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 08/23/2019] [Indexed: 12/20/2022] Open
Abstract
As a key glycolysis enzyme, the significance of pyruvate dehydrogenase kinase 1 (PDK1) in the development of colorectal cancer (CRC) remains unknown. This study revealed that the prognosis of CRC patients with high levels of PDK1 was poor, and PDK1 knockdown significantly reduced liver metastasis of CRC in both nude mice and immune competent BALB/C mice. When combined with cryptotanshinone (CPT), an inhibitor of STAT3-p-Y705, the liver metastasis was further inhibited. PDK1 knockdown obviously increased reactive oxygen species level in anoikis conditions and subsequently resulted in an elevated anoikis, but the combination of PDK1 knockdown and CPT showed a reduced effect on anoikis. Based on this discrepancy, the adherence ability of CRC cells to matrix protein fibronectin was further detected. It showed that PDK1 knockdown significantly decreased the adherence of CRC cells to fibronectin when combined with CPT. These results suggest that inhibition of PDK1 can decrease the surviving CRC cells in blood circulation via up-regulation of anoikis, and inhibition of STAT3-p-Y705 can prevent it to settle down on the liver premetastatic niche, which ultimately reduces liver metastasis.
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20
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Böhmer A, Barz S, Schwab K, Kolbe U, Gabel A, Kirkpatrick J, Ohlenschläger O, Görlach M, Böhmer FD. Modulation of FLT3 signal transduction through cytoplasmic cysteine residues indicates the potential for redox regulation. Redox Biol 2019; 28:101325. [PMID: 31606550 PMCID: PMC6812047 DOI: 10.1016/j.redox.2019.101325] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/31/2019] [Accepted: 09/07/2019] [Indexed: 12/21/2022] Open
Abstract
Oxidative modification of cysteine residues has been shown to regulate the activity of several protein-tyrosine kinases. We explored the possibility that Fms-like tyrosine kinase 3 (FLT3), a hematopoietic receptor-tyrosine kinase, is subject to this type of regulation. An underlying rationale was that the FLT3 gene is frequently mutated in Acute Myeloid Leukemia patients, and resulting oncogenic variants of FLT3 with 'internal tandem duplications (FLT3ITD)' drive production of reactive oxygen in leukemic cells. FLT3 was moderately activated by treatment of intact cells with hydrogen peroxide. Conversely, FLT3ITD signaling was attenuated by cell treatments with agents inhibiting formation of reactive oxygen species. FLT3 and FLT3ITD incorporated DCP-Bio1, a reagent specifically reacting with sulfenic acid residues. Mutation of FLT3ITD cysteines 695 and 790 reduced DCP-Bio1 incorporation, suggesting that these sites are subject to oxidative modification. Functional characterization of individual FLT3ITD cysteine-to-serine mutants of all 8 cytoplasmic cysteines revealed phenotypes in kinase activity, signal transduction and cell transformation. Replacement of cysteines 681, 694, 695, 807, 925, and 945 attenuated signaling and blocked FLT3ITD-mediated cell transformation, whereas mutation of cysteine 790 enhanced activity of both FLT3ITD and wild-type FLT3. These effects were not related to altered FLT3ITD dimerization, but likely caused by changed intramolecular interactions. The findings identify the functional relevance of all cytoplasmic FLT3ITD cysteines, and indicate the potential for redox regulation of this clinically important oncoprotein.
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Affiliation(s)
- Annette Böhmer
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Saskia Barz
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Katjana Schwab
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Ulrike Kolbe
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | - Anke Gabel
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany
| | | | | | - Matthias Görlach
- Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany
| | - Frank-D Böhmer
- Institute of Molecular Cell Biology, CMB, Jena University Hospital, Jena, Germany.
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21
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Mohamed R, Janke R, Guo W, Cao Y, Zhou Y, Zheng W, Babaahmadi-Rezaei H, Xu S, Kamato D, Little PJ. GPCR transactivation signalling in vascular smooth muscle cells: role of NADPH oxidases and reactive oxygen species. VASCULAR BIOLOGY (BRISTOL, ENGLAND) 2019; 1:R1-R11. [PMID: 32923966 PMCID: PMC7439842 DOI: 10.1530/vb-18-0004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 07/23/2019] [Indexed: 02/02/2023]
Abstract
The discovery and extension of G-protein-coupled receptor (GPCR) transactivation-dependent signalling has enormously broadened the GPCR signalling paradigm. GPCRs can transactivate protein tyrosine kinase receptors (PTKRs) and serine/threonine kinase receptors (S/TKRs), notably the epidermal growth factor receptor (EGFR) and transforming growth factor-β type 1 receptor (TGFBR1), respectively. Initial comprehensive mechanistic studies suggest that these two transactivation pathways are distinct. Currently, there is a focus on GPCR inhibitors as drug targets, and they have proven to be efficacious in vascular diseases. With the broadening of GPCR transactivation signalling, it is therefore important from a therapeutic perspective to find a common transactivation pathway of EGFR and TGFBR1 that can be targeted to inhibit complex pathologies activated by the combined action of these receptors. Reactive oxygen species (ROS) are highly reactive molecules and they act as second messengers, thus modulating cellular signal transduction pathways. ROS are involved in different mechanisms of GPCR transactivation of EGFR. However, the role of ROS in GPCR transactivation of TGFBR1 has not yet been studied. In this review, we will discuss the involvement of ROS in GPCR transactivation-dependent signalling.
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Affiliation(s)
- Raafat Mohamed
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
- Department of Basic Sciences, College of Dentistry, University of Mosul, Mosul, Iraq
| | - Reearna Janke
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
| | - Wanru Guo
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
| | - Yingnan Cao
- Department of Pharmacy, Xinhua College of Sun Yat-sen University, Guangzhou, China
| | - Ying Zhou
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
| | - Wenhua Zheng
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Hossein Babaahmadi-Rezaei
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Atherosclerosis Research Center, Ahvaz, Iran
| | - Suowen Xu
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Danielle Kamato
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
- Department of Pharmacy, Xinhua College of Sun Yat-sen University, Guangzhou, China
| | - Peter J Little
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Queensland, Australia
- Department of Pharmacy, Xinhua College of Sun Yat-sen University, Guangzhou, China
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22
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B7-H3 promotes multiple myeloma cell survival and proliferation by ROS-dependent activation of Src/STAT3 and c-Cbl-mediated degradation of SOCS3. Leukemia 2018; 33:1475-1486. [PMID: 30573782 DOI: 10.1038/s41375-018-0331-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/17/2018] [Accepted: 11/16/2018] [Indexed: 12/16/2022]
Abstract
B7-H3 (CD276) is broadly overexpressed by multiple human cancers. It plays a vital role in tumor progression and has been accepted as one of the inhibitory B7 family checkpoint molecules. To identify the functions and underlying mechanisms of B7-H3 in multiple myeloma, we analyzed B7-H3 expression in myeloma patients and used siRNAs and overexpression plasmid of B7-H3 to investigate its roles and downstream signaling molecules in myeloma cell lines. The results showed that surface expression of B7-H3 was upregulated in myeloma samples and cell lines. Lower expression of B7-H3 in myeloma cells was associated with better progression-free survival. Myeloma cell survival, drug resistance, and tumor growth could be promoted by B7-H3. The molecular basis for these functional roles of B7-H3 involved the activation of JAK2/STAT3 via redox-mediated oxidation and activation of Src. We further identified a STAT3-promoting signaling pathway by which oxidant-mediated Src phosphorylation led to secondary activation of the E3 ubiquitin ligase c-Cbl. Activated c-Cbl subsequently caused specific proteasomal degradation of SOCS3, a negative regulator of JAK2/STAT3. These data indicate B7-H3's important role in the activation of ROS/Src/c-Cbl pathway in multiple myeloma which integrates redox regulation and sustained STAT3 activation at the level of degradation of STAT3 suppressor.
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23
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Heppner DE, Dustin CM, Liao C, Hristova M, Veith C, Little AC, Ahlers BA, White SL, Deng B, Lam YW, Li J, van der Vliet A. Direct cysteine sulfenylation drives activation of the Src kinase. Nat Commun 2018; 9:4522. [PMID: 30375386 PMCID: PMC6207713 DOI: 10.1038/s41467-018-06790-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/19/2018] [Indexed: 01/17/2023] Open
Abstract
The Src kinase controls aspects of cell biology and its activity is regulated by intramolecular structural changes induced by protein interactions and tyrosine phosphorylation. Recent studies indicate that Src is additionally regulated by redox-dependent mechanisms, involving oxidative modification(s) of cysteines within the Src protein, although the nature and molecular-level impact of Src cysteine oxidation are unknown. Using a combination of biochemical and cell-based studies, we establish the critical importance of two Src cysteine residues, Cys-185 and Cys-277, as targets for H2O2-mediated sulfenylation (Cys-SOH) in redox-dependent kinase activation in response to NADPH oxidase-dependent signaling. Molecular dynamics and metadynamics simulations reveal the structural impact of sulfenylation of these cysteines, indicating that Cys-277-SOH enables solvent exposure of Tyr-416 to promote its (auto)phosphorylation, and that Cys-185-SOH destabilizes pTyr-527 binding to the SH2 domain. These redox-dependent Src activation mechanisms offer opportunities for development of Src-selective inhibitors in treatment of diseases where Src is aberrantly activated.
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Affiliation(s)
- David E Heppner
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA.
- Department of Cancer Biology, Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA, 02215, USA.
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave, Boston, MA, 02115, USA.
| | - Christopher M Dustin
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA
| | - Chenyi Liao
- Department of Chemistry, College of Arts and Sciences, University of Vermont, 82 University Place, Burlington, VT, 05405, USA
| | - Milena Hristova
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA
| | - Carmen Veith
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA
| | - Andrew C Little
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA
| | - Bethany A Ahlers
- Department of Biology, College of Arts and Sciences, University of Vermont, 109 Carrigan Drive, Burlington, VT, 05405, USA
| | - Sheryl L White
- Department of Neurological Sciences, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA
| | - Bin Deng
- Department of Biology, College of Arts and Sciences, University of Vermont, 109 Carrigan Drive, Burlington, VT, 05405, USA
| | - Ying-Wai Lam
- Department of Biology, College of Arts and Sciences, University of Vermont, 109 Carrigan Drive, Burlington, VT, 05405, USA
| | - Jianing Li
- Department of Chemistry, College of Arts and Sciences, University of Vermont, 82 University Place, Burlington, VT, 05405, USA.
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine University of Vermont, 149 Beaumont Avenue, Burlington, VT, 05405, USA.
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24
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Nelson KJ, Bolduc JA, Wu H, Collins JA, Burke EA, Reisz JA, Klomsiri C, Wood ST, Yammani RR, Poole LB, Furdui CM, Loeser RF. H 2O 2 oxidation of cysteine residues in c-Jun N-terminal kinase 2 (JNK2) contributes to redox regulation in human articular chondrocytes. J Biol Chem 2018; 293:16376-16389. [PMID: 30190325 DOI: 10.1074/jbc.ra118.004613] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/04/2018] [Indexed: 01/01/2023] Open
Abstract
Reactive oxygen species (ROS), in particular H2O2, regulate intracellular signaling through reversible oxidation of reactive protein thiols present in a number of kinases and phosphatases. H2O2 has been shown to regulate mitogen-activated protein kinase (MAPK) signaling depending on the cellular context. We report here that in human articular chondrocytes, the MAPK family member c-Jun N-terminal kinase 2 (JNK2) is activated by fibronectin fragments and low physiological levels of H2O2 and inhibited by oxidation due to elevated levels of H2O2 The kinase activity of affinity-purified, phosphorylated JNK2 from cultured chondrocytes was reversibly inhibited by 5-20 μm H2O2 Using dimedone-based chemical probes that react specifically with sulfenylated cysteines (RSOH), we identified Cys-222 in JNK2, a residue not conserved in JNK1 or JNK3, as a redox-reactive site. MS analysis of human recombinant JNK2 also detected further oxidation at Cys-222 and other cysteines to sulfinic (RSO2H) or sulfonic (RSO3H) acid. H2O2 treatment of JNK2 resulted in detectable levels of peptides containing intramolecular disulfides between Cys-222 and either Cys-213 or Cys-177, without evidence of dimer formation. Substitution of Cys-222 to alanine rendered JNK2 insensitive to H2O2 inhibition, unlike C177A and C213A variants. Two other JNK2 variants, C116A and C163A, were also resistant to oxidative inhibition. Cumulatively, these findings indicate differential regulation of JNK2 signaling dependent on H2O2 levels and point to key cysteine residues regulating JNK2 activity. As levels of intracellular H2O2 rise, a switch occurs from activation to inhibition of JNK2 activity, linking JNK2 regulation to the redox status of the cell.
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Affiliation(s)
| | - Jesalyn A Bolduc
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Hanzhi Wu
- the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | - John A Collins
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Elizabeth A Burke
- the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | - Julie A Reisz
- the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | - Chananat Klomsiri
- From the Department of Biochemistry and.,the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | - Scott T Wood
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Raghunatha R Yammani
- the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | | | - Cristina M Furdui
- the Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 and
| | - Richard F Loeser
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, North Carolina 27599
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25
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Mechanisms underlying modulation of podocyte TRPC6 channels by suPAR: Role of NADPH oxidases and Src family tyrosine kinases. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3527-3536. [PMID: 30293571 DOI: 10.1016/j.bbadis.2018.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/02/2018] [Accepted: 08/06/2018] [Indexed: 01/10/2023]
Abstract
The soluble urokinase receptor (suPAR) has been implicated in the pathogenesis of chronic kidney diseases (CKD) and may function as a circulating "permeability factor" driving primary focal and segmental glomerulosclerosis (FSGS). Here we examined the mechanisms whereby suPAR causes mobilization and increased activation of Ca2+-permeable TRPC6 channels, which are also implicated in FSGS. Treatment of immortalized mouse podocytes with recombinant suPAR for 24 h caused a marked increase in cytosolic reactive oxygen species (ROS) that required signaling through integrins. This effect was associated with increased assembly of active cell surface NADPH oxidase 2 (Nox2) complexes and was blocked by the Nox2 inhibitor apoycynin. Treatment with suPAR also evoked a functionally measurable increase in TRPC6 channels that was blocked by concurrent treatment with the ROS-quencher TEMPOL as well as by inhibition of Rac1, an essential component of active Nox2 complexes. Elevated ROS evoked by exposing cells to suPAR or H2O2 caused a marked increase in the abundance of tyrosine-phosphorylated proteins including Src, and suPAR-evoked Src activation was blocked by TEMPOL. Moreover, mobilization and increased activation of TRPC6 by suPAR or H2O2 was blocked by concurrent exposure to PP2, an inhibitor of Src family tyrosine kinases. These data suggest that suPAR induces oxidative stress in podocytes that in turn drives signaling through Src family kinases to upregulate TRPC6 channels. The combination of oxidative stress and altered Ca2+ signaling may contribute to loss of podocytes and progression of various forms of CKD.
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26
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Erard M, Dupré-Crochet S, Nüße O. Biosensors for spatiotemporal detection of reactive oxygen species in cells and tissues. Am J Physiol Regul Integr Comp Physiol 2018; 314:R667-R683. [PMID: 29341828 DOI: 10.1152/ajpregu.00140.2017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Redox biology has become a major issue in numerous areas of physiology. Reactive oxygen species (ROS) have a broad range of roles from signal transduction to growth control and cell death. To understand the nature of these roles, accurate measurement of the reactive compounds is required. An increasing number of tools for ROS detection is available; however, the specificity and sensitivity of these tools are often insufficient. Furthermore, their specificity has been rarely evaluated in complex physiological conditions. Many ROS probes are sensitive to environmental conditions in particular pH, which may interfere with ROS detection and cause misleading results. Accurate detection of ROS in physiology and pathophysiology faces additional challenges concerning the precise localization of the ROS and the timing of their production and disappearance. Certain ROS are membrane permeable, and certain ROS probes move across cells and organelles. Targetable ROS probes such as fluorescent protein-based biosensors are required for accurate localization. Here we analyze these challenges in more detail, provide indications on the strength and weakness of current tools for ROS detection, and point out developments that will provide improved ROS detection methods in the future. There is no universal method that fits all situations in physiology and cell biology. A detailed knowledge of the ROS probes is required to choose the appropriate method for a given biological problem. The knowledge of the shortcomings of these probes should also guide the development of new sensors.
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Affiliation(s)
- Marie Erard
- Université Paris-Sud, Université Paris-Saclay , Orsay , France.,Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
| | - Sophie Dupré-Crochet
- Université Paris-Sud, Université Paris-Saclay , Orsay , France.,Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
| | - Oliver Nüße
- Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
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27
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Redox regulation in tumor cell epithelial-mesenchymal transition: molecular basis and therapeutic strategy. Signal Transduct Target Ther 2017; 2:17036. [PMID: 29263924 PMCID: PMC5661624 DOI: 10.1038/sigtrans.2017.36] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/25/2017] [Accepted: 04/25/2017] [Indexed: 02/05/2023] Open
Abstract
Epithelial–mesenchymal transition (EMT) is recognized as a driving force of cancer cell metastasis and drug resistance, two leading causes of cancer recurrence and cancer-related death. It is, therefore, logical in cancer therapy to target the EMT switch to prevent such cancer metastasis and recurrence. Previous reports have indicated that growth factors (such as epidermal growth factor and fibroblast growth factor) and cytokines (such as the transforming growth factor beta (TGF-β) family) are major stimulators of EMT. However, the mechanisms underlying EMT initiation and progression remain unclear. Recently, emerging evidence has suggested that reactive oxygen species (ROS), important cellular secondary messengers involved in diverse biological events in cancer cells, play essential roles in the EMT process in cancer cells by regulating extracellular matrix (ECM) remodeling, cytoskeleton remodeling, cell–cell junctions, and cell mobility. Thus, targeting EMT by manipulating the intracellular redox status may hold promise for cancer therapy. Herein, we will address recent advances in redox biology involved in the EMT process in cancer cells, which will contribute to the development of novel therapeutic strategies by targeting redox-regulated EMT for cancer treatment.
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28
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Abstract
Thiol groups can undergo numerous modifications, making cysteine a unique molecular switch. Cysteine plays structural and regulatory roles as part of proteins or glutathione, contributing to maintain redox homeostasis and regulate signaling within and amongst cells. Not surprisingly therefore, cysteines are associated with many hereditary and acquired diseases. Mutations in the primary protein sequence (gain or loss of a cysteine) are most frequent in membrane and secretory proteins, correlating with the key roles of disulfide bonds. On the contrary, in the cytosol and nucleus, aberrant post-translational oxidative modifications of thiol groups, reflecting redox changes in the surrounding environment, are a more frequent cause of dysregulation of protein function. This essay highlights the regulatory functions performed by protein cysteine residues and provides a framework for understanding how mutation and/or (in)activation of this key amino acid can cause disease.
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Affiliation(s)
- Annamaria Fra
- Department of Molecular and Translational Medicine, University of BresciaBrescia, Italy
| | - Edgar D Yoboue
- Division of Genetics and Cell Biology, Vita-Salute San Raffaele UniversityMilan, Italy.,Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific InstituteMilan, Italy
| | - Roberto Sitia
- Division of Genetics and Cell Biology, Vita-Salute San Raffaele UniversityMilan, Italy.,Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific InstituteMilan, Italy
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29
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Ganapathy S, Li P, Lafontant J, Xiong R, Yu T, Zhang G, Chen C. Chromium IV exposure, via Src/Ras signaling, promotes cell transformation. Mol Carcinog 2017; 56:1808-1815. [PMID: 28218450 DOI: 10.1002/mc.22639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/13/2017] [Accepted: 02/16/2017] [Indexed: 01/01/2023]
Abstract
Hexavalent chromium [Cr(VI)] is a well-known environment carcinogen. The exposure of Cr(VI) through contaminated soil, air particles, and drinking water is a strong concern for the public health worldwide. While many studies have been done, it remains unclear which intracellular molecules transduce Cr(VI)-mediated carcinogenic signaling in cells to promote cancer. In this study, we demonstrated that upon Cr(VI) treatment, the intracellular receptor src was activated, which further upregulated Ras activity, leading to the augmentation of ROS and onset of ER stress in human lung epithelial BEAS-2B or keratinocytes. These cells were formed colonies in soft agar cultures following the persistent Cr(VI) treatment. Furthermore, anti-apoptotic factor Bcl-2 was upregulated and activated in the colonies. Thus, our study suggests that Cr(VI), though activating the src and Ras signaling axis, perturbs redox state and invokes ER stress for the establishment of carcinogenic actions in the cells. In this process, Bcl-2 appears playing an important role. By uncovering these intracellular targets, our study may help developing novel strategies for better environmental protection, especially in areas contaminated or polluted by Cr(VI) as well as for effective cancer treatments.
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Affiliation(s)
- Suthakar Ganapathy
- Center for Drug Development, Northeastern University, Boston, Massachusetts
| | - Ping Li
- The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China.,The Institute of Clinic Sciences, Sahlgrenska Academy, Gothenburg, Sweden
| | - Jean Lafontant
- Center for Drug Development, Northeastern University, Boston, Massachusetts
| | - Rui Xiong
- The Institute of Clinic Sciences, Sahlgrenska Academy, Gothenburg, Sweden
| | - Tianqi Yu
- Center for Drug Development, Northeastern University, Boston, Massachusetts
| | - Guojun Zhang
- The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Changyan Chen
- Center for Drug Development, Northeastern University, Boston, Massachusetts
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30
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Extracellular Superoxide Dismutase Expression in Papillary Thyroid Cancer Mesenchymal Stem/Stromal Cells Modulates Cancer Cell Growth and Migration. Sci Rep 2017; 7:41416. [PMID: 28216675 PMCID: PMC5316948 DOI: 10.1038/srep41416] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 12/19/2016] [Indexed: 12/14/2022] Open
Abstract
Tumor stroma-secreted growth factors, cytokines, and reactive oxygen species (ROS) influence tumor development from early stages to the metastasis phase. Previous studies have demonstrated downregulation of ROS-producing extracellular superoxide dismutase (SOD3) in thyroid cancer cell lines although according to recent data, the expression of SOD3 at physiological levels stimulates normal and cancer cell proliferation. Therefore, to analyze the expression of SOD3 in tumor stroma, we characterized stromal cells from the thyroid. We report mutually exclusive desmoplasia and inflammation in papillary and follicular thyroid cancers and the presence of multipotent mesenchymal stem/stromal cells (MSCs) in non-carcinogenic thyroids and papillary thyroid cancer (PTC). The phenotypic and differentiation characteristics of Thyroid MSCs and PTC MSCs were comparable with bone marrow MSCs. A molecular level analysis showed increased FIBROBLAST ACTIVATING PROTEIN, COLLAGEN 1 TYPE A1, TENASCIN, and SOD3 expression in PTC MSCs compared to Thyroid MSCs, suggesting the presence of MSCs with a fibrotic fingerprint in papillary thyroid cancer tumors and the autocrine-paracrine conversion of SOD3 expression, which was enhanced by cancer cells. Stromal SOD3 had a stimulatory effect on cancer cell growth and an inhibitory effect on cancer cell migration, thus indicating that SOD3 might be a novel player in thyroid tumor stroma.
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31
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Chan JSK, Tan MJ, Sng MK, Teo Z, Phua T, Choo CC, Li L, Zhu P, Tan NS. Cancer-associated fibroblasts enact field cancerization by promoting extratumoral oxidative stress. Cell Death Dis 2017; 8:e2562. [PMID: 28102840 PMCID: PMC5386391 DOI: 10.1038/cddis.2016.492] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 12/24/2022]
Abstract
Histological inspection of visually normal tissue adjacent to neoplastic lesions often reveals multiple foci of cellular abnormalities. This suggests the presence of a regional carcinogenic signal that spreads oncogenic transformation and field cancerization. We observed an abundance of mutagenic reactive oxygen species in the stroma of cryosectioned patient tumor biopsies, indicative of extratumoral oxidative stress. Diffusible hydrogen peroxide (H2O2) was elevated in the conditioned medium of cultured skin epithelia at various stages of oncogenic transformation, and H2O2 production increased with greater tumor-forming and metastatic capacity of the studied cell lines. Explanted cancer-associated fibroblasts (CAFs) also had higher levels of H2O2 secretion compared with normal fibroblasts (FIBs). These results suggest that extracellular H2O2 acts as a field effect carcinogen. Indeed, H2O2-treated keratinocytes displayed decreased phosphatase and tensin homolog (PTEN) and increased Src activities because of oxidative modification. Furthermore, treating FIBs with CAF-conditioned medium or exogenous H2O2 resulted in the acquisition of an oxidative, CAF-like state. In vivo, the proliferative potential and invasiveness of composite tumor xenografts comprising cancerous or non-tumor-forming epithelia with CAFs and FIBs could be attenuated by the presence of catalase. Importantly, we showed that oxidatively transformed FIBs isolated from composite tumor xenografts retained their ability to promote tumor growth and aggressiveness when adoptively transferred into new xenografts. Higher H2O2 production by CAFs was contingent on impaired TGFβ signaling leading to the suppression of the antioxidant enzyme glutathione peroxidase 1 (GPX1). Finally, we detected a reduction in Smad3, TAK1 and TGFβRII expression in a cohort of 197 clinical squamous cell carcinoma (SCC) CAFs, suggesting that impaired stromal TGFβ signaling may be a clinical feature of SCC. Our study indicated that CAFs and cancer cells engage redox signaling circuitries and mitogenic signaling to reinforce their reciprocal relationship, suggesting that future anticancer approaches should simultaneously target ligand receptor and redox-mediated pathways.
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Affiliation(s)
- Jeremy Soon Kiat Chan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Ming Jie Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Ming Keat Sng
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Ziqiang Teo
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Terri Phua
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore.,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Nobelsväg 16, StockholmSweden
| | - Chee Chong Choo
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Liang Li
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Pengcheng Zhu
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, 50 Nanyang Avenue, Singapore.,Institute of Molecular and Cell Biology, A*STAR, 61 Biopolis Drive, Proteos, Singapore.,KK Women's and Children Hospital, 100 Bukit Timah Road, Singapore
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32
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Regulation of anoikis resistance by NADPH oxidase 4 and epidermal growth factor receptor. Br J Cancer 2017; 116:370-381. [PMID: 28081539 PMCID: PMC5294491 DOI: 10.1038/bjc.2016.440] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/03/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Normal cells are sensitive to anoikis, which is a cell detachment-induced apoptosis. However, cancer cells acquire anoikis resistance that is essential for successful metastasis. This study aimed to demonstrate the function and potential mechanism of NADPH oxidase 4 (NOX4) and EGFR activation in regulating anoikis resistance in lung cancer. METHODS Cells were cultured either in the attached or suspended condition. Cell viability was measured by cell counting and live and dead cell staining. Expression levels of NOX4 and EGFR were measured by PCR and immunoblotting. Reactive oxygen species (ROS) levels were measured by flow cytometry. Effects of NOX4 overexpression or NOX4 knockdown by si-NOX4 on anoikis sensitivity were explored. Levels of NOX4 and EGFR in lung cancer tissues were evaluated by IHC staining. RESULTS NOX4 was upregulated but EGFR decreased in suspended cells compared with attached cells. Accordingly, ROS levels were increased in suspended cells, resulting in the activation of Src and EGFR. NOX4 knockdown decreased activation of Src and EGFR, and thus sensitised cells to anoikis. NOX4 overexpression increased EGFR levels and attenuated anoikis. NOX4 expression is upregulated and is positively correlated with EGFR levels in the lung cancer patient tissues. CONCLUSIONS NOX4 upregulation confers anoikis resistance by ROS-mediated activation of EGFR and Src, and by maintaining EGFR levels, which is critical for cell survival.
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Switching on a transient endogenous ROS production in mammalian cells and tissues. Methods 2016; 109:180-189. [DOI: 10.1016/j.ymeth.2016.08.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/07/2016] [Accepted: 08/27/2016] [Indexed: 11/23/2022] Open
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c- Src and its role in cystic fibrosis. Eur J Cell Biol 2016; 95:401-413. [DOI: 10.1016/j.ejcb.2016.08.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 12/15/2022] Open
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Danyal K, de Jong W, O'Brien E, Bauer RA, Heppner DE, Little AC, Hristova M, Habibovic A, van der Vliet A. Acrolein and thiol-reactive electrophiles suppress allergen-induced innate airway epithelial responses by inhibition of DUOX1 and EGFR. Am J Physiol Lung Cell Mol Physiol 2016; 311:L913-L923. [PMID: 27612966 DOI: 10.1152/ajplung.00276.2016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 09/05/2016] [Indexed: 01/27/2023] Open
Abstract
Acrolein is a major thiol-reactive component of cigarette smoke (CS) that is thought to contribute to increased asthma incidence associated with smoking. Here, we explored the effects of acute acrolein exposure on innate airway responses to two common airborne allergens, house dust mite and Alternaria alternata, and observed that acrolein exposure of C57BL/6 mice (5 ppm, 4 h) dramatically inhibited innate airway responses to subsequent allergen challenge, demonstrated by attenuated release of the epithelial-derived cytokines IL-33, IL-25, and IL-1α. Acrolein and other anti-inflammatory thiol-reactive electrophiles, cinnamaldehyde, curcumin, and sulforaphane, similarly inhibited allergen-induced production of these cytokines from human or murine airway epithelial cells in vitro. Based on our previous observations indicating the importance of Ca2+-dependent signaling, activation of the NADPH oxidase DUOX1, and Src/EGFR-dependent signaling in allergen-induced epithelial secretion of these cytokines, we explored the impact of acrolein on these pathways. Acrolein and other thiol-reactive electrophiles were found to dramatically prevent allergen-induced activation of DUOX1 as well as EGFR, and acrolein was capable of inhibiting EGFR tyrosine kinase activity via modification of C797. Biotin-labeling strategies indicated increased cysteine modification and carbonylation of Src, EGFR, as well as DUOX1, in response to acrolein exposure in vitro and in vivo, suggesting that direct alkylation of these proteins on accessible cysteine residues may be responsible for their inhibition. Collectively, our findings indicate a novel anti-inflammatory mechanism of CS-derived acrolein and other thiol-reactive electrophiles, by directly inhibiting DUOX1- and EGFR-mediated airway epithelial responses to airborne allergens.
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Affiliation(s)
- Karamatullah Danyal
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Willem de Jong
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Edmund O'Brien
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Robert A Bauer
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - David E Heppner
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Andrew C Little
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Milena Hristova
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
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Matsushima S, Kuroda J, Zhai P, Liu T, Ikeda S, Nagarajan N, Oka SI, Yokota T, Kinugawa S, Hsu CP, Li H, Tsutsui H, Sadoshima J. Tyrosine kinase FYN negatively regulates NOX4 in cardiac remodeling. J Clin Invest 2016; 126:3403-16. [PMID: 27525436 DOI: 10.1172/jci85624] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 06/30/2016] [Indexed: 01/05/2023] Open
Abstract
NADPH oxidases (Noxes) produce ROS that regulate cell growth and death. NOX4 expression in cardiomyocytes (CMs) plays an important role in cardiac remodeling and injury, but the posttranslational mechanisms that modulate this enzyme are poorly understood. Here, we determined that FYN, a Src family tyrosine kinase, interacts with the C-terminal domain of NOX4. FYN and NOX4 colocalized in perinuclear mitochondria, ER, and nuclear fractions in CMs, and FYN expression negatively regulated NOX4-induced O2- production and apoptosis in CMs. Mechanistically, we found that direct phosphorylation of tyrosine 566 on NOX4 was critical for this FYN-mediated negative regulation. Transverse aortic constriction activated FYN in the left ventricle (LV), and FYN-deficient mice displayed exacerbated cardiac hypertrophy and dysfunction and increased ROS production and apoptosis. Deletion of Nox4 rescued the exaggerated LV remodeling in FYN-deficient mice. Furthermore, FYN expression was markedly decreased in failing human hearts, corroborating its role as a regulator of cardiac cell death and ROS production. In conclusion, FYN is activated by oxidative stress and serves as a negative feedback regulator of NOX4 in CMs during cardiac remodeling.
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Caspase-8 expression and its Src-dependent phosphorylation on Tyr380 promote cancer cell neoplastic transformation and resistance to anoikis. Exp Cell Res 2016; 347:114-122. [PMID: 27432652 DOI: 10.1016/j.yexcr.2016.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 11/20/2022]
Abstract
Caspase-8 expression is lost in a small percentage of tumors suggesting that the retention of its functionality may positively contribute to tumor progression. Consistently, several non-apoptotic functions of Caspase-8 have been identified and Caspase-8 has been shown to modulate cell adhesion, migration and to promote tumor progression. We have previously identified the Src-dependent phosphorylation of Caspase-8 on Tyr380 as a molecular mechanism to downregulate the proapoptotic function of Caspase-8; this phosphorylation occurs in colon cancer and may promote cell migration in neuroblastoma cell lines. However, the occurrence of Caspase-8 phosphorylation on Tyr380 and its significance in different carcinoma cellular models, have not been clarified yet. Here we show that Caspase-8 expression may promote cell transformation in glioblastoma and in hepatocarcinoma cell lines. In these systems Caspase-8 is phosphorylated on Tyr380 in a Src kinase dependent manner and this phosphorylation is required for transformation and it is enhanced by hypoxic conditions. Using a cancer cellular model characterized by Src constitutive activation engineered to express either Caspase-8-wt or Caspase-8-Y380F we could show that Caspase-8 expression and its phosphorylation on Tyr380, but not its enzymatic activity, promote in vitro cell transformation and resistance to anoikis. This work demonstrates a dual role for Caspase-8 in cancer, suggesting that Tyr380 phosphorylation may represent a molecular switch to hijack its activity from tumor suppressor to tumor promoter.
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Wood ST, Long DL, Reisz JA, Yammani RR, Burke EA, Klomsiri C, Poole LB, Furdui CM, Loeser RF. Cysteine-Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments. Arthritis Rheumatol 2016; 68:117-26. [PMID: 26314228 DOI: 10.1002/art.39326] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 08/06/2015] [Indexed: 12/28/2022]
Abstract
OBJECTIVE Oxidative posttranslational modifications of intracellular proteins can potentially regulate signaling pathways relevant to cartilage destruction in arthritis. In this study, oxidation of cysteine residues to form sulfenic acid (S-sulfenylation) was examined in osteoarthritic (OA) chondrocytes and investigated in normal chondrocytes as a mechanism by which fragments of fibronectin (FN-f) stimulate chondrocyte catabolic signaling. METHODS Chondrocytes isolated from OA and normal human articular cartilage were analyzed using analogs of dimedone that specifically and irreversibly react with protein S-sulfenylated cysteines. Global S-sulfenylation was measured in cell lysates with and without FN-f stimulation by immunoblotting and in fixed cells by confocal microscopy. S-sulfenylation in specific proteins was identified by mass spectroscopy and confirmed by immunoblotting. Src activity was measured in live cells using a fluorescence resonance energy transfer biosensor. RESULTS Proteins in chondrocytes isolated from OA cartilage were found to have elevated basal levels of S-sulfenylation relative to those of chondrocytes from normal cartilage. Treatment of normal chondrocytes with FN-f induced increased levels of S-sulfenylation in multiple proteins, including the tyrosine kinase Src. FN-f treatment also increased the levels of Src activity. Pretreatment with dimedone to alter S-sulfenylation function or with Src kinase inhibitors inhibited FN-f-induced production of matrix metalloproteinase 13. CONCLUSION These results demonstrate for the first time the presence of oxidative posttranslational modification of proteins in human articular chondrocytes by S-sulfenylation. Due to the ability to regulate the activity of a number of cell signaling pathways, including catabolic mediators induced by fibronectin fragments, S-sulfenylation may contribute to cartilage destruction in OA and warrants further investigation.
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Affiliation(s)
- Scott T Wood
- University of North Carolina School of Medicine, Chapel Hill
| | - David L Long
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Julie A Reisz
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | | | - Elizabeth A Burke
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Chananat Klomsiri
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Leslie B Poole
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Cristina M Furdui
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
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Karimi Galougahi K, Ashley EA, Ali ZA. Redox regulation of vascular remodeling. Cell Mol Life Sci 2016; 73:349-63. [PMID: 26483132 PMCID: PMC11108558 DOI: 10.1007/s00018-015-2068-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 01/09/2023]
Abstract
Vascular remodeling is a dynamic process of structural and functional changes in response to biochemical and biomechanical signals in a complex in vivo milieu. While inherently adaptive, dysregulation leads to maladaptive remodeling. Reactive oxygen species participate in homeostatic cell signaling in tightly regulated- and compartmentalized cellular circuits. It is well established that perturbations in oxidation-reduction (redox) homeostasis can lead to a state of oxidative-, and more recently, reductive stress. We provide an overview of the redox signaling in the vasculature and review the role of oxidative- and reductive stress in maladaptive vascular remodeling. Particular emphasis has been placed on essential processes that determine phenotype modulation, migration and fate of the main cell types in the vessel wall. Recent advances in systems biology and the translational opportunities they may provide to specifically target the redox pathways driving pathological vascular remodeling are discussed.
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Affiliation(s)
- Keyvan Karimi Galougahi
- Division of Cardiology, Center for Interventional Vascular Therapy, New York Presbyterian Hospital and Columbia University, New York, NY, USA.
- Sydney Medical School Foundation, University of Sydney, Sydney, Australia.
| | - Euan A Ashley
- Division of Cardiology, Stanford University, Stanford, CA, USA
| | - Ziad A Ali
- Division of Cardiology, Center for Interventional Vascular Therapy, New York Presbyterian Hospital and Columbia University, New York, NY, USA
- Cardiovascular Research Foundation, New York, NY, USA
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Src Family Kinases in Brain Edema After Acute Brain Injury. ACTA NEUROCHIRURGICA. SUPPLEMENT 2016; 121:185-90. [PMID: 26463946 DOI: 10.1007/978-3-319-18497-5_33] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Brain edema, the first stage of intracranial hypertension, has been associated with poor prognosis and increased mortality after acute brain injury such as ischemic stroke, intracranial hemorrhage (ICH), and traumatic brain injury (TBI). Acute brain injury often initiates release of many molecules, including glutamate, adenosine, thrombin, oxyhemoglobin, cytokines, reactive oxygen species (ROS), damage-associated molecular pattern molecules (DAMPs), and others. Most of these molecules activate Src family kinases (SFKs), a family of proto-oncogenic non-receptor tyrosine kinases, resulting in blood-brain barrier (BBB) disruption and brain edema at the acute stage after brain injury. However, SFKs also contribute to BBB self-repair and brain edema resolution in the chronic stage that follows brain injury. In this review, we summarize possible pathways through which SFKs are implicated in both brain edema formation and its eventual resolution.
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Heppner DE, van der Vliet A. Redox-dependent regulation of epidermal growth factor receptor signaling. Redox Biol 2015; 8:24-7. [PMID: 26722841 PMCID: PMC4710793 DOI: 10.1016/j.redox.2015.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 12/06/2015] [Indexed: 02/07/2023] Open
Abstract
Tyrosine phosphorylation-dependent cell signaling represents a unique feature of multicellular organisms, and is important in regulation of cell differentiation and specialized cell functions. Multicellular organisms also contain a diverse family of NADPH oxidases (NOXs) that have been closely linked with tyrosine kinase-based cell signaling and regulate tyrosine phosphorylation via reversible oxidation of cysteine residues that are highly conserved within many proteins involved in this signaling pathway. An example of redox-regulated tyrosine kinase signaling involves the epidermal growth factor receptor (EGFR), a widely studied receptor system with diverse functions in normal cell biology as well as pathologies associated with oxidative stress such as cancer. The purpose of this Graphical Redox Review is to highlight recently emerged concepts with respect to NOX-dependent regulation of this important signaling pathway.
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Affiliation(s)
- David E Heppner
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, VT 05405, United States
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, VT 05405, United States.
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Hristova M, Habibovic A, Veith C, Janssen-Heininger YMW, Dixon AE, Geiszt M, van der Vliet A. Airway epithelial dual oxidase 1 mediates allergen-induced IL-33 secretion and activation of type 2 immune responses. J Allergy Clin Immunol 2015; 137:1545-1556.e11. [PMID: 26597162 DOI: 10.1016/j.jaci.2015.10.003] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/23/2015] [Accepted: 10/02/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND The IL-1 family member IL-33 plays a critical role in type 2 innate immune responses to allergens and is an important mediator of allergic asthma. The mechanisms by which allergens provoke epithelial IL-33 secretion are still poorly understood. OBJECTIVE Based on previous findings indicating involvement of the NADPH oxidase dual oxidase 1 (DUOX1) in epithelial wound responses, we explored the potential involvement of DUOX1 in allergen-induced IL-33 secretion and potential alterations in airways of asthmatic patients. METHODS Cultured human or murine airway epithelial cells or mice were subjected to acute challenge with Alternaria alternata or house dust mite, and secretion of IL-33 and activation of subsequent type 2 responses were determined. The role of DUOX1 was explored by using small interfering RNA approaches and DUOX1-deficient mice. Cultured nasal epithelial cells from healthy subjects or asthmatic patients were evaluated for DUOX1 expression and allergen-induced responses. RESULTS In vitro or in vivo allergen challenge resulted in rapid airway epithelial IL-33 secretion, which depended critically on DUOX1-mediated activation of epithelial epidermal growth factor receptor and the protease calpain-2 through a redox-dependent mechanism involving cysteine oxidation within epidermal growth factor receptor and the tyrosine kinase Src. Primary nasal epithelial cells from patients with allergic asthma were found to express increased DUOX1 and IL-33 levels and demonstrated enhanced IL-33 secretion in response to allergen challenge compared with values seen in nasal epithelial cells from nonasthmatic subjects. CONCLUSION Our findings implicate epithelial DUOX1 as a pivotal mediator of IL-33-dependent activation of innate airway type 2 immune responses to common airborne allergens and indicate that enhanced DUOX1 expression and IL-33 secretion might present important contributing features of allergic asthma.
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Affiliation(s)
- Milena Hristova
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Carmen Veith
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | | | - Anne E Dixon
- Department of Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Miklos Geiszt
- Department of Physiology and Lendület Peroxidase Enzyme Research Group, Semmelweis University, Budapest, Hungary
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt.
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Panieri E, Santoro MM. ROS signaling and redox biology in endothelial cells. Cell Mol Life Sci 2015; 72:3281-303. [PMID: 25972278 PMCID: PMC11113497 DOI: 10.1007/s00018-015-1928-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/29/2015] [Accepted: 05/07/2015] [Indexed: 12/14/2022]
Abstract
The purpose of this review is to provide an overview of redox mechanisms, sources and antioxidants that control signaling events in ECs. In particular, we describe which molecules are involved in redox signaling and how they influence the relationship between ECs and other vascular component with regard to angiogenesis. Recent and new tools to investigate physiological ROS signaling will be also discussed. Such findings are providing an overview of the ROS biology relevant for endothelial cells in the context of normal and pathological angiogenic conditions.
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Affiliation(s)
- Emiliano Panieri
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Turin, Italy
| | - Massimo M. Santoro
- Laboratory of Endothelial Molecular Biology, Vesalius Research Center, VIB, 3000 Leuven, Belgium
- Laboratory of Endothelial Molecular Biology, Department of Oncology, University of Leuven, 3000 Leuven, Belgium
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Brown DI, Griendling KK. Regulation of signal transduction by reactive oxygen species in the cardiovascular system. Circ Res 2015; 116:531-49. [PMID: 25634975 DOI: 10.1161/circresaha.116.303584] [Citation(s) in RCA: 343] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Oxidative stress has long been implicated in cardiovascular disease, but more recently, the role of reactive oxygen species (ROS) in normal physiological signaling has been elucidated. Signaling pathways modulated by ROS are complex and compartmentalized, and we are only beginning to identify the molecular modifications of specific targets. Here, we review the current literature on ROS signaling in the cardiovascular system, focusing on the role of ROS in normal physiology and how dysregulation of signaling circuits contributes to cardiovascular diseases, including atherosclerosis, ischemia-reperfusion injury, cardiomyopathy, and heart failure. In particular, we consider how ROS modulate signaling pathways related to phenotypic modulation, migration and adhesion, contractility, proliferation and hypertrophy, angiogenesis, endoplasmic reticulum stress, apoptosis, and senescence. Understanding the specific targets of ROS may guide the development of the next generation of ROS-modifying therapies to reduce morbidity and mortality associated with oxidative stress.
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Affiliation(s)
- David I Brown
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA
| | - Kathy K Griendling
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA.
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Grancara S, Zonta F, Ohkubo S, Brunati AM, Agostinelli E, Toninello A. Pathophysiological implications of mitochondrial oxidative stress mediated by mitochondriotropic agents and polyamines: the role of tyrosine phosphorylation. Amino Acids 2015; 47:869-83. [PMID: 25792113 DOI: 10.1007/s00726-015-1964-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/11/2015] [Indexed: 12/23/2022]
Abstract
Mitochondria, once merely considered as the "powerhouse" of cells, as they generate more than 90 % of cellular ATP, are now known to play a central role in many metabolic processes, including oxidative stress and apoptosis. More than 40 known human diseases are the result of excessive production of reactive oxygen species (ROS), bioenergetic collapse and dysregulated apoptosis. Mitochondria are the main source of ROS in cells, due to the activity of the respiratory chain. In normal physiological conditions, ROS generation is limited by the anti-oxidant enzymatic systems in mitochondria. However, disregulation of the activity of these enzymes or interaction of respiratory complexes with mitochondriotropic agents may lead to a rise in ROS concentrations, resulting in oxidative stress, mitochondrial permeability transition (MPT) induction and triggering of the apoptotic pathway. ROS concentration is also increased by the activity of amine oxidases located inside and outside mitochondria, with oxidation of biogenic amines and polyamines. However, it should also be recalled that, depending on its concentration, the polyamine spermine can also protect against stress caused by ROS scavenging. In higher organisms, cell signaling pathways are the main regulators in energy production, since they act at the level of mitochondrial oxidative phosphorylation and participate in the induction of the MPT. Thus, respiratory complexes, ATP synthase and transition pore components are the targets of tyrosine kinases and phosphatases. Increased ROS may also regulate the tyrosine phosphorylation of target proteins by activating Src kinases or phosphatases, preventing or inducing a number of pathological states.
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Affiliation(s)
- Silvia Grancara
- Department of Biomedical Sciences, University of Padova, Viale U. Bassi 58B, 35131, Padua, Italy
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Mulens-Arias V, Rojas JM, Pérez-Yagüe S, Morales MP, Barber DF. Polyethylenimine-coated SPIONs trigger macrophage activation through TLR-4 signaling and ROS production and modulate podosome dynamics. Biomaterials 2015; 52:494-506. [PMID: 25818455 DOI: 10.1016/j.biomaterials.2015.02.068] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 02/10/2015] [Accepted: 02/15/2015] [Indexed: 11/29/2022]
Abstract
Polyethylenimine (PEI) is widely used as transfection agent in preclinical studies, both in vitro and in vivo. Due to their unique chemical and physical properties, SPIONs (superparamagnetic iron oxide nanoparticles) have been thoroughly studied as nanocarriers. PEI appears to activate different immune cells to an inflammatory response (M1/TH1), whereas the SPION-induced response seems to be context-dependent; the immunogenicity of the combination of these components has not been studied. Here we show that PEI-coated SPIONs (PMag) activate macrophages, as determined by measuring IL-12 secretion into culture medium and upregulation of several genes linked to the M1 phenotype. PMag-induced phosphorylation of p38 MAPK, p44/p42 MAPK and JNK, and upregulation of CD40, CD80, CD86 and I-A/I-E activation markers. PMag-induced macrophage activation depended partially on TLR4 (Toll-like receptor 4) and ROS (reactive oxygen species) signaling. Comparison of these responses with the LPS (lipopolysaccharide)-induced phenotype showed differences in gene expression profiling. PMag positively modulated podosome formation in murine macrophages, but hampered gelatin degradation by these cells. In conclusion, PMag induced an M1-like phenotype that was partially dependent on both TLR4 and ROS. These results show the adjuvant potential of PMag and suggest their use in vaccination schedules.
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Affiliation(s)
- Vladimir Mulens-Arias
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain; NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain
| | - José M Rojas
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain; NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain
| | - Sonia Pérez-Yagüe
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain; NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain
| | - María P Morales
- Department of Biomaterials and Bioinspired Materials, Instituto de Ciencia de Materiales de Madrid (ICMM)/CSIC, Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
| | - Domingo F Barber
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain; NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain.
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Marcos-Ramiro B, García-Weber D, Millán J. TNF-induced endothelial barrier disruption: beyond actin and Rho. Thromb Haemost 2014; 112:1088-102. [PMID: 25078148 DOI: 10.1160/th14-04-0299] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 06/16/2014] [Indexed: 11/05/2022]
Abstract
The decrease of endothelial barrier function is central to the long-term inflammatory response. A pathological alteration of the ability of endothelial cells to modulate the passage of cells and solutes across the vessel underlies the development of inflammatory diseases such as atherosclerosis and multiple sclerosis. The inflammatory cytokine tumour necrosis factor (TNF) mediates changes in the barrier properties of the endothelium. TNF activates different Rho GTPases, increases filamentous actin and remodels endothelial cell morphology. However, inhibition of actin-mediated remodelling is insufficient to prevent endothelial barrier disruption in response to TNF, suggesting that additional molecular mechanisms are involved. Here we discuss, first, the pivotal role of Rac-mediated generation of reactive oxygen species (ROS) to regulate the integrity of endothelial cell-cell junctions and, second, the ability of endothelial adhesion receptors such as ICAM-1, VCAM-1 and PECAM-1, involved in leukocyte transendothelial migration, to control endothelial permeability to small molecules, often through ROS generation. These adhesion receptors regulate endothelial barrier function in ways both dependent on and independent of their engagement by immune cells, and orchestrate the crosstalk between leukocyte transendothelial migration and endothelial permeability during inflammation.
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Affiliation(s)
| | | | - J Millán
- Jaime Millán, Centro de Biología Molecular Severo Ochoa, C/ Nicolás Cabrera 1, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain, Tel.: +34 911964713, Fax: +34 911964420, E-mail:
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Fiaschi T, Magherini F, Gamberi T, Lucchese G, Faggian G, Modesti A, Modesti PA. Hyperglycemia and angiotensin II cooperate to enhance collagen I deposition by cardiac fibroblasts through a ROS-STAT3-dependent mechanism. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:2603-10. [PMID: 25072659 DOI: 10.1016/j.bbamcr.2014.07.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 01/09/2023]
Abstract
Cardiac fibroblasts significantly contribute to diabetes-induced structural and functional changes in the myocardium. The objective of the present study was to determine the effects of high glucose (alone or supplemented with angiotensin II) in the activation of the JAK2/STAT3 pathway and its involvement in collagen I production by cardiac fibroblasts. We observed that the diabetic environment 1) enhanced tyrosine phosphorylation of JAK2 and STAT3; 2) induced nuclear localization of tyrosine phosphorylated STAT3 through a reactive oxygen species-mediated mechanism, with angiotensin II stimulation further enhancing STAT3 nuclear accumulation; and 3) stimulated collagen I production. The effects were inhibited by depletion of reactive oxygen species or silencing of STAT3 in high glucose alone or supplemented with exogenous angiotensin II. Combined, our data demonstrate that increased collagen I deposition in the setting of high glucose occurred through a reactive oxygen species- and STAT3-dependent mechanism. Our results reveal a novel role for STAT3 as a key signaling molecule of collagen I production in cardiac fibroblasts exposed to a diabetic environment.
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Affiliation(s)
- Tania Fiaschi
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Francesca Magherini
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Tania Gamberi
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Gianluca Lucchese
- Institute of Thoracic and Cardiovascular Surgery, University of Verona, Verona, Italy
| | - Giuseppe Faggian
- Institute of Thoracic and Cardiovascular Surgery, University of Verona, Verona, Italy
| | - Alessandra Modesti
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy.
| | - Pietro Amedeo Modesti
- Department of Clinical and Experimental Medicine, University of Florence, School of Medicine, Florence, Italy.
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Cifuentes-Pagano E, Meijles DN, Pagano PJ. The quest for selective nox inhibitors and therapeutics: challenges, triumphs and pitfalls. Antioxid Redox Signal 2014; 20:2741-54. [PMID: 24070014 PMCID: PMC4026400 DOI: 10.1089/ars.2013.5620] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
SIGNIFICANCE Numerous studies in animal models and human subjects corroborate that elevated levels of reactive oxygen species (ROS) play a pivotal role in the progression of multiple diseases. As a major source of ROS in many organ systems, the NADPH oxidase (Nox) has become a prime target for therapeutic development. RECENT ADVANCES In recent years, intense efforts have been dedicated to the development of pan- and isoform-specific Nox inhibitors as opposed to antioxidants that proved ineffective in clinical trials. Over the past decade, an array of compounds has been proposed in an attempt to fill this void. CRITICAL ISSUES Although many of these compounds have proven effective as Nox enzyme family inhibitors, isoform specificity has posed a formidable challenge to the scientific community. This review surveys the most prominent Nox inhibitors, and discusses potential isoform specificity, known mechanisms of action, and shortcomings. Some of these inhibitors hold substantial promise as targeted therapeutics. FUTURE DIRECTIONS Increased insight into the mechanisms of action and regulation of this family of enzymes as well as atomic structures of key Nox subunits are expected to give way to a broader spectrum of more potent, efficacious, and specific molecules. These lead molecules will assuredly serve as a basis for drug development aimed at treating a wide array of diseases associated with increased Nox activity.
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Affiliation(s)
- Eugenia Cifuentes-Pagano
- Department of Pharmacology and Chemical Biology, Vascular Medicine Institute, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
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Eble JA, de Rezende FF. Redox-relevant aspects of the extracellular matrix and its cellular contacts via integrins. Antioxid Redox Signal 2014; 20:1977-93. [PMID: 24040997 PMCID: PMC3993061 DOI: 10.1089/ars.2013.5294] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 08/29/2013] [Accepted: 09/16/2013] [Indexed: 12/30/2022]
Abstract
SIGNIFICANCE The extracellular matrix (ECM) fulfills essential functions in multicellular organisms. It provides the mechanical scaffold and environmental cues to cells. Upon cell attachment, the ECM signals into the cells. In this process, reactive oxygen species (ROS) are physiologically used as signalizing molecules. RECENT ADVANCES ECM attachment influences the ROS-production of cells. In turn, ROS affect the production, assembly and turnover of the ECM during wound healing and matrix remodeling. Pathological changes of ROS levels lead to excess ECM production and increased tissue contraction in fibrotic disorders and desmoplastic tumors. Integrins are cell adhesion molecules which mediate cell adhesion and force transmission between cells and the ECM. They have been identified as a target of redox-regulation by ROS. Cysteine-based redox-modifications, together with structural data, highlighted particular regions within integrin heterodimers that may be subject to redox-dependent conformational changes along with an alteration of integrin binding activity. CRITICAL ISSUES In a molecular model, a long-range disulfide-bridge within the integrin β-subunit and disulfide bridges within the genu and calf-2 domains of the integrin α-subunit may control the transition between the bent/inactive and upright/active conformation of the integrin ectodomain. These thiol-based intramolecular cross-linkages occur in the stalk domain of both integrin subunits, whereas the ligand-binding integrin headpiece is apparently unaffected by redox-regulation. FUTURE DIRECTIONS Redox-regulation of the integrin activation state may explain the effect of ROS in physiological processes. A deeper understanding of the underlying mechanism may open new prospects for the treatment of fibrotic disorders.
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Affiliation(s)
- Johannes A. Eble
- Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
- Excellence Cluster Cardio-Pulmonary System, Center for Molecular Medicine, Vascular Matrix Biology, Frankfurt University Hospital, Frankfurt/Main, Germany
| | - Flávia Figueiredo de Rezende
- Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
- Excellence Cluster Cardio-Pulmonary System, Center for Molecular Medicine, Vascular Matrix Biology, Frankfurt University Hospital, Frankfurt/Main, Germany
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