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Wang Y, Fan W, Zhang G, Zhao L, Li T, Zhang L, Hou T, Hong H, You Z, Sun Q, Li R, Liu C. LRRK2 is involved in heat exposure-induced acute lung injury and alveolar type II epithelial cell dysfunction. Environ Pollut 2024; 347:123643. [PMID: 38428793 DOI: 10.1016/j.envpol.2024.123643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/19/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
Heat exposure induces excessive hyperthermia associated with systemic inflammatory response that leads to multiple organ dysfunction including acute lung injury. However, how heat impairs the lung remains elusive so far. We aimed to explore the underlying mechanism by focusing on leucine-rich repeat kinase 2 (LRRK2), which was associated with lung homeostasis. Both in vivo and in vitro models were induced by heat exposure. Firstly, heat exposure exerted core temperature (Tc) disturbance, pulmonary dysfunction, atelectasis, inflammation, impaired energy metabolism, and reduced surfactant proteins in the lung of mice. In addition, decreased LRRK2 expression and increased heat shock proteins (HSPs) 70 were observed with heat exposure in both the lung of mice and alveolar type II epithelial cells (AT2). Furthermore, LRRK2 inhibition aggravated heat exposure-initiated Tc dysregulation, injury in the lung and AT2 cells, and enhanced HSP70 expression. In conclusion, LRRK2 is involved in heat-induced acute lung injury and AT2 cell dysfunction.
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Affiliation(s)
- Yindan Wang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Wenjun Fan
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Guoqing Zhang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Lisha Zhao
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Ting Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Lu Zhang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Tong Hou
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Huihua Hong
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Zhenqiang You
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Qinghua Sun
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Ran Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China
| | - Cuiqing Liu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China; International Science and Technology Cooperation Base of Air Pollution and Health, Hangzhou, China.
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2
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Gao JH, He AD, Liu LM, Zhou YJ, Guo YW, Lu M, Zeng XB, Gong X, Lu YJ, Liang HF, Zhang BX, Ma R, Zhang RY, Ming ZY. Direct interaction of platelet with tumor cell aggravates hepatocellular carcinoma metastasis by activating TLR4/ADAM10/CX3CL1 axis. Cancer Lett 2024; 585:216674. [PMID: 38280480 DOI: 10.1016/j.canlet.2024.216674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/15/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
Metastasis is the main culprit of cancer-related death and account for the poor prognosis of hepatocellular carcinoma. Although platelets have been shown to accelerate tumor cell metastasis, the exact mechanism remained to be fully understood. Here, we found that high blood platelet counts and increased tumor tissue ADAM10 expression indicated the poor prognosis of HCC patients. Meanwhile, blood platelet count has positive correlation with tumor tissue ADAM10 expression. In vitro, we revealed that platelet increased ADAM10 expression in tumor cell through TLR4/NF-κB signaling pathway. ADAM10 catalyzed the shedding of CX3CL1 which bound to CX3CR1 receptor, followed by inducing epithelial to mesenchymal transition and activating RhoA signaling in cancer cells. Moreover, knockdown HCC cell TLR4 (Tlr4) or inhibition of ADAM10 prevented platelet-increased tumor cell migration, invasion and endothelial permeability. In vivo, we further verified in mice lung metastatic model that platelet accelerated tumor metastasis via cancer cell TLR4/ADAM10/CX3CL1 axis. Overall, our study provides new insights into the underlying mechanism of platelet-induced HCC metastasis. Therefore, targeting the TLR4/ADAM10/CX3CL1 axis in cancer cells hold promise for the inhibition of platelet-promoted lung metastasis of HCC.
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Affiliation(s)
- Jia-Hui Gao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Ao-Di He
- Department of Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, China
| | - Lu-Man Liu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Ya-Jun Zhou
- Department of Pharmacy, Hubei Provincial Hospital of Traditional Chinese Medicine, Hubei Province Academy of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Ya-Wei Guo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Meng Lu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xiang-Bin Zeng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xue Gong
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Yong-Jie Lu
- Centre for Biomarkers and Therapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Hui-Fang Liang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bi-Xiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Ma
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Ru-Yi Zhang
- Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning, China
| | - Zhang-Yin Ming
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China; Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Wuhan, China; Tongji-Rongcheng Center for Biomedicine, Huazhong University of Science and Technology, Wuhan, China.
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Herb M. NADPH Oxidase 3: Beyond the Inner Ear. Antioxidants (Basel) 2024; 13:219. [PMID: 38397817 PMCID: PMC10886416 DOI: 10.3390/antiox13020219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Reactive oxygen species (ROS) were formerly known as mere byproducts of metabolism with damaging effects on cellular structures. The discovery and description of NADPH oxidases (Nox) as a whole enzyme family that only produce this harmful group of molecules was surprising. After intensive research, seven Nox isoforms were discovered, described and extensively studied. Among them, the NADPH oxidase 3 is the perhaps most underrated Nox isoform, since it was firstly discovered in the inner ear. This stigma of Nox3 as "being only expressed in the inner ear" was also used by me several times. Therefore, the question arose whether this sentence is still valid or even usable. To this end, this review solely focuses on Nox3 and summarizes its discovery, the structural components, the activating and regulating factors, the expression in cells, tissues and organs, as well as the beneficial and detrimental effects of Nox3-mediated ROS production on body functions. Furthermore, the involvement of Nox3-derived ROS in diseases progression and, accordingly, as a potential target for disease treatment, will be discussed.
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Affiliation(s)
- Marc Herb
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50935 Cologne, Germany;
- German Centre for Infection Research, Partner Site Bonn-Cologne, 50931 Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Aging-Associated Diseases (CECAD), 50931 Cologne, Germany
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4
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Zhou L, Fang L, Tamm M, Stolz D, Roth M. Extracellular Heat Shock Protein 70 Increases the Glucocorticoid Receptor and Dual-Specificity Phosphatase 1 via Toll-like Receptor 4 and Attenuates Inflammation in Airway Epithelial Cells. Int J Mol Sci 2023; 24:11700. [PMID: 37511459 PMCID: PMC10380817 DOI: 10.3390/ijms241411700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Heat shock protein 70 (HSP70) regulates the ligand binding of the glucocorticoid receptor (GR). In asthma patients, heat treatment increased both the GR expression and secretion of extracellular HSP70 (eHSP70) by bronchial epithelial cells (EC). The objective of this study was to assess the effects of eHSP70 on GR expression and the GR-dependent regulation of immune response in human bronchial ECs. Cells were treated with either eHSP70 or transfected with an expression vector for intracellular HSP70 (iHSP70). Ribonucleic acid (RNA) and protein levels were detected by reverse transcriptase-polymerase chain reaction (RT-PCR), Western blotting, and immunofluorescence. Interleukin (IL-6 and IL-8) secretion was determined by enzyme linked immunosorbent assay (ELISA). The overexpression of iHSP70 decreased, while eHSP70 increased GR expression. In addition, eHSP70 increased the expression of the GR target dual-specificity phosphatase 1 (DUSP-1). In doing so, eHSP70 reduced the tumor growth factor (TGF)-β1-dependent activation of extracellular signal-regulated kinase (Erk)-1/2 and cyclic AMP response element binding protein (CREB) and the secretion of IL-6 and IL-8. Blocking the GR or Toll-like receptor 4 (TLR4) counteracted all eHSP70-induced effects. This study demonstrates a novel anti-inflammatory effect of eHSP70 by the signaling cascade of TLR4-GR-DUSP1, which inhibits TGF-β1-activated pro-inflammatory ERK1/2-CREB signaling and cytokine secretion. The findings suggest that eHSP70 might present a novel non-steroidal therapeutic strategy to control airway inflammation in asthma.
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Affiliation(s)
- Liang Zhou
- Pulmonary Cell Research, Department Biomedicine & Clinic of Pneumology, University & University Hospital of Basel, 4031 Basel, Switzerland
| | - Lei Fang
- Pulmonary Cell Research, Department Biomedicine & Clinic of Pneumology, University & University Hospital of Basel, 4031 Basel, Switzerland
| | - Michael Tamm
- Pulmonary Cell Research, Department Biomedicine & Clinic of Pneumology, University & University Hospital of Basel, 4031 Basel, Switzerland
- Clinic of Pneumology and Pulmonary Cell Research, University Hospital of Basel, 4031 Basel, Switzerland
| | - Daiana Stolz
- Clinic of Pneumology and Pulmonary Cell Research, University Hospital of Basel, 4031 Basel, Switzerland
| | - Michael Roth
- Pulmonary Cell Research, Department Biomedicine & Clinic of Pneumology, University & University Hospital of Basel, 4031 Basel, Switzerland
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Begum R, Thota S, Abdulkadir A, Kaur G, Bagam P, Batra S. NADPH oxidase family proteins: signaling dynamics to disease management. Cell Mol Immunol 2022; 19:660-686. [PMID: 35585127 DOI: 10.1038/s41423-022-00858-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 03/12/2022] [Indexed: 12/16/2022] Open
Abstract
Reactive oxygen species (ROS) are pervasive signaling molecules in biological systems. In humans, a lack of ROS causes chronic and extreme bacterial infections, while uncontrolled release of these factors causes pathologies due to excessive inflammation. Professional phagocytes such as neutrophils (PMNs), eosinophils, monocytes, and macrophages use superoxide-generating NADPH oxidase (NOX) as part of their arsenal of antimicrobial mechanisms to produce high levels of ROS. NOX is a multisubunit enzyme complex composed of five essential subunits, two of which are localized in the membrane, while three are localized in the cytosol. In resting phagocytes, the oxidase complex is unassembled and inactive; however, it becomes activated after cytosolic components translocate to the membrane and are assembled into a functional oxidase. The NOX isoforms play a variety of roles in cellular differentiation, development, proliferation, apoptosis, cytoskeletal control, migration, and contraction. Recent studies have identified NOX as a major contributor to disease pathologies, resulting in a shift in focus on inhibiting the formation of potentially harmful free radicals. Therefore, a better understanding of the molecular mechanisms and the transduction pathways involved in NOX-mediated signaling is essential for the development of new therapeutic agents that minimize the hyperproduction of ROS. The current review provides a thorough overview of the various NOX enzymes and their roles in disease pathophysiology, highlights pharmacological strategies, and discusses the importance of computational modeling for future NOX-related studies.
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Affiliation(s)
- Rizwana Begum
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Shilpa Thota
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Abubakar Abdulkadir
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Gagandeep Kaur
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.,Department of Environmental Medicine, University of Rochester, School of Medicine and Dentistry, Rochester, NY, 14642, USA
| | - Prathyusha Bagam
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.,Division of Systems Biology, National Center for Toxicological Research, Jefferson, AR, 72079, USA
| | - Sanjay Batra
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.
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6
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Costa-Beber LC, Heck TG, Fiorin PBG, Ludwig MS. HSP70 as a biomarker of the thin threshold between benefit and injury due to physical exercise when exposed to air pollution. Cell Stress Chaperones 2021; 26:889-915. [PMID: 34677749 PMCID: PMC8578518 DOI: 10.1007/s12192-021-01241-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 12/15/2022] Open
Abstract
Physical exercise has acute and chronic effects on inflammatory balance, metabolic regulation, and redox status. Exercise-induced adaptations are mediated by enhanced 70-kDa heat shock protein (HSP70) levels and an improved heat shock response (HSR). Therefore, exercise could be useful against disease conditions [obesity, diabetes mellitus (DM), and exposure to atmospheric pollutants] marked by an impaired HSR. However, exercise performed by obese or diabetic subjects under pollution conditions might also be dangerous at certain intensities. Intensity correlates with an increase in HSP70 levels during physical exercise until a critical point at which the effort becomes harmful and impairs the HSR. Establishing a unique biomarker able to indicate the exercise intensity on metabolism and cellular fatigue is essential to ensure adequate and safe exercise recommendations for individuals with obesity or DM who require exercise to improve their metabolic status and live in polluted regions. In this review, we examined the available evidence supporting our hypothesis that HSP70 could serve as a biomarker for determining the optimal exercise intensity for subjects with obesity or diabetes when exposed to air pollution and establishing the fine threshold between anti-inflammatory and pro-inflammatory exercise effects.
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Affiliation(s)
- Lílian Corrêa Costa-Beber
- Research Group in Physiology, Postgraduate Program in Integral Attention to Health, Department of Life Sciences, Regional University of Northwestern State's Rio Grande do Sul (UNIJUI), Rua do Comercio, 3000 - Bairro Universitario -, Ijuí, RS, 98700-000, Brazil.
- Postgraduation Program in Integral Attention to Health (PPGAIS-UNIJUI/UNICRUZ), Ijuí, RS, Brazil.
| | - Thiago Gomes Heck
- Research Group in Physiology, Postgraduate Program in Integral Attention to Health, Department of Life Sciences, Regional University of Northwestern State's Rio Grande do Sul (UNIJUI), Rua do Comercio, 3000 - Bairro Universitario -, Ijuí, RS, 98700-000, Brazil
- Postgraduation Program in Integral Attention to Health (PPGAIS-UNIJUI/UNICRUZ), Ijuí, RS, Brazil
| | - Pauline Brendler Goettems Fiorin
- Research Group in Physiology, Postgraduate Program in Integral Attention to Health, Department of Life Sciences, Regional University of Northwestern State's Rio Grande do Sul (UNIJUI), Rua do Comercio, 3000 - Bairro Universitario -, Ijuí, RS, 98700-000, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Postgraduate Program in Integral Attention to Health, Department of Life Sciences, Regional University of Northwestern State's Rio Grande do Sul (UNIJUI), Rua do Comercio, 3000 - Bairro Universitario -, Ijuí, RS, 98700-000, Brazil
- Postgraduation Program in Integral Attention to Health (PPGAIS-UNIJUI/UNICRUZ), Ijuí, RS, Brazil
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7
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Abstract
A link between oxidative stress and hypertension has been firmly established in multiple animal models of hypertension but remains elusive in humans. While initial studies focused on inactivation of nitric oxide by superoxide, our understanding of relevant reactive oxygen species (superoxide, hydrogen peroxide, and peroxynitrite) and how they modify complex signaling pathways to promote hypertension has expanded significantly. In this review, we summarize recent advances in delineating the primary and secondary sources of reactive oxygen species (nicotinamide adenine dinucleotide phosphate oxidases, uncoupled endothelial nitric oxide synthase, endoplasmic reticulum, and mitochondria), the posttranslational oxidative modifications they induce on protein targets important for redox signaling, their interplay with endogenous antioxidant systems, and the role of inflammasome activation and endoplasmic reticular stress in the development of hypertension. We highlight how oxidative stress in different organ systems contributes to hypertension, describe new animal models that have clarified the importance of specific proteins, and discuss clinical studies that shed light on how these processes and pathways are altered in human hypertension. Finally, we focus on the promise of redox proteomics and systems biology to help us fully understand the relationship between ROS and hypertension and their potential for designing and evaluating novel antihypertensive therapies.
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Affiliation(s)
- Kathy K Griendling
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, USA
| | - Livia L Camargo
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow
| | - Francisco Rios
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow
| | - Rhéure Alves-Lopes
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow
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8
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Zhao J, Wang T, Lv Q, Zhou N. Expression of heat shock protein 70 and Annexin A1 in serum of patients with acutely severe traumatic brain injury. Exp Ther Med 2019; 19:1896-1902. [PMID: 32104246 PMCID: PMC7026958 DOI: 10.3892/etm.2019.8357] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 10/24/2019] [Indexed: 12/21/2022] Open
Abstract
Trends of early expression levels of heat shock protein 70 (Hsp70) and Annexin A1 (ANXA1) in serum of patients with acutely severe traumatic brain injury and the effects on clinical prognosis were investigated. Eighty-four patients with severe traumatic brain injury admitted to Binzhou Center Hospital from June 2014 to July 2017 were selected as the experimental group. Glasgow coma scale and acute physiology and chronic health evaluation II (APACHE II) score were obtained after admission. A further 75 healthy subjects were selected as the control group. Serum expression of Hsp70 and ANXA1 in the two groups was detected by enzyme-linked immunosorbent assay on the 1st, 2nd, 3rd and 4th day after admission. The receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of Hsp70 and ANXA1 for the death of patients with acutely severe traumatic brain injury. Compared with the control group, expression of Hsp70 in the experimental group was significantly increased on the 1st, 2nd, 3rd and 4th day after admission (P<0.05), while expression of ANXA1 was significantly decreased (P<0.05). Expression levels of serum Hsp70 in the experimental group reached the peak on the 3rd day after admission, and the difference was statistically significant compared with the 1st, 2nd and 4th day (P<0.05). Expression of ANXA1 was the lowest on the 3rd day, and the difference was statistically significant compared with the 1st, 2nd and 4th day (P<0.05). The ROC curve analysis showed that the area under the curve of serum Hsp70 and ANXA1 was, respectively, 0.721 (95% CI: 0.611–0.829) and 0.684 (95% CI: 0.569–0.799). In conclusion, Hsp70 and ANXA1 may be involved in the occurrence and progression of acutely severe traumatic brain injury. The detection of serum Hsp70 and ANXA1 has certain diagnostic value for the death of patients with acutely severe traumatic brain injury.
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Affiliation(s)
- Junjing Zhao
- Department of Neurosurgery, Binzhou Center Hospital, Binzhou, Shandong 251700, P.R. China
| | - Tao Wang
- Department of Neurosurgery, Liaocheng Third People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Qiming Lv
- Department of Neurosurgery, Liaocheng Third People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Nan Zhou
- Department of Health Care, Jinan Central Hospital, Jinan, Shandong 250013, P.R. China
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9
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Kim S, Shan P, Hwangbo C, Zhang Y, Min J, Zhang X, Ardito T, Li A, Peng T, Sauler M, Lee PJ. Endothelial toll-like receptor 4 maintains lung integrity via epigenetic suppression of p16 INK4a. Aging Cell 2019; 18:e12914. [PMID: 30790400 PMCID: PMC6516428 DOI: 10.1111/acel.12914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 12/16/2018] [Accepted: 01/06/2019] [Indexed: 02/05/2023] Open
Abstract
We previously reported that the canonical innate immune receptor toll-like receptor 4 (TLR4) is critical in maintaining lung integrity. However, the molecular mechanisms via which TLR4 mediates its effect remained unclear. In the present study, we identified distinct contributions of lung endothelial cells (Ec) and epithelial cells TLR4 to pulmonary homeostasis using genetic-specific, lung- and cell-targeted in vivo methods. Emphysema was significantly prevented via the reconstituting of human TLR4 expression in the lung Ec of TLR4-/- mice. Lung Ec-silencing of TLR4 in wild-type mice induced emphysema, highlighting the specific and distinct role of Ec-expressed TLR4 in maintaining lung integrity. We also identified a previously unrecognized role of TLR4 in preventing expression of p16INK4a , a senescence-associated gene. Lung Ec-p16INK4a -silencing prevented TLR4-/- induced emphysema, revealing a new functional role for p16INK4a in lungs. TLR4 suppressed endogenous p16INK4a expression via HDAC2-mediated deacetylation of histone H4. These findings suggest a novel role for TLR4 in maintaining of lung homeostasis via epigenetic regulation of senescence-related gene expression.
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Affiliation(s)
- So‐Jin Kim
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Peiying Shan
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Cheol Hwangbo
- Division of Applied Life Science (BK21 Plus), PMBBRC, Division of Life Science, College of National SciencesGyeongsang National UniversityJinjuKorea
| | - Yi Zhang
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Jin‐Na Min
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Xuchen Zhang
- Department of PathologyYale University School of MedicineNew HavenConnecticut
| | - Taylor Ardito
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Alfred Li
- Bone Imaging Research CoreUniversity of California, San Francisco (UCSF)San FranciscoCalifornia
| | - Tien Peng
- Department of Medicine, Cardiovascular Research InstituteUCSFSan FranciscoCalifornia
| | - Maor Sauler
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
| | - Patty J. Lee
- Pulmonary, Critical Care and Sleep Medicine, Department of Internal MedicineYale University School of MedicineNew HavenConnecticut
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Zhang Y, Shan P, Srivastava A, Li Z, Lee PJ. Endothelial Stanniocalcin 1 Maintains Mitochondrial Bioenergetics and Prevents Oxidant-Induced Lung Injury via Toll-Like Receptor 4. Antioxid Redox Signal 2019; 30:1775-1796. [PMID: 30187766 PMCID: PMC6479262 DOI: 10.1089/ars.2018.7514] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
AIMS Oxidant-induced endothelial injury plays a critical role in the pathogenesis of acute lung injury (ALI) and subsequent respiratory failure. Our previous studies revealed an endogenous antioxidant and protective pathway in lung endothelium mediated by heat shock protein 70 (Hsp70)-toll-like receptor 4 (TLR4) signaling. However, the downstream effector mechanisms remained unclear. Stanniocalcin 1 (STC1) has been reported to mediate antioxidant responses in tissues such as the lungs. However, regulators of STC1 expression as well as its physiological function in the lungs were unknown. We sought to elucidate the relationship between TLR4 and STC1 in hyperoxia-induced lung injury in vitro and in vivo and to define the functional role of STC1 expression in lung endothelium. RESULTS We identified significantly decreased STC1 expression in TLR4 knockout mouse lungs and primary lung endothelium isolated from TLR4 knockout mice. Overexpression of STC1 was associated with endothelial cytoprotection, whereas decreased or insufficient expression was associated with increased oxidant-induced injury and death. An Hsp70-TLR4-nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) signal mediates STC1 induction in the lungs and endothelial cells. We also demonstrated a previously unrecognized role for mitochondrial-associated STC1, via TLR4, in maintaining normal glycolysis, mitochondrial bioenergetics, and mitochondrial calcium levels. INNOVATION To date, a physiological role for STC1 in oxidant-induced ALI has not been identified. In addition, our studies show that STC1 is regulated by TLR4 and exerts lung and endothelial protection in response to sterile oxidant-induced lung injury. CONCLUSIONS Our studies reveal a novel TLR4-STC1-mediated mitochondrial pathway that has homeostatic as well as oxidant-induced cytoprotective functions in lung endothelium.
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Affiliation(s)
- Yi Zhang
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Peiying Shan
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Anup Srivastava
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut.,2 Division of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona
| | - Zhenyu Li
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut.,3 Intensive Care Unit, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Patty J Lee
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
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11
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Abstract
Dysregulated redox signaling in pulmonary vasculature is central to the development of pulmonary arterial hypertension (PAH) and lung injury. Modulators of reactive oxygen species (ROS) production and downstream signaling targets are critical for mediating the physiological or pathological effects of ROS. Understanding the complex interactions between the modulators and signaling targets of ROS is essential for developing novel strategies to prevent or attenuate lung pathologies. In this review, we discuss recent studies on the modulators and targets of ROS in pulmonary endothelial and smooth muscle cells, their cellular effects, and the disease conditions associated with dysregulated redox signaling.
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Affiliation(s)
- Zdravka Daneva
- Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
| | - Victor E Laubach
- Department of Surgery, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
| | - Swapnil K Sonkusare
- Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA.,Department of Molecular Physiology and Biological Physics, University of Virginia-School of Medicine, Charlottesville, VA, 22908, USA
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12
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Huetsch JC, Suresh K, Shimoda LA. Regulation of Smooth Muscle Cell Proliferation by NADPH Oxidases in Pulmonary Hypertension. Antioxidants (Basel) 2019; 8:antiox8030056. [PMID: 30841544 PMCID: PMC6466559 DOI: 10.3390/antiox8030056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/25/2019] [Accepted: 03/01/2019] [Indexed: 02/07/2023] Open
Abstract
Hyperproliferation of pulmonary arterial smooth muscle cells is a key component of vascular remodeling in the setting of pulmonary hypertension (PH). Numerous studies have explored factors governing the changes in smooth muscle cell phenotype that lead to the increased wall thickness, and have identified various potential candidates. A role for reactive oxygen species (ROS) has been well documented in PH. ROS can be generated from a variety of sources, including mitochondria, uncoupled nitric oxide synthase, xanthine oxidase, and reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. In this article, we will review recent data supporting a role for ROS generated from NADPH oxidases in promoting pulmonary arterial smooth muscle cell proliferation during PH.
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Affiliation(s)
- John C Huetsch
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA.
| | - Karthik Suresh
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA.
| | - Larissa A Shimoda
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA.
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13
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Yin C, Li K, Yu Y, Huang H, Yu Y, Wang Z, Yan J, Pu Y, Li Z, Li D, Chen P, Chen F. Genome-wide association study identifies loci and candidate genes for non-idiopathic pulmonary hypertension in Eastern Chinese Han population. BMC Pulm Med 2018; 18:158. [PMID: 30290780 PMCID: PMC6173928 DOI: 10.1186/s12890-018-0719-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 09/06/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Pulmonary hypertension (PH) is a rare disease characterized by proliferation and occlusion of small pulmonary arterioles, which has been associated with a high mortality rate. The pathogenesis of PH is complex and incompletely understood, which includes both genetic and environmental factors that alter vascular structure and function. METHODS Thus we aimed to reveal the potential genetic etiology of PH by targeting 143 tag SNPs of 14 candidate genes. Totally 208 individuals from Chinese Han population were enrolled in the present study, including 109 non-idiopathic PH patients and 99 healthy controls. RESULTS The data revealed that 2 SNPs were associated with PH overall susceptibility at p < 3×10- 4 after Bonferroni correction. The top hit was rs6557421 (p = 4.5×10- 9), located within Nox3 gene on chromosome 6. Another SNP rs3744439 located in Tbx4 gene, also showed evidence of association with PH susceptibility (p = 1.2×10- 6). The distribution of genotype frequencies of rs6557421 and rs3744439 have dramatic differences between PH patients and controls. Individuals with rs6557421 TT genotype had a 10.72-fold/14.20-fold increased risk to develop PH when compared with GG or GG/GT carriers in codominant or recessive model, respectively (TT versus GG: 95%CI = 4.79-24.00; TT versus GG/GT: 95%CI = 6.65-30.33). As for rs3744439, AG genotype only occurred in healthy controls but has not been observed in PH patients. We further validated the result by using 26 different populations from five regions around the globe, including African (AFR), American (AMR), East Asian (EAS), European (EUR), and South Asian (SAS). In consistent with the present case-control study's results, significantly different genotype frequencies of the observed SNPs existed between PH patients and healthy individuals from all over the world. CONCLUSIONS The results suggested that rs6557421 variant in Nox3 and rs3744439 variant in Tbx4 might have potential effect on individual susceptibility to pulmonary hypertension, which could lead to therapeutic or diagnosis approaches in PH.
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Affiliation(s)
- Caiyong Yin
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.,MOE Key Laboratory of Contemporary Anthropology, Department of Anthropology and Human Genetics, School of Life Sciences, Fudan University, Shanghai, 200438, People's Republic of China
| | - Kai Li
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Yanfang Yu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Huijie Huang
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Youjia Yu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212001, People's Republic of China
| | - Jinchuan Yan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212001, People's Republic of China
| | - Yan Pu
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Zheng Li
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Ding Li
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Peng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
| | - Feng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China. .,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
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14
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Abstract
Hypoxia is one of the most common and severe challenges to the maintenance of homeostasis. Oxygen sensing is a property of all tissues, and the response to hypoxia is multidimensional involving complicated intracellular networks concerned with the transduction of hypoxia-induced responses. Of all the stresses to which the fetus and newborn infant are subjected, perhaps the most important and clinically relevant is that of hypoxia. Hypoxia during gestation impacts both the mother and fetal development through interactions with an individual's genetic traits acquired over multiple generations by natural selection and changes in gene expression patterns by altering the epigenetic code. Changes in the epigenome determine "genomic plasticity," i.e., the ability of genes to be differentially expressed according to environmental cues. The genomic plasticity defined by epigenomic mechanisms including DNA methylation, histone modifications, and noncoding RNAs during development is the mechanistic substrate for phenotypic programming that determines physiological response and risk for healthy or deleterious outcomes. This review explores the impact of gestational hypoxia on maternal health and fetal development, and epigenetic mechanisms of developmental plasticity with emphasis on the uteroplacental circulation, heart development, cerebral circulation, pulmonary development, and the hypothalamic-pituitary-adrenal axis and adipose tissue. The complex molecular and epigenetic interactions that may impact an individual's physiology and developmental programming of health and disease later in life are discussed.
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Affiliation(s)
- Charles A. Ducsay
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Ravi Goyal
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - William J. Pearce
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Sean Wilson
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Xiang-Qun Hu
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Lubo Zhang
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
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15
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Zeng H, Yang L, Zhang X, Chen Y, Cai J. Dioscin prevents LPS‑induced acute lung injury through inhibiting the TLR4/MyD88 signaling pathway via upregulation of HSP70. Mol Med Rep 2018; 17:6752-6758. [PMID: 29512786 DOI: 10.3892/mmr.2018.8667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 06/06/2017] [Indexed: 11/06/2022] Open
Abstract
Dioscin, as a type of important natural steroidal saponin, has widespread sources, primarily from the fenugreek plant, which is an important raw material in the production of synthetic steroid hormone drugs. Dioscin has anti‑tumor, anti‑inflammatory, antioxidant and other significant pharmacological effects with high medicinal value. The present work aimed to research the protective effect and underlying mechanisms by which dioscin prevents acute lung injury (ALI). Mice were injected with 5 mg/kg LPS to induce lung injury. Mice were treated with dioscin (20, 40 and 60 mg/kg) following LPS‑induced lung injury. Treatment with dioscin significantly decreased total number of alveolar macrophages, water content of lung and total protein concentration in ALI mice. Dioscin treatment significantly suppressed the ALI‑induced interleukin (IL)‑1B, IL‑6, tumor necrosis factor‑α, nuclear factor (NF)‑κB, myeloperoxidase, interferon‑γ and intercellular adhesion molecule‑1 activities in ALI rats. Following this, the authors identified that dioscin significantly also suppressed cyclooxygenase‑2, heat shock protein 70, Toll‑like receptor 4, MyD88 and NF‑κB protein expression in ALI rats. The results suggested that dioscin prevents LPS‑induced ALI through inhibiting the TLR4/MyD88 signaling pathway via upregulation of HSP70.
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Affiliation(s)
- Huiqing Zeng
- Department of Respiration Medicine, Zhongshan Hospital of Xiamen University, P.R. China
| | - Lijuan Yang
- Basic Medical College, Fujian Medical University, Xiamen, Fujian 361004, P.R. China
| | - Xiaobin Zhang
- Department of Respiration Medicine, Zhongshan Hospital of Xiamen University, P.R. China
| | - Yan Chen
- Department of Respiration Medicine, Zhongshan Hospital of Xiamen University, P.R. China
| | - Jianghang Cai
- Department of Respiration Medicine, Zhongshan Hospital of Xiamen University, P.R. China
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16
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Jian J, Tian QY, Hettinghouse A, Zhao S, Liu H, Wei J, Grunig G, Zhang W, Setchell KDR, Sun Y, Overkleeft HS, Chan GL, Liu CJ. Progranulin Recruits HSP70 to β-Glucocerebrosidase and Is Therapeutic Against Gaucher Disease. EBioMedicine 2016; 13:212-224. [PMID: 27789271 PMCID: PMC5264254 DOI: 10.1016/j.ebiom.2016.10.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/03/2016] [Accepted: 10/07/2016] [Indexed: 12/24/2022] Open
Abstract
Gaucher disease (GD), the most common lysosomal storage disease, is caused by mutations in GBA1 encoding of β-glucocerebrosidase (GCase). Recently it was reported that progranulin (PGRN) insufficiency and deficiency associated with GD in human and mice, respectively. However the underlying mechanisms remain unknown. Here we report that PGRN binds directly to GCase and its deficiency results in aggregation of GCase and its receptor LIMP2. Mass spectrometry approaches identified HSP70 as a GCase/LIMP2 complex-associated protein upon stress, with PGRN as an indispensable adaptor. Additionally, 98 amino acids of C-terminal PGRN, referred to as Pcgin, are required and sufficient for the binding to GCase and HSP70. Pcgin effectively ameliorates the disease phenotype in GD patient fibroblasts and animal models. These findings not only demonstrate that PGRN is a co-chaperone of HSP70 and plays an important role in GCase lysosomal localization, but may also provide new therapeutic interventions for lysosomal storage diseases, in particular GD.
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Affiliation(s)
- Jinlong Jian
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Qing-Yun Tian
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Aubryanna Hettinghouse
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Shuai Zhao
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Helen Liu
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Jianlu Wei
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States
| | - Gabriele Grunig
- Department of Environmental Medicine, New York University School of Medicine, 57 Old Forge Road, Tuxedo, NY 10987, United States
| | - Wujuan Zhang
- Division of Pathology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, United States
| | - Kenneth D R Setchell
- Division of Pathology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, United States
| | - Ying Sun
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States
| | - Herman S Overkleeft
- Leiden Institute of Chemistry, Leiden University, Gorlaeus Laboratories, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Gerald L Chan
- Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, MA 02115, United States
| | - Chuan-Ju Liu
- Department of Orthopaedic Surgery, New York University School of Medicine, New York, NY 10003, United States; Department of Cell Biology, New York University School of Medicine, New York, NY 10016, United States.
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