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Wei X, Zheng Z, Feng Z, Zheng L, Tao S, Zheng B, Huang B, Zhang X, Liu J, Chen Y, Zong W, Shan Z, Fan S, Chen J, Zhao F. Sigma-1 receptor attenuates osteoclastogenesis by promoting ER-associated degradation of SERCA2. EMBO Mol Med 2022; 14:e15373. [PMID: 35611810 PMCID: PMC9260208 DOI: 10.15252/emmm.202115373] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/04/2022] Open
Abstract
Sigma-1 receptor (Sigmar1) is a specific chaperone located in the mitochondria-associated endoplasmic reticulum membrane (MAM) and plays a role in several physiological processes. However, the role of Sigmar1 in bone homeostasis remains unknown. Here, we show that mice lacking Sigmar1 exhibited severe osteoporosis in an ovariectomized model. In contrast, overexpression of Sigmar1 locally alleviated the osteoporosis phenotype. Treatment with Sigmar1 agonists impaired both human and mice osteoclast formation in vitro. Mechanistically, SERCA2 was identified to interact with Sigmar1 based on the immunoprecipitation-mass spectrum (IP-MS) and co-immunoprecipitation (co-IP) assays, and Q615 of SERCA2 was confirmed to be the critical residue for their binding. Furthermore, Sigmar1 promoted SERCA2 degradation through Hrd1/Sel1L-dependent ER-associated degradation (ERAD). Ubiquitination of SERCA2 at K460 and K541 was responsible for its proteasomal degradation. Consequently, inhibition of SERCA2 impeded Sigmar1 deficiency enhanced osteoclastogenesis. Moreover, we found that dimemorfan, an FDA-approved Sigmar1 agonist, effectively rescued bone mass in various established bone-loss models. In conclusion, Sigmar1 is a negative regulator of osteoclastogenesis, and activation of Sigmar1 by dimemorfan may be a potential treatment for osteoporosis in clinical practice.
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Affiliation(s)
- Xiaoan Wei
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Zeyu Zheng
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Zhenhua Feng
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Lin Zheng
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Siyue Tao
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Bingjie Zheng
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Bao Huang
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Xuyang Zhang
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Junhui Liu
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Yilei Chen
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Wentian Zong
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Zhi Shan
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Shunwu Fan
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Jian Chen
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
| | - Fengdong Zhao
- Department of Orthopaedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and RegenerationTranslational Research of Zhejiang ProvinceHangzhouChina
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Jia J, Cheng J, Wang C, Zhen X. Sigma-1 Receptor-Modulated Neuroinflammation in Neurological Diseases. Front Cell Neurosci 2018; 12:314. [PMID: 30294261 PMCID: PMC6158303 DOI: 10.3389/fncel.2018.00314] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/29/2018] [Indexed: 02/02/2023] Open
Abstract
A large body of evidence indicates that sigma-1 receptors (Sig-1R) are important drug targets for a number of neuropsychiatric disorders. Sig-1Rs are enriched in central nervous system (CNS). In addition to neurons, both cerebral microglia and astrocytes express Sig-1Rs. Activation of Sig-1Rs is known to elicit potent neuroprotective effects and promote neuronal survival via multiple mechanisms, including promoting mitochondrial functions, decreasing oxidative stress and regulating neuroimmnological functions. In this review article, we focus on the emerging role of Sig-1Rs in regulating neuroinflammation and discuss the recent advances on the Sig-1R-modulating neuroinflammation in the pathophysiology and therapy of neurodegenerative disorders.
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Affiliation(s)
- Jia Jia
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Jian Cheng
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Cheng Wang
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
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Pu J, Tian G, Li B, Chen D, He J, Zheng P, Mao X, Yu J, Huang Z, Yu B. Trace Mineral Overload Induced Hepatic Oxidative Damage and Apoptosis in Pigs with Long-Term High-Level Dietary Mineral Exposure. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1841-1849. [PMID: 26829127 DOI: 10.1021/acs.jafc.5b05613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The present study investigated the effects of dietary trace mineral (Cu, Fe, Mn, and Zn) supplemental strategies on liver oxidative stress, endoplasmic reticulum stress, inflammation, and apoptosis of pigs. A total of 96 Duroc × Landrace × Yorkshire (DLY) piglets were randomly divided into four groups: considered or not considered the trace mineral concentrations in basal diet, and then added to the requirements proposed by NRC (2012) (+B/NR or -B/NR); and considered or not considered the basal diet's trace mineral concentrations and then added to the level of commercial trace mineral supplement (+B/PL or -B/PL). Pigs were fed from 6.5 to 115 kg. Compared with +B/NR diets, -B/PL diets increased serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) concentrations (P < 0.05), resulted in high levels of Fe, Cu, Mn, and Zn accumulation in liver (P < 0.05), as well as led to hepatic oxidative damage with the high concentrations of thiobarbituric acid reactive substance (TBARS), protein carbonylation (PCO), and 8-hydroxyguanine (8-OHG) in liver (P < 0.05). Furthermore, pigs fed -B/PL diets increased CCAAT/enhancer-binding protein homologous protein (CHOP), eukaryotic initiation factor-2α (eIF-2a), interleukin-6(IL-6), B-cell lymphoma leukemia-2-associated X protein (Bax), and caspase-3, caspase-8, and caspase-9 gene expression (P < 0.05) in liver. -B/PL diets also up-regulated hepatic mRNA expression of phosphoenolpyruvate carboxykinase1 (PEPCK1), glucose-6-phosphatase (G6PC), acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS) (P < 0.05) and down-regulated hormone-sensitive lipase (HSL) mRNA expression (P < 0.05) when compared with those of the + B/NR diet group. Taken together, the results indicated that long-term dietary mineral exposure with the commercial supplement level could cause harm to the structure and metabolic function of liver in pigs.
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Affiliation(s)
- Junning Pu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Gang Tian
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Bin Li
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Daiwen Chen
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Jun He
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Ping Zheng
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Xiangbing Mao
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Jie Yu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Zhiqing Huang
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Bing Yu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University , 46 Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
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Stoiber W, Obermayer A, Steinbacher P, Krautgartner WD. The Role of Reactive Oxygen Species (ROS) in the Formation of Extracellular Traps (ETs) in Humans. Biomolecules 2015; 5:702-23. [PMID: 25946076 PMCID: PMC4496692 DOI: 10.3390/biom5020702] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 04/22/2015] [Accepted: 04/24/2015] [Indexed: 12/17/2022] Open
Abstract
Extracellular traps (ETs) are reticulate structures of extracellular DNA associated with antimicrobial molecules. Their formation by phagocytes (mainly by neutrophils: NETs) has been identified as an essential element of vertebrate innate immune defense. However, as ETs are also toxic to host cells and potent triggers of autoimmunity, their role between pathogen defense and human pathogenesis is ambiguous, and they contribute to a variety of acute and chronic inflammatory diseases. Since the discovery of ET formation (ETosis) a decade ago, evidence has accumulated that most reaction cascades leading to ET release involve ROS. An important new facet was added when it became apparent that ETosis might be directly linked to, or be a variant of, the autophagy cell death pathway. The present review analyzes the evidence to date on the interplay between ROS, autophagy and ETosis, and highlights and discusses several further aspects of the ROS-ET relationship that are incompletely understood. These aspects include the role of NADPH oxidase-derived ROS, the molecular requirements of NADPH oxidase-dependent ETosis, the roles of NADPH oxidase subtypes, extracellular ROS and of ROS from sources other than NADPH oxidase, and the present evidence for ROS-independent ETosis. We conclude that ROS interact with ETosis in a multidimensional manner, with influence on whether ETosis shows beneficial or detrimental effects.
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Affiliation(s)
- Walter Stoiber
- Biomedical Ultrastructure Research Group, Department of Cell Biology, University of Salzburg, Hellbrunnerstrasse 34, Salzburg A-5020, Austria.
| | - Astrid Obermayer
- Biomedical Ultrastructure Research Group, Department of Cell Biology, University of Salzburg, Hellbrunnerstrasse 34, Salzburg A-5020, Austria.
| | - Peter Steinbacher
- Biomedical Ultrastructure Research Group, Department of Cell Biology, University of Salzburg, Hellbrunnerstrasse 34, Salzburg A-5020, Austria.
| | - Wolf-Dietrich Krautgartner
- Biomedical Ultrastructure Research Group, Department of Cell Biology, University of Salzburg, Hellbrunnerstrasse 34, Salzburg A-5020, Austria.
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Tan H, Peng J, Pei Q, Yang L, Chen J, Guo C, Hua Y, Yuan H, Yang G. Simple and sensitive LC-MS/MS-based assay for the quantification of dimemorfan in human plasma for use in a pharmacokinetic study. Biomed Chromatogr 2014; 29:647-53. [PMID: 25262813 DOI: 10.1002/bmc.3325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/17/2014] [Accepted: 08/12/2014] [Indexed: 11/09/2022]
Abstract
Dimemorfan phosphate has been widely used for 40 years throughout the world for the treatment of coughs. This is the first report on the use of an LC-MS/MS-based assay for the determination of dimemorfan in human plasma using estazolam as an internal standard after one-step protein precipitation with acetonitrile. Chromatographic separation was achieved on a Phenomenex Luna C18 column (3 µm, 50 × 2.0 mm) using a fast gradient method, which involves water and methanol as the mobile phase (both containing 0.1% formic acid). Dimemorfan and estazolam were detected with proton adducts at m/z values of 255.8 → 155.1 and 295.0 → 267.0, respectively, in the selected reaction monitoring positive mode. The linear dynamic range of the assay was 0.04-5.00 ng/mL. The chromatographic run time for each plasma sample was <5 min. The method was proven to be accurate, precise, and repeatable. Finally, the developed method was successfully applied for the determination of dimemorfan in a pharmacokinetic study using healthy Chinese subjects.
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Affiliation(s)
- Hongyi Tan
- Center of Clinical Pharmacology, Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
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Song E, Fu J, Xia X, Su C, Song Y. Bazhen decoction protects against acetaminophen induced acute liver injury by inhibiting oxidative stress, inflammation and apoptosis in mice. PLoS One 2014; 9:e107405. [PMID: 25222049 PMCID: PMC4164650 DOI: 10.1371/journal.pone.0107405] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 08/17/2014] [Indexed: 02/04/2023] Open
Abstract
Bazhen decoction is a widely used traditional Chinese medicinal decoction, but the scientific validation of its therapeutic potential is lacking. The objective of this study was to investigate corresponding anti-oxidative, anti-inflammatory and anti-apoptosis activities of Bazhen decoction, using acetaminophen-treated mice as a model system. A total of 48 mice were divided into four groups. Group I, negative control, treated with vehicle only. Group II, fed with 500 mg/kg/day Bazhen decoction for 10 continuous days. Group III, received a single dose of 900 mg/kg acetaminophen. Group IV, fed with 500 mg/kg/day Bazhen decoction for 10 continuous days and a single dose of 900 mg/kg acetaminophen 30 min before last Bazhen decoction administration. Bazhen decoction administration significantly decrease acetaminophen-induced serum ALT, AST, ALP, LDH, TNF-α, IL-1β, ROS, TBARS and protein carbonyl group levels, as well as GSH depletion and loss of MMP. Bazhen decoction restore SOD, CAT, GR and GPx activities and depress the expression of pro-inflammatory factors, such as iNOS, COX-2, TNF-α, NF-κB, IL-1β and IL-6, respectively. Moreover, Bazhen decoction down-regulate acetaminophen-induced Bax/Bcl-2 ratio, caspase 3, caspase 8 and caspase 9. These results suggest the anti-oxidative, anti-inflammatory and anti-apoptosis properties of Bazhen decoction towards acetaminophen-induced liver injury in mice.
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Affiliation(s)
- Erqun Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Juanli Fu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Xiaomin Xia
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Chuanyang Su
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
| | - Yang Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, People's Republic of China
- * E-mail:
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Hwangbo M, Jung JY, Ki SH, Park SM, Jegal KH, Cho IJ, Lee JH, Kang SH, Park SD, Ku SK, Kim SC, Zhao RJ, Jee SY, Kim YW. U-Bang-Haequi Tang: A Herbal Prescription that Prevents Acute Inflammation through Inhibition of NF-κB-Mediated Inducible Nitric Oxide Synthase. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:542825. [PMID: 24959187 PMCID: PMC4052510 DOI: 10.1155/2014/542825] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 01/06/2023]
Abstract
Since antiquity, medical herbs have been prescribed for both treatment and preventative purposes. Herbal formulas are used to reduce toxicity as well as increase efficacy in traditional Korean medicine. U-bang-haequi tang (UBT) is a herbal prescription containing Arctii fructus and Forsythia suspensa as its main components and has treated many human diseases in traditional Korean medicine. This research investigated the effects of UBT against an acute phase of inflammation. For this, we measured induction of nitric oxide (NO) and related proteins in macrophage cell line stimulated by lipopolysaccharide (LPS). Further, paw swelling was measured in carrageenan-treated rats. Carrageenan significantly induced activation of inflammatory cells and increases in paw volume, whereas oral administration of 0.3 or 1 g/kg/day of UBT inhibited the acute inflammatory response. In RAW264.7 cells, UBT inhibited mRNA and protein expression levels of iNOS. UBT treatment also blocked elevation of NO production, nuclear translocation of NF-κB, phosphorylation of Iκ-Bα induced by LPS. Moreover, UBT treatment significantly blocked the phosphorylation of p38 and c-Jun NH2-terminal kinases by LPS. In conclusion, UBT prevented both acute inflammation in rats as well as LPS-induced NO and iNOS gene expression through inhibition of NF-κB in RAW264.7 cells.
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Affiliation(s)
- Min Hwangbo
- Department of Ophthalmology, Otolaryngology & Dermatology, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Ji Yun Jung
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Sung Hwan Ki
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Sang Mi Park
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Kyung Hwan Jegal
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Il Je Cho
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Ju-Hee Lee
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Seung Ho Kang
- Sunlin University, Pohang 791-712, Republic of Korea
| | - Sun-Dong Park
- College of Oriental Medicine, Dongguk University, Gyeongju 780-714, Republic of Korea
| | - Sae Kwang Ku
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Sang Chan Kim
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Rong Jie Zhao
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
- Department of Pharmacology, Mudanjiang Medical University, Mudanjiang 157011, China
| | - Seon Young Jee
- Department of Ophthalmology, Otolaryngology & Dermatology, Daegu Haany University, Daegu 706-828, Republic of Korea
| | - Young Woo Kim
- Medical Research Center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Republic of Korea
- College of Oriental Medicine, Dongguk University, Gyeongju 780-714, Republic of Korea
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Nam Y, Choi M, Hwang H, Lee MG, Kwon BM, Lee WH, Suk K. Natural Flavone Jaceosidin is a Neuroinflammation Inhibitor. Phytother Res 2012; 27:404-11. [DOI: 10.1002/ptr.4737] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 04/23/2012] [Accepted: 04/23/2012] [Indexed: 01/06/2023]
Affiliation(s)
- Youngpyo Nam
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Mijung Choi
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Heehong Hwang
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Maan-Gee Lee
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology; University of Science and Technology; Daejeon Korea
| | - Won-Ha Lee
- Department of Genetic Engineering, School of Life Sciences and Biotechnology; Kyungpook National University; Daegu Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
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Pseudomonas aeruginosa is associated with increased lung cytokines and asymmetric dimethylarginine compared with methicillin-resistant Staphylococcus aureus. Shock 2012; 36:466-70. [PMID: 21921834 DOI: 10.1097/shk.0b013e3182336b45] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The objective of the study was to investigate pulmonary responses to Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA) using ovine and mice models of sepsis with emphasis on lung cytokine expression, asymmetric dimethylarginine (ADMA) concentration, and the arginase pathway. Sheep were instilled with either MRSA, P. aeruginosa, or saline under deep anesthesia; mechanically ventilated; resuscitated with fluid; and killed after 24 h. Mice were instilled with either MRSA, P. aeruginosa, or saline under deep anesthesia and killed after 8 h. Lungs were assessed for ADMA concentration, arginase activity, oxidative stress, and cytokine expression, and plasma was assessed for nitrate/nitrite concentrations. The severity of lung injury was more pronounced in P. aeruginosa sepsis compared with MRSA. The significant changes in sheep lung function after P. aeruginosa sepsis were associated with significantly increased ADMA concentrations and arginase activity compared with MRSA. However, the plasma concentration of nitrites and nitrates were significantly increased in MRSA sepsis compared with P. aeruginosa sepsis. In the mice model, P. aeruginosa significantly increased lung cytokine expression (IL-1 and IL-13), protein oxidation, and arginase activity compared with MRSA. Our data suggest that the greater expression of cytokines and ADMA concentrations may be responsible for severity of acute lung injury in P. aeruginosa sepsis. The lack of arginase activity may explain the greater nitric oxide production in MRSA sepsis.
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Anethum graveloens Flower Extracts Inhibited a Lipopolysaccharide-Induced Inflammatory Response by Blocking iNOS Expression and NF-κB Activity in Macrophages. Biosci Biotechnol Biochem 2012; 76:1122-7. [DOI: 10.1271/bbb.110950] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Vijaya Bhaskar Reddy M, Shen YC, Ohkoshi E, Bastow KF, Qian K, Lee KH, Wu TS. Bis-chalcone analogues as potent NO production inhibitors and as cytotoxic agents. Eur J Med Chem 2011; 47:97-103. [PMID: 22115618 DOI: 10.1016/j.ejmech.2011.10.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 10/11/2011] [Accepted: 10/12/2011] [Indexed: 12/13/2022]
Abstract
Chalcones have a distinctive 1,3-diarylpropenone skeleton and exert numerous biological effects. Using a one-step Claisen-Schmidt condensation, we synthesized eleven bis-chalcones (3-13) and three acetyl chalcones (14-16) from substituted aldehydes and diacetylresorcinol. The compounds were tested for in vitro cytotoxic activity against four human cancer cell lines (A549, DU145, KB, and KB-VIN) and inhibition of NO production in lipopolysaccharide (LPS)-activated microglial cells. Among them, four compounds (3, 5, 6, and 13) showed significant cytotoxic activity with EC(50) values ranging from 1.57 to 5.14 μM, and seven compounds (3, 5-8, 10, and 13) displayed potent anti-inflammatory activity by inhibiting NO production with IC(50) values ranging from 0.95 to 8.65 μM. A mechanism of action study of active compounds 6 and 7 discovered that these compounds down-regulated iNOS expression by inhibiting p65 NF-κB activation/nuclear translocation due to prevention of IκBα degradation. Structure-activity relationship (SAR) findings are also discussed.
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12
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Mechanisms of chloride in cardiomyocyte anoxia-reoxygenation injury: the involvement of oxidative stress and NF-kappaB activation. Mol Cell Biochem 2011; 355:201-9. [DOI: 10.1007/s11010-011-0855-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 04/20/2011] [Indexed: 10/18/2022]
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13
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Reddy MVB, Shen YC, Yang JS, Hwang TL, Bastow KF, Qian K, Lee KH, Wu TS. New bichalcone analogs as NF-κB inhibitors and as cytotoxic agents inducing Fas/CD95-dependent apoptosis. Bioorg Med Chem 2011; 19:1895-906. [PMID: 21377368 DOI: 10.1016/j.bmc.2011.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 01/28/2011] [Accepted: 02/01/2011] [Indexed: 10/18/2022]
Abstract
A series of novel bichalcone analogs were synthesized and evaluated in lipopolysaccharide (LPS)-activated microglial cells as inhibitors of nitric oxide (NO) and for in vitro anticancer activity using a limited panel of four human cancer cell lines. All analogs inhibited NO production. Compounds 4 and 11 exhibited optimal activity with IC(50) values of 0.3 and 0.5 μM, respectively, and were at least 38-fold better than the positive control. A mechanism of action study showed that both compounds significantly blocked the nuclear translocation of NF-κB p65 and up-regulation of iNOS at 1.0 μM. Compound 4 and three other analogs (3, 20, and 23) exerted significant in vitro anticancer activity GI(50) values ranging from 0.70 to 13.10 μM. A mode of action study using HT-29 colon cancer cells showed that 23 acts by inducing apoptosis signaling.
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Shin EJ, Bach JH, Lee SY, Kim JM, Lee J, Hong JS, Nabeshima T, Kim HC. Neuropsychotoxic and Neuroprotective Potentials of Dextromethorphan and Its Analogs. J Pharmacol Sci 2011; 116:137-48. [DOI: 10.1254/jphs.11r02cr] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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15
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Impellizzeri D, Esposito E, Mazzon E, Paterniti I, Di Paola R, Bramanti P, Cuzzocrea S. Effect of apocynin, a NADPH oxidase inhibitor, on acute lung inflammation. Biochem Pharmacol 2010; 81:636-48. [PMID: 21147071 DOI: 10.1016/j.bcp.2010.12.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 12/02/2010] [Accepted: 12/03/2010] [Indexed: 12/22/2022]
Abstract
NADPH-oxidase is an enzyme responsible for reactive oxygen species production (ROS) and inhibition of this enzyme represents an attractive therapeutic target for the treatment of many diseases. The aim of this study was to investigate the effects of apocynin, a NADPH-oxidase inhibitor, in a mouse model of carrageenan-induced pleurisy. Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by: infiltration of neutrophils in lung tissues and subsequent lipid peroxidation, increased production of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) and increased expression of intercellular adhesion molecule (ICAM-1) and platelet-adhesion molecule (P-selectin). Furthermore, carrageenan induced the expression of nuclear factor-κB (NF-κB) inducible nitric oxide synthase (iNOS), nitrotyrosine, poly-ADP-ribosyl polymerase (PARP) as well as induced apoptosis (TUNEL staining, FAS-ligand expression, Bax and Bcl-2 expression) and mitogen-activated protein kinase (MAPK) activation in the lung tissues. Administration of apocynin, 30min after the challenge with carrageenan, caused a significant reduction of all the parameters of inflammation measured. Thus, based on these findings we propose that NADPH oxidase inhibitor such as apocynin may be useful in the treatment of various inflammatory diseases.
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Affiliation(s)
- Daniela Impellizzeri
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Via C. Valeria - Gazzi, 98100 Messina, Italy.
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16
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Shang L, Luo Z, Deng X, Wang M, Huang F, Feng D, Yue S. Expression of N-methyl-d-aspartate receptor and its effect on nitric oxide production of rat alveolar macrophages. Nitric Oxide 2010; 23:327-31. [DOI: 10.1016/j.niox.2010.09.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Revised: 09/16/2010] [Accepted: 09/17/2010] [Indexed: 01/04/2023]
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17
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Schmelzer C, Döring F. Identification of LPS-inducible genes downregulated by ubiquinone in human THP-1 monocytes. Biofactors 2010; 36:222-8. [PMID: 20533395 DOI: 10.1002/biof.93] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Coenzyme Q(10) (CoQ(10)) is an obligatory element in the respiratory chain and functions as a potent antioxidant of lipid membranes. More recently, anti-inflammatory effects as well as an impact of CoQ(10) on gene expression have been observed. To reveal putative effects of Q(10) on LPS-induced gene expression, whole genome expression analysis was performed in the monocytic cell line THP-1. Thousand one hundred twenty-nine and 710 probe sets have been identified to be significantly (P <or= 0.05) up and downregulated in LPS-treated cells when compared with controls, respectively. Text mining analysis of the top 50 LPS upregulated genes revealed a functional connection in the NFkappaB pathway and confirmed our applied in vitro stimulation model. Moreover, 33 LPS-sensitive genes have been identified to be significantly downregulated by Q(10)-treatment between a factor of 1.32 and 1.85. GeneOntology (GO) analysis revealed for the Q(10)-sensitve genes a primary involvement in protein metabolism (e.g., HERC1 and EPS15), cell proliferation (e.g., CCDC100 and SMURF1), and transcriptional processes (e.g., CNOT4 and STK4). Three genes were either related to NFkappaB transcription factor activity (ERC1), cytokinesis (DIAPH2), or modulation of oxidative stress (MSRA). In conclusion, our data provide evidence that Q(10) downregulates LPS-inducible genes in the monocytic cell line THP-1. Thus, the previously described effects of Q(10) on the reduction of proinflammatory mediators might be due to its antioxidant impact on gene expression.
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Affiliation(s)
- Constance Schmelzer
- Institute of Human Nutrition and Food Science, Molecular Prevention, Christian-Albrechts-University of Kiel, Germany
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18
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Meunier J, Hayashi T. Sigma-1 receptors regulate Bcl-2 expression by reactive oxygen species-dependent transcriptional regulation of nuclear factor kappaB. J Pharmacol Exp Ther 2010; 332:388-97. [PMID: 19855099 PMCID: PMC2812109 DOI: 10.1124/jpet.109.160960] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Accepted: 10/23/2009] [Indexed: 01/07/2023] Open
Abstract
The expression of Bcl-2, the major antiapoptotic member of the Bcl-2 family, is under complex controls of several factors, including reactive oxygen species (ROS). The sigma-1 receptor (Sig-1R), which was recently identified as a novel molecular chaperone at the mitochondria-associated endoplasmic reticulum membrane (MAM), has been shown to exert robust cellular protective actions. However, mechanisms underlying the antiapoptotic action of the Sig-1R remain to be clarified. Here, we found that the Sig-1R promotes cellular survival by regulating the Bcl-2 expression in Chinese hamster ovary cells. Although both Sig-1Rs and Bcl-2 are highly enriched at the MAM, Sig-1Rs neither associate physically with Bcl-2 nor regulate stability of Bcl-2 proteins. However, Sig-1Rs tonically regulate the expression of Bcl-2 proteins. Knockdown of Sig-1Rs down-regulates whereas overexpression of Sig-1Rs up-regulates bcl-2 mRNA, indicating that the Sig-1R transcriptionally regulates the expression of Bcl-2. The effect of Sig-1R small interfering RNA down-regulating Bcl-2 was blocked by ROS scavengers and by the inhibitor of the ROS-inducible transcription factor nuclear factor kappaB (NF-kappaB). Knockdown of Sig-1Rs up-regulates p105, the precursor of NF-kappaB, while concomitantly decreasing inhibitor of nuclear factor-kappaBalpha. Sig-1R knockdown also accelerates the conversion of p105 to the active form p50. Lastly, we showed that knockdown of Sig-1Rs potentiates H(2)O(2)-induced apoptosis; the action is blocked by either the NF-kappaB inhibitor oridonin or overexpression of Bcl-2. Thus, these findings suggest that Sig-1Rs promote cell survival, at least in part, by transcriptionally regulating Bcl-2 expression via the ROS/NF-kappaB pathway.
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Affiliation(s)
- Johann Meunier
- Cellular Pathobiology Section, Cellular Neurobiology Research Branch, IRP, NIDA, National Institutes of Health, DHHS, Triad Technology Building, Baltimore, MD, USA
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Farley KS, Wang L, Mehta S. Septic pulmonary microvascular endothelial cell injury: role of alveolar macrophage NADPH oxidase. Am J Physiol Lung Cell Mol Physiol 2008; 296:L480-8. [PMID: 19074558 DOI: 10.1152/ajplung.90201.2008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A significant role for alveolar macrophages (AM) in the pathophysiology of sepsis-induced acute lung injury (ALI) has been shown; however, the mechanisms behind AM-related lung injury remain relatively uncertain. We examined the role of AM nicotinamide adenine dinucleotide phosphate (NADPH) oxidase in pulmonary endothelial cell septic injury. NADPH oxidase is one of the major sources of cellular reactive oxygen species and has been implicated in endothelial injury in ALI. Pulmonary microvascular endothelial cells (PMVEC) monolayers were grown on Transwell inserts and incubated with wild-type and NADPH oxidase-deficient AM in the presence or absence of cytomix (equimolar TNF-alpha, IL-1beta, and IFN-gamma). Injury to the monolayers was assessed by trans-PMVEC Evans blue (EB)-labeled albumin flux. We found AM under cytomix stimulation caused significant EB-albumin flux across the PMVEC monolayers, and this effect was attenuated by the genetic deletion of AM NADPH oxidase. The pharmacological inhibition of AM NADPH oxidase with apocynin and PR-39 also significantly reduced AM-dependent PMVEC injury. In the AM-PMVEC cocultures, we also assessed PMVEC injury through measurement of protein oxidation and lipid peroxidation. AM were shown to cause a significant increase in these markers of PMVEC injury, which was also attenuated by the inhibition of NADPH oxidase or through the use of NADPH oxidase-deficient AM. PMVEC NADPH oxidase was shown not to significantly contribute to PMVEC injury in our studies. From our findings we have concluded that AM NADPH oxidase is crucial for the septic increase in pulmonary vascular permeability.
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Affiliation(s)
- K S Farley
- Division of Respirology, Centre for Critical Illness Research, Lawson Health Research Institute, University Of Western Ontario, London, Ontario, Canada
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