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Metzemaekers M, Gouwy M, Proost P. Neutrophil chemoattractant receptors in health and disease: double-edged swords. Cell Mol Immunol 2020; 17:433-450. [PMID: 32238918 PMCID: PMC7192912 DOI: 10.1038/s41423-020-0412-0] [Citation(s) in RCA: 238] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/05/2020] [Indexed: 02/08/2023] Open
Abstract
Neutrophils are frontline cells of the innate immune system. These effector leukocytes are equipped with intriguing antimicrobial machinery and consequently display high cytotoxic potential. Accurate neutrophil recruitment is essential to combat microbes and to restore homeostasis, for inflammation modulation and resolution, wound healing and tissue repair. After fulfilling the appropriate effector functions, however, dampening neutrophil activation and infiltration is crucial to prevent damage to the host. In humans, chemoattractant molecules can be categorized into four biochemical families, i.e., chemotactic lipids, formyl peptides, complement anaphylatoxins and chemokines. They are critically involved in the tight regulation of neutrophil bone marrow storage and egress and in spatial and temporal neutrophil trafficking between organs. Chemoattractants function by activating dedicated heptahelical G protein-coupled receptors (GPCRs). In addition, emerging evidence suggests an important role for atypical chemoattractant receptors (ACKRs) that do not couple to G proteins in fine-tuning neutrophil migratory and functional responses. The expression levels of chemoattractant receptors are dependent on the level of neutrophil maturation and state of activation, with a pivotal modulatory role for the (inflammatory) environment. Here, we provide an overview of chemoattractant receptors expressed by neutrophils in health and disease. Depending on the (patho)physiological context, specific chemoattractant receptors may be up- or downregulated on distinct neutrophil subsets with beneficial or detrimental consequences, thus opening new windows for the identification of disease biomarkers and potential drug targets.
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Affiliation(s)
- Mieke Metzemaekers
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium
| | - Mieke Gouwy
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium.
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Al-Sayed E, Ke TY, Hwang TL, Chen SR, Korinek M, Chen SL, Cheng YB. Cytotoxic and anti-inflammatory effects of lignans and diterpenes from Cupressus macrocarpa. Bioorg Med Chem Lett 2020; 30:127127. [PMID: 32223924 DOI: 10.1016/j.bmcl.2020.127127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 10/24/2022]
Abstract
Cupressus macrocarpa is a windbreak tree and is reported to have various cytotoxic effects. A natural product study on the leaves of C. macrocarpa has yielded ten secondary metabolites, including three new diterpenoids (1-3), four known diterpenoids (4-7), and three known lignans (8-10). The structures of all isolated compounds were elucidated via the interpretation of spectroscopic methods, especially 2D NMR and mass analyses. In the cytotoxic assays, compounds 1-3 and 7-10 showed inhibition effect against HepG2, MDA-MB-231, and A549 cells with IC50 values ranging from 0.004 to 19.9 μg/mL. Moreover, the anti-inflammatory assays revealed that (-)-matairesinol (8) had significant inhibitory activities on superoxide anion generation (IC50 = 2.7 ± 0.3 μM) and elastase release (IC50 = 6.6 ± 0.7 μM).
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Affiliation(s)
- Eman Al-Sayed
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt
| | - Tzu-Yi Ke
- Graduate Institute of Natural Products, Center for Natural Product Research and Development, College of Pharmacy, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 33302, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan
| | - Shu-Rong Chen
- Graduate Institute of Natural Products, Center for Natural Product Research and Development, College of Pharmacy, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Michal Korinek
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan; Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Shu-Li Chen
- Graduate Institute of Natural Products, Center for Natural Product Research and Development, College of Pharmacy, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yuan-Bin Cheng
- Graduate Institute of Natural Products, Center for Natural Product Research and Development, College of Pharmacy, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
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53
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Ebada SS, Al-Jawabri NA, Youssef FS, El-Kashef DH, Knedel TO, Albohy A, Korinek M, Hwang TL, Chen BH, Lin GH, Lin CY, Aldalaien SM, Disi AM, Janiak C, Proksch P. Anti-inflammatory, antiallergic and COVID-19 protease inhibitory activities of phytochemicals from the Jordanian hawksbeard: identification, structure–activity relationships, molecular modeling and impact on its folk medicinal uses. RSC Adv 2020; 10:38128-38141. [PMID: 35515148 PMCID: PMC9057237 DOI: 10.1039/d0ra04876c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/05/2020] [Indexed: 01/14/2023] Open
Abstract
On Wednesday 11th March, 2020, the world health organization (WHO) announced novel coronavirus (COVID-19, also called SARS-CoV-2) as a pandemic.
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Abstract
Anesthetics are widely used drugs administered in a multitude of clinical settings. Their impacts on various functions of the immune system have been studied but are still not fully understood. Neutrophil granulocytes are a critical first-line host defense mechanism against infections and contribute to the inflammatory phase of wound healing, but dysregulated neutrophil activation can also precipitate perioperative organ injury. A better understanding of the interactions between common anesthetics and neutrophils may reveal considerations toward optimizing treatment of our most vulnerable patients in the intensive care unit and in the perioperative setting.
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Affiliation(s)
- Angela Meier
- From the Department of Anesthesiology, Division of Critical Care, University of San Diego, San Diego, California
| | - Victor Nizet
- Department of Pediatrics, Division of Host-Microbe Systems & Therapeutics, Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California San Diego, San Diego, California
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Chen MS, Lu PK, Lin WC, Shin HC, Sie SR, Sheu SM. Lipofundin Mediates the Major Inhibition of Intravenous Propofol in IL-1β Secretion and Phagocytosis of Staphylococcus aureus-Infected Macrophages. Lipids 2019; 55:45-52. [PMID: 31838756 DOI: 10.1002/lipd.12207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/23/2019] [Accepted: 11/21/2019] [Indexed: 01/26/2023]
Abstract
Lipofundin is the solvent for propofol in the intravenous injection of Propofol-Lipuro® and is used in patients who need intravenous feeding to provide fatty acids and fat for energy. In addition to propofol, Lipofundin also affects the immune modulation of phagocytes. In a previous study, we reported that intravenous propofol effectively decreased Staphylococcus aureus-stimulated reactive oxygen species (ROS) levels, IL-1β secretion, and phagocytosis in RAW264.7 macrophages. It is important to separately assess the effects of pure propofol, Lipofundin, and Propofol-Lipuro. By using an S. aureus-infected RAW264.7 macrophage model, the levels of secreted IL-1β in cell supernatants were determined by ELISA. IL-1β mRNA in cell pellets was further analyzed by quantitative polymerase chain reaction (qPCR), and Western blotting was performed to detect pro-IL-1β synthesis. Total ROS levels were determined by a luminol chemiluminescence assay. Compared with pure propofol, treatment with clinically relevant concentrations of Propofol-Lipuro and Lipofundin obviously reduced IL-1β secretion (>85% inhibition), S. aureus-stimulated ROS production (50% inhibition), and phagocytosis (>60% inhibition) to similar levels. Treatment with pure propofol alone significantly decreased IL-1β mRNA levels and pro-IL-1β protein synthesis, and slightly inhibited phagocytosis. In contrast, treatment with Propofol-Lipuro did not influence IL-1β mRNA or pro-IL-1β protein expression, even though treatment with Lipofundin increased the levels of both IL-1β mRNA and its precursor protein. In conclusion, IL-1β secretion is regulated at the posttranslational level. Lipofundin mediated the major effect of Propofol-Lipuro on the inhibition of IL-1β secretion, ROS production, and phagocytosis in S. aureus-infected RAW264.7 cells.
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Affiliation(s)
- Ming-Shan Chen
- Department of Anesthesiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan.,Department of Biotechnology, Asia University, Taichung City, 41354, Taiwan
| | - Peh-Kuang Lu
- Department of Anesthesiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan
| | - Wen-Chun Lin
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan
| | - Hsun-Chang Shin
- Department of Anesthesiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan
| | - Shih-Ren Sie
- Department of Anesthesiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan
| | - Shew-Meei Sheu
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, 60002, Taiwan
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Tai SH, Kuo PC, Hung CC, Lin YH, Hwang TL, Lam SH, Kuo DH, Wu JB, Hung HY, Wu TS. Bioassay-guided purification of sesquiterpenoids from the fruiting bodies of Fomitopsis pinicola and their anti-inflammatory activity. RSC Adv 2019; 9:34184-34195. [PMID: 35530004 PMCID: PMC9073629 DOI: 10.1039/c9ra05899k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/12/2019] [Indexed: 11/21/2022] Open
Abstract
Twelve undescribed sesquiterpenoids, fomitopins A-L (1-12), were isolated via bioassay-guided purification from the bracket fungus Fomitopsis pinicola (Sw.) P. Karst, and this fungus have been reported to exhibit anti-microbial and anti-inflammatory activities. The structures of 1-12 were elucidated by spectroscopic and spectrometric analyses and their absolute configurations were further confirmed by ECD simulations. Ten isolated compounds were evaluated for their anti-inflammatory potential and compound 11 exhibited the most significant inhibition of superoxide anion generation and elastase release with IC50 values of 0.81 ± 0.15 and 0.74 ± 0.12 μM. These newly purified sesquiterpenoids could be potential candidates for further anti-inflammatory studies.
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Affiliation(s)
- Shih-Huang Tai
- Departments of Surgery and Anesthesiology, Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School Tainan 701 Taiwan
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University Tainan 70101 Taiwan +886-6-2740552 +886-6-2373149 +886-6-2747538 +886-6-2353535 ext. 6803
| | - Ching-Che Hung
- Department of Chemistry, National Cheng Kung University Tainan 70101 Taiwan
| | - Ying-Hsuan Lin
- Department of Environmental Sciences, University of California Riverside California 92521 USA
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Department of Anesthesiology, Chang Gung Memorial Hospital Taoyuan 333 Taiwan
| | - Sio Hong Lam
- School of Pharmacy, College of Medicine, National Cheng Kung University Tainan 70101 Taiwan +886-6-2740552 +886-6-2373149 +886-6-2747538 +886-6-2353535 ext. 6803
| | - Daih-Huang Kuo
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University Pingtung 907 Taiwan
| | - Jin-Bin Wu
- Jen-Li Biotechnology Company Taichung Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University Tainan 70101 Taiwan +886-6-2740552 +886-6-2373149 +886-6-2747538 +886-6-2353535 ext. 6803
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University Tainan 70101 Taiwan +886-6-2740552 +886-6-2373149 +886-6-2747538 +886-6-2353535 ext. 6803
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University Pingtung 907 Taiwan
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Propofol-based Total Intravenous Anesthesia Is Associated with Better Survival Than Desflurane Anesthesia in Colon Cancer Surgery. Anesthesiology 2019; 129:932-941. [PMID: 30028726 DOI: 10.1097/aln.0000000000002357] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
WHAT WE ALREADY KNOW ABOUT THIS TOPIC WHAT THIS ARTICLE TELLS US THAT IS NEW: BACKGROUND:: Previous research has shown different effects of anesthetics on cancer cell growth. Here, the authors investigated the association between type of anesthetic and patient survival after elective colon cancer surgery. METHODS A retrospective cohort study included patients who received elective colon cancer surgery between January 2005 and December 2014. Patients were grouped according to anesthesia received: propofol or desflurane. After exclusion of those who received combined propofol anesthesia with inhalation anesthesia or epidural anesthesia, survival curves were constructed from the date of surgery to death. After propensity matching, univariable and multivariable Cox regression models were used to compare hazard ratios for death. Subgroup analyses were performed for tumor-node-metastasis staging and postoperative metastasis. RESULTS A total of 706 patients (307 deaths, 43.5%) with desflurane anesthesia and 657 (88 deaths, 13.4%) with propofol anesthesia were eligible for analysis. After propensity matching, 579 patients remained in each group (189 deaths, 32.6%, in the desflurane group vs. 87, 15.0%, in the propofol group). In the matched analyses, the propofol-treated group had a better survival, irrespective of lower tumor-node-metastasis stage (hazard ratio, 0.22; 95% CI, 0.11 to 0.42; P < 0.001) or higher tumor-node-metastasis stage (hazard ratio, 0.42; 95% CI, 0.32 to 0.55; P < 0.001) and presence of metastases (hazard ratio, 0.67; 95% CI, 0.51 to 0.86; P = 0.002) or absence of metastases (hazard ratio, 0.08; 95% CI, 0.01 to 0.62; P = 0.016). Simple propensity score adjustment produced similar findings. CONCLUSIONS Propofol anesthesia for colon cancer surgery is associated with better survival irrespective of tumor-node-metastasis stage.
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58
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Tseng WR, Ahmed AF, Huang CY, Tsai YY, Tai CJ, Orfali RS, Hwang TL, Wang YH, Dai CF, Sheu JH. Bioactive Capnosanes and Cembranes from the Soft Coral Klyxum flaccidum. Mar Drugs 2019; 17:md17080461. [PMID: 31394844 PMCID: PMC6722650 DOI: 10.3390/md17080461] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 01/12/2023] Open
Abstract
Two new capnosane-based diterpenoids, flaccidenol A (1) and 7-epi-pavidolide D (2), two new cembranoids, flaccidodioxide (3) and flaccidodiol (4), and three known compounds 5 to 7 were characterized from the marine soft coral Klyxum flaccidum, collected off the coast of the island of Pratas. The structures of the new compounds were determined by extensive spectroscopic analyses, including 1D and 2D nuclear magnetic resonance (NMR) spectroscopy, and spectroscopic data comparison with related structures. The rare capnosane diterpenoids were isolated herein from the genus Klyxum for the first time. The cytotoxicity of compounds 1 to 7 against the proliferation of a limited panel of cancer cell lines was assayed. The isolated diterpenoids also exhibited anti-inflammatory activity through suppression of superoxide anion generation and elastase release in the N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLF/CB)-stimulated human neutrophils. Furthermore, 1 and 7 also exhibited cytotoxicity toward the tested cancer cells, and 7 could effectively inhibit elastase release. It is worth noting that the biological activities of 7 are reported for the first time in this paper.
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Affiliation(s)
- Wan-Ru Tseng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Atallah F Ahmed
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Yi-Ying Tsai
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chi-Jen Tai
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Raha S Orfali
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Yi-Hsuan Wang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chang-Feng Dai
- Institute of Oceanography, National Taiwan University, Taipei 112, Taiwan
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Frontier Center for Ocean Science and Technology, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
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Roaldsen M, Ciosek T, Elin Richardsen, Al-Saad S, Hiten Rh Patel, Aarsaether E. Isoflurane Increases Tolerance to Renal Ischemia Reperfusion Injury Compared to Propofol: An Experimental Study in Pigs. J INVEST SURG 2019; 34:359-365. [PMID: 31288581 DOI: 10.1080/08941939.2019.1637038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: To compare two clinically relevant anesthetic agents, i.e., isoflurane versus propofol with respect to protection of the kidney in a porcine renal ischemia reperfusion model. Materials and Methods: 14 hybrid pigs were randomized to anesthesia with either isoflurane or propofol prior to laparoscopic surgery. Following anesthesia, the left kidney hilum was clamped for 60 min and the right kidney removed. After 48 h of reperfusion, urine was sampled for analysis of neutrophil gelatinase-associated lipocalin (NGAL), albumin, and creatinine. The left kidney was harvested for histologic scoring of injury. Results: Histologic examination of renal injury revealed a statistically significant difference in favor of isoflurane on denuded basement membrane score (isoflurane group 1.58 ± 0.38 vs. propofol 2.42 ± 0.80, p = .026). Median (25-75 percentile) urinary albumin 3.4 g/L (2.25-7.48) vs. 8.9 g/L (3.73-13.8), (p = .041) and urinary albumin/creatinine ratio 1.17 (0.76-1.82) vs. 1.76 (1.63-5.99), (p = .026) were both significantly lower in the isoflurane group. Median (25-75 percentile) urinary NGAL was 167 (51-215) pg/ml in the isoflurane group compared with 362 (149-508) pg/ml in the propofol group (p = .093). Conclusion: Isoflurane increases tolerance to renal ischemia reperfusion injury compared to propofol in this model.
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Affiliation(s)
- Marius Roaldsen
- Department of Urology, University Hospital of North Norway, Tromso, Norway
| | - Timothy Ciosek
- Department of Clinical Medicine, UiT-Arctic University of Norway, Tromso, Norway
| | - Elin Richardsen
- Department of Clinical Pathology, University Hospital of North Norway, Tromso, Norway.,Department of Medical Biology, UiT-Arctic University of Norway, Tromso, Norway
| | - Samer Al-Saad
- Department of Clinical Pathology, University Hospital of North Norway, Tromso, Norway.,Department of Medical Biology, UiT-Arctic University of Norway, Tromso, Norway
| | - Hiten Rh Patel
- Department of Urology, University Hospital of North Norway, Tromso, Norway.,Department of Clinical Medicine, UiT-Arctic University of Norway, Tromso, Norway
| | - Erling Aarsaether
- Department of Urology, University Hospital of North Norway, Tromso, Norway.,Department of Clinical Medicine, UiT-Arctic University of Norway, Tromso, Norway
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Liu FC, Yu HP, Chen PJ, Yang HW, Chang SH, Tzeng CC, Cheng WJ, Chen YR, Chen YL, Hwang TL. A novel NOX2 inhibitor attenuates human neutrophil oxidative stress and ameliorates inflammatory arthritis in mice. Redox Biol 2019; 26:101273. [PMID: 31325723 PMCID: PMC6639650 DOI: 10.1016/j.redox.2019.101273] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/04/2019] [Accepted: 07/09/2019] [Indexed: 12/18/2022] Open
Abstract
Neutrophil infiltration plays a significant pathological role in inflammatory diseases. NADPH oxidase type 2 (NOX2) is a respiratory burst oxidase that generates large amounts of superoxide anion (O2•−) and subsequent other reactive oxygen species (ROS). NOX2 is an emerging therapeutic target for treating neutrophilic inflammatory diseases. Herein, we show that 4-[(4-(dimethylamino)butoxy)imino]-1-methyl-1H-benzo[f]indol-9(4H)-one (CYR5099) acts as a NOX2 inhibitor and exerts a protective effect against complete Freund's adjuvant (CFA)-induced inflammatory arthritis in mice. CYR5099 restricted the production of O2•− and ROS, but not the elastase release, in human neutrophils activated with various stimulators. The upstream signaling pathways of NOX2 were not inhibited by CYR5099. Significantly, CYR5099 inhibited NOX2 activity in activated human neutrophils and in reconstituted subcellular assays. In addition, CYR5099 reduced ROS production, neutrophil infiltration, and edema in CFA-induced arthritis in mice. Our findings suggest that CYR5099 is a NOX2 inhibitor and has therapeutic potential for treating neutrophil-dominant oxidative inflammatory disorders. CYR5099 is a NOX2 inhibitor. CYR5099 inhibits human neutrophil respiratory burst and adhesion. CYR5099 reduces ROS production, neutrophil infiltration, and edema on mouse arthritis. CYR5099 has potential to treat neutrophil-mediated inflammatory diseases.
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Affiliation(s)
- Fu-Chao Liu
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Huang-Ping Yu
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung, 433, Taiwan; Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Hsuan-Wu Yang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Shih-Hsin Chang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 333, Taiwan
| | - Cherng-Chyi Tzeng
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University-Hospital, Kaohsiung, 807, Taiwan
| | - Wei-Jen Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Department of Traditional Chinese Medicine, Center of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - You-Ren Chen
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University-Hospital, Kaohsiung, 807, Taiwan
| | - Yeh-Long Chen
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University-Hospital, Kaohsiung, 807, Taiwan.
| | - Tsong-Long Hwang
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan; Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, 333, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 243, Taiwan.
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Yao JW, Chi WC, Lee GH, Su JH, Hwang TL, Wu YJ, Su TR, Sheu JH, Sung PJ. 2-Acetoxybriaranes from Briareum violaceum. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kumar S, Gupta E, Kaushik S, Srivastava VK, Saxena J, Mehta S, Jyoti A. Quantification of NETs formation in neutrophil and its correlation with the severity of sepsis and organ dysfunction. Clin Chim Acta 2019; 495:606-610. [PMID: 31181192 DOI: 10.1016/j.cca.2019.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/06/2019] [Accepted: 06/06/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Previous study from this lab has discerned oxidative, nitrosative stress and their relationship with cytokines contributing to the severity of sepsis and organ dysfunction. Cytokines are known to induce neutrophil extracellular traps (NETs) formation via free radicals generation. Hyper-activation of neutrophil leads to the increased NETs formation or ineffective clearance of NETs would likely increase the risk of auto-antibody generation against NETs components and being partly responsible for the sepsis severity and organ dysfunction. The present study was undertaken to further assess the status of NETs formation and their correlation with severity of sepsis, with the cytokines and organ dysfunction. METHODS The level of NETs formation, DNA release, elastase release, and inflammatory cytokines was determined in 80 sepsis patients and 45 healthy volunteers. Their linearity with organ parameters and associations with sepsis severity were also assessed. RESULTS NETs formation experiment was carried out and it was significantly higher in sepsis (70%) compared to control (30%). NETs % were positively correlated with severity of sepsis and organ dysfunction. Pearson's correlation coefficient demonstrated a direct relation between NETs components and organ parameters with Sepsis severity scores. CONCLUSION NETs formation is significantly higher due to which it is contributing to the sepsis severity and organ failure.
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Affiliation(s)
- Sanni Kumar
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur 303002, India
| | - Ena Gupta
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur 303002, India
| | - Sanket Kaushik
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur 303002, India
| | - Vijay Kumar Srivastava
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur 303002, India
| | - Juhi Saxena
- Dr. B. Lal Institute of Biotechnology, 6-E, Malviya Industrial Area, Jaipur 302017, India
| | - Sudhir Mehta
- Department of General Medicine, SMS Medical College & Attached Hospitals, J.L.N. Marg, Jaipur 302004, India
| | - Anupam Jyoti
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur 303002, India.
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de Sousa GC, Cruz FF, Heil LB, Sobrinho CJS, Saddy F, Knibel FP, Pereira JB, Schultz MJ, Pelosi P, Gama de Abreu M, Silva PL, Rocco PRM. Intraoperative immunomodulatory effects of sevoflurane versus total intravenous anesthesia with propofol in bariatric surgery (the OBESITA trial): study protocol for a randomized controlled pilot trial. Trials 2019; 20:300. [PMID: 31138279 PMCID: PMC6540380 DOI: 10.1186/s13063-019-3399-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/06/2019] [Indexed: 02/06/2023] Open
Abstract
Background Obesity is associated with a chronic systemic inflammatory process. Volatile or intravenous anesthetic agents may modulate immune function, and may do so differentially in obesity. However, no study has evaluated whether these potential immunomodulatory effects differ according to type of anesthesia in obese patients undergoing laparoscopic bariatric surgery. Methods/design The OBESITA trial is a prospective, nonblinded, single-center, randomized, controlled clinical pilot trial. The trial will include 48 patients with a body mass index ≥ 35 kg/m2, scheduled for laparoscopic bariatric surgery using sleeve or a Roux-en-Y gastric bypass technique, who will be allocated 1:1 to undergo general inhalational anesthesia with sevoflurane or total intravenous anesthesia (TIVA) with propofol. The primary endpoint is the difference in plasma interleukin (IL)-6 levels when comparing the two anesthetic agents. Blood samples will be collected prior to anesthesia induction (baseline), immediately after anesthetic induction, and before endotracheal extubation. Levels of other proinflammatory and anti-inflammatory cytokines, neutrophil chemotaxis, macrophage differentiation, phagocytosis, and occurrence of intraoperative and postoperative complications will also be evaluated. Discussion To our knowledge, this is the first randomized clinical trial designed to compare the effects of two different anesthetics on immunomodulation in obese patients undergoing laparoscopic bariatric surgery. Our hypothesis is that anesthesia with sevoflurane will result in a weaker proinflammatory response compared to anesthesia with propofol, with lower circulating levels of IL-6 and other proinflammatory mediators, and increased macrophage differentiation into the M2 phenotype in adipose tissue. Trial registration Registro Brasileiro de Ensaios Clínicos, RBR-77kfj5. Registered on 25 July 2018. Electronic supplementary material The online version of this article (10.1186/s13063-019-3399-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Giselle Carvalho de Sousa
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil.,Department of Anesthesiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda Ferreira Cruz
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil
| | - Luciana Boavista Heil
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil
| | | | - Felipe Saddy
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil.,Institute D'Or of Research and Teaching, Rio de Janeiro, Brazil
| | | | | | - Marcus J Schultz
- Department of Intensive Care and Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Mahidol Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy.,Ospedale Policlinico San Martino, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Marcelo Gama de Abreu
- Pulmonary Engineering Group, Department of Anesthesiology and Intensive Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil
| | - Patricia Rieken Macedo Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G1-014, Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil.
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Lam SH, Jian SD, Hwang TL, Chen PJ, Hung HY, Kuo PC, Wu TS. A new dimeric protoberberine alkaloid and other compounds from the tubers of Tinospora dentata. Nat Prod Res 2019; 35:17-24. [PMID: 31135226 DOI: 10.1080/14786419.2019.1611809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new dimeric quaternary protoberberine alkaloid, bispalmatrubine (1), and thirteen known compounds (2-14) were purified from the tubers of Tinospora dentata. Their structures were determined by spectroscopic and spectrometric analytical methods. Among the isolates, eight compounds were examined for their in vitro anti-inflammatory potential and several tested alkaloids displayed moderate inhibitory effects of N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLP/CB)-induced superoxide anion generation and elastase release.
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Affiliation(s)
- Sio-Hong Lam
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shu-Duan Jian
- Chuang Song Zong Pharmaceutical Co., LTD, Kaohsiung City, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung, Taiwan
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Effects of propofol on the inflammatory response during robot-assisted laparoscopic radical prostatectomy: a prospective randomized controlled study. Sci Rep 2019; 9:5242. [PMID: 30918320 PMCID: PMC6437140 DOI: 10.1038/s41598-019-41708-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 02/21/2019] [Indexed: 12/20/2022] Open
Abstract
Robot-assisted laparoscopic radical prostatectomy (RALRP) is a minimally invasive procedure; however, some amount of surgical trauma that can trigger systemic inflammation remains. Moreover, pneumoperitoneum during RALRP induces ischemia–reperfusion injury (IRI). Propofol, an anesthetic, is known to have anti-inflammatory and antioxidant properties. In the present study, we compared the effects of propofol with those of desflurane on inflammation and IRI during RALRP via measurements of different biomarkers and evaluation of perioperative renal function. Fifty patients were randomized to receive either desflurane (n = 25) or propofol (n = 25) with remifentanil during RALRP. Serum levels of interleukin (IL)-6 (IL-6), tumor necrosis factor alpha, C-reactive protein, and nitric oxide were measured 10 min after anesthesia induction (T1), 100 min after carbon dioxide (CO2) insufflation (T2), and 10 min after CO2 deflation (T3). Perioperative urine outputs and the serum creatinine level at 24 h after surgery were also recorded. We found that IL-6 levels at T2 and T3 were higher than those at T1 in both groups, although the increases were significant attenuated only in the propofol group. The other parameters showed no differences among the three time points in both groups. The intraoperative urine output was significantly higher in the propofol group than in the desflurane group, while the creatinine level showed no significant changes in either group. Our findings suggest that propofol can not only attenuate the inflammatory response during and after pneumoperitoneum in patients undergoing RALRP but also prevent oliguria during pneumoperitoneum.
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67
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Briarenones A‒C, New Briarellin Diterpenoids from the Gorgonian Briareum violaceum. Mar Drugs 2019; 17:md17020120. [PMID: 30781569 PMCID: PMC6409734 DOI: 10.3390/md17020120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/01/2019] [Accepted: 02/12/2019] [Indexed: 01/18/2023] Open
Abstract
Three new eunicellin-derived diterpenoids of briarellin type, briarenones A‒C (1‒3), were isolated from a Formosan gorgonian Briareum violaceum. The chemical structures of the compounds were elucidated on the basis of extensive spectroscopic analyses, including two-dimensional (2D) NMR. The absolute configuration of 1 was further confirmed by a single crystal X-ray diffraction analysis. The in vitro cytotoxic and anti-inflammatory potentialities of the isolated metabolites were tested against the growth of a limited panel of cancer cell lines and against the production of superoxide anions and elastase release in N-formyl-methionyl-leucyl-phenyl-alanine and cytochalasin B (fMLF/CB)-stimulated human neutrophils, respectively.
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Lin YC, Chao CH, Ahmed AF, Chen YY, Hwang TL, Liu HY, Sheu JH. Withanolides and 26-Hydroxylated Derivatives with Anti-Inflammatory Property from Solanum Capsicoide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180225] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- You-Cheng Lin
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chih-Hua Chao
- School of Pharmacy, China Medical University, Taichung 404, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
| | - Atallah F. Ahmed
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yang-Yih Chen
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Ho-Yih Liu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Jyh-Horng Sheu
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Frontier Center for Ocean Science and Technology, National Sun Yat-sen University, Kaohsiung 804, Taiwan
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Propofol specifically reduces PMA-induced neutrophil extracellular trap formation through inhibition of p-ERK and HOCl. Life Sci 2019; 221:178-186. [PMID: 30771312 DOI: 10.1016/j.lfs.2019.02.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 12/21/2022]
Abstract
Neutrophil extracellular traps (NETs) are net-like chromatin fibers that can trap and kill microorganisms. Although several anti-inflammatory effects of intravenous anesthetics have been reported, it has not been investigated whether intravenous anesthetics influence NET formation. AIMS To compare the effects of four intravenous anesthetics (propofol, thiamylal sodium, midazolam, and ketamine) on phorbol myristate acetate (PMA)-induced NET formation and analyze the associated signaling pathways. MATERIALS AND METHODS PMA-stimulated NETs formed in the absence or presence of intravenous anesthetics were stained with SYTOX Green and then quantified. Inhibitors were applied to investigate the related mechanism, which was confirmed by western blotting, and ROS were detected. KEY FINDINGS The neutrophils incubated with propofol showed the lowest degree of NET formation compared with those incubated with the other intravenous anesthetics. Propofol significantly reduced the level of myeloperoxidase (MPO)-derived HOCl but not that of superoxide. Aminopyrine, an MPO inhibitor, markedly decreased the number of PMA-induced NETs, indicating the involvement of HOCl in the inhibitory effect of propofol on NET formation. According to western blotting results, the level of p-ERK was reduced by propofol during PMA-induced NET formation. The ERK inhibitor PD98059 decreased NET formation but did not inhibit PMA-induced HOCl generation, and aminopyrine did not reduce ERK phosphorylation. SIGNIFICANCE Through this study, we define a new anti-inflammatory effect of intravenous anesthetics. Of the four intravenous anesthetics tested, propofol was the most potent inhibitor of NET formation. Moreover, propofol resulted in a decrease in PMA-induced NET formation by two independent mechanisms: inhibition of HOCl and p-ERK.
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Li C, Lo I, Hsueh Y, Chung Y, Wang S, Korinek M, Tsai Y, Cheng Y, Hwang T, Wang CCC, Chang F, Wu Y. Epigenetic Manipulation Induces the Production of Coumarin‐Type Secondary Metabolite from
Arthrobotrys foliicola. Isr J Chem 2019. [DOI: 10.1002/ijch.201800162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Chi‐Ying Li
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- Department of Pharmacology and Pharmaceutical Sciences University of Southern CaliforniaSchool of Pharmacy Los Angeles CA 90089 USA
| | - I‐Wen Lo
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
| | - Yen‐Ping Hsueh
- Institute of Molecular BiologyAcademia Sinica Taipei 11529 Taiwan
| | - Yu‐Ming Chung
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
| | - Shih‐Wei Wang
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- Department of MedicineMackay Medical College New Taipei City 252 Taiwan
| | - Michal Korinek
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research CenterChang Gung University Taoyuan 33302 Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human EcologyChang Gung University of Science and Technology Taoyuan 33302 Taiwan
| | - Yi‐Hong Tsai
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
| | - Yuan‐Bin Cheng
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- Department of Medical ResearchKaohsiung Medical University Kaohsiung 807 Taiwan
| | - Tsong‐Long Hwang
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research CenterChang Gung University Taoyuan 33302 Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human EcologyChang Gung University of Science and Technology Taoyuan 33302 Taiwan
- Department of AnesthesiologyChang Gung Memorial Hospital Taoyuan 33305 Taiwan
| | - Clay C. C. Wang
- Department of Pharmacology and Pharmaceutical Sciences University of Southern CaliforniaSchool of Pharmacy Los Angeles CA 90089 USA
- Department of Chemistry, University of Southern CaliforniaCollege of Letters, Arts, and Sciences Los Angeles CA 90089 USA
| | - Fang‐Rong Chang
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- National Research Institute of Chinese Medicine Taipei 112 Taiwan
| | - Yang‐Chang Wu
- Graduate Institute of Natural ProductsCollege of Pharmacy Kaohsiung Medical University Kaohsiung 807 Taiwan
- Department of Medical ResearchKaohsiung Medical University Kaohsiung 807 Taiwan
- Research Center for Natural Products & Drug DevelopmentKaohsiung Medical University Kaohsiung 807 Taiwan
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Chen CY, Tsai YF, Huang WJ, Chang SH, Hwang TL. Propofol inhibits endogenous formyl peptide-induced neutrophil activation and alleviates lung injury. Free Radic Biol Med 2018; 129:372-382. [PMID: 30312762 DOI: 10.1016/j.freeradbiomed.2018.09.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/27/2018] [Accepted: 09/29/2018] [Indexed: 02/06/2023]
Abstract
Critically ill patients have a high risk of sepsis. Various studies have demonstrated that propofol has anti-inflammatory effects that may benefit critically ill patients who require anesthesia. However, the mechanism and therapeutic effect remain incompletely understood. Our previous data suggest that propofol can act as a formyl peptide receptor 1 (FPR1) antagonist. Here, we hypothesize that propofol mitigates sepsis-induced acute lung injury (ALI) by inhibiting mitochondria-derived N-formyl peptide-mediated neutrophil activation. Oxidative stress caused by activated neutrophils is involved in the pathogenesis of ALI. In human neutrophils, propofol competitively reduced the release of superoxide and associated reactive oxygen species induced by fMMYALF, a human mitochondria-derived N-formyl peptide, suggesting that propofol effectively suppresses neutrophilic oxidative stress. In addition, propofol significantly inhibited fMMYALF-induced elastase release, chemotaxis, calcium mobilization, and phosphorylation of protein kinase B and mitogen-activated protein kinases. These results indicate that propofol suppresses neutrophil activation by blocking the interaction between endogenous N-formyl peptide and its receptor, FPR1, thus inhibiting downstream signaling. Furthermore, propofol alleviated alveolar wall disruption, edematous changes, and neutrophil infiltration in lipopolysaccharide-induced ALI in mice. Noticeably, propofol improved the survival of sepsis mice. This study indicates that the anti-neutrophil effects of propofol may benefit critically ill septic patients.
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Affiliation(s)
- Chun-Yu Chen
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Yung-Fong Tsai
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Wei-Ju Huang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Shih-Hsin Chang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan.
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Nekhendzy V. Lights! Oxygen! Action! Hollywood anaesthesia is coming to a theatre near you. Br J Anaesth 2018; 118:489-491. [PMID: 28403425 DOI: 10.1093/bja/aex077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Thabet AA, Youssef FS, Korinek M, Chang FR, Wu YC, Chen BH, El-Shazly M, Singab ANB, Hwang TL. Study of the anti-allergic and anti-inflammatory activity of Brachychiton rupestris and Brachychiton discolor leaves (Malvaceae) using in vitro models. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:299. [PMID: 30413192 PMCID: PMC6230296 DOI: 10.1186/s12906-018-2359-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/24/2018] [Indexed: 12/23/2022]
Abstract
Background Brachychiton rupestris and Brachychiton discolor (Malvaceae) are ornamental trees native to Australia. Some members of Brachychiton and its highly related genus, Sterculia, are employed in traditional medicine for itching, dermatitis and other skin diseases. However, scientific studies on these two genera are scarce. Aiming to reveal the scientific basis of the folk medicinal use of these plants, the cytotoxicity, anti-inflammatory and anti-allergic activities of Brachychiton rupestris and Brachychiton discolor leaves extracts and fractions were evaluated. Also, phytochemical investigation of B. rupestris was performed to identify the compounds exerting the biological effect. Methods Extracts as well as fractions of Brachychiton rupestris and Brachychiton discolor were tested for their cytotoxicity versus hepatoma HepG2, lung A549, and breast MDA-MB-231 cancer cell lines. Assessment of the anti-allergic activity was done using degranulation assay in RBL-2H3 mast cells. Anti-inflammatory effect was tested by measuring the suppression of superoxide anion production as well as elastase release in fMLF/CB-induced human neutrophils. Phytochemical investigation of the n-hexane, dichloromethane and ethyl acetate fractions of B. rupestris was done using different chromatographic and spectroscopic techniques. Results The tested samples showed no cytotoxicity towards the tested cell lines. The nonpolar fractions of both B. rupestris and B. discolor showed potent anti-allergic potency by inhibiting the release of β-hexosaminidase. The dichloromethane fraction of both species exhibited the highest anti-inflammatory activity by suppressing superoxide anion generation and elastase release with IC50 values of 2.99 and 1.98 μg/mL, respectively for B. rupestris, and 0.78 and 1.57 μg/mL, respectively for B. discolor. Phytochemical investigation of various fractions of B. rupestris resulted in the isolation of β-amyrin acetate (1), β-sitosterol (2) and stigmasterol (3) from the n-hexane fraction. Scopoletin (4) and β-sitosterol-3-O-β-D-glucoside (5) were obtained from the dichloromethane fraction. Dihydrodehydrodiconiferyl alcohol 4-O-β-D-glucoside (6) and dihydrodehydrodiconiferyl alcohol 9-O-β-D-glucoside (7) were separated from the ethyl acetate fraction. Scopoletin (4) showed anti-allergic and anti-inflammatory activity. Conclusions It was concluded that the nonpolar fractions of both Brachychiton species exhibited anti-allergic and anti-inflammatory activities. Electronic supplementary material The online version of this article (10.1186/s12906-018-2359-6) contains supplementary material, which is available to authorized users.
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Chan YY, Wang CY, Hwang TL, Juang SH, Hung HY, Kuo PC, Chen PJ, Wu TS. The Constituents of the Stems of Cissus assamica and Their Bioactivities. Molecules 2018; 23:E2799. [PMID: 30373325 PMCID: PMC6278371 DOI: 10.3390/molecules23112799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 11/20/2022] Open
Abstract
Fifty-five compounds were isolated from the fresh stems of Cissus assamica, including 14 benzenoids, 11 triterpenes, nine steroids, five tocopherols, five chlorophylls, four flavonoids, two benzoquinones, two tannins, and three other compounds. Their structures were constructed by 1D and 2D nuclear magnetic resonance (NMR) and mass spectral data, and were also identified by a comparison of their spectral data with those reported in the literature. Among these isolates, 1,2-bis-(5--tocopheryl) ethane (51) was reported for the first time from natural sources. Some purified compounds were examined for their anti-inflammatory and anticancer bioactivities. The results indicated that betulinic acid (16) exhibited strong inhibition of superoxide anion generation with IC50 value of 0.2 ± 0.1 μM, while betulinic acid (16) and pheophytin-a (47) inhibited elastase release with IC50 value of 2.7 ± 0.3 and 5.3 ± 1.0 μM, respectively. In addition, betulinic acid (16) and epi-glut-5(6)-en-ol (18) exhibited potential cytotoxicity to non-small-cell lung carcinoma (NCI-H226) and colon cancer (HCT-116) cell lines with IC50 values in the range of 1.6 to 9.1 μM.
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Affiliation(s)
- Yu-Yi Chan
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Chiu-Yuan Wang
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Shin-Hun Juang
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung 433, Taiwan.
| | - Tian-Shung Wu
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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75
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Components from the Leaves and Twigs of Mangrove Lumnitzera racemosa with Anti-Angiogenic and Anti-Inflammatory Effects. Mar Drugs 2018; 16:md16110404. [PMID: 30366373 PMCID: PMC6267291 DOI: 10.3390/md16110404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/20/2018] [Accepted: 10/23/2018] [Indexed: 12/25/2022] Open
Abstract
One new neolignan, racelactone A (1), together with seven known compounds (2-8) were isolated from the methanolic extract of the leaves and twigs of Lumnitzera racemosa. The structure of racelactone A (1) was determined on the basis of the mass and NMR spectroscopic data interpretation. With respect to bioactivity, compound 1 displayed an anti-angiogenic effect by suppressing tube formation. Furthermore, compounds 1, 4, and 5 showed significant anti-inflammatory effects with IC50 values of 4.95 ± 0.89, 1.95 ± 0.40, and 2.57 ± 0.23 μM, respectively. The plausible biosynthesis pathway of racelactone A (1) was proposed.
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76
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Chemical Constituents from the Stems of Tinospora sinensis and Their Bioactivity. Molecules 2018; 23:molecules23102541. [PMID: 30301176 PMCID: PMC6222598 DOI: 10.3390/molecules23102541] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/01/2018] [Accepted: 10/02/2018] [Indexed: 11/23/2022] Open
Abstract
Fifty-seven compounds were purified from the stems of Tinospora sinensis, including three new compounds characterized as a lignan (1), a pyrrole alkaloid (11), and a benzenoid (17), respectively. Their structures were elucidated and established by various spectroscopic and spectrometric analytical methods. Among the isolates, fifteen compounds were examined for their anti-inflammatory potential in vitro. The results showed that several compounds displayed moderate inhibition of N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLP/CB)-induced superoxide anion generation and elastase release.
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77
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New Cembranoids and a Biscembranoid Peroxide from the Soft Coral Sarcophyton cherbonnieri. Mar Drugs 2018; 16:md16080276. [PMID: 30082637 PMCID: PMC6117711 DOI: 10.3390/md16080276] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/24/2018] [Accepted: 07/31/2018] [Indexed: 11/17/2022] Open
Abstract
Six new cembranoids, cherbonolides A−E (1–5) and bischerbolide peroxide (6), along with one known cembranoid, isosarcophine (7), were isolated from the Formosan soft coral Sarcophyton cherbonnieri. The structures of these compounds were elucidated by detailed spectroscopic analysis and chemical methods. Compound 6 was discovered to be the first example of a molecular skeleton formed from two cembranoids connected by a peroxide group. Compounds 1–7 were shown to have the ability of inhibiting the production of superoxide anions and elastase release in N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLF/CB)-induced human neutrophils.
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78
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Li X, Wang J, Song X, Wu H, Guo P, Jin Z, Wang C, Tang C, Wang Y, Zhang Z. Ketamine ameliorates ischemia-reperfusion injury after liver autotransplantation by suppressing activation of Kupffer cells in rats. Can J Physiol Pharmacol 2018; 96:886-892. [PMID: 29975111 DOI: 10.1139/cjpp-2018-0046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study aimed to investigate the protective effects of ketamine against hepatic ischemia-reperfusion (I/R) injury by suppressing activation of Kupffer cells (KCs) in rat liver autotransplantation. Male Sprague-Dawley rats were randomized into 3 groups (n = 10 each). Group I, the sham group, received saline. Group II received saline and underwent orthotopic liver autotransplantation (OLAT). Group III received 10 mg/kg ketamine and underwent OLAT. Blood samples were obtained at 3, 6, 12, and 24 h after I/R, and following ALT, AST, LDH, IL-6, TNF-α, IL-1β, and IL-10 in serum were detected. Model rats were sacrificed at the indicated time points and the graft liver tissues were evaluated histologically. KCs were isolated from rat liver tissues, and inflammatory products and proteins of NF-κB signaling pathway were detected using quantitative RT-PCR and Western blotting. Our results showed that ketamine significantly decreased ALT, AST, LDH, IL-6, TNF-α, and IL-1β levels and increased IL-10 level. Furthermore, ketamine alleviated the histopathology changes, by less KC infiltration and lower hepatocyte apoptosis. Moreover, activity of NF-κB signaling pathway in KCs was suppressed. In addition, production of pro- and anti-inflammatory factors is consistent with the results in tissues. Ketamine ameliorated I/R injury after liver transplantation by suppressing activation of KCs in rats.
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Affiliation(s)
- Xinyi Li
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Jin Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Xuemin Song
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Huisheng Wu
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Peipei Guo
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Zhao Jin
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Chengyao Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Chaoliang Tang
- b Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China; Department of Anesthesiology, The First Affiliated Hospital of USTC; Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Yanlin Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Zongze Zhang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
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79
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Zhao Q, Li HM, Chen XQ, Li RT, Liu D. Terpenoids from Tripterygium hypoglaucum and Their Anti-Inflammatory Activity. Chem Nat Compd 2018. [DOI: 10.1007/s10600-018-2381-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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80
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Yang SC, Chen PJ, Chang SH, Weng YT, Chang FR, Chang KY, Chen CY, Kao TI, Hwang TL. Luteolin attenuates neutrophilic oxidative stress and inflammatory arthritis by inhibiting Raf1 activity. Biochem Pharmacol 2018; 154:384-396. [PMID: 29883707 DOI: 10.1016/j.bcp.2018.06.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/04/2018] [Indexed: 11/30/2022]
Abstract
Neutrophils play a significant role in inflammatory tissue injury. Activated neutrophils produce reactive oxygen species (ROS), release proteases, and form neutrophil extracellular traps (NETs), significantly affecting the pathogenesis of inflammatory arthritis. We examined the therapeutic effects of luteolin, a flavone found in many plants, in neutrophilic inflammation and on acute inflammatory arthritis. Luteolin significantly inhibited superoxide anion generation, ROS production, and NET formation in human neutrophils. The increase in elastase release, CD11b expression, and chemotaxis was also inhibited by luteolin. Luteolin significantly suppressed phosphorylation of extracellular signal-regulated kinase (Erk) and mitogen-activated protein kinase kinase-1 (MEK-1), but not c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase (MAPK). Analysis of the molecular mechanism further revealed that luteolin acts as a Raf-1 inhibitor. In mice with complete Freund's adjuvant-induced arthritis, luteolin ameliorated neutrophil infiltration as well as the thickness of paw edema and ROS production. In conclusion, in addition to its known ROS scavenging effect, this study is the first to provide evidence that luteolin diminishes human neutrophil inflammatory responses by inhibiting Raf1-MEK-1-Erk. Our results focused on the importance of neutrophil activation in inflammatory tissue injury and offer opportunities for the development of luteolin's therapeutic potential to attenuate neutrophilic inflammatory diseases.
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Affiliation(s)
- Shun-Chin Yang
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei 112, Taiwan; Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Po-Jen Chen
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Cosmetic Science, Providence University, Taichung 433, Taiwan
| | - Shih-Hsin Chang
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Yu-Ting Weng
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Kuang-Yi Chang
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei 112, Taiwan
| | - Chun-Yu Chen
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
| | - Ting-I Kao
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan.
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81
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Propofol specifically suppresses IL-1β secretion but increases bacterial survival in Staphylococcus aureus-infected RAW264.7 cells. Mol Cell Biochem 2018; 449:117-125. [PMID: 29667111 PMCID: PMC6223810 DOI: 10.1007/s11010-018-3348-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 04/05/2018] [Indexed: 11/14/2022]
Abstract
Anesthetics have immunomodulatory effects, but the use of different assay systems has contributed to inconsistent results in the literature. IL-1β and reactive oxygen species (ROS) secreted by phagocytes are important factors that protect against Staphylococcus aureus infection. In this study, the effects of four intravenous anesthetics (propofol, thiamylal sodium, midazolam, and ketamine) on IL-1β secretion, ROS, and bacterial survival in S. aureus-infected RAW264.7 cells were evaluated. S. aureus-infected RAW264.7 cells with or without intravenous anesthetic treatment were established as the experimental model. Cell supernatants were subjected to ELISAs to measure secreted IL-1β. Cell pellets were subjected to qPCR and western blot analyses to analyze IL-1β mRNA and protein levels. Luminol chemiluminescence assays were used to detect ROS, and bacterial survival was determined by counting the colony forming units at the beginning and end of the infection. Compared with the levels after treatment with the other intravenous anesthetics, secreted IL-1β levels were lowest in the supernatant of S. aureus-infected RAW264.7 cell cultures after propofol treatment, but propofol did not decrease IL-1β mRNA or protein expression. However, thiamylal sodium and midazolam decreased IL-1β mRNA and protein expression in a dose-dependent manner. Additionally, propofol substantially decreased S. aureus-stimulated ROS and phagocytosis. Bacterial survival was strongly increased by propofol treatment. Of the four intravenous anesthetics, propofol was the most potent inhibitor of IL-1β secretion and ROS level in S. aureus-infected RAW264.7 cells; moreover, propofol resulted in an increase in bacterial survival by inhibiting ROS and phagocytosis.
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82
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Liu FC, Yu HP, Lin CY, Elzoghby AO, Hwang TL, Fang JY. Use of cilomilast-loaded phosphatiosomes to suppress neutrophilic inflammation for attenuating acute lung injury: the effect of nanovesicular surface charge. J Nanobiotechnology 2018; 16:35. [PMID: 29602314 PMCID: PMC5877390 DOI: 10.1186/s12951-018-0364-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/26/2018] [Indexed: 01/04/2023] Open
Abstract
Background Cilomilast is a phosphodiesterase 4 (PDE4) inhibitor for treating inflammatory lung diseases. This agent has a narrow therapeutic index with significant adverse effects on the nervous system. This study was conducted to entrap cilomilast into PEGylated phosphatidylcholine-rich niosomes (phosphatiosomes) to improve pulmonary delivery via the strong affinity to pulmonary surfactant film. Neutrophils were used as a cell model to test the anti-inflammatory activity of phosphatiosomes. In an in vivo approach, mice were given lipopolysaccharide to produce acute lung injury. The surface charge in phosphatiosomes that influenced the anti-inflammatory potency is discussed in this study. Results The average diameter of the phosphatiosomes was about 100 nm. The zeta potential of anionic and cationic nanovesicles was − 35 and 32 mV, respectively. Cilomilast in both its free and nanocapsulated forms inhibited superoxide anion production but not elastase release in activated neutrophils. Cationic phosphatiosomes mitigated calcium mobilization far more effectively than the free drug. In vivo biodistribution evaluated by organ imaging demonstrated a 2-fold ameliorated lung uptake after dye encapsulation into the phosphatiosomes. The lung/brain distribution ratio increased from 3 to 11 after nanocarrier loading. The intravenous nanocarriers deactivated the neutrophils in ALI, resulting in the elimination of hemorrhage and alveolar wall damage. Only cationic phosphatiosomes could significantly suppress IL-1β and TNF-α in the inflamed lung tissue. Conclusions These results suggest that phosphatiosomes should further be investigated as a potential nanocarrier for the treatment of pulmonary inflammation.
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Affiliation(s)
- Fu-Chao Liu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
| | - Huang-Ping Yu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
| | - Cheng-Yu Lin
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, 333, Taiwan
| | - Ahmed O Elzoghby
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.,Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Tsong-Long Hwang
- Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan. .,Research Center for Industry of Human Ecology and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan. .,Cell Pharmacology Laboratory, Graduate Institute of Natural Products, Chang Gung University, 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, 333, Taiwan. .,Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Kweishan, Taoyuan, Taiwan.
| | - Jia-You Fang
- Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan. .,Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, 333, Taiwan. .,Research Center for Industry of Human Ecology and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan. .,Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Kweishan, Taoyuan, Taiwan.
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83
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Abstract
Three new polyoxygenated steroids, michosterols A–C (1–3), and four known compounds (4–7) were isolated from the ethyl acetate (EtOAc) extract of the soft coral Lobophytum michaelae, collected off the coast of Taitung. The structures of the new compounds were elucidated on the basis of spectroscopic analyses and comparison of the nuclear magnetic resonance (NMR) data with related steroids. The cytotoxicity of compounds 1–3 against the proliferation of a limited panel of cancer cell lines was assayed. Compound 1 was found to display moderate cytotoxicity against adenocarcinomic human alveolar basal epithelial (A549) cancer cells. It also exhibited potent anti-inflammatory activity by suppressing superoxide anion generation and elastase release in N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLP/CB)-stimulated human neutrophils. Furthermore, 3 could effectively inhibit elastase release, as well.
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84
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Ayoub IM, Korinek M, Hwang TL, Chen BH, Chang FR, El-Shazly M, Singab ANB. Probing the Antiallergic and Anti-inflammatory Activity of Biflavonoids and Dihydroflavonols from Dietes bicolor. JOURNAL OF NATURAL PRODUCTS 2018; 81:243-253. [PMID: 29381070 DOI: 10.1021/acs.jnatprod.7b00476] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Dietes bicolor (Iridaceae) is an ornamental plant used by African local healers to treat diarrhea and dysentery. A new dihydroflavonol, (2R,3R)-3,5,7-trihydroxy-8-methoxyflavanone (1); two known dihydroflavonols, trans-3-hydroxy-5-methoxy-6,7-methylenedioxyflavanone (2) and trans-3-hydroxy-5,7-dimethoxyflavanone (3); the known isoflavone orobol 7,3'-di-O-methyl ether (4); the known biflavones lanaroflavone (5), robustaflavone (6), and amentoflavone (7); and β-sitosterol (8) were isolated from the CH2Cl2 fraction of D. bicolor leaves. The extract showed potent activity in antiallergic and anti-inflammatory assays. The structures of the isolates were identified by spectroscopic and spectrometric methods. Compounds 6 and 7 (400 μM) exhibited antiallergic activity by inhibiting antigen-induced β-hexosaminidase release at 45.7% and 46.3%, respectively. Moreover, 6 and 7 exerted anti-inflammatory activity as demonstrated by the inhibition of superoxide anion generation with an IC50 value of 1.0 μM as well as the inhibition of elastase release with IC50 values of 0.45 and 0.75 μM, respectively. The anti-inflammatory activity was further explained by the virtual docking of the isolated compounds to the binding sites in the human neutrophil elastase (HNE) crystal structure using Discovery Studio 2.5. It was concluded that the biflavonoids bind directly to HNE and inhibit its enzymatic activity based on the CDOCKER algorithm. The data provided evidence for the potential use of D. bicolor against certain diseases related to allergy and inflammation.
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Affiliation(s)
- Iriny M Ayoub
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
| | | | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan 33302, Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology , Taoyuan 33302, Taiwan
| | - Bing-Hung Chen
- Department of Medical Research, Kaohsiung Medical University Hospital , Kaohsiung 80708, Taiwan
- The Institute of Biomedical Sciences, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | | | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo 11432, Egypt
| | - Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
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85
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Sung PJ, Wen ZH, Hwang TL, Zheng LG, Chang YC, Chen JJ. (+)-12-epi-Fragilide G, a New Chlorinated Briarane from the Sea Whip Gorgonian Coral Junceella fragilis. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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86
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Hsu CP, Lin CH, Kuo CY. Endothelial-cell inflammation and damage by reactive oxygen species are prevented by propofol via ABCA1-mediated cholesterol efflux. Int J Med Sci 2018; 15:978-985. [PMID: 30013438 PMCID: PMC6036153 DOI: 10.7150/ijms.24659] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/27/2018] [Indexed: 01/06/2023] Open
Abstract
Background: Cholesterol efflux efficiency, reactive oxygen species, and inflammation are closely related to cardiovascular diseases. Our aim was to investigate the effect of propofol on cholesterol-loaded rat aortic endothelial cells after high-density lipoprotein treatment in vitro. Methods and Results: The results showed that propofol promoted cholesterol efflux and ameliorated inflammation and reactive oxygen species overproduction according to the analysis of p65 nuclear translocation and a 2',7'-dichlorofluorescin diacetate assay, respectively. Conclusions: These results provide a possible explanation for the anti-inflammatory, antioxidant, and cholesterol efflux-promoting effects of propofol on rat aortic endothelial cells after incubation with high-density lipoprotein.
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Affiliation(s)
- Chih-Peng Hsu
- Department of Cardiology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Chih-Hung Lin
- Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan
| | - Chan-Yen Kuo
- Graduate Institute of Systems Biology and Bioinformatics, National Central University, Chungli, Taiwan.,Department of Ophthalmology, Hsin Sheng Junior College of Medical Care and Management, Longtan, Taiwan
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87
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Chuang SY, Lin YK, Lin CF, Wang PW, Chen EL, Fang JY. Elucidating the Skin Delivery of Aglycone and Glycoside Flavonoids: How the Structures Affect Cutaneous Absorption. Nutrients 2017; 9:nu9121304. [PMID: 29189718 PMCID: PMC5748754 DOI: 10.3390/nu9121304] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 11/21/2017] [Accepted: 11/28/2017] [Indexed: 12/14/2022] Open
Abstract
Flavonoids are bioactive phytochemicals that exhibit protective potential against cutaneous inflammation and photoaging. We selected eight flavonoid aglycones or glycosides to elucidate the chemistry behind their skin absorption capability through experimental and computational approaches. The skin delivery was conducted using nude mouse and pig skins mounted on an in vitro Franz cell assembly. The anti-inflammatory activity was examined using the O2•– and elastase inhibition in activated human neutrophils. In the equivalent dose (6 mM) application on nude mouse skin, the skin deposition of naringenin and kaempferol was 0.37 and 0.11 nM/mg, respectively, which was higher than that of the other flavonoids. Both penetrants were beneficial for targeted cutaneous therapy due to their minimal diffusion across the skin. The absorption was generally greater for topically applied aglycones than glycosides. Although naringenin could be classified as a hydrophilic flavonoid, the flexibility of the chiral center in the C ring of this flavanone could lead to better skin transport than the flavonols and flavones with a planar structure. An optimized hydrophilic and lipophilic balance of the flavonoid structure was important for governing the cutaneous delivery. The hydrogen bond acceptor and stratum corneum lipid docking estimated by molecular modeling showed some relationships with the skin deposition. The interaction with cholesteryl sulfate could be a factor for predicting the cutaneous absorption of aglycone flavonoids (correlation coefficient = 0.97). Baicalin (3 µM) showed the highest activity against oxidative burst with an O2•– inhibition percentage of 77%. Although naringenin displayed an inhibition efficiency of only 20%, this compound still demonstrated an impressive therapeutic index because of the high absorption. Our data are advantageous to providing the information on the structure–permeation relationship for topically applied flavonoids.
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Affiliation(s)
- Shih-Yi Chuang
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan 333, Taiwan.
| | - Yin-Ku Lin
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan.
- School of Traditional Chinese Medicine, Chang Gung University, Kweishan, Taoyuan 333, Taiwan.
| | - Chwan-Fwu Lin
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan 333, Taiwan.
- Department of Cosmetic Science, Chang Gung University of Science and Technology, Kweishan, Taoyuan 333, Taiwan.
| | - Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
| | - En-Li Chen
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan 333, Taiwan.
| | - Jia-You Fang
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan 333, Taiwan.
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan 333, Taiwan.
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Kweishan, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan 333, Taiwan.
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88
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Anti-Inflammatory Lobane and Prenyleudesmane Diterpenoids from the Soft Coral Lobophytum varium. Mar Drugs 2017; 15:md15100300. [PMID: 28961211 PMCID: PMC5666408 DOI: 10.3390/md15100300] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 09/22/2017] [Accepted: 09/27/2017] [Indexed: 11/19/2022] Open
Abstract
New lobane-based diterpenoids lobovarols A–D (1–4) and a prenyleudesmane-type diterpenoid lobovarol E (5) along with seven known related diterpenoids (6–12) were isolated from the ethyl acetate extract of a Taiwanese soft coral Lobophytum varium. Their structures were identified on the basis of multiple spectroscopic analyses and spectral comparison. The absolute configuration at C-16 of the known compound 11 is reported herein for the first time. The anti-inflammatory activities of compounds 1–12 were assessed by measuring their inhibitory effect on N-formyl-methionyl-leucyl-phenyl-alanine/cytochalasin B (fMLP/CB)-induced superoxide anion generation and elastase release in human neutrophils. Metabolites 2, 5, and 11 were found to show moderate inhibitory activity on the generation of superoxide anion, while compounds 5, 8, 11, and 12 could effectively suppress elastase release in fMLP/CB-stimulated human neutrophil cells at 10 μM. All of the isolated diterpenoids did not exhibit cytotoxic activity (IC50 > 50 μM) towards a limited panel of cancer cell lines.
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89
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Bioactive Steroids with Methyl Ester Group in the Side Chain from a Reef Soft Coral Sinularia brassica Cultured in a Tank. Mar Drugs 2017; 15:md15090280. [PMID: 28862648 PMCID: PMC5618419 DOI: 10.3390/md15090280] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022] Open
Abstract
A continuing chemical investigation of the ethyl acetate (EtOAc) extract of a reef soft coral Sinularia brassica, which was cultured in a tank, afforded four new steroids with methyl ester groups, sinubrasones A–D (1–4) for the first time. In particular, 1 possesses a β-d-xylopyranose. The structures of the new compounds were elucidated on the basis of spectroscopic analyses. The cytotoxicities of compounds 1–4 against the proliferation of a limited panel of cancer cell lines were assayed. The anti-inflammatory activities of these new compounds 1–4 were also evaluated by measuring their ability to suppress superoxide anion generation and elastase release in N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLP/CB)-induced human neutrophils. Compounds 2 and 3 were shown to exhibit significant cytotoxicity, and compounds 3 and 4 were also found to display attracting anti-inflammatory activities.
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90
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Chan YY, Hwang TL, Kuo PC, Hung HY, Wu TS. Constituents of the Fruits of Citrus medica L. var. sarcodactylis and the Effect of 6,7-Dimethoxy-coumarin on Superoxide Anion Formation and Elastase Release. Molecules 2017; 22:molecules22091454. [PMID: 28862688 PMCID: PMC6151612 DOI: 10.3390/molecules22091454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 01/19/2023] Open
Abstract
Investigation of the chemical constituents from the fruits of Citrus medica L. var. sarcodactylis Swingle has led to the characterization of a new sesquiterpene 1 along with thirty-two known compounds. The structure of 1 was established on the basis of 2D NMR spectroscopic and mass spectrometric analyses, and the known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature. In addition, most of the isolated compounds were evaluated for the activity assayed by the in vitro inhibition of superoxide anion generation and elastase release by human neutrophils. The results showed that only 6,7-dimethoxycoumarin (5) exhibited significant inhibition of superoxide anion generation, with IC50 value of 3.8 ± 1.4 μM.
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Affiliation(s)
- Yu-Yi Chan
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung 907, Taiwan.
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91
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Heil LBB, Silva PL, Pelosi P, Rocco PRM. Immunomodulatory effects of anesthetics in obese patients. World J Crit Care Med 2017; 6:140-152. [PMID: 28828299 PMCID: PMC5547428 DOI: 10.5492/wjccm.v6.i3.140] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/27/2017] [Accepted: 07/10/2017] [Indexed: 02/06/2023] Open
Abstract
Anesthesia and surgery have an impact on inflammatory responses, which influences perioperative homeostasis. Inhalational and intravenous anesthesia can alter immune-system homeostasis through multiple processes that include activation of immune cells (such as monocytes, neutrophils, and specific tissue macrophages) with release of pro- or anti-inflammatory interleukins, upregulation of cell adhesion molecules, and overproduction of oxidative radicals. The response depends on the timing of anesthesia, anesthetic agents used, and mechanisms involved in the development of inflammation or immunosuppression. Obese patients are at increased risk for chronic diseases and may have the metabolic syndrome, which features insulin resistance and chronic low-grade inflammation. Evidence has shown that obesity has adverse impacts on surgical outcome, and that immune cells play an important role in this process. Understanding the effects of anesthetics on immune-system cells in obese patients is important to support proper selection of anesthetic agents, which may affect postoperative outcomes. This review article aims to integrate current knowledge regarding the effects of commonly used anesthetic agents on the lungs and immune response with the underlying immunology of obesity. Additionally, it identifies knowledge gaps for future research to guide optimal selection of anesthetic agents for obese patients from an immunomodulatory standpoint.
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92
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Honokiol suppresses formyl peptide-induced human neutrophil activation by blocking formyl peptide receptor 1. Sci Rep 2017; 7:6718. [PMID: 28751674 PMCID: PMC5532207 DOI: 10.1038/s41598-017-07131-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 06/23/2017] [Indexed: 11/24/2022] Open
Abstract
Formyl peptide receptor 1 (FPR1) mediates bacterial and mitochondrial N-formyl peptides-induced neutrophil activation. Therefore, FPR1 is an important therapeutic target for drugs to treat septic or sterile inflammatory diseases. Honokiol, a major bioactive compound of Magnoliaceae plants, possesses several anti-inflammatory activities. Here, we show that honokiol exhibits an inhibitory effect on FPR1 binding in human neutrophils. Honokiol inhibited superoxide anion generation, reactive oxygen species formation, and elastase release in bacterial or mitochondrial N-formyl peptides (FPR1 agonists)-activated human neutrophils. Adhesion of FPR1-induced human neutrophils to cerebral endothelial cells was also reduced by honokiol. The receptor-binding results revealed that honokiol repressed FPR1-specific ligand N-formyl-Nle-Leu-Phe-Nle-Tyr-Lys-fluorescein binding to FPR1 in human neutrophils, neutrophil-like THP-1 cells, and hFPR1-transfected HEK293 cells. However, honokiol did not inhibit FPR2-specific ligand binding to FPR2 in human neutrophils. Furthermore, honokiol inhibited FPR1 agonist-induced calcium mobilization as well as phosphorylation of p38 MAPK, ERK, and JNK in human neutrophils. In conclusion, our data demonstrate that honokiol may have therapeutic potential for treating FPR1-mediated inflammatory diseases.
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93
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Whuang TY, Tsai HC, Su YD, Hwang TL, Sung PJ. Sterols from the Octocoral Nephthea columnaris. Mar Drugs 2017; 15:md15070212. [PMID: 28677628 PMCID: PMC5532654 DOI: 10.3390/md15070212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/26/2017] [Accepted: 07/01/2017] [Indexed: 01/24/2023] Open
Abstract
Two new sterols, columnaristerols B (1) and C (2), along with two known analogues, 5,6-epoxylitosterol (3) and litosterol (4), were obtained from the octocoral Nephthea columnaris. The structures of new sterols 1 and 2 were elucidated by using spectroscopic methods and comparing the spectroscopic data with those of known related metabolites. Sterol 3 was found to suppress superoxide anion production and elastase secretion by human neutrophils.
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Affiliation(s)
- Ta-Yuan Whuang
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
| | - Hong-Chieh Tsai
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Department of Neurosurgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Yin-Di Su
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
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94
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Korinek M, Tsai YH, El-Shazly M, Lai KH, Backlund A, Wu SF, Lai WC, Wu TY, Chen SL, Wu YC, Cheng YB, Hwang TL, Chen BH, Chang FR. Anti-allergic Hydroxy Fatty Acids from Typhonium blumei Explored through ChemGPS-NP. Front Pharmacol 2017; 8:356. [PMID: 28674495 PMCID: PMC5474496 DOI: 10.3389/fphar.2017.00356] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 05/24/2017] [Indexed: 12/14/2022] Open
Abstract
Increasing prevalence of allergic diseases with an inadequate variety of treatment drives forward search for new alternative drugs. Fatty acids, abundant in nature, are regarded as important bioactive compounds and powerful nutrients playing an important role in lipid homeostasis and inflammation. Phytochemical study on Typhonium blumei Nicolson and Sivadasan (Araceae), a folk anti-cancer and anti-inflammatory medicine, yielded four oxygenated fatty acids, 12R-hydroxyoctadec-9Z,13E-dienoic acid methyl ester (1) and 10R-hydroxyoctadec-8E,12Z-dienoic acid methyl ester (2), 9R-hydroxy-10E-octadecenoic acid methyl ester (3), and 12R*-hydroxy-10E-octadecenoic acid methyl ester (4). Isolated compounds were identified by spectroscopic methods along with GC-MS analysis. Isolated fatty acids together with a series of saturated, unsaturated and oxygenated fatty acids were evaluated for their anti-inflammatory and anti-allergic activities in vitro. Unsaturated (including docosahexaenoic and eicosapentaenoic acids) as well as hydroxylated unsaturated fatty acids exerted strong anti-inflammatory activity in superoxide anion generation (IC50 2.14-3.73 μM) and elastase release (IC50 1.26-4.57 μM) assays. On the other hand, in the anti-allergic assays, the unsaturated fatty acids were inactive, while hydroxylated fatty acids showed promising inhibitory activity in A23187- and antigen-induced degranulation assays (e.g., 9S-hydroxy-10E,12Z-octadecadienoic acid, IC50 92.4 and 49.7 μM, respectively). According to our results, the presence of a hydroxy group in the long chain did not influence the potent anti-inflammatory activity of free unsaturated acids. Nevertheless, hydroxylation of fatty acids (or their methyl esters) seems to be a key factor for the anti-allergic activity observed in the current study. Moreover, ChemGPS-NP was explored to predict the structure-activity relationship of fatty acids. The anti-allergic fatty acids formed different cluster distant from clinically used drugs. The bioactivity of T. blumei, which is historically utilized in folk medicine, might be related to the content of fatty acids and their metabolites.
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Affiliation(s)
- Michal Korinek
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Department of Biotechnology, College of Life Science, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Yi-Hong Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Mohamed El-Shazly
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams UniversityCairo, Egypt
| | - Kuei-Hung Lai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Division of Pharmacognosy, Department of Medicinal Chemistry, Uppsala UniversityUppsala, Sweden
| | - Anders Backlund
- Division of Pharmacognosy, Department of Medicinal Chemistry, Uppsala UniversityUppsala, Sweden
| | - Shou-Fang Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Natural Resource Development Institute of Pharmaceutics, Development Center for BiotechnologyNew Taipei City, Taiwan
| | - Wan-Chun Lai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Tung-Ying Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Shu-Li Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Research Center for Natural Products and Drug Development, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University HospitalKaohsiung, Taiwan
| | - Yuan-Bin Cheng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Research Center for Natural Products and Drug Development, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Center for Infectious Disease and Cancer Research, Kaohsiung Medical UniversityKaohsiung, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and TechnologyTaoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial HospitalTaoyuan, Taiwan
| | - Bing-Hung Chen
- Department of Biotechnology, College of Life Science, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University HospitalKaohsiung, Taiwan.,The Institute of Biomedical Sciences, National Sun Yat-sen UniversityKaohsiung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Center for Infectious Disease and Cancer Research, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-sen UniversityKaohsiung, Taiwan.,Research Center for Environmental Medicine, Kaohsiung Medical UniversityKaohsiung, Taiwan.,Cancer Center, Kaohsiung Medical University HospitalKaohsiung, Taiwan
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95
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Kuo PC, Liao YR, Hung HY, Chuang CW, Hwang TL, Huang SC, Shiao YJ, Kuo DH, Wu TS. Anti-Inflammatory and Neuroprotective Constituents from the Peels of Citrus grandis. Molecules 2017; 22:molecules22060967. [PMID: 28598384 PMCID: PMC6152662 DOI: 10.3390/molecules22060967] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/08/2017] [Accepted: 06/08/2017] [Indexed: 12/31/2022] Open
Abstract
A series of chromatographic separations performed on the ethanol extracts of the peels of Citrus grandis has led to the characterization of forty compounds, including seventeen coumarins, eight flavonoids, two triterpenoids, four benzenoids, two steroids, one lignan, one amide, and five other compounds, respectively. The chemical structures of the purified constituents were identified on the basis of spectroscopic elucidation, including 1D- and 2D-NMR, UV, IR, and mass spectrometric analysis. Most of the isolated compounds were examined for their inhibition of superoxide anion generation and elastase release by human neutrophils. Among the isolates, isomeranzin (3), 17,18-dihydroxybergamottin (12), epoxybergamottin (13), rhoifolin (19), vitexicarpin (22) and 4-hydroxybenzaldehyde (29) displayed the most significant inhibition of superoxide anion generation and elastase release with IC50 values ranged from 0.54 to 7.57 μM, and 0.43 to 4.33 μM, respectively. In addition, 7-hydroxy-8-(2′-hydroxy-3′-methylbut-3′-enyl)coumarin (8) and 17,18-dihydroxybergamottin (12) also exhibited the protection of neurons against Aβ-mediated neurotoxicity at 50 μM.
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Affiliation(s)
- Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Yu-Ren Liao
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Chia-Wei Chuang
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Shiow-Chyn Huang
- Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Young-Ji Shiao
- Division of Basic Chinese Medicine, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan.
| | - Daih-Huang Kuo
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung 907, Taiwan.
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung 907, Taiwan.
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96
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Yang SC, Chang SH, Hsieh PW, Huang YT, Ho CM, Tsai YF, Hwang TL. Dipeptide HCH6-1 inhibits neutrophil activation and protects against acute lung injury by blocking FPR1. Free Radic Biol Med 2017; 106:254-269. [PMID: 28232203 DOI: 10.1016/j.freeradbiomed.2017.02.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/24/2017] [Accepted: 02/17/2017] [Indexed: 12/12/2022]
Abstract
Formyl peptide receptor 1 (FPR1) is an emerging therapeutic target for the discovery of drugs to treat neutrophilic inflammatory diseases. However, development of FPR1 antagonists for clinical use is still inadequate. The purpose of this study was to identify a synthetic dipeptide N-(N-benzoyl-L-tryptophanyl)-D-phenylanlanine methyl ester (HCH6-1) as a FPR1 inhibitor and to investigate its protective effects against acute lung injury (ALI). HCH6-1 inhibited superoxide anion generation, elastase release, and chemotaxis in human neutrophils specifically activated by formyl-L-methionyl-L-leucyl-L-phenylalanine (fMLF), an FPR1 agonist. HCH6-1 produced right shifts in the concentration-response curves of fMLF, suggesting that HCH6-1 was a competitive antagonist of FPR1. Indeed, HCH6-1 bound to FPR1 in human neutrophils and neutrophil-like THP-1 as well as hFPR1-transfected HEK293 cells. Also, the FPR1 downstream signaling pathways were competitively inhibited by HCH6-1. Furthermore, HCH6-1 prevented pulmonary neutrophil infiltration and edema along with alveolar damage in LPS-induced ALI in mice. Our findings suggest that HCH6-1, a FPR1 antagonist, may have potential as a new therapeutic agent for treating FPR1-involved inflammatory lung diseases.
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Affiliation(s)
- Shun-Chin Yang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei 112, Taiwan; Division of Natural Products, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Shih-Hsin Chang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Pei-Wen Hsieh
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Division of Natural Products, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Yin-Ting Huang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chiu-Ming Ho
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei 112, Taiwan
| | - Yung-Fong Tsai
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Division of Natural Products, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
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97
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Tsai YF, Chu TC, Chang WY, Wu YC, Chang FR, Yang SC, Wu TY, Hsu YM, Chen CY, Chang SH, Hwang TL. 6-Hydroxy-5,7-dimethoxy-flavone suppresses the neutrophil respiratory burst via selective PDE4 inhibition to ameliorate acute lung injury. Free Radic Biol Med 2017; 106:379-392. [PMID: 28263828 DOI: 10.1016/j.freeradbiomed.2017.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/26/2017] [Accepted: 03/01/2017] [Indexed: 01/11/2023]
Abstract
Over-activated neutrophils produce enormous oxidative stress and play a key role in the development of acute and chronic inflammatory diseases. 6-Hydroxy-5,7-dimethoxy-flavone (UFM24), a flavone isolated from the Annonaceae Uvaria flexuosa, showed inhibitory effects on human neutrophil activation and salutary effects on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. UFM24 potently inhibited superoxide anion (O2•-) generation, reactive oxidants, and CD11b expression, but not elastase release, in N-formyl-l-methionyl-l-leucyl-l-phenylalanine (fMLF)-activated human neutrophils. However, UFM24 failed to scavenge O2•- and inhibit the activity of subcellular NADPH oxidase. fMLF-induced phosphorylation of protein kinase B (Akt) was inhibited by UFM24. Noticeably, UFM24 increased cyclic adenosine monophosphate (cAMP) concentration and protein kinase (PK) A activity in activated human neutrophils. PKA inhibitors significantly reversed the inhibitory effects of UFM24, suggesting that the effects of UFM24 were through cAMP/PKA-dependent inhibition of Akt activation. Additionally, activity of cAMP-related phosphodiesterase (PDE)4, but not PDE3 or PDE7, was significantly reduced by UFM24. Furthermore, UFM24 attenuated neutrophil infiltration, myeloperoxidase activity, and pulmonary edema in LPS-induced ALI in mice. In conclusion, our data demonstrated that UFM24 inhibits oxidative burst in human neutrophils through inhibition of PDE4 activity. UFM24 also exhibited significant protection against endotoxin-induced ALI in mice. UFM24 has potential as an anti-inflammatory agent for treating neutrophilic lung damage.
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Affiliation(s)
- Yung-Fong Tsai
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Tzu-Chi Chu
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Wen-Yi Chang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan; Chinese Medicine Research and Development Center and Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung, 807 Taiwan
| | - Shun-Chin Yang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei 112, Taiwan
| | - Tung-Ying Wu
- Chinese Medicine Research and Development Center and Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Yu-Ming Hsu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chun-Yu Chen
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Shih-Hsin Chang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
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98
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Kuo PC, Hung HY, Hwang TL, Du WK, Ku HC, Lee EJ, Tai SH, Chen FA, Wu TS. Anti-inflammatory Flavan-3-ol-dihydroretrochalcones from Daemonorops draco. JOURNAL OF NATURAL PRODUCTS 2017; 80:783-789. [PMID: 28398735 DOI: 10.1021/acs.jnatprod.7b00039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Four A-type flavan-3-ol-dihydroretrochalcone dimers, dragonins A-D (1-4), were characterized from the traditional Chinese medicine Sanguis Draconis. The structures of 1-4 were elucidated by spectroscopic and spectrometric analyses. Compounds 1 and 2 exhibited significant inhibition of fMLP/CB-induced superoxide anion and elastase. The signaling pathways accounting for the inhibitory effects of compound 2 were also elucidated. These purified A-type flavan-3-ol-dihydroretrochalcones are new potential leads for the development of anti-inflammatory drugs.
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Affiliation(s)
- Ping-Chung Kuo
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University ; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Wen-Ke Du
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Hsiang-Chih Ku
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University ; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - E-Jian Lee
- Department of Surgery and Anesthesiology, and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Shih-Huang Tai
- Department of Surgery and Anesthesiology, and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Fu-An Chen
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
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99
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Kuo PC, Hung HY, Nian CW, Hwang TL, Cheng JC, Kuo DH, Lee EJ, Tai SH, Wu TS. Chemical Constituents and Anti-inflammatory Principles from the Fruits of Forsythia suspensa. JOURNAL OF NATURAL PRODUCTS 2017; 80:1055-1064. [PMID: 28218000 DOI: 10.1021/acs.jnatprod.6b01141] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fifty compounds were isolated from the fruits of Forsythia suspensa, including 13 new compounds characterized as eight new diterpenoids (1-8), three new lignans (9-11), a new iridoid (12), and a new triterpenoid (13). Their structures were established on the basis of spectroscopic and spectrometric analysis. Most of the isolated compounds were examined for their anti-inflammatory activity in vitro. The results showed that several compounds displayed significant inhibition of fMLP/CB-induced superoxide anion generation and elastase release, with IC50 values ranging from 0.6 ± 0.1 to 8.6 ± 0.8 μg/mL and from 0.8 ± 0.3 to 7.3 ± 1.1 μg/mL, respectively.
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Affiliation(s)
- Ping-Chung Kuo
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Chi-Wei Nian
- Department of Chemistry, National Cheng Kung University , Tainan 701, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology; and Department of Anesthesiology, Chang Gung Memorial Hospital , Taoyuan 333, Taiwan
| | - Ju-Chien Cheng
- Department of Medical Laboratory Science and Biotechnology, China Medical University , Taichung 404, Taiwan
| | - Daih-Huang Kuo
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
| | - E-Jian Lee
- Department of Surgery and Anesthesiology and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Shih-Huang Tai
- Department of Surgery and Anesthesiology and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
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100
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Briarenols C-E, New Polyoxygenated Briaranes from the Octocoral Briareum excavatum. Molecules 2017; 22:molecules22030475. [PMID: 28304345 PMCID: PMC6155408 DOI: 10.3390/molecules22030475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/10/2017] [Accepted: 03/15/2017] [Indexed: 12/31/2022] Open
Abstract
Three new polyoxygenated briarane diterpenoids, briarenols C–E (1–3), were isolated from the octocoral Briareum excavatum. The structures of briaranes 1–3 were elucidated by interpretation of spectroscopic data, and the methylenecyclohexane ring in 1 was found to exist in a twisted boat conformation. Briarenol D (2) displayed an inhibitory effect on the release of elastase by human neutrophils with an IC50 value of 4.65 μM. Briarenol E (3) was found to inhibit the protein expression of pro-inflammatory inducible nitric oxide synthase (iNOS) in a murine macrophage-like cell line, RAW 264.7, stimulated with lipopolysaccharides (LPS).
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