651
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Morroni F, Sita G, Graziosi A, Turrini E, Fimognari C, Tarozzi A, Hrelia P. Neuroprotective Effect of Caffeic Acid Phenethyl Ester in A Mouse Model of Alzheimer's Disease Involves Nrf2/HO-1 Pathway. Aging Dis 2018; 9:605-622. [PMID: 30090650 PMCID: PMC6065293 DOI: 10.14336/ad.2017.0903] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/03/2017] [Indexed: 12/15/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive pathology, where dementia symptoms gradually worsen over a number of years. The hallmarks of AD, such as amyloid β-peptide (Aβ) in senile plaque and neurofibrillary tangles, are strongly intertwined with oxidative stress, which is considered one of the common effectors of the cascade of degenerative events. The endogenous nuclear factor erythroid 2-related factor 2 (Nrf2) is the "master regulator" of the antioxidant response and it is known as an indicator and regulator of oxidative stress. The present study aimed to determine the potential neuroprotective activity of caffeic acid phenethyl ester (CAPE), a polyphenolic compound abundant in honeybee, against the neurotoxicity of Aβ1-42 oligomers (AβO) in mice. An intracerebroventricular (i.c.v.) injection of AβO into the mouse brain triggered increased reactive oxygen species levels, neurodegeneration, neuroinflammation, and memory impairment. In contrast, the intraperitoneal administration of CAPE (10 mg/kg) after i.c.v. AβO-injection counteracted oxidative stress accompanied by an induction of Nrf2 and heme oxygenase-1 via the modulation of glycogen synthase kinase 3β in the hippocampus of mice. Additionally, CAPE treatment decreased AβO-induced neuronal apoptosis and neuroinflammation, and improved learning and memory, protecting mice against the decline in spatial cognition. Our findings demonstrate that CAPE could potentially be considered as a promising neuroprotective agent against progressive neurodegenerative diseases such as AD.
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Affiliation(s)
- Fabiana Morroni
- 1Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Giulia Sita
- 1Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Agnese Graziosi
- 1Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Eleonora Turrini
- 2Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47900 Rimini, Italy
| | - Carmela Fimognari
- 2Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47900 Rimini, Italy
| | - Andrea Tarozzi
- 2Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47900 Rimini, Italy
| | - Patrizia Hrelia
- 1Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
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652
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Baldacchino S, Saliba C, Scerri J, Scerri C, Grech G. Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material. J Vis Exp 2018. [PMID: 30124640 PMCID: PMC6126584 DOI: 10.3791/57148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Nucleic acid degradation in archival tissue, tumor heterogeneity, and a lack of fresh frozen tissue specimens can negatively impact cancer diagnostic services in pathology laboratories worldwide. Gene amplification and expression diagnostic testing using archival material or material that requires transportation to servicing laboratories, needs a more robust and accurate test adapted to current clinical workflows. Our research team optimized the use of Invitrogen™ QuantiGene™ Plex Assay (Thermo Fisher Scientific) to quantify RNA in archival material using branched-DNA (bDNA) technology on Luminex xMAP® magnetic beads. The gene expression assay described in this manuscript is a novel, quick, and multiplex method that can accurately classify breast cancer into the different molecular subtypes, omitting the subjectivity of interpretation inherent in imaging techniques. In addition, due to the low input of material required, heterogeneous tumors can be laser microdissected using Hematoxylin and Eosin (H&E) stained sections. This method has a wide range of possible applications including tumor classification with diagnostic potential and measurement of biomarkers in liquid biopsies, which would allow better patient management and disease monitoring. In addition, the quantitative measurement of biomarkers in archival material is useful in oncology research with access to libraries of clinically-annotated material, in which retrospective studies can validate potential biomarkers and their clinical outcome correlation.
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Affiliation(s)
- Shawn Baldacchino
- Department of Pathology, Faculty of Medicine & Surgery, University of Malta
| | - Christian Saliba
- Centre for Molecular Medicine and Biobanking, University of Malta
| | - Jeanesse Scerri
- Department of Physiology & Biochemistry, Faculty of Medicine and Surgery, University of Malta
| | - Christian Scerri
- Department of Physiology & Biochemistry, Faculty of Medicine and Surgery, University of Malta
| | - Godfrey Grech
- Department of Pathology, Faculty of Medicine & Surgery, University of Malta;
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653
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Hashemi MS, Mozdarani H, Ghaedi K, Nasr-Esfahani MH. Among seven testis-specific molecular markers, SPEM1
appears to have a significant clinical value for prediction of sperm retrieval in azoospermic men. Andrology 2018; 6:890-895. [DOI: 10.1111/andr.12528] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 06/09/2018] [Accepted: 06/30/2018] [Indexed: 01/09/2023]
Affiliation(s)
- M.-S. Hashemi
- Department of Medical Genetics; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| | - H. Mozdarani
- Department of Medical Genetics; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| | - K. Ghaedi
- Biology Department; Faculty of Sciences; University of Isfahan; Isfahan Iran
- Department of Cellular Biotechnology; Cell Science Research Center; Royan Institute for Biotechnology; ACECR; Isfahan Iran
| | - M. H. Nasr-Esfahani
- Department of Reproductive Biotechnology; Reproductive Biomedicine Research Center; Royan Institute for Biotechnology; ACECR; Isfahan Iran
- Isfahan Fertility and Infertility Center; Isfahan Iran
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654
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Jing C, Wen Z, Zou P, Yuan Y, Jing W, Li Y, Zhang C. Consumption of Black Legumes Glycine soja and Glycine max Lowers Serum Lipids and Alters the Gut Microbiome Profile in Mice Fed a High-Fat Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7367-7375. [PMID: 29984576 DOI: 10.1021/acs.jafc.8b02016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study investigated the potential health benefits of two different species of black legume [ Glycine soja Sieb. et Zucc. and Glycine max (L.) Merr.] on diet-induced obesity. C57BL/6 mice were fed a high-fat diet (HFD) supplemented with 20% (w/w) black legume for 12 weeks, and the effects on weight gain, serum lipid levels, liver histology, gut fermentation, and microbiome profile were examined. Consumption of black legumes improved the blood lipid profile and increased fecal propionate and butyrate contents; this was accompanied by a reduction in hepatic steatosis and adipocyte size. High-throughput pyrosequencing of 16S rRNA revealed that black legumes prevented the loss of fecal microbiota diversity and richness caused by a HFD and decreased the relative abundance of Verrucomicrobia while increasing that of Bacteroidetes. Collectively, dietary supplementation with black legumes was found to have attenuated many of the adverse health consequences associated with a HFD and modulated gut microbiota in a positive way.
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Affiliation(s)
- Changliang Jing
- Marine Agriculture Research Center , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , 11 Keyuanjingsi Road , Laoshan, Qingdao , Shandong 266101 , People's Republic of China
| | - Zhiguo Wen
- Feed Research Institute of Chinese Academy of Agricultural Science , Beijing 10010 , People's Republic of China
| | - Ping Zou
- Marine Agriculture Research Center , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , 11 Keyuanjingsi Road , Laoshan, Qingdao , Shandong 266101 , People's Republic of China
| | - Yuan Yuan
- Marine Agriculture Research Center , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , 11 Keyuanjingsi Road , Laoshan, Qingdao , Shandong 266101 , People's Republic of China
| | - Weiran Jing
- Food Science and Engineering College , Qingdao Agricultural University , Qingdao , Shandong 266109 , People's Republic of China
| | - Yiqiang Li
- Marine Agriculture Research Center , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , 11 Keyuanjingsi Road , Laoshan, Qingdao , Shandong 266101 , People's Republic of China
| | - Chengsheng Zhang
- Marine Agriculture Research Center , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , 11 Keyuanjingsi Road , Laoshan, Qingdao , Shandong 266101 , People's Republic of China
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655
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Rezvani-Sharif A, Tafazzoli-Shadpour M, Avolio A. Mechanical Characterization of the Lamellar Structure of Human Abdominal Aorta in the Development of Atherosclerosis: An Atomic Force Microscopy Study. Cardiovasc Eng Technol 2018; 10:181-192. [PMID: 30006817 DOI: 10.1007/s13239-018-0370-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/08/2018] [Indexed: 12/16/2022]
Abstract
Atherosclerosis is a major risk factor for cardiovascular disease. However, mechanisms of interaction of atherosclerotic plaque development and local stiffness of the lamellar structure of the arterial wall are not well established. In the current study, the local Young's modulus of the wall and plaque components were determined for three different groups of healthy, mildly diseased and advanced atherosclerotic human abdominal aortas. Histological staining was performed to highlight the atherosclerotic plaque components and lamellar structure of the aortic media, consisting of concentric layers of elastin and interlamellar zones. The force spectroscopy mode of the atomic force microscopy was utilized to determine Young's moduli of aortic wall lamellae and plaque components at the micron level. The high variability of Young's moduli (E) at different locations of the atherosclerotic plaque such as the fibrous cap (E = 15.5± 2.6 kPa), calcification zone (E = 103.7±19.5 kPa), and lipid pool (E = 3.5±1.2 kPa) were observed. Reduction of elastin lamellae stiffness (18.6%), as well as stiffening of interlamellar zones (50%), were detected in the diseased portion of the medial layer of abdominal aortic wall compared to the healthy artery. Additionally, significant differences in the stiffness of both elastin lamellae and interlamellar zones were observed between the diseased wall and disease-free wall in incomplete plaques. Our results elucidate the alternation of the stiffness of different lamellae in the human abdominal aortic wall with atherosclerotic plaque development and may provide new insight on the remodeling of the aortic wall during the progression of atherosclerosis.
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Affiliation(s)
- Alireza Rezvani-Sharif
- Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran.,Department of Biomedical Science, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | | | - Alberto Avolio
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
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656
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Singh K, Dong Q, TimiriShanmugam PS, Koul S, Koul HK. Tetrandrine inhibits deregulated cell cycle in pancreatic cancer cells: Differential regulation of p21 Cip1/Waf1 , p27 Kip1 and cyclin D1. Cancer Lett 2018; 425:164-173. [DOI: 10.1016/j.canlet.2018.03.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/14/2018] [Accepted: 03/26/2018] [Indexed: 01/15/2023]
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657
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Cai D, Fan J, Wang S, Long R, Zhou X, Liu Y. Primary biocompatibility tests of poly(lactide-co-glycolide)-(poly-L-orithine/fucoidan) core-shell nanocarriers. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180320. [PMID: 30109086 PMCID: PMC6083702 DOI: 10.1098/rsos.180320] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Layer-by-layer (LbL) self-assembly is the technology used in intermolecular static electricity, hydrogen bonds, covalent bonds and other polymer interactions during film assembling. This technology has been widely studied in the drug carrier field. Given their use in drug delivery systems, the biocompatibility of these potential compounds should be addressed. In this work, the primary biocompatibility of poly(lactide-co-glycolide)-(poly-L-orithine/fucoidan) [PLGA-(PLO/fucoidan)] core-shell nanoparticles (NPs) was investigated. Atomic force microscopy revealed the PLGA-(PLO/Fucoidan)4 NPs to be spherical, with a uniform size distribution and a smooth surface, and the NPs were stable in physiological saline. The residual amount of methylene chloride was further determined by headspace gas chromatography, in which the organic solvent can be volatilized during preparation. Furthermore, cell viability, acridine orange/ethidium bromide staining, haemolysis and mouse systemic toxicity were all assessed to show that PLGA-(PLO/fucoidan)4 NPs were biocompatible with cells and mice. Therefore, these NPs are expected to have potential applications in future drug delivery systems.
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Affiliation(s)
- Duanhua Cai
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Jingqian Fan
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Shibin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Ruimin Long
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Xia Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Yuangang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, People's Republic of China
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658
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Zhu L, Ding Y. RGC-32 induces transition of pancreatic cancer to epithelial mesenchyme in vivo. Pancreatology 2018; 18:572-576. [PMID: 29886073 DOI: 10.1016/j.pan.2018.05.480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES This study was undertaken to investigate the induction of transition of pancreatic cancer to epithelial mesenchyme by RGC-32. METHODS Primary human pancreatic cancer cell line BXPC-3 was transfected with lentivirus overexpressing the response gene to complement-32 gene (RGC-32) and used to induce tumor in mice. The tumor sizes were measured and the expression of cytokeratin, e-cadherin and vimentin at mRNA using real time PCR and at protein levels by Western blot. RESULTS Compared with the control, mice inoculated with the cells transfected with empty vector had similar tumor size while those inoculated with the cells transfected with RGC-32 expressing virus had significantly greater tumor size. HE staining showed that tumors were formed in all treatments. Molecular analyses showed that there was no difference in the expression of the cytokeratin, e-cadherin and vimentin genes at mRNA and protein levels between control and empty vector groups. However, mice derived from cells transfected with RGC-32 expressing virus had reduced cytokeratin and e-cadherin expression and increased vimentin expression. CONCLUSIONS These data suggest that RGC-32 promotes the proliferation of pancreatic cancer and induces the epithelial-mesenchymal transition (EMT). It would be a future direction of research to investigate the regulatory mechanism of signal molecules downstream RGC-32 on EMT-related transcription factors and deliberate the role of RGC-32 in tumorigenicity. As a result, RGC-32 may become a new therapeutic target for cancers.
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Affiliation(s)
- Liang Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
| | - Ying Ding
- Department of Plastic and Cosmetic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
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659
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Alahdal M, Xing Y, Tang T, Liang J. 1-Methyl-D-tryptophan Reduces Tumor CD133 + cells, Wnt/β-catenin and NF-κβp65 while Enhances Lymphocytes NF-κβ2, STAT3, and STAT4 Pathways in Murine Pancreatic Adenocarcinoma. Sci Rep 2018; 8:9869. [PMID: 29959375 PMCID: PMC6026162 DOI: 10.1038/s41598-018-28238-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/14/2018] [Indexed: 12/31/2022] Open
Abstract
1-Methyl-D-tryptophan (1-MT) is extensively utilized in preclinical trials to deplete indoleamine 2,3-dioxigenase (IDO) activity and kynurenine pathway. Since IDO related signaling pathways aren’t well understood, some clinical reports affirmed IDO inhibiting therapeutic significance. Therefore, we did use direct tumor autologous antigens vaccination and 1-MT without chemotherapy to explore biological mechanisms and immunomodulations of 1-MT that motivate antitumor responses. However, DCs antigen-uptake capability, anti-tumor efficiency, intra-tumor and intracellular cytokines were assessed. Besides, CD133+ cells viability and tumor biomarkers were investigated. Splenocytes responses and their signaling pathways such TLRs 2 to 9, NF-κβ1-2, Wnt/β-catenin and TGF-β were dissected. Results evinced that a regimen of 1-MT and TAAs significantly reduced CSC CD133 + viability inside tumor microenvironment, besides increasing tumor cells necrosis and apoptosis. Expression of TGF-β, IDO, RANTES, and PDL-1 was also significantly reduced. Interestingly, 1-MT enhanced lymphocytes TLR2, TLR7, TLR8, and TLR9 pathways. It motivated lymphocytes’ NF-κβ2, STAT3, and STAT4 pathways, while reduced tumors’ NF-κβp65 and Wnt/β-catenin signaling pathways. We found that periphery and intra-tumor Treg cells were significantly decreased. In conclusion, depletion of indoleamine 2,3-dioxigenase activity evidenced IDO relation with tumor stem cells proliferation pathways. Furthermore, 1-MT supports immunotherapeutic vaccines susceptibility and tumor specific targeting by reducing tumorgensis signaling pathways.
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Affiliation(s)
- Murad Alahdal
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Ability of Biopharmaceuticals, Jiangsu Key Laboratory of Drug Screening, School of life science and Technology, China Pharmaceutical University, Nanjing, China.,Medical Laboratory department, Faculty of Medicine and Health Sciences, Hodeidah University, Al Hudaydah, Yemen
| | - Yun Xing
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Ability of Biopharmaceuticals, Jiangsu Key Laboratory of Drug Screening, School of life science and Technology, China Pharmaceutical University, Nanjing, China
| | - Tingting Tang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Ability of Biopharmaceuticals, Jiangsu Key Laboratory of Drug Screening, School of life science and Technology, China Pharmaceutical University, Nanjing, China
| | - Jin Liang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Ability of Biopharmaceuticals, Jiangsu Key Laboratory of Drug Screening, School of life science and Technology, China Pharmaceutical University, Nanjing, China.
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660
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Zhu J, Dong J, Ji L, Jiang P, Leung TF, Liu D, Ng LG, Tsang MSM, Jiao D, Lam CWK, Wong CK. Anti-Allergic Inflammatory Activity of Interleukin-37 Is Mediated by Novel Signaling Cascades in Human Eosinophils. Front Immunol 2018; 9:1445. [PMID: 29988381 PMCID: PMC6023969 DOI: 10.3389/fimmu.2018.01445] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/11/2018] [Indexed: 12/21/2022] Open
Abstract
IL-1 family regulatory cytokine IL-37b can suppress innate immunity and inflammatory activity in inflammatory diseases. In this study, IL-37b showed remarkable in vitro suppression of inflammatory tumor necrosis factor-α, IL-1β, IL-6, CCL2, and CXCL8 production in the coculture of human primary eosinophils and human bronchial epithelial BEAS-2B cells with the stimulation of bacterial toll-like receptor-2 ligand peptidoglycan, while antagonizing the activation of intracellular nuclear factor-κB, PI3K–Akt, extracellular signal-regulated kinase 1/2, and suppressing the gene transcription of allergic inflammation-related PYCARD, S100A9, and CAMP as demonstrated by flow cytometry, RNA-sequencing, and bioinformatics. Results therefore elucidated the novel anti-inflammation-related molecular mechanisms mediated by IL-37b. Using the house dust mite (HDM)-induced humanized asthmatic NOD/SCID mice for preclinical study, intravenous administration of IL-37b restored the normal plasma levels of eosinophil activators CCL11 and IL-5, suppressed the elevated concentrations of Th2 and asthma-related cytokines IL-4, IL-6, and IL-13 and inflammatory IL-17, CCL5, and CCL11 in lung homogenate of asthmatic mice. Histopathological results of lung tissue illustrated that IL-37b could mitigate the enhanced mucus, eosinophil infiltration, thickened airway wall, and goblet cells. Together with similar findings using the ovalbumin- and HDM-induced allergic asthmatic mice further validated the therapeutic potential of IL-37b in allergic asthma. The above results illustrate the novel IL-37-mediated regulation of intracellular inflammation mechanism linking bacterial infection and the activation of human eosinophils and confirm the in vivo anti-inflammatory activity of IL-37b on human allergic asthma.
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Affiliation(s)
- Jing Zhu
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Jie Dong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Lu Ji
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Peiyong Jiang
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Ting Fan Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Dehua Liu
- Institute of Chinese Medicine, State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Lai Guan Ng
- Singapore Immunology Network, Singapore, Singapore
| | - Miranda Sin-Man Tsang
- Institute of Chinese Medicine, State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Delong Jiao
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Christopher Wai-Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
| | - Chun-Kwok Wong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, Hong Kong.,Institute of Chinese Medicine, State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
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661
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Salvi M, Molinari F. Multi-tissue and multi-scale approach for nuclei segmentation in H&E stained images. Biomed Eng Online 2018; 17:89. [PMID: 29925379 PMCID: PMC6011253 DOI: 10.1186/s12938-018-0518-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 06/12/2018] [Indexed: 02/04/2023] Open
Abstract
Background Accurate nuclei detection and segmentation in histological images is essential for many clinical purposes. While manual annotations are time-consuming and operator-dependent, full automated segmentation remains a challenging task due to the high variability of cells intensity, size and morphology. Most of the proposed algorithms for the automated segmentation of nuclei were designed for specific organ or tissues. Results The aim of this study was to develop and validate a fully multiscale method, named MANA (Multiscale Adaptive Nuclei Analysis), for nuclei segmentation in different tissues and magnifications. MANA was tested on a dataset of H&E stained tissue images with more than 59,000 annotated nuclei, taken from six organs (colon, liver, bone, prostate, adrenal gland and thyroid) and three magnifications (10×, 20×, 40×). Automatic results were compared with manual segmentations and three open-source software designed for nuclei detection. For each organ, MANA obtained always an F1-score higher than 0.91, with an average F1 of 0.9305 ± 0.0161. The average computational time was about 20 s independently of the number of nuclei to be detected (anyway, higher than 1000), indicating the efficiency of the proposed technique. Conclusion To the best of our knowledge, MANA is the first fully automated multi-scale and multi-tissue algorithm for nuclei detection. Overall, the robustness and versatility of MANA allowed to achieve, on different organs and magnifications, performances in line or better than those of state-of-art algorithms optimized for single tissues.
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Affiliation(s)
- Massimo Salvi
- Biolab, Department of Electronics and Telecomunications, Politecnico di Torino, 10129, Turin, Italy.
| | - Filippo Molinari
- Biolab, Department of Electronics and Telecomunications, Politecnico di Torino, 10129, Turin, Italy
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662
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Han B, Jiang P, Liu W, Xu H, Li Y, Li Z, Ma H, Yu Y, Li X, Ye X. Role of Daucosterol Linoleate on Breast Cancer: Studies on Apoptosis and Metastasis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6031-6041. [PMID: 29878766 DOI: 10.1021/acs.jafc.8b01387] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The antitumor property of steroids in sweet potato ( Ipomoea batatas L.) remains poorly understood. Herein, we investigated the anticancer effect on breast carcinoma of daucosterol linoleate (DL), a steroid isolated from sweet potato. DL inhibited the cell viability of estrogen receptor (ER)-positive MCF-7 breast cancer cells at an IC50 value of 53.27 ± 9.02 μg/mL, while the effect was modest in ER-negative MDA-MB-231 breast cancer cells. Flow cytometry indicated that the DL-induced apoptosis in MCF-7 cells is dose-dependent. However, DL inhibited tumor growth and tumor weight at 100 mg/kg in MCF-7 xenograft nude mice. DL diminished the expression of Bcl-xl, Bcl-2, and XIAP, while increasing Bax, Bad, and activated caspase-dependent apoptosis in tumor tissues. Furthermore, DL inactivated the upstream Pi3k/Akt/NF-κB pathway. In the 4T1 spontaneous metastasis model, DL blocked metastasis progression, decreased the number of visible metastasis foci and inhibited metastasis size distribution in lung tissue. Further studies showed that DL suppressed VEGF, MMP 2, and MMP 9 expression in both tumor and lung tissues. From these results, we can assume that DL is a potential adjuvant therapy for ER-positive breast cancer patients.
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Affiliation(s)
- Bing Han
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Pu Jiang
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Wuyang Liu
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Heshan Xu
- Chongqing Engineering Research Centre for Sweet Potato, School of Life Sciences , Southwest University , Chongqing 400715 , China
| | - Yuanfeng Li
- Chongqing Engineering Research Centre for Sweet Potato, School of Life Sciences , Southwest University , Chongqing 400715 , China
| | - Zhaoxing Li
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Hang Ma
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Yang Yu
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Xuegang Li
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Xiaoli Ye
- Chongqing Engineering Research Centre for Sweet Potato, School of Life Sciences , Southwest University , Chongqing 400715 , China
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663
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Zhang S, Li B, Tang W, Ni L, Ma H, Lu M, Meng Q. Effects of connective tissue growth factor on prostate cancer bone metastasis and osteoblast differentiation. Oncol Lett 2018; 16:2305-2311. [PMID: 30008933 PMCID: PMC6036428 DOI: 10.3892/ol.2018.8960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 09/22/2017] [Indexed: 12/11/2022] Open
Abstract
Previous studies have demonstrated that connective tissue growth factor (CTGF) is expressed at increased levels in prostate cancer bone metastasis mouse models and patients with prostate cancer which metastasizes to the bone; however, the underlying molecular mechanism(s) remain unknown. The present study investigated the function of CTGF in osteoblast differentiation and its effect on prostate cancer bone metastasis by analyzing CTGF gene expression and transcription at different levels of invasion, metastasis of prostate cancer cells, and the influence of CTGF on proliferation and xenotransplantation. A mouse model demonstrating bone metastasis was used to investigate the function(s) of CTGF in bone metastasis and osteoblast differentiation. Results demonstrated that CTGF expression was increased in association with high bone metastasis in prostate cancer cells, and its expression was significantly decreased in whole cell lysates. CTGF expression in prostate cancer cells with high levels of bone metastasis was increased 1.9-fold compared with prostate cancer cells with low levels of bone metastasis. The expression of CTGF in mesenchymal cells was markedly increased compared with epithelial cells. Results indicated that the increased expression of CTGF does not affect the proliferation of tumor cells and possesses no influence on tumor volume. Control and CTGF plasmids were transfected into RM1 cells and led to 4 and 17% bone lesions, respectively. Increased expression of CTGF significantly enlarged the tumor area in the bone metastatic position compared with the control. Positive areas of alkaline phosphatase were significantly decreased as the concentration of CTGF increased. The results of the present study demonstrated that CTGF promotes prostate carcinoma to metastasize in the bone by dysregulating osteoblast differentiation.
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Affiliation(s)
- Shuangli Zhang
- Department of Orthopaedic Surgery, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Baolin Li
- Department of Orthopaedic Surgery, Harbin The First Hospital, Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Wei Tang
- Department of Orthopaedic Surgery, The Second People's Hospital of Rizhao, Rizhao, Shandong 276807, P.R. China
| | - Linying Ni
- Department of Orthopaedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150081, P.R. China
| | - Huili Ma
- Department of Orthopaedic Surgery, Binzhou Medical University Hospital, Binzhou, Shandong 256603, P.R. China
| | - Ming Lu
- Department of Oncological Surgery, The First Hospital of Qiqihaer City, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Qinggang Meng
- Department of Orthopaedic Surgery, Harbin The First Hospital, Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
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664
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Cho J, Kweon HS, Huh SO, Sadra A. Augmented reduction in colonic inflammatory markers of dextran sulfate sodium-induced colitis with a combination of 5-aminosalicylic acid and AD-lico™ from Glycyrrhiza inflata. Anim Cells Syst (Seoul) 2018; 22:189-196. [PMID: 30460097 PMCID: PMC6138317 DOI: 10.1080/19768354.2018.1476409] [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: 01/18/2018] [Revised: 04/02/2018] [Accepted: 04/09/2018] [Indexed: 12/13/2022] Open
Abstract
The primary aim of this study was to determine whether the oral administration of AD-lico™, a functional extract from Glycyrrhiza inflata in combination with 5-aminosalicylic acid (5-ASA) could ameliorate the inflammatory symptoms in dextran sulfate sodium (DSS)-induced colitis in rodents. This DSS rodent model is used to study drug candidates for colitis, as part of the spectrum of diseases falling under the inflammatory bowel disease (IBD) category. Here, with oral AD-lico™ administration, there was a substantial disruption of the colonic architectural changes due to DSS and a significant reduction in colonic myeloperoxidase (MPO) activity, a marker of colitis. In the same samples, there were also reduced levels of colonic and serum IL-6 in the oral AD-lico™ treated rats. This study also addressed the possible mechanisms for AD-lico™ mediated changes on colonic inflammation markers. These included the observations that AD-lico™ dampened the IL-6 proinflammatory-signaling pathway in THP-1 human monocytic cells and reduced the TNFα-mediated upregulation of surface adhesion molecule ICAM-1 in human umbilical vein endothelial cells (HUVECs). Finally, it was shown that AD-lico™ could be combined with 5-ASA in reducing the inflammatory markers for colorectal sites affected by colitis, a first study of its kind for a combination therapy.
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Affiliation(s)
| | | | - Sung-Oh Huh
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Ali Sadra
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Korea.,ADbiotech Co. Ltd, Chuncheon, Korea
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665
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Metovic J, Bertero L, Musuraca C, Veneziano F, Annaratone L, Mariani S, Cassoni P, Bussolati G, Papotti M. Safe transportation of formalin-fixed liquid-free pathology specimens. Virchows Arch 2018; 473:105-113. [DOI: 10.1007/s00428-018-2383-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/07/2018] [Accepted: 05/21/2018] [Indexed: 12/12/2022]
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666
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Namkung J, Shong KE, Kim H, Oh CM, Park S, Kim H. Inhibition of Serotonin Synthesis Induces Negative Hepatic Lipid Balance. Diabetes Metab J 2018; 42:233-243. [PMID: 29885107 PMCID: PMC6015967 DOI: 10.4093/dmj.2017.0084] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/14/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Hepatic steatosis is caused by metabolic stress associated with a positive lipid balance, such as insulin resistance and obesity. Previously we have shown the anti-obesity effects of inhibiting serotonin synthesis, which eventually improved insulin sensitivity and hepatic steatosis. However, it is not clear whether serotonin has direct effect on hepatic lipid accumulation. Here, we showed the possibility of direct action of serotonin on hepatic steatosis. METHODS Mice were treated with para-chlorophenylalanine (PCPA) or LP-533401 to inhibit serotonin synthesis and fed with high fat diet (HFD) or high carbohydrate diet (HCD) to induce hepatic steatosis. Hepatic triglyceride content and gene expression profiles were analyzed. RESULTS Pharmacological and genetic inhibition of serotonin synthesis reduced HFD-induced hepatic lipid accumulation. Furthermore, short-term PCPA treatment prevented HCD-induced hepatic steatosis without affecting glucose tolerance and browning of subcutaneous adipose tissue. Gene expression analysis revealed that the expressions of genes involved in de novo lipogenesis and triacylglycerol synthesis were downregulated by short-term PCPA treatment as well as long-term PCPA treatment. CONCLUSION Short-term inhibition of serotonin synthesis prevented hepatic lipid accumulation without affecting systemic insulin sensitivity and energy expenditure, suggesting the direct steatogenic effect of serotonin in liver.
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Affiliation(s)
- Jun Namkung
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
- Department of Biochemistry, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Ko Eun Shong
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
- Biomedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Hyeongseok Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Chang Myung Oh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Sangkyu Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
- Department of Biochemistry, Catholic Kwandong University College of Medicine, Gangneung, Korea.
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
- Biomedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology, Daejeon, Korea.
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667
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Pittala S, Krelin Y, Shoshan-Barmatz V. Targeting Liver Cancer and Associated Pathologies in Mice with a Mitochondrial VDAC1-Based Peptide. Neoplasia 2018; 20:594-609. [PMID: 29747160 PMCID: PMC5994780 DOI: 10.1016/j.neo.2018.02.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/30/2018] [Accepted: 02/06/2018] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is the third most lethal cancer worldwide. Despite progress in identifying risk factors, the incidence of HCC is increasing. Moreover, therapeutic options are limited and survival is poor. Therefore, alternative and innovative therapeutic strategies are urgently required. R-Tf-D-LP4, a cell-penetrating peptide derived from the mitochondrial multifunctional protein the voltage-dependent anion channel (VDAC1), is identified here as a highly effective liver cancer treatment. Recently, we demonstrated that R-Tf-D-LP4 induced apoptosis and inhibited tumor growth in mouse models. We now demonstrate that R-Tf-D-LP4 induced apoptosis in cancer liver-derived cell lines and inhibited tumor growth in three different liver cancer mouse models. These included diethylnitrosamine (DEN)-induced HCC, metabolically high-fat diet-induced HCC, and using a subcutaneous HepG2 cell xenograft model. Intravenous injection of the peptide into tumor-carrying DEN-treated mice resulted in dose-dependent inhibition of tumor growth up to complete tumor elimination. TUNEL staining of liver sections demonstrated peptide-induced apoptosis. Hematoxylin/eosin and Sirius red staining of liver sections showed decreased fibrotic formation. Immunohistochemical staining demonstrated reduced numbers of α-SMA-expressing cells in R-Tf-D-LP4-treated mouse livers. Additionally, macrophage presence in liver tissue was reduced in R-Tf-D-LP4-treated mice. Liver sections from DEN-treated mice showed steatohepatic pathology, reflected as fatty liver, inflammation, ballooning degeneration, and fibrosis; all were eliminated upon peptide treatment. Peptide treatment also inhibited tumor development in a nonalcoholic steatohepatitis-hepatocellular carcinoma mouse model induced by HFD. In HepG2 subcutaneous tumor xenografts, R-Tf-D-LP4 inhibited tumor growth. CONCLUSION These results show that the VDAC1-based peptide R-Tf-D-LP4 has multiple effects on liver cancer cells, leading to impairment of cell energy and metabolism homeostasis, induction of apoptosis, and elimination of liver cancer-associated processes, and thus represents a promising therapeutic approach for liver cancer.
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Key Words
- vdac1, voltage-dependent anion channel 1
- hk, hexokinase
- cyto c, cytochrome c
- den, diethylnitrosamine
- hcc, hepatocellular carcinoma
- hfd, high fat diet
- aif, apoptosis-inducing factor
- ldh, lactate dehydrogenase
- nash, nonalcoholic steatohepatitis
- tfr, transferrin receptor
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Affiliation(s)
- Srinivas Pittala
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Yakov Krelin
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Varda Shoshan-Barmatz
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel.
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668
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Khandelwal P, Alam A, Choksi A, Chattopadhyay S, Poddar P. Retention of Anticancer Activity of Curcumin after Conjugation with Fluorescent Gold Quantum Clusters: An in Vitro and in Vivo Xenograft Study. ACS OMEGA 2018; 3:4776-4785. [PMID: 30023902 PMCID: PMC6045371 DOI: 10.1021/acsomega.8b00113] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/23/2018] [Indexed: 05/05/2023]
Abstract
Gold nanoparticles (Au NPs) have been thoroughly investigated for anti-cancer therapy. However, their undesired high gold content remains a problem when injected into the body for drug delivery applications. In this report, we made an effort to conjugate the curcumin molecules on the surface of gold quantum clusters (Au QCs) by a novel in situ synthesis method which provides an alternative route to not only reduce the metallic content but also increase the water solubility of curcumin and the loading efficiency. Here, curcumin itself acts as a reducing and capping agent for the synthesis of Au QCs. The UV-vis absorption, fluorescence, transmission electron microscopy, and electrospray ionization mass spectrometry results confirmed the synthesis of fluorescent Au QCs. Curcumin-conjugated Au NPs (C-Au NPs) and glutathione (GSH)-conjugated Au QCs (GSH-Au QCs) were also synthesized to visualize the effect of particle size and the capping agent, respectively, on the cytotoxicity to normal and cancer cells. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay showed that the curcumin-conjugated Au QCs (C-Au QCs) were less cytotoxic to normal cells while almost the same cytotoxic to cancer cells in comparison to curcumin itself, which indicates that curcumin preserves its anticancer property even after binding to the Au QCs. However, C-Au NPs and GSH-Au QCs did not show any cytotoxicity against the normal and cancer cells at the concentration used. The western blot assay indicated that C-Au QCs promote apoptosis in cancer cells. Further, the in vivo study on severe combined immunodeficiency mice showed that C-Au QCs also inhibited the tumor growth efficiently without showing significant toxicity to internal organs.
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Affiliation(s)
- Puneet Khandelwal
- Physical
& Materials Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Aftab Alam
- National
Center for Cell Science, Ganeshkhind, Pune 411 007, India
| | | | - Samit Chattopadhyay
- CSIR-Indian
Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Pankaj Poddar
- Physical
& Materials Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
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669
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Effect of Melatonin on Rat Heart Mitochondria in Acute Heart Failure in Aged Rats. Int J Mol Sci 2018; 19:ijms19061555. [PMID: 29882895 PMCID: PMC6032417 DOI: 10.3390/ijms19061555] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/16/2018] [Accepted: 05/16/2018] [Indexed: 12/25/2022] Open
Abstract
Excessive generation of reactive oxygen species (ROS) in mitochondria and the opening of the nonselective mitochondrial permeability transition pore are important factors that promote cardiac pathologies and dysfunction. The hormone melatonin (MEL) is known to improve the functional state of mitochondria via an antioxidant effect. Here, the effect of MEL administration on heart mitochondria from aged rats with acute cardiac failure caused by isoprenaline hydrochloride (ISO) was studied. A histological analysis revealed that chronic intake of MEL diminished the age-dependent changes in the structure of muscle fibers of the left ventricle, muscle fiber swelling, and injury zones characteristic of acute cardiac failure caused by ISO. In acute heart failure, the respiratory control index (RCI) and the Ca2+ retention capacity in isolated rat heart mitochondria (RHM) were reduced by 30% and 40%, respectively, and mitochondrial swelling increased by 34%. MEL administration abolished the effect of ISO. MEL partially prevented ISO-induced changes at the subunit level of respiratory complexes III and V and drastically decreased the expression of complex I subunit NDUFB8 both in control RHM and in RHM treated with ISO, which led to the inhibition of ROS production. MEL prevents the mitochondrial dysfunction associated with heart failure caused by ISO. It was shown that the level of 2′,3′-cyclicnucleotide-3′-phosphodiasterase (CNPase), which is capable of protecting cells in aging, increased in acute heart failure. MEL also retained the CNPase content in RHM both in control experiments and after ISO-induced heart damage. We concluded that an increase in the CNPase level promotes cardioprotection.
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670
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Mbiydzenyuy NE, Ninsiima HI, Valladares MB, Pieme CA. Zinc and linoleic acid pre-treatment attenuates biochemical and histological changes in the midbrain of rats with rotenone-induced Parkinsonism. BMC Neurosci 2018; 19:29. [PMID: 29739324 PMCID: PMC5941606 DOI: 10.1186/s12868-018-0429-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 04/25/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Studies have suggested the supplementation of Zinc and Linoleic acid in the management of neurodegenerative disorders but none has investigated the combined effects. Little is known about the neuroprotective effects of either Zinc or Linoleic acid or their combination against development of Parkinsonism. This study was designed to investigate the neuroprotective effects of Zinc and Linoleic acid in rotenone-induced Parkinsonism in rats. METHODS Thirty-six young adult female rats weighing 100-150 g divided into six groups were used. Rats were induced with Parkinsonism by subcutaneous administration of rotenone (2.5 mg/kg) once a day for seven consecutive days. The rats received dimethyl sulfoxide (DMSO)/Olive oil or rotenone dissolved in DMSO/Olive oil. Groups III and IV received Zinc (30 mg/kg) or Linoleic acid (150 µl/kg) while group V received a combination of both, 2 weeks prior to rotenone injection. Groups II and VI served as negative (rotenone group) and positive (Levodopa groups) controls respectively. Oxidative stress levels were assessed by estimating Lipid peroxidation (MDA), total antioxidant capacity, Superoxide dismutase, reduced Glutathione (GSH), glutathione peroxidase and catalase in the midbrain. Histological examination was done to assess structural changes in the midbrain. RESULTS There was a significant prevention in lipid peroxidation and decrease in the antioxidant status in intervention-treated groups as compared to the rotenone treated group. In addition, histological examination revealed that Parkinsonian rat brains exhibited neuronal damage. Cell death and reduction in neuron size induced by rotenone was prevented by treatment with zinc, linoleic acid and their combination. CONCLUSION These results suggest that zinc and linoleic acid and their combination showed significant neuroprotective activity most likely due to the antioxidant effect.
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Affiliation(s)
- Ngala Elvis Mbiydzenyuy
- Department of Physiology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, Ishaka, Uganda
- Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaounde, Cameroon
| | - Herbert Izo Ninsiima
- Department of Physiology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, Ishaka, Uganda
| | | | - Constant Anatole Pieme
- Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaounde, Cameroon
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671
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Increased Piezo1 channel activity in interstitial Cajal-like cells induces bladder hyperactivity by functionally interacting with NCX1 in rats with cyclophosphamide-induced cystitis. Exp Mol Med 2018; 50:1-16. [PMID: 29735991 PMCID: PMC5938236 DOI: 10.1038/s12276-018-0088-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/31/2018] [Accepted: 02/14/2018] [Indexed: 12/21/2022] Open
Abstract
The Piezo1 channel is a mechanotransduction mediator, and Piezo1 abnormalities have been linked to several clinical disorders. However, the role of the Piezo1 channel in cystitis-associated bladder dysfunction has not been documented. The current study aimed to discover the functional role of this channel in regulating bladder activity during cyclophosphamide (CYP)-induced cystitis. One hundred four female rats were randomly assigned to the control, CYP-4h, CYP-48h and CYP-8d groups. CYP successfully induced acute or chronic cystitis in these rats. CYP treatment for 48h or 8d significantly increased Piezo1 channel expression in bladder interstitial Cajal-like cells (ICC-LCs), and the increase in CYP-8d rats was more prominent. In addition, 2.5 μM Grammostola spatulata mechanotoxin 4 (GsMTx4) significantly attenuated bladder hyperactivity in CYP-8d rats by inhibiting the Piezo1 channel in bladder ICC-LCs. Furthermore, by using GsMTx4 and siRNA targeting the Piezo1 channel, we demonstrated that hypotonic stress-induced Piezo1 channel activation significantly triggered Ca2+ and Na+ influx into bladder ICC-LCs during CYP-induced chronic cystitis. In addition, the Piezo1 channel functionally interacted with the relatively activated reverse mode of Na+/Ca2+ exchanger 1 (NCX1) in bladder ICC-LCs from CYP-8d rats. In conclusion, we suggest that the functional role of the Piezo1 channel in CYP-induced chronic cystitis is based on its synergistic effects with NCX1, which can significantly enhance [Ca2+]i and result in Ca2+ overload in bladder ICC-LCs, indicating that the Piezo1 channel and NCX1 are potential novel therapeutic targets for chronic cystitis-associated bladder hyperactivity. A protein that controls the passage of ions through cell membranes is implicated in interstitial cystitis/painful bladder syndrome (IC/PBS). This condition causes chronic pelvic pain and increased urinary frequency and urgency. Current treatment options are unsatisfactory. Researchers led by Longkun Li at the Third Military Medical University in Chongqing, China, and Mingjia Tan at the University of Michigan, Ann Arbor, USA, studied the role of this membrane channel protein, called Piezo1. Increased activity of Piezo1 was linked to bladder hyperactivity in rats with drug-induced cystitis. The research also identified a synergistic interaction between Piezo1 and a second membrane channel protein. A drug that inhibits Piezo1 activity reduced bladder hyperactivity in the rats. Drugs targeting these two proteins might help to treat the chronic cystitis of patients with IC/PBS.
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672
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Gamma-enolase predicts lung damage in severe acute pancreatitis-induced acute lung injury. J Mol Histol 2018; 49:347-356. [PMID: 29728894 DOI: 10.1007/s10735-018-9774-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/02/2018] [Indexed: 12/18/2022]
Abstract
Severe acute pancreatitis (SAP) associated acute lung injury (ALI) accounts for about 70% mortality of SAP patients. However, there are no precise biomarkers for the disease currently. Herein, we evaluated the potential of gamma-enolase (ENO2), against its universal isoform alpha-enolase (ENO1), as a marker of SAP-ALI in a rat model. Firstly, 16 male Sprague-Dawley rats were randomly divided into two groups, Sham (n = 8) and SAP-ALI (n = 8), for pancreatitis induction. Ultra-structure examination by electron microscopy and HE staining were used for lung injury assessment. Lung tissue expressions of alpha-enolase and gamma-enolase were evaluated by qRT-PCR and immunohistochemistry. In a prospective validation experiment, 28 rats were used: sham (n = 8), SAP-ALI at 3 h (3 h, n = 10), and SAP-ALI at 24 h (24 h, n = 10). Lung tissue damage, tissue expression and circulating alpha-enolase and gamma-enolase levels were evaluated. Elevated serum levels of α-amylase and TNF-α were observed in SAP rats but not in sham-operated rats. Histological examination of pancreatic and lung tissues indicated marked damage in SAP rats. While alpha-enolase was universally expressed, gamma-enolase was expressed only in damaged lung tissues. Gamma-enolase was detected in lung tissues, BALF, and serum as early as 3 h post-surgery when physical pathological damage was not apparent. Unlike alpha-enolase, secreted and/or circulating gamma-enolase level progressively increased, especially in serum, as lung damage progressed. Thus, gamma-enolase may signal and correlate lung tissue damage well before obvious physical pathological tissue damage and might be a candidate diagnostic and/or prognostic marker.
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673
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Majeed H, Nguyen TH, Kandel ME, Kajdacsy-Balla A, Popescu G. Label-free quantitative evaluation of breast tissue using Spatial Light Interference Microscopy (SLIM). Sci Rep 2018; 8:6875. [PMID: 29720678 PMCID: PMC5932029 DOI: 10.1038/s41598-018-25261-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 04/03/2018] [Indexed: 11/16/2022] Open
Abstract
Breast cancer is the most common type of cancer among women worldwide. The standard histopathology of breast tissue, the primary means of disease diagnosis, involves manual microscopic examination of stained tissue by a pathologist. Because this method relies on qualitative information, it can result in inter-observer variation. Furthermore, for difficult cases the pathologist often needs additional markers of malignancy to help in making a diagnosis, a need that can potentially be met by novel microscopy methods. We present a quantitative method for label-free breast tissue evaluation using Spatial Light Interference Microscopy (SLIM). By extracting tissue markers of malignancy based on the nanostructure revealed by the optical path-length, our method provides an objective, label-free and potentially automatable method for breast histopathology. We demonstrated our method by imaging a tissue microarray consisting of 68 different subjects −34 with malignant and 34 with benign tissues. Three-fold cross validation results showed a sensitivity of 94% and specificity of 85% for detecting cancer. Our disease signatures represent intrinsic physical attributes of the sample, independent of staining quality, facilitating classification through machine learning packages since our images do not vary from scan to scan or instrument to instrument.
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Affiliation(s)
- Hassaan Majeed
- Quantitative Light Imaging (QLI) Lab, Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana Champaign, 405 N Matthews, Urbana, IL 61801, USA
| | - Tan Huu Nguyen
- Quantitative Light Imaging (QLI) Lab, Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana Champaign, 405 N Matthews, Urbana, IL 61801, USA
| | - Mikhail Eugene Kandel
- Quantitative Light Imaging (QLI) Lab, Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana Champaign, 405 N Matthews, Urbana, IL 61801, USA
| | - Andre Kajdacsy-Balla
- Department of Pathology, University of Illinois at Chicago, 840 South Wood Street, Suite 130 CSN, Chicago, IL 60612, USA
| | - Gabriel Popescu
- Quantitative Light Imaging (QLI) Lab, Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana Champaign, 405 N Matthews, Urbana, IL 61801, USA.
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674
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Parida PK, Mahata B, Santra A, Chakraborty S, Ghosh Z, Raha S, Misra AK, Biswas K, Jana K. Inhibition of cancer progression by a novel trans-stilbene derivative through disruption of microtubule dynamics, driving G2/M arrest, and p53-dependent apoptosis. Cell Death Dis 2018; 9:448. [PMID: 29670107 PMCID: PMC5906627 DOI: 10.1038/s41419-018-0476-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 01/15/2018] [Accepted: 01/19/2018] [Indexed: 01/02/2023]
Abstract
Resveratrol, a trans-stilbene polyphenolic compound and its synthetic analogs are widely used bioactive molecules due to their remarkable chemo-preventive potential. Here, we have identified a novel synthetic trans-stilbene compound, Z-DAN-11 ((Z)-3-(3, 4-dimethoxyphenyl)-2-(3, 4, 5-trimethoxyphenyl) acrylonitrile) which shows remarkable efficacy in blocking tumor growth and progression both in vitro and in vivo. Z-DAN-11 inhibits proliferation of cancer cells in vitro through microtubule depolymerization that induced G2/M arrest and consequently leads to apoptotic cell death. More importantly, Z-DAN-11 shows limited cytotoxicity to normal cells as compared to cancer cells. Quite interestingly, we have found that Z-DAN-11-mediated ROS production helps in dramatic alteration in the mitochondrial redox status which critically contributes to the apoptosis. Mechanistic studies reveal that Z-DAN-11 induces the expression of pro-apoptotic proteins and decreases anti-apoptotic protein expression that decisively helps in the activation of caspase 8, caspase 9, and caspase 3, leading to cleavage of PARP1 and cell death via intrinsic and extrinsic pathways of apoptosis. Moreover, Z-DAN-11-mediated apoptosis of cancer cells is through a partial p53-dependent pathway, since both HCT116 p53-/- cells as well as p53-silenced cells (siRNA) were able to block apoptosis partially but significantly. Importantly, Z-DAN-11 also imparts its anti-tumorigenic effect by inhibiting clonogenic property and anchorage-independent growth potential of cancer cells at concentrations at least 10 times lower than that required for inducing apoptosis. Finally, in vivo study with immuno-competent syngeneic mice shows Z-DAN-11 to be able to impede tumor progression without any adverse side-effects. Hence, we identified a novel, synthetic trans-stilbene derivative with anti-tumorigenic potential which might tremendously help in devising potential therapeutic strategy against cancer.
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Affiliation(s)
- Pravat Kumar Parida
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India
| | - Barun Mahata
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India
| | - Abhisek Santra
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India
| | - Sohini Chakraborty
- The Bioinformatics Center, Bose Institute, Kolkata, West Bengal, 700054, India
| | - Zhumur Ghosh
- The Bioinformatics Center, Bose Institute, Kolkata, West Bengal, 700054, India
| | | | - Anup Kumar Misra
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India
| | - Kaushik Biswas
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India.
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, P1/12, C.I.T. Scheme VIIM, Kolkata, West Bengal, 700054, India.
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675
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Wang Y, Tang W, Yang P, Shin H, Li Q. Hepatic NPC1L1 promotes hyperlipidemia in LDL receptor deficient mice. Biochem Biophys Res Commun 2018; 499:626-633. [DOI: 10.1016/j.bbrc.2018.03.200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 03/27/2018] [Indexed: 10/17/2022]
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676
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Influence of Eimeria falciformis Infection on Gut Microbiota and Metabolic Pathways in Mice. Infect Immun 2018; 86:IAI.00073-18. [PMID: 29440368 DOI: 10.1128/iai.00073-18] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 02/07/2023] Open
Abstract
Coccidiosis, caused by different species of Eimeria parasites, is an economically important disease of poultry and livestock worldwide. Here we report previously unknown alterations in the gut microbes and metabolism of BALB/c mice infected with Eimeria falciformis Specifically, we observed a significant shift in the abundance of cecal bacteria and disrupted metabolism in parasitized animals. The relative abundances of Lachnospiraceae bacterium NK4A136, Ruminiclostridium, Alistipes, and Lactobacillus declined in response to E. falciformis infection, whereas Escherichia, Shigella, Helicobacter, Klebsiella, and Bacteroides were increased. Carbohydrate and amino acid metabolites in the serum samples of infected mice were significantly altered compared to naïve controls. Levels of amino acids, including asparagine, histidine, l-cysteine, tryptophan, lysine, glycine, serine, alanine, proline, ornithine, methionine, and valine, decreased on day 7 postinfection before returning to baseline on day 14. In addition, increased levels of indolelactate and mannitol and a reduced amount of oxalic acid indicated impaired carbon metabolism upon parasitic infection. These data demonstrate that intestinal coccidial infection perturbs the microbiota and disrupts carbon and nitrogen metabolism.
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677
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Loeser K, Seemann S, König S, Lenhardt I, Abdel-Tawab M, Koeberle A, Werz O, Lupp A. Protective Effect of Casperome ®, an Orally Bioavailable Frankincense Extract, on Lipopolysaccharide- Induced Systemic Inflammation in Mice. Front Pharmacol 2018; 9:387. [PMID: 29731716 PMCID: PMC5921439 DOI: 10.3389/fphar.2018.00387] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/04/2018] [Indexed: 12/12/2022] Open
Abstract
Introduction: Despite recent advances in critical care, sepsis remains a crucial cause of morbidity and mortality in intensive care units. Therefore, the identification of new therapeutic strategies is of great importance. Since ancient times, frankincense is used in traditional medicine for the treatment of chronic inflammatory disorders such as rheumatoid arthritis. Thus, the present study intends to evaluate if Casperome® (Casp), an orally bioavailable soy lecithin-based formulation of standardized frankincense extract, is able to ameliorate systemic effects and organ damages induced by severe systemic inflammation using a murine model of sepsis, i.e., intraperitoneal administration of lipopolysaccharides (LPS). Methods: Male 60-day-old mice were assigned to six treatment groups: (1) control, (2) LPS, (3) soy lecithin (blank lecithin without frankincense extract), (4) Casp, (5) soy lecithin plus LPS, or (6) Casp plus LPS. Soy lecithin and Casp were given 3 h prior to LPS treatment; 24 h after LPS administration, animals were sacrificed and health status and serum cytokine levels were evaluated. Additionally, parameters representing liver damage or liver function and indicating oxidative stress in different organs were determined. Furthermore, markers for apoptosis and immune cell redistribution were assessed by immunohistochemistry in liver and spleen. Results: LPS treatment caused a decrease in body temperature, blood glucose levels, liver glycogen content, and biotransformation capacity along with an increase in serum cytokine levels and oxidative stress in various organs. Additionally, apoptotic processes were increased in spleen besides a pronounced immune cell infiltration in both liver and spleen. Pretreatment with Casp significantly improved health status, blood glucose values, and body temperature of the animals, while serum levels of pro-inflammatory cytokines and oxidative stress in all organs tested were significantly diminished. Finally, apoptotic processes in spleen, liver glycogen loss, and immune cell infiltration in liver and spleen were distinctly reduced. Casp also appears to induce various cytochromeP450 isoforms, thus causing re-establishment of liver biotransformation capacity in LPS-treated mice. Conclusion: Casp displayed anti-inflammatory, anti-oxidative, and hepatoprotective effects. Thus, orally bioavailable frankincense extracts may serve as a new supportive treatment option in acute systemic inflammation and accompanied liver dysfunction.
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Affiliation(s)
- Konstantin Loeser
- Institute of Pharmacology and Toxicology, Jena University Hospital, Jena, Germany.,Chair of Pharmaceutical Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Semjon Seemann
- Institute of Pharmacology and Toxicology, Jena University Hospital, Jena, Germany
| | - Stefanie König
- Chair of Pharmaceutical Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Isabell Lenhardt
- Institute of Pharmacology and Toxicology, Jena University Hospital, Jena, Germany
| | | | - Andreas Koeberle
- Chair of Pharmaceutical Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Oliver Werz
- Chair of Pharmaceutical Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Jena, Germany
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678
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Guastella AR, Michelhaugh SK, Klinger NV, Fadel HA, Kiousis S, Ali-Fehmi R, Kupsky WJ, Juhász C, Mittal S. Investigation of the aryl hydrocarbon receptor and the intrinsic tumoral component of the kynurenine pathway of tryptophan metabolism in primary brain tumors. J Neurooncol 2018; 139:239-249. [PMID: 29667084 DOI: 10.1007/s11060-018-2869-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/11/2018] [Indexed: 01/14/2023]
Abstract
INTRODUCTION There is mounting evidence supporting the role of tryptophan metabolism via the kynurenine pathway (KP) in the pathogenesis of primary brain tumors. Under normal physiological conditions, the KP is the major catabolic pathway for the essential amino acid tryptophan. However, in cancer cells, the KP becomes dysregulated, depletes local tryptophan, and contributes to an immunosuppressive tumor microenvironment. METHODS We examined the protein expression levels (in 73 gliomas and 48 meningiomas) of the KP rate-limiting enzymes indoleamine 2,3-dioxygenase (IDO) 1, IDO2, and tryptophan 2,3-dioxygenase (TDO2), as well as, the aryl hydrocarbon receptor (AhR), a carcinogenic transcription factor activated by KP metabolites. In addition, we utilized commercially available small-molecules to pharmacologically modulate IDO1, IDO2, TDO2, and AhR in patient-derived glioma and meningioma cell lines (n = 9 each). RESULTS We observed a positive trend between the grade of the tumor and the average immunohistochemical staining score for IDO1, IDO2, and TDO2, with TDO2 displaying the strongest immunostaining. AhR immunostaining was present in all grades of gliomas and meningiomas, with the greatest staining intensity noted in glioblastomas. Immunocytochemical staining showed a positive trend between nuclear localization of AhR and histologic grade in both gliomas and meningiomas, suggesting increased AhR activation with higher tumor grade. Unlike enzyme inhibition, AhR antagonism markedly diminished patient-derived tumor cell viability, regardless of tumor type or grade, following in vitro drug treatments. CONCLUSIONS Collectively, these results suggest that AhR may offer a novel and robust therapeutic target for a patient population with highly limited treatment options.
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Affiliation(s)
- Anthony R Guastella
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
- Department of Oncology, Wayne State University, Detroit, MI, USA
| | | | - Neil V Klinger
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
| | - Hassan A Fadel
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
| | - Sam Kiousis
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
| | - Rouba Ali-Fehmi
- Department of Oncology, Wayne State University, Detroit, MI, USA
- Department of Pathology, Wayne State University, Detroit, MI, USA
| | - William J Kupsky
- Department of Oncology, Wayne State University, Detroit, MI, USA
- Department of Pathology, Wayne State University, Detroit, MI, USA
| | - Csaba Juhász
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
- Department of Neurology, Wayne State University, Detroit, MI, USA
- Department of Pediatrics, Wayne State University, Detroit, MI, USA
- PET Center and Translational Imaging Laboratory, Children's Hospital of Michigan, Detroit, MI, USA
- Karmanos Cancer Institute, Detroit, MI, USA
| | - Sandeep Mittal
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA.
- Department of Oncology, Wayne State University, Detroit, MI, USA.
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA.
- Karmanos Cancer Institute, Detroit, MI, USA.
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679
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Gupta S, Yadav K, Mantri SS, Singhal NK, Ganesh S, Sandhir R. Evidence for Compromised Insulin Signaling and Neuronal Vulnerability in Experimental Model of Sporadic Alzheimer’s Disease. Mol Neurobiol 2018; 55:8916-8935. [DOI: 10.1007/s12035-018-0985-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 02/28/2018] [Indexed: 02/07/2023]
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680
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Zhuo XH, Sun HC, Huang B, Yu HJ, Shan Y, Du AF. Evaluation of potential anti-toxoplasmosis efficiency of combined traditional herbs in a mouse model. J Zhejiang Univ Sci B 2018; 18:453-461. [PMID: 28585421 PMCID: PMC5482040 DOI: 10.1631/jzus.b1600316] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Toxoplasma gondii is a worldwide spread protozoan and is able to infect almost all warm-blood animals. No effective drugs are available clinically on toxoplasmosis. Chinese traditional herbal medicines have provided remedies for many health problems. There exists a possibility that Chinese herbs may provide protection against T. gondii. This work aims to assess the protective efficacy of combined Chinese herbs against T. gondii. We screened five herbal medicines that have different pharmacological effects and combined them into a prescription according to the traditional Chinese medicine compatibility principle. The drug potential and protective efficacy were evaluated through a mouse model by determining the survival time, the parasite load in blood and tissues, the change of cell proportions in blood and histological detection. The results showed that the survival time of mice in the 500 mg Chinese herbs group and sulfadiazine group was significantly longer than that of the PBS control group. Also the parasite load in blood and tissues of 500 mg Chinese herbs and sulfadiazine groups was significantly lower than that of PBS group at 7 days post infection (dpi), which was in accordance with the result of histological detection. Monocyte and neutrophil of infected mice were remarkably increased while lymphocyte was dramatically decreased compared to that of blank group at 7 dpi. The results demonstrated that the 500 mg dosage of our Chinese herbs could slow down the replication of T. gondii and prolong the survival time of mice and could be considered as possible candidate drug against toxoplasmosis.
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Affiliation(s)
- Xun-Hui Zhuo
- Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.,Department of Immunity and Biochemistry, Institute of Parasitic Disease, Zhejiang Academy of Medical Sciences, Hangzhou 310013, China
| | - Hong-Chao Sun
- Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bin Huang
- Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hai-Jie Yu
- Jiaxing Vocational & Technical College, Jiaxing 314000, China
| | - Ying Shan
- Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ai-Fang Du
- Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
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681
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Fetal extracellular matrix nerve wraps locally improve peripheral nerve remodeling after complete transection and direct repair in rat. Sci Rep 2018. [PMID: 29540763 PMCID: PMC5852088 DOI: 10.1038/s41598-018-22628-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In peripheral nerve (PN) injuries requiring surgical repair, as in PN transection, cellular and ECM remodeling at PN epineurial repair sites is hypothesized to reduce PN functional outcomes by slowing, misdirecting, or preventing axons from regrowing appropriately across the repair site. Herein this study reports on deriving and analyzing fetal porcine urinary bladder extracellular matrix (fUB-ECM) by vacuum assisted decellularization, fabricating fUBM-ECM nerve wraps, and testing fUB-ECM nerve wrap biocompatibility and bioactivity in a trigeminal, infraorbital nerve (ION) branch transection and direct end-to-end repair model in rat. FUB-ECM nerve wraps significantly improved epi- and endoneurial organization and increased both neovascularization and growth associated protein-43 (GAP-43) expression at PN repair sites, 28-days post surgery. However, the number of neurofilament positive axons, remyelination, and whisker-evoked response properties of ION axons were unaltered, indicating improved tissue remodeling per se does not predict axon regrowth, remyelination, and the return of mechanoreceptor cortical signaling. This study shows fUB-ECM nerve wraps are biocompatible, bioactive, and good experimental and potentially clinical devices for treating epineurial repairs. Moreover, this study highlights the value provided by precise, analytic models, like the ION repair model, in understanding how PN tissue remodeling relates to axonal regrowth, remyelination, and axonal response properties.
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682
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Cao Z, Zheng M, Lv H, Guo K, Zhang Y. Tissue expression of Toll-like receptors 2, 3, 4 and 7 in swine in response to the Shimen strain of classical swine fever virus. Mol Med Rep 2018; 17:7122-7130. [PMID: 29568891 PMCID: PMC5928672 DOI: 10.3892/mmr.2018.8734] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 06/01/2017] [Indexed: 11/06/2022] Open
Abstract
The Toll-like receptors (TLRs) of the innate immune system provide the host with the ability to detect and respond to viral infections. The present study aimed to investigate the mRNA and protein expression levels of TLR2, 3, 4 and 7 in porcine tissues upon infection with the highly virulent Shimen strain of classical swine fever virus (CSFV). Reverse transcription-quantitative polymerase chain reaction was used to detect the mRNA expression levels of CSFV and TLR, whereas western blotting was used to detect the expression levels of TLR proteins. In addition, tissues underwent histological examination and immunohistochemistry to reveal the histopathological alterations associated with highly virulent CSFV infection and to detect TLR antigens. Furthermore, porcine monocyte-derived macrophages (pMDMs) were prestimulated with peptidoglycan from Staphylococcus aureus (PGN-SA), polyinosinic-polycytidylic acid [poly (I:C)], lipopolysaccharide from Escherichia coli 055:B5 (LPS-B5) or imiquimod (R837) in order to analyze the association between TLR expression and CSFV replication. Following stimulation for 12 h (with TLR-specific ligands), cells were infected with CSFV Shimen strain. The results revealed that the expression levels of TLR2 and TLR4 were increased in the lung and kidney, but were decreased in the spleen and lymph nodes in response to CSFV. TLR3 was strongly expressed in the heart and slightly upregulated in the spleen in response to CSFV Shimen strain infection, and TLR7 was increased in all examined tissues in the presence of CSFV. Furthermore, R837 and LPS-B5 exerted inhibitory effects on CSFV replication in pMDMs, whereas PGN-SA and poly(I:C) had no significant effect. These findings highlight the potential role of TLR expression in the context of CSFV infection.
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Affiliation(s)
- Zhi Cao
- College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, P.R. China
| | - Minping Zheng
- College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, P.R. China
| | - Huifang Lv
- College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, P.R. China
| | - Kangkang Guo
- College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, P.R. China
| | - Yanming Zhang
- College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, P.R. China
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683
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Mo Z, Lu H, Mo S, Fu X, Chang S, Yue J. Ultrasound-guided radiofrequency ablation enhances natural killer-mediated antitumor immunity against liver cancer. Oncol Lett 2018; 15:7014-7020. [PMID: 29725428 PMCID: PMC5920230 DOI: 10.3892/ol.2018.8231] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 11/29/2017] [Indexed: 12/15/2022] Open
Abstract
For patients with liver cancer who are not sufficiently fit for surgical resection, radiofrequency ablation (RFA) is an effective and low risk treatment modality; however, the mechanism underlying this procedure is not fully understood. In the present study, a series of experiments were conducted, which demonstrated that RFA therapy stimulates innate antitumor immunity via directly enhancing natural killer (NK) cell cytotoxicity, thus achieving a favorable outcome for patients with liver tumors. It was determined that the percentage of NK cells within the peripheral blood of the rabbits in the RFA treatment groups were significantly higher, compared with the control groups. The levels of interferon-γ and tumor necrosis factor-α in NK cells were also significantly upregulated following thermal coagulation induced via RFA. In addition, RFA enhanced the NK cell receptor, NK group 2D (NKG2D), expression and NK cell antitumor cytotoxicity in hepatic cancer cells. The results indicated that the RFA treatment could effectively eliminate liver tumors via enhancing NK-mediated antitumor activity and NKG2D expression.
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Affiliation(s)
- Zelai Mo
- Department of Ultrasound, The Maternal and Child Health Hospital of Hainan, Haikou, Hainan 570206, P.R. China
| | - Hailan Lu
- Department of Respiratory Medicine, The Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Shaowei Mo
- Department of Science and Education, The Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Xiangmin Fu
- Department of Medical Records, The Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Shunwu Chang
- Department of General Surgery, The Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Jie Yue
- Department of Vascular Surgery, The Hainan General Hospital, Haikou, Hainan 570311, P.R. China
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684
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Kumar M, Choudhury Y, Ghosh SK, Mondal R. Application and optimization of minimally invasive cell-free DNA techniques in oncogenomics. Tumour Biol 2018; 40:1010428318760342. [PMID: 29484962 DOI: 10.1177/1010428318760342] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The conventional method of measuring biomarkers in malignant tissue samples has already given subversive growth in cancer diagnosis, prognosis, and therapy selection. However, the regression and heterogeneity associated with tumor tissue biopsy have urged for the development of an alternative approach. Considering the limitations, cell-free DNA has emerged as a surrogate alternative, facilitating preoperative chemoradiotherapy (p < 0.0001) treatment response in rectal cancer and detection of biomarker in lung cancer. This potential of cell-free DNA in several other cancers has yet to be explored based on clinical relevance by optimizing the preanalytical factors. This review has highlighted the crucial parameters from blood collection to cell-free DNA analysis that has a significant impact on the accuracy and reliability of clinical data. The quantity of cell-free DNA is also a limiting factor. Therefore, a proper preanalytical factor for blood collection, its stability, centrifugation speed, and plasma storage condition are to be optimized for developing cancer-specific biomarkers useful for clinical purpose. Liquid biopsy-based origin of cell-free DNA has revolutionized the area of cancer research. Lack of preanalytical and analytical procedures may be considered for identification of novel biomarkers through next-generation sequencing of tumor-originated cell-free DNA in contradiction to tissue biopsy for cancer-specific biomarkers.
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Affiliation(s)
- Manish Kumar
- 1 Department of Biotechnology, Assam University, Silchar, India
| | | | - Sankar Kumar Ghosh
- 1 Department of Biotechnology, Assam University, Silchar, India.,2 University of Kalyani, Kalyani, India
| | - Rosy Mondal
- 3 Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, India
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685
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Tolerance of chronic HDACi treatment for neurological, visceral and lung Niemann-Pick Type C disease in mice. Sci Rep 2018; 8:3875. [PMID: 29497113 PMCID: PMC5832807 DOI: 10.1038/s41598-018-22162-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 02/15/2018] [Indexed: 01/24/2023] Open
Abstract
Histone deacetylase (HDAC) inhibitors are of significant interest as drugs. However, their use to treat neurological disorders has raised concern because HDACs are required for brain function. We have previously shown that a triple combination formulation (TCF) of the pan HDACi vorinostat (Vo), 2-hydroxypropyl-beta-cyclodextrin (HPBCD) and polyethylene glycol (PEG) 400 improves pharmacokinetic exposure and entry of Vo into the brain. TCF treatment significantly delayed both neurodegeneration and death in the Npc1nmf164 murine model of Niemann-Pick Type C (NPC) disease. The TCF induces no metabolic toxicity, but its risk to normal brain functions and potential utility in treating lung disease, a major NPC clinical complication, remain unknown. Here we report that TCF administered in healthy mice for 8–10 months was not detrimental to the brain or neuromuscular functions based on quantitative analyses of Purkinje neurons, neuroinflammation, neurocognitive/muscular disease symptom progression, cerebellar/hippocampal nerve fiber-staining, and Hdac gene-expression. The TCF also improved delivery of Vo to lungs and reduced accumulation of foamy macrophages in Npc1nmf164 mice, with no injury. Together, these data support feasibility of tolerable, chronic administration of an HDACi formulation that treats murine NPC neurological disease and lung pathology, a frequent cause of death in this and possibly additional disorders.
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686
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Liu H, Pu Y, Xu Y, Xu H, Liu H, Cheng Y, Xu W, Chen X, Fan J. Olfactory-ensheathing cells promote physiological repair of injured recurrent laryngeal nerves and functional recovery of glottises in dogs. Mol Cell Biochem 2018; 446:115-125. [PMID: 29492839 DOI: 10.1007/s11010-018-3279-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/16/2018] [Indexed: 10/17/2022]
Abstract
The aim of this study was to investigate whether the transplantation of olfactory-ensheathing cells (OECs) could physiologically repair severely injured recurrent laryngeal nerve (RLN) in dogs. Adult Beagle dogs were surgically introduced with a 10-mm defect in the left RLN and transplanted with a nerve guide (NEUROLAC) containing dog olfactory mucosa-olfactory-ensheathing cells (OM-OECs) in matrigel. The effects of OM-OECs on the morphology, histology, and electrophysiology of the injured RLNs, glottis movement, and voice acoustics were comparatively studied. Two months after transplantation, the normal dogs (group N) had intact left RLNs that contained axons well organized as bundles, transmitted action potentials of high amplitudes without latent phases, and modulated glottis movement to produce normal voices. The RLN-damaged dogs transplanted with OM-OECs (group CTT) had pieces of nerves regenerated in the place of the defects, which contained fewer axons scattered in the internal nerve membrane and wrapped peripherally by the connective tissue, prevented the distal trunk of the defected RLN from shrinking, transmitted action potentials of lower amplitudes with latent phases, and modulated a slightly impaired glottis movement to produce voices with slight differences compared to the N dogs. The RLN-damaged dogs without OM-OECs (group NC) had no nerves generated at the defective or the damaged area, leading to a shrinkage in the enervated distal nerve trunks; a blockage in nerve pulse transit; a paralysis of the left vocal cords; an impaired glottis movement; and abnormal voices. Transplantation of OM-OECs promoted nerve regeneration, and the recoveries of glottises and voices in dogs with RLN injury.
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Affiliation(s)
- Hongyi Liu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Yu Pu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Yaping Xu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - He Xu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Huanhai Liu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Yin Cheng
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Weihua Xu
- Department of Otolaryngology Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Xiaoping Chen
- Department of Otolaryngology Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China.
| | - Jingping Fan
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, China.
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687
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Ovadje P, Ammar S, Guerrero JA, Arnason JT, Pandey S. Dandelion root extract affects colorectal cancer proliferation and survival through the activation of multiple death signalling pathways. Oncotarget 2018; 7:73080-73100. [PMID: 27564258 PMCID: PMC5341965 DOI: 10.18632/oncotarget.11485] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 07/26/2016] [Indexed: 12/18/2022] Open
Abstract
Dandelion extracts have been studied extensively in recent years for its anti-depressant and anti-inflammatory activity. Recent work from our lab, with in-vitro systems, shows the anti-cancer potential of an aqueous dandelion root extract (DRE) in several cancer cell models, with no toxicity to non-cancer cells. In this study, we examined the cancer cell-killing effectiveness of an aqueous DRE in colon cancer cell models. Aqueous DRE induced programmed cell death (PCD) selectively in > 95% of colon cancer cells, irrespective of their p53 status, by 48 hours of treatment. The anti-cancer efficacy of this extract was confirmed in in-vivo studies, as the oral administration of DRE retarded the growth of human colon xenograft models by more than 90%. We found the activation of multiple death pathways in cancer cells by DRE treatment, as revealed by gene expression analyses showing the expression of genes implicated in programmed cell death. Phytochemical analyses of the extract showed complex multi-component composition of the DRE, including some known bioactive phytochemicals such as α-amyrin, β-amyrin, lupeol and taraxasterol. This suggested that this natural extract could engage and effectively target multiple vulnerabilities of cancer cells. Therefore, DRE could be a non-toxic and effective anti-cancer alternative, instrumental for reducing the occurrence of cancer cells drug-resistance.
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Affiliation(s)
- Pamela Ovadje
- Department of Chemistry & Biochemistry, University of Windsor, Windsor ON, Canada
| | - Saleem Ammar
- Department of Biology, University of Ottawa, Ottawa ON, Canada
| | - Jose-Antonio Guerrero
- Department of Biology, University of Ottawa, Ottawa ON, Canada.,Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. Xalapa, Veracruz, México
| | | | - Siyaram Pandey
- Department of Chemistry & Biochemistry, University of Windsor, Windsor ON, Canada
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688
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Ahmed AA, Abedalthagafi M. Cancer diagnostics: The journey from histomorphology to molecular profiling. Oncotarget 2018; 7:58696-58708. [PMID: 27509178 PMCID: PMC5295463 DOI: 10.18632/oncotarget.11061] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/19/2016] [Indexed: 12/15/2022] Open
Abstract
Although histomorphology has made significant advances into the understanding of cancer etiology, classification and pathogenesis, it is sometimes complicated by morphologic ambiguities, and other shortcomings that necessitate the development of ancillary tests to complement its diagnostic value. A new approach to cancer patient management consists of targeting specific molecules or gene mutations in the cancer genome by inhibitory therapy. Molecular diagnostic tests and genomic profiling methods are increasingly being developed to identify tumor targeted molecular profile that is the basis of targeted therapy. Novel targeted therapy has revolutionized the treatment of gastrointestinal stromal tumor, renal cell carcinoma and other cancers that were previously difficult to treat with standard chemotherapy. In this review, we discuss the role of histomorphology in cancer diagnosis and management and the rising role of molecular profiling in targeted therapy. Molecular profiling in certain diagnostic and therapeutic difficulties may provide a practical and useful complement to histomorphology and opens new avenues for targeted therapy and alternative methods of cancer patient management.
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Affiliation(s)
- Atif A Ahmed
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Malak Abedalthagafi
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,The Saudi Human Genome Laboratory, Department of Pathology, King Fahad Medical City, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
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689
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Xu X, Cui N, Wang E. Application of an acellular dermal matrix to a rabbit model of oral mucosal defects. Exp Ther Med 2018; 15:2450-2456. [PMID: 29456650 PMCID: PMC5795579 DOI: 10.3892/etm.2018.5705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 10/06/2017] [Indexed: 11/29/2022] Open
Abstract
Acellular dermal matrices (ADMs) are increasingly used for the restoration of soft-tissue defects of the oral cavity due to their ability to facilitate faster healing and reduce scar formation without rejection. However, few studies have focused on the histopathology and biological mechanisms involved in their use. The aim of the present study was to observe tissue growth, histopathologic changes and altered biomolecular signatures that occur during the repair of oral defects in rabbit models over time, either with or without the employment of ADM. Animals were sacrificed 1, 2 and 4 weeks following surgery and histological changes were evaluated using hematoxylin and eosin staining. Reverse transcription-polymerase chain reaction and western blot analysis were used to determine changes in the expression of vascular endothelial growth factor (VEGF) and glucose transporter 1 (GLUT1). It was demonstrated that wounds treated with ADM exhibited a weak inflammatory reaction and faster epithelialization and revascularization compared with untreated wounds. This may have been caused by the elevated levels of VEGF and GLUT1 protein detected in the ADM-treated defects. Thus, treating wounds of the oral mucosa with an ADM improves pathological responses compared with those with an untreated wound. The current study demonstrates the underlying mechanisms by which ADM promotes wound healing in defects of the oral mucosa and the results provide further evidence for the use of ADM in clinical settings for the repair of mucosal defects.
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Affiliation(s)
- Xiangliang Xu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, P.R. China
| | - Nianhui Cui
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, P.R. China
| | - Enbo Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, P.R. China
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690
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Abstract
Testis development and function is regulated by intricate cell-cell cross talk. Characterization of the mechanisms underpinning this has been derived through a wide variety of approaches including pharmacological manipulation, transgenics, and cell-specific ablation of populations. The removal of all or a proportion of a specific cell type has been achieved through a variety of approaches. In this paper, we detail a combined transgenic and pharmacological approach to ablate the Sertoli or germ cell populations using diphtheria toxin in mice. We describe the key steps in generation, validation, and use of the models and also describe the caveats and cautions necessary. We also provide a detailed description of the methodology applied to characterize testis development and function in models of postnatal Sertoli or germ cell ablation.
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691
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Bishehsari F, Engen PA, Preite NZ, Tuncil YE, Naqib A, Shaikh M, Rossi M, Wilber S, Green SJ, Hamaker BR, Khazaie K, Voigt RM, Forsyth CB, Keshavarzian A. Dietary Fiber Treatment Corrects the Composition of Gut Microbiota, Promotes SCFA Production, and Suppresses Colon Carcinogenesis. Genes (Basel) 2018; 9:genes9020102. [PMID: 29462896 PMCID: PMC5852598 DOI: 10.3390/genes9020102] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/29/2018] [Accepted: 02/13/2018] [Indexed: 12/26/2022] Open
Abstract
Epidemiological studies propose a protective role for dietary fiber in colon cancer (CRC). One possible mechanism of fiber is its fermentation property in the gut and ability to change microbiota composition and function. Here, we investigate the role of a dietary fiber mixture in polyposis and elucidate potential mechanisms using TS4Cre × cAPCl°x468 mice. Stool microbiota profiling was performed, while functional prediction was done using PICRUSt. Stool short-chain fatty acid (SCFA) metabolites were measured. Histone acetylation and expression of SCFA butyrate receptor were assessed. We found that SCFA-producing bacteria were lower in the polyposis mice, suggesting a decline in the fermentation product of dietary fibers with polyposis. Next, a high fiber diet was given to polyposis mice, which significantly increased SCFA-producing bacteria as well as SCFA levels. This was associated with an increase in SCFA butyrate receptor and a significant decrease in polyposis. In conclusion, we found polyposis to be associated with dysbiotic microbiota characterized by a decline in SCFA-producing bacteria, which was targetable by high fiber treatment, leading to an increase in SCFA levels and amelioration of polyposis. The prebiotic activity of fiber, promoting beneficial bacteria, could be the key mechanism for the protective effects of fiber on colon carcinogenesis. SCFA-promoting fermentable fibers are a promising dietary intervention to prevent CRC.
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Affiliation(s)
- Faraz Bishehsari
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Phillip A Engen
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Nailliw Z Preite
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Yunus E Tuncil
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, IN USA.
| | - Ankur Naqib
- DNA Services Facility, Research Resources Center, University of Illinois at Chicago, Chicago, IL USA.
| | - Maliha Shaikh
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Marco Rossi
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Sherry Wilber
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Stefan J Green
- DNA Services Facility, Research Resources Center, University of Illinois at Chicago, Chicago, IL USA.
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL USA.
| | - Bruce R Hamaker
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, IN USA.
| | - Khashayarsha Khazaie
- Department of Immunology, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - Robin M Voigt
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Christopher B Forsyth
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
| | - Ali Keshavarzian
- Department of Internal Medicine, Division of Gastroenterology, Rush University Medical Center, Chicago, IL USA.
- Department of Physiology, Rush University Medical Center, Chicago, IL USA.
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht Netherlands.
- Department of Pharmacology, Rush University Medical Center, Chicago, IL USA.
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692
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Wang S, Yu J, Jones JW, Pierzchalski K, Kane MA, Trainor PA, Xavier-Neto J, Moise AR. Retinoic acid signaling promotes the cytoskeletal rearrangement of embryonic epicardial cells. FASEB J 2018; 32:3765-3781. [PMID: 29447006 DOI: 10.1096/fj.201701038r] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
All- trans-retinoic acid (RA), a vitamin A metabolite, is an important signaling molecule required for the proper development of the heart. The epicardium is the main source of RA in the embryonic heart, yet the cardiogenic functions of epicardial-produced RA are not fully understood. Here, we investigated the roles of RA signaling in the embryonic epicardium using in vivo and in vitro models of excess or deficiency of RA. Our results suggested that RA signaling facilitates the cytoskeletal rearrangement required for the epicardial-to-mesenchymal transition of epicardial cells. In vivo treatment with an inhibitor of RA synthesis delayed the migration of epicardial-derived precursor cells (EPDCs) into the myocardium; the opposite was seen in the case of dehydrogenase/reductase superfamily (DHRS)3-deficient embryos, a mouse model of RA excess. Analysis of the behavior of epicardial cells exposed to RA receptor agonists or inhibitors of RA synthesis in vitro revealed that appropriate levels of RA are important in orchestrating the platelet-derived growth factor-induced loss of epithelial character, cytoskeletal remodeling, and migration, necessary for the infiltration of the myocardium by EPDCs. To understand the molecular mechanisms by which RA regulates epicardial cytoskeletal rearrangement, we used a whole transcriptome profiling approach, which in combination with pull-down and inhibition assays, demonstrated that the Ras homolog gene family, member A (RhoA) pathway is required for the morphologic changes induced by RA in epicardial cells. Collectively, these data demonstrate that RA regulates the cytoskeletal rearrangement of epicardial cells via a signaling cascade that involves the RhoA pathway.-Wang, S., Yu, J., Jones, J. W., Pierzchalski, K., Kane, M. A., Trainor, P. A., Xavier-Neto, J., Moise, A. R. Retinoic acid signaling promotes the cytoskeletal rearrangement of embryonic epicardial cells.
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Affiliation(s)
- Suya Wang
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Kansas, Lawrence, Kansas, USA
| | - Jianshi Yu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Jace W Jones
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Keely Pierzchalski
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Maureen A Kane
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Paul A Trainor
- Stowers Institute for Medical Research, Kansas City, Missouri, USA.,Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - José Xavier-Neto
- Conselho Nacional do Desenvolvimento Científico e Tecnológico (CNPq) Sao Paulo, Brazil; and
| | - Alexander R Moise
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Kansas, Lawrence, Kansas, USA.,Northern Ontario School of Medicine, Department of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, Canada
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693
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Lahiani A, Klaiman E, Grimm O. Enabling Histopathological Annotations on Immunofluorescent Images through Virtualization of Hematoxylin and Eosin. J Pathol Inform 2018. [PMID: 29531846 PMCID: PMC5841016 DOI: 10.4103/jpi.jpi_61_17] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Context: Medical diagnosis and clinical decisions rely heavily on the histopathological evaluation of tissue samples, especially in oncology. Historically, classical histopathology has been the gold standard for tissue evaluation and assessment by pathologists. The most widely and commonly used dyes in histopathology are hematoxylin and eosin (H&E) as most malignancies diagnosis is largely based on this protocol. H&E staining has been used for more than a century to identify tissue characteristics and structures morphologies that are needed for tumor diagnosis. In many cases, as tissue is scarce in clinical studies, fluorescence imaging is necessary to allow staining of the same specimen with multiple biomarkers simultaneously. Since fluorescence imaging is a relatively new technology in the pathology landscape, histopathologists are not used to or trained in annotating or interpreting these images. Aims, Settings and Design: To allow pathologists to annotate these images without the need for additional training, we designed an algorithm for the conversion of fluorescence images to brightfield H&E images. Subjects and Methods: In this algorithm, we use fluorescent nuclei staining to reproduce the hematoxylin information and natural tissue autofluorescence to reproduce the eosin information avoiding the necessity to specifically stain the proteins or intracellular structures with an additional fluorescence stain. Statistical Analysis Used: Our method is based on optimizing a transform function from fluorescence to H&E images using least mean square optimization. Results: It results in high quality virtual H&E digital images that can easily and efficiently be analyzed by pathologists. We validated our results with pathologists by making them annotate tumor in real and virtual H&E whole slide images and we obtained promising results. Conclusions: Hence, we provide a solution that enables pathologists to assess tissue and annotate specific structures based on multiplexed fluorescence images.
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Affiliation(s)
- Amal Lahiani
- Roche Pharma Research and Early Development, Pathology and Tissue Analytics, Roche Innovation Center, Munich, Penzberg, Germany
| | - Eldad Klaiman
- Roche Pharma Research and Early Development, Pathology and Tissue Analytics, Roche Innovation Center, Munich, Penzberg, Germany
| | - Oliver Grimm
- Roche Pharma Research and Early Development, Pathology and Tissue Analytics, Roche Innovation Center, Munich, Penzberg, Germany
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694
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Liu Q, Wu C, Huang S, Wu Q, Zhou T, Liu X, Liu X, Hu X, Li L. Decreased hyperpolarization-activated cyclic nucleotide-gated channels are involved in bladder dysfunction associated with spinal cord injury. Int J Mol Med 2018; 41:2609-2618. [PMID: 29436607 PMCID: PMC5846662 DOI: 10.3892/ijmm.2018.3489] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/08/2018] [Indexed: 12/12/2022] Open
Abstract
Spinal cord injury (SCI) leads to bereft voluntary control of bladder, but the possible role of spontaneous excited system in bladder of SCI patients is poorly understood. Hyper polarization-activated cyclic nucleotide-gated (HCN) channels are deemed to regulate the spontaneous contraction of bladder, our study explored the functional role of HCN channels in SCI induced neurogenic bladder. Sixty female Sprague-Dawley rats were randomized into control, sham and SCI groups. Rat models subjected to SCI at S2 levels were successfully established and were assessed using hematoxylin and eosin staining and cystometry. In SCI rats, the mRNA and protein expression levels of HCN channels and the Ih density were significantly reduced, and expression levels of several bladder HCN1 channel regulatory proteins were also significantly changed. The effects of 50 µM forskolin and 50 µM 8-bromoadenosine 3′,5′-cyclic monophosphate on [Ca2+]i of isolated bladder interstitial cells of Cajal-like cells were significantly decreased in SCI rats. The spontaneous contractions in detrusor strips from SCI rats were significantly weakened. Furthermore, detrusor strips from SCI rats exhibited decreased tolerance to two doses of ZD7288 (10 and 50 µM). Taken together, our results indicate that the decreased bladder HCN channel expression and function induced by altered regulatory proteins are involved in the pathological process of SCI induced neurogenic bladder, which present HCN channels as valid therapeutic targets for treating this disease.
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Affiliation(s)
- Qian Liu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Chao Wu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Shengquan Huang
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Qingjian Wu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Tao Zhou
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Xiaobing Liu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Xin Liu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Xiaoyan Hu
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
| | - Longkun Li
- Department of Urology, The Second Affiliated Hospital, The Third Military Medical University, Chongqing 400037, P.R. China
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695
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Groves HT, Cuthbertson L, James P, Moffatt MF, Cox MJ, Tregoning JS. Respiratory Disease following Viral Lung Infection Alters the Murine Gut Microbiota. Front Immunol 2018; 9:182. [PMID: 29483910 PMCID: PMC5816042 DOI: 10.3389/fimmu.2018.00182] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/22/2018] [Indexed: 12/21/2022] Open
Abstract
Alterations in the composition of the gut microbiota have profound effects on human health. Consequently, there is great interest in identifying, characterizing, and understanding factors that initiate these changes. Despite their high prevalence, studies have only recently begun to investigate how viral lung infections have an impact on the gut microbiota. There is also considerable interest in whether the gut microbiota could be manipulated during vaccination to improve efficacy. In this highly controlled study, we aimed to establish the effect of viral lung infection on gut microbiota composition and the gut environment using mouse models of common respiratory pathogens respiratory syncytial virus (RSV) and influenza virus. This was then compared to the effect of live attenuated influenza virus (LAIV) vaccination. Both RSV and influenza virus infection resulted in significantly altered gut microbiota diversity, with an increase in Bacteroidetes and a concomitant decrease in Firmicutes phyla abundance. Although the increase in the Bacteroidetes phylum was consistent across several experiments, differences were observed at the family and operational taxonomic unit level. This suggests a change in gut conditions after viral lung infection that favors Bacteroidetes outgrowth but not individual families. No change in gut microbiota composition was observed after LAIV vaccination, suggesting that the driver of gut microbiota change is specific to live viral infection. Viral lung infections also resulted in an increase in fecal lipocalin-2, suggesting low-grade gut inflammation, and colonic Muc5ac levels. Owing to the important role that mucus plays in the gut environment, this may explain the changes in microbiota composition observed. This study demonstrates that the gut microbiota and the gut environment are altered following viral lung infections and that these changes are not observed during vaccination. Whether increased mucin levels and gut inflammation drive, or are a result of, these changes is still to be determined.
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Affiliation(s)
- Helen T Groves
- Mucosal Infection and Immunity Group, Department of Medicine, Section of Virology, St. Mary's Campus, Imperial College London, London, United Kingdom
| | - Leah Cuthbertson
- National Heart & Lung Institute, Imperial College London, London, United Kingdom.,Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Trust, Imperial College London, London, United Kingdom
| | - Phillip James
- National Heart & Lung Institute, Imperial College London, London, United Kingdom.,Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Trust, Imperial College London, London, United Kingdom
| | - Miriam F Moffatt
- National Heart & Lung Institute, Imperial College London, London, United Kingdom.,Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Trust, Imperial College London, London, United Kingdom
| | - Michael J Cox
- National Heart & Lung Institute, Imperial College London, London, United Kingdom.,Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Trust, Imperial College London, London, United Kingdom
| | - John S Tregoning
- Mucosal Infection and Immunity Group, Department of Medicine, Section of Virology, St. Mary's Campus, Imperial College London, London, United Kingdom
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696
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Suarez Muñoz M, Confalonieri D, Walles H, van Dongen EMWM, Dandekar G. Recombinant Collagen I Peptide Microcarriers for Cell Expansion and Their Potential Use As Cell Delivery System in a Bioreactor Model. J Vis Exp 2018:57363. [PMID: 29443081 PMCID: PMC5912385 DOI: 10.3791/57363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Tissue engineering is a promising field, focused on developing solutions for the increasing demand on tissues and organs regarding transplantation purposes. The process to generate such tissues is complex, and includes an appropriate combination of specific cell types, scaffolds, and physical or biochemical stimuli to guide cell growth and differentiation. Microcarriers represent an appealing tool to expand cells in a three-dimensional (3D) microenvironment, since they provide higher surface-to volume ratios and mimic more closely the in vivo situation compared to traditional two-dimensional methods. The vascular system, supplying oxygen and nutrients to the cells and ensuring waste removal, constitutes an important building block when generating engineered tissues. In fact, most constructs fail after being implanted due to lacking vascular support. In this study, we present a protocol for endothelial cell expansion on recombinant collagen-based microcarriers under dynamic conditions in spinner flask and bioreactors, and we explain how to determine in this setting cell viability and functionality. In addition, we propose a method for cell delivery for vascularization purposes without additional detachment steps necessary. Furthermore, we provide a strategy to evaluate the cell vascularization potential in a perfusion bioreactor on a decellularized biological matrix. We believe that the use of the presented methods could lead to the development of new cell-based therapies for a large range of tissue engineering applications in the clinical practice.
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Affiliation(s)
- Melva Suarez Muñoz
- Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg;
| | - Davide Confalonieri
- Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg
| | - Heike Walles
- Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg; Translational Center Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research ISC
| | | | - Gudrun Dandekar
- Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg; Translational Center Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research ISC
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697
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Amiri A, Dehkordi RAF, Heidarnejad MS, Dehkordi MJ. Effect of the Zinc Oxide Nanoparticles and Thiamine for the Management of Diabetes in Alloxan-Induced Mice: a Stereological and Biochemical Study. Biol Trace Elem Res 2018; 181:258-264. [PMID: 28534098 DOI: 10.1007/s12011-017-1035-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/21/2017] [Indexed: 01/05/2023]
Abstract
This research was carried out to evaluate the antidiabetic effects of zinc oxide nanoparticles (ZnO NPs) and thiamine following experimental diabetes. Fifty-six 6-week-old female mice were used and divided into seven groups of eight animals. Diabetes was induced in fasted mice by using intraperitoneal (IP) injection of alloxan (180 mg/kg). Groups included (I) non-diabetic control, (II) thiamine (30 mg/l, IP), (III) alloxan-induced diabetic mice, (IV) diabetes + ZnO NPs (0.1 mg/kg IP), (V) diabetes + ZnO NPs (0.5 mg/kg IP), (VI) diabetes + ZnO NPs (0.1 mg/kg IP) + thiamine (30 mg/l, IP), and (VII) diabetes + ZnO NPs (0.5 mg/kg IP) + thiamine (30 mg/l, IP). Coincident with pancreas recovery, in diabetic treated mice (groups IV to VII), the mean islet volume, islets per square micrometer, and volume density of the pancreas had increased than in alloxan-induced diabetic mice. ZnO NPs and thiamine induced a decreasing blood glucose, lower serum triglyceride (TG), LDL, and total cholesterol (TC) levels in alloxan-induced diabetic mice treated with ZnO NPs and thiamine, simultaneously increasing HDL as well. In conclusion, ZnO NPs and thiamine are potent antidiabetic factors, and that, these compound supplementation possesses hypoglycemic properties and have effect on serum lipid parameters in diabetes mice.
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Affiliation(s)
| | | | | | - Mohsen Jafarian Dehkordi
- Department of Clinical pathology, Faculty of Veterinary Medicine, Azad University of Shahrekord, Shahrekord, Iran
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698
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Liu X, Wang A, Liang X, Liu J, Zou F, Chen C, Zhao Z, Deng Y, Wu H, Qi Z, Wang B, Wang L, Liu F, Xu Y, Wang W, Fernandes SM, Stone RM, Galinsky IA, Brown JR, Loh T, Griffin JD, Zhang S, Weisberg EL, Zhang X, Liu J, Liu Q. Simultaneous inhibition of Vps34 kinase would enhance PI3Kδ inhibitor cytotoxicity in the B-cell malignancies. Oncotarget 2018; 7:53515-53525. [PMID: 27447747 PMCID: PMC5288202 DOI: 10.18632/oncotarget.10650] [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: 04/19/2016] [Accepted: 06/03/2016] [Indexed: 11/27/2022] Open
Abstract
PI3Kδ has been found to be over-expressed in B-Cell-related malignancies. Despite the clinical success of the first selective PI3Kδ inhibitor, CAL-101, inhibition of PI3Kδ itself did not show too much cytotoxic efficacy against cancer cells. One possible reason is that PI3Kδ inhibition induced autophagy that protects the cells from death. Since class III PI3K isoform PIK3C3/Vps34 participates in autophagy initiation and progression, we predicted that a PI3Kδ and Vps34 dual inhibitor might improve the anti-proliferative activity observed for PI3Kδ-targeted inhibitors. We discovered a highly potent ATP-competitive PI3Kδ/Vps34 dual inhibitor, PI3KD/V-IN-01, which displayed 10-1500 fold selectivity over other PI3K isoforms and did not inhibit any other kinases in the kinome. In cells, PI3KD/V-IN-01 showed 30-300 fold selectivity between PI3Kδ and other class I PI3K isoforms. PI3KD/V-IN-01 exhibited better anti-proliferative activity against AML, CLL and Burkitt lymphoma cell lines than known selective PI3Kδ and Vps34 inhibitors. Interestingly, we observed FLT3-ITD AML cells are more sensitive to PI3KD/V-IN-01 than the FLT3 wt expressing cells. In AML cell inoculated xenograft mouse model, PI3KD/V-IN-01 exhibited dose-dependent anti-tumor growth efficacies. These results suggest that dual inhibition of PI3Kδ and Vps34 might be a useful approach to improve the PI3Kδ inhibitor's anti-tumor efficacy.
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Affiliation(s)
- Xiaochuan Liu
- Department of Chemistry, University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China.,High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China
| | - Aoli Wang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Xiaofei Liang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Juanjuan Liu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Fengming Zou
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Cheng Chen
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Zheng Zhao
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Yuanxin Deng
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Hong Wu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Ziping Qi
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Beilei Wang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Li Wang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Feiyang Liu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Yunhe Xu
- Department of Chemistry, University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - Wenchao Wang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Stacey M Fernandes
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Richard M Stone
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Ilene A Galinsky
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jennifer R Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Teckpeng Loh
- Department of Chemistry, University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China
| | - James D Griffin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Shanchun Zhang
- CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China.,Hefei Cosource Medicine Technology Co. Ltd. Hefei, 230031, Anhui, P. R.China
| | - Ellen L Weisberg
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Xin Zhang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China
| | - Jing Liu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,CHMFL-HCMTC Target Therapy Joint Laboratory, Hefei, 230031, Anhui, P. R. China
| | - Qingsong Liu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China.,University of Science and Technology of China, Anhui, Hefei, 230036, P. R. China.,Hefei Science Center, Chinese Academy of Sciences, Hefei, 230031, Anhui, P. R. China
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699
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Rowatt K, Burns RE, Frasca S, Long DM. A combination Prussian blue – hematoxylin and eosin staining technique for identification of iron and other histological features. J Histotechnol 2018. [DOI: 10.1080/01478885.2017.1417696] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Katelyn Rowatt
- Texas A&M University College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
| | - Rachel E. Burns
- Institute for Conservation Research, San Diego Zoo Global, San Diego, CA, USA
| | - Salvatore Frasca
- Department of Comparative Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Denise M. Long
- Department of Pathobiology and Veterinary Sciences, University of Connecticut, Storrs, CT, USA
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700
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Vara D, Watt JM, Fortunato TM, Mellor H, Burgess M, Wicks K, Mace K, Reeksting S, Lubben A, Wheeler-Jones CPD, Pula G. Direct Activation of NADPH Oxidase 2 by 2-Deoxyribose-1-Phosphate Triggers Nuclear Factor Kappa B-Dependent Angiogenesis. Antioxid Redox Signal 2018; 28:110-130. [PMID: 28793782 PMCID: PMC5725637 DOI: 10.1089/ars.2016.6869] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIMS Deoxyribose-1-phosphate (dRP) is a proangiogenic paracrine stimulus released by cancer cells, platelets, and macrophages and acting on endothelial cells. The objective of this study was to clarify how dRP stimulates angiogenic responses in human endothelial cells. RESULTS Live cell imaging, electron paramagnetic resonance, pull-down of dRP-interacting proteins, followed by immunoblotting, gene silencing of different NADPH oxidases (NOXs), and their regulatory cosubunits by small interfering RNA (siRNA) transfection, and experiments with inhibitors of the sugar transporter glucose transporter 1 (GLUT1) were utilized to demonstrate that dRP acts intracellularly by directly activating the endothelial NOX2 complex, but not NOX4. Increased reactive oxygen species generation in response to NOX2 activity leads to redox-dependent activation of the transcription factor nuclear factor kappa B (NF-κB), which, in turn, induces vascular endothelial growth factor receptor 2 (VEGFR2) upregulation. Using endothelial tube formation assays, gene silencing by siRNA, and antibody-based receptor inhibition, we demonstrate that the activation of NF-κB and VEGFR2 is necessary for the angiogenic responses elicited by dRP. The upregulation of VEGFR2 and NOX2-dependent stimulation of angiogenesis by dRP were confirmed in excisional wound and Matrigel plug vascularization assays in vivo using NOX2-/- mice. INNOVATION For the first time, we demonstrate that dRP acts intracellularly and stimulates superoxide anion generation by direct binding and activation of the NOX2 enzymatic complex. CONCLUSIONS This study describes a novel molecular mechanism underlying the proangiogenic activity of dRP, which involves the sequential activation of NOX2 and NF-κB and upregulation of VEGFR2. Antioxid. Redox Signal. 28, 110-130.
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Affiliation(s)
- Dina Vara
- 1 Institute of Biomedical and Clinical Science, University of Exeter Medical School , Exeter, United Kingdom
| | - Joanna M Watt
- 2 Department of Pharmacy and Pharmacology, University of Bath , Bath, United Kingdom
| | - Tiago M Fortunato
- 3 Department of Biomedical Engineering, Eindhoven University of Technology , Eindhoven, The Netherlands
| | - Harry Mellor
- 4 Department of Biochemistry, University of Bristol , Bristol, United Kingdom
| | - Matthew Burgess
- 5 The Healing Foundation Centre, University of Manchester , Manchester, United Kingdom
| | - Kate Wicks
- 5 The Healing Foundation Centre, University of Manchester , Manchester, United Kingdom
| | - Kimberly Mace
- 5 The Healing Foundation Centre, University of Manchester , Manchester, United Kingdom
| | - Shaun Reeksting
- 6 Mass Spectrometry Service and Chemical Characterisation and Analysis Facility, University of Bath , Bath, United Kingdom
| | - Anneke Lubben
- 6 Mass Spectrometry Service and Chemical Characterisation and Analysis Facility, University of Bath , Bath, United Kingdom
| | | | - Giordano Pula
- 1 Institute of Biomedical and Clinical Science, University of Exeter Medical School , Exeter, United Kingdom
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