701
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Sciandra F, Scicchitano BM, Signorino G, Bigotti MG, Tavazzi B, Lombardi F, Bozzi M, Sica G, Giardina B, Blaess S, Brancaccio A. Evaluation of the effect of a floxed Neo cassette within the dystroglycan (Dag1) gene. BMC Res Notes 2017; 10:601. [PMID: 29157305 PMCID: PMC5696793 DOI: 10.1186/s13104-017-2926-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 11/10/2017] [Indexed: 11/16/2022] Open
Abstract
Objective Dystroglycan (DG) is an adhesion complex formed by two subunits, α-DG and β-DG. In skeletal muscle, DG is part of the dystrophin-glycoprotein complex that is crucial for sarcolemma stability and it is involved in a plethora of muscular dystrophy phenotypes. Due to the important role played by DG in skeletal muscle stability as well as in a wide variety of other tissues including brain and the peripheral nervous system, it is essential to investigate its genetic assembly and transcriptional regulation. Results Herein, we analyze the effect of the insertion of a floxed neomycin (Neo) cassette within the 3′ portion of the universally conserved IG1-intron of the DG gene (Dag1). We analyzed the transcription level of Dag1 and the expression of the DG protein in skeletal muscle of targeted mice compared to wild-type and we did not find any alterations that might be attributed to the gene targeting. However, we found an increase of the cross-sectional areas of tibialis anterior that might have some physiological significance that needs to be assessed in the future. Moreover, in targeted mice the skeletal muscle morphology and its regeneration capacity after injury did not show any evident alterations. We confirmed that the targeting of Dag1 with a floxed Neo-cassette did not produce any gross undesired effects.
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Affiliation(s)
- Francesca Sciandra
- Istituto di Chimica del Riconoscimento Molecolare (CNR), c/o Università Cattolica del Sacro Cuore, Rome, Italy.
| | | | - Giulia Signorino
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Barbara Tavazzi
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Lombardi
- Istituto di Clinica delle Malattie Infettive, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Manuela Bozzi
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gigliola Sica
- Istituto di Istologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Bruno Giardina
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Sandra Blaess
- Neurodevelopmental Genetics, Institute of Reconstructive Neurobiology, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Andrea Brancaccio
- Istituto di Chimica del Riconoscimento Molecolare (CNR), c/o Università Cattolica del Sacro Cuore, Rome, Italy. .,School of Biochemistry, University of Bristol, Bristol, BS8 1TD, UK.
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702
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Yu KH, Berry GJ, Rubin DL, Ré C, Altman RB, Snyder M. Association of Omics Features with Histopathology Patterns in Lung Adenocarcinoma. Cell Syst 2017; 5:620-627.e3. [PMID: 29153840 PMCID: PMC5746468 DOI: 10.1016/j.cels.2017.10.014] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 07/30/2017] [Accepted: 10/19/2017] [Indexed: 12/16/2022]
Abstract
Adenocarcinoma accounts for more than 40% of lung malignancy, and microscopic pathology evaluation is indispensable for its diagnosis. However, how histopathology findings relate to molecular abnormalities remains largely unknown. Here, we obtained H&E-stained whole-slide histopathology images, pathology reports, RNA sequencing, and proteomics data of 538 lung adenocarcinoma patients from The Cancer Genome Atlas and used these to identify molecular pathways associated with histopathology patterns. We report cell-cycle regulation and nucleotide binding pathways underpinning tumor cell dedifferentiation, and we predicted histology grade using transcriptomics and proteomics signatures (area under curve >0.80). We built an integrative histopathology-transcriptomics model to generate better prognostic predictions for stage I patients (p = 0.0182 ± 0.0021) compared with gene expression or histopathology studies alone, and the results were replicated in an independent cohort (p = 0.0220 ± 0.0070). These results motivate the integration of histopathology and omics data to investigate molecular mechanisms of pathology findings and enhance clinical prognostic prediction.
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Affiliation(s)
- Kun-Hsing Yu
- Biomedical Informatics Program, Stanford University, Stanford, CA 94305-5479, USA; Department of Genetics, Stanford University, Stanford, CA 94305-5120, USA; Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA
| | - Gerald J Berry
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Daniel L Rubin
- Biomedical Informatics Program, Stanford University, Stanford, CA 94305-5479, USA; Department of Biomedical Data Science, Stanford University, Stanford, CA 94305, USA; Department of Radiology, Stanford University, Stanford, CA 94305-5105, USA; Department of Medicine (Biomedical Informatics Research), Stanford University, Stanford, CA 94305-5479, USA
| | - Christopher Ré
- Department of Computer Science, Stanford University, Stanford, CA 94305-9025, USA
| | - Russ B Altman
- Biomedical Informatics Program, Stanford University, Stanford, CA 94305-5479, USA; Department of Genetics, Stanford University, Stanford, CA 94305-5120, USA; Department of Computer Science, Stanford University, Stanford, CA 94305-9025, USA; Department of Bioengineering, Stanford University, Stanford, CA 94305-4125, USA
| | - Michael Snyder
- Department of Genetics, Stanford University, Stanford, CA 94305-5120, USA.
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703
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Bhat AH, Ganguly B, Tiwari AK, Das AK. Canine Parvovirus ns1 gene and Chicken Anemia vp3 gene induce partial oncolysis of Canine Transmissible Venereal Tumor. Sci Rep 2017; 7:15419. [PMID: 29133942 PMCID: PMC5684217 DOI: 10.1038/s41598-017-15734-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/27/2017] [Indexed: 01/24/2023] Open
Abstract
The oncolytic effect of Canine Parvovirus ns1 gene and Chicken Anemia vp3 gene in naturally occurring cases of Canine Transmissible Venereal Tumor (CTVT) is being reported. Dogs suffering from CTVT (N = 18) were systematically randomized into three groups viz. A, B, and C (n = 6). Animals of the groups A, B, and C received 100 µg of the ns1 gene, vp3 gene, and ns1 + vp3 gene combination, respectively, for three weeks intratumorally at weekly intervals; results were normalized against base values before commencement of therapy and after complete remission that were taken as negative and positive controls, respectively. Initiation of oncolytic gene therapy arrested the further progression of the tumor but most of the animals in the study underwent incomplete remission, indicating incomplete activity of ns1 and vp3 genes. The oncolytic effect of the treatments was in the order ns1 > vp3 > ns1 + vp3. Oncolysis was accompanied by decreased mitotic index and AgNOR count, and increased TUNEL positive cells and CD4+ lymphocyte counts. Our findings show that Canine Parvovirus ns1 may eventually find an important role as an oncolytic agent.
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Affiliation(s)
- Aubid Hussain Bhat
- Department of Surgery and Radiology, College of Veterinary & Animal Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263145, India
| | - Bhaskar Ganguly
- Animal Biotechnology Center, Department of Veterinary Physiology and Biochemistry, College of Veterinary & Animal Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263145, India.
| | - Ashok Kumar Tiwari
- Molecular Biology Laboratory, Division of Veterinary Biotechnology, Indian Veterinary Research Institute, Izzatnagar, 243122, India
| | - Arup Kumar Das
- Department of Surgery and Radiology, College of Veterinary & Animal Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263145, India
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704
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Rammer M, Webersinke G, Haitchi-Petnehazy S, Maier E, Hackl H, Charoentong P, Malli T, Steinmair M, Petzer AL, Rumpold H. MicroRNAs and their role for T stage determination and lymph node metastasis in early colon carcinoma. Clin Exp Metastasis 2017; 34:431-440. [PMID: 29134398 DOI: 10.1007/s10585-017-9863-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/12/2017] [Indexed: 12/14/2022]
Abstract
Worldwide, colon cancer is among the most common cancer entities. Understanding the molecular background is the key to enable accurate stage determination, which is crucial to assess optimal therapy options. The search for preoperative biomarkers is ongoing. In recent years, several studies have proposed a diagnostic and prognostic role for miRNAs in cancer. Aim of this study was to evaluate miRNA expression patterns correlating with tumor stage, especially lymph node metastasis, in primary colon carcinoma tissue. Screening was accomplished using GeneChip® miRNA v3.0 arrays (Thermo Fisher Scientific, Waltham, MA, USA) and validated via TaqMan® qPCR assays (Thermo Fisher Scientific, Waltham, MA, USA) to investigate miRNA expressions in 168 FFPE and 83 fresh frozen colon carcinoma samples. Regarding lymph node status, analyses displayed no significantly differential miRNA expression. Interestingly, divergent expression of miR-18a-5p, miR-20a-5p, miR-21-5p, miR-152-3p and miR-1973 was detected in stage pT1. Although miRNAs might not represent reliable biomarkers regarding lymph node metastasis status, they could support risk assessment in stage T1 tumors.
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Affiliation(s)
- Melanie Rammer
- Laboratory for Molecular Biology and Tumor Cytogenetics, Department of Internal Medicine I: Medical Oncology, Hematology and Gastroenterology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Gerald Webersinke
- Laboratory for Molecular Biology and Tumor Cytogenetics, Department of Internal Medicine I: Medical Oncology, Hematology and Gastroenterology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | | | - Eva Maier
- Department of Pathology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Hubert Hackl
- Division of Bioinformatics, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Pornpimol Charoentong
- Division of Bioinformatics, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Theodora Malli
- Laboratory for Molecular Biology and Tumor Cytogenetics, Department of Internal Medicine I: Medical Oncology, Hematology and Gastroenterology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Maria Steinmair
- Department of Pathology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Andreas L Petzer
- Department of Internal Medicine I: Medical Oncology, Hematology and Gastroenterology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Holger Rumpold
- Department of Internal Medicine I: Medical Oncology, Hematology and Gastroenterology, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria.
- Internal Medicine II: Medical Oncology, Hematology, Gastroenterology and Rheumatology, Academic Teaching Hospital Feldkirch, Carinagasse 47, 6807, Feldkirch, Austria.
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705
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Friesen M, Cowan CA. FPLD2 LMNA mutation R482W dysregulates iPSC-derived adipocyte function and lipid metabolism. Biochem Biophys Res Commun 2017; 495:254-260. [PMID: 29108996 DOI: 10.1016/j.bbrc.2017.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 11/02/2017] [Indexed: 01/05/2023]
Abstract
Lipodystrophies are disorders that directly affect lipid metabolism and storage. Familial partial lipodystrophy type 2 (FPLD2) is caused by an autosomal dominant mutation in the LMNA gene. FPLD2 is characterized by abnormal adipose tissue distribution. This leads to metabolic deficiencies, such as insulin-resistant diabetes mellitus and hypertriglyceridemia. Here we have derived iPSC lines from two individuals diagnosed with FPLD2, and differentiated these cells into adipocytes. Adipogenesis and certain adipocyte functions are impaired in FPLD2-adipocytes. Consistent with the lipodystrophic phenotype, FPLD2-adipocytes appear to accumulate markers of autophagy and catabolize triglycerides at higher levels than control adipocytes. These data are suggestive of a mechanism causing the lack of adipose tissue in FPLD2 patients.
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Affiliation(s)
- Max Friesen
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA; Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC, Leiden, The Netherlands.
| | - Chad A Cowan
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.
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706
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Anti-Inflammatory Activity of Crude Venom Isolated from Parasitoid Wasp, Bracon hebetor Say. Mediators Inflamm 2017; 2017:6978194. [PMID: 29213193 PMCID: PMC5682083 DOI: 10.1155/2017/6978194] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/26/2017] [Accepted: 08/29/2017] [Indexed: 02/04/2023] Open
Abstract
Pest control in the agricultural fields, a major concern globally, is currently achieved through chemical or biological methods. Chemical methods, which leave toxic residue in the produce, are less preferred than biological methods. Venoms injected by stings of various wasps that kill the pest is considered as the examples of the biological method. Although several studies have investigated the biological control of pests through these venoms, very few studies have reported the effects of these venoms on mammalian cells. Bracon hebetor, an ectoparasitoid of the order Hymenoptera, is having a paramount importance in parasitizing various lepidopterous larvae including Plodia interpunctella also called as Indianmeal moth (IMM). Since it is biologically controlled by B. hebetor venom, therefore in our study, herein for the first time, we report the anti-inflammatory activities of the venom from B. hebetor (BHV). We developed a septic shock mice model for in vivo anti-inflammatory studies and RAW 264.7 cells for in vitro studies. Our results clearly demonstrate that BHV can dose dependently abrogate the nitric oxide (NO) production and suppress the levels of proinflammatory mediators and cytokines without posing any cytotoxicity via the nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways.
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707
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Ristic J, Nikolic T, Jeremic J, Stojic I, Janicijevic-Hudomal S, Popovic M, Arsic-Komljenovic G, Radojevic-Popovic R, Srejovic I, Zivkovic V. Тhe Impact Of Positive Acceleration (+Gz) on Antioxidant Capacity and Histopathological Alterations in Different Organs and Tissues in Rats. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2017. [DOI: 10.1515/sjecr-2016-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Since the early 1940s, a significant amount of research has been conducted to describe the impact of the high-G acceleration on the cardiovascular system. The objective of the present study was to examine the role of the antioxidant enzyme system under biodynamic stress in the liver, heart and gastric mucosa in response to high-magnitude +Gz exposure in a rat model. Twenty adult male Wistar albino rats (10 rats per group; 9-11 weeks old, 200-250 g b.w.) were divided into the following two groups: control and G (exposed to a biodynamic stress model under positive (+7 Gz) acceleration for 40 s). The influence of acute biodynamic stress on pro-oxidative parameters in the rat liver (xanthine oxidase (XOD), catalase (CAT), peroxidase (Px), glutathione peroxidase (GSH-Px), total content of glutathione (GSH), lipid peroxidation (LPx)) and on histopathological alterations in the liver, cardiac muscle and gastric mucosa was examined. Biodynamic stress resulting from positive (+7 Gz) acceleration resulted in a highly statistically signifi cant increase of CAT GSH-Px activity compared to the control group. The LPx levels were significantly decreased, but the GSH contents and the activities of other enzymes were not significantly changed. Significant microscopic changes in the liver, heart and gastric mucosa were observed in the G group. These results clearly indicate that +Gz acceleration alters biochemical systems. These alterations in cellular processes may be mediated by influences of hypoxia or ischaemia via changes in the antioxidant capacity.
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Affiliation(s)
- Jelena Ristic
- Richter Gedeon Representative Office for Serbia, Belgrade , Serbia
| | - Tamara Nikolic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
| | - Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
| | - Isidora Stojic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
| | | | - Mira Popovic
- Department of Chemistry, Faculty of Sciences, University of Novi Sad, Novi Sad , Serbia
| | | | | | - Ivan Srejovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
| | - Vladimir Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
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708
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Abrey Recalde MJ, Alvarez RS, Alberto F, Mejias MP, Ramos MV, Fernandez Brando RJ, Bruballa AC, Exeni RA, Alconcher L, Ibarra CA, Amaral MM, Palermo MS. Soluble CD40 Ligand and Oxidative Response Are Reciprocally Stimulated during Shiga Toxin-Associated Hemolytic Uremic Syndrome. Toxins (Basel) 2017; 9:toxins9110331. [PMID: 29068360 PMCID: PMC5705951 DOI: 10.3390/toxins9110331] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/29/2017] [Accepted: 10/15/2017] [Indexed: 01/01/2023] Open
Abstract
Shiga toxin (Stx), produced by Escherichia coli, is the main pathogenic factor of diarrhea-associated hemolytic uremic syndrome (HUS), which is characterized by the obstruction of renal microvasculature by platelet-fibrin thrombi. It is well known that the oxidative imbalance generated by Stx induces platelet activation, contributing to thrombus formation. Moreover, activated platelets release soluble CD40 ligand (sCD40L), which in turn contributes to oxidative imbalance, triggering the release of reactive oxidative species (ROS) on various cellular types. The aim of this work was to determine if the interaction between the oxidative response and platelet-derived sCD40L, as consequence of Stx-induced endothelium damage, participates in the pathogenic mechanism during HUS. Activated human glomerular endothelial cells (HGEC) by Stx2 induced platelets to adhere to them. Although platelet adhesion did not contribute to endothelial damage, high levels of sCD40L were released to the medium. The release of sCD40L by activated platelets was inhibited by antioxidant treatment. Furthermore, we found increased levels of sCD40L in plasma from HUS patients, which were also able to trigger the respiratory burst in monocytes in a sCD40L-dependent manner. Thus, we concluded that platelet-derived sCD40L and the oxidative response are reciprocally stimulated during Stx2-associated HUS. This process may contribute to the evolution of glomerular occlusion and the microangiopathic lesions.
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Affiliation(s)
- Maria J Abrey Recalde
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Romina S Alvarez
- Laboratorio de Fisiopatogenia, Departamento de Fisiología, Instituto de Fisiología y Biofísica "Bernardo Houssay", Facultad de Medicina-Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, 1121 Buenos Aires, Argentina.
| | - Fabiana Alberto
- División Trombosis, Instituto de investigaciones Hematológicas "Mariano R. Castex", Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Maria P Mejias
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Maria V Ramos
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Romina J Fernandez Brando
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Andrea C Bruballa
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
| | - Ramon A Exeni
- Departamento de Nefrología, Hospital Municipal del Niño, San Justo, B1754FUD Provincia de Buenos Aires, Argentina.
| | - Laura Alconcher
- Unidad de Nefrourología Infantil. Hospital Interzonal General Dr. José Penna, Bahía Blanca, 8000 Provincia de Buenos Aires, Argentina.
| | - Cristina A Ibarra
- Laboratorio de Fisiopatogenia, Departamento de Fisiología, Instituto de Fisiología y Biofísica "Bernardo Houssay", Facultad de Medicina-Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, 1121 Buenos Aires, Argentina.
| | - María M Amaral
- Laboratorio de Fisiopatogenia, Departamento de Fisiología, Instituto de Fisiología y Biofísica "Bernardo Houssay", Facultad de Medicina-Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, 1121 Buenos Aires, Argentina.
| | - Marina S Palermo
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas-Academia Nacional de Medicina, 1425 Buenos Aires, Argentina.
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709
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Saccomandi P, Quero G, Costamagna G, Diana M, Marescaux J. Effects of Nd:YAG laser for the controlled and localized treatment of early gastrointestinal tumors: Preliminary in vivo study. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2017:4533-4536. [PMID: 29060905 DOI: 10.1109/embc.2017.8037864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Endoscopic submucosal dissection (ESD) is a minimally invasive technique allowing for the removal of early gastrointestinal (GI) tumors, widely considered as a valid alternative to conventional surgery. However, ESD is technically demanding, and potentially severe complications, such as bleeding and perforation, may occur. Energy-based techniques (e.g., radiofrequency ablation) might offer a potential alternative to ESD. However, their use mandates the ability to predict the damage induced and to identify a "signature" of the complete ablation, without the need for a physical specimen. Ideally, an energy-based procedure should be tunable in order to limit the ablation to the superficial layers, namely mucosa (M) and submucosa (SM), without injuring the muscularis propria (MP), thereby minimizing GI perforation. This experimental study aims to investigate thermal damage induced by Nd:YAG laser on the gastric wall, at different laser settings such as power (P) and time (t). Laser ablation was performed on the stomach wall of 6 Wistar rats. Two powers (2.5W and 1.0W) and 3 exposure times (12s, 6s and 2s) were tested, for a total of 30 ablations. Histological analysis allowed to assess thermal damage, in terms of damage depth (DD) and identification of involved layers. The ratio (R) between DD and the total depth (TD) of target layers (M+SM) was used as an index to evaluate the effectiveness of laser settings. At P=2.5W, MP was damaged (R>1) in the majority of cases (11/15). At P=1.0W, MP was preserved in all tests (R<;1), and rarely (4/15) did the damage reach the whole SM (R=1). Histopathological analysis evidenced that tissue damage was strongly related to the variable tissue thickness. These preliminary results seem to support the fact that endoscopic tunable laser ablation is feasible with a consistent damage/power correlation. Further tests are required to optimize the settings for applications on early GI tumors.
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710
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Li W, Ma H, Zhang J, Zhu L, Wang C, Yang Y. Unraveling the roles of CD44/CD24 and ALDH1 as cancer stem cell markers in tumorigenesis and metastasis. Sci Rep 2017; 7:13856. [PMID: 29062075 PMCID: PMC5653849 DOI: 10.1038/s41598-017-14364-2] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 10/10/2017] [Indexed: 12/18/2022] Open
Abstract
CD44/CD24 and ALDH1 are widely used cancer stem cell (CSC) markers in breast cancer. However, their expression is not always consistent even in the same subtype of breast cancer. Systematic comparison of their functions is still lacking. We investigated the expression of CD44, CD24 and ALDH1 in different subtypes of breast cancer cells, and explored their relationship with cancer progression. We defined a parameter CD44/CD24 ratio to present the expression level of CD44 and CD24 and found that high CD44/CD24 ratio and ALDH1+ are both indicators for cancer malignancy, but play different functions during tumor progression. High CD44/CD24 ratio is more related to cell proliferation and tumorigenesis, which is confirmed by mammosphere formation and tumorigenesis in xenotransplanted mice. ALDH1+ is a stronger indicator for cell migration and tumor metastasis. Suppression of CD44 and ALDH1 by siRNA led to decreased tumorigenicity and cell migration capacity. The combination of high CD44/CD24 ratio and ALDH1+ would be a more reliable way to characterize CSCs. Moreover, both high CD44/CD24 ratio and ALDH1+ were conserved during metastasis, from the primary tumors to the circulating tumor cells (CTCs) and the distant metastases, suggesting the significant value of these CSC markers in assisting cancer detection, prognostic evaluation, and even cancer therapeutics.
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Affiliation(s)
- Wenzhe Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P.R. China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, P.R. China, 100049
| | - Huailei Ma
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, P.R. China, 100049
| | - Jin Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Ling Zhu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P.R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, P.R. China, 100049.
| | - Chen Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P.R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, P.R. China, 100049.
| | - Yanlian Yang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P.R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, P.R. China, 100049.
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711
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Liberti MV, Dai Z, Wardell SE, Baccile JA, Liu X, Gao X, Baldi R, Mehrmohamadi M, Johnson MO, Madhukar NS, Shestov AA, Chio IIC, Elemento O, Rathmell JC, Schroeder FC, McDonnell DP, Locasale JW. A Predictive Model for Selective Targeting of the Warburg Effect through GAPDH Inhibition with a Natural Product. Cell Metab 2017; 26:648-659.e8. [PMID: 28918937 PMCID: PMC5629112 DOI: 10.1016/j.cmet.2017.08.017] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 04/25/2017] [Accepted: 08/18/2017] [Indexed: 01/09/2023]
Abstract
Targeted cancer therapies that use genetics are successful, but principles for selectively targeting tumor metabolism that is also dependent on the environment remain unknown. We now show that differences in rate-controlling enzymes during the Warburg effect (WE), the most prominent hallmark of cancer cell metabolism, can be used to predict a response to targeting glucose metabolism. We establish a natural product, koningic acid (KA), to be a selective inhibitor of GAPDH, an enzyme we characterize to have differential control properties over metabolism during the WE. With machine learning and integrated pharmacogenomics and metabolomics, we demonstrate that KA efficacy is not determined by the status of individual genes, but by the quantitative extent of the WE, leading to a therapeutic window in vivo. Thus, the basis of targeting the WE can be encoded by molecular principles that extend beyond the status of individual genes.
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Affiliation(s)
- Maria V Liberti
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA; Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Ziwei Dai
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Suzanne E Wardell
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Joshua A Baccile
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Xiaojing Liu
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Xia Gao
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Robert Baldi
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Mahya Mehrmohamadi
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA; Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Marc O Johnson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Neel S Madhukar
- Department of Physiology and Biophysics, Meyer Cancer Center, Institute for Precision Medicine and Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Alexander A Shestov
- Molecular Imaging and Metabolomics Lab, Radiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Iok I Christine Chio
- Cold Spring Harbor Laboratory, Lustgarten Foundation Pancreatic Cancer Research Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Olivier Elemento
- Department of Physiology and Biophysics, Meyer Cancer Center, Institute for Precision Medicine and Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Jeffrey C Rathmell
- Department of Pathology, Microbiology, and Immunology, Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Frank C Schroeder
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Donald P McDonnell
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jason W Locasale
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA.
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712
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Angelousi A, Szarek E, Shram V, Kebebew E, Quezado M, Stratakis CA. Lipofuscin Accumulation in Cortisol-Producing Adenomas With and Without PRKACA Mutations. Horm Metab Res 2017; 49:786-792. [PMID: 28834963 PMCID: PMC6299839 DOI: 10.1055/s-0043-116385] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The adrenal cortex accumulates lipofuscin granules with age. Lipofuscin accumulation is also seen in adrenocortical tumors associated with Cushing syndrome (CS), particularly those with PRKAR1A mutations, such as in primary pigmented nodular adrenocortical disease (PPNAD). We investigated the presence of lipofuscin in cortisol-producing adenomas (CPAs) responsible for CS with and without the PRKACA (pLeu206Arg) somatic mutation. Ten paraffin-embedded sections of CPAs from cases with overt CS with (n=4) and without (n=6) a PRKACA mutation were microscopically examined through three detection methods, the hematoxylin-Eosin (H & E) staining, the Fontana Masson (FM) staining using light microscopy, and lipofuscin autofluorescence, using confocal laser scanning microscopy (CLSM). Sections were examined quantitatively according to the intensity of the pigmentation, as well as qualitatively based on the total number of granular pigments at all visual fields per tissue slide. Tissues from CPAs were compared to peritumoral adjacent tissues (n=5), to Conn adenomas (n=4), and PPNAD (n=3). CPAs had significantly higher number of lipofuscin-pigment granules compared to peritumoral adrenal tissue and Conn adenomas (46.9±9.5 vs. 3.8±4.8, p=0.0001). The presence of the PRKACA mutation did not increase the chances of pigmentation in the form of lipofuscin granules within CPAs associated with CS. Thus, all CPAs leading to CS accumulate lipofuscin, which presents like pigmentation sometimes seen macroscopically but always detected microscopically. PPNAD caused by PRKAR1A mutations is the best known adrenal lesion leading to CS associated with intense lipofuscin pigmentation and this was confirmed here; CPAs harboring PRKACA mutations did not have statistically significantly more pigmentation than CPAs without mutation, but a larger study might have shown a difference.
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Affiliation(s)
- Anna Angelousi
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
| | - Eva Szarek
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
| | - Vincent Shram
- Microscopy and Imaging Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
| | - Electron Kebebew
- Endocrine Surgery, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
| | - Martha Quezado
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA
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713
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Zamini G, Khadem-Erfan MB, Faridi A. Capillaria hepatica in Rattus Spp. Captured in Sanandaj and Orally uninfected Balb/C Mice With Embryonated Eggs. INTERNATIONAL JOURNAL OF BASIC SCIENCE IN MEDICINE 2017. [DOI: 10.15171/ijbsm.2017.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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714
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Minocha S, Villeneuve D, Rib L, Moret C, Guex N, Herr W. Segregated hepatocyte proliferation and metabolic states within the regenerating mouse liver. Hepatol Commun 2017; 1:871-885. [PMID: 29404499 PMCID: PMC5721458 DOI: 10.1002/hep4.1102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/08/2017] [Accepted: 08/12/2017] [Indexed: 12/20/2022] Open
Abstract
Mammalian partial hepatectomy (PH) induces an orchestrated compensatory hyperplasia, or regeneration, in remaining tissue to restore liver mass; during this process, liver functions are maintained. We probed this process in mice with feeding- and light/dark-entrained animals subjected to sham or PH surgery. Early on (i.e., 10 hours), irrespective of sham or PH surgery, hepatocytes equidistant from the portal and central veins (i.e., midlobular) accumulated the G1-phase cell-division-cycle marker cyclin D1. By 24 hours, however, cyclin D1 disappeared absent PH but was reinforced in midlobular hepatocytes after PH. At 48 hours after PH and 2 hours fasting, synchronously mitotic hepatocytes possessed less glycogen than surrounding nonproliferating hepatocytes. The differential glycogen content generated a conspicuous entangled pattern of proliferating midlobular and nonproliferating periportal and pericentral hepatocytes. The nonproliferating hepatocytes maintained aspects of normal liver properties. Conclusion: In the post-PH regenerating mouse liver, a binary switch segregates midlobular cells to proliferate side-by-side with nonproliferating periportal and pericentral cells, which maintain metabolic functions. Our results also indicate that mechanisms of liver regeneration display evolutionary flexibility. (Hepatology Communications 2017;1:871-885).
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Affiliation(s)
- Shilpi Minocha
- Center for Integrative Genomics, Génopode University of Lausanne Lausanne Switzerland
| | - Dominic Villeneuve
- Center for Integrative Genomics, Génopode University of Lausanne Lausanne Switzerland
| | - Leonor Rib
- Center for Integrative Genomics, Génopode University of Lausanne Lausanne Switzerland.,Vital-IT Group, SIB Swiss Institute of Bioinformatics, Génopode Lausanne Switzerland.,Present address: Present address for Leonor Rib is the Bioinformatics Center, Department of Biology & Biotech Research and Innovation Center University of Copenhagen Copenhagen Denmark
| | - Catherine Moret
- Center for Integrative Genomics, Génopode University of Lausanne Lausanne Switzerland
| | - Nicolas Guex
- Vital-IT Group, SIB Swiss Institute of Bioinformatics, Génopode Lausanne Switzerland
| | - Winship Herr
- Center for Integrative Genomics, Génopode University of Lausanne Lausanne Switzerland
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715
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Sevoflurane Ameliorates Myocardial Cell Injury by Inducing Autophagy via the Deacetylation of LC3 by SIRT1. Anal Cell Pathol (Amst) 2017; 2017:6281285. [PMID: 29104855 PMCID: PMC5635469 DOI: 10.1155/2017/6281285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/27/2017] [Indexed: 11/24/2022] Open
Abstract
Misfolded and aberrant proteins have been found to be associated with myocardial cell injury. Thus, increased clearance of misfolded or aggregated proteins via autophagy might be a potential option in preventing myocardial cell injury. Sevoflurane may ameliorate myocardial cell injury by affecting sirtuin 1- (SIRT1-) mediated autophagy. Rat models with myocardial cell injury were induced by limb ischemia reperfusion. The model rats received different treatments: sevoflurane, nicotinamide, and autophagy inhibitor 3-methyladenine (3-MA). Autophagy was observed by SEM. The levels of SIRT1 and microtubule-associated protein 1A/1B-light chain 3 (LC3) were measured. Present findings demonstrated that limb ischemia reperfusion induced autophagy. Sevoflurane increased the level of SIRT1, which deacetylated LC3 and further increased autophagic rates. On the other hand, the autophagy was inhibited by sevoflurane and or the inhibitors of SIRT1 and LC3. Present results demonstrated a novel molecular mechanism by which sevoflurane induced autophagy by increasing the level of SIRT1 and reducing the acetylation of LC3.
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716
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Lee EH, Kim EM, Ji KY, Park AR, Choi HR, Lee HY, Kim SM, Chung BY, Park CH, Choi HJ, Ko YH, Bai HW, Kang HS. Axl acts as a tumor suppressor by regulating LIGHT expression in T lymphoma. Oncotarget 2017; 8:20645-20655. [PMID: 28423548 PMCID: PMC5400533 DOI: 10.18632/oncotarget.15830] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/01/2017] [Indexed: 01/17/2023] Open
Abstract
Axl is an oncogenic receptor tyrosine kinase that plays a role in many cancers. LIGHT (Lymphotoxin-related inducible ligand that competes for glycoprotein D binding to herpesvirus entry mediator on T cells) is a ligand that induces robust anti-tumor immunity by enhancing the recruitment and activation of effector immune cells at tumor sites. We observed that mouse EL4 and human Jurkat T lymphoma cells that stably overexpressed Axl also showed high expression of LIGHT. When Jurkat-Axl cells were treated with Gas6, a ligand for Axl, LIGHT expression was upregulated through activation of the PI3K/AKT signaling pathway and transcriptional induction by Sp1. The lytic activity of cytotoxic T lymphocytes and natural killer cells was enhanced by EL4-Axl cells. In addition, tumor volume and growth were markedly reduced due to enhanced apoptotic cell death in EL4-Axl tumor-bearing mice as compared to control mice. We also observed upregulated expression of CCL5 and its receptor, CCR5, and enhanced intratumoral infiltration of cytotoxic T lymphocytes and natural killer cells in EL4-Axl-bearing mice as compared to mock controls. These data strongly suggested that Axl exerts novel tumor suppressor effects by inducing upregulation of LIGHT in the tumor microenvironment of T lymphoma.
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Affiliation(s)
- Eun-Hee Lee
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Eun-Mi Kim
- Predictive Model Research Center, Korea Institute of Toxicology, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - A-Reum Park
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, Gwangsan-gu, Gwangju 506-706, Republic of Korea
| | - Hwa-Youn Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Dong-gu, Daegu 701-310, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Byung Yeoup Chung
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Chul-Hong Park
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Hyo Jin Choi
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Young-Hyeh Ko
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - Hyoung-Woo Bai
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
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717
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Chen X, Ren K, Liang P, Li J, Chen K, Gao J. Association between spectral computed tomography images and clinicopathological features in advanced gastric adenocarcinoma. Oncol Lett 2017; 14:6664-6670. [PMID: 29163693 PMCID: PMC5686525 DOI: 10.3892/ol.2017.7064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 07/07/2017] [Indexed: 02/06/2023] Open
Abstract
To investigate the role of spectral computed tomography (CT)-generated iodine concentration (IC) in the evaluation of clinicopathological features of advanced gastric adenocarcinoma (AGC), 42 patients who underwent abdominal enhanced CT with spectral imaging mode were selected for the present study. The IC of the primary lesion in the arterial phase (ICAP) and portal venous phase (ICVP) was measured and the IC of the aorta was used for a normalized iodine concentration (nIC). Micro-vessel density (MVD) and lymphatic vessel density (LVD) were detected using immunohistochemical assays against cluster of differentiation 34 and D2-40, respectively. Other clinicopathological characteristics were also documented. The IC parameters were revealed to be significantly increased in the high-MVD group, particularly for the nICVP (P=0.002). Additionally, the nICAP revealed a significant difference (P=0.041) between the high- and low-LVD group. The nICAP and nICVP were increased in the poorly differentiated group compared with the moderately differentiated group (P=0.040 and P=0.011, respectively). The ICs and MVD demonstrated a statistically significant positive linear correlation. nICVP was able to be used to discriminate between the moderately and poorly differentiated carcinomas, with an area under the receiver operating characteristic curve of 0.759. However, IC demonstrated no correlation with serosal involvement, lymph node metastasis, LVD, and nodular or metastatic tumors. The results of the present study suggest that the nICVP value may serve as a non-invasive marker for the angiogenesis of, and the differentiations between, patients with AGC.
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Affiliation(s)
- Xiaohua Chen
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Ke Ren
- Department of Gastroenterological Surgery, Luohe Central Hospital, Luohe, Henan 462000, P.R. China
| | - Pan Liang
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Jiayin Li
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Kuisheng Chen
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Jianbo Gao
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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718
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Qin A, Zhu J, Liu X, Zeng D, Gu M, Lv C. MicroRNA-1271 inhibits cellular proliferation of hepatocellular carcinoma. Oncol Lett 2017; 14:6783-6788. [PMID: 29181102 DOI: 10.3892/ol.2017.7052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 02/13/2017] [Indexed: 12/28/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common causes of cancer-associated mortality worldwide, particularly in China. MicroRNAs (miRs) serve important roles in the pathogenesis of HCC. The present study investigated the function of miR-1271 in HCC. The miR-1271 levels were analyzed by quantitative reverse transcription polymerase chain reaction. Cells growth was examined by MTT assay. Bioinformatics algorithms from TargetScanHuman were used to predict the target genes of miR-1271. The protein level was assayed by western blotting. miR-1271 demonstrated a lower expression level in HCC tissues. Upregulation of miR-1271 suppressed the growth of HepG-2 and Huh-7 cells and induced apoptosis of cells. Forkhead box Q1 (FOXQ1) was targeted by miR-1271. In conclusion, miR-1271 is a novel tumor suppressor that inhibits HCC proliferation and induces cellular apoptosis by targeting FOXQ1 in HCC. The results of the present study may provide a novel therapeutic target of HCC.
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Affiliation(s)
- Andong Qin
- Institute of Liver Disease, The Fourth Hospital of Huai'an, Huaian, Jiangsu 223002, P.R. China
| | - Jiehua Zhu
- Department of Laboratory Medicine, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563000, P.R. China
| | - Xingxiang Liu
- Institute of Liver Disease, The Fourth Hospital of Huai'an, Huaian, Jiangsu 223002, P.R. China
| | - Dongxiao Zeng
- Institute of Liver Disease, The Fourth Hospital of Huai'an, Huaian, Jiangsu 223002, P.R. China
| | - Maolin Gu
- Institute of Liver Disease, The Fourth Hospital of Huai'an, Huaian, Jiangsu 223002, P.R. China
| | - Chun Lv
- Institute of Liver Disease, The Fourth Hospital of Huai'an, Huaian, Jiangsu 223002, P.R. China
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719
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Xiao Q, Ye Q, Wang W, Xiao J, Fu B, Xia Z, Zhang X, Liu Z, Zeng X. Mild hypothermia pretreatment protects against liver ischemia reperfusion injury via the PI3K/AKT/FOXO3a pathway. Mol Med Rep 2017; 16:7520-7526. [PMID: 28944825 PMCID: PMC5865885 DOI: 10.3892/mmr.2017.7501] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 07/26/2017] [Indexed: 12/15/2022] Open
Abstract
Mild hypothermia is known to protect against ischemia and reperfusion (IR) injury. The exact mechanisms of the protection are not fully understood. Forkhead box O3 (FOXO3a) has been defined as a critical mediator in cellular processes, including oxidative stress, apoptosis, inflammation, cell death and DNA repair; however, the protection function in mild hypothermia has not been reported previously. The current study was designed to investigate the function of phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/FOXO3a pathway in pretreatment with mild hypothermia during IR injury. Additionally, PI3K/AKT/FOXO3a signaling was inhibited using Ly294002 and the effect on the protective function of mild hypothermia pretreatment was evaluated. Furthermore, the apoptotic and inflammatory response induced by the IR injury was evaluated. Liver IR injury induced a significant increase in the level of apoptosis and inflammatory responses. However, pretreatment with mild hypothermia increased phospho (p)-AKT and p-FOXO3a following IR injury, and significantly reduced apoptosis and inflammatory cytokines release. However, inhibiting p-AKT and p-FOXO3a using Ly294002 suppressed the liver protection produced by mild hypothermia. In conclusion, these findings indicated that mild hypothermia pretreatment exhibited liver protective effects against IR injury associated with suppressing inflammatory cytokine release and apoptosis via the PI3K/AKT/FOXO3a pathway.
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Affiliation(s)
- Qi Xiao
- Department of Transplant Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410013, P.R. China
| | - Qifa Ye
- Department of Transplant Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410013, P.R. China
| | - Wei Wang
- Department of Transplant Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jiansheng Xiao
- Department of Transplant Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Biqi Fu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhiping Xia
- Hubei Key Laboratory of Medical Technology on Transplantation, Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xingjian Zhang
- Hubei Key Laboratory of Medical Technology on Transplantation, Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Zhongzhong Liu
- Hubei Key Laboratory of Medical Technology on Transplantation, Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xianpeng Zeng
- Hubei Key Laboratory of Medical Technology on Transplantation, Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Wuhan, Hubei 430071, P.R. China
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720
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Pan Q, Guo Y, Kong F. Poly(glycerol sebacate) combined with chondroitinase ABC promotes spinal cord repair in rats. J Biomed Mater Res B Appl Biomater 2017; 106:1770-1777. [PMID: 28901688 DOI: 10.1002/jbm.b.33984] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 08/07/2017] [Accepted: 08/16/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Qi Pan
- Department of Neurosurgery; Xinjiang Uygur Autonomous Region Corps Hospital of Chinese People's Armed Police Force; Urumqi 830091 China
| | - Yan Guo
- Department of Ophthalmology; Shanghai Corps Hospital of Chinese People's Armed Police Force; Shanghai 201103 China
| | - Fanyong Kong
- Department of Neurosurgery, Yueyang Hospital of Integrated Chinese and Western Medicine; Shanghai University of Traditional Chinese Medicine; Shanghai 200437 China
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721
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Daaboul HE, Daher CF, Bodman-Smith K, Taleb RI, Shebaby WN, Boulos J, Dagher C, Mroueh MA, El-Sibai M. Antitumor activity of β-2-himachalen-6-ol in colon cancer is mediated through its inhibition of the PI3K and MAPK pathways. Chem Biol Interact 2017; 275:162-170. [DOI: 10.1016/j.cbi.2017.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/14/2017] [Accepted: 08/02/2017] [Indexed: 12/23/2022]
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722
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Casal D, Pais D, Iria I, Videira PA, Mota-Silva E, Alves S, Mascarenhas-Lemos L, Pen C, Vassilenko V, Goyri-O’Neill J. Blood Supply to the Integument of the Abdomen of the Rat: A Surgical Perspective. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2017; 5:e1454. [PMID: 29062636 PMCID: PMC5640333 DOI: 10.1097/gox.0000000000001454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 07/07/2017] [Indexed: 01/30/2023]
Abstract
BACKGROUND Many fundamental questions regarding the blood supply to the integument of the rat remain to be clarified, namely the degree of homology between rat and humans. The aim of this work was to characterize in detail the macro and microvascular blood supply to the integument covering the ventrolateral aspect of the abdominal wall of the rat. METHODS Two hundred five Wistar male rats weighing 250-350 g were used. They were submitted to gross anatomical dissection after intravascular colored latex injection (n = 30); conversion in modified Spalteholz cleared specimens (n=10); intravascular injection of a Perspex solution, and then corroded, in order to produce vascular corrosion casts of the vessels in the region (n = 5); histological studies (n = 20); scanning electron microscopy of vascular corrosion casts (n = 10); surgical dissection of the superficial caudal epigastric vessels (n = 100); and to thermographic evaluation (n = 30). RESULTS The ventrolateral abdominal wall presented a dominant superficial vascular system, which was composed mainly of branches from the superficial caudal epigastric artery and vein in the caudal half. The cranial half still received significant arterial contributions from the lateral thoracic artery in all cases and from large perforators coming from the intercostal arteries and from the deep cranial epigastric artery. CONCLUSIONS These data show that rats and humans present a great deal of homology regarding the blood supply to the ventrolateral aspect of the abdominal integument. However, there are also significant differences that must be taken into consideration when performing and interpreting experimental procedures in rats.
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Affiliation(s)
- Diogo Casal
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Diogo Pais
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Inês Iria
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Paula A. Videira
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Eduarda Mota-Silva
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Sara Alves
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Luís Mascarenhas-Lemos
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Cláudia Pen
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Valentina Vassilenko
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - João Goyri-O’Neill
- From the Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central, Lisbon, Portugal; Anatomy Department, Nova Medical School, Lisbon, Portugal; UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Glycoimmunology Group, CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal; Molecular Microbiology and Biotechnology Group, iMed—Research Institute for Medicines, Faculdade de Farmácia Universidade Lisboa, Lisbon, Portugal; CDG & Allies—Professionals and Patient Associations International Network (CDG & Allies—PPAIN), Caparica, Portugal; LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal; and Pathology Department, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
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723
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Rossfeld KK, Justiniano SE, Ding H, Gong L, Kothandaraman S, Sawant D, Saji M, Wright CL, Kirschner LS, Ringel MD, Tweedle MF, Phay JE. Biological Evaluation of a Fluorescent-Imaging Agent for Medullary Thyroid Cancer in an Orthotopic Model. J Clin Endocrinol Metab 2017; 102:3268-3277. [PMID: 28591772 PMCID: PMC5587064 DOI: 10.1210/jc.2017-00573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 06/02/2017] [Indexed: 02/06/2023]
Abstract
Context The primary and definitive treatment of medullary thyroid cancer (MTC) is surgical resection. Recurrent or residual disease is typically a result of incomplete surgical removal. Objective Our objective is to develop a compound that assists in intraoperative visualization of cancer, which would have the potential to improve surgical cure rates and outcomes. Results We report the biological characterization of Compound-17, which is labeled with IRdye800, allowing fluorescent visualization of MTC mouse models. We found that the agent has high affinity for two human MTC cell lines (TT and MZ-CRC1) in vitro and in vivo. We further tested the affinity of the compound in a newly developed MTC orthotopic xenograft model and found that Compound-17 produces fluorescent signals within MTC-derived orthotopic xenografts in comparison with a sequence-jumbled control compound and surrounding normal tissues. Conclusions Compound-17 is a unique and effective molecule for MTC identification that may have therapeutic potential.
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Affiliation(s)
- Kara K. Rossfeld
- Department of Surgery, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Steven E. Justiniano
- Division of Endocrinology Diabetes and Metabolism, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Haiming Ding
- Department of Radiology, Wright Center for Innovation in Biomedical Imaging, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Li Gong
- Department of Radiology, Wright Center for Innovation in Biomedical Imaging, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Shankaran Kothandaraman
- Department of Radiology, Wright Center for Innovation in Biomedical Imaging, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Dwitiya Sawant
- Department of Molecular Genetics, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Motoyasu Saji
- Division of Endocrinology Diabetes and Metabolism, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Chadwick L. Wright
- Department of Radiology, Wright Center for Innovation in Biomedical Imaging, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Lawrence S. Kirschner
- Division of Endocrinology Diabetes and Metabolism, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
- Molecular Biology and Cancer Genetics, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Matthew D. Ringel
- Division of Endocrinology Diabetes and Metabolism, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
- Molecular Biology and Cancer Genetics, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - Michael F. Tweedle
- Department of Radiology, Wright Center for Innovation in Biomedical Imaging, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
| | - John E. Phay
- Department of Surgery, Ohio State University-Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Ohio State University, Columbus, Ohio 43210
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724
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Poloxamer P85 increases anticancer activity of Schiff base against prostate cancer in vitro and in vivo. Anticancer Drugs 2017; 28:869-879. [DOI: 10.1097/cad.0000000000000528] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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725
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Zheng T, Wang A, Hu D, Wang Y. Tumor-targeting templated silica nanoparticles as a dual-drug delivery system for anti-angiogenic ovarian cancer therapy. Exp Ther Med 2017; 14:2162-2170. [PMID: 28962137 PMCID: PMC5609177 DOI: 10.3892/etm.2017.4777] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 05/05/2017] [Indexed: 01/14/2023] Open
Abstract
The present study indicated the successful construction of a silica nanoparticle (SLN)-based drug delivery system (DDS) for the tumor-targeted co-delivery of two anti-angiogenic drugs, candesartan (CD) and trastuzumab (Tra), for ovarian cancer therapy via different anti-angiogenic mechanisms using hyaluronic acid (HA)/Tra/CD/SLNs. In vitro and in vivo anti-angiogenic assays indicated that CD and Tra exert beneficial functions on suppressing cancer angiogenesis, and exhibited significantly enhanced effects compared with the angiotensin stimulated group (P<0.01). CD and Tra co-delivery also significantly increased the anti-angiogenic effect compared with applying either drug alone (P<0.01). Furthermore, HA on the surface of the DDS was demonstrated to reduce the cytotoxicity of the DDS and also endowed the particles with an advanced tumor-homing property in vitro and in vivo. The present results revealed that HA/Tra/CD/SLNs may be a preferable formulation for anti-angiogenic ovarian cancer therapy.
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Affiliation(s)
- Tianying Zheng
- Cancer Center, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Aijun Wang
- Cancer Center, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Dongyan Hu
- Cancer Center, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yonggang Wang
- Cancer Center, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
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726
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Esmaieli HA, Berenjian S. Survey of p16INK4a immunohistochemistry in diagnosis of dysplastic changes in cervix. JOURNAL OF ANALYTICAL RESEARCH IN CLINICAL MEDICINE 2017. [DOI: 10.15171/jarcm.2017.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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727
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Canine Monocytic Ehrlichiosis among working dogs of organised kennels in India: A comprehensive analyses of clinico-pathology, serological and molecular epidemiological approach. Prev Vet Med 2017; 147:26-33. [PMID: 29254723 PMCID: PMC7125896 DOI: 10.1016/j.prevetmed.2017.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 08/13/2017] [Accepted: 08/14/2017] [Indexed: 12/22/2022]
Abstract
Significant difference was observed between molecular and sero-prevalence of E. canis. Phylogenetic analysis revealed divergence in isolates from Brazil & USA. Prevalence studies for CME should also involve screening of apparently healthy dogs. Concurrent infection of CME and Babesia gibsoni in working dogs was found to be fatal.
Canine Monocytic Ehrlichiosis (CME) is a serious tick-borne rickettsial disease affecting canine populations globally. Besides few reports from stray and pet dogs from localised geographical regions (cities/towns/small states), a comprehensive study on prevalence of Ehrlichia canis (E. canis) among working dogs from different geo-climatic zones of India was pertinently lacking. Study of CME among these dog populations was thus carried out, encompassing clinical aspects and different diagnostic methodologies viz., microscopy, serology and molecular biology. During the two-year study period, clinical specimens from 225 cases suspected of canine ehrlichiosis were examined for clinical pathology and presence of the haemoparasites. Overall prevalence of ehrlichiosis by microscopic examination, commercial dot-ELISA kit and nested PCR assay was estimated to be 1.3%, 19.1% and 5.8%, respectively, which were found to be statistically significant by McNemar Chi squared test (p < 0.05). It was also observed that possibly due to widespread use of doxycycline therapy in field, CME presently does not remain a potential threat which it uses to pose earlier. However, concurrent infections of E. canis and Babesia gibsoni were found to be mostly fatal. Keeping in view of high number of apparently healthy dogs (24) out of total positive cases (46) observed during the study, it is recommended that prevalence studies on CME should also involve screening of apparently healthy dogs. Phylogenetic analysis carried on partial sequencing of 16S rRNA of E. canis strains revealed that all of the Indian strains clustered in a single clade with other E. canis species from India and rest of the world. Molecular divergence was observed among the sequences of Brazilian and American isolates which were also included in the present study. These findings have thus opened a new paradigm for planning of pragmatic control strategies against CME.
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728
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Zhou Z, Pan C, Lu Y, Gao Y, Liu W, Yin P, Yu X. Combination of Erythromycin and Curcumin Alleviates Staphylococcus aureus Induced Osteomyelitis in Rats. Front Cell Infect Microbiol 2017; 7:379. [PMID: 28884090 PMCID: PMC5573719 DOI: 10.3389/fcimb.2017.00379] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/09/2017] [Indexed: 12/19/2022] Open
Abstract
Osteomyelitis is commonly caused by Staphylococcus aureus. Both erythromycin and curcumin can suppress S. aureus growth, but their roles in osteomyelitis are barely studied. We aim to explore the activities of erythromycin and curcumin against chronical osteomyelitis induced by methicillin-resistant S. aureus (MRSA). Chronicle implant-induced osteomyelitis was established by MRSA infection in male Wistar rats. Four weeks after bacterial inoculation, rats received no treatment, erythromycin monotherapy, curcumin monotherapy, or erythromycin plus curcumin twice daily for 2 weeks. Bacterial levels, bone infection status, inflammatory signals and side effects were evaluated. Rats tolerated all treatments well, with no death or side effects such as, diarrhea and weight loss. Two days after treatment completion, erythromycin monotherapy did not suppress bacterial growth and had no effect in bone infection, although it reduced serum pro-inflammatory cytokines tumor necrosis factor (TNF)-α and interleukin (IL)-6. Curcumin monotherapy slightly suppressed bacterial growth, alleviated bone infection and reduced TNF-α and IL-6. Erythromycin and curcumin combined treatment markedly suppressed bacterial growth, substantially alleviated bone infection and reduced TNF-α and IL-6. Combination of erythromycin and curcumin lead a much stronger efficiency against MRSA induced osteomyelitis in rats than monotherapy. Our study suggests that erythromycin and curcumin could be a new combination for treating MRSA induced osteomyelitis.
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Affiliation(s)
- Zubin Zhou
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Chenhao Pan
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Ye Lu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Youshui Gao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Wei Liu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Peipei Yin
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
| | - Xiaowei Yu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai, China
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729
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Seemann S, Zohles F, Lupp A. Comprehensive comparison of three different animal models for systemic inflammation. J Biomed Sci 2017; 24:60. [PMID: 28836970 PMCID: PMC5569462 DOI: 10.1186/s12929-017-0370-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/21/2017] [Indexed: 12/16/2022] Open
Abstract
Background To mimic systemic inflammation in humans, different animal models have been developed. Since these models are still discussed controversially, we aimed to comparatively evaluate the most widely used models with respect to the systemic effects, the influence on organ functions and to the underlying pathophysiological processes. Methods Systemic inflammation was induced in C57BL/6N mice with lipopolysaccharide (LPS) treatment, peritoneal contamination and infection (PCI), or cecal ligation and puncture (CLP). Blood glucose and circulating cytokine levels were evaluated at 0, 2, 4, 6, 12, 24, 48, and 72 h after induction of inflammation. Additionally, oxidative stress in various organs and liver biotransformation capacity were determined. Markers for oxidative stress, apoptosis, infiltrating immune cells, as well as cytokine expression patterns, were assessed in liver and spleen tissue by immunohistochemistry. Results Treating mice with LPS and PCI induced a very similar course of inflammation; however, LPS treatment elicited a stronger response. In both models, serum pro-inflammatory cytokine levels rapidly increased whereas blood glucose decreased. Organs showed early signs of oxidative stress, and apoptosis was increased in splenic cells. In addition, liver biotransformation capacity was reduced and there was pronounced immune cell infiltration in both the liver and spleen. Mice exposed to either LPS or PCI recovered after 72 h. In contrast, CLP treatment induced comparatively fewer effects, but a more protracted course of inflammation. Conclusions The LPS model of systemic inflammation revealed to be most suitable when being interested in the impact of new therapies for acute inflammation. When using the CLP model to mimic human sepsis more closely, a longer time course should be employed, as the treatment induces delayed development of systemic inflammation. Electronic supplementary material The online version of this article (10.1186/s12929-017-0370-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Semjon Seemann
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany.
| | - Franziska Zohles
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
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730
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Yan Y, Guan C, Du S, Zhu W, Ji Y, Su N, Mei X, He D, Lu Y, Zhang C, Xing XH. Effects of Enzymatically Depolymerized Low Molecular Weight Heparins on CCl 4-Induced Liver Fibrosis. Front Pharmacol 2017; 8:514. [PMID: 28871223 PMCID: PMC5566566 DOI: 10.3389/fphar.2017.00514] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 07/21/2017] [Indexed: 12/17/2022] Open
Abstract
With regard to identifying the effective components of LMWH drugs curing hepatic fibrosis disease, we carried out a comparative study on the efficacy of enzymatically depolymerized LMWHs on CCl4 induced mouse liver fibrosis. The results showed that the controlled enzymatic depolymerization conditions resulted in LMWHs with significantly different activities. The LMWH product depolymerized by Heparinase I (I-11) with a Mw of 7160, exhibited a significant advantage in reducing the liver inflammation by suppressing TNF-α and IL-1β secretion, and minimizing hepatic fibrogenesis. The products prepared by only Heparinase II (II-11), and combined Heparinase III and II (III-II-5) showed limited positive effect on hepatic inflammation and fibrosis. On the contrary, the products by combined Heparinase III and I (III-I-9, III-I-5) showed no effect or stimulation effect on the hepatic fibrogenesis. Our results provided the basis for structure-activity relationship insight for inhibition of liver fibrosis activities of LMWHs, which might have significant implications for generic anti-fibrosis disease drug development.
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Affiliation(s)
- Yishu Yan
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Changge Guan
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Shanshan Du
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Wenming Zhu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Yang Ji
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Nan Su
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | | | - Dong He
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Yuan Lu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Chong Zhang
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China.,Centre for Synthetic and Systems Biology, Tsinghua UniversityBeijing, China
| | - Xin-Hui Xing
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China.,Centre for Synthetic and Systems Biology, Tsinghua UniversityBeijing, China
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731
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Luo T, Lu Y, Liu S, Lin D, Qu J. Enhanced Visualization of Hematoxylin and Eosin Stained Pathological Characteristics by Phasor Approach. Anal Chem 2017; 89:9224-9231. [DOI: 10.1021/acs.analchem.7b01999] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Teng Luo
- Key
Laboratory of Optoelectronic Devices and Systems of Ministry of Education
and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yuan Lu
- Department
of Dermatology, The Sixth People’s Hospital of Shenzhen, Shenzhen 518052, China
| | - Shaoxiong Liu
- Department
of Pathology, The Sixth People’s Hospital of Shenzhen, Shenzhen 518052, China
| | - Danying Lin
- Key
Laboratory of Optoelectronic Devices and Systems of Ministry of Education
and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Junle Qu
- Key
Laboratory of Optoelectronic Devices and Systems of Ministry of Education
and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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732
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Dang Y, Waxman S, Wang C, Jensen A, Loewen RT, Bilonick RA, Loewen NA. Freeze-thaw decellularization of the trabecular meshwork in an ex vivo eye perfusion model. PeerJ 2017; 5:e3629. [PMID: 28828244 PMCID: PMC5560227 DOI: 10.7717/peerj.3629] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/10/2017] [Indexed: 12/13/2022] Open
Abstract
Objective The trabecular meshwork (TM) is the primary substrate of outflow resistance in glaucomatous eyes. Repopulating diseased TM with fresh, functional TM cells might be a viable therapeutic approach. Decellularized TM scaffolds have previously been produced by ablating cells with suicide gene therapy or saponin, which risks incomplete cell removal or dissolution of the extracellular matrix, respectively. We hypothesized that improved trabecular meshwork cell ablation would result from freeze-thaw cycles compared to chemical treatment. Materials and Methods We obtained 24 porcine eyes from a local abattoir, dissected and mounted them in an anterior segment perfusion within two hours of sacrifice. Intraocular pressure (IOP) was recorded continuously by a pressure transducer system. After 72 h of IOP stabilization, eight eyes were assigned to freeze-thaw (F) ablation (−80 °C × 2), to 0.02% saponin (S) treatment, or the control group (C), respectively. The TM was transduced with an eGFP expressing feline immunodeficiency viral (FIV) vector and tracked via fluorescent microscopy to confirm ablation. Following treatment, the eyes were perfused with standard tissue culture media for 180 h. TM histology was assessed by hematoxylin and eosin staining. TM viability was evaluated by a calcein AM/propidium iodide (PI) assay. The TM extracellular matrix was stained with Picro Sirius Red. We measured IOP and modeled it with a linear mixed effects model using a B-spline function of time with five degrees of freedom. Results F and S experienced a similar IOP reduction of 30% from baseline (P = 0.64). IOP reduction of about 30% occurred in F within 24 h and in S within 48 h. Live visualization of eGFP demonstrated that F conferred a complete ablation of all TM cells and only a partial ablation in S. Histological analysis and Picro Sirius staining confirmed that no TM cells survived in F while the extracellular matrix remained. The viability assay showed very low PI and no calcein staining in F in contrast to many PI-labeled, dead TM cells and calcein-labeled viable TM cells in S. Conclusion We developed a rapid TM ablation method that uses cyclic freezing that is free of biological or chemical agents and able to produce a decellularized TM scaffold with preserved TM extracellular matrix in an organotypic perfusion culture.
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Affiliation(s)
- Yalong Dang
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
| | - Susannah Waxman
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
| | - Chao Wang
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America.,Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China
| | - Adrianna Jensen
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
| | - Ralitsa T Loewen
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
| | - Richard A Bilonick
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
| | - Nils A Loewen
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PAUnited States of America
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733
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Buccarello L, Sclip A, Sacchi M, Castaldo AM, Bertani I, ReCecconi A, Maestroni S, Zerbini G, Nucci P, Borsello T. The c-jun N-terminal kinase plays a key role in ocular degenerative changes in a mouse model of Alzheimer disease suggesting a correlation between ocular and brain pathologies. Oncotarget 2017; 8:83038-83051. [PMID: 29137322 PMCID: PMC5669948 DOI: 10.18632/oncotarget.19886] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/12/2017] [Indexed: 11/25/2022] Open
Abstract
Recently a range of ocular manifestations such as retinal and lens amyloid-beta accumulation and retinal nerve fiber layer loss have been proposed as potential biomarkers in Alzheimer disease (AD). The TgCRND8 mouse model of AD exhibits age-dependent amyloid β (Aβ) oligomers accumulation and cognitive defects, amyloid plaques and hyperphosphorylated Tau deposition and inflammation. We proved the correlation between ocular pathologies and AD, observing increased levels of p-APP and p-Tau, accumulation of Aβ oligomers in the retina, eye, and optic nerve. The accumulation of amyloid markers was significantly stronger in the retinal ganglion cell (RGC) layer, suggesting that RGC might be more susceptible to degeneration. We detected a thinning of the RGC layer as well as RGC death in the retina of TgCRND8 mice, by using a combination of Optical Coherence Tomography (OCT), immunofluorescence, immunohistochemistry and Western blotting techniques. We proved for the first time the key role of C-Jun N-terminal Kinase (JNK) in the ocular degeneration. In support of this, the administration of the JNK inhibitor, D-JNKI1, was able to counteract the Aβ and p-Tau accumulation in the retina of TgCRND8 mice, and consequently reduce RGCs loss. These results confirm that degenerative changes in the retina/eye of AD mouse model mirrors the events observed in the brain parenchyma. Ocular changes can be detected by non-invasive imaging techniques, such as OCT, to study and test different therapeutic strategies against degenerative events associated to AD.
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Affiliation(s)
- Lucia Buccarello
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Alessandra Sclip
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Matteo Sacchi
- University Eye Clinic, San Giuseppe Hospital, University of Milan, Milan, Italy
| | | | - Ilaria Bertani
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Andrea ReCecconi
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Silvia Maestroni
- Unità Complicanze del Diabete, Istituto Scientifico San Raffaele, Milan, Italy
| | - Gianpaolo Zerbini
- Unità Complicanze del Diabete, Istituto Scientifico San Raffaele, Milan, Italy
| | - Paolo Nucci
- University Eye Clinic, San Giuseppe Hospital, University of Milan, Milan, Italy
| | - Tiziana Borsello
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy.,Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
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734
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Ogundele OM, Rosa FA, Dharmakumar R, Lee CC, Francis J. Systemic Sympathoexcitation Was Associated with Paraventricular Hypothalamic Phosphorylation of Synaptic CaMKIIα and MAPK/ErK. Front Neurosci 2017; 11:447. [PMID: 28824368 PMCID: PMC5541931 DOI: 10.3389/fnins.2017.00447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/21/2017] [Indexed: 01/16/2023] Open
Abstract
Systemic administration of adrenergic agonist (Isoproterenol; ISOP) is known to facilitate cardiovascular changes associated with heart failure through an upregulation of cardiac toll-like receptor 4 (TLR4). Furthermore, previous studies have shown that cardiac tissue-specific deletion of TLR4 protects the heart against such damage. Since the autonomic regulation of systemic cardiovascular function originates from pre-autonomic sympathetic centers in the brain, it is unclear how a systemically driven sympathetic change may affect the pre-autonomic paraventricular hypothalamic nuclei (PVN) TLR4 expression. Here, we examined how change in PVN TLR4 was associated with alterations in the neurochemical cytoarchitecture of the PVN in systemic adrenergic activation. After 48 h of intraperitoneal 150 mg/kg ISOP treatment, there was a change in PVN CaMKIIα and MAPK/ErK expression, and an increase in TLR4 in expression. This was seen as an increase in p-MAPK/ErK, and a decrease in synaptic CaMKIIα expression in the PVN (p < 0.01) of ISOP treated mice. Furthermore, there was an upregulation of vesicular glutamate transporter (VGLUT 2; p < 0.01) and a decreased expression of GABA in the PVN of Isoproterenol (ISOP) treated WT mice (p < 0.01). However, after a PVN-specific knockdown of TLR4, the effect of systemic administration of ISOP was attenuated, as indicated by a decrease in p-MAPK/ErK (p < 0.01) and upregulation of CaMKIIα (p < 0.05). Additionally, loss of inhibitory function was averted while VGLUT2 expression decreased when compared with the ISOP treated wild type mice and the control. Taken together, the outcome of this study showed that systemic adrenergic activation may alter the expression, and phosphorylation of preautonomic MAPK/ErK and CaMKIIα downstream of TLR4. As such, by outlining the roles of these kinases in synaptic function, we have identified the significance of neural TLR4 in the progression, and attenuation of synaptic changes in the pre-autonomic sympathetic centers.
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Affiliation(s)
- Olalekan M Ogundele
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary MedicineBaton Rouge, LA, United States
| | - Fernando A Rosa
- Departamento de Clínica, Cirurgia e Reprodução Animal, Faculdade de Medicina Veterinária, Universidade Estadual PaulistaAraçatuba, Brazil
| | - Rohan Dharmakumar
- Department of Biomedical Sciences, Cedars-Sinai Medical Center Biomedical Imaging Research InstituteLos Angeles, CA, United States
| | - Charles C Lee
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary MedicineBaton Rouge, LA, United States
| | - Joseph Francis
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary MedicineBaton Rouge, LA, United States
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735
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Liu D, Liu Y, Xia Z, Dong H, Yi Z. Reactive oxygen species modulator 1 regulates oxidative stress and induces renal and pulmonary fibrosis in a unilateral ureteral obstruction rat model and in HK‑2 cells. Mol Med Rep 2017; 16:4855-4862. [PMID: 28791399 PMCID: PMC5647032 DOI: 10.3892/mmr.2017.7161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 05/19/2017] [Indexed: 02/06/2023] Open
Abstract
Renal interstitial fibrosis (RIF) is the main process that leads to renal failure. It is necessary to investigate the mechanism of RIF and identify appropriate methods of regulating it. Furthermore, unilateral ureteral obstruction is a frequently used model for the study of RIF. The morphological damage associated with kidney and lung dysfunction was detected using histopathological experiments. Subsequently, high expression of reactive oxygen species (ROS) modulator 1 (ROMO1) and ROS was measured in blood serum. In addition, epithelial‑mesenchymal transition marker, transforming growth factor β (TGF‑β) and mothers against decapentaplegic homolog 2/3 expression was evaluated using the reverse transcription‑quantitative polymerase chain reaction and western blotting. All serious symptoms were relieved to a certain extent following oxidation inhibitor intervention using three common antioxidants. HK‑2 cells were treated with H2O2 to cause oxidative stress, and ROMO1 and fibrosis marker expression increased; however, activation was suppressed byROMO1 knockout. The present study provides evidence that the expression of ROMO1 induces ROS production and activates the TGF‑β signaling pathway. It may be concluded that ROMO1 helps to provide a molecular basis for improved clinical intervention and prognosis of patients.
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Affiliation(s)
- Donghai Liu
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Ying Liu
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Zhenkun Xia
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Haiyun Dong
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Zhuwen Yi
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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736
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Burnett JB, Lupu FI, Eggenschwiler JT. Proper ciliary assembly is critical for restricting Hedgehog signaling during early eye development in mice. Dev Biol 2017; 430:32-40. [PMID: 28778798 DOI: 10.1016/j.ydbio.2017.07.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/20/2017] [Accepted: 07/20/2017] [Indexed: 11/25/2022]
Abstract
Patterning of the vertebrate eye into optic stalk, retinal pigment epithelium (RPE) and neural retina (NR) territories relies on a number of signaling pathways, but how these signals are interpreted by optic progenitors is not well understood. The primary cilium is a microtubule-based organelle that is essential for Hedgehog (Hh) signaling, but it has also been implicated in the regulation of other signaling pathways. Here, we show that the optic primordium is ciliated during early eye development and that ciliogenesis is essential for proper patterning and morphogenesis of the mouse eye. Ift172 mutants fail to generate primary cilia and exhibit patterning defects that resemble those of Gli3 mutants, suggesting that cilia are required to restrict Hh activity during eye formation. Ift122 mutants, which produce cilia with abnormal morphology, generate optic vesicles that fail to invaginate to produce the optic cup. These mutants also lack formation of the lens, RPE and NR. Such phenotypic features are accompanied by strong, ectopic Hh pathway activity, evidenced by altered gene expression patterns. Removal of GLI2 from Ift122 mutants rescued several aspects of optic cup and lens morphogenesis as well as RPE and NR specification. Collectively, our data suggest that proper assembly of primary cilia is critical for restricting the Hedgehog pathway during eye formation in the mouse.
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Affiliation(s)
- Jacob B Burnett
- Department of Genetics, University of Georgia, Athens, GA 30602, United States
| | - Floria I Lupu
- Department of Genetics, University of Georgia, Athens, GA 30602, United States
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737
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Dabrowski J, Oberholster P, Steyl J, Osthoff G, Hugo A, Power DM, van Wyk JH. Thyroid function of steatitis-affected Mozambique tilapia Oreochromis mossambicus from a sub-tropical African reservoir. DISEASES OF AQUATIC ORGANISMS 2017; 125:101-113. [PMID: 28737156 DOI: 10.3354/dao03138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thyroid function and nutritional indicators were measured in obese, steatitis-affected Mozambique tilapia Oreochromis mossambicus from Loskop Reservoir (LR), South Africa. Plasma thyroid hormones (especially T3) and thyroid follicle histomorphology revealed high levels of activity in every aspect of the thyroid cascade measured in fish from LR compared to a reference population of steatitis-free fish. Concurrent measurements of nutritional state including plasma lipids, liver lipid content and hepatocyte size showed that fish from LR had significant energy stores indicative of abundant nutritional intake. There were distinct sex and seasonal differences, with the highest plasma lipids and T3 levels observed in steatitis-affected females during spring and summer. Positive correlations were observed between plasma lipids (especially cholesterol) and T3 concentrations in fish from both populations, indicating a link between lipid metabolism and thyroid function. There was no direct evidence of thyroid disruption, but this cannot be ruled out until further research determines the factors that underlie the homeostatic shift leading to elevated plasma and liver lipids and T3 levels in steatitis-affected tilapia.
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Affiliation(s)
- J Dabrowski
- Sustainability Research Unit, Nelson Mandela Metropolitan University, Private Bag x6531, George 6530, South Africa
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738
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Luo T, Lu Y, Liu S, Lin D, Qu J. Phasor-FLIM as a Screening Tool for the Differential Diagnosis of Actinic Keratosis, Bowen's Disease, and Basal Cell Carcinoma. Anal Chem 2017; 89:8104-8111. [PMID: 28661125 DOI: 10.1021/acs.analchem.7b01681] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of this study was to distinguish basal cell carcinoma (BCC) from actinic keratosis (AK) and Bowen's disease (BD) by fluorescence lifetimes of hematoxylin and eosin (H&E) and phasor analysis. Pseudocolor images of average fluorescence lifetime (τm) exhibited more contrast than conventional bright field and/or fluorescence images of H&E-stained sections. The mean values (μ) of τm distribution (τmμ) in three layers of skin were first explored for comparison with the corresponding layers of AK, BD, and BCC. Moreover, analysis of the H&E fluorescence lifetimes in the phasor space was performed by observing clusters in specific regions of the phasor plot. Various structures in the skin were distinguished. Comparisons of phase distributions from the corresponding layers of skin resulted in quantitative separation and calculation of distinctive parameters including coordinate values, diagonal slopes, and phasor areas. The combination of fluorescence lifetime imaging microscopy (FLIM) and phasor approach (phasor-FLIM) provides a simple method for histopathology analysis and can significantly improve the accuracy of bright field H&E diagnosis. We therefore believe that phasor-FLIM is an aided tool with the potential to provide rapid confirmation of diagnostic criteria and classification of histological types of skin neoplasms.
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Affiliation(s)
- Teng Luo
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University , Shenzhen, Guangdong 518060, China
| | - Yuan Lu
- Department of Dermatology, The Sixth People's Hospital of Shenzhen , Shenzhen, Guangdong 518052, China
| | - Shaoxiong Liu
- Department of Pathology, The Sixth People's Hospital of Shenzhen , Shenzhen, Guangdong 518052, China
| | - Danying Lin
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University , Shenzhen, Guangdong 518060, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University , Shenzhen, Guangdong 518060, China
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739
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Xu YJ, Elimban V, Dhalla NS. Carbon dioxide water-bath treatment augments peripheral blood flow through the development of angiogenesis. Can J Physiol Pharmacol 2017; 95:938-944. [PMID: 28704614 DOI: 10.1139/cjpp-2017-0125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, we investigated the effects of CO2 water-bath therapy on blood flow and angiogenesis in the ischemic hind limb, as well as some plasma angiogenic factors in peripheral ischemic model. The hind limb ischemia was induced by occluding the femoral artery for 2 weeks in rats and treated with or without CO2 water-bath therapy at 37 °C for 4 weeks (20 min treatment every day for 5 days per week). The peak blood flow and minimal and mean blood flow in the ischemic skeletal muscle were markedly increased by the CO2 water-bath therapy. This increase in blood flow was associated with development of angiogenesis in the muscle, as well as reduction in the ischemia-induced increase in plasma malondialdehyde levels. Although plasma vascular endothelial growth factor and nitric oxide levels were increased in animals with peripheral ischemia, the changes in these biomarkers were not affected by CO2 water-bath therapy. These results suggest that augmentation of blood flow in the ischemic hind limb by CO2 water-bath therapy may be due to the development of angiogenesis and reduction in oxidative stress.
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Affiliation(s)
- Yan-Jun Xu
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada.,Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada
| | - Vijayan Elimban
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada.,Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada
| | - Naranjan S Dhalla
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada.,Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R2H 2A6, Canada
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740
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Elimination of undifferentiated human embryonic stem cells by cardiac glycosides. Sci Rep 2017; 7:5289. [PMID: 28706279 PMCID: PMC5509667 DOI: 10.1038/s41598-017-05616-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 06/05/2017] [Indexed: 12/14/2022] Open
Abstract
An important safety concern in the use of human pluripotent stem cells (hPSCs) is tumorigenic risk, because these cells can form teratomas after an in vivo injection at ectopic sites. Several thousands of undifferentiated hPSCs are sufficient to induce teratomas in a mouse model. Thus, it is critical to remove all residue-undifferentiated hPSCs that have teratoma potential before the clinical application of hPSC-derived cells. In this study, our data demonstrated the cytotoxic effects of cardiac glycosides, such as digoxin, lanatoside C, bufalin, and proscillaridin A, in human embryonic stem cells (hESCs). This phenomenon was not observed in human bone marrow mesenchymal stem cells (hBMMSCs). Most importantly, digoxin and lanatoside C did not affect the stem cells’ differentiation ability. Consistently, the viability of the hESC-derived MSCs, neurons, and endothelium cells was not affected by the digoxin and lanatoside C treatment. Furthermore, the in vivo experiments demonstrated that digoxin and lanatoside C prevented teratoma formation. To the best of our knowledge, this study is the first to describe the cytotoxicity and tumor prevention effects of cardiac glycosides in hESCs. Digoxin and lanatoside C are also the first FDA-approved drugs that demonstrated cytotoxicity in undifferentiated hESCs.
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741
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Wang X, Wang X, Jia Y, Wang C, Han Q, Lu ZH, Yang Z. Adenoviral-expressed recombinant granulocyte monocyte colony-stimulating factor (GM-CSF) enhances protective immunity induced by inactivated Newcastle Disease Virus (NDV) vaccine. Antiviral Res 2017; 144:322-329. [PMID: 28698014 DOI: 10.1016/j.antiviral.2017.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 06/30/2017] [Accepted: 07/07/2017] [Indexed: 11/30/2022]
Abstract
Although vaccination has been hugely successful in protecting birds against infection by the New castle disease virus (NDV), newly-emerged highly virulent strains have been found to overcome established immune protection and threaten the poultry industry. The need to improve the immunization efficacy is, therefore, urgent. Here, we tested the potential immunostimulatory adjuvant activity of the adenoviral-expressed recombinant chicken granulocyte monocyte colony stimulating factor (rchGM-CSF) in an inactivated Newcastle Disease Virus (NDV) vaccine. 126 commercial layer chicks, divided into six groups, were first vaccinated at day 7, followed by a subsequent boost and later an intramuscular challenge at day 21 and 35 respectively. rchGM-CSF expressed by adenovirus raised NDV-specific hemagglutinin-inhibition (HI) titers from 10 to 12 (log2) and significantly upregulated the production of interferon α/β/γ (IFN-α/β/γ), interleukin-4 (IL-4) and major histocompatibility complex II (MHC-II) in spleens. Crucially, chicks inoculated with the inactivated NDV vaccine plus the rchGM-CSF adjuvant displayed only mild clinical signs, lower tissue viral loads, fewer tissue lesions, and decreased mortality and viral shedding than those in the group immunized with the vaccine alone. Our present work has demonstrated that chicken GM-CSF may act as an enhancer in the orchestration of host immune responses induced by the inactivated NDV vaccine. The molecule, expressed by an adenovirus, has the potential to be used as an immune adjuvant to improve protection by NDV vaccination.
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Affiliation(s)
- Xinglong Wang
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Xiangwei Wang
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Yanqing Jia
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Chongyang Wang
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Qinqsong Han
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Zen H Lu
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410, Brunei Darussalam
| | - Zengqi Yang
- Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
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742
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Shukla A, Trivedi SP. Anionic Surfactant, Linear Alkyl Benzene Sulphonate Induced Oxidative Stress and Hepatic Impairments in Fish Channa punctatus. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s12595-017-0223-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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743
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Thankam FG, Boosani CS, Dilisio MF, Agrawal DK. MicroRNAs associated with inflammation in shoulder tendinopathy and glenohumeral arthritis. Mol Cell Biochem 2017. [PMID: 28634854 DOI: 10.1007/s11010-017-3097-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Inflammation is associated with glenohumeral arthritis and rotator cuff tendon tears. Epigenetically, miRNAs tightly regulate various genes involved in the inflammatory response. Alterations in the expression profile of miRNAs and the elucidation of their target genes with respect to the pathophysiology could improve the understanding of their regulatory role and therapeutic potential. Here, we screened key miRNAs that mediate inflammation and linked with JAK2/STAT3 pathway with respect to the coincidence of glenohumeral arthritis in patients suffering from rotator cuff injury (RCI). Human resected long head of the biceps tendons were examined for miRNA profile from two groups of patients: Group 1 included the patients with glenohumeral arthritis and massive rotator cuff tears and the Group 2 patients did not have arthritis or rotator cuff tears. The miRNA profiling revealed that 235 miRNAs were highly altered (fold change less than -3 and greater than +2 were considered). Data from the NetworkAnalyst program revealed the involvement and interaction between 3,430 different genes associated with inflammation out of which 284 genes were associated with JAK2/STAT3 pathway and interconnect 120 different pathways of inflammation. Around 1,500 miRNAs were found to play regulatory role associated with these genes of inflammatory responses and 77 miRNAs were found to regulate more than 10 genes. Among them, 25 genes with less than tenfold change were taken to consideration which altogether constitute for the regulation of 102 genes. Targeting these miRNAs and the underlying regulatory mechanisms may advance our knowledge to develop promising therapies in the management of shoulder tendon pathology.
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Affiliation(s)
- Finosh G Thankam
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Chandra S Boosani
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Matthew F Dilisio
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA.,Department of Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, USA
| | - Devendra K Agrawal
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA. .,The Peekie Nash Carpenter Endowed Chair in Medicine, Department of Clinical & Translational Science, CRISS II Room 510, 2500 California Plaza, Omaha, NE, 68178, USA.
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744
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Lin YC, Lin CH, Yao HT, Kuo WW, Shen CY, Yeh YL, Ho TJ, Padma VV, Lin YC, Huang CY, Huang CY. Platycodon grandiflorum (PG) reverses angiotensin II-induced apoptosis by repressing IGF-IIR expression. JOURNAL OF ETHNOPHARMACOLOGY 2017; 205:41-50. [PMID: 28473244 DOI: 10.1016/j.jep.2017.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Platycodon grandiflorum (PG) is a Chinese medical plant used for decades as a traditional prescription to eliminate phlegm, relieve cough, reduce inflammation and lower blood pressure. PG also has a significant effect on the cardiovascular systems. MATERIALS AND METHODS The aqueous extract of Platycodon grandiflorum (JACQ.) A. DC. root was screened for inhibiting Ang II-induced IGF-IIR activation and apoptosis pathway in H9c2 cardiomyocytes. The effects were also studied in spontaneously hypertensive rats (five groups, n=5) using low and high doses of PG for 50 days. The Ang II-induced IGF-IIR activation was analyzed by luciferase reporter, RT-PCR, western blot and surface IGF-IIR expression assay. Furthermore, the major active constituent of PG was carried out by high performance liquid chromatography-mass spectrometry (HPLC-MS). RESULTS Our results indicate that a crude extract of PG significantly suppresses the Ang II-induced IGF-IIR signaling pathway to prevent cardiomyocyte apoptosis. PG extract inhibits Ang II-mediated JNK activation and SIRT1 degradation to reduce IGF-IIR activity. Moreover, PG maintains SIRT1 stability to enhance HSF1-mediated IGF-IIR suppression, which prevents cardiomyocyte apoptosis. In animal models, the administration of PG markedly reduced this apoptotic pathway in the heart of SHRs. CONCLUSION Taken together, PG may be considered as an effective treatment for cardiac diseases in hypertensive patients.
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Affiliation(s)
- Yuan-Chuan Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Hsueh Lin
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Hsien-Tsung Yao
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chia-Yao Shen
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan; Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Taichung, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore 641046, India
| | - Yu-Chen Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan; Department of Biological Science, Asia University, Taichung, Taiwan; Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, District 7, 700000 Ho Chi Minh City, Vietnam.
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745
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Lu Y, Mao F, Li X, Zheng X, Wang M, Xu Q, Zhu J, Li J. Discovery of Potent, Selective Stem Cell Factor Receptor/Platelet Derived Growth Factor Receptor Alpha (c-KIT/PDGFRα) Dual Inhibitor for the Treatment of Imatinib-Resistant Gastrointestinal Stromal Tumors (GISTs). J Med Chem 2017; 60:5099-5119. [DOI: 10.1021/acs.jmedchem.7b00468] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yanli Lu
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Fei Mao
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaokang Li
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyu Zheng
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Manjiong Wang
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Qing Xu
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jin Zhu
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jian Li
- Shanghai Key Laboratory
of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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746
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Sisto M, Lorusso L, Ingravallo G, Lisi S. Exocrine Gland Morphogenesis: Insights into the Role of Amphiregulin from Development to Disease. Arch Immunol Ther Exp (Warsz) 2017; 65:477-499. [DOI: 10.1007/s00005-017-0478-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 06/02/2017] [Indexed: 12/12/2022]
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747
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Weber J, Behn H, Freick M. A rare case of monozygotic iniodymic diprosopiasis in a German Holstein calf. Tierarztl Prax Ausg G Grosstiere Nutztiere 2017; 45:160724. [PMID: 28585657 DOI: 10.15653/tpg-160724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/30/2016] [Indexed: 11/22/2022]
Abstract
Craniofacial duplication abnormity is a rare phenomenon in buiatric practice. This report attends to a male German Holstein calf which could be classified as a diprosopic iniodymus. A fetus exhibiting a doubled face was delivered after fetotomy. To our knowledge, this is the first description of diprosopiasis with two cranial cavities as well as two separate encephala in a calf showing the potential extent of duplication. Throughout this work also the question is answered of whether this malformation in a bovine species arose from one embryo or rather, there is a dizygotic background by genotyping of tissue samples from both parts of the diprosopus. Regarding etiology, not only hereditary dispositions including among others a failed function of the signaling molecule Sonic hedgehog mediating regulation of craniofacial morphogenesis, but also incompletely separated monozygotic twins are discussed.
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Affiliation(s)
- Jim Weber
- Jim Weber, Veterinary Practice Zettlitz, Straße der Jugend 68, 09306 Zettlitz, Germany,
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748
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Al-Amer O. Bone marker gene expression in calvarial bones: different bone microenvironments. ACTA ACUST UNITED AC 2017; 24:9. [PMID: 28523251 PMCID: PMC5434628 DOI: 10.1186/s40709-017-0066-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Accepted: 04/20/2017] [Indexed: 01/16/2023]
Abstract
Background In calvarial mice, mesenchymal stem cells (MSCs) differentiate into osteoprogenitor cells and then differentiate into osteoblasts that differentiate into osteocytes, which become embedded within the bone matrix. In this case, the cells participating in bone formation include MSCs, osteoprogenitor cells, osteoblasts and osteocytes. The calvariae of C57BL/KaLwRijHsD mice consist of the following five bones: two frontal bones, two parietal bones and one interparietal bone. This study aimed to analyse some bone marker genes and bone related genes to determine whether these calvarial bones have different bone microenvironments. Methods C57BL/KaLwRijHsD calvariae were carefully excised from five male mice that were 4–6 weeks of age. Frontal, parietal, and interparietal bones were dissected to determine the bone microenvironment in calvariae. Haematoxylin and eosin staining was used to determine the morphology of different calvarial bones under microscopy. TaqMan was used to analyse the relative expression of Runx2, OC, OSX, RANK, RANKL, OPG, N-cadherin, E-cadherin, FGF2 and FGFR1 genes in different parts of the calvariae. Results Histological analysis demonstrated different bone marrow (BM) areas between the different parts of the calvariae. The data show that parietal bones have the smallest BM area compared to frontal and interparietal bones. TaqMan data show a significant increase in the expression level of Runx2, OC, OSX, RANKL, OPG, FGF2 and FGFR1 genes in the parietal bones compared with the frontal and interparietal bones of calvariae. Conclusion This study provides evidence that different calvarial bones, frontal, parietal and interparietal, contain different bone microenvironments.
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Affiliation(s)
- Osama Al-Amer
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
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749
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Song EH, Jeong SH, Park JU, Kim S, Kim HE, Song J. Polyurethane-silica hybrid foams from a one-step foaming reaction, coupled with a sol-gel process, for enhanced wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629091 DOI: 10.1016/j.msec.2017.05.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Polyurethane (PU)-based dressing foams have been widely used due to their excellent water absorption capability, optimal mechanical properties, and unequaled economic advantage. However, the low bioactivity and poor healing capability of PU limit the applications of PU dressings in complex wound healing cases. To resolve this problem, this study was carried out the hybridization of bioactive silica nanoparticles with PU through a one-step foaming reaction that is coupled with the sol-gel process. The hybridization with silica did not affect the intrinsically porous microstructure of PU foams with silica contents of up to 10wt% and where 5-60nm silica nanoparticles were well dispersed in the PU matrix, despite slight agglomerations. The incorporated silica enhanced the mechanical performance of PU by proffering better flexibility and durability as well as maintaining good water absorption capabilities and the WVTR characteristics of pure PU foam. The silica of PU-10wt% Si foams was gradually dissolved and released under physiological conditions during a 14-day immersion period. The in vitro cell attachment and proliferation tests showed significant improvements in terms of the biocompatibility of PU-Si hybrid foams and demonstrated the effects of silica on cell growth. More significantly, the superior healing capability of PU-Si as a wound dressing in comparison to PU-treated wounds was verified through in vivo animal tests. Full-thickness wounds treated with PU-Si foams exhibited faster wound closure rates as well as accelerated collagen and elastin fiber regeneration in newly formed dermis, which was ultimately completely covered by a new epithelial layer. It is clear that PU-Si hybrid foams have considerable potential as a wound dressing material geared for accelerated, superior wound healing.
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Affiliation(s)
- Eun-Ho Song
- Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea
| | - Seol-Ha Jeong
- Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea
| | - Ji-Ung Park
- Department of Plastic and Reconstructive Surgery, Seoul National University Boramae Hospital, 5 Gil 20, Boramae-ro, Dongjak-Gu, Seoul 156-707, Republic of Korea
| | - Sukwha Kim
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, Seoul 110-744, Republic of Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea; Advanced Institutes of Convergence Technology, Seoul National University, Gwanggyo, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-270, Republic of Korea.
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore.
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750
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Jiao D, Wong CK, Tsang MSM, Chu IMT, Liu D, Zhu J, Chu M, Lam CWK. Activation of Eosinophils Interacting with Bronchial Epithelial Cells by Antimicrobial Peptide LL-37: Implications in Allergic Asthma. Sci Rep 2017; 7:1848. [PMID: 28500314 PMCID: PMC5431911 DOI: 10.1038/s41598-017-02085-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 04/05/2017] [Indexed: 01/21/2023] Open
Abstract
The role of antimicrobial peptide LL-37 in asthma exacerbation is unclear. Microbial infection, which is the most common inducer of asthma exacerbation, is accompanied by elevated LL-37. The present study found that co-culture of eosinophils and bronchial epithelial cell line BEAS-2B significantly enhanced intercellular adhesion molecule-1 on both cells and CD18 expression on eosinophils upon LL-37 stimulation. IL-6, CXCL8 and CCL4 were substantially released in co-culture in the presence of LL-37. LL-37 triggered the activation of eosinophils interacting with BEAS-2B cells in a P2X purinoceptor 7/epidermal growth factor receptor-dependent manner. Eosinophils and BEAS-2B cells differentially contribute to the expression of cytokines/chemokines in co-culture, while soluble mediators were sufficient to mediate the intercellular interactions. Intracellular p38-mitogen-activated protein kinase, extracellular signal-regulated kinase and NF-κB signaling pathways were essential for LL-37-mediated activation of eosinophils and BEAS-2B cells. By using the ovalbumin-induced asthmatic model, intranasal administration of mCRAMP (mouse ortholog of LL-37) in combination with ovalbumin during the allergen challenge stage significantly enhanced airway hyperresponsiveness and airway inflammation in sensitized mice, thereby implicating a deteriorating role of LL-37 in allergic asthma. This study provides evidence of LL-37 in triggering asthma exacerbation via the activation of eosinophils interacting with bronchial epithelial cells in inflammatory airway.
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Affiliation(s)
- Delong Jiao
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Chun-Kwok Wong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China. .,Institute of Chinese Medicine and State Key Laboratory of Phytochemistry and Plant Resources in West China, the Chinese University of Hong Kong, Hong Kong, China. .,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
| | - Miranda Sin-Man Tsang
- Institute of Chinese Medicine and State Key Laboratory of Phytochemistry and Plant Resources in West China, the Chinese University of Hong Kong, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Ida Miu-Ting Chu
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Dehua Liu
- Institute of Chinese Medicine and State Key Laboratory of Phytochemistry and Plant Resources in West China, the Chinese University of Hong Kong, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Jing Zhu
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Man Chu
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Christopher Wai-Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
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