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Chen W, Geng D, Xu XQ, Hu WT, Dai YM, Wu FY, Zhu LN. Characterization of parotid gland tumors using diffusion-relaxation correlation spectrum imaging: a preliminary study. Clin Radiol 2024; 79:e878-e884. [PMID: 38582630 DOI: 10.1016/j.crad.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/19/2024] [Accepted: 02/20/2024] [Indexed: 04/08/2024]
Abstract
AIM To assess the performance of diffusion-relaxation correlation spectrum imaging (DR-CSI) in the characterization of parotid gland tumors. MATERIALS AND METHODS Twenty-five pleomorphic adenomas (PA) patients, 9 Warthin's tumors (WT) patients and 7 malignant tumors (MT) patients were prospectively recruited. DR-CSI (7 b-values combined with 5 TEs, totally 35 diffusion-weighted images) was scanned for pre-treatment assessment. Diffusion (D)-T2 signal spectrum summating all voxels were built for each patient, characterized by D-axis with range 0∼5 × 10-3 mm2/s, and T2-axis with range 0∼300ms. With boundaries of 0.5 and 2.5 × 10-3 mm2/s for D, all spectra were divided into three compartments labeled A (low D), B (mediate D) and C (high D). Volume fractions acquired from each compartment (VA, VB, VC) were compared among PA, WT and MT. Diagnostic performance was assessed using receiver operating characteristic analysis and area under the curve (AUC). RESULTS Each subtype of parotid tumors had their specific D-T2 spectrum. PA showed significantly lower VA (8.85 ± 4.77% vs 20.68 ± 10.85%), higher VB (63.40 ± 8.18% vs 43.05 ± 7.16%), and lower VC (27.75 ± 8.51% vs 36.27 ± 11.09) than WT (all p<0.05). VB showed optimal diagnostic performance (AUC 0.969, sensitivity 92.00%, specificity 100.00%). MT showed significantly higher VA (21.23 ± 12.36%), lower VB (37.09 ± 6.43%), and higher VC (41.68 ± 13.72%) than PA (all p<0.05). Similarly, VB showed optimal diagnostic performance (AUC 0.994, sensitivity 96.00%, specificity 100.00%). No significant difference of VA, VB and VC was found between WT and MT. CONCLUSIONS DR-CSI might be a promising and non-invasive way for characterizing parotid gland tumors.
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Affiliation(s)
- W Chen
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - D Geng
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X-Q Xu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - W-T Hu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Y-M Dai
- School of Biomedical Engineering, ShanghaiTech University, Shanghai, China
| | - F-Y Wu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - L-N Zhu
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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2
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Geng D, Lin R, Wei P, Tang C, Xu Y, Wang L. The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in Osteoarthritis. Med Sci Monit 2024; 30:e943738. [PMID: 38664941 PMCID: PMC11060003 DOI: 10.12659/msm.943738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/22/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND The pathological mechanism of osteoarthritis is still unclear. The regulation of the immune microenvironment has been of growing interest in the progression and treatment of osteoarthritis. Macrophages with different phenotypes, producing different cytokines, have been linked to the mechanism of cartilage injury in osteoarthritis. Copper ions play a role in the immune response and are involved in the pathological mechanisms of osteoarthritis by affecting the metabolism of the cartilage matrix. Bioactive glass (BG) is an osteogenic material with superior biocompatibility. Here, we report on the regulatory behavior of macrophages using a copper-based composite BG material. MATERIAL AND METHODS Cu-BGC powder was prepared by sol-gel method, and scaffolds were fabricated and characterized using 3D printing. Macrophage cultures grown with Cu-BGC were examined for cell culture and proliferation. The effect of Cu-BGC on the degradation metabolism of chondrocytes, cultured in the environment of inflammatory cytokine IL-1ß, was determined. In addition, the morphology of macrophages, secretion of inflammatory cytokines, and expression of surface markers were examined. RESULTS The results show that Cu-BGC promotes macrophage proliferation at a range of concentrations and increases the secretion of anti-inflammatory cytokines while inhibiting proinflammatory cytokines. At the same time, M2-type cell surface markers are definitely expressed and the morphology of macrophages is altered. In addition, Cu-BGC inhibited the degradation metabolism of chondrocytes in the inflammatory environment induced by IL-1ß. CONCLUSIONS These results suggest that Cu-BGC induced macrophage polarization into an M2 type anti-inflammatory phenotype, and inhibition of immune injury response may play a role in delaying cartilage matrix damage in osteoarthritis.
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Affiliation(s)
- Dawei Geng
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Rongcai Lin
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Peiran Wei
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Cheng Tang
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Yan Xu
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Liming Wang
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, PR China
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3
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Lützhøft DO, Sinioja T, Christoffersen BØ, Jakobsen RR, Geng D, Ahmad HFB, Straarup EM, Pedersen KM, Kot W, Pedersen HD, Cirera S, Hyötyläinen T, Nielsen DS, Hansen AK. Marked gut microbiota dysbiosis and increased imidazole propionate are associated with a NASH Göttingen Minipig model. BMC Microbiol 2022; 22:287. [DOI: 10.1186/s12866-022-02704-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 11/11/2022] [Indexed: 12/03/2022] Open
Abstract
Abstract
Background
Gut microbiota dysbiosis is associated with the development of non-alcoholic steatohepatitis (NASH) through modulation of gut barrier, inflammation, lipid metabolism, bile acid signaling and short-chain fatty acid production. The aim of this study was to describe the impact of a choline-deficient amino acid defined high fat diet (CDAHFD) on the gut microbiota in a male Göttingen Minipig model and on selected pathways implicated in the development of NASH.
Results
Eight weeks of CDAHFD resulted in a significantly altered colon microbiota mainly driven by the bacterial families Lachnospiraceae and Enterobacteriaceae, being decreased and increased in relative abundance, respectively. Metabolomics analysis revealed that CDAHFD decreased colon content of short-chain fatty acid and increased colonic pH. In addition, serum levels of the microbially produced metabolite imidazole propionate were significantly elevated as a consequence of CDAHFD feeding. Hepatic gene expression analysis showed upregulation of mechanistic target of rapamycin (mTOR) and Ras Homolog, MTORC1 binding in addition to downregulation of insulin receptor substrate 1, insulin receptor substrate 2 and the glucagon receptor in CDAHFD fed minipigs. Further, the consequences of CDAHFD feeding were associated with increased levels of circulating cholesterol, bile acids, and glucagon but not total amino acids.
Conclusions
Our results indicate imidazole propionate as a new potentially relevant factor in relation to NASH and discuss the possible implication of gut microbiota dysbiosis in the development of NASH. In addition, the study emphasizes the need for considering the gut microbiota and its products when developing translational animal models for NASH.
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4
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Sen P, Govaere O, Sinioja T, McGlinchey A, Geng D, Ratziu V, Bugianesi E, Schattenberg JM, Vidal-Puig A, Allison M, Cockell S, Daly AK, Hyötyläinen T, Anstee QM, Orešič M. Quantitative modeling of human liver reveals dysregulation of glycosphingolipid pathways in nonalcoholic fatty liver disease. iScience 2022; 25:104949. [PMID: 36065182 PMCID: PMC9440293 DOI: 10.1016/j.isci.2022.104949] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/21/2022] [Accepted: 08/11/2022] [Indexed: 11/09/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is an increasingly prevalent disease that is associated with multiple metabolic disturbances, yet the metabolic pathways underlying its progression are poorly understood. Here, we studied metabolic pathways of the human liver across the full histological spectrum of NAFLD. We analyzed whole liver tissue transcriptomics and serum metabolomics data obtained from a large, prospectively enrolled cohort of 206 histologically characterized patients derived from the European NAFLD Registry and developed genome-scale metabolic models (GEMs) of human hepatocytes at different stages of NAFLD. We identified several metabolic signatures in the liver and blood of these patients, specifically highlighting the alteration of vitamins (A, E) and glycosphingolipids, and their link with complex glycosaminoglycans in advanced fibrosis. Furthermore, we derived GEMs and identified metabolic signatures of three common NAFLD-associated gene variants (PNPLA3, TM6SF2, and HSD17B13). The study demonstrates dysregulated liver metabolic pathways which may contribute to the progression of NAFLD.
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Affiliation(s)
- Partho Sen
- School of Medical Sciences, Örebro University, 70281 Örebro, Sweden
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Olivier Govaere
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Tim Sinioja
- Department of Chemistry, Örebro University, 70281 Örebro, Sweden
| | - Aidan McGlinchey
- School of Medical Sciences, Örebro University, 70281 Örebro, Sweden
| | - Dawei Geng
- Department of Chemistry, Örebro University, 70281 Örebro, Sweden
| | - Vlad Ratziu
- Assistance Publique-Hôpitaux de Paris, hôpital Beaujon, University Paris-Diderot, Paris, France
| | - Elisabetta Bugianesi
- Department of Medical Sciences, Division of Gastro-Hepatology, A.O. Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - Jörn M. Schattenberg
- Metabolic Liver Research Programm, Department of Medicine, University Hospital Mainz, Mainz, Germany
| | - Antonio Vidal-Puig
- University of Cambridge Metabolic Research Laboratories, Wellcome-MRC Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK
| | - Michael Allison
- Liver Unit, Department of Medicine, Cambridge Biomedical Research Centre, Cambridge University NHS Foundation Trust, UK
| | - Simon Cockell
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Ann K. Daly
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | | | - Quentin M. Anstee
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Newcastle NIHR Biomedical Research Center, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Matej Orešič
- School of Medical Sciences, Örebro University, 70281 Örebro, Sweden
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
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5
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Liu NQ, Chen S, Geng D, Lei J, Zhang J, Li L, Lin Y, Ouyang Y, Shkhyan R, Van Handel B, Bian F, Mkaratigwa T, Chai Y, Evseenko D. Local Drug-Induced Modulation of gp130 Receptor Signaling Delays Disease Progression in a Pig Model of Temporo-Mandibular Joint Osteoarthritis. Front Dent Med 2022. [DOI: 10.3389/fdmed.2022.937819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Temporomandibular joint disorders (TMJs) are a multifaceted group of chronic disorders characterized by stiffness in the jaw, limited jaw mobility and pain when opening or closing the mouth. TMJs are relatively common, with incidence rates in the range of 5–12%, with nearly twice as many women as men being affected. One of the primary causes of TMJs is a degenerative disease of joints, such as osteoarthritis (OA), characterized by progressive loss of cartilage which causes stiffness, swelling, and pain. Currently, there are no disease-modifying agents on the market for OA. We have recently discovered a small molecule, R805 acting as a modulator of glycoprotein 130 (gp130) receptor for IL-6 family of cytokines. R805 enables regenerative outputs of endogenous joint stem and progenitor cells through immunomodulation in the joint microenvironment by reducing the levels of destructive cytokines and supporting chondrocyte survival and anabolism. Extensive testing has shown R805 to be safe at doses far above the therapeutic level. Here, we have conducted a pivotal efficacy study in our newly-established pig model of TMJ post-traumatic OA. IA injection of R805 has shown a highly significant reduction of articular cartilage degeneration, reduced synovitis and degenerative changes in subchondral bone in the mandibular condyle compared to the vehicle-treated group. These data will support additional pre-clinical development of R805 as a first-in-class injectable therapeutic for TMJ osteoarthritis.
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6
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McGlinchey AJ, Govaere O, Geng D, Ratziu V, Allison M, Bousier J, Petta S, de Oliviera C, Bugianesi E, Schattenberg JM, Daly AK, Hyötyläinen T, Anstee QM, Orešič M. Metabolic signatures across the full spectrum of nonalcoholic fatty liver disease. JHEP Reports 2022; 4:100477. [PMID: 35434590 PMCID: PMC9006858 DOI: 10.1016/j.jhepr.2022.100477] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 12/29/2022]
Affiliation(s)
| | - Olivier Govaere
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Dawei Geng
- Department of Chemistry, Örebro University, Örebro, Sweden
| | - Vlad Ratziu
- Assistance Publique-Hôpitaux de Paris, Hôpital Beaujon, University Paris-Diderot, Paris, France
| | - Michael Allison
- Liver Unit, Department of Medicine, Cambridge Biomedical Research Centre, Cambridge University NHS Foundation Trust, Cambridge, UK
| | - Jerome Bousier
- Hepato-Gastroenterology Department, Angers University Hospital, Angers, France
| | - Salvatore Petta
- Dipartimento Biomedico di Medicina Interna e Specialistica Di.Bi.M.I.S, University of Palermo, Palermo, Italy
| | | | - Elisabetta Bugianesi
- Department of Medical Sciences, Division of Gastro-Hepatology, A.O. Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | | | - Ann K. Daly
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | | | - Quentin M. Anstee
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
- Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne Hospitals, NHS Foundation Trust, Newcastle upon Tyne, UK
- Corresponding authors. Addresses: Translational and Clinical Research Institute, The Medical School, Newcastle University, 4th Floor, William Leech Building, Framlington Place, Newcastle-upon-Tyne, NE2 4HH, UK. Tel.: + 44-0-191-208-7012
| | - Matej Orešič
- School of Medical Sciences, Örebro University, Örebro, Sweden
- Turku Bioscience, University of Turku and Åbo Akademi University, Turku, Finland
- School of Medical Sciences, Örebro University, Örebro, Sweden. Tel.: +358-0-44-9726094.
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7
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Liu NQ, Lin Y, Li L, Lu J, Geng D, Zhang J, Jashashvili T, Buser Z, Magallanes J, Tassey J, Shkhyan R, Sarkar A, Lopez N, Lee S, Lee Y, Wang L, Petrigliano FA, Van Handel B, Lyons K, Evseenko D. Author Correction: gp130/STAT3 signaling is required for homeostatic proliferation and anabolism in postnatal growth plate and articular chondrocytes. Commun Biol 2022; 5:200. [PMID: 35217719 PMCID: PMC8881627 DOI: 10.1038/s42003-022-03167-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- Nancy Q. Liu
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Yucheng Lin
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.412676.00000 0004 1799 0784Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006 Jiangsu China ,grid.263826.b0000 0004 1761 0489Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009 Jiangsu China
| | - Liangliang Li
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.412676.00000 0004 1799 0784Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006 Jiangsu China ,grid.89957.3a0000 0000 9255 8984Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, 211100 Jiangsu China
| | - Jinxiu Lu
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Dawei Geng
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.412676.00000 0004 1799 0784Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006 Jiangsu China ,grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Sir Run Run Hospital, Nanjing Medical University, Nanjing, 211166 Jiangsu China
| | - Jiankang Zhang
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.13291.380000 0001 0807 1581State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 610041 Chengdu, China
| | - Tea Jashashvili
- grid.42505.360000 0001 2156 6853Department of Radiology, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Zorica Buser
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Jenny Magallanes
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Jade Tassey
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Ruzanna Shkhyan
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Arijita Sarkar
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Noah Lopez
- grid.19006.3e0000 0000 9632 6718Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California Los Angles (UCLA), Los Angeles, CA USA
| | - Siyoung Lee
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Youngjoo Lee
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Liming Wang
- grid.412676.00000 0004 1799 0784Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006 Jiangsu China ,grid.89957.3a0000 0000 9255 8984Institute of Digital Medicine, Nanjing Medical University, Nanjing, 210006 Jiangsu China
| | - Frank A. Petrigliano
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.42505.360000 0001 2156 6853Department of Stem Cell Research and Regenerative Medicine, USC, Los Angeles, CA 90033 USA
| | - Ben Van Handel
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Karen Lyons
- grid.19006.3e0000 0000 9632 6718Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California Los Angles (UCLA), Los Angeles, CA USA
| | - Denis Evseenko
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.42505.360000 0001 2156 6853Department of Stem Cell Research and Regenerative Medicine, USC, Los Angeles, CA 90033 USA
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8
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Liu NQ, Lin Y, Li L, Lu J, Geng D, Zhang J, Jashashvili T, Buser Z, Magallanes J, Tassey J, Shkhyan R, Sarkar A, Lopez N, Lee S, Lee Y, Wang L, Petrigliano FA, Van Handel B, Lyons K, Evseenko D. gp130/STAT3 signaling is required for homeostatic proliferation and anabolism in postnatal growth plate and articular chondrocytes. Commun Biol 2022; 5:64. [PMID: 35039652 PMCID: PMC8763901 DOI: 10.1038/s42003-021-02944-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/03/2021] [Indexed: 02/05/2023] Open
Abstract
Growth of long bones and vertebrae is maintained postnatally by a long-lasting pool of progenitor cells. Little is known about the molecular mechanisms that regulate the output and maintenance of the cells that give rise to mature cartilage. Here we demonstrate that postnatal chondrocyte-specific deletion of a transcription factor Stat3 results in severely reduced proliferation coupled with increased hypertrophy, growth plate fusion, stunting and signs of progressive dysfunction of the articular cartilage. This effect is dimorphic, with females more strongly affected than males. Chondrocyte-specific deletion of the IL-6 family cytokine receptor gp130, which activates Stat3, phenocopied Stat3-deletion; deletion of Lifr, one of many co-receptors that signals through gp130, resulted in a milder phenotype. These data define a molecular circuit that regulates chondrogenic cell maintenance and output and reveals a pivotal positive function of IL-6 family cytokines in the skeletal system with direct implications for skeletal development and regeneration.
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Affiliation(s)
- Nancy Q. Liu
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Yucheng Lin
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006 China ,grid.263826.b0000 0004 1761 0489Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009 China
| | - Liangliang Li
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006 China ,grid.89957.3a0000 0000 9255 8984Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, Jiangsu 211100 China
| | - Jinxiu Lu
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Dawei Geng
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006 China ,grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166 China
| | - Jiankang Zhang
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.13291.380000 0001 0807 1581State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 China
| | - Tea Jashashvili
- grid.42505.360000 0001 2156 6853Department of Radiology, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Zorica Buser
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Jenny Magallanes
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Jade Tassey
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Ruzanna Shkhyan
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Arijita Sarkar
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Noah Lopez
- grid.19006.3e0000 0000 9632 6718Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California Los Angles (UCLA), Los Angeles, CA USA
| | - Siyoung Lee
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Youngjoo Lee
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Liming Wang
- grid.89957.3a0000 0000 9255 8984Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006 China ,grid.89957.3a0000 0000 9255 8984Institute of Digital Medicine, Nanjing Medical University, Nanjing, Jiangsu 210006 China
| | - Frank A. Petrigliano
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.42505.360000 0001 2156 6853Department of Stem Cell Research and Regenerative Medicine, USC, Los Angeles, CA 90033 USA
| | - Ben Van Handel
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA
| | - Karen Lyons
- grid.19006.3e0000 0000 9632 6718Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California Los Angles (UCLA), Los Angeles, CA USA
| | - Denis Evseenko
- grid.42505.360000 0001 2156 6853Department of Orthopaedic Surgery, Keck School of Medicine of USC, University of Southern California (USC), Los Angeles, CA 90033 USA ,grid.42505.360000 0001 2156 6853Department of Stem Cell Research and Regenerative Medicine, USC, Los Angeles, CA 90033 USA
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9
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Einsele H, Parekh S, Madduri D, Santomasso B, Pérez-Larraya JG, Donk NWV, Arnulf B, Mateos M, Braganca KC, Varsos H, Carrasco-Alfonso MJ, Akram M, Lendvai N, Jackson CC, Olyslager Y, Zudaire E, Li C, Geng D, Jakubowiak A, Cohen A. INCIDENCE, MITIGATION, AND MANAGEMENT OF NEUROLOGIC ADVERSE EVENTS IN PATIENTS WITH MULTIPLE MYELOMA TREATED WITH CILTACABTAGENE AUTOLEUCEL (CILTA-CEL) IN CARTITUDE-2. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Yan N, Guo S, Li M, Huang S, Guo Q, Geng D, Zhang H, Li X. 1659P Immune checkpoint inhibitors plus VEGF tyrosine kinase inhibitors as second-line or later therapy for patients with extensive stage small cell lung cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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11
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Holster S, Repsilber D, Geng D, Hyötyläinen T, Salonen A, Lindqvist CM, Rajan SK, de Vos WM, Brummer RJ, König J. Correlations between microbiota and metabolites after faecal microbiota transfer in irritable bowel syndrome. Benef Microbes 2020; 12:17-30. [PMID: 33350360 DOI: 10.3920/bm2020.0010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Faecal microbiota transfer (FMT) consists of the infusion of donor faecal material into the intestine of a patient with the aim to restore a disturbed gut microbiota. In this study, it was investigated whether FMT has an effect on faecal microbial composition, its functional capacity, faecal metabolite profiles and their interactions in 16 irritable bowel syndrome (IBS) patients. Faecal samples from eight different time points before and until six months after allogenic FMT (faecal material from a healthy donor) as well as autologous FMT (own faecal material) were analysed by 16S RNA gene amplicon sequencing and gas chromatography coupled to mass spectrometry (GS-MS). The results showed that the allogenic FMT resulted in alterations in the microbial composition that were detectable up to six months, whereas after autologous FMT this was not the case. Similar results were found for the functional profiles, which were predicted from the phylogenetic sequencing data. While both allogenic FMT as well as autologous FMT did not have an effect on the faecal metabolites measured in this study, correlations between the microbial composition and the metabolites showed that the microbe-metabolite interactions seemed to be disrupted after allogenic FMT compared to autologous FMT. This shows that FMT can lead to altered interactions between the gut microbiota and its metabolites in IBS patients. Further research should investigate if and how this affects efficacy of FMT treatments.
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Affiliation(s)
- S Holster
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - D Repsilber
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - D Geng
- Man-Technology-Environmental Research Centre, Faculty of Business, Science and Engineering, School of Science and Technology, Örebro University, Örebro, Sweden
| | - T Hyötyläinen
- Man-Technology-Environmental Research Centre, Faculty of Business, Science and Engineering, School of Science and Technology, Örebro University, Örebro, Sweden
| | - A Salonen
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - C M Lindqvist
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - S K Rajan
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - W M de Vos
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Laboratory of Microbiology, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - R J Brummer
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - J König
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
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12
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Berdeja J, Madduri D, Usmani S, Singh I, Zudaire E, Yeh T, Allred A, Olyslager Y, Banerjee A, Goldberg J, Schecter J, Geng D, Wu X, Carrasco-Alfonso M, Rizvi S, Fan F, Jakubowiak A, Jagannath S. UPDATE OF CARTITUDE-1: A PHASE 1B/2 STUDY OF JNJ-68284528 (JNJ-4528), A B-CELL MATURATION ANTIGEN (BCMA)-DIRECTED CHIMERIC ANTIGEN RECEPTOR T (CAR-T) CELL THERAPY, IN RELAPSED/REFRACTORY MULTIPLE MYELOMA (MM). Hematol Transfus Cell Ther 2020. [DOI: 10.1016/j.htct.2020.10.466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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13
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McGlinchey A, Sinioja T, Lamichhane S, Sen P, Bodin J, Siljander H, Dickens AM, Geng D, Carlsson C, Duberg D, Ilonen J, Virtanen SM, Dirven H, Berntsen HF, Zimmer K, Nygaard UC, Orešič M, Knip M, Hyötyläinen T. Prenatal exposure to perfluoroalkyl substances modulates neonatal serum phospholipids, increasing risk of type 1 diabetes. Environ Int 2020; 143:105935. [PMID: 32634666 DOI: 10.1016/j.envint.2020.105935] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/12/2020] [Accepted: 06/25/2020] [Indexed: 05/21/2023]
Abstract
In the last decade, increasing incidence of type 1 diabetes (T1D) stabilized in Finland, a phenomenon that coincides with tighter regulation of perfluoroalkyl substances (PFAS). Here, we quantified PFAS to examine their effects, during pregnancy, on lipid and immune-related markers of T1D risk in children. In a mother-infant cohort (264 dyads), high PFAS exposure during pregnancy associated with decreased cord serum phospholipids and progression to T1D-associated islet autoantibodies in the offspring. This PFAS-lipid association appears exacerbated by increased human leukocyte antigen-conferred risk of T1D in infants. Exposure to a single PFAS compound or a mixture of organic pollutants in non-obese diabetic mice resulted in a lipid profile characterized by a similar decrease in phospholipids, a marked increase of lithocholic acid, and accelerated insulitis. Our findings suggest that PFAS exposure during pregnancy contributes to risk and pathogenesis of T1D in offspring.
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Affiliation(s)
- Aidan McGlinchey
- School of Medical Sciences, Örebro University, 702 81 Örebro, Sweden
| | - Tim Sinioja
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - Santosh Lamichhane
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Partho Sen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Johanna Bodin
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway
| | - Heli Siljander
- Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Alex M Dickens
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Dawei Geng
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - Cecilia Carlsson
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - Daniel Duberg
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - Jorma Ilonen
- Immunogenetics Laboratory, Institute of Biomedicine, University of Turku, 20014 Turku, Finland; Department of Clinical Microbiology, Turku University Hospital, 20014 Turku, Finland
| | - Suvi M Virtanen
- Public Health Promotion Unit, National Institute for Health and Welfare, 00271 Helsinki, Finland; Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland; Tampere University Hospital, Research, Development and Innovation Center, Tampere, Finland; Tampere Center for Child Health Research, Tampere University Hospital, Tampere, Finland
| | - Hubert Dirven
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway
| | - Hanne Friis Berntsen
- Norwegian University of Life Sciences, 0102 Oslo, Norway; National Institute of Occupational Health, 0363 Oslo, Norway
| | - Karin Zimmer
- Tampere University Hospital, Research, Development and Innovation Center, Tampere, Finland
| | - Unni C Nygaard
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway
| | - Matej Orešič
- School of Medical Sciences, Örebro University, 702 81 Örebro, Sweden; Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland.
| | - Mikael Knip
- Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland; Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland; Tampere University Hospital, Research, Development and Innovation Center, Tampere, Finland; Tampere Center for Child Health Research, Tampere University Hospital, Tampere, Finland.
| | - Tuulia Hyötyläinen
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden.
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14
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Wei P, Xu Y, Gu Y, Geng D, Yao Q, Wang L. Conservative vs Surgical Treatment of Impacted Femoral Neck Fracture in Patients 75 Years and Older. J Am Geriatr Soc 2020; 68:2214-2221. [PMID: 32413174 DOI: 10.1111/jgs.16535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/16/2020] [Accepted: 04/23/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the safety and effectiveness of conservative treatment (CST), internal fixation (IF), and hemiarthroplasty (HA) in treating patients older than 75 years with impacted femoral neck fracture (IFNF). DESIGN A randomized clinical trial to compare clinical outcomes of CST, IF, and HA in IFNF patients older than 75 years with a 1:1:1 ratio. SETTING Nanjing First Hospital, Nanjing Medical University, Nanjing, China. PARTICIPANTS A total of 154 patients with IFNF aged between 75 and 97 years. INTERVENTION Patients with IFNF were allocated to CST, IF, and HA. They all received a 36-month follow-up. MEASUREMENTS All patients were evaluated by Harris hip score (HHS) (primary outcome) for hip function, European Quality of Life-5 Dimensions (EQ-5D) index scores for health-related quality of life, and visual analogue scale score for hip pain. Operation duration, blood loss, mortality, union rate, complications, and reoperation were also recorded. Assessors were blind to the type of treatment. RESULTS The baseline parameters of the three groups were similar. IF group had much lower blood loss than HA group (P < .05), while no significant difference in operative duration was found between the two groups (P > .05). HHS in HA group was significantly higher at 1, 3, and 6 months (P < .05), but no significant difference in HHS was found between CST and IF groups at any of the time points during the overall follow-up (P > .05). EQ-5D index score was higher in HA group at each follow-up within 1 year (P < .05), but the difference was not significant at 2- and 3-year follow-up (P > .05). There was no significant difference in mortality among the three groups at each follow-up point (P > .05). The nonunion rate was 11.76% (6/51) in CST group and 9.80% (5/51) in IF group and showed no significant difference (P > .05). CONCLUSION CST may be a feasible way for IFNF in the older patients. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04219943. J Am Geriatr Soc 68:2214-2221, 2020.
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Affiliation(s)
- Peiran Wei
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yan Xu
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yue Gu
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Dawei Geng
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Liming Wang
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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15
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Fan YD, Zhu ML, Geng D, Zhou K, Du GJ, Wang ZL. The study on pathological mechanism and solution method for spinal cord ischemia reperfusion injury. Eur Rev Med Pharmacol Sci 2019; 22:4063-4068. [PMID: 30024591 DOI: 10.26355/eurrev_201807_15394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE We aimed at investigating the pathological mechanism changing of injury during reperfusion injury, reperfusion time correlation and compliance, finding the blood supply and improving the secondary damage. MATERIALS AND METHODS A total of 180 patients who underwent a surgical procedure and that received normal saline intraperitoneally immediately after the patients' aortic occlusions were investigated. Patients were divided in three groups. Experimental conditions and programs were designed for various approaches. RESULTS Thirty min after the onset of ischemia, we found a decrease in the local blood flow in the lumbar spinal cord, almost -77.48% of the baseline, which was reversed partially by initial reperfusion, even exceeding the baseline level. However, 1 hour after reperfusion, the blood flow was again decreased to the level below the baseline, followed by a decline to 207.13% ± 38.25 PU for 3 h without any recovery. Attenuating this secondary damage with neuroprotective strategies requires an understanding of these pathophysiologic processes. CONCLUSIONS This study showed the pathological mechanism changes during reperfusion injury and reperfusion time correlation and compliance, and analyzed some of the important pathophysiologic processes involved in secondary damage after spinal cord injury. Moreover, our research discusses a number of pharmacologic therapies that have either been studied or have future potential for this devastating injury.
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Affiliation(s)
- Y-D Fan
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, PR China.
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16
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Zhou W, Liu Y, Guo X, Yang H, Xu Y, Geng D. Effects of zoledronic acid on bone mineral density around prostheses and bone metabolism markers after primary total hip arthroplasty in females with postmenopausal osteoporosis. Osteoporos Int 2019; 30:1581-1589. [PMID: 31115592 DOI: 10.1007/s00198-019-05005-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/23/2019] [Indexed: 12/11/2022]
Abstract
INTRODUCTION To investigate the effect of zoledronic acid on periprosthetic bone mineral density (BMD) and bone metabolism markers after primary total hip arthroplasty in females with postmenopausal osteoporosis. METHODS From November 2015 to April 2016, 40 female patients who met the inclusion criteria were randomized into two groups: a control group (calcium + calcitriol) and a zoledronic acid group (calcium + calcitriol + zoledronic acid). At 1 week and 3, 6, and 12 months after operation, BMD was obtained through dual-energy X-ray absorptiometry (DEXA). At pre-operation and at 3, 6, and 12 months after the operation, levels of bone metabolism markers were obtained by serum examination. RESULTS Loss of BMD was significantly more pronounced in the control group than in the ZOL group in zones 1, 4, 6, and 7 at 6 months and in zones 1, 2, 4, 6, and 7 at 12 months after the operation. The levels of bone-resorption marker (β-CTX) were significantly lower in the ZOL group than in the control group at 3, 6, and 12 months after operation. The levels of bone-formation marker (TP1NP) performed statistically differences only at 12 months after the operation in these two groups. CONCLUSIONS Receiving an intravenous infusion of 5 mg zoledronic acid after THA can effectively reduce periprosthetic BMD loss and improve bone remodeling in females with postmenopausal osteoporosis. Zoledronic acid significantly inhibited bone mass loss in zones 1, 2, 4, 6, and 7 after THA and inhibited bone-resorption marker (β-CTX) to improve bone remodeling. Zoledronic acid treatment is potentially important for patients with osteoporosis after THA.
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Affiliation(s)
- W Zhou
- Department of Orthopedics, The First Affiliated Hospital of University of Science and Technology of China, 17, Lu Jiang Road, Hefei, 230001, People's Republic of China
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China
| | - Y Liu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China
| | - X Guo
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China
| | - H Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China.
| | - Y Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China.
| | - D Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188, Shi Zi Road, Suzhou, 215006, People's Republic of China.
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17
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Lin L, Xue Y, Duan Q, Chen X, Chen H, Jiang R, Zhong T, Xu G, Geng D, Zhang J. Grading meningiomas using mono-exponential, bi-exponential and stretched exponential model-based diffusion-weighted MR imaging. Clin Radiol 2019; 74:651.e15-651.e23. [DOI: 10.1016/j.crad.2019.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 04/03/2019] [Indexed: 02/07/2023]
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18
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Cai D, Feng W, Liu J, Jiang L, Chen S, Yuan T, Yu C, Xie H, Geng D, Qin J. 7,8-Dihydroxyflavone activates Nrf2/HO-1 signaling pathways and protects against osteoarthritis. Exp Ther Med 2019; 18:1677-1684. [PMID: 31410125 PMCID: PMC6676087 DOI: 10.3892/etm.2019.7745] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 06/06/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the effect of 7,8-dihydroxyflavone (7,8-DHF) against osteoarthritis (OA) and examine its regulatory role in the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) signaling pathway in chondrocytes. Primary mouse chondrocytes were treated with 7,8-DHF to examine the expression of Nrf2 and downstream heme oxygenase 1 (HO-1). The surgical destabilization of the medial meniscus model was used to assess the effectiveness of 7,8-DHF in protecting the cartilage from damage, with knee cartilage harvested from mice for histological analysis. The results revealed that 7,8-DHF activated the Nrf2 signaling pathway in primary chondrocytes. Cartilage degradation in the 7,8-DHF-treated group was reduced significantly compared with that in the vehicle-treated group, according to histological evaluation. The gene expression of matrix metalloproteinase (MMP)1, MMP3, MMP13, interleukin (IL)-1β, IL-6 and tumor necrosis factor-α were reduced in the cartilage of OA mice following 7,8-DHF treatment. Genetic and protein analyses indicated that the expression levels of HO-1 were upregulated in the cartilage of the knee with OA, and 7,8-DHF treatment further promoted the induction of HO-1. These results suggest that 7,8-DHF may serve as a potential therapeutic agent in OA.
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Affiliation(s)
- Dawei Cai
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Wan Feng
- Department of Gastroenterology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Jun Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, P.R. China
| | - Longhai Jiang
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Sichun Chen
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Tangbo Yuan
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Chen Yu
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Hao Xie
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Dawei Geng
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Jian Qin
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
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Geng D, Musse AA, Wigh V, Carlsson C, Engwall M, Orešič M, Scherbak N, Hyötyläinen T. Effect of perfluorooctanesulfonic acid (PFOS) on the liver lipid metabolism of the developing chicken embryo. Ecotoxicol Environ Saf 2019; 170:691-698. [PMID: 30580163 DOI: 10.1016/j.ecoenv.2018.12.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 05/22/2023]
Abstract
Perfluorooctanesulfonate (PFOS) is a well-known contaminant in the environment and it has shown to disrupt multiple biological pathways, particularly those related with lipid metabolism. In this study, we have studied the impact of in ovo exposure to PFOS on lipid metabolism in livers in developing chicken embryos using lipidomics for detailed characterization of the liver lipidome. We used an avian model (Gallus gallus domesticus) for in ovo treatment at two levels of PFOS. The lipid profile of the liver of the embryo was investigated by ultra-high performance liquid chromatography combined with quadrupole-time-of-flight mass spectrometry and by gas chromatography mass spectrometry. Over 170 lipids were identified, covering phospholipids, ceramides, di- and triacylglycerols, cholesterol esters and fatty acid composition of the lipids. The PFOS exposure caused dose dependent changes in the lipid levels, which included upregulation of specific phospholipids associated with the phosphatidylethanolamine N-methyltransferase (PEMT) pathway, triacylglycerols with low carbon number and double bond count as well as of lipotoxic ceramides and diacylglycerols. Our data suggest that at lower levels of exposure, mitochondrial fatty acid β-oxidation is suppressed while the peroxisomal fatty acid β -oxidation is increased. At higher doses, however, both β -oxidation pathways are upregulated.
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Affiliation(s)
- Dawei Geng
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Ayan Au Musse
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Viktoria Wigh
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Cecilia Carlsson
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Magnus Engwall
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Matej Orešič
- School of Medical Sciences, Örebro University, SE-701 82 Örebro, Sweden; Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FI-20520 Turku, Finland
| | - Nikolai Scherbak
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Tuulia Hyötyläinen
- MTM Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden.
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20
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Zeng N, Wang A, Zhong C, Zheng X, Zhu Z, Xu T, Peng Y, Peng H, Li Q, Ju Z, Geng D, Zhang Y, He J. Association of serum galectin-3 with risks of death and vascular events in acute ischaemic stroke patients: the role of hyperglycemia. Eur J Neurol 2018; 26:415-421. [PMID: 30414289 DOI: 10.1111/ene.13856] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 11/05/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND PURPOSE Whether the association between galectin-3 and stroke outcome is modified by fasting plasma glucose (FPG) is unknown. The aim was to evaluate the prognostic effect of galectin-3 amongst ischaemic stroke patients stratified by FPG. METHODS In all, 3082 ischaemic stroke patients were included in this study and serum galectin-3 was tested at baseline. The primary outcome was a composite outcome of death and vascular events, and secondary outcomes were death, stroke recurrence and vascular events within 1 year after stroke. RESULTS Increased galectin-3 was significantly associated with the primary outcome, stroke recurrence and vascular events in the patients with hyperglycemia but not in those with normoglycemia (P for interaction < 0.05 for all). The multivariate-adjusted hazard ratios (95% confidence intervals) were 1.72 (1.05-2.84), 2.64 (1.14-6.12) and 2.68 (1.33-5.38) for the primary outcome, stroke recurrence and vascular events, respectively. A linear association between galectin-3 and the primary outcome was observed in hyperglycemic patients (P for linearity = 0.007). CONCLUSION Increased galectin-3 was associated with the primary outcome, stroke recurrence and vascular events within 1 year after stroke in the patients with hyperglycemia, suggesting that galectin-3 may be an important prognostic factor for ischaemic stroke patients with hyperglycemia.
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Affiliation(s)
- N Zeng
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - A Wang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - C Zhong
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - X Zheng
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Z Zhu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - T Xu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Y Peng
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Hebei, China
| | - H Peng
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Q Li
- Department of Epidemiology, School of Public Health, Taishan Medical College, Shandong, China
| | - Z Ju
- Department of Neurology, Kerqin District First People's Hospital of Tongliao City, Tongliao, Inner Mongolia, China
| | - D Geng
- Department of Neurology, Affiliated Hospital of Xuzhou Medical College, Jiangsu, China
| | - Y Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - J He
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
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21
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Lu Y, Xiong J, Yin B, Wen J, Liu L, Geng D. The role of three-dimensional pseudo-continuous arterial spin labelling in grading and differentiating histological subgroups of meningiomas. Clin Radiol 2018; 73:176-184. [DOI: 10.1016/j.crad.2017.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/02/2017] [Accepted: 08/14/2017] [Indexed: 10/18/2022]
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22
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Xie H, Wang B, Shen X, Qin J, Jiang L, Yu C, Geng D, Yuan T, Wu T, Cao X, Liu J. MMC controlled-release membranes attenuate epidural scar formation in rat models after laminectomy. Mol Med Rep 2017; 15:4162-4168. [PMID: 28487972 PMCID: PMC5436155 DOI: 10.3892/mmr.2017.6531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/27/2017] [Indexed: 11/28/2022] Open
Abstract
Epidural scar formation after laminectomy impede surgical outcomes of decompression. Mitomycin C (MMC) has been demonstrated to have significant inhibitory effects on epidural scar. This study was undertaken to develop an effective MMC controlled-release membrane and to investigate its effects on epidural scar in rat models of laminectomy. A total of 72 rats that underwent laminectomy were divided into three groups. Among them, 24 were treated with mitomycin C-polylactic acid (MMC-PLA) controlled-release membrane, 24 with mitomycin C-polyethylene glycol (MMC-PEG) controlled-release membrane, and no treatment was performed for the remaining 24 rats (control group). In the following 4 weeks, magnetic resonance image (MRI), macroscopic observation, histology and hydroxyproline (Hyp) concentration analysis were performed to explore the effects of these three therapies on epidural scar. MRI revealed a significant reduction of epidural fibrosis in MMC-PLA and MMC-PEG treatment groups, compared with the control group. Histological results also showed that collagen deposition was significantly reduced after being treated with MMC-PLA or MMC-PEG membranes. Likewise, Hyp concentrations of the epidural scar tissue in MMC-PLA and MMC-PEG groups were markedly lower than those in the control group. However, regarding the effects on reducing epidural scar, no significant difference was found between the MMC-PLA and MMC-PEG groups. In conclusion, MMC-PLA and MMC-PEG membranes are safe and effective in reducing fibrosis. Thus, MMC-controlled-release membranes promises to be a potential therapeutic in preventing epidural scar formation after laminectomy.
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Affiliation(s)
- Hao Xie
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Binbin Wang
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Xun Shen
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Jian Qin
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Longhai Jiang
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Chen Yu
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Dawei Geng
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Tangbo Yuan
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Tao Wu
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Xiaojian Cao
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Jun Liu
- Department of Orthopaedics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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23
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Xu T, Zhong C, Peng Y, Chen CS, Wang J, Ju Z, Li Q, Geng D, Sun Y, Zhang D, Zhang Y, Chen J, Xu T, Zhang Y, He J. Serum 25-hydroxyvitamin D deficiency predicts poor outcome amongst acute ischaemic stroke patients with low high density lipoprotein cholesterol. Eur J Neurol 2016; 23:1763-1768. [PMID: 27647662 DOI: 10.1111/ene.13121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 08/08/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Current observational studies indicate that a lower vitamin D level is associated with a higher risk of poor ischaemic stroke prognosis. Whether this association is affected by lipid levels is unclear. Our aim was to examine the effect of serum vitamin D especially its deficiency on the global outcome of ischaemic stroke stratified by individual lipid component level. METHODS A total of 3181 ischaemic patients from China Antihypertensive Trial in Acute Ischaemic Stroke were included in this study and their baseline serum 25-hydroxyvitamin D levels were tested. They were prospectively followed up for death, major disability and vascular events for 3 months after acute ischaemic stroke. A multivariable logistic model was used to evaluate the association between serum 25-hydroxyvitamin D levels and clinical outcomes of ischaemic stroke in the 3-month period of follow-up in all patients and in different lipid-level subgroups. RESULTS Vitamin D deficiency was associated with poor clinical outcomes only in ischaemic stroke patients with high density lipoprotein cholesterol (HDLC) <1.04 mmol/l rather than all patients. The multivariable adjusted odds ratios (95% confidence intervals) of major disability and composite adverse events were 1.98 (1.08-3.63) and 2.24 (1.22-4.12), respectively. There was a significant interaction effect between vitamin D and HDLC levels on major disability and the composite outcome (P for interaction < 0.05 for both). A significant linear trend existed between 25-hydroxyvitamin D and risk of poor prognosis (P = 0.03). CONCLUSIONS Vitamin D deficiency may be merely an independent risk factor of poor prognosis in ischaemic stroke patients with low HDLC level.
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Affiliation(s)
- T Xu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, China.,Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.,Department of Neurology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - C Zhong
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Y Peng
- Department of Neurology, Affiliated Hospital of Hebei United University, Hebei, China
| | - C-S Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - J Wang
- Department of Neurology, Yutian County Hospital, Hebei, China
| | - Z Ju
- Department of Neurology, Kerqin District First People's Hospital of Tongliao City, Inner Mongolia, China
| | - Q Li
- Department of Epidemiology, School of Public Health, Taishan Medical College, Shandong, China
| | - D Geng
- Department of Neurology, Affiliated Hospital of Xuzhou Medical College, Jiangsu, China
| | - Y Sun
- Department of Cardiology, First Affiliated Hospital of China Medical University, Liaoning, China
| | - D Zhang
- Department of Neurology and Cardiology, Dongping County People's Hospital, Dongping, Shandong, China
| | - Y Zhang
- Department of Neurology, Wenshang County Hospital of Traditional Chinese Medicine, Shandong, China
| | - J Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.,Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
| | - T Xu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, China.,Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Y Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, China.,Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - J He
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu, China.,Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.,Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
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24
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Geng D, Jogsten IE, Dunstan J, Hagberg J, Wang T, Ruzzin J, Rabasa-Lhoret R, van Bavel B. Gas chromatography/atmospheric pressure chemical ionization/mass spectrometry for the analysis of organochlorine pesticides and polychlorinated biphenyls in human serum. J Chromatogr A 2016; 1453:88-98. [DOI: 10.1016/j.chroma.2016.05.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/15/2016] [Accepted: 05/06/2016] [Indexed: 12/18/2022]
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25
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Wang ZL, Xu DS, Wang YX, Qin H, Geng D. Effect of single nucleotide polymorphisms in the ATP-binding cassette B1 gene on the clinical outcome of traumatic brain injury. Genet Mol Res 2015; 14:10948-53. [PMID: 26400323 DOI: 10.4238/2015.september.21.6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The critical role of ATP-binding cassette B1 (ABCB1) in the function of the blood-brain barrier led us to conducted this prospective study in order to investigate the clinical outcome of patients suffering from severe traumatic brain injury. A total of 182 patients with traumatic brain injury were included in our study. Genotyping of ABCB1 C3435T and G2677T/A was conducted using polymerase chain reaction-restriction fragment length polymorphism. Using multivariate-logistic regression analysis, we found that patients carrying the CT+CC genotype of ABCB1 C3435T were more likely to have a better neurological outcome when compared with the TT genotype (odds ratio = 2.71, 95% confidence interval = 1.12-6.86). However, no significant association was found between the G2677T/A polymorphism and outcome of traumatic brain injury patients. Our study provides important information regarding the prognostic value of ABCB1 C3435T, and the ABCB1 C3435T polymorphism may be used as a predictive marker for the outcome of traumatic brain injury patients.
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Affiliation(s)
- Z L Wang
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - D S Xu
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Y X Wang
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - H Qin
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - D Geng
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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26
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van Bavel B, Geng D, Cherta L, Nácher-Mestre J, Portolés T, Ábalos M, Sauló J, Abad E, Dunstan J, Jones R, Kotz A, Winterhalter H, Malisch R, Traag W, Hagberg J, Ericson Jogsten I, Beltran J, Hernández F. Atmospheric-Pressure Chemical Ionization Tandem Mass Spectrometry (APGC/MS/MS) an Alternative to High-Resolution Mass Spectrometry (HRGC/HRMS) for the Determination of Dioxins. Anal Chem 2015; 87:9047-53. [DOI: 10.1021/acs.analchem.5b02264] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bert van Bavel
- MTM
Research Centre, School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
| | - Dawei Geng
- MTM
Research Centre, School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
| | - Laura Cherta
- Research
Institute for Pesticides and Water (IUPA), Avda. Sos Baynat s/n, University Jaume I, 12071 Castellón, Spain
| | - Jaime Nácher-Mestre
- Research
Institute for Pesticides and Water (IUPA), Avda. Sos Baynat s/n, University Jaume I, 12071 Castellón, Spain
| | - Tania Portolés
- Research
Institute for Pesticides and Water (IUPA), Avda. Sos Baynat s/n, University Jaume I, 12071 Castellón, Spain
| | - Manuela Ábalos
- MTM
Research Centre, School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
- Laboratory
of Dioxins, Mass Spectrometry Laboratory, Department of Environmental
Chemistry, IDAEA-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
| | - Jordi Sauló
- Laboratory
of Dioxins, Mass Spectrometry Laboratory, Department of Environmental
Chemistry, IDAEA-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
| | - Esteban Abad
- Laboratory
of Dioxins, Mass Spectrometry Laboratory, Department of Environmental
Chemistry, IDAEA-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
| | | | - Rhys Jones
- Waters Corporation, Manchester, United Kingdom
| | - Alexander Kotz
- EU
Reference Laboratory (EURL) for Dioxins and PCBs in Feed and Food, State Institute for Chemical and Veterinary Analysis of Food, D-79114 Freiburg, Germany
| | - Helmut Winterhalter
- EU
Reference Laboratory (EURL) for Dioxins and PCBs in Feed and Food, State Institute for Chemical and Veterinary Analysis of Food, D-79114 Freiburg, Germany
| | - Rainer Malisch
- EU
Reference Laboratory (EURL) for Dioxins and PCBs in Feed and Food, State Institute for Chemical and Veterinary Analysis of Food, D-79114 Freiburg, Germany
| | - Wim Traag
- RIKILT, Institute of
Food Safety, PO Box 230, NL-6700 AE Wageningen, The Netherlands
| | - Jessika Hagberg
- MTM
Research Centre, School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
| | - Ingrid Ericson Jogsten
- MTM
Research Centre, School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
| | - Joaquim Beltran
- Research
Institute for Pesticides and Water (IUPA), Avda. Sos Baynat s/n, University Jaume I, 12071 Castellón, Spain
| | - Félix Hernández
- Research
Institute for Pesticides and Water (IUPA), Avda. Sos Baynat s/n, University Jaume I, 12071 Castellón, Spain
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27
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Gauthier MS, Rabasa-Lhoret R, Prud'homme D, Karelis AD, Geng D, van Bavel B, Ruzzin J. The metabolically healthy but obese phenotype is associated with lower plasma levels of persistent organic pollutants as compared to the metabolically abnormal obese phenotype. J Clin Endocrinol Metab 2014; 99:E1061-6. [PMID: 24606089 DOI: 10.1210/jc.2013-3935] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
CONTEXT Although obesity is strongly linked to insulin resistance and type 2 diabetes, a subset of obese individuals termed metabolically healthy but obese (MHO) appears relatively protected from the development of cardiometabolic complications. The origins of this metabolically healthy phenotype remain unclear. Recently, persistent organic pollutants (POPs) have emerged as potential endocrine disruptors. OBJECTIVE The aim of this study was to test the hypothesis that the MHO phenotype presents lower circulating levels of POPs as compared to the metabolically abnormal obese (MAO) phenotype. DESIGN, SETTING, AND PATIENTS We conducted a cross-sectional study of 76 nondiabetic obese (body mass index ≥30 kg/m(2)) postmenopausal women. MAIN OUTCOME MEASURES Plasma concentrations of 21 POPs as well as cardiometabolic risk factors were analyzed. RESULTS For similar age, body mass index, and fat mass index, MHO women (n = 40) showed higher insulin sensitivity levels and a more favorable cardiometabolic profile than MAO women (n = 36), as evidenced by a 2-fold increase in glucose disposal rates measured by the hyperinsulinemic-euglycemic clamp (P = .001). Among 18 detectable pollutants measured, MAO women had higher plasma concentrations of 12 POPs (fold increase, 1.4-2.9; P < .001-.036). Logistic regression analyses showed that the prevalence of the MAO phenotype was significantly associated with higher levels of total dioxin- and non-dioxin-like polychlorinated biphenyls (odds ratio, 4.7; 95% confidence interval, 1.8-12.5; P = .002), as well as trans-nonachlor (odds ratio, 6.1; 95% CI, 2.2-16.4; P < .001). CONCLUSION Our study demonstrates that the metabolically healthy and abnormal phenotypes have distinct plasma POP profiles.
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Affiliation(s)
- Marie-Soleil Gauthier
- Institut de Recherches Cliniques de Montréal (M.-S.G., R.R.-L.), Montréal, Québec, H2W 1R7, Canada; Montreal Diabetes Research Centre at the Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM) (M.-S.G., R.R.-L.) Montréal, Québec, H1W 4A4, Canada; The Nutrition Department (R.R.-L.), Université de Montréal; the Endocrinology Division (R.R.-L.), Montreal University Hospital, Montréal, Québec, Canada H2W 1T8; School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada; Institut de Recherche de l'Hôpital Montfort (D.P.), Ottawa, Ontario, K1K 0T2, Canada; Department of Kinanthropology (A.K.), Université du Québec à Montréal, Montréal, Québec, Canada H3C 3P8; MTM Research Center (D.G., B.v.B.), School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden; and Department of Biology (J.R.), University of Bergen, N-5006 Bergen, Norway
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28
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Liu X, Zhang W, Geng D, He J, Zhao Y, Yu L. Clinical significance of fibroblast growth factor receptor-3 mutations in bladder cancer: a systematic review and meta-analysis. Genet Mol Res 2014; 13:1109-20. [PMID: 24634132 DOI: 10.4238/2014.february.20.12] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Mutations in the fibroblast growth factor receptor-3 (FGFR3) gene are frequently found in bladder cancer, but their prognostic value remains controversial. To globally summarize the association between FGFR3 mutations and the grade and stage of bladder cancer, and to analyze the predictive role of FGFR3 mutations with respect to survival, eligible studies were identified and assessed for quality through multiple search strategies. Risk ratio (RR) data were collected from studies comparing the number of FGFR3 mutants among low-grade and early-stage bladder cancer patients to the number among high-grade and late-stage patients. Hazard ratio (HR) data were collected from studies comparing survival in patients with mutant FGFR3 genes to those with wild-type genes. Studies were pooled, and the RRs of grade and stage and the HRs of survival were calculated. Thirty studies were included in the present meta-analysis. FGFR3 mutations were found to be closely associated with low-grade and early-stage bladder cancer, showing pooled RRs = 2.948 [95% confidence interval (CI) = 2.357-3.688] and 2.845 (95%CI = 2.145- 3.773), respectively. Notably, patients with FGFR3 mutations tended to show better disease-, progress-, and recurrence-free survival (HR = 0.561, 95%CI = 0.405-0.779), and better disease-specific survival (HR = 0.363, 95%CI = 0.266-0.496). This study demonstrated that FGFR3 mutations are closely related to low grade, early stage, and better survival among bladder cancer patients.
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Affiliation(s)
- X Liu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai, China
| | - W Zhang
- Institutes for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China
| | - D Geng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - J He
- Institutes for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China
| | - Y Zhao
- Institutes for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China
| | - L Yu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai, China
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29
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Li H, Zhang Q, Wang P, Li Y, Lv J, Chen W, Geng D, Wang Y, Wang T, Jiang G. Levels and distribution of hexabromocyclododecane (HBCD) in environmental samples near manufacturing facilities in Laizhou Bay area, East China. ACTA ACUST UNITED AC 2012; 14:2591-7. [DOI: 10.1039/c2em30231d] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Zhou F, Lu J, Zhu X, Mao H, Yang H, Geng D, Xu Y. Effects of a Cannabinoid Receptor 2 Selective Antagonist on the Inflammatory Reaction to Titanium Particles In Vivo and In Vitro. J Int Med Res 2010; 38:2023-32. [PMID: 21227006 DOI: 10.1177/147323001003800616] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Wear particle-induced inflammation is a major factor contributing to aseptic loosening in peri-prosthetic tissue. The effects of cannabinoid receptor 2 (CB2) on wear particle-induced inflammation remain unclear. Reverse transcription–polymerase chain reaction and enzyme-linked immunosorbent assay were used to assess the effects of a CB2-selective antagonist, AM630, on regulation of the inflammatory reaction and production of pro-inflammatory cytokines in response to in vitro and in vivo stimulation with titanium particles. In vitro studies, in a model for pre-osteoclast-like cells, demonstrated that AM630 inactivation of CB2 profoundly inhibited interleukin (IL)-1β and tumour necrosis factor (TNF)-α production by RAW264.7 cells stimulated with titanium particles. In vivo findings in a murine air-pouch model of titanium-induced inflammatory osteolysis indicated that AM630 reduced titanium-induced tissue inflammation, seen as a reduction in pouch membrane thickness, inflammatory infiltration and levels of the pro-inflammatory cytokines IL-1β and TNF-α. Thus, inactivation of CB2 by AM630 inhibited the titanium particle-induced inflammatory reaction by reducing pro-inflammatory cytokines in vitro and in vivo.
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Affiliation(s)
- F Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - J Lu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - X Zhu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - H Mao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - H Yang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - D Geng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Y Xu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Jiangsu, China
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Abstract
This study describes a case of a patient with OSMS who presented with somnolence, periodic fever, memory impairment, and amenorrhea. Serum prolactin levels were found to be higher than normal. MR imaging showed a bilateral involvement of the hypothalamus. The clinical presentation, laboratory examination, and MR imaging findings suggested a diagnosis of hypothalamus syndrome in this patient.
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Affiliation(s)
- Y Zhang
- Department of Neurology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China
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Wu J, Yang H, Qiu Z, Zhang Q, Ding T, Geng D. Effect of combined treatment with methylprednisolone and Nogo-A monoclonal antibody after rat spinal cord injury. J Int Med Res 2010; 38:570-82. [PMID: 20515570 DOI: 10.1177/147323001003800219] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The purpose of this study was to investigate the effects of combination therapy with methylprednisolone (MP) and Nogo-66 antagonistic peptide (NEP1-40) on morphological and functional recovery in adult rats subjected to thoracic compression spinal cord injury (SCI). Animals were randomized into four groups: a trauma control group, an MP group, an NEP1-40 group, and a combined treatment group. The inflammatory reaction, neuronal and oligodendrocyte survival, and ultrastructure were assessed at the injury site. Functional analysis was also performed using Basso, Beattie and Bresnahan (BBB) scoring. Rat behaviour was evaluated regularly up to week 4. NEP1-40 did not alter the beneficial effect of MP on haematogenous inflammatory cell infiltration, while combined treatment resulted in greater neuronal and oligodendrocyte survival compared with monotherapy or control. Combination therapy resulted in better locomotor scores. These results in a clinically-relevant SCI model showed that significant neuroprotection can be obtained by combining an initial acute IV injection of MP with continuously infused NEP1-40.
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Affiliation(s)
- J Wu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Tornetta M, Fisher D, O'Neil K, Geng D, Schantz A, Brigham-Burke M, Lombardo D, Fink D, Knight D, Sweet R, Tsui P. Isolation of human anti-idiotypic antibodies by phage display for clinical immune response assays. J Immunol Methods 2007; 328:34-44. [PMID: 17888945 DOI: 10.1016/j.jim.2007.08.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2005] [Revised: 05/23/2007] [Accepted: 08/02/2007] [Indexed: 11/29/2022]
Abstract
The clinical development of therapeutic proteins requires assays that measure the pharmacokinetic (PK) profile of, and the potential immune response (IR) to, the protein agent. Each assay requires reagents that are highly specific for the therapeutic protein. For therapeutic monoclonal antibodies, anti-CDR-specific, or anti-idiotypic (anti-id), antibodies are an ideal class of reagents suitable for these assays because of their high specificity and affinity to the drug antibody. We generated anti-ids to two human antibodies by antibody phage display using the MorphoSys HuCAL GOLD Fab library. To selectively target the CDR regions, serum and a framework-matched mAb were included as competitors during the phage selection process. Panels of CDR-specific Fabs, with low to sub-nM affinities, were isolated against both targets. The CDR specificity of these Fabs was shown by their lack of binding to a framework-matched control mAb and by competition of this binding with the soluble antigens of the respective therapeutic mAb targets. The candidate anti-id Fabs were able to detect both immobilized and soluble target Ab without being affected by serum, a requirement for both PK assay and the IR bridging assay format. Combinations of the Fabs for PK detection assays were identified by pairwise binding studies, although the pair for one target mAb lacks the desired sensitivity for PK assays. To evaluate their potential as anti-drug antibodies (ADAs), the best Fabs for one of the targets were converted and produced as the required bivalent human mAbs. In comparison to rodent mAbs and primate polyclonal serum, the phage display derived human mAbs were equally effective as reference standards. Our results demonstrate that competition-based phage selection can be an effective method for the isolation of anti-idiotypic antibodies for PK and IR assay development, and in this latter case, overcome limitations of current methods using rodent derived anti-ids.
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Affiliation(s)
- M Tornetta
- Department of Molecular Discovery Technologies, Centocor Inc, Radnor, PA, USA.
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Ren FL, Guo X, Zhang RJ, Wang SJ, Zuo H, Zhang ZT, Geng D, Yu Y, Su M. Effects of selenium and iodine deficiency on bone, cartilage growth plate and chondrocyte differentiation in two generations of rats. Osteoarthritis Cartilage 2007; 15:1171-7. [PMID: 17490897 DOI: 10.1016/j.joca.2007.03.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2006] [Accepted: 03/16/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The purpose of the current study was to investigate the roles of combined selenium and iodine deficiency in bone development as a possible experimental model of Kashin-Beck osteoarthropathy. METHODS Sprague-Dawley rats (n=48) were randomly divided into selenium deficiency (-Se+I), iodine deficiency (+Se-I), combined selenium and iodine deficiency (-Se-I), and selenium and iodine sufficient (+Se+I) groups. Growth of bone and cartilage, and the expression of type X collagen (ColX) and parathyroid hormone-related peptide (PTHrP) were measured in two generations of rats (F(0) and F(1)). RESULTS The tibial length in -Se-I rats was significantly shorter in F(1) generation. In +Se-I of F(1) rats, the thickness of the growth plate cartilage, and the proliferative zone was smaller, while in -Se-I rats the growth plate, and the proliferative and hypertrophic zones were also thinner in F(1) generation. In articular cartilage, ColX expression was increased in the deep zone in -Se-I rats of F(0) generation, and in -Se+I, +Se-I and -Se-I rats of F(1) generation. PTHrP expression was increased in the middle zone of -Se+I, +Se-I and -Se-I rats of both F(0) and F(1) generations. In the growth plate cartilage, ColX and PTHrP were expressed in the hypertrophic zone. ColX expression was significantly weaker in -Se+I and -Se-I rats in both F(0) and F(1) generations, while PTHrP expression was stronger in -Se+I, +Se-I and -Se-I rats in both F(0) and F(1) animals. CONCLUSIONS Combined selenium and iodine deficiency impaired the growth of bone and cartilage. The changes in the expression of ColX and PTHrP induced by combined selenium and iodine deficiency were compatible to measurements of ColX and PTHrP in Kashin-Beck osteoarthropathy.
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Affiliation(s)
- F L Ren
- Department of Public Health, Xi'an Jiaotong University School of Medicine, Xi'an, Shannxi 710061, PR China
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Yu Q, Ma L, Jing S, Xu Y, Geng D. [Clinic significance of nm23, collage IV and PCNA expression in non-small cell lung cancer]. Zhongguo Fei Ai Za Zhi 2001; 4:469-70. [PMID: 21106162 DOI: 10.3779/j.issn.1009-3419.2001.06.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND To study the significance of nm23, collagen IV and PCNA expressions in non-small cell lung cancer. METHODS Expressions of the nm23, collagen IV and PCNA in 84 cases of non-small cell lung cancer were examined with SP immunohistochemical technique. Of the 84 cases, there were squamous cell carcinoma 42, adenocarcinoma 42, stage I 27, stage II 24, stage III 24, and stage IV 9. Statistical analysis was performed with Chi-Square test. RESULTS Expressions of the nm23, collagen IV and PCNA in 84 cases of non-small cell lung cancer were 60. 7% ( 51/ 84) , 75. 0% ( 63/ 84) and 53. 6% ( 45/ 84) respectively. There was negative correlation between the lymph node metastasis and the expressions of nm23 and collagen IV in squamous cell carcinoma, and the expressions of collagen IV and PCNA were associated with tumor differentiation. No correlation was found between TNM stage and expressions of nm23, collagen IV and PCNA. CONCLUSIONS The results indicate that nm23, collagen IV and PCNA participate the modulation of metastasis of non-small cell lung cancer and that they may be used to evaluate the potential of metastasis.
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Affiliation(s)
- Q Yu
- Liaoning Provincial Hospital, Shengyang , Liaoning 110015, P. R . China
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Lee RS, Yamada K, Womer KL, Pillsbury EP, Allison KS, Marolewski AE, Geng D, Thall AD, Arn JS, Sachs DH, Sayegh MH, Madsen JC. Blockade of CD28-B7, but not CD40-CD154, prevents costimulation of allogeneic porcine and xenogeneic human anti-porcine T cell responses. J Immunol 2000; 164:3434-44. [PMID: 10706740 DOI: 10.4049/jimmunol.164.6.3434] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Despite increasing use of swine in transplantation research, the ability to block costimulation of allogeneic T cell responses has not been demonstrated in swine, and the effects of costimulatory blockade on xenogeneic human anti-porcine T cell responses are also not clear. We have compared the in vitro effects of anti-human CD154 mAb and human CTLA4IgG4 on allogeneic pig T cell responses and xenogeneic human anti-pig T cell responses. Both anti-CD154 mAb and CTLA4IgG4 cross-reacted on pig cells. While anti-CD154 mAb and CTLA4IgG4 both inhibited the primary allogeneic pig MLRs, CTLA4IgG4 (7.88 microg/ml) was considerably more inhibitory than anti-CD154 mAb (100 microg/ml) at optimal doses. Anti-CD154 mAb inhibited the production of IFN-gamma by 75%, but did not inhibit IL-10 production, while CTLA4IgG4 completely inhibited the production of both IFN-gamma and IL-10. In secondary allogeneic pig MLRs, CTLA4IgG4, but not anti-CD154 mAb, induced Ag-specific T cell anergy. CTLAIgG4 completely blocked the indirect pathway of allorecognition, while anti-CD154 mAb blocked the indirect response by approximately 50%. The generation of porcine CTLs was inhibited by CTLA4IgG4, but not by anti-CD154 mAb. Human anti-porcine xenogeneic MLRs were blocked by CTLA4IgG4, but only minimally by anti-CD154 mAb. Finally, CTLA4IgG4 prevented secondary xenogeneic human anti-porcine T cell responses. These data indicate that blockade of the B7-CD28 pathway was more effective than blockade of the CD40-CD154 pathway in inhibiting allogeneic pig T cell responses and xenogeneic human anti-pig T cell responses in vitro. These findings have implications for inhibiting cell-mediated immune responses in pig-to-human xenotransplantation.
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MESH Headings
- Abatacept
- Amino Acid Sequence
- Animals
- Antibodies, Blocking/analysis
- Antibodies, Blocking/pharmacology
- Antigens, CD
- Antigens, Differentiation/immunology
- Antigens, Heterophile/immunology
- B7-1 Antigen/immunology
- CD28 Antigens/immunology
- CD40 Antigens/immunology
- CD40 Ligand
- CTLA-4 Antigen
- Cells, Cultured
- Clonal Anergy/immunology
- Cytotoxicity, Immunologic/immunology
- Humans
- Immunoconjugates
- Immunoglobulin G/analysis
- Immunoglobulin G/pharmacology
- Immunosuppressive Agents/pharmacology
- Interferon-gamma/antagonists & inhibitors
- Interferon-gamma/biosynthesis
- Interleukin-10/antagonists & inhibitors
- Interleukin-10/biosynthesis
- Isoantigens/immunology
- Lymphocyte Activation/immunology
- Lymphocyte Culture Test, Mixed
- Membrane Glycoproteins/antagonists & inhibitors
- Membrane Glycoproteins/immunology
- Molecular Sequence Data
- Swine
- Swine, Miniature
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- R S Lee
- Department of Surgery, Massachusetts General Hospital, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02129, USA
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Zhou L, Song Y, Geng D. [The reconstruction of laryngeal function in subtotal laryngectomy with preservation of arytenoid cartilage]. Zhonghua Er Bi Yan Hou Ke Za Zhi 1999; 34:309-10. [PMID: 12764833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE To evaluate subtotal laryngectomy with preservation of arytenoid cartilage to reconstruct laryngeal function in T3 glottic or supraglottic laryngeal cancer. METHODS Subtotal laryngectomy with preservation of arytenoid cartilage to reconstruct laryngeal function was reviewed in 20 patients with T3 laryngeal cancer(3 cases with glottic cancer and 17 cases with supraglottic cancer). Recurrent laryngeal nerve was preserved during surgery. The mucous membranes between cricoid cartilage and pharynx were sewed up accordingly. RESULTS All patients had restored phonation and swallowing functions. The 3- and 5-year survival rates were 94.1% and 91.8% respectively. Decannulation rate was 95.0%. CONCLUSION Subtotal laryngectomy with preservation of arytenoid cartilage is recommended for T3 laryngeal cancer.
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Affiliation(s)
- L Zhou
- Department of Otorhinolaryngology, General Hospital of Shengyang Military Region, Shengyang 110015
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Geng D, Baker DP, Foley SF, Zhou C, Stieglitz K, Roberts MF. A 20-kDa domain is required for phosphatidic acid-induced allosteric activation of phospholipase D from Streptomyces chromofuscus. Biochim Biophys Acta 1999; 1430:234-44. [PMID: 10082951 DOI: 10.1016/s0167-4838(99)00005-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two phospholipase D (PLD) enzymes with both hydrolase and transferase activities were isolated from Streptomyces chromofuscus. There were substantial differences in the kinetic properties of the two PLD enzymes towards monomeric, micellar, and vesicle substrates. The most striking difference was that the higher molecular weight enzyme (PLD57 approximately 57 kDa) could be activated allosterically with a low mole fraction of phosphatidic acid (PA) incorporated into a PC bilayer (Geng et al., J. Biol. Chem. 273 (1998) 12195-12202). PLD42/20, a tightly associated complex of two peptides, one of 42 kDa and the other 20 kDa, had a 4-6-fold higher Vmax toward PC substrates than PLD57 and was not activated by PA. N-Terminal sequencing of both enzymes indicated that both components of PLD42/20 were cleavage products of PLD57. The larger component included the N-terminal segment of PLD57 and contained the active site. The N-terminus of the smaller peptide corresponded to the C-terminal region of PLD57; this peptide had no PLD activity by itself. Increasing the pH of PLD42/20 to 8.9, followed by chromatography of PLD42/20 on a HiTrap Q column at pH 8.5 separated the 42- and 20-kDa proteins. The 42-kDa complex had about the same specific activity with or without the 20-kDa fragment. The lack of PA activation for the 42-kDa protein and for PLD42/20 indicates that an intact C-terminal region of PLD57 is necessary for activation by PA. Furthermore, the mechanism for transmission of the allosteric signal requires an intact PLD57.
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Affiliation(s)
- D Geng
- Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, MA 02467, USA
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Geng D, Chura J, Roberts MF. Activation of phospholipase D by phosphatidic acid. Enhanced vesicle binding, phosphatidic acid-Ca2+ interaction, or an allosteric effect? J Biol Chem 1998; 273:12195-202. [PMID: 9575167 DOI: 10.1074/jbc.273.20.12195] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The activity of bacterial phospholipase D (PLD), a Ca2+-dependent enzyme, toward phosphatidylcholine bilayers was enhanced 7-fold by incorporation of 10 mol % phosphatidic acid (PA) in the vesicle bilayer. Addition of other negatively charged lipids such as phosphatidylinositol, phosphatidylmethanol, and oleic acid either inhibited or had no effect on enzyme activity. Only negatively charged lipids with a free phosphate group, phosphatidylinositol 4-phosphate and lyso-PA, had the same effect as PA on enzyme activity. Changes in vesicle curvature and fusion were not the reason for PA activation; rather, a metal ion-induced lateral segregation of PA in the vesicle bilayer correlated with PLD activation. Significant PA activation was also observed with monomer phosphatidylcholine substrate upon the addition of PA vesicles. The PA activation was caused by Ca2+.PA interacting with PLD at an allosteric site other than active site.
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Affiliation(s)
- D Geng
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02167, USA
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Abstract
PI-specific PLC enzymes are a key component of phosphatidylinositol-mediated signaling pathways since the hydrophobic product, diacylglycerol, activates protein kinase C and the water-soluble product, inositol trisphosphate, is involved in Ca2+ mobilization. Nonspecific, or PC-PLC, enzymes can generate diacylglycerol without Ca2+ mobilization. A series of inhibitors, both lipophilic and water-soluble, have been synthesized to target each of these two classes of PLC enzymes. Design of the inhibitors was based on proposed enzyme mechanisms and available crystal structures. The solution conformations of the lipophilic phospholipid analogs, (diheptanoylphosphatidyl(2-O-methyl)inositol for PI-PLC and a dihexanoyl-sn-(3-N-benzylaminoglycero)phosphoramidocholine for PC-PLC, have been determined using NMR methodology and the interaction of these compounds with bacterial enzymes has been examined. Water-soluble inhibitors include strained cyclic phosphonates for PI-PLC and vanadate for PC-PLC. An eventual goal of this work is to generate compounds that specifically target each type of intracellular PLC activity.
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Affiliation(s)
- M F Roberts
- Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02167, USA
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Miao CY, Li WX, Geng D, Tao LA, Zuberbuhler JS, Zuberbuhler JR. Effect of high altitude on prevalence of congenital heart disease. Chin Med J (Engl) 1988; 101:415-8. [PMID: 3146471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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