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Wang L, Wu Z, Xie D, Zeng R, Cheng W, Hu J, Huang S, Zhou S, Zhong R, Su Y. Reduction of Target Volume and the Corresponding Dose for the Tumor Regression Field after Induction Chemotherapy in Locoregionally Advanced Nasopharyngeal Carcinoma. Cancer Res Treat 2018; 51:685-695. [PMID: 30121968 PMCID: PMC6473261 DOI: 10.4143/crt.2018.250] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 04/26/2018] [Accepted: 08/08/2018] [Indexed: 01/04/2023] Open
Abstract
Purpose This study aims to investigate the feasibility of contouring target volume according to residual tumor and decreasing the dose to the tumor regression field after induction chemotherapy (IC) in locoregionally advanced nasopharyngeal carcinoma (NPC). Materials and Methods From August 2009 to August 2013, patients with stage III–IVB NPC were treated with IC and concurrent chemoradiotherapy. Gross tumor volume of nasopharynx (GTVnx)–residual and gross tumor volume of cervical lymph node (GTVnd)–residual were contoured according to post-IC residual primary tumor and any N+ disease, respectively. The tumor regression field was included in CTVnx1/CTVnd1 and prescribed a dose of 60 Gy. Outcomes and toxicities of all patients were evaluated. Results A total of 57 patients were enrolled. At a median follow-up of 68 months, three cases displayed locoregional recurrence and one case showed both distant metastasis and locoregional recurrence. All locoregional recurrences were in the GTVnx-residual/GTVnd-residual and in-field. The 5-year overall, locoregional relapse-free, distant metastasis-free, and progression-free survival rates were 82.2%, 87.7%, 85.8% and 80.3%, respectively. Conclusion After IC, contouring of GTVnx-residual/GTVnd-residual as residual tumor volume and distribution 60 Gy ofradiation dose to the tumorregression field may be feasible and need further investigation.
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Affiliation(s)
- Lei Wang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Zheng Wu
- Department of Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Dehuan Xie
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Ruifang Zeng
- Department of Radiotherapy, TCM-Integrated Cancer Center of Southern Medical University, Guangzhou, China
| | - Wanqin Cheng
- Department of Oncology, Shunde Hospital, Southern Medical University, Foshan, China
| | - Jiang Hu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Shaomin Huang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Shu Zhou
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Rui Zhong
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Yong Su
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
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Abstract
Previous studies have mainly concentrated on the desirable aspects of project citizenship behavior (PCB) but largely ignored its dark sides. We seek to fill in this gap by exploring whether and when PCB would lead to one specific family cost—namely, work interference with family (WIF). Data were collected from a sample of 311 project employees. It was found that PCB was positively related with time-, strain-, and behavior-based WIF only when project employees possessed low levels of task self-efficacy or work meaningfulness. The theoretical and practical implications for project management are also discussed.
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Affiliation(s)
| | - Nini Xia
- Tianjin University, Tianjin, China
| | - Xiaowen Hu
- Queensland University of Technology, Queensland, Australia
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203
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Zhao Z, Lan H, Li X, El-Battrawy I, Xu Q, Huang M, Zhong R, Liao Z, Lang S, Cyganek L, Zimmermann WH, Wieland T, Borggrefe M, Zhou XB, Akin I. P2866Drug-testing using human-induced pluripotent stem cell-derived cardiomyocytes from a patient with short QT syndrome. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Z Zhao
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - H Lan
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - X Li
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - I El-Battrawy
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Q Xu
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - M Huang
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - R Zhong
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Z Liao
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - S Lang
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - L Cyganek
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen,, Göttingen, Germany
| | - W H Zimmermann
- Institute of Pharmacology and Toxicology, University of Göttingen,, Göttingen, Germany
| | - T Wieland
- Institute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - M Borggrefe
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - X B Zhou
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - I Akin
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
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204
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Wang Z, Li R, Zhong R. Extracellular matrix promotes proliferation, migration and adhesion of airway smooth muscle cells in a rat model of chronic obstructive pulmonary disease via upregulation of the PI3K/AKT signaling pathway. Mol Med Rep 2018; 18:3143-3152. [PMID: 30066869 PMCID: PMC6102654 DOI: 10.3892/mmr.2018.9320] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 10/24/2017] [Accepted: 03/20/2018] [Indexed: 12/11/2022] Open
Abstract
Extracellular matrix (ECM) creates the tissue microenvironment and serves a role in airway wall remodeling in chronic obstructive pulmonary disease (COPD). However, the biological function of ECM in COPD remains to be elucidated. In the present study, 24 healthy Sprague Dawley rats were randomized to normal and COPD groups. COPD was established by intratracheal injection with lipopolysaccharide over 30 days. Subsequently, airway smooth muscle cells (ASMCs) were isolated from rats and served as a model to assess the effects of three ECM components, including collagen type I, laminin and collagen type III (COL‑3). Functional analysis in vitro, using cell counting kit‑8, flow cytometry, wound healing and cell adhesion assays indicated that the ECM components could promote cell proliferation, cell cycle progression, migration and adhesion ability, respectively. Furthermore, as demonstrated by ELISA, treatment with ECM components increased levels of C‑X‑C motif chemokine ligand 1 (CXCL1), CXCL8 and interleukin‑6 in ASMCs. Expression of transforming growth factor β1 (TGFβ1), fibroblast growth factor‑1 (FGF‑1) and tissue inhibitor of metalloproteinase 1 (TIMP1) was increased, and expression of matrix metalloproteinase‑9 (MMP‑9) was decreased following treatment with ECM components, as demonstrated by reverse transcription‑quantitative polymerase chain reaction and western blot analysis. Additionally, specific activation of phosphoinositide 3‑kinase (PI3K) signaling, using insulin‑like growth factor‑1 (IGF‑1), promoted cell proliferation and cell cycle progression, increased expression of TGFβ1, FGF‑1, PI3K, AKT, phospho‑AKT, serine/threonine‑protein kinase mTOR (mTOR), phospho‑mTOR and TIMP1, promoted cell migration capacity and reduced the expression level of MMP‑9 in cells from COPD rats. Consistently, PI3K inhibitor LY294002 exerted the opposite effect to IGF‑1. In conclusion, ECM proteins promoted proliferation, migration and adhesion of ASMCs form rat models of COPD through activation of the PI3K/AKT signaling pathway.
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Affiliation(s)
- Zhengyan Wang
- Department of Respiratory Medicine, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441300, P.R. China
| | - Rui Li
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441300, P.R. China
| | - Rui Zhong
- Second Affiliated Hospital of Hubei University of Medicine, Suizhou, Hubei 442000, P.R. China
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205
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Zhong R, Zhang Z, Zhao H, He X, Wang X, Zhang R. Improving Thermo-Oxidative Stability of Nitrile Rubber Composites by Functional Graphene Oxide. Materials (Basel) 2018; 11:ma11060921. [PMID: 29848944 PMCID: PMC6025397 DOI: 10.3390/ma11060921] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/15/2018] [Accepted: 05/23/2018] [Indexed: 11/30/2022]
Abstract
Graphene oxide (GO), modified with anti-aging agent p-phenylenediamine (PPD), was added into nitrile rubber (NBR) in order to improve the thermo-oxidative stability of NBR. The modification of GO and the transformation of functional groups were characterized by Fourier transform infrared spectroscopy (FTIR), Raman, and X-ray diffraction (XRD). Mechanical performances of NBR composites before and after the thermo-oxidative aging were recorded. The results of dynamic mechanical analysis (DMA) show an increased storage modulus (G’) and a decreased value of area of tan δ peak after introducing modified GO into NBR. It indicates that filler particles show positive interaction with molecular chains. The thermo-oxidative stability of composites was investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). Then, the thermo-oxidative aging kinetic parameters were obtained by the Flynn–Wall–Ozawa (FWO) equation. The results of aging tests show that the thermo-oxidative stability of rubber matrix increases obviously after introducing GO–PPD. In addition, mechanical properties (tensile strength and elongation at break) of both before and after aged NBR/GO–PPD composites were superior to that of NBR. This work provides meaningful guidance for achieving multifunction thermo-oxidative aging resistance rubber composites.
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Affiliation(s)
- Rui Zhong
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation & School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Zhao Zhang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation & School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Hongguo Zhao
- Petrochemical Research Institute, PetroChina, Lanzhou 730060, China.
| | - Xianru He
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation & School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Xin Wang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation & School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Rui Zhang
- Institut für Physik, Universität Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany.
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206
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He Z, Li C, Zhang X, Zhong R, Wang H, Liu J, Du L. The effects of gold nanoparticles on the human blood functions. Artificial Cells, Nanomedicine, and Biotechnology 2018; 46:720-726. [DOI: 10.1080/21691401.2018.1468769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zeng He
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, PR China
| | - Changjian Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China
- Graduate School, University of Chinese Academy of Sciences, Beijing, PR China
| | - Xiaojie Zhang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China
| | - Rui Zhong
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, PR China
| | - Hong Wang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, PR China
| | - Jiaxin Liu
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, PR China
| | - Libo Du
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China
- Graduate School, University of Chinese Academy of Sciences, Beijing, PR China
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207
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Qiao R, Xu J, Zhang Y, Yang W, Zhang B, Wang S, Zhong R, Han B. 100P Prognostic factors in surgically resected N2 small cell lung cancer: Significance of the subcarinal node. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30374-5] [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: 10/17/2022]
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208
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Xia N, Zhong R, Wang X, Tiong R. Cross-domain negative effect of work-family conflict on project citizenship behavior: Study on Chinese project managers. International Journal of Project Management 2018. [DOI: 10.1016/j.ijproman.2017.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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209
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Li N, Xia C, Zhong R, Ju Y, Nan Z, Christensen MJ, Zhang X. Interactive effects of water stress and powdery mildew (Blumeria graminis) on the alkaloid production of Achnatherum inebrians infected by Epichloë endophyte. Sci China Life Sci 2018. [PMID: 29524124 DOI: 10.1007/s11427-017-9245-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Nana Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Chao Xia
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Rui Zhong
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Yawen Ju
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Zhibiao Nan
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Michael J Christensen
- AgResearch, Grasslands Research Centre, Private Bag 11-008, Palmerston North, 4442, New Zealand
| | - Xingxu Zhang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020, China.
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210
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Dalvi MP, Wang L, Zhong R, Kollipara RK, Park H, Bayo J, Yenerall P, Zhou Y, Timmons BC, Rodriguez-Canales J, Behrens C, Mino B, Villalobos P, Parra ER, Suraokar M, Pataer A, Swisher SG, Kalhor N, Bhanu NV, Garcia BA, Heymach JV, Coombes K, Xie Y, Girard L, Gazdar AF, Kittler R, Wistuba II, Minna JD, Martinez ED. Taxane-Platin-Resistant Lung Cancers Co-develop Hypersensitivity to JumonjiC Demethylase Inhibitors. Cell Rep 2018; 19:1669-1684. [PMID: 28538184 DOI: 10.1016/j.celrep.2017.04.077] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [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: 10/27/2015] [Revised: 03/06/2017] [Accepted: 04/27/2017] [Indexed: 12/30/2022] Open
Abstract
Although non-small cell lung cancer (NSCLC) patients benefit from standard taxane-platin chemotherapy, many relapse, developing drug resistance. We established preclinical taxane-platin-chemoresistance models and identified a 35-gene resistance signature, which was associated with poor recurrence-free survival in neoadjuvant-treated NSCLC patients and included upregulation of the JumonjiC lysine demethylase KDM3B. In fact, multi-drug-resistant cells progressively increased the expression of many JumonjiC demethylases, had altered histone methylation, and, importantly, showed hypersensitivity to JumonjiC inhibitors in vitro and in vivo. Increasing taxane-platin resistance in progressive cell line series was accompanied by progressive sensitization to JIB-04 and GSK-J4. These JumonjiC inhibitors partly reversed deregulated transcriptional programs, prevented the emergence of drug-tolerant colonies from chemo-naive cells, and synergized with standard chemotherapy in vitro and in vivo. Our findings reveal JumonjiC inhibitors as promising therapies for targeting taxane-platin-chemoresistant NSCLCs.
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Affiliation(s)
- Maithili P Dalvi
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lei Wang
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rui Zhong
- Department of Clinical Science, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rahul K Kollipara
- Eugene McDermott Center for Human Growth and Development, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hyunsil Park
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Juan Bayo
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Paul Yenerall
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Eugene McDermott Center for Human Growth and Development, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yunyun Zhou
- Department of Clinical Science, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Brenda C Timmons
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jaime Rodriguez-Canales
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Carmen Behrens
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Barbara Mino
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Pamela Villalobos
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Edwin R Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Milind Suraokar
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Apar Pataer
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Stephen G Swisher
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Neda Kalhor
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Natarajan V Bhanu
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Benjamin A Garcia
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - John V Heymach
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kevin Coombes
- Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Yang Xie
- Department of Clinical Science, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Luc Girard
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Adi F Gazdar
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ralf Kittler
- Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Eugene McDermott Center for Human Growth and Development, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ignacio I Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - John D Minna
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elisabeth D Martinez
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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211
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Abstract
Studies have evaluated the association between the SNP miRNA-423 rs6505162 C>A and cancer risk in several cancers with contradictory outcomes. It was reported that miRNA-423 rs6505162 C>A polymorphism was associated with the overall survival and the recurrence-free survival of colorectal carcinoma. However, no studies have reported the association between miRNA-423 rs6505162 C>A polymorphism and susceptibility of colorectal carcinoma.In this study, we investigated the association between miRNA-423 polymorphism with risk and clinicopathological parameters of colorectal carcinoma. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to genotype 117 colorectal carcinoma patients and 84 healthy controls.Our data indicated the frequencies of rs6505162 genotypes and alleles were significantly different between colorectal carcinoma patients and controls. Compared with CC homozygote, the AC heterozygote exhibited a significantly decreased risk of colorectal carcinoma; and the combination of AC and AA genotype was associated with decreased risk of colorectal carcinoma. The allele distribution of rs6505162 was significantly different between cases and controls. Furthermore, miR-423 rs6505162 C>A genotype showed a significant association with metastasis in patients (P = .022).Our study suggested that miR-423 rs6505162 C>A polymorphism was associated with the susceptibility and metastasis of colorectal carcinoma, and that miR-423 rs6505162 C>A polymorphism might be a potential biomarker for colorectal carcinoma.
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Affiliation(s)
- Wenrui Jia
- Department II of Chest Internal Medicine, Hunan Cancer Hospital the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
- School of Laboratory Medicine, Guangdong Medical University, Dongguan
| | - Liuyan Zeng
- Department of Health Management Center, the Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
- China-American Cancer Research Institute, Dongguan Scientific Research Center, Guangdong Medical University; Key Laboratory for Epigenetics of Dongguan City, Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Dongguan, China
| | - Shengqun Luo
- China-American Cancer Research Institute, Dongguan Scientific Research Center, Guangdong Medical University; Key Laboratory for Epigenetics of Dongguan City, Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Dongguan, China
| | - Fei Bai
- Department II of Chest Internal Medicine, Hunan Cancer Hospital the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
| | - Rui Zhong
- Department II of Chest Internal Medicine, Hunan Cancer Hospital the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
| | - Lin Wu
- Department II of Chest Internal Medicine, Hunan Cancer Hospital the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
| | - Guo-Liang Huang
- China-American Cancer Research Institute, Dongguan Scientific Research Center, Guangdong Medical University; Key Laboratory for Epigenetics of Dongguan City, Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Dongguan, China
| | - Xingxiang Pu
- Department II of Chest Internal Medicine, Hunan Cancer Hospital the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha
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212
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Zhong R, Liang B, Xin R, Zhu X, Liu Z, Chen Q, Hou Y, Jin Z, Qi M, Ma S, Liu X. Deoxycytidine kinase participates in the regulation of radiation-induced autophagy and apoptosis in breast cancer cells. Int J Oncol 2018; 52:1000-1010. [PMID: 29393406 DOI: 10.3892/ijo.2018.4250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/04/2018] [Indexed: 11/05/2022] Open
Abstract
Deoxycytidine kinase (dCK) is a rate limiting enzyme critical for the phosphorylation of endogenous deoxynucleosides and for the anti‑tumor activity of many nucleoside analogs. dCK is activated in response to ionizing radiation (IR) and it is required for the G2/M checkpoint induced by IR. However, whether dCK plays a role in radiation-induced autophagy and apoptosis is less clear. In this study, we reported that dCK decreased IR-induced total cell death and apoptosis, and increased IR-induced autophagy in SKBR3 and MDA‑MB‑231 breast cancer cell lines. A molecular switch exists between apoptosis and autophagy. We further demonstrated that serine 74 phosphorylation was required for the regulation of autophagy. In dCK wild‑type (WT) or dCK S74E (mutant) MDA‑MB‑231 cell models, the expression levels of phospho-Akt, phospho-mammalian target of rapamycin (mTOR) and phospho-P70S6K significantly decreased following exposure to IR. Moreover, the ratio of Bcl‑2/Beclin1 (BECN1) significantly decreased in the S74E mutant cells; however, no change was observed in the ratio of Bcl‑2/BAX. Taken together, our findings indicate that phosphorylated and activated dCK inhibits IR-induced total cell death and apoptosis, and promotes IR-induced autophagy through the mTOR pathway and by inhibiting the binding of Bcl‑2 protein to BECN1.
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Affiliation(s)
- Rui Zhong
- Cancer Translational Medicine Laboratory, Jilin Provincial Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Bing Liang
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Rui Xin
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xuanji Zhu
- Medical Records Room, The First Hospital Affiliated to Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhuo Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qiao Chen
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yufei Hou
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhao Jin
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Mu Qi
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Shumei Ma
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiaodong Liu
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
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213
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Chen L, Gao L, Zhong R, Zhang L, Liu J, Tang X, Zhang H. 392 Effect of dietary fiber type with different viscosity and fermentability on the standardized ileal digestibility of amino acids and intestinal digestion of carbohydrate component in a corn–soybean meal diet fed to growing pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.392] [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: 11/13/2022] Open
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214
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Zhong R, Chen L, Gao L, Zhang L, Zhang H. 705 Evaluation of the compositional and nutritional values of mCry1Ac corn and maroACC corn in growing pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.705] [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: 11/13/2022] Open
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215
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Zhong R, Chen L, Zhang L, Zhang H. 380 Transgenerational effect of feeding genetically modified maroACC corn to laying hens and offspring roosters on offspring roosters growth and reproduction. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.380] [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: 11/13/2022] Open
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216
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Zhang X, Chen L, Zhang L, Zhong R, Zhang L, Zhang H. 401 Effect of inclusion of a monocomponent amylase in a corn-soybean meal diet on performance and intestinal histology in 1- to 21-day-old broilers. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.401] [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: 11/13/2022] Open
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217
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Wu ZY, Zhong R, Yang FZ. Novel fullerene-based ferrocene dyad and diferrocene triad: Synthesis and effects of introduction of fullerene[60] and phenyl linker on the thermodynamic stability, the magnetic properties and the band structure. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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218
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Gu J, Hu C, Zhong R, Tu D, Yun H, Zhang W, Leu SY. Isolation of cellulose nanocrystals from medium density fiberboards. Carbohydr Polym 2017; 167:70-78. [DOI: 10.1016/j.carbpol.2017.02.110] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/25/2017] [Accepted: 02/28/2017] [Indexed: 10/20/2022]
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219
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Zhang JF, Zhong R, Zhou Q, Hong X, Huang S, Cui HZ, Hou XF. Recyclable Silica-Supported Iridium Catalysts for Selective Reductive Transformation of Quinolines with Formic Acid in Water. ChemCatChem 2017. [DOI: 10.1002/cctc.201700128] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jing-Fan Zhang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Rui Zhong
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Quan Zhou
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Xi Hong
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Shuang Huang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - He-Zhen Cui
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Xiu-Feng Hou
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
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220
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Qiao R, Han B, Zhong R, Zhao Y, Chu T, Jiang L, Zhong H. Clinical and prognostic characteristics of primary pulmonary non-Hodgkin’s lymphoma: A retrospective analysis of 38 cases in a Chinese population. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx093.008] [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: 11/12/2022] Open
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221
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Qiao R, Chu T, Han B, Zhong R, Chang Q, Teng J, Pei J. Serum DKK-1 as a clinical and prognostic factor in non-small cell lung cancer patients with bone metastases. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx091.048] [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: 11/13/2022] Open
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222
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Zhong H, Zhong R, Yan B. A randomized study to evaluate safety of DCVAC/LUCA added to chemotherapy with carboplatin and pemetrexed vs. chemotherapy alone in patients with stage IV non-small cell lung cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx091.036] [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: 11/12/2022] Open
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223
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Shen XM, Zhong R, Xia WK, Wei D, Ding TB, Liao CY, Niu JZ, Dou W, Wang JJ. Identification of responsive proteins in Panonychus citri exposed to abamectin by a proteomic approach. J Proteomics 2017; 158:9-19. [PMID: 28219754 DOI: 10.1016/j.jprot.2017.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/20/2015] [Revised: 01/19/2017] [Accepted: 01/31/2017] [Indexed: 01/21/2023]
Abstract
Abamectin is a microbial-derived pesticide widely used for control of agricultural pests. However, sustained use of abamectin has led to the development of resistance in some target species. Previous studies on arthropod resistance to abamectin have mainly used traditional biochemical and molecular approaches. To understand the responses of citrus red mite, Panonychus citri, exposed to abamectin, comparative proteomic analysis was conducted using two-dimensional electrophoresis (2-DE). A total of 26 distinct protein spots were present in response to abamectin exposure. Tandem mass spectrometry (MS/MS) identified 16 proteins that were mainly involved in energy metabolism and detoxification. Some remaining proteins were not identifiable, suggesting that they may be novel. The expression levels of transcripts associated with proteins were analyzed by quantitative reverse transcription PCR (qRT-PCR). Furthermore, to validate the proteomic data obtained in the present study, Western-blot experiment was performed and the expression of sHsp and PcE1 proteins were confirmed, respectively. BIOLOGICAL SIGNIFICANCE The citrus red mite has developed resistance to many acaricides, including abamectin. In the current study, we used the proteomic approaches involving 2-DE, matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF), and MS/MS to document changes in adult P. citri during 24h of abamectin exposure. Abamectin stress induced a total of 16 differentially regulated proteins. The proteomic results were validated in mRNA expression patterns using qRT-PCR. This is the first analysis of differentially expressed proteins in P. citri exposed to abamectin. The results help clarify the physiological mechanisms of P. citri responses to abamectin exposure.
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Affiliation(s)
- Xiao-Min Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Rui Zhong
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Wen-Kai Xia
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China; Zhaotong City Branch, Yunnan Provincial Tobacco Corporation, Yunnan 657000, China
| | - Dong Wei
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Tian-Bo Ding
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Chong-Yu Liao
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Jin-Zhi Niu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China.
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224
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Li Y, Zhong R, Wang X, Ai P, Henderson F, Chen N, Luo F. Effects of online cone-beam computed tomography with active breath control in determining planning target volume during accelerated partial breast irradiation. Cancer Radiother 2017; 21:99-103. [PMID: 28325619 DOI: 10.1016/j.canrad.2016.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/12/2016] [Revised: 09/14/2016] [Accepted: 09/16/2016] [Indexed: 02/05/2023]
Abstract
PURPOSE To test if active breath control during cone-beam computed tomography (CBCT) could improve planning target volume during accelerated partial breast radiotherapy for breast cancer. METHODS Patients who were more than 40 years old, underwent breast-conserving dissection and planned for accelerated partial breast irradiation, and with postoperative staging limited to T1-2 N0 M0, or postoperative staging T2 lesion no larger than 3cm with a negative surgical margin greater than 2mm were enrolled. Patients with lobular carcinoma or extensive ductal carcinoma in situ were excluded. CBCT images were obtained pre-correction, post-correction and post-treatment. Set-up errors were recorded at left-right, anterior-posterior and superior-inferior directions. The differences between these CBCT images, as well as calculated radiation doses, were compared between patients with active breath control or free breathing. RESULTS Forty patients were enrolled, among them 25 had active breath control. A total of 836 CBCT images were obtained for analysis. CBCT significantly reduced planning target volume. However, active breath control did not show significant benefit in decreasing planning target volume margin and the doses of organ-at-risk when compared to free breathing. CONCLUSION CBCT, but not active breath control, could reduce planning target volume during accelerated partial breast irradiation.
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Affiliation(s)
- Y Li
- Department of Radiation Oncology, Cancer center, West China Hospital of Sichuan University, N(o). 37 Guoxuexiang, Wuhou District, Chengdu, 610041, China
| | - R Zhong
- Department of Radiation Oncology, Cancer center, West China Hospital of Sichuan University, N(o). 37 Guoxuexiang, Wuhou District, Chengdu, 610041, China
| | - X Wang
- Division of Breast Surgery, Department of Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - P Ai
- Department of Radiation Oncology, Cancer center, West China Hospital of Sichuan University, N(o). 37 Guoxuexiang, Wuhou District, Chengdu, 610041, China
| | - F Henderson
- University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - N Chen
- Department of Radiation Oncology, Cancer center, West China Hospital of Sichuan University, N(o). 37 Guoxuexiang, Wuhou District, Chengdu, 610041, China.
| | - F Luo
- Department of Radiation Oncology, Cancer center, West China Hospital of Sichuan University, N(o). 37 Guoxuexiang, Wuhou District, Chengdu, 610041, China
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225
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Liu B, Wang Y, Gao Y, Zhong R, Zhang F, Zhang M, Zhang H. Effect of the matrix plasticization behavior on mechanical properties of PVC/ABS blends. Journal of Polymer Engineering 2017. [DOI: 10.1515/polyeng-2015-0533] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Acrylonitrile-butadiene-styrene (ABS) grafted copolymer prepared by emulsion polymerization was used to modify different molecular weight poly (vinyl chloride) (PVC) resins. The effects of the molecular weight of the PVC resins on dynamic mechanical analyses (DMA) of PVC/ABS blends and matrix plasticizing behavior on the impact mechanical properties and the morphology were investigated. The tan δ peaks of PVC/ABS blends occurred at the same temperature obtained by DMA, indicating that miscibility of PVC/ABS blends was independent of the molecular weight of PVC. The notched Izod impact test results indicated that the amount of polybutadiene (PB) rubber needed for the brittle-ductile transition (BDT) increases together with the molecular weight of PVC when milled at 165°C. Increasing the operation temperature and adding the plasticizer dioctyl phthalate (DOP) could change the matrix plasticizing extent and the BDT. At a milling temperature of 165°C, the BDT was reached only with 3.6 wt% PB when DOP was added, in contrast to the addition of 7.2 wt% PB in the absence of DOP. The morphology of different plasticized degree of PVC/ABS blends was studied by transmission electron microscopy (TEM) showing that the PVC-1/ABS blends milled at 165°C showed a larger unstained area than the other series of PVC blends.
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226
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Liu S, Cui HZ, Li YL, Yang AL, Zhang JF, Zhong R, Zhou Q, Lin M, Hou XF. Bis-pyrazolyl functionalized mesoporous SBA-15 for the extraction of Cr(III) and detection of Cr(VI) in artificial jewelry samples. Microchem J 2017. [DOI: 10.1016/j.microc.2016.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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227
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Affiliation(s)
- Rui Zhong
- Molecular Catalysis, Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
| | - Anja C. Lindhorst
- Molecular Catalysis, Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
| | - Florian J. Groche
- Molecular Catalysis, Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
| | - Fritz E. Kühn
- Molecular Catalysis, Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
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228
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Qiu YF, Liu ZG, Yang WJ, Zhao Y, Tang J, Tang WZ, Jin Y, Li F, Zhong R, Wang H. Research progress in the treatment of small cell lung cancer. J Cancer 2017; 8:29-38. [PMID: 28123595 PMCID: PMC5264037 DOI: 10.7150/jca.16822] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 09/18/2016] [Indexed: 01/04/2023] Open
Abstract
Small cell lung cancer (SCLC) accounts for approximately 10-15% of all lung cancers. No significant improvement has been made for patients with SCLC in the past several decades. The main progresses were the thoracic radiation and prophylactic cranial irradiation (PCI) that improved the patient survival rate. For patients with limited disease and good performance status (PS), concurrent chemoradiotherapy (CCRT) followed by PCI should be considered. For extensive disease, the combination of etoposide and platinum-based chemotherapy remains the standard treatment and consolidative thoracic radiotherapy is beneficial for patients who have a significant respond to initial chemotherapy. However, the prognosis still remains poor. Recently, efforts have been focused on molecular targets and immunotherapy. But numerous molecular targets methods have failed to show a significant clinical benefit in patients with SCLC. It is anticipated that further development of research will depend on the on-going trials for molecular targeted therapy and immunotherapy which are promising and may improve the outcomes for SCLC in the next decade.
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Affiliation(s)
| | - Zhi-gang Liu
- ✉ Corresponding authors: Hui Wang, M.D., Department of Radiation Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University; E-mail: Fax: 0731-88651999. Zhi-gang Liu, M.D., Ph.D., Department of Radiation Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University. E-mail:
| | | | | | | | | | | | | | | | - Hui Wang
- Key Laboratory of Translational Radiation Oncology, Hunan Province. Department of Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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229
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Zhou Q, Zhang JF, Cao H, Zhong R, Hou XF. Synthesis of o-Alkenylated 2-Arylbenzoxazoles via Rh-Catalyzed Oxidative Olefination of 2-Arylbenzoxazoles: Scope Investigation, Structural Features, and Mechanism Studies. J Org Chem 2016; 81:12169-12180. [DOI: 10.1021/acs.joc.6b01836] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Quan Zhou
- Department of Chemistry, Fudan University, 220
Handan Road, Shanghai 200433, China
| | - Jing-Fan Zhang
- Department of Chemistry, Fudan University, 220
Handan Road, Shanghai 200433, China
| | - Hui Cao
- Department of Chemistry, Fudan University, 220
Handan Road, Shanghai 200433, China
| | - Rui Zhong
- Department of Chemistry, Fudan University, 220
Handan Road, Shanghai 200433, China
| | - Xiu-Feng Hou
- Department of Chemistry, Fudan University, 220
Handan Road, Shanghai 200433, China
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230
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Chen L, Zhong R, Zhang L, Gao L, Zhang H. 0975 Trans-generational effect of feeding genetically modified mCry1Ac corn to laying hens and offspring on offspring growth and health. J Anim Sci 2016. [DOI: 10.2527/jam2016-0975] [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: 11/13/2022] Open
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231
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Gao L, Chen L, Zhong R, Zhang L, Zhang H. 935 Addition of optimal non-starch polysaccharide enzymes using in vitro method to a corn-soybean meal diet and a corn-miscellaneous meal diet for growing pigs. J Anim Sci 2016. [DOI: 10.2527/jam2016-0935] [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: 11/13/2022] Open
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232
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Xia WK, Shen XM, Ding TB, Niu JZ, Zhong R, Liao CY, Feng YC, Dou W, Wang JJ. Functional analysis of a chitinase gene during the larval-nymph transition in Panonychus citri by RNA interference. Exp Appl Acarol 2016; 70:1-15. [PMID: 27388447 DOI: 10.1007/s10493-016-0063-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 02/06/2016] [Accepted: 06/29/2016] [Indexed: 06/06/2023]
Abstract
Chitinases are hydrolytic enzymes that are required for chitin degradation and reconstruction in arthropods. In this study, we report a cDNA sequence encoding a putative chitinase (PcCht1) from the citrus red mite, Panonychus citri. The PcCht1 (564 aa) possessed a signal peptide, a conserver domain, and a chitin-binding domain. Structural and phylogenetic analyses found that PcCht1 had high sequence similarity to chitinases in Tetranychus urticae. Real-time quantitative PCR analyses showed that the transcript levels of PcCht1 peaked periodically in larval and nymph stages. Moreover, significant increase of PcCht1 transcript level in the larvae was observed upon the exposure of diflubenzuron. In contrast, exposures of the larvae to diflubenzuron resulted in the decreased chitin content. Furthermore, through a feeding-based RNA interference approach, we were able to reduce the PcCht1 transcript level by 59.7 % in the larvae, and consequently the treated larvae showed a very low molting rate compared with the control. Our results expanded the understanding of the important role of PcCht1 in the growth and development of P. citri.
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Affiliation(s)
- Wen-Kai Xia
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Xiao-Min Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Tian-Bo Ding
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Jin-Zhi Niu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Rui Zhong
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Chong-Yu Liao
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Ying-Cai Feng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400716, China.
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Sajesh B, Zhong R, Wang Y, Pu JX, Sun HD, Remake M, Taylor M, Symons M, Ruggieri R, Vanan MI. MB-48PEROXIREDOXIN 1 IS A POTENTIAL THERAPEUTIC TARGET IN GROUP-3 MEDULLOBLASTOMAS. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now076.46] [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: 11/13/2022] Open
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234
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Liang B, Liu X, Liu Y, Kong D, Liu X, Zhong R, Ma S. Inhibition of autophagy sensitizes MDR-phenotype ovarian cancer SKVCR cells to chemotherapy. Biomed Pharmacother 2016; 82:98-105. [PMID: 27470344 DOI: 10.1016/j.biopha.2016.04.054] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 01/05/2023] Open
Abstract
UNLABELLED AUTOPHAGY: is an intracellular lysosomal degradation pathway where its primary function is to allow cells to survive under stressful conditions. Autophagy is, however, a double-edge sword that can either promote cell survival or cell death. CHEMORESISTANCE: is a major challenge in the clinical treatment of ovarian cancer, of which the underlying mechanisms remain unknown. OBJECTIVE The aim of the present study was to explore the role of autophagy in vincristine (VCR) resistant ovarian cancer cells. METHODS The SKOV3 parental cell line and SKVCR, the VCR-resistant ovarian carcinoma cells were used. 3-MA (3-Methyladenine) and CQ (Chloroquine) were also used as autophagy inhibitors. CCK8 (Cell Counting Kit-8) was used to detect cell viability, quantitative real-time PCR and Western blot were used to detect the expressions of mRNA and protein, MDC staining and flow cytometry were used to detect autophagy and apoptosis, respectively. RESULTS Compared with parental SKOV3 cells, SKVCR cells showed Multidrug Resistance (MDR). SKVCR cells demonstrated higher autophagy levels than SKOV3 cells, which could be inhibited by 3-MA and CQ. In SKVCR cells, VCR increased apoptosis levels further, 3-MA and CQ inhibited autophagy and potentiated the cytotoxicity by VCR. Moreover, 3-MA and CQ overcame the acquired VCR resistance in SKVCR cells by enhancing VCR-induced cytotoxicity, and promote apoptosis. CONCLUSIONS Our data indicate that autophagy has a protective role in the multi-drug resistant SKVCR cells. The inhibition of autophagy increases the killing effects of VCR by increasing apoptosis and inhibiting autophagy, suggesting a better strategy for the treatment of drug-resistant SKVCR cells.
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Affiliation(s)
- Bing Liang
- Department of Obstetrics and Gynecology Care, School of Nursing, Jilin University, Changchun 130021, China; Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Xiaodong Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Center for Radiological Research, Changchun, 130021, China; Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Yang Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Dejuan Kong
- Department of Pediatric Ultrasound, First Hospital of Jilin University, Changchun 130021, China
| | - Xiaomei Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Rui Zhong
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Shumei Ma
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, Jilin 130021, China.
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235
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Zhang Y, Li X, Grailer JJ, Wang N, Wang M, Yao J, Zhong R, Gao GF, Ward PA, Tan DX, Li X. Melatonin alleviates acute lung injury through inhibiting the NLRP3 inflammasome. J Pineal Res 2016; 60:405-14. [PMID: 26888116 DOI: 10.1111/jpi.12322] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [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: 01/18/2016] [Accepted: 02/12/2016] [Indexed: 12/13/2022]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinically severe respiratory disorders, and there are currently no Food and Drug Administration-approved drug therapies. Melatonin is a well-known anti-inflammatory molecule, which has proven to be effective in ALI induced by many conditions. Emerging studies suggest that the NLRP3 inflammasome plays a critical role during ALI. How melatonin directly blocks activation of the NLRP3 inflammasome in ALI remains unclear. In this study, using an LPS-induced ALI mouse model, we found intratracheal (i.t.) administration of melatonin markedly reduced the pulmonary injury and decreased the infiltration of macrophages and neutrophils into lung. During ALI, the NLRP3 inflammasome is significantly activated with a large amount of IL-1β and the activated caspase-1 occurring in the lung. Melatonin inhibits the activation of the NLRP3 inflammasome by both suppressing the release of extracellular histones and directly blocking histone-induced NLRP3 inflammasome activation. Notably, i.t. route of melatonin administration opens a more efficient therapeutic approach for treating ALI.
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Affiliation(s)
- Yong Zhang
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiru Li
- Department of General Surgery, The 301th Hospital of PLA, Beijing, China
| | - Jamison J Grailer
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Na Wang
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Mingming Wang
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jianfei Yao
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Rui Zhong
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - George F Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences Beijing, China
| | - Peter A Ward
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Dun-Xian Tan
- The University of Texas Health Science Center at San Antonio Department of Cellular and Structural Biology, San Antonio, TX, USA
| | - Xiangdong Li
- State Key Laboratory of the Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
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Zhou L, Li R, Tang F, Liu J, Tong R, Xue J, Liu Y, Wang S, Zhong R, Lu Y. 83P Cerebral toxicity of whole brain radiotherapy plus icotinib in rats. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30196-4] [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: 10/21/2022]
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237
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Wei F, Zhou Z, Wang L, Liu S, Zhong R, Liu X, Cui S, Pan X, Gao M, Zhao Y. Biomechanical evaluation of monosegmental pedicle instrumentation in a calf spine model and the role of fractured vertebrae in screw stability. BMC Vet Res 2016; 12:57. [PMID: 26993472 PMCID: PMC4797180 DOI: 10.1186/s12917-016-0677-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/24/2014] [Accepted: 03/07/2016] [Indexed: 11/23/2022] Open
Abstract
Background Monsegmental pedicle instrumentation (MSPI) has been used to treat thoracolumbar fractures. However, there are few reports about the biomechanical characteristics of MSPI compared with traditional short-segment pedicle instrumentation (SSPI) in management of unstable thoracolumbar fractures, and the influence of vertebral fracture on screw stability is still unclear. Methods This study was to compare the immediate stability between MSPI and SSPI in management of unstable L1 fracture, and to evaluate the role of fractured vertebrae in screw stability. Two studies were performed: in the first study, sixteen fresh calf spines (T11-L3) were divided into two groups, in which unstable fractures at L1 were produced and then instrumented with MSPI or SSPI respectively. The range of motion (ROM) and lax zone (LZ) of specimens were evaluated with pure moment of 6 Nm loaded. The second study measured and compared the pullout strength of screws inserted in to 16 intact and fractured vertebrae of calf spines (L1-3) respectively. The correlation of pullout strength with load sharing classification (LSC) of fractured vertebrae was analyzed. Results No significant difference in the ROM and LZ of the destabilized segments after fixation between MSPI and SSPI, except in axial rotation of ROM (P < 0.05). After fatigue cyclic loading, the MSPI showed a significant increase of ROM during lateral bending and axial rotation (P < 0.05); however, there were no significant differences in the LZ during all loading models between groups (P > 0.05). The mean pullout strength of pedicle screws in fractured vertebrae decreased by 13.7 %, compared with that of intact vertebrae (P > 0.05), and had a low correlation with LSC of the fractured vertebrae (r = 0.293, P > 0.05). Conclusions MSPI can provide effective immediate stability for management of unstable thoracolumbar fractures; however, it has less fatigue resistance during lateral bending and axial rotation compared with SSPI. LSC score of fractured vertebrae is not a major influence on the pullout strength of screws.
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Affiliation(s)
- Fuxin Wei
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Zhiyu Zhou
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China.,The medical school of Shenzhen University, Shenzhen, China
| | - Le Wang
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Shaoyu Liu
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China.
| | - Rui Zhong
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Xizhe Liu
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Shangbin Cui
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Ximin Pan
- Department of Radiology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Manman Gao
- Department of Spine Surgery, the First Affiliated Hospital and Orthopedic Research, Institute of Sun Yat-sen University, Guangzhou, China
| | - Yajing Zhao
- The medical school of Sun Yat-sen University, Guangzhou, China
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Spiotto M, Bechill J, Zhong R. miR-203 Inhibits Human Papillomavirus Oral Tumor Growth by Suppressing Proliferation in Differentiated Tumor Cells. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Spiotto M, Zhong R, Melotek J, Bechill J. E2F1 Mediates Human Papillomavirus (HPV) Oncogene Toxicity and Suppresses HPV Oral Tumor Growth. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.259] [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: 11/28/2022]
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240
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Lu SP, Feng S, Ceulemans B, Wang M, Zhong R, Munteanu A. Multiview conversion of 2D cartoon images. Communications in Information and Systems 2016. [DOI: 10.4310/cis.2016.v16.n4.a2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shao-Ping Lu
- Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel (VUB), Belgium
| | - Sibo Feng
- Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel (VUB), Belgium
| | - Beerend Ceulemans
- Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel (VUB), Belgium
| | - Miao Wang
- Department of Computer Science, Tsinghua University, Beijing, China
| | - Rui Zhong
- Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel (VUB), Belgium
| | - Adrian Munteanu
- Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel (VUB), Belgium
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Kogar A, Vig S, Thaler A, Wong MH, Xiao Y, Reig-I-Plessis D, Cho GY, Valla T, Pan Z, Schneeloch J, Zhong R, Gu GD, Hughes TL, MacDougall GJ, Chiang TC, Abbamonte P. Surface Collective Modes in the Topological Insulators Bi_{2}Se_{3} and Bi_{0.5}Sb_{1.5}Te_{3-x}Se_{x}. Phys Rev Lett 2015; 115:257402. [PMID: 26722943 DOI: 10.1103/physrevlett.115.257402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Indexed: 06/05/2023]
Abstract
We used low-energy, momentum-resolved inelastic electron scattering to study surface collective modes of the three-dimensional topological insulators Bi_{2}Se_{3} and Bi_{0.5}Sb_{1.5}Te_{3-x}Se_{x}. Our goal was to identify the "spin plasmon" predicted by Raghu and co-workers [Phys. Rev. Lett. 104, 116401 (2010)]. Instead, we found that the primary collective mode is a surface plasmon arising from the bulk, free carriers in these materials. This excitation dominates the spectral weight in the bosonic function of the surface χ^{"}(q,ω) at THz energy scales, and is the most likely origin of a quasiparticle dispersion kink observed in previous photoemission experiments. Our study suggests that the spin plasmon may mix with this other surface mode, calling for a more nuanced understanding of optical experiments in which the spin plasmon is reported to play a role.
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Affiliation(s)
- A Kogar
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - S Vig
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - A Thaler
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - M H Wong
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - Y Xiao
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - D Reig-I-Plessis
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - G Y Cho
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - T Valla
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Z Pan
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J Schneeloch
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R Zhong
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G D Gu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T L Hughes
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - G J MacDougall
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - T-C Chiang
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
| | - P Abbamonte
- Department of Physics and Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
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Zhong R, Liu H, Wang H, Li X, He Z, Gangla M, Zhang J, Han D, Liu J. Adaption to High Altitude: An Evaluation of the Storage Quality of Suspended Red Blood Cells Prepared from the Whole Blood of Tibetan Plateau Migrants. PLoS One 2015; 10:e0144201. [PMID: 26637115 PMCID: PMC4670121 DOI: 10.1371/journal.pone.0144201] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 11/13/2015] [Indexed: 11/18/2022] Open
Abstract
Hypoxia has been reported to cause the significant enhancement of hemoglobin (Hb) and hematocrit (Hct), which stabilizes at relatively high levels after an individual ascends to a high altitude. However, the quality of the suspended red blood cells (SRBCs) obtained from individuals at high altitudes such as Tibetan plateau migrants after storage has not been studied. In this study, we compared the storage quality of SRBCs prepared from Tibetan plateau and Deyang lowland populations by adding a normal volume of mannitol-adenine-phosphate (MAP), which is a common additive solution used in blood storage in Asian countries. The storage cell characteristics were examined on days1, 7, 14 and 35.We found higher Hct and Hb levels and viscosity in the high altitude samples. The metabolic rates, including those for electrolytes and lactate, were higher in plateau SRBCs than in lowland SRBCs; these findings were consistent with the higher osmotic fragility and hemolysis of plateau SRBCs throughout the entire storage period. In addition, the reduction rates of 2,3-diphosphoglycerate (2,3-DPG) and oxygen tension to attain 50% oxygen saturation of Hb (P50) in plateau SRBCs were higher than those in lowland SRBCs, and the oxygen delivering capacity in plateau SRBCs was weaker than that in lowland SRBCs. We concluded that the storage quality of plateau SRBCs was inferior to that of lowland SRBCs when using the same concentration of MAP. We suggested that the optimal formula, including the MAP concentration or even a new additive solution, to store the plateau SRBCs must be assessed and regulated.
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Affiliation(s)
- Rui Zhong
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Hua Liu
- Tibet Autonomous Region blood center, Lhasa, Tibet, China
| | - Hong Wang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Xiaojuan Li
- Tibet Autonomous Region blood center, Lhasa, Tibet, China
| | - Zeng He
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Meiduo Gangla
- Tibet Autonomous Region blood center, Lhasa, Tibet, China
| | - Jingdan Zhang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Dingding Han
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Jiaxin Liu
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
- * E-mail:
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Dong J, Tian L, Li S, Mo Y, Liu L, Zhong R. Differences in extension patterns between adenoid cystic carcinoma of the nasopharynx and nasopharyngeal carcinoma on MRI. Int J Clin Exp Pathol 2015; 8:15960-15968. [PMID: 26884870 PMCID: PMC4730083] [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] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 11/07/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE This study aimed to map differences in extension patterns between adenoid cystic carcinoma (ACC) of the nasopharynxandnasopharyngeal carcinomaon magnetic resonance imaging (MRI) and provide more information for treatments. METHODS MRI examinations and clinical records were reviewed in 18 patients with ACC of the nasopharynx and 182 patients with nasopharyngeal carcinoma (NPC). All patients had biopsy to confirm diagnosis. Differences between NPC and ACC in terms of extension patterns were identified by the retrospective analysis of images from patients undergoing MRI. RESULTS Patients with ACC of the nasopharynx obtained a higher rate of staging T4 (14.3% vs. 38.9%, P = 0.007) and paralyzed cranial nerves (6.0% vs. 38.9%, P < 0.001). Epstein-Barr (EB) virus infection was not correlated with ACC incidence. No significant difference was observed in invasion to skull base between ACC of the nasopharynx and NPC (53.3% vs. 66.7%, P = 0.277). Involvement of cranial nerve canal (32.4% vs. 55.6%, P = 0.049) and cavernous sinus (13.7% vs. 33.3%, P = 0.028) was more frequently detected by MRI on patients with ACC of the nasopharynx. Lymph node metastasis was infrequently diagnosed in patients with ACC of the nasopharynx. CONCLUSION As seen on MRI images, ACC of the nasopharynx is characterized by a high incidence of perineural invasion, frequent and aggressive local infiltration, and infrequently, lymph node metastasis.
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Affiliation(s)
- Jun Dong
- Department of VIP Patients, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
| | - Li Tian
- Department of Medical Imaging and Interventional Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
| | - Sheng Li
- Department of Medical Imaging and Interventional Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
| | - Yunxian Mo
- Department of Medical Imaging and Interventional Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
| | - Lizhi Liu
- Department of Medical Imaging and Interventional Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
| | - Rui Zhong
- Department of Medical Imaging and Interventional Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineEast Dong Feng Road 651, Guangzhou 510060, Guangdong, P. R. China
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Bechill J, Zhong R, Spiotto M. Compounds Containing 2-[(E)-2-Phenylvinyl]-8-Quinolinol Core Structure Activate p53 and Act as Potential Radiation Sensitizers for Cancer Cells. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.439] [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: 11/29/2022]
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Eduati F, Mangravite LM, Wang T, Tang H, Bare JC, Huang R, Norman T, Kellen M, Menden MP, Yang J, Zhan X, Zhong R, Xiao G, Xia M, Abdo N, Kosyk O, Friend S, Dearry A, Simeonov A, Tice RR, Rusyn I, Wright FA, Stolovitzky G, Xie Y, Saez-Rodriguez J. Erratum: Prediction of human population responses to toxic compounds by a collaborative competition. Nat Biotechnol 2015; 33:1109. [PMID: 26448092 PMCID: PMC7608305 DOI: 10.1038/nbt1015-1109a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liao YQ, Liao YL, Li J, Peng LX, Wan YY, Zhong R. Polymorphism in miR-146a associated with clinical characteristics and outcomes in gastric cancer patients treated with adjuvant oxaliplatin and fluoropyrimidines. Onco Targets Ther 2015; 8:2627-33. [PMID: 26396533 PMCID: PMC4577269 DOI: 10.2147/ott.s89635] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Purpose Polymorphism in miR-146a (rs2910164) has been reported to be associated with gastric cancer risk in the Chinese population. We aimed at evaluating the relationship between rs2910164 and the clinical characteristics and outcomes in stage IB–III gastric cancer patients treated with adjuvant chemotherapy after surgery. Materials and methods Ninety-eight patients with stage IB–III gastric cancer treated with surgical resection followed by adjuvant chemotherapy of oxaliplatin and fluoropyrimidines were included in the analysis. Genomic DNA was extracted from peripheral blood sample of all patients. Polymerase chain reaction-based restriction fragment length polymorphism assay was used to determine the genotypes. Results The 2-year disease-free survival rate was 63%, and the 3-year overall survival (OS) rate was 73.4%. In dominant model, we found that rs2910164 GC + CC (G: guanine, C: cytosine) genotype carriers were less likely to develop lymph node metastasis (P=0.059). The 3-year OS was significantly different for patients with or without lymph node metastasis (89.3% vs 63.7%, P=0.015) and for patients with stage I–III disease (100.0%, 88.6%, and 56.9%; P=0.018). The 3-year OS for GC + CC carriers was significantly higher than for GG carriers (75.1% vs 66.7%, P=0.041). After the multivariant Cox regression analysis, histological grade (P=0.033, relative risk: 5.116, 95% confidence interval: 1.145–22.865) and lymph node status (P=0.031, relative risk: 6.648, 95% confidence interval: 1.191–37.118) were found to be independent prognostic factors for these patients. Conclusion rs2910164 could be associated with the lymph node metastasis and prognosis of Chinese gastric cancer patients treated with oxaliplatin and fluoropyrimidines after surgical resection.
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Affiliation(s)
- Yu-Qian Liao
- Department of Medical Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Yu-Lu Liao
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Jun Li
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Li-Xiang Peng
- Department of Medical Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Yi-Ye Wan
- Department of Medical Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Rui Zhong
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi Province, People's Republic of China
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Liang N, Zhong R, Hou X, Zhao G, Ma S, Cheng G, Liu X. Ataxia-telangiectasia mutated (ATM) participates in the regulation of ionizing radiation-induced cell death via MAPK14 in lung cancer H1299 cells. Cell Prolif 2015; 48:561-72. [PMID: 26269117 DOI: 10.1111/cpr.12203] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 06/20/2015] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES The role of Ataxia-telangiectasia mutated (ATM) in response to DNA damage has previously been studied, but its underlying mechanisms specific to ionizing radiation (IR) have remained to be elucidated. In this study, function of ATM on radiation-induced cell death in lung cancer H1299 cells was analysed. MATERIALS AND METHODS Human lung cancer cells, H1299, were used, and cell models with ATM(-/-) and MAPK14(-/-) were established by genetic engineering. Radiosensitivity was analysed using colony formation assays. Western blotting and co-immunoprecipitation were implemented to detect protein expression and interaction. MDC staining and GFP-LC3 relocalization were used to detect autophagy. RESULTS Autophagy as well as phosphorylation of ATM was activated by ionizing radiation. Both the inhibitor of ATM, KU55933 and ATM silencing reduced phosphorylation of ATM and MAPKAPK2 expression. Both ATM(-/-) and MAPK14(-/-) cells displayed hypersensitivity. IR increased autophagy level by more than 129% in DMSO-treated cells, while only by 47% and 27% in KU55933-treated and ATM(-/-) cells respectively. MAPK14 knock-down alone gave rise to the basal autophagy level, but decreased notably after IR. KU55933 and ATM knock-down inhibited IR-induced autophagy by activating mTOR pathways. Both Beclin1-PI3KIII and Beclin1-MAPKAPK2 interactions as were remarkably affected by silencing either ATM or MAPK14. CONCLUSIONS ATM promoted IR-induced autophagy via the MAPK14 pathway, mTOR pathway and Beclin1/PI3KIII complexes. MAPK14 contributed to radiosensitization of H1299 cells.
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Affiliation(s)
- Nan Liang
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China.,University of Manitoba, Winnipeg, Manitoba, R3E 0V9, Canada
| | - Rui Zhong
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China
| | - Xue Hou
- Department of Radiation Oncology, 1st Hospital Affiliated to Jilin University, Changchun, 130021, China
| | - Gang Zhao
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China
| | - Shumei Ma
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China.,University of Manitoba, Manitoba Institute of Cell Biology, Winnipeg, Manitoba, R3E 0V9, Canada
| | - Guanghui Cheng
- Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun, 130021, China
| | - Xiaodong Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China.,Department of Radiation Oncology, 1st Hospital Affiliated to Jilin University, Changchun, 130021, China
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Ren HY, Zhong R, Ding XP, Chen ZY, Jing YL. Investigation of polymorphisms in exon7 of the NSUN7 gene among Chinese Han men with asthenospermia. Genet Mol Res 2015; 14:9261-8. [PMID: 26345859 DOI: 10.4238/2015.august.10.6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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
Previous studies have shown that genetic polymorphisms in exon7 of the NSUN7 gene can be used as an infertility marker in Iranian men with asthenospermia. However, there have been no equivalent studies in China. In the present study, we investigated the possible association between the genetic polymorphisms in exon7 of NSUN7 and asthenospermia in a Chinese Han population. We recruited 240 asthenospermic men as a patient group and 256 normospermic men as a control group, and analyzed the semen parameters on the basis of World Health Organization (WHO) guidelines. The genetic polymorphisms in exon7 of NSUN7 were detected by DNA sequence analysis. The results were analyzed statistically and a P value < 0.05 was considered significant. There were two genetic polymorphisms, c.906C>T and c.922T>G, in exon7 of NSUN7. We found relatively similar genotypes and allele frequencies between the two groups (P = 0.928, P = 0.928, respectively). The combined genotypes of the two polymorphisms did not identify a haplotype associated with asthenospermia (P = 0.824, P = 0.824, respectively). Our findings revealed that genetic polymorphisms in exon7 of the NSUN7 gene are not associated with asthenospermia in Chinese Han men.
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Affiliation(s)
- H Y Ren
- Institute of Medical Genetics, College of Life Science, Sichuan University, Chengdu, China
| | - R Zhong
- Institute of Medical Genetics, College of Life Science, Sichuan University, Chengdu, China
| | - X P Ding
- Institute of Medical Genetics, College of Life Science, Sichuan University, Chengdu, China
| | - Z Y Chen
- Institute of Medical Genetics, College of Life Science, Sichuan University, Chengdu, China
| | - Y L Jing
- Institute of Medical Genetics, College of Life Science, Sichuan University, Chengdu, China
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249
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Zhong R, Xu H, Chen G, Zhao G, Gao Y, Liu X, Ma S, Dong L. The role of hypoxia-inducible factor-1α in radiation-induced autophagic cell death in breast cancer cells. Tumour Biol 2015; 36:7077-83. [PMID: 25874499 DOI: 10.1007/s13277-015-3425-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 12/14/2014] [Accepted: 04/06/2015] [Indexed: 12/21/2022] Open
Abstract
Hypoxia-inducible factor-1α (HIF-1α) is a major effector in cell survival response to hypoxia, while the roles of HIF-1α in radiation-induced autophagy are still unclear in breast cancer cells. Human breast cancer carcinoma MCF-7 cells were stably transfected with pSUPER-shRNA against human HIF-1α or a scrambled sequence with no homology to mammalian genes, named as pSUPER-HIF-1α and pSUPER-SC, respectively. Cell Counting Kit-8 (CCK-8) assay and colony formation assay were used to detect cell viability, Western blot was used to detect protein expression, monodansylcadaverine (MDC) staining was used to analyze autophagy, and Hoechts/PI staining was used to assess apoptosis. Ionizing radiation (IR) and cobalt chloride (CoCl2) could induce HIF-1α expression and increase the microtubule-associated protein 1 light chain 3 (MAPLC3)-II/MAPLC3-I ratio, especially in radiation + CoCl2 group. After the silencing of HIF-1α, the radiosensitivity of MCF-7 cells increased and the autophagy level decreased in response to DNA damage induced by ionizing radiation, but there was no influence on IR-induced apoptosis. HIF-1α silencing also increased the expression of phospho-Akt, mTOR, and P70S6K and activated the mTOR signals significantly. Hypoxia can induce autophagy and also improve the IR-induced autophagy via the suppression of Akt/mTOR/P70S6K pathway, which consequently lead to radioresistance.
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Affiliation(s)
- Rui Zhong
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China
| | - Huiying Xu
- Department of Ultrasound, The 1st Hospitals Affiliated to Jilin University, Changchun, 130021, China
| | - Ge Chen
- Department of Stomatology, The 1st Hospitals Affiliated to Jilin University, Changchun, 130021, China
| | - Gang Zhao
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China
| | - Yan Gao
- Department of Radiation Oncology, The 1st Hospitals Affiliated to Jilin University, Changchun, 130021, China
| | - Xiaodong Liu
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China.,Department of Radiation Oncology, The 1st Hospitals Affiliated to Jilin University, Changchun, 130021, China
| | - Shumei Ma
- Key Laboratory of Radiobiology (Ministry of Health), School of Public Health, Jilin University, Changchun, 130021, China. .,Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB, R3T 3T2, Canada.
| | - Lihua Dong
- Department of Radiation Oncology, The 1st Hospitals Affiliated to Jilin University, Changchun, 130021, China.
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Luo J, Cao K, Huang S, Li L, Yu T, Cao C, Zhong R, Gong M, Zhou Z, Zou X. Comparison of anterior approach versus posterior approach for the treatment of multilevel cervical spondylotic myelopathy. Eur Spine J 2015; 24:1621-30. [PMID: 25840781 DOI: 10.1007/s00586-015-3911-4] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 03/23/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE The purpose of this study is to evaluate the clinical outcomes, complications, and surgical trauma between anterior and posterior approaches for the treatment of multilevel cervical spondylotic myelopathy (CSM). STUDY DESIGN Systematic review and meta-analysis. METHODS Randomized controlled trials or non-randomized controlled trials published up to November 2014 that compared the clinical effectiveness of anterior and posterior surgical approaches for the treatment of multilevel CSM were acquired by a comprehensive search in four electronic databases (PubMed, EMBASE, Cochrane Controlled Trial Register and MEDLINE). Exclusion criteria were non-controlled studies, combined anterior and posterior surgery and cervical myelopathy caused by ossification of the posterior longitudinal ligament. The main end points included: recovery rate; Japanese Orthopedic Association (JOA) score; complication rate; reoperation rate; blood loss; operation time and length of stay. RESULTS A total of ten studies were included in the meta-analysis; none of which were randomized controlled trials. All of the selected studies were of high quality as indicated by the Newcastle-Ottawa scale. In six studies involving 467 patients, there was no significant difference in the preoperative JOA score between the anterior surgery group and the posterior group [P > 0.05, WMD -0.00 (-0.50, 0.50)]. In four studies involving 268 patients, the postoperative JOA score was significantly higher in the anterior surgery group compared with the posterior surgery group [P < 0.05, WMD 0.79 (0.16, 1.42)]. In five studies involving 420 patients, there was no statistically significant difference in recovery rate between the anterior and posterior surgery groups [P > 0.05, WMD 2.73 (-8.69, 14.15)]. In nine studies involving 804 patients, the postoperative complication rate was significantly higher in the anterior surgery group compared with the posterior surgery group [P = 0.009, OR 1.65 (1.13, 2.39)]. In five studies involving 294 patients, the reoperation rate was significantly higher in the anterior surgery group compared with the posterior surgery group [P = 0.0001, OR 8.67 (2.85, 26.34)]. In the four studies involving 252 patients, the intraoperative blood loss and operation time was significantly higher in the anterior surgery group compared with the posterior surgery group [P < 0.05, WMD -40.25 (-76.96, -3.53) and P < 0.00001, WMD 61.3 (52.33, 70.28)]. In the three studies involving 192 patients, the length of stay was significantly lower in the anterior surgery group compared with the posterior surgery group [P < 0.00001, WMD -1.07 (-2.23, -1.17)]. CONCLUSIONS In summary, our meta-analysis suggested that a definitive conclusion could not be reached regarding which surgical approach is more effective for the treatment of multilevel CSM. Although anterior approach was associated with better postoperative neural function than posterior approach in the treatment of multilevel CSM, there was no apparent difference in the neural function recovery rate between the two approaches. Higher rates of surgery-related complication and reoperation should be taken into consideration when anterior approach is used for patients with multilevel CSM.
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Affiliation(s)
- Jiaquan Luo
- Department of Spine Surgery/Orthopaedic Research Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China,
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