1
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Liu G, Chen H, Cao X, Jia L, Rui W, Zheng H, Huang D, Liu F, Liu Y, Zhao X, Lu P, Lin X. Efficacy of pp65-specific TCR-T cell therapy in treating cytomegalovirus infection after hematopoietic stem cell transplantation. Am J Hematol 2022; 97:1453-1463. [PMID: 36054234 DOI: 10.1002/ajh.26708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/15/2022] [Accepted: 08/21/2022] [Indexed: 01/28/2023]
Abstract
Cytomegalovirus (CMV) infection remains a major cause of mortality after hematopoietic stem cell transplantation (HSCT). Current treatments, including antiviral drugs and adoptive cell therapy with CMV-specific cytotoxic T lymphocytes (CTLs), only show limited benefits in patients. T-cell receptor (TCR)-T cell therapy offers a promising option to treat CMV infections. Here, using tetramer-based screening and single-cell TCR cloning technologies, we identified various CMV antigen-specific TCRs from healthy donors, and generated TCR-T cells targeting multiple pp65 epitopes corresponding to three major HLA-A alleles. The TCR-T cells showed efficient cytotoxicity toward epitope-expressing target cells in vitro. After transfer into immune-deficient mice bearing pp65+ HLA+ tumor cells, TCR-T cells induced dramatic tumor regression and exhibited long-term persistence. In a phase I clinical trial (NCT04153279), CMV TCR-T cells were applied to treat patients with CMV reactivation after HSCT. Except one patient who withdrew at early treatment stage, all other six patients were well-tolerated and achieved complete response (CR), no more than grade 2 cytokine release syndrome (CRS) and other adverse events were observed. CMV TCR-T cells persisted up to 3 months. Among them, two patients have survived for more than 1 year. This study demonstrates the great potential in the treatment and prevention of CMV infection following HSCT or other organ transplantation.
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Affiliation(s)
- Guangna Liu
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,School of Biomedical Sciences, Hunan University, Changsha, China
| | - Hua Chen
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,BriStar Immunotech Co, Beijing, China
| | - Xingyu Cao
- Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Lemei Jia
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Wei Rui
- BriStar Immunotech Co, Beijing, China
| | | | - Daosheng Huang
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Fang Liu
- BriStar Immunotech Co, Beijing, China
| | - Yue Liu
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Xueqiang Zhao
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,BriStar Immunotech Co, Beijing, China
| | - Peihua Lu
- Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Xin Lin
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
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2
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Wang H, Wang T, Rui W, Xie J, Xie Y, Zhang X, Guan L, Li G, Lei Z, Schiffelers RM, Sluijter JPG, Xiao J. Extracellular vesicles enclosed-miR-421 suppresses air pollution (PM 2.5 )-induced cardiac dysfunction via ACE2 signalling. J Extracell Vesicles 2022; 11:e12222. [PMID: 35536587 PMCID: PMC9089227 DOI: 10.1002/jev2.12222] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 10/14/2021] [Revised: 04/03/2022] [Accepted: 04/15/2022] [Indexed: 01/05/2023] Open
Abstract
Air pollution, via ambient PM2.5, is a big threat to public health since it associates with increased hospitalisation, incidence rate and mortality of cardiopulmonary injury. However, the potential mediators of pulmonary injury in PM2.5‐induced cardiovascular disorder are not fully understood. To investigate a potential cross talk between lung and heart upon PM2.5 exposure, intratracheal instillation in vivo, organ culture ex vivo and human bronchial epithelial cells (Beas‐2B) culture in vitro experiments were performed respectively. The exposed supernatants of Beas‐2B were collected to treat primary neonatal rat cardiomyocytes (NRCMs). Upon intratracheal instillation, subacute PM2.5 exposure caused cardiac dysfunction, which was time‐dependent secondary to lung injury in mice, thereby demonstrating a cross‐talk between lungs and heart potentially mediated via small extracellular vesicles (sEV). We isolated sEV from PM2.5‐exposed mice serum and Beas‐2B supernatants to analyse the change of sEV subpopulations in response to PM2.5. Single particle interferometric reflectance imaging sensing analysis (SP‐IRIS) demonstrated that PM2.5 increased CD63/CD81/CD9 positive particles. Our results indicated that respiratory system‐derived sEV containing miR‐421 contributed to cardiac dysfunction post‐PM2.5 exposure. Inhibition of miR‐421 by AAV9‐miR421‐sponge could significantly reverse PM2.5‐induced cardiac dysfunction in mice. We identified that cardiac angiotensin converting enzyme 2 (ACE2) was a downstream target of sEV‐miR421, and induced myocardial cell apoptosis and cardiac dysfunction. In addition, we observed that GW4869 (an inhibitor of sEV release) or diminazene aceturate (DIZE, an activator of ACE2) treatment could attenuate PM2.5‐induced cardiac dysfunction in vivo. Taken together, our results suggest that PM2.5 exposure promotes sEV‐linked miR421 release after lung injury and hereby contributes to PM2.5‐induced cardiac dysfunction via suppressing ACE2.
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Affiliation(s)
- Hongyun Wang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
| | - Tianhui Wang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
| | - Wei Rui
- Institute for Immunology, Tsinghua University, Beijing, China
| | - Jinxin Xie
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
| | - Yuling Xie
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
| | - Xiao Zhang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
| | - Longfei Guan
- China-America Institute Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Guoping Li
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Zhiyong Lei
- CDL Research, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Cardiology, Laboratory of Experimental Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.,UMC Utrecht Regenerative Medicine Center, University Medical Center, Utrecht University, Utrecht, The Netherlands
| | | | - Joost P G Sluijter
- Department of Cardiology, Laboratory of Experimental Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.,UMC Utrecht Regenerative Medicine Center, University Medical Center, Utrecht University, Utrecht, The Netherlands
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, China
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3
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Wang J, Zhang X, Zhou Z, Liu Y, Yu L, Jia L, Yang J, Li J, Yu H, Li W, Liu G, Rui W, Zheng H, Zhao X, Lin X, Lu P. A novel adoptive synthetic TCR and antigen receptor (STAR) T-Cell therapy for B-Cell acute lymphoblastic leukemia. Am J Hematol 2022; 97:992-1004. [PMID: 35491511 DOI: 10.1002/ajh.26586] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/11/2022] [Accepted: 04/26/2022] [Indexed: 01/24/2023]
Abstract
We developed a T-cell-receptor (TCR) complex-based chimeric antigen receptor (CAR) named Synthetic TCR and Antigen Receptor (STAR). Here, we report pre-clinical and phase I clinical trial data (NCT03953599) of this T-cell therapy for refractory and relapsed (R/R) B-cell acute lymphoblastic leukemia (B-ALL) patients. STAR consists of two protein modules each containing an antibody light or heavy chain variable region and TCR α or β chain constant region fused to the co-stimulatory domain of OX40. T-cells were transduced with a STAR-OX40 lentiviral vector. A leukemia xenograft mouse model was used to assess the STAR/STAR-OX40 T cell antitumor activity. Eighteen patients with R/R B-ALL were enrolled into the clinical trial. In a xenograft mouse model, STAR-T-cells exhibited superior tumor-specific cytotoxicity compared with conventional CAR-T cells. Incorporating OX40 into STAR further improved the proliferation and persistence of tumor-targeting T-cells. In our clinical trial, 100% of patients achieved complete remission 4 weeks post-STAR-OX40 T-cell infusion and 16/18 (88.9%) patients pursued consolidative allogeneic hematopoietic stem cell transplantation (allo-HSCT). Twelve of 16 patients (75%) remained leukemia-free after a median follow-up of 545 (433-665) days. The two patients without consolidative allo-HSCT relapsed on Day 58 and Day 186. Mild cytokine release syndrome occurred in 10/18 (55.6%) patients, and 2 patients experienced grade III neurotoxicity. Our preclinical studies demonstrate super anti-tumor potency of STAR-OX40 T-cells compared with conventional CAR-T cells. The first-in-human clinical trial shows that STAR-OX40 T-cells are tolerable and an effective therapeutic platform for treating R/R B-ALL.
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Affiliation(s)
- Jiasheng Wang
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
- Tsinghua‐Peking Center for Life Sciences Beijing China
| | - Xian Zhang
- Hebei Yanda Lu Daopei Hospital Langfang China
- Lu Daopei Institute of Hematology Beijing China
| | - Zhixiao Zhou
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Yue Liu
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Li Yu
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Lemei Jia
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Junfang Yang
- Hebei Yanda Lu Daopei Hospital Langfang China
- Lu Daopei Institute of Hematology Beijing China
| | - Jingjing Li
- Hebei Yanda Lu Daopei Hospital Langfang China
- Lu Daopei Institute of Hematology Beijing China
| | - Hanyang Yu
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Wenzhong Li
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Guangna Liu
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
| | - Wei Rui
- China Immunotech Biotechnology Co. Ltd. Beijing China
| | - Hongli Zheng
- China Immunotech Biotechnology Co. Ltd. Beijing China
| | - Xueqiang Zhao
- China Immunotech Biotechnology Co. Ltd. Beijing China
| | - Xin Lin
- Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China
- Tsinghua‐Peking Center for Life Sciences Beijing China
| | - Peihua Lu
- Hebei Yanda Lu Daopei Hospital Langfang China
- Lu Daopei Institute of Hematology Beijing China
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4
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Liu Y, Liu G, Wang J, Zheng ZY, Jia L, Rui W, Huang D, Zhou ZX, Zhou L, Wu X, Lin S, Zhao X, Lin X. Chimeric STAR receptors using TCR machinery mediate robust responses against solid tumors. Sci Transl Med 2021; 13:13/586/eabb5191. [PMID: 33762437 DOI: 10.1126/scitranslmed.abb5191] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 08/03/2020] [Accepted: 01/27/2021] [Indexed: 12/14/2022]
Abstract
Chimeric antigen receptor T (CAR-T) cell therapies have demonstrated high response rate and durable disease control for the treatment of B cell malignancies. However, in the case of solid tumors, CAR-T cells have shown limited efficacy, which is partially attributed to intrinsic defects in CAR signaling. Here, we construct a double-chain chimeric receptor, termed as synthetic T cell receptor (TCR) and antigen receptor (STAR), which incorporates antigen-recognition domain of antibody and constant regions of TCR that engage endogenous CD3 signaling machinery. Under antigen-free conditions, STAR does not trigger tonic signaling, which has been reported to cause exhaustion of traditional CAR-T cells. Upon antigen stimulation, STAR mediates strong and sensitive TCR-like signaling, and STAR-T cells exhibit less susceptibility to dysfunction and better proliferation than traditional 28zCAR-T cells. In addition, STAR-T cells show higher antigen sensitivity than CAR-T cells, which holds potential to reduce the risk of antigen loss-induced tumor relapse in clinical use. In multiple solid tumor models, STAR-T cells prominently outperformed BBzCAR-T cells and generated better or equipotent antitumor effects to 28zCAR-T cells without causing notable toxicity. With these favorable features endowed by native TCR-like signaling, STAR-T cells may provide clinical benefit in treating refractory solid tumors.
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Affiliation(s)
- Yue Liu
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China.,Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Guangna Liu
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Jiasheng Wang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China.,Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Zhe-Yu Zheng
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lemei Jia
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Wei Rui
- China Immunotech (Beijing) Biotechnology Co., Ltd, Beijing 102206, China
| | - Daosheng Huang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Zhi-Xiao Zhou
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China.,Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Liqun Zhou
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Xin Wu
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Song Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Xueqiang Zhao
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Xin Lin
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China. .,Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
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5
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Zhang J, Rui W, Ma C, Cheng Y, Liu X, Christensen J. Remote whispering metamaterial for non-radiative transceiving of ultra-weak sound. Nat Commun 2021; 12:3670. [PMID: 34135332 PMCID: PMC8208968 DOI: 10.1038/s41467-021-23991-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 05/28/2021] [Indexed: 12/02/2022] Open
Abstract
Transceiving ultra-weak sound typically relies on signal pre-amplification at the transmitting end via active electro-acoustic devices, which inherently perturbs the environment in the form of noise that inevitably leads to information leakage. Here we demonstrate a passive remote-whispering metamaterial (RWM) enabling weak airborne sound at audible frequencies to reach unprecedented signal enhancement without altering the detected ambient soundscape, which is based on the extraordinary scattering properties of a metamaterial formed by a pair of self-resonating subwavelength Mie meta-cavities, constituting the acoustic analogy of Förster resonance energy transfer. We demonstrate efficient non-radiative sound transfer over distances hundreds times longer than the radius of the meta-cavities, which enables the RWM to recover weak sound signals completely overwhelmed by strong noise with enhanced signal-to-noise ratio from -3 dB below the detection limit of 0 dB in free space to 17.7 dB.
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Affiliation(s)
- Jin Zhang
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
| | - Wei Rui
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
| | - Chengrong Ma
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
| | - Ying Cheng
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China.
| | - Xiaojun Liu
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China.
| | - Johan Christensen
- Department of Physics, Universidad Carlos III de Madrid, Leganés, Madrid, Spain.
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6
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Rui W, Tao C, Liu X. Multiple information extracted from photoacoustic radio-frequency signal and the application on tissue classification. Ultrason Sonochem 2020; 66:105095. [PMID: 32247234 DOI: 10.1016/j.ultsonch.2020.105095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/15/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Photoacoustic imaging is a hybrid biomedical imaging technique, combining rich optical contrasts and good acoustic resolution in deep tissues. As a noninvasive and nonionized imaging method, photoacoustic imaging has shown great potentials in biomedicine in the past decade. In this review, we give a brief introduction of the physical principle and three major implementations of photoacoustic imaging. Then, we present pictures of some recent progress about the extraction of new imaging parameters from photoacoustic radio-frequency signals. These parameters are highly associated with the tissue microstructure characteristics, including characteristic size, number density, and elasticity. This information could give us insight into various properties of tissue in-depth and be applied to tissue classification for basic research and clinical settings.
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Affiliation(s)
- Wei Rui
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China; Shenzhen Research Institute of Nanjing University, Shenzhen 51800, China
| | - Chao Tao
- Shenzhen Research Institute of Nanjing University, Shenzhen 51800, China.
| | - Xiaojun Liu
- Key Laboratory of Modern Acoustics, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
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7
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Liu G, Rui W, Zheng H, Huang D, Yu F, Zhang Y, Dong J, Zhao X, Lin X. CXCR2-modified CAR-T cells have enhanced trafficking ability that improves treatment of hepatocellular carcinoma. Eur J Immunol 2020; 50:712-724. [PMID: 31981231 DOI: 10.1002/eji.201948457] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [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: 10/30/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 12/20/2022]
Abstract
Unlike hematological malignancies, solid tumors have proved to be less susceptible to chimeric antigen receptor (CAR)-T cell therapy, which is partially caused by reduced accumulation of therapeutic T cells in tumor site. Since efficient trafficking is the precondition and pivotal step for infused CAR-T cells to exhibit their anti-tumor function, strategies are highly needed to improve the trafficking ability of CAR-T cells for solid tumor treatment. Here, based on natural lymphocyte chemotaxis theory and characteristics of solid tumor microenvironments, we explored the possibility of enhancing CAR-T cell trafficking by using chemokine receptors. Our study found that compared with other chemokines, several CXCR2 ligands showed relatively high expression level in human hepatocellular carcinoma tumor tissues and cell lines. However, both human peripheral T cells and hepatocellular carcinoma tumor infiltrating T cells lacked expression of CXCR2. CXCR2-expressing CAR-T cells exhibited identical cytotoxicity but displayed significantly increased migration ability in vitro. In a xenograft tumor model, we found that expressing CXCR2 in CAR-T cells could significantly accelerate in vivo trafficking and tumor-specific accumulation, and improve anti-tumor effect of these cells.
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Affiliation(s)
- Guangna Liu
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Wei Rui
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Hongli Zheng
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Daosheng Huang
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Fei Yu
- Center of Hepatopancreatobiliary Diseases, Beijing Tsinghua Changgung Hospital, Tsinghua University, School of Medicine, Beijing, China
| | - Yuewei Zhang
- Center of Hepatopancreatobiliary Diseases, Beijing Tsinghua Changgung Hospital, Tsinghua University, School of Medicine, Beijing, China
| | - Jiahong Dong
- Center of Hepatopancreatobiliary Diseases, Beijing Tsinghua Changgung Hospital, Tsinghua University, School of Medicine, Beijing, China
| | - Xueqiang Zhao
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Xin Lin
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,Tsinghua University-Peking University Jointed Center for Life Sciences, Beijing, China
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Rui W, Tao C, Liu X. Imaging acoustic sources through scattering media by using a correlation full-matrix filter. Sci Rep 2018; 8:15611. [PMID: 30353141 PMCID: PMC6199323 DOI: 10.1038/s41598-018-34039-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/05/2018] [Accepted: 10/10/2018] [Indexed: 12/25/2022] Open
Abstract
In the inhomogeneous medium, acoustic scattering is always a fundamental challenge for photoacoustic imaging. We implement a correlation full-matrix filter (CFMF) combing with a time reversal operator to improve the imaging quality of acoustic sources in complex media. The correlation full-matrix filtering process extracts the direct wave component from the detected signal and preserve all the useful information at the same time. A location factor is considered in the time reversal operator to compensate for the image distortion and false contrast caused by the limited-view detection. The numerical simulations demonstrate that the proposed approach can perform good imaging quality with the higher image signal-noise ratio and better resolution in an acoustic scattering environment. This scheme might be applied to improve the photoacoustic imaging for inhomogeneous biological tissues.
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Affiliation(s)
- Wei Rui
- Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Chao Tao
- Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China. .,Shenzhen Research Institute of Nanjing University, Shenzhen, 51800, China.
| | - Xiaojun Liu
- Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
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9
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Rui W, Tao C, Liu X. Photoacoustic imaging in scattering media by combining a correlation matrix filter with a time reversal operator. Opt Express 2017; 25:22840-22850. [PMID: 29041590 DOI: 10.1364/oe.25.022840] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
Acoustic scattering medium is a fundamental challenge for photoacoustic imaging. In this study, we reveal the different coherent properties of the scattering photoacoustic waves and the direct photoacoustic waves in a matrix form. Direct waves show a particular coherence on the antidiagonals of the matrix, whereas scattering waves do not. Based on this property, a correlation matrix filter combining with a time reversal operator is proposed to preserve the direct waves and recover the image behind a scattering layer. Both numerical simulations and photoacoustic imaging experiments demonstrate that the proposed approach effectively increases the image contrast and decreases the background speckles in a scattering medium. This study might improve the quality of photoacoustic imaging in an acoustic scattering environment and extend its applications.
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10
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Zhang Z, Rui W, Wang ZC, Liu DX, Du L. Anti-proliferation and anti-metastasis effect of barbaloin in non-small cell lung cancer via inactivating p38MAPK/Cdc25B/Hsp27 pathway. Oncol Rep 2017; 38:1172-1180. [PMID: 28656293 DOI: 10.3892/or.2017.5760] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 06/07/2017] [Indexed: 11/06/2022] Open
Abstract
Non-small cell lung carcinoma (NSCLC) is the most common lung cancer with high morbidity and mortality. The traditional treatment for NSCLC is particularly liable to relapse with many side-effects. Barbaloin is a natural compound with anticancer efficacy. The present study aimed to investigate the anticancer potential of barbaloin in NSCLC. The results displayed that barbaloin inhibited the viability of A549 cells by decreasing cell growth and the expression level of Ki-67 and proliferating cell nuclear antigen (PCNA), especially at high concentrations (50 and 100 µM). Besides, barbaloin increased the apoptosis rate of A549 cells and induced an accumulation of G2/M phase. Increased expression of apoptosis-related proteins (caspase-3, -8 and -9) and the changed levels of cell cycle checkpoint proteins (p27, p53 and cyclin A) further convinced of the anti-viability effect of barbaloin in A549 cells. On the other hand, barbaloin significantly suppressed the invasion and migration of A549 cells, and restrained the expression of tumor metastasis-related proteins. We further explored the activation of pro-survival or pro-metastasis signaling pathways, including AKT, nuclear factor kappa B (NF-κB), mitogen-actived protein kinase (MAPK) and β-catenin. The results revealed that barbaloin inactivated the p38MAPK/Cdc25B/Hsp27 pathway by inhibiting p38 nucleus translocation, while no significant influence was observed among other pathways. Finally, barbaloin restrained the growth and hepatic metastases of A549 cells in vivo. Taken together, our research indicated that barbaloin inhibited the proliferation and metastasis of NSCLC cells in vivo and in vitro. This may provide safer and more effective aspects for the treatment of NSCLC.
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Affiliation(s)
- Zhang Zhang
- Department of Acupuncture and Moxibustion, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Wei Rui
- Department of Supply, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Zi-Chen Wang
- Department of Acupuncture and Moxibustion, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Da-Xin Liu
- Department of Traditional Chinese Medicine, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Lin Du
- Department of Acupuncture and Moxibustion, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing 100700, P.R. China
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Jing Q, Jianyong L, Jiming Y, Shuren L, Rui W, Wei L. Predictive value of recurrence for serum hypoxia inducible factor-1α C-reaction protein in hepatocellular carcinoma patients after transcatheter arterial chemoembolization. Indian J Cancer 2016; 52 Suppl 2:e105-6. [PMID: 26728665 DOI: 10.4103/0019-509x.172504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the predictive value of recurrence for serum hypoxia inducible factor-1α (HIF-1α), C-reaction protein (CRP) in hepatocellular carcinoma patients after transcatheter arterial chemoembolization (TACE). PATIENTS AND METHODS Fifty-eight hepatocellular carcinoma patients treated with TACE were included in this study from February 2010 to January 2013 as the case group. Of the included 58 cases, 47 patients had recurrence disease, and other 11 cases had no recurrence disease within 2 years follow-up. Moreover, 62 subjects with no benign liver disease were recruited as a control group in the same period. The serum level of HIF-1α and CRP were tested in case group and control group 1-week after TACE. The serum level of HIF-1α and CRP were compared among the recurrence, nonrecurrence, and benign liver disease patients. The predictive value of recurrence for serum HIF-1α, CRP was calculated by Bayes' theorem. RESULTS The serum HIF-1α and CRP level was arrayed 1-week after TACE. For recurrence cases, the serum level of HIF-1α and CRP was 2457.00 ± 335.70 pg/ml and 11.46 ± 3.25 mg/L. For nonrecurrence subjects, the serum level of HIF-1α and CRP was 2067.00 ± 175.900 pg/ml and 8.99 ± 1.70 mg/L. Moreover, for the benign liver disease patients, the serum level of HIF-1α and CRP was 1897.00 ± 121.33 pg/ml and 6.11 ± 1.2 mg/L. The serum level of HIF-1α and CRP was significantly higher in hepatocellular carcinoma patients than that of benign liver disease patients (P < 0.05); The recurrence predictive sensitivity and specificity of HIF-1α for hepatocellular carcinoma patients after TACE chemoembolization was 76.60% and 81.82% with the area under the curve (AUC) receiver operating characteristic (ROC) curve of 0.85; The recurrence predictive sensitivity and specificity of CRP for hepatocellular carcinoma patients after TACE was 65.96% and 63.64% with the AUC/ROC of 0.74. CONCLUSION The serum level of HIF-1α and CRP was elevated in recurrence patients which could be a potential marker for recurrence prediction.
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Affiliation(s)
| | | | | | | | | | - L Wei
- Tianjin Hepatopathy Research Institute, Tianjin Second People's Hospital, Tianjin 300192, PR, China
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Guan L, Rui W, Bai R, Zhang W, Zhang F, Ding W. Effects of Size-Fractionated Particulate Matter on Cellular Oxidant Radical Generation in Human Bronchial Epithelial BEAS-2B Cells. Int J Environ Res Public Health 2016; 13:ijerph13050483. [PMID: 27171105 PMCID: PMC4881108 DOI: 10.3390/ijerph13050483] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/19/2016] [Accepted: 04/26/2016] [Indexed: 01/09/2023]
Abstract
The aim of the present study was to investigate the effects of size-fractionated (i.e., <1; 1-2.5, and 2.5-10 µm in an aerodynamic diameter) ambient particulate matter (PM) on reactive oxygen species (ROS) activity and cell viability in human bronchial epithelial cells (BEAS-2B). The PM samples were collected from an urban site (uPM) in Beijing and a steel factory site (sPM) in Anshan, China, from March 2013 to December 2014. Metal elements, organic and elemental carbon, and water-soluble inorganic ions in the uPM and sPM were analyzed. The cell viability and ROS generation in PM-exposed BEAS-2B cells were measured by MTS and DCFH-DA. The results showed that both uPM and sPM caused a decrease in the cell viability and an increase in ROS generation. The level of ROS measured in sPM1.0 was approximately triple that in uPM1.0. The results of correlation analysis showed that the ROS activity and cytotoxicity were related to different PM composition. Moreover, deferoxamine (DFO) significantly prevented the increase of ROS generation and the decrease of cell viability. Taken together, our results suggest that the metals absorbed on PM induced oxidant radical generation in BEAS-2B cells that could lead to impairment of pulmonary function.
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Affiliation(s)
- Longfei Guan
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Wei Rui
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ru Bai
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Wei Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Fang Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Wenjun Ding
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
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Zhao Q, Chen H, Yang T, Rui W, Liu F, Zhang F, Zhao Y, Ding W. Direct effects of airborne PM2.5 exposure on macrophage polarizations. Biochim Biophys Acta Gen Subj 2016; 1860:2835-43. [PMID: 27041089 DOI: 10.1016/j.bbagen.2016.03.033] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [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: 12/24/2015] [Revised: 03/16/2016] [Accepted: 03/22/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Exposure of atmospheric particulate matter with an aerodynamic diameter less than 2.5μm (PM2.5) is epidemiologically associated with illnesses. Potential effects of air pollutants on innate immunity have raised concerns. As the first defense line, macrophages are able to induce inflammatory response. However, whether PM2.5 exposure affects macrophage polarizations remains unclear. METHODS We used freshly isolated macrophages as a model system to demonstrate effects of PM2.5 on macrophage polarizations. The expressions of cytokines and key molecular markers were detected by real-time PCR, and flow cytometry. The specific inhibitors and gene deletion technologies were used to address the molecular mechanisms. RESULTS PM2.5 increased the expression of pro-inflammatory cytokines granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-6 (IL-6), interleukin-1β (IL-1β), tumor necrosis factor alpha (TNFα). PM2.5 also enhanced the lipopolysaccharide (LPS)-induced M1 polarization even though there was no evidence in the change of cell viability. However, PM2.5 significantly decreased the number of mitochondria in a dose dependent manner. Pre-treatment with NAC, a scavenger of reactive oxygen species (ROS), prevented the increase of ROS and rescued the PM2.5-impacted M1 but not M2 response. However, mTOR deletion partially rescued the effects of PM2.5 to reduce M2 polarization. CONCLUSIONS PM2.5 exposure significantly enhanced inflammatory M1 polarization through ROS pathway, whereas PM2.5 exposure inhibited anti-inflammatory M2 polarization through mTOR-dependent pathway. GENERAL SIGNIFICANCE The present studies suggested that short-term exposure of PM2.5 acts on the balance of inflammatory M1 and anti-inflammatory M2 macrophage polarizations, which may be involved in air pollution-induced immune disorders and diseases. This article is part of a Special Issue entitled Air Pollution, edited by Wenjun Ding, Andrew J. Ghio and Weidong Wu.
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Affiliation(s)
- Qingjie Zhao
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hui Chen
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Tao Yang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Wei Rui
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fang Liu
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fang Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yong Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
| | - Wenjun Ding
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
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Rui W, Guan L, Zhang F, Zhang W, Ding W. PM2.5-induced oxidative stress increases adhesion molecules expression in human endothelial cells through the ERK/AKT/NF-κB-dependent pathway. J Appl Toxicol 2016; 36:48-59. [PMID: 25876056 DOI: 10.1002/jat.3143] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/04/2015] [Accepted: 02/04/2015] [Indexed: 01/05/2023]
Abstract
The aim of this study was to explore the intracellular mechanisms underlying the cardiovascular toxicity of air particulate matter (PM) with an aerodynamic diameter of less than 2.5 µm (PM2.5) in a human umbilical vein cell line, EA.hy926. We found that PM2.5 exposure triggered reactive oxygen species (ROS) generation, resulting in a significant decrease in cell viability. Data from Western blots showed that PM2.5 induced phosphorylation of Jun N-terminal kinase (JNK), extracellular signal regulatory kinase (ERK), p38 mitogen-activated protein kinase (MAPK) and protein kinase B (AKT), and activation of nuclear factor kappa B (NF-κB). We further observed a significant increase in expressions of intercellular adhesion molecule-1 (ICAM-1) and vascular adhesion molecule-1 (VCAM-1) in a time- and dose-dependent manner. Moreover, the adhesion of monocytic THP-1 cells to EA.hy926 cells was greatly enhanced in the presence of PM2.5 . However, N-acetylcysteine (NAC), a scavenger of ROS, prevented the increase of ROS generation, attenuated the phosphorylation of the above kinases, and decreased the NF-κB activation as well as the expression of ICAM-1 and VCAM-1. Furthermore, ERK inhibitor (U0126), AKT inhibitor (LY294002) and NF-κB inhibitor (BAY11-7082) significantly down-regulated PM2.5 -induced ICAM-1 and VCAM-1 expression as well as adhesion of THP-1 cells, but not JNK inhibitor (SP600125) and p38 MAPK inhibitor (SB203580), indicating that ERK/AKT/NF-κB is involved in the signaling pathway that leads to PM2.5 -induced ICAM-1 and VCAM-1 expression. These findings suggest PM2.5 -induced ROS may function as signaling molecules triggering ICAM-1 and VCAM-1 expressions through activating the ERK/AKT/NF-κB-dependent pathway, and further promoting monocyte adhesion to endothelial cells.
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Affiliation(s)
- Wei Rui
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Longfei Guan
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Fang Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Wei Zhang
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Wenjun Ding
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
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Yang S, Wu X, Rui W, Guo J, Feng Y. UPLC/Q-TOF-MS Analysis for Identification of Hydrophilic Phenolics and Lipophilic Diterpenoids from Radix Salviae Miltiorrhizae. ACTA CHROMATOGR 2015. [DOI: 10.1556/achrom.27.2015.4.9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Liu F, Huang Y, Zhang F, Chen Q, Wu B, Rui W, Zheng JC, Ding W. Macrophages treated with particulate matter PM2.5 induce selective neurotoxicity through glutaminase-mediated glutamate generation. J Neurochem 2015; 134:315-26. [PMID: 25913161 DOI: 10.1111/jnc.13135] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 03/29/2015] [Accepted: 03/30/2015] [Indexed: 12/12/2022]
Abstract
Exposure to atmospheric particulate matter PM2.5 (aerodynamic diameter ≤ 2.5 μm) has been epidemiologically associated with respiratory illnesses. However, recent data have suggested that PM2.5 is able to infiltrate into circulation and elicit a systemic inflammatory response. Potential adverse effects of air pollutants to the central nervous system (CNS) have raised concerns, but whether PM2.5 causes neurotoxicity remains unclear. In this study, we have demonstrated that PM2.5 impairs the tight junction of endothelial cells and increases permeability and monocyte transmigration across endothelial monolayer in vitro, indicating that PM2.5 is able to disrupt blood-brain barrier integrity and gain access to the CNS. Exposure of primary neuronal cultures to PM2.5 resulted in decrease in cell viability and loss of neuronal antigens. Furthermore, supernatants collected from PM2.5 -treated macrophages and microglia were also neurotoxic. These macrophages and microglia significantly increased extracellular levels of glutamate following PM2.5 exposure, which were negatively correlated with neuronal viability. Pre-treatment with NMDA receptor antagonist MK801 alleviated neuron loss, suggesting that PM2.5 neurotoxicity is mediated by glutamate. To determine the potential source of excess glutamate production, we investigated glutaminase, the main enzyme for glutamate generation. Glutaminase was reduced in PM2.5 -treated macrophages and increased in extracellular vesicles, suggesting that PM2.5 induces glutaminase release through extracellular vesicles. In conclusion, these findings indicate PM2.5 as a potential neurotoxic factor, crucial to understanding the effects of air pollution on the CNS.
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Affiliation(s)
- Fang Liu
- Laboratory of Environment and Health, University of Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yunlong Huang
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Laboratory of Neuroimmunology and Regenerative Therapy, Departments of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Fang Zhang
- Laboratory of Environment and Health, University of Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Qiang Chen
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Laboratory of Neuroimmunology and Regenerative Therapy, Departments of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Beiqing Wu
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Laboratory of Neuroimmunology and Regenerative Therapy, Departments of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Wei Rui
- Laboratory of Environment and Health, University of Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jialin C Zheng
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Laboratory of Neuroimmunology and Regenerative Therapy, Departments of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA.,Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Wenjun Ding
- Laboratory of Environment and Health, University of Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
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Deng X, Zhang F, Wang L, Rui W, Long F, Zhao Y, Chen D, Ding W. Airborne fine particulate matter induces multiple cell death pathways in human lung epithelial cells. Apoptosis 2015; 19:1099-112. [PMID: 24722831 DOI: 10.1007/s10495-014-0980-5] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Our group was the first one reporting that autophagy could be triggered by airborne fine particulate matter (PM) with a mean diameter of less than 2.5 μm (PM2.5) in human lung epithelial A549 cells, which could potentially lead to cell death. In the present study, we further explored the potential interactions between autophagy and apoptosis because it was well documented that PM2.5 could induce apoptosis in A549 cells. Much to our surprise, we found that PM2.5-exposure caused oxidative stress, resulting in activation of multiple cell death pathways in A549 cells, that is, the tumor necrosis factor-alpha (TNF-α)-induced pathway as evidenced by TNF-α secretion and activation of caspase-8 and -3, the intrinsic apoptosis pathway as evidenced by increased expression of pro-apoptotic protein Bax, decreased expression of anti-apoptotic protein Bcl-2, disruption of mitochondrial membrane potential, and activation of caspase-9 and -3, and autophagy as evidenced by an increased number of double-membrane vesicles, accompanied by increases of conversion and punctuation of microtubule-associated proteins light chain 3 (LC3) and expression of Beclin 1. It appears that reactive oxygen species (ROS) function as signaling molecules for all the three pathways because pretreatment with N-acetylcysteine, a scavenger of ROS, almost completely abolished TNF-α secretion and significantly reduced the number of apoptotic and autophagic cells. In another aspect, inhibiting autophagy with 3-methyladenine, a specific autophagy inhibitor, enhanced PM2.5-induced apoptosis and cytotoxicity. Intriguingly, neutralization of TNF-α with an anti-TNF-α special antibody not only abolished activation of caspase-8, but also drastically reduced LC3-II conversion. Thus, the present study has provided novel insights into the mechanism of cytotoxicity and even pathogenesis of diseases associated with PM2.5 exposure.
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Affiliation(s)
- Xiaobei Deng
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People's Republic of China
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Zhu Y, Xu Y, Chen D, Zhang C, Rui W, Zhao J, Zhu Q, Wu Y, Shen Z, Wang W, Ning G, Wang X. Expression of STAT3 and IGF2 in adrenocortical carcinoma and its relationship with angiogenesis. Clin Transl Oncol 2013; 16:644-9. [PMID: 24178245 DOI: 10.1007/s12094-013-1130-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 10/22/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to determine the correlation between human adrenocortical carcinoma and the proteins involved in tumor angiogenesis, and to evaluate the angiogenic status of adrenocortical carcinoma. METHODS The expression of signal transducer and activator of transcription 3 and insulin-like growth factor 2 as well as microvessel density was measured in a series of tissue samples from 44 human sporadic adrenocortical tumors by immunohistochemistry. These specimens were classified as adenomas (n = 20) and carcinomas (n = 24) according to the histological criteria defined by Weiss. RESULTS A total of 19 of 24 (79.17 %) malignant cases showed positive staining for signal transducer and activator of transcription 3 and 4 of 20 (20.00 %) benign cases showed positive, the difference of signal transducer and activator of transcription 3 expression between adrenocortical adenomas and adrenocortical carcinomas was statistically significant (P < 0.001). Similarly, insulin-like growth factor 2 staining was seen in 70.83 % (17/24) of the malignant cases versus 25.00 % (5/20) of the benign, the difference of insulin-like growth factor 2 expression among two groups was statistically significant (P = 0.002). Malignant cases showed higher microvessel density compared to benign tumors (84.70 ± 12.44 vs 21.05 ± 8.07, P < 0.001). Signal transducer and activator of transcription 3 and insulin-like growth factor 2 expression were positively correlated with microvessel density in all specimens (r_s = 0.832, P < 0.001; r_s = 0.703, P = 0.001). CONCLUSIONS This study has confirmed that adrenocortical carcinoma overexpress signal transducer and activator of transcription 3 and insulin-like growth factor 2; these results suggest that angiogenesis of human adrenocortical carcinoma may be mediated by these proteins and they could represent selective targets for the molecularly targeted treatments of adrenocortical carcinoma.
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Affiliation(s)
- Y Zhu
- Department of Urology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, No.197, Ruijin Er Road, Shanghai, 200025, China
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Deng X, Zhang F, Rui W, Long F, Wang L, Feng Z, Chen D, Ding W. PM2.5-induced oxidative stress triggers autophagy in human lung epithelial A549 cells. Toxicol In Vitro 2013; 27:1762-70. [PMID: 23685237 DOI: 10.1016/j.tiv.2013.05.004] [Citation(s) in RCA: 278] [Impact Index Per Article: 25.3] [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: 11/22/2012] [Revised: 03/28/2013] [Accepted: 05/07/2013] [Indexed: 11/29/2022]
Abstract
Exposure to higher levels of air pollution particulate matter (PM) with an aerodynamic diameter of less than 2.5 μm (PM2.5) links with an increased risk of cardiovascular and respiratory deaths and hospital admission as well as lung cancer. Although the mechanism underlying the correlation between PM2.5 exposure and adverse effects has not fully elucidated, PM2.5-induced oxidative stress has been considered as an important molecular mechanism of PM2.5-mediated toxicity. In this work, human lung epithelial A549 cells were used to further investigate the biological effects of PM2.5 on autophagy. The cell viability showed both time- and concentration-dependent decrease when exposure to PM2.5, which can be attributed to increase of the levels of extracellular lactate dehydrogenase (LDH) release and intracellular reactive oxygen species (ROS) generation in A549 cells. Moreover, PM2.5-induced oxidative damage in A549 cells was observed through the alteration of superoxide dismutase (SOD) and catalase (CAT) activities compared to the unexposed control cells. PM2.5-induced autophagy was indicated by an increase in microtubule-associated protein light chain-3 (LC3) puncta, and accumulation of LC3 in both time- and concentration-dependent manner. PM2.5-induced mRNA expression of autophagy-related protein Atg5 and Beclin1 was also observed compared with those of the unexposed control cells. These results suggest the possibility that PM2.5-induced oxidative stress probably plays a key role in autophagy in A549 cells, which may contribute to PM2.5-induced impairment of pulmonary function.
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Affiliation(s)
- Xiaobei Deng
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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Deng X, Rui W, Zhang F, Ding W. PM2.5 induces Nrf2-mediated defense mechanisms against oxidative stress by activating PIK3/AKT signaling pathway in human lung alveolar epithelial A549 cells. Cell Biol Toxicol 2013; 29:143-57. [PMID: 23525690 DOI: 10.1007/s10565-013-9242-5] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 02/25/2013] [Indexed: 11/27/2022]
Abstract
It has been well documented in in vitro studies that ambient airborne particulate matter (PM) with an aerodynamic diameter less than 2.5 μm (PM(2.5)) is capable of inducing oxidative stress, which plays a key role in PM(2.5)-mediated cytotoxicity. Although nuclear factor erythroid-2-related factor 2 (Nrf2) has been shown to regulate the intracellular defense mechanisms against oxidative stress, a potential of the Nrf2-mediated cellular defense against oxidative stress induced by PM(2.5) remains to be determined. This study was aimed to explore the potential signaling pathway of Nrf2-mediated defense mechanisms against PM(2.5)-induced oxidative stress in human type II alveolar epithelial A549 cells. We exposed A549 cells to PM(2.5) particles collected from Beijing at a concentration of 16 μg/cm(2). We observed that PM(2.5) triggered an increase of intracellular reactive oxygen species (ROS) in a time-dependent manner during a period of 2 h exposure. We also found that Nrf2 overexpression suppressed and Nrf2 knockdown increased PM(2.5)-induced ROS generation. Using Western blot and confocal microscopy, we found that PM(2.5) exposure triggered significant translocation of Nrf2 into nucleus, resulting in AKT phosphorylation and significant transcription of ARE-driven phases II enzyme genes, such as NAD(P)H:quinone oxidoreductase (NQO-1), heme oxygenase-1 (HO-1), and glutamate-cysteine ligase catalytic subunit (GCLC) in A549 cells. Evaluation of signaling pathways showed that a phosphatidylinositol 3-kinase (PI3K) inhibitor (LY294002), but not an ERK 1/2 inhibitor (PD98059) or a p38 MAPK (SB203580), significantly down-regulated PM(2.5)-induced Nrf2 nuclear translocation and HO-1 mRNA expression, indicating PI3K/AKT is involved in the signaling pathway leads to the PM(2.5)-induced nuclear translocation of Nrf2 and subsequent Nrf2-mediated HO-1 transcription. Taken together, our results suggest that PM(2.5)-induced ROS may function as signaling molecules to activate Nrf2-mediated defenses, such as HO-1 expression, against oxidative stress induced by PM(2.5) through the PI3K/AKT signaling pathway.
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Affiliation(s)
- Xiaobei Deng
- Laboratory of Environment and Health, College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
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Shen Z, Wang X, Zhu Y, Zhang R, Sun F, Shao Y, Rui W, He W, Dai J. UP-1.016: Retroperitoneoscopic Partial Adrenalectomy for Aldosteronoma: Clinical Experiences with 163 Cases. Urology 2009. [DOI: 10.1016/j.urology.2009.07.463] [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: 10/20/2022]
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Shao Y, Shen Z, Rui W, Zhou W. UP-2.198: Intravesical Hyaluronic Acid Instillation Prolonged the Effect of Bladder Hydrodistension in Severe Interstitial Cystitis Patients. Urology 2009. [DOI: 10.1016/j.urology.2009.07.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Shen Z, Wang X, Zhu Y, Zhang R, Sun F, Shao Y, Rui W, He W, Dai J. VID-03.02: Retroperitoneoscopic Partial Adrenalectomy for Small Adrenal Tumors (≤1cm): The Rui-jin Clinical Experience in 96 Procedures. Urology 2009. [DOI: 10.1016/j.urology.2009.07.717] [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: 11/30/2022]
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Liu A, Chen Y, Yang Z, Feng Y, Rui W, Luo W, Liu Y, Gonzalez FJ, Dai R. New metabolites of fenofibrate in Sprague-Dawley rats by UPLC-ESI-QTOF-MS-based metabolomics coupled with LC-MS/MS. Xenobiotica 2009; 39:345-54. [PMID: 19350456 DOI: 10.1080/00498250802680827] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Fenofibrate has been widely used for the treatment of dyslipidaemia with a long history. Species differences of its metabolism were reported, but its metabolites in rodent have not been fully investigated. Urine and plasma samples were collected before and after oral dosages of fenofibrate in Sprague-Dawley rats. Urine samples were subjected to ultra-performance liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC-ESI-QTOF-MS) analysis, and projection to latent structures discriminant analysis was used for the identification of metabolites. New metabolites in urine and plasma were also studied by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The metabolism pathway was studied in rat hepatocytes. Synthesized and purchased authentic compounds were used for metabolite identification by LC-MS/MS. Five ever-reported metabolites were identified and another four new ones were found. Among these new metabolites, fenofibric acid taurine and reduced fenofibric acid taurine indicate new phase II conjugation pathway of fenofibrate.
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Affiliation(s)
- A Liu
- Chinese Academy of Sciences, Guangzhou Institute of Biomedicine and Health, Guangzhou, China
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Zhang Q, Lu M, Shi L, Rui W, Zhu X, Chen G, Shang T, Tang J. Cardio: a web-based knowledge resource of genes and proteins related to cardiovascular disease. Int J Cardiol 2004; 97:245-9. [PMID: 15458691 DOI: 10.1016/j.ijcard.2003.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2003] [Accepted: 09/10/2003] [Indexed: 10/26/2022]
Abstract
BACKGROUND Cardiovascular disease (CVD) is the leading killer for human. In order to understand the linkage between cardiovascular diseases and genes or proteins, it is essential to construct a database to organize the body of knowledge. While the existing molecular biological databases focus on the sequence and structural aspects of biological macromolecules, i.e. DNAs, RNAs and proteins, Cardio is the web-based system we built to provide a knowledge environment with visual interface to integrate information about major cardiovascular diseases in relation to genes and proteins. METHODS We collected the information from the web by using a group of software we developed and used a relational database management system to manage the information of these data. RESULTS Cardio consists of six sections: GENE, PROTEIN, DISEASE, DRUG, LINKS, and REFERENCE. Each section contains relevant information about the topic. Using a phenotype-driven approach, we can identify genetic mechanisms underlying the physiology and pathophysiology of specific cardiovascular disease, such as atherosclerosis, hypertension, heart failure, and stroke. CONCLUSION The website titled "Database of Genes and Proteins Related to Cardiovascular Disease (Cardio)" is available at along with additional information on cardiovascular disease, supplementary materials and related figures.
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Affiliation(s)
- Qipeng Zhang
- Institute of Cardiovascular Sciences, Peking University, Beijing, China.
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Shi L, Zhang Q, Rui W, Lu M, Jing X, Shang T, Tang J. BioPD: a web-based information center for bioactive peptides. ACTA ACUST UNITED AC 2004; 120:1-3. [PMID: 15177914 DOI: 10.1016/j.regpep.2004.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2004] [Revised: 02/14/2004] [Accepted: 03/09/2004] [Indexed: 11/29/2022]
Abstract
Bioactive peptide database (BioPD) is a web-based knowledge base that contains more than 1100 protein sequences from human, mouse and rat, which are putative or are known to be bioactive peptides. In addition to peptide sequences and the annotation, the database also contains gene sequences with annotation, protein interaction and disease data related to the peptides. Each entry has as many references as possible to support the information represented. BioPD consists of six parts: PROTEIN, GENE, DISEASE, LINKS, INTERACTION, and REFERENCE. The database is searchable through keyword, gene and protein name, receptor name, etc. The links to PDB, InterPro, Pfam, OMIM, etc. are provided in each entry. Thus BioPD is formed as an information center for the bioactive peptide and serves as a gateway for exploration of bioactive peptides. The database can be accessed at http://biopd.bjmu.edu.cn.
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Affiliation(s)
- Lei Shi
- Institute of Cardiovascular Science, Peking University Health Science Center, Xueyuan Road 38, Beijing 100083, PR China.
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Jing X, Zhang QP, Guo QH, Lu M, Zhu XH, Shi L, Rui W, Shang T. [Construction of directory for biomedical databases on INTERNET]. Beijing Da Xue Xue Bao Yi Xue Ban 2004; 36:322-6. [PMID: 15205710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To construct a global directory of biomedical databases(DBD), which can be used free of charge on INTERNET. It will be convenient for researchers to find out related databases quickly, easily and accurately by using DBD since there are not enough useful tools for database retrieval. Biomedical databases will be an accelerator in development of biomedicine with the help of DBD. METHODS PubMed and Google were main tools for searching related databases. Proper search strategy with rigorous indexing rules helped us to filter databases. The database management system was Microsoft SQL-Server 2000. The web pages of DBD were designed with Macromedia Dreamwaver MX. ASP (active server pages) technology was used to deal with the key words and scores sent by users. RESULTS There were 66 subjects and 1 258 databases in DBD at this time. We released the Chinese and English versions of DBD on the INTERNET at the same time http://cmbi.bjmu.edu.cn/DBList/index.htm http://cmbi.bjmu.edu.cn/DBList/index_en.htm . Score system was also established to evaluate the content of the indexed databases. Users can search DBD by subjects key words and alphabetic databases' names easily. CONCLUSION DBD has laid the primary foundation for further core biomedical database evaluation system. DBD, as a useful tool for biomedical database retrieval, will be of great aid to users since databases have played a more and more important role in the biomedical research.
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Affiliation(s)
- Xia Jing
- Biomedical Informatics Laboratory, Peking University Institute of Cardiovascular Sciences, Beijing 100083, China.
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DeClue JE, Heffelfinger S, Benvenuto G, Ling B, Li S, Rui W, Vass WC, Viskochil D, Ratner N. Epidermal growth factor receptor expression in neurofibromatosis type 1-related tumors and NF1 animal models. J Clin Invest 2000; 105:1233-41. [PMID: 10791998 PMCID: PMC315438 DOI: 10.1172/jci7610] [Citation(s) in RCA: 140] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We have found that EGF-R expression is associated with the development of the Schwann cell-derived tumors characteristic of neurofibromatosis type 1 (NF1) and in animal models of this disease. This is surprising, because Schwann cells normally lack EGF-R and respond to ligands other than EGF. Nevertheless, immunoblotting, Northern analysis, and immunohistochemistry revealed that each of 3 malignant peripheral nerve sheath tumor (MPNST) cell lines from NF1 patients expressed the EGF-R, as did 7 of 7 other primary MPNSTs, a non-NF1 MPNST cell line, and the S100(+) cells from each of 9 benign neurofibromas. Furthermore, transformed derivatives of Schwann cells from NF1(-/-) mouse embryos also expressed the EGF-R. All of the cells or cell lines expressing EGF-R responded to EGF by activation of downstream signaling pathways. Thus, EGF-R expression may play an important role in NF1 tumorigenesis and Schwann cell transformation. Consistent with this hypothesis, growth of NF1 MPNST lines and the transformed NF1(-/-) mouse embryo Schwann cells was greatly stimulated by EGF in vitro and could be blocked by agents that antagonize EGF-R function.
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Affiliation(s)
- J E DeClue
- Laboratory of Cellular Oncology, National Cancer Institute, Bethesda, Maryland 20892, USA.
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Ono S, Fukunaga M, Morita K, Otsuka N, Nagai K, Rui W, Furukawa T, Muranaka A, Yanagimoto S, Tomomitsu T. [Single photon emission computed tomograph using 99mTc-hexamethyl-propyleneamine oxime in spinocerebellar degeneration]. Kaku Igaku 1988; 25:243-53. [PMID: 3135426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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