1
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Ye W, Lv H, Zhang Q, Zhao J, Zhao X, Zhao G, Yan C, Sun F, Zhao Z, Jia X. A cisplatin and disulphiram co-loaded inclusion complex overcomes drug resistance by inhibiting cancer cell stemness in non-small cell lung cancer. J Drug Target 2024; 32:159-171. [PMID: 38133515 DOI: 10.1080/1061186x.2023.2298844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Introduction: Non-small cell lung cancer (NSCLC) accounting for about 80-85% of all lung cancer cases is one of the fastest-growing malignancies in terms of incidence and mortality worldwide and is commonly treated with cisplatin (DDP). Although treatment may initially be effective, the DDP therapy often leads to the development of chemoresistance and treatment failure. Disulphiram (DSF), an old alcohol-aversion drug, has been revealed to help reverse drug resistance in several cancers. In addition, several studies have shown a close relationship between drug resistance and cancer cell stemness.Methods: In this study, DDP and DSF were embedded in hydroxypropyl-β-cyclodextrin (CD) to prepare a co-loaded inclusion complex of DDP and DSF (DDP-DSF/CD) with enhanced solubility and therapeutic effects. The effects and mechanism of DSF on the DDP resistance from the perspective of cancer cell stemness were determined.Results: Our data show that DDP-DSF/CD increased cytotoxicity and apoptosis of DDP-resistant A549 (A549/DDP) cells, inhibited stem cell transcriptional regulatory genes and drug resistance-associated proteins and reversed the DDP resistance in vitro and in vivo.Discussion: Overall, DDP-DSF/CD could be a promising formulation for the reversal of DDP resistance in NSCLC by inhibiting cancer cell stemness.
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Affiliation(s)
- Wenhui Ye
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Pharmacy, Qilu Hospital (Qingdao), Shandong University, Qingdao, China
| | - Huaiyou Lv
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Pharmacy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Qinxiu Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jianxiong Zhao
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xin Zhao
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Guozhi Zhao
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chongzheng Yan
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Fengqin Sun
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhongxi Zhao
- Department of Pharmaceutics, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key University Laboratory of Pharmaceutics & Drug Delivery Systems of Shandong Province, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiumei Jia
- Department of Pharmacy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
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2
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Yan XQ, Nan XR, Ren XY, Zhao JX. [Analysis of surgical approaches and mandibular treatment strategies for different types of tumors involving parapharyngeal space]. Zhonghua Kou Qiang Yi Xue Za Zhi 2024; 59:374-377. [PMID: 38548594 DOI: 10.3760/cma.j.cn112144-20240215-00073] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
In view of the surgical complexity of parapharyngeal space tumors involved, this paper summarized the disease data of patients with parapharyngeal space tumors involved in the Department of Oral and Maxillofacial Surgery, the First Hospital of Shanxi Medical University from January 2015 to January 2021. It also summarized the surgical approach and mandibular management, so as to explore surgical strategies for different characteristics of parapharyngeal space tumors involved. A total of 49 patients, including 28 males and 21 females, median age 52 years (range 24-72 years). They were treated with four surgical approaches for tumor resection, 25 cervical approach, 5 cheek and neck approach, 3 transoral approach, and 16 cervical-maxillary approach. Among the patients treated with cervical-maxillary approach, 3 patients were treated with mandible square resection, and 6 patients were treated with temporary mandible dissection. Seven cases were treated with tumor resection and partial mandibular resection. There are various surgical approaches and mandibular management methods involving tumors in the parapharyngeal space, and clinical decisions should be made based on tumor diameter, location, boundary, blood supply and pathological types.
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Affiliation(s)
- X Q Yan
- Depatement of Oral and maxillofacial Surgery, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - X R Nan
- Depatement of Oral and maxillofacial Surgery, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - X Y Ren
- Depatement of Oral and maxillofacial Surgery, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Zhao
- Depatement of Oral and maxillofacial Surgery, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
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3
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Zhao J, Sun Y, Gao P, Zhao Z, Wei G. S-allylmercaptocysteine promotes anti-tumor immunity by suppressing PD-L1 expression. Biomed Pharmacother 2023; 161:114446. [PMID: 37002570 DOI: 10.1016/j.biopha.2023.114446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/15/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
SAMC (S-allylmercaptocysteine) possesses significant anti-tumor effects and is proven to inhibit inflammation in chronic obstructive pulmonary disease. The potential to regulate the immune system of SAMC inspired us to detect whether SAMC can promote anti-tumor immunity. Here we found that SAMC inhibits tumor development and progression by boosting CD8+ T cell and NK cell infiltration and decreasing the frequency of immune suppressing Treg cells in tumor tissue and enhancing the systemic immune function. Mechanistically, we found that SAMC suppresses PD-L1 expression at transcriptional level to increase the activation of anti-tumor cytotoxic T cells. Finally, we proved that SAMC inhibits PD-L1 transcription by suppressing the phosphorylation activation of STAT3. In conclusion, our findings reveal that SAMC is a potent immunity regulator and a potential agent for immune checkpoint inhibition in tumor therapy.
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4
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Lei X, Zhao J, Wang J, Su D. Tracking lithiation with transmission electron microscopy. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1486-1] [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: 01/15/2023]
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5
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Dai LY, Zhao JX. [Re-recognition of methotrexate monotherapy in rheumatoid arthritis]. Zhonghua Yi Xue Za Zhi 2022; 102:2909-2913. [PMID: 36207865 DOI: 10.3760/cma.j.cn112137-20220224-00394] [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: 06/16/2023]
Abstract
With the in-depth research on treatment drugs of rheumatoid arthritis (RA), a variety of disease modifying anti-rheumatic drugs (DMARDs) have been approved for the treatment of RA. By now methotrexate (MTX) is still the anchor drug for RA treatment. The 2019 European League Against Rheumatism (EULAR) and 2021 American College of Rheumatology (ACR) recommendations for RA management both point out that for newly diagnosed RA patients, MTX monotherapy should be used as the first choice, which shows the importance of MTX monotherapy in DMARDs naïve RA. This paper mainly reviews the relevant researches on MTX in the treatment of RA in recent years, especially the relevant literature on the use of MTX monotherapy in initial treatment of RA. We summarize the development history, efficacy, treatment and adverse reactions of MTX to recognize the importance of MTX in the treatment of RA and the feasibility of MTX monotherapy.
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Affiliation(s)
- L Y Dai
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100091, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100091, China
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6
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Ferrier L, Bouteyre P, Pick A, Cueff S, Dang NHM, Diederichs C, Belarouci A, Benyattou T, Zhao JX, Su R, Xing J, Xiong Q, Nguyen HS. Unveiling the Enhancement of Spontaneous Emission at Exceptional Points. Phys Rev Lett 2022; 129:083602. [PMID: 36053693 DOI: 10.1103/physrevlett.129.083602] [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] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Exceptional points (EPs), singularities of non-Hermitian physics where complex spectral resonances degenerate, are one of the most exotic features of nonequilibrium open systems with unique properties. For instance, the emission rate of quantum emitters placed near resonators with EPs is enhanced (compared to the free-space emission rate) by a factor that scales quadratically with the resonance quality factor. Here, we verify the theory of spontaneous emission at EPs by measuring photoluminescence from photonic-crystal slabs that are embedded with a high-quantum-yield active material. While our experimental results verify the theoretically predicted enhancement, they also highlight the practical limitations on the enhancement due to material loss. Our designed structures can be used in applications that require enhanced and controlled emission, such as quantum sensing and imaging.
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Affiliation(s)
- L Ferrier
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - P Bouteyre
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - A Pick
- Applied Physics Department, Hebrew University of Jerusalem, Israel
| | - S Cueff
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - N H M Dang
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - C Diederichs
- Laboratoire de Physique de l'École normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France
| | - A Belarouci
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - T Benyattou
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
| | - J X Zhao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - R Su
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - J Xing
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qihua Xiong
- State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, People's Republic of China
- Institut Universitaire de France (IUF), F-75231 Paris, France
| | - H S Nguyen
- Université Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, 69130 Ecully, France
- Institut Universitaire de France (IUF), F-75231 Paris, France
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7
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Lou Y, Ma WJ, Wang ZJ, Yang N, Sun YJ, Liu YL, Lei RB, Zhao JX, Luo XF, Wang L, Chen YL, Han YL, Sun YX, Li YM, Cai J. [Writing protocols for the Chinese clinical practice guidelines of hypertension]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:671-675. [PMID: 35856223 DOI: 10.3760/cma.j.cn112148-20211126-01021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y Lou
- Hypertension Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - W J Ma
- Hypertension Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Z J Wang
- Evidence-Based Medicine Centre, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - N Yang
- Evidence-Based Medicine Centre, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Y J Sun
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Y L Liu
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - R B Lei
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - J X Zhao
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - X F Luo
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - L Wang
- Hypertension Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Y L Chen
- Evidence-Based Medicine Centre, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110000, China
| | - Y X Sun
- Department of Cardiology, First Hospital of China Medical University, Shenyang 110000, China
| | - Y M Li
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin 300450, China
| | - J Cai
- Hypertension Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing 100037, China
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8
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Sun T, Chen B, Guo Y, Zhu Q, Zhao J, Li Y, Chen X, Wu Y, Gao Y, Jin L, Chu ST, Wang F. Ultralarge anti-Stokes lasing through tandem upconversion. Nat Commun 2022; 13:1032. [PMID: 35210410 PMCID: PMC8873242 DOI: 10.1038/s41467-022-28701-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 12/17/2020] [Accepted: 01/20/2022] [Indexed: 11/09/2022] Open
Abstract
Coherent ultraviolet light is important for applications in environmental and life sciences. However, direct ultraviolet lasing is constrained by the fabrication challenge and operation cost. Herein, we present a strategy for the indirect generation of deep-ultraviolet lasing through a tandem upconversion process. A core-shell-shell nanoparticle is developed to achieve deep-ultraviolet emission at 290 nm by excitation in the telecommunication wavelength range at 1550 nm. The ultralarge anti-Stokes shift of 1260 nm (~3.5 eV) stems from a tandem combination of distinct upconversion processes that are integrated into separate layers of the core-shell-shell structure. By incorporating the core-shell-shell nanoparticles as gain media into a toroid microcavity, single-mode lasing at 289.2 nm is realized by pumping at 1550 nm. As various optical components are readily available in the mature telecommunication industry, our findings provide a viable solution for constructing miniaturized short-wavelength lasers that are suitable for device applications.
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Affiliation(s)
- Tianying Sun
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.,School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Bing Chen
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Yang Guo
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Qi Zhu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Yuhua Li
- Department of Physics, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
| | - Xian Chen
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yunkai Wu
- State Key Laboratory on Tunable laser Technology, Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Yaobin Gao
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, China
| | - Limin Jin
- State Key Laboratory on Tunable laser Technology, Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Sai Tak Chu
- Department of Physics, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China. .,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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9
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Sun Y, Zhao J, Sun X, Ma G. Identification of TNFAIP8 as an Immune-Related Biomarker Associated With Tumorigenesis and Prognosis in Cutaneous Melanoma Patients. Front Genet 2021; 12:783672. [PMID: 34925463 PMCID: PMC8671633 DOI: 10.3389/fgene.2021.783672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/11/2021] [Indexed: 01/17/2023] Open
Abstract
Tumor necrosis factor-α–induced protein 8 (TNFAIP8) is a member of the TIPE/TNFAIP8 family which is associated with inflammation and tumorigenesis. The potential role of TNFAIP8 in a tumor immune microenvironment in skin cutaneous melanoma (SKCM) has not yet been investigated. The TNFAIP8 expression was evaluated via gene expression profiling interactive analysis (GEPIA). We also evaluated the influence of TNFAIP8 on overall survival via GEPIA and PrognoScan. After GO and KEGG pathway analyses, the correlation between the TNFAIP8 expression level and immune cells or gene markers of the immune infiltration level was explored by R-language. The result showed the TNFAIP8 expression was significantly reduced in SKCM in comparison with normal control. In SKCM, the TNFAIP8 expression in higher levels was associated with the better overall survival. The high expression of TNFAIP8 was positively correlated with the immune score and promoted immune cell infiltration in SKCM patients. TNFAIP8 can be a positive prognosis marker or new immunotherapy target in SKCM.
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Affiliation(s)
- Yuliang Sun
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China.,Department of Hand Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Jianxiong Zhao
- Key Laboratory of Experimental Teratology, Department of Human Anatomy, Ministry of Education, Shandong University School of Medicine, Jinan, China
| | - Xiaoru Sun
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guangxin Ma
- Hematology and Oncology Unit, Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
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10
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Wang N, Deng Z, Zhu Q, Zhao J, Xie K, Shi P, Wang Z, Chen X, Wang F, Shi J, Zhu G. An erythrocyte-delivered photoactivatable oxaliplatin nanoprodrug for enhanced antitumor efficacy and immune response. Chem Sci 2021; 12:14353-14362. [PMID: 34880985 PMCID: PMC8580000 DOI: 10.1039/d1sc02941j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 05/31/2021] [Accepted: 09/17/2021] [Indexed: 12/18/2022] Open
Abstract
The outcome of conventional platinum (Pt)-based chemotherapy is limited by reduced circulation, failure to accumulate in the tumor, and dose-limiting toxicity arising from non-controllable activation. To address these limitations, we present an erythrocyte-delivered and near-infrared (NIR) photoactivatable PtIV nanoprodrug for advanced cancer treatment. Compared with small molecule PtIV prodrugs, this nanoprodrug exhibits significantly enhanced stability, prolonged circulation in the blood, and minimized side effects. The hitchhiking of the nanoprodrug on erythrocytes dramatically increases Pt accumulation in the tumor. Upon irradiation, the nanoprodrug releases oxaliplatin in a controllable manner, resulting in significant antitumor activity against breast tumors in vivo, as evidenced by the complete elimination of tumors from a single-dose injection. Additionally, this nanoprodrug is associated with remarkably enhanced immunopotentiation. Our study highlights an efficient strategy to overcome the shortcomings of traditional Pt-based chemotherapy via the erythrocyte-mediated delivery of an NIR-activatable nanoprodrug of oxaliplatin, a clinically used anticancer drug. Strategic illustration of an erythrocyte-delivered and near-infrared photoactivatable oxaliplatin nanoprodrug for enhanced antitumor efficacy and immune response.![]()
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Affiliation(s)
- Na Wang
- Department of Chemistry, City University of Hong Kong Hong Kong SAR P. R. China .,City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 P. R. China
| | - Zhiqin Deng
- Department of Chemistry, City University of Hong Kong Hong Kong SAR P. R. China .,City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 P. R. China
| | - Qi Zhu
- Department of Materials Science and Engineering, City University of Hong Kong Hong Kong SAR P. R. China
| | - Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong Hong Kong SAR P. R. China
| | - Kai Xie
- Department of Biomedical Engineering, City University of Hong Kong Hong Kong SAR P. R. China
| | - Peng Shi
- Department of Biomedical Engineering, City University of Hong Kong Hong Kong SAR P. R. China
| | - Zhigang Wang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University Shenzhen 518060 P. R. China
| | - Xianfeng Chen
- School of Engineering, Institute for Bioengineering, The University of Edinburgh Mayfield Road Edinburgh EH9 3JL UK
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong Hong Kong SAR P. R. China.,City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 P. R. China
| | - Jiahai Shi
- Department of Biomedical Sciences, City University of Hong Kong Hong Kong SAR P. R. China
| | - Guangyu Zhu
- Department of Chemistry, City University of Hong Kong Hong Kong SAR P. R. China .,City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 P. R. China
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11
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Huang D, Wang Y, You QH, Wang X, Zhang JY, Ding X, Zhang BB, Cui HY, Zhao JX, Sheng WQ. [A novel attention fusion network-based multiple instance learning framework to automate diagnosis of chronic gastritis with multiple indicators]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1116-1121. [PMID: 34619863 DOI: 10.3760/cma.j.cn112151-20210314-00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the performance of the attention-multiple instance learning (MIL) framework, an attention fusion network-based MIL, in the automated diagnosis of chronic gastritis with multiple indicators. Methods: A total of 1 015 biopsy cases of gastritis diagnosed in Fudan University Cancer Hospital, Shanghai, China and 115 biopsy cases of gastritis diagnosed in Shanghai Pudong Hospital, Shanghai, China were collected from January 1st to December 31st in 2018. All pathological sections were digitally converted into whole slide imaging (WSI). The WSI label was based on the corresponding pathological report, including "activity" "atrophy" and "intestinal metaplasia". The WSI were divided into a training set, a single test set, a mixed test set and an independent test set. The accuracy of automated diagnosis for the Attention-MIL model was validated in three test sets. Results: The area under receive-operator curve (AUC) values of Attention-MIL model in single test sets of 240 WSI were: activity 0.98, atrophy 0.89, and intestinal metaplasia 0.98; the average accuracy of the three indicators was 94.2%. The AUC values in mixed test sets of 117 WSI were: activity 0.95, atrophy 0.86, and intestinal metaplasia 0.94; the average accuracy of the three indicators was 88.3%. The AUC values in independent test sets of 115 WSI were: activity 0.93, atrophy 0.84, and intestinal metaplasia 0.90; the average accuracy of the three indicators was 85.5%. Conclusions: To assist in pathological diagnosis of chronic gastritis, the diagnostic accuracy of Attention-MIL model is very close to that of pathologists. Thus, it is suitable for practical application of artificial intelligence technology.
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Affiliation(s)
- D Huang
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - Y Wang
- Shanghai Engineering Research Center of Artificial Intelligence Technology for Neoplastic Diseases, Shanghai 200032, China
| | - Q H You
- Department of Pathology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
| | - X Wang
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - J Y Zhang
- Wonders Information Co. Ltd, Shanghai 201112, China
| | - X Ding
- Wonders Information Co. Ltd, Shanghai 201112, China
| | - B B Zhang
- Shanghai Foremost Medical Technology Co. Ltd, Shanghai 201112, China
| | - H Y Cui
- Wonders Information Co. Ltd, Shanghai 201112, China
| | - J X Zhao
- Wonders Information Co. Ltd, Shanghai 201112, China
| | - W Q Sheng
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
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12
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Liu Y, He H, He G, Zhao J, Yang Y, Tian G. Segregated polylactide/poly(butylene adipate‐co‐terephthalate)/
MWCNTs
nanocomposites with excellent electrical conductivity and electromagnetic interference shielding. J Appl Polym Sci 2021. [DOI: 10.1002/app.51668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yufan Liu
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering (SCUT) Ministry of Education, South China University of Technology Guangzhou China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Hezhi He
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering (SCUT) Ministry of Education, South China University of Technology Guangzhou China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Guoshan He
- National Quality Supervision and Inspection Center of Polymer Engineering Materials and Products Guangzhou Quality Supervision and Testing Institute Guangzhou China
| | - Jianxiong Zhao
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering (SCUT) Ministry of Education, South China University of Technology Guangzhou China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Yike Yang
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering (SCUT) Ministry of Education, South China University of Technology Guangzhou China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Guidong Tian
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering (SCUT) Ministry of Education, South China University of Technology Guangzhou China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
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13
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Zhao JX. Interplay between RNA Methylation Eraser FTO and Writer METTL3 in Renal Clear Cell Carcinoma Patient Survival. Recent Pat Anticancer Drug Discov 2021. [DOI: 10.2174/22123970mtezvotcqw] [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: 11/22/2022]
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14
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Hao XY, Zhang MZ, Zhang XZ, Mu CT, Zhang CX, Zhao JX, Zhang JX. Effects of feeding corn bran and soybean hulls on nutrient digestibility, rumen microbial protein synthesis, and growth performance of finishing lambs. Animal 2021; 15:100172. [PMID: 33589350 DOI: 10.1016/j.animal.2021.100172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/20/2020] [Revised: 12/21/2020] [Accepted: 01/04/2021] [Indexed: 11/23/2022] Open
Abstract
Some grain processing by-products rich in digestible fiber are good feed resources for ruminants. This experiment was conducted to investigate the effects of replacing a portion of corn and corn stover with the combinations of corn bran and soybean hulls in the diet of fattening lambs on nutrient digestion, rumen microbial protein synthesis, and growth performance. A total of 36 Dorper × Small Thin-Tailed crossbred ram lambs (BW = 22.2 ± 0.92 kg; mean ± SD) were randomly divided into three groups, and each group was fed 1 of 3 treatment diets: 1) 0% corn bran and soybean hulls (control); 2) 9% corn bran and 9% soybean hulls (18MIX); and 3) 17% corn bran and 17% soybean hulls (34MIX). The feeding experiment was conducted for 70 days, with the first 10 days for adaption. The DM intake was higher for 34MIX (1635.3 g/d) than for control diet (1434.7 g/d; P = 0.001). Lambs fed 18MIX and 34MIX diets (230.2 and 263.6 g/d, respectively) had higher average daily gain and feed efficiency than those fed control diet (194.8 g/d; P < 0.01). Dry matter and NDF digestibility for 34MIX group (60.9 and 49.5%) were higher than for control (55.2 and 41.3%; P < 0.01). No difference was observed in nitrogen digestibility among treatment diets (P = 0.778). The lambs fed 34MIX diet excreted more urinary purine derivatives, indicating that more microbial protein was yielded than those fed control diet (P < 0.01), while 18MIX was not different from the other two diets (P > 0.05). The metabolizable protein supplies were improved with increasing co-products inclusion rate. The results indicated that corn bran and soybean hulls in combination can effectively replace a portion of corn and corn stover in the ration of finishing lambs with positive effect on nutrient digestion and growth performance.
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Affiliation(s)
- X Y Hao
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - M Z Zhang
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - X Z Zhang
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - C T Mu
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - C X Zhang
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China; Collaborative Innovation Center for Efficient and Safe Production of Livestock, College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - J X Zhao
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China; Collaborative Innovation Center for Efficient and Safe Production of Livestock, College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China
| | - J X Zhang
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China; Collaborative Innovation Center for Efficient and Safe Production of Livestock, College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China.
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15
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Zhang JF, Ye XL, Duan M, Zhou XL, Yao ZZ, Zhao JX. [Clinical characteristics of elderly and younger onset rheumatoid arthritis]. Zhonghua Yi Xue Za Zhi 2021; 100:3788-3792. [PMID: 33379844 DOI: 10.3760/cma.j.cn112137-20200506-01439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical and laboratory characteristics and therapy methods of elderly onset rheumatoid arthritis (EORA) and younger onset rheumatoid arthritis (YORA). Methods: The clinical, laboratory and therapeutic data of 481 RA patients in the Department of Rheumatology and Immunology in Peking University Third Hospital from January 2013 to December 2018 were collected and used to analyze the difference of characteristics between EORA group and YORA group, which might be useful for better diagnosis and treatment of EORA patients. Quantitative data of normal distribution were compared with t test between the two groups. Results: There were 481 patients in this cohort, of which 137(28.5%) were EORA, 344(71.5%) were YORA, with a mean age of (59±14) years (19-87 years). There were 358 females (74.4%) and 123 males (25.6%). The percentage of male patients was obviously higher in EORA group (36.5% vs 21.2%, χ(2)=12.012, P<0.01), and the average disease course was obviously shorter (Z=-7.985, P<0.01). Disease Activity Score 28 (DAS28) score was higher in EORA group (5.6±1.3 vs 5.2±1.6, t=2.549, P<0.05), meanwhile the incidences of pleural effusion and interstitial lung disease (ILD) were higher (6.6% vs 1.7%, 29.9% vs 18.3%, respectively; χ(2)=7.550, 7.797, both P<0.05). The incidences of venous thrombosis, primary hypertension, diabetes mellitus, cerebrovascular disease, coronary heart disease (CHD), peripheral atherosclerosis and cataract in EORA group were all significantly higher than those in YORA group (all P<0.05). Erythrocyte sedimentation rate (ESR) and D-Dimer in EORA group were all remarkably higher (both P<0.05). The rate of using glucocorticoid in EORA group was higher but the rate of using methotrexate and anti-tumor necrosis factor-α agents were lower (χ(2)=5.271, 8.407, 9.356, all P<0.05). Conclusion: Compared to YORA group, the percentage of male patients and disease activity of EORA group are higher. The occurrence of pleural effusion, ILD, venous thrombosis, primary hypertension, diabetes mellitus, cerebrovascular disease, CHD, peripheral atherosclerosis and cataract in EORA group are higher than those in YORA group.
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Affiliation(s)
- J F Zhang
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X L Ye
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - M Duan
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X L Zhou
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - Z Z Yao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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16
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Zhao J, Méndez-Sánchez D, Roddan R, Ward JM, Hailes HC. Norcoclaurine Synthase-Mediated Stereoselective Synthesis of 1,1’-Disubstituted, Spiro- and Bis-Tetrahydroisoquinoline Alkaloids. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jianxiong Zhao
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Daniel Méndez-Sánchez
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Rebecca Roddan
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
- Institute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London, Malet Street, London WC1E 8HX, United Kingdom
| | - John M. Ward
- Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Helen C. Hailes
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
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17
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Iqbal S, Qu Y, Dong Z, Zhao J, Rauf Khan A, Rehman S, Zhao Z. Poly (β‐amino esters) based potential drug delivery and targeting polymer; an overview and perspectives (review). Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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18
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Zhao J, Chen B, Wang F. Shedding Light on the Role of Misfit Strain in Controlling Core-Shell Nanocrystals. Adv Mater 2020; 32:e2004142. [PMID: 33051904 DOI: 10.1002/adma.202004142] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/21/2020] [Indexed: 05/17/2023]
Abstract
Heteroepitaxial modification of nanomaterials has become a powerful means to create novel functionalities for various applications. One of the most elementary factors in heteroepitaxial nanostructures is the misfit strain arising from mismatched lattices of the constituent parts. Misfit strain not only dictates epitaxy kinetics for diversifying nanocrystal morphologies but also provides rational control over materials properties. In recent years, advances in chemical synthesis along with the rapid development of electron microscopy and X-ray diffraction techniques have enabled a substantial understanding of strain-related processes, which offers theoretical foundation and experimental guidance for researchers to refine heteroepitaxial nanostructures and their properties. Herein, recent investigations on heterogeneous core-shell nanocrystals containing misfit strains are summarized, with a focus on the mechanistic understanding of strain and strain-induced effects such as tuning the epitaxial habit, modulating the optical emission, and enhancing the catalytic activity and magnetic coercivity.
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Affiliation(s)
- Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Bing Chen
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
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19
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Yu B, Zhao JX, Shi B, Zhu YH, Chen C. [Effect of risperidone on prepulse inhibition of the startle reflex and P50 deficit in patients with first-episode and chronic schizophrenia]. Zhonghua Yi Xue Za Zhi 2020; 100:2841-2845. [PMID: 32988144 DOI: 10.3760/cma.j.cn112137-20200323-00893] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of antipsychotic medicine risperidone on prepulse inhibition of the startle reflex (PPI) and P50 deficit in patients with first-episode and chronic. Methods: Thirty-eight patients with first-episode schizophrenia and 36 patients with chronic schizophrenia, both in acute stage, were enrolled in the study. All patients were treated with risperidone of different doses (2 to 6mg/d). All patients fulfilled the evaluation of PPI and P50 before treatment and 8 weeks after treatment. The psychotic symptoms were assessed with Positive and Negative Syndrome Scale (PANSS), and the therapeutic effects were evaluated with PANSS reduction rate. Results: (1) There was no significant difference in PPI and P50 parameters between the two groups before treatment (PPI ratio: first group 43%±29%, chronic group 42%±27%, P>0.05; P50 S2/S1 ratio: first group 83%±33%, chronic group 82%±24%, P>0.05). (2) There was no significant correlation between PPI and P50 inhibition parameters and disease course, psychotic episodes and psychiatric symptoms (PANSS total score, positive symptoms score, negative symptoms score and general psychopathology symptoms score) of schizophrenia (P>0.05). (3) Except the group main effect for S2 amplitude (F=5.75, P=0.019), there was no significant change for main effect and interaction of the other P50 and PPI inhibition ratio parameters after treatment (P50 S2/S1 ratio: first group before treatment 83%±33%, after treatment 85%±49%, P>0.05; chronic group before treatment 82%±44%, after treatment 84%±35%, P>0.05. PPI ratio: first group before treatment 43%±29%, after treatment 42%±27%; chronic group before treatment 42%±27%, after treatment 41%±28%,P>0.05). The effect of risperidone on P50 and PPI parameters was not related to the therapeutic effect. Conclusion: Deficit in sensory gating inhibition exists in both first-episode schizophrenia and chronic schizophrenia, and risperidone is not effective in treating the deficit in sensory gating (PPI and P50) inhibition of schizophrenia.
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Affiliation(s)
- B Yu
- Department of Psychiatry, the Second Hospital of Jinghua, Jinhua 321016, China
| | - J X Zhao
- Department of Psychiatry, the Second Hospital of Jinghua, Jinhua 321016, China
| | - B Shi
- Department of Psychiatry, the Second Hospital of Jinghua, Jinhua 321016, China
| | - Y H Zhu
- Department of Psychiatry, Jinhua Hospital of Zhejiang University Jinhua 321000, China
| | - C Chen
- Department of Judicial Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou 325005, China
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20
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Hao XY, Yu SC, Mu CT, Wu XD, Zhang CX, Zhao JX, Zhang JX. Replacing soybean meal with flax seed meal: effects on nutrient digestibility, rumen microbial protein synthesis and growth performance in sheep. Animal 2020; 14:1841-1848. [PMID: 32172723 DOI: 10.1017/s1751731120000397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Indexed: 11/06/2022] Open
Abstract
Flax seed meal (FSM) is rich in various nutrients, especially CP and energy, and can be used as animal protein feed. In animal husbandry production, it is a long-term goal to replace soybean meal (SBM) in animal feed with other plant protein feed. However, studies on the effects of replacing SBM with FSM in fattening sheep are limited. The aim of this experiment was to study the effects of replacing a portion of SBM with FSM on nutrient digestibility, rumen microbial protein synthesis and growth performance in sheep. Thirty-six Dorper × Small Thin-Tailed crossbred rams (BW = 40.4 ± 1.73 kg, mean ± SD) were randomly assigned into four groups. The dietary treatments (forage/concentrate, 45 : 55) were isocaloric according to the nutrient requirements of rams. Soybean meal was replaced with FSM at different levels (DM basis): (1) 18% SBM (18SBM), (2) 12% SBM and 6% FSM (6FSM), (3) 6% SBM and 12% FSM (12FSM) and (4) 18% FSM (18FSM). The rams were fed in individual pens for 60 days, with the first 10 days for adaptation to diets, and then the digestibility of nutrients was determined. There was no significant difference in DM intake, but quadratic (P < 0.001) effects on the average daily gain and feed efficiency were detected, with the highest values in the 6FSM and 12FSM groups. For DM and NDF digestibility, quadratic effects were observed with the higher values in the 6FSM and 12FSM groups, but the digestibility of CP linearly decreased with the increase in FSM in the diet (P = 0.043). There was a quadratic (P < 0.001) effect of FSM inclusion rate on the estimated microbial CP yield. However, the values of intestinally absorbable dietary protein decreased linearly (P < 0.001). For the supply of metabolisable protein, both the linear (P = 0.001) and quadratic (P = 0.044) effects were observed with the lowest value in the 18FSM group. Overall, the results indicated that SBM can be effectively replaced by FSM in the diets of fattening sheep and the optimal proportion was 12.0% under the conditions of this experiment.
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Affiliation(s)
- X Y Hao
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - S C Yu
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - C T Mu
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - X D Wu
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - C X Zhang
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - J X Zhao
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
- Collaborative Innovation Center for Efficient and Safe Production of Livestock, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
| | - J X Zhang
- Department of Animal Production, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Mingxian South Road 1th, Taigu030801, China
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Nelson A, Phipps RJ, Crane GJ, Venanzi NAE, Lockley WJS, Tredwell M, Buurma NJ, Ballard A, Ahmad HO, Narduolo S, Rosa L, Chand N, Cosgrove DA, Varkonyi P, Asaad N, Tomasi S, Leach AG, Summerhill N, Bloom J, Newby M, Madden S, Roman D, Exner RM, Cortezon-Tamarit F, Ge H, Paisey S, Pascu SI, de Rosales RTM, Hailes HC, Wang Y, Zhao J, Méndez-Sánchez D, Rodan R, Subrizi F, Lichman BR, Keep NH, Ward JM, Harris M, Lamb M, Wilson V, Iafrate P, Bulat F, Néves AA, Hesse F, Hu DE, Aigbirhio F, Leeper FJ, Brindle KM, Rowbotham JS, Urata K, Reeve HA, Vincent KA, Hueting R. Abstracts of the 28 th International Isotope Society (UK group) Symposium: The Synthesis & Applications of Labelled Compounds 2019. J Labelled Comp Radiopharm 2020; 63:608-617. [PMID: 32678462 DOI: 10.1002/jlcr.3867] [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] [Received: 04/19/2020] [Accepted: 04/23/2020] [Indexed: 11/08/2022]
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Zhao J, Chen B, Chen X, Zhang X, Sun T, Su D, Wang F. Tuning epitaxial growth on NaYbF 4 upconversion nanoparticles by strain management. Nanoscale 2020; 12:13973-13979. [PMID: 32579658 DOI: 10.1039/d0nr03374j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Core-shell structural engineering is a common strategy for tuning upconversion luminescence in lanthanide-doped nanoparticles. However, epitaxial growth on hexagonal phase NaYbF4 nanoparticles typically suffers from incomplete shell coverage due to the large and anisotropic interfacial strain. Herein, we explore the effects of core particle size and morphology as well as reaction temperature on controlling the epitaxial growth of NaGdF4 shells on NaYbF4 nanoparticles with misfit parameters of fa = 1.58% and fl = 2.24% for axial and lateral growth, respectively. Rod-like core particles with a long length and a large diameter are found to promote shell growth with high surface coverage by facilitating the relaxation of lattice strains. Furthermore, the primary NaGdF4 shell can serve as a transition layer to mediate the growth of additional NaNdF4 coating layers that display an even larger lattice misfit with the core (fa = 2.98%; fl = 4.32%). The resultant NaYbF4@Na(Gd/Nd)F4 core-shell nanostructures simultaneously show strong multiphoton upconversion luminescence and superior magnetic resonance T1 ionic relaxivity. Our findings are important for the rational design of core-shell upconversion nanoparticles with optimized properties and functionality for technological applications.
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Affiliation(s)
- Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.
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23
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Yin FR, Guo YH, Jia WX, Luo YX, Mi LL, Zhao JX, Zhang XL. [Ulcerative colitis complicated with Listeria infection and meningoencephalitis: a case report]. Zhonghua Nei Ke Za Zhi 2020; 59:550-552. [PMID: 32594690 DOI: 10.3760/cma.j.cn112138-20191024-00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- F R Yin
- Department of Gastroenterology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Y H Guo
- Department of Gastroenterology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - W X Jia
- Department of Gastroenterology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Y X Luo
- Department of Gastroenterology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - L L Mi
- Department of Gastroenterology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - J X Zhao
- Department of Neurology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - X L Zhang
- Department of Gastroenterology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
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An L, Zhao J, Sun X, Zhou Y, Zhao Z. S-allylmercaptocysteine inhibits mucin overexpression and inflammation via MAPKs and PI3K-Akt signaling pathways in acute respiratory distress syndrome. Pharmacol Res 2020; 159:105032. [PMID: 32574825 PMCID: PMC7305891 DOI: 10.1016/j.phrs.2020.105032] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 11/17/2022]
Abstract
Cytokine storm is an important cause of acute respiratory distress syndrome and multiple organ failure. Excessive secretion and accumulation of mucins on the surface of airway cause airway obstruction and exacerbate lung infections. MUC5AC and MUC5B are the main secreted mucins and overexpressed in various inflammatory responses. S-allylmercaptocysteine, a water-soluble organic sulfur compound extracted from garlic, has anti-inflammatory and anti-oxidative effects for various pulmonary diseases. The aim of this work was to investigate the therapeutic effects of SAMC on mucin overproduction and inflammation in 16HBE cells and LPS-induced ARDS mice. Results show that SAMC treatment ameliorated inflammatory cell infiltration and lung histopathological changes in the LPS-induced ARDS mice. SAMC also inhibited the expressions of MUC5AC and MUC5B, decreased the production of pro-inflammatory markers (IL-6, TNF-α, CD86 and IL-12) and increased the production of anti-inflammatory markers (IL-10, CD206 and TGF-β). These results confirm that SAMC had potential beneficial effects on suppressed hyperinflammation and mucin overexpression. Furthermore, SAMC exerted the therapeutic effects through the inhibition of phosphorylation of MAPKs and PI3K-Akt signaling pathways in the 16HBE cells and mice. Overall, our results demonstrate the effects of SAMC on the LPS-induced mucin overproduction and inflammation both in the 16HBE cells and mice.
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Affiliation(s)
- Lulu An
- School of Pharmaceutical Sciences, Cheelloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Jianxiong Zhao
- School of Basic Medical Sciences, Cheelloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, PR China
| | - Xiao Sun
- School of Pharmaceutical Sciences, Cheelloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Yingying Zhou
- School of Pharmaceutical Sciences, Cheelloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences, Cheelloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China; Shandong Key University Laboratory of Pharmaceutics & Drug Delivery Systems, 44 West Wenhua Road, Jinan, Shandong 250012, PR China; Shandong Engineering & Technology Research Center for Jujube Food and Drug, 44 West Wenhua Road, Jinan, Shandong 250012, PR China.
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Yao Y, Huang JJ, Jin X, Zhao JX, Xia CJ, Tong Y, Gao Y, Yu LS, Fan YY. Function of IL-33 in Wound Age Estimation of Skin Wounds in Mice. Fa Yi Xue Za Zhi 2020; 36:192-198. [PMID: 32530166 DOI: 10.12116/j.issn.1004-5619.2020.02.009] [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] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To explore the application value of interleukin-33 (IL-33) in wound age estimation in forensic practice by observing the sequential changes of IL-33 after skin wound. Methods Skin wound models were generated on the back of mice with a round file of 5 mm in diameter. Skin samples of the same size were taken from the same parts of mice in control group and injury group 1 h, 3 h, 6 h, 12 h, 1 d, 3 d, 5 d, 7 d and 10 d after skin wound. Hematoxylin-eosin (HE) staining method was applied to observe the morphological changes in the recovering process after skin wound. Western blotting, immunohistochemistry staining and double immunofluorescence staining methods were applied to detect the expression changes of IL-33 in the skin wound samples. Results The results of Western blotting showed that the expression of IL-33 protein decreased slightly at 3 h after skin wound, increased gradually at 6 h after skin wound, and reached the peak value at 3 d, then decreased gradually. Immunohistochemistry staining results showed that faint positive expression of IL-33 was observed in epidermis, hair follicles, sebaceous glands and dermal resident cells of the control group skin. The positive cell rate of IL-33 increased at 3 h after skin wound and reached the peak value at 3 d, then decreased gradually. The results of double immunofluorescence staining showed that the majority of IL-33 positive cells from 1 d to 3 d after wound were macrophages, while the majority of IL-33 positive cells from 5 d to 7 d after wound were myofibroblasts. In addition, the results of HE staining showed that the wound healing process of the skin wound model was consistent with the pathological development law of inflammation. Conclusion IL-33 could become a reference index for wound age estimation of skin wound in forensic practice.
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Affiliation(s)
- Y Yao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J J Huang
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - X Jin
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J X Zhao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - C J Xia
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Tong
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Gao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - L S Yu
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Y Fan
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
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Lin YW, Chang RY, Rao GG, Jermain B, Han ML, Zhao JX, Chen K, Wang JP, Barr JJ, Schooley RT, Kutter E, Chan HK, Li J. Pharmacokinetics/pharmacodynamics of antipseudomonal bacteriophage therapy in rats: a proof-of-concept study. Clin Microbiol Infect 2020; 26:1229-1235. [PMID: 32387436 DOI: 10.1016/j.cmi.2020.04.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 04/21/2020] [Accepted: 04/27/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Pan-drug-resistant (PDR) Pseudomonas aeruginosa is one of the three top-priority pathogens identified by the WHO, and bacteriophages have been investigated as an alternative therapy. However, knowledge on the pharmacokinetics/pharmacodynamics (PK/PD) of phage therapy is sparse, limiting its clinical applications. This study aimed to evaluate the PK/PD of the antipseudomonal phage øPEV20 in vivo following intravenous administration. METHODS Healthy Sprague-Dawley rats were given øPEV20 as a single intravenous bolus of ~6, 9 and 11-log10PFU/rat. Arterial blood was sampled over 72 h. At 72 h, the animals were killed and multiple tissues were harvested for biodistribution studies. A PK model was developed using the importance sampling algorithm and deterministic simulations with a PD model were performed. RESULTS A three-compartment model with non-linear clearance described the exposure of øPEV20 in blood. Model evaluation indicated that the model was robust and parameter estimates were accurate. The median (standard error) values of model-predicted PK parameters for VC, VP1, VP2, Q1, Q2, Vm and Km were 111 mL/rat (8.5%), 128 mL/rat (4.97%), 180 mL/rat (4.59%), 30.4 mL/h/rat (19.2%), 538 mL/h/rat (4.97%), 4.39 × 1010 PFU/h/rat (10.2%) and 1.64 × 107 PFU/mL/rat (3.6%), respectively. The distribution of øPEV20 was not homogeneous; there was preferential accumulation in the liver and spleen. Deterministic simulations with a PD model confirmed the importance of the host immune system in facilitating phage-mediated bacterial elimination. CONCLUSIONS We developed a robust PK model to describe the disposition of phages in healthy rats. This model may have significant potential in facilitating future preclinical and clinical PK/PD investigations.
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Affiliation(s)
- Y W Lin
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia.
| | - R Yoon Chang
- Advanced Drug Delivery Group, School of Pharmacy, The University of Sydney Faculty of Medicine and Health, Sydney, NSW, Australia
| | - G G Rao
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - B Jermain
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - M-L Han
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - J X Zhao
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - K Chen
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - J P Wang
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - J J Barr
- School of Biological Sciences, Monash University, Clayton, VIC, Australia
| | - R Turner Schooley
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - E Kutter
- The Evergreen State College, Olympia, WA, USA
| | - H-K Chan
- Advanced Drug Delivery Group, School of Pharmacy, The University of Sydney Faculty of Medicine and Health, Sydney, NSW, Australia
| | - J Li
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, Australia.
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27
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Jin X, Zhao JX, Yao Y, Huang JJ, Zhang F, Li XB, Ye GH, Fan YY, Huang DP, Xia NZ, Zou DH, Liu NG, Yu LS. Application of Virtual Anatomy Technology in Postmortem Examination of Medical Dispute Cases. Fa Yi Xue Za Zhi 2020; 36:72-76. [PMID: 32250083 DOI: 10.12116/j.issn.1004-5619.2020.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To discuss the application value of CT scanning technology in cause of death determination of medical dispute cases. Methods From July 2017 to December 2018, postmortem CT imaging data of 12 medical dispute cases were collected. CT imaging diagnosis results and anatomy findings as well as differences between antemortem and postmortem CT diagnosis were compared. The advantages and disadvantages of CT routine tests of the cadavers in terms of the diagnosis of disease and damage were analyzed. Results The comparison between CT imaging diagnosis and anatomical findings showed that CT scans had advantages in the diagnosis of disease and damage with large differences in density changes, such as atelectasis, pneumonia, calcification, fracture and hemorrhage, etc. The comparison of CT diagnosis in antemortem and postmortem examination showed that the cadavers of medical dispute cases were well preserved and that postmortem CT scan was meaningful for the diagnosis of antemortem diseases. Conclusion Virtual anatomy technology has a relatively high application value in postmortem examination of medical dispute cases. It can provide effective information for the appraisers before the autopsy and can also provide a reference for cause of death analysis when the anatomy cannot be performed.
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Affiliation(s)
- X Jin
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Department of Pathology and Forensic Medicine, Jiaxing University Medical College, Jiaxing 314001, Zhejiang Province, China
| | - J X Zhao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Yao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J J Huang
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - F Zhang
- Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - X B Li
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - G H Ye
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Y Fan
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - D P Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang Province, China
| | - N Z Xia
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang Province, China
| | - D H Zou
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - N G Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L S Yu
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
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Peng D, Jiang Y, Huang B, Du Y, Zhao J, Zhang X, Ma R, Golovynskyi S, Chen B, Wang F. A ZnS/CaZnOS Heterojunction for Efficient Mechanical-to-Optical Energy Conversion by Conduction Band Offset. Adv Mater 2020; 32:e1907747. [PMID: 32128925 DOI: 10.1002/adma.201907747] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/18/2020] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Actively collecting the mechanical energy by efficient conversion to other forms of energy such as light opens a new possibility of energy-saving, which is of pivotal significance for supplying potential solutions for the present energy crisis. Such energy conversion has shown promising applications in modern sensors, actuators, and energy harvesting. However, the implementation of such technologies is being hindered because most luminescent materials show weak and non-recoverable emissions under mechanical excitation. Herein, a new class of heterojunctioned ZnS/CaZnOS piezophotonic systems is presented, which displays highly reproducible mechanoluminescence (ML) with an unprecedented intensity of over two times higher than that of the widely used commercial ZnS (the state-of-the-art ML material). Density functional theory calculations reveal that the high-performance ML originates from efficient charge transfer and recombination through offset of the valence and conduction bands in the heterojunction interface region. By controlling the ZnS-to-CaZnOS ratio in conjunction with manganese (Mn2+ ) and lanthanide (Ln3+ ) doping, tunable ML across the full spectrum is activated by a small mechanical stimulus of 1 N (10 kPa). The findings demonstrate a novel strategy for constructing efficient ML materials by leveraging interface effects and ultimately promoting practical applications for ML.
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Affiliation(s)
- Dengfeng Peng
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yue Jiang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Bolong Huang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, China
| | - Yangyang Du
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, Hong Kong SAR, 999077, China
| | - Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, Hong Kong SAR, 999077, China
| | - Xin Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, Hong Kong SAR, 999077, China
| | - Ronghua Ma
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Sergii Golovynskyi
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Bing Chen
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, Hong Kong SAR, 999077, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, Hong Kong SAR, 999077, China
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Gao Z, Zhang HT, Wang J, Yu HM, Di XM, Xu K, Liu ZZ, Zhao JX. [The dosimetry comparison study between 3D print template and free-hand guided of precision (125)I seeds implantation on superficial metastatic carcinoma]. Zhonghua Yi Xue Za Zhi 2019; 99:3694-3698. [PMID: 31874492 DOI: 10.3760/cma.j.issn.0376-2491.2019.47.004] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the dose difference of (125)I seeds implantation on superficial metastatic carcinoma between 3D print template guided operation and traditional implantation. To investigate the accuracy of seeds implantation according preplan guided by 3D print template. Methods: A total of 21 cases of patient with 27 lesions underwent (125)I seeds implantation from January 2015 to May 2018 in Hebei General Hospital were analyzed retrospectively. In which, ten lesions underwent seeds implantation guided by 3D print template (template group) and 17 lesions underwent free-hand traditional implantation (traditional group). All patients had been fixed as the position of operation and then performed CT scan. After preplan was designed, the 3D templates were printed in template group. Postplan was performed after the operation.The dose volume histogram, D90 was calculated. The D90 pre and post operation were collected and compared in each group. The difference of D90 and the percentage difference of D90 between pre and post operation were calculated by the formula D90d=D90post-D90pre, D90d%=(D90post-D90pre)/D90pre×100%, and compared the difference between two groups. Results: The mean D90 pre and post operation in template group were (92±26) and (93±27) Gy respectively, t=-0.749, P=0.473. The mean D90 pre and post operation in traditional group were (104±29) and (104±26) Gy respectively, t=-0.139, P=0.891. The difference of D90 in two groups were (3.1±2.4) and (10.0±8.7) Gy, Z=-2.5, P=0.012. The percentage difference of D90 in two groups were 3.1%±1.9% and 9.5%±7.9%, Compared with the traditional group, the template group had smaller fluctuations, and the difference was statistically significant (Z=-2.7, P=0.006) (all P<0.05). Conclusions: The dose parameters of 3D template guided seeds implantation between postplan and preplan are nearly consistent.3D template has good repeatability, which provides a theoretical basis for the popularization of 3D printing technology.
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Affiliation(s)
- Z Gao
- Department of Oncology, the Hebei General Hospital, Shijiazhuang 050051, China
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Zhao J, Méndez-Sánchez D, Ward JM, Hailes HC. Biomimetic Phosphate-Catalyzed Pictet-Spengler Reaction for the Synthesis of 1,1'-Disubstituted and Spiro-Tetrahydroisoquinoline Alkaloids. J Org Chem 2019; 84:7702-7710. [PMID: 31095375 PMCID: PMC7007230 DOI: 10.1021/acs.joc.9b00527] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
![]()
Tetrahydroisoquinoline (THIQ) alkaloids
are an important group
of compounds that exhibit a range of bioactivities. Here, a phosphate
buffer-catalyzed Pictet–Spengler reaction (PSR) using unreactive
ketone substrates is described. A variety of 1,1′-disubstituted
and spiro-tetrahydroisoquinoline alkaloids were readily prepared in
one-step and high yields, highlighting the general applicability of
this approach. This study features the role of phosphate in the aqueous-based
PSR and provides an atom-efficient, sustainable route to new THIQs.
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Affiliation(s)
- Jianxiong Zhao
- Department of Chemistry , University College London , Christopher Ingold Building, 20 Gordon Street , London WC1H 0AJ , U.K
| | - Daniel Méndez-Sánchez
- Department of Chemistry , University College London , Christopher Ingold Building, 20 Gordon Street , London WC1H 0AJ , U.K
| | - John M Ward
- Department of Biochemical Engineering , University College London , London WC1E 6BT , U.K
| | - Helen C Hailes
- Department of Chemistry , University College London , Christopher Ingold Building, 20 Gordon Street , London WC1H 0AJ , U.K
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Zhao JX, Jin X, Huang JJ, Yao Y, Yu LS, Fan YY. Time-dependent Expression and Distribution of AChE during the Skin Incised Wound Healing in Mice. Fa Yi Xue Za Zhi 2019; 35:143-148. [PMID: 31135106 DOI: 10.12116/j.issn.1004-5619.2019.02.003] [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] [Key Words] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Indexed: 11/30/2022]
Abstract
Abstract Objective To study the time-dependent expression and distribution of acetylcholinesterase (AChE) during skin incised wound healing in mice, and discuss its effect in wound healing as well as the feasibility of using it as a reference index for wound age estimation. Methods A total of 45 C57BL/KsJ mice were randomly divided into one control group and eight incised groups. The skin incised wound model was established in the incised groups with samples of skin wounds taken at 6 h, 12 h, 1 d, 3 d, 5 d, 7 d, 10 d and 14 d post-injury respectively, while the uninjured skin tissue was extracted in the control group. Expression and distribution of AChE in skin samples were detected by immunohistochemistry, double immunofluorescence and Western blotting. Results Immunohistochemistry results indicated that AChE was mainly detected in infiltrating polymorphonuclear cells (PMNs) 6 to 12 h post-injury. A large number of AChE-positive mononuclear cells (MNCs) were observed 1 to 3 d post-injury. The AChE-positive cells were mainly fibroblastic cells (FBCs) 5 to 14 d post-injury. The ratio of the AChE-positive cells increased initially 6 h post-injury, and reached the peak at 1 d post-injury. Double immunofluorescent staining showed that the majority of AChE-positive MNCs and FBCs expressed macrophage marker and myofibroblast marker, respectively. Western blotting results showed that the relative expression level of AChE in the incised group was higher than that in the control group averagely, reached the peak at 1 d post-injury, then reached a second peak at 7 d post-injury. Conclusion The expression of AChE is found in PMNs, macrophages and myofibroblast during skin wound healing, which indicates it might be involved in the adjustment of inflammatory response and fibrotic repair after injury. Moreover, combined use of various methods for the detection of the expression of AChE would provide reference for skin wound age estimation.
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Affiliation(s)
- J X Zhao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - X Jin
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J J Huang
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Yao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - L S Yu
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Y Fan
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
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Jin X, Zhao JX, Yao L, Huang JJ, Fan YY, Yu LS. Expression of Annexin A1 during Skin Incised Wound Healing in Mice. Fa Yi Xue Za Zhi 2019; 35:5-10. [PMID: 30896112 DOI: 10.12116/j.issn.1004-5619.2019.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the expression changes of annexin A1 (ANXA1) during the process of skin incision healing, and to explore its expression and function during skin injury repair. METHODS The skin injury model of mice was prepared, and skin tissues of the controls and the injured group at 6 h, 12 h, 1 d, 3 d, 5 d, 7 d, 10 d and 14 d after injuries were taken. The morphological changes of the wound were observed by hematoxylin-eosin (HE) staining, and the expression of ANXA1 was detected by immunohistochemistry (IHC) and Western blotting. RESULTS HE staining showed normal healing of skin wounds. IHC results revealed that ANXA1 was expressed in the epidermis, hair follicle, sebaceous gland and vascular endothelium. In the injured group, the expression of ANXA1 was enhanced in epidermis and skin appendages around the wound 6-12 h after injury, and ANXA1 was also highly expressed in neutrophils and a small number of mononuclear cells. ANXA1 was mainly positively expressed in monocytes, neovascular endothelial cells and fibroblasts, and small amount of fibroblasts at 1-3 d, 5-10 d, and 14 d after injury, respectively. Western blotting showed that, compared with the controls, the expression of ANXA1 was significantly increased at 6 h after injury, peaked at 1 d, and then decreased gradually in the injured group. CONCLUSIONS ANXA1 may be involved in the regulation of skin damage repair, with time-dependent expression during skin wound healing, and thus is expected to be a biological marker for inferring the wound formation time.
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Affiliation(s)
- X Jin
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J X Zhao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - L Yao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - J J Huang
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Y Y Fan
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - L S Yu
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Judicial Forensic Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.,Institute of Forensic Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
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Du Y, Jiang Y, Sun T, Zhao J, Huang B, Peng D, Wang F. Mechanically Excited Multicolor Luminescence in Lanthanide Ions. Adv Mater 2019; 31:e1807062. [PMID: 30589165 DOI: 10.1002/adma.201807062] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/30/2018] [Indexed: 05/27/2023]
Abstract
Mechanoluminescence (ML) featuring photon emission by mechanical stimuli is promising for applications such as stress sensing, display, and artificial skin. However, the progress of utilizing ML processes is constrained by the limited range of available ML emission spectra. Herein, a general strategy for expanding the emission of ML through the use of lanthanide emitters is reported. A lithium-assisted annealing method for effective incorporation of various lanthanide ions (e.g., Tb3+ , Eu3+ , Pr3+ , Sm3+ , Er3+ , Dy3+ , Ho3+ , Nd3+ , Tm3+ , and Yb3+ ) into CaZnOS crystals that are identified as one of the most efficient host materials for ML is developed. These doped CaZnOS crystals show efficient and tunable ML spanning full spectrum from violet to near infrared. The multicolor ML materials are used to create encrypted anticounterfeiting patterns, which produce spatially resolvable optical codes under single-point dynamic pressure of a ballpoint pen.
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Affiliation(s)
- Yangyang Du
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Yue Jiang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Tianying Sun
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Bolong Huang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Dengfeng Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
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Li XY, Zhao JX, Liu XY. [Diagnosis and treatment of antiphospholipid antibody-related recurrent spontaneous abortion and analysis of therapeutic drugs and pregnancy outcome in 75 patients with antiphospholipid syndrome]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:956-961. [PMID: 30562764] [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: 06/09/2023]
Abstract
Recurrent spontaneous abortion is one of the common complications in women of childbearing age during pregnancy. The immune factor accounts for a large proportion of many causes. Antiphospholipid antibody syndrome is the most common type of acquired thrombophilia disease. Autoimmune diseases that cause thrombosis and obstetric complications under the action of antibodies are also the most common type of immune-related recurrent abortion. At present, there is no unified opinion on the treatment of this disease, especially the treatment of immunoglobulins and other drugs like glucocorticoid. Here we reviewed the progress of diagnosis and treatment of antiphospholipid antibody-related recurrent abortions and retrospectively analyzed and summarized the drug regimens and pregnancy outcomes of this disease with pregnancy patients in our hospital. A total of 75 patients were included. According to their clinical manifestations and laboratory results, these patients were basically divided into two categories: classical antiphospholipid syndrome and non-classical antiphospholipid syndrome. The latter was further divided into serum-negative antiphospholipid syndrome and antiphospholipid antibody-related recurrent abortion patients based on their clinical manifestations and antiphospholipid antibody results. The patients were divided into four categories: aspirin + hydroxychloroquine, aspirin + low molecular weight heparin, aspirin + low molecular weight heparin + hydroxychloroquine, aspirin + hydroxychloroquine + low molecular weight heparin + low dose glucocorticoids. Among them, aspirin + hydroxychloroquine + low molecular weight heparin + low dose glucocorticoid treatment regimen was most commonly used. Most of the patients who received the above different treatment regimens achieved full-term infants, and a small number of patients had adverse pregnancy outcomes, such as premature delivery, placental abruption, eclampsia, and fetal malformation. And adverse pregnancy outcomes also occurred in this group. It might be related to the severity of the disease and the potential adverse effects of maternal fetal. However, further statistical analysis is needed for the risk factors affecting the pregnancy outcome of this part of patients.
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Affiliation(s)
- X Y Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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Yang ZJ, Yu HM, Liang YS, Zhao JX, Liu ZZ, Li HJ, Wang J, Zhang HT. [The effect of pre-operation (125)I seed activity measuring on dose accuracy]. Zhonghua Yi Xue Za Zhi 2018; 98:3336-3338. [PMID: 30440124 DOI: 10.3760/cma.j.issn.0376-2491.2018.41.009] [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] [Indexed: 06/09/2023]
Abstract
Objective: To measure the activity of (125)I seed and compare the dose difference of ten patients treated with seed implantation in pre-plan with actual seed activity and calibrate activity. Method: The activity of 100 seeds from company A and B was measured with a well-type ionization chamber 1 day before operation and named group A and B. The activity of two groups was compared and the error between actual and calibrate activity (22.2 MBq, group C) was calculated. Ten patients implanted with (125)I seeds from November 1 st to 30 th, 2017, solstice 30 were selected in Hebei General Hospital. Firstly, pre-plans were designed with 22.2 MBq, prescribed dose were 100-140 Gy. The dose parameters of 90% volume absorbed dose (D(90)), 150% volume fraction (V(150)) and 100% volume fraction (V(100)) were calculated. Then changed 22.2 MBq to actual activity of group A and B, calculated the dose parameters above again. Then dose parameters of D(90), V(150), V(100) in group C were compared with those in group A and B respectively. Result: The actual activity 1 day before the operation was(22.6±0.7)and(23.9±0.9)MBq in group A and B respectively. Compared with 22.2 MBq, the difference was statistically significant(t=5.7, P<0.05 and t=19.2, P<0.05), and the activity error of group B was greater than 5%. The D(90) of group A, B and C were (124.3±9.7) , (131.2±10.2) and (121.9±9.5) Gy respectively.The V(150) were 58.4%±9.4%, 63.7%±8.9% and 56.5%±9.2% respectively. The V(100) were 88.9%±5.0%, 92.0%±4.1%, 88.1%±5.2% respectively.The difference of D(90) between calibrate activity(group C) and actual activity(group A and B) were statistically significant (t=40.2, P<0.05 and t=40.3, P<0.05). The difference of V(150) between group C and group A and B were statistically significant (t=7.5, P<0.05 and t=24.7, P<0.05). The difference of V(100) between group C and group A and B were statistically significant (t=6.6, P<0.05 and t=7.3, P<0.05). Conclusion: There is difference between the actual activity and calibration activity. The difference affects the dose parameters in pre-plan.The seed activity should be measured before operation strictly and the pre-plan should be designed with the actual activity.
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Affiliation(s)
- Z J Yang
- Division I, Department of Oncology, Hebei General Hospital, Shijiazhuang 050000, China
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Wang J, Zhang L, Zhao J, Zhang Y, Liu Q, Tian C, Zhang Z, Liu J, Wang X. Corrigendum to “2-Arylthio-5-iodo pyrimidine derivatives as non-nucleoside HBV polymerase inhibitors” [Bioorg. Med. Chem. 26 (2018) 1573–1578]. Bioorg Med Chem 2018; 26:3859. [DOI: 10.1016/j.bmc.2018.06.014] [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: 10/14/2022]
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Wang J, Zhang L, Zhao J, Zhang Y, Liu Q, Tian C, Zhang Z, Liu J, Wang X. 2-Arylthio-5-iodo pyrimidine derivatives as non-nucleoside HBV polymerase inhibitors. Bioorg Med Chem 2018; 26:1573-1578. [PMID: 29459146 DOI: 10.1016/j.bmc.2018.02.003] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/31/2018] [Accepted: 02/02/2018] [Indexed: 11/16/2022]
Abstract
In this study, a series of 2-arylthio-5-iodo pyrimidine derivatives, as non-nucleoside hepatitis B virus inhibitors, were evaluated and firstly reported as potential anti-HBV agents. To probe the mechanism of active agents, DHBV polymerase was isolated and a non-radioisotopic assay was established for measuring HBV polymerase. The biological results demonstrated that 2-arylthio-5-iodo pyrimidine derivatives targeted HBV polymerase. In addition, pharmacophore models were constructed for future optimization of lead compounds. Further study will be performed for the development of non-nucleoside anti-HBV agents.
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Affiliation(s)
- Jie Wang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Liang Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Jianxiong Zhao
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Yu Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Qingchuan Liu
- Beijing Weijian Jiye Institute of Biotechnology, 100041, China
| | - Chao Tian
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Zhili Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Junyi Liu
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China.
| | - Xiaowei Wang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China.
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Shu CX, Gong D, Zhang LP, Zhao JX. [Progress on Determination and Analysis of Zopiclone in Biological Samples]. Fa Yi Xue Za Zhi 2018; 33:635-639. [PMID: 29441774 DOI: 10.3969/j.issn.1004-5619.2017.06.014] [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] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Indexed: 11/18/2022]
Abstract
As a new hypnotic, zopiclone is widely used in clinical treatment. There are many methods for determination of zopiclone, including spectrophotometry, chromatography and chromatography mass spectrum, etc. Present paper reviews different kinds of biological samples associated with zopiclone, extraction and purification methods, and determination and analysis methods, which aims to provide references for the relevant research and practice.
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Affiliation(s)
- C X Shu
- Suzhou Public Security Bureau, Suzhou 215131, China
| | - D Gong
- Suzhou Public Security Bureau, Suzhou 215131, China
| | - L P Zhang
- Institute of Forensic Science, Ministry of Public Security, Beijing 100038, China
| | - J X Zhao
- Suzhou Public Security Bureau, Suzhou 215131, China
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Zhao J, Lichman BR, Ward JM, Hailes HC. One-pot chemoenzymatic synthesis of trolline and tetrahydroisoquinoline analogues. Chem Commun (Camb) 2018; 54:1323-1326. [PMID: 29345260 PMCID: PMC5804477 DOI: 10.1039/c7cc08024g] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 11/30/2017] [Indexed: 01/21/2023]
Abstract
Chemoenzymatic reaction cascades can provide access to chiral compounds from low-cost starting materials in one pot. Here we describe one-pot asymmetric routes to tetrahydroisoquinoline alkaloids (THIAs) using the Pictet-Spenglerase norcoclaurine synthase (NCS) followed by a cyclisation, to give alkaloids with two new heterocyclic rings. These reactions operated with a high atom economy to generate THIAs in high yields.
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Affiliation(s)
- Jianxiong Zhao
- Department of Chemistry , University College London , Christopher Ingold Building, 20 Gordon Street , London , WC1H 0AJ , UK .
| | - Benjamin R. Lichman
- Department of Biochemical Engineering , University College London , Gower Street , London , WC1E 6BT , UK
| | - John M. Ward
- Department of Biochemical Engineering , University College London , Gower Street , London , WC1E 6BT , UK
| | - Helen C. Hailes
- Department of Chemistry , University College London , Christopher Ingold Building, 20 Gordon Street , London , WC1H 0AJ , UK .
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40
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Erdmann V, Lichman BR, Zhao J, Simon RC, Kroutil W, Ward JM, Hailes HC, Rother D. Enzymatic and Chemoenzymatic Three-Step Cascades for the Synthesis of Stereochemically Complementary Trisubstituted Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2017; 56:12503-12507. [PMID: 28727894 PMCID: PMC5658969 DOI: 10.1002/anie.201705855] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [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: 06/08/2017] [Indexed: 11/19/2022]
Abstract
Chemoenzymatic and enzymatic cascade reactions enable the synthesis of complex stereocomplementary 1,3,4‐trisubstituted tetrahydroisoquinolines (THIQs) with three chiral centers in a step‐efficient and selective manner without intermediate purification. The cascade employs inexpensive substrates (3‐hydroxybenzaldehyde and pyruvate), and involves a carboligation step, a subsequent transamination, and finally a Pictet–Spengler reaction with a carbonyl cosubstrate. Appropriate selection of the carboligase and transaminase enzymes enabled the biocatalytic formation of (1R,2S)‐metaraminol. Subsequent cyclization catalyzed either enzymatically by a norcoclaurine synthase or chemically by phosphate resulted in opposite stereoselectivities in the products at the C1 position, thus providing access to both orientations of the THIQ C1 substituent. This highlights the importance of selecting from both chemo‐ and biocatalysts for optimal results.
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Affiliation(s)
- Vanessa Erdmann
- IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | | | - Jianxiong Zhao
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Robert C Simon
- Roche-Diagnostics GmbH, DOZCBE, 82377, Penzberg, Germany
| | - Wolfgang Kroutil
- Department of Chemistry, University of Graz, 8010, Graz, Austria
| | - John M Ward
- Department of Biochemical Engineering, University College London, London, WC1E 6BT, UK
| | - Helen C Hailes
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Dörte Rother
- IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
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41
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Erdmann V, Lichman BR, Zhao J, Simon RC, Kroutil W, Ward JM, Hailes HC, Rother D. Enzymatic and Chemoenzymatic Three‐Step Cascades for the Synthesis of Stereochemically Complementary Trisubstituted Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705855] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vanessa Erdmann
- IBG-1: Biotechnology Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | | | - Jianxiong Zhao
- Department of Chemistry University College London London WC1H 0AJ UK
| | | | | | - John M. Ward
- Department of Biochemical Engineering University College London London WC1E 6BT UK
| | - Helen C. Hailes
- Department of Chemistry University College London London WC1H 0AJ UK
| | - Dörte Rother
- IBG-1: Biotechnology Forschungszentrum Jülich GmbH 52425 Jülich Germany
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Hong Q, Liu XM, Hang F, Zhao JX, Zhang H, Chen W. Screening of adjunct cultures and their application in ester formation in Camembert-type cheese. Food Microbiol 2017; 70:33-41. [PMID: 29173637 DOI: 10.1016/j.fm.2017.08.009] [Citation(s) in RCA: 16] [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: 08/17/2016] [Revised: 06/17/2017] [Accepted: 08/18/2017] [Indexed: 11/26/2022]
Abstract
The ethanol content and esterase and alcohol acyltransferase activities are the limiting factors in the synthesis of ethyl esters in Camembert-type cheeses. This study aimed to investigate the effects of alcohol, esterase and alcohol acyltransferase activities on ethyl ester formation in Camembert-type cheeses. Five experimental cheeses were prepared with three adjunct cultures with different enzyme activities and two levels of ethanol content (400 or 800 μg/g). The cheeses were aged for 4 weeks and analysed weekly for basic physicochemical, textural, volatile and sensory properties. The results showed that both the enzyme activity and ethanol content were limiting factors in the synthesis of ethyl esters in the Camembert-type cheeses. Variation in the esterase synthesis activity was observed among lactic acid bacteria, and the starter culture Lactococcus lactis MA 14 LYO distinguished itself through its high acidifying and esterase hydrolysis abilities. The addition of CCFM 12, a lactic acid bacteria strain with high esterase and alcohol acyltransferase activity, along with 400 or 800 μg/g of ethanol, notably enhanced the generation of ethyl esters and the corresponding fruity flavour, without causing dramatic changes in the basic physicochemical indices and microbial profile. In addition, cohesiveness was influenced by the addition of 400 and 800 μg/g of ethanol, and more resilience with 800 μg/g of ethanol had been found. The results showed that the addition of CCFM12 with 400 and 800 μg/g of ethanol may be applied in the production of Camembert cheese to enhance its fruity flavour.
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Affiliation(s)
- Q Hong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai 200436, PR China
| | - X M Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
| | - F Hang
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai 200436, PR China.
| | - J X Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - H Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - W Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology & Business University, Beijing 100048, PR China
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Zhang X, Zhao JX, Sun L, Liu XY. [Expression of CXCL16/CXCR6 in fibroblast-like synoviocytes in rheumatoid arthritis and its role in synoviocyte proliferation]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:663-668. [PMID: 28816285] [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: 06/07/2023]
Abstract
OBJECTIVE It has been found that serum CXCL16 concentration in rheumatoid arthritis (RA) patients are significantly higher than those in osteoarthritis (OA) and normal subjects, and are positively correlated with disease activity and bone erosion. However, how is CXCL16 involved in the pathogenesis of RA is unclear. To evaluate the expression of CXCL16 and its receptor CXCR6 in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) patients, and to explore the role of CXCL16 in the proliferation of RA-FLS. METHODS FLS were isolated from knee synovial tissues obtained from 8 patients of RA, 7 osteoarthritis (OA) and 3 normal controls. The diagnosis of RA was in line with the 1987 American Rheumatology Association (ACR) RA classification criteria, osteoarthritis met the 1996 ACR revised knee osteoarthritis classification criteria. Control synovium were obtained from trauma caused knee joint injury in healthy individuals who required surgery. Human knee FLS were cultured by tissue explants adherent method.FLS between passages 3 and 5 were used in the experiment. Expression of CXCL16 and its receptor CXCR6 were performed in Western blot analysis. FLS proliferation following stimulation with TNF-α and different concentrations of CXCL16 was examined by cell counting kit-8 (CCK-8). Expression of phosphorylated AKT (pAKT) in RA-FLS stimulated by CXCL16 was quantified by Western blot. Different concentrations of recombinant human CXCL16 were added to the culture medium of RA-FLS. After 48 h culture, supernantants were collected, and TNF-α, IL-6, RANKL and MMP3 in culture supernatants of RA-FLS were determined by enzyme-linked immunosorbent assays (ELISA) operated following the kit instructions. RESULTS Expression of CXCL16 and CXCR6 in RA-FLS was significantly higher than that of OA and controls (P<0.05), but no significant difference was found between OA-FLS and control FLS. Proliferation of RA-FLS was markedly up-regulated after stimulation of CXCL16 (P <0.05). In the case of the CXCL16 stimulated OA-FLS and control FLS, the FLS proliferation remained basically unchanged. Expression of phosphorylated AKT in RA-FLS increased remarkably in condition of CXCL16 (50,100, 200 μg/L) stimulation. The levels of IL-6 and RANKL in culture supernatants of RA-FLS were obviously increased under CXCL16 (200 μ g/L) stimulation, while TNF-α and MMP-3 levels in the culture supernatants remained unchanged after CXCL16 (200 μg/L) stimulation. CONCLUSION This study shows that the expression of CXCL16 and its receptor was highly elevated in RA-FLS. Recombinant CXCL16 promoted RA-FLS proliferation and activation in vitro. All these indicate that CXCL16 play an important role in the pathogenesis of RA, anti-CXCL16 treatment may help to relieve inflammation and bone damage of RA patients. However, due to the limitations of this study, the role of CXCL16 and its receptors in RA-FLS remains to be elucidated by further research.
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Affiliation(s)
- X Zhang
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China; Department of Rheumatology, Peking Union Medical Colledge, Beijing 100730, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - L Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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Lichman BR, Zhao J, Hailes HC, Ward JM. Enzyme catalysed Pictet-Spengler formation of chiral 1,1'-disubstituted- and spiro-tetrahydroisoquinolines. Nat Commun 2017; 8:14883. [PMID: 28368003 PMCID: PMC5382262 DOI: 10.1038/ncomms14883] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [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: 01/03/2017] [Accepted: 02/08/2017] [Indexed: 01/26/2023] Open
Abstract
The Pictet–Spengler reaction (PSR) involves the condensation and ring closure between a β-arylethylamine and a carbonyl compound. The combination of dopamine and ketones in a PSR leads to the formation of 1,1′-disubstituted tetrahydroisoquinolines (THIQs), structures that are challenging to synthesize and yet are present in a number of bioactive natural products and synthetic pharmaceuticals. Here we have discovered that norcoclaurine synthase from Thalictrum flavum (TfNCS) can catalyse the PSR between dopamine and unactivated ketones, thus facilitating the facile biocatalytic generation of 1,1′-disubstituted THIQs. Variants of TfNCS showing improved conversions have been identified and used to synthesize novel chiral 1,1′-disubstituted and spiro-THIQs. Enzyme catalysed PSRs with unactivated ketones are unprecedented, and, furthermore, there are no equivalent stereoselective chemical methods for these transformations. This discovery advances the utility of enzymes for the generation of diverse THIQs in vitro and in vivo. The Pictet-Spengler condensation of β-arylethylamine and carbonyl compounds is an important step in the synthesis of bioactive alkaloids. Here, the authors report a Pictet-Spengler reaction between dopamine and unactivated ketones catalysed by norcoclaurine synthase and its engineered variants.
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Affiliation(s)
- Benjamin R Lichman
- Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK
| | - Jianxiong Zhao
- Department of Chemistry, University College London, Christopher Ingold Building, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Helen C Hailes
- Department of Chemistry, University College London, Christopher Ingold Building, 20 Gordon Street, London, WC1H 0AJ, UK
| | - John M Ward
- Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK
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Sun L, An Z, Li CH, Liu R, Zhao JX, Liu XY. [Role of galectin-1 in regulation of umbilical cord mesenchymal stem cells on T cells of rheumatoid arthritis]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:964-969. [PMID: 27987498] [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: 06/06/2023]
Abstract
OBJECTIVE The therapeutic potential of umbilical cord mesenchymal stem cells (UC-MSCs) in rheumatoid arthritis (RA) has attracted more and more attention, because of it can suppress the various inflammatory effects of T cells. Galectin-1 is highly expressed in UC-MSCs, as the first lectin mediating the immunomodulatory effect of MSCs. Our study will investigate the effects of galectin-1 in regulation of UC-MSCs on rheumatoid arthritis T cells. METHODS Lentivirus transfected shRNA technique was used to knock down the expression of galectin-1 in UC-MSCs to construct UC-MSCs(Gal-1-). The effects of UC-MSCs and UC-MSCs(Gal-1-) on CD4+ T cells in RA patients were investigated by contact system, including negative control group (CD4+ T cells), positive control group [CD4+ T-phytohemagg lutinin (PHA)], UC-MSCs-CD4+ T cells co-culture group, UC-MSCs(control shRNA)-CD4+ T cells co-culture group, and UC-MSCs(Gal-1-)-CD4+ T cells co-culture group. The proliferation of CD4+ T cells was detected by MTS assay. The level of tumor necrosis factors α (TNF-α) in cells supernatant was detected by enzyme linked immunosorbent assay (ELISA). The effect of UC-MSCs on helper T cell (Th) subset was detected by flow cytometry. RESULTS In vitro, UC-MSCs were capable of inhibiting PHA induced proliferation of CD4+ T cells from RA patients, but UC-MSCs(Gal-1-) did not show the significant inhibitory effect. Galectin-1 affect the TNF-α level of CD4+ T cells regulated by UC-MSCs. UC-MSCs and UC-MSCs(control shRNA) significantly inhibited the expression of TNF-α in PHA-induced CD4+ T cells. However, UC-MSCs(Gal-1-) had no significant inhibitory effect. Furthermore, the Th1 cells were also significantly suppressed by UC-MSCs and UC-MSCs(control shRNA) (4.83%±1.37% and 5.13%±0.87%,P=0.012 and P=0.018). These was no significant difference in the proportion of the Th1 cells between the control group and UC-MSCs(Gal-1-) group (8.51%±2.04% and 6.41%±0.96%,P=0.101). The Th2 cells were protected after silence galectin-1 in UC-MSCs, whereas there was no significant difference. The proportion of Th17 was decreased by co-culture with UC-MSCs and UC-MSCs (control shRNA), but these was also no significant difference. CONCLUSION UC-MSCs can inhibit the proliferation and differentiation of CD4+ T cells from RA patients, but these effect declined after knocking down the expression of galectin-1. Galectin-1 maybe take part in the regulation of UC-MSCs on rheumatoid arthritis CD4+ T cells.
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Affiliation(s)
- L Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - Z An
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - C H Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - R Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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Yu RH, Zhao JX, Liu XY. [Role of hypoxia-inducible factor in the pathogenesis of rheumatoid arthritis]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:1095-1099. [PMID: 27987521] [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: 06/06/2023]
Abstract
Rheumatoid arthritis (RA) is a destructive chronic autoimmune disease characterized by synovium inflammation, cartilage destruction, bone erosion and the presence of autoantibodies. Hypoxia is a prominent micro-environmental feature in a range of disorders including RA. A combination of increased oxygen consumptionby inflamed resident cells and infiltrating immune cells along with a disrupted blood supply due to vascular dysfunction contribute to tissue hypoxia in RA. Hypoxia in turn regulates a number of key signaling pathways that help adaptation. The primary signaling pathway activated by hypoxia is the hypoxia-inducible factor (HIF) pathway. It has been shown that HIFs are highly expressed in the synovium of RA. HIFs mediate the pathogenesis of RA through inducing inflammation, angiogenesis, cell migration, and cartilage destruction, and inhibiting the apoptosis of synovial cells and inflammatory cells. HIF expressed in RA can be regulated in both oxygen-dependent and independent fashions, like inflammatory cytokines, leading to the aggravation of this disease. Considering the vital role of HIF in the pathogenesis of RA, we reviewed the new advances about hypoxia and RA. In this review, we firstly discussed the hypoxia-inducible factor and its regulation, and then, the pathologic role of hypoxia in RA, mainly elucidating the role of hypoxia in synovitis and cartilage destruction and immune cells. Finally, we provided evidence about the potential therapeutic target for treating RA.
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Affiliation(s)
- R H Yu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - J X Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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Wu D, Sun L, Li CH, Yang L, Zhao JX, Liu XY. [Significance of antibodies to the citrullinated glucose-6-phosphate isomerase peptides in rheumatoid arthritis]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:937-941. [PMID: 27987493] [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: 06/06/2023]
Abstract
OBJECTIVE To detect the anti-citrullinated glucose-6-phosphate isomerase (GPI) 70-88 peptide antibody (anti-C-GPI(70-88) antibody), anti-citrullinated GPI 435-453 peptide antibody (anti-C-GPI(435-453) antibody), anti-GPI 70-88 peptide antibody (anti-GPI(70-88) antibody) and anti-GPI 435-453 peptide antibody(anti-GPI(435-453) antibody) in the serum of rheumatoid arthritis (RA) patients, and examine the diagnostic values of the anti-C-GPI peptide antibodies in RA. METHODS The anti-C-GPI(70-88) antibody, anti-C-GPI(435-453) antibody, anti-GPI(70-88) antibody and anti-GPI(435-453) antibody were detected by enzyme-linked immunosorbent assay (ELISA) in 191 RA patients, 129 other rheumatic diseases and 74 healthy controls. The clinical and laboratory data of the patients with RA were collected, and the values of anti-C-GPI peptide antibodies in the diagnosis of RA and the relationships of anti-C-GPI peptide antibodies with the clinical and laboratory parameters analyzed. RESULTS (1) The mean titers of the anti-C-GPI(70-88) antibody and the anti-C-GPI(435-453) antibody in the RA patients (respectively, 68.71 ± 4.20 and 51.78 ± 3.13) were significantly higher than those with other rheumatic diseases and healthy individuals (P <0.05). However, the mean titers of the anti-GPI(70-88) antibody and anti-GPI(435-453) antibody in the RA patients were similar to those with other rheumatic diseases and healthy individuals. (2) The diagnostic sensitivity and specificity of the anti-C-GPI(70-88) antibody for RA were 41.88% and 84.50% respectively; and the diagnostic sensitivity and specificity of the anti-C-GPI(435-453) antibody for RA were 46.05% and 86.05% respectively. The sensitivity of combined detection of the two anti-C-GPI peptide antibodies was 50.79%, and the specificity was 81.40%. (3) The positive rates of the anti-C-GPI(70-88) antibody and the anti-C-GPI(435-453) antibody were 35% and 45% respectively in those patients with negative anti-cyclic citrullinated peptide antibody, anti-keratin antibody, and rheumatoid factor. (4) There was no significant difference in clinical and laboratory indicators between the anti-C-GPI(70-88) antibody or anti-C-GPI(435-453) antibody positive group and negative group. CONCLUSION The anti-C-GPI(70-88) antibody and anti-C-GPI(435-453) antibody can be detected in the serum of RA patients, and C-GPI may be involved in the pathogenesis of RA. There is a certain diagnostic significance for the sera-negative RA.
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Affiliation(s)
- D Wu
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
| | - L Sun
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
| | - C H Li
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
| | - L Yang
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
| | - J X Zhao
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Liu
- Department of Rheumatology & Immunology, Peking University Third Hospital, Beijing 100191, China
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Zhao JX, Liu XD, Li K, Liu WZ, Ren YS, Zhang JX. Different dietary energy intake affects skeletal muscle development through an Akt-dependent pathway in Dorper × Small Thin-Tailed crossbred ewe lambs. Domest Anim Endocrinol 2016; 57:63-70. [PMID: 27565232 DOI: 10.1016/j.domaniend.2016.05.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 02/06/2016] [Revised: 05/19/2016] [Accepted: 05/19/2016] [Indexed: 12/25/2022]
Abstract
The objective of this experiment was to investigate the mechanisms through which different levels of dietary energy affect postnatal skeletal muscle development in ewe lambs. Twelve Dorper × Small Thin-Tailed crossbred ewe lambs (100 d of age; 20 ± 0.5 kg BW) were selected randomly and divided into 2 groups in a completely randomized design. Animals were offered identical diets at 100% or 65% of ad libitum intake. Lambs were euthanized when BW in the ad libitum group reached 35 kg and the semitendinosus muscle was sampled. Final BW and skeletal muscle weight were decreased (P < 0.01) by feed restriction. Both muscle fiber size distribution and myofibril cross-sectional area were altered by feed restriction. Insulin-like growth factor 1 (IGF-1) messenger RNA (mRNA) content was decreased (P < 0.05) when lambs were underfed, whereas no difference for IGF-2 mRNA expression was observed (P > 0.05). Feed restriction altered phosphor-Akt protein abundance (P < 0.01). Moreover, the mammalian target of rapamycin (mTOR) pathway was inhibited by feed restriction, which was associated with decreased phosphor-mTOR, phosphorylated eukaryotic initiation factor 4E binding protein 1 (phosphor-4EBP1), and phosphorylated ribosomal protein S6 kinase (phosphor-S6K). Both mRNA expression of myostatin and its protein content were elevated in feed-restricted ewe lambs (P < 0.05). In addition, mRNA expression of both muscle RING finger 1 and muscle atrophy F-box was increased when ewe lambs were underfed. In summary, feed restriction in young growing ewe lambs attenuates skeletal muscle hypertrophy by inhibiting protein synthesis and increasing protein degradation, which may act through the Akt-dependent pathway.
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Affiliation(s)
- J X Zhao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China
| | - X D Liu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China
| | - K Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China
| | - W Z Liu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China
| | - Y S Ren
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China
| | - J X Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, P. R. China.
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Zhao JX, Chen XH, Li JL, Pan J, Tan YH, Xu ZF, Ren FG, Zhang YF, Xu J, Li MQ, Li J, Zhang N, Chang JM, Wang XJ, Wang HW. [Frequency and clinical features of ASXL2 gene mutation in acute myeloid leukemia patients with AML1- ETO fusion gene positive]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:676-81. [PMID: 27587249 PMCID: PMC7348531 DOI: 10.3760/cma.j.issn.0253-2727.2016.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
目的 探讨伴AML1-ETO融合基因的急性髓系白血病(AML)患者ASXL2基因突变情况、突变阳性患者临床特征及ASXL2基因突变与c-kit基因突变的关系。 方法 采用PCR扩增产物片段直接测序分析法,检测59例伴AML1-ETO融合基因初发AML患者ASXL2基因第11、12外显子编码区突变情况,比较ASXL2基因突变阳性和阴性组患者的临床特征、生存及c-kit基因突变情况。 结果 59例患者中7例存在ASXL2突变,突变率为11.9%。ASXL2基因突变阳性组患者初诊时外周血红蛋白浓度中位数为56.2(38.0~72.0)g/L,显著低于ASXL2突变阴性组患者的69.0(37.2~154.0)g/L,差异有统计学意义(P=0.038);外周血WBC、PLT、嗜酸粒细胞比例、骨髓原始细胞比例与ASXL2突变阴性组相比,差异均无统计学意义(P值均>0.05)。两组均未见肝、脾、中枢神经系统浸润;淋巴结不同程度肿大,但ASXL2基因突变阳性、阴性两组间差异无统计学意义(P=0.859)。免疫表型分析显示:ASXL2基因突变阳性组CD33表达显著低于阴性组(P=0.033);两组患者均未表达cCD3,CD117、cMPO、HLA-DR、CD34、CD38、CD13、CD44、CD15、CD64、CD11b、CD56、CD19、cCD79a、CD7两组表达差异均无统计学意义(P值均>0.05)。ASXL2基因突变阳性与阴性组患者总缓解率、总生存时间差异均无统计学意义(P值分别为0.577、0.631)。两组c-kit基因突变检出率分别为14.3%和29.4%,差异无统计学意义(P=0.697)。 结论 该组伴AML1-ETO融合基因AML患者ASXL2基因突变率为11.9%。ASXL2突变阳性患者外周血红蛋白浓度、CD33表达方面呈现一定的临床特征。ASXL2基因突变与c-kit基因变突可能没有特定的关联性。
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Affiliation(s)
- J X Zhao
- Department of Hematology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
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Pan J, Tan YH, Zhao JX, Chen XH, Xu ZF, Xu J, Chang JM, Xue F, Zhang N, Ren FG, Zhang YF, Wang XJ, Wang HW. [Discovery of a novel spliceosome of ABL gene (ABL(Δexon7+35INS)) and its association with TKIs resistance in chronic myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:503-6. [PMID: 27431076 PMCID: PMC7348335 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore whether the ABL(Δexon7) and ABL(35INS) spliceosome contributed to TKIs resistance. METHODS Screening ABL(Δexon7) and ABL(35INS) in 74 normal people and 76 CML patients (53 patients in remission and 23 patients with TKIs resistance) by using polyacrylamide gel electrophoresis combined with cloning sequencing. RESULTS A novel spliceosome ABL(Δexon7+ 35INS) (ABL(Δexon7) and ABL(3)5INS existed at the same time) was identified and the mutation was detected in 8 (10.8%) of 74 normal people, 4 (7.5%) of 53 remission patients and 2 (8.7%) of 23 resistant patients. While 47 (63.5%) cases expressed ABL(Δexon7) and 8 (10.8% ) cases expressed ABL(35INS) in 74 healthy people, 30 (56.6%) cases expressed ABL(Δexon7) and 5 (9.4% ) cases expressed ABL(35INS) in 53 remission patients, 12 (52.2%) cases expressed ABL(Δexon7) and 3(13.0%) cases expressed ABL(35INS) in 23 resistant patients. Three kinds of spliceosome in all groups had no statistical difference. CONCLUSION ABL(Δexon7+ 35INS), ABL(Δexon7) and ABL(35INS) may be not uncommon in ABL gene and were unrelated to resistance in CML with TKIs treatment. ABL(35INS) were often accompanying with exon 7 deletion.
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Affiliation(s)
- J Pan
- Department of Hematology, the Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Molecular Diagnosis and Treatment of Blood Diseases, Taiyuan 030001, China
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