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Wei SC, Liu C, Chen M, Cai YH, Wu XH, Chen ML, Zhang JX, Xiang D, Liu ZC, Jiang CQ, Shi J, Wu KC, Dong WG. [Effects of biologics on psychological status and quality of life in patients with inflammatory bowel disease: a multicenter study]. Zhonghua Nei Ke Za Zhi 2023; 62:1000-1006. [PMID: 37528039 DOI: 10.3760/cma.j.cn112138-20220818-00603] [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: 08/03/2023]
Abstract
Objective: To investigate the effects of biologics on psychological status and quality of life in patients with inflammatory bowel disease (IBD). Methods: A cross-sectional survey was conducted in 42 hospitals in 22 provinces (autonomous regions and municipalities directly under the central government) from September 2021 to May 2022. General clinical information and the use of biologics were obtained from adult patients diagnosed with IBD who voluntarily participated in the study. Psychological status was evaluated using the Generalized Anxiety Disorder (GAD-7), Patient Health Questionnaire-9 (PHQ-9), Pittsburgh Sleep Quality Index (PSQI), and Inflammatory Bowel Disease Questionnaire (IBDQ) assessment tools. Counts were analyzed via the Chi-square test, and datasets that were not normally distributed were analyzed via nonparametric tests. P<0.05 was considered statistically significant. Results: A total of 2 478 valid questionnaires were collected. The GAD-7 score of the biologics group was significantly lower than that of the non-use group [6 (2, 9) vs. 7 (3, 10), Z=-3.49, P<0.001]. IBDQ scores [183 (158, 204) vs. 178 (152, 198), Z=-4.11, P<0.001], intestinal symptom scores [61 (52, 67) vs. 58 (49, 65), Z=-5.41, P<0.001], systemic symptom scores [28 (24, 32) vs. 27 (23, 31), Z=-2.37, P=0.018], emotional ability scores [69 (58, 77) vs. 67 (56, 75), Z=-3.58, P<0.001] and social ability scores [26 (22, 29) vs. 25 (22, 29), Z=-2.52, P=0.012] in the biologics group were significantly higher than in the non-use group. GAD-7 scores [5 (2, 9) vs. 6 (3, 10), Z=-3.50, P<0.001] and PSQI scores [6 (4, 9) vs. 6 (4, 9), Z=-2.55, P=0.011] were significantly lower in the group using infliximab than in the group not using it. IBDQ scores were significantly higher in patients using vedolizumab than in those not using it [186 (159, 205) vs. 181 (155, 201), Z=-2.32, P=0.021] and were also significantly higher in the group treated with adalimumab than in the group not treated with adalimumab [187 (159, 209) vs. 181 (155, 201), Z=-2.16, P=0.030]. However, ustekinumab had no significant effect on any of the scores. Conclusion: The use of biologics is strongly associated with improvements in anxiety status and quality of life in IBD patients.
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Affiliation(s)
- S C Wei
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - C Liu
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China
| | - M Chen
- Department of Gastroenterology, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y H Cai
- Department of Psychiatry, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - X H Wu
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China
| | - M L Chen
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China
| | - J X Zhang
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China
| | - D Xiang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Z C Liu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - C Q Jiang
- Department of Clinical Psychology, Beijing Anding Hospital, Capital Medical University, Beijing l00088, China
| | - J Shi
- Department of Medical Psychology, Chinese People's Liberation Army Rocket Army Characteristic Medical Center, Beijing l00088, China
| | - K C Wu
- Department of Gastroenterology, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - W G Dong
- Department of Gastroenterology,Renmin Hospital of Wuhan University,Wuhan 430060,China
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Wang X, Zhang H, Chen X, Wu C, Ding K, Sun G, Luo Y, Xiang D. Overcoming tumor microenvironment obstacles: Current approaches for boosting nanodrug delivery. Acta Biomater 2023; 166:42-68. [PMID: 37257574 DOI: 10.1016/j.actbio.2023.05.043] [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: 02/10/2023] [Revised: 05/12/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
In order to achieve targeted delivery of anticancer drugs, efficacy improvement, and side effect reduction, various types of nanoparticles are employed. However, their therapeutic effects are not ideal. This phenomenon is caused by tumor microenvironment abnormalities such as abnormal blood vessels, elevated interstitial fluid pressure, and dense extracellular matrix that affect nanoparticle penetration into the tumor's interstitium. Furthermore, nanoparticle properties including size, charge, and shape affect nanoparticle transport into tumors. This review comprehensively goes over the factors hindering nanoparticle penetration into tumors and describes methods for improving nanoparticle distribution by remodeling the tumor microenvironment and optimizing nanoparticle physicochemical properties. Finally, a critical analysis of future development of nanodrug delivery in oncology is further discussed. STATEMENT OF SIGNIFICANCE: This article reviews the factors that hinder the distribution of nanoparticles in tumors, and describes existing methods and approaches for improving the tumor accumulation from the aspects of remodeling the tumor microenvironment and optimizing the properties of nanoparticles. The description of the existing methods and approaches is followed by highlighting their advantages and disadvantages and put forward possible directions for the future researches. At last, the challenges of improving tumor accumulation in nanomedicines design were also discussed. This review will be of great interest to the broad readers who are committed to delivering nanomedicine for cancer treatment.
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Affiliation(s)
- Xiaohui Wang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Hong Zhang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong, 250033, China
| | - Xiaohui Chen
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Chunrong Wu
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Ke Ding
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Guiyin Sun
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China.
| | - Yang Luo
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China.
| | - Debing Xiang
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China.
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Zhang Z, Lian X, Yue H, Xiang D, Niu Z. Identification and validation of the model consisting of DDX49, EGFR, and T-stage as a possible risk factor for lymph node metastasis in patients with lung cancer. Thorac Cancer 2023. [PMID: 37096455 DOI: 10.1111/1759-7714.14892] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
INTRODUCTION The lymph node metastasis stage of lung cancer is an important decisive factor in the need for postoperative adjuvant treatment and the difference between stage IIIa and stage IIIB that is the necessary information to distinguish whether surgery can be performed or not. The specificity of the clinical diagnosis of lung cancer with lymph node metastasis cannot meet the requirements of preoperative evaluation of surgical indications and prediction of surgical removal range in lung cancer. METHODS This was an early experimental laboratory trial. The model identification data included the RNA sequence data of 10 patients from our clinical data and 188 patients with lung cancer from The Cancer Genome Atlas dataset. The model development and validation data consisted of RNA sequence data for 537 cases from the Gene Expression Omnibus dataset. We explore the predictive value of the model on two independent clinical data. RESULTS A higher specificity of diagnostic model for patients with lung cancer with lymph node metastases consisted of DDX49, EGFR, and tumor stage (T-stage), which were the independent predictive factors. The area under the curve value, specificity, and sensitivity for predicting lymph node metastases were 0.835, 70.4%, and 78.9% at RNA expression level in the training group, and 0.681, 73.2%, and 75.7% at RNA expression level in the validation group as shown as in result part. To verify the predictive performance of the combined model for lymph node metastases, we downloaded the GSE30219 data set (n = 291) and the GSE31210 data set (n = 246) from the Gene Expression Omnibus (GEO) database as the training group and validation group, respectively. In addition, the model had a higher specificity for predicting lymph node metastases in independent tissue samples. CONCLUSIONS Determination of DDX49, EGFR, and T-stage could form a novel prediction model to improve the diagnostic efficacy of lymph node metastasis in clinical application.
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Affiliation(s)
- Zhimin Zhang
- Department of Tumor Blood, Chongqing University Jiangjin Hospital, Chongqing, China
- Thoracic Surgery, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Xiaojuan Lian
- Department of Tumor Blood, Chongqing University Jiangjin Hospital, Chongqing, China
| | - Hongxu Yue
- Thoracic Surgery, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Debing Xiang
- Department of Tumor Blood, Chongqing University Jiangjin Hospital, Chongqing, China
| | - Zhongxi Niu
- Thoracic Surgery, The Third Medical Center of PLA General Hospital, Beijing, China
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Wu C, Sun G, Wang F, Chen J, Zhan F, Lian X, Wang J, Weng F, Li B, Tang W, Quan J, Xiang D. DYRK2 downregulation in colorectal cancer leads to epithelial-mesenchymal transition induction and chemoresistance. Sci Rep 2022; 12:22496. [PMID: 36577753 PMCID: PMC9797492 DOI: 10.1038/s41598-022-25053-0] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/23/2022] [Indexed: 12/29/2022] Open
Abstract
Colorectal cancer (CRC) is among the most prominent causes of cancer-associated mortality in the world, with chemoresistance representing one of the leading causes of treatment failure. However, the mechanisms governing such chemoresistance remain incompletely understood. In this study, the role of DYRK2 as a mediator of CRC cell drug resistance and the associated molecular mechanisms were assessed by evaluating human tumor tissue samples, CRC cell lines, and animal model systems. Initial analyses of The Cancer Genome Atlas database and clinical tissue microarrays revealed significant DYRK2 downregulation in CRC in a manner correlated with poor prognosis. We further generated LoVo CRC cells that were resistant to the chemotherapeutic drug 5-FU, and found that such chemoresistance was associated with the downregulation of DYRK2 and a more aggressive mesenchymal phenotype. When DYRK2 was overexpressed in these cells, their proliferative, migratory, and invasive activities were reduced and they were more prone to apoptotic death. DYRK2 overexpression was also associated with enhanced chemosensitivity and the inhibition of epithelial-mesenchymal transition (EMT) induction in these LoVo 5-FUR cells. Co-immunoprecipitation assays revealed that DYRK2 bound to Twist and promoted its proteasomal degradation. In vivo studies further confirmed that the overexpression of DYRK2 inhibited human CRC xenograft tumor growth with concomitant Twist downregulation. Overall, these results thus highlight DYRK2 as a promising therapeutic target in CRC worthy of further investigation.
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Affiliation(s)
- Chunrong Wu
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Guiyin Sun
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Fan Wang
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Jiangyan Chen
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Fangbiao Zhan
- grid.190737.b0000 0001 0154 0904Department of Orthopedics, Chongqing University, Three Gorges Hospital, Wanzhou, Chongqing, 404000 China
| | - Xiaojuan Lian
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Jie Wang
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Fanbin Weng
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Bo Li
- grid.190737.b0000 0001 0154 0904Department of Cardiology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China
| | - Weijun Tang
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Jin Quan
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
| | - Debing Xiang
- grid.190737.b0000 0001 0154 0904Department of Oncology, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 402260 China ,grid.452506.0Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, 402260 China
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Ni H, Xie S, Xiang D, Shia W, Chen G, Xiang B. A Novel Bimetal Cu–Fe Nano-Silica Catalyst Synthesis by Supercritical Method and Its High Catalytic Activity for Phenol Hydroxylation. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120441] [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: 02/11/2023]
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Long S, Wang J, Weng F, Pei Z, Zhou S, Sun G, Xiang D. ECM1 regulates the resistance of colorectal cancer to 5-FU treatment by modulating apoptotic cell death and epithelial-mesenchymal transition induction. Front Pharmacol 2022; 13:1005915. [PMID: 36408224 PMCID: PMC9666402 DOI: 10.3389/fphar.2022.1005915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/19/2022] [Indexed: 01/25/2023] Open
Abstract
5-Fluorouracil (5-FU) chemoresistance is a persistent impediment to the efficient treatment of many types of cancer, yet the molecular mechanisms underlying such resistance remain incompletely understood. Here we found CRC patients resistant to 5-FU treatment exhibited increased extracellular matrix protein 1 (ECM1) expression compared to CRC patients sensitive to this chemotherapeutic agent, and higher levels of ECM1 expression were correlated significantly with shorter overall survival and disease-free survival. 5-FU resistant HCT15 (HCT15/FU) cells expressed significantly higher levels of ECM1 relative to parental HCT15 cells. Changes in ECM1 expression altered the ability of both parental and HCT15/FU cells to tolerate the medication in vitro and in vivo via processes associated with apoptosis and EMT induction. From a mechanistic perspective, knocking down and overexpressing ECM1 in HCT15/FU and HCT15 cell lines inhibited and activated PI3K/AKT/GSK3β signaling, respectively. Accordingly, 5-FU-induced apoptotic activity and EMT phenotype changes were affected by treatment with PI3K/AKT agonists and inhibitors. Together, these data support a model wherein ECM1 regulates CRC resistance to 5-FU via PI3K/AKT/GSK3β pathway-mediated modulation of apoptotic resistance and EMT induction, highlighting ECM1 as a promising target for therapeutic intervention for efforts aimed at overcoming chemoresistance in CRC patients.
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Affiliation(s)
- Sirui Long
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Jie Wang
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Fanbin Weng
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Zhigang Pei
- Department of Pathology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Pathology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Shixian Zhou
- Department of Pathology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Pathology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Guiyin Sun
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China,*Correspondence: Guiyin Sun, ; Debing Xiang,
| | - Debing Xiang
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China,Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China,*Correspondence: Guiyin Sun, ; Debing Xiang,
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Song J, Mavraganis I, Shen W, Yang H, Cram D, Xiang D, Patterson N, Zou J. Transcriptome dissection of candidate genes associated with lentil seed quality traits. Plant Biol (Stuttg) 2022; 24:815-826. [PMID: 35395134 DOI: 10.1111/plb.13426] [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] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Lentils provide a rich plant-based protein source and staple food in many parts of the world. Despite numerous nutritional benefits, lentil seeds also possess undesirable elements, such as anti-nutritional factors. Understanding the genetic networks of seed metabolism is of great importance for improving the seed nutritional profile. We applied RNA sequencing analysis to survey the transcriptome of developing lentil seeds and compared this with that of the pod shells and leaves. In total, we identified 2622 genes differentially expressed among the tissues examined. Genes preferentially expressed in seeds were enriched in the Gene Ontology (GO) terms associated with development, nitrogen and carbon (N/C) metabolism and lipid synthesis. We further categorized seed preferentially expressed genes based on their involvement in storage protein production, starch accumulation, lipid and suberin metabolism, phytate, saponin and phenylpropanoid biosynthesis. The availability of transcript profile datasets on lentil seed metabolism and a roadmap of candidate genes presented here will be of great value for breeding strategies towards further improvement of lentil seed quality traits.
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Affiliation(s)
- J Song
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - I Mavraganis
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - W Shen
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - H Yang
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - D Cram
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - D Xiang
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - N Patterson
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
| | - J Zou
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, Saskatchewan, Canada
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Long S, Wang J, Weng F, Xiang D, Sun G. Extracellular Matrix Protein 1 Regulates Colorectal Cancer Cell Proliferative, Migratory, Invasive and Epithelial-Mesenchymal Transition Activities Through the PI3K/AKT/GSK3β/Snail Signaling Axis. Front Oncol 2022; 12:889159. [PMID: 35574325 PMCID: PMC9093678 DOI: 10.3389/fonc.2022.889159] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 03/30/2022] [Indexed: 12/24/2022] Open
Abstract
In prior reports, extracellular matrix protein 1 (ECM1) upregulation has been reported in colorectal cancer (CRC) patient tumor tissues, and has been suggested to be related to the metastatic progression of CRC, although the underlying mechanisms have yet to be clarified. In this study, we found that ECM1 was overexpressed in both CRC tissues and cell lines. Upregulation of ECM1 was correlated with tumor size, lymph node status and TNM stage in CRC patients. Knocking down ECM1 suppressed CRC cell growth, migration and invasion, in addition to reducing the expression of Vimentin and increasing E-cadherin expression. The overexpression of ECM1, in contrast, yielded the opposite phenotypic outcomes while also promoting the expression of p-AKT, p-GSK3β, and Snail, which were downregulated when ECM1 was knocked down. Treatment with LY294002 and 740 Y-P reversed the impact upregulation and downregulation of ECM1 on CRC cell metastasis and associated EMT induction. In vivo analyses confirmed that ECM1 overexpression was able to enhance EMT induction and CRC tumor progression. In conclusion, ECM1 influences CRC development and progression in an oncogenic manner, and regulates CRC metastasis and EMT processes via the PI3K/AKT/GSK3β/Snail signaling axis.
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Affiliation(s)
- Sirui Long
- Departments of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China.,Departments of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Jie Wang
- Departments of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China.,Departments of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Fanbin Weng
- Departments of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China.,Departments of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Debing Xiang
- Departments of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China.,Departments of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Guiyin Sun
- Departments of Oncology, Chongqing University Jiangjin Hospital, Chongqing, China.,Departments of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
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Huang L, Chen J, Quan J, Xiang D. Rosmarinic acid inhibits proliferation and migration, promotes apoptosis and enhances cisplatin sensitivity of melanoma cells through inhibiting ADAM17/EGFR/AKT/GSK3β axis. Bioengineered 2021; 12:3065-3076. [PMID: 34224305 PMCID: PMC8806498 DOI: 10.1080/21655979.2021.1941699] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 02/06/2023] Open
Abstract
Rosmarinic acid (RA), a naturally occurring polyphenolic compound, exerts multiple biological properties including anti-cancer. The metalloprotease, a disintegrin and metalloproteinase 17 (ADAM17), can activate ligands of the epidermal growth factor receptor (EGFR) and contribute to tumor progression. We aimed to investigate whether RA could exhibit anti-cancer effects in melanoma cells through down-regulating ADAM17. The human melanoma A375 cells were exposed to RA, then cell viability, migration, invasion, apoptosis, melanin content and the expression of ADAM17/EGFR/AKT/GSK3β were evaluated. The viability of cells exposed to RA in the presence of cisplatin (Cis) was measured by CCK-8. Cells were overexpressed with ADAM17 in the absence or presence of RA and ADAM17 inhibitor (TACE prodomain; TPD) co-treatment, then the above cellular processes were also observed. Results showed that A375 cells treated with RA showed significant lower cell viability, proliferation, migrative and invasive abilities, melanin content and expression of related proteins including MMP2 and MMP9, compared with normal cells. RA enhanced the ratio of TUINEL-positive cells, the expression of pro-apoptotic proteins, but reduced Bcl-2 expression. RA co-treatment increased the inhibitory effect of Cis on cell viability. RA inhibited the expression of ADAM17/EGFR/AKT/GSK3β, which was further suppressed by TPD. Moreover, ADAM17 overexpression blocked all the effects of RA whereas TPD treatment generated an opposite function. In conclusion, RA exerted obvious inhibitory effect on melanoma cell proliferation, migration and invasion, but promotive effect on cells apoptosis. Addition, the showing of this characteristic of RA may rely on inhibiting the expression of ADAM17/EGFR/AKT/GSK3β axis.
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Affiliation(s)
- Lin Huang
- Department of Dermatology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Jiangyan Chen
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Jin Quan
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Debing Xiang
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
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Zhang Y, Xiang D, Alejok N. Coping with COVID-19 in United Nations peacekeeping field hospitals: increased workload and mental stress for military healthcare providers. BMJ Mil Health 2021; 167:229-233. [PMID: 33177148 PMCID: PMC7661351 DOI: 10.1136/bmjmilitary-2020-001642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 11/26/2022]
Abstract
INTRODUCTION This study aimed to explore the impact of COVID-19 on the United Nations peacekeeping field hospitals where medical supply and manpower are extremely insufficient. METHODS A level II hospital was deployed in Wau, South Sudan, as the regional referral centre of the United Nations Mission in South Sudan (UNMISS). It had a total strength of 63 personnel with 47 medical staff (average age 38.3±8.0 years, 33 men). A new 'appointment-triage-disinfection' work pattern was adopted to cope with the COVID-19 outbreak in the mission. Data on medical service statistics and workload before/after the outbreak were collected and compared. The mental health of staff was analysed from the quarterly psychological survey, including Perceived Stress Scale (PSS)-10, Generalised Anxiety Disorder (GAD)-7 and Patient Health Questionnaire (PHQ)-9. RESULTS The number of outpatients decreased slightly after the COVID-19 outbreak (41.9±11.9 to 37.6±11.8 per week, p=0.49), whereas the weekly hospital length of stay of inpatients increased significantly (0.4±1.0 to 3.1±3.9 days, p=0.02). Total weekly working hours increased from 1884.9±34.1 to 2023.5±67.3 hours (p<0.001). Elevated mental stress (PSS-10: 4.3±2.4 in February to 7.5±3.9 in May, p<0.001; GAD-7: 4.0±2.3 to 9.4±4.0, p<0.001; PHQ-9: 2.1±1.2 to 3.2±2.4, p<0.001) was documented among healthcare providers after the outbreak. The threat of COVID-19 infection, delay in rotation and family-related concerns constituted the main stressors. CONCLUSION COVID-19 imposes a huge pressure on peacekeeping field hospitals. Increased workload and mental stress among frontline healthcare providers deserve the attention of UNMISS officials. Facilitating the rotation of the medical staff might potentially improve the operational readiness of the hospital by bringing in well-trained personnel and sufficient medical supplies.
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Affiliation(s)
- Yongxue Zhang
- Department of Surgery, Handan Medical Center, Bethune International Peace Hospital, Handan, China
- Chinese Level II Hospital, Wau Field Office, Sector West, United Nations Mission in South Sudan (UNMISS), Wau, South Sudan
| | - D Xiang
- Department of Neurology, Handan Medical Center, Bethune International Peace Hospital, Handan, China
| | - N Alejok
- Level I Clinic, Wau Field Office, United Nations Mission in South Sudan (UNMISS), Wau, South Sudan
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Wu C, Liu X, Li B, Sun G, Peng C, Xiang D. miR‑451 suppresses the malignant characteristics of colorectal cancer via targeting SAMD4B. Mol Med Rep 2021; 24:557. [PMID: 34109425 PMCID: PMC8188639 DOI: 10.3892/mmr.2021.12196] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 03/23/2021] [Indexed: 02/07/2023] Open
Abstract
Cancer metastasis and recurrence are major causes of poor survival in patients with colorectal cancer (CRC). Therefore, the biological behavior of microRNA (miR)‑451 in CRC deserves further investigation. Reverse transcription‑quantitative PCR was applied to measure the relative expression of miR‑451 in blood serum specimens from patients with CRC and CRC cells. In vitro, HCT116 cells were transfected with miR‑451 mimics, a miR‑451 inhibitor, or SAMD4B plasmids. Proliferation, migration and apoptosis were measured using CCK‑8, Transwell assays and flow cytometry, respectively. Luciferase reporter assay was used to identify targets of miR‑451 and western blotting performed to explore the internal mechanisms of miR‑451 regulation. In vivo, the effect of miR‑451 and SAMD4B plasmids on tumor growth was analyzed using a nude mouse xenograft model. Results indicated that serum miR‑451 expression was lower in patients with CRC compared with healthy controls. Patients with elevated expression of miR‑451 had longer survival times compared with those with low expression. Overexpression of miR‑451 inhibited proliferation and migration, promoted apoptosis and enhanced the sensitivity of CRC cells to chemotherapy. SAMD4B was identified as a direct target of miR‑451 using miRNA target prediction programs and dual luciferase reporter assay validated the binding site of miR‑451 in the 3‑'UTR region of SAMD4B. Further studies confirmed that miR‑451 inhibited CRC progression via targeting SAMD4B. Results indicated that miR‑451 is essential for blocking tumor growth via targeting SAMD4B in vivo and in vitro. The miR‑451/SAMD4B axis may serve as a novel therapeutic target in patients with CRC.
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Affiliation(s)
- Chunrong Wu
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
| | - Xiaohu Liu
- Department of Gastrointestinal Surgery, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
| | - Bo Li
- Department of Cardiology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
| | - Guiyin Sun
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
| | - Chunfang Peng
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
| | - Debing Xiang
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, P.R. China
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Abstract
Melanoma is one of the most aggressive cancers with poor overall survival. To date, there are still few effective methods for the treatment of melanoma. TRIM14 was previously reported to be an important oncogene in many tumors. Nevertheless, the roles of TRIM14 in melanoma remain unknown. In this study, we found that TRIM14 was abnormally upregulated in melanoma cell lines. Knockdown of TRIM14 suppressed melanoma cell proliferation, migration, invasion, epithelial-mesenchymal transition, and melanin synthesis. Overexpression of TRIM14 had opposite effects on the cellular functions of melanoma cell lines. Further study revealed that TRIM14 knockdown increased PTEN protein levels, which in turn inactivated AKT and STAT3 pathways. Moreover, blocking AKT or STAT3 pathway with a specific inhibitor could partially reverse the promotion of melanoma malignancy mediated by TRIM14 overexpression. In addition, in vivo assay also supported the above findings. These results indicated that TRIM14 might be a promising target for melanoma treatment.
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Affiliation(s)
- Jiangyan Chen
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Lin Huang
- Department of Dermatology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Jin Quan
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
| | - Debing Xiang
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing, China
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Wang F, Sun G, Peng C, Chen J, Quan J, Wu C, Lian X, Tang W, Xiang D. ZEB1 promotes colorectal cancer cell invasion and disease progression by enhanced LOXL2 transcription. Int J Clin Exp Pathol 2021; 14:9-23. [PMID: 33532019 PMCID: PMC7847496] [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: 05/05/2020] [Accepted: 06/11/2020] [Indexed: 06/12/2023]
Abstract
Disease progression after curative surgery is still the main challenge for colorectal cancer (CRC). Identifying biomarkers and precise mechanisms in CRC disease progression is necessary for therapeutic improvement. As a transcription factor, ZEB1 promotes malignancy, but the precise mechanism by which ZEB1-dependent transcriptional regulation remains largely undefined. In this study, the transcriptional regulation of lysyl oxidase-like 2 (LOXL2) by ZEB1 in CRC was investigated. Our data show that ZEB1 enhanced LOXL2 transcription through direct binding to its promoter. The gain of function assays of ZEB1 showed increased cell proliferation, migration, and invasion. The inhibition of LOXL2 impaired the invasion and migratory ability of CRC cells, but had no effect on cell proliferation in vitro and in vivo. Immunohistochemical staining of tumor tissues indicated that elevated ZEB1/LOXL2 expression was significantly associated with lymph node metastasis and TNM stage. More importantly, elevated ZEB1/LOXL2 expression was an independent prognostic factor in CRC patients. These findings provide a molecular basis for the promotion of an invasive cancer phenotype by ZEB1-LOXL2 overexpression. Our results identify ZEB1/LOXL2 as a prognostic biomarker and potential therapeutic target against progression of CRC.
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Affiliation(s)
- Fan Wang
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Guiyin Sun
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Chunfang Peng
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Jiangyan Chen
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Jin Quan
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Chunrong Wu
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Xiaojuan Lian
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Weijun Tang
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
| | - Debing Xiang
- Oncology Department, Jiangjin District Central Hospital Chongqing 402260, China
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Wu C, Li B, Sun G, Peng C, Xiang D. Efficacy and Safety of Iodine-125 Brachytherapy in the Treatment of Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma. Onco Targets Ther 2020; 13:9657-9666. [PMID: 33061447 PMCID: PMC7535121 DOI: 10.2147/ott.s269626] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/31/2020] [Indexed: 11/23/2022] Open
Abstract
Background Recurrent or metastatic (R/M) head and neck squamous cell carcinoma (HNSCC) is a difficult challenge for physicians, especially when patients have been treated with external beam radiotherapy. The purpose of this study was to assess the clinical efficacy and safety of computed tomography (CT)-guided iodine-125 brachytherapy as a palliative treatment for R/M HNSCC. Methods From May 2011 to July 2018, we enrolled 87 patients with R/M HNSCC who had previously received external beam radiotherapy. Among these patients, 43 successfully underwent CT-guided iodine-125 brachytherapy and chemotherapy (group A); 44 patients who only received chemotherapy (group B) were matched with patients in group A. Patients' pain score, Eastern Cooperative Oncology Group (ECOG) score, tumor compression symptoms, and side effects of iodine-125 implantation were recorded. Clinical follow-up was performed to assess progression-free survival (PFS) and overall survival (OS). Results Both groups of patients completed the treatment and were followed up for 9-66 months, with a median follow-up time of 44 months. The OS was 51 months (95% CI: 42.93-59.06 months) versus 28 months (95% CI: 23.79-32.21 months) (p < 0.05), the PFS was 10 months (95% CI: 6.15-13.84 months) versus 6 months (95% CI: 4.40-7.59 months) (p < 0.05) in groups A and B, respectively. The RR in group A was 25/43 (58.14%) versus 15/44 (34.10%) in group B (p < 0.05). Compared with group B, patients in group A had lower pain scores, better physical performance, and better improvement of compression symptoms. No serious treatment-related complications were observed in either group of patients. Conclusion Compared with chemotherapy alone, iodine-125 seed implantation combined with chemotherapy was a more effective and safer strategy for R/M HNSCC.
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Affiliation(s)
- Chunrong Wu
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Jiangjin, Chongqing 402260, People's Republic of China
| | - Bo Li
- Department of Cardiology, Jiangjin Central Hospital of Chongqing, Jiangjin, Chongqing 402260, People's Republic of China
| | - Guiyin Sun
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Jiangjin, Chongqing 402260, People's Republic of China
| | - Chunfang Peng
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Jiangjin, Chongqing 402260, People's Republic of China
| | - Debing Xiang
- Department of Oncology, Jiangjin Central Hospital of Chongqing, Jiangjin, Chongqing 402260, People's Republic of China
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Abstract
Background The outbreak of Corona Virus Disease-2019 (COVID-19) has posed unprecedented pressure and threats to healthcare workers in Wuhan and the entire country. Aims To assess the effect of the COVID-19 outbreak on the sleep quality of healthcare workers in a children’s healthcare centre in Wuhan. Methods A cross-sectional, anonymized, self-reported questionnaire survey was conducted at the Children’s Healthcare Centre of Renmin Hospital, Wuhan University, Wuhan, China. The questionnaire consisted of three parts, including socio-demographic characteristics and COVID-19 epidemic-related factors, the Pittsburgh sleep quality index (PSQI), and Zung’s self-rating anxiety scale (SAS) and self-rating depression scale (SDS). Results In total, 47 out of 123 (38%) participants with PSQI scores > 7 were identified as having sleep disturbance. A logistic regression analysis showed that sleep disturbance was independently associated with being an only child (adjusted odds ratio (OR) and 95% confidence interval (CI) 3.40 (1.21–9.57), P < 0.05), exposure to COVID-19 patients (adjusted OR and 95% CI 2.97 (1.08–8.18), P < 0.05) and depression (adjusted OR and 95% CI 2.83 (1.10–7.27), P < 0.05). Conclusions We observed that, during the outbreak of COVID-19, sleep disturbance was highly prevalent among paediatric healthcare workers, and sleep disturbance was independently associated with being an only child, exposure to COVID-19 patients and depression. Therefore, more mental health services are required for front-line paediatric healthcare workers in Wuhan.
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Affiliation(s)
- S Wang
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - L Xie
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Y Xu
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - S Yu
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - B Yao
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - D Xiang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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16
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Wang F, Chen J, Xiang D, Lian X, Wu C, Quan J. Ellagic acid inhibits cell proliferation, migration, and invasion in melanoma via EGFR pathway. Am J Transl Res 2020; 12:2295-2304. [PMID: 32509220 PMCID: PMC7270036] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
Ellagic acid (EA), a polyphenolic compound from pomegranate fruit extracts, has been reported to possess anti-proliferation, pro-apoptosis, and anti-invasion effects on many cancers. However, its effect on melanoma is yet to be clarified. In the present study, we investigated the anti-cancer effects of EA on melanoma cells in vitro and in vivo. The results indicated that 40 µM of EA significantly inhibited the proliferation, migration, and invasion of WM115 and A375 cells. The EA treatment significantly decreased the expression of p-EGFR and Vimentin, but increased the expression of E-cadherin in both cell lines. We further found that EGFR activation significantly abolished the effect of EA on WM115 and A375 cells. Moreover, EA treatment impaired in vivo tumorigenesis of A375 cells. Moreover, elevated pEGFR expression was an independent detrimental factor for melanoma patients. Taken together, our study provided evidence that EA treatment inhibits the migration, invasion and proliferation of melanoma cells via EGFR signaling pathway. These findings strongly suggested that EA might be useful for the development of new therapeutic strategies at melanoma.
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Affiliation(s)
- Fan Wang
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
| | - Jiangyan Chen
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
| | - Debing Xiang
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
| | - Xiaojuan Lian
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
| | - Chunrong Wu
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
| | - Jin Quan
- Department of Oncology, Jiangjin District Central Hospital Chongqing 402260, China
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17
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Xiang D, Lin H. [Research progress in surface bonding pretreatment of dental zirconia ceramics]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:348-352. [PMID: 32392979 DOI: 10.3760/cma.j.cn112144-20191128-00426] [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
Yttria stabilized tetragonal zirconia polycrystal ceramics is widely used in the field of dentistry because of its excellent mechanical properties and biocompatibility. However, it has low hydroxyl content and does not contain silica. Therefore micro mechanical retention induced by hydrofluoric acid etching on its surface is not applicable. The bonding of zirconia is a difficult problem. Zirconia surface pretreatment is commonly used to improve bonding strength and durability. This review summarizes surface pretreatment of dental zirconia ceramic including air abrasion, laser etching, acid etching, silica coating, non-thermal plasmas treatment, et al. In addition, it presents advantages and disadvantages of each treatment, provides guidance for application and future research directions.
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Affiliation(s)
- D Xiang
- Dental Material Research Center, Dental Medical Devices Testing Centre, Peking University and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Lin
- Dental Material Research Center, Dental Medical Devices Testing Centre, Peking University and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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18
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Xiang D, He J, Jiang T. The correlation between estrogen receptor gene polymorphism and osteoporosis in Han Chinese women. Eur Rev Med Pharmacol Sci 2019; 22:8084-8090. [PMID: 30556843 DOI: 10.26355/eurrev_201812_16498] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To uncover the role of estrogen receptor gene polymorphism in the onset of osteoporosis in Han Chinese women. PATIENTS AND METHODS A total of 122 osteoporosis woman patients who were admitted to this hospital between April 2016 and April 2017 were enrolled in this study as the case group, and during the same period, 106 healthy counterparts who took physical examination as the control group. With the genetic samples collected from subjects in two groups, we detected the polymorphisms of Pvu II and Xba I in the estrogen receptor alpha (ERα) gene and the Rsa-I and Aiu-I polymorphisms in the ERβ gene by Restriction Fragment Length Polymorphism (RFLP), and the related-alleles frequency in subjects carrying the genotype of Pvu-1I and Xba-I polymorphisms in the ERα gene or the genotype of Rsa-I and Alu-I polymorphisms in the ERβ gene in the two groups. RESULTS Comparison of genotype frequencies pp, Pp, and PP of ERα Pvu-II polymorphisms between the case group and the control group showed the differences were statistically significant (p < 0.05), in which the P allele in the case group had a higher frequency than that in the control group (p < 0.05). However, comparisons of the genotype frequencies of xx, Xx, and XX of ERα Xba-I polymorphisms between the case group and the control group showed no statistically significant differences (p > 0.05), and similar results were also found in comparison of the genotype frequencies of rr, Rr, and RR of Rsa-I polymorphisms (p > 0.05). By the comparison of genotype frequencies of ERβ Alu-I and Rsa-I polymorphisms in the case group with those in the control group, and by the comparison of genotype frequencies aa, Aa, and AA of ERβ Alu-I polymorphisms in the case group with those in the control group, all the differences were statistically significant (p < 0.05 ). CONCLUSIONS In Han Chinese women, susceptibility to osteoporosis may be affected by ERα Pvu-II polymorphisms and ERβ Alu-I polymorphisms; those carrying genotypes containing A and P alleles may have a higher risk in osteoporosis.
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Affiliation(s)
- D Xiang
- Orthopedic Department, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China.
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Lian X, Xiang D, Peng C, Chen J, Liao M, Sun G, Zhang Z. DDX49 is a novel biomarker and therapeutic target for lung cancer metastases. J Cell Mol Med 2019; 24:1141-1145. [PMID: 31749282 PMCID: PMC6933356 DOI: 10.1111/jcmm.14734] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 09/05/2019] [Accepted: 09/20/2019] [Indexed: 11/28/2022] Open
Abstract
The identification of lymph node metastases is important for the diagnosis, treatment and prognosis of patients with lung cancer. We found DDX49 was associated with the lymph node metastases in lung cancer by the Akt/β-catenin pathway. Transcriptome sequencing, bioinformatics analysis, quantitative RT-PCR, cell transfection and the Cancer Genome Atlas (TCGA) data set were used to identify DDX49 responsible for lymph node metastases. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis was used to explore the possible molecular mechanism in experimental cell. The DDX49 gene was correlated significantly with lymph node metastases of lung cancer. The knockdown of DDX49 inhibited the cell proliferation and migration in PC-9 and H460 cells. The mechanism research found downexpression of DDX49 decreased the Akt/β-catenin pathway in lung cancer cell. In vivo experiments showed that DDX49 promoted the proliferation and metastases of lung cancer cells by increasing the Akt/β-catenin pathway. These findings suggested that DDX49 may be useful as a novel biomarker of lymph node metastases and therapeutic target for lung cancer metastasis.
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Affiliation(s)
- Xiaojuan Lian
- Oncology, Jiangjin District Central Hospital, Chongqing, China
| | - Debing Xiang
- Oncology, Jiangjin District Central Hospital, Chongqing, China
| | - Chunfang Peng
- Oncology, Jiangjin District Central Hospital, Chongqing, China
| | - Jiangyan Chen
- Oncology, Jiangjin District Central Hospital, Chongqing, China
| | - Maojun Liao
- Cancer Center, Daping Hospital, Amry Medical University, Chongqing, China
| | - Guiyin Sun
- Oncology, Jiangjin District Central Hospital, Chongqing, China
| | - Zhimin Zhang
- Cancer Center, Daping Hospital, Amry Medical University, Chongqing, China
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Xia RW, Xun CZ, Xiang D, Zhang JM, Yang QX, Zhao FY, Wang C, Zhu ZY, Li Q, Ye LY. A novel double-variant RHAG allele leads to Rh mod phenotype. Transfus Med 2019; 29:460-465. [PMID: 31032541 DOI: 10.1111/tme.12598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 09/30/2018] [Revised: 01/30/2019] [Accepted: 04/02/2019] [Indexed: 12/28/2022]
Abstract
AIMS/OBJECTIVES We aimed to analyse the molecular backgrounds and red blood cell (RBC) antigen expression of a male blood donor with Rhmod phenotype and his family members. BACKGROUND Rh deficiency phenotypes are rarely found worldwide and are characterised by the lack of Rh antigen expression on RBCs. During routine screening, we found a blood donor who seemingly lacked Rh antigens. Therefore, we recruited the donor and his family for further investigation. METHODS RBC serotyping and antibody screening/identification were performed for each sample. A routine blood examination was also conducted. RHD, RHCE and RHAG were sequenced at the genomic DNA or RNA level. Eleven antigens or proteins associated with Rh complex were tested using flow cytometry analysis. RESULTS The proband and one of his brothers showed extremely weak D antigen and Rh expression levels but did not manifest anaemia. Most of the expressed RBC antigens of the two Rh-deficient individuals were similar to the previously reported cases but with some exceptions. Molecular analyses demonstrated homozygous expression of a novel RHAG allele, namely, c.[572G>A;707A>C], both in the proband and one of his brothers. CONCLUSIONS To our knowledge, we identified the second double-variant RHAG allele and the first one related to Rhmod phenotype. The novel allele was also confirmed to be heritable by family analyses.
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Affiliation(s)
- R W Xia
- Blood Group Reference Laboratory, Qujing Blood Center, Qujing, China
| | - C Z Xun
- Blood Group Reference Laboratory, Qujing Blood Center, Qujing, China
| | - D Xiang
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - J M Zhang
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Q X Yang
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - F Y Zhao
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - C Wang
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Z Y Zhu
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Q Li
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - L Y Ye
- Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
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21
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Zhang B, Xiang D, Yang R, Yang L, Li J, Zhao Z. Variations in Tissue-Specific Expression of Adipose Differentiation-Related Protein Gene in Two Native Yunnan Chicken Breeds. Braz J Poult Sci 2019. [DOI: 10.1590/1806-9061-2017-0780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- B Zhang
- Yunnan Animal Science and Veterinary Institute, China
| | - D Xiang
- Yunnan Animal Science and Veterinary Institute, China
| | - R Yang
- Livestock Workstation of Pu’er City, China
| | - L Yang
- Livestock Workstation of Pu’er City, China
| | - J Li
- Kunming University, China; Kunming University, China
| | - Z Zhao
- Yunnan Animal Science and Veterinary Institute, China
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22
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Wu C, Li B, Sun G, Peng C, Xiang D. Efficacy and safety of iodine-125 brachytherapy combined with chemotherapy in the treatment of advanced NSCLC in the elderly. Onco Targets Ther 2018; 11:6617-6624. [PMID: 30349295 PMCID: PMC6188210 DOI: 10.2147/ott.s174457] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Advanced non-small-cell lung cancer (NSCLC) is a huge challenge for physicians. Traditional chemoradiotherapy is associated with high rates of toxicities, especially when treating gerontal patients. Our study was focused on investigating the safety and efficacy of permanent iodine-125 seed implantation and chemotherapy for the treatment of advanced NSCLC in the elderly. Methods Fifty elderly patients with stage III or IV NSCLC at our hospital from January 2011 to June 2017 were treated with the chemotherapy regimens (paclitaxel/cisplatin) and computed tomography (CT)-guided iodine-125 brachytherapy (group A), 50 patients who received chemotherapy consisting of paclitaxel and cisplatin only (group B) were matched-up with the patients in group A. The local response rate was evaluated by CT. Progression-free survival (PFS) and overall survival (OS) data were obtained through clinical follow-up. Results The patients were followed-up for 3-46 months. With a median follow-up time of 20 months, the OS and PFS were 20 months (95% CI: 19.09-20.90 months) vs 15 months (95% CI: 14.48-15.51 months) (P<0.05) and 13 months (95% CI: 11.96-14.04 months) vs 8 months (95% CI: 7.63-8.37 months) (P<0.05) in group A and group B, respectively. The symptoms of patients in group A were significantly relieved when compared with group B. Severe complications were not observed in either of the groups. Conclusion The combination of iodine-125 seed brachytherapy and chemotherapy is an effective and safe therapy and is superior to chemotherapy alone for advanced NSCLC in the elderly.
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Affiliation(s)
- Chunrong Wu
- Department of Oncology, Jiangjin Center Hospital of Chongqing, Jiangjin, China,
| | - Bo Li
- Department of Cardiology, Jiangjin Center Hospital of Chongqing, Jiangjin, China
| | - Guiyin Sun
- Department of Oncology, Jiangjin Center Hospital of Chongqing, Jiangjin, China,
| | - Chunfang Peng
- Department of Oncology, Jiangjin Center Hospital of Chongqing, Jiangjin, China,
| | - Debing Xiang
- Department of Oncology, Jiangjin Center Hospital of Chongqing, Jiangjin, China,
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23
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Ramírez-González RH, Borrill P, Lang D, Harrington SA, Brinton J, Venturini L, Davey M, Jacobs J, van Ex F, Pasha A, Khedikar Y, Robinson SJ, Cory AT, Florio T, Concia L, Juery C, Schoonbeek H, Steuernagel B, Xiang D, Ridout CJ, Chalhoub B, Mayer KFX, Benhamed M, Latrasse D, Bendahmane A, Wulff BBH, Appels R, Tiwari V, Datla R, Choulet F, Pozniak CJ, Provart NJ, Sharpe AG, Paux E, Spannagl M, Bräutigam A, Uauy C. The transcriptional landscape of polyploid wheat. Science 2018; 361:eaar6089. [PMID: 30115782 DOI: 10.1126/science.aar6089] [Citation(s) in RCA: 497] [Impact Index Per Article: 82.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/11/2018] [Indexed: 12/14/2022]
Abstract
The coordinated expression of highly related homoeologous genes in polyploid species underlies the phenotypes of many of the world's major crops. Here we combine extensive gene expression datasets to produce a comprehensive, genome-wide analysis of homoeolog expression patterns in hexaploid bread wheat. Bias in homoeolog expression varies between tissues, with ~30% of wheat homoeologs showing nonbalanced expression. We found expression asymmetries along wheat chromosomes, with homoeologs showing the largest inter-tissue, inter-cultivar, and coding sequence variation, most often located in high-recombination distal ends of chromosomes. These transcriptionally dynamic genes potentially represent the first steps toward neo- or subfunctionalization of wheat homoeologs. Coexpression networks reveal extensive coordination of homoeologs throughout development and, alongside a detailed expression atlas, provide a framework to target candidate genes underpinning agronomic traits in wheat.
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24
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Li J, Zhao Z, Xiang D, Zhang B, Ning T, Duan T, Rao J, Yang L, Zhang X, Xiong F. Expression of APOB, ADFP and FATP1 and their correlation with fat deposition in Yunnan's top six famous chicken breeds. Br Poult Sci 2018; 59:494-505. [PMID: 30004246 DOI: 10.1080/00071668.2018.1490494] [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] [Indexed: 10/28/2022]
Abstract
1. Adipose differentiation related protein (ADFP), fatty acid transport protein 1 (FATP1) and apolipoprotein B (APOB) are suspected to play an important role in determining intramuscular fat and in overall meat quality. 2. Yunnan's top six famous chicken breeds (the Daweishan Mini, Yanjin Black-bone, Chahua, Wuding, Wuliangshan Black-bone and Piao chicken) are known for the high quality of their meat, but little is known about their expression of these three genes. 3. The present study aimed to examine the ADFP, FATP1 and APOB genes in different tissues of these six breeds at different development stages. The subcutaneous fat from the back midline and front, abdominal fat, liver and muscle tissue was sampled at 28, 49, 70, 91 and 112 days. The expression of ADFP, FATP1 and APOB was measured by real-time PCR. 4. The results showed that the expression of the three genes differed depending on age, tissue types and breeds. However, the expression of the three genes correlated with fat traits. In conclusion, the expression of the ADFP, FATP1 and APOB genes is associated with the fat traits of Yunnan's top six chicken breeds. These results could help with molecular marker screening and marker-assisted breeding to improve the quality of poultry for meat production.
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Affiliation(s)
- J Li
- a Agricultural College , Kunming University , Kunming , China.,b Engineering Research Centre for Urban Modern Agriculture of Higher Education in Yunnan Province , Kunming University , Kunming , China
| | - Z Zhao
- c Institute of Pig and A Nutrition , Yunnan Animal Science and Veterinary Institute , Kunming , China
| | - D Xiang
- c Institute of Pig and A Nutrition , Yunnan Animal Science and Veterinary Institute , Kunming , China
| | - B Zhang
- c Institute of Pig and A Nutrition , Yunnan Animal Science and Veterinary Institute , Kunming , China
| | - T Ning
- a Agricultural College , Kunming University , Kunming , China.,b Engineering Research Centre for Urban Modern Agriculture of Higher Education in Yunnan Province , Kunming University , Kunming , China
| | - T Duan
- d Chuxiong City Animal Husbandry and Veterinary Services , Chuxiong , China
| | - J Rao
- e Zhaotong City Animal Husbandry and Veterinary Technology Promotion Workstation , Zhaotong , China
| | - L Yang
- f Puer City Animal Husbandry Workstation , Puer , China
| | - X Zhang
- g Agricultural Environmental Protection Monitoring Station of Yunnan Province , China
| | - F Xiong
- h Animal Husbandry and Technology Promotion Workstation , Xishuangbanna Dai Autonomous Prefecture , China
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25
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Cai X, Li F, Lei H, Qu S, Qian C, Xiang D, Wei DQ, Wu W, Xu Q, Wang X. p.R180C mutation of glycosyltransferase B leads to B subgroup, an in vitro and in silico study. Vox Sang 2018; 113:476-484. [PMID: 29726014 DOI: 10.1111/vox.12655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND OBJECTIVES Dysfunctional glycosyltransferase A or B may lead to incomplete glycosylation of H antigen and atypical ABO blood group with weak A or B phenotypes, posing challenges for blood typing for transfusion. MATERIALS AND METHODS Serological studies and ABO gene analysis were performed. Flow cytometry was performed on HeLa cells transfected glycosyltransferase B expressing plasmids. Agglutination of transfected cells and total glycosyltransferase B transfer capacity were examined. Molecular dynamics simulations were used to explore possible dynamic conformational changes around the binding pocket. RESULTS We identified a mutation c.538C>T (p. R180C) of B allele in a Chinese donor and his father with ABw phenotype. In vitro expression study showed that mutation p.R180C, although not affecting expression of glycosyltransferase B, impaired H to B antigen conversion. The in silico analyses found that the residue Arg180 on the internal loop next to the entry of the binding pocket may have its long side chain salt-bridged with the highly flexible C-terminal carboxyl and contribute to the catalysis of H to B antigen conversion. CONCLUSION The p.R180C mutation impairs the conversion from H to B antigen and leads to weak B phenotype. Dynamic interaction between Arg180 and C-terminal of glycosyltransferase B may stabilize its binding with UDP-galactose and facilitate H/B antigen conversion.
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Affiliation(s)
- X Cai
- Ruijin Hospital, Medical School of Shanghai Jiao Tong University, Shanghai, China
| | - F Li
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - H Lei
- Ruijin Hospital, Medical School of Shanghai Jiao Tong University, Shanghai, China
| | - S Qu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - C Qian
- Blood Group Reference Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Group Reference Laboratory, Shanghai Blood Center, Shanghai, China
| | - D-Q Wei
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - W Wu
- Ruijin Hospital, Medical School of Shanghai Jiao Tong University, Shanghai, China
| | - Q Xu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - X Wang
- Ruijin Hospital, Medical School of Shanghai Jiao Tong University, Shanghai, China
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26
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Zheng JW, Shen W, Sun Y, Xie JH, Xiang D. A novel HLA class I allele: HLA-A*11:01:49. HLA 2018; 91:531-532. [PMID: 29573329 DOI: 10.1111/tan.13259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/10/2018] [Accepted: 03/14/2018] [Indexed: 11/28/2022]
Abstract
The HLA-A*11:01:49 allele differs from A*11:01:01:01 by one synonymous nucleotide substitution at position 837.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Blood Center Shanghai, Shanghai, China
| | - W Shen
- Blood Typing Laboratory, Blood Center Shanghai, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Blood Center Shanghai, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Blood Center Shanghai, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Blood Center Shanghai, Shanghai, China
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27
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Abstract
The HLA-B*40:01:31 allele differs from B*40:01:01 by one nucleotide substitution at position 216.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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28
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Zheng JW, Shen W, Sun Y, Xie JH, Xiang D. A novel HLA-B allele: HLA-B*40:241. HLA 2017; 91:138-139. [PMID: 29278463 DOI: 10.1111/tan.13194] [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: 12/11/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 11/28/2022]
Abstract
The HLA-B*40:241 allele differs from B*40:01:01 by 1 nucleotide substitution at position 691.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - W Shen
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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29
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Yue J, Lian X, Yue P, Xiang D, Wang C. Impact on major CBC parameters caused by different types of lipids in patient plasma. Int J Lab Hematol 2017; 40:e1-e3. [PMID: 29058373 DOI: 10.1111/ijlh.12706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J Yue
- Department of Clinical Laboratory, General Hospital of PLA, Beijing, China
| | - X Lian
- Department of Clinical Laboratory, General Hospital of PLA, Beijing, China
| | - P Yue
- Department of Clinical Laboratory, General Hospital of PLA, Beijing, China
| | - D Xiang
- Department of Clinical Laboratory, General Hospital of PLA, Beijing, China
| | - C Wang
- Department of Clinical Laboratory, General Hospital of PLA, Beijing, China
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30
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. A novel HLA class II allele, HLA-DQB1*03:73. HLA 2017; 90:261-262. [DOI: 10.1111/tan.13083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 06/13/2017] [Accepted: 06/14/2017] [Indexed: 11/29/2022]
Affiliation(s)
- J. W. Zheng
- Blood Typing Laboratory; Shanghai Blood Center; Shanghai China
| | - J. H. Xie
- Blood Typing Laboratory; Shanghai Blood Center; Shanghai China
| | - Y. Sun
- Blood Typing Laboratory; Shanghai Blood Center; Shanghai China
| | - Y. Q. Jiang
- Blood Typing Laboratory; Shanghai Blood Center; Shanghai China
| | - D. Xiang
- Blood Typing Laboratory; Shanghai Blood Center; Shanghai China
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31
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Dong B, Ge N, Xiang D, Du P. FRAILTY RESEARCH IN CHINA AND ROLE OF FRAILTY ASSESSMENT IN HOME CARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- B. Dong
- The Center of Gerontology and Geriatrics at West China Hospital, Sichuan University, Chengdu, China
| | - N. Ge
- The Center of Gerontology and Geriatrics at West China Hospital, Sichuan University, Chengdu, China
| | - D. Xiang
- The Center of Gerontology and Geriatrics at West China Hospital, Sichuan University, Chengdu, China
| | - P. Du
- Renmin University of China, Beijing, China
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32
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. A novel HLA-B allele: HLA-B*40:242. HLA 2017; 90:120-121. [PMID: 28401740 DOI: 10.1111/tan.13041] [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: 03/15/2017] [Revised: 03/19/2017] [Accepted: 03/20/2017] [Indexed: 11/30/2022]
Abstract
The HLA-B*40:242 allele differs from B*40:54 by 1 nucleotide substitution at position 190.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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33
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. Characterization of the novel HLA-DRB1*11:01:20 allele. HLA 2017; 89:258-259. [PMID: 28297414 DOI: 10.1111/tan.12993] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 02/08/2017] [Accepted: 02/08/2017] [Indexed: 11/30/2022]
Abstract
The HLA- DRB1*11:01:20 allele differs from DRB1*11:01:01:01 by 1 nucleotide substitution at position 219.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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34
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Wu G, Xiang D, Zhang B, Hong Q, Guan G. The parthenogenetic development of porcine in vitro matured oocytes vitrified before or after electric activation. Cryo Letters 2017; 38:407-413. [PMID: 29734408] [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: 06/08/2023]
Abstract
UNLABELLED BACKGROUND: The highly efficient production of parthenogenetic embryos from vitrified porcine in vitro matured oocytes has become essential for biotechnology and biomedicine research. OBJECTIVE To investigate the survival and parthenogenetic development of oocytes vitrified before or after electric activation. MATERIALS AND METHODS The vitrified oocytes were parthenogenetically activated at 0, 0.5, 1, 2 and 4 h post warming (h.p.w.), and fresh oocytes were vitrified at 0, 0.5, 1, 2 and 4 h post electric activation (h.p.a.). RESULTS In comparison with non-vitrified oocytes, the rates of survival and activation of oocytes vitrified at 0.5, 1, 2 and 4 h.p.a. were similar, but the parameters in other vitrified groups significantly decreased. Parthenogenetic development in vitrified 0.5, 1, 2 and 4 h.p.a. groups was also significantly higher than that in other vitrified groups. Moreover, the total cell numbers of blastocysts were similar among all groups. CONCLUSION Porcine oocytes vitrified at 0.5-4 h h.p.a. showed acceptable survival and pronuclear formation, and a higher blastocyst yield could be obtained from these oocytes.
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Affiliation(s)
- G Wu
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
| | - D Xiang
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
| | - B Zhang
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
| | - Q Hong
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
| | - G Guan
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China.
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35
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Yang JH, Jiang YQ, Sun Y, Tang QJ, Xiang D. Identification of a novel HLA-DRB1*14 allele, HLA-DRB1*14:127:01, in a Chinese Individual. HLA 2016; 88:208-9. [PMID: 27620853 DOI: 10.1111/tan.12881] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/10/2016] [Accepted: 08/11/2016] [Indexed: 11/28/2022]
Abstract
Two nucleotide changes in codon 77 (ACC → AAT) of HLA-DRB1*14:05:03 result in the allele, HLA-DRB1*14:127:01.
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Affiliation(s)
- J H Yang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Q J Tang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China.
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36
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. A novel HLA-B allele, HLA-B*13:69. HLA 2016; 88:122-3. [PMID: 27471060 DOI: 10.1111/tan.12847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 11/28/2022]
Abstract
HLA-B*13:69 allele differs from B*13:02:01 by one nucleotide substitution at position 628 from A to C.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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37
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Wang ZG, Xiang D, Wang XB, Li CF. Preparation of an inoculum of Gluconacetobacter xylinus without mutants in shaken culture. J Appl Microbiol 2016; 121:713-20. [PMID: 27249070 DOI: 10.1111/jam.13193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/25/2016] [Accepted: 05/29/2016] [Indexed: 11/28/2022]
Abstract
AIMS A high-quality inoculum of Gluconacetobacter xylinus is important to produce bacterial cellulose (BC), a versatile biomaterial. This work aims to develop a method of preparing an inoculum of this bacterium with high cell density and without mutants. METHODS AND RESULTS Inocula of G. xylinus ACCC 10220 without and with cellulase or carboxymethyl cellulose (CMC) were prepared in shaken culture. BC pellets and BC-negative mutants were present in the inoculum without additives but absent in the inoculum with additives. Based on BC weights statically produced in fresh BC-producing media initiated by different seed culture, the 24-h-shaken inoculum with 1·50% (w/v) CMC was the best because of high biomass and absence of mutants. The BC weights in fresh media inoculated by the 96-h-static inoculum and 24-h-shaken CMC inoculum at 7% (v/v) were 0·70 and 1·05 g l(-1) , respectively, implying significant difference (P < 0·01) in BC weights. However, structure properties of the two BC samples, including the crystallinity index, mass fraction of cellulose Iα , degree of polymerization (DP) and micromorphology were slightly different. CONCLUSIONS The 24-h-shaken CMC inoculum was the most suitable for a starter culture of BC. SIGNIFICANCE AND IMPACT OF THE STUDY A novel method of preparing G. xylinus inoculum in shaken culture was developed, featuring high biomass, absence of mutants and no BC entanglements. Cellulase or CMC added into the medium completely suppressed mutation of G. xylinus, and CMC facilitated to form colloidal BC with the low DP in shaken culture, indicating less BC stress to cells. These findings suggested the mutation could be induced by BC stress, and not by shear stress commonly accepted.
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Affiliation(s)
- Z-G Wang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - D Xiang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - X-B Wang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - C-F Li
- College of Food Science and Technology, Hainan University, Haikou, China
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38
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. A novel HLA-B allele, HLA-B*56:40. HLA 2016; 88:51-2. [PMID: 27238407 DOI: 10.1111/tan.12821] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/28/2016] [Accepted: 05/02/2016] [Indexed: 11/28/2022]
Abstract
HLA-B*56:40 allele differs from B*56:01:01:01 by one nucleotide substitution at position 874.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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39
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Wu Y, Fan L, Liu M, Shen W, Xiang D, Cai X. Anti-Di(b) causing hemolytic disease of the fetus and newborn and the challenges of anti-Di(b) in perinatal management in China. Transfus Med 2015; 25:428-30. [PMID: 26578228 DOI: 10.1111/tme.12260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 07/22/2015] [Accepted: 10/24/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Y Wu
- Blood Group Reference Laboratory, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China.,Blood Group Reference Laboratory, Taiyuan Red Cross Blood Center, Taiyuan, China
| | - L Fan
- Blood Group Reference Laboratory, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - M Liu
- Children's Hospital of Fudan University, Blood Transfusion Department, Shanghai, China
| | - W Shen
- Blood Group Reference Laboratory, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - D Xiang
- Blood Group Reference Laboratory, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - X Cai
- Blood Group Reference Laboratory, Shanghai Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China.,Blood Transfusion Department, Ruijin Hospital, Medical School of Shanghai Jiao Tong University, Shanghai, China
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40
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41
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Yang JH, Jiang YQ, Sun Y, Zheng JW, Tang QJ, Xie JH, Xiang D. Identification of a novel HLA-B*40 allele, HLA-B*40:229, in a Chinese individual. ACTA ACUST UNITED AC 2015; 86:301-2. [PMID: 26302685 DOI: 10.1111/tan.12640] [Citation(s) in RCA: 3] [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: 06/25/2015] [Accepted: 07/16/2015] [Indexed: 11/28/2022]
Abstract
The novel HLA-B*40:229 allele shows one nucleotide difference from B*40:02:01 in exon 2 at nucleotide position 97 (C → T).
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Affiliation(s)
- J H Yang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Y Q Jiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Y Sun
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - Q J Tang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - J H Xie
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
| | - D Xiang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P. R. China
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Xiang D, Yue J, Lan Y, Sha C, Ren S, Li Y, Li M, Wang C. Evaluation of Mindray BC-5000 hematology analyzer: a new miniature 5-part WBC differential instrument. Int J Lab Hematol 2015; 37:597-605. [PMID: 25944368 DOI: 10.1111/ijlh.12370] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 02/17/2015] [Indexed: 11/29/2022]
Affiliation(s)
- D. Xiang
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - J. Yue
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - Y. Lan
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - C. Sha
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - S. Ren
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - Y. Li
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - M. Li
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - C. Wang
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
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Zheng JW, Xie JH, Sun Y, Jiang YQ, Xiang D. Identification of a novel HLA-A*24 variant allele, A*24:02:60. ACTA ACUST UNITED AC 2015; 85:504-5. [PMID: 25818924 DOI: 10.1111/tan.12552] [Citation(s) in RCA: 3] [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: 01/08/2015] [Accepted: 02/16/2015] [Indexed: 11/30/2022]
Abstract
HLA-A*24:02:60 allele differs from A*24:02:01:01 by one nucleotide substitution at nt 564 from C to T.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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Tang QJ, Guo ZH, Jiang YQ, Yang JH, Zheng JW, Sun Y, Xie JH, Xiang D. Identification of a novel HLA-B*40 allele, HLA-B*40:210, in a Chinese individual. ACTA ACUST UNITED AC 2014; 85:71-2. [PMID: 25417750 DOI: 10.1111/tan.12465] [Citation(s) in RCA: 3] [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: 08/25/2014] [Accepted: 10/01/2014] [Indexed: 11/26/2022]
Abstract
The newly detected HLA-B*40:210 allele has two nucleotide changes in exon 2 compared to B*40:49 allele.
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Affiliation(s)
- Q J Tang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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Abstract
Tomato mottle mosaic virus (ToMMV), a tentative member in genus Tobamovirus, was first reported from a greenhouse tomato sample collected in Mexico in 2013 (2). In August 2013, foliar mottle, shrinking, and necrosis were observed on pepper plants in several vegetable greenhouses of Lhasa, Tibet Autonomous Region, China. Seven symptomatic samples were collected and tested by dot-blot ELISA with antisera against Cucumber mosaic virus, Tobacco mosaic virus (TMV), Cucumber green mottle mosaic virus, Tomato spotted wilt virus, Turnip mosaic virus, and Broad bean wilt virus 2 (kindly provided by Dr. Xueping Zhou of Zhejiang University, China) (3). One of the bell pepper (Capsicum annuum var. grossum) samples reacted with the TMV antibody. Rod-shaped virus particles 300 nm in length were observed in this sample under electron microscopy. The results suggested that a tobamovirus closely related to TMV might be a causal agent. Total nucleic acids were then extracted from all seven samples using a CTAB method (1) and tested by RT-PCR using a pair of tobamovirus degenerate primers, TobamoF (GCWAAGGTKGTWYTBGTRGAYGG) and TobamoR (GTAATTGCTATTGDGTWCCWGC). These two primers were designed according to a conserved region of the TMV, Tomato mosaic virus, and ToMMV genomes (nt 2551-3433 of ToMMV genome [KF477193]). An amplicon of approximately 880 bp was obtained only from the TMV-positive sample. The amplicon was cloned and sequenced (GenBank Accession No. KJ605653). NCBI BLAST search showed that it shared the highest identity (99%) with ToMMV (KF477193), and shared the sequence homology of 82% to Tomato mosaic virus (AF332868) and 77% to TMV (V01408). The results indicated that the symptomatic pepper was infected with ToMMV. To investigate the distribution and incidence of ToMMV, 313 samples of symptomatic pepper, tomato, pumpkin, cucumber, radish, Chinese cabbage, broad bean, pea, and kidney bean samples were collected from 65 fields in Yunnan Province and Tibet Autonomous Region, and tested in RT-PCR with ToMMV-specific primers ToMMVF (AGAGAGATGGCGATAGGTTAAC, identical to nt 830-851 of ToMMV genome, GenBank Accession No. KF477193) and ToMMVR (CTGCAGTCATAGGATCTACTTC, complementary to nt1849-1828). The virus was detected in three tabasco peppers (C. frutescens) from Yunnan and one bell pepper plant from Tibet, suggesting that ToMMV has a restricted host range and is not common in these two regions. To our knowledge, this is the first report of natural infection of ToMMV in peppers as well as in China. References: (1) R. Li et al. J. Virol. Methods 154:48, 2008. (2) R. Li et al. Genome Announc. 1(5):e00794-13, 2013. (3) Y. Xie et al. Virol. J. 10:142, 2013.
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Affiliation(s)
- Y Y Li
- Key Laboratory of Agricultural Biodiversity for Pest Management of China Education Ministry, Yunnan Agricultural University, Kunming 650201, China
| | - C L Wang
- Agricultural Research Institute, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850000, China
| | - D Xiang
- Vegetable Research Institute, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850032, China
| | - R H Li
- USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705
| | - Y Liu
- Plant Protection Institute, Hunan Academy of Agricultual Sciences, Changsha 410125, China
| | - F Li
- Key Laboratory of Agricultural Biodiversity for Pest Management of China Education Ministry, Yunnan Agricultural University, Kunming 650201, China
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46
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Hemsing E, Marinelli A, Marcus G, Xiang D. Correlated energy-spread removal with space charge for high-harmonic generation. Phys Rev Lett 2014; 113:134802. [PMID: 25302893 DOI: 10.1103/physrevlett.113.134802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Indexed: 06/04/2023]
Abstract
We study the effect of longitudinal space charge on the correlated energy spread of a relativistic high-brightness electron beam that has been density modulated for the emission of coherent, high-harmonic radiation. We show that, in the case of electron bunching induced by a laser modulator followed by a dispersive chicane, longitudinal space charge forces can act to strongly reduce the induced energy modulation of the beam without a significant reduction in the harmonic bunching content. This effect may be optimized to enhance the output power and overall performance of free-electron lasers that produce coherent light through high-gain harmonic generation. It also increases the harmonic number achievable in these devices, which are otherwise gain-limited by the induced energy modulation from the laser.
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Affiliation(s)
- E Hemsing
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - A Marinelli
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - G Marcus
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - D Xiang
- Department of Physics and Astronomy, Key Laboratory for Laser Plasmas (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
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Zheng JW, Guo ZH, Jiang YQ, Yang JH, Xie JH, Sun Y, Tang QJ, Xiang D. A new human leukocyte antigen class I allele: HLA-A*11:125. ACTA ACUST UNITED AC 2014; 84:408-9. [PMID: 25040231 DOI: 10.1111/tan.12399] [Citation(s) in RCA: 3] [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: 04/10/2014] [Revised: 05/02/2014] [Accepted: 05/26/2014] [Indexed: 11/30/2022]
Abstract
HLA-A*11:125 allele differs from A*11:01:01 by one nucleotide substitution at nt 140 from T to C.
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Affiliation(s)
- J W Zheng
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, China
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Xiang D, Liu CC, Wang MJ, Li JX, Chen F, Yao H, Yu B, Lu L, Borjigin U, Chen YX, Zhong L, Wangensteen KJ, He ZY, Wang X, Hu YP. Non-viral FoxM1 gene delivery to hepatocytes enhances liver repopulation. Cell Death Dis 2014; 5:e1252. [PMID: 24853430 PMCID: PMC4047909 DOI: 10.1038/cddis.2014.230] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 04/03/2014] [Accepted: 04/14/2014] [Indexed: 01/08/2023]
Abstract
Hepatocyte transplantation as a substitute strategy of orthotopic liver transplantation is being studied for treating end-stage liver diseases. Several technical hurdles must be overcome in order to achieve the therapeutic liver repopulation, such as the problem of insufficient expansion of the transplanted hepatocytes in recipient livers. In this study, we analyzed the application of FoxM1, a cell-cycle regulator, to enhance the proliferation capacity of hepatocytes. The non-viral sleeping beauty (SB) transposon vector carrying FoxM1 gene was constructed for delivering FoxM1 into the hepatocytes. The proliferation capacities of hepatocytes with FoxM1 expression were examined both in vivo and in vitro. Results indicated that the hepatocytes with FoxM1 expression had a higher proliferation rate than wild-type (WT) hepatocytes in vitro. In comparison with WT hepatocytes, the hepatocytes with FoxM1 expression had an enhanced level of liver repopulation in the recipient livers at both sub-acute injury (fumaryl acetoacetate hydrolase (Fah)–/– mice model) and acute injury (2/3 partial hepatectomy mice model). Importantly, there was no increased risk of tumorigenicity with FoxM1 expression in recipients even after serial transplantation. In conclusion, expression of FoxM1 in hepatocytes enhanced the capacity of liver repopulation without inducing tumorigenesis. FoxM1 gene delivered by non-viral SB vector into hepatocytes may be a viable approach to promote therapeutic repopulation after hepatocyte transplantation.
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Affiliation(s)
- D Xiang
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - C-C Liu
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - M-J Wang
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - J-X Li
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - F Chen
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - H Yao
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - B Yu
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - L Lu
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - U Borjigin
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Huhhot, China
| | - Y-X Chen
- 1] Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA [2] Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - L Zhong
- 1] School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China [2] Shenzhen Center for ADR Monitoring, Shenzhen, China
| | - K J Wangensteen
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Z-Y He
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
| | - X Wang
- 1] The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Huhhot, China [2] Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA [3] Hepatoscience Incorporation, Palo Alto, CA, USA
| | - Y-P Hu
- 1] Department of Cell Biology, Second Military Medical University, Shanghai, China [2] Center for Stem Cell and Medicine, The Graduate School, Second Military Medical University, Shanghai, China
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Wallace AS, Xiang D, Hockman L, Arya M, Jeffress J, Wang Z, Dale PS. Abstract P6-06-35: Invasive lobular cancer versus mixed invasive lobular cancer with invasive ductal cancer: 20 year outcomes at one institution. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p6-06-35] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Conflicting reports exist regarding characteristics and outcomes of patients with only invasive lobular carcinoma (ILC) and mixed invasive lobular and ductal carcinoma (ILC/IDC). The purpose of this project is to report experience of 20 year cohort at one institution.
Methods: Patients diagnosed with ILC between 1990 and 2010 were divided into two groups: ILC alone and ILC/IDC. Patient demographics, history, diagnosis and treatment modalities, and outcomes were captured. Chi-square, log-rank, and Wilcoxon rank sums tests were utilized for statistical analysis. P < 0.05 was considered significant.
Results: In 189 AJCC Stage I-III patients, ILC was identified in 149 (79%) and ILC/IDC in 39 (21%). ILC stage was I, II, III in 46 (31%), 57 (41%), 32 (21%) ILC, and ILC/IDC was 17 (44%), 16 (41%), 4 (10%). Median age (range) at diagnosis was 64 (31-88) for ILC and 64 (35-84) years for ILC/IDC (p = 0.78). Median largest tumor diameter was 22 (range 1-100) in ILC, and 20 (range 2-110) mm in ILC/IDC (p = 0.97). Seventy-eight (52%) and 20 (51%) were diagnosed with ILC and ILC/IDC clinically, and 58 (39%) and 15 (38%) were diagnosed with ILC and ILC/IDC radiographically (p = 0.96). Treatment modalities were mastectomy and breast conservation therapy in 82(55%) and 67(45%) of patients with ILC, 18 (46%) and 21 (54%) of patients with ILC/IDC (p = 0.32). In 136 (91%) ILC and 33 (85%) ILC/IDC patients who had nodal evaluation/excision, 59 (43%) ILC and 12 (36%) ILC/IDC patients presented with positive nodal status. ER, PR, and HER2 status were positive in 132 (89%), 104 (70%), 7 (5%) ILC, and 29 (74%), 26 (67%), 3 (8%) ILC/IDC patients respectively (p = 0.02, p = 0.85, p = 0.17).
Median (range) follow-up for ILC was 6.1 (< 1-22.3), and 8.0 (1.72-17.7) years for ILC/IDC (p = 0.03). At the time of analysis, 43(29%) patients with ILC, and 11(28%) patients with ILC/IDC had expired (p = 0.94). Median (range) follow-up for patients who were alive at time of analysis was 6.8 (<1-20.7) years for ILC, and10.1 (2.3-17.7) years for ILC/IDC (p = 0.06). Time to first recurrence was 3.23 (0.8-17.0) years in ILC, and 5.2 (2.9-9.3) years in ILC/IDC (p = 0.20). Recurrence was identified in 33(22%) ILC: 15(46%) locoregional and18 (54%) distant disease. Similarly, recurrence was found in 7 (20%) ILC/IDC patients: 4 locoregional and 3 distant. Most locoregional recurrences, 12/15 (80%), occurred in the ipsilateral breast in ILC, and 3/4 (75%) in ILC/IDC (p = 0.82). Five years disease free survival rates were 76% ILC and 85% for ILC/IDC, and 10 years rates were 63% for ILC and 67% for ILC/IDC (p = 0.4941). Overall survival estimates at 5 years were 84% for ILC and 92% for ILC/IDC, and at 10 years were 65% for ILC and 74% for ILC/IDC (p = 0.52).
Conclusion: While basic demographics and survival patterns did not differ statistically between ILC and ILC/IDC, pure ILC histology tends to carry a higher risk of recurrence, as well as worse disease free and overall survival compared to ILC/IDC. ILC histology was more likely to be ER positive, present with advanced stage, and recur in the ipsilateral breast than the contralateral breast.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P6-06-35.
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Affiliation(s)
- AS Wallace
- University of Missouri, Columbia; Creighton University
| | - D Xiang
- University of Missouri, Columbia; Creighton University
| | - L Hockman
- University of Missouri, Columbia; Creighton University
| | - M Arya
- University of Missouri, Columbia; Creighton University
| | - J Jeffress
- University of Missouri, Columbia; Creighton University
| | - Z Wang
- University of Missouri, Columbia; Creighton University
| | - PS Dale
- University of Missouri, Columbia; Creighton University
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50
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Yang JH, Guo ZH, Jiang YQ, Zheng JW, Tang QJ, Xie JH, Sun Y, Xiang D. Identification of a novelHLA-A*02allele,HLA-A*02:06:13, in a Chinese individual. ACTA ACUST UNITED AC 2013; 83:52-3. [DOI: 10.1111/tan.12241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 10/13/2013] [Indexed: 11/28/2022]
Affiliation(s)
- J H Yang
- Blood Typing Laboratory, Shanghai Blood Center, Shanghai, P.R. China
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