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Sun R, Li G, Xie F, Zhang Q, Sun YJ, Dai W. Exhaustive Hydrodefluorination or Deuterodefluorination of Trifluoromethylarenes via Metal-Free Photoredox Catalysis. Org Lett 2024; 26:928-932. [PMID: 38270353 DOI: 10.1021/acs.orglett.3c04265] [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: 01/26/2024]
Abstract
Perfluoroalkyl compounds are persistent environmental pollutants due to their chemical and thermal stability. Hydrodefluorination is one of the most promising strategies for the disposal of fluorine-containing compounds, which has attracted much attention from a broad spectrum of scientific communities. Herein, we disclose a metal-free, visible-light-promoted protocol for the exhaustive hydrodefluorination of a wide variety of trifluoromethylarenes with up to 95% yields. Moreover, methyl-d3 groups can be obtained via deuterium water with a D ratio of up to 94%.
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Affiliation(s)
- Ruixia Sun
- School of Chemistry, Dalian University of Technology, Dalian 116024, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guosong Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Fukai Xie
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qiang Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ying-Ji Sun
- School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Wen Dai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Qi H, Sun M, Terkeltaub R, Xue X, Li X, Cui L, He Y, Yan F, Sun R, Chen Y, Jia Z, Cheng X, Ma L, Liu T, Dalbeth N, Li C. Response to febuxostat according to clinical subtypes of hyperuricemia: a prospective cohort study in primary gout. Arthritis Res Ther 2023; 25:241. [PMID: 38082308 PMCID: PMC10712161 DOI: 10.1186/s13075-023-03228-y] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND While xanthine oxidase inhibitors target uric acid production, renal urate underexcretion is the predominant subtypes in gout. This study was to compare treatment response to the XOI febuxostat in a gout cohort according to clinical subtypes of hyperuricemia. METHODS A prospective cohort study was conducted to compare the efficacy and safety of febuxostat (initially 20 mg daily, escalating to 40 mg daily if not at target) in 644 gout patients with the three major clinical subtypes for 12 weeks. Hyperuricemia was defined as the renal overload subtype, the renal underexcretion subtype, or the combined subtype based on UUE > or ≤ 600 mg/d/1.73 m2 and FEUA < or ≥ 5.5%. The primary endpoint was the rate of achieving serum urate (SU) < 6 mg/dL at week 12. RESULTS Fewer participants with combined subtype achieved the SU target, 45.5% compared with 64.8% with overload subtype (P = 0.007), and 56.6% with underexcretion subtype (P = 0.022). More participants with combined subtype (82%) had febuxostat escalated to 40 mg than those with overload (62%, P = 0.001) or underexcretion subtype (68%, P = 0.001). In all participants, combined subtype hyperuricemia (OR = 0.64, 95%CI 0.41-0.99, P = 0.048) and baseline SU (OR = 0.74, 95%CI 0.62-0.89, P = 0.001) were independently associated with lower rates of achieving SU target. CONCLUSIONS People with combined subtype have a lower response to febuxostat, compared to those with either overload or underexcretion subtype. Assessment of hyperuricemia subtype may provide useful clinical data in predicting febuxostat response.
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Affiliation(s)
- Han Qi
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Mingshu Sun
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
- Department of Rheumatology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Robert Terkeltaub
- VA San Diego VA Healthcare Center, University of California San Diego, La Jolla, CA, USA
| | - Xiaomei Xue
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xinde Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lingling Cui
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuwei He
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fei Yan
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ruixia Sun
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ying Chen
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhaotong Jia
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaoyu Cheng
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lidan Ma
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tian Liu
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Nicola Dalbeth
- Department of Medicine, University of Auckland, Auckland, New Zealand.
| | - Changgui Li
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China.
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China.
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China.
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China.
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Cheng X, Zhang Y, Zhu M, Sun R, Liu L, Li X. Predicting response to CCRT for esophageal squamous carcinoma by a radiomics-clinical SHAP model. BMC Med Imaging 2023; 23:145. [PMID: 37779188 PMCID: PMC10544369 DOI: 10.1186/s12880-023-01089-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/28/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND Radical concurrent chemoradiotherapy (CCRT) is frequently used as the first-line treatment for patients with locally advanced esophageal cancer. Unfortunately, some patients respond poorly. To predict response to radical concurrent chemoradiotherapy in pre-treatment patients with esophageal squamous carcinoma (ESCC), and compare the predicting efficacies of radiomics features of primary tumor with or without regional lymph nodes, we developed a radiomics-clinical model based on the positioning CT images. Finally, SHapley Additive exPlanation (SHAP) was used to explain the models. METHODS This retrospective study enrolled 105 patients with medically inoperable and/or unresectable ESCC who underwent radical concurrent chemoradiotherapy (CCRT) between October 2018 and May 2023. Patients were classified into responder and non-responder groups with RECIST standards. The 11 recently admitted patients were chosen as the validation set, previously admitted patients were randomly split into the training set (n = 70) and the testing set (n = 24). Primary tumor site (GTV), the primary tumor and the uninvolved lymph nodes at risk of microscopic disease (CTV) were identified as Regions of Interests (ROIs). 1762 radiomics features from GTV and CTV were respectively extracted and then filtered by statistical differential analysis and Least Absolute Shrinkage and Selection Operator (LASSO). The filtered radiomics features combined with 13 clinical features were further filtered with Mutual Information (MI) algorithm. Based on the filtered features, we developed five models (Clinical Model, GTV Model, GTV-Clinical Model, CTV Model, and CTV-Clinical Model) using the random forest algorithm and evaluated for their accuracy, precision, recall, F1-Score and AUC. Finally, SHAP algorithm was adopted for model interpretation to achieve transparency and utilizability. RESULTS The GTV-Clinical model achieves an AUC of 0.82 with a 95% confidence interval (CI) of 0.76-0.99 on testing set and an AUC of 0.97 with a 95% confidence interval (CI) of 0.84-1.0 on validation set, which are significantly higher than those of other models in predicting ESCC response to CCRT. The SHAP force map provides an integrated view of the impact of each feature on individual patients, while the SHAP summary plots indicate that radiomics features have a greater influence on model prediction than clinical factors in our model. CONCLUSION GTV-Clinical model based on texture features and the maximum diameter of lesion (MDL) may assist clinicians in pre-treatment predicting ESCC response to CCRT.
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Affiliation(s)
- Xu Cheng
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, P.R. China
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P.R. China
| | - Yuxin Zhang
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China
| | - Min Zhu
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P.R. China.
- School of Mathematics and Computer Science, Tongling University, Tongling, China.
| | - Ruixia Sun
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, P.R. China
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P.R. China
| | - Lingling Liu
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, P.R. China
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P.R. China
| | - Xueling Li
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, P.R. China.
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P.R. China.
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
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Liang W, Zuo J, Liu M, Su Y, Guo B, Hou J, Xing Q, Peng Y, Fang L, Cao Y, Shan J, Sun R, Zhao J, Wang J. VASN promotes colorectal cancer progression by activating the YAP/TAZ and AKT signaling pathways via YAP. FASEB J 2023; 37:e22688. [PMID: 36468780 DOI: 10.1096/fj.202201181r] [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: 07/25/2022] [Revised: 10/07/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Colorectal cancer (CRC) is one of the most common gastrointestinal malignancies. Vasorin (VASN) has been reported to be critical in tumor development and angiogenesis. However, VASN has not been reported in CRC, and its role is unclear. In this study, VASN expression is upregulated in CRC compared with the normal tissues, and VASN expression positively correlates with N stage and poor overall survival by analysis of different datasets and 32 CRC clinicopathologic samples. Overexpression of VASN significantly promotes CRC cell progression, including proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT), while knockdown of VASN inhibits CRC progression. We found that VASN was associated with the YAP/TAZ and PI3K/AKT pathways by gene set enrichment analysis (GSEA) and gene ontology (GO) analysis. Notably, western blotting, immunofluorescence staining and co-immunofluorescence (co-IP) confirmed that VASN could interact with YAP and activate the YAP/TAZ and PTEN/PI3K/AKT pathways, and knockdown of YAP reversed this effect. Importantly, our findings indicate that VASN interacts with YAP to inhibit YAP phosphorylation and stimulates CRC proliferation, migration, and invasion through activation of the YAP/TAZ-TEAD target gene CTGF and PTEN/PI3K/AKT pathways. Our results also show that knockdown of YAP reverses the cellular phenotype induced by increased VASN. In conclusion, our study reveals that VASN acts as an oncogene to stimulate tumor progression in CRC, providing new insights into the molecular mechanisms of CRC development and representing a possible novel biomarker for CRC.
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Affiliation(s)
- Weiye Liang
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jia Zuo
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Mingkai Liu
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yuling Su
- Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Baoyin Guo
- Department of Pathology, Guangzhou First People's Hospital, Guangzhou, China
| | - Jiangtao Hou
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou University of TCM, Guangzhou, China
| | - Qi Xing
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Yinglong Peng
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Lian Fang
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yihui Cao
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jiajie Shan
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Ruixia Sun
- Bioscience Laboratory, BIOS Bioscience and Technology Limited Company, Guangzhou, China
| | - Jie Zhao
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jian Wang
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China.,Bioscience Laboratory, BIOS Bioscience and Technology Limited Company, Guangzhou, China
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Chen Z, Jiang C, Cheng X, Ma L, Xin Y, Liu T, Sun R. Secondary hypogonadism following hand, foot, and mouth disease in an adult: a case report and review of literature. BMC Infect Dis 2022; 22:56. [PMID: 35033020 PMCID: PMC8760742 DOI: 10.1186/s12879-022-07030-0] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 01/04/2022] [Indexed: 11/29/2022] Open
Abstract
Background Previous reports have described hypogonadism associated with virus infection such as hantavirus, human immunodeficiency virus (HIV) or severe acute respiratory syndrome coronavirus 2 (SARS-COV-2). However, to our best knowledge there has been no case report of secondary hypogonadism following hand, foot, and mouth disease (HFMD). Case presentation A previously healthy 28-year-old man with no history of major physical and psychological trauma, presented with bilateral gynecomastia and erectile dysfunction 2 weeks after HFMD. Laboratory testament showed the level of gonadotropin hormones declined. Imaging examination demonstrated no major abnormal change in pituitary or reproductive system. The diagnosis of hypogonadism was established. Then the patient was ordered to maintain mental health outward of hospital without drug intervention. One month after presentation, his gonadotropin hormone level and sexual desire had recovered, while bilateral gynecomastia and erectile dysfunction symptoms disappeared. Conclusions Physicians should notice the possibility for hypogonadism in adult patients with a recent history of HFMD. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07030-0.
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Affiliation(s)
- Zhaoying Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Chen Jiang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Xiaoyu Cheng
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Lidan Ma
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Ying Xin
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Tian Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Ruixia Sun
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Zhou S, Yu Y, Zhang Z, Ma L, Wang C, Yang M, Cheng X, Liu T, Sun R, Chen Y. Association of obesity, triglyceride-glucose and its derivatives index with risk of hyperuricemia among college students in Qingdao, China. Front Endocrinol (Lausanne) 2022; 13:1001844. [PMID: 36277703 PMCID: PMC9583912 DOI: 10.3389/fendo.2022.1001844] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To analyze and compare the associations of hyperuricemia (HUA) with obesity, triglyceride-glucose (TyG), and its derivatives in college students. To provide early guidance on risk predictors of HUA in college students. METHODS This study was a cross-sectional survey including 23,411 participants (age: 17-20 years). Investigators conducted face-to-face interview surveys and physical examinations. Automated biochemical methods were used to detect biochemical indicators such as serum uric acid (UA). Calculation of obesity, TyG, and their derivatives indices were performed. Logistic regression was used to analyze the relationship between different indexes and hyperuricemia. OR value and 95% CI were also calculated. ROC curve was used for assessing the predictive ability of different indices of hyperuricemia. RESULTS After adjusting for age, SBP, DBP, ALT, AST, TC, BUN, and CREA, multivariate logistic regression showed that the OR value of LAP in the obesity index was higher, especially in women (male OR: 4.347, 95%CI: 3.807, 4.964; female OR: 4.672, 95%CI: 3.800, 5.744). The other three quartiles of TyG derivatives were highly associated with hyperuricemia in men and women compared with the top quartile (all P< 0.05). The risk of hyperuricemia increased with an increase in quartiles. For college students, all indicators could distinguish the presence of hyperuricemia. For men, the area under the curve (AUC) of TyG-WC was the largest (AUC: 0.694; 95%CI: 0.684-0.704; P<0.05), according to the Maximum Youden index 0.290 with cut point value 477.853. In women, TyG-BMI showed a maximum AUC value of 0.702 (95%CI: 0.685-0.719; P<0.05), according to the maximum Youden index of 0.317 with cut point value 132.446. The TyG-WC, TyG-WHtR, TyG-LAP, and LAP indices also had relatively high AUC. CONCLUSION In clinical practice, LAP, TYG, and their related derivatives may be used as sensitive indicators for HUA prediction in college students.
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Affiliation(s)
- Shizhe Zhou
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Medicine, Qingdao University, Qingdao, China
| | - Yajie Yu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Medicine, Qingdao University, Qingdao, China
| | - Zengxiao Zhang
- Department of Medicine, Qingdao University, Qingdao, China
| | - Lidan Ma
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Can Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Min Yang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaoyu Cheng
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tian Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ruixia Sun
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ying Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Ying Chen,
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Zeng P, Si M, Sun RX, Cheng X, Li XY, Chen MB. Prognostic Value of CD9 in Solid Tumor: A Systematic Review and Meta-Analysis. Front Oncol 2021; 11:764630. [PMID: 34868985 PMCID: PMC8639687 DOI: 10.3389/fonc.2021.764630] [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: 09/01/2021] [Accepted: 10/28/2021] [Indexed: 11/13/2022] Open
Abstract
Numerous clinical studies investigated how low expression of CD9 predicts poor prognosis of solid tumor. However, the results were inconclusive. This present meta-analysis was therefore performed to determine the prognostic value of CD9 expression in solid tumors. In this meta-analysis, 25 studies involving 5,555 participants were included; the result showed strong significant associations between declined expression of CD9 and all endpoints: overall survival (OS) (hazard ratio (HR) = 1.88, 95% CI = 1.45-2.43, p < 0.000) and time to progression (TTP) (HR = 2.0, 95% CI = 1.38-2.88, p < 0.000). The subgroup analysis was also performed, which revealed that the associations between CD9 downregulated expression related to poor OS in lung cancer and head and neck cancer. Also, low expression of CD9 was significantly connected with poor TTP in patients with head and neck cancer. The adverse prognostic impact of decreased expression of CD9 was observed in patients of different ethnicities. In conclusion, these results showed that declined expression of CD9 was associated with poor survival in human solid tumors. CD9 may be a valuable prognostic predictive biomarker and a potential therapeutic target in human solid tumors.
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Affiliation(s)
- Ping Zeng
- Department of Radiation Oncology, the First Affiliated Hospital of the USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Meng Si
- Department of Radiation Oncology, the First Affiliated Hospital of the USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rui-xia Sun
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Xu Cheng
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Xiao-yang Li
- Department of Radiation Oncology, the First Affiliated Hospital of the USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Min-bin Chen
- Department of Radiotherapy and Oncology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
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Zhang W, Zhang MY, Wang K, Sun R, Zhao S, Zhang Z, He YP, Yu F. Geometry transformation of ionic surfactants and adsorption behavior on water/ n-decane-interface: calculation by molecular dynamics simulation and DFT study. RSC Adv 2021; 11:28286-28294. [PMID: 35480765 PMCID: PMC9038023 DOI: 10.1039/d1ra04669a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/15/2021] [Indexed: 01/20/2023] Open
Abstract
Understanding the effect of surfactant structure on their ability to modify interfacial properties is of great scientific and industrial interest. In this work, we have synthesized four amide based ionic surfactants under acidic or basic conditions, including CTHA·HCl, CTEA·HCl, CTHA−Na+ and CTEA−Na+. Experiments have proved that the anionic surfactant with polyethylene oxide groups (CTEA−Na+) had the lowest surface tension on the water/n-decane interface. Molecular dynamics simulations have been applied to investigate the structural effect on the adsorption behavior of four different surfactants. The surface tension, interface thickness, interface formation energy, density profiles, order parameters, radial distribution function on the water/n-decane interfaces were calculated and compared. During the equilibrium states, we found that the interface configuration of two cationic surfactants are almost linear while the two anionic surfactants are changed to bending shapes due to the different positions of the hydrophilic head groups. Further DFT study and wavefunction analysis of surfactants have shown that CTEA−Na+ can form stronger vdW interactions with n-decane molecules due to a more neutral electrostatic potential distribution. Meanwhile, the introduction of polyethylene oxide groups has offered more H-bonding sites and resulted in more concentrated H-bonding interactions with water molecules. The difference of weak interactions may contribute to the conformational change and finally affect the interface properties of these ionic surfactants. The difference of weak interactions may contribute to the conformational change and finally affect the interface properties of these ionic surfactants.![]()
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Affiliation(s)
- Wannian Zhang
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China .,State Key Laboratory of Fine Chemicals, Ningbo Institute of Dalian University of Technology No. 26 Yucai Road, Jiangbei District Ningbo 315016 P. R. China .,Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Ming-Yuan Zhang
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Kai Wang
- State Key Laboratory of Fine Chemicals, Ningbo Institute of Dalian University of Technology No. 26 Yucai Road, Jiangbei District Ningbo 315016 P. R. China .,Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Ruixia Sun
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Shanlin Zhao
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China .,Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Zhiqiang Zhang
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China
| | - Yu-Peng He
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China .,State Key Laboratory of Fine Chemicals, Ningbo Institute of Dalian University of Technology No. 26 Yucai Road, Jiangbei District Ningbo 315016 P. R. China .,Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
| | - Fang Yu
- State Key Laboratory of Fine Chemicals, Ningbo Institute of Dalian University of Technology No. 26 Yucai Road, Jiangbei District Ningbo 315016 P. R. China .,Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Petrochemical University Dandong Lu West 1 Fushun 113001 Liaoning P. R. China +86-2456860548
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Xue X, Liu Z, Li X, Lu J, Wang C, Wang X, Ren W, Sun R, Jia Z, Ji X, Chen Y, He Y, Ji A, Sun W, Zhang H, Merriman TR, Li C, Cui L. The efficacy and safety of citrate mixture vs sodium bicarbonate on urine alkalization in Chinese primary gout patients with benzbromarone: a prospective, randomized controlled study. Rheumatology (Oxford) 2021; 60:2661-2671. [PMID: 33211886 PMCID: PMC8213434 DOI: 10.1093/rheumatology/keaa668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/22/2020] [Indexed: 12/27/2022] Open
Abstract
Objectives To compare the efficacy and safety of citrate mixture and sodium bicarbonate on urine alkalization in gout patients under benzbromarone treatment. Methods A prospective, randomized, parallel controlled trial was conducted among 200 gout patients in the dedicated gout clinic of the Affiliated Hospital of Qingdao University. The participants were randomly divided into two groups (1:1), sodium bicarbonate group (3 g/day) and citrate mixture group (7 g/day). All patients were prescribed with 25 mg/day benzbromarone at initiation and maintained at a dose of 50 mg/day. Clinical and biochemical data were collected at each follow-up time point (baseline, weeks 2, 4, 8 and 12). Results A total of 182 patients completed the 12-week urine alkalization study. The urine pH value of both groups increased significantly from the baseline to the final follow-up time point (sodium bicarbonate group, 5.50–6.00, P < 0.05; citrate mixture group, 5.53–5.93, P < 0.05). While the comparisons regarding urine pH between treatment groups showed no significant differences for each time point. The estimated glomerular filtration rate (eGFR) dropped significantly after 12 weeks’ trial in the sodium bicarbonate group (P < 0.01), while it was comparable between baseline and the last follow-up (P > 0.05) in the citrate mixture group. Results of urine analysis showed that the incident rate of occult blood in the sodium bicarbonate group was higher than that in the citrate mixture group (38 vs 24%, P < 0.05), accompanied by a similar occurrence of kidney stones. After 12-week follow-up, the frequency of twice gout flare in the citrate mixture group was significantly lower than that in sodium bicarbonate group (4 vs 12%, P = 0.037). No treatment-emergent adverse events occurred. Conclusion The efficacy of citrate mixture on urine alkalization is comparable to sodium bicarbonate under benzbromarone treatment without significant adverse events. Citrate mixture is superior to sodium bicarbonate in lowering the incidence of urine occult blood and the frequency of gout attacks. Trial registration Registered with ChiCTR (http://www.chictr.org.cn), No. ChiCTR1800018518.
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Affiliation(s)
- Xiaomei Xue
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Zhen Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Xinde Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Jie Lu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China.,Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Can Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Xuefeng Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Wei Ren
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Ruixia Sun
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Zhaotong Jia
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Xiaopeng Ji
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Ying Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Yuwei He
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Aichang Ji
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
| | - Wenyan Sun
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Hui Zhang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Tony R Merriman
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China.,Department of Biochemistry, University of Otago, Dunedin, New Zealand.,Division of Clinical Immunology and Rheumatology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Changgui Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China.,Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Lingling Cui
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Qingdao, China
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10
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Li G, Huang G, Sun R, Curran DP, Dai W. Regioselective Radical Borylation of α,β-Unsaturated Esters and Related Compounds by Visible Light Irradiation with an Organic Photocatalyst. Org Lett 2021; 23:4353-4357. [PMID: 34003657 DOI: 10.1021/acs.orglett.1c01270] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Radical hydroboration reactions have only recently been reported and are still rare. Here we describe a photoredox radical hydroboration of α,β-unsaturated esters, amides, ketones, and nitriles with NHC-boranes that uses only an organocatalyst and visible light. The conditions are mild, the substrate scope is broad, and the α/β regioselectivity is high. The reaction requires only the organocatalyst; there is no costly metal, and there are no other additives (base, cocatalyst, initiator).
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Affiliation(s)
- Guosong Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guanwang Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ruixia Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Dennis P Curran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15208, United States
| | - Wen Dai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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11
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Cheng X, Liu T, Ma L, Liu Z, Xin Y, Jia Z, Chen Y, Li C, Sun R. Prothrombotic effects of high uric acid in mice via activation of MEF2C-dependent NF-κB pathway by upregulating let-7c. Aging (Albany NY) 2020; 12:17976-17989. [PMID: 32960786 PMCID: PMC7585100 DOI: 10.18632/aging.103540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 01/11/2020] [Accepted: 04/17/2020] [Indexed: 01/24/2023]
Abstract
Serum uric acid is reportedly associated with thrombosis development. However, still unclear is the mechanism of high uric acid in thrombosis with the involvement of let-7c. In an aim to fill this void, we conducted this study by treating mice and human umbilical vein endothelial cells with high uric acid. Analysis indicated that let-7c was upregulated in hyperuricemia patients as well as in mice and human umbilical vein endothelial cells treated with high uric acid. Furthermore, high uric acid inhibited myocyte enhancer factor-2C, but activated nuclear factor-kappa B pathway in human umbilical vein endothelial cells. Then the targeting relationship between let-7c and myocyte enhancer factor-2C was verified. On the one hand, high uric acid shortened activated partial thromboplastin time and prothrombin time of mice and declined tissue plasminogen activator level. Additionally, the treatment prolonged thrombin time and elevated the levels of thrombosis related molecules or proteins such as Fibrinogen and D-dimer. Nevertheless, these alternations could be reversed by inhibition of let-7c and nuclear factor-kappa B pathway or overexpressing myocyte enhancer factor-2C. To sum up, our results uncovered the pro-thrombotic effect of high uric acid in mice by activating myocyte enhancer factor-2C-dependent nuclear factor-kappa B pathway via let-7c upregulation.
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Affiliation(s)
- Xiaoyu Cheng
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Tian Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Lidan Ma
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Zhen Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Ying Xin
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Zhaotong Jia
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Ying Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Changgui Li
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
| | - Ruixia Sun
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China
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12
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Sun R, Lu J, Li H, Cheng X, Xin Y, Li C. Evaluation of febuxostat initiation during an acute gout attack: A prospective, randomized clinical trial. Joint Bone Spine 2020; 87:461-466. [PMID: 32302693 DOI: 10.1016/j.jbspin.2020.03.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 03/31/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Urate-lowering treatment (ULT) is recommended in gout management. However, initiation of ULT during an acute gout flare is still inconclusive. This study aimed to evaluate the efficacy and safety of the ULT febuxostat administered at initiation of an acute gout attack. METHODS A prospective randomized controlled clinical trial was conducted for 12 weeks in primary gout patients who were admitted with acute gout attacks. Subjects were randomly assigned to the febuxostat group in which febuxostat, 40mg daily, was administered in the primary care setting for attacks, or to the control group in which febuxostat, 40mg daily, was administered after the attacks. All patients received adequate anti-inflammatory and analgesic therapies. Serum urate (SU) levels were monitored throughout the study. Pain, measured using a visual analogue scale (VAS), and gout recurrence rate were used as primary outcomes. Flare-related inflammation biomarkers were selected as secondary outcomes. RESULTS Fifty-two patients completed the study (febuxostat group: n=28; control group: n=24). No significant differences were detected in VAS scores between the two groups over the first 14-day observation period (P>0.05). Administration of febuxostat decreased SU levels significantly during the first 2-week period. However, the gout recurrent rate or gout flare-related inflammation indicators did not change in the febuxostat or control groups. Treatment-related adverse events were mild and similar between groups. CONCLUSION Initiation of the urate-lowering drug febuxostat during an acute gout attack caused no significant difference in daily pain, recurrent flares, or adverse effects. The treatment significantly decreased SU levels in the early stage and might have potential long-term benefits in these patients.
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Affiliation(s)
- Ruixia Sun
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China
| | - Jie Lu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China; Institute of Metabolic Diseases, Qingdao University, 266003 Qingdao, China
| | - Hui Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China
| | - Xiaoyu Cheng
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China
| | - Ying Xin
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China
| | - Changgui Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, 266003 Qingdao, China; Institute of Metabolic Diseases, Qingdao University, 266003 Qingdao, China.
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13
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Liang N, Sun M, Sun R, Xu T, Cui L, Wang C, Ma L, Cheng X, Xue X, Sun W, Yuan X, Zhang H, Li H, He Y, Ji A, Wu X, Li C. Baseline urate level and renal function predict outcomes of urate-lowering therapy using low doses of febuxostat and benzbromarone: a prospective, randomized controlled study in a Chinese primary gout cohort. Arthritis Res Ther 2019; 21:200. [PMID: 31477161 PMCID: PMC6719374 DOI: 10.1186/s13075-019-1976-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 08/16/2019] [Indexed: 02/07/2023] Open
Abstract
Background Low doses of febuxostat or benzbromarone are widely used in Asian countries, but lacking studies to compare the efficacy and safety of the two urate-lowering drugs. Methods To compare the efficacy and safety of low-dose febuxostat with low-dose benzbromarone in patients with primary gout, a randomized controlled, open-label trial was performed among male patients with primary gout for urate-lowering therapy (ULT) in a dedicated gout clinic in China. Randomization was carried out by a third-party institution according to random number table. Patients were randomly assigned 1:1 to febuxostat group (Feb group) (20 mg daily) or benzbromarone group (Ben group) (25 mg daily) and treated for 12 weeks. General information and biochemical data were collected at baseline and at every visit monthly. Clinical characteristics before and after the ULT were analyzed in the two groups by SPSS and EmpowerStats software. Results Two hundred forty patients were enrolled and randomized in the two groups, with 214 patients completing 12 weeks’ ULT (105 in the Feb group and 109 in the Ben group). After 12 weeks, substantial percentages of patients in both Feb and Ben group achieved the target serum uric acid (sUA) (< 360 μmol/L) and serum urate levels were reduced significantly for both groups (Feb 39.5% and 156.83 μmol/L vs. Ben 35.7% and 163.99 μmol/L). Multivariate analysis suggests baseline sUA level and renal function were associated with the outcome of the rate of achieving target sUA (RAT). Sub-group analysis suggests low doses of febuxostat and benzbromarone rendered better RAT for patients with sUA < 540 μmol/L and creatinine clearance rate (Ccr) ≤ 110 mL min−1 1.73 m−2 at baseline. The drugs were well tolerated, and the incidence of gout flares in Feb group was similar with that in Ben group (22.85% vs. 33.94%). Conclusion Overall, febuxostat 20 mg daily and benzbromarone 25 mg daily reduced sUA, and gout patients with sUA level < 540 μmol/L or Ccr ≤ 110 mL min−1 1.73 m−2 at baseline had better chance to achieve target uric acid levels. The current study suggests sUA level and renal function are key factors to consider when recommending low doses of febuxostat and benzbromarone to gout patients. Trial registration Registered with ChiCTR, No. ChiCTR1800019352 (retrospectively registered).
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Affiliation(s)
- Nan Liang
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China.,Qingdao University, Qingdao, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mingshu Sun
- Department of Rheumatology and Clinical Immunology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ruixia Sun
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ting Xu
- Department of Geratology, the 971th Hospital of PLA, Qingdao, China
| | - Lingling Cui
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Can Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lidan Ma
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaoyu Cheng
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaomei Xue
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China.,Qingdao University, Qingdao, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wenyan Sun
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xuan Yuan
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Hui Zhang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Hailong Li
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Yuwei He
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China.,Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Aichang Ji
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China.,Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xinjiang Wu
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China.
| | - Changgui Li
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, China. .,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China. .,Institute of Metabolic Diseases, Qingdao University, Qingdao, China.
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Chen XY, Sun RX, Zhang WY, Liu T, Zheng YH, Wu Y. [Molecular mechanisms and relationship of M2-polarized macrophages with early response in multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2018; 38:480-486. [PMID: 28655090 PMCID: PMC7342963 DOI: 10.3760/cma.j.issn.0253-2727.2017.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
目的 探讨替代活化型巨噬细胞(M2 MΦ)和多发性骨髓瘤(MM)早期治疗反应的关系及其在发病机制中的可能作用。 方法 采用免疫组化法标记240例MM患者骨髓标本中的MΦ;建立体外M2 MΦ诱导培养体系,构建Transwell共培养模型与RPMI 8226和U266细胞共培养,CCK-8法检测M2 MΦ对细胞增殖的影响,流式细胞术检测对地塞米松(1 µ mol/L)诱导骨髓瘤细胞凋亡的影响,ELISA法检测对TNF-α和IL-6表达的影响,real time PCR法检测对趋化因子、血管内皮生长因子(VEGF)及其受体表达的影响。 结果 ①依据骨髓组织M2 MΦ浸润程度将患者分为高浸润组(92例)和低浸润组(148例),高浸润组患者早期治疗有效率明显低于低浸润组,差异有统计学意义(23.9%对73.0%,χ2=60.31,P<0.001)。②培养24、36 h,共培养组细胞增殖能力较对照组显著上升:M2 MΦ+RPMI 8226细胞组与对照组比较,P值分别为0.005、0.020;M2 MΦ+U266细胞与对照组比较,P值分别为0.030、0.020。③地塞米松诱导后,共培养组与对照组比较,RPMI 8226细胞凋亡率下降(29.0%对71.0%,t=4.97,P=0.008),U266细胞凋亡率也下降(24.9%对67.7%,t=6.99,P=0.002)。④共培养48 h后,与对照组比较,加入M2 MΦ后可促进RPMI 8226和U266细胞分泌IL-6、TNF-α,促进表达CCL2、CCL3、CCR2、CCR5、VEGFA、VEGFR-1和VEGFR-2。 结论 MM患者骨髓组织M2 MΦ浸润程度和早期治疗反应相关。M2 MΦ通过促进骨髓瘤细胞分泌系列炎症因子、趋化因子和相关受体的表达,从而促进骨髓瘤细胞增殖以及保护骨髓瘤细胞免于凋亡。
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Affiliation(s)
- X Y Chen
- Department of Hematology and Research Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
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Bian G, Yu C, Liu L, Fang C, Chen K, Ren P, Zhang Q, Liu F, Zhang K, Xue Q, Xiang J, Guo H, Song J, Zhao Y, Wu W, Chung SK, Sun R, Ju G, Wang J. Sphingosine 1-phosphate stimulates eyelid closure in the developing rat by stimulating EGFR signaling. Sci Signal 2018; 11:11/553/eaat1470. [DOI: 10.1126/scisignal.aat1470] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In many mammals, the eyelids migrate over the eye and fuse during embryogenesis to protect the cornea from damage during birth and early life. Loss-of-function mutations affecting the epidermal growth factor receptor (EGFR) signaling pathway cause an eyes-open-at-birth (EOB) phenotype in rodents. We identified an insertional mutation in Spinster homolog 2 (Spns2) in a strain of transgenic rats exhibiting the EOB phenotype. Spns2, a sphingosine 1-phosphate (S1P) transporter that releases S1P from cells, was enriched at the tip of developing eyelids in wild-type rat embryos. Spns2 expression or treatment with S1P or any one of several EGFR ligands rescued the EOB Spns2 mutant phenotype in vivo and in tissue explants in vitro and rescued the formation of stress fibers in primary keratinocytes from mutants. S1P signaled through the receptors S1PR1, S1PR2, and S1PR3 to activate extracellular signal–regulated kinase (ERK) and EGFR-dependent mitogen-activated protein kinase kinase kinase 1 (MEKK1)–c-Jun signaling. S1P also induced the nuclear translocation of the transcription factor MAL in a manner dependent on EGFR signaling. MAL and c-Jun stimulated the expression of the microRNAs miR-21 and miR-222, both of which target the metalloprotease inhibitor TIMP3, thus promoting metalloprotease activity. The metalloproteases ADAM10 and ADAM17 stimulated EGFR signaling by cleaving a membrane-anchored form of EGF to release the ligand. Our results outline a network by which S1P transactivates EGFR signaling through a complex mechanism involving feedback between several intra- and extracellular molecules to promote eyelid fusion in the developing rat.
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Jia Y, Sun R, Ding X, Cao C, Yang X. Bisphenol S Triggers the Migration and Invasion of Pheochromocytoma PC12 Cells via Estrogen-Related Receptor α. J Mol Neurosci 2018; 66:188-196. [PMID: 30140998 DOI: 10.1007/s12031-018-1148-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/27/2018] [Indexed: 12/13/2022]
Abstract
Pheochromocytoma (PCC) is a tumor of the adrenal medulla for which surgical resection is the only therapy approach. Risk factors responsible for the tumorigenesis and progression of PCC are not well illustrated. Our present study revealed that an industrial chemical, bisphenol S (BPS), can promote the migration and invasion of PCC PC12 cells, which was evidenced by the upregulation of fibronectin (FN) and matrix metalloproteinases (MMP-2 and MMP-9). The inhibitor of estrogen-related receptor α (ERRα), while not estrogen receptor α/β (ERα/β) or G protein-coupled estrogen receptor (GPER), can attenuate BPS-induced cell migration. Mechanically, BPS can increase the binding between ERRα and promoter of FN1 and then induce the expression of FN in PC12 cells. Further, BPS can induce the expression of miR-10b in PC12 cells via ERRα. The upregulated miR-10b inhibited the expression of KLF4, which can suppress the migration and invasion of cancer cells. BPS can trigger the mRNA and protein expression of ERRα in PC12 cells via a time-dependent manner. Collectively, our study revealed that nanomolar BPS can trigger the migration and invasion of PC12 cells via activation and upregulation of ERRα.
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Affiliation(s)
- Yuefeng Jia
- Department of Urology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Ruixia Sun
- Department of Endocrinology and Metabology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Xuemei Ding
- Department of Surgery, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China
| | - Caixia Cao
- Department of Endocrinology and Metabology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China.
| | - Xuecheng Yang
- Department of Urology, The Affiliated Hospital of Qingdao University, No.16 of Jiangsu Road, Qingdao, 266003, China.
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Sun R, Zhang W, Zhong H, Wang L, Tang N, Liu Y, Zhao Y, Zhang T, He F. Calcimimetic R568 reduced the blood pressure and improved aortic remodeling in spontaneously hypertensive rats by inhibiting local renin-angiotensin system activity. Exp Ther Med 2018; 16:4089-4099. [PMID: 30402152 PMCID: PMC6200994 DOI: 10.3892/etm.2018.6734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/27/2018] [Indexed: 11/06/2022] Open
Abstract
Hypertension is a cardiovascular disease that seriously affects human health. Activation of the calcium-sensing receptor (CaSR) inhibits cyclic adenosine monophosphate (cAMP) formation by increasing [Ca2+]i and subsequently inhibiting renin release. The renin-angiotensin system (RAS) plays an important role in the development of essential hypertension (EH). The purpose of this study was to determine the effects of NPSR568 (R568)-activated CaSR on blood pressure (BP), proliferation, and remodeling of vascular smooth muscle cells, and the activity of the RAS in spontaneously hypertensive rats (SHRs). In this study, we treated SHR and Wistar-Kyoto rats with R568 for 8 weeks. The tail-cuff method was used to assess rat BP weekly. Morphological changes in the thoracic aorta were evaluated with hematoxylin-eosin and Masson staining. Western blotting and immunohistochemistry were used to detect the expression of RAS-related proteins and proliferative remodeling proteins in the thoracic aorta. An enzyme-linked immunosorbent assay was used to detect the content of cAMP, the RAS, and the CaSR in plasma and the thoracic aorta. Finally, we found that treatment with R568 for 8 weeks reduced the BP and inhibited arterial vascular proliferation remodeling in SHRs. R568 administration significantly suppressed the activity of local RAS in the thoracic aortas of SHRs. Moreover, R568 treatment reversed the low expression of CaSR in SHRs. R568 may serve as an effective strategy against EH.
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Affiliation(s)
- Ruixia Sun
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Wenwen Zhang
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China.,Department of Emergency and Critical Care Medicine, The First Affiliated Hospital of Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Hua Zhong
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Lamei Wang
- Centre of Medical Functional Experiments, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Na Tang
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Yongmin Liu
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Yongli Zhao
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Tian Zhang
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Fang He
- Department of Pathophysiology/Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
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Sun R, Hong KH, Lv Z, Ding X, Wu X, Yu F. Synthesis and Surface Properties of a Novel Anionic Gemini Surfactant using Dioxaoctane as a Linking Group. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruixia Sun
- College of Chemistry, Chemical Engineering and Environmental Engineering; Liaoning Shihua University, Dandong Lu West 1; Fushun Liaoning 113001 China
| | - Kwon Ho Hong
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, College of Pharmacy; University of Minnesota; Minneapolis MN 55414 USA
| | - Zhenbo Lv
- College of Chemistry, Chemical Engineering and Environmental Engineering; Liaoning Shihua University, Dandong Lu West 1; Fushun Liaoning 113001 China
| | - Xiaoguang Ding
- College of Computer and Communication Engineering; Liaoning Shihua University, Dandong Lu West 1; Fushun Liaoning 113001 China
| | - Xuedong Wu
- Forencic Science Department; Guangdong Police College; Guangzhou Guangdong 510230 China
| | - Fang Yu
- College of Chemistry, Chemical Engineering and Environmental Engineering; Liaoning Shihua University, Dandong Lu West 1; Fushun Liaoning 113001 China
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Fang C, Bian G, Ren P, Xiang J, Song J, Yu C, Zhang Q, Liu L, Chen K, Liu F, Zhang K, Wu C, Sun R, Hu D, Ju G, Wang J. S1P transporter SPNS2 regulates proper postnatal retinal morphogenesis. FASEB J 2018; 32:3597-3613. [DOI: 10.1096/fj.201701116r] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chao Fang
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Ganlan Bian
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Pan Ren
- Department of Plastic SurgeryTangdu HospitalXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Jie Xiang
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Jun Song
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Caiyong Yu
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Qian Zhang
- Department of NeurologyHainan Branch of Chinese People's Liberation Army General HospitalSanyaChina
| | - Ling Liu
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Kun Chen
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Fangfang Liu
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Kun Zhang
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Chunfeng Wu
- BIOS LaboratoryBIOS Bioscience and Technology Limited CompanyGuangzhouChina
| | - Ruixia Sun
- BIOS LaboratoryBIOS Bioscience and Technology Limited CompanyGuangzhouChina
| | - Dan Hu
- Department of OphthalmologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Gong Ju
- Department of NeurobiologyXijing HospitalFourth Military Medical UniversityXi'anChina
| | - Jian Wang
- BIOS LaboratoryBIOS Bioscience and Technology Limited CompanyGuangzhouChina
- Institutes for Life Sciences and School of MedicineSouth China University of TechnologyGuangzhouChina
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Ma L, Sun R, Jia Z, Zou Y, Xin Y, Cheng X, Liu T, Cui L, Liu Z, Wu X, Li C. Clinical characteristics associated with subcutaneous tophi formation in Chinese gout patients: a retrospective study. Clin Rheumatol 2018; 37:1359-1365. [PMID: 29354873 DOI: 10.1007/s10067-017-3969-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 12/27/2022]
Abstract
The objective of this study is to analyze clinical characteristics associated with the formation of subcutaneous tophi among Chinese gout patients. It was a retrospective outpatient cohort study. Five thousand six hundred ninety-three gout patients treated at the Affiliated Hospital of Qingdao University from March 2011 to February 2016 were included and divided into the tophus group and non-tophus group according to the presence of megascopic tophus. Relevant clinical information and biochemical parameters were analyzed to identify potential risk factors for the incidence of subcutaneous tophi. There are significant difference (P < 0.05) between the tophus and non-tophus groups in gender, family history, exercise, incidence of obesity, hypertension, renal dysfunction, kidney stone, coronary heart disease, and upper limb joint involvement. Between the two groups, significant difference (P < 0.01) was detected in the onset age (43.80 ± 13.82 years vs. 45.40 ± 13.77 years), duration of disease (10.28 ± 7.54 years vs. 5.11 ± 6.06 years), number of joint involved (3.11 ± 2.15 vs. 1.81 ± 1.35), systolic pressure (138.53 ± 19.46 mmHg vs. 133.87 ± 17.93 mmHg), diastolic pressure (89.55 ± 12.73 mmHg vs. 87.48 ± 11.77 mmHg), serum uric acid (487.15 ± 120.13 μmol/L vs. 458.89 ± 119.04 μmol/L), creatinine (93.87 ± 54.19 μmol/L vs. 85.51 ± 37.71 μmol/L), and creatinine clearance rate (Ccr) (93.05 ± 48.7 mL/min vs. 106.61 ± 51.76 mL/min). Logistic regression analysis suggests that duration of disease, number of joints involved, involvement of upper limb joints, kidney stones, diastolic pressure, and serum uric acid are associated with the subcutaneous tophi formation, while exercise and obesity are protective factors. The present study has identified several clinical parameters (such as duration of disease, involvement of upper limb joints, involved joints, kidney stone, hypertension) as risk factors for the incidence of subcutaneous tophi, which provides insights into the treatment and prevention of tophus.
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Affiliation(s)
- Lidan Ma
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
- Qingdao University, 308 Ningxia Road, Qingdao, Shandong, China
| | - Ruixia Sun
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Zhaotong Jia
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Yaowu Zou
- Shandong Provincial Key Laboratory of Metabolic Diseases, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Ying Xin
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Xiaoyu Cheng
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Tian Liu
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Lingling Cui
- Shandong Provincial Key Laboratory of Metabolic Diseases, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Zhen Liu
- Shandong Provincial Key Laboratory of Metabolic Diseases, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China
| | - Xinjiang Wu
- Shandong Provincial Key Laboratory of Metabolic Diseases, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China.
| | - Changgui Li
- The Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China.
- Shandong Provincial Key Laboratory of Metabolic Diseases, The Affiliated Hospital of Qingdao University, 16 Jiangsu Rd, Qingdao, 266003, China.
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21
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Fang T, Lin J, Wang Y, Chen G, Huang J, Chen J, Zhao Y, Sun R, Liang C, Liu B. Tetraspanin-8 promotes hepatocellular carcinoma metastasis by increasing ADAM12m expression. Oncotarget 2018; 7:40630-40643. [PMID: 27270327 PMCID: PMC5130032 DOI: 10.18632/oncotarget.9769] [Citation(s) in RCA: 27] [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: 10/06/2015] [Accepted: 04/18/2016] [Indexed: 01/03/2023] Open
Abstract
Recent evidence indicates that tetraspanin-8 (TSPAN8) promotes tumor progression and metastasis. In this study, we explored the effects of TSPAN8 and the molecular mechanisms underlying hepatocellular carcinoma (HCC) metastasis using various HCC cell lines, tissues from 149 HCC patients, and animal models of HCC progression. We showed that elevated expression of TSPAN8 promoted HCC invasion in vitro and metastasis in vivo, but did not influence HCC cell proliferation in vitro. Increased TSPAN8 expression in human HCC was predictive of poor survival, and multivariate analyses indicated TSPAN8 expression to be an independent predictor for both postoperative overall survival and relapse-free survival. Importantly, TSPAN8 enhanced HCC invasion and metastasis by increasing ADAM12m expression. We therefore conclude that TSPAN8 and ADAM12m may be useful therapeutic targets for the prevention of HCC progression and metastasis.
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Affiliation(s)
- Tingting Fang
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
| | - Jiajia Lin
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
| | - Yanru Wang
- Laboratory of Tumor Immunology, Department of Anatomy, Histology, and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, P. R. China
| | - Guangnan Chen
- The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Jing Huang
- Laboratory of Tumor Immunology, Department of Anatomy, Histology, and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, P. R. China
| | - Jie Chen
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
| | - Yan Zhao
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
| | - Ruixia Sun
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
| | - Chunmin Liang
- Laboratory of Tumor Immunology, Department of Anatomy, Histology, and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, P. R. China
| | - Binbin Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, P. R. China
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Lu J, Hou X, Yuan X, Cui L, Liu Z, Li X, Ma L, Cheng X, Xin Y, Wang C, Zhang K, Wang X, Ren W, Sun R, Jia Z, Tian Z, Mi QS, Li C. Knockout of the urate oxidase gene provides a stable mouse model of hyperuricemia associated with metabolic disorders. Kidney Int 2017; 93:69-80. [PMID: 28729031 DOI: 10.1016/j.kint.2017.04.031] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 01/25/2023]
Abstract
The urate oxidase (Uox) gene encodes uricase that in the rodent liver degrades uric acid into allantoin, forming an obstacle for establishing stable mouse models of hyperuricemia. The loss of uricase in humans during primate evolution causes their vulnerability to hyperuricemia. Thus, we generated a Uox-knockout mouse model on a pure C57BL/6J background using the transcription activator-like effector nuclease (TALEN) technique. These Uox-knockout mice spontaneously developed hyperuricemia (over 420 μmol/l) with about 40% survival up to 62 weeks. Renal dysfunction (elevated serum creatinine and blood urea nitrogen) and glomerular/tubular lesions were observed in these Uox-knockout mice. Male Uox-knockout mice developed glycol-metabolic disorders associated with compromised insulin secretion and elevated vulnerability to streptozotocin-induced diabetes, whereas female mice developed hypertension accompanied by aberrant lipo-metabolism. Urate-lowering drugs reduced serum uric acid and improved hyperuricemia-induced disorders. Thus, uricase knockout provides a suitable mouse model to investigate hyperuricemia and associated disorders mimicking the human condition, suggesting that hyperuricemia has a causal role in the development of metabolic disorders and hypertension.
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Affiliation(s)
- Jie Lu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xu Hou
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xuan Yuan
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Lingling Cui
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Zhen Liu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xinde Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Lidan Ma
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaoyu Cheng
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ying Xin
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Can Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Keke Zhang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xuefeng Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Wei Ren
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Ruixia Sun
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhaotong Jia
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zibin Tian
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qing-Sheng Mi
- Henry Ford Immunology Program, Detroit, Michigan, USA; Department of Dermatology and Department of Internal Medicine, Henry Ford Health System, Detroit, Michigan, USA.
| | - Changgui Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China; Institute of Metabolic Diseases, Qingdao University, Qingdao, China; Department of Endocrinology and Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China.
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Ma LD, Sun RX, Xin Y, Wang Y, Li CG, Liu T, Cheng XY, Jia ZT. [Clinical characteristics in gout patients with different body mass index]. Zhonghua Nei Ke Za Zhi 2017; 56:353-357. [PMID: 28460506 DOI: 10.3760/cma.j.issn.0578-1426.2017.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Obesity is one of the risk factors for gout. The aim of the present study was to evaluate clinical characteristics of gout patients with different BMI. Methods: A total of 5 104 patients with gout were enrolled and divided into three groups according to the BMI. The clinical information was collected and relevant biochemical indices were detected. SPSS software was applied for the statistical analyses. Results: There were significant differences in the ratios of gender, regular exercise, hypertension, tophus, renal insufficiency, hyperlipidemia, impaired glucose metabolism, liver dysfunction among the three groups (all P<0.01). The onset age in overweight [45(36, 55) years] and obese subjects [40(31, 50) years] were earlier than that of the normal weight subjects [50(38, 61) years]. Moreover, waist circumstances [103(99, 108) cm and 94 (90, 98) cm vs 87 (82, 91) cm], systolic pressure [130 (120, 145) mmHg (1 mmHg=0.133 kPa)and 130(120, 140)mmHg vs 128(115, 140) mmHg], diastolic pressure [90 (80, 100) mmHg and 85 (80, 92) mmHg vs 80 (79, 90) mmHg], fasting blood glucose [5.77 (5.30, 6.44) mmol/L and 5.65 (5.19, 6.26) mmol/L vs 5.55 (5.10, 6.15) mmol/L], TG [2.10 (1.46, 3.04) mmol/L and 1.88 (1.35, 2.78) mmol/L vs 1.52 (1.07, 2.39) mmol/L], TC [5.20 (4.55, 5.93) mmol/L and 5.07 (4.46, 5.75) mmol/L vs 4.95 (4.27, 5.65) mmol/L], serum uric acid [483(418, 552) μmol/L and 461(395, 524) μmol/L vs 440 (368, 517) μmol/L], ALT [30 (21, 46) U/L and 25 (18, 36) U/L vs 21 (14, 29) U/L], AST [21(17, 28) U/L and 20 (17, 26) U/L vs 20 (6, 25) U/L], the number of joints involved [2(1, 3)joints and 2(1, 2) joints vs 1(1, 2) joints] in the overweight and obese groups were higher than those in the normal weight group ( all P<0.01). There were no statistical differences in family history, involvement of upper limb joints, kidney stones and coronary heart disease among the three groups (all P>0.05). Conclusions: Obesity is associated with an earlier age of gout onset.With the increase of BMI, the blood pressures, glucose, lipid, serum uric acid, liver transaminase levels and the number of involved joints increased gradually. Cautions should be taken in treating patients with different BMI.
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Affiliation(s)
- L D Ma
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
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Sun RX, Zhao Y, Liu J. [Intratympatic budesonide injection for treatment of refractorysudden sensorineural hearing loss]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:972-977. [PMID: 29771066 DOI: 10.13201/j.issn.1001-1781.2016.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Indexed: 02/05/2023]
Abstract
Objective:To investigate intratympanic steroid injection for treatment of sudden sensorineural hearing loss after failure of initial systemic therapy,and discuss the role of steroid in refractory sudden sensorineural hearing loss.Method:We included 90 patients who did not response to initial systemic therapy of sudden hearing loss.This research adopted the randomized,controlled trial of clinical research.Ninety qualified patients were divided into 3 groups,30 for each group,intratympanic budesonide for experimental group,dexamethasone for control group-1 while control group-2 did not take intratympanic steroid injection but continue another round of systemic therapy.Intratympanic injection was performed 3 times a week and last for 2 weeks.Alprostadil,mecobalamin,ginkgo biloba extract injection,PNS injection and intravenous hyperbaric oxygen fluid were used for consecutive 10 days in the control group-2.Pure tone audiometry and speech Discrimination Score was retaken at the end of each therapy.Result:The results show that the average PTA of damaged frequencies improved more than 10 dB was considered significant,we had 26.7%(8/30) patients meet this criteria in experiment group,30.0%(9/30) in the control group-1 and 6.7%(2/30) in the control group-2.And the recovery rate between these 3 groups is statistically significant(P<0.05),the average PTA improvement in the experimental group,control group-1 and control-2 was(5.0±11.1)dB,(4.2±12.5)dB and (0±3.33)dB respectively,P<0.05,control group-2 was significantly different from control group-1 and experimental group.The Speech Discrimination Score improvement rates in the experimental group,control group-1 and control-2 was 16.7%,12.0% and 4.2% respectively,but the difference in those 3 groups was not significant.Conclusion:Budesonide intratympanic injection is a save method in treating refractory sudden hearing loss ,and it is as effective as dexamethasone.Intratympanic steroids could be an option for refractory sudden sensorineural hearing loss patients.
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Affiliation(s)
- R X Sun
- Department of Otolaryngology Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - Y Zhao
- Department of Otolaryngology Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - J Liu
- Chengdu Hospital of Chinese People Armed Police Forces
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Sun RX, Zhang CH, Zheng YQ, Zong YC, Yu XD, Huang P. Molecular identification and genetic variation of varieties of Styphnolobium japonicum (Fabaceae) using SRAP markers. Genet Mol Res 2016; 15:gmr7837. [PMID: 27173318 DOI: 10.4238/gmr.15027837] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Thirty-four Styphnolobium japonicum varieties were analyzed using sequence-related amplified polymorphism (SRAP) markers, to investigate genetic variation and test the effectiveness of SRAP markers in DNA fingerprint establishment. Twelve primer pairs were selected from 120 primer combinations for their reproducibility and high polymorphism. We found a total of 430 amplified fragments, of which 415 fragments were considered polymorphic with an average of 34.58 polymorphic fragments for each primer combination. The percentage of polymorphic fragments was 96.60%, and four primer pairs showed 100% polymorphism. Moreover, simple matched coefficients ranged between 0.68 and 0.89, with an average of 0.785, indicating that the genetic variation among varieties was relatively low. This could be because of the narrow genetic basis of the selected breeding material. Based on the similarity coefficient value of 0.76, the varieties were divided into four major groups. In addition, abundant and clear SRAP fingerprints were obtained and could be used to establish DNA fingerprints. In the DNA fingerprints, each variety had its unique pattern that could be easily distinguished from others. The results demonstrated that 34 varieties of S. japonicum had a relatively narrow genetic variation. Hence, a broadening of the genetic basis of breeding material is necessary. We conclude that establishment of DNA fingerprint is feasible by means of SRAP markers.
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Affiliation(s)
- R X Sun
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
| | - C H Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
| | - Y Q Zheng
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
| | - Y C Zong
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
| | - X D Yu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
| | - P Huang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Silviculture of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Haidian District, Beijing, China
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Li YJ, Dai Q, Deng CY, Sun RX, Zheng J, Chen Z, Sun Y, Wang H, Yuan ZD, Fang C, Deng ZG. Field homogeneity improvement of maglev NdFeB magnetic rails from joints. Springerplus 2016; 5:372. [PMID: 27066380 PMCID: PMC4807185 DOI: 10.1186/s40064-016-1965-3] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 03/02/2016] [Indexed: 11/10/2022]
Abstract
An ideal magnetic rail should provide a homogeneous magnetic field along the longitudinal direction to guarantee the reliable friction-free operation of high temperature superconducting (HTS) maglev vehicles. But in reality, magnetic field inhomogeneity may occur due to lots of reasons; the joint gap is the most direct one. Joint gaps inevitably exist between adjacent segments and influence the longitudinal magnetic field homogeneity above the rail since any magnetic rails are consisting of many permanent magnet segments. To improve the running performance of maglev systems, two new rail joints are proposed based on the normal rail joint, which are named as mitered rail joint and overlapped rail joint. It is found that the overlapped rail joint has a better effect to provide a competitive homogeneous magnetic field. And the further structure optimization has been done to ensure maglev vehicle operation as stable as possible when passing through those joint gaps. The results show that the overlapped rail joint with optimal parameters can significantly reduce the magnetic field inhomogeneity comparing with the other two rail joints. In addition, an appropriate gap was suggested when balancing the thermal expansion of magnets and homogenous magnetic field, which is considered valuable references for the future design of the magnetic rails.
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Affiliation(s)
- Y J Li
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China ; School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Q Dai
- School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - C Y Deng
- School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - R X Sun
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - J Zheng
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z Chen
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Y Sun
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - H Wang
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z D Yuan
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - C Fang
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z G Deng
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
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Hu J, Wang Y, Wang F, Wang L, Yu X, Sun R, Wang Z, Wang L, Gao H, Fu Z, Zhao W, Yan S. Effect and mechanisms of human Wharton's jelly-derived mesenchymal stem cells on type 1 diabetes in NOD model. Endocrine 2015; 48:124-34. [PMID: 24590294 DOI: 10.1007/s12020-014-0219-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 02/14/2014] [Indexed: 01/03/2023]
Abstract
Type 1 diabetes is an autoimmune disease that results from an inflammatory destruction of β-cells in islets. Mesenchymal stem cells derived from Wharton's jelly (WJ-MSCs) own a peculiar immunomodulatory feature and might reverse the inflammatory destruction and repair the function of β-cells. Sixty NOD mice were divided into four groups, including normal control group, WJ-MSCs prevention group (before onset), WJ-MSCs treatment group (after onset), and diabetic control group. After homologous therapy, onset time of diabetes, levels of fasting plasma glucose (FPG), fed blood glucose and C-peptide, regulation of cytokines, and islet cells were examined and evaluated. After WJ-MSCs infusion, FPG and fed blood glucose in WJ-MSCs treatment group decreased to normal level in 6-8 days and maintained for 6 weeks. Level of fasting C-peptide of these mice was higher compared to diabetic control mice (P=0.027). In WJ-MSCs prevention group, WJ-MSCs played a protective role for 8-week delayed onset of diabetes, and fasting C-peptide in this group was higher compared to the other two diabetic groups (P=0.013, 0.035). Compared with diabetic control group, frequencies of CD4+CD25+Foxp3+ Tregs in WJ-MSCs prevention group and treatment group were higher, while levels of IL-2, IFN-γ, and TNF-α were lower (P<0.001); the degree of insulitis was also depressed, especially for WJ-MSCs prevention group (P<0.05). Infusion of WJ-MSCs could aid in T1DM through regulation of the autoimmunity and recovery of islet β-cells no matter before or after onset of T1DM. WJ-MSCs might be an effective method for T1DM.
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Affiliation(s)
- Jianxia Hu
- Stem Cell Research Center, The Affiliated Hospital of Medical College, Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, China
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Abstract
The effects and possible mechanisms of adipose-derived stem cells (ASC) infusion on type 2 diabetic rats were investigated in this study. Twenty normal male Sprague-Dawley rats were included in normal control group, and 40 male diabetic rats were randomly divided into diabetic control group and ASC group (which received ASC infusion). After therapy, levels of fasting plasma glucose (FPG), HbA1c, serum insulin and C-peptide, recovery of islet cells, inflammatory cytokines, and insulin sensitivity were analyzed. After ASC infusion, compared with diabetic control group, hyperglycemia in ASC group was ameliorated in 2 weeks and maintained for about 6 weeks, and plasma concentrations of insulin and C-peptide were significantly improved (P<0.01). Number of islet β cells and concentration of vWF in islets in ASC group increased, while activity of caspase-3 in islets was reduced. Moreover, concentrations of TNF-α, IL-6 and IL-1β in ASC group obviously decreased (P<0.05). The expression of GLUT4, INSR, and phosphorylation of insulin signaling molecules in insulin target tissues were effectively improved. ASC infusion could aid in T2DM through recovery of islet β cells and improvement of insulin sensitivity. Autologous ASC infusion might be an effective method for T2DM.
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Affiliation(s)
- Jianxia Hu
- Stem Cell Research Center, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
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Liu SG, Li YY, Sun RX, Wang JL, Li XD, Han L, Chu N, Li CG. Polymorphisms in the vitamin D receptor and risk of gout in Chinese Han male population. Rheumatol Int 2014; 35:963-71. [DOI: 10.1007/s00296-014-3167-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 10/27/2014] [Indexed: 12/13/2022]
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Hu J, Wang F, Sun R, Wang Z, Yu X, Wang L, Gao H, Zhao W, Yan S, Wang Y. Effect of combined therapy of human Wharton's jelly-derived mesenchymal stem cells from umbilical cord with sitagliptin in type 2 diabetic rats. Endocrine 2014; 45:279-87. [PMID: 23686639 DOI: 10.1007/s12020-013-9984-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 05/07/2013] [Indexed: 12/26/2022]
Abstract
Type 2 diabetes mellitus is the most common endocrine disease all over the world, while existing therapies can only ameliorate hyperglycemia or temporarily improve the response to insulin in target tissues, they cannot retard or improve the progressive β-cell dysfunction persistently. Combined therapy of stem cells and sitagliptin might resolve this problem, we verified this hypothesis in a diabetic rat model. Except ten Wistar rats in normal control group, diabetic rats were divided into diabetic control group, WJ-MSCs group, sitagliptin group and WJ-MSCs + sitagliptin group and received homologous therapy. Ten weeks after therapy, diabetic symptoms, FPG and GHbA1c in WJ-MSCs group, sitagliptin group and WJ-MSCs + sitagliptin group were significantly less than those in diabetic control group (P < 0.05), while fasting C-peptide and number of β cells in WJ-MSCs group and WJ-MSCs + sitagliptin group was significantly higher than those in diabetic control and sitagliptin group (P < 0.01). Glucagon and number of α cells in sitagliptin group and WJ-MSCs + sitagliptin group were significantly lower than those in WJ-MSCs group and diabetic control group (P < 0.01). No symptoms of rejection and toxic effect were observed. Combined therapy of WJ-MSCs and sitagliptin can effectively ameliorate hyperglycemia, promote regeneration of islet β cells and suppress generation of islet α cells in diabetic rats, presenting a new therapy for type 2 diabetes although the exact mechanisms are unclear.
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Affiliation(s)
- Jianxia Hu
- Stem Cell Research Center, The Affiliated Hospital of Medical College, Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, China
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Lv WS, Li L, Wen JP, Pan RF, Sun RX, Wang J, Xian YX, Cao CX, Gao YY. Comparison of a multiple daily insulin injection regimen (glargine or detemir once daily plus prandial insulin aspart) and continuous subcutaneous insulin infusion (aspart) in short-term intensive insulin therapy for poorly controlled type 2 diabetes patients. Int J Endocrinol 2013; 2013:614242. [PMID: 23737776 PMCID: PMC3662171 DOI: 10.1155/2013/614242] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 03/27/2013] [Accepted: 04/13/2013] [Indexed: 11/18/2022] Open
Abstract
Aims. To examine the potential differences between multiple daily injection (MDI) regimens based on new long-acting insulin analogues (glargine or detemir) plus prandial insulin aspart and continuous subcutaneous insulin aspart infusion (CSII) in patients with poorly controlled type 2 diabetes. Methods. Patients (n = 119) with poorly controlled type 2 diabetes of a duration exceeding five years were randomly assigned into three groups: Group A treated with CSII using insulin aspart; Group B treated with glargine-based MDI and Group C treated with detemir-based MDI. Results. Good glycemic control was achieved by patients in Group A in a significantly shorter duration than patients in Groups B and C. Total daily insulin, basal insulin dose and dose per kg body weight in Group A were significantly less than those in Groups B and C. Daily blood glucose fluctuation in Group A was significantly less than that in Groups B and C. There were no differences between Groups B and C. Conclusions. Aspart-based CSII may achieve good blood glucose control with less insulin doses over a shorter period compared with glargine or detemir-based MDI. No differences between glargine- and detemir-based MDI were detected in poorly controlled subjects with type 2 diabetes.
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Affiliation(s)
- Wen-shan Lv
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Li Li
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Jun-ping Wen
- Department of Endocrinology, Key Laboratory of Endocrinology, Fujian Provincial Hospital, Fujian Medical University, North Branch of Fujian Provincial Hospital, Fujian Provincial Geriatric Hospital, Fuzhou 350001, China
- *Jun-ping Wen: and
| | - Rong-fang Pan
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Rui-xia Sun
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Jing Wang
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Yu-xin Xian
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Cai-xia Cao
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
| | - Yan-yan Gao
- The Department of Internal Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266100, China
- *Yan-yan Gao:
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Amal H, Ding L, Liu BB, Tisch U, Xu ZQ, Shi DY, Zhao Y, Chen J, Sun RX, Liu H, Ye SL, Tang ZY, Haick H. The scent fingerprint of hepatocarcinoma: in-vitro metastasis prediction with volatile organic compounds (VOCs). Int J Nanomedicine 2012; 7:4135-46. [PMID: 22888249 PMCID: PMC3415321 DOI: 10.2147/ijn.s32680] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [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: 07/27/2012] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common and aggressive form of cancer. Due to a high rate of postoperative recurrence, the prognosis for HCC is poor. Subclinical metastasis is the major cause of tumor recurrence and patient mortality. Currently, there is no reliable prognostic method of invasion. AIM To investigate the feasibility of fingerprints of volatile organic compounds (VOCs) for the in-vitro prediction of metastasis. METHODS Headspace gases were collected from 36 cell cultures (HCC with high and low metastatic potential and normal cells) and analyzed using nanomaterial-based sensors. Predictive models were built by employing discriminant factor analysis pattern recognition, and the classification success was determined using leave-one-out cross-validation. The chemical composition of each headspace sample was studied using gas chromatography coupled with mass spectrometry (GC-MS). RESULTS Excellent discrimination was achieved using the nanomaterial-based sensors between (i) all HCC and normal controls; (ii) low metastatic HCC and normal controls; (iii) high metastatic HCC and normal controls; and (iv) high and low HCC. Several HCC-related VOCs that could be associated with biochemical cellular processes were identified through GC-MS analysis. CONCLUSION The presented results constitute a proof-of-concept for the in-vitro prediction of the metastatic potential of HCC from VOC fingerprints using nanotechnology. Further studies on a larger number of more diverse cell cultures are needed to evaluate the robustness of the VOC patterns. These findings could benefit the development of a fast and potentially inexpensive laboratory test for subclinical HCC metastasis.
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MESH Headings
- Animals
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/metabolism
- Carcinoma, Hepatocellular/chemistry
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Case-Control Studies
- Cell Line, Tumor
- Discriminant Analysis
- Gas Chromatography-Mass Spectrometry/methods
- Hep G2 Cells
- Humans
- Liver Neoplasms/chemistry
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Lung Neoplasms/secondary
- Mice
- Mice, Nude
- Models, Theoretical
- Nanotechnology/instrumentation
- Neoplasm Metastasis
- Pattern Recognition, Automated
- Reproducibility of Results
- Statistics, Nonparametric
- Volatile Organic Compounds/analysis
- Volatile Organic Compounds/metabolism
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Affiliation(s)
- Haitham Amal
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa, Israel
| | - Lu Ding
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Bin-bin Liu
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Ulrike Tisch
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa, Israel
| | - Zhen-qin Xu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Da-you Shi
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yan Zhao
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Jie Chen
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Rui-xia Sun
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Hu Liu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Sheng-Long Ye
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Zhao-you Tang
- Liver Cancer Institute and Zhong-shan Hospital, Fudan University, Shanghai, China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa, Israel
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Kang X, Wang N, Pei C, Sun L, Sun R, Chen J, Liu Y. Glycan-related gene expression signatures in human metastatic hepatocellular carcinoma cells. Exp Ther Med 2011; 3:415-422. [PMID: 22969905 DOI: 10.3892/etm.2011.430] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 10/14/2011] [Indexed: 01/12/2023] Open
Abstract
Human hepatocellular carcinoma (HCC) ranks second in cancer mortality in China; recurrence and metastasis have been the cause of the high mortality. Glycans on the cell surface play a pivotal role in tumor metastasis. The global alteration in the structure and composition of N-glycans during HCC metastasis remains unknown. To understand glycan alterations of glycoproteins by correlating the glycosyltransferase expression profile with glycan structure, we systematically used glycan profiling tools: glycogene microarray analyses of 115 genes, including glycotransferases, glycosidases and nuclear sugar transporters and lectin chips to investigate the glycan-related gene expression signatures in the high metastatic potential HCC cell line, HCCLM3, in comparison to the HCC cell line, Hep3B, with low metastatic potential. Of the 115 genes, 18 genes were up-regulated in high metastatic potential HCCLM3 cells in comparison to Hep3B cells, while 11 genes were down-regulated. The differentially expressed genes, such as ST3GalI, FUT8, β3GalT5, MGAT3 and MGAT5, were mainly involved in the synthesis of N-glycan and glycolipids, particularly the sialyl Lewis antigen. The results of the glycogene microarray analysis were further validated by quantitative real-time PCR analysis and lectin-based analysis. The differentially expressed glycogenes identified in this study may provide new insights and represent novel factors for investigating the functional role of cell surface carbohydrate-mediated HCC metastasis.
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Affiliation(s)
- Xiaonan Kang
- Liver Cancer Institute of Zhongshan Hospital and Institute of Biomedical Science, Fudan University, Shanghai
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34
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Cao C, Yang X, Li L, Sun R, Xian Y, Lv W, Wang J, Xu Y, Gao Y. Increased expression of CYP17 and CYP11B1 in subclinical Cushing's syndrome due to adrenal adenomas. Int J Urol 2011; 18:691-6. [DOI: 10.1111/j.1442-2042.2011.02836.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xia Y, Chen R, Song Z, Ye S, Sun R, Xue Q, Zhang Z. Gene expression profiles during activation of cultured rat hepatic stellate cells by tumoral hepatocytes and fetal bovine serum. J Cancer Res Clin Oncol 2010; 136:309-21. [PMID: 19727817 DOI: 10.1007/s00432-009-0666-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Accepted: 08/07/2009] [Indexed: 01/05/2023]
Abstract
PURPOSE Hepatic stellate cells (HSCs) transdifferentiate to become extracellular matrix-producing myofibroblasts during liver injury. Myofibroblasts can also promote invasion and metastasis of hepatocellular carcinoma (HCC). In this study, we determined gene expression changes in two different models of HSC activation, induction-activated HSCs (iHSCs) and culture-activated HSCs (cHSCs). METHODS Hepatic stellate cells were isolated by density centrifugation and exposed to conditioned medium (CM) from the rat HCC cell line C5F, and fetal bovine serum (FBS). Expression of 27,100 genes in quiescent HSCs, cHSCs and iHSCs was analyzed by microarray and was confirmed on a subset of genes by real-time RT-PCR and Western blot. RESULTS One thousand nine hundred sixty-seven genes were differentially expressed in cHSCs and iHSCs, including genes that encode proinflammatory factors, adhesion molecules, cell surface receptors, signaling transduction and immune factors such as Il1a, Vcam1, Ccl6, Ilr7, PRAP, osteopontin, Gp39, Raf1, Rac2, Adam17, Wnt6, MMP-9, and Cfd. C5F-CM-induced activation only partially reproduced the gene expression changes observed during FBS culture activation. iHSCs showed specific gene expression, suggesting that HCC cells can specifically induce HSC activation. CONCLUSIONS Induction- activated HSCs' gene expression patterns were partially similar to and different from that of cHSCs. iHSCs might play an important role in invasion and metastasis of HCC. This study provided theoretical foundations for investigating the biology of HSCs in HCC.
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MESH Headings
- Animals
- Blotting, Western
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cattle
- Cell Culture Techniques
- Cell Separation/methods
- Cells, Cultured
- Extracellular Matrix/metabolism
- Fibroblasts/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Hepatic Stellate Cells/immunology
- Hepatic Stellate Cells/metabolism
- Hepatic Stellate Cells/pathology
- Hepatocytes/metabolism
- Liver Neoplasms, Experimental/genetics
- Liver Neoplasms, Experimental/immunology
- Liver Neoplasms, Experimental/metabolism
- Liver Neoplasms, Experimental/pathology
- Neoplasm Invasiveness
- Oligonucleotide Array Sequence Analysis
- Rats
- Rats, Inbred F344
- Reverse Transcriptase Polymerase Chain Reaction
- Up-Regulation
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Affiliation(s)
- Yunhong Xia
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, 200032 Shanghai, China
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36
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Xia YH, Song ZJ, Chen RX, Ye SL, Sun RX, Xue Q. [Analysis of differential gene expression in rat hepatic stellate cells activated by culture or hepatocellular carcinoma cell induction]. Zhonghua Zhong Liu Za Zhi 2009; 31:164-169. [PMID: 19615251] [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: 05/28/2023]
Abstract
OBJECTIVE Hepatic stellate cells (HSC) in hepatocellular carcinoma (HCC) transdifferentiate into extracellular matrix-producing myofibroblasts. Activated HSC can promote invasion and metastasis of HCC. To understand the differences of HSC in normal liver and HCC, we compared the gene expression patterns in HCC cell induction-activated and culture-activated rat HSC. METHODS HSC were isolated by density centrifugation and exposed to conditioned medium from rat HCC cell line C5F. Expression of 22 012 genes in quiescent HSC, culture-activated HSC and HCC induction-activated HSC was analyzed by cDNA microarray and confirmed by real-time RT-PCR and Western blot. RESULTS 1672 genes were differentially expressed in culture-activated HSC, including proinflammatory factors, cell adhesion molecules, cell surface receptors, signaling transduction molecules and immune factors. 711 genes were differentially expressed in HCC induction-activated HSC. Some of them were identical to those in culture-activated HSC. HCC Induction-activated HSC showed specific gene expression patterns, including Raf1, Rac2, Adam17, Wnt6, MMP-9 and TNF, suggesting that HCC cells can specifically induce HSC activation. CONCLUSION The gene expression patterns in HCC induction-activated HSC are different from those in culture-activated HSC. HCC induction-activated HSC may play a major role in the invasion and metastasis of HCC. In vivo activation should be considered as the standard for the study of HSC biology. HCC induction-activated HSC should be considered as the standard for HSC biology studies.
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Affiliation(s)
- Yun-hong Xia
- Liver Cancer Institute, Zhongshan Hospital of Fudan University, Shanghai 200032, China
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Miao Z, Li C, Chen Y, Zhao S, Wang Y, Wang Z, Chen X, Xu F, Wang F, Sun R, Hu J, Song W, Yan S, Wang CY. Dietary and lifestyle changes associated with high prevalence of hyperuricemia and gout in the Shandong coastal cities of Eastern China. J Rheumatol 2008; 35:1859-1864. [PMID: 18634142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To demonstrate the prevalence of hyperuricemia and gout associated with dietary and lifestyle changes and evaluate the implication of metabolic disorders to the development of hyperuricemia. METHODS Data collected from 5,003 subjects randomly recruited from 5 coastal cities (Qingdao, Rizhao, Yantai, Weihai, and Dongying) of Shandong province in Eastern China were analyzed. RESULTS Overall, the prevalence for hyperuricemia and gout in the studied populations was 13.19% and 1.14%, respectively. The prevalence was significantly higher in men as compared to women (18.32% vs 8.56% for hyperuricemia, 1.94% vs 0.42% for gout). Hyperuricemia was more common in men over age 30 and in women over age 50. A significant steady increase for the prevalence was noted as compared to the previous published data. Urban residents showed much higher prevalence of hyperuricemia as compared to rural residents (14.9% vs 10.1%, p = 0.004). Similarly, higher prevalence was noted in the developed city compared to the less developed city (18.02 vs 5.3%). These discrepancies were highly correlated with economic development as manifested by the increase of daily consumption of meat and seafood. Additionally, alcohol, overweight or obesity, hypertension, and abnormal triglycerides were highly associated with higher prevalence of hyperuricemia. Moreover, hyperuricemia is likely a risk factor for the development of diabetes mellitus. CONCLUSION There was a remarkable increase for the prevalence of hyperuricemia and gout, which is highly correlated with the development of the economy as manifested by dietary and lifestyle changes.
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Affiliation(s)
- Zhimin Miao
- Department of Endocrinology, Medical School Hospital of Qingdao University, Qingdao, China
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Yue HY, Dai Z, Guo K, Sun RX, Cao J, Cui JF, Su JJ, Yang C, Ou C, Yue HF, Li Y, Liu YK. [The biological function of peroxiredoxin II on Hep3B cells and its underlying mechanism]. Zhonghua Gan Zang Bing Za Zhi 2008; 16:435-439. [PMID: 18578994] [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: 05/26/2023]
Abstract
OBJECTIVES To study the biological function and its possible underlying mechanism of peroxiredoxin II (PrxII) in liver cancer cell line Hep3B. METHODS Two pairs of double-stranded small interfering RNA (siRNA) targeted on PrxII gene were transfected into Hep3B cells using LipofectamineTM 2000. After confirming the inhibited effects of these siRNAs through Quant SYBR Green polymerase chain reaction and Western blot, the biological characters of Hep3B cell were analyzed by flow cytometry analysis, MTT and colony formation assays. Furthermore, dichlorodihydrofluorescein diacetate (DCFH-DA) and thiobarbituric acid (TBA) assays, for measuring the products of oxidative reaction, such as the reactive oxygen species (ROS) and malondialdehyde (MDA), were applied to explore whether the antioxidant mechanism was involved in the effects of PrxII functioning on Hep3B cell. RESULTS The two pairs of siRNA significantly inhibited PrxII mRNA and protein expression. Compared to the mock and blank control groups, the two PrxII-silent groups showed decreased rates of cell growth and clone formation and increased rates of cell apoptosis. The numbers of the formed colonies were 42.0+/-2.8 and 40.5+/-0.7 respectively in the two PrxII-silent groups, while they were 121.5+/-2.1 and 130.0+/-1.4 in the mock and blank control groups (P less than 0.05). The levels of endogenous ROS and MDA were significantly higher in the two PrxII-silent groups than those in the mock and blank control groups (P less than 0.05). CONCLUSION PrxII might play an important role in the hepatocarcinogenesis, possibly through an antioxidant function which may provide a favorable microenvironment for cancer cell survival and progression.
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Affiliation(s)
- Hai-ying Yue
- Department of Experimental Pathology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
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Xiao YS, Zhou J, Fan J, Sun QM, Zhao Y, Sun RX, Liu YK, Tang ZY. [Interferon-alpha upregulates thymidine phosphorylase expression via JAK-STAT transcriptional activation and mRNA stabilization in human hepatocellular carcinoma SMMC-7721 cells]. Zhonghua Zhong Liu Za Zhi 2008; 30:444-447. [PMID: 19024520] [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: 05/27/2023]
Abstract
OBJECTIVE To examine how the thymidine phosphorylase (TP) gene expression is upregulated by interferon-alpha (IFN-alpha) in human hepatocellular carcinoma SMMC-7721 cells. METHODS TP mRNA levels were determined by RT-PCR. Whether the JAK-STAT cascade mediates IFN-alpha-induced TP mRNA expression was studied by pretreatment with Janus Kinase (JAK) inhibitor, AG-490. Effects of IFN-alpha on TP mRNA stability were detected with additional actinomycin D. RESULTS The expression of TP mRNA was induced by IFN-alpha in a dose- and time-dependent manner in SMMC-7721 (human hepatocellular carcinoma) cells. TP mRNA levels rose at 8 h, reached the peak value at 12 h, and remained at a high level up to 72 h in SMMC-7721 cells treated with IFN-alpha 10000 U/ml. IFN-alpha at a dose of 5000 or 10000 U/ml up-regulated TP expression about 3 fold compared with that of non-treated cells (P < 0.05). Induction of TP mRNA expression by IFN-alpha was significantly inhibited in SMMC-7721 cells by pretreatment with AG-490, in comparison with that treated with IFN-alpha alone. Pretreatment of SMMC-7721 cells with IFN-alpha 10000 U/ml for 24 h caused a substantial stabilization of TP mRNA, with a half-live of 35.8 h, compared with 8.5 hr in the control SMMC-7721 cells. CONCLUSION IFN-alpha at certain doses upregulates TP mRNA expression via both JAK-STAT transcriptional activation and post-transcriptional mRNA stabilization in human hepatocellular carcinoma SMMC-7721 cells.
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Affiliation(s)
- Yong-sheng Xiao
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Han D, Ye SL, Liu BB, Chen RX, Xue TC, Sun RX, Zhao Y, Chen J. [Effect of siRNA targeted against survivin on the malignant behaviors of human hepatoma cells]. Zhonghua Gan Zang Bing Za Zhi 2008; 16:363-366. [PMID: 18510850] [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: 05/26/2023]
Abstract
OBJECTIVE To study survivin expression in human hepatoma cells and the effects of survivin siRNA on the malignant phenotypes of human hepatocellular cell line HCCLM6. METHODS Four hepatocellular carcinoma (HCC) cell lines were used. Semi-quantitative RT-PCR and Western blot were used to measure and compare their survivin expressions. The siRNA expression vector pshRNA-survivin targeting the mRNA of survivin and vector pGPU6/GFP/Neo-NC (as a control) were constructed, and then transfected into HCCLM6 cells. FQ-PCR was used to quantify the mRNA levels of survivin. The malignant phenotypes of transfected HCCLM6 cells, including invasive activities and adhesive capabilities, were analyzed. RESULTS Survivin expression gradually increased with the increase of the invasion and metastasis behaviors of the four HCC cell lines (P<0.05). The expression of survivin was highest in cell line HCCLM6. Survivin mRNA level was decreased by 93.500%+/-3.117% after the pshRNA-survivin transfection. The cell adhesion rates significantly decreased in the cells transfected with pshRNA-survivin (cell adhesion rates were 11.403%+/-1.256% vs 32.545%+/-1.367%, t=20.732, P<0.01). The migrating number of HCCLM6 cells (13.5+/-0.9) transfected with pshRNA-survivin was also significantly decreased (t=14.5, P<0.01) as compared with the control group (32.6+/-1.4). CONCLUSION The expression of survivin in HCC might have a close relationship to their invasion and metastasis properties. Sequence-specific shRNA can significantly reduce the survivin expression in the HCCLM6 cell line. Suppression of survivin expression in HCCLM6 cells transfected with pshRNA-survivin can reduce their invasive and adhesive capabilities.
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Affiliation(s)
- Dan Han
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, and Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Shanghai 200032, China
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Song LJ, Ye SL, Wang KF, Liang CM, Liu H, Sun RX, Zhao Y, Tang ZY. [Functional localization of metastasis suppressor genes for HCC on human chromosome 8]. Zhonghua Gan Zang Bing Za Zhi 2008; 16:12-16. [PMID: 18226336] [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: 05/25/2023]
Abstract
OBJECTIVE We previously showed that introduction of a normal, neomycin-tagged human chromosome 8 reduced the metastatic capacity of C5F rat liver cancer cell line, which had high metastatic potential without affecting tumorigenicity, suggesting the presence of one or more metastasis suppressor genes encoded on human chromosome 8. We proceeded to define further the region harboring the metastasis suppressor gene(s) and to determine the random loss of human chromosome 8 by PCR amplification of sequence tag site (STS) markers. METHODS The national Center for Biotechnology Information (NCBI) databases were used as references of the relative genetic distances of the STS markers. C5F genomic DNA and A9/neo8 genomic DNA were used as negative and positive controls for chromosome 8 amplification, respectively. Genomic DNA was isolated and quantified from cultured hybrid clones (A9/C5F-1 and A9/C5F-2 microcell hybrid clones served as metastasis-unsuppressed groups; A9/C5F-4, A9/C5F-8 and A9/C5F-10 microcell hybrid clones served as metastasis suppressed groups). STS-PCR products were separated by electrophoresis through 2% agarose gel. RESULTS Metastasis-suppressed microcell hybrid clones (A9/C5F-4, A9/C5F-8 and A9/C5F-10) conserved STS markers between D8S542 --> D8S1973 (8p21.1-23.1). In contrast, metastasis-unsuppressed clones (A9/C5F-1 and A9/C5F-2) lacked several markers in this region. In attempts to refine the region retained in the microcell suppressed clones, more densely spaced STS markers in the human chromosome 8p21.1-23.1 were used. We found that the metastasis-suppressed clones retained 18cM region between D8S542 and D8S1973 (8P21.1-23.1), where as the metastasis-unsuppressed clones lacked the region. CONCLUSION Our results suggest that a metastasis suppressor gene is located within the interval between D8S542 and D8S1973 on human chromosome 8p21.1-23.1.
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Affiliation(s)
- Li-jie Song
- First Affiliated Hospital of Zhengzhou University, Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Guo K, Liu Y, Zhou H, Dai Z, Zhang J, Sun R, Chen J, Sun Q, Lu W, Kang X, Chen P. Involvement of protein kinase C beta-extracellular signal-regulating kinase 1/2/p38 mitogen-activated protein kinase-heat shock protein 27 activation in hepatocellular carcinoma cell motility and invasion. Cancer Sci 2007; 99:486-96. [PMID: 18167130 DOI: 10.1111/j.1349-7006.2007.00702.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
To understand the molecular mechanism that underlies the role of various prominent signal pathways in hepatocellular carcinoma (HCC) metastasis, a human signal transduction oligonucleotide microarray analysis was carried out in cultured HCC cell models with increasing spontaneous metastatic potential (MHCC97L, MHCC97H, and HCCLM6). The results revealed that the mitogen-activated protein kinase (MAPK) pathway is the prominently upregulated pathway in HCC metastasis. Further study showed that basal phosphorylated levels of extracellular signal-regulating kinase (ERK)(1/2) and p38 MAPK consecutively increased from MHCC97L to MHCC97H to HCCLM6 cells, but not c-Jun N-terminal kinase. The phosphorylation of ERK(1/2) and p38 MAPK was regulated by upregulated protein kinase C beta (PKC beta) in HCC cells through the integrated use of PKC beta RNA interference, the PKC beta specific inhibitor enzastaurin and a PKC activator phorbol-12-myristate-13-acetate. Heat shock protein 27 (HSP27) was also verified as a downstream common activated protein of PKC beta-ERK(1/2) and PKC beta-p38 MAPK. In vitro migration and invasion assay further showed that the depletion of PKC beta or inhibition of PKC beta activation effectively decreased HCC cell motility and invasion. Moreover, the motility and invasion of phorbol-12-myristate-13-acetate-stimulated PKC beta-mediated HCC cells was significantly negated by an ERK inhibitor, 1.4-diamino-2.3-dicyano-1.4-bis[2-aminophenylthio] butadiene, or a p38 MAPK inhibitor, 4-(4-Fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)1H-imidazole. It also showed that HSP27 is critical in PKC beta-mediated HCC cell motility and invasion. Taken together, this study reveals the important role of this PKC beta-ERK(1/2)/p38MAPK-HSP27 pathway, which was verified for the first time, in modulating HCC cell motility and invasion.
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Affiliation(s)
- Kun Guo
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
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Wang KF, Ye SL, Song LJ, Cui JF, Weng YQ, Liang CM, Sun RX, Tang ZY. [A preliminary study of the killing function in vitro by T lymphocytes activated by dendritic cells loaded with exosomes secreted by hepatic cancer cell lines with high or low metastatic potentials]. Zhonghua Gan Zang Bing Za Zhi 2007; 15:658-62. [PMID: 17903366] [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: 05/17/2023]
Abstract
OBJECTIVE To study the tumor cell killing function of T lymphocytes stimulated by dendritic cells (DC) and to analyze the differences of protein contents of exosomes in each type of cell. METHODS The exosomes of hepatic cell lines with high (P group) or low (F group) metastatic potentials were isolated by a process of four-step centrifugation and the collected exosomes were observed under an electron microscope (EM). The tumor cell killing experiment was performed by adding T lymphocytes activated by DC loaded with exosomes from corresponding P and F group cells and was studied using 3H-TdR experiments. The proteomic analysis was performed by surface-enhanced laser desorption/ ionization time of flight mass spectrometry (SELDI-TOF-MS ) on the exosomes of P and F group cells. RESULTS The density distribution and content of exosomes in the P group were not equal to those in the F group observed by EM. The CD80, CD86, MHC-I and MHC-II in the P group were 64.27+5.00, 44.89+10.11, 84.35+19.89 and 59.03+19.37, and those in the F group were 71.53+4.85, 50.01+9.50, 80.68+29.87 and 58.86+21.11, respectively (P>0.05, compared with the control group). The counts per minute value in the P group was 528.40+179.06 and 78.80+24.44 in the F group after being loaded with exosomes (P<0.01, compared with the control group). There were significant differences between the proteins in the exosomes of hepatic cancer cell lines with high or low metastatic potentials. CONCLUSION Exosomes have potential values of application in immunotherapy and in biotherapy for recurrences and metastases of hepatic carcinomas.
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Affiliation(s)
- Kai-feng Wang
- Liver Cancer Institute, Fudan University, Shanghai 200032, China
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Xiao YS, Zhou J, Fan J, Zhao Y, Sun RX, Liu YK, Ye SL, Tang ZY. [Interferon alpha enhances the sensitivity of SMMC-7721 hepatocellular carcinoma cells to 5'-deoxy-5-fluorouridine related to up-regulation of thymidine phosphorylase]. Zhonghua Yi Xue Za Zhi 2007; 87:2098-2100. [PMID: 17988526] [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: 05/25/2023]
Abstract
OBJECTIVE To observe changes of sensitivity to 5'-deoxy-5-fluorouridine (5'-dFUrd), and 5-fluorouracil (5-FU) in SMMC-7721 hepatocellular carcinoma cells by interferon alpha (IFN-alpha), and its relationship with the expression of thymidine phosphorylase (TP). METHODS TP mRNA expression was determined by RT-PCR. Cytotoxicity of 5'-dFUrd, and 5-FU against SMMC-7721 cells was evaluated by MTT assay. RESULTS Expression levels of TP mRNA was elevated in SMMC-7721 cells after cultured with IFN-alpha, which was a concentration- and time-dependent increase. After SMMC-7721 cells was treated in the concentration of 5000 U/ml, and 10 000 U/ml IFN-alpha, the level of TP mRNA was significantly higher than that in untreated control (P < 0.05). When SMMC-7721 cells was cultured with the concentration 10 000 U/ml IFN-alpha, the level of TP mRNA rose at 8hr, reached the peak value at 12hr, and remained high level up to 72hr. IFN-alpha enhanced the sensitivity of SMMC-7721 cells to 5'-dFUrd with dose-dependent increase. IFN-alpha (10 000 U/ml) reduced IC(50) of 5'-dFUrd from (102.1 +/- 18.4) micromol/L to (34.2 +/- 4.1) micromol/L (P < 0.05). There was no obvious relation between use of IFN-alpha and 5-FU sensitivity. IC(50) of 5-FU was (5.8 +/- 2.0) micromol/L and (6.3 +/- 1.4) micromol/L in with IFN-alpha (10 000 U/ml) and control group, respectively. Under the use of interferon, sensitivity to 5'-dFUrd increased positively related to up-regulation of TP mRNA expression. CONCLUSION IFN-alpha enhanced cytotoxicity of 5'-dFUrd against SMMC-7721 cells positively related to its induction of TP mRNA.
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Affiliation(s)
- Yong-sheng Xiao
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Liang CM, Zhong CP, Sun RX, Liu BB, Huang C, Qin J, Zhou S, Shan J, Liu YK, Ye SL. Local expression of secondary lymphoid tissue chemokine delivered by adeno-associated virus within the tumor bed stimulates strong anti-liver tumor immunity. J Virol 2007; 81:9502-11. [PMID: 17567706 PMCID: PMC1951415 DOI: 10.1128/jvi.00208-07] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Development of an effective antitumor immune response depends on the appropriate interaction of effector and target cells. Thus, the expression of chemokines within the tumor may induce a more potent antitumor immune response. Secondary lymphoid tissue chemokine (SLC) is known to play a critical role in establishing a functional microenvironment in secondary lymphoid tissues. Its capacity to attract dendritic cells (DCs) and colocalize them with T cells makes it a good therapeutic candidate against cancer. In this study, we used SLC as a treatment for tumors established from a murine hepatocellular carcinoma model. SLC was encoded by recombinant adeno-associated virus (rAAV), a system chosen for the low host immunity and high efficiency of transduction, enabling long-term expression of the gene of interest. As a result, rAAV-SLC induced a significant delay of tumor progression, which was paralleled by a profound infiltration of DCs and activated CD4(+) T cells and CD8(+) T cells (CD3(+) CD69(+) cells) into the tumor site. In addition, rAAV-SLC treatment was also found to reduce tumor growth in nude mice, most likely due to inhibition of neoangiogenesis. In conclusion, local expression of SLC by rAAV represents a promising approach to induce immune-mediated regression of malignant tumors.
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MESH Headings
- Animals
- Antigens, CD/analysis
- Antigens, Differentiation, T-Lymphocyte/analysis
- CD3 Complex/analysis
- CD4-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/immunology
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/prevention & control
- Carcinoma, Hepatocellular/therapy
- Chemokine CCL21
- Chemokines, CC/biosynthesis
- Chemokines, CC/genetics
- Chemokines, CC/immunology
- Dendritic Cells/immunology
- Dependovirus/genetics
- Disease Models, Animal
- Female
- Flow Cytometry
- Genetic Therapy/methods
- Genetic Vectors
- Lectins, C-Type
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Nude
- T-Lymphocyte Subsets/immunology
- Transduction, Genetic
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Affiliation(s)
- Chun-min Liang
- Department of Anatomy and Histology and Embryology, Shanghai Medical College, Fudan University, 200032 Shanghai, People's Republic of China
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Liang CM, Ye SL, Zhong CP, Zheng N, Bian W, Sun RX, Chen J, Li RL, Zhou S, Liu YK. More than chemotaxis: a new anti-tumor DC vaccine modified by rAAV2-SLC. Mol Immunol 2007; 44:3797-804. [PMID: 17521735 DOI: 10.1016/j.molimm.2007.03.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Revised: 03/21/2007] [Accepted: 03/21/2007] [Indexed: 12/13/2022]
Abstract
Secondary lymphoid tissue chemokine (SLC) is strongly expressed in secondary lymphoid organs. Its ability to facilitate chemotaxis of both dendritic cells (DC) and T cells makes it a promising candidate for cancer therapy. In this study, we modified a BMDC vaccine by incorporating the SLC mature peptide gene. The efficacy of this vaccine was evaluated using a mouse hepatocellular carcinoma (HCC) model, with rAAV2 as the gene delivery vector. The rAAV2 encoding SLC (rAAV2-SLC) transfected immature BMDCs at high efficiency and the anti-tumor effects of SLC gene modified BMDCs (rAAV2-SLC/BMDC) were evaluated. In addition, rAAV2-SLC/BMDC vaccine injected directly into tumors attracted more CD4(+) and CD8(+) T lymphocytes into tumors and showed stronger anti-tumor effects than footpad delivery. Moreover, we found that the phenotypic expression of MHC II, the secretion of IL-12 and IFN-gamma, and T cell stimulation were increased in vitro following treatment with rAAV2-SLC/BMDC vaccine and these responses were inhibited by PTX. In vivo, PTX also inhibited the anti-tumor effects of the vaccine. The results suggest that the expression of SLC by rAAV2-SLC/BMDC plays more than a chemotactic role in anti-tumor responses, thus these studies further demonstrate that SLC has potential to be valuable in cancer therapy.
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Affiliation(s)
- Chun-min Liang
- Department of Anatomy and Histology & Embryology, Shanghai Medical College Fudan University, 138 Yi Xue Yuan Road, 200032 Shanghai, PR China
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Cui J, Kang X, Dai Z, Huang C, Zhou H, Guo K, Li Y, Zhang Y, Sun R, Chen J, Li Y, Tang Z, Uemura T, Liu Y. Prediction of chronic hepatitis B, liver cirrhosis and hepatocellular carcinoma by SELDI-based serum decision tree classification. J Cancer Res Clin Oncol 2007; 133:825-34. [PMID: 17516088 DOI: 10.1007/s00432-007-0224-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Accepted: 04/12/2007] [Indexed: 01/17/2023]
Abstract
PURPOSE To screen potential serological biomarkers and develop decision tree classifications of chronic hepatitis B, liver cirrhosis (LC) and hepatocellular carcinoma (HCC), respectively, with high prediction score for improving diagnosis of liver diseases. METHODS The total serum samples were randomly divided into three training sets (41 HBV and 35 health; 36 LC and 35 health; 39 HCC and 35 health) and three testing groups (34 HBV and 38 health; 18 LC and 52 health; 42 HCC and 47 health). Selected WCX2 protein chip capture followed by SELDI-TOF-MS analysis was applied to generate the serum protein profiles. Subsequently serum protein spectra were normalized and aligned by Ciphergen SELDI Software 3.1.1 with Biomarker Wizard including baseline subtraction, mass accuracy calibration, automatic peak detection. Once the intensities of selected significant peaks from the training data set were transferred to further BPS analysis, an optimized classification tree with sequence-decision was established to divide training data set into disease group and control group successfully. A double blind test was employed to determine the clinical sensitivity and clinical specificity of three models. RESULTS After comparative analysis of SELDI based serum protein profile between the cases of disease and healthy, a HCC decision tree classification with sensitivity of 94.872% and specificity of 94.286%; a LC decision tree classification with sensitivity of 91.667% and specificity of 94.286% and a HBV decision tree classification with sensitivity of 95.122% and specificity of 94.286% were produced by BPS respectively. When three decision tree models were challenged by the double-blind test samples, clinical sensitivity and clinical specificity of these models were predicted in diagnosis of three liver diseases (HCC: 90.48 and 89.36%; cirrhosis: 100 and 86.5%; HBV: 85.29 and 84.21%). CONCLUSION SELDI-based decision tree classifications showed great advantages over conventional serological biomarkers in the diagnosis of chronic hepatitis B, LC as well as HCC.
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Affiliation(s)
- Jiefeng Cui
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, 136 Yi Xue Yuan Road, Shanghai, 200032, China
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Liu HW, Cheng B, Yu WL, Sun RX, Tang JB, Fu XB. [Role of angiotensin II receptors in proliferation of fibroblast derived from human hypertrophic scars]. Zhonghua Zheng Xing Wai Ke Za Zhi 2007; 23:36-9. [PMID: 17393691] [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: 05/14/2023]
Abstract
OBJECTIVE The present study was undertaken to observe the expression of angiotensin II (Ang II) type 1 (AT1) and type 2 (AT2) receptors in human hypertrophic scars, and explore their role in the proliferation of fibroblasts in human hypertrophic scars. METHODS The expression of both ATL and AT2 receptors in fibroblasts of hypertrophic scars was detected with immunohistochemical staining. Radioligand receptor binding assay and RT-PCR were used to determined expression level of AT1 and AT2 receptors in cultured fibroblasts derived from hypertrophic scars. DNA synthesis was examined in cultured fibroblasts of hypertrophic scars by measuring [3H]-TdR incorporation into fibroblasts. RESULTS Positive staining signals of both AT1 and AT2 receptors were found in fibroblasts of hypertrophic scars. Expression level of AT1 and AT2 receptors were (10.69 +/- 2.15) fmol/10(6) cells, (4.9 +/- 1.05) fmol/10(6) cells respectively in cultured fibroblasts derived from hypertrophic scars. RT-PCR showed the similar results. In cultured fibroblasts, Ang II stimulation significantly increased DNA synthesis (P < 0.05 vs negative control), which was inhibited by valsartan, an AT1 receptor blocker, but augmented by PD123319, an AT2 receptor antagonist. Valsartan or PD123319 alone did not influence the proliferation of fibroblasts derived from hypertrophic scars. CONCLUSIONS Both AT1 and AT2 receptors were expressed in the fibroblasts of hypertrophic scars, and Ang II regulates DNA synthesis in hypertrophic scar fibroblasts through a negative cross-talk between AT1 and AT2 receptors, which might contribute, at least partly to formation and maturation of human hypertrophic scars. The present study provides new insight into pathogenesis of hypertrophic scars.
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Affiliation(s)
- Hong-wei Liu
- Department of Plastic Surgery, Guangzhou General Hospital of PLA, Liuhua Road 111, Guangzhou 510010, China
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Chen RX, Xue TC, Ye SL, Sun RX, Zhao Y, Tang ZY. [Osteopontin promotes the malignant phenotypes of human hepatocellular carcinoma cell line SMMC-7721]. Zhonghua Gan Zang Bing Za Zhi 2007; 15:37-40. [PMID: 17244457] [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: 05/13/2023]
Abstract
OBJECTIVE To study the effects of osteopontin (OPN) on the phenotypes of human hepatocellular carcinoma cell line SMMC-7721. METHODS Human hepatocellular carcinoma SMMC-7721 cells were transfected with plasmid pcDNA 3.1(-)/OPN and cells transfected with a mock plasmid served as controls. OPN expression was verified by RT-PCR and Western blot, and concentrations of OPN, MMP-2, MMP-9 and uPA were measured by ELISA. A series of functional assays in vitro were used to monitor the changes of SMMC-7721 malignant phenotypes. RESULTS OPN expression of SMMC-7721 cells was elevated after transfection. Concentrations of OPN, MMP-2 and uPA in the medium of SMMC-7721 cells after transfection were higher than those of the controls [(3.02+/-0.12) ng/ml vs (1.43+/-0.07) ng/ml, (43.04+/-3.06) ng/ml vs (22.15+/-4.34) ng/ml, and (4.78+/-0.70) ng/ml vs (1.61+/-0.34) ng/ml respectively, P less than 0.01], but MMP-9 concentration did not increase [(7.82+/-2.25) ng/ml vs (7.70+/-1.92) ng/ml]. Functional assays in vitro indicated that SMMC-7721 cells after transfection showed higher adhesive, migrant and invasive capabilities than those of the controls (cell adhesion rates were 75.33%+/-10.59% vs 57.34%+/-2.52%; number of outer surface cells in migrant assay was 14.33+/-2.51 vs 6.34+/-1.53; cell number in the invasive assay was 8.23+/-1.53 vs 4.12+/-1.29 respectively, P less than 0.05). CONCLUSION OPN might enhance the expression of MMP-2 and uPA to promote malignant phenotypes of SMMC-7721 cells.
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Affiliation(s)
- Rong-xin Chen
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion, PRC Ministry of Education, Shanghai 200032, China
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Liu H, Ye SL, Yang J, Tang ZY, Liu YK, Qin LX, Qiu SJ, Sun RX. [The investigation of the technology of microcell mediated chromosome transfer for functional localization of metastasis suppressor genes for liver cancer on human chromosomes]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2006; 23:540-3. [PMID: 17029204] [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: 05/12/2023]
Abstract
OBJECTIVE In order to seek the functional evidence that there could be metastatsis suppressor gene for liver cancer on human chromosomes, the objective of this study is to establish a method of microcell mediated chromosome transfer (MMCT). METHODS Human chromosome 8 randomly marked with neo gene was introduced into highly metastatic rat liver cancer C5F cell line by treating the single human chromosome donor cells with sequential steps of micronucleation, enucleation and microcell fusion. Double selections of G418 and HAT were applied to screen positive microcell hybrids, which were cloned by single cell isolation. Microcell hybrid clones were confirmed by STS-PCR and WCP-FISH. RESULTS Microcell hybrids resistant to HAT and G418 were obtained, from which 15 clones were obtained by single-cell isolation cloning. STS-PCR and WCP-FISH proved that human chromosome 8 had been successfully introduced into rat liver cancer cell line C5F. The human chromosome 8 introduced into C5F was found to have random loss of chromosome fragments by STS-PCR and consistent recombination with rat chromosome by WCP-FISH. CONCLUSION The successfulls introduction of human chromosome into highly metastatic rat liver cancer cell line has established the technical basis for functional localization of metastasis suppressor gene(s) for liver cancer on human chromosomes.
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Affiliation(s)
- Hu Liu
- Liver Cancer Institute & Zhongshan Hospital, Fudan University, Shanghai, 200032 PR China
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