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Li Y, Wang Q, Yue W, Li X, Chen Y, Gao Y. Expression and self-assembly of virus-like particles from porcine parvovirus and its application in antibody detection. Pol J Vet Sci 2023; 26:591-609. [PMID: 38088304 DOI: 10.24425/pjvs.2023.148280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Porcine parvovirus (PPV) is a major causative agent in reproductive pig disease. The swine industry faces a significant economic and epizootic threat; thus, finding a reliable, quick, and practical way to detect it is essential. In this investigation, recombinant PPV VP2 protein was expressed in the Escherichia coli ( E. coli) expression systems. As shown by electron microscopy (TEM), Western blot, and hemagglutination (HA) assays, the recombinant VP2 protein was successfully assembled into virus-like particles (VLPs) after being expressed and purified. These VLPs had a structure that was similar to that of real PPV viruses and also exhibited HA activity. These VLPs induced high levels of PPV-specific antibody titers in mice after immunization, indicating that the VLPs may be beneficial as potential candidate antigens. VLPs were used as the coating antigens for the VLP ELISA, and the PPV VLPs-based ELISA displayed a high sensitivity (99%), specificity (93.0%) and agreement rate (98.3%) compared to HI assay, and the agreement rate of this ELISA was 97.5% compared to a commercial ELISA kit. Within a plate, the coefficient of variation (CV) was 10%, and between ELISA plates, the CV was 15%. According to a cross-reactivity assay, the technique was PPV-specific in contrast to other viral illness sera. The PPV VLP indirect-ELISA test for PPV detection in pigs with an inactivated vaccine showed that the PPV-positive rate varied among different sample sources from 88.2 to 89.6%. Our results indicate that this ELISA technique was quick, accurate, and repeatable and may be used for extensive serological research on PPV antibodies in pigs.
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Affiliation(s)
- Y Li
- Beijing Biomedicine Technology Center of JoFunHwa Biotechnology (Nanjing Co. Ltd.); No.25 Xiangrui Street Daxing District, Beijing 102600 China
| | - Q Wang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, China
| | - W Yue
- Beijing Biomedicine Technology Center of JoFunHwa Biotechnology (Nanjing Co. Ltd.); No.25 Xiangrui Street Daxing District, Beijing 102600 China
| | - X Li
- Beijing Biomedicine Technology Center of JoFunHwa Biotechnology (Nanjing Co. Ltd.); No.25 Xiangrui Street Daxing District, Beijing 102600 China
| | - Y Chen
- Beijing Biomedicine Technology Center of JoFunHwa Biotechnology (Nanjing Co. Ltd.); No.25 Xiangrui Street Daxing District, Beijing 102600 China
| | - Y Gao
- Beijing Biomedicine Technology Center of JoFunHwa Biotechnology (Nanjing Co. Ltd.); No.25 Xiangrui Street Daxing District, Beijing 102600 China
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Li L, Zou L, Yue W, Liu C, Wang H, Wen Z, Xiang Q, Ren G, Guo S, Fang J. MicroRNA-29a-3p regulates chemosensitivity in hypopharyngeal carcinoma via targeting Cdc42. Malays J Pathol 2022; 44:53-60. [PMID: 35484886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Hypopharyngeal carcinoma is one kind of high malignant tumour followed by poor prognosis in head and neck carcinomas. This study aimed to detect miR-29a-3p and Cdc42 in patients with hypopharyngeal carcinoma. MATERIALS AND METHODS The expression of miR-29a-3p and Cdc42 mRNA were detected, and the correlation between miR-29a-3p/Cdc42 and clinical stages was investigated. RESULTS The relative expression of miR-29a-3p in stage II, III and IV hypopharyngeal carcinoma tissues was significantly lower than that of stage I (P< 0.05). The relative expression of Cdc42 mRNA in stage I, III and IV tissues was significantly higher than that of stage I (P< 0.05). The expression of miR-29a-3p in hypopharyngeal carcinoma with lymph node metastasis was significantly lower than that without lymph node metastasis (P = 0.045). CONCLUSION MiR-29a-3p and Cdc42 mRNA could be potential diagnostic biomarkers of hypopharyngeal carcinoma.
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Affiliation(s)
- L Li
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - L Zou
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - W Yue
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - C Liu
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - H Wang
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - Z Wen
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - Q Xiang
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - G Ren
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - S Guo
- Central Hospital of Chaoyang, Department of Otorhinolaryngology Head and Neck Surgery, Liaoning, China
| | - J Fang
- Beijing Tongren Hospital, Capital Medical University, Department of Otorhinolaryngology Head and Neck Surgery, Beijing, China.
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Liu P, Zhang B, Zeng Q, Chen SW, Ge C, Wang WH, Wang CZ, Yue W, Wan J. [Induction of peripheral blood mononuclear cells to hepatocyte-like cells and preliminary study of cell response to injury under the effect of acetaminophen]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:87-93. [PMID: 35152675 DOI: 10.3760/cma.j.cn501113-20211118-00558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish a method for the induction of peripheral blood mononuclear cells to hepatocyte-like cells, and preliminarily investigate cell response to injury under the effect of acetaminophen (APAP). Methods: The surface marker CD45 of peripheral blood mononuclear cells wase detected cells by using flow cytometry and immunofluorescence methods. The cellular morphology of induced hepatocyte-like cells was observed under an inverted microscope. Real-time fluorescent quantitative PCR (RT-PCR) was used to detect the expression level of hepatocyte-specific genes, such as cytochrome (CY) P1A2, CYP3A4, CYP2C9, albumin (ALB), alpha-fetoprotein (AFP), and hepatocyte nuclear factor (HNF)4α mRNA. Immunofluorescence method was used to detect intracellular hepatocyte markers AFP, HNF4α, and ALB expression at the protein level. Biochemical analyzer was used to detect hepatocyte-specific secretory functions of AFP, ALB, and urea. Luciferase chemiluminescence method was used to detect the activity of key drug metabolizing enzyme CYP3A4. Colorimetric assay was used to detect the effect of the drug acetaminophen on hepatocyte-like cells, and alanine aminotransferase (ALT) was used as an indicator of liver cell injury. The statistical differences between the data were compared with t-test and rank-sum test. Results: The positive expression rate of CD45 cell surface markers isolated from peripheral blood mononuclear cells was about 98%, and hepatocyte-like cell morphology changes appeared on 15th day of induction. Compared with isolated mononuclear cells, CYP1A2, CYP3A4, CYP2C9, ALB, AFP and HNF4α mRNA was markedly elevated. The expression level of AFP, ALB and HNF4α protein were equally increased, and the secretory function of AFP, ALB and urea were enhanced. Compared with primary hepatocytes, CYP1A2, CYP2C9, AFP, HNF4α mRNA, and CYP3A4 mRNA did not decrease. The expression levels of AFP, ALB, and HNF4α proteins in the cells did not decrease, and the secretory function of AFP, ALB, and urea did not decrease. In addition, the CYP3A4 enzyme activity produced by hepatocyte-like cells was similar to that of primary hepatocytes. Compared with hepatocyte-like cells incubated without APAP, hepatocyte-like cells incubated with APAP had higher ALT level. Under the effect of APAP, the ALT level of hepatocyte-like cells was higher than isolated mononuclear cells. Conclusion: Peripheral blood mononuclear cells can be induced into hepatocyte-like cells with partial characteristics of hepatocytes, including the activity of CYP3A4, a key enzyme of hepatocyte drug metabolism. Additionally, preliminarily ALT secretory features reflect the hepatocytes injury under the effect of acetaminophen.
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Affiliation(s)
- P Liu
- Chinese LPA Medical School, Beijing 100853, China Department of Gastroenterology, the Second Medical Centre, Chinese PLA General Hospital, National Clinical Research Center for Geriatic Diseases, Beijing 100853, China
| | - B Zhang
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Q Zeng
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - S W Chen
- Department of Gastroenterology, the Second Medical Centre, Chinese PLA General Hospital, National Clinical Research Center for Geriatic Diseases, Beijing 100853, China
| | - C Ge
- Beijing University of Technoloby, Beijing 100124, China
| | - W H Wang
- Department of Gastroenterology, the Second Medical Centre, Chinese PLA General Hospital, National Clinical Research Center for Geriatic Diseases, Beijing 100853, China
| | - C Z Wang
- Department of Gastroenterology, the Second Medical Centre, Chinese PLA General Hospital, National Clinical Research Center for Geriatic Diseases, Beijing 100853, China
| | - W Yue
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - J Wan
- Department of Gastroenterology, the Second Medical Centre, Chinese PLA General Hospital, National Clinical Research Center for Geriatic Diseases, Beijing 100853, China
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Chen F, Xu Q, Yue W, Yu X, Shao S. A MEN1 Patient Presenting With Multiple Parathyroid Adenomas and Transient Hypercortisolism: A Case Report and Literature Review. Front Endocrinol (Lausanne) 2022; 13:802453. [PMID: 35370956 PMCID: PMC8965320 DOI: 10.3389/fendo.2022.802453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/16/2021] [Accepted: 01/21/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Multiple endocrine neoplasia type 1 (MEN1) is a hereditary endocrine syndrome caused by mutations in MEN1 tumor suppressor gene. CASE PRESENTATION A 53-year-old Chinese female was admitted to Division of Endocrinology, Tongji Hospital, for hypercalcemic crisis. Increased level of parathyroid hormone (PTH) was confirmed by laboratory tests, and imaging examination showed multiple parathyroid adenomas. Based on gene analysis, the patient was diagnosed as MEN1 associated hyperparathyroidism (HPT) by gene analysis with c.1378C>T (p.Arg460Ter) mutation in MEN1 gene. Her condition was complicated by transient hypercortisolism, mammary mass and uterine leiomyoma. After subtotal parathyroidectomy, PTH and serum calcium levels returned to normal. CONCLUSION HPT with multiple parathyroid adenomas is an indication of MEN1 gene mutation. Serum cortisol and its circadian rhythm can be abnormal in the presence of hypercalcemia and high PTH. These parameters can return to normal after parathyroidectomy.
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Affiliation(s)
- Fuqiong Chen
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science & Technology, Wuhan, China
- Branch of National Clinical Research Center for Metabolic Diseases, Wuhan, China
| | - Qinqin Xu
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science & Technology, Wuhan, China
- Branch of National Clinical Research Center for Metabolic Diseases, Wuhan, China
| | - Wenzhu Yue
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science & Technology, Wuhan, China
- Branch of National Clinical Research Center for Metabolic Diseases, Wuhan, China
| | - Xuefeng Yu
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science & Technology, Wuhan, China
- Branch of National Clinical Research Center for Metabolic Diseases, Wuhan, China
| | - Shiying Shao
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science & Technology, Wuhan, China
- Branch of National Clinical Research Center for Metabolic Diseases, Wuhan, China
- *Correspondence: Shiying Shao,
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Weng X, Yue W, Shang L, Wang D, Xu Y, Chen Y, Ge J. Inhibition of CD44 attenuates pressure overload-induced cardiac and lung inflammation, fibrosis, and heart failure progression. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0878] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Inflammation contributes to heart failure (HF) development and progression. CD44 is a member of the hyaluronate receptor family of cell adhesion molecules, which regulates tissue inflammation and fibrosis through modulating macrophage and lymphocyte migration and homing in several diseases. Here we evaluated the role and cellular mechanism of CD44 in regulating transverse aortic constriction (TAC)-induced HF development and progression in mice.
Methods and results
C57/B6 background CD44 KO and wild type mice (6–8 weeks) were subjected to TAC to evaluate the effect of CD44 on the development of TAC-induced LV hypertrophy and cardiac dysfunction. Due to the rapid response to TAC, Balb/c mice (6–8 weeks) were used to determine the effect of CD44 on the progression of TAC-induced congestive heart failure. We found that CD44 expression is dramatically increased in left ventricular (LV) tissues obtained from HF patients and mice. While CD44 gene knockout (KO) has no detectable effect on cardiac structure and function under control conditions, CD44 KO mice were protected from TAC-induced LV inflammation, fibrosis, hypertrophy, dysfunction, and lung remodeling as compared with wild type mice. In addition, we found that inhibition of CD44 signaling with blocking antibodies (Abs) significantly attenuated the transition from LV failure to lung remodeling, and right ventricular hypertrophy in mice with existing HF.
Conclusions
These data identify an important role of CD44 in attenuating cardiac and lung inflammation, fibrosis, HF development, and HF progression, suggesting that inhibition of CD44 signaling may be useful in preventing and treating HF.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Chinese National Natural Science Foundation Grants and American Heart Association
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Affiliation(s)
- X Weng
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - W Yue
- Shanghai Tenth People's Hospital, Shanghai, China
| | - L Shang
- Shenyang Northern Hospital, Shenyang, China
| | - D Wang
- Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Xu
- Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Chen
- University of Mississippi Medical Center, Department of Physiology and Biophysics, Jackson, United States of America
| | - J Ge
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
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Liang J, Yue W, Sun Z, Tong A. Two Novel Ca(II)-Carboxylate Coordination Polymers: Crystal Structures and Antimyeloma Activity Evaluation. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619110192] [Citation(s) in RCA: 1] [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] [Indexed: 11/23/2022]
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8
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Chen Q, Gao Y, Yue W. Delineating the mechanisms of alpha 1-3 fucosyltransferase FUT11 in ovarian cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz238.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yue W, Sun X, Du T. Cholecystectomy versus central obesity or insulin resistance in relation to the risk of nonalcoholic fatty liver disease: the third US National Health and Nutrition Examination Survey. BMC Endocr Disord 2019; 19:95. [PMID: 31477078 PMCID: PMC6720375 DOI: 10.1186/s12902-019-0423-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 08/20/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cholecystectomy, central obesity, and insulin resistance (IR) are established risk factors for nonalcoholic fatty liver disease (NAFLD). We aimed to examine the relative contributions and combined association of cholecystectomy and central obesity/IR with NAFLD risk. METHODS We conducted a cross-sectional analysis of data from the third National Health and Nutrition Examination Survey (NHANES III), in which ultrasonography was performed. Odds ratios (ORs) and 95% confidence intervals for NAFLD were estimated using logistic regression. RESULTS Cholecystectomy associated with a higher prevalence of NAFLD compared with gallstones among both centrally obese and non-centrally-obese subjects. Gallstones associated with a higher prevalence of NAFLD only in the presence of central obesity. In centrally obese participants, the OR increased from 2.67 (2.15-3.32) for participants without gallstone disease to 6.73 (4.40-10.29) for participants with cholecystectomy. In participants with cholecystectomy, the OR increased from 2.57 (1.35-4.89) for participants without central obesity to 6.73 (4.40-10.29) for centrally obese counterparts. We observed a modest increase in the risk of NAFLD with cholecystectomy compared with a large increase in the risk with IR or metabolic syndrome. CONCLUSION The magnitude of the NAFLD risk contributed by cholecystectomy was similar to central obesity in combined analyses. The magnitude of the association with IR or metabolic syndrome was greater than with cholecystectomy.
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Affiliation(s)
- Wenzhu Yue
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province 430030 People’s Republic of China
| | - Xingxing Sun
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Tingting Du
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province 430030 People’s Republic of China
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Ma M, Shi L, Zhang L, Huang L, Ma Y, Zhang Z, Zhang Y, Deng J, Tan S, Yue W, Sun H. Left prefrontal high-frequency rTMS reducing physiologic reactivity exposed to alcohol cues:A sham-controlled, randomized, single-blinded trial. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Chen L, Yue W, Xie XY, Zhang XY, Lyu Y, Liu DQ, Xi JF, Qu MY, Fan Z, Fang F, Pei XT. [The role of poloxamer 188 for cord blood mononuclear cells into megakaryocytes cultivation and induction in three-dimensional WAVE Bioreactor]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:28-31. [PMID: 29551029 PMCID: PMC7343109 DOI: 10.3760/cma.j.issn.0253-2727.2018.01.006] [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: 12/20/2022]
Abstract
目的 观察泊洛沙姆188(P188)对体外三维(3D)培养诱导脐血单个核细胞向巨核细胞分化的影响。 方法 将分离的脐血单个核细胞分别接种于细胞瓶和细胞培养袋中,后者采用WIGGENS摇床模拟生物反应器进行3D培养。在巨核细胞诱导培养基中加入P188体外培养14 d,观察细胞形态、计数细胞数并计算细胞存活率,采用流式细胞术观察巨核细胞表面标志表达情况。 结果 与采用传统的细胞培养瓶二维(2D)培养诱导巨核细胞相比,2D+P188培养组巨核系CD41+、CD41+/CD61+、CD61+细胞数明显增加(P值均<0.01);在3D培养中加入P188,细胞体积变大,核形状不规则,胞质含紫红色颗粒,细胞分化更接近成熟。2D培养、3D培养及3D+P188培养组组间巨核细胞表面标志CD41、CD41/CD61、CD61表达水平差异有统计学意义(P值均<0.01)。LSD-t检验两两比较显示,与2D培养相比,3D培养诱导巨核细胞存活率及细胞数均降低(P值分别为0.018、0.027),3D+P188培养组细胞数、细胞存活率与2D和3D培养组比较差异均无统计学意义(P值均>0.05)。而3D培养组巨核细胞CD41/CD61表达水平为(36.30±1.27)%,高于2D培养组的(23.95±1.34)%(P=0.002),3D+P188培养组CD41/CD61表达水平更高[(59.45±1.20)%]。 结论 3D培养有利于巨核系祖细胞诱导分化,但细胞存活率低,加入P188,细胞生存状态好,且诱导效率更高。
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Affiliation(s)
- L Chen
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Institute of Biomedicine, Guangzhou 510005, China
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Yue W, Liu Y, Huang J, Jiang X, Liu J. Colorectal laterally spreading tumours : subtype evaluation by EUS and BLI and outcome of ESD. Acta Gastroenterol Belg 2019; 82:19-26. [PMID: 30888749] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND AND STUDY AIMS Colorectal laterally spreading tumour (LST) is a specific type of colonic space-occupying lesion unlike other common polypoid lesions. Here, we explored the diagnostic values of endoscopic ultrasonography (EUS) and blue laser image (BLI) in LST subtypes, their relationship with histopathological characteristics and the therapeutic effect of endoscopic submucosal dissection(ESD) for LST. PATIENTS AND METHODS A prospective study of 138 patients with LST was conducted. All LSTs were explored for invasion depth and superficial microstructure through EUS and BLI before ESD. Histopathological characteristics of LSTs were demonstrated through pre-operative biopsy and post-operative specimen detection. Finally, the correlations among varied morphologies, manifestations of EUS and BLI, and histopathological characteristics of LSTs were analysed comprehensively. All patients underwent follow-up after ESD. RESULTS Nodular-mixed and pseudodepressed subtypes were more likely to invade the submucosa, and BLI revealed a greater proportion of types B and C than the homogeneous or flat-elevated subtypes. These endoscopic features were consistent with and proved by histopathological results. Pathological severity of LST on post-ESD specimen detection was greater than that on pre-ESD biopsy analysis. En bloc R0 resection was achieved in 128 cases, and only two patients suffered recurrence during follow-up. CONCLUSIONS Pre-operative evaluation through EUS and BLI examination provided clues of possible pathological features and helped guide the treatment of LST. ESD is a safe and effective therapy for colorectal LST.
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Affiliation(s)
- W Yue
- Department of Digestive Diseases, Huashan Hospital, Fudan University, 200040 Shanghai, People's Republic of China
| | - Y Liu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, 200040 Shanghai, People's Republic of China
| | - J Huang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, 200040 Shanghai, People's Republic of China
| | - X Jiang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, 200040 Shanghai, People's Republic of China
| | - J Liu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, 200040 Shanghai, People's Republic of China
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Santen RJ, Yue W. Cause or prevention of breast cancer with estrogens: analysis from tumor biologic data, growth kinetic model and Women's Health Initiative study. Climacteric 2018; 22:3-12. [PMID: 30380950 DOI: 10.1080/13697137.2017.1388364] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The existing medical literature suggests that estrogens may cause breast cancer but, paradoxically, can also prevent this neoplasm under specific circumstances. Appropriate interpretation of this complex data requires an understanding of emerging concepts of tumor biology. A substantial body of data, including animal models and epidemiologic studies, suggests that estrogens contribute to the development of breast cancer. Additionally, pre-clinical experiments indicate that the responsible mechanisms include both estrogen receptor α-dependent and -independent effects (ERα-dependent and ERα-independent effects). We recently developed two models to describe the growth kinetics of occult breast tumors, one based on autopsy studies and tumor doubling time and the other, computer-based. Validation of the models involved comparison of the predicted incidence of breast cancer with the actual incidence in population-based studies. Utilization of these models allowed us to determine that 16 years on average are required for tumors to undergo the 30 doubling times necessary for the occult tumors to reach the threshold for clinical detection. These models suggest that menopausal hormone therapy with estrogen plus a progestogen in the Women's Health Initiative (WHI) study accelerated the doubling time of occult, pre-existing tumors from 200 to 150 days and thus, increased the rate of tumor diagnosis. Based on estrogen-induced apoptosis data, the model accurately predicted the prevention of diagnosed breast cancer in the estrogen-alone arm of the WHI. Notably, pre-clinical studies demonstrated that conjugated equine estrogen, as used in the WHI, has unique, pro-apoptotic properties compared to the anti-apoptotic effects of estradiol, a finding providing an explanation for the reduction in breast cancer with conjugated equine estrogen.
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Affiliation(s)
- R J Santen
- a Division of Endocrinology and Metabolism , University of Virginia Health Science System , Charlottesville , VA , USA
| | - W Yue
- a Division of Endocrinology and Metabolism , University of Virginia Health Science System , Charlottesville , VA , USA
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Jiang M, Yue W, Zhao X, Teng Y, Li W, Tan J, Zhang L, Ma L, Zhang J. P3.02-083 DKK1 Promotes Migration and Invasion of Non-Small Cell Lung Cancer via β-Catenin Signaling Pathway. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bin S, Bin Z, Baoxia D, Yue W, Wei Z. Neocondylar formation after resection of the mandible and reconstruction with a vascularised iliac crest free flap: rare case. Br J Oral Maxillofac Surg 2017; 55:717-718. [DOI: 10.1016/j.bjoms.2017.04.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/22/2017] [Indexed: 10/19/2022]
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Qi-Zhi W, Feng-Feng W, Hai Z, Cheng-Song S, Yue W, Xiao-Mei Y, Li Z, Shi-Qing Z, Tian-Ping W. [Dynamic change of population structure of Oncomelania hupensis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2017; 29:426-430. [PMID: 29508573 DOI: 10.16250/j.32.1374.2017135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Objective To understand the successive dynamic change of population structure of Oncomelania hupensis during a one-year period, so as to provide the evidence for snail control. Methods A river beach and a ditch infested with O. hupensis snails were selected and longitudinally investigated in the midmonth during one year. The snail survey indices included the survival status, gender, number of whorls, length and width of shell, and gonad development status (measured by the color depth of gonad and the length ratio of gonad to liver), and the monthly snail eggs in the soil were collected and counted simultaneously. In addition, the temperature and humidity of the soil and the daily data of air temperature and precipitation were measured or collected during the study period (every month). Results Both survival rate of snails and live snail density at the two environments were positively correlated with the temperatures of air and soil. With a slight bimodal distribution, the snail survival rate peaked from May to June, and in September. The living snail densities got the highest level in July and September in the river beach, and from April to May in the ditch. The regression equations of snail length (L) and width (W) were Lbeach = 2.355 + 1.678W (F = 2 989.43, P < 0.01) and Lditch = 0.478 + 2.091W (F = 2.989.43, P < 0.01), respectively. The snails were the ones with 4.07-11.81 mm in the length (8.98 ± 0.92) mm in the river beach, and the snails were the ones with 3.63-9.92 mm in the length (7.03 ± 0.82) mm in the ditch. The main snails were the ones with five to eight whorls of shell in the river beach and four to seven whorls of shell in the ditch. The proportions of snails with less than or equal to five whorls (in the river beach) and four (in the ditch) were the highest in May and September, about 20%. The ratios of male and female snails were 1.66 in the river beach and 1.22 in the ditch, respectively. The gonad development status of male and female snails was basically synchronous and had a bimodal abundance period - from April to May and September to October. The numbers of snail eggs in the soil among months were significantly different, reaching the highest in June in the river beach (100.8/0.1 m2), and May in the ditch (82.5/ 0.1 m2). Conclusion The principal periods of breeding and alternation of generations of snails are April-May and SeptemberOctober every year, which should also be the optimal time for mollusciciding in schistosomiasis susceptible zones.
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Affiliation(s)
- W Qi-Zhi
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - W Feng-Feng
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - Z Hai
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - S Cheng-Song
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - W Yue
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - Y Xiao-Mei
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - Z Li
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - Z Shi-Qing
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
| | - W Tian-Ping
- Anhui Provincial Institute of Schistosomiasis Control, Hefei 230061, Anhui Province, China
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Yu H, Yan H, Li J, Li Z, Zhang X, Ma Y, Mei L, Liu C, Cai L, Wang Q, Zhang F, Iwata N, Ikeda M, Wang L, Lu T, Li M, Xu H, Wu X, Liu B, Yang J, Li K, Lv L, Ma X, Wang C, Li L, Yang F, Jiang T, Shi Y, Li T, Zhang D, Yue W. Common variants on 2p16.1, 6p22.1 and 10q24.32 are associated with schizophrenia in Han Chinese population. Mol Psychiatry 2017; 22:954-960. [PMID: 27922604 DOI: 10.1038/mp.2016.212] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [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: 03/16/2016] [Revised: 09/15/2016] [Accepted: 10/14/2016] [Indexed: 02/05/2023]
Abstract
Many schizophrenia susceptibility loci have been identified through genome-wide association studies (GWASs) in European populations. However, until recently, schizophrenia GWASs in non-European populations were limited to small sample sizes and have yielded few loci associated with schizophrenia. To identify genetic risk variations for schizophrenia in the Han Chinese population, we performed a two-stage GWAS of schizophrenia comprising 4384 cases and 5770 controls, followed by independent replications of 13 single-nucleotide polymorphisms in an additional 4339 schizophrenia cases and 7043 controls of Han Chinese ancestry. Furthermore, we conducted additional analyses based on the results in the discovery stage. The combined analysis confirmed evidence of genome-wide significant associations in the Han Chinese population for three loci, at 2p16.1 (rs1051061, in an exon of VRK2, P=1.14 × 10-12, odds ratio (OR)=1.17), 6p22.1 (rs115070292 in an intron of GABBR1, P=4.96 × 10-10, OR=0.77) and 10q24.32 (rs10883795 in an intron of AS3MT, P=7.94 × 10-10, OR=0.87; rs10883765 at an intron of ARL3, P=3.06 × 10-9, OR=0.87). The polygenic risk score based on Psychiatric Genomics Consortium schizophrenia GWAS data modestly predicted case-control status in the Chinese population (Nagelkerke R2: 1.7% ~5.7%). Our pathway analysis suggested that neurological biological pathways such as GABAergic signaling, dopaminergic signaling, cell adhesion molecules and myelination pathways are involved in schizophrenia. These findings provide new insights into the pathogenesis of schizophrenia in the Han Chinese population. Further studies are needed to establish the biological context and potential clinical utility of these findings.
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Affiliation(s)
- H Yu
- Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - H Yan
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - J Li
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - Z Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education) and the Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China
- Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai, China
- Institute of Neuropsychiatric Science and Systems Biological Medicine, Shanghai Jiao Tong University, Shanghai, China
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - X Zhang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Y Ma
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - L Mei
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - C Liu
- Department of Psychiatry, the University of Melbourne, Parkville, VIC, Australia
| | - L Cai
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education) and the Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Q Wang
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- State Key Laboratory of Biotherapy, Psychiatric laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F Zhang
- Department of Clinical Psychology, Wuxi Mental Health Center of Nanjing Medical University, Wuxi, China
| | - N Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - M Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - L Wang
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - T Lu
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - M Li
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, the Second Military Medical University, Shanghai, China
| | - H Xu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, the Second Military Medical University, Shanghai, China
| | - X Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, the Second Military Medical University, Shanghai, China
| | - B Liu
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - J Yang
- Tianjin Anding Hospital, Tianjin, China
| | - K Li
- Hebei Mental Health Center, Baoding, Hebei, China
| | - L Lv
- The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - X Ma
- Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - C Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - L Li
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - F Yang
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - T Jiang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Y Shi
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education) and the Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China
- Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai, China
- Institute of Neuropsychiatric Science and Systems Biological Medicine, Shanghai Jiao Tong University, Shanghai, China
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - T Li
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- State Key Laboratory of Biotherapy, Psychiatric laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - D Zhang
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
- Peking-Tsinghua Joint Center for Life Sciences/PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - W Yue
- Department of Biochemistry, Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health &National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
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Liu C, Bousman CA, Pantelis C, Skafidas E, Zhang D, Yue W, Everall IP. Pathway-wide association study identifies five shared pathways associated with schizophrenia in three ancestral distinct populations. Transl Psychiatry 2017; 7:e1037. [PMID: 28221366 PMCID: PMC5438037 DOI: 10.1038/tp.2017.8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/30/2016] [Indexed: 02/08/2023] Open
Abstract
Genome-wide association studies have confirmed the polygenic nature of schizophrenia and suggest that there are hundreds or thousands of alleles associated with increased liability for the disorder. However, the generalizability of any one allelic marker of liability is remarkably low and has bred the notion that schizophrenia may be better conceptualized as a pathway(s) disorder. Here, we empirically tested this notion by conducting a pathway-wide association study (PWAS) encompassing 255 experimentally validated Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways among 5033 individuals diagnosed with schizophrenia and 5332 unrelated healthy controls across three distinct ethnic populations; European-American (EA), African-American (AA) and Han Chinese (CH). We identified 103, 74 and 87 pathways associated with schizophrenia liability in the EA, CH and AA populations, respectively. About half of these pathways were uniquely associated with schizophrenia liability in each of the three populations. Five pathways (serotonergic synapse, ubiquitin mediated proteolysis, hedgehog signaling, adipocytokine signaling and renin secretion) were shared across all three populations and the single-nucleotide polymorphism sets representing these five pathways were enriched for single-nucleotide polymorphisms with regulatory function. Our findings provide empirical support for schizophrenia as a pathway disorder and suggest schizophrenia is not only a polygenic but likely also a poly-pathway disorder characterized by both genetic and pathway heterogeneity.
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Affiliation(s)
- C Liu
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Carlton South, VIC, Australia
| | - C A Bousman
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Carlton South, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of General Practice, The University of Melbourne, Parkville, VIC, Australia
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - C Pantelis
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Carlton South, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Electrical and Electronic Engineering, Centre for Neural Engineering (CfNE), University of Melbourne, Carlton South, VIC, Australia
- NorthWestern Mental Health, Melbourne, VIC, Australia
| | - E Skafidas
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Carlton South, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Electrical and Electronic Engineering, Centre for Neural Engineering (CfNE), University of Melbourne, Carlton South, VIC, Australia
| | - D Zhang
- Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health & National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
- Peking-Tsinghua Joint Center for Life Sciences/PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - W Yue
- Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health & National Clinical Research Center for Mental Disorders (Peking University), Beijing, China
| | - I P Everall
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Carlton South, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Electrical and Electronic Engineering, Centre for Neural Engineering (CfNE), University of Melbourne, Carlton South, VIC, Australia
- NorthWestern Mental Health, Melbourne, VIC, Australia
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Yang G, Cheng QL, Li CL, Jia YL, Yue W, Pei XT, Liu Y, Zhao JH, Du J, Ao QG. [High glucose reduced the repair function of kidney stem cells conditional medium to the hypoxia-injured renal tubular epithelium cells]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:125-130. [PMID: 28203018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate the impacts of high glucose on the repair function of kidney stem cells (KSC) conditional medium to the hypoxia-injured renal tubular epithelium cells (RTEC). METHODS KSC were isolated from the renal papilla in 4-week-Sprague-Dawley rats. The KSC were pretreated in media with high glucose (30 mmol/L) or with normal glucose (5.6 mmol/L), respectively. The supernatants of the pre-treated KSC were collected as the conditional media. The hypoxia/reoxygenation (H/R) model of rat RTEC was established using the NRK-52E cell line. The effects of KSC conditional media on the H/R RTEC were investigated. RESULTS (1) The best H/R model of RTEC was established using hypoxia for 4 h and reoxygenation 2 h. (2) After hypoxia, the early and late cell apoptosis rates of the H/R RTEC were increased. The H/R RTEC were co-cultured with KSC conditional media for 12 h and 24 h, respectively. The H/R RTEC were co-cultured with DMEM/F12 as a control group. The cell apoptosis rate of H/R RTEC was lower after co-cultured with KSC conditional media (P<0.01), and the cell apoptosis rate of H/R RTEC in high glucose group was much higher than that in normal glucose group after co-cultured 24 h (P=0.02). (3) After hypoxia, the lactic dehydrogenase (LDH) and malondialdehyde (MDA) levels of the H/R RTEC supernatant were increased, and the superoxide dismutase (SOD) level decreased. The LDH and MDA levels were lower and the SOD level was higher after co-cultured with KSC conditional media for 12 h and 24 h, respectively (P<0.01). The LDH and MDA levels of H/R RTEC supernatant were much higher in the high glucose group than in the normal glucose group (P<0.05), and the SOD level of H/R RTEC supernatant was much lower in the high glucose group than in the normal glucose group (P<0.01). CONCLUSION KSC conditional media could repair the H/R injury of RTEC. The effects were mainly by inhibiting cell apoptosis, and reducing oxidative stress; the anti-cell apoptosis ability and the anti-oxidative stress capacity of the conditional medium were reduced after KSC were pre-treated with high glucose.
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Affiliation(s)
- G Yang
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - Q L Cheng
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - C L Li
- Department of Geriatric Endocrinology, PLA General Hospital, Beijing 100853, China
| | - Y L Jia
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - W Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China
| | - X T Pei
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China
| | - Y Liu
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - J H Zhao
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - J Du
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
| | - Q G Ao
- Department of Geriatric Nephrology, PLA General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
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Sheng L, Olsen S, Hu J, Yue W, Means W, Zhu M. Inhibitory effects of grape seed extract on growth, quorum sensing, and virulence factors of CDC “top-six” non-O157 Shiga toxin producing E. coli. Int J Food Microbiol 2016; 229:24-32. [DOI: 10.1016/j.ijfoodmicro.2016.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 03/15/2016] [Accepted: 04/01/2016] [Indexed: 10/22/2022]
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Ji S, Li A, Wu K, Deng C, Dong F, Li L, Zhou T, Yue W, Wang CY, Lu W. Brief Questionnaire Derived from PANSS Using a General Probability Model to Assess and Monitor the Clinical Features of Schizophrenia. Pharmacopsychiatry 2016; 49:117-23. [PMID: 26808834 DOI: 10.1055/s-0035-1569360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AIM Patients with schizophrenia require continuous treatment much longer than the duration of their hospitalization, which makes their family members essential in their medical care. However, the evaluation of the disease state could only be done by professionals. This prompted us to seek potent indicators of disease states that are understandable and easy to use for the patients' family. METHOD Specific items were firstly extracted from the total PANSS scale. Then 3 096 PANSS scores were analyzed using a nonlinear mixed-effects model (NONMEM). A questionnaire was subsequently developed for family members to assess and monitor the overall severity of schizophrenia. Finally this questionnaire was validated in 33 patients. RESULTS 2 items (P1 and N4) were extracted from the 8 effective remission items according to the correlation coefficients between the total PANSS score and different combinations of items. P1N4 was defined as the sum of these 2 items. A model was then developed to describe the probability of PANSS≥60, with P1N4 as indicators. The results indicated that P1N4 could make a good predictor of the overall probability of PANSS≥60, which was independent of treatment. A brief questionnaire with 7 questions was developed based on the results. External validation results indicated the questionnaire's suitability for a good assessment. CONCLUSION Questionnaire developed based on P1 and N4 may facilitate the patients' family members to better understand the disease state and help to prevent relapse.
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Affiliation(s)
- S Ji
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - A Li
- Center of Schizophrenia, Beijing Institute for Brain Disorders, Laboratory of Brain Disorders (Capital Medical University), Beijing, China
| | - K Wu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - C Deng
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - F Dong
- Center of Schizophrenia, Beijing Institute for Brain Disorders, Laboratory of Brain Disorders (Capital Medical University), Beijing, China
| | - L Li
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - T Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - W Yue
- Institute of Mental Health, The Sixth Hospital, Peking University, Beijing, China
| | - C-Y Wang
- Center of Schizophrenia, Beijing Institute for Brain Disorders, Laboratory of Brain Disorders (Capital Medical University), Beijing, China
| | - W Lu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
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Ren A, Wang Q, Fang Z, Gao M, Wang H, Zhang J, Xu W, Yue W, Yin L, Liu Z, Li X, Ding B. Pharmacokinetic study of isatin in dog plasma by liquid chromatography tandem mass spectrometry. Panminerva Med 2015; 57:177-182. [PMID: 26018409] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM A sensitive and selective method was developed and validated to study the pharmacokinetics of isatin. METHODS The blood samples were pretreated by protein precipitation method using methanol. Quetiapine was used as an internal standard. After pretreatment, the samples were assayed by LC/MS/MS method and the pharmacokinetic parameters were calculated by WinNonlin 5.2 using non-compartment model. The separation was performed on a Venusil XBP PH column (5 µm, 2.0×100 mm) with an isocratic mobile phase consisted of methanol-water (containing 50 mM ammonium formate) (65:35, v/v) at a flow rate of 0.3 mL/min. The Agilent G6410B triple quadrupole LC/MS system was operated under the multiple reactions monitoring mode (MRM) using the electrospray ionization technique in positive mode. RESULTS The lower limits of quantification (LLOQ) of the analyte of the method was 10 ng/mL. The method was linear with correlation coefficient >0.995. The intraday and interday accuracy and precision of the assay were acceptable. CONCLUSION This method has been applied successfully to a pharmacokinetic study involving the oral and intravenous administration of isatin to beagle dogs.
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Affiliation(s)
- A Ren
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, China -
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Wang X, Wu Y, Wu Q, Qian Y, Yue W, Liang Q. Ultra-High Performance Liquid Chromatography—Tandem Mass Spectrometry for Rapid Analysis of Seven Phenolic Compounds of Sparganii Rhizoma. ACTA CHROMATOGR 2015. [DOI: 10.1556/achrom.27.2015.4.12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yang Y, Ma D, Xu W, Chen F, Du T, Yue W, Shao S, Yuan G. Exendin-4 reduces tau hyperphosphorylation in type 2 diabetic rats via increasing brain insulin level. Mol Cell Neurosci 2015; 70:68-75. [PMID: 26640240 DOI: 10.1016/j.mcn.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/30/2015] [Accepted: 10/15/2015] [Indexed: 12/19/2022] Open
Abstract
Type 2 diabetes (T2D) is a high risk factor for Alzheimer's disease (AD). Our previous study identified that hyperphosphorylation of tau protein, which is one of the pathophysiologic hallmarks of AD, also occurred in T2D rats' brain; while glucagon-like peptide-1 (GLP-1) mimetics, a type of drug used in T2D, could decrease the phosphorylation of tau, probably via augmenting insulin signaling pathway. The purpose of this study was to further explore the mechanisms that underlie the effect of exendin-4 (ex-4, a GLP-1 receptor agonist) in reducing tau phosphorylation. We found that peripheral ex-4 injection in T2D rats reduced hyperphosphorylation of tau protein in rat hippocampus, probably via increasing hippocampal insulin which activated insulin signaling. Furthermore, we found that ex-4 could neither activate insulin signaling, nor reduce tau phosphorylation in HT22 neuronal cells in the absence of insulin. These results suggested that insulin is required in reduction of tau hyperphosphorylation by ex-4 in brain rats with T2D.
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Affiliation(s)
- Yan Yang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Delin Ma
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Weijie Xu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Fuqiong Chen
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Tingting Du
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Wenzhu Yue
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China
| | - Shiying Shao
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China.
| | - Gang Yuan
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. PR China.
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Wang HP, Cui HK, Yue W, Yan RF, Ren JP, Zhai ZS, Liang CH, Yang RM, Han DM. Determination of patellar ligament and anterior cruciate ligament geometry using MRI. Genet Mol Res 2015; 14:12352-61. [PMID: 26505384 DOI: 10.4238/2015.october.16.1] [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
Ligament geometry is crucial to surgical treatment success in anterior cruciate ligament (ACL) injury. This study aimed to optimize the MRI technique to elucidate the geometry of the patellar ligament (PL) and ACL in vivo. A 1.5-T superconducting MRI system with a special surface coil and fast spin echo was used to acquire high-resolution T1-weighted images (H-T1WI) of the ACL. The sagittal plane angle was 10° to 15° towards the inner side of the vertical line of the tangent line axis of the femoral intercondylar fossa. The H-T1WI images of the PL were centered at the lower margin of the patella and the center of the tibial tuberosity. The lengths of the PL and ACL were measured using a Radworks 5.1 workstation. ACL and PL lengths were compared between left and right knees and between genders, and left PL length measurements obtained separately by three doctors underwent correlation analysis. The quality of the images satisfied the clinical measurement requirements. The duration of sagittal image acquisition was 2 min and 25 s. The average PL length was 42.20 ± 4.21 and 40.15 ± 4.00 mm, and the average ACL length was 36.98 ± 4.12 and 35.80 ± 4.67 mm, in male and female subjects, respectively. The intraclass correlation coefficients of the PL lengths obtained by the three specialists were greater than 0.997. This MRI technique provides highly stable and repeatable in vivo data of PL and ACL geometry relevant to ACL reconstruction surgery with PL grafts.
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Affiliation(s)
- H P Wang
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - H K Cui
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - W Yue
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - R F Yan
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - J P Ren
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - Z S Zhai
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - C H Liang
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - R M Yang
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
| | - D M Han
- Image Center, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, China
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Yue W, Liu Y, Ding W, Jiang W, Huang J, Zhang J, Liu J. The predictive value of the prealbumin-to-fibrinogen ratio in patients with acute pancreatitis. Int J Clin Pract 2015; 69:1121-8. [PMID: 26133088 DOI: 10.1111/ijcp.12682] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Early identification of severe acute pancreatitis (SAP) progression is important in acute pancreatitis (AP) treatment. The Ranson, APACHE II and CTSI systems are difficult to use and exhibit limited predictive value. Prealbumin and fibrinogen are acute phase reactants generally used to assess the nutritional statuses and coagulation functions of AP patients, respectively. Here, we explored the value of the combination of these two markers for evaluating AP severity and prognosis. METHODS One hundred and sixty-nine AP patients, including mild AP (MAP) (n = 101) and severe AP (SAP) patients (n = 68), were enrolled. Their Ranson, APACHE II and CTSI scores, routine laboratory test results, and prealbumin and fibrinogen levels were determined after admission. Multivariate regression analysis was performed to determine the independent predictors of AP severity. ROC curves were generated to determine the suitabilities of prealbumin and fibrinogen levels and the above-mentioned scores for SAP prediction. RESULTS The SAP patients exhibited higher scores, white blood cell counts, CRP and fibrinogen levels but lower calcium, prealbumin levels and prealbumin/fibrinogen ratio than the MAP patients (p < 0.05). The multivariate regression analysis demonstrated that the prealbumin/fibrinogen ratio was a good predictor of severity and outperformed CRP. The prealbumin/fibrinogen ratio was correlated with CRP, hospitalisation length and complication occurrence in SAP. The ROC curve analyses showed that the prealbumin/fibrinogen ratio exhibited superior sensitivity, specificity, PPV and NPV for SAP prediction over the scoring systems. With a cut-off of 31.70 mg/g, the sensitivity, specificity, PPV and NPV were 76.5%, 94.1%, 89.6% and 85.6%, respectively. CONCLUSIONS The prealbumin/fibrinogen ratio is a promising predictor of AP severity and prognosis.
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Affiliation(s)
- W Yue
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Liu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - W Ding
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - W Jiang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - J Huang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - J Zhang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - J Liu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
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Niu J, Yue W, Song Y, Zhang Y, Qi X, Wang Z, Liu B, Shen H, Hu X. Prevention of acute liver allograft rejection by IL-10-engineered mesenchymal stem cells. Clin Exp Immunol 2014; 176:473-84. [PMID: 24527865 DOI: 10.1111/cei.12283] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2014] [Indexed: 01/02/2023] Open
Abstract
Hepatic allograft rejection remains a challenging problem, with acute rejection episode as the major barrier for long-term survival in liver transplant recipients. To explore a strategy to prevent allograft rejection, we hypothesized that mesenchymal stem cells (MSCs) genetically engineered with interleukin-10 (IL-10) could produce beneficial effects on orthotopic liver transplantation (OLT) in the experimental rat model. Syngeneic MSCs transduced with IL-10 were delivered via the right jugular vein 30 min post-orthotopic transplantation in the rat model. To evaluate liver morphology and measure cytokine concentration, the blood and liver samples from each animal group were collected at different time-points (3, 5 and 7 days) post-transplantation. The mean survival time of the rats treated with MSCs-IL-10 was shown to be much longer than those treated with saline. According to Banff scheme grading, the saline group scores increased significantly compared with those in the MSCs-IL-10 group. Retinoid acid receptor-related orphan receptor gamma t (RORγt) expression was more increased in the saline group compared to those in the MSCs-IL-10 group in a time-dependent manner; forkhead box protein 3 (FoxP3) expression also decreased significantly in the saline group compared with those in the MSCs-IL-10 group in a time-dependent manner. The expression of cytokines [IL-17, IL-23, IL-6, interferon (IFN)-γ and tumour necrosis factor (TNF)-α] in the saline groups increased significantly compared with the time-point-matched MSCs-IL-10 group, whereas cytokine expression of (IL-10, TGF-β1) was deceased markedly compared to that in the MSCs-IL-10 group. These results suggest a potential role for IL-10-engineered MSC therapy to overcome clinical liver transplantation rejection.
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Affiliation(s)
- J Niu
- General Surgery of the Hospital Affiliated Xuzhou Medical College, Xuzhou, China
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Garcia Martin A, Fernandez Golfin C, Salido Tahoces L, Fernandez Santos S, Jimenez Nacher J, Moya Mur J, Velasco Valdazo E, Hernandez Antolin R, Zamorano Gomez J, Veronesi F, Corsi C, Caiani E, Lamberti C, Tsang W, Holmgren C, Guo X, Bateman M, Iaizzo P, Vannier M, Lang R, Patel A, Adamayn K, Tumasyan LR, Chilingaryan A, Nasr G, Eleraki A, Farouk N, Axelsson A, Langhoff L, Jensen M, Vejlstrup N, Iversen K, Bundgaard H, Watanabe T, Iwai-Takano M, Attenhofer Jost CH, Pfyffer M, Seifert B, Scharf C, Candinas R, Medeiros-Domingo A, Chin JY, Yoon H, Vollbon W, Singbal Y, Rhodes K, Wahi S, Katova TM, Simova II, Hristova K, Kostova V, Pauncheva B, Bircan A, Sade L, Eroglu S, Pirat B, Okyay K, Bal U, Muderrisoglu H, Heggemann F, Buggisch H, Welzel G, Doesch C, Hansmann J, Schoenberg S, Borggrefe M, Wenz F, Papavassiliu T, Lohr F, Roussin I, Drakopoulou M, Rosen S, Sharma R, Prasad S, Lyon A, Carpenter J, Senior R, Breithardt OA, Razavi H, Arya A, Nabutovsky Y, Ryu K, Gaspar T, Kosiuk J, Eitel C, Hindricks G, Piorkowski C, Pires S, Nunes A, Cortez-Dias N, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Baron T, Johansson K, Flachskampf F, Christersson C, Pires S, Cortez-Dias N, Nunes A, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Santoro A, Federico Alvino F, Giovanni Antonelli G, Raffaella De Vito R, Roberta Molle R, Sergio Mondillo S, Gustafsson M, Alehagen U, Johansson P, Tsukishiro Y, Onishi T, Chimura M, Yamada S, Taniguchi Y, Yasaka Y, Kawai H, Souza JRM, Zacharias LGT, Pithon KR, Ozahata TM, Cliquet AJ, Blotta MH, Nadruz WJ, Fabiani I, Conte L, Cuono C, Liga R, Giannini C, Barletta V, Nardi C, Delle Donne M, Palagi C, Di Bello V, Glaveckaite S, Valeviciene N, Palionis D, Laucevicius A, Hristova K, Bogdanova V, Ferferieva V, Shiue I, Castellon X, Boles U, Rakhit R, Shiu MF, Gilbert T, Papachristidis A, Henein MY, Westholm C, Johnson J, Jernberg T, Winter R, Ghosh Dastidar A, Augustine D, Cengarle M, Mcalindon E, Bucciarelli-Ducci C, Nightingale A, Onishi T, Watanabe T, Fujita M, Mizukami Y, Sakata Y, Nakatani S, Nanto S, Uematsu M, Saraste A, Luotolahti M, Varis A, Vasankari T, Tunturi S, Taittonen M, Rautakorpi P, Airaksinen J, Ukkonen H, Knuuti J, Boshchenko A, Vrublevsky A, Karpov R, Yoshikawa H, Suzuki M, Hashimoto G, Kusunose Y, Otsuka T, Nakamura M, Sugi K, Rosner S, Orban M, Lesevic H, Karl M, Hadamitzky M, Sonne C, Panaro A, Martinez F, Huguet M, Moral S, Palet J, Oller G, Cuso I, Jornet A, Rodriguez Palomares J, Evangelista A, Stoebe S, Tarr A, Pfeiffer D, Hagendorff A, Gilmanov D, Baroni M, Cerone E, Galli E, Berti S, Glauber M, Soesanto A, Yuniadi Y, Mansyur M, Kusmana D, Venkateshvaran A, Dash PK, Sola S, Govind SC, Shahgaldi K, Winter R, Brodin LA, Manouras A, Dokainish H, Sadreddini M, Nieuwlaat R, Lonn E, Healey J, Nguyen V, Cimadevilla C, Dreyfus J, Codogno I, Vahanian A, Messika-Zeitoun D, Lim YJ, Kawamura A, Kawano S, Polte C, Gao S, Lagerstrand K, Cederbom U, Bech-Hanssen O, Baum J, Beeres F, Van Hall S, Boering Y, Zeus T, Kehmeier E, Kelm M, Balzer J, Della Mattia A, Pinamonti B, Abate E, Nicolosi G, Proclemer A, Bassetti M, Luzzati R, Sinagra G, Hlubocka Z, Jiratova K, Dostalova G, Hlubocky J, Dohnalova A, Linhart A, Palecek T, Sonne C, Lesevic H, Karl M, Rosner S, Hadamitzky M, Ott I, Malev E, Reeva S, Zemtsovsky E, Igual Munoz B, Alonso Fernandez Pau P, Miro Palau Vicente V, Maceira Gonzalez Alicia A, Estornell Erill J, Andres La Huerta A, Donate Bertolin L, Valera Martinez F, Salvador Sanz Antonio A, Montero Argudo Anastasio A, Nemes A, Kalapos A, Domsik P, Chadaide S, Sepp R, Forster T, Onaindia J, Arana X, Cacicedo A, Velasco S, Rodriguez I, Capelastegui A, Sadaba M, Gonzalez J, Salcedo A, Laraudogoitia E, Archontakis S, Gatzoulis K, Vlasseros I, Arsenos P, Tsiachris D, Vouliotis A, Sideris S, Karistinos G, Kalikazaros I, Stefanadis C, Ancona R, Comenale Pinto S, Caso P, Coppola M, Arenga F, Cavallaro C, Vecchione F, D'onofrio A, Calabro R, Correia CE, Moreira D, Cabral C, Santos J, Cardoso J, Igual Munoz B, Maceira Gonzalez A, Estornell Erill Jordi J, Jimenez Carreno R, Arnau Vives M, Monmeneu Menadas J, Domingo-Valero D, Sanchez Fernandez E, Montero Argudo Anastasio A, Zorio Grima E, Cincin A, Tigen K, Karaahmet T, Dundar C, Sunbul M, Guler A, Bulut M, Basaran Y, Mordi I, Carrick D, Berry C, Tzemos N, Cruz I, Ferreira A, Rocha Lopes L, Joao I, Almeida A, Fazendas P, Cotrim C, Pereira H, Ochoa JP, Fernandez A, Filipuzzi J, Casabe J, Salmo J, Vaisbuj F, Ganum G, Di Nunzio H, Veron L, Guevara E, Salemi V, Nerbass F, Portilho N, Ferreira Filho J, Pedrosa R, Arteaga-Fernandez E, Mady C, Drager L, Lorenzi-Filho G, Marques J, Almeida AMG, Menezes M, Silva G, Placido R, Amaro C, Brito D, Diogo A, Lourenco MR, Azevedo O, Moutinho J, Nogueira I, Machado I, Portugues J, Quelhas I, Lourenco A, Calore C, Muraru D, Melacini P, Badano L, Mihaila S, Puma L, Peluso D, Casablanca S, Ortile A, Iliceto S, Kang MK, Yu S, Park J, Kim S, Park T, Mun HS, C S, Cho SR, Han S, Lee N, Khalifa EA, Hamodraka E, Kallistratos M, Zacharopoulou I, Kouremenos N, Mavropoulos D, Tsoukas A, Kontogiannis N, Papanikolaou N, Tsoukanas K, Manolis A, Villagraz Tecedor L, Jimenez Lopez Guarch C, Alonso Chaterina S, Blazquez Arrollo L, Lopez Melgar B, Veitia Sarmiento A, Mayordomo Gomez S, Escribano Subias M, Lichodziejewska B, Kurnicka K, Goliszek S, Dzikowska Diduch O, Kostrubiec M, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Sakata K, Ishiguro M, Kimura G, Uesugo Y, Takemoto K, Minamishima T, Futuya M, Matsue S, Satoh T, Yoshino H, Signorello M, Gianturco L, Colombo C, Stella D, Atzeni F, Boccassini L, Sarzi-Puttini P, Turiel M, Kinova E, Deliiska B, Krivoshiev S, Goudev A, De Stefano F, Santoro C, Buonauro A, Schiano-Lomoriello V, Muscariello R, De Palma D, Galderisi M, Ranganadha Babu B, Chidambaram S, Sangareddi V, Dhandapani V, Ravi M, Meenakshi K, Muthukumar D, Swaminathan N, Ravishankar G, Bruno RM, Giardini G, Catizzo B, Brustia R, Malacrida S, Armenia S, Cauchy E, Pratali L, Cesana F, Alloni M, Vallerio P, De Chiara B, Musca F, Belli O, Ricotta R, Siena S, Moreo A, Giannattasio C, Magnino C, Omede' P, Avenatti E, Presutti D, Sabia L, Moretti C, Bucca C, Gaita F, Veglio F, Milan A, Eichhorn J, Springer W, Helling A, Alarajab A, Loukanov T, Ikeda M, Kijima Y, Akagi T, Toh N, Oe H, Nakagawa K, Tanabe Y, Watanabe N, Ito H, Hascoet S, Hadeed K, Marchal P, Bennadji A, Peyre M, Dulac Y, Heitz F, Alacoque X, Chausseray G, Acar P, Kong W, Ling L, Yip J, Poh K, Vassiliou V, Rekhraj S, Hoole S, Watkinson O, Kydd A, Boyd J, Mcnab D, Densem C, Shapiro L, Rana B, Potpara T, Djikic D, Polovina M, Marcetic Z, Peric V, Lip G, Gaudron P, Niemann M, Herrmann S, Hu K, Strotmann J, Beer M, Bijnens B, Liu D, Ertl G, Weidemann F, Peric V, Jovanovic A, Djikic D, Otasevic P, Kochanowski J, Piatkowski R, Scislo P, Grabowski M, Marchel M, Opolski G, Bandera F, Guazzi M, Arena R, Corra U, Ghio S, Forfia P, Rossi A, Dini F, Cahalin L, Temporelli L, Rallidis L, Tsangaris I, Makavos G, Anthi A, Pappas A, Orfanos S, Lekakis J, Anastasiou-Nana M, Kuznetsov VA, Krinochkin DV, Yaroslavskaya EI, Zaharova EH, Pushkarev GS, Mizia-Stec K, Wita K, Mizia M, Loboz-Grudzien K, Szwed H, Kowalik I, Kukulski T, Gosciniak P, Kasprzak J, Plonska-Gosciniak E, Cimino S, Pedrizzetti G, Tonti G, Cicogna F, Petronilli V, De Luca L, Iacoboni C, Agati L, Hoffmann R, Barletta G, Von Bardeleben S, Kasprzak J, Greis C, Vanoverschelde J, Becher H, Galrinho A, Moura Branco L, Fiarresga A, Cacela D, Ramos R, Cruz Ferreira R, Van Den Oord S, Akkus Z, Bosch J, Renaud G, Sijbrands E, Verhagen H, Van Der Lugt A, Van Der Steen A, Schinkel A, Mordi I, Tzemos N, Stanton T, Delgado D, Yu E, Drakopoulou M, Gonzalez-Gonzalez A, Karonis T, Roussin I, Babu-Narayan S, Swan L, Senior R, Li W, Parisi V, Pagano G, Pellegrino T, Femminella G, De Lucia C, Formisano R, Cuocolo A, Perrone Filardi P, Leosco D, Rengo G, Unlu S, Farsalinos K, Amelot K, Daraban A, Ciarka A, Delcroix M, Voigt J, Miskovic A, Poerner T, Goebel B, Stiller C, Moritz A, Sakata K, Uesugo Y, Kimura G, Ishiguro M, Takemoto K, Minamishima T, Futuya M, Satoh T, Yoshino H, Miyoshi T, Tanaka H, Kaneko A, Matsumoto K, Imanishi J, Motoji Y, Mochizuki Y, Minami H, Kawai H, Hirata K, Wutthimanop A, See O, Vathesathokit P, Yamwong S, Sritara P, Rosner A, Kildal A, Stenberg T, Myrmel T, How O, Capriolo M, Frea S, Giustetto C, Scrocco C, Benedetto S, Grosso Marra W, Morello M, Gaita F, Garcia-Gonzalez P, Cozar-Santiago P, Chacon-Hernandez N, Ferrando-Beltran M, Fabregat-Andres O, De La Espriella-Juan R, Fontane-Martinez C, Jurado-Sanchez R, Morell-Cabedo S, Ridocci-Soriano F, Mihaila S, Piasentini E, Muraru D, Peluso D, Casablanca S, Puma L, Naso P, Iliceto S, Vinereanu D, Badano L, Tarzia P, Villano A, Figliozzi S, Russo G, Parrinello R, Lamendola P, Sestito A, Lanza G, Crea F, Sulemane S, Panoulas V, Bratsas A, Frankel A, Nihoyannopoulos P, Dores H, Andrade M, Almeida M, Goncalves P, Branco P, Gaspar A, Gomes A, Horta E, Carvalho M, Mendes M, Yue W, Li X, Chen Y, Luo Y, Gu P, Yiu K, Siu C, Tse H, Cho E, Lee S, Hwang B, Kim D, Jang S, Jeon H, Youn H, Kim J. Poster session Thursday 12 December - PM: 12/12/2013, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yue W, Guo Z. Blockade of spinal nerves inhibits expression of neural growth factor in the myocardium at an early stage of acute myocardial infarction in rats. Br J Anaesth 2012; 109:345-51. [DOI: 10.1093/bja/aes144] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Gong C, Bauvy C, Tonelli G, Yue W, Deloménie C, Nicolas V, Zhu Y, Domergue V, Marin-Esteban V, Tharinger H, Delbos L, Gary-Gouy H, Morel AP, Ghavami S, Song E, Codogno P, Mehrpour M. Beclin 1 and autophagy are required for the tumorigenicity of breast cancer stem-like/progenitor cells. Oncogene 2012; 32:2261-72, 2272e.1-11. [PMID: 22733132 PMCID: PMC3679409 DOI: 10.1038/onc.2012.252] [Citation(s) in RCA: 260] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Malignant breast tissue contains a rare population of multi-potent cells with the capacity to self-renew; these cells are known as cancer stem-like cells (CSCs) or tumor-initiating cells. Primitive mammary CSCs/progenitor cells can be propagated in culture as floating spherical colonies termed ‘mammospheres'. We show here that the expression of the autophagy protein Beclin 1 is higher in mammospheres established from human breast cancers or breast cancer cell lines (MCF-7 and BT474) than in the parental adherent cells. As a result, autophagic flux is more robust in mammospheres. We observed that basal and starvation-induced autophagy flux is also higher in aldehyde dehydrogenase 1-positive (ALDH1+) population derived from mammospheres than in the bulk population. Beclin 1 is critical for CSC maintenance and tumor development in nude mice, whereas its expression limits the development of tumors not enriched with breast CSCs/progenitor cells. We found that decreased survival in autophagy-deficient cells (MCF-7 Atg7 knockdown cells) during detachment does not contribute to an ultimate deficiency in mammosphere formation. This study demonstrates that a prosurvival autophagic pathway is critical for CSC maintenance, and that Beclin 1 plays a dual role in tumor development.
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Affiliation(s)
- C Gong
- INSERM U984, Faculté de Pharmacie, Chatenay Malabry, France
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Wang M, Yan G, Yue W, Siu C, Tse H, Perperidis A, Cusack D, White A, Macgillivray T, Mcdicken W, Anderson T, Ryabov V, Shurupov V, Suslova T, Markov V, Elmstedt N, Ferm Widlund K, Lind B, Brodin LA, Westgren M, Mantovani F, Barbieri A, Bursi F, Valenti C, Quaglia M, Modena M, Peluso D, Muraru D, Dal Bianco L, Beraldo M, Solda' E, Tuveri M, Cucchini U, Al Mamary A, Badano L, Iliceto S, Goncalves A, Almeria C, Marcos-Alberca P, Feltes G, Hernandez-Antolin R, Rodriguez H, Maroto L, Silva Cardoso J, Macaya C, Zamorano J, Squarciotta S, Innocenti F, Guzzo A, Bianchi S, Lazzeretti D, De Villa E, Vicidomini S, Del Taglia B, Donnini C, Pini R, Mennie C, Salmasi AM, Kutyifa V, Nagy V, Edes E, Apor A, Merkely B, Nyrnes S, Lovstakken L, Torp H, Haugen B, Said K, Shehata A, Ashour Z, El-Tobgy S, Cameli M, Bigio E, Lisi M, Righini F, Franchi F, Scolletta S, Mondillo S, Gayat E, Weinert L, Yodwut C, Mor-Avi V, Lang R, Hrynchyshyn N, Kachenoura N, Diebold B, Khedim R, Senesi M, Redheuil A, Mousseaux E, Perdrix L, Yurdakul S, Erdemir V, Tayyareci Y, Memic K, Yildirimturk O, Aytekin V, Gurel M, Aytekin S, Gargani L, Fernandez Cimadevilla C, La Falce S, Landi P, Picano E, Sicari R, Smedsrud MK, Gravning J, Eek C, Morkrid L, Skulstad H, Aaberge L, Bendz B, Kjekshus J, Edvardsen T, Bajraktari G, Hyseni V, Morina B, Batalli A, Tafarshiku R, Olloni R, Henein M, Mjolstad O, Snare S, Folkvord L, Helland F, Torp H, Haraldseth O, Grimsmo A, Haugen B, Berry M, Zaghden O, Nahum J, Macron L, Lairez O, Damy T, Bensaid A, Dubois Rande J, Gueret P, Lim P, Nciri N, Issaoui Z, Tlili C, Wanes I, Foudhil H, Dachraoui F, Grapsa J, Dawson D, Nihoyannopoulos P, Gianturco L, Turiel M, Atzeni F, Sarzi-Puttini P, Stella D, Donato L, Tomasoni L, Jung P, Mueller M, Huber T, Sevilmis G, Kroetz F, Sohn H, Panoulas V, Bratsas A, Dawson D, Nihoyannopoulos P, Raso R, Tartarisco G, Gargani L, La Falce S, Pioggia G, Picano E, Gargiulo P, Petretta M, Cuocolo A, Prastaro M, D'amore C, Vassallo E, Savarese G, Marciano C, Paolillo S, Perrone Filardi P, Aggeli C, Felekos I, Roussakis G, Poulidakis E, Pietri P, Toutouzas K, Stefanadis C, Kaladaridis A, Skaltsiotis I, Kottis G, Bramos D, Takos D, Matthaios I, Agrios I, Papadopoulou E, Moulopoulos S, Toumanidis S, Carrilho-Ferreira P, Cortez-Dias N, Jorge C, Silva D, Silva Marques J, Placido R, Santos L, Ribeiro S, Fiuza M, Pinto F, Stoickov V, Ilic S, Deljanin Ilic M, Kim W, Woo J, Bae J, Kim K, Descalzo M, Rodriguez J, Moral S, Otaegui I, Mahia P, Garcia Del Blanco L, Gonzalez Alujas T, Figueras J, Evangelista A, Garcia-Dorado D, Takeuchi M, Kaku K, Otani K, Iwataki M, Kuwaki H, Haruki N, Yoshitani H, Otsuji Y, Kukucka M, Pasic M, Unbehaun A, Dreysse S, Mladenow A, Kuppe H, Hetzer R, Rajamannan N, Yurdakul S, Tayyareci Y, Tanrikulu A, Yildirimturk O, Aytekin V, Aytekin S, Kristiansson L, Gustafsson S, Lindmark K, Henein MY, Evdoridis C, Stougiannos P, Thomopoulos M, Fosteris M, Spanos P, Sionis G, Giatsios D, Paschalis A, Sakellaris C, Trikas A, Yong ZY, Boerlage-Van Dijk K, Koch K, Vis M, Bouma B, Piek J, Baan J, Abid L, Frikha Z, Makni K, Maazoun N, Abid D, Hentati M, Kammoun S, Barbier P, Staron A, Cefalu' C, Berna G, Gripari P, Andreini D, Pontone G, Pepi M, Ring L, Rana B, Ho S, Wells F, Yurdakul S, Tayyareci Y, Yildirimturk O, Dogan A, Aytekin V, Aytekin S, Karaca O, Guler G, Guler E, Gunes H, Alizade E, Agus H, Gol G, Esen O, Esen A, Turkmen M, Agricola E, Ingallina G, Ancona M, Maggio S, Slavich M, Tufaro V, Oppizzi M, Margonato A, Orsborne C, Irwin B, Pearce K, Ray S, Garcia Alonso C, Vallejo N, Labata C, Lopez Ayerbe J, Teis A, Ferrer E, Nunez Aragon R, Gual F, Pedro Botet M, Bayes Genis A, Santos CM, Carvalho M, Andrade M, Dores H, Madeira S, Cardoso G, Ventosa A, Aguiar C, Ribeiras R, Mendes M, Petrovic M, Petrovic M, Milasinovic G, Vujisic-Tesic B, Nedeljkovic I, Zamaklar-Trifunovic D, Petrovic I, Draganic G, Banovic M, Boricic M, Villarraga H, Molini-Griggs Bs C, Silen-Rivera Bs P, Payne Mph Ms B, Koshino Md Phd Y, Hsiao Md J, Monivas Palomero V, Mingo Santos S, Mitroi C, Garcia Lunar I, Garcia Pavia P, Castro Urda V, Toquero J, Gonzalez Mirelis J, Cavero Gibanel M, Fernandez Lozano I, Oko-Sarnowska Z, Wachowiak-Baszynska H, Katarzynska-Szymanska A, Trojnarska O, Grajek S, Bellavia D, Pellikka P, Dispenzieri A, Oh JK, Polizzi V, Pitrolo F, Musumeci F, Miller F, Ancona R, Comenale Pinto S, Caso P, Severino S, Cavallaro C, Vecchione F, D'onofrio A, Calabro' R, Maceira Gonzalez AM, Ripoll C, Cosin-Sales J, Igual B, Salazar J, Belloch V, Cosin-Aguilar J, Pinamonti B, Iorio A, Bobbo M, Merlo M, Barbati G, Massa L, Faganello G, Di Lenarda A, Sinagra GF, Ishizu T, Seo Y, Enomoto M, Kameda Y, Ishibashi N, Inoue M, Aonuma K, Saleh A, Matsumori A, Negm H, Fouad H, Onsy A, Hamodraka E, Paraskevaidis I, Kallistratos M, Lezos V, Zamfir T, Manetos C, Mavropoulos D, Poulimenos L, Kremastinos D, Manolis A, Citro R, Rigo F, Ciampi Q, Patella M, Provenza G, Zito C, Tagliamonte E, Rotondi F, Silvestri F, Bossone E, Monivas Palomero V, Mingo Santos S, Beltran Correas P, Gutierrez Landaluce C, Mitroi C, Garcia Lunar I, Gonzalez Mirelis J, Cavero Gibanel M, Gomez Bueno M, Segovia Cubero J, Beladan C, Matei F, Popescu B, Calin A, Rosca M, Boanta A, Enache R, Savu O, Usurelu C, Ginghina C, Ciobanu AO, Dulgheru R, Magda S, Dragoi R, Florescu M, Vinereanu D, Silva Marques J, Robalo Martins S, Jorge C, Calisto C, Goncalves S, Ribeiro S, Barrigoto I, Carvalho De Sousa J, Almeida A, Nunes Diogo A, Sargento L, Satendra M, Sousa C, Lousada N, Palma Reis R, Schiano Lomoriello V, Esposito R, Santoro A, Raia R, Schiattarella P, Dores E, Galderisi M, Mansencal N, Caille V, Dupland A, Perrot S, Bouferrache K, Vieillard-Baron A, Jouffroy R, Moceri P, Liodakis E, Gatzoulis M, Li W, Dimopoulos K, Sadron M, Seguela PE, Arnaudis B, Dulac Y, Cognet T, Acar P, Shiina Y, Gatzoulis M, Uemura H, Li W, Kupczynska K, Kasprzak J, Michalski B, Lipiec P, Carvalho V, Almeida AMG, David C, Marques J, Silva D, Cortez-Dias N, Ferreira P, Amaro M, Costa P, Diogo A, Tritakis V, Ikonomidis I, Paraskevaidis I, Lekakis J, Tzortzis S, Kadoglou N, Papadakis I, Trivilou P, Koukoulis C, Anastasiou-Nana M, Bombardini T, Picano E, Gherardi S, Arpesella G, Maccherini M, Serra W, Magnani G, Del Bene R, Pasanisi E, Sicari R, Startari U, Panchetti L, Rossi A, Piacenti M, Morales M, Mansencal N, El Hajjaji I, El Mahmoud R, Digne F, Dubourg O, Gargani L, Agoston G, Moreo A, Pratali L, Moggi Pignone A, Pavellini A, Doveri M, Musca F, Varga A, Picano E, Pratali L, Faita F, Rimoldi S, Sartori C, Alleman Y, Salinas Salmon C, Villena M, Scherrer U, Picano E, Sicari R, Baptista R, Serra S, Castro G, Martins R, Salvador M, Monteiro P, Silva J, Szudi L, Temesvary A, Fekete B, Kassai I, Szekely L, Abdel Moneim SS, Martinez M, Mankad S, Bernier M, Dhoble A, Pellikka P, Chandrasekaran K, Oh J, Mulvagh S, Hong GR, Kim JY, Lee SC, Choi SH, Sohn IS, Seo HS, Choi JH, Cho KI, Yoon SJ, Lim SJ, Lipiec P, Wejner-Mik P, Kusmierek J, Plachcinska A, Szuminski R, Kasprzak J, Stoebe S, Tarr A, Trache T, Hagendorff A, Mor-Avi V, Yodwut C, Jenkins C, Kuhl H, Nesser H, Marwick T, Franke A, Niel J, Sugeng L, Lang R, Gustafsson S, Henein M, Soderberg S, Lindmark K, Lindqvist P, Necas J, Kovalova S, Saha SK, Kiotsekoglou A, Toole R, Govind S, Gopal A, Amzulescu MS, Florian A, Bogaert J, Janssens S, Voigt J, Parisi V, Losi M, Parrella L, Contaldi C, Chiacchio E, Caputi A, Scatteia A, Buonauro A, Betocchi S, Rimbas R, Dulgheru R, Mihaila S, Vinereanu D, Caputo M, Navarri R, Innelli P, Urselli R, Capati E, Ballo P, Furiozzi F, Favilli R, Mondillo S, Lindquist R, Miller A, Reece C, O'leary P, Cetta F, Eidem BW, Cikes M, Gasparovic H, Bijnens B, Velagic V, Kopjar T, Biocina B, Milicic D, Ta-Shma A, Nir A, Perles Z, Gavri S, Golender J, Rein A, Pinnacchio G, Barone L, Battipaglia I, Cosenza A, Marinaccio L, Coviello I, Scalone G, Sestito A, Lanza G, Crea F, Cakal S, Eroglu E, Ozkan B, Kulahcioglu S, Bulut M, Koyuncu A, Acar G, Alici G, Dundar C, Esen A, Labombarda F, Zangl E, Pellissier A, Bougle D, Maragnes P, Milliez P, Saloux E, Aggeli C, Lagoudakou S, Felekos I, Gialafos E, Poulidakis E, Tsokanis A, Roussakis G, Stefanadis C, Nagy A, Kovats T, Apor A, Vago H, Toth A, Sax B, Kovacs A, Merkely B, Elnoamany MF, Badran H, Abdelfattah I, Khalil T, Salama M, Butz T, Taubenberger C, Thangarajah F, Meissner A, Van Bracht M, Prull M, Yeni H, Plehn G, Trappe H, Rydman R, Bone D, Alam M, Caidahl K, Larsen F, Staron A, Gasior Z, Tabor Z, Sengupta P, Liu D, Niemann M, Hu K, Herrmann S, Stoerk S, Morbach C, Knop S, Voelker W, Ertl G, Weidemann F, Cawley P, Hamilton-Craig C, Mitsumori L, Maki J, Otto C, Astrom Aneq M, Nylander E, Ebbers T, Engvall J, Arvanitis P, Flachskampf F, Duvernoy O, De Torres Alba F, Valbuena Lopez S, Guzman Martinez G, Gomez De Diego J, Rey Blas J, Armada Romero E, Lopez De Sa E, Moreno Yanguela M, Lopez Sendon J, Aggeli C, Felekos I, Poulidakis E, Trikalinos N, Siasos G, Aggeli A, Roussakis G, Stefanadis C, Tomaszewski A, Kutarski A, Tomaszewski M, Ikonomidis I, Lekakis J, Tritakis V, Tzortzis S, Kadoglou N, Papadakis I, Trivilou P, Anastasiou-Nana M, Koukoulis C, Paraskevaidis I, Vriz O, Driussi C, Bettio M, Pavan D, Bossone E, Antonini Canterin F, Doltra Magarolas A, Fernandez-Armenta J, Silva E, Solanes N, Rigol M, Barcelo A, Mont L, Berruezo A, Brugada J, Sitges M, Ciciarello FL, Mandolesi S, Fedele F, Agati L, Marceca A, Rhee S, Shin S, Kim S, Yun K, Yoo N, Kim N, Oh S, Jeong J, Alabdulkarim N. Poster Session 4: Friday 9 December 2011, 14:00-18:00 * Location: Poster Area. European Journal of Echocardiography 2011. [DOI: 10.1093/ejechocard/jer216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Xiaozhen Z, Min G, Xuehui W, Yong Z, Ting Z, Yue W, Tingzhong W, Aiqun M. Sympathetic storm aggravate abnormal Kv4.2 ion channel membrane transposition in rat cardiomyocytes through endoplasmic reticulum stress. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zhang ZR, Yue W, Weimin L, Yuan C, Lijun W, Zhao Z, Zuyi Y. The investigation of the plasma miR-126 and miR-143 expression in patients with coronary heart disease. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Du M, Zhao JX, Yan X, Huang Y, Nicodemus LV, Yue W, McCormick RJ, Zhu MJ. Fetal muscle development, mesenchymal multipotent cell differentiation, and associated signaling pathways. J Anim Sci 2011; 89:583-90. [PMID: 20852073 PMCID: PMC4100697 DOI: 10.2527/jas.2010-3386] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [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] [Indexed: 12/17/2022] Open
Abstract
Enhancing muscle growth while reducing fat accumulation improves the efficiency of animal production. The fetal stage is crucial for skeletal muscle development. Fetal muscle development involves myogenesis, adipogenesis, and fibrogenesis from mesenchymal multipotent cells (MC), which are negatively affected by maternal nutrient deficiencies. Enhancing myogenesis increases the lean-to-fat ratio of animals, enhancing intramuscular adipogenesis increases intramuscular fat that is indispensible for the superior eating properties of meat because fat is the major contributor to meat flavor. The promotion of fibrogenesis leads to the accumulation of connective tissue, which contributes to the background toughness of meat and is undesirable. Thus, it is essential to regulate MC differentiation to enhance lean growth and improve meat quality. To date, our understanding of mechanisms regulating the lineage commitment of MC is limited. In this review, we first discuss the impact of maternal nutrient deficiency on fetal development, offspring body composition, and meat quality. Because maternal nutrition affects fetal muscle through altering MC differentiation, we then review several important extracellular morphogens regulating MC differentiation, including hedgehog, Wingless and Int (Wnt), and bone morphogenic proteins. Possible involvement of epigenetic modifications associated with histone deacetylases class IIa and histone acetyltransferase, p300, in MC differentiation is also discussed.
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Affiliation(s)
- M Du
- Developmental Biology Group, Department of Animal Science, University of Wyoming, Laramie 82071, USA.
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Weimin L, Lijun W, Yue W, Xiaojun L, Zuyi Y. e0435 The doublefaced metabolic and inflammatory effects of standard drug therapy in patients after drugeluting stent implantation. Heart 2010. [DOI: 10.1136/hrt.2010.208967.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yue W, Weiping Z, Weimin L, Xiaozhen Z, Lijun W, Zuyi Y. e0478 Pioglitazone attenuates proinflammatory state in nondiabetic patients after coronary drugeluting stent implantation. Heart 2010. [DOI: 10.1136/hrt.2010.208967.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Guan W, Wang Y, Hou L, Chen L, Li X, Yue W, Ma Y. Derivation and characteristics of pluripotent embryonic germ cells in duck. Poult Sci 2010; 89:312-7. [DOI: 10.3382/ps.2009-00413] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lv J, Jia H, Jiang Y, Ruan Y, Liu Z, Yue W, Beyreuther K, Tu P, Zhang D. Tenuifolin, an extract derived from tenuigenin, inhibits amyloid-beta secretion in vitro. Acta Physiol (Oxf) 2009; 196:419-25. [PMID: 19208093 DOI: 10.1111/j.1748-1716.2009.01961.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AIM Previous studies have shown that tenuigenin, a crude extract of Polygala tenuifolia Willd. that is commonly used in traditional Chinese herbal medicine for memory loss, can reduce the secretion of Abeta from cultured cells. However, the mechanism underlying this effect and the active compound derived from tenuigenin is unknown. In this study, a purified component of tenuigenin, tenuifolin, was examined and revealed to be an effective compound in vitro. METHODS Abeta secretion from three sets of COS-7 cells, each carrying a plasmid expressing a different form of APP was examined following the treatment with tenuifolin. Initially, tenuifolin was determined to have no inherent toxicity to either the transfected or wild type cells at the effective concentrations. Cells were then treated with 0.5-2.0 microg mL(-1) tenuifolin for 12 h and their media were examined via an ELISA for Abeta1-40 and Abeta-42. RESULTS We found that treatment with 2.0 microg mL(-1) tenuifolin significantly decreased Abeta secretion from COS-7 cells without altering the ratio of Abeta1-40 and Abeta-42. This effect is most probably due to inhibition of the beta-site APP cleaving enzyme as Abeta secretion was not inhibited from cells expressing the C99 fragment. CONCLUSION Tenuifolin is an effective compound from tenuigenin. We believe that this finding should lead the way for future experiments to determine the exact mechanism for tenuifolin's effect on Abeta secretion.
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Affiliation(s)
- J Lv
- Institute of Mental Health, Peking University, 100083 Beijing, China
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Li X, Yue W, Li Y, Zhang G. Source identification of lead-containing particles in the ambient air of the center of Shanghai by analyzing individual aerosol particles. J Radioanal Nucl Chem 2005. [DOI: 10.1007/s10967-005-0882-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Santen RJ, Song RX, Zhang Z, Kumar R, Jeng MH, Masamura A, Lawrence J, Berstein L, Yue W. Long-term estradiol deprivation in breast cancer cells up-regulates growth factor signaling and enhances estrogen sensitivity. Endocr Relat Cancer 2005; 12 Suppl 1:S61-73. [PMID: 16113100 DOI: 10.1677/erc.1.01018] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.3] [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] [Indexed: 11/27/2022]
Abstract
Deprivation of estrogen causes breast tumors in women to adapt and develop enhanced sensitivity to this steroid. Accordingly, women relapsing after treatment with oophorectomy, which substantially lowers estradiol for a prolonged period, respond secondarily to aromatase inhibitors with tumor regression. We have utilized in vitro and in vivo model systems to examine the biologic processes whereby long-term estradiol deprivation (LTED) causes cells to adapt and develop hypersensitivity to estradiol. Several mechanisms are associated with this response, including up-regulation of estrogen receptor-alpha (ERalpha) and the MAP kinase, phosphoinositol 3 kinase (PI3-K) and mammalian target of rapamycin (mTOR) growth factor pathways. ERalpha is four- to tenfold up-regulated and co-opts a classical growth factor pathway using Shc, Grb-2 and Sos. This induces rapid non-genomic effects which are enhanced in LTED cells. The molecules involved in the non-genomic signaling process have been identified. Estradiol binds to cell membrane-associated ERalpha, which physically associates with the adaptor protein Shc, and induces its phosphorylation. In turn, Shc binds Grb-2 and Sos, which result in the rapid activation of MAP kinase. These non-genomic effects of estradiol produce biologic effects as evidenced by Elk-1 activation and by morphologic changes in cell membranes. Additional effects include activation of the PI3-K and mTOR pathways through estradiol-induced binding of ERalpha to the IGF-I and epidermal growth factor receptors. A major question is how ERalpha locates in the plasma membrane since it does not contain an inherent membrane localization signal. We have provided evidence that the IGF-I receptor serves as an anchor for ERalpha in the plasma membrane. Estradiol causes phosphorylation of the adaptor protein, Shc and the IGF-I receptor itself. Shc, after binding to ERalpha, serves as the 'bus' which carries ERalpha to Shc-binding sites on the activated IGF-I receptors. Use of small inhibitor (si) RNA methodology to knockdown Shc allows the conclusion that Shc is needed for ERalpha to localize in the plasma membrane. In order to abrogate growth factor-induced hypersensitivity, we have utilized a drug, farnesylthiosalicylic acid, which blocks the binding of GTP-Ras to its membrane acceptor protein, galectin 1, and reduces the activation of MAP kinase. We have also shown that this drug is a potent inhibitor of mTOR as an additional mechanism of inhibition of cell proliferation. The concept of 'adaptive hypersensitivity' and the mechanisms responsible for this phenomenon have important clinical implications. The efficacy of aromatase inhibitors in patients relapsing on tamoxifen could be explained by this mechanism and inhibitors of growth factor pathways should reverse the hypersensitivity phenomenon and result in prolongation of the efficacy of hormonal therapy for breast cancer.
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Affiliation(s)
- R J Santen
- Department of Medicine, University of Virginia Health System, 450 Ray C Hunt Dr, Charlottesville, VA 22903, USA.
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Fan P, Yue W, Wang J. Long-term treatment with tamoxifen activates MAP kinase and mTOR pathway and enhances interaction between growth factor receptor and ERα in breast cancer cells. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- P. Fan
- Nanjing Medcl Univ, Nanjing, China; Univ of Virginia, Charlottesville, VA
| | - W. Yue
- Nanjing Medcl Univ, Nanjing, China; Univ of Virginia, Charlottesville, VA
| | - J. Wang
- Nanjing Medcl Univ, Nanjing, China; Univ of Virginia, Charlottesville, VA
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Santen RJ, Song RX, Zhang Z, Kumar R, Jeng MH, Masamura S, Lawrence J, MacMahon LP, Yue W, Berstein L. Adaptive hypersensitivity to estrogen: mechanisms and clinical relevance to aromatase inhibitor therapy in breast cancer treatment. J Steroid Biochem Mol Biol 2005; 95:155-65. [PMID: 16024245 DOI: 10.1016/j.jsbmb.2005.04.025] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [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] [Indexed: 11/30/2022]
Abstract
Breast tumors in women can adapt to endocrine deprivation therapy by developing hypersensitivity to estradiol. For this reason, aromatase inhibitors can be effective in women relapsing after treatment with tamoxifen or following oophorectomy. To understand the mechanisms responsible, we examined estrogenic stimulation of cell proliferation in a model system and provided in vitro and in vivo evidence that long-term estradiol deprivation (LTED) causes "adaptive hypersensitivity". The primary mechanisms responsible involve up-regulation of ER alpha as well as the MAP kinase, PI-3 kinase, and mTOR growth factor pathways. ER alpha is 4-10-fold up-regulated and co-opts a classical growth factor pathway using Shc, Grb2, and Sos. This induces rapid non-genomic effects which are enhanced in LTED cells. Estradiol binds to cell membrane associated ER alpha, physically associates with the adaptor protein Shc, and induces its phosphorylation. In turn, Shc binds Grb2 and Sos which result in the rapid activation of MAP kinase. These non-genomic effects of estradiol produce biologic effects as evidenced by Elk activation and by morphologic changes in cell membranes. Additional effects include activation of PI-3 kinase and mTOR pathways through estradiol induced binding of ER alpha to the IGF-1 and EGF receptors. Further proof of the non-genomic effects of estradiol involved use of "designer" cells which selectively express ER alpha in nucleus, cytosol, and cell membrane. We have used a new downstream inhibitor of these pathways, farnesyl-thio-salicylic acid (FTS), to block proliferation in hypersensitive cells as a model for a potentially effective strategy for treatment of patients.
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Affiliation(s)
- R J Santen
- Department of Medicine, University of Virginia Health System, P.O. Box 801416, Charlottesville, VA 22908, USA.
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Stambas J, Brown SA, Gutierrez A, Sealy R, Yue W, Jones B, Lockey TD, Zirkel A, Freiden P, Brown B, Surman S, Coleclough C, Slobod KS, Doherty PC, Hurwitz JL. Long lived multi-isotype anti-HIV antibody responses following a prime-double boost immunization strategy. Vaccine 2005; 23:2454-64. [PMID: 15752831 DOI: 10.1016/j.vaccine.2004.10.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2004] [Revised: 10/10/2004] [Accepted: 10/28/2004] [Indexed: 10/26/2022]
Abstract
Despite decades of work, an effective HIV vaccine remains elusive. In an effort to elicit protective immunity, investigators have sought to define vaccines able to elicit durable HIV-specific B-cell and T-cell activities. Additionally, vaccines are sought which can induce antibodies of a variety of isotypes, as each isotype possesses unique attributes in terms of opsonization, Fc receptor binding capacity, complement fixation and location. One prominent new vaccine strategy, applied to numerous distinct antigenic systems is the prime boost-regimen, with DNA, vaccinia virus (VV), and/or purified recombinant protein. To examine the durability, location and isotype distribution of responses induced by prime-boost regimens, we tested successive immunizations with DNA, VV and protein (D-V-P), comparing three forms of protein inoculations: (i) purified protein administered intramuscularly with complete Freunds adjuvant, (ii) purified protein administered intranasally, and (iii) purified protein conjugated to oxidized mannan, administered intranasally. We found that all three protocols elicited serum antibodies of multiple isotypes, with serum IgA being most prominent among mice immunized with mannan-conjugated protein. All D-V-P protocols, regardless of protein form or route, also elicited antibody responses at mucosal surfaces. In bronchoalveolar lavage, a tendency toward IgA production was again most prominent in mice boosted with the protein-mannan conjugate. Both B-cell and T-cell responses were sustained for more than 1 year post-immunization following each form of vaccination. Contemporaneous with long-lasting serum and mucosal antibodies were antibody forming cells in the bone marrow of primed animals. Results highlight the D-V-P vaccination strategy as a promising approach for attaining durable, multi-isotype B-cell and T-cell activities toward HIV.
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Affiliation(s)
- J Stambas
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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Jin YL, Yue W, Shi GX, Liu Y, Zhao FT, Zhu LP. Inhibition of 6A8 alpha-mannosidase gene expression resulted in telomere length shortening in nasopharyngeal carcinoma cell CNE-2L2. Cancer Lett 2005; 218:229-34. [PMID: 15670901 DOI: 10.1016/j.canlet.2004.04.020] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2003] [Revised: 03/06/2004] [Accepted: 04/16/2004] [Indexed: 11/22/2022]
Abstract
Telomere length shortening was observed in the nasopharyngeal carcinoma cell CNE-2L2 when 6A8 alpha-mannosidase expression was inhibited by antisense 6A8 DNA. Transduction with mock or an irrelevant DNA did not affect the telomere length in the carcinoma cells. Telomerase activity and mRNA transcription of TRF 1 and 2 were not changed in the cells treated with antisense 6A8. The Con A binding test showed an enhancement on the proteins isolated from the cells treated with antisense 6A8, but not on those from mock- or irrelevant DNA-treated cells. The data imply an association between glycosylation modification with telomere shortening in antisense 6A8-treated cells.
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Affiliation(s)
- Y L Jin
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
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Hu Y, Aiyar S, Yue W, Ghosh S, Lu Y, Li R. BRCA1 directly modulates gene expression required for estrogen biosynthesis: a possible mechanism of tissue-specific tumor suppression. Breast Cancer Res 2005. [PMCID: PMC4233536 DOI: 10.1186/bcr1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Y Hu
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - S Aiyar
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - W Yue
- Department of Medicine and Division of Endocrinology, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - S Ghosh
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Y Lu
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - R Li
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
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Yue W, Santen RJ, Wang JP, Li Y, Verderame MF, Bocchinfuso WP, Korach KS, Devanesan P, Todorovic R, Rogan EG, Cavalieri EL. Genotoxic metabolites of estradiol in breast: potential mechanism of estradiol induced carcinogenesis. J Steroid Biochem Mol Biol 2003; 86:477-86. [PMID: 14623547 DOI: 10.1016/s0960-0760(03)00377-7] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.5] [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] [Indexed: 02/07/2023]
Abstract
Long term exposure to estradiol increases the risk of breast cancer in a variety of animal species, as well as in women. The mechanisms responsible for this effect have not been firmly established. The prevailing theory proposes that estrogens increase the rate of cell proliferation by stimulating estrogen receptor-mediated transcription and thereby the number of errors occurring during DNA replication. An alternative hypothesis proposes that estradiol can be metabolized to quinone derivatives which can react with DNA and then remove bases from DNA through a process called depurination. Error prone DNA repair then results in point mutations. We postulate that these two processes, increased cell proliferation and genotoxic metabolite formation, act in an additive or synergistic fashion to induce cancer. If correct, aromatase inhibitors would block both processes whereas anti-estrogens would only inhibit receptor-mediated effects. Accordingly, aromatase inhibitors would be more effective in preventing breast cancer than use of anti-estrogens. Our studies initially demonstrated that catechol estrogen (CE) quinone metabolites are formed in MCF-7 human breast cancer cells in culture. Measurement of estrogen metabolites and conjugates involved utilization of an HPLC separation coupled with an electrochemical detector. We then utilized an animal model that allows dissociation of estrogen receptor-mediated function from that of the effects of estradiol metabolites. Wnt-1 transgenic mice harboring a knock-out of ERalpha provides a means of examining the effect of estrogen deprivation in the absence of the ER in animals with a high incidence of breast tumors. ERbeta was shown to be absent in the breast tissue of these animals by RNase protection assay. In the breast tissue of these estrogen receptor alpha knock-out (ERKO)/Wnt-1 transgenic mice, we demonstrated formation of genotoxic estradiol metabolites. The ERKO/Wnt-1 breast extracts contained picomole amounts of the 4-catechol estrogens, but not their methoxy conjugates nor the 2-CE or their methoxy conjugates. The 4-CE conjugates with glutathione or its hydrolytic products (cysteine and N-acetylcysteine) were detected in picomole amounts in both tumors and hyperplastic mammary tissue, demonstrating the formation of CE-3,4-quinones. These results are consistent with the hypothesis that mammary tumor development is primarily initiated by metabolism of estrogens to 4-CE and, then, to CE-3,4-quinones, which may react with DNA to induce oncogenic mutations. The next set of experiments examined the incidence of tumors formed in Wnt-1 transgenic mice bearing wild type ERalpha (ER+/+), the heterozygous combination of genes (ER+/ER-) or ERalpha knock-out (ER-/-). To assess the effect of estrogens in the absence of ER, half of the animals were oophorectomized on day 15 and the other half were sham operated. Castration reduced the incidence of breast tumors in all animal groups and demonstrated the dependence of tumor formation upon estrogens. A trend toward reduction in tumor number (not statistically significant at this interim analysis) occurred in the absence of functional ER since the number of tumors was markedly reduced in ERKO animals which were castrated early in life. In aggregate, our results support the concept that metabolites of estradiol may act in concert with ER mediated mechanisms to induce breast cancer.
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Affiliation(s)
- W Yue
- Department of Internal Medicine, University of Virginia Health Sciences System, PO Box 801416, Charlottesville, VA 22903, USA.
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Berstein LM, Zheng H, Yue W, Wang JP, Lykkesfeldt AE, Naftolin F, Harada H, Shanabrough M, Santen RJ. New approaches to the understanding of tamoxifen action and resistance. Endocr Relat Cancer 2003; 10:267-77. [PMID: 12790788 DOI: 10.1677/erc.0.0100267] [Citation(s) in RCA: 39] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Tamoxifen (TAM) provides an effective agent for treatment of hormone-dependent breast cancer but resistance uniformly ensues upon continued use. Additional studies are required to define more precisely the mechanisms involved in development of resistance. We conducted systematic experimental and clinical studies based on the hypothesis that tumors exposed to TAM long-term may develop resistance by becoming hypersensitive to its estrogenic effects. These investigations uncovered new features of the TAM resistance (TR) phenomenon and identified possible means for its prevention and/or elimination. Initially we confirmed that TR may be divided into two subtypes, primary and acquired resistance, and that these differ by certain important characteristics including the level of the possible involvement of adaptive and genetic components. Then we distinguished at least three consequent stages of this phenomenon: stage I when TAM behaves as an antiestrogen, stage II with development of increased sensitivity to the agonistic (pro-estrogenic) properties of TAM and stage III with an adaptive increase in sensitivity to estradiol (E(2)). During this evolutionary process, as shown in vitro, MAP kinase (MAPK) and aromatase activities increase. The time frame of the increase in MAPK activity as a rule outpaces the increase in aromatase activity during the course of the development of TR. This may occur as a response to estrogen deprivation or interruption of the process of estrogen signaling and can be one of the promoting factors of increased aromatase activation. On the other hand, the chronology of these events indicates that changes in the MAPK cascade can be more important for the early steps of the development and maintenance of the TR state. Changes in local estrogen production/sensitivity to E(2) are perhaps essential for the later steps of this phenomenon. We have explored the use of a growth factor-blocking agent to abrogate the adaptive changes in sensitivity. Farnesylthiosalicylic acid (FTS), an inhibitor of GTP-Ras binding to its membrane acceptor site, reduces the increase in the number of MCF-7 cells induced by long-term TAM treatment. It also decreases MAPK activity in TAM-treated MCF-7 cells and in established TR cell lines. Alone or in combination with letrozole (presumably, through the influence on MAPK pathway) FTS exerts moderate inhibitory effects on aromatase activity in estrogen-deprived or estrogen-exposed MCF-7 cells. Taken together, our observations suggest that FTS is a 'candidate drug' for the treatment of TR. Both the adaptive and genetic types of resistance may be amenable to this approach. Our studies underline the possible importance of starting the treatment/prevention of TR early on. From our clinical studies using immunohistochemistry, there is a rather strong rationale to include as a predisposing factor in the development of TR the increase in MAPK and aromatase activities in human primary breast tumors. In summary, data obtained during the course of this project may be considered as evidence supporting the principle that processes resulting in responses to TAM as an agonist and the development of estrogen hypersensitivity of breast cancer cells could potentially be mechanistically linked.
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Affiliation(s)
- L M Berstein
- Department of Medicine, Division of Endocrinology and Metabolism, University of Virginia, PO Box 801416, Charlottesville, VA 22908, USA
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Santen RJ, Song RX, Zhang Z, Kumar R, Jeng MH, Masamura S, Yue W, Berstein L. Adaptive hypersensitivity to estrogen: mechanism for superiority of aromatase inhibitors over selective estrogen receptor modulators for breast cancer treatment and prevention. Endocr Relat Cancer 2003; 10:111-30. [PMID: 12790774 DOI: 10.1677/erc.0.0100111] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [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] [Indexed: 11/27/2022]
Abstract
Clinical observations suggest that human breast tumors can adapt to endocrine therapy by developing hypersensitivity to estradiol (E(2)). To understand the mechanisms responsible, we examined estrogenic stimulation of cell proliferation in a model system and provided in vitro and in vivo evidence that long-term E(2) deprivation (LTED) causes "adaptive hypersensitivity". The enhanced responses to E(2) do not involve mechanisms acting at the level of transcription of estrogen-regulated genes. We found no evidence of hypersensitivity when examining the effects of E(2) on regulation of c-myc, pS2, progesterone receptor, several estrogen receptor (ER) reporter genes, or c-myb in hypersensitive cells. Estrogen deprivation of breast cells long-term does up-regulate both the MAP kinase and phosphatidyl-inositol 3-kinase pathways. As a potential explanation for up-regulation of these signaling pathways, we found that ERalpha is 4- to 10-fold up-regulated and co-opts a classic growth factor pathway using Shc, Grb-2 and Sos. This induces rapid non-genomic effects which are enhanced in LTED cells. E(2) binds to cell membrane-associated ERalpha, physically associates with the adapter protein SHC, and induces its phosphorylation. In turn, Shc binds Grb-2 and Sos, which results in the rapid activation of MAP kinase. These non-genomic effects of E(2) produce biological effects as evidenced by Elk activation and by morphological changes in cell membranes. Further proof of the non-genomic effects of E(2) involved use of cells which selectively expressed ERalpha in the nucleus, cytosol and cell membrane. We created these COS-1 "designer cells" by transfecting ERalpha lacking a nuclear localization signal and containing a membrane localizing signal. The concept of "adaptive hypersensitivity" and the mechanisms responsible for this phenomenon have important clinical implications. Adaptive hypersensitivity would explain the superiority of aromatase inhibitors over the selective ER modulators (SERMs) for treatment of breast cancer. The development of highly potent third-generation aromatase inhibitors allows reduction of breast tissue E2 to very low levels and circumvents the enhanced sensitivity of these cells to the proliferative effects of E(2). Clinical trials in the adjuvant, neoadjuvant and advanced disease settings demonstrate the greater clinical efficacy of the aromatase inhibitors over the SERMs. More recent observations indicate that the aromatase inhibitors are superior for the prevention of breast cancer as well. These observations may be explained by the hypothesis that estrogens induce breast cancer both by stimulating cell proliferation and by their metabolism to genotoxic products. The SERMs block ER-mediated proliferation only, whereas the aromatase inhibitors exert dual effects on proliferation and genotoxic metabolite formation.
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Affiliation(s)
- R J Santen
- Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA.
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Abstract
Beta-arrestins are a family of regulatory and scaffold proteins functioning in signal transduction of G protein-coupled receptors including opioid receptors. Upon agonist stimulation, beta-arrestins bind to opioid receptors phosphorylated by G protein-coupled receptor kinases and promote receptor internalization and desensitization. Studies indicated that beta-arrestins are required in the development of morphine tolerance in mice. In the current study, we investigated the potential regulatory effects of morphine administration on beta-arrestin 1 and beta-arrestin 2 mRNA levels in different brain regions in rat using in situ hybridization method. Our results showed that the acute morphine administration (10 mg/kg) resulted in approximately 30% reduction in both beta-arrestin 1 and beta-arrestin 2 mRNA levels in hippocampus while the chronic morphine treatment (10 mg/kg, b.i.d., for 9 days) caused no significant change in level of either beta-arrestin mRNA. In locus coeruleus, both acute and chronic morphine treatments resulted in significant decreases (over 50%) in beta-arrestin 1 mRNA level but failed to induce any change in the level of beta-arrestin 2 gene expression. The acute morphine administration had no significant effect on beta-arrestin 1 or beta-arrestin 2 mRNA level in periaqueductal gray and cerebral cortex. However, after chronic morphine treatment, beta-arrestin 2 mRNA level decreased by 40% in periaqueductal gray and increased by 25% in cerebral cortex, in strong contrast to the unchanged beta-arrestin 1 mRNA level in these two brain regions. Furthermore, spontaneous or naloxone-precipitated withdrawal of morphine that did not affect the level of beta-arrestin 1 mRNA resulted in an aberrant increase (100% over control) in beta-arrestin 2 mRNA level in hippocampus. Our results thus demonstrated for the first time that opiate administration regulates level of beta-arrestin mRNAs in brain and the expression of beta-arrestin 1 and beta-arrestin 2 subtypes is differentially regulated in locus coeruleus, periaqueductal gray, and cerebral cortex by morphine. These data suggest that beta-arrestin 1 and beta-arrestin 2 may play different roles in the development of opioid tolerance and dependence.
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Affiliation(s)
- X L Fan
- National Laboratory of Medical Neurobiology, Fudan University Medical Center, 138 Yi Xue Yuan Road, Shanghai 200032, People's Republic of China
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