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Zhao CYY, Zhang YS, Yang ZJ, Wang MQ, Xue WJ, Huo R, Zhao R. [Analysis of clinical data of necrotizing fasciitis secondary to intestinal fistulas and screening the mortality risk factors]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:141-150. [PMID: 38418175 DOI: 10.3760/cma.j.cn501225-20230923-00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Objective: To analyze the clinical data and to screen the mortality risk factors of necrotizing fasciitis (NF) secondary to intestinal fistulas (NFsIF). Methods: This study was a retrospective observational study. The data of all NFsIF cases who met the inclusion criteria and were admitted into Shandong Provincial Hospital Affiliated to Shandong First Medical University (hereinafter referred to as our unit) from January 2000 to October 2023, and in PubMed, Web of Science, Scopus, China National Knowledge Infrastructure, and Chinese Medical Journal Network databases from its establishment to October 2023 were retrieved and screened. Based on clinical outcomes, the cases were divided into survival group (47 males and 24 females) and death group (16 males and 7 females), and the mortality rate was calculated. Clinical data of patients in the two groups including age, underlying diseases (most related to NF), symptom duration before presentation, white blood cell count, causes of NF, signs of peritonitis, scope of NF involvement, and intestinal management and wound management measures were compared and analyzed to screen the risk factors of death in 94 patients with NFsIF. Results: A total of 94 valid cases were collected, including 90 patients reported in the literature and 4 patients admitted to our unit, with the mortality rate of patients being 24.5% (23/94). Univariate analysis showed that there were no statistically significant differences in age, underlying diseases, symptom duration before presentation, white blood cell count, causes of NF, signs of peritonitis, scope of NF involvement between patients in the two groups (P>0.05); there were statistically significant differences in intestinal treatment and wound treatment between the two groups (with χ2 values of 17.97 and 8.33, respectively, P<0.05). Multivariate logistic regression analysis showed that both intestinal treatment measures and wound treatments measures were independent risk factors for death in 94 NFsIF patients, among which first-stage colostomy+late-stage reconstruction and negative presssure therapy had higher protective effects (with odds ratios of 0.05 and 0.27, respectively, 95% confidence intervals of 0.01-0.33 and 0.08-0.88, respectively, P<0.05). Conclusions: The mortality risk of patients with NFsIF is high. Based on comprehensive treatments, active intestinal and wound treatment may be the key to avoid death, with first-stage colostomy+late-stage reconstruction and negative pressure therapy having higher protective effects.
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Affiliation(s)
- C Y Y Zhao
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y S Zhang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Z J Yang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - M Q Wang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - W J Xue
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - R Huo
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - R Zhao
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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Yang Y, Valdés-Rives SA, Liu Q, Li Y, Tan J, Tan Y, Koch CA, Rong Y, Houser SR, Wei S, Cai KQ, Cheng SY, Curran T, Wechsler-Reya R, Yang ZJ. Thyroid Hormone Suppresses Medulloblastoma Progression Through Promoting Terminal Differentiation of Tumor Cells. bioRxiv 2024:2024.02.13.580111. [PMID: 38405864 PMCID: PMC10888774 DOI: 10.1101/2024.02.13.580111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Hypothyroidism is commonly detected in patients with medulloblastoma (MB). A possible link between thyroid hormone (TH) signaling and MB pathogenicity has not been reported. Here, we find that TH plays a critical role in promoting tumor cell differentiation. Reduction in TH levels frees the TH receptor, TRα1, to bind to EZH2 and repress expression of NeuroD1, a transcription factor that drives tumor cell differentiation. Increased TH reverses EZH2-mediated repression of NeuroD1 by abrogating the binding of EZH2 and TRα1, thereby stimulating tumor cell differentiation and reducing MB growth. Importantly, TH-induced differentiation of tumor cells is not restricted by the molecular subgroup of MB. These findings establish an unprecedented association between TH signaling and MB pathogenicity, providing solid evidence for TH as a promising modality for MB treatment.
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Chen XH, Yang ZJ, Xu CJ, Chen YH, Huang HL, Li ZS, Lin T, Zhao ML, Chen T, Chen H, Liang YR, Zhu MS, Hu YF, Li GX, Yu J. [Application effect of the joint nasogastric tube for pairing overlap guiding tube (JNT) in esophagojejunostomy]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:986-989. [PMID: 37849270 DOI: 10.3760/cma.j.cn441530-20230105-00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
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Shen YQ, Yang ZC, Zhong WL, Jiang M, Shi ZB, Santos J, Shi PW, Tong RH, Xue GQ, Zhou Y, Wen J, Yu X, Deng WC, Wang S, Yang ZJ, Chen ZY, Li D, Zha XQ, Jin ZY, Xu X, Xu M. Plasma position measurements by O-mode and X-mode reflectometry systems in tokamak plasmas. Rev Sci Instrum 2023; 94:063505. [PMID: 37862534 DOI: 10.1063/5.0140390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 06/07/2023] [Indexed: 10/22/2023]
Abstract
Plasma Position Reflectometry (PPR) is planned to provide plasma position and shape information for plasma operation in future fusion reactors. Its primary function is to calibrate the drift of the magnetic signals due to the integral nature of magnetic measurement. Here, we attempt to measure plasma position using ordinary mode (O-mode) and extraordinary mode (X-mode) reflectometry systems on two tokamaks. A new physical model based on the phase shift is proposed to deduce the relative movement of the cut-off layer without density inversion. We demonstrate the plasma position measurements by absolute measurement from density profile inversion and relative measurement from phase shift. The combination of X-mode and O-mode reflectometers can minimize the limitations of single polarization reflectometry and further increase the accuracy of plasma position measurement. These results could provide an important technical basis for the further development of a real-time control system based on PPR.
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Affiliation(s)
- Y Q Shen
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z C Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W L Zhong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - M Jiang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - J Santos
- Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear-Laboratório Associado, Instituto Superior Técnico, 1049-001 Lisboa, Portugal
| | - P W Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - R H Tong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - G Q Xue
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
- Key Laboratory of Materials Modification by Beams of the Ministry of Education, School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Y Zhou
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - J Wen
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - X Yu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W C Deng
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - S Wang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Y Chen
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - D Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X Q Zha
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Y Jin
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X Xu
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - M Xu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Zhang J, Yang Y, Li X, Li G, Mizukami T, Liu Y, Wang Y, Xu G, Roder H, Zhang L, Yang ZJ. PDLIM3 supports hedgehog signaling in medulloblastoma by facilitating cilia formation. Cell Death Differ 2023; 30:1198-1210. [PMID: 36813922 PMCID: PMC10154305 DOI: 10.1038/s41418-023-01131-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 02/01/2023] [Accepted: 02/09/2023] [Indexed: 02/24/2023] Open
Abstract
Elevated levels of PDLIM3 expression are frequently detected in sonic hedgehog (SHH) group of medulloblastoma (MB). However, the possible role of PDLIM3 in MB tumorigenesis is still unknown. Here, we found that PDLIM3 expression is necessary for hedgehog (Hh) pathway activation in MB cells. PDLIM3 is present in primary cilia of MB cells and fibroblasts, and such cilia localization is mediated by the PDZ domain of PDLIM3 protein. Deletion of PDLIM3 significantly compromised cilia formation and interfered the Hh signaling transduction in MB cells, suggesting that PDLIM3 promotes the Hh signaling through supporting the ciliogenesis. PDLIM3 protein physically interacts with cholesterol, a critical molecule for cilia formation and hedgehog signaling. The disruption of cilia formation and Hh signaling in PDLIM3 null MB cells or fibroblasts, was significantly rescued by treatment with exogenous cholesterol, demonstrating that PDLIM3 facilitates the ciliogenesis through cholesterol provision. Finally, deletion of PDLIM3 in MB cells significantly inhibited their proliferation and repressed tumor growth, suggesting that PDLIM3 is necessary for MB tumorigenesis. Our studies elucidate the critical functions of PDLIM3 in the ciliogenesis and Hh signaling transduction in SHH-MB cells, supporting to utilize PDLIM3 as a molecular marker for defining SHH group of MB in clinics.
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Affiliation(s)
- Jie Zhang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yijun Yang
- Cell Signaling and Epigenetics Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
- Cancer Epigenetics Institute, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Xinhua Li
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Gen Li
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Takuya Mizukami
- Molecular Therapeutic Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Yanli Liu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yuan Wang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Guoqiang Xu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Heinrich Roder
- Molecular Therapeutic Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Li Zhang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China.
| | - Zeng-Jie Yang
- Cell Signaling and Epigenetics Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.
- Cancer Epigenetics Institute, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.
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Heller A, Du F, Liu Y, Yang Y, Yang ZJ. Generating a mouse model for relapsed Sonic Hedgehog medulloblastoma. STAR Protoc 2023; 4:102234. [PMID: 37074909 DOI: 10.1016/j.xpro.2023.102234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/06/2023] [Accepted: 03/22/2023] [Indexed: 04/20/2023] Open
Abstract
Tumor relapse is the leading adverse prognostic factor in medulloblastoma (MB). However, there is still no established mouse model for MB relapse, impeding our efforts to develop strategies to treat relapsed MB. We present a protocol for generating a mouse model for relapsed MB using irradiation by optimizing mouse breeding and age, as well as irradiation dosage and timing. We then detail procedures for determining tumor relapse based on tumor cell trans-differentiation in MB tissue, immunohistochemistry, and tumor cell isolation. For complete details on the use and execution of this protocol, please refer to Guo et al. (2021).1.
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Affiliation(s)
- Allie Heller
- Nuclear Dynamics and Cancer Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - Fang Du
- Nuclear Dynamics and Cancer Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - Yongqiang Liu
- Nuclear Dynamics and Cancer Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - Yijun Yang
- Nuclear Dynamics and Cancer Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA.
| | - Zeng-Jie Yang
- Nuclear Dynamics and Cancer Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA.
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Qian Y, Liu J, Wang L, Dong YQ, Chen H, Shen Q, Yang ZJ. [Identification of metabolic biomarkers associated with the onset of type 2 diabetes based on a nested case-control study]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1784-1788. [PMID: 36536566 DOI: 10.3760/cma.j.cn112150-20220315-00239] [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: 06/17/2023]
Abstract
Objective: To explore metabolic biomarkers associated with the onset of type 2 diabetes. Methods: Cluster random sampling method was used to select 10 867 local residents aged ≥ 20 years in Liangxi district of Wuxi City, Jiangsu Province in 2007. The baseline survey and physical examination were conducted to collect participants' information, including demographic characteristics, behavior and lifestyles, disease history, family history of diabetes, height, weight, waist circumference and blood pressure, etc. Blood samples were collected and biochemical indexes (high density lipoprotein cholesterol, total cholesterol, triglyceride, fasting blood glucose, etc.) were tested. By June 30, 2020, 220 newly diagnosed patients with type 2 diabetes during the follow-up were selected as cases, and 220 healthy individuals were matched as controls with age (±5 years) and the same sex. High performance liquid chromatography mass spectrometer was used to detect and identify metabolites in serum samples of two groups at baseline. Lasso regression and multivariate conditional logistic regression were used to explore the metabolites associated with the onset of type 2 diabetes. Results: The age of participants at baseline was (53±7) years, and 41.82% were male. 25 out of 1 579 metabolites were selected to be potentially associated with the onset of type 2 diabetes in the lasso regression model. The multivariable conditional logistic regression analysis showed that only 7-Methylxanthine had an independent effect on type 2 diabetes (P=0.019). The area under the receiver operating characteristic curve (AUC) (95%CI) of the prediction model of type 2 diabetes based on traditional risk factors was 0.80 (0.76-0.85). After the 7-methylxanthine in the model, the AUC (95%CI) increased to 0.92 (0.89-0.95) (P<0.001). From the second year, 7-methylxanthine could improve the prediction performance (P=0.007). Conclusion: The level of 7-methylxanthine is related to the onset of type 2 diabetes, and can be used as a biomarker to predict its incidence risk.
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Affiliation(s)
- Y Qian
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - J Liu
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - L Wang
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Y Q Dong
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - H Chen
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Q Shen
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Z J Yang
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
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Yang Y, Li L, Yang ZJ, Zheng MX, He WF, Yin R. [Effects of low-dose photodynamic therapy on the function of human adipose mesenchymal stem cells and its mechanism]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:830-838. [PMID: 36177587 DOI: 10.3760/cma.j.cn501225-20220325-00092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the effects of low-dose photodynamic therapy on the proliferation, regulation, and secretion functions of human adipose mesenchymal stem cells (ADSCs) and the related mechanism, so as to explore a new method for the repair of chronic wounds. Methods: The experimental research methods were adopted. From February to April 2021, 10 patients (5 males and 5 females, aged 23 to 47 years) who underwent cutaneous surgery in the Department of Dermatology of the First Affiliated Hospital of Army Medical University (the Third Military Medical University) donated postoperative waste adipose tissue. The cells were extracted from the adipose tissue and the phenotype was identified. Three batches of ADSCs were taken, with each batch of cells being divided into normal control group with conventional culture only, photosensitizer alone group with conventional culture after being treated with Hemoporfin, irradiation alone group with conventional culture after being treated with red light irradiation, and photosensitizer+irradiation group with conventional culture after being treated with Hemoporfin and red light irradiation, with sample number of 3 in each group. At culture hour of 24 after the treatment of the first and second batches of cells, the ADSC proliferation level was evaluated by 5-ethynyl-2'-deoxyuridine staining method and the migration percentage of HaCaT cells cocultured with ADSCs was detected by Transwell experiment, respectively. On culture day of 7 after the treatment of the third batch of cells, the extracellular matrix protein expression of ADSCs was detected by immunofluorescence method. The ADSCs were divided into 0 min post-photodynamic therapy group, 15 min post-photodynamic therapy group, 30 min post-photodynamic therapy group, and 60 min post-photodynamic therapy group, with 3 wells in each group. Western blotting was used to detect the protein expressions and calculate the phosphorylated mammalian target of rapamycin complex (p-mTOR)/mammalian target of rapamycin (mTOR), phosphorylated p70 ribosomal protein S6 kinase (p-p70 S6K)/p70 ribosomal protein S6 kinase (p70 S6K) ratio at the corresponding time points after photodynamic therapy. Two batches of ADSCs were taken, and each batch was divided into normal control group, photodynamic therapy alone group, and photodynamic therapy+rapamycin group, with 3 wells in each group. At culture minute of 15 after the treatment, p-mTOR/mTOR and p-p70 S6K/p70 S6K ratios of cells from the first batch were calculated and detected as before. On culture day of 7 after the treatment, extracellular matrix protein expression of cells from the second batch was detected as before. Data were statistically analyzed with one-way analysis of variance and least significant difference test. Results: After 12 d of culture, the cells were verified as ADSCs. At culture hour of 24 after the treatment, the ADSC proliferation level ((4.0±1.0)% and (4.1±0.4)%, respectively) and HaCaT cell migration percentages (1.17±0.14 and 1.13±0.12, respectively) in photosensitizer alone group and irradiation alone group were similar to those of normal control group ((3.7±0.6)% and 1.00±0.16, respectively, P>0.05), and were significantly lower than those of photosensitizer+irradiation group ((34.2±7.0)% and 2.55±0.13, respectively, P<0.01). On culture day of 7 after the treatment, compared with those in normal control group, the expression of collagen Ⅲ in ADSCs of photosensitizer alone group was significantly increased (P<0.05), and the expressions of collagen Ⅰ and collagen Ⅲ in ADSCs of irradiation alone group were significantly increased (P<0.01). Compared with those in photosensitizer alone group and irradiation alone group, the expressions of collagen Ⅰ, collagen Ⅲ, and fibronectin of ADSCs in photosensitizer+irradiation group were significantly increased (P<0.01). Compared with those in 0 min post-photodynamic therapy group, the ratios of p-mTOR/mTOR and p-p70 S6K/p70 S6K of ADSCs in 15 min post-photodynamic therapy group were significantly increased (P<0.01), the ratios of p-p70 S6K/p70 S6K of ADSCs in 30 min post-photodynamic therapy group and 60 min post-photodynamic therapy group were both significantly increased (P<0.01). At culture minute of 15 after the treatment, compared with those in normal control group, the ratios of p-mTOR/mTOR and p-p70 S6K/p70 S6K of ADSCs in photodynamic therapy alone group were significantly increased (P<0.05 or P<0.01). Compared with those in photodynamic therapy alone group, the ratios of p-mTOR/mTOR and p-p70 S6K/p70 S6K of ADSCs in photodynamic therapy+rapamycin group were significantly decreased (P<0.05). On culture day of 7 after the treatment, compared with those in normal control group, the expressions of collagen Ⅰ, collagen Ⅲ, and fibronectin of ADSCs in photodynamic therapy alone group were significantly increased (P<0.01). Compared with those in photodynamic therapy alone group, the expressions of collagen Ⅰ, collagen Ⅲ, and fibronectin of ADSCs in photodynamic therapy+rapamycin group were significantly decreased (P<0.01). Conclusions: Low-dose photodynamic therapy can promote the proliferation of ADSCs, improve the ability of ADSCs to regulate the migration of HaCaT cells, and enhance the secretion of extracellular matrix protein by rapidly activating mTOR signaling pathway.
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Affiliation(s)
- Y Yang
- Department of Dermatology, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - L Li
- Department of Dermatology, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - Z J Yang
- Department of Dermatology, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - M X Zheng
- Department of Dermatology, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - W F He
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing Key Laboratory for Wound Repair and Regeneration, Chongqing 400038, China
| | - R Yin
- Department of Dermatology, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
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Wang Q, Wu H, Hu J, Fu H, Qu Y, Yang Y, Cai KQ, Efimov A, Wu M, Yen T, Wang Y, Yang ZJ. Nestin Is Required for Spindle Assembly and Cell-Cycle Progression in Glioblastoma Cells. Mol Cancer Res 2021; 19:1651-1665. [PMID: 34158391 PMCID: PMC8492506 DOI: 10.1158/1541-7786.mcr-20-0994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 05/06/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022]
Abstract
Nestin, a class IV intermediate filament protein, is generally considered as a putative marker of neural stem and progenitor cells in the central nervous system. Glioma is a common type of adult brain tumors, and glioblastoma (GBM) represents the most aggressive form of glioma. Here, we report that Nestin expression is significantly upregulated in human GBM, compared with other types of glioma. Nestin knockdown or deletion in U251 cells and tumor cells from GBM patients derived xenografts resulted in G2-M arrest, finally leading to apoptosis in tumor cells. Using proximity-dependent biotin identification method, we identified βII-tubulin as an interacting protein of Nestin in U251 cells. Nestin stabilized βII-tubulin in U251 cells through physical interaction. Knockdown of Nestin or βII-tubulin disrupted spindle morphology in tumor cells. Our studies further revealed that Nestin deficiency in U251 cells and GBM PDX cells repressed tumor growth upon transplantation. Finally, we found that Nestin deficiency sensitized GBM cells to microtubule-destabilizing drugs such as vinblastine and vincristine. Our studies demonstrate the essential functions and underlying mechanisms of Nestin in the growth and drug response of GBM cells. IMPLICATIONS: Through interaction with βII-tubulin, Nestin facilitates cell-cycle progression and spindle assembly of tumor cells in glioblastoma.
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Affiliation(s)
- Qinglin Wang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Hao Wu
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Jian Hu
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Haijuan Fu
- Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yanghui Qu
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Yijun Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Kathy Q Cai
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Andrey Efimov
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Minghua Wu
- Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Tim Yen
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Yuan Wang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania.
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10
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Guo D, Wang Y, Cheng Y, Liao S, Hu J, Du F, Xu G, Liu Y, Cai KQ, Cheung M, Wainwright BJ, Lu QR, Zhao Y, Yang ZJ. Tumor cells generate astrocyte-like cells that contribute to SHH-driven medulloblastoma relapse. J Exp Med 2021; 218:212465. [PMID: 34254999 PMCID: PMC8282281 DOI: 10.1084/jem.20202350] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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] [Received: 11/05/2020] [Revised: 04/26/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022] Open
Abstract
Astrocytes, a major glial cell type in the brain, play a critical role in supporting the progression of medulloblastoma (MB), the most common malignant pediatric brain tumor. Through lineage tracing analyses and single-cell RNA sequencing, we demonstrate that astrocytes are predominantly derived from the transdifferentiation of tumor cells in relapsed MB (but not in primary MB), although MB cells are generally believed to be neuronal-lineage committed. Such transdifferentiation of MB cells relies on Sox9, a transcription factor critical for gliogenesis. Our studies further reveal that bone morphogenetic proteins (BMPs) stimulate the transdifferentiation of MB cells by inducing the phosphorylation of Sox9. Pharmacological inhibition of BMP signaling represses MB cell transdifferentiation into astrocytes and suppresses tumor relapse. Our studies establish the distinct cellular sources of astrocytes in primary and relapsed MB and provide an avenue to prevent and treat MB relapse by targeting tumor cell transdifferentiation.
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Affiliation(s)
- Duancheng Guo
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA.,Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yuan Wang
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yan Cheng
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Shengyou Liao
- Key Laboratory of Intelligent Information Processing, Advanced Computer Research Center, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
| | - Jian Hu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Fang Du
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Gang Xu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Yongqiang Liu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Kathy Q Cai
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
| | - Martin Cheung
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Brandon J Wainwright
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Q Richard Lu
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Yi Zhao
- Key Laboratory of Intelligent Information Processing, Advanced Computer Research Center, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA
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11
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Wen J, Shi ZB, Zhong WL, Yang ZC, Yang ZJ, Wang B, Jiang M, Shi PW, Hillesheim JC, Freethy SJ, Shi P, Liang AS, Tong RH, Fang KR, Deng WC, Liu Y, Yang QW, Ding XT, Xu M. A remote gain controlled and polarization angle tunable Doppler backward scattering reflectometer. Rev Sci Instrum 2021; 92:063513. [PMID: 34243534 DOI: 10.1063/5.0043676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 05/15/2021] [Indexed: 06/13/2023]
Abstract
Remote control of the diagnostic systems is the basic requirement for the high performance plasma operation in a fusion device. This work presents the development of the remote control system for the multichannel Doppler backward scattering (DBS) reflectometers. It includes a remote controlled quasi-optical system and a remote intermediate frequency (IF) amplifier gain control system. The quasi-optical system contains a rotational polarizer, its polarization angle is tunable through a remote controlled motor, and it could combine the microwave beams with a wide frequency range into one focused beam. The remote IF gain control system utilizes the digital microcontroller (MCU) technique to regulate the signal amplitude for each signal channel. The gain parameters of amplifiers are adjustable, and the feedback of working status in the IF system will be sent to MCU in real time for safe operation. The gain parameters could be controlled either by the Ethernet remote way or directly through the local control interface on the system. Preliminary experimental results show the effectiveness of the remote controlled multichannel DBS system.
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Affiliation(s)
- J Wen
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W L Zhong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z C Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z J Yang
- Huazhong University of Science and Technology, Wuhan 430074, China
| | - B Wang
- University of Electronic Science and Technology of China, Chengdu 610054, China
| | - M Jiang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - P W Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - J C Hillesheim
- Culham Centre for Fusion Energy, Abingdon, Oxon OX14 3DB, United Kingdom
| | - S J Freethy
- Culham Centre for Fusion Energy, Abingdon, Oxon OX14 3DB, United Kingdom
| | - P Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - A S Liang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - R H Tong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - K R Fang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W C Deng
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Y Liu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Q W Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - X T Ding
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - M Xu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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12
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Cheng Y, Liao S, Xu G, Hu J, Guo D, Du F, Contreras A, Cai KQ, Peri S, Wang Y, Corney DC, Noronha AM, Chau LQ, Zhou G, Wiest DL, Bellacosa A, Wechsler-Reya RJ, Zhao Y, Yang ZJ. NeuroD1 Dictates Tumor Cell Differentiation in Medulloblastoma. Cell Rep 2021; 31:107782. [PMID: 32579914 PMCID: PMC7357167 DOI: 10.1016/j.celrep.2020.107782] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 04/01/2020] [Accepted: 05/27/2020] [Indexed: 01/10/2023] Open
Abstract
Tumor cells are characterized by unlimited proliferation and perturbed differentiation. Using single-cell RNA sequencing, we demonstrate that tumor cells in medulloblastoma (MB) retain their capacity to differentiate in a similar way as their normal originating cells, cerebellar granule neuron precursors. Once they differentiate, MB cells permanently lose their proliferative capacity and tumorigenic potential. Differentiated MB cells highly express NeuroD1, a helix-loop-helix transcription factor, and forced expression of NeuroD1 promotes the differentiation of MB cells. The expression of NeuroD1 in bulk MB cells is repressed by trimethylation of histone 3 lysine-27 (H3K27me3). Inhibition of the histone lysine methyltransferase EZH2 prevents H3K27 trimethylation, resulting in increased NeuroD1 expression and enhanced differentiation in MB cells, which consequently reduces tumor growth. These studies reveal the mechanisms underlying MB cell differentiation and provide rationales to treat MB (potentially other malignancies) by stimulating tumor cell differentiation. Cheng et al. demonstrate that medulloblastoma cells retain the capacity to undergo differentiation. The differentiation of tumor cells is regulated by NeuroD1 expression, which is repressed by H3K27me3 in tumor cells. EZH2 inhibitors suppress medulloblastoma growth by stimulating tumor cell differentiation.
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Affiliation(s)
- Yan Cheng
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA; Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Shengyou Liao
- Bioinformatics Research Group, Chinese Academy of Sciences, Beijing, China
| | - Gang Xu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Jian Hu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA; Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Duancheng Guo
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Fang Du
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Alejandra Contreras
- Blood Cell Development and Function, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Kathy Q Cai
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Suraj Peri
- Biostatistics and Bioinformatics Research Facility, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Yuan Wang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - David C Corney
- Genomics and Molecular Genetics, GENEWIZ Co., South Plainfield, NJ, USA
| | | | - Lianne Q Chau
- Tumor Initiation& Maintenance Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ginger Zhou
- Genomics and Molecular Genetics, GENEWIZ Co., South Plainfield, NJ, USA
| | - David L Wiest
- Blood Cell Development and Function, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Alfonso Bellacosa
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Robert J Wechsler-Reya
- Tumor Initiation& Maintenance Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yi Zhao
- Bioinformatics Research Group, Chinese Academy of Sciences, Beijing, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.
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13
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Wang J, Yang ZJ, Wang YD, Cao YP, Wang B, Liu Y. The key aroma compounds and sensory characteristics of commercial Cheddar cheeses. J Dairy Sci 2021; 104:7555-7571. [PMID: 33814151 DOI: 10.3168/jds.2020-19992] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/17/2021] [Indexed: 11/19/2022]
Abstract
To study the key aroma components and flavor profile differences of Cheddar cheese with different maturity and from different countries, the flavor components of 25 imported commercial Cheddar cheese samples in the China market were determined by gas chromatography-mass spectrometry. The quality and quantity of 40 flavor compounds were analyzed by gas chromatography-olfactometry among 71 aroma compounds determined by gas chromatography-mass spectrometry. Combined with odor activity value calculation, principal component analysis (PCA) was conducted to analyze the relationship among 26 flavor compounds with odor activity values >1 and the maturity of Cheddar cheese. The PCA results showed significant differences between the group of mild Cheddar cheese and the groups of medium Cheddar cheese and mature Cheddar cheese, and no significant differences were observed between medium Cheddar cheese and mature Cheddar cheese. According to the results of PCA and consumers' preference test, representative Cheddar cheese samples with different ripening times were selected for the flavor profile analysis. Partial least squares regression analysis was conducted to obtain the relationship between sensory properties and flavor compounds of different Cheddar cheeses. Based on partial least squares regression analysis, 1-octen-3-one, hexanal, acetic acid, 3-methylindole, and acetoin were positively correlated with milky, sour, and yogurt of mild Cheddar cheese. Dimethyl trisulfide, phenylacetaldehyde, ethyl caproate, octanoic acid, and furaneol and other compounds were positively correlated with fruity, caramel, rancid, and nutty notes of the medium and mature Cheddar cheeses.
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Affiliation(s)
- J Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Z J Yang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Y D Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Y P Cao
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - B Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China.
| | - Y Liu
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
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14
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Li F, Yang ZJ, Gao L, Fu CP. Development of the gas puffing imaging diagnostic on J-TEXT tokamak. Rev Sci Instrum 2021; 92:043503. [PMID: 34243373 DOI: 10.1063/5.0040988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 03/11/2021] [Indexed: 06/13/2023]
Abstract
Edge turbulence is important for plasma confinement, so the gas puffing imaging (GPI) diagnostic was proposed on the J-TEXT tokamak for the two-dimensional measurement of turbulence in the edge region. GPI is a diagnostic of plasma turbulence that uses a puff of neutral gas at the plasma edge to increase the local visible light emission for improved space-time resolution of plasma fluctuations. Considering the conditions of J-TEXT, the observation area is 21° away from the position of the optical system in the toroidal direction, and the observation area is 10 cm × 10 cm inside and outside the last closed flux surface. To have a lower divergence of the gas flow, the gas puff nozzle is specially designed. An interface has been developed for operation. To photograph the line radiation generated by the neutral gas cloud along the magnetic field lines, the optical system is designed. It is composed of a quartz glass, mirrors, commercial lenses, filters, and high-speed cameras. The high-speed camera can capture the line radiation with a speed up to 180 000 frames/s with 256 pixels × 256 pixels and an exposure time of 5 µs. In a recent experiment, the new GPI diagnostic has obtained some preliminary pictures.
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Affiliation(s)
- F Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - L Gao
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - C P Fu
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
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15
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Yang Y, Qu Y, Cheng Y, Guo D, Fan Q, Yang ZJ. Purification of differentiated tumor cells from medulloblastoma for transplantation into mouse cerebellum. STAR Protoc 2021; 2:100409. [PMID: 33870218 PMCID: PMC8039855 DOI: 10.1016/j.xpro.2021.100409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This protocol provides the procedures for isolating differentiated tumor cells from medulloblastoma (MB) in mice. Procedures for transplantation into cerebella are also included to examine the tumorigenesis of differentiated MB cells. This protocol outlines the detailed steps required for (1) isolation of tumor cells from mouse MB, (2) purification of differentiated tumor cells by fluorescence-activated cell sorting, and (3) transplantation of tumor cells into cerebella. This protocol is useful to purify differentiated tumor cells for investigating mechanisms underlying MB progression. For complete details on the use and execution of this protocol, please refer to Cheng et. al. (2020). Procedures for isolating tumor cells from mouse medulloblastoma Purification of differentiated medulloblastoma cells by FACS Technical details for injecting live tumor cells into mouse cerebella
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Affiliation(s)
- Yijun Yang
- Cancer biology program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Yanghui Qu
- Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Yan Cheng
- Cancer biology program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Duancheng Guo
- Cancer biology program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.,Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Qianhai Fan
- Cancer biology program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.,Pediatric Cancer Center, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Zeng-Jie Yang
- Cancer biology program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
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16
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Wang L, Chen H, Qian Y, Dong YQ, Guo LL, Yang ZJ, Shen Q. [Probability of premature mortality caused by four major non-communicable diseases and its impact on life expectancy in Wuxi, 2008-2018]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:291-296. [PMID: 33626618 DOI: 10.3760/cma.j.cn112338-20200403-00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the trend of premature death of non-communicable diseases (NCDs) in Wuxi from 2008 to 2018 and evaluate the influence of premature mortality probability caused by four main NCDs on life expectancy. Methods: Based on the mortality data collected by Wuxi Mortality Registration System and the population data collected by Wuxi Public Security Bureau during 2008-2018, this study analyzes the trend of the probability of premature death on malignant tumors, cardiovascular and cerebrovascular diseases, chronic respiratory diseases, and diabetes. The impact on life expectancy was analyzed by using the methods of abridged life table, Joinpoint regression, and life expectancy contribution decomposition. Results: From 2008 to 2018, the total probability of premature death of four main NCDs in Wuxi were declined consistently from 11.25% to 9.25% (AAPC = -2.0%, 95%CI: -2.6--1.5), higher in female (from 7.74% to 5.91%) than that in male (from 14.49% to 12.51%). The Wuxi resident's life expectancy increased by 1.86 years (from 78.66 to 80.52 years), in males and 1.26 years (from 83.85 to 85.11 years) in females, respectively. The decline of premature death of malignant tumors, cardiovascular and cerebrovascular diseases and chronic respiratory system diseases had a positive contribution to life expectancy, which contributed 0.34 years (23.90%), 0.15 years (10.50%), and 0.03 years (2.36%) to the life expectancy growth, respectively. Among which, premature death of cardiovascular and cerebrovascular diseases in men aged 40-55y had a negative contribution to life expectancy (-0.04 years). The probability of premature death of males with diabetes was on the rise (AAPC = 7.1%, 95%CI: 2.8-11.6), which negatively contributed to life expectancy for both males and females, reducing life expectancy by 0.03 years (-2.14%) in Wuxi. Conclusion: The premature death probability of four main NCDs in Wuxi declined consistently from 2008 to 2018, which played a positive role in the growth of life expectancy. Compared with females, males had a higher premature death probability and a slower rate of decline. More intervention and health management of premature male death on cardiovascular and cerebrovascular diseases and diabetes should be conducted to improve life expectancy further.
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Affiliation(s)
- L Wang
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - H Chen
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Y Qian
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Y Q Dong
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - L L Guo
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Z J Yang
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Q Shen
- Department of Health Promotion, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
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17
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Ren XH, Yang ZJ, Shi ZB, Yang ZC, Zha XQ, Gao Y, Zhang ZC. Development of a tunable multi-channel Doppler reflectometer on J-TEXT tokamak. Rev Sci Instrum 2021; 92:033545. [PMID: 33820104 DOI: 10.1063/5.0040915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Doppler reflectometer is a powerful diagnostic tool to study the turbulence for tokamak plasmas. It can provide information on the density fluctuation, the poloidal rotation, the radial electric field, its shear, etc. A tunable multi-channel V-band (50-75 GHz) Doppler reflectometer system has been developed on the J-TEXT tokamak for the measurement under various toroidal magnetic fields. A universal serial bus controlled synthesizer is used as a source that can adjust the probing frequency remotely. This Doppler reflectometer can measure the plasma in 0.3 < ρ < 1 . Its radial resolution is <2 cm, and k⊥ is ∼ 4-12 cm-1. Based on the Doppler reflectometer, the perpendicular turbulence propagation velocity, the profile of the radial electric field, the geodesic acoustic mode, and some other phenomena have been observed on J-TEXT.
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Affiliation(s)
- X H Ren
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z B Shi
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Z C Yang
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - X Q Zha
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Gao
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z C Zhang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSouthwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
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18
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Yang ZJ, Gong QT, Yu Y, Lu WF, Wu ZN, Wang N, Yu XQ. Fast and high-efficiency synthesis of 2-substituted benzothiazoles via combining enzyme catalysis and photoredox catalysis in one-pot. Bioorg Chem 2020; 107:104607. [PMID: 33450543 DOI: 10.1016/j.bioorg.2020.104607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 01/28/2023]
Abstract
An efficient and green method, combining enzymatic and visible-light catalysis for synthesis of the widely applicable 2-substituted benzothiazoles, has been developed. This method features a relay catalysis protocol consisting of biocatalytic promiscuity and visible-light-induced subsequent oxidization of 2-phenyl benzothiazolines. The whole reaction process is very high-efficiency, achieving 99% yield in just 10 min, under an air atmosphere, nearly 100% atomic utilization, and the 2-substituted benzothiazole products were obtained in good to excellent yields with a wide range of substrates. This reaction is the other example of combining the non-natural catalytic activity of hydrolases with visible-light catalysis for organic synthesis and the catalytic system does not require additional oxidants or metals, which is good for the environment.
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Affiliation(s)
- Zeng-Jie Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Qing-Tian Gong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Yuan Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Wei-Fan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Zhe-Ning Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Na Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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19
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Yu Y, Zhang W, Gong QT, Liu YH, Yang ZJ, He WX, Wang N, Yu XQ. Enzyme-catalysed one-pot synthesis of 4H-pyrimido[2,1-b] benzothiazoles and their application in subcellular imaging. J Biotechnol 2020; 324:91-98. [PMID: 33010308 DOI: 10.1016/j.jbiotec.2020.09.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 10/23/2022]
Abstract
Enzymes, which provide more efficient and eco-friendly strategies for various functional molecules' construction than traditional chemo-catalysts, were utilized for the synthesis of 4H-pyrimido[2,1-b] benzothiazole derivatives. Reported herein is a trypsin-catalysed three- component Biginelli reaction of aldehyde, β-ketoester and 2-amino benzothiazole in one pot, affording a streamlined pathway to diverse ring-fused pyrimidines. In addition to using commercially available aromatic aldehydes as substrates, acetaldehyde, the chemical liquid with rather low boiling point and difficult to handle above room temperature, is utilized to further extend the range of substrates. It was verified that most of the tested substrates exhibited satisfactory reactivity. In addition, several substrates indicated AIE (Aggregation-Induced Emission) property and have been investigated as potential biomarkers.
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Affiliation(s)
- Yuan Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Wei Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Qing-Tian Gong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Zeng-Jie Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Wei-Xun He
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Na Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, PR China.
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Yu Y, Lu WF, Yang ZJ, Wang N, Yu XQ. Combining photo-redox and enzyme catalysis for the synthesis of 4H-pyrimido[2,1-b] benzothiazole derivatives in one pot. Bioorg Chem 2020; 107:104534. [PMID: 33339664 DOI: 10.1016/j.bioorg.2020.104534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/25/2020] [Accepted: 12/03/2020] [Indexed: 10/22/2022]
Abstract
A novel strategy combining visible-light and enzyme catalysis in one pot for the synthesis of 4H-pyrimido[2,1-b] benzothiazole derivatives from alcohols is described for the first time. Fourteen 4H-pyrimido[2,1-b] benzothiazole derivatives were prepared with yields of up to 98% under mild reaction conditions by a simple operation. The photoorgano catalyst rose Bengal (rB) was employed to oxyfunctionalise alcohols to aldehydes. Compared with aldehydes, alcohols with more stable properties and lower cost, thus we used photocatalysis to oxidize alcohols into aldehydes. Next, the enzyme was used to further catalyze the reaction of Biginelli to produce the target product of 4H-pyrimidine [2,1-b] benzothiazole. Experimental results show that this method provides a more efficient and eco-friendly strategy for the synthesis of 4H-pyrimido[2,1-b] benzothiazole derivatives.
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Affiliation(s)
- Yuan Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Wei-Fan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Zeng-Jie Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Na Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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21
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Liu L, Yang ZJ, Delwiche K, Long LH, Liu J, Liu DF, Wang CF, Bodmer P, Lorke A. Spatial and temporal variability of methane emissions from cascading reservoirs in the Upper Mekong River. Water Res 2020; 186:116319. [PMID: 32846383 DOI: 10.1016/j.watres.2020.116319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/08/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Reservoirs are an important source of atmospheric methane (CH4), a potent greenhouse gas. The Mekong, one of the largest Asian rivers, has been heavily dammed and can be a potential hotspot for CH4 emissions. While low diffusive CH4 flux was previously reported from cascading reservoirs in the Upper Mekong, the contribution of ebullition (bubbling) remained unexplored. To better constrain the magnitude and drivers of ebullition from these reservoirs, automated bubble traps were deployed in four reservoirs, allowing for continuous measurement of the ebullitive flux with high temporal resolution for a period of six months. To characterize the spatial variability of CH4 fluxes mediated by ebullition and diffusion, whole-reservoir surveys were conducted using a scientific echo sounder for bubble observations together with a gas equilibrator for mapping dissolved CH4 concentration in surface water from which diffusive fluxes were estimated. Potential production and anaerobic oxidation rates of CH4 were estimated in laboratory incubations of sediment cores collected near the bubble trap deployment sites. The CH4 production potential in sediments increased strongly along the reservoir cascade, with mostly minor reduction by anaerobic oxidation. Surface CH4 fluxes, in contrast, showed high spatial variability in both ebullitive and diffusive pathways (ranging 0.05-44 and 1.8-6.4 mg m-2 d-1, respectively, among all reservoirs). Ebullitive fluxes were about one order of magnitude higher than diffusive fluxes and remained significant at sites as deep as 30-45 m. The repeated spatial pattern of ebullition (higher fluxes at the dam area than in upstream sections) suggests the possible control of emission rates by sediment transport and deposition.
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Affiliation(s)
- L Liu
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany.
| | - Z J Yang
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China.
| | - K Delwiche
- Department of Earth System Science, Stanford University, Stanford, United States
| | - L H Long
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - J Liu
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
| | - D F Liu
- College of Resources & Environment Sciences, Hubei University of Technology, Wuhan, China
| | - C F Wang
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
| | - P Bodmer
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; Groupe de Recherche Interuniversitaire en Limnologie, Département des Sciences Biologiques, Université du Québec à Montréal, Canada
| | - A Lorke
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
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22
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Guo D, Qu Y, Yang Y, Yang ZJ. Medulloblastoma cells resemble neuronal progenitors in their differentiation. Mol Cell Oncol 2020; 7:1810514. [PMID: 33235914 PMCID: PMC7671073 DOI: 10.1080/23723556.2020.1810514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Medulloblastoma (MB) often originate from cerebellar granule neuron precursors (GNPs). We recently found that medulloblastoma cells undergo differentiation as GNPs. Differentiated MB cells have permanently lost their proliferative capacity and tumorigenicity. The differentiation of MB cells is driven by the transcription factor NeuroD1 (Neurogenic differentiation 1), and NeuroD1 expression in MB cells is repressed by EZH2-mediated H3K27me3.
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Affiliation(s)
- Duancheng Guo
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.,College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yanghui Qu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yijun Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA
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Yu Y, Gong QT, Lu WF, Liu YH, Yang ZJ, Wang N, Yu XQ. Aggregation-Induced Emission Probes for Specific Turn-On Quantification of Bovine Serum Albumin. ACS Appl Bio Mater 2020; 3:5193-5201. [PMID: 35021694 DOI: 10.1021/acsabm.0c00589] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of aggregation-induced emission (AIE) fluorescence probes, coined 4H-pyrimido[2,1-b]benzothiazole derivatives, has been synthesized by Biginelli reactions. Utilizing spectroscopic techniques, their photophysical properties have been comprehensively investigated in working environment both in vitro and in vivo. Density functional theory (DFT) calculations were performed to better understand the mechanism of these probes. The interactions between 4H-pyrimido[2,1-b]benzothiazoles with different substituents and bovine serum albumin (BSA) were analyzed using UV-vis and fluorescence spectroscopy, synchronous fluorescence, and docking analysis. Studies found that 4H-pyrimido[2,1-b]benzothiazole could bind to bovine serum albumin (BSA) through a hydrogen bond and hydrophobic interactions, resulting in enhancement of fluorescence emission of probes 1a-6f and fluorescence quenching of BSA. Combined with cell imaging experiments, these provide information on potential effects of benzothiazoles on disease treatment.
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Affiliation(s)
- Yuan Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qing-Tian Gong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Wei-Fan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Zeng-Jie Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Na Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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Yang ZJ, Gong QT, Wang Y, Yu Y, Liu YH, Wang N, Yu XQ. Biocatalytic tandem multicomponent reactions for one-pot synthesis of 2-Amino-4H-Pyran library and in vitro biological evaluation. Molecular Catalysis 2020. [DOI: 10.1016/j.mcat.2020.110983] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Yang ZJ, Wang N, He WX, Yu Y, Gong QT, Yu XQ. Lipase-Catalyzed Highly Efficient 1,6-Conjugated Addition for Synthesis of Triarylmethanes. Catal Letters 2019. [DOI: 10.1007/s10562-019-03043-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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26
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You W, Yang ZJ, Ye F. [Value of index of microcirculatory resistance for early prediction of periprocedural myocardial microcirculatory injury after percutaneous coronary intervention in patients with coronary heart disease]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:894-900. [PMID: 31744279 DOI: 10.3760/cma.j.issn.0253-3758.2019.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the value of index of microcirculatory resistance (IMR) for early prediction of periprocedural myocardial injury (PMI) in patients with stable angina pectoris (SAP) and acute coronary syndrome (ACS) after PCI. Methods: It was a prospective study. One hundred and sixty-four patients who had single coronary lesion were consecutively enrolled from May 2014 to December 2017 at Nanjing Hospital affiliated to Nanjing Medical University. According to clinical manifestation, patients were divided into SAP group (n=81) and ACS group (n=83). IMR was determined by thermal dilution with pressure guide wire. Basic clinical characteristics, coronary angiographic results, PCI procedural details, IMR after PCI, ΔIMR (IMR=post-PCI-IMR pre-PCI), levels of myocardial biomarkers before and after PCI were compared between the two groups. Multivariate logistic regression was used to analyze the relation of PMI with IMR and ΔIMR, and the predictive ability was evaluated by receiver operating characteristic (ROC). Results: The levels of total cholesterol and low density lipoprotein cholesterol were significantly higher in ACS group than in SAP group (P<0.05), other clinical data at baseline were similar between the two groups (P>0.05). Quantitative coronary angiography (QCA) results and PCI related data were also similar between the two groups before PCI (P>0.05). Values of mean transit time (Tmn) of intracoronary injection with room temperature saline, post-PCI IMR and ΔIMR were significantly higher in ACS group than in SAP group after PCI (P<0.05). Plasma creatine kinase isoenzyme-MB difference (ΔCK-MB) (ΔCK-MB=CK-MB post-PCI-CK-MB pre-PCI) and cardiac troponin-I (cTnI) difference (ΔcTnI=cTnI post-PCI-cTnI pre-PCI) were significantly larger in ACS group than in SAP group (P<0.05). Multivariate logistic regression analysis showed that coronary artery disease (CHD) type (SAP and ACS) (OR=1.301, 95%CI 1.083-1.562), age (OR=1.007, 95%CI 1.000-1.013), ΔIMR (OR=1.009, 95%CI 1.000-1.017) and post-PCI IMR (OR=1.008, 95%CI 1.001-1.014) were independent predictors of PMI (P<0.05). The area under the ROC curve (AUC) of ΔIMR was 0.763 to predict PMI (P<0.05), the optimum cut-off value of ΔIMR was 5.485 with 70.0% sensitivity and 77.4% specificity. ΔIMR was positively correlated with ΔcTnI (r=0.592, P<0.05). Conclusions: ΔIMR serves as an early predictor of PMI in CHD patients after PCI. As compared with SAP patients, ACS patients are more likely to develop PMI.
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Affiliation(s)
- W You
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, 210029
| | - Z J Yang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, 210029
| | - F Ye
- Department of Cardiology, Nanjing First Hospital, Nanjing Hospital Affiliated Nanjing Medical University, Nanjing 210006, China
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27
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Zhang L, He X, Liu X, Zhang F, Huang LF, Potter AS, Xu L, Zhou W, Zheng T, Luo Z, Berry KP, Pribnow A, Smith SM, Fuller C, Jones BV, Fouladi M, Drissi R, Yang ZJ, Gustafson WC, Remke M, Pomeroy SL, Girard EJ, Olson JM, Morrissy AS, Vladoiu MC, Zhang J, Tian W, Xin M, Taylor MD, Potter SS, Roussel MF, Weiss WA, Lu QR. Single-Cell Transcriptomics in Medulloblastoma Reveals Tumor-Initiating Progenitors and Oncogenic Cascades during Tumorigenesis and Relapse. Cancer Cell 2019; 36:302-318.e7. [PMID: 31474569 PMCID: PMC6760242 DOI: 10.1016/j.ccell.2019.07.009] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/16/2019] [Accepted: 07/29/2019] [Indexed: 02/05/2023]
Abstract
Progenitor heterogeneity and identities underlying tumor initiation and relapse in medulloblastomas remain elusive. Utilizing single-cell transcriptomic analysis, we demonstrated a developmental hierarchy of progenitor pools in Sonic Hedgehog (SHH) medulloblastomas, and identified OLIG2-expressing glial progenitors as transit-amplifying cells at the tumorigenic onset. Although OLIG2+ progenitors become quiescent stem-like cells in full-blown tumors, they are highly enriched in therapy-resistant and recurrent medulloblastomas. Depletion of mitotic Olig2+ progenitors or Olig2 ablation impeded tumor initiation. Genomic profiling revealed that OLIG2 modulates chromatin landscapes and activates oncogenic networks including HIPPO-YAP/TAZ and AURORA-A/MYCN pathways. Co-targeting these oncogenic pathways induced tumor growth arrest. Together, our results indicate that glial lineage-associated OLIG2+ progenitors are tumor-initiating cells during medulloblastoma tumorigenesis and relapse, suggesting OLIG2-driven oncogenic networks as potential therapeutic targets.
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Affiliation(s)
- Liguo Zhang
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Xuelian He
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Boston Children's Hospital, Department of Neurology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
| | - Xuezhao Liu
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Feng Zhang
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biostatistics and Computational Biology, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - L Frank Huang
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Andrew S Potter
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Lingli Xu
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Wenhao Zhou
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Tao Zheng
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zaili Luo
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kalen P Berry
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Allison Pribnow
- Tumor Cell Biology Division, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Stephanie M Smith
- Tumor Cell Biology Division, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Christine Fuller
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Blaise V Jones
- Radiology Division, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Maryam Fouladi
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Rachid Drissi
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - W Clay Gustafson
- Department of Neurology, Pediatrics, and Surgery and Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA
| | - Marc Remke
- Department of Pediatric Oncology, Hematology, and Clinical Immunology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Scott L Pomeroy
- Boston Children's Hospital, Department of Neurology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Emily J Girard
- Division of Pediatric Hematology/Oncology, Fred Hutchinson Cancer Research Center, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA 98145-5005, USA
| | - James M Olson
- Division of Pediatric Hematology/Oncology, Fred Hutchinson Cancer Research Center, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA 98145-5005, USA
| | - A Sorana Morrissy
- Department of Biochemistry and Molecular Biology, The University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Maria C Vladoiu
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Jiao Zhang
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Weidong Tian
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biostatistics and Computational Biology, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Mei Xin
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Michael D Taylor
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - S Steven Potter
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Martine F Roussel
- Tumor Cell Biology Division, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - William A Weiss
- Department of Neurology, Pediatrics, and Surgery and Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA
| | - Q Richard Lu
- Experimental Hematology and Cancer Biology, Brain Tumor Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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Yang ZJ, Wang YB, Xue WJ, Huo R. [Summary of the 2019 Academic Annual Meeting of the Society of Burn Surgery of Chinese Medical Doctor Association]. Zhonghua Shao Shang Za Zhi 2019; 35:559-560. [PMID: 31357832 DOI: 10.3760/cma.j.issn.1009-2587.2019.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The 2019 Academic Annual Meeting of the Society of Burn Surgery of Chinese Medical Doctor Association, sponsored by the Chinese Medical Doctor Association, was successfully held in Jinan, Shandong Province from May 22th to 24th. More than 300 representatives of burn department attended the meeting. With the theme of " Standardization and Innovation" , the conference focused on academician lectures and invited reports, thematic reports, thematic discussions, and discussion of difficult and complex cases in view of the current situation and challenges of burn specialty in China, and closely combined with the actual clinical needs. In order to reserve the reserve force, the Youth Committee of the Society of Burn Surgery of Chinese Medical Doctor Association was established.
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Affiliation(s)
- Z J Yang
- Department of Burns and Plastic Surgery, Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Y B Wang
- The First Affiliated Hospital, Shandong First Medical University, Jinan 250014, China
| | - W J Xue
- Department of Burns and Plastic Surgery, Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - R Huo
- Department of Burns and Plastic Surgery, Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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Du F, Yuelling L, Lee EH, Wang Y, Liao S, Cheng Y, Zhang L, Zheng C, Peri S, Cai KQ, Ng JMY, Curran T, Li P, Yang ZJ. Leukotriene Synthesis Is Critical for Medulloblastoma Progression. Clin Cancer Res 2019; 25:6475-6486. [PMID: 31300449 DOI: 10.1158/1078-0432.ccr-18-3549] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 04/18/2019] [Accepted: 07/02/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE Here, we examined the role of leukotrienes, well-known inflammatory mediators, in the tumorigenesis of hedgehog pathway-associated medulloblastoma, and tested the efficacies of antagonists of leukotriene biosynthesis in medulloblastoma treatment.Experimental Design: We examined the leukotriene levels in medulloblastoma cells by ELISA. We next tested whether leukotriene synthesis in medulloblastoma cells relied on activation of hedgehog pathway, or the presence of hedgehog ligand secreted by astrocytes. We then investigated whether leukotriene mediated hedgehog-induced Nestin expression in tumor cells. The functions of leukotriene in tumor cell proliferation and tumor growth in medulloblastoma were determined through knocking down 5-lipoxygenase (a critical enzyme for leukotriene synthesis) by shRNAs, or using 5-lipoxygenase-deficient mice. Finally, the efficacies of antagonists of leukotriene synthesis in medulloblastoma treatment were tested in vivo and in vitro. RESULTS Leukotriene was significantly upregulated in medulloblastoma cells. Increased leukotriene synthesis relied on hedgehog ligand secreted by astrocytes, a major component of medulloblastoma microenvironment. Leukotriene stimulated tumor cells to express Nestin, a cytoskeletal protein essential for medulloblastoma growth. Genetic blockage of leukotriene synthesis dramatically suppressed medulloblastoma cell proliferation and tumor growth in vivo. Pharmaceutical inhibition of leukotriene synthesis markedly repressed medulloblastoma cell proliferation, but had no effect on proliferation of normal neuronal progenitors. Moreover, antagonists of leukotriene synthesis exhibited promising tumor inhibitory efficacies on drug-resistant medulloblastoma. CONCLUSIONS Our findings reveal a novel signaling pathway that is critical for medulloblastoma cell proliferation and tumor progression, and that leukotriene biosynthesis represents a promising therapeutic target for medulloblastoma treatment.
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Affiliation(s)
- Fang Du
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Larra Yuelling
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Eric H Lee
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Yuan Wang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Shengyou Liao
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yan Cheng
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Li Zhang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Chaonan Zheng
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Suraj Peri
- Biostatistics and Bioinformatics Research Facility, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Kathy Q Cai
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Jessica M Y Ng
- Children's Research Institute, Children's Mercy Kansas City, Kansas City, Missouri
| | - Tom Curran
- Children's Research Institute, Children's Mercy Kansas City, Kansas City, Missouri
| | - Peng Li
- Department of Pharmacognosy and Traditional Chinese Pharmacology, College of Pharmacy, Army Medical University, Chongqing, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania.
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Abstract
Lung cancer is the most common type of cancer and the leading cause of death in worldwide. MicroRNAs are known to be key players in a variety of biological processes, including tumorigenesis. In present study, we investigated the effect of miR-361-5p on lung cancer progression. We found that miR-361-5p was down-regulated in lung cancer. Overexpression of miR-361-5p suppressed lung cancer proliferation and invasion. Mechanistically, FOXM1 was identified as a direct target of miR-361-5p. Furthermore, miR-361-5p inhibits EMT-like phenotype through down-regulation of FOXM1 expression in lung cancer cells. In conclusion, our results indicated that miR-361-5p acts as a tumor suppressor in lung cancer.
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Yang ZJ, Tang L, Wen TQ, Ho KM, Wang CZ. Effects of Si solute on the glass formation and atomic structure of Pd liquid. J Phys Condens Matter 2019; 31:135701. [PMID: 30625432 DOI: 10.1088/1361-648x/aafd02] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Molecular dynamics simulations were performed to study the effects of Si solute on the glass formation and crystallization of Pd liquid. Pure Pd samples prepared by a quenching process with a cooling rate of 1013 K s-1 can be in an amorphous state but the structural analysis indicates there is nearly no glass-forming motif in the sample. However, doping a small amount of Si (Si concentration ~4%) the sample can be vitrified at a cooling rate of 1012 K s-1. The glass-forming motifs such as Pd-centered Z13, Si-centered Z9-like and mixed-ICO-cube clusters with five-fold local symmetry are found to be the dominant short-range orders in the glassy samples. With the increasing of the Si-doping concentration, these glass-forming motifs tend to aggregate and connect with each other forming a network structure. Our calculated results revealed that Si solutes in liquid Pd can significantly enhance the glass-forming ability.
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Affiliation(s)
- Z J Yang
- Department of Applied Physics, College of Science, Zhejiang University of Technology, Hangzhou 310023, People's Republic of China. Ames Laboratory-USDOE, Iowa State University, Ames, IA 50011, United States of America
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Song S, Jiang J, Zhao L, Wang Q, Lu W, Zheng C, Zhang J, Ma H, Tian S, Zheng J, Luo L, Li Y, Yang ZJ, Zhang X. Structural optimization on a virtual screening hit of smoothened receptor. Eur J Med Chem 2019; 172:1-15. [PMID: 30939349 DOI: 10.1016/j.ejmech.2019.03.057] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/19/2019] [Accepted: 03/23/2019] [Indexed: 11/28/2022]
Abstract
The Hedgehog (Hh) pathway plays a critical role during embryonic development by controlling cell patterning, growth and migration. In adults, the function of Hh pathway is curtailed to tissue repair and maintenance. Aberrant reactivation of Hh signaling has been linked to tumorigenesis in various cancers, such as basal cell carcinoma (BCC) and medulloblastoma. The Smoothened (Smo) receptor, a key component of the Hh pathway which is central to the signaling transduction, has emerged as an attractive therapeutic target for the treatment of human cancers. Taking advantage of the availability of several crystal structures of Smo in complex with different antagonists, we have previously conducted a molecular docking-based virtual screening to identify several compounds which exhibited significant inhibitory activity against the Hh pathway activation (IC50 < 10 μM) in a Gli-responsive element (GRE) reporter gene assay. The most potent compound (ChemDiv ID C794-1677: 47 nM) showed comparable Hh signaling inhibition to the marketed drug vismodegib (46 nM). Herein, we report our structural optimization based on the virtual screening hit C794-1677. Our efforts are aimed to improve potency, decrease cLogP, and remove potentially metabolic labile/toxic pyrrole and aniline functionalities presented in C794-1677. The optimization led to the identification of numerous potent compounds exemplified by 25 (7.1 nM), which was 7 folds more potent compared with vismodegib. In addition, 25 was much less lipophilic compared with C794-1677 and devoid of the potentially metabolic labile/toxic pyrrole and aniline functional groups. Furthermore, 25 exhibited promising efficacy in inhibiting Gli1 mRNA expression in NIH3T3 cells with either wildtype Smo or D473H Smo mutant. These results represented significant improvement over the virtual screening hit C794-1677 and suggested that compound 25 can be used as a good starting point to support lead optimization.
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Affiliation(s)
- Shiwei Song
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Jinyi Jiang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Li Zhao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Qin Wang
- BeiGene (Beijing) Co., Ltd., No. 30 Science Park Road, Zhongguancun Life Science Park, Beijing, 102206, PR China
| | - Wenfeng Lu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Chaonan Zheng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Jie Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Haikuo Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China; Cyrus Tang Hematology Center, Jiangsu Institute of Hematology and Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, PR China.
| | - Sheng Tian
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Jiyue Zheng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Lusong Luo
- BeiGene (Beijing) Co., Ltd., No. 30 Science Park Road, Zhongguancun Life Science Park, Beijing, 102206, PR China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Zeng-Jie Yang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China; Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, USA.
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China.
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Wang KY, Yang ZJ, Yu WX, Liu L, Chen Z, Guo YB. [Analysis of prognostic factors on multidisciplinary team for diagnosis, treatment and prevention of hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2019; 26:829-834. [PMID: 30616317 DOI: 10.3760/cma.j.issn.1007-3418.2018.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the prognostic factors on multidisciplinary team patients for diagnosis, and treatment of hepatocellular carcinoma. Methods: This retrospective study enrolled 132 HBsAg positive patients with HCC. MDT diagnostic approach was conducted at our hospital between 1 January 2015 and 31 December 2015, and all patients were followed up to 31 December 2017. Groups were arranged according to variables such as Barcelona stage, MDT compliance, and multidisciplinary combination therapy. TTP and OS were statistically analyzed. Results: The survival of the MDT compliance group was better than the non-compliance group. The difference in survival curves was statistically significant (χ(2) = 4.062, P < 0.05). The 1- and 2-year survival rates of the former group were 72.0%, 60.9%, and the latter was 64.3%, 40.3%. The survival of the combined treatment group was better than the non-combination group. The survival curves of the two groups were statistically significant (χ(2) = 9.502, P < 0.05), and they were independent influencing factors of survival (HR = 0.451, 95% CI, 0.210-0.968). The 1- and 2-year survival rates of the former group were 82.2% and 75.4%, and the latter was 63.1% and 44.6%. The median survival time of the follow-up group was 29.4 months, and the non-compliance and the uncombined group were 17.0 months. The difference was statistically significant (χ(2) = 13.336, P < 0.001). The median tumor progression time was 15.7 months in the combination group and 10.1 months in the non-compliance group (χ(2) = 7.263, P < 0.05). Conclusion: An advanced MDT compliance with implementation of multidisciplinary combination therapy may help to improve the prognosis of MDT patients with liver cancer.
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Affiliation(s)
- K Y Wang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z J Yang
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - W X Yu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Liu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Chen
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y B Guo
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Yang ZJ, Lyu JJ, Hou YW, Chen Z. [Application of restricted mean survival time in clinical follow-up study]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:247-250. [PMID: 30744281 DOI: 10.3760/cma.j.issn.0254-6450.2019.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In clinical follow-up studies, hazard ratio (HR) is routinely used to quantify the differences between-groups, however, it is being estimated by the Cox procedure. HR, the ratio of two hazard functions has abstract meaning only and is in lack of the context to give an intuitive explanation of the survival of patients and the assumption of proportional hazards (PH) must be satisfied. Under this context, the restricted mean survival time (RMST) can be used as a relatively effective measure or index of statistics. This paper introduces the RMST-based statistical analysis methods, including estimation of RMST and its difference, hypothesis testing and regression analysis. The application of RMST in data analysis is also introduced. All the evidence demonstrates that RMST can be used as an effective analytical tool with straightforward interpretation. RMST is also more effective than HR in comparing differences between groups, when non-PH is observed. Therefore, RMST is suggested to be stated along with HR in the process of disease efficacy evaluation and prognosis analysis. Cooperation and complement of the two, a precise reflection on the characteristics of data can be expected.
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Affiliation(s)
- Z J Yang
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - J J Lyu
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y W Hou
- Department of Statistics, School of Economics, Jinan University, Guangzhou 510632, China
| | - Z Chen
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou 510515, China
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He WX, Xing X, Yang ZJ, Yu Y, Wang N, Yu XQ. Biocatalytic One-Pot Three-Component Synthesis of Indoloquinolizines with High Diastereoselectivity. Catal Letters 2019. [DOI: 10.1007/s10562-019-02660-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yang ZJ, Yu HM, Liang YS, Zhao JX, Liu ZZ, Li HJ, Wang J, Zhang HT. [The effect of pre-operation (125)I seed activity measuring on dose accuracy]. Zhonghua Yi Xue Za Zhi 2018; 98:3336-3338. [PMID: 30440124 DOI: 10.3760/cma.j.issn.0376-2491.2018.41.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To measure the activity of (125)I seed and compare the dose difference of ten patients treated with seed implantation in pre-plan with actual seed activity and calibrate activity. Method: The activity of 100 seeds from company A and B was measured with a well-type ionization chamber 1 day before operation and named group A and B. The activity of two groups was compared and the error between actual and calibrate activity (22.2 MBq, group C) was calculated. Ten patients implanted with (125)I seeds from November 1 st to 30 th, 2017, solstice 30 were selected in Hebei General Hospital. Firstly, pre-plans were designed with 22.2 MBq, prescribed dose were 100-140 Gy. The dose parameters of 90% volume absorbed dose (D(90)), 150% volume fraction (V(150)) and 100% volume fraction (V(100)) were calculated. Then changed 22.2 MBq to actual activity of group A and B, calculated the dose parameters above again. Then dose parameters of D(90), V(150), V(100) in group C were compared with those in group A and B respectively. Result: The actual activity 1 day before the operation was(22.6±0.7)and(23.9±0.9)MBq in group A and B respectively. Compared with 22.2 MBq, the difference was statistically significant(t=5.7, P<0.05 and t=19.2, P<0.05), and the activity error of group B was greater than 5%. The D(90) of group A, B and C were (124.3±9.7) , (131.2±10.2) and (121.9±9.5) Gy respectively.The V(150) were 58.4%±9.4%, 63.7%±8.9% and 56.5%±9.2% respectively. The V(100) were 88.9%±5.0%, 92.0%±4.1%, 88.1%±5.2% respectively.The difference of D(90) between calibrate activity(group C) and actual activity(group A and B) were statistically significant (t=40.2, P<0.05 and t=40.3, P<0.05). The difference of V(150) between group C and group A and B were statistically significant (t=7.5, P<0.05 and t=24.7, P<0.05). The difference of V(100) between group C and group A and B were statistically significant (t=6.6, P<0.05 and t=7.3, P<0.05). Conclusion: There is difference between the actual activity and calibration activity. The difference affects the dose parameters in pre-plan.The seed activity should be measured before operation strictly and the pre-plan should be designed with the actual activity.
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Affiliation(s)
- Z J Yang
- Division I, Department of Oncology, Hebei General Hospital, Shijiazhuang 050000, China
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Tong RH, Chen ZY, Jiang ZH, Zhang XL, Cheng ZF, Liu LZ, Li W, Yan W, Wei YN, Lin ZF, Huang Y, Yang ZJ. Measurement of the toroidal radiation asymmetry during massive gas injection triggered disruptions on J-TEXT. Rev Sci Instrum 2018; 89:10E113. [PMID: 30399685 DOI: 10.1063/1.5035187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/21/2018] [Indexed: 06/08/2023]
Abstract
Disruptions have the potential to cause severe damage to large tokamaks like ITER. The mitigation of disruption damage is one of the essential issues for the tokamak. Massive gas injection (MGI) is a technique in which large amounts of a noble gas are injected into the plasma in order to safely radiate the plasma energy evenly over the entire plasma-facing wall. However, the radiated energy during the disruption triggered by massive gas injection is found to be toroidally asymmetric. In order to investigate the spatial and temporal structures of the radiation asymmetry, the radiated power diagnostics for the J-TEXT tokamak have been upgraded. The multi-channel arrays of absolute extreme ultraviolet photodiodes have been upgraded at four different toroidal positions to investigate the radiation asymmetries during massive gas injection. It is found that the toroidal asymmetry is associated with plasma properties and MGI induced MHD activities.
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Affiliation(s)
- R H Tong
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Y Chen
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z H Jiang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X L Zhang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z F Cheng
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - L Z Liu
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W Yan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y N Wei
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z F Lin
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Huang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Xie XL, Yang ZJ, Pan XM, Zhu YL, Zhou J, Zhou H, Zhuang G. Hyperbolic lens design of local oscillator optics system for electron cyclotron emission imaging on J-TEXT. Rev Sci Instrum 2018; 89:10H101. [PMID: 30399902 DOI: 10.1063/1.5035098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An electron cyclotron emission imaging diagnostic system that contains two 16-antenna arrays is being developed on J-TEXT tokamak. In this heterodyne system, the mixers in the front microwave antenna are used to down-convert the electron cyclotron emission to a 2-12 GHz radio frequency. All of the 24 antenna mixers in the individual enclosure box are driven by shining local oscillator (LO) power via launching optics. The previous approach for LO optics was designed with spherical and cylinder lenses, which has limitations such as the inhomogeneity of the energy deposition on different channels and the difficulty of optics alignment. A new generation of LO optics has been designed and applied on J-TEXT with a hyperbolic lens for uniform power deposition across the entire antenna array. The robustness of the optical alignment will be significantly increased with three hyperbolic lenses. Furthermore, the simulation results and robustness analysis of these LO optics are discussed in this paper.
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Affiliation(s)
- X L Xie
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X M Pan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y L Zhu
- University of California, Davis, California 95616, USA
| | - J Zhou
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - H Zhou
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - G Zhuang
- Department of Modern Physics, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
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Li Y, Chen ZY, Wei YN, Tong RH, Yan W, Lin ZF, Yang ZJ, Jiang ZH. Design of a shattered pellet injection system on J-TEXT tokamak. Rev Sci Instrum 2018; 89:10K116. [PMID: 30399929 DOI: 10.1063/1.5035186] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Disruptions have the possibility of causing severe wall damage to large tokamaks like ITER. The mitigation of disruption damage is essential to the safe operation of a large-scale tokamak. The shattered pellet injection (SPI) technique, which is regarded as the primary injection method for ITER, presents several advantages relative to massive gas injection, including more rapid particle delivery, higher total particle assimilation, and more centrally peaked particle deposition. A dedicated argon SPI system that focuses on disruption mitigation and runaway current dissipation has been designed for the Joint Texas Experimental Tokamak (J-TEXT). A refrigerator is used to form a single argon pellet at around 64 K. The pellet will be shaped with a 5 mm diameter and a 1.5-10 mm length. Helium gas at room temperature will be used as a propellant gas for pellet acceleration. The pellet can be injected with a speed of 150-300 m/s. The time interval between injection cycles is about 8 min. The pellet will be shattered at the edge of the plasma and then injected into the core of plasma. The first experiments of SPI fast shutdown and runaway current dissipation have been performed.
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Affiliation(s)
- Y Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Y Chen
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y N Wei
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - R H Tong
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W Yan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z F Lin
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z H Jiang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Yang HY, Chen ZY, Huang DW, Tong RH, Yan W, Wei YN, Lin ZF, Dai AJ, Gao HL, Wang XL, Li Y, Li W, Huang Y, Hu J, Wang DQ, Yang ZJ, Jiang ZH. Vertical fast electron bremsstrahlung diagnostic on J-TEXT tokamak. Rev Sci Instrum 2018; 89:10F126. [PMID: 30399909 DOI: 10.1063/1.5035185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
Fast electron bremsstrahlung (FEB) emission during Ohmic discharge experiments on the Joint Texas Experimental Tokamak (J-TEXT) has been measured by a recently developed vertical multi-channel FEB diagnostic based on CdZnTe detectors. There are 5 sight lines to observe the vertical emission of fast electrons at the high-field side with a spatial resolution of 5 cm. The FEB emission in the energy range of 30-300 keV can be measured. The generation of fast electrons accelerated by loop voltage has been confirmed during the early phase of discharge by analyzing the signals of FEB emission. The runaway electron beam instabilities have been observed with the FEB diagnostic on J-TEXT.
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Affiliation(s)
- H Y Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z Y Chen
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - D W Huang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - R H Tong
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W Yan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y N Wei
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z F Lin
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - A J Dai
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - H L Gao
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X L Wang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W Li
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Huang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - J Hu
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - D Q Wang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z H Jiang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Zhou H, Yang ZJ, Xie XL, Zhang C, Pan XM, Cai QX, Ruan BW. Measurement of electron temperature fluctuations on J-TEXT via correlation ECE. Rev Sci Instrum 2018; 89:10H105. [PMID: 30399888 DOI: 10.1063/1.5035121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/28/2018] [Indexed: 06/08/2023]
Abstract
The capabilities of the joint-Texas experimental tokamak correlation electron cyclotron emission (CECE) diagnostic have recently been extended with an upgrade. Four new yttrium iron garnet (YIG) filters from 4 GHz to 18 GHz with a bandwidth of 90 ∼ 230 MHz are added to the previous 4 channels. Optical optimization of the transmission line has improved the poloidal resolution, which allows k θ < 3.08 cm-1. The improvement of video amplifiers allows the frequency and amplitude gain to be adjusted discretely from 200 kHz to 1 MHz and from 200 to 1000, respectively, for different situations. A controller is designed to remotely adjust the center frequency of the YIG filters. Based on the CECE, the distribution and the effect of magnetohydrodynamic instabilities on electron temperature fluctuations have been observed. The experiment results show good performance of the upgraded CECE diagnostic.
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Affiliation(s)
- H Zhou
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X L Xie
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - C Zhang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X M Pan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Q X Cai
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - B W Ruan
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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42
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Gordon RE, Zhang L, Peri S, Kuo YM, Du F, Egleston BL, Ng JMY, Andrews AJ, Astsaturov I, Curran T, Yang ZJ. Statins Synergize with Hedgehog Pathway Inhibitors for Treatment of Medulloblastoma. Clin Cancer Res 2018; 24:1375-1388. [PMID: 29437795 DOI: 10.1158/1078-0432.ccr-17-2923] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 12/01/2017] [Accepted: 01/09/2018] [Indexed: 01/18/2023]
Abstract
Purpose: The role of cholesterol biosynthesis in hedgehog pathway activity and progression of hedgehog pathway medulloblastoma (Hh-MB) were examined in vivo Statins, commonly used cholesterol-lowering agents, were utilized to validate cholesterol biosynthesis as a therapeutic target for Hh-MB.Experimental Design: Bioinformatic analysis was performed to evaluate the association between cholesterol biosynthesis with hedgehog group medulloblastoma in human biospecimens. Alterations in hedgehog signaling were evaluated in medulloblastoma cells after inhibition of cholesterol biosynthesis. The progression of endogenous medulloblastoma in mice was examined after genetic blockage of cholesterol biosynthesis in tumor cells. Statins alone, or in combination with vismodegib (an FDA-approved Smoothened antagonist), were utilized to inhibit medulloblastoma growth in vivoResults: Cholesterol biosynthesis was markedly enhanced in Hh-MB from both humans and mice. Inhibition of cholesterol biosynthesis dramatically decreased Hh pathway activity and reduced proliferation of medulloblastoma cells. Statins effectively inhibited medulloblastoma growth in vivo and functioned synergistically in combination with vismodegib.Conclusions: Cholesterol biosynthesis is required for Smoothened activity in the hedgehog pathway, and it is indispensable for the growth of Hh-MB. Targeting cholesterol biosynthesis represents a promising strategy for treatment of Hh-MB. Clin Cancer Res; 24(6); 1375-88. ©2018 AACR.
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Affiliation(s)
- Renata E Gordon
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania.,Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Li Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Suraj Peri
- Biostatistics and Bioinformatics Research Facility, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Yin-Ming Kuo
- Cancer Epigenetics Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Fang Du
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Brian L Egleston
- Biostatistics and Bioinformatics Research Facility, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Jessica M Y Ng
- Children's Research Institute, Children's Mercy Kansas City, Missouri
| | - Andrew J Andrews
- Cancer Epigenetics Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Igor Astsaturov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Molecular Therapeutics Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Tom Curran
- Children's Research Institute, Children's Mercy Kansas City, Missouri
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania. .,Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
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Chen PS, Liu J, Meng HY, Wu P, Yang ZJ. [Beneficial effects of Schisandrin B on the cardiac structure and function in a mice model of myocardial infarction]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:963-970. [PMID: 29166724 DOI: 10.3760/cma.j.issn.0253-3758.2017.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate whether Schisandrin B (Sch B) could improve cardiac structure and function in myocardial infarction (MI) mice and related mechanisms. Methods: Male C57BL/6J mice were randomized into sham (n=8), MI+ Sch B (n=24, 80 mg·kg(-1)·d(-1) per gavage) or MI+ vehicle (n=24, equal volume). After treatment for 3 weeks, cardiac function was detected by echocardiography measurement.Infarction size was measured by Evans blue and TTC staining.HE and Masson trichrome staining were used to observe the myocardial inflammation, structure and fibrosis.TNF-α, TGF-β, IL-1β were detected by ELISA. The apoptosis index of ischemic myocardial cells was detected by immunofluorescence. NF-κB, Bcl-2, Bax, Akt phosphorylated Akt(p-Akt), eNOS, phosphorylated eNOS (p-eNOS) were detected by Western blot. Results: Three weeks after operation, survival rate (83.33% vs. 54.17%, P<0.05), LVEF((51.77±8.50)% vs.(40.23±8.30)%, P<0.05), LVFS((26.44±5.15)% vs. (19.53±4.56)%, P<0.05)were significantly higher; LVEDD ((4.13±0.40) mm vs.(4.44±0.46)mm, P<0.05), LVESD((3.07±0.39) mm vs. (3.46±0.52)mm, P<0.05), the heart weight/body weight ratio((0.59±0.06)% vs. (0.68±0.10)%, P<0.05)was significantly lower and infarct size ((23.4±2.36)% vs. (39.4±2.06)%, P<0.05) was significantly reduced in MI+ Sch B group than those in MI+ vehicle group. In MI+ vehicle group, HE staining showed a large number of inflammatory cells in the peri-infarctl region, and the permutation structure was very disorganized, while above changes were significantly reduced in the MI+ Sch B group. Masson staining results showed that the degree of myocardial fibrosis in MI+ Sch B group was significantly less than that of MI+ vehicle group.Moreover, Sch B could down-regulate some inflammatory cytokines, like NF-κB、TGF-β、TNF-α and IL-1β, activate Akt-eNOS pathway, upgrade Bcl-2 and downgrade Bax and reduce cell apoptosis as compared with MI+ vehicle group (all P<0.05). Conclusions: Our results demonstrate that Sch B can reduce inflammation, inhibit apoptosis, and attenuate cardiac remodeling and improve cardiac function in this mice MI model.Sch B might serve as a potential novel therapeutic agent for ischemic heart disease.
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Affiliation(s)
- P S Chen
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou 221009, China
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44
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Yang ZJ, Gordon R. PDTM-08. STATINS SYNGERGIZE WITH SMOOTHENED INHIBITOR VISMODEGIB TO INHIBIT MEDULLOBLASTOMA GROWTH. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox168.773] [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: 11/14/2022] Open
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45
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Liu Y, Yuelling LW, Wang Y, Du F, Gordon RE, O'Brien JA, Ng JMY, Robins S, Lee EH, Liu H, Curran T, Yang ZJ. Astrocytes Promote Medulloblastoma Progression through Hedgehog Secretion. Cancer Res 2017; 77:6692-6703. [PMID: 28986380 DOI: 10.1158/0008-5472.can-17-1463] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [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: 06/13/2017] [Revised: 08/10/2017] [Accepted: 09/26/2017] [Indexed: 12/30/2022]
Abstract
Astrocytes, the most abundant type of glial cells in the brain, play critical roles in supporting neuronal development and brain function. Although astrocytes have been frequently detected in brain tumors, including medulloblastoma (MB), their functions in tumorigenesis are not clear. Here, we demonstrate that astrocytes are essential components of the MB tumor microenvironment. Tumor-associated astrocytes (TAA) secrete the ligand sonic hedgehog (Shh), which is required for maintaining MB cell proliferation despite the absence of its primary receptor Patched-1 (Ptch1). Shh drives expression of Nestin in MB cells through a smoothened-dependent, but Gli1-independent mechanism. Ablation of TAA dramatically suppresses Nestin expression and blocks tumor growth. These findings demonstrate an indispensable role for astrocytes in MB tumorigenesis and reveal a novel Ptch1-independent Shh pathway involved in MB progression. Cancer Res; 77(23); 6692-703. ©2017 AACR.
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Affiliation(s)
- Yongqiang Liu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Larra W Yuelling
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Yuan Wang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Fang Du
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Renata E Gordon
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Jenny A O'Brien
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Jessica M Y Ng
- Children's Research Institute, Children's Mercy Kansas City, Kansas City, Missouri
| | - Shannon Robins
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Eric H Lee
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Hailong Liu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Tom Curran
- Children's Research Institute, Children's Mercy Kansas City, Kansas City, Missouri
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania.
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
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46
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Zhang W, Wang N, Yang ZJ, Li YR, Yu Y, Pu XM, Yu XQ. Lipase-Initiated Tandem Biginelli Reactions via in situ
-Formed Acetaldehydes in One Pot: Discovery of Single-Ring Deep Blue Luminogens. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700599] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wei Zhang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Zeng-Jie Yang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Yan-Rong Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Yuan Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xue-Mei Pu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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Lu W, Liu Y, Ma H, Zheng J, Tian S, Sun Z, Luo L, Li J, Zhang H, Yang ZJ, Zhang X. Design, Synthesis, and Structure-Activity Relationship of Tetrahydropyrido[4,3-d]pyrimidine Derivatives as Potent Smoothened Antagonists with in Vivo Activity. ACS Chem Neurosci 2017; 8:1980-1994. [PMID: 28618224 DOI: 10.1021/acschemneuro.7b00153] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 12/16/2022] Open
Abstract
Medulloblastoma is one of the most prevalent brain tumors in children. Aberrant hedgehog (Hh) pathway signaling is thought to be involved in the initiation and development of medulloblastoma. Vismodegib, the first FDA-approved cancer therapy based on inhibition of aberrant hedgehog signaling, targets smoothened (Smo), a G-protein coupled receptor (GPCR) central to the Hh pathway. Although vismodegib exhibits promising therapeutic efficacy in tumor treatment, concerns have been raised from its nonlinear pharmacokinetic (PK) profiles at high doses partly due to low aqueous solubility. Many patients experience adverse events such as muscle spasms and weight loss. In addition, drug resistance often arises among tumor cells during treatment with vismodegib. There is clearly an urgent need to explore novel Smo antagonists with improved potency and efficacy. Through a scaffold hopping strategy, we have identified a series of novel tetrahydropyrido[4,3-d]pyrimidine derivatives, which exhibited effective inhibition of Hh signaling. Among them, compound 24 is three times more potent than vismodegib in the NIH3T3-GRE-Luc reporter gene assay. Compound 24 has a lower melting point and much greater solubility compared with vismodegib, resulting in linear PK profiles when dosed orally at 10, 30, and 100 mg/kg in rats. Furthermore, compound 24 showed excellent PK profiles with a 72% oral bioavailability in beagle dogs. Compound 24 demonstrated overall favorable in vitro safety profiles with respect to CYP isoform and hERG inhibition. Finally, compound 24 led to significant regression of subcutaneous tumor generated by primary Ptch1-deficient medulloblastoma cells in SCID mouse. In conclusion, tetrahydropyrido[4,3-d]pyrimidine derivatives represent a novel set of Smo inhibitors that could potentially be utilized to treat medulloblastoma and other Hh pathway related malignancies.
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Affiliation(s)
- Wenfeng Lu
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Yongqiang Liu
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania 19111, United States
| | - Haikuo Ma
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Jiyue Zheng
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Sheng Tian
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Zhijian Sun
- BeiGene (Beijing) Co., Ltd., No. 30 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, P. R. China
| | - Lusong Luo
- BeiGene (Beijing) Co., Ltd., No. 30 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, P. R. China
| | - Jiajun Li
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Hongjian Zhang
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
| | - Zeng-Jie Yang
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania 19111, United States
| | - Xiaohu Zhang
- Jiangsu Key Laboratory
of Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, P. R. China
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He HY, Yang ZJ, Zeng DY, Yao DS, Fan JT, Zhao RF, Zhang JQ, Hu XX, Lin Z, Jiang YM, Li L. [Comparison of the short-term and long-term outcomes of laparoscopic surgery and open surgery for early-stage cervical cancer]. Zhonghua Zhong Liu Za Zhi 2017. [PMID: 28635237 DOI: 10.3760/cma.j.issn.0253-3766.2017.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the short-term and long-term outcomes after laparoscopic surgery compared with traditional laparotomy in cases of stage ⅠA2-ⅡA2 cervical cancer. Methods: We conducted a retrospective study on the clinical data of 1 863 patients diagnosed as FIGO stages ⅠA2-ⅡA2 cervical cancer in 6 third-grade class-A hospitals in Guangxi province between January 2007 and May 2014. One thousand and seventy-one received laparoscopy, and 792 received laparotomy. T-test, U-test and χ(2) test were used to compare the short-term and long-term outcomes. The short-term outcomes included surgical related outcomes and operative complications, and the long-term outcomes included quality of life (pelvic floor functions and sexual functions), survival and recurrence. Pelvic floor function and sexual function were assessed with the International Consultation on Incontinence Quesonnaire Female Lower Urinary tract(ICIQ-FLUTS) and the Female Sexual Function Inventory (FSFI), respectively. Survival rates were estimated by Kaplan-Meier analysis. The survival curves were compared with Log-rank test. Cox regression analysis was used to evaluaterisk factors for prognosis. Results: (1)The short-term outcomes : There were significant difference in operative time([(257±69) vs(238±56)min], estimated blood loss[(358±314) vs(707±431)ml], anus exhausting time[(2.5±0.9) vs (2.9±0.8)d], preserved days of catheter[(15±7) vs(18±9)d], and post-operative length of stay[(19±16) vs (30±21)d] between the laparoscopic surgery group and the opensurgery group(P<0.05). There was no significant difference in lymph nodes yielded[(21±9) vs (21±11)], left parametrial width[(2.5±0.8) vs (2.7±0.7)cm], right parametrial width [(2.6±0.3) vs (2.7±0.2)cm], vaginal cuff length[(2.4±0.7) vs (2.2±0.7)cm] between the laparoscopic surgery group and the opensurgery group(P>0.05). The intra-operative complications occurred in 8.1%(87/1 071)in the laparoscopic surgery group and in 10.7%(85/792)in the open surgery group(P>0.05). However, the complications of vascular injury in the laparoscopic surgery group[2.6%(28/1 071)]was lower than that in the open surgery group[7.7%(61/792), P<0.001]. The laparoscopic surgery exhibited lower post- operative complication rate [33.8%(362/1 071)vs 40.2%(318/792), P<0.05] and poorer wound healing rate [0.7%(7/1 071)vs 4.0%(32/792), P<0.05]. (2)The long-term outcomes(Hierarchical analysis): The overall incontinence in ICIQ-FLUTS questionnaire in nerve-sparing laparoscopic group [28.4%(67/236)] was lower than that in the open surgery group [35.9%(71/198), P=0.004] . However, There was no significant difference in degree of incontinence between the two groups(P>0.05). The overall sexual dysfunction in FSFI questionnaire after 12 months of postoperative in the nerve-sparing laparoscopic group [47.0%(111/236)]was lower than that in the open surgery group [58.6%(116/198), P=0.001], and the six different dimension scores in the laparoscopic surgery group were higher than that in the open surgery group (P<0.05). The recurrence rate was 3.5%(35/1 007)in the laparoscopicsurgery group and 4.7%(35/740)in the open surgery group(P>0.05). The 5-year OS was 94.0% for the laparoscopic surgery group and 90.2% for the open surgery group(P>0.05), and the 5-year DFS was 93.9% for the laparoscopic surgery group and 89.1% for the open surgery group(P>0.05). (3) Prognostic fators: In univariate analysis, tumor dimension, clinical stage, deep stromal invasion, LVSI, and retroperitoneal lymph node metastasis signficantly affected 5-year OS and 5-year DFS(P<0.05); In multivariate analyses, LVSI, deep stromal invasion and LN metastasis were independent prognostic factors(P<0.05). Conclusions: Laparoscopy can reduceestimated blood loss, accelerate postoperative recovery and improve the quality of life after surgery compared to laparotomy, and it ensures the same oncological results as open surgery. Laparoscopic approach is a safe and effective treatment for early-stage cervical cancer.
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Affiliation(s)
- H Y He
- Department of Gynecological Oncology, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, 545005, China
| | | | - D Y Zeng
- Department of Gynecological Oncology, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, 545005, China
| | - D S Yao
- Department of Gynecologic Oncology, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - J T Fan
- Department of Gynecology, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - R F Zhao
- Department of Gynecology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - J Q Zhang
- Department of Gynecologic Oncology, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - X X Hu
- Department of Gynecology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Z Lin
- Department of Gynecology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning 530011, China
| | - Y M Jiang
- Department of Gynecology, the Liuzhou People's Hospital, Liuzhou, 545006, China
| | - L Li
- Department of Gynecologic Oncology, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
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Gordon RE, Zhang L, Yang ZJ. Restore the brake on tumor progression. Biochem Pharmacol 2017; 138:1-6. [PMID: 28389227 DOI: 10.1016/j.bcp.2017.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/03/2017] [Indexed: 11/19/2022]
Abstract
Sonic hedgehog (Shh) signaling plays a key role in regulation of normal development. The negative feedback mechanism mediated by the transcriptional factor, Gli3, acts to finely tune Shh signaling, providing tight control of normal developmental processes. Hyperactivation of Shh signaling often leads to many human malignancies, including basal cell carcinoma and medulloblastoma (MB). However, how tumor cells sustain the aberrant activation of Shh signaling is still not completely understood. We recently revealed that during MB formation, tumor cells express Nestin, a type VI intermediate filament protein, which maintains uncontrolled Shh signaling by abolishing negative feedback by Gli3. Therefore, Nestin expression is a necessary step for MB formation. These findings highlight the novel function of Nestin in regulating Shh signaling, as well as the important role of a disrupted negative feedback mechanism in MB tumorigenesis. Further, restoration of the intrinsic negative feedback by repressing Nestin expression represents a promising approach to treat MB as well as other Shh signaling associated malignancies.
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Affiliation(s)
- Renata E Gordon
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - Li Zhang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA; Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, China.
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Zhao BB, Yang ZJ, Wang Q, Pan ZM, Zhang W, Li L. [Clinical validation of multiple biomarkers suspension array technology for ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:11-19. [PMID: 28190310 DOI: 10.3760/cma.j.issn.0529-567x.2017.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigates the diagnostic value of combined detection serum CCL18, CXCL1 antigen, C1D, TM4SF1, FXR1, TIZ IgG autoantibody by suspension array for ovarian cancer. Methods: Suspension array was used to detect CCL18, CXCL1 antigen, C1D, TM4SF1, FXR1, TIZ IgG autoantibody in 120 cases of healthy women, 204 cases of patients with benign pelvic tumors, 119 cases of pelvic malignant tumor patients, and 40 cases with breast cancer, lung cancer oroliver cancer, respectively. Constructed diagnosis model of combined detection six biomarkers for diagnosis of ovarian malignant tumor. Constructed diagnosis model of combined detection autoantibodies to diagnose epithelial ovarian cancer. Analysed the value of detecting six biomarkers for diagnosis of ovarian malignant tumor and detecting autoantibodies for diagnosis of epithelial ovarian cancer. Analysed diagnostic value of detecting six biomarkers to diagnose stage Ⅰ and Ⅱepithelial ovarian cancer. Compared diagnostic value of detecting six biomarkers in diagnosis of tissue types and pathologic grading with that of CA(125). Results: Model of combined detecting six biomarkers to diagnose ovarian malignant tumor was logit (P) =-11.151+0.008×C1D+0.011×TM4SF1+0.011×TIZ-0.008×FXR1+0.021×CCL18+0.200×CXCL1. Model of combined detection autoantibodies to diagnose epithelial ovarian cancer was logit (P) =-5.137+0.013×C1D+0.014×TM4SF1+0.060×TIZ-0.060×FXR1. Sensitivity and specificity of detecting six biomarker to diagnose ovarian malignant tumor was 90.6% and 98.7%. Sensitivity and specificity of detecting autoantibodies to diagnose epithelial ovarian cancer was 75.8% and 96.7%. Combined detection for six biomarkers to diagnose serous and mucinous ovarian cancer was statistically no better than those of CA(125) (P=0.196 and P=0.602, respectively); there was significantly difference in diagnosis of ovarian cancer (P=0.023), and there was no significantly difference in diagnosis of different pathological grading (P=0.089 and P=0.169, respectively). Conclusions: Constructing diagnosis model of combined detection six biomarker to diagnose ovarian malignant tumor and constructed diagnosis model of combined detectionautoantibodies to diagnose epithelial ovarian cancer. Combined detection six biomarkers to diagnose serous and mucinous ovarian tumors is better than that of CA(125).
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Affiliation(s)
- B B Zhao
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Laboratory of Early Prevention and Treatment for Regional High Frequence Tumor Ministry of Education Key Laboratory, Nanning 530021, China
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