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Dai J, Tan S, Wang L, Ling F, Duan F, Ma M, Shao Y, Rui X, Yao Y, Hu E, Wu X, Li C, Yu Y. High-Voltage Potassium Hexacyanoferrate Cathode via High-Entropy and Potassium Incorporation for Stable Sodium-Ion Batteries. ACS Nano 2023; 17:20949-20961. [PMID: 37906735 DOI: 10.1021/acsnano.3c02323] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Prussian blue analogues (PBAs) used as sodium ion battery (SIB) cathodes are usually the focus of attention due to their three-dimensional open frame and high theoretical capacity. Nonetheless, the disadvantages of a low working voltage and inferior structural stability of PBAs prevent their further applications. Herein, we propose constructing the Kx(MnFeCoNiCu)[Fe(CN)6] (HE-K-PBA) cathode by high-entropy and potassium incorporation strategy to simultaneously realize high working voltage and cycling stability. The reaction mechanism of metal cations in HE-K-PBA are revealed by synchrotron radiation X-ray absorption spectroscopy (XAS), ex situ X-ray photoelectron spectroscopy (XPS), and in situ Raman spectra. We also investigate the entropy stabilization mechanism via finite element simulation, demonstrating that HE-K-PBA with small von Mises stress and weak structure strain can significantly mitigate the structural distortion. Benefit from the stable structure and everlasting K+ (de)intercalation, the HE-K-PBA delivers high output voltage (3.46 V), good reversible capacity (120.5 mAh g-1 at 0.01 A g-1), and capacity retention of 90.4% after 1700 cycles at 1.0 A g-1. Moreover, the assembled full cell and all-solid-state batteries with a stable median voltage of 3.29 V over 3000 cycles further demonstrate the application prospects of the HE-K-PBA cathode.
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Affiliation(s)
- Junyi Dai
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Sha Tan
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Lifeng Wang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Fangxin Ling
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Fuqiang Duan
- College of Aerospace Science and Engineering, National University of Defense Technology, Chang Sha 410073, Hunan, China
| | - Mingze Ma
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Yu Shao
- Jiujiang DeFu Technology Co., LTD., Jiujiang 332000, Jiangxi, China
| | - Xianhong Rui
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yu Yao
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Enyuan Hu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Xiaojun Wu
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Chunyang Li
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Yan Yu
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, Anhui, China
- National Synchrotron Radiation Laboratory, Hefei, Anhui 230026, China
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Fu JX, Wang M, Duan F, Yan J, Wang Y, Yuan B, Ye H. Contrast-enhanced magnetic resonance angiography in the identification of prostatic arterial anatomy in patients with benign prostatic hyperplasia: prospective comparison with digital subtraction angiography. Clin Radiol 2023; 78:e169-e176. [PMID: 36650079 DOI: 10.1016/j.crad.2022.09.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/03/2022] [Accepted: 09/21/2022] [Indexed: 01/19/2023]
Abstract
AIM To evaluate the utility of contrast-enhanced magnetic resonance angiography (CE-MRA) for identifying prostatic artery (PA) anatomy in patients with benign prostatic hyperplasia (BPH) before PA embolisation (PAE), using digital subtraction angiography (DSA) as the reference standard. MATERIALS AND METHODS A total of 176 patients underwent pelvic CE-MRA at 3 T. DSA was performed within the following 7 days. Two interventional radiologists compared the CE-MRA findings with DSA findings to assess the anatomy of the PAs. The rates of correct identification of the origins and collaterals of the PAs by CE-MRA were calculated. The utility for predicting the optimal X-ray tube angle obliquity for visualising the origins of the PAs by CE-MRA was evaluated. An exact McNemar's test was used to compare the detection rates of the PAs and the collaterals with DSA versus CE-MRA. A two-sided p-value of <0.05 was considered statistically significant. RESULTS Of the 376 PAs identified by DSA, CE-MRA correctly identified the origins of 369 vessels (98.1%), with a 1.9% false-negative rate and no false-positive results. Of the 57 total collaterals identified by DSA, CE-MRA identified 50 vessels correctly (87.7%), with a 12.3% false-negative rate and no false-positive results. No significant differences were observed between CE-MRA and DSA in the identification of the PA origins (p=0.824) and the collaterals (p=0.327). The optimal degree for an oblique projection to visualise the origins of the PAs could be predicted accurately (100%) by pre-procedural CE-MRA. CONCLUSION CE-MRA before PAE can reliably predict the PA anatomy and facilitate procedural planning.
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Affiliation(s)
- J X Fu
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
| | - M Wang
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China.
| | - F Duan
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
| | - J Yan
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
| | - Y Wang
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
| | - B Yuan
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
| | - H Ye
- Department of Diagnostic Radiology, Chinese PLA General Hospital, Beijing 100853, PR China
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3
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Xu JE, Qi XK, Yao S, Han XC, Liu JG, Duan F, Sun CJ. [Motor neuron damage in late-onset Pompe disease: a case report and literature review]. Zhonghua Nei Ke Za Zhi 2023; 62:200-202. [PMID: 36740412 DOI: 10.3760/cma.j.cn112138-20220310-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- J E Xu
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - X K Qi
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - S Yao
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - X C Han
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - J G Liu
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - F Duan
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - C J Sun
- Department of Neurology, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
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Montazari E, Abdel-Wahab N, Johnson D, Spillson C, Elsayes K, Duan F, Yadav S, Allison J, Sharma P, Diab A. 151P Clinical outcome and preliminary immune analysis of phase II clinical trial of combination of tocilizumab with ipilimumab and nivolumab for patients with treatment naïve metastatic melanoma. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Duan F, Zhu H, Ibrahim YE, Adamu M. Durability and Property Study of Decade Old Crumb Rubber Concrete Cored Specimens. Materials (Basel) 2022; 15:5490. [PMID: 36013628 PMCID: PMC9410247 DOI: 10.3390/ma15165490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/21/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
Crumb rubber concrete (CRC) is a concrete that contains rubber crumbs. This article presents a study of three experiments on long aged CRC specimens that were cored from a decade old CRC bridge deck in Tianjin, China. The three experimental tests conducted were: (1) the flexural stress-strain test on semi-circular disk specimens; (2) the accelerated steel-rebar corrosion test and (3) the carbonation test. In addition, the in situ carbonation test was also carried out on the CRC bridge deck. The flexural stress-strain test results showed that the CRC semi-circular disk specimens exhibited a ductile pattern and high-energy absorbing capacity with its flexural tensile strength being at 5 MPa and the flexural modulus of 10 GPa. The steel corrosion rust rate via the calculation of steel mass loss before and after the test in the accelerated steel-rebar corrosion test remained extremely low. The carbonation test results showed that in comparison with the prediction of two popular carbonation models, the carbonation in the CRC bridge deck took place at a much slower rate during the last 13 years. All of the results obtained in this study are reported for the first-time and indicate that these CRC cored specimens exhibit good mechanical properties and excellent durability characteristics after a decade in service, which may provide the technical knowledge for the possible future application of CRC in concrete constructions.
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Affiliation(s)
- Fuqiang Duan
- School of Civil Engineering, Tianjin University, Tianjin 300350, China
| | - Han Zhu
- School of Civil Engineering, Tianjin University, Tianjin 300350, China
| | - Yasser E. Ibrahim
- Engineering Management Department, College of Engineering, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Musa Adamu
- Engineering Management Department, College of Engineering, Prince Sultan University, Riyadh 11586, Saudi Arabia
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Zeba F, Yanning W, Melek J, Duan F, Atalay MK, Jankowich M, Rounds S. Prognostic Significance of Pulmonary Artery to Aorta Ratio and Other CT Markers in Pulmonary Fibrosis With and Without Emphysema. Lung 2021; 199:677-680. [PMID: 34741227 DOI: 10.1007/s00408-021-00490-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/25/2021] [Indexed: 11/28/2022]
Abstract
Pulmonary hypertension (PH) is associated with decreased survival in patients with pulmonary fibrosis and combined pulmonary fibrosis and emphysema. Main pulmonary artery (PA) diameter and PA diameter/ascending aortic diameter (PA/AA) ratio, as measured on CT, have recently emerged as specific markers for PH. Our single-center retrospective study found that PA/AA ratio > 1 is associated with decreased survival in individuals with pulmonary fibrosis, with or without emphysema. Our study also describes markers of cardiac remodeling, and the echocardiographic diagnosis of PH in this patient population.
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Affiliation(s)
- F Zeba
- Pulmonary Critical Care Medicine, Dartmouth Hitchcock Medical Center, Lebanon, USA.
| | - W Yanning
- Biostatistics and Center for Statistical Sciences, School of Public Health, Brown University, Providence, USA
| | - J Melek
- Health Informatics, Providence VA Medical Center, Providence, USA
| | - F Duan
- Biostatistics and Center for Statistical Sciences, School of Public Health, Brown University, Providence, USA
| | - M K Atalay
- Diagnostic Imaging and Cardiology, The Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence, USA
| | - M Jankowich
- Vascular Research Laboratory, Pulmonary Critical Care Medicine, Providence VA Medical Center, The Warren Alpert Medical School of Brown University, Providence, USA
| | - S Rounds
- Vascular Research Laboratory, Pulmonary Critical Care Medicine, Providence VA Medical Center, The Warren Alpert Medical School of Brown University, Providence, USA
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7
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Duan F, Tang J, Kong FL, Zou HW, Ni BL, Yu JC. Identification of PTK7 as a promising therapeutic target for thyroid cancer. Eur Rev Med Pharmacol Sci 2021; 24:6809-6817. [PMID: 32633373 DOI: 10.26355/eurrev_202006_21670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To evaluate the possible involvement of PTK7 in the progression of human thyroid cancer and assess its potential effects on the proliferation and apoptosis of thyroid cancer. PATIENTS AND METHODS Immunohistochemical (IHC) assays and clinical significance analysis were performed to explore the correlations between PTK7 expression and clinical characteristics of patients with thyroid cancer. Quantitative PCR assays and Immunoblot assays were performed to detect the expression of PTK7 in control or PTK7 shRNA plasmids transfected thyroid cancer cells. MTT assays were performed to detect the effects on the proliferation of thyroid cancer cells. Flow cytometry (FCM) assays were performed to assess the changes in cell apoptosis of thyroid cancer. Additionally, the effects of PTK7 on tumor growth were detected through in vivo tumor growth assays. RESULTS PTK7 is highly expressed in human thyroid cancer tissues, and its expression levels are associated with the clinical characteristics, including TNM stage (p=0.015*), and intraglandular dissemination (p=0.024*) of patients with thyroid cancer. PTK7 ablation inhibits cell proliferation and stimulates cell apoptosis of thyroid cancer in vitro. Additionally, PTK7 contributes to tumor growth of thyroid cancer cells in mice. CONCLUSIONS We demonstrated the involvement of PTK7in the progression of thyroid cancer, and therefore provided a novel and promising therapeutic target for thyroid cancer treatment.
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Affiliation(s)
- F Duan
- Department of Otolaryngology Head and Neck Surgery, Jiujiang First People's Hospital, Jiujiang, China.
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8
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Kong T, Chen L, Duan F, Wang L, Zhao X, Hou X, Zhou H, Miao W, Wang L, Hu S. 1797P Efficacy and safety analysis of EP / EC regimen combined with first-line anlotinib hydrochloride in the treatment of extensive small cell lung cancer: Results from a phase II single-arm trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1558] [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: 11/29/2022] Open
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9
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Yuan B, Wang Y, Zhang JL, Yan JY, Yuan K, Wang XQ, Fu JX, Duan F, Wang MQ. [Value of lenvatinib for the treatment of advanced hepatocellular carcinoma]. Zhonghua Yi Xue Za Zhi 2020; 100:833-836. [PMID: 32234154 DOI: 10.3760/cma.j.cn112137-20190818-01832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To observe the safety and efficacy of lenvatinib for the treatment of medium-advanced hepatocellular carcinoma. Methods: A total of 36 patients with medium-advanced hepatocellular carcinoma from the First Medical Center of the Chinese PLA General Hospital were retrospectively analyzed from January 2018 to May 2019. All patients had shown tumor progression after at least 2 sessions of TACE. The patients were consisted of 30 males and 6 females with age range of 35 to 76 (54±10) years. Patients received orally administered lenvatinib at a dose of 12 mg once daily for patients ≥ 60 kg and 8 mg once daily for patients<60 kg. According to modified RECIST criteria the tumor response, disease control rate, overall survival and progression free survival were evaluated once every 6-8 weeks. The adverse events were recorded. Results: No patient was in complete response, 2 cases (5.7%) in partial response, and 5 cases (14.3%) in stable disease, respectively. Disease control rate was 20.0% (7/35), the overall survival was 11.5 months, and the progression free survival was 5.3 months. The overall incidence of adverse events was 66.7% (24/36). The most frequent adverse events were hypertension, proteinuria, hand-foot skin reaction and abdominal distension. Conclusion: Lenvatinib can extend the overall survival in a percentage of medium-advanced hepatocellular carcinoma patients who were unresectable and refractory to TACE. Although the incidence of adverse events is high, most of them are mild and reversible.
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Affiliation(s)
- B Yuan
- Department of Interventional Radiology, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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10
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Zhu Y, Qiu X, Yu T, Zhang C, Zhao X, Duan F, Hao D. Feasibility of three-dimensional constructive interference in steady state sequences for evaluating the anterolateral ligament. Clin Radiol 2019; 74:978.e9-978.e14. [PMID: 31582170 DOI: 10.1016/j.crad.2019.08.014] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/20/2019] [Indexed: 11/24/2022]
Abstract
AIM The purpose of the study was to determine the feasibility of three-dimensional (3D) constructive interference in steady state (CISS) sequences for evaluating the anterolateral ligament (ALL). MATERIALS AND METHODS Magnetic resonance imaging (MRI) of the right knee joint in 30 healthy volunteers was performed using a 3 T MRI machine. Axial T2-weighted imaging with fat saturation (T2WI-FS), coronal proton-density-weighted imaging with fat saturation (PDWI-FS), and 3D-CISS were included in the protocol. Multiplanar reconstruction (MPR) and rotating stretched curved planar reconstructions (CPRs) of the ALL at 30°, 60°, 90°, 120°, and 150° were generated from the 3D-CISS images. The visibility of the femoral part, meniscal part, tibial part, meniscal insertion, femoral footprint, and tibial footprint of the ALL on the imaging of all sequences was recorded. RESULTS Based on the CPR of 3D-CISS MRI, the presence of tibial and femoral footprints of the ALL was rated superior to MPR and PDWI-FS (96.67% and 96.67%, respectively; p<0.017). Rotating CPR of 3D-CISS MRI imaging was rated superior to PDWI-FS with respect to the tibial part, meniscal part, and meniscal insertion of the ALL (96.67%, 83.33%, and 83.33%, respectively; p<0.05). Rotating CPR of 3D-CISS MRI was rated superior to PDWI-FS with respect to the femoral part of the ALL, but the difference was not statistically significant (p=0.095). The angle between the ALL and lateral collateral ligament (LCL) on the oblique sagittal image was 18.34±1.88°. CONCLUSIONS The MRI 3D-CISS sequences significantly enhanced the ability to identify the ALL compared to the 2D MRI sequences.
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Affiliation(s)
- Y Zhu
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - X Qiu
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
| | - T Yu
- Department of Sport Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - C Zhang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - X Zhao
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - F Duan
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - D Hao
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Campbell M, Martin S, Tam A, Sheth R, Singh S, Ahrar K, Slack Tidwell B, Rao P, Karam J, Wood C, Tannir N, Jonasch E, Gao J, Shah A, Blando J, Duan F, Basu S, Allison J, Sharma P, Singh S. A pilot study of tremelimumab (treme) with or without cryoablation (cryo) in patients (pts) in metastatic renal cell carcinoma (mRCC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249.059] [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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12
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Peikert T, Duan F, Rajagopalan S, Karwoski R, Balar A, Lakhani D, Antic S, Bartholmai B, Tucker J, Massion P, Maldonado F. OA06.06 Independent Validation of a Novel High-Resolution Computed Tomography-Based Radiomic Classifier for Indeterminate Lung Nodules. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Zhang JL, Wang MQ, Duan F, Yuan B. [A comparative study of prostatic artery embolization in the treatment of benign prostatic hyperplasia with different prostatic volume]. Zhonghua Yi Xue Za Zhi 2019; 99:2435-2439. [PMID: 31434423 DOI: 10.3760/cma.j.issn.0376-2491.2019.31.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy of prostatic artery embolization (PAE) in the treatment of patients with benign prostatic hyperplasia (BPH) with different prostatic volume (PV). Methods: In this single-center, retrospective study, 137 patients, mean age (70±11) years, range 50-89 years, undergoing PAE for BPH between January 2015 and May 2017 in Chinese PLA General Hospital were involved and divided into three groups according to the PV (group A, >80 ml; group B, 40-80 ml; group C, <40 ml). The changes of international prostate symptoms (IPSS) score, quality of life (QoL) score, and maximum urinary flow rate (Q(max)) were compared among the three groups at 1, 6, and 12 months post-PAE. Correlation between the proportion of prostate ischemia at 1 month post-PAE and the proportion of PV reduction at 12 month post-PAE were analyzed, also the correlation between both of them with IPSS and QoL score were analyzed, respectively. Results: Mean baseline prostate volumes were 110 ml in group A (n=62), 67 ml in group B (n=47) and 33 ml in group C (n=28). At 12 months post-PAE, the outcomes of IPSS score and Q(max) in group A were better than those in group B and C (all P<0.05).The proportion of prostate ischemia at 1 month post-PAE and proportion of PV reduction at 12 month post-PAE in group A, B, and C were 61.4%, 49.3%, 38.0%, and 47.3%, 29.3%, 24.6%, respectively. The proportion of prostate ischemia in group A was larger than that in group B and C (P=0.049, 0.004), also the proportion of PV reduction in group A was greater than that in group B and C (P<0.01). The proportion of prostate ischemia at 1 month post-PAE in all three groups were positively correlated with the proportion of PV reduction at 12 month post-PAE (r=0.699, P=0.024; r=0.719, P=0.019; r=0.821, P=0.004), and there were positive correlations between both of them and the improvement of IPSS score at 12 month post-PAE (0.5<r<1.0, all P<0.05), while no correlation with the improvement of QoL score. Conclusions: Patients with BPH with PV larger than 80 ml are more suitable for PAE. The proportion of prostate ischemia and prostate volume reduction after PAE can predict the efficacy of PAE.
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Affiliation(s)
- J L Zhang
- The School of Medicine, Nankai University, Tianjin 300071, China
| | - M Q Wang
- The School of Medicine, Nankai University, Tianjin 300071, China
| | - F Duan
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, China
| | - B Yuan
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, China
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14
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Zhang JL, Wang MQ, Duan F, Ye HY, Shen YG, Sun CJ, Zhang XJ, Li ZQ, Jiang WH, Yuan K. [Significance of pelvic contrast enhanced MRA prior to prostatic artery embolization]. Zhonghua Yi Xue Za Zhi 2019; 98:3848-3852. [PMID: 30585028 DOI: 10.3760/cma.j.issn.0376-2491.2018.47.007] [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 assess the values of pelvic contrast enhanced magnetic resonance angiography (MRA) in detection of prostatic artery prior to prostatic arterial embolization(PAE). Methods: This multicenter, prospective study from 5 hospitals in China consisted of 47 patients (mean age (69±16) years, range 56-83 years) who underwent PAE for benign prostatic hyperplasia (BPH) between January 2016 and April 2018, preprocedural prediction of prostatic arteries were determined using contrast enhanced MRA.CE-MRA findings were compared with subsequent intraprocedural digital subtraction angiography (DSA) or DSA combined with cone-beam computed tomography (CT) to assess the sensitivity and specificity with which contrast enhanced MRA predicted the number and origins of prostatic artery, also to assess the optimal oblique projection of PA. Results: In total, 47 patients (94 pelvic sides) with 97 PAs confirmed by DSA or DSA combined with cone-beam CT at the time of embolization, MR angiography successfully identified 88 PAs and their origins , the sensitivity and specificity was 90.7% (88/97) and 93.6% (88/94), respectively.MR angiography correctly determined the bilateral prostatic artery origins in 36 (76.6%) cases.According to the optimal oblique projection of PAs suggested by MR angiography, the origins and trajectory of PAs of all patients underwent PAE with the same oblique projection (20°-45°ipsilateral anterior oblique direction) were clearly displayed when performed the first arteriography. Conclusion: Pelvic contrast enhanced MR angiography with high sensitivity and specificity in detection the origin, trajectory and number of PAs, and it could provide useful information regarding prostatic arteries before PAE.
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Affiliation(s)
- J L Zhang
- School of Medicine, Nankai University, Tianjin 300071, China
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Abstract
Epoxidized soybean oil methyl esters could be efficiently prepared with the transesterification of epoxidized soybean oil (ESBO) with a lower dosage of methanol using lipase Novozym 435 as catalyst. The optimum parameters were as follows: the molar ratio of 5:1 (methanol to ESBO), 5% Novozym 435 as catalyst, at 45 °C for 14 h, with a stirring speed of 600rpm, under which the epoxidized soybean oil methyl esters (ESBOME) could be obtained at a 95.7% yield. During the enzymatic transesterification process, the oxirane oxygen values were kept unchangeable, which indicated that excellent functional group tolerance could be achieved under such mild reaction conditions. In addition, the recyclability of the immobilized enzyme Novozym 435 in this transesterification process was examined and the results showed that the biocatalyst could be reused ten times without losing any reaction activity or selectivity. And the final products of ESBOME were also identified by IR and NMR analysis. The kinetic data obtained followed the Ping-Pong Bi mechanism model (Vmax = 6.132 mol·L-1min-1, Km,S = 0,0001 mol·L-1, Km, A = 796.148 mol·L-1, Ki, A = 0,0004 mol·L-1) with competitive inhibition by methanol.
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Duan F, Su XL, Wei ZX, Kong DW, Huang TY, Wang S. Efficacy of computed tomography-guided implantation of 125I seeds in the treatment of refractory malignant tumors accompanied with cancer pain and its influence on tumor markers in the serum. Eur Rev Med Pharmacol Sci 2018; 22:1595-1601. [PMID: 29630101 DOI: 10.26355/eurrev_201803_14564] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study intended to explore the efficacy of computed tomography (CT)-guided implantation of iodine-125 (125I) seeds in the treatment of refractory malignant tumors with cancer pain and its influence on tumor markers in the serum. PATIENTS AND METHODS 76 patients with refractory malignant tumors accompanied by cancer pain that received treatments in LongHua Hospital Shanghai University of Traditional Chinese Medicine from September 2013 to August 2014 were selected. They were divided into control group and observation group using a random number table (38 patients in each group). Patients in the control group received simple chemotherapy, while those in the observation group undergone CT-guided implantation of 125I seeds in combination with chemotherapy. Recent efficacy and 1-3-year survival rate were compared between the two groups of patients. The degree of pain relief after treatment was also compared between the two groups of patients. Electrochemiluminescence method was used to detect the concentrations of carcinoembryonic antigen (CEA), sugar chain antigen 199 (CA 199), sugar chain antigen 125 (CA 125), neuron-specific enolase (NSE) and cytokeratin-19-fragment (CYFRA21-1) in the two groups of patients before treatment, and 3 days, 7 days and 30 days after treatment. RESULTS Recent disease control rate of the patients in the observation group was higher than that of the patients in the control group (p<0.05). The 1-3-year survival rate after surgery in the observation group was significantly higher than that in the control group (p<0.05). The total efficiency of pain control in the observation group was significantly higher than that in the control group (p<0.05). The levels of tumor markers in the two groups of patients were significantly decreased after treatment, while the reduction in the observation group was more evident than that in the control group (p<0.05). CONCLUSIONS Our results showed that CT-guided implantation of 125I seeds is effective for the treatment of patients with refractory malignant tumors accompanied by cancer pain. It can reduce the levels of tumor markers, improve the survival rate and prolong the survival time of the patients.
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Affiliation(s)
- F Duan
- Department of Radiology, LongHua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China.
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Young R, Hopkins R, Duan F, Greco E, Chiles C, Aberle D, Gamble G. OA 15.03 Gene-Based Risk Stratification of NLST-ACRIN Screening Participants Identifies The “Sweet Spot” of Screening (N=10,054). J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Hopkins R, Young R, Duan F, Greco E, Chiles C, Aberle D, Gamble G. Lung cancer screening and the effects of competing causes of death in the ACRIN-NLST sub-study. Respir Med 2017. [DOI: 10.1016/j.rmed.2017.07.054] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Young R, Hopkins R, Duan F, Greco E, Chiles C, Aberle D, Gamble G. Stratification of NLST-ACRIN screening participants identifies the “sweet spot” of screening by identifying early stage lung cancers most amenable to curative surgery (N=10,054). Respir Med 2017. [DOI: 10.1016/j.rmed.2017.07.055] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wang Q, Duan F, Liu P, Wang PF, Wang MX. Expression of anti-SRP19 antibody in muscle tissues from patients with autoimmune necrotizing myopathy. Genet Mol Res 2016; 15:gmr8307. [PMID: 27525944 DOI: 10.4238/gmr.15038307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to investigate the role of anti-SRP19 antibody in muscle tissues of patients with autoimmune necrotizing myopathy. Immunohistochemistry staining was used to determine the expression of anti-SRP19 antibodies in muscle tissues of autoimmune necrotizing myopathy patients. Results demonstrated that anti-SRP19 antibody was expressed in 71.4% (20/28) of muscle tissue specimens from patients with autoimmune necrotizing myopathy. Anti-SRP19 antibody expression was mainly localized in cytoplasm of necrotic muscle fibers surrounding the small blood vessels and interstitial cells. There were no significant differences in the age, course of disease, muscle, and creatine kinase levels between patients with positive or negative expression of anti-SRP19 antibodies. The expression levels of anti-SRP19, serum anti-nuclear antibodies, as well as anti-Ro-52, anti- SSA, anti-Sm, and anti-Jo-1 antibodies were not significantly different among groups. This study demonstrates that anti-SRP19 antibody is highly expressed in muscle tissues of patients with autoimmune necrotizing myopathy, and suggests that this protein may be involved in the origin and progression of the disease.
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Affiliation(s)
- Q Wang
- EmergencyDepartment, General Hospital of Chinese People's Armed Police Forces, Beijing, China
| | - F Duan
- Department of Neurology, Navy General Hospital, Beijing, China
| | - P Liu
- Department of VIP Neurology, Navy General Hospital, Beijing, China
| | - P F Wang
- Department of Neurology, Aerospace Center Hospital, Peking University Aerospace Clinical College, Beijing, China
| | - M X Wang
- Orthopaedics Department, General Hospital of Chinese People's Armed Police Forces, Beijing, China
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Zhao J, Shu P, Duan F, Wang X, Min L, Shen Z, Ruan Y, Qin J, Sun Y, Qin X. Loss of OLFM4 promotes tumor migration through inducing interleukin-8 expression and predicts lymph node metastasis in early gastric cancer. Oncogenesis 2016; 5:e234. [PMID: 27294866 PMCID: PMC4945743 DOI: 10.1038/oncsis.2016.42] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 01/15/2016] [Accepted: 05/11/2016] [Indexed: 12/26/2022] Open
Abstract
Endoscopic surgery is increasingly used for early gastric cancer (EGC) treatment worldwide, and lymph node metastasis remains the most important risk factor for endoscopic surgery in EGC patients. Olfactomedin 4 (OLFM4) is mainly expressed in the digestive system and upregulated in several types of tumors. However, the role of OLFM4 in EGC has not been explored. We evaluated OLFM4 expression by immunohistochemical staining in 105 patients with EGC who underwent gastrectomy. The clinicopathological factors and OLFM4 expression were co-analyzed to predict lymph node metastasis in EGC. The metastatic mechanism of OLFM4 in gastric cancer was also investigated. We found that OLFM4 was upregulated in EGC tumor sections, and relatively low expression of OLFM4 was observed in patients with lymph node metastasis. OLFM4 expression as well as tumor size and differentiation were identified as independent factors, which could be co-analyzed to generate a better model for predicting lymph node metastasis in EGC patients. In vitro studies revealed that knockdown of OLFM4 promoted the migration of gastric cancer cells through activating the NF-κB/interleukin-8 axis. Negative correlation between OLFM4 and interleukin-8 expression was also observed in EGC tumor samples. Our study implies that OLFM4 expression is a potential predictor of lymph node metastasis in EGC, and combing OLFM4 with tumor size and differentiation could better stratify EGC patients with different risks of lymph node metastasis.
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Affiliation(s)
- J Zhao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - P Shu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - F Duan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - X Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - L Min
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z Shen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Ruan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - J Qin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Sun
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - X Qin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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Abstract
Maternally imprinted genes of makorin ring finger protein 3 (MKRN3) and nucleosome assembly protein 1-like 5 (NAP1L5) have been identified in many species but have not yet been investigated in rabbits. In this study, a polymorphism-based approach and bisulfite-sequencing PCR (BSP) were used to determine the imprinting status of MKRN3 and NAP1L5 in rabbits. The single nucleotide polymorphism (SNP)-based sequencing results demonstrated that MKRN3 and NAP1L5 were expressed preferentially from the paternal allele. Furthermore, the BSP results showed the gamete-specific methylation patterns and hemimethylation in brain and full methylation in liver were observed in MKRN3 and NAP1L5 respectively. Thus, we provide the first evidence that MKRN3 and NAP1L5 are paternally expressed genes and that the CpG islands located in the promoter region may be the putative differentially methylated region of these two genes in rabbits.
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Affiliation(s)
- L Yuan
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
| | - L Lai
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
| | - F Duan
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
| | - M Chen
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
| | - J Deng
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
| | - Z Li
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, 130062, China
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Affiliation(s)
- D. Shi
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - T. Mei
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Q. Chen
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - F. Duan
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - M. Chen
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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24
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Liu J, Qiao W, Qi X, Zhao H, Zheng K, Qian H, Yao S, Yao S, Duan F, Qiu F, Xia D, Y Y, Sun C. Comparison of the features of MRI of tumefactive demyelinating lesions and glioma. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Li Z, Duan F, Lin L, Huang Q, Wu K. A New Approach of Delivering siRNA to the Cornea and its Application for Inhibiting Herpes Simplex Keratitis. Curr Mol Med 2014; 14:1215-25. [DOI: 10.2174/1566524014666141021145909] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 07/18/2014] [Accepted: 07/26/2014] [Indexed: 11/22/2022]
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26
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Bazan J, Duan F, Snyder B, Horng D, Graves E, Siegel B, Machtay M, Loo B. Metabolic Tumor Volume Predicts Overall Survival in Patients With Stage III Non-Small Cell Lung Cancer Treated on ACRIN 6668/RTOG 0235. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Ohri N, Duan F, Machtay M, Gorelick J, Snyder B, Alavi A, Siegel B, Johnson D, Bradley J, DeNittis A, Werner-Wasik M. Metabolic Tumor Volume on FDG-PET Predicts Clinical Outcomes Following Chemoradiation Therapy for Locally-Advanced Non-small Cell Lung Cancer: A Secondary Analysis of ECOG-ACRIN 6668 / RTOG 0235. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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28
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Song P, Wang MQ, Liu FY, Duan F, Wang Y. Iatrogenic renovascular injuries treated by transarterial embolization. Eur Rev Med Pharmacol Sci 2013; 17:3398-3404. [PMID: 24379074] [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: 06/03/2023]
Abstract
BACKGROUND Renal vascular injury may be secondary to blunt or penetrating trauma, iatrogenic injuries or spontaneously with or without underlying pathology. The study aims to evaluate the effectiveness and safety of transarterial embolization (TAE) for the treatment of iatrogenic renovascular injuries (IRVIs). PATIENTS AND METHODS Thirty-six patients (27 males, 9 females, aged 14-79 years) with IRVIs were treated with TAE. Preprocedure computed tomography (CT) and/or ultrasound (US) and/or digital subtraction angiography (DSA) confirmed the presence of IRVIs in all 36 patients. The embolic materials include metallic coils, polyvinyl alcohol particles (PVA), gelfoam and n-butyl cyanoacrylate (NBCA) iodized oil mixture were used. The results of the embolization procedure were recorded. Patients were followed up, and complications of the procedure were noted. RESULTS A total of 40 embolization procedures were performed in 36 patients, and technical success was achieved in all procedures. Medical successes were achieved in 32 (89%) patients. Postembolization syndrome (back pain and fever) were detected in 12 patients (22%). Perirenal abscess was seen in one patient (3%). Puncture-site bleeding, nontarget embolization, decrease in renal function, and arterial hypertension were not detected in any of the patients. CONCLUSIONS TAE is an effective, minimally invasive treatment method for IRVIs. Therefore, TAE should be the first preferred treatment modality.
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Affiliation(s)
- P Song
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing, China.
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29
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Qi M, Lu D, Li Y, Qin J, Wang H, Zhang Z, Chen X, Duan F, Ma J. Antitumor effect of recombinant human interferon-β adenovirus on esophageal squamous cell cancer in vitro. Dis Esophagus 2013; 27:196-201. [PMID: 23639140 DOI: 10.1111/dote.12081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Interferon (IFN)-β has efficient antitumor effect both in vitro and in vivo, but its clinical implication is limited by short half-life and systemic toxicities. Gene therapy could be the choice to avoid the defects. Adenovirus vector containing human IFN-β gene was transfected into esophageal squamous cell carcinoma KYSE150 cells. Expression of human (h)IFN-β was detected by reverse transcription polymerase chain reaction and immunocytochemistry in KYSE150 cells. Cell growth and clonogenic assays, and flow cytometry were used to observe the antiproliferation effect and apoptosis on tumor cells, respectively. Reverse transcription polymerase chain reaction and immunocytochemistry showed obvious hIFN-β expression in KYSE150 cells after transfection and the tumor cell proliferation was obviously inhibited through cell proliferation and clonogenic assays. Flow cytometry analysis showed 27.3% cell apoptosis in adenovirus vector containing human IFN-β gene transfection group compared with 1.12% in empty vector control group. These findings indicate that hIFN-β gene mediated by recombinant adenovirus may have antitumor activity against human esophageal carcinoma cell by inducing apoptosis in vitro.
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Affiliation(s)
- M Qi
- Affiliated Luoyang Central Hospital, Zhengzhou University, Luoyang
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30
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Ng HK, Luo L, Hu Y, Duan F. Parameter estimation of three-parameter Weibull distribution based on progressively Type-II censored samples. J STAT COMPUT SIM 2012. [DOI: 10.1080/00949655.2011.591797] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Jolles PJ, Kostakoglu L, Bear HD, Idowu MO, Kurdziel K, Shankar L, Mankoff DA, Duan F, L'Heureux DZ. OT2-05-03: ACRIN 6688 Phase II Study of Fluorine-18 3′-Deoxy-3′ Fluorothymidine (FLT) in Invasive Breast Cancer. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-ot2-05-03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Neoadjuvant chemotherapy (NAC) prior to surgery provides enhanced options for locoregional management and has become an integral component of primary breast cancer management. Initial tumor response in patients receiving NAC is generally determined at therapy completion. This evaluation is determined by either the presence/absence of palpable tumor as a clinical response and/or presence/absence of invasive tumor cells in the breast and nodes as a pathological response. The ability to evaluate the effectiveness of neoadjuvant therapy early during treatment would be of significant importance. FDG PET imaging has been shown to be predictive of subsequent tumor response, but the tendency of FDG to accumulate in inflammatory tissues can complicate image interpretation. MRI changes have also been touted as predictors of response. Preliminary data suggest that early FLT PET is better able to predict response to therapy, as FLT uptake has been shown to correlate with cellular proliferation, and does not significantly accumulate in inflammatory tissue (Kenny et al, Eur J Nucl Med Mol Imaging 2007:1339–1347). The analysis of these data may provide a better understanding of early treatment response and improve the clinical management of breast cancer in the future.
Trial design and eligibility: In this phase II multi-institutional study, breast cancer patients with locally advanced disease with a tumor size ≥2cm (measured on imaging or estimated by physical exam) are eligible. Participants will receive standard of care NAC at their respective institutions. Participants will have 3 FLT imaging sessions to evaluate therapy response: at baseline, early-treatment (5-10 days after initiating treatment), and post-treatment prior to surgery.
Specific aims: The primary objective is to correlate the percentage change in the standardized uptake value between baseline and early therapy FLT in the primary tumor with pathologic response. Correlatively, FLT PET parameters will be compared with proliferative indices from the initial biopsy and residual tumor surgical samples using Ki-67 staining, mitotic index, and residual cancer burden. Potential safety issues and the physiologic effects associated with FLT administration will also be evaluated.
Statistical methods: To evaluate the relationship between an uptake parameter and pathologic complete response, a ROC curve will be estimated and the area under the curve, along with its 95% confidence interval, will be determined.
Accrual: Currently, 45/67 patients have accrued to the study.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr OT2-05-03.
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Affiliation(s)
- PJ Jolles
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - L Kostakoglu
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - HD Bear
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - MO Idowu
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - K Kurdziel
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - L Shankar
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - DA Mankoff
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - F Duan
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
| | - DZ L'Heureux
- 1Virginia Commonwealth University, Richmond, VA; Mount Sinai School of Medicine, New York, NY; National Cancer Institute, Bethesda, MD; University of Washington, Seattle, WA; Brown University, Providence, RI; American College of Radiology Imaging Network, Philadelphia, PA
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Machtay M, Duan F, Snyder B, Gorelick J, DeNittis A, Chiles C, Mahon I, Alavi A, Siegel B, Bradley J. Can Tumor FDG-PET Scan Uptake (SUV) Predict Local Control in Stage III NSCLC? Preliminary Results from ACRIN 6668/RTOG 0235. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jolles PR, Kostakoglu L, Bear HD, Idowu MO, Kurdziel KA, Shankar L, Mankoff DA, Duan F, L'Heureux D. ACRIN 6688 phase II study of fluorine-18 3′-deoxy-3′ fluorothymidine (FLT) in invasive breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.tps125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Franklin WA, Berg CD, Tze S, Groshong S, Achcar RD, Duan F, Adams A, Marquez G, Seligson DB, Aberle DR. Tissue sampling and digital histologic imaging for the National Lung Screening Trial. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e12032] [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: 11/20/2022] Open
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35
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Toro-Nieves DM, Rodriguez Y, Plaud M, Ciborowski P, Duan F, Pérez Laspiur J, Wojna V, Meléndez LM. Proteomic analyses of monocyte-derived macrophages infected with human immunodeficiency virus type 1 primary isolates from Hispanic women with and without cognitive impairment. J Neurovirol 2008; 15:36-50. [PMID: 19115125 DOI: 10.1080/13550280802385505] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The signature for human immunodeficiency virus type 1 (HIV-1) neurovirulence remains a subject of intense debate. Macrophage viral tropism is one prerequisite but others, including virus-induced alterations in innate and adaptive immunity, remain under investigation. HIV-1-infected mononuclear phagocytes (MPs; perivascular macrophages and microglia) secrete toxins that affect neurons. The authors hypothesize that neurovirulent HIV-1 variants affect the MP proteome by inducing a signature of neurotoxic proteins and thus affect cognitive function. To test this hypothesis, HIV-1 isolates obtained from peripheral blood of women with normal cognition (NC) were compared to isolates obtained from women with cognitive impairment (CI) and to the laboratory adapted SF162, a spinal fluid R5 isolate from a patient with HIV-1-associated dementia. HIV-1 isolates were used to infect monocyte-derived macrophages (MDMs) and infection monitored by secreted HIV-1 p24 by enzyme-linked immunosorbent assay (ELISA). Cell lysates of uninfected and HIV-1-infected MDMs at 14 days post infection were fractionated by cationic exchange chromatography and analyzed by surface enhanced laser desorption ionization time of flight (SELDI-TOF) using generalized estimating equations statistics. Proteins were separated by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (1D SDS-PAGE) and identified by tandem mass spectrometry. Levels of viral replication were similar amongst the HIV-1 isolates, although higher levels were obtained from one viral strain obtained from a patient with CI. Significant differences were found in protein profiles between virus-infected MDMs with NC, CI, and SF162 isolates (adjusted P value after multiple testing corrections, or q value <.10). The authors identified 6 unique proteins in NC, 7 in SF162, and 20 in CI. Three proteins were common to SF162 and CI strains. The MDM proteins linked to infection with CI strains were related to apoptosis, chemotaxis, inflammation, and redox metabolism. These findings support the hypothesis that the macrophage proteome differ when infected with viral isolates of women with and without CI.
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Affiliation(s)
- D M Toro-Nieves
- Department of Microbiology and Medical Zoology, Specialized Neurosciences Research Program, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
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García K, García V, Pérez Laspiur J, Duan F, Meléndez LM. Characterization of the placental macrophage secretome: implications for antiviral activity. Placenta 2008; 30:149-55. [PMID: 19070362 DOI: 10.1016/j.placenta.2008.10.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Revised: 10/24/2008] [Accepted: 10/27/2008] [Indexed: 11/29/2022]
Abstract
It is well documented that placental macrophages show lower levels of HIV-1 infection than monocyte-derived macrophages (MDM). We used proteomic methods to test the hypothesis that placental macrophages secrete different proteins as compared to MDM that may contribute to decreased HIV-1 replication. Placental macrophages and MDM were cultured for 12 days and supernatant was collected. To characterize supernatants, the protein profiles of placental macrophages and MDM were compared using the protein chip assay. Subsequently, proteins were separated by one-dimensional gel electrophoresis and identified by tandem mass spectrometry at the corresponding mass to charge (m/z) range of 5000-20,000. Significant differences were found between placental macrophages and MDM in seven protein peaks with m/z values of 6075, 6227, 11,662, 14,547, 6158, 7740, and 11,934 on the CM10 and IMAC chips. After sequencing and identification, five proteins were validated for differential expression in placental macrophages and MDM by Western blot analyses. Peroxiredoxin 5, found to be more abundant in placental macrophage supernatants, is important in the cellular antioxidant mechanisms, and other members of its family have shown antiviral activity. Cystatin B was less abundant in PM supernatant, and decreased intracellular levels have recently been shown to be associated with lower HIV-1 replication in placental macrophages than in MDM. This study elucidates for the first time the placental macrophage secretome corresponding to 5000-20,000 Da and advances our understanding of the proteins secreted in the placenta that can protect the fetus against HIV-1 and other viral infections.
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Affiliation(s)
- K García
- Department of Microbiology and Medical Zoology, San Juan 00935, Puerto Rico
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Cohen AD, Diab A, Perales MA, Duan F, Jenq R, Rizzuto G, Hirschorn-Cymmerman D, Merghoub T, Wolchok JD, Houghton AN. Agonist anti-GITR antibody induces CD8 T cell-mediated tumor rejection. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.3058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3058 Background: Signaling through GITR (glucocorticoid-induced tumor necrosis factor receptor) can abrogate the suppressive effects of CD4+foxp3+ regulatory T cells and co-stimulate activated effector CD4+ and CD8+ T cells. We have previously shown that in vivo GITR ligation using the agonist anti-GITR mAb DTA-1 augments concomitant immunity and immunity generated by active immunization with self- tumor antigens. In the present study, we assessed the activity of anti-GITR mAb used alone, focusing on the effects of GITR ligation on CD8+ T cells during tumor growth. Methods: C57BL/6 mice were injected intradermally with B16 melanoma and received 1mg of DTA-1 or control rat IgG intraperitoneally on various days after tumor injection. In some experiments, naïve, CFSE-labeled pmel-1 CD8+ transgenic T cells (specific for the melanoma antigen gp10025–33 epitope) were transferred into naïve recipients 1 day prior to B16 inoculation. Results: DTA-1 treatment on days 0 and 4 led to tumor rejection in 20–30% and 50–60% of mice, respectively, compared with rejection in 0–5% of mice treated with control IgG (p<0.05 for both). Treatment at day 7 or later had no significant impact on tumor-free survival. The importance of CD8+ T cells in mediating DTA-1-induced tumor immunity was demonstrated by 4 findings: 1) in untreated mice, tumor-infiltrating CD8+ lymphocytes significantly upregulated GITR expression during tumor growth; 2) DTA-1-treated mice had greater CD8+ T cell infiltration into tumors than IgG-treated mice; 3) depletion of CD8+ cells completely abrogated the tumor protection provided by DTA-1; and 4) tumor-specific CD8+ cells proliferated more extensively, became more activated, and exhibited greater effector function following DTA-1 administration compared with control IgG. This was most dramatically seen within the tumor (compared with spleen or draining lymph node), suggesting that a major mechanism of tumor immunity induced by anti-GITR mAb may be overcoming impaired CD8+ T cell function within the tumor microenvironment. Conclusions: Ligating GITR using an agonist mAb can by itself augment tumor-specific CD8+ T cell responses and induce rejection of an aggressive, poorly immunogenic tumor. This strategy merits further consideration as an immune-modulating therapy for cancer. No significant financial relationships to disclose.
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Affiliation(s)
- A. D. Cohen
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - A. Diab
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - M. A. Perales
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - F. Duan
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - R. Jenq
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - G. Rizzuto
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | | | - T. Merghoub
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - J. D. Wolchok
- Memorial Sloan-Kettering Cancer Center, New York, NY
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Berro A, Sugiura H, Liu X, Duan F, Kawasaki S, Togo S, Kamio K, Wang X, Mao L, Ahn Y, Ertl R, Casale T, Rennard S. Airway Fibroblasts Isolated from Mouse Model of Allergic Asthma Display Distinct Cellular and Phenotypic Characteristics as Compared to Normal Fibroblasts. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.12.547] [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: 12/01/2022]
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Jones BA, Kasl SV, Soler H, Van Ness P, Howe C, Lachman M, Beeghly A, Dallal C, Duan F. #11 Race / ethnic differences in breast cancer survival. Ann Epidemiol 2002. [DOI: 10.1016/s1047-2797(02)00299-5] [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: 11/26/2022]
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40
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Zou N, Lin BY, Duan F, Lee KY, Jin G, Guan R, Yao G, Lefkowitz EJ, Broker TR, Chow LT. The hinge of the human papillomavirus type 11 E2 protein contains major determinants for nuclear localization and nuclear matrix association. J Virol 2000; 74:3761-70. [PMID: 10729151 PMCID: PMC111885 DOI: 10.1128/jvi.74.8.3761-3770.2000] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [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] [Indexed: 11/20/2022] Open
Abstract
The E2 protein of papillomaviruses is a site-specific DNA binding nuclear protein. It functions as the primary replication origin recognition protein and assists in the assembly of the preinitiation complex. It also helps regulate transcription from the native viral promoter. The E2 protein consists of an amino-terminal (N) trans-acting domain, a central hinge (H) domain, and a carboxyl-terminal (C) protein dimerization and DNA binding domain. The hinge is highly divergent among papillomaviruses, and little is known about its functions. We fused the enhanced green fluorescent protein (GFP) with the full-length human papillomavirus type 11 (HPV-11) E2 protein and showed that the resultant fusion, called gfpE2, maintained transcription and replication functions of the wild-type protein and formed similar subnuclear foci. Using a series of GFP fusion proteins, we showed that the hinge conferred strong nuclear localization, whereas the N or C domain was present in both cytoplasm and nucleus. Biochemical fractionation demonstrated that the N domain and hinge, but not the C domain, independently associated with the nuclear matrix. Mutational analyses showed that a cluster of basic amino acid residues, which is conserved among many mucosotropic papillomaviruses, was required for efficient nuclear localization and nuclear matrix association. This mutation no longer repressed the HPV-11 upstream regulatory region-controlled reporter expression. However, a very small fraction of this mutant colocalized with E1 in the nucleus, perhaps by a piggyback mechanism, and was able to support transient replication. We propose that the hinge is critical for the diverse regulatory functions of the HPV-11 E2 protein during mRNA transcription and viral DNA replication.
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Affiliation(s)
- N Zou
- Department of Biochemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294-0005, USA
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41
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Li J, Wu L, Feng C, Gao Y, Tang F, Duan F. [A brief history of discovery of Helicobacter pylori]. Zhonghua Yi Shi Za Zhi 1999; 29:203-6. [PMID: 11624238] [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: 02/21/2023]
Abstract
The theoretical background for the diagnosis and treatment of upper digestive ulcer, gastritis and stomach carcinema was challenged by H. pylori, a microbe seems only under the microscope. This paper makes a brief review on the brief history of discovery and recent conclusion on the microbe, and explores its challenge to the traditional conception.
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Affiliation(s)
- J Li
- First Hospital Affiliated to Henan Medical University, Zhengzhou 450003
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42
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Yu N, Duan F, Guan J. [A processing study of herba Cistanches]. Zhongguo Zhong Yao Za Zhi 1990; 15:342-3, 383. [PMID: 2206385] [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: 12/30/2022]
Abstract
The synthetic rate of DNA in the liver and spleen and metallic microelements have been determined for the different preparations of Herba Cistanches. The results show that the salted Herba Cistanches in steamed from affects the synthetic rate of DNA in "Yang-Deficiency" animal models, with trace elements Zn, Mn, Cu, and Fe higher in content than other traditional preparations.
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Affiliation(s)
- N Yu
- Central Laboratory, Wuhan Municipal First Hospital, Hubei Province
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