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Long Z, Hesley GK, Lu A, Hangiandreou NJ, Gorny KR, Tiegs-Heiden CA. MRgFUS ablation of a recurrent tenosynovial giant cell tumor in the foot using ExAblate 2100 system in combination with patient immobilization device. Radiography (Lond) 2024; 30:840-842. [PMID: 38574580 DOI: 10.1016/j.radi.2024.03.010] [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: 12/20/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
INTRODUCTION Magnetic Resonance-guided Focused Ultrasound (MRgFUS) treatment for certain anatomy locations can be extremely challenging due to patient positioning and potential motion. This present study describes the treatment of a recurrent tenosynovial giant cell tumor of the plantar forefoot using the ExAblate 2100 system in combination with patient immobilization device. METHODS Prior to the treatment, several patient immobilization devices were investigated. Vacuum cushions were selected and tested for safety and compatibility with the treatment task and the MR environment. RESULTS During the treatment, one vacuum cushion immobilized the patient's right leg in knee flexion and allowed the bottom of the foot to be securely positioned on the treatment window. Another vacuum cushion supported the patient upper body extended outside the scanner bore. 19 sonications were successfully executed. The treatment was judged to be successful. No immediate complications were observed. CONCLUSIONS MRgFUS treatment of a recurrent tenosynovial giant cell tumor of the right plantar forefoot was successful with the use of patient immobilization vacuum cushions. IMPLICATIONS FOR PRACTICE The immobilization system could be utilized to aid future MRgFUS treatment of lesions in challenging anatomic locations. Various sizes of the vacuum cushions are available to potentially better accommodate other body parts and treatment configurations.
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Affiliation(s)
- Z Long
- Department of Radiology, Mayo Clinic, MN, USA.
| | - G K Hesley
- Department of Radiology, Mayo Clinic, MN, USA
| | - A Lu
- Department of Radiology, Mayo Clinic, MN, USA
| | | | - K R Gorny
- Department of Radiology, Mayo Clinic, MN, USA
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Lin P, Chen W, Long Z, Yu J, Yang J, Xia Z, Wu Q, Min X, Tang J, Cui Y, Liu F, Wang C, Zheng J, Li W, Rich JN, Li L, Xie Q. RBBP6 maintains glioblastoma stem cells through CPSF3-dependent alternative polyadenylation. Cell Discov 2024; 10:32. [PMID: 38503731 PMCID: PMC10951364 DOI: 10.1038/s41421-024-00654-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/29/2024] [Indexed: 03/21/2024] Open
Abstract
Glioblastoma is one of the most lethal malignant cancers, displaying striking intratumor heterogeneity, with glioblastoma stem cells (GSCs) contributing to tumorigenesis and therapeutic resistance. Pharmacologic modulators of ubiquitin ligases and deubiquitinases are under development for cancer and other diseases. Here, we performed parallel in vitro and in vivo CRISPR/Cas9 knockout screens targeting human ubiquitin E3 ligases and deubiquitinases, revealing the E3 ligase RBBP6 as an essential factor for GSC maintenance. Targeting RBBP6 inhibited GSC proliferation and tumor initiation. Mechanistically, RBBP6 mediated K63-linked ubiquitination of Cleavage and Polyadenylation Specific Factor 3 (CPSF3), which stabilized CPSF3 to regulate alternative polyadenylation events. RBBP6 depletion induced shortening of the 3'UTRs of MYC competing-endogenous RNAs to release miR-590-3p from shortened UTRs, thereby decreasing MYC expression. Targeting CPSF3 with a small molecular inhibitor (JTE-607) reduces GSC viability and inhibits in vivo tumor growth. Collectively, RBBP6 maintains high MYC expression in GSCs through regulation of CPSF3-dependent alternative polyadenylation, providing a potential therapeutic paradigm for glioblastoma.
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Affiliation(s)
- Peng Lin
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Wenyan Chen
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, China
| | - Zhilin Long
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Jichuan Yu
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Jiayao Yang
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Zhen Xia
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Qiulian Wu
- University of Pittsburgh Medical Center Hillman Cancer Center, Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xinyu Min
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
| | - Jing Tang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Ya Cui
- Division of Computational Biomedicine, Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Fuyi Liu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chun Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jian Zheng
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei Li
- Division of Computational Biomedicine, Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Jeremy N Rich
- University of Pittsburgh Medical Center Hillman Cancer Center, Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Lei Li
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, China.
| | - Qi Xie
- Westlake Disease Modeling Laboratory, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China.
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Li G, Shi Y, Tay AAO, Long Z. An Investigation on the Most Likely Failure Locations in the BEoL Stack of a 20 nm Chip Due to Chip Package Interaction with the Use of Novel Semi-Elliptical Cracks. Micromachines (Basel) 2023; 14:1953. [PMID: 37893390 PMCID: PMC10609484 DOI: 10.3390/mi14101953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023]
Abstract
The era of 20 nm integrated circuits has arrived. There exist abundant heterogeneous micro/nano structures, with thicknesses ranging from hundreds of nanometers to sub-microns in the IC back end of the line stack, which put stringent demands on the reliability of the device. In this paper, the reliability issues of a 20 nm chip due to chip-package interaction during the reflow process is studied. A representative volume element of the detailed complex BEoL structure has been analyzed to obtain mechanical properties of the BEoL stack by adopting a sub-model analysis. For the first time, semi-elliptical cracks were used in conjunction with J-integral techniques to analyze the failure caused by Chip-to-Package Interaction for a 20 nm chip. The Energy Release Rate(ERR)for cracks at various interfaces and locations in the BEoL stack were calculated to predict the most likely mode and location of failure. We found that the ERR of interfacial cracks at the bottom surface of the interconnects are, on average, more than double those at the sidewalls, which are in turn more than double the number of cracks in the low-k inter-layer dielectric. A total of 500 cycles of thermal shock were conducted, which verified the predictions of the finite element simulations.
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Affiliation(s)
- Ganglong Li
- School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
- School of Mechanical and Electronic Engineering, East China University of Technology, Nanchang 330013, China
| | - Yidian Shi
- School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China;
| | - Andrew A. O. Tay
- Division of Engineering Product Development, Singapore University of Technology and Design, Singapore 487372, Singapore
| | - Zhilin Long
- School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
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Chen Z, Ren H, Zhao Q, Zhou S, Long Z, Liu W. Analysis of the Overpressure Fields in a Shock Tube with Multi-Point Initiation. Sensors (Basel) 2023; 23:4743. [PMID: 37430656 DOI: 10.3390/s23104743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/04/2023] [Accepted: 05/12/2023] [Indexed: 07/12/2023]
Abstract
Shock tubes can carry out dynamic mechanical impact tests on civil engineering structures. The current shock tubes mostly use an explosion with aggregate charge to obtain shock waves. Limited effort has been made to study the overpressure field in shock tubes with multi-point initiation. In this paper, the overpressure fields in a shock tube under the conditions of single-point initiation, multi-point simultaneous initiation, and multi-point delayed initiation have been analyzed by combining experiments and numerical simulations. The numerical results match well with the experimental data, which indicates that the computational model and method used can accurately simulate the blast flow field in a shock tube. For the same charge mass, the peak overpressure at the exit of the shock tube with the multi-point simultaneous initiation is smaller than that with single-point initiation. As the shock waves are focused on the wall, the maximum overpressure on the wall of the explosion chamber near the explosion zone is not reduced. The maximum overpressure on the wall of the explosion chamber can be effectively reduced by a six-point delayed initiation. When the interval time is less than 10 ms, the peak overpressure at the nozzle outlet decreases linearly with the interval of the explosion. When the interval time is greater than 10 ms, the overpressure peak remains unchanged.
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Affiliation(s)
- Zhuo Chen
- School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
- Defense Engineering Institute, Academy of Military Sciences, People's Liberation Army of China, Luoyang 471023, China
| | - Huiqi Ren
- Defense Engineering Institute, Academy of Military Sciences, People's Liberation Army of China, Luoyang 471023, China
| | - Qiang Zhao
- Defense Engineering Institute, Academy of Military Sciences, People's Liberation Army of China, Luoyang 471023, China
| | - Songbai Zhou
- Defense Engineering Institute, Academy of Military Sciences, People's Liberation Army of China, Luoyang 471023, China
| | - Zhilin Long
- College of Civil Engineering, Xiangtan University, Xiangtan 411105, China
| | - Wei Liu
- Defense Engineering Institute, Academy of Military Sciences, People's Liberation Army of China, Luoyang 471023, China
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Nie X, Wu X, Yi Z, Long Z, Zhou H, Ji N. Discussion on Static Resistance of Granite under Penetration. Materials (Basel) 2023; 16:ma16093353. [PMID: 37176236 PMCID: PMC10179759 DOI: 10.3390/ma16093353] [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] [Received: 03/11/2023] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023]
Abstract
A total of 9 tests were carried out with 30 mm and 78 mm caliber scaled projectiles penetrating into granite targets. The penetration depth, crater diameter, and mass loss rate were examined and discussed. The results indicate that the dimensionless penetration depth of large-caliber projectiles is 20% greater than small-caliber projectiles. Based on the description of static resistance Ra in the Forrestal semi-empirical formula, the size effect of dimensionless penetration depth can be attributed to the size effect of static resistance Ra, and it can be seen that the penetration static resistance of projectile A is 40% higher than that of projectile B. Numerical simulations of projectile penetration into granite targets were conducted using the finite element program ANSYS/LS-DYNA. In terms of penetration depth and crater damage, the numerical simulation results agree well with the test data. This suggests that the selection of parameters was reasonable. The influence of compressive strength, projectile striking velocity, mass, diameter, and caliber-radius-head (CRH) ratio on the static resistance Ra were studied by RHT model parameterization. Based on the numerical results from the parametric study, an empirical formula was derived to predict the static resistance Ra.
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Affiliation(s)
- Xiaodong Nie
- School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
| | - Xiangyun Wu
- Institute of National Defense Engineering, Academy of Military Sciences, People's Liberation Army, Luoyang 471023, China
| | - Zhi Yi
- Institute of National Defense Engineering, Academy of Military Sciences, People's Liberation Army, Luoyang 471023, China
| | - Zhilin Long
- School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
| | - Hui Zhou
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mine, Anhui University of Science and Technology, Huainan 232001, China
| | - Nan Ji
- School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China
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Sun C, Wei J, Long Z, Zhao W, Huangfu Q, Xie Q, Wang B, Wen J. Spindle pole body component 24 homolog potentiates tumor progression via regulation of SRY-box transcription factor 2 in clear cell renal cell carcinoma. FASEB J 2022; 36:e22086. [PMID: 35028983 DOI: 10.1096/fj.202101310r] [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: 08/18/2021] [Revised: 11/13/2021] [Accepted: 11/22/2021] [Indexed: 11/11/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common pathological subtype of human kidney cancer with a high probability of metastasis. To understand the molecular processing essential for ccRCC tumorigenicity, we conducted an integrative in silico analysis of The Cancer Genome Atlas (TCGA) ccRCC dataset and clustered randomly interspersed short palindromic repeats (CRISPR) screening dataset of ccRCC cell lines from Depmap. We identified spindle pole body component 24 homolog (SPC24) as an essential gene for ccRCC cell lines with prognostic significance in the TCGA database. Targeting SPC24 by CRISPR/Cas9-mediated gene knockout attenuated ccRCC proliferation, metastasis, and in vivo tumor growth. Furthermore, we found that SPC24 regulates metastasis genes expression in a SRY-box transcription factor 2 (SOX2)-dependent manner. The anti-proliferative effects of SPC24 knockout were strengthened with SOX2 knockdown. Collectively, our findings suggest SPC24 has a pivotal function in promoting ccRCC progression, providing a new insight for the treatment of ccRCC.
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Affiliation(s)
- Chengfang Sun
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jingchao Wei
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhilin Long
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Weixi Zhao
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Qi Huangfu
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qi Xie
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Bohan Wang
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiaming Wen
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Long Z, Liu W, Qi JL, Liu YN, Liu JM, You JL, Lin L, Wang LJ, Zhou MG, Yin P. [Mortality trend of chronic respiratory diseases in China, 1990-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:14-21. [PMID: 35130647 DOI: 10.3760/cma.j.cn112338-20210601-00443] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze mortality and its trend of chronic respiratory diseases (CRD) in China from 1990 to 2019. Methods: Based on the provincial results of China from the 2019 Global Burden of Disease (GBD) study, the average annual percent change (AAPC) of standardized mortality rates of different CRDs were analyzed by using Joinpoint 4.8.0.1, and the age-standardized mortality rate of CRD was calculated by using the GBD 2019 world standard population. Based on the comparative risk assessment theory of GBD, the attributable deaths due to 12 CRD risk factors were estimated, including smoking, indoor air pollution, occupational gas exposure, particulates and smog exposure, environmental particulate pollution, low temperature, passive smoking, ozone pollution, occupational exposure to silica, occupational asthma, high body mass index, high temperature and occupational exposure to asbestos. Results: From 1990 to 2019, the number of deaths and standardized mortality of chronic obstructive pulmonary disease (COPD) showed a downward trend (P<0.001). The number of COPD deaths decreased from 1 244 000 (912 000 - 1 395 000) in 1990 to 1 037 000 (889 000 - 1 266 000) in 2019. AAPC=-0.9% (95%CI: -1.5% - -0.3%), P<0.001; The standardized mortality rate decreased from 217.9/100 000 (163.3/100 000 - 242.0/100 000) in 1990 to 65.2/100 000 (55.5/100 000 - 80.1/100 000) in 2019. AAPC= -4.2% (95%CI:-5.2% - -3.2%), P<0.001. The number of deaths from asthma decreased from 40 000 (30 000 - 58 000) in 1990 to 25 000 (20 000 - 31 000) in 2019. AAPC=-2.0% (95%CI: -2.6% - -1.4%), P<0.001; The standardized mortality rate of asthma decreased from 6.4/100 000 (4.7/100 000 - 9.5/100 000) in 1990 to 1.5/100 000 (1.2/100 000 - 1.9/100 000) in 2019. AAPC=-5.1% (95%CI: -5.8% - -4.4%), P<0.001. The number of pneumoconiosis deaths decreased from 11 000 (8 000 - 14 000) in 1990 to 10 000 (8 000 - 14 000) in 2019, AAPC=-0.2%(95%CI:-0.4% - 0.1%), P=0.200; The standardized mortality rate of pneumoconiosis decreased from 1.4/100 000 (1.0/100 000 - 1.7/100 000) in 1990 to 0.5/100 000 (0.4/100 000 - 0.7/100 000) in 2019. AAPC=-3.1% (95%CI: -3.4% - -2.8%), P<0.001. The number of deaths from pulmonary interstitial diseases and pulmonary sarcoidosis increased from 3 000 (3 000 - 6 000) in 1990 to 8 000 (6 000 - 10 000) in 2019, AAPC=3.5% (95%CI: 2.7% - 4.2%), P<0.001; The corresponding standardized mortality rate changed little from 1990 to 2019, and AAPC was not statistically significant.The age-standardized mortality rates of different CRDs were higher in men than those in women. In 1990 and 2019, the mortality rates of COPD, asthma, pneumoconiosis and interstitial pulmonary disease and pulmonary sarcoidosis increased with age. In 2019, the population attributable fractions (PAFs) for smoking, environmental particulate pollution, occupational gas exposure, particulate and smog exposure, low temperature exposure and passive smoking were 71.1% (68.0% - 74.3%), 24.7% (20.1% - 30.0%), 19.3% (13.0% - 25.4%), 15.7% (13.6% - 18.3%) and 8.8% (4.5% - 13.1%) respectively in men, and the PAFs for environmental particulate pollution, smoking, low temperature exposure, occupational gas exposure, particulate and smog exposure, and passive smoking were 24.1% (19.6% - 29.3%), 21.9% (18.7% - 25.2%), 16.4% (14.0% - 19.2%), 15.6% (10.2% - 21.1%) and 14.7% (7.9% - 21.3%) respectively in women. Conclusions: During 1990-2019, the overall death level of CRD decreased significantly in China, but it is still at high level in the world. Active prevention and control measures should be taken to reduce the death level caused by CRD.
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Affiliation(s)
- Z Long
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - W Liu
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J L Qi
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y N Liu
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J M Liu
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J L You
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Lin
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L J Wang
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - M G Zhou
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - P Yin
- Division of Vital Registration and Death Cause Surveillance, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Ning Y, Roberts NJ, Qi J, Peng Z, Long Z, Zhou S, Gu J, Hou Z, Yang E, Ren Y, Lang J, Liang Z, Zhang M, Ma J, Jiang G. Inbreeding status and implications for Amur tigers. Anim Conserv 2021. [DOI: 10.1111/acv.12761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Ning
- College of Life Science Jilin Agricultural University Changchun China
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - N. J. Roberts
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - J. Qi
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
- School of Forestry Northeast Forestry University Harbin China
| | - Z. Peng
- School of Basic Medical Sciences Nanchang University Nanchang China
| | - Z. Long
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - S. Zhou
- Heilongjiang Research Institute of Wildlife Harbin China
| | - J. Gu
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - Z. Hou
- College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - E. Yang
- Wildlife Conservation Society Hunchun China
| | - Y. Ren
- Wildlife Conservation Society Hunchun China
| | - J. Lang
- Jilin Hunchun Amur Tiger National Nature Reserve Hunchun China
| | - Z. Liang
- Heilongjiang Laoyeling Amur Tiger National Nature Reserve Dongning China
| | - M. Zhang
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - J. Ma
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - G. Jiang
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
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Lu Q, Liu J, Zhao S, Gomez Castro MF, Laurent-Rolle M, Dong J, Ran X, Damani-Yokota P, Tang H, Karakousi T, Son J, Kaczmarek ME, Zhang Z, Yeung ST, McCune BT, Chen RE, Tang F, Ren X, Chen X, Hsu JCC, Teplova M, Huang B, Deng H, Long Z, Mudianto T, Jin S, Lin P, Du J, Zang R, Su TT, Herrera A, Zhou M, Yan R, Cui J, Zhu J, Zhou Q, Wang T, Ma J, Koralov SB, Zhang Z, Aifantis I, Segal LN, Diamond MS, Khanna KM, Stapleford KA, Cresswell P, Liu Y, Ding S, Xie Q, Wang J. SARS-CoV-2 exacerbates proinflammatory responses in myeloid cells through C-type lectin receptors and Tweety family member 2. Immunity 2021; 54:1304-1319.e9. [PMID: 34048708 PMCID: PMC8106883 DOI: 10.1016/j.immuni.2021.05.006] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/12/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023]
Abstract
Despite mounting evidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) engagement with immune cells, most express little, if any, of the canonical receptor of SARS-CoV-2, angiotensin-converting enzyme 2 (ACE2). Here, using a myeloid cell receptor-focused ectopic expression screen, we identified several C-type lectins (DC-SIGN, L-SIGN, LSECtin, ASGR1, and CLEC10A) and Tweety family member 2 (TTYH2) as glycan-dependent binding partners of the SARS-CoV-2 spike. Except for TTYH2, these molecules primarily interacted with spike via regions outside of the receptor-binding domain. Single-cell RNA sequencing analysis of pulmonary cells from individuals with coronavirus disease 2019 (COVID-19) indicated predominant expression of these molecules on myeloid cells. Although these receptors do not support active replication of SARS-CoV-2, their engagement with the virus induced robust proinflammatory responses in myeloid cells that correlated with COVID-19 severity. We also generated a bispecific anti-spike nanobody that not only blocked ACE2-mediated infection but also the myeloid receptor-mediated proinflammatory responses. Our findings suggest that SARS-CoV-2-myeloid receptor interactions promote immune hyperactivation, which represents potential targets for COVID-19 therapy.
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Affiliation(s)
- Qiao Lu
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Jia Liu
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Shuai Zhao
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | | | - Maudry Laurent-Rolle
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | | | - Xiaojuan Ran
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Payal Damani-Yokota
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Hongzhen Tang
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Triantafyllia Karakousi
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Juhee Son
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Maria E Kaczmarek
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ze Zhang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Stephen T Yeung
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Broc T McCune
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Rita E Chen
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Fei Tang
- BIOPIC, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Peking University, Beijing 100871, China
| | - Xianwen Ren
- BIOPIC, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Peking University, Beijing 100871, China
| | - Xufeng Chen
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Jack C C Hsu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Marianna Teplova
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | | | - Haijing Deng
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Zhilin Long
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Tenny Mudianto
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Shumin Jin
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Peng Lin
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Jasper Du
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ruochen Zang
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Tina Tianjiao Su
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Alberto Herrera
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ming Zhou
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Renhong Yan
- Joint Research Center of Hangzhou First Hospital Group and Westlake University, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Jia Cui
- Kactus Biosystems Co., Ltd., Shanghai 201114, China
| | - James Zhu
- Quantitative Biomedical Research Center, Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Qiang Zhou
- Joint Research Center of Hangzhou First Hospital Group and Westlake University, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China
| | - Tao Wang
- Quantitative Biomedical Research Center, Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jianzhu Ma
- Department of Computer Science, Purdue University, West Lafayette, IN 47907, USA
| | - Sergei B Koralov
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Zemin Zhang
- BIOPIC, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Peking University, Beijing 100871, China
| | - Iannis Aifantis
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Leopoldo N Segal
- Division of Pulmonary and Critical Care Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Michael S Diamond
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Kamal M Khanna
- The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA; Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Kenneth A Stapleford
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Peter Cresswell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Yue Liu
- Ab Studio, Inc., Hayward, CA 94545, USA
| | - Siyuan Ding
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
| | - Qi Xie
- Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Diseases Research, Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China; Institute of Basics Medical Sciences, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, Hangzhou, Zhejiang Province 310024, China.
| | - Jun Wang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; The Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA.
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10
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Sun S, Xu L, Zhang X, Pang L, Long Z, Deng C, Zhu J, Zhou S, Wan L, Pang B, Xiao Y. Systematic Assessment of Transcriptomic Biomarkers for Immune Checkpoint Blockade Response in Cancer Immunotherapy. Cancers (Basel) 2021; 13:cancers13071639. [PMID: 33915876 PMCID: PMC8037221 DOI: 10.3390/cancers13071639] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/13/2021] [Accepted: 03/26/2021] [Indexed: 12/31/2022] Open
Abstract
Simple Summary The aim of our study was to evaluate the predictive performance of transcriptomic biomarkers to immune response. The study collected 22 transcriptomic biomarkers and constructed multiple benchmark datasets to evaluate their predictive performance of immune checkpoint blockade (ICB) response in pre-treatment patients with distinct ICB agents in diverse cancers. We found “Immune-checkpoint molecule” biomarkers PD-L1, PD-L2, CTLA-4 and IMPRES and the “Effector molecule” biomarker CYT showed significant associations with ICB response and clinical outcomes. These immune-checkpoint biomarkers and another immune effector IFN-gamma presented predictive ability in melanoma, urothelial cancer and clear cell renal-cell cancer. Interestingly, for anti-PD-1 therapy and anti-CTLA-4 therapy, the top-performing response biomarkers were usually mutually exclusive even though in the same biomarker category and most of biomarkers with outstanding predictive power were observed in patients with combined anti-PD-1 and anti-CTLA-4 therapy. Abstract Background: Immune checkpoint blockade (ICB) therapy has yielded successful clinical responses in treatment of a minority of patients in certain cancer types. Substantial efforts were made to establish biomarkers for predicting responsiveness to ICB. However, the systematic assessment of these ICB response biomarkers remains insufficient. Methods: We collected 22 transcriptome-based biomarkers for ICB response and constructed multiple benchmark datasets to evaluate the associations with clinical response, predictive performance, and clinical efficacy of them in pre-treatment patients with distinct ICB agents in diverse cancers. Results: Overall, “Immune-checkpoint molecule” biomarkers PD-L1, PD-L2, CTLA-4 and IMPRES and the “Effector molecule” biomarker CYT showed significant associations with ICB response and clinical outcomes. These immune-checkpoint biomarkers and another immune effector IFN-gamma presented predictive ability in melanoma, urothelial cancer (UC) and clear cell renal-cell cancer (ccRCC). In non-small cell lung cancer (NSCLC), only PD-L2 and CTLA-4 showed preferable correlation with clinical response. Under different ICB therapies, the top-performing biomarkers were usually mutually exclusive in patients with anti-PD-1 and anti-CTLA-4 therapy, and most of biomarkers presented outstanding predictive power in patients with combined anti-PD-1 and anti-CTLA-4 therapy. Conclusions: Our results show these biomarkers had different performance in predicting ICB response across distinct ICB agents in diverse cancers.
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Affiliation(s)
- Shangqin Sun
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Liwen Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Xinxin Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Lin Pang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Zhilin Long
- School of Life Sciences, Westlake University, Hangzhou 310024, China;
| | - Chunyu Deng
- Wenzhou Research Institute, University of Chinese Academy of Science, Wenzhou 325001, China;
| | - Jiali Zhu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Shuting Zhou
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Linyun Wan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
| | - Bo Pang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
- Correspondence: (B.P.); (Y.X.)
| | - Yun Xiao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China; (S.S.); (L.X.); (X.Z.); (L.P.); (J.Z.); (S.Z.); (L.W.)
- Correspondence: (B.P.); (Y.X.)
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11
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Yang Y, Long Z, Zhong Z, Liu Q, Yang X. Construction and Evaluation of Gastric Cancer Risk Prediction Model. Indian J Pharm Sci 2021. [DOI: 10.36468/pharmaceutical-sciences.spl.340] [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: 11/22/2022] Open
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12
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Wang R, Liang X, Long Z, Wang X, Yang L, Lu B, Gao J. An LCI-like protein APC 2 protects ginseng root from Fusarium solani infection. J Appl Microbiol 2020; 130:165-178. [PMID: 32639629 DOI: 10.1111/jam.14771] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/25/2020] [Accepted: 07/02/2020] [Indexed: 11/29/2022]
Abstract
AIMS We aimed to purify an antimicrobial protein from Bacillus amyloliquefaciens FS6 culture supernatant, verify its antimicrobial activity against Fusarium solani and evaluate its biocontrol potential for ginseng root rot. METHODS AND RESULTS The antimicrobial protein was purified from FS6 culture supernatant using ammonium sulphate precipitation, anion exchange and gel chromatography. Based on mass spectrometry results, the purified protein was identified as an antimicrobial protein of the LCI family and was designated APC2 . The APC2 recombinant protein expressed in Escherichia coli (BL21) significantly inhibited F. solani and decreased the infection and spread of F. solani in ginseng root. An overexpressing APC2 strain FS6-APC2 was constructed and shown to have enhanced antimicrobial activity compared to the wild-type strain FS6. CONCLUSIONS The APC2 protein shows strong antimicrobial activity against F. solani, reduces the incidence and severity of ginseng root rot caused by F. solani and exhibits a great biocontrol potential. SIGNIFICANCE AND IMPACT OF THE STUDY This study reports the inhibitory activity of APC2 protein (LCI family) against F. solani and its protective efficacy on ginseng root rot. These findings provide a scientific basis for future research on the biocontrol mechanism, as well as the development and application of FS6.
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Affiliation(s)
- R Wang
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - X Liang
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - Z Long
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - X Wang
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - L Yang
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - B Lu
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - J Gao
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
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13
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Yuan H, Yan M, Zhang G, Liu W, Deng C, Liao G, Xu L, Luo T, Yan H, Long Z, Shi A, Zhao T, Xiao Y, Li X. CancerSEA: a cancer single-cell state atlas. Nucleic Acids Res 2020; 47:D900-D908. [PMID: 30329142 PMCID: PMC6324047 DOI: 10.1093/nar/gky939] [Citation(s) in RCA: 386] [Impact Index Per Article: 96.5] [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: 08/14/2018] [Accepted: 10/08/2018] [Indexed: 12/12/2022] Open
Abstract
High functional heterogeneity of cancer cells poses a major challenge for cancer research. Single-cell sequencing technology provides an unprecedented opportunity to decipher diverse functional states of cancer cells at single-cell resolution, and cancer scRNA-seq datasets have been largely accumulated. This emphasizes the urgent need to build a dedicated resource to decode the functional states of cancer single cells. Here, we developed CancerSEA (http://biocc.hrbmu.edu.cn/CancerSEA/ or http://202.97.205.69/CancerSEA/), the first dedicated database that aims to comprehensively explore distinct functional states of cancer cells at the single-cell level. CancerSEA portrays a cancer single-cell functional state atlas, involving 14 functional states (including stemness, invasion, metastasis, proliferation, EMT, angiogenesis, apoptosis, cell cycle, differentiation, DNA damage, DNA repair, hypoxia, inflammation and quiescence) of 41 900 cancer single cells from 25 cancer types. It allows querying which functional states are associated with the gene (or gene list) of interest in different cancers. CancerSEA also provides functional state-associated PCG/lncRNA repertoires across all cancers, in specific cancers, and in individual cancer single-cell datasets. In summary, CancerSEA provides a user-friendly interface for comprehensively searching, browsing, visualizing and downloading functional state activity profiles of tens of thousands of cancer single cells and the corresponding PCGs/lncRNAs expression profiles.
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Affiliation(s)
- Huating Yuan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Min Yan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Guanxiong Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Wei Liu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Chunyu Deng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Gaoming Liao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Liwen Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Tao Luo
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Haoteng Yan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Zhilin Long
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Aiai Shi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Tingting Zhao
- Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yun Xiao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Xia Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
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14
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Zhang Y, Liao G, Bai J, Zhang X, Xu L, Deng C, Yan M, Xie A, Luo T, Long Z, Xiao Y, Li X. Identifying Cancer Driver lncRNAs Bridged by Functional Effectors through Integrating Multi-omics Data in Human Cancers. Mol Ther Nucleic Acids 2019; 17:362-373. [PMID: 31302496 PMCID: PMC6626872 DOI: 10.1016/j.omtn.2019.05.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/23/2019] [Accepted: 05/15/2019] [Indexed: 01/18/2023]
Abstract
The accumulation of somatic driver mutations in the human genome enables cells to gradually acquire a growth advantage and contributes to tumor development. Great efforts on protein-coding cancer drivers have yielded fruitful discoveries and clinical applications. However, investigations on cancer drivers in non-coding regions, especially long non-coding RNAs (lncRNAs), are extremely scarce due to the limitation of functional understanding. Thus, to identify driver lncRNAs integrating multi-omics data in human cancers, we proposed a computational framework, DriverLncNet, which dissected the functional impact of somatic copy number alteration (CNA) of lncRNAs on regulatory networks and captured key functional effectors in dys-regulatory networks. Applying it to 5 cancer types from The Cancer Genome Atlas (TCGA), we portrayed the landscape of 117 driver lncRNAs and revealed their associated cancer hallmarks through their functional effectors. Moreover, lncRNA RP11-571M6.8 was detected to be highly associated with immunotherapeutic targets (PD-1, PD-L1, and CTLA-4) and regulatory T cell infiltration level and their markers (IL2RA and FCGR2B) in glioblastoma multiforme, highlighting its immunosuppressive function. Meanwhile, a high expression of RP11-1020A11.1 in bladder carcinoma was predictive of poor survival independent of clinical characteristics, and CTD-2256P15.2 in lung adenocarcinoma responded to the sensitivity of methyl ethyl ketone (MEK) inhibitors. In summary, this study provided a framework to decipher the mechanisms of tumorigenesis from driver lncRNA level, established a new landscape of driver lncRNAs in human cancers, and offered potential clinical implications for precision oncology.
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Affiliation(s)
- Yong Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Gaoming Liao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Jing Bai
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Xinxin Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Liwen Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Chunyu Deng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Min Yan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Aimin Xie
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Tao Luo
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Zhilin Long
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Yun Xiao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China; Key Laboratory of Cardiovascular Medicine Research, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang 150086, China.
| | - Xia Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150086, China; Key Laboratory of Cardiovascular Medicine Research, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang 150086, China.
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15
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Hua X, Chen L, Zhu Q, Hu W, Lin C, Long Z, Wen W, Sun X, Lu Z, Chen Q, Luo D, Sun R, Mo H, Tang L, Zhang W, He Z, Mai H, Lin H, Guo L. Efficacy of controlled-release oxycodone for reducing pain due to oral mucositis in nasopharyngeal carcinoma patients treated with concurrent chemoradiotherapy: A prospective clinical trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy438.006] [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: 11/14/2022] Open
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16
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Lin H, Hua X, Long Z, Zhang W, Lin C, Sun X, Wen W, Lu Z, Guo N, He Z, Song L, Guo L. IQGAP3 overexpression correlates with poor prognosis and radiation therapy resistance in breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy427.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Xu J, Shi A, Long Z, Xu L, Liao G, Deng C, Yan M, Xie A, Luo T, Huang J, Xiao Y, Li X. Capturing functional long non-coding RNAs through integrating large-scale causal relations from gene perturbation experiments. EBioMedicine 2018; 35:369-380. [PMID: 30177244 PMCID: PMC6156711 DOI: 10.1016/j.ebiom.2018.08.050] [Citation(s) in RCA: 16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/15/2018] [Accepted: 08/22/2018] [Indexed: 02/06/2023] Open
Abstract
Characterizing functions of long noncoding RNAs (lncRNAs) remains a major challenge, mostly due to the lack of lncRNA-involved regulatory relationships. A wide array of genome-wide expression profiles generated by gene perturbation have been widely used to capture causal links between perturbed genes and response genes. Through annotating >600 gene perturbation profiles, over 354,000 causal relationships between perturbed genes and lncRNAs were identified. This large-scale resource of causal relations inspired us to develop a novel computational approach LnCAR for inferring lncRNAs' functions, which showed a higher accuracy than the co-expression based approach. By application of LnCAR to the cancer hallmark processes, we identified 38 lncRNAs involved in distinct carcinogenic processes. The "activating invasion & metastasis" related lncRNAs were strongly associated with metastatic progression in various cancer types and could act as a predictor of cancer metastasis. Meanwhile, the "evading immune destruction" related lncRNAs showed significant associations with immune infiltration of various immune cells and, importantly, can predict response to anti-PD-1 immunotherapy, suggesting their potential roles as biomarkers for immune therapy. Taken together, our approach provides a novel way to systematically reveal functions of lncRNAs, which will be helpful for further experimental exploration and clinical translational research of lncRNAs.
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Affiliation(s)
- Jinyuan Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Aiai Shi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Zhilin Long
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Liwen Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Gaoming Liao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Chunyu Deng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Min Yan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Aiming Xie
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Tao Luo
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Jian Huang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Yun Xiao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China; Key Laboratory of Cardiovascular Medicine Research, Harbin Medical University, Harbin, Heilongjiang 150086, China.
| | - Xia Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, China; Key Laboratory of Cardiovascular Medicine Research, Harbin Medical University, Harbin, Heilongjiang 150086, China.
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18
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Xu L, Deng C, Pang B, Zhang X, Liu W, Liao G, Yuan H, Cheng P, Li F, Long Z, Yan M, Zhao T, Xiao Y, Li X. TIP: A Web Server for Resolving Tumor Immunophenotype Profiling. Cancer Res 2018; 78:6575-6580. [DOI: 10.1158/0008-5472.can-18-0689] [Citation(s) in RCA: 340] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/20/2018] [Accepted: 08/20/2018] [Indexed: 11/16/2022]
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Abstract
Hyponatremia is a potentially serious electrolyte abnormality observed in neuromyelitis optica spectrum disorders (NMOSDs), and its most common cause is syndrome of inappropriate antidiuretic hormone secretion (SIADH). Another potential cause of hyponatremia is cerebral salt-wasting syndrome (CSWS), although CSWS has not previously been reported in NMOSDs. Accurate and early differentiation between SIADH and CSWS is difficult. However, the two conditions have important implications for the selection of therapy. Here, we describe two patients with aquaporin-4 antibody (AQP4-Ab)-positive NMOSDs who developed hyponatremia as a result of CSWS and SIADH, respectively. Additionally, we review all previously reported studies of hyponatremia in patients with NMOSDs and propose several potential pathophysiological mechanisms of hyponatremia. In conclusion, NMOSDs accompanied by hyponatremia are not actually rare, but have previously been given little attention. Furthermore, SIADH should not be the only consideration, before the exclusion of rare but significant CSWS.
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Affiliation(s)
- S. Jin
- Department of Neurology; The Second Xiangya Hospital; Central South University; Changsha China
| | - Z. Long
- Department of Neurology; The Second Xiangya Hospital; Central South University; Changsha China
| | - W. Wang
- Department of Neurology; The Second Xiangya Hospital; Central South University; Changsha China
| | - B. Jiang
- Department of Neurology; The Second Xiangya Hospital; Central South University; Changsha China
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20
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Tang LF, Qin G, Yang YC, Gan LR, Wang Y, Long Z. [Therapeutic effect of two kinds of surgical treatment for chronic dacryocystitis: external dacryocystorhinostomy and endoscopic dacryocystorhinostomy]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1029-1031. [PMID: 29798171 DOI: 10.13201/j.issn.1001-1781.2017.13.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Indexed: 11/12/2022]
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21
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Du Y, Han B, Long Z, Chen M, Hou B, Feng F. Observation of Magnetic Resonance Imaging Monitoring in Patients with Low/INT-1 Risk Myelodysplastic Syndromes or Aplastic Anemia Complicated with Iron Overload. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30403-4] [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: 11/24/2022]
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22
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Long Z, Tradup D, Song P, Stekel S, Chen S, Hangiandreou N. TU-H-206-09: Acceptance Testing of Ultrasound Systems for Shear Wave Elastography Measurements. Med Phys 2016. [DOI: 10.1118/1.4957654] [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: 11/07/2022] Open
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24
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Li H, Yang T, Long Z, Cheng J. Effect of mitochondrial ATP-sensitive potassium channel opening on the translocation of protein kinase C epsilon in adult rat ventricular myocytes. Genet Mol Res 2014; 13:4516-22. [PMID: 25036356 DOI: 10.4238/2014.june.17.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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 effects of mitochondrial ATP-sensitive potassium (MitoKATP) channel opening on the translocation of protein kinase C epsilon (PKCε). In addition, we aimed to determine the relationship between PKCε translocation and the production of reactive oxygen species (ROS). PKCε protein expression in cultured adult rat ventricular myocytes was investigated by immunofluorescence and Western blotting. Diazoxide (DZ), a selective MitoKATP channel activator, caused a significant translocation to myofibrillar-like structures in cultured adult rat ventricular myocytes. N-2-Mercaptopropionylglycine, a free radical scavenger, could partially inhibit the translocation of PKCε induced by DZ. By contrast, chelerythrine, a selective PKC inhibitor, could completely block the translocation of PKCε induced by DZ. The opening of MitoKATP channels might activate and cause PKCε to translocate into myofibrillar-like structures. PKCε activation occurred downstream of the MitoKATP channel, possibly as a result of ROS production that occurred after the MitoKATP channels opened.
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Affiliation(s)
- H Li
- Department of Anesthesiology, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
| | - T Yang
- Department of Anesthesiology, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
| | - Z Long
- Department of Anesthesiology, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
| | - J Cheng
- Department of Anesthesiology, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
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25
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Abstract
Aims: To report the technique and outcomes of sutureless manual cataract extraction via a subconjunctival limbus oblique incision for mature cataracts. Materials and Methods: This retrospective study comprised of 112 eyes of 83 patients with mature cataract who all had manual cataract extraction via a subconjunctival limbus oblique incision. A transconjunctival tunnel is fashioned with a 3.0 mm keratome, 0.5 mm behind the limbal vascular arcades. A limbal tunnel, with a transverse extent of 9 mm in the cornea and 7.0 mm in the limbus, is created beneath the conjunctival/Tenon's tissue using an angled bevel-up crescent blade. Outcome measures included visual acuity, intraoperative complications, surgically induced astigmatism, endothelial cell loss rate and surgery time. Results: Self-sealing wound was achieved in 112 eyes (98.2%). The nucleus was delivered in whole in 108 eyes (96.4%). Intraoperative complications included hyphema in 3 eyes (2.7%), iridodialysis in 2 eyes 1.8%), posterior capsular rupture and zonular dialysis in 2 eyes (1.8%). At the 3-month follow-up, 91% patients achieved a best-corrected visual acuity of 20/20 or better, the mean of surgically induced astigmatism was -0.62 ± 0.41 Diopters and endothelial cell loss was 4.2%. Average surgical time was 3.75 min per case. Conclusion: This subconjunctival limbus oblique incision has the potential to serve as safe and effective technique for mature cataracts.
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Affiliation(s)
| | - P Lai
- Jiangxi Eye Center, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi Province, China
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Chen C, Lin CH, Long Z, Chen Q. Predicting transient particle transport in enclosed environments with the combined computational fluid dynamics and Markov chain method. Indoor Air 2014; 24:81-92. [PMID: 23789964 DOI: 10.1111/ina.12056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 06/16/2013] [Indexed: 05/05/2023]
Abstract
To quickly obtain information about airborne infectious disease transmission in enclosed environments is critical in reducing the infection risk to the occupants. This study developed a combined computational fluid dynamics (CFD) and Markov chain method for quickly predicting transient particle transport in enclosed environments. The method first calculated a transition probability matrix using CFD simulations. Next, the Markov chain technique was applied to calculate the transient particle concentration distributions. This investigation used three cases, particle transport in an isothermal clean room, an office with an underfloor air distribution system, and the first-class cabin of an MD-82 airliner, to validate the combined CFD and Markov chain method. The general trends of the particle concentrations vs. time predicted by the Markov chain method agreed with the CFD simulations for these cases. The proposed Markov chain method can provide faster-than-real-time information about particle transport in enclosed environments. Furthermore, for a fixed airflow field, when the source location is changed, the Markov chain method can be used to avoid recalculation of the particle transport equation and thus reduce computing costs.
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Affiliation(s)
- C Chen
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
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27
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Li Q, Li G, Wang Y, Long Z, Liu X, Zhang Z. Lymph Node Status as Predictive Factor for Selective Adjuvant Chemoradiation in Patients With Locally Advanced Gastric Cancer With D2 Dissection. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.785] [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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Liu X, Xu Y, Long Z, Zhu H, Wang Y. The prognostic significance of apoptosis-related biological markers in Chinese gastric cancer patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.108] [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
108 Background: The prognosis varied among the patients with the same stage, therefore there was a need for new prognostic and predictive factors. The aim of this study was to evaluate the relationship of apoptosis-related biological markers such as P21, P27, P53, Bcl-2, Bax, and c-myc, and clinicopathological features and their prognostic value. Methods: From January 1996 to December 2007, 4,426 patients had undergone gastrectomy for gastric cancer at Fudan University Shanghai Cancer Center. Among 501 patients, the expression levels of P21, P27, P53, Bcl-2, Bax, and c-myc were examined by immunohistochemistry. The prognostic value of biological markers and the correlation between biological markers and other clinicopathological factors were investigated. Results: There were 339 males and 162 females (2.09:1) with a mean age of 57. The percentages of positive expression of P21, P27, P53, Bcl-2, Bax, and c-myc were 73%, 25%, 65%, 22%, 43%, and 58%, respectively. There was a strong correlation between P21, P53, Bax, and c-myc expression (p = 0.00). There was significant association between P27, Bcl-2, and Bax expression (p < 0.05). The P21 expression correlated with male (p = 0.00), histological grade (p = 0.00), Borrmann type (p = 0.02), tumor location (p = 0.01); the P53 expression with histological grade (p = 0.01); Bcl-2 expression with pathological stage (p = 0.01); Bax expression with male (p = 0.02), histological grade (p = 0.01), Borrmann type (p = 0.01), tumor location (p = 0.00), lymph node metastasis (p = 0.03), pathological stage (p = 0.01); c-myc expression with Borrmann type (p = 0.00). Bcl-2 expression was related with good survival in univariate analysis (p = 0.01). Multivariate analysis showed that Bcl-2 expression and pathological stage were defined as independent prognostic factors for gastric cancers. There was significant differences of overall 5-year survival rates according to Bcl-2 expression or not in stage III (p = 0.00). Conclusions: The expressionof Bcl-2 was an independent prognostic factor for Chinese patients with gastric cancer; it might be a candidate for the gastric cancer staging system. No significant financial relationships to disclose.
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Affiliation(s)
- X. Liu
- Department of Abdominal Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan, Shanghai, China
| | - Y. Xu
- Department of Abdominal Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan, Shanghai, China
| | - Z. Long
- Department of Abdominal Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan, Shanghai, China
| | - H. Zhu
- Department of Abdominal Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan, Shanghai, China
| | - Y. Wang
- Department of Abdominal Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan, Shanghai, China
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Ding Y, Jiang Y, Xu F, Yin J, Ren H, Zhuo Q, Long Z, Zhang P. Preparation of nano-structured LiFePO4/graphene composites by co-precipitation method. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2009.10.023] [Citation(s) in RCA: 251] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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30
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Long Z, Perrie W, Gyakum J, Laprise R, Caya D. Scenario changes in the climatology of winter midlatitude cyclone activity over eastern North America and the Northwest Atlantic. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010869] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Ding Y, Zhang P, Long Z, Jiang Y, Xu F, Di W. The ionic conductivity and mechanical property of electrospun P(VdF-HFP)/PMMA membranes for lithium ion batteries. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2008.12.024] [Citation(s) in RCA: 145] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Xia J, Zheng D, Tang D, Dai H, Pan Q, Long Z, Liao X. Cloning, mapping and mutation analysis of human geneGJB5 encoding gap junction protein beta-5. Sci China C Life Sci 2008; 44:92-8. [PMID: 18763093 DOI: 10.1007/bf02882077] [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: 03/10/2000] [Indexed: 10/22/2022]
Abstract
By homologous EST searching and nested PCR a new human geneGJB5 encoding gap junction protein beta-5 was identified.GJB5 was genetically mapped to human chromosome 1p33-p35 by FISH. RT-PCR revealed that it was expressed in skin, placenta and fetal skin. DNA sequencing ofGJB5 was carried out in 142 patients with sensorineural hearing impairment and probands of 36 families with genetic diseases, including erythrokeratodermia (5 families), Charcot-Marie-Tooth disease (13), ptosis (4), and retinitis pigmentosa and deafness (14). Two missense mutations (686A-->G, H229R; 25C-->T, L9F) were detected in two sensorineural hearing impairment families. A heterologous deletion of 18 bp within intron was found in 3 families with heredity hearing impairment, and in one of the 3 families, a missense mutation (R265P) was identified also. But the deletion and missense mutation seemed not segregating with hearing impairment in the family. No abnormal mRNA or mRNA expression was detected in deletion carriers by RT-PCR analysis in skin tissue. Mutation analysis in 199 unaffected individuals revealed that two of them were carriers with the same 18 bp deletion.
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Affiliation(s)
- J Xia
- Hunan Medical University, State Key Laboratory of Medical Genetics, 410078, Changsha, China
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Ding Y, Zhang P, Long Z, Jiang Y, Xu F, Di W. Preparation of PV dF-based electrospun membranes and their application as separators. Sci Technol Adv Mater 2008; 9:015005. [PMID: 27877942 PMCID: PMC5099811 DOI: 10.1088/1468-6996/9/1/015005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Revised: 03/13/2008] [Accepted: 12/24/2007] [Indexed: 05/30/2023]
Abstract
A one-step method preparing of poly(vinylidene fluoride)-based electrospun membranes (PEMs) containing TiO2 has been developed. The effect of TiO2 on the morphology, degree of crystallization and electrochemical behavior of PEMs was investigated by scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimetry (DSC) and electrochemical measurements. The PEMs containing TiO2 show improved ionic conductivity and cycling performance compared with pure PEMs.
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Affiliation(s)
- Yanhuai Ding
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
- Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
| | - Ping Zhang
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
- Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
| | - Zhilin Long
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
- Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
| | - Yong Jiang
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
- Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
| | - Fu Xu
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
- Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
| | - Wei Di
- College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China
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Liu X, Liu M, Xue Z, Pan Q, Wu L, Long Z, Xia K, Liang D, Xia J. Non-viral ex vivo transduction of human hepatocyte cells to express factor VIII using a human ribosomal DNA-targeting vector. J Thromb Haemost 2007; 5:347-51. [PMID: 17155951 DOI: 10.1111/j.1538-7836.2007.02355.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND In gene therapy, one of the most important issues is the choice of the vectors. pHrneo is a human-derived vector previously constructed by our group, which can target a foreign gene into a human ribosomal DNA (hrDNA) locus. METHODS AND RESULTS In this study, we inserted an expression cassette of reconstructive hFVIII (hFVIII-BDDAK39) to pHrneo to construct a targeting vector: pHrneo-BDDAK39. Through electroporation of pHrneo-BDDAK39 into HL7702 cells (human hepatocyte), we identified the homologous recombinants using polymerase chain reaction, and tested the expression of hFVIII-BDDAK39 located at the hrDNA locus. The hFVIII-BDDAK39 was successfully targeted into the hrDNA locus of HL7702 by pHrneo-BDDAK39, and the efficiency of site-specific integration was 1.1 x 10(-5). The hFVIII-BDDAK39 at the hrDNA locus of HL7702 was found to be able to express efficiently (4.3 +/- 0.9 ng 10(-6) cells 24 h(-1)). CONCLUSION It has been indicated that the targeting vector pHrneo-BDDAK39 can be used in gene therapy for hemophilia A.
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Affiliation(s)
- X Liu
- National Laboratory of Medical Genetics of China, Xiangya Hospital, Central South University, Changsha, China
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Xia K, Wu L, Liu X, Xi X, Liang D, Zheng D, Cai F, Pan Q, Long Z, Dai H, Hu Z, Tang B, Zhang Z, Xia J. Mutation in PITX2 is associated with ring dermoid of the cornea. J Med Genet 2004; 41:e129. [PMID: 15591271 PMCID: PMC1735645 DOI: 10.1136/jmg.2004.022434] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- K Xia
- National Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan, China.
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Lin X, Tang Y, Long Z. [Effects of vitamin A and iron supplementation on the improvement of iron status and immunological function in preschool children]. Zhonghua Yu Fang Yi Xue Za Zhi 2001; 35:374-7. [PMID: 11840762] [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: 02/23/2023]
Abstract
OBJECTIVE In order to understand the changes in immunological function in rural preschool children with lower levels of vitamin A and iron, and the effect of vitamin A and iron supplementation on the improvement of iron status and immunological function. METHODS Serum vitamin A concentration and hemoglobin (Hb), serum iron (SI), transferrin saturation (TS), serum ferritin (SF) were determined in 270 rural preschool children aged 3-7 years in Beijing, and the subjects were divided into four groups based on their determinations: control, lower serum vitamin A, lower iron, and both lower iron and serum vitamin A. Forty subjects were selected from each group, and serum IgA, IgG, IgM and interleukin-2 (IL-2) were determined for them. Forty-one subjects who had lower iron and lower serum vitamin A (< 1.12 mumol/L) were divided into two groups: one of them supplemented with 30 mg iron element (ferrous sulfate 0.15 g) once a day for 8 weeks, and the other group supplemented with iron and 12,500 IU vitamin A twice a week for 8 weeks. After supplementation of vitamin A and iron, their serum vitamin A, hematological iron index and serum immunological index were determined again for the two groups. RESULTS Serum IgM were (1,260 +/- 310) mg/L in both lower iron and serum vitamin A groups, significantly higher than that in normal group (1,070 +/- 170) mg/L (P < 0.05). But there were no significant differences in serum levels of IgG, IgA and IL-2. After supplementation of iron and vitamin A, their serum TS increased to (26.5 +/- 8.6)%, significantly higher than that before supplementation and that supplemented with iron only (22.3 +/- 3.8)%. And, their serum IL-2 were (278.9 +/- 117.7) ng/L after supplementation, significantly higher than that before supplementation (161.6 +/- 90.3) ng/L and that in those supplemented with iron only (189.5 +/- 89.3) ng/L. There was no significant difference in other biochemical indices of iron and immunological indices. CONCLUSIONS Supplementation with vitamin A and iron was helpful to improve body iron nutritional status and immunological function obviously in preschool children with iron-deficiency and sub-clinical deficiency of vitamin A.
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Affiliation(s)
- X Lin
- Faculty of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China
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Long Z, Nimura N, Adachi M, Sekine M, Hanai T, Kubo H, Homma H. Determination of D- and L-aspartate in cell culturing medium, within cells of MPT1 cell line and in rat blood by a column-switching high-performance liquid chromatogrpahic method. J Chromatogr B Biomed Sci Appl 2001; 761:99-106. [PMID: 11585137 DOI: 10.1016/s0378-4347(01)00311-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HPLC fluorometric methods have been used to analyze trace amounts of D-amino acids in biological samples. In this study, we established an expedient column-switching fluorometric HPLC system that would improve the analysis of D-amino acids, in particular D-aspartate (Asp). Our system consists of the fluorogenic derivatization of amino acids with NBD-F and two chromatographic steps, one that separates individual amino acids in reverse phase mode and another that separates the chiral forms of each amino acid in normal-phase mode. The two separation steps are linked through a trapping column by an automated column-switching system. In addition, sample preparation is simplified and improved, where trichloroacetic acid is used for deproteinization, and borate buffer, pH 9.5 is employed for the fluorescent derivatization. The detection limit for D-Asp in culturing medium is 5 nM. The resulting peak heights correlated well with concentrations that ranged from 12.5 to 250 nM for both D- and L-Asp. The present method was applied to determine D- and L-Asp levels in cell culturing medium, and within cells of MPT1 cell line. The detected cellular levels of D- and L-Asp agree with those detected by our previous method. In addition, this method was used to measure D- and L-Asp levels in rat blood samples, and the results are consistent with the reported values.
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Affiliation(s)
- Z Long
- School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan
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38
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Lin X, Long Z, Shen X. [Changes of serum transferrin receptor in children with iron deficiency and its response to iron supplementation]. Zhonghua Yu Fang Yi Xue Za Zhi 2001; 35:325-8. [PMID: 11769633] [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: 02/23/2023]
Abstract
OBJECTIVES To study the level of serum transferrin receptor (sTfR) in children with different stages of iron deficiency, as well as in the normal children, to observe its response to iron supplementation, and to explore the role of sTfR in surveillance of iron status and assessment of iron supplementation in population. METHODS By determining iron status index, 1,006 children aged 6-14 years in Fangshan District, Beijing were divided into four groups, control group, iron depletion (ID) group, iron deficiency erythropoiesis (IDE) group and iron deficiency anemia (IDA) group, and 239 of them were measured for sTfR with Quintikine enzyme immunoassay (R&D system, Minneapolis, MN) and sTfR/logserum ferratin (SF) was estimated. Iron supplementation (NaFeEDTA capsules, containing 60 mg iron element per capsule) was administered for the children with ID and IDE per capsule once weekly and for the children with IDA per capsule thrice weekly for nine weeks. Iron status index and sTfR were measured before and after iron supplementation. RESULTS The levels of sTfR and sTfR/log SF in children with ID, IDE and IDA were (20.03 +/- 2.33) nmol/L, (24.52 +/- 1.07) nmol/L, (33.28 +/- 6.09) nmol/L and (18.15 +/- 5.31), (20.98 +/- 8.88), (29.08 +/- 8.57), respectively, significantly higher than those in the control group [sTfR(18.74 +/- 3.06) nmol/L and sTfR/log SF(9.89 +/- 1.74)]. Statistical analysis showed that sTfR correlated to free erythrocyte protoporphyrin and hemoglobin. sTfR levels in normal children was (12.5-23.5) nmol/L. After iron supplementation, sTfR levels in children with ID was (16.37 +/- 3.10) nmol/L, significantly decreased than those before iron supplementation, but no change in sTfR was observed in children with IDE and IDA. sTfR/log SF were decreased significantly in all children with ID group(11.42 +/- 3.12), IDE (16.54 +/- 4.70) and IDA (23.59 +/- 9.93). CONCLUSION sTfR is a specific indicator for identifying IDE and IDA, and sTfR/log SF is a sensitive index for assessing the effects of iron supplementation.
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Affiliation(s)
- X Lin
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China
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Lin X, Shen X, Long Z, Yang Q. [Effects of cactus, alove veral, momorcica charantia on reducing the blood glucose of diabetic mice]. Wei Sheng Yan Jiu 2001; 30:203-5. [PMID: 12561513] [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: 02/28/2023]
Abstract
The effects of cactus, alove veral and momorcica charantia on reducing the blood glucose level of mice were observed. The diabetic model with no symptom in mice was established by injection of streptozotocin(STZ) 80 mg/kg BW into abdominal cavity for 11 days. The diabetic mice were randomly divided into 8 groups: STZ diabetic model, diet A, diet B, cactus, alove veral, momordica charantia and glyburide groups. Cactus (60 g/kg BW), alove veral (60 g/kg BW), and momordica charantia (30 g/kg BW) were administrated orally each day to the diabetic mice for another 21 days. Serum glucose of mice fasting for 12 hours and 2 hours after meal was determined with the method of glucose-oxidase at the 21th day of the experiment. The results showed that serum glucose levels of diabetic mice were significantly higher than the normal control group (P < 0.01). After giving diet A, cactus, alove veral and momorcica charantia juice for 21 days, the serum glucose concentration of these diabetic mice were significantly lower than STZ diabetic model group (P < 0.01) but still higher than the normal control group.
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Affiliation(s)
- X Lin
- Department of Nutrition & Food Hygiene, School of Public Health, Peking University, Beijing 100083, China
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Long Z, Lee JA, Okamoto T, Sekine M, Nimura N, Imai K, Yohda M, Maruyama T, Sumi M, Kamo N, Yamagishi A, Oshima T, Homma H. Occurrence of D-Amino Acids and a pyridoxal 5'-phosphate-dependent aspartate racemase in the acidothermophilic archaeon, Thermoplasma acidophilum. Biochem Biophys Res Commun 2001; 281:317-21. [PMID: 11181048 DOI: 10.1006/bbrc.2001.4353] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Free D-amino acid content in some archaea was investigated and D-forms of several amino acids were found in them. In the acidothermophilic archaeon, Thermoplasma acidophilum, the proportion of D-aspartate (D-Asp) to total Asp was as high as 39.7%. Crude extracts of Thermoplasma acidophilum had Asp-specific racemase activity that was pyridoxal 5'-phosphate (PLP)-dependent. The relative insensitivity to a SH-modifying reagent distinguished this activity from those of the PLP-independent Asp racemases found in other hyperthermophilic archaea (Matsumoto, M., et al., J. Bacteriol. 181, 6560-6563 1999). Thus, high levels of d-Asp should be produced by a new type(s) of Asp-specific racemase in Thermoplasma acidophilum, although the function of d-Asp in this archaeon remains unknown.
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Affiliation(s)
- Z Long
- School of Pharmaceutical Sciences, Kitasato University, Minato-ku, Tokyo 108-8641, Japan
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41
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Lee JA, Long Z, Nimura N, Iwatsubo T, Imai K, Homma H. Localization, Transport, and Uptake of -Aspartate in the Rat Adrenal and Pituitary Glands. Arch Biochem Biophys 2001; 385:242-9. [PMID: 11368004 DOI: 10.1006/abbi.2000.2163] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Large amounts of D-aspartate (D-Asp) are present in the rat adrenal and pituitary glands. D-Asp is thought to be synthesized in the mammalian body and also accumulates in various tissues following intraperitoneal or intravenous administration. This report examines the origins of D-Asp in the adrenal and pituitary glands. We administered D-Asp to male rats intraperitoneally and immunolocalized this exogenous D-Asp in adrenal and pituitary tissue, using an anti-D-Asp antiserum which was previously developed in our laboratory. D-Asp levels in the rat adrenal gland have been shown to undergo a transient increase at 3 weeks of age and to decrease rapidly thereafter. We found that in the adrenal gland, exogenous D-Asp administered intraperitoneally was incorporated into the same region of the adrenal cortex in which endogenous D-Asp was present. By Northern and Western blot analysis and immunohistochemistry of glutamate (Glu) transporter, we also found that expression of the Glu transporter (GLAST), which has an affinity for D-Asp, transiently increased at 3 weeks of age and that localization patterns of the Glu transporter within the tissue were almost coincident with those of endogenous D-Asp. These observations suggest that D-Asp in the adrenal cortex of 3-week-old male rats is primarily acquired by uptake from the vascular system. We have previously shown that D-Asp is specifically localized in prolactin (PRL)-containing cells in the anterior lobe of the adult rat pituitary gland. Here we report that in the pituitary gland, exogenous D-Asp accumulated in endothelial cells, but not in PRL-containing cells. Northern and Western blot analysis and immunohistochemistry of Glu transporter revealed that developmental changes in the Glu transporter (GLAST) expression did not correlate with tissue levels of D-Asp and that the Glu transporter was not expressed in PRL-containing cells. These observations suggest that, in contrast to the adrenal gland, most of the D-Asp in the pituitary gland of adult male rats originates inside the gland itself.
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Affiliation(s)
- J A Lee
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan
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42
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Powell SK, Gates ME, Langford G, Gu ML, Lockey C, Long Z, Otto E. Antiretroviral agents inhibit infection of human cells by porcine endogenous retroviruses. Antimicrob Agents Chemother 2000; 44:3432-3. [PMID: 11083652 PMCID: PMC90217 DOI: 10.1128/aac.44.12.3432-3433.2000] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The efficacy of antiretroviral drugs against porcine endogenous retroviruses (PERV) that may be harbored in pig organs intended for transplantation was examined in human cells in vitro. The nucleoside analogs zidovudine and dideoxyinosine were found to effectively inhibit PERV replication.
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Affiliation(s)
- S K Powell
- Genetic Therapy, Inc., a Novartis Company, Gaithersburg, Maryland 20878, USA
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43
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Long Z, Lee JA, Okamoto T, Nimura N, Imai K, Homma H. d-Aspartate in a prolactin-secreting clonal strain of rat pituitary tumor cells (GH(3)). Biochem Biophys Res Commun 2000; 276:1143-7. [PMID: 11027602 DOI: 10.1006/bbrc.2000.3573] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
d-Aspartate (d-Asp) is found in prolactin (PRL)-containing cells of the rat anterior pituitary gland [Lee et al., Brain Res. 838, 193-199, 1999]. In order to determine whether d-Asp is actually produced by the anterior pituitary gland and whether it plays a physiological role in PRL function, a PRL-secreting clonal strain of rat pituitary tumor cells (GH(3)) was employed in this study. HPLC analysis and immunocytochemical staining detected the presence and synthesis of d-Asp in the cytoplasm of these cells. In addition, thyrotropin-releasing hormone-stimulated PRL secretion was increased in a dose-dependent fashion by d-Asp from these cells. These results suggest that the anterior pituitary gland synthesizes d-Asp and that d-Asp acts as a messenger in this gland.
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Affiliation(s)
- Z Long
- Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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van der Laan LJ, Lockey C, Griffeth BC, Frasier FS, Wilson CA, Onions DE, Hering BJ, Long Z, Otto E, Torbett BE, Salomon DR. Infection by porcine endogenous retrovirus after islet xenotransplantation in SCID mice. Nature 2000; 407:90-4. [PMID: 10993079 DOI: 10.1038/35024089] [Citation(s) in RCA: 304] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Animal donors such as pigs could provide an alternative source of organs for transplantation. However, the promise of xenotransplantation is offset by the possible public health risk of a cross-species infection. All pigs contain several copies of porcine endogenous retroviruses (PERV), and at least three variants of PERV can infect human cell lines in vitro in co-culture, infectivity and pseudotyping experiments. Thus, if xenotransplantation of pig tissues results in PERV viral replication, there is a risk of spreading and adaptation of this retrovirus to the human host. C-type retroviruses related to PERV are associated with malignancies of haematopoietic lineage cells in their natural hosts. Here we show that pig pancreatic islets produce PERV and can infect human cells in culture. After transplantation into NOD/SCID (non-obese diabetic, severe combined immunodeficiency) mice, we detect ongoing viral expression and several tissue compartments become infected. This is the first evidence that PERV is transcriptionally active and infectious cross-species in vivo after transplantation of pig tissues. These results show that a concern for PERV infection risk associated with pig islet xenotransplantation in immunosuppressed human patients may be justified.
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Affiliation(s)
- L J van der Laan
- The Scripps Research Institute, Department of Molecular and Experimental Medicine, La Jolla, California 92037, USA
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Xu J, Yu Q, Wu S, Gao Z, Long Z, Qiao S. [A clinicopathological study of mediastinal lymph node metastasis of lung cancer]. Zhongguo Fei Ai Za Zhi 2000; 3:288-90. [PMID: 20955679 DOI: 10.3779/j.issn.1009-3419.2000.04.13] [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
BACKGROUND To investigate the characteristics of mediastinal lymph node metastasis of lung cancer from a view of pathology. METHODS Radical pulmonectomy or lobectomy combined with extensive dissection of mediastinal lymph node was carrived out in 398 patients with lung cancr. N2 disease was diagnozed in 160 cases, and total 352 groups of mediastinal lymph node invaded were analyzed. RESULTS N2 disease appeared as single group, multi-groups and jumping-form groups, comprising 41.2%,58.8% and 29.3% respectively. The highest metastatic site of lymph node was group 7 mediastinal lymph node, the followings were group 4, 3 and 5 lymph nodes, comprising 45.6%, 31.3% and 25.6% respectively. The N2 metastasis was highly correlated with the site, size, histological classification and cell differentiation of the cancer. An another characteristic of N2 metastasis was that the metastatic lymph node could invaded into the bronchial wall, especially in adenocarcinoma. CONCLUSIONS It is necessary to dissect the lymph nodes of the hilar and upper and lower mediastinum at the homolateral thoracic cavity extensively and completely. Attention should be paid to the bronchial wall invasion by the metastatic lymph nodes, too.
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Affiliation(s)
- J Xu
- Department of Thoracic Surgery, Henan Cancer Hospital, Zhengzhou, Henan 450003, P . R. China
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46
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Matsumoto M, Homma H, Long Z, Imai K, Iida T, Maruyama T, Aikawa Y, Endo I, Yohda M. Occurrence of free D-amino acids and aspartate racemases in hyperthermophilic archaea. J Bacteriol 1999; 181:6560-3. [PMID: 10515953 PMCID: PMC103798 DOI: 10.1128/jb.181.20.6560-6563.1999] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The occurrence of free D-amino acids and aspartate racemases in several hyperthermophilic archaea was investigated. Aspartic acid in all the hyperthermophilic archaea was highly racemized. The ratio of D-aspartic acid to total aspartic acid was in the range of 43.0 to 49.1%. The crude extracts of the hyperthermophiles exhibited aspartate racemase activity at 70 degrees C, and aspartate racemase homologous genes in them were identified by PCR. D-Enantiomers of other amino acids (alanine, leucine, phenylalanine, and lysine) in Thermococcus strains were also detected. Some of them might be by-products of aspartate racemase. It is proven that D-amino acids are produced in some hyperthermophilic archaea, although their function is unknown.
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Affiliation(s)
- M Matsumoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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47
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Shand N, Weber F, Mariani L, Bernstein M, Gianella-Borradori A, Long Z, Sorensen AG, Barbier N. A phase 1-2 clinical trial of gene therapy for recurrent glioblastoma multiforme by tumor transduction with the herpes simplex thymidine kinase gene followed by ganciclovir. GLI328 European-Canadian Study Group. Hum Gene Ther 1999; 10:2325-35. [PMID: 10515452 DOI: 10.1089/10430349950016979] [Citation(s) in RCA: 169] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study has investigated the effects of herpes simplex thymidine kinase gene (HSV-tk) transfer followed by ganciclovir treatment as adjuvant gene therapy to surgical resection in patients with recurrent glioblastoma multiforme (GBM). The study was open and single-arm, and aimed at assessing the feasibility and safety of the technique and indications of antitumor activity. In 48 patients a suspension of retroviral vector-producing cells (VPCs) was administered by intracerebral injection immediately after tumor resection. Intravenous ganciclovir was infused daily 14 to 27 days after surgery. Patients were monitored for adverse events and for life by regular biosafety assaying. Tumor changes were monitored by magnetic resonance imaging (MRI). Reflux during injection was a frequent occurrence but serious adverse events during the treatment period (days 1-27) were few and of a nature not unexpected in this population. One patient experienced transient neurological disorders associated with postganciclovir MRI enhancement. There was no evidence of replication-competent retrovirus in peripheral blood leukocytes or in tissue samples of reresection or autopsy. Vector DNA was shown in the leukocytes of some patients but not in autopsy gonadal samples. The median survival time was 8.6 months, and the 12-month survival rate was 13 of 48 (27%). On MRI studies, tumor recurrence was absent in seven patients for at least 6 months and for at least 12 months in two patients, one of whom remains recurrence free at more than 24 months. Treatment-characteristic images of injection tracks and intracavity hemoglobin were apparent. In conclusion, the gene therapy is feasible and appears to be satisfactorily safe as an adjuvant to the surgical resection of recurrent GBM, but any benefit appears to be marginal. Investigation of the precise effectiveness of this gene therapy requires prospective, controlled studies.
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Affiliation(s)
- N Shand
- Oncology Clinical Research, Novartis Pharma, Basel, Switzerland.
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Powell SK, Kaloss M, Burimski I, Weaver L, Long Z, Lyons R, McGarrity GJ, Otto E. In vitro analysis of transformation potential associated with retroviral vector insertions. Hum Gene Ther 1999; 10:2123-32. [PMID: 10498244 DOI: 10.1089/10430349950017112] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
While replication-defective retroviral vectors provide excellent vehicles for the long-term expression of therapeutic genes, they also harbor the potential to induce undesired genetic changes by random insertions into the host genome. The rate of insertional mutagenesis for retroviral vectors has been determined in several different assay systems; however, the rate at which such events induce cellular transformation has not been directly determined. Such measurements are critical to determining the actual risk of carcinogenesis resulting from retroviral gene therapy. In this study, the ability of a replication-defective retroviral vector, GlnBgSvNa, to induce cellular transformation in the BALB/c-3T3 in vitro transformation assay was assessed. The transformation frequency observed in vector-transduced BALB/c-3T3 cells, which contained one to six copies of integrated provirus, was not significantly different from that of untreated control cells. The finding that GlnBgSvNa was nontransforming in this assay indicates that the rate of transformation induced by retroviral insertions is less than the spontaneous rate of cellular transformation by BALB/c-3T3 cells, or less than 1.1 x 10(-5). These results are the first to define an upper limit for the rate of transformation induced by retroviral vectors.
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Affiliation(s)
- S K Powell
- Genetic Therapy, Inc., a Novartis Company, Gaithersburg, MD 20878, USA
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Paradis K, Langford G, Long Z, Heneine W, Sandstrom P, Switzer WM, Chapman LE, Lockey C, Onions D, Otto E. Search for cross-species transmission of porcine endogenous retrovirus in patients treated with living pig tissue. The XEN 111 Study Group. Science 1999; 285:1236-41. [PMID: 10455044 DOI: 10.1126/science.285.5431.1236] [Citation(s) in RCA: 579] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Pig organs may offer a solution to the shortage of human donor organs for transplantation, but concerns remain about possible cross-species transmission of porcine endogenous retrovirus (PERV). Samples were collected from 160 patients who had been treated with various living pig tissues up to 12 years earlier. Reverse transcription-polymerase chain reaction (RT-PCR) and protein immunoblot analyses were performed on serum from all 160 patients. No viremia was detected in any patient. Peripheral blood mononuclear cells from 159 of the patients were analyzed by PCR using PERV-specific primers. No PERV infection was detected in any of the patients from whom sufficient DNA was extracted to allow complete PCR analysis (97 percent of the patients). Persistent microchimerism (presence of donor cells in the recipient) was observed in 23 patients for up to 8.5 years.
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Affiliation(s)
- K Paradis
- Imutran Ltd. (a Novartis Pharma AG company), Post Office Box 399, Cambridge CB2 2YP, UK.
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Kaloss M, Linscott M, Wey C, Lu P, Long Z, McGarrity GJ, Otto E, Lyons RM. Distribution of retroviral vectors and vector producer cells using two routes of administration in rats. Gene Ther 1999; 6:1389-96. [PMID: 10467363 DOI: 10.1038/sj.gt.3300983] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The clinical use of retroviral vector producer cells (VPCs) to deliver retroviral vectors efficiently to target cells has been investigated as a method to increase efficiency of gene delivery, presumably as a result of continued vector production in vivo. Studies were conducted in rats to evaluate the distribution of vector to distal organs and tissues as measured by transduction. Rats were treated with two doses of VPCs using two routes of administration: (1) subcutaneous injection, chosen to maximize both the dose and exposure of animals, thereby enabling identification of potential target organs under worst-case conditions; and (2) direct injection into brain parenchyma, chosen to mimic the intended clinical route of administration and provide an estimate of risk to patients receiving this therapy. Twelve organs or tissues were collected 7 days after administration of VPCs and analyzed by PCR for the presence of vector and vector producer cell sequences. Vector was detected most frequently at the site of injection by either route of administration. Less frequently, vector was detected in draining lymph nodes at the higher dose only using either route of injection. Single specimens of lung and contralateral skin were positive for vector following subcutaneous administration only. Vector was detected in gonadal tissue from a single low-dose male following subcutaneous administration, but this finding was not reproduced in any high-dose male or any males injected intracerebrally. In contrast, VPCs were detected only at the site of administration. The frequency of detection of VPCs 7 days after administration was higher when rats were injected by the intracerebral route. Based on these studies, gene transfer to distal organs or gonadal tissue following intracerebral administration of VPCs is not considered to be a risk to patients undergoing retroviral vector gene therapy for the treatment of brain cancer (glioblastoma multiforme; GBM).
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Affiliation(s)
- M Kaloss
- Genetic Therapy, Inc, 938 Clopper Road, Gaithersburg, MD 20878, USA
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