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Niu S, Ao L, Gao Y, Zhou F, He W, Tao J, Guo S, Wang B, Ai X, Li H, Ma X, Zhang X, Huang J, Zhang X. Suitability of the MP1000 Platform for Robot-assisted Prostatectomy: A Prospective Randomised Controlled Trial. EUR UROL SUPPL 2024; 64:2-8. [PMID: 38694878 PMCID: PMC11058071 DOI: 10.1016/j.euros.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2024] [Indexed: 05/04/2024] Open
Abstract
Background and objective Robot-assisted radical prostatectomy (RARP) is widely used because of the many advantages of a robotic approach. The da Vinci Si robot is one of the most commonly used surgical robot systems, but it may be associated with higher costs owing to the use of consumable surgical supplies. Our aim was to conduct a preliminary investigation of the capability of the MP1000 system for RARP. Methods In this prospective, multicentre, single-blinded study, we randomly assigned 42 patients scheduled to undergo RARP between April and September 2021 to a da Vinci Si group (control) or an MP1000 group (intervention). Patients underwent RARP performed using the assigned robotic system and were followed up at 3-mo intervals. The primary outcome was the rate of conversion to open/laparoscopic surgery. Secondary outcomes were installation and operation times, intraoperative blood loss, postoperative surgical margin status, hospital stay, incontinence, complications, safety indicators, and surgeon ergonomics. Key findings and limitations All procedures were successfully completed without conversion to open/laparascopic surgery or major complications. Secondary outcomes, including oncological and ergonomic indicators, did not differ significantly between the groups over the study period. One patient in the control group experienced dysuria (Clavien-Dindo grade 3). No patients had incontinence at 3 mo. A limitation of the study is the small sample size. Conclusions and clinical implications RARP with the MP1000 system is feasible, safe, and effective in the management of localised prostate cancer. Patient summary We assessed the effectiveness and safety of the new MP1000 robot system for robot-assisted removal of the prostate in comparison to the da Vinci Si robot. We found no difference in effectiveness or safety among 42 patients with prostate cancer who were assigned randomly to one of the two systems. We conclude that the MP1000 is a suitable robot for this surgery.
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Affiliation(s)
- Shaoxi Niu
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Liyan Ao
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
- Graduate School of Chinese PLA Medical School, Beijing, China
| | - Yu Gao
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Fangjian Zhou
- Department of Urology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Wang He
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jin Tao
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shengjie Guo
- Department of Urology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Baojun Wang
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Xing Ai
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Hongzhao Li
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Xin Ma
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
| | - Xuepei Zhang
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jian Huang
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xu Zhang
- Department of Urology, Third Medical Centre, Chinese PLA General Hospital, Beijing 100039, China
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Niu S, Tang S, Huang S, Liang L, Li S, Liu H. [Low-dose CT reconstruction based on high-dimensional partial differential equation projection recovery]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:682-688. [PMID: 38708501 DOI: 10.12122/j.issn.1673-4254.2024.04.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE We propose a low-dose CT reconstruction method using partial differential equation (PDE) denoising under high-dimensional constraints. METHODS The projection data were mapped into a high-dimensional space to construct a high-dimensional representation of the data, which were updated by moving the points in the high-dimensional space. The data were denoised using partial differential equations and the CT image was reconstructed using the FBP algorithm. RESULTS Compared with those by FBP, PWLS-QM and TGV-WLS methods, the relative root mean square error of the Shepp-Logan image reconstructed by the proposed method were reduced by 68.87%, 50.15% and 27.36%, the structural similarity values were increased by 23.50%, 8.83% and 1.62%, and the feature similarity values were increased by 17.30%, 2.71% and 2.82%, respectively. For clinical image reconstruction, the proposed method, as compared with FBP, PWLS-QM and TGV-WLS methods, resulted in reduction of the relative root mean square error by 42.09%, 31.04% and 21.93%, increased the structural similarity values by 18.33%, 13.45% and 4.63%, and increased the feature similarity values by 3.13%, 1.46% and 1.10%, respectively. CONCLUSION The new method can effectively reduce the streak artifacts and noises while maintaining the spatial resolution in reconstructed low-dose CT images.
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Affiliation(s)
- S Niu
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
- Ganzhou Key Laboratory of Computational Imaging, Gannan Normal University, Ganzhou 341000, China
| | - S Tang
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
| | - S Huang
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
| | - L Liang
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
| | - S Li
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
| | - H Liu
- School of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China
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Wang Y, Xuan Y, Su B, Gao Y, Fan Y, Huang Q, Zhang P, Gu L, Niu S, Shen D, Li X, Wang B, Zhu Q, Ouyang Z, Xie J, Ma X. Predicting recurrence and survival in patients with non-metastatic renal-cell carcinoma after nephrectomy: a prospective population-based study with multicenter validation. Int J Surg 2024; 110:820-831. [PMID: 38016139 PMCID: PMC10871562 DOI: 10.1097/js9.0000000000000935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/09/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Accurate prognostication of oncological outcomes is crucial for the optimal management of patients with renal cell carcinoma (RCC) after surgery. Previous prediction models were developed mainly based on retrospective data in the Western populations, and their predicting accuracy remains limited in contemporary, prospective validation. We aimed to develop contemporary RCC prognostic models for recurrence and overall survival (OS) using prospective population-based patient cohorts and compare their performance with existing, mostly utilized ones. METHODS In this prospective analysis and external validation study, the development set included 11 128 consecutive patients with non-metastatic RCC treated at a tertiary urology center in China between 2006 and 2022, and the validation set included 853 patients treated at 13 medical centers in the USA between 1996 and 2013. The primary outcome was progression-free survival (PFS), and the secondary outcome was OS. Multivariable Cox regression was used for variable selection and model development. Model performance was assessed by discrimination [Harrell's C-index and time-dependent areas under the curve (AUC)] and calibration (calibration plots). Models were validated internally by bootstrapping and externally by examining their performance in the validation set. The predictive accuracy of the models was compared with validated models commonly used in clinical trial designs and with recently developed models without extensive validation. RESULTS Of the 11 128 patients included in the development set, 633 PFS and 588 OS events occurred over a median follow-up of 4.3 years [interquartile range (IQR) 1.7-7.8]. Six common clinicopathologic variables (tumor necrosis, size, grade, thrombus, nodal involvement, and perinephric or renal sinus fat invasion) were included in each model. The models demonstrated similar C-indices in the development set (0.790 [95% CI 0.773-0.806] for PFS and 0.793 [95% CI 0.773-0.811] for OS) and in the external validation set (0.773 [0.731-0.816] and 0.723 [0.731-0.816]). A relatively stable predictive ability of the models was observed in the development set (PFS: time-dependent AUC 0.832 at 1 year to 0.760 at 9 years; OS: 0.828 at 1 year to 0.794 at 9 years). The models were well calibrated and their predictions correlated with the observed outcome at 3, 5, and 7 years in both development and validation sets. In comparison to existing prognostic models, the present models showed superior performance, as indicated by C-indices ranging from 0.722 to 0.755 (all P <0.0001) for PFS and from 0.680 to 0.744 (all P <0.0001) for OS. The predictive accuracy of the current models was robust in patients with clear-cell and non-clear-cell RCC. CONCLUSIONS Based on a prospective population-based patient cohort, the newly developed prognostic models were externally validated and outperformed the currently available models for predicting recurrence and survival in patients with non-metastatic RCC after surgery. The current models have the potential to aid in clinical trial design and facilitate clinical decision-making for both clear-cell and non-clear-cell RCC patients at varying risk of recurrence and survival.
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Affiliation(s)
- Yunhe Wang
- Nuffield Department of Population Health
| | - Yundong Xuan
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Binbin Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences/Peking Union Medical College
| | - Yu Gao
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Yang Fan
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Qingbo Huang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Peng Zhang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Liangyou Gu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Shaoxi Niu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Donglai Shen
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Xiubin Li
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Baojun Wang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
| | - Quan Zhu
- Department of Urology, Xiangya Hospital, Central South University, Hunan, People’s Republic of China
| | - Zhengxiao Ouyang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan
| | - Junqing Xie
- Centre for Statistics in Medicine and NIHR Biomedical Research Centre Oxford, NDORMS, University of Oxford, Oxford, United Kingdom
| | - Xin Ma
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing
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Yang Q, Li Q, Li N, Wang D, Niu S, Tang P, Xiao J, Zhao J, Wang P, Luo Y, Tang J. Radiotranscriptomics identified new mRNAs and miRNA markers for distinguishing prostate cancer from benign prostatic hyperplasia. Cancer Med 2023; 12:21694-21708. [PMID: 37987209 PMCID: PMC10757143 DOI: 10.1002/cam4.6728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023] Open
Abstract
The present study investigated ultrasound (US) phenotypes reflecting prostate cancer (PCa)-related genetic mutations. Herein, integration of radiotranscriptomic data, US and contrast-enhanced ultrasound (CEUS) radiomic images, and RNA sequencing was performed with the aim of significantly improving the accuracy of PCa prognosis. We performed radiotranscriptomic analysis of clinical, imaging, and two genomic (mRNA and microRNA expression) datasets from 48 and 22 men with PCa and benign prostatic hyperplasia (BPH), respectively. Twenty-three US texture features and four microvascular perfusion features were associated with various patterns of 52 differentially expressed genes related to PCa (p < 0.05); 17 overexpressed genes were associated with two key texture features. Twelve overexpressed genes were identified using microvascular perfusion features. Furthermore, mRNA and miRNA biomarkers could be used to distinguish between PCa and BPH. Compared with RNA sequencing, B-mode and CEUS features reflected genomic alterations associated with hormone receptor status, angiogenesis, and prognosis in patients with PCa. These findings indicate the potential of US to assess biomarker levels in patients with PCa.
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Affiliation(s)
- Qian Yang
- Department of Ultrasound, Air Force Medical CenterPLA, Air Force Military Medical UniversityBeijingChina
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Qiuyang Li
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Nan Li
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Dingyi Wang
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Shaoxi Niu
- Department of Urology, First Medical CenterChinese PLA General HospitalBeijingChina
| | - Peng Tang
- Department of Orthopedics, China Rehabilitation Research CenterBeijing Charity HospitalBeijingChina
| | - Jing Xiao
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Jiahang Zhao
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Pei Wang
- Department of Ultrasound Diagnosis and Treatment CenterXi'an International Medical Center HospitalXianChina
| | - Yukun Luo
- Department of Ultrasound, Air Force Medical CenterPLA, Air Force Military Medical UniversityBeijingChina
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
| | - Jie Tang
- Department of UltrasoundFirst Medical Center, Chinese PLA General HospitalBeijingChina
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Rong ZH, Ni L, Zhang R, Niu S, Li FS, Liu CW. [Research progress on the role of non-coding RNA in the functional regulation of vascular smooth muscle cells]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:535-541. [PMID: 37198127 DOI: 10.3760/cma.j.cn112148-20230310-00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Affiliation(s)
- Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - R Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - S Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - F S Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Zhou J, Qiao ML, Jahejo AR, Han XY, Wang P, Wang Y, Ren JL, Niu S, Zhao YJ, Zhang D, Bi YH, Wang QH, Si LL, Fan RW, Shang GJ, Tian WX. Effect of Avian Influenza Virus subtype H9N2 on the expression of complement-associated genes in chicken erythrocytes. Br Poult Sci 2023:1-9. [PMID: 36939295 DOI: 10.1080/00071668.2023.2191308] [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] [Indexed: 03/21/2023]
Abstract
The H9N2 subtype avian influenza virus can infect both chickens and humans. Previous studies have reported a role for erythrocytes in immunity. However, the role of H9N2 against chicken erythrocytes and the presence of complement-related genes in erythrocytes has not been studied. This research investigated the effect of H9N2 on complement-associated gene expression in chicken erythrocytes. The expression of complement-associated genes (C1s, C1q, C2, C3, C3ar1, C4, C4a, C5, C5ar1, C7, CD93 and CFD) was detected by reverse transcription-polymerase chain reaction (RT-PCR). Quantitative Real-Time PCR (qRT-PCR) was used to analyse the differential expression of complement-associated genes in chicken erythrocytes at 0 h, 2 h, 6 h and 10 h after the interaction between H9N2 virus and chicken erythrocytes in vitro and 3, 7 and 14 d after H9N2 virus nasal infection of chicks. Expression levels of C1q, C4, C1s, C2, C3, C5, C7 and CD93 were significantly up-regulated at 2 h and significantly down-regulated at 10 h. Gene expression levels of C1q, C3ar1, C4a, CFD and C5ar1 were seen to be different at each time point. The expression levels of C1q, C4, C1s, C2, C3, C5, C7, CFD, C3ar1, C4a and C5ar1 were significantly up-regulated at 7 d and the gene expression of levels of C3, CD93 and C5ar1 were seen to be different at each time point. The results confirmed that all the complement-associated genes were expressed in chicken erythrocytes and showed the H9N2 virus interaction with chicken erythrocytes and subsequent regulation of chicken erythrocyte complement-associated genes expression. This study reported, for the first time, the relationship between H9N2 and complement system of chicken erythrocytes, which will provide a foundation for further research into the prevention and control of H9N2 infection.
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Affiliation(s)
- J Zhou
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - M L Qiao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - A R Jahejo
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - X Y Han
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - P Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Y Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - J L Ren
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - S Niu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Y J Zhao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - D Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Y H Bi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, Institute of Microbiology, Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, China
| | - Q H Wang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - L L Si
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - R W Fan
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - G J Shang
- Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - W X Tian
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.,Shanxi Key Laboratory of protein structure determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
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Niu S, Liu Y, Ding X, Xu Y, Yu H, Feng X, Chang X, Wang H, Li J, Gong H, Ao L, Liu J, Lin M, Wang B, Ma X, Xu B, Zhang X. 18 F-DCFPyL positron emission tomography/magnetic resonance imaging-guided ultrasound fusion biopsy is an identical pathway in prostate cancer diagnosis. Prostate 2023; 83:142-150. [PMID: 36281654 DOI: 10.1002/pros.24446] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Prostate biopsy is still unavoidable in patients with a rising prostate-specific antigen even though multiparametric magnetic resonance imaging (MRI) is widely used. 18 F-DCFPyL positron emission tomography (PET)/MRI was proved to be promising both in sensitivity and specificity. But its guiding fusion biopsy and the advantages in the diagnosis of prostate disease is seldom reported. This study aimed to verify the feasibility and advantage of 18 F-DCFPyL PET/MRI-guided fusion targeted biopsy (TB) over whole-mount histopathology (WMH) for prostate cancer diagnosis. METHODS A prospective study of 94 biopsy-naïve patients were conducted using 18 F-DCFPyL PET/MRI scans and scored on a scale of 1-4. Systematic biopsy was performed for all patients. Patients with suspicious lesions also underwent PET/MRI/transrectal ultrasound-guided fusion biopsy. Patients with pathologically confirmed cancer underwent surgery and WMH sections. Systematic biopsy was compared with TB for the detection of index tumors (ITs). Significant cancer was defined as Grade group (GG) 2 or higher no matter the length of the cancer core. RESULTS 18 F-DCFPyL PET/MRI detected 30/94 (32%) patients with a score of 4, all of whom were verified to have prostate cancer. While it detected 10 patients with a score of 1 (10.6%), they were shown to have no cancer. The sensitivity and specificity of 18 F-DCFPyL PET/MRI were 94.4% and 75%, respectively, if images with a score of 3 are defined as positive. Systematic biopsy detected 18% (203/1128) samples as prostate cancer; conversely, TB detected 113 samples out of 259 scores (43.6%). A statistically significant difference was seen between the PCa detection rates by TB and SB (p < 0.001). All targeted lesions were pathologically proven to be the IT on WMH. CONCLUSIONS In biopsy-naïve patients, the ultrasound fusion biopsy targeted by 18 F-DCFPyL PET/MRI is an identical pathway for the detection of prostate cancer.
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Affiliation(s)
- Shaoxi Niu
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Yachao Liu
- Department of Nuclear Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xiaohui Ding
- Department of Pathology, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Yong Xu
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Hongkai Yu
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Xiaodong Feng
- Student Brigade of Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Xiao Chang
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Haiyi Wang
- Department of Radiology, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Jinhang Li
- Department of Pathology, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Huijie Gong
- Department of Urology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Liyan Ao
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Jiajin Liu
- Department of Nuclear Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Mu Lin
- MR Collaborations, Diagnostic Imaging, Siemens Healthcare, Shanghai, China
| | - Baojun Wang
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Xin Ma
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Baixuan Xu
- Department of Nuclear Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xu Zhang
- Department of Urology, The Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
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8
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Liu Y, Niu S, Luan X, Zhang X, Liu J, Zhang J, Wang R, Xu B, Zhang X. Can 18F-PSMA-7Q PET/CT replace prostate biopsy for the diagnosis of prostate cancer?-A single-center retrospective study. Transl Androl Urol 2023; 12:83-89. [PMID: 36760865 PMCID: PMC9906103 DOI: 10.21037/tau-22-813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
Background Of the currently available prostate-specific membrane antigen (PSMA) positron emission tomography (PET) tracers, although 68Ga-PSMA-11 and 18F-DCFPyL have been approved by the US Food and Drug Administration (FDA), both tracers are excreted rapidly through the urinary tract, resulting in strong accumulation in the bladder and blurring the prostate.18F-PSMA-7Q is a novel quinoline-containing PSMA PET tracer developed by our team, which is primarily excreted through the liver. It can reduce the incidence of urine-induced false-positives in the prostate. We aimed to explore the diagnostic efficacy of 18F-PSMA-7Q PET/computed tomography (CT), and when 18F-PSMA-7Q PET/CT can be used instead of prostate biopsy to diagnose prostate cancer. Methods Patients who underwent 18F-PSMA-7Q PET/CT for prostate cancer staging or prostate biopsy guidance at our institution between July 2020 and December 2021 were retrospectively enrolled. Molecular imaging PSMA (miPSMA) scores were assigned for intra-prostatic lesions according to the Prostate Cancer Molecular Imaging Standardized Evaluation (PROMISE) criteria, and the diagnostic efficacy of 18F-PSMA-7Q PET/CT for different miPSMA scores was evaluated using pathological diagnosis as the gold standard. Results Of the 125 enrolled patients, 101 had prostate cancer, and 24 had prostatic hyperplasia or prostatitis. miPSMA ≥2 was the optimal diagnostic threshold, and area under curve (AUC) was 0.948, the sensitivity and specificity were 91.1% and 83.0%. The prostate cancer detection rates of 18F-PSMA-7Q PET/CT were 14.3% (3/21), 60.0% (6/10), 96.7% (58/60), and 100% (34/34) for patients with miPSMA scores of 0, 1, 2, and 3, respectively. There was no significant difference in the detection rate of prostate cancer between groups with miPSMA scores of 2 and 3, but there were significant differences between any other 2 groups. Conclusions The prostate cancer detection rate of 18F-PSMA-7Q PET/CT was high for lesions with greater miPSMA scores of 2 and 3. For patients with a high miPSMA score, particularly those with a miPSMA score of 3, prostate biopsy can be omitted and prostate cancer-related treatment can be considered.
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Affiliation(s)
- Yachao Liu
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Shaoxi Niu
- Department of Urology, The Third Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xiaohui Luan
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xiaojun Zhang
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Jiajin Liu
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Jinming Zhang
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Ruimin Wang
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Baixuan Xu
- Department of Nuclear Medicine, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xu Zhang
- Department of Urology, The Third Medical Centre of Chinese PLA General Hospital, Beijing, China
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9
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Hou S, Wang X, Yu Y, Ji H, Dong X, Li J, Li H, He H, Li Z, Yang Z, Chen W, Yao G, Zhang Y, Zhang J, Bi M, Niu S, Zhao G, Zhu R, Liu G, Jia Y, Gao Y. Invasive fungal infection is associated with antibiotic exposure in preterm infants: a multi-centre prospective case-control study. J Hosp Infect 2023; 134:43-49. [PMID: 36646139 DOI: 10.1016/j.jhin.2023.01.002] [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: 11/07/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/15/2023]
Abstract
BACKGROUND Previous antibiotic exposure is an important risk factor for invasive fungal infection (IFI). Antibiotic overexposure is common in lower-income countries; however, multi-centre studies concerning IFI in relation to antibiotic exposure are scarce. AIM This prospective, multi-centre matched case-control study explored the correlation of IFI and antibiotic exposure in very preterm infants or very-low-birthweight infants admitted to 23 tertiary hospitals in China between 2018 and 2021. METHODS Using a 1:2 matched design for gestational age, birth weight and early-onset sepsis (yes/no), the risk factors between infants diagnosed with IFI and infection-free controls were compared. The antibiotic use rate (AUR) was calculated using calendar days of antibiotic therapy in the 4 weeks preceding IFI onset divided by onset day of IFI. FINDINGS In total, 6368 infants were included in the study, of which 90 (1.4%) were diagnosed with IFI. Median AUR, length of antibiotic therapy (LOT) and days of antibiotic therapy (DOT) within the 4 weeks preceding IFI onset were 0.90, 18 days and 30 days, respectively. Multi-variate analysis showed that a 10% increase in AUR, each additional day of DOT and LOT, and each additional day of third-generation cephalosporins and carbapenems were notably associated with IFI. CONCLUSION Prolonged antibiotic therapy is common before the onset of IFI, and is an important risk factor, especially the use of third-generation cephalosporins and carbapenems. Antibiotic stewardship should be urgently developed and promoted for preterm infants in order to reduce IFI in lower-income countries such as China.
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Affiliation(s)
- S Hou
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - X Wang
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Y Yu
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China.
| | - H Ji
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - X Dong
- Department of Neonatology, Shandong Provincial Maternal and Child Health Hospital, Jinan, Shandong, China
| | - J Li
- Department of Neonatology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - H Li
- Department of Neonatology, Hebei PetroChina Central Hospital, Langfang, China
| | - H He
- Department of Neonatology, Baogang Third Hospital of Hongci Group, Baotou, Inner Mongolia, China
| | - Z Li
- Department of Neonatology, W.F. Maternal and Child Health Hospital, Weifang, China
| | - Z Yang
- Department of Neonatology, Taian Maternal and Child Health Care Hospital, Taian, Shandong, China
| | - W Chen
- Department of Neonatology, People's Hospital of Rizhao, Rizhao, China
| | - G Yao
- Department of Neonatology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong, China
| | - Y Zhang
- Department of Neonatology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - J Zhang
- Department of Neonatology, Qilu Hospital of Shandong University, Jinan, China
| | - M Bi
- Department of Neonatology, Jinan Central Hospital, Jinan, China
| | - S Niu
- Department of Neonatology, Zibo Maternal and Child Health Hospital, Zibo, China
| | - G Zhao
- Department of Neonatology, Binzhou Medical University Hospital, Binzhou, China
| | - R Zhu
- Department of Neonatology, Zibo Municipal Hospital, Zibo, China
| | - G Liu
- Department of Neonatology, Yidu Central Hospital of Weifang, Weifang, China
| | - Y Jia
- Department of Neonatology, Shanxi Province Shangluo Central Hospital, Shanluo, China
| | - Y Gao
- Department of Neonatology, Qilu Hospital of Shandong University Dezhou Hospital, Shanluo, China
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10
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Olivero A, Liu K, Checchucci E, Liu L, Ma L, Wang G, Mantica G, Tappero S, Amparore D, Sica M, Fiori C, Huang Q, Niu S, Wang B, Ma X, Hou X, Porpiglia F, Terrone C, Zhang X. Adrenocortical carcinoma with venous tumor invasion: is there a role for mini-invasive surgery? Langenbecks Arch Surg 2023; 408:17. [PMID: 36625975 DOI: 10.1007/s00423-023-02765-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 11/22/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVE This study aims to investigate early oncologic outcomes in patients with adrenocortical carcinoma (ACC) with venous invasion (VI) treated using both open and mini-invasive approaches. PATIENTS AND MATERIALS We conducted a retrospective analysis of 4 international referral center databases, including all the patients undergoing adrenalectomy for ACC with VI from January 2007 to March 2020. According to CT scan or MRI, the tumor thrombus was classified into four levels: (1) adrenal vein invasion; (2) renal vein invasion; (3) infra-hepatic Inferior vena cava (IVC); and (4) retro-hepatic IVC. In addition, we divided our patients into patients who had undergone open surgery and mini-invasive surgery. RESULTS We identified 20 patients with a median follow-up of 12 months. The median tumor size was 110mm. ENSAT stage was II in 4 patients, III in 13 patients, and IV in 3 patients. Tumor thrombus extended in the adrenal vein (n=5), renal vein (n=1), infra-hepatic IVC (n=9), or into the retro-hepatic IVC (n=5). Ten patients were treated with a mini-invasive approach. The patient treated with an open approach reported a more aggressive disease. The two groups did not differ in surgical margins, surgical time, blood losses, complications, and length of stay. The prognosis resulted worse in the patient undergoing open. Kaplan-Meier analysis indicated a difference in OS for the patients stratified by ENSAT stage (Log-rank p=0.011); we also reported a difference in DFS for patients stratified for thrombus extension (p=0.004) and ENSAT stage (p<0.001). CONCLUSION The DFS of patients with VI from ACC is influenced by the staging and the extension of the venous invasion; the staging influences the OS. The mini-invasive approach seems feasible in selected patients; however, further studies investigating the oncological outcomes are needed. A mini-invasive approach for adrenal tumors with venous invasion is an explorable option in very selected patients.
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Affiliation(s)
- Alberto Olivero
- Department of Urology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy.
- Department of Urology, Policlinico San Martino Hospital, University of Genoa, Genoa, Italy.
| | - Kan Liu
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Enrico Checchucci
- Division of Urology, Department of Oncology, School of Medicine, University of Turin, San Luigi Hospital, Orbassano, Turin, Italy
| | - Lei Liu
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Lulin Ma
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Guoliang Wang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Guglielmo Mantica
- Department of Urology, Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - Stefano Tappero
- Department of Urology, Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - Daniele Amparore
- Division of Urology, Department of Oncology, School of Medicine, University of Turin, San Luigi Hospital, Orbassano, Turin, Italy
| | - Michele Sica
- Division of Urology, Department of Oncology, School of Medicine, University of Turin, San Luigi Hospital, Orbassano, Turin, Italy
| | - Cristian Fiori
- Division of Urology, Department of Oncology, School of Medicine, University of Turin, San Luigi Hospital, Orbassano, Turin, Italy
| | - Quingbo Huang
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Shaoxi Niu
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Baojun Wang
- Department of Urology, Chinese PLA General Hospital, Beijing, China.
| | - Xin Ma
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Xiaofei Hou
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Francesco Porpiglia
- Division of Urology, Department of Oncology, School of Medicine, University of Turin, San Luigi Hospital, Orbassano, Turin, Italy
| | - Carlo Terrone
- Department of Urology, Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - Xu Zhang
- Department of Urology, Chinese PLA General Hospital, Beijing, China
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11
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Niu S, Ma BT, Zhang R, Rong ZH, Ni L, Di X, Liu CW. [Treatment strategies and research progress of acute ilio-femoral deep vein thrombosis]. Zhonghua Wai Ke Za Zhi 2021; 59:799-803. [PMID: 34404180 DOI: 10.3760/cma.j.cn112139-20210424-00183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In the past,treatment of acute ilio-femoral deep vein thrombosis (IFDVT) was mainly based on anticoagulation alone,but 30%-50% of patients will develop post-thrombotic syndrome,causing a serious medical burden.Thrombus removal technology such as catheter-directed thrombolysis and percutaneous mechanical thrombectomy can effectively remove blood clots and compensate for the deficiencies of simple anticoagulation,which is expected to improve the prognosis of such disease,but the current evidence is insufficient,and other treatments such as filter implantation and compression therapy are also controversial.This article summarizes the treatment strategies and the latest progress of acute IFDVT,hoping to help the treatment of this type of disease.
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Affiliation(s)
- S Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - B T Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - R Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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12
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Niu S, Liu K, Xu Y, Peng C, Yu Y, Huang Q, Wu S, Cui B, Huang Y, Ma X, Zhang X, Wang B. Genomic Landscape of Chinese Clear Cell Renal Cell Carcinoma Patients With Venous Tumor Thrombus Identifies Chromosome 9 and 14 Deletions and Related Immunosuppressive Microenvironment. Front Oncol 2021; 11:646338. [PMID: 34249685 PMCID: PMC8260842 DOI: 10.3389/fonc.2021.646338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 05/18/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Clear cell renal cell carcinoma (ccRCC) with venous tumor thrombus (VTT) is associated with a poor clinical outcome. Although several studies have examined the genomic features of ccRCC, the genetic profile of VTT along with its matched primary tumor has not been fully elucidated. MATERIALS AND METHODS Samples of VTT tissues and matched primary tumor tissues from ccRCC patients (n = 25), as well as primary tumor tissues from patients without VTT (n = 25) were collected and analyzed using whole-exome sequencing. Four additional ccRCC patients who were unfit for surgery were treated with an anti-programmed death receptor-1 (PD-1) monoclonal antibody (Toripalimab, 240 mg, Q3W, IV). RESULTS By comparing the primary kidney tumors from ccRCC patients with or without VTT, a relatively higher prevalence of BAP1 and KDM5C alterations were found in ccRCC patients with VTT, and these alterations were associated with worse overall survival in the kidney renal clear cell carcinoma (KIRC) database. Based on subclone analysis, VTT was predicted to primarily originate directly from the primary renal mass. A significantly higher prevalence of CELSR2 and TET2 alterations were identified in the VTTs compared with the matched primary tumors. An increased prevalence of DNA damage repair genes, especially those involved in homologous recombination repair and non-homologous end joining, was found in ccRCC patients with VTT. Notably, VTT was characterized by the increase incidence of copy number loss in the whole exome (p < 0.05), particularly in the chromosome 9 and 14 regions. Deletion of chromosome 9 and 14 was associated with worse survival, unfavorable clinical features, and the presence of an immunosuppressive microenvironment, which was characterized by higher infiltration of regulatory T cells, follicular helper T cells, and resting mast cells, but lower counts of resting CD4 memory T cells and CD8 positive T cells. A significantly lower count of CD4+ and CD8+ tumor-infiltrated lymphocytes was identified in the VTT samples comparing with matched primary tumor. Of note, three out of the four ccRCC patients with VTT in our cohort who were treated with the anti-PD-1 therapy exhibited remarkable remission in the renal mass but no notable shrinkage in the VTT mass. CONCLUSION Our study revealed the genetic profile of Chinese ccRCC patients with VTT, and identified multiple features associated with known poor outcomes, including gene alterations and copy number loss. The deletions in chromosomes 9 and 14, and the associated immunosuppressive microenvironment may indicate limited sensitivity to anti-PD-1/PD-L1 monotherapy in VTT.
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Affiliation(s)
- Shaoxi Niu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Kan Liu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Yong Xu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Cheng Peng
- Department of Urology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yao Yu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Qingbo Huang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Shengpan Wu
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Bo Cui
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Yan Huang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Xin Ma
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Xu Zhang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Baojun Wang
- Department of Urology, The Third Medical Centre, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
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13
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Olivero A, Liu K, Checcucci E, Lei L, Ma L, Wang G, Mantica G, Tappero S, Amparore D, Sica M, Fiori C, Huang Q, Niu S, Wang B, Ma X, Hou X, Porpiglia F, Terrone C, Zhang X. Adrenocortical Carcinoma with venous tumor invasion. Is there a role for mini-invasive surgery? Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01069-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Yang B, Zhao X, Wan C, Ma X, Niu S, Guo A, Wang J, Wang J, Sun D, Jiao S. Genomic profiling of Chinese patients with urothelial carcinoma. BMC Cancer 2021; 21:162. [PMID: 33588785 PMCID: PMC7885246 DOI: 10.1186/s12885-021-07829-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/21/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUNDS Urothelial carcinoma (UC) is the most common genitourinary malignancy in China. In this study, we surveyed the genomic features in Chinese UC patients and investigated the concordance of genetic alterations between circulating tumor DNA (ctDNA) in plasma and matched tumor tissue. MATERIALS AND METHODS A total of 112 UC patients were enrolled, of which 31 were upper tract UC (UTUC) and 81 were UC of bladder (UCB). Genomic alterations in 92 selected genes were analyzed by targeted next-generation sequencing. RESULTS In the study cohort, 94.64, 86.61 and 62.50% of patients were identified as having valid somatic, oncogenic and actionable somatic alterations, respectively. The most frequently altered genes included TP53, KMT2D, KDM6A, FAT4, FAT1, CREBBP and ARID1A. The higher prevalence of HRAS (22.0% vs 3.7%) and KMT2D (59.26% vs 34.57%) was identified in UTUC than in UCB. Comparisons of somatic alterations of UCB and UTUC between the study cohort and western cohorts revealed significant differences in mutant prevalence. Notably, 28.57, 17.86 and 47.32% of the cases harbored alterations in FGFRs, ERBBs and DNA damage repair genes, respectively. Furthermore, 75% of the patients carried non-benign germline variants, but only two (1.79%) were pathogenic. The overall concordance for genomic alterations in ctDNA and matched tumor tissue was 42.97% (0-100%). Notably, 47.25% of alterations detected in ctDNA were not detected in the matched tissue, and 54.14% of which were oncogenic mutations. CONCLUSIONS We found a unique genomic feature of Chinese UC patients. A reasonably good concordance of genomic features between ctDNA and tissue samples were identified.
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Affiliation(s)
- Bo Yang
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China
| | - Xiao Zhao
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China
| | - Chong Wan
- Lifehealthcare Clinical Laboratories, Hangzhou, China
| | - Xin Ma
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Shaoxi Niu
- Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - Aitao Guo
- Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Jieli Wang
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China
| | - Jinliang Wang
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China
| | - Decong Sun
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China
| | - Shunchang Jiao
- Department of Oncology, Chinese PLA General Hospital, Fuxing Road 28, Beijing, China.
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15
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Gu Y, Niu S, Wang Y, Duan L, Pan Y, Tong Z, Zhang X, Yang Z, Peng B, Wang X, Han X, Li Y, Cheng T, Liu Y, Shang L, Liu T, Yang X, Sun M, Jiang S, Zhang C, Zhang N, Ye Q, Gao S. DMDRMR-Mediated Regulation of m 6A-Modified CDK4 by m 6A Reader IGF2BP3 Drives ccRCC Progression. Cancer Res 2020; 81:923-934. [PMID: 33293428 DOI: 10.1158/0008-5472.can-20-1619] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/09/2020] [Accepted: 12/03/2020] [Indexed: 11/16/2022]
Abstract
Aberrant N 6-methyladenosine (m6A) modification has emerged as a driver of tumor initiation and progression, yet how long noncoding RNAs (lncRNA) are involved in the regulation of m6A remains unknown. Here we utilize data from 12 cancer types from The Cancer Genome Atlas to comprehensively map lncRNAs that are potentially deregulated by DNA methylation. A novel DNA methylation-deregulated and RNA m6A reader-cooperating lncRNA (DMDRMR) facilitated tumor growth and metastasis in clear cell renal cell carcinoma (ccRCC). Mechanistically, DMDRMR bound insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3) to stabilize target genes, including the cell-cycle kinase CDK4 and three extracellular matrix components (COL6A1, LAMA5, and FN1), by specifically enhancing IGF2BP3 activity on them in an m6A-dependent manner. Consequently, DMDRMR and IGF2BP3 enhanced the G1-S transition, thus promoting cell proliferation in ccRCC. In patients with ccRCC, high coexpression of DMDRMR and IGF2BP3 was associated with poor outcomes. Our findings reveal that DMDRMR cooperates with IGF2BP3 to regulate target genes in an m6A-dependent manner and may represent a potential diagnostic, prognostic, and therapeutic target in ccRCC. SIGNIFICANCE: This study demonstrates that the lncRNA DMDRMR acts as a cofactor for IGF2BP3 to stabilize target genes in an m6A-dependent manner, thus exerting essential oncogenic roles in ccRCC.
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Affiliation(s)
- Yinmin Gu
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shaoxi Niu
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yang Wang
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Liqiang Duan
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Yongbo Pan
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Zhou Tong
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Xu Zhang
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhenyu Yang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Bo Peng
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiaodong Wang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiaoqi Han
- Medical College, Guizhou University, Guiyang, China
| | - Yuxin Li
- Pharmaceutical Analysis, College of Pharmacy, Beihua University, Jilin, China
| | - Tianyou Cheng
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Yajuan Liu
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Lina Shang
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
| | - Tongfeng Liu
- Medical College, Guizhou University, Guiyang, China
| | - Xiwang Yang
- Medical College, Guizhou University, Guiyang, China
| | - Minxuan Sun
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Siyuan Jiang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Chang Zhang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Ning Zhang
- College of Life Science, Northwest A&F University, Yangling, China
| | - Qinong Ye
- Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Collaborative Innovation Center for Cancer Medicine, Beijing, China
| | - Shan Gao
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China. .,Shanxi Academy of Advanced Research and Innovation, Taiyuan, China
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16
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Niu S, Li X, Jahejo AR, Zhang N, Yang SX, Jia YF, Zhang YY, Tian ZX, Li Z, Ning GB, Zhang D, Tian WX. Glutathione-S-transferase A3 protein suppresses thiram-induced tibial dyschondroplasia by regulating prostaglandin-related genes expression. Res Vet Sci 2020; 135:343-348. [PMID: 33129574 DOI: 10.1016/j.rvsc.2020.10.014] [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: 12/17/2019] [Revised: 10/04/2020] [Accepted: 10/19/2020] [Indexed: 10/23/2022]
Abstract
Tibial dyschondroplasia (TD) is an intractable avian cartilage disease in which proximal growth plates of tibia lack blood vessels and contain nonviable cells, and it leads to the inflammatory response. Prostaglandins (PGs) genes have not been studied yet in TD chicken, and they might play role in skeletal metabolism, therefore we planned to explore the role of recombinant glutathione-S-transferase A3 (rGSTA3) protein and PG-related genes. In this study, qRT-PCR, enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry (IHC) analysis were used to identify the expression patterns of eight PG-related genes in the tibial growth plate of broiler chicken. The results showed that the expression of PG-related genes glutathione-S-transferase A3 (GSTA3), cyclooxygenase 2 (COX-2), prostaglandin D2 synthase (PTGDS), prostaglandin E synthase (PTGES), prostaglandin E2 receptor (PTGER) 3, PTGER4, prostaglandin reductase 1 (PTGR1) and hematopoietic prostaglandin D synthases (HPGDS) expression were identified and could significantly respond to thiram-induced TD chicken. Interestingly, the expression of rate-limiting enzyme COX-2 and PGE2 were induced after the treatment of rGSTA3 protein. These findings demonstrated that the occurrence of TD is closely related to the inhibition of PGs. Moreover, rGSTA3 protein participated in the recovery of TD by strengthening the expression of PG-related genes.
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Affiliation(s)
- S Niu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - X Li
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - A R Jahejo
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - N Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - S X Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Y F Jia
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Y Y Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Z X Tian
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Z Li
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - G B Ning
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - D Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - W X Tian
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China.
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17
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Wang B, Huang Q, Liu K, Fan Y, Peng C, Gu L, Shi T, Zhang P, Chen W, Du S, Niu S, Liu R, Zhao G, Li Q, Xiao C, Wang R, Li S, Wang M, Liu F, Wang H, Li H, Ma X, Zhang X. Robot-assisted Level III-IV Inferior Vena Cava Thrombectomy: Initial Series with Step-by-step Procedures and 1-yr Outcomes. Eur Urol 2020; 78:77-86. [DOI: 10.1016/j.eururo.2019.04.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 04/12/2019] [Indexed: 11/15/2022]
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18
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Niu S, Zhao ZG, Lyu XM, Zhao M, Wang XZ, Liu WN, Zhao W, Zhang XH, Wang Y. [The expression and significance of IGF1R-Ras/RAGE-HMGB1 pathway in colorectal cancer patients with type 2 diabetes mellitus]. Zhonghua Zhong Liu Za Zhi 2020; 42:391-395. [PMID: 32482028 DOI: 10.3760/cma.j.cn112152-112152-20190906-00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of IGF1R-Ras and RAGE-HMGB1 signaling pathways in colorectal cancer patients with type 2 diabetes mellitus and their significance. Methods: The resected cancer tissues were obtained from 59 patients with colorectal cancer (CRC), including 29 patients with type 2 diabetes mellitus (CRC/DM group) and 30 with CRC alone (CRC group). The expressions of IGF1R, Ras, RAGE and HMGB1 in cancer tissues were detected by immunohistochemistry. The differences between the two groups were compared and the relationship between the expression and clinicopathological characteristics was analyzed. Results: In CRC/DM group, the positive rates of IGF1R and Ras were both 65.5% (19/29), and 51.7% (15/29) patients had IGF1R+ Ras+ immunophenotype, which were significantly higher than those in CRC group [33.3% (10/30), 36.7% (11/30) and 20.0% (6/30); P=0.013, 0.027 and 0.011, respectively]. The expression of IGF1R and Ras in CRC / DM group was positively correlated (r=0.479, P=0.017). The positive rate of RAGE expression in CRC group and CRC/DM group was 70.0% (21/30) and 72.4% (21/29) respectively, and the positive rate of HMGB1 expression was 46.7% (14/30) and 58.6% (17/29) respectively, neither was observed with significant difference (P=0.358 and 0.838). However, the proportion of patients with RAGE+ HMGB1+ immunophenotype in CRC/DM group [55.2% (16/29)] was higher than that in CRC Group [26.7% (8/30)] which was statistically significant (P=0.026), and the expression of both proteins was positively correlated in CRC/DM group (r=0.578, P=0.003). The clinicopathological analysis showed that in both groups the expression of IGF1R, Ras, RAGE and HMGB1 had no correlation with the sex, age, differentiation degree, tumor length, T stage and lymph node metastasis (P>0.05). Conclusion: Both IGF1R-Ras and RAGE-HMGB1 pathways may be involved in the oncogenesis of colorectal cancer in patients with type 2 diabetes.
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Affiliation(s)
- S Niu
- Second Department of Endocrinology, Shijiazhuang First Hospital, Shijiazhuang 050011, China
| | - Z G Zhao
- Second Department of Endocrinology, Shijiazhuang First Hospital, Shijiazhuang 050011, China
| | - X M Lyu
- Department of Pathology, Shijiazhuang First Hospital, Shijiazhuang 050011, China
| | - M Zhao
- Metabolic Disease and Cancer Research Center, Hebei Medical University, Shijiazhuang 050017, China
| | - X Z Wang
- Metabolic Disease and Cancer Research Center, Hebei Medical University, Shijiazhuang 050017, China
| | - W N Liu
- Department of Pathology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - W Zhao
- Department of Pathology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - X H Zhang
- Department of Pathology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Y Wang
- Department of Pathology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
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19
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Shi T, Huang Q, Liu K, Du S, Fan Y, Yang L, Peng C, Shen D, Wang Z, Gao Y, Gu L, Niu S, Ai Q, Li H, Liu F, Li Q, Wang H, Guo A, Fu B, Yang X, Zhang X, Wang D, Wang D, Guo H, Li H, Olivero A, Fam XI, Ma X, Wang B, Zhang X. Robot-assisted Cavectomy Versus Thrombectomy for Level II Inferior Vena Cava Thrombus: Decision-making Scheme and Multi-institutional Analysis. Eur Urol 2020; 78:592-602. [PMID: 32305170 DOI: 10.1016/j.eururo.2020.03.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 01/20/2020] [Accepted: 03/13/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Robot-assisted thrombectomy (RAT) for inferior vena cava (IVC) thrombus (RAT-IVCT) is being increasingly reported. However, the techniques and indications for robot-assisted cavectomy (RAC) for IVC thrombus are not well described. OBJECTIVE To develop a decision-making program and analyze multi-institutional outcomes of RAC-IVCT versus RAT-IVCT. DESIGN, SETTING, AND PARTICIPANTS Ninety patients with renal cell carcinoma (RCC) with level II IVCT were included from eight Chinese urological centers, and underwent RAC-IVCT (30 patients) or RAT-IVCT (60 patients) from June 2013 to January 2019. SURGICAL PROCEDURE The surgical strategy was based on IVCT imaging characteristics. RAT-IVCT was performed with standardized cavotomy, thrombectomy, and IVC reconstruction. RAC-IVCT was mainly performed in patients with extensive IVC wall invasion when the collateral blood vessels were well-established. For right-sided RCC, the IVC from the infrarenal vein to the infrahepatic veins was stapled. For left-sided RCC, the IVC from the suprarenal vein to the infrahepatic veins was removed and caudal IVC reconstruction was performed to ensure the right renal vein returned through the IVC collaterals. MEASUREMENTS Clinicopathological, operative, and survival outcomes were collected and analyzed. RESULTS AND LIMITATIONS All procedures were successfully performed without open conversion. The median operation time (268 vs 190 min) and estimated blood loss (1500 vs 400 ml) were significantly greater for RAC-IVCT versus RAT-IVCT (both p < 0.001). IVC invasion was a risk factor for progression-free and overall survival at midterm follow-up. Large-volume and long-term follow-up studies are needed. CONCLUSIONS RAC-IVCT or RAT-IVCT represents an alternative minimally invasive approach for selected RCC patients with level II IVCT. Selection of RAC-IVCT or RAT-IVCT is mainly based on preoperative IVCT imaging characteristics, including the presence of IVC wall invasion, the affected kidney, and establishment of the collateral circulation. PATIENT SUMMARY In this study we found that robotic surgeries for level II inferior vena cava thrombus were feasible and safe. Preoperative imaging played an important role in establishing an appropriate surgical plan.
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Affiliation(s)
- Taoping Shi
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Qingbo Huang
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Kan Liu
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Songliang Du
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Yang Fan
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Luojia Yang
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Cheng Peng
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Dan Shen
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Zhongxin Wang
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Yu Gao
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Liangyou Gu
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Shaoxi Niu
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Qing Ai
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Hongzhao Li
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China
| | - Fengyong Liu
- Department of Interventional Radiology, Chinese PLA General Hospital, Beijing, China
| | - Qiuyang Li
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Haiyi Wang
- Department of Radiology, Chinese PLA General Hospital, Beijing, China
| | - Aitao Guo
- Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Bin Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaojian Yang
- Department of Urology, Xijing Hospital of Chinese PLA Air Force Medical University, Xi'an, China
| | - Xuepei Zhang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Delin Wang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dongwen Wang
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Hongqian Guo
- Department of Urology, Nanjing Drum Tower Hospital of Nanjing Medical school, Nanjing, China
| | - Hengping Li
- Department of Urology, Gansu Provincial Hospital, Lanzhou, China
| | - Alberto Olivero
- Department of Urology, San Martino Policlinico Hospital, University of Genova, Genoa, Italy
| | - Xeng Inn Fam
- Urology Unit, Surgery Department, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Xin Ma
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Baojun Wang
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Xu Zhang
- Department of Urology, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
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20
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Peng F, Bao Y, Chen L, Zhang Y, Niu S, Huang S, Chen Y, Chen M. Increased Radiation Pneumonitis after Crizotinib and Concurrent Thoracic Radiotherapy in Patients with ALK-positive Non-small-cell Lung Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.152] [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: 10/26/2022]
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21
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Niu S, Li Y, Wang H, Zhang Y. Simultaneous Integrated Boost IMRT with Three Dose Gradients in Patients with Stage I-II Nasal Cavity and Waldeyer's Ring Natural Killer/T-Cell Lymphoma: A Prospective Phase II Clinical Trial. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Yao Y, Gong H, Pang Y, Gu L, Niu S, Xu Y, Li P, Liu K, Tang L, Xuan Y, Gao Y, Zhang X. Risk Factors Influencing the Thickness and Stranding of Perinephric Fat of Mayo Adhesive Probability Score in Minimally Invasive Nephrectomy. Med Sci Monit 2019; 25:3825-3831. [PMID: 31118409 PMCID: PMC6543873 DOI: 10.12659/msm.916359] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Mayo adhesive probability (MAP) score, an accurate and reliable predictor of adherent perinephric fat (APF), consists of posterior perinephric fat thickness and perinephric fat stranding. The present study aimed to identify the potential clinical characteristics associated with these 2 variables to further our understanding of APF. Material/Methods Clinical data of 346 patients subjected to minimally invasive nephrectomy was collected within our prospectively maintained database, between January 2015 and December 2016. Radiological data was assessed by 2 readers in an independent blinded – to each other and APF patient status – fashion. Ordinal logistic regression analyses were performed to evaluate risk factors of posterior perinephric fat thickness and perinephric fat stranding. Results On multivariate analysis, posterior perinephric fat thickness was associated with older age (b=1.05 [range, 1.03–1.07], P<0.01); male gender (b=6.06 [3.18–11.54], P<0.01), and higher body mass index (BMI) (b=1.31 [1.21–1.41], P<0.01). Perinephric fat stranding was associated with older age (b=1.05 [1.02–1.07], P<0.01), male gender (b=3.64 [2.09–6.34], P<0.01) and history of diabetes (b=2.09 [1.24–3.52], P<0.01). MAP score was associated with older age (b=1.05 [1.03–1.07], P<0.01), male gender (b=5.07 [2.96–8.71], P<0.01), higher BMI (b=1.14 [1.07–1.21], P<0.01), history of diabetes (b=1.72 [1.06–2.78], P=0.03) and alcoholism (b=1.88 [1.10–3.20], P=0.02). Conclusions The current study highlights that different risk factors influence the posterior perinephric fat thickness and perinephric fat stranding. Posterior perinephric fat thickness was correlated with age, gender, and BMI, while perinephric fat stranding was associated with age, gender, and history of diabetes.
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Affiliation(s)
- Yuanxin Yao
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Huijie Gong
- Department of Urology, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Yuewen Pang
- Department of Urology, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Liangyou Gu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Shaoxi Niu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Yansheng Xu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Pin Li
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Kan Liu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Lu Tang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Yundong Xuan
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Yu Gao
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
| | - Xu Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China (mainland)
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23
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Liu YN, Niu S, Chen WY, Zhang Q, Tao Y, Chen WH, Jiang KC, Chen X, Shi H, Liu A, Li J, Li Y, Lee YC, Zhang X, Huang J. Leukemia Inhibitory Factor Promotes Castration-resistant Prostate Cancer and Neuroendocrine Differentiation by Activated ZBTB46. Clin Cancer Res 2019; 25:4128-4140. [PMID: 30962287 PMCID: PMC7168873 DOI: 10.1158/1078-0432.ccr-18-3239] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 02/22/2019] [Accepted: 03/29/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE The molecular targets for castration-resistant prostate cancer (CRPC) are unknown because the disease inevitably recurs, and therapeutic approaches for patients with CRPC remain less well understood. We sought to investigate regulatory mechanisms that result in increased therapeutic resistance, which is associated with neuroendocrine differentiation of prostate cancer and linked to dysregulation of the androgen-responsive pathway. EXPERIMENTAL DESIGN The underlying intracellular mechanism that sustains the oncogenic network involved in neuroendocrine differentiation and therapeutic resistance of prostate cancer was evaluated to investigate and identify effectors. Multiple sets of samples with prostate adenocarcinomas and CRPC were assessed via IHC and other assays. RESULTS We demonstrated that leukemia inhibitory factor (LIF) was induced by androgen deprivation therapy (ADT) and was upregulated by ZBTB46 in prostate cancer to promote CRPC and neuroendocrine differentiation. LIF was found to be induced in patients with prostate cancer after ADT and was associated with enriched nuclear ZBTB46 staining in high-grade prostate tumors. In prostate cancer cells, high ZBTB46 output was responsible for the activation of LIF-STAT3 signaling and neuroendocrine-like features. The abundance of LIF was mediated by ADT-induced ZBTB46 through a physical interaction with the regulatory sequence of LIF. Analysis of serum from patients showed that cases of higher tumor grade and metastatic prostate cancer exhibited higher LIF titers. CONCLUSIONS Our findings suggest that LIF is a potent serum biomarker for diagnosing advanced prostate cancer and that targeting the ZBTB46-LIF axis may therefore inhibit CRPC development and neuroendocrine differentiation after ADT.
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Affiliation(s)
- Yen-Nien Liu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. .,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan.,Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Shaoxi Niu
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical Academy, Beijing, China
| | - Wei-Yu Chen
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Qingfu Zhang
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Yulei Tao
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Wei-Hao Chen
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Ching Jiang
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Xufeng Chen
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Huaiyin Shi
- Department of Pathology, The PLA General Hospital, Beijing, China
| | - Aijun Liu
- Department of Pathology, The PLA General Hospital, Beijing, China
| | - Jinhang Li
- Department of Pathology, The PLA General Hospital, Beijing, China
| | - Yanjing Li
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Yi-Chao Lee
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Xu Zhang
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical Academy, Beijing, China.
| | - Jiaoti Huang
- Department of Pathology, Duke University Medical Center, Durham, North Carolina.
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24
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Niu S, Wang CX, Jia FJ, Jahejo AR, Li X, Ning GB, Zhang D, Ma HL, Hao WF, Gao WW, Zhao YJ, Gao SM, Li JH, Li GL, Yan F, Gao RK, Huo NR, Tian WX, Chen HC. The expression of prostaglandins-related genes in erythrocytes of broiler chicken responds to thiram-induced tibial dyschondroplasia and recombinant glutathione-S-transferase A3 protein. Res Vet Sci 2019; 124:112-117. [PMID: 30878632 DOI: 10.1016/j.rvsc.2019.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 11/13/2018] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Abstract
Tibial dyschondroplasia (TD) is a type of bone deformity found in fast-growing chickens, which induce inflammatory responses. Prostaglandins (PGs) implicate in bone formation and bone resorption, associated with inflammation in an autocrine/paracrine manner. This study used qRT-PCR and immunohistochemistry analysis to identify the expression patterns of PG-related genes in the erythrocytes of broiler chickens and explore the effects of thiram-induced TD and the recombinant glutathione-S-transferase A3 (rGSTA3) protein on the expression of PG-related genes: GSTA3, cyclooxygenase 2 (COX-2), prostaglandin D2 synthase (PTGDS), prostaglandin E synthase (PTGES), prostaglandin E2 receptor (PTGER) 3, PTGER4 and prostaglandin reductase 1 (PTGR1). Interestingly, the results showed that these seven PG-related genes expression was identified in the erythrocytes of broiler chicken, and thiram-induced TD suppressed the expression of these PG-related genes in the initial stage of TD and promoted their expression in TD recovery. These findings demonstrated that the immunoregulatory function of erythrocytes can be inhibited in the early stage of TD and promoted in the recovery stage by modulating the expression of PG-related genes. Further, the rGSTA3 protein can modulate the expression of PG-related genes in erythrocytes and participate in the recovery of TD.
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Affiliation(s)
- S Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - C X Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F J Jia
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - A R Jahejo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G B Ning
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - D Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - H L Ma
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W F Hao
- Taiyuan Center for Disease Control and Prevention, Taiyuan 030024, China
| | - W W Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Y J Zhao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - S M Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - J H Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G L Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F Yan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - R K Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - N R Huo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W X Tian
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China.
| | - H C Chen
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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25
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Wang C, Niu S, Jahejo A, Jia F, Li Z, Zhang N, Ning G, Zhang D, Li H, Ma H, Hao W, Gao W, Gao S, Li J, Li G, Yan F, Gao R, Zhao Y, Chen H, Tian W. Identification of apoptosis-related genes in erythrocytes of broiler chickens and their response to thiram-induced tibial dyschondroplasia and recombinant glutathione-S-transferase A3 protein. Res Vet Sci 2018; 120:11-16. [DOI: 10.1016/j.rvsc.2018.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 07/29/2018] [Accepted: 08/20/2018] [Indexed: 12/23/2022]
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26
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Niu S. 1649a Ilo activities for the prevention of the risk related to occupational exposure to emf in workers. Radiation 2018. [DOI: 10.1136/oemed-2018-icohabstracts.1202] [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: 11/03/2022] Open
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27
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Niu S. 1651f Ilo activities for the prevention of the risk related to occupational exposure to solar uv. Radiation 2018. [DOI: 10.1136/oemed-2018-icohabstracts.1216] [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: 11/03/2022] Open
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28
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Crowther TW, Machmuller MB, Carey JC, Allison SD, Blair JM, Bridgham SD, Burton AJ, Dijkstra FA, Elberling B, Estiarte M, Larsen KS, Laudon H, Lupascu M, Marhan S, Mohan J, Niu S, J Peñuelas J, Schmidt IK, Templer PH, Kröel-Dulay G, Frey S, Bradford MA. Crowther et al. reply. Nature 2018; 554:E7-E8. [PMID: 29469091 DOI: 10.1038/nature25746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T W Crowther
- Institute of Integrative Biology, ETH Zurich, Universitätstrasse 16, 8006 Zürich, Switzerland
| | - M B Machmuller
- Natural Resource Ecology Laboratory, 1 499 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1499, USA
| | - J C Carey
- Division of Math and Science, Babson College, Massachusetts 02457, USA
| | - S D Allison
- Department of Earth System Science, University of California Irvine, Irvine, California 92697, USA.,Department of Ecology & Evolutionary Biology, University of California Irvine, Irvine, California 92697, USA
| | - J M Blair
- Division of Biology, Kansas State University, Manhattan, Kansas 66506, USA
| | - S D Bridgham
- Institute of Ecology & Evolution, University of Oregon, Eugene, Oregon 97403, USA
| | - A J Burton
- School of Forest Resources & Environmental Science, Michigan Technological University, Houghton, Michigan 49931, USA
| | - F A Dijkstra
- Centre for Carbon, Water & Food, The University of Sydney, Camden, 2570 New South Wales, Australia
| | - B Elberling
- Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350 Copenhagen K., Denmark
| | - M Estiarte
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193 Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - K S Larsen
- Department of Geosciences & Natural Resource Management, University of Copenhagen, Rolighedsvej 23, 1958 Frederiksberg C, Denmark
| | - H Laudon
- Department of Forest Ecology & Management, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
| | - M Lupascu
- Department of Geography, National University of Singapore, 1 Arts Link, 117570, Singapore
| | - S Marhan
- Institute of Soil Science & Land Evaluation, University of Hohenheim, 70593 Stuttgart, Germany
| | - J Mohan
- Odum School of Ecology, University of Georgia, Athens, Georgia 30601, USA
| | - S Niu
- Key Laboratory of Ecosystem Network Observation & Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - J J Peñuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193 Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - I K Schmidt
- Department of Geosciences & Natural Resource Management, University of Copenhagen, Rolighedsvej 23, 1958 Frederiksberg C, Denmark
| | - P H Templer
- Department of Ecology & Evolutionary Biology, University of California Irvine, Irvine, California 92697, USA
| | - G Kröel-Dulay
- Institute of Ecology & Botany, MTA Centre for Ecological Research, 2-4. Alkotmany U., Vacratot, 2163-Hungary
| | - S Frey
- Department of Natural Resources & the Environment, University of New Hampshire, Durham, New Hampshire 03824, USA
| | - M A Bradford
- School of Forestry & Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut 06511, USA
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Chen Y, Jia HR, Niu S, Zhang X, Wang HL, Ye YZ, Chen QS, Yuan ZL. Effects of Topographical Heterogeneity and Dispersal Limitation on Species Turnover in a Temperate Mountane Ecosystem: a Case Study in the Henan Province, China. RUSS J ECOL+ 2018. [DOI: 10.1134/s1067413618010046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shi X, Zhao S, Ding C, Jiang W, Kynard B, Liu L, Niu S, Liu D. Comparison of vertical and horizontal swimming behaviour of the weather loach Misgurnus anguillicaudatus. J Fish Biol 2017; 91:368-374. [PMID: 28508492 DOI: 10.1111/jfb.13342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 04/21/2017] [Indexed: 06/07/2023]
Abstract
Experiments on the swimming kinetics and behaviour of weather loach Misgurnus anguillicaudatus showed that horizontal swim speed was significantly greater than swim speeds when ascending to or descending from the water surface to gulp air. Vertical swimming speeds during ascending or descending were similar. Misgurnus anguillicaudatus swam unsteadily during vertical movements compared with horizontal movements.
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Affiliation(s)
- X Shi
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, China
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China
| | - S Zhao
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, China
| | - C Ding
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China
| | - W Jiang
- Institute of Chinese Sturgeon Research, China Three Gorges Project Corporation, Yichang, 443100, China
| | - B Kynard
- BK-Riverfish, LLC, Amherst, MA, 01002, U.S.A
- Environmental Conservation Department, University of Massachusetts-Amherst, Amherst, MA, U.S.A
| | - L Liu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, China
| | - S Niu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, China
| | - D Liu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, China
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Abstract
We developed a reliable and quantitative method for measuring the dynamic process of unidirectional two-dimensional (2-D) tissue formation of endothelial cells (ECs) in vitro. The culturing of bovine ECs in an assembled culture chamber provided a square monolayered cell sheet with a linear margin when disassembled at the confluency. The cell sheet maintained in culture showed a unidirectional endothelialization in vitro. The cell population-distance histogram, which was determined from the daily observation of tissue, allowed us to determine quantitatively the dynamic process of unidirectional endothelialization in vitro. The endothelialized distance and the endothelializing zone on a glass slide were found to be nearly 500 μm/day and 750 μm in width, respectively. Thus, the method developed here provided information of the 2-D tissue formation process. This model would be useful as an in vitro model which simulates the anastomotic endothelialization of an artificial vascular graft.
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Affiliation(s)
- S Niu
- Department of Bioengineering, National Cardiovascular Center Research Institute, Osaka, Japan
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Wu W, Fan Q, Lu S, Niu S, Wang X. Effect of Humic Acid on the Sorption and Kinetic Desorption of Radiocaesium Ions on/from Na-Rectorite Studied by the Batch Technique and a Chelating Resin. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/026361706780810294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- W.S. Wu
- Radiochemistry Laboratory, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Q.H. Fan
- Radiochemistry Laboratory, Lanzhou University, Lanzhou, 730000, P. R. China
- Institute of Plasma Physics, Chinese Academy of Sciences, P. O. Box 1126, 230031, Hefei, P. R. China
| | - S. Lu
- Institute of Plasma Physics, Chinese Academy of Sciences, P. O. Box 1126, 230031, Hefei, P. R. China
- New Star Institute of Applied Technology, Huangshan Road, Hefei, Anhui, P. R. China
| | - S. Niu
- Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, P. R. China
| | - X. Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, P. O. Box 1126, 230031, Hefei, P. R. China
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Wen B, Niu S, Wang C, Zhang Y. Predictive Value of Primary Tumor Site for Locoregional Recurrence in Early Breast Cancer Patients With 1 to 3 Positive Axillary Lymphadenophy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen W, Niu S, Ma X, Zhang P, Gao Y, Fan Y, Pang H, Gong H, Shen D, Gu L, Zhang Y, Zhang X. RhoB Acts as a Tumor Suppressor That Inhibits Malignancy of Clear Cell Renal Cell Carcinoma. PLoS One 2016; 11:e0157599. [PMID: 27384222 PMCID: PMC4934884 DOI: 10.1371/journal.pone.0157599] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 05/31/2016] [Indexed: 01/09/2023] Open
Abstract
This study aims to investigate the biological role of RhoB in clear cell renal cell carcinoma (ccRCC). The expression of RhoB was examined in specimens of patients and cell lines by Western blot and Immunohistochemistry. The correlation between RhoB expression and clinicopathologic variables was also analyzed. The effects of RhoB on cell proliferation, cell cycle, cell apoptosis, and invasion/migration were detected by over-expression and knockdown of RhoB level in ccRCC cells via plasmids and RNAi. The results showed that RhoB was low-expressed in ccRCC surgical specimens and cell lines compared with adjacent normal renal tissues and normal human renal proximal tubular epithelial cell lines (HKC), and its protein expression level was significantly associated with the tumor pathologic parameter embracing tumor size(P = 0.0157), pT stage(P = 0.0035), TNM stage(P = 0.0024) and Fuhrman tumor grade(P = 0.0008). Further, over-expression of RhoB remarkably inhibited the cancer cell proliferation, colony formation and promoted cancer cell apoptosis, and aslo reduced the invasion and migration ability of ccRCC cells. Interestingly, up-regulation of RhoB could induce cell cycle arrest in G2/M phase and led to cell cycle regulators(CyclineB1,CDK1) and pro-apoptotic protein(casp3,casp9) aberrant expression. Moreover, knockdown of RhoB in HKC cells promoted cell proliferation and migration. Taken together, our study indicates that RhoB expression is decreased in ccRCC carcinogenesis and progression. Up-regulation of RhoB significantly inhibits ccRCC cell malignant phenotype. These findings show that RhoB may play a tumor suppressive role in ccRCC cells, raising its potential value in futural therapeutic target for the patients of ccRCC.
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Affiliation(s)
- Weihao Chen
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
- Department of Urology, General Hospital of the Navy, Beijing, China
| | - Shaoxi Niu
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Xin Ma
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Peng Zhang
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Yu Gao
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Yang Fan
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Haigang Pang
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Huijie Gong
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Donglai Shen
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Liangyou Gu
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Yu Zhang
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Xu Zhang
- The State Key Laboratory of Kidney Diseases, Department of Urology, Military Postgraduate Medical College, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
- * E-mail:
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Niu S, Zhang Y, Ma J, Wang J. WE-FG-207B-05: Iterative Reconstruction Via Prior Image Constrained Total Generalized Variation for Spectral CT. Med Phys 2016. [DOI: 10.1118/1.4957950] [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: 11/07/2022] Open
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An X, Guo L, Ren N, Wen C, Dong X, Niu S. A density functional theory analysis of the molecular hydrogen dissociation on Al n Pt (n = 1-12) clusters. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615040022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhao R, Duan G, Yang T, Niu S, Wang Y. Purification, Characterization and Antibacterial Mechanism of Bacteriocin from Lactobacillus Acidophilus XH1. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i6.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Shen D, Ma X, Zhang Y, Gao Y, Li X, Gu L, Gong H, Niu S, Zhang X. [Construction of a recombinant lentiviral vector for VHL and VHL shRNA and its effect on proliferation and apoptosis of renal cell carcinoma cells]. Nan Fang Yi Ke Da Xue Xue Bao 2015; 35:348-354. [PMID: 25818778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To construct a lentiviral expression vector for human VHL and its shRNA vector, and study the effect of VHL on proliferation and apoptosis of renal cell carcinoma cell lines. METHODS Lentiviral vectors pZsGreen1-VHL and pLL3.7-shVHL were constructed and transfected into 293T cells with 3 packaging plasmids by Lipofectamine(TM) 2000 reagent. The supernatant was collected to infect A498 and Caki-1 cells, respectively. VHL mRNA and protein levels were detected by RT-PCR and Western blotting, respectively. The effect of VHL on the proliferation, cell cycle and cell apoptosis were analyzed by MTS and flow cytometry. RESULTS The recombinant lentiviral vectors were successfully constructed. The proliferation of A498 cells with reconstituted wild-type VHL was significantly inhibited, while the proliferation of Caki-1 cells with VHL knockdown was significantly enhanced as compared with the control cells (P<0.05). VHL induced G0/G1-S cell cycle arrest. The apoptosis rate of A498 cells with reconstituted wild-type VHL was significantly increased while that of Caki-1 cells with VHL knockdown was significantly lowered compared with the control cells (P<0.05). CONCLUSION VHL can inhibit the proliferation and induce apoptosis of renal cell carcinoma cells.
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Affiliation(s)
- Donglai Shen
- Department of Urology/State Key Laboratory of Kidney Diseases, General Hospital of PLA, Chinese PLA Medical School, Beijing 100853, China.E-mail:
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Niu S, Ma X, Zhang Y, Gong H, Gao Y, Li X, Shen D, Wang L, Yao Y, Zhang X. [Expression of miR-223 in clear cell renal cell carcinoma and its significance]. Nan Fang Yi Ke Da Xue Xue Bao 2015; 35:338-342. [PMID: 25818776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the expression of miR-223 in clear cell renal cell carcinoma (ccRcc) and its clinical implications. METHODS Quantitative real-time PCR was employed to detect the levels of miR- 223 expression in ccRcc, pair-matched adjacent normal tissues and different renal cancer cell lines. Transwell migration essay and wound healing essay were used to evaluate the invasion and migration of renal cancer 786-O cells transfected with miR-223 mimics. MTT essay was used to measure the cell proliferation, and the cell cycle changes following the transfection were analyzed with flow cytometry. RESULTS Compared with the normal tissues, the cancer samples showed up-regulated miR-223 expression, which was associated with tumor size. In 786-O cell cultures, transfection with miR-223 mimics significantly enhanced cell migration (P<0.0001) and growth (P=0.006) and induced G1 cell cycle arrest. CONCLUSION miR-223 promotes renal cancer cell migration and proliferation and may serve as a potential therapeutic target for ccRcc.
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Affiliation(s)
- Shaoxi Niu
- Department of Urology/State Key Laboratory of Kidney Diseases, General Hospital of PLA, Beijing 100853, China.E-mail:
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Ma X, Gu L, Li H, Gao Y, Li X, Shen D, Gong H, Li S, Niu S, Zhang Y, Fan Y, Huang Q, Lyu X, Zhang X. Hypoxia-induced overexpression of stanniocalcin-1 is associated with the metastasis of early stage clear cell renal cell carcinoma. J Transl Med 2015; 13:56. [PMID: 25740019 PMCID: PMC4337255 DOI: 10.1186/s12967-015-0421-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 01/28/2015] [Indexed: 11/10/2022] Open
Abstract
Background Although metastasis of clear cell renal cell carcinoma (ccRCC) is predominantly observed in late stage tumors, early stage metastasis of ccRCC can also be found with indefinite molecular mechanism, leading to inappropriate clinical decisions and poor prognosis. Stanniocalcin-1 (STC1) is a glycoprotein hormone involved in calcium/phosphate homeostasis, which regulates various cellular processes in normal development and tumorigenesis. This study aimed to investigate the role and mechanism of regulation of STC1 in the metastasis of early stage ccRCC. Methods STC1 mRNA and protein expression was determined in ccRCC surgical specimens, RCC cell lines, and human kidney tubule epithelial cell line HKC by real-time polymerase chain reaction (RT-PCR) and western blotting. Immunohistochemistry staining (IHC) and immunofluorescence were also used to examine the expression and localization of STC1 in ccRCC tissues and cancer cells. Knockdown and overexpression studies were conducted in vitro in RCC cell lines using small interfering RNAs (siRNA) and lentiviral-mediated gene delivery to evaluate the role of STC1 in cell proliferation, anchorage-dependent and independent growth, cell cycle control, and migration and invasion. Results STC1 mRNA and protein expression were significantly up-regulated in tumors when compared with non-tumor tissues, with the greatest increase in expression observed in metastatic tissues. Clinicopathological analysis revealed that STC1 mRNA expression was associated with Fuhrman tumor grade (P = 0.008) and overall Tumor Node Metastasis (TNM) staging (P = 0.018). STC1 expression was elevated in T1 stage metastatic tumors when compared with localized tumors, and was positively correlated with average tumor diameter. Silencing of STC1 expression by Caki-1 and A498 resulted in the inhibition of cell proliferation, migration, and invasion, meanwhile down-regulation of STC1 impaired epithelial–mesenchymal transition (EMT) of ccRCC cell lines. Overexpression of STC1 in Caki-2 enhanced cell growth and proliferation but not migration and invasion. Further investigation identified hypoxia and HIF-1α as candidate regulators of STC1 expression. Conclusions Our findings demonstrate a role for STC1 in metastasis of early stage ccRCC and suggest that STC1 may be a biomarker of potential value both for the prognosis of this disease and for guiding clinical decisions regarding surgical strategies and adjuvant treatment. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0421-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xin Ma
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Liangyou Gu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Hongzhao Li
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Yu Gao
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Xintao Li
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Donglai Shen
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Huijie Gong
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Shichao Li
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Shaoxi Niu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Yu Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Yang Fan
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Qingbo Huang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Xiangjun Lyu
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
| | - Xu Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/PLA Medical School, Beijing, China.
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Abstract
The use of technologies to provide security screening for individuals and objects has been increasing rapidly, in keeping with the significant increase in security concerns worldwide. Within the spectrum of technologies, the use of ionizing radiation to provide backscatter and transmission screening capabilities has also increased. The Commission has previously made a number of statements related to the general topic of deliberate exposures of individuals in non-medical settings. This report provides advice on how the radiological protection principles recommended by the Commission should be applied within the context of security screening. More specifically, the principles of justification, optimisation of protection, and dose limitation for planned exposure situations are directly applicable to the use of ionising radiation in security screening. In addition, several specific topics are considered in this report, including the situation in which individuals may be exposed because they are concealed (‘stowaways’) in a cargo container or conveyance that may be subject to screening. The Commission continues to recommend that careful justification of screening should be considered before decisions are made to employ the technology. If a decision is made that its use is justified, the framework for protection as a planned exposure situation should be employed, including optimization of protection with the use of dose constraints and the appropriate provisions for authorisation and inspection.
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Zeng Z, Li Q, Piao X, Liu J, Zhao P, Xu X, Zhang S, Niu S. Forsythia suspensa extract attenuates corticosterone-induced growth inhibition, oxidative injury, and immune depression in broilers. Poult Sci 2014; 93:1774-81. [DOI: 10.3382/ps.2013-03772] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Wang Y, Lu WQ, Li DF, Liu XT, Wang HL, Niu S, Piao XS. Energy and ileal digestible amino Acid concentrations for growing pigs and performance of weanling pigs fed fermented or conventional soybean meal. Asian-Australas J Anim Sci 2014; 27:706-16. [PMID: 25050006 PMCID: PMC4093199 DOI: 10.5713/ajas.2013.13612] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 12/10/2013] [Accepted: 01/16/2014] [Indexed: 01/09/2023]
Abstract
A new strategy of co-inoculating Bacillus subtilis MA139 with Streptococcus thermophilus and Saccharomyces cerevisiae was used to produce fermented soybean meal (FSBM). Three experiments were conducted to determine the concentration of digestible energy (DE) and metabolizable energy (ME) (Exp. 1), apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of amino acids (AA) (Exp. 2), and feeding value (Exp. 3) of FSBM produced by this new strategy (NFSB) compared with soybean meal (SBM) and conventionally available FSBM (Suprotein). In Exp. 1, twenty-four barrows (initial body weight [BW] of 32.2 ±1.7 kg) were randomly allotted to 1 of 4 diets with 6 replicates per diet. A corn basal diet and 3 diets based on a mixture of corn and 1 of 3 soybean products listed above were formulated and the DE and ME contents were determined by the difference method. The results showed that there were no differences in DE and ME between SBM and either FSBM product (p>0.05). In Exp. 2, eight barrows (initial BW of 26.8±1.5 kg) were fitted with ileal T-cannulaes and used in a replicated 4×4 Latin square design. Three corn-starch-based diets were formulated using each of the 3 soybean products as the sole source of AA. A nitrogen-free diet was also formulated to measure endogenous losses of AA. The results showed that the SID of all AA except arginine and histidine was similar for NFSB and SBM (p>0.05), but Suprotein had greater (p<0.05) SID of most AA except lysine, aspartate, glycine and proline than NFSB. In Exp. 3, a total of 144 piglets (initial BW of 8.8±1.2 kg) were blocked by weight and fed 1 of 4 diets including a control diet with 24% SBM as well as diets containing 6% and 12% NFSB or 12% Suprotein added at the expense of SBM. During d 15 to 28, replacing SBM with 6% NFSB significantly improved average daily gain (ADG) and average daily feed intake (ADFI) (p<0.05) for nursery piglets. During the overall experiment, ADG of piglets fed diets containing 6% NFSB was significantly greater (p<0.05) than that of piglets fed SBM. In conclusion, fermentation with the new strategy did not affect the energy content or the AID and the SID of AA in SBM. However, inclusion of 6% NFSB in diets fed to nursery piglets improved performance after weaning likely as a result of better nutritional status and reduced immunological challenge.
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Affiliation(s)
| | | | | | | | | | | | - X. S. Piao
- Corresponding Author: X. S. Piao. Tel: +86-10-62733588, Fax: +86-10-62733688, E-mail:
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Li Q, Niu S, Wang R, Li Y, Zhang R, Zhu D. Mechanisms that underlie the induction of vasodilation in pulmonary artery by rutin. INT ANGIOL 2012; 31:557-564. [PMID: 23222934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM Rutin, also known as violaguercitrin, is a bioflavonoid and has a wide range of biological activity. However, the effect of this compound on arteries is not elucidated. Therefore, the objective of this study was to investigate the mechanism underling the induction of vasodilation in pulmonary artery (PA) by the natural product, rutin. METHODS Firstly, the isometric tension of the artery rings was studied in vitro with force-electricity transducers. In PA endothelium-intact (EI) rings, rutin elicited concentration-dependent relaxation after the PA rings were pre-contracted by phenylephrine (PE), but induced mesenteric artery (MA) vasoconstriction. Inhibited the endothelial nitric oxide synthase (eNOS) by NG-Nitro-L-arginine Methyl Ester (L-NAME) or removed the PA endothelium would decrease the relaxation effect of rutin. RESULTS The NO production was increased in rutin-treated bovine pulmonary artery endothelial cells (BPAECs) detected by fluorescent probe 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate (DAF-FM), which verify the functional study results. Moreover, western blot analysis revealed that rutin increased the phosphorylation of eNOS at Ser 1177, but decreased the phosphorylation of eNOS at Thr 495, and did not affect the overall expression of eNOS. CONCLUSION These results suggested that rutin-induced relaxation of PAs share NO-eNOS activation pathways, including phosphorylation of Ser 1177, and dephosphorylation at Thr 495. Rutin also has specific action because it exerts a vasodilator influence on the PAs but not MAs.
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Affiliation(s)
- Q Li
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University, China
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Ventruti A, Kazdoba TM, Niu S, D'Arcangelo G. Reelin deficiency causes specific defects in the molecular composition of the synapses in the adult brain. Neuroscience 2011; 189:32-42. [PMID: 21664258 DOI: 10.1016/j.neuroscience.2011.05.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 05/19/2011] [Accepted: 05/19/2011] [Indexed: 01/16/2023]
Abstract
The extracellular protein Reelin regulates radial neuronal migration in the embryonic brain, promotes dendrite outgrowth in the developing postnatal forebrain, and strengthens synaptic transmission in the adult brain. Heterozygous reeler mice expressing reduced levels of Reelin are grossly normal but exhibit behavioral and physiological abnormalities. We previously demonstrated that dendritic spine density is reduced in the developing hippocampus of these mice. In this study, we investigated the consequence of Reelin deficiency on synapse formation in adult heterozygous reeler mice using imaging and biochemical approaches. Using a reeler colony that expresses yellow fluorescent protein in selected neurons, we analyzed spine density in hippocampal area CA1 by confocal microscopy and found modest abnormalities in heterozygous reeler mice. However, biochemical analysis of synaptic composition revealed specific postsynaptic defects in scaffolding proteins, neurotransmitter receptors, and signaling proteins. Using whole brain homogenates and purified pre- and postsynaptic fractions, we found that the defects were localized to the postsynaptic compartment of heterozygous reeler synapses. Decreased levels of postsynaptic density-95 (PSD-95), the N-methyl d-aspartate (NMDA) receptor subunits NR2A and NR2B, and the phosphatase PTEN were found specifically in the postsynaptic density fraction obtained from these mice. Furthermore, we found that PSD-95, NR2A, and PTEN interact with each other at the synapse. Finally, we show that levels of NR2A are reduced in conditional Pten knock out mice, demonstrating that the PTEN phosphatase regulates NMDA receptor expression at the synapse in vivo. These studies may provide insights into the etiology of cognitive disorders associated with deficiencies in Reelin signaling and PTEN dysfunction.
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Affiliation(s)
- A Ventruti
- Department of Cell Biology and Neuroscience, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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Cheng C, Gao S, Zhao J, Niu S, Chen M, Li X, Qin J, Shi S, Guo Z, Shen A. Spatiotemporal patterns of postsynaptic density (PSD)-95 expression after rat spinal cord injury. Neuropathol Appl Neurobiol 2007; 34:340-56. [PMID: 18053028 DOI: 10.1111/j.1365-2990.2007.00917.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS Postsynaptic density (PSD)-95 is a scaffolding protein linking the N-methyl-D-aspartate receptor with neuronal nitric oxide synthase (nNOS), which contributes to many physiological and pathological actions. We here investigated whether PSD-95 was involved in the secondary response following spinal cord injury (SCI). METHODS Spinal cord contusion (SCC) and spinal cord transection (SCT) models at thoracic (T) segment 9 (T(9)) were established in adults rats. Real-time polymerase chain reaction, Western blot, immunohistochemistry and immunofluorescence were used to detect the temporal profile and spatial distribution of PSD-95 after SCI. The association between PSD-95 and nNOS in the injured cords was also assessed by coimmmunoprecipation and double immunofluorescent staining. RESULTS The mRNA and protein for PSD-95 expression were significantly increased at 2 h or 8 h, and then gradually declined to the baseline level, ultimately up-regulated again from 5 days to 7 days for its mRNA level and at 7 days or 14 days for its protein level after either SCC or SCT. PSD-95 immunoreactivity was found in neurones, oligodendrocytes and synaptic puncta of spinal cord tissues within 5 mm from the lesion site. Importantly, injury-induced expression of PSD-95 was colabelled by active caspase-3 (apoptotic marker), Tau-1 (the marker for pathological oligodendrocytes) and nNOS. CONCLUSIONS Accompanied by the spatio-temporal changes for PSD-95 expression, the association between PSD-95 and nNOS undergoes substantial alteration after SCI. These two molecules are likely to form a complex on apoptotic neurones and pathological oligodendrocytes, which may in turn be involved in the secondary response after SCI.
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Affiliation(s)
- C Cheng
- The Jiangsu Province Key Laboratory of Neuroregeneration, Department of Microbiology and Immunology, Nantong University (Former Nantong Medical College), Nantong, China
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Wang J, Liu Z, Niu S, Peng M, Wang D, Weng Z, Xiong Z. Natural Occurrence of Chilli veinal mottle virus on Capsicum chinense in China. Plant Dis 2006; 90:377. [PMID: 30786572 DOI: 10.1094/pd-90-0377c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An outbreak of a viral disease on chili pepper (Capsicum chinense Jacp. cv. Yellow Lantern) occurred in Hainan Province, China during 2003 and 2004. The disease was prevalent in five chili-producing counties surveyed. Leaves of infected plants initially displayed symptoms of dark green banding along veins and later became distorted with striking mosaic. Infected plants had reduced flower numbers and fruit set, resulting in a significant yield loss. The causative virus was characterized and identified as Chilli veinal mottle virus (ChiVMV) (3). An isolate of the virus was obtained via three single lesion passages through Chenopodium amaranticolor and was shown to reproduce the same symptoms on inoculated C. chinense cv. Yellow Lantern. Negative staining of crude extracts of the infected tissue and subsequent electron microscopy revealed flexuous rods of 12 to 13 × 750 nm, typical of a potyvirus. Pinwheel-like inclusion bodies were abundant in thin sections of infected leaves. Purified virus preparations contained one major protein of 32.8 kDa and one minor protein of 28 kDa when fractionated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Both of these protein bands were excised and subsequently analyzed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Multiple peptide fragments from both proteins were identified as arising from ChiVMV capsid protein (CP) (1,2). Therefore, the 32.8-kDa protein is the full-length ChiVMV CP and the 28-kDa protein is presumably a degradation product of the CP. The combined biological and molecular data provided strong evidence that the viral disease on C. chinense was caused by ChiVMV. To our knowledge, this is the first report of ChiVMV infection on C. chinense in China and the first report of C. amaranticolor as an experimental host for ChiVMV. References: (1) P. Chiemsombat et al. Arch. Virol. 143:1855, 1998. (2). J. Joseph and H. S. Savithri. Arch. Virol. 144:1679, 1999. (3) P. Siriwong et al. Plant Pathol. 44:718, 1995.
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Affiliation(s)
- J Wang
- State Key Laboratory for Tropical Crop Biotechnology, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, Haikou, Hainan, China 571101
| | - Z Liu
- State Key Laboratory for Tropical Crop Biotechnology, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, Haikou, Hainan, China 571101
| | - S Niu
- State Key Laboratory for Tropical Crop Biotechnology, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, Haikou, Hainan, China 571101
| | - M Peng
- State Key Laboratory for Tropical Crop Biotechnology, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, Haikou, Hainan, China 571101
| | - D Wang
- State Key Laboratory for Tropical Crop Biotechnology, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, Haikou, Hainan, China 571101
| | - Z Weng
- Division of Plant Pathology and Microbiology, Department of Plant Sciences, University of Arizona, Tucson, AZ 85749
| | - Z Xiong
- Division of Plant Pathology and Microbiology, Department of Plant Sciences, University of Arizona, Tucson, AZ 85749
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Jiang L, Niu S, Clines KL, Burke DJ, Sturgill TW. Analyses of the effects of Rck2p mutants on Pbs2pDD-induced toxicity in Saccharomyces cerevisiae identify a MAP kinase docking motif, and unexpected functional inactivation due to acidic substitution of T379. Mol Genet Genomics 2004; 271:208-19. [PMID: 14735355 DOI: 10.1007/s00438-003-0972-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2003] [Accepted: 12/12/2003] [Indexed: 01/27/2023]
Abstract
Rck2p is a Ser/Thr kinase that binds to, and is activated by, Hog1p. Expression of the MAP kinase kinase Pbs2pDD from a GAL1-driven plasmid hyperactivates the HOG MAP kinase pathway, and leads to cessation of growth. This toxic effect is reduced by deletion of RCK2. We studied the structural and functional basis for the role of Rck2p in mediating the growth arrest phenotype associated with overexpression of Pbs2pDD. Rck2p kinase activity is required for the effect, because Rck2p(Delta487-610), as well as full-length Rck2p, is toxic with Pbs2pDD, but kinase-defective versions of either protein with a K201R mutation are not. Thus, the C-terminal portion of Rck2p is not required provided the protein is activated by removal of the autoinhibitory domain. Relief of inhibition in Rck2p normally requires phosphorylation by Hog1p, and Rck2p contains a putative MAP kinase docking site (TILQR589R590KKVQ) in its C-terminal segment. The Rck2p double mutant R589A/R590A expressed from a centromeric plasmid did not detectably bind Hog1p-GFP and was functionally inactive in mediating the toxic effect of Pbs2pDD, equivalent to an RCK2 deletion. However, overexpression of Rck2p R589A/R590A from a multicopy plasmid restored function. In contrast, RCK2-K201R acted as a multicopy suppressor of PBS2DD, markedly reducing its toxicity. This suppressor activity required the K201R mutation, and the effect was largely lost when the docking site was mutated, suggesting suppression by inhibition of Hog1p functions. We also studied the effect of replacing the predicted T379 and established S520 phosphorylation sites in Rck2p by glutamic acid. Surprisingly, the T379E mutant markedly reduced Pbs2pDD toxicity, and toxicity was only partially rescued by S520E. Rck2 T379E was sufficiently inactive in an rck2Delta strain to allow some cells to survive PBS2DD toxicity even when overexpressed. The significance of these findings for our understanding of Rck2p function is discussed.
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Affiliation(s)
- L Jiang
- Department of Pharmacology, University of Virginia Health Sciences Center, PO Box 800735, Charlottesville, VA 22908, USA
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Niu S, Hall MB. Modeling the active sites in metalloenzymes 5. The heterolytic bond cleavage of H(2) in the [NiFe] hydrogenase of desulfovibrio gigas by a nucleophilic addition mechanism. Inorg Chem 2001; 40:6201-3. [PMID: 11703120 DOI: 10.1021/ic0107274] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [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: 11/30/2022]
Abstract
The H(2) activation catalyzed by an Fe(II)-Ni(III) model of the [NiFe] hydrogenase of Desulfovibrio gigas has been investigated by density functional theory (DFT/B3LYP) calculations on the neutral and anionic active site complexes, [(CO)(CN)(2)Fe(mu-SH)(2)Ni(SH)(SH(2))](0) and [(CO)(CN)(2)Fe(mu-SH)(2)Ni(SH)(2)](-). The results suggest that the reaction proceeds by a nucleophilic addition mechanism that cleaves the H-H bond heterolytically. The terminal cysteine residue Cys530 in the [NiFe] hydrogenase active site of the D. gigas enzyme plays a crucial role in the catalytic process by accepting the proton. The active site is constructed to provide access by this cysteine residue, and this role explains the change in activity observed when this cysteine is replaced by a selenocysteine. Furthermore, the optimized geometry of the transition state in the model bears a striking resemblance to the geometry of the active site as determined by X-ray crystallography.
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Affiliation(s)
- S Niu
- Contribution from HPCC Group, Environmental Molecular Science Laboratory, Battelle, Pacific Northwest National Laboratory, Richland, Washington 99352, USA
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Hu W, Liu J, Niu S, Liu M, Shi H, Wei L. Prevalence of CMV in arterial walls and leukocytes in patients with atherosclerosis. Chin Med J (Engl) 2001; 114:1208-10. [PMID: 11729522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
OBJECTIVE To investigate the association of cylomegalovirus with atherosclerosis. METHODS The presence of cylomegalovirus (CMV) nucleic acids was demonstrated in carotid and coronary arteries of patients with and without atherosclerosis by polymerase chain reaction (PCR). CMV was detected by PCR in the blood of patients with and without atherosclerosis. RESULTS 83.3%-86.7% of the samples obtained from atherosclerotic patient arterial walls were shown to contain viral nucleic acids (CMV), CMV could be found among 6.7% of patients' arterial wall without atherosclerosis, significant difference can be found between them (P < 0.01). In blood CMV could be found in 42.4% of patients with atherosclerosis, in the control group, only 3% of samples had CMV, P < 0.01. CONCLUSION CMV plays an important role in the pathologic process of the atherosclerosis and the atherosclerotic cerebral infarction.
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Affiliation(s)
- W Hu
- Department of Neurology, Beijing Red Cross Chaoyang Hospital, Capital University of Medical Sciences, Beijing 100020, China
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