101
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Li Z, Zhai L, Ge Y, Huang Z, Shi Z, Liu J, Zhai W, Liang J, Zhang H. Wet-chemical synthesis of two-dimensional metal nanomaterials for electrocatalysis. Natl Sci Rev 2021; 9:nwab142. [PMID: 35591920 PMCID: PMC9113131 DOI: 10.1093/nsr/nwab142] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/01/2021] [Accepted: 07/25/2021] [Indexed: 12/17/2022] Open
Abstract
Two-dimensional (2D) metal nanomaterials have gained ever-growing research interest owing to their fascinating physicochemical properties and promising application, especially in the field of electrocatalysis. In this review, we briefly introduce the recent advances in wet-chemical synthesis of 2D metal nanomaterials. Subsequently, the catalytic performances of 2D metal nanomaterials in a variety of electrochemical reactions are illustrated. Finally, we summarize current challenges and highlight our perspectives on preparing high-performance 2D metal electrocatalysts.
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Affiliation(s)
- Zijian Li
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Yiyao Ge
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Zhiqi Huang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Jiawei Liu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639665, Singapore
| | - Wei Zhai
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Jinzhe Liang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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102
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Zhou K, Xu W, Yu Y, Zhai W, Yuan Z, Dai K, Zheng G, Mi L, Pan C, Liu C, Shen C. Tunable and Nacre-Mimetic Multifunctional Electronic Skins for Highly Stretchable Contact-Noncontact Sensing. Small 2021; 17:e2100542. [PMID: 34174162 DOI: 10.1002/smll.202100542] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [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: 01/27/2021] [Revised: 04/10/2021] [Indexed: 05/15/2023]
Abstract
Electronic skins (e-skins) have attracted great attention for their applications in disease diagnostics, soft robots, and human-machine interaction. The integration of high sensitivity, low detection limit, large stretchability, and multiple stimulus response capacity into a single e-skin remains an enormous challenge. Herein, inspired by the structure of nacre, an ultra-stretchable and multifunctional e-skin with tunable strain detection range based on nacre-mimetic multi-layered silver nanowires /reduced graphene oxide /thermoplastic polyurethane mats is fabricated. The e-skin possesses extraordinary strain response performance with a tunable detection range (50 to 200% strain), an ultralow response limit (0.1% strain), a high sensitivity (gauge factor up to 1902.5), a fast response time (20 ms), and an excellent stability (stretching/releasing test of 11 000 cycles). These excellent response behaviors enable the e-skin to accurately monitor full-range human body motions. Additionally, the e-skin can detect relative humidity quickly and sensitively through a reversible physical adsorption/desorption of water vapor, and the assembled e-skin array exhibits excellent performance in noncontact sensing. The tunable and multifunctional e-skins show promising applications in motion monitoring and contact-noncontact human machine interaction.
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Affiliation(s)
- Kangkang Zhou
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Wangjiehao Xu
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Yunfei Yu
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Wei Zhai
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Zuqing Yuan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Kun Dai
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Guoqiang Zheng
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Liwei Mi
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, Henan, 451191, China
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Chuntai Liu
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Changyu Shen
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, China
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103
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Lai Z, He Q, Tran TH, Repaka DVM, Zhou DD, Sun Y, Xi S, Li Y, Chaturvedi A, Tan C, Chen B, Nam GH, Li B, Ling C, Zhai W, Shi Z, Hu D, Sharma V, Hu Z, Chen Y, Zhang Z, Yu Y, Renshaw Wang X, Ramanujan RV, Ma Y, Hippalgaonkar K, Zhang H. Metastable 1T'-phase group VIB transition metal dichalcogenide crystals. Nat Mater 2021; 20:1113-1120. [PMID: 33859384 DOI: 10.1038/s41563-021-00971-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
Metastable 1T'-phase transition metal dichalcogenides (1T'-TMDs) with semi-metallic natures have attracted increasing interest owing to their uniquely distorted structures and fascinating phase-dependent physicochemical properties. However, the synthesis of high-quality metastable 1T'-TMD crystals, especially for the group VIB TMDs, remains a challenge. Here, we report a general synthetic method for the large-scale preparation of metastable 1T'-phase group VIB TMDs, including WS2, WSe2, MoS2, MoSe2, WS2xSe2(1-x) and MoS2xSe2(1-x). We solve the crystal structures of 1T'-WS2, -WSe2, -MoS2 and -MoSe2 with single-crystal X-ray diffraction. The as-prepared 1T'-WS2 exhibits thickness-dependent intrinsic superconductivity, showing critical transition temperatures of 8.6 K for the thickness of 90.1 nm and 5.7 K for the single layer, which we attribute to the high intrinsic carrier concentration and the semi-metallic nature of 1T'-WS2. This synthesis method will allow a more systematic investigation of the intrinsic properties of metastable TMDs.
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Affiliation(s)
- Zhuangchai Lai
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Thu Ha Tran
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - D V Maheswar Repaka
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, China
| | - Ying Sun
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
- International Center for Computational Method & Software, College of Physics, Jilin University, Changchun, China
| | - Shibo Xi
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
| | - Yongxin Li
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
| | - Apoorva Chaturvedi
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Bo Chen
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Gwang-Hyeon Nam
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Bing Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Chongyi Ling
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Wei Zhai
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Dianyi Hu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Vinay Sharma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Zhaoning Hu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Zhicheng Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, China
| | - Yifu Yu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Institute of Molecular Plus, Tianjin University, Tianjin, China
| | - Xiao Renshaw Wang
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore
| | - Raju V Ramanujan
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Yanming Ma
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
- International Center for Computational Method & Software, College of Physics, Jilin University, Changchun, China
- International Center of Future Science, Jilin University, Changchun, China
| | - Kedar Hippalgaonkar
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China.
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104
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Zhai W, Wang J, He N, Zhou J, Wang J, Xue Y, Yang Z, Chen Y, Hui J, Haung J, Kong W, Haung Y, Xue W. DNA Damage Repair (DDR) gene and VHL concurrent alterations in advanced clear cell Renal Cell Carcinoma (ccRCC) are association with good progression free survival with tyrosine kinase inhibitor therapy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00923-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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105
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Li X, Yu X, Chua JW, Lee HP, Ding J, Zhai W. Microlattice Metamaterials with Simultaneous Superior Acoustic and Mechanical Energy Absorption. Small 2021; 17:e2100336. [PMID: 33984173 DOI: 10.1002/smll.202100336] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/29/2021] [Indexed: 05/22/2023]
Abstract
The advent of 3D printing brought about the possibilities of microlattice metamaterials as advanced materials with the potentials to surpass the functionalities of traditional materials. Sound absorbing materials which are also tough and lightweight are of particular importance as practical engineering materials. There are however a lack of attempts on the study of metamaterials multifunctional for both purposes. Herein, we present four types of face-centered cubic based plate and truss microlattices as novel metamaterials with simultaneous excellent sound and mechanical energy absorption performance. High sound absorption coefficients nearing 1 and high specific energy absorption of 50.3 J g-1 have been measured. Sound absorption mechanisms of microlattices are proposed to be based on a "cascading resonant cells theory", an extension of the Helmholtz resonance principle that we have conceptualized herein. Characteristics of absorption coefficients are found to be essentially geometry limited by the pore and cavity morphologies. The excellent mechanical properties in turn derive from both the approximate membrane stress state of the plate architecture and the excellent ductility and strength of the base material. Overall, this work presents a new concept on the specific structural design and materials selection for architectured metamaterials with dual sound and mechanical energy absorption capabilities.
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Affiliation(s)
- Xinwei Li
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Xiang Yu
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore
| | - Jun Wei Chua
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Heow Pueh Lee
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Jun Ding
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
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106
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Hu G, Ma J, Zhang J, Chen Y, Liu H, Huang Y, Zheng J, Xu Y, Xue W, Zhai W. Hypoxia-induced lncHILAR promotes renal cancer cell invasion and metastasis via ceRNA for the miR-613/206/1-1-3p/Jagged-1/Notch/CXCR4 signaling pathway. Mol Ther 2021; 29:2979-2994. [PMID: 34058384 DOI: 10.1016/j.ymthe.2021.05.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [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: 10/24/2020] [Revised: 03/05/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022] Open
Abstract
Hypoxia has been identified as a common driving factor that contributes to tumor progression, including invasion and metastasis. However, the underlying mechanisms of enhanced invasion and metastasis under hypoxia remain unclear. A hypoxic microenvironment promoted invasion and metastasis of RCC by upregulating the expression of LOC100506178, which we named Hypoxia-Induced lncRNA Associated with Renal Cell Carcinoma (lncHILAR). Knockdown of lncHILAR inhibited cell invasion and migration while overexpression of lncHILAR conversely facilitated cell invasion and migration of RCC cells. Notably, hypoxic RCC cells secreted exosomes packaged with lncHILAR which were taken up by normoxic RCC cells and then drove normoxic cell invasion. Mechanistically, hypoxia-induced-lncHILAR elevated RCC invasion and metastasis by acting as a competing endogenous (ce)RNA for miR-613/206/1-1-3p, which led to the upregulation of Jagged-1 and C-X-C Motif Chemokine Receptor 4 (CXCR4). Activation of the of Jagged-1/Notch/CXCR4 axis induced RCC metastasis. Hypoxia-induced lncHILAR promotes RCC cell invasion and metastasis via ceRNA for the miR-613/206/1-1-3p/Jagged-1/Notch/CXCR4 axis. The novel lncHILAR may thus serve as a potential biomarker and therapeutic target in RCC.
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Affiliation(s)
- Guanghui Hu
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Junjie Ma
- Department of Urology, Shanghai General Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Jin Zhang
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yonghui Chen
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Huan Liu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Yiran Huang
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Junhua Zheng
- Department of Urology, Shanghai General Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Yunfei Xu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China.
| | - Wei Xue
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
| | - Wei Zhai
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
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107
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Wu WH, Eskin DG, Priyadarshi A, Subroto T, Tzanakis I, Zhai W. New insights into the mechanisms of ultrasonic emulsification in the oil-water system and the role of gas bubbles. Ultrason Sonochem 2021; 73:105501. [PMID: 33676157 PMCID: PMC7933810 DOI: 10.1016/j.ultsonch.2021.105501] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/31/2021] [Accepted: 02/17/2021] [Indexed: 05/06/2023]
Abstract
Ultrasonic emulsification (USE) assisted by cavitation is an effective method to produce emulsion droplets. However, the role of gas bubbles in the USE process still remains unclear. Hence, in the present paper, high-speed camera observations of bubble evolution and emulsion droplets formation in oil and water were used to capture in real-time the emulsification process, while experiments with different gas concentrations were carried out to investigate the effect of gas bubbles on droplet size. The results show that at the interface of oil and water, gas bubbles with a radius larger than the resonance radius collapse and sink into the water phase, inducing (oil-water) blended liquid jets across bubbles to generate oil-in-water-in-oil (O/W/O) and water-in-oil (W/O) droplets in the oil phase and oil-in-water (O/W) droplets in the water phase, respectively. Gas bubbles with a radius smaller than the resonance radius at the interface always move towards the oil phase, accompanied with the generation of water droplets in the oil phase. In the oil phase, gas bubbles, which can attract bubbles nearby the interface, migrate to the interface of oil and water due to acoustic streaming, and generate numerous droplets. As for the gas bubbles in the water phase, those can break neighboring droplets into numerous finer ones during bubble oscillation. With the increase in gas content, more bubbles undergo chaotic oscillation, leading to smaller and more stable emulsion droplets, which explains the beneficial role of gas bubbles in USE. Violently oscillating microbubbles are, therefore, found to be the governing cavitation regime for emulsification process. These results provide new insights to the mechanisms of gas bubbles in oil-water emulsions, which may be useful towards the optimization of USE process in industry.
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Affiliation(s)
- W H Wu
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - D G Eskin
- Brunel Centre for Advanced Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, United Kingdom; Tomsk State University, Tomsk 634050, Russian Federation.
| | - A Priyadarshi
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, United Kingdom
| | - T Subroto
- Brunel Centre for Advanced Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, United Kingdom
| | - I Tzanakis
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, United Kingdom; Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom
| | - W Zhai
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, PR China.
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108
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Dilawari A, Rentscher KE, Zhai W, Zhou X, Ahles TA, Ahn J, Bethea TN, Carroll JE, Cohen HJ, Graham DA, Jim H, McDonald B, Nakamura ZM, Patel SK, Root JC, Small BJ, Saykin AJ, Tometich D, Van Dyk K, Mandelblatt JS. Medical Care Disruptions During the First Six-Months of the COVID19 Pandemic: The Experience of Older Breast Cancer Survivors. Res Sq 2021. [PMID: 33880464 PMCID: PMC8057243 DOI: 10.21203/rs.3.rs-416077/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Purpose. Older cancer survivors required medical care during the COVID-19 pandemic despite infection risks, but there are limited data on medical care in this age group. Methods. We evaluated care disruptions in a longitudinal cohort of non-metastatic breast cancer survivors ages 60–98 from five US regions (n=321). Survivors completed a web-based or telephone survey from May 27, 2020 to September 11, 2020. Care disruptions included self-reported interruptions in ability to see doctors, receive treatment or supportive therapies, or fill prescriptions. Logistic regression models evaluated bivariate and multivariate associations between care disruptions and education, medical, psychosocial and COVID-19-related factors. Multivariate models included age, county COVID-19 rates, comorbidity and post-diagnosis time. Results. There was a high response rate (n=262, 81.6%). Survivors were 32.2 months post-diagnosis (SD 17.5, range 4–73). Nearly half (48%) reported a medical disruption. The unadjusted odds of care disruptions were significantly higher with more education (OR 1.23 per one-year increase, 95% CI 1.09–1.39, p =0.001) and greater depression (OR 1.04 per one-point increase in CES-D score, CI 1.003–1.08, p=0.033); tangible support decreased the odds of disruptions (OR 0.99, 95% CI 0.97–0.99 per one-point increase, p=0.012). There was a trend for associations between disruptions and comorbidity (unadjusted OR 1.13 per 1 added comorbidity, 95% CI 0.99–1.29, p=0.07). Adjusting for covariates, only higher education (p=0.001) and tangible social support (p=0.006) remained significantly associated with having care disruptions. Conclusions. Older breast cancer survivors reported high rates of medical care disruptions during the COVID-19 pandemic and psychosocial factors were associated with care disruptions.
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Affiliation(s)
- A Dilawari
- Medstar Washington Hospital Center Washington, DC.,Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - K E Rentscher
- Cousins Center for Psychoneuroimmunology, University of California, Los Angeles, Los Angeles, CA.,Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA
| | - W Zhai
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC.,Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, DC
| | - X Zhou
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC.,Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, DC
| | - T A Ahles
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - J Ahn
- Cousins Center for Psychoneuroimmunology, University of California, Los Angeles, Los Angeles, CA
| | - T N Bethea
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - J E Carroll
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA.,Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, DC
| | - H J Cohen
- Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, NC
| | - D A Graham
- John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ
| | - Hsl Jim
- Moffitt Cancer Center, Tampa, FL
| | - B McDonald
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine and Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN
| | - Z M Nakamura
- Department of Psychiatry, University of North Carolina-Chapel Hill, Chapel Hill, NC
| | - S K Patel
- City of Hope National Medical Center, Los Angeles, CA
| | - J C Root
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - B J Small
- University of South Florida, Tampa, FL
| | - A J Saykin
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine and Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN
| | | | - K Van Dyk
- Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, DC
| | - J S Mandelblatt
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
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109
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Zhang X, To KV, Jarvis TR, Campbell YL, Hendrix JD, Suman SP, Li S, Antonelo DS, Zhai W, Chen J, Zhu H, Schilling MW. Broiler genetics influences proteome profiles of normal and woody breast muscle. Poult Sci 2021; 100:100994. [PMID: 33610896 PMCID: PMC7905473 DOI: 10.1016/j.psj.2021.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/22/2020] [Accepted: 01/07/2021] [Indexed: 01/28/2023] Open
Abstract
Wooden or woody breast (WB) is a myopathy of the pectoralis major in fast-growing broilers that influences the quality of breast meat and causes an economic loss in the poultry industry. The objective of this study was to evaluate growth and proteome differences between 5 genetic strains of broilers that yield WB and normal breast (NB) meat. Eight-week-old broilers were evaluated for the WB myopathy and divided into NB and WB groups. Differential expression of proteins was analyzed using 2-dimensional gel electrophoresis and LC-MS/MS to elucidate the mechanism behind the breast myopathy because of the genetic backgrounds of the birds. The percentages of birds with WB were 61.3, 68.8, 46.9, 45.2, and 87.5% for strains 1-5, respectively, indicating variability in WB myopathy among broiler strains. Birds from strains 1, 3, and 5 in the WB group were heavier than those in the NB group (P < 0.05). Woody breast meat from all strains were heavier than NB meat (P < 0.05). Within WB, strain 5 had a greater breast yield than strains 1, 3, and 4 (P < 0.0001). Woody breast from strains 2, 3, 4, and 5 had a greater breast yield than NB (P < 0.05). Six proteins were more abundant in NB of strain 5 than those of strains 2, 3, and 4, and these proteins were related to muscle growth, regeneration, contraction, apoptosis, and oxidative stress. Within WB, 14 proteins were differentially expressed between strain 5 and other strains, suggesting high protein synthesis, weak structural integrity, intense contraction, and oxidative stress in strain 5 birds. The differences between WB from strain 3 and strains 1, 2, and 4 were mainly glycolytic. In conclusion, protein profiles of broiler breast differed because of both broiler genetics and the presence of WB myopathy.
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Affiliation(s)
- Xue Zhang
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - K Virellia To
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Tessa R Jarvis
- Department of Animal Science, Iowa State University, Ames 50011, USA
| | - Yan L Campbell
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Jasmine D Hendrix
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Surendranath P Suman
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546, USA
| | - Shuting Li
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546, USA
| | - Daniel S Antonelo
- Department of Animal Nutrition and Production, College of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga/SP 13635-900, Brazil
| | - Wei Zhai
- Department of Poultry Science, Mississippi State University, Mississippi State 39762, USA
| | - Jing Chen
- Proteomics Core Facility, University of Kentucky, Lexington 40506, USA
| | - Haining Zhu
- Proteomics Core Facility, University of Kentucky, Lexington 40506, USA
| | - M Wes Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA.
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110
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Fu X, Zhai W. Examining the spatial and temporal relationship between social vulnerability and stay-at-home behaviors in New York City during the COVID-19 pandemic. Sustain Cities Soc 2021; 67:102757. [PMID: 33558841 PMCID: PMC7857012 DOI: 10.1016/j.scs.2021.102757] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 05/18/2023]
Abstract
Social distancing and particularly staying at home are effective public health responses to the COVID-19 pandemic. The sheer scale of behavior changes across a mass population scale is unprecedented and will undoubtedly cause disproportionate hardships for certain vulnerable groups of population and marginalized communities during different periods of the pandemic. However, at the community level, few studies have considered the spatial and temporal variations in such public health behavior changes during this pandemic. We applied a geographically and temporally weighted regression (GTWR) to analyze the spatiotemporal pattern of community stay-at-home behaviors against social vulnerability indicators at the census tract level in New York City from March to August 2020. Our findings are generally supporting the conventional wisdom of social vulnerability yet they also offer new insights. Despite the spatial variations in the effects of social vulnerability on stay-at-home behaviors, people from different vulnerable groups are also exhibiting varying reactions to the pandemic over the duration of this study, thereby highlighting the importance of understanding the spatiotemporal pattern of public health behaviors to develop an effective policy response to avoid the risk of deepening inequalities and to promote a just and sustainable urban future.
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Affiliation(s)
- Xinyu Fu
- Environmental Planning Program, Faculty of Arts and Social Sciences, University of Waikato, Hamilton, New Zealand
| | - Wei Zhai
- Department of Geography, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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111
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Yuan F, Li M, Liu R, Zhai W, Qi B. Social media for enhanced understanding of disaster resilience during Hurricane Florence. International Journal of Information Management 2021. [DOI: 10.1016/j.ijinfomgt.2020.102289] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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112
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Poudel S, Zhang L, Tabler GT, Lin J, Zhai W. Effects of riboflavin and Bacillus subtilis on internal organ development and intestinal health of Ross 708 male broilers with or without coccidial challenge. Poult Sci 2021; 100:100973. [PMID: 33588345 PMCID: PMC7896149 DOI: 10.1016/j.psj.2020.12.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 11/28/2022] Open
Abstract
In a companion study, we found that inclusion of different doses of riboflavin affected growth performance of Ross 708 male broilers' responses to coccidial challenge (by 5 Eimeria spp on day 14 of age) and dietary Bacillus subtilis (B. subtilis) supplementation. The current study was conducted to further test whether supplementation of B. subtilis and riboflavin will reduce negative impact and inflammation caused by Eimeria spp proliferation and help proper function of internal organs. A total of 1,248 Ross × Ross 708 male broiler chicks were randomly placed in 96 floor pens (8 blocks, 12 treatments). Treatments were arranged in a 3 (riboflavin) × 2 (B. subtilis) × 2 (Coccidial challenge) factorial arrangement in a randomized complete block design. Coccidial challenge reduced the weight of sampled birds on day 27 and day 36 and increased the relative weights of the internal organs of proventriculus, duodenum, jejunum, ileum, and spleen to BW on day 27, which may be because of inflammation caused by proliferation of Eimeria spp. The increased relative weights of duodenum, jejunum, ileum, and spleen on coccidial challenged birds were lost on day 36. Correlation analysis also indicated that the jejunum weight was positively related to villus height, Eimeria acervulina, and Eimeria maxima on day 27 but was not on day 36. The loss of the positive relationships may be because of recovery of the birds from coccidiosis on day 36. Even though the coccidial challenge and riboflavin interactively affected feed conversion ratio and BW gain and supplementation of dietary B. subtilis reduced mortality from day 35 to 42 in the companion study, the same response of internal organs was not observed in the current study. Coccidial challenge compromised development of internal organs of Ross 708 male broilers at an early age, but the negative effects subsided with age of birds rather than supplementation of riboflavin and B. subtilis at current tested levels under our experimental set up.
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Affiliation(s)
- Sabin Poudel
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA
| | - Li Zhang
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA
| | - George T Tabler
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA
| | - Jun Lin
- Department of Animal Science, University of Tennessee, Knoxville, TN, USA
| | - Wei Zhai
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA.
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113
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Zhang X, Zhang L, Li X, White S, Campbell YL, Ruiz AA, To KV, Zhai W, Schilling MW. Cecal microbiota contribute to the development of woody breast myopathy. Poult Sci 2021; 100:101124. [PMID: 33951593 PMCID: PMC8113783 DOI: 10.1016/j.psj.2021.101124] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/07/2021] [Accepted: 02/26/2021] [Indexed: 12/16/2022] Open
Abstract
The objective of this study was to characterize the bacterial diversity of cecal microbiota in broilers related to breast phenotype, diet, and genetic strain. Broilers from 2 genetic strains (120 birds/strain) were fed a control diet (15 birds/pen) and an amino acid reduced diet (15 birds/pen, digestible lysine, total sulfur amino acids, and threonine reduced by 20% compared to the control diet). At 8 wk of age, 4 male broilers with normal breast (NB, 1 chick per pen) and 4 male broilers with woody breast (WB, 1 chick per pen) were selected for each treatment (strain × diet). The DNA of cecal samples was extracted and the 16S rRNA genes were sequenced and analyzed. There were no differences (P > 0.05) in the alpha diversity of gut microbiota between 2 phenotypes (NB vs. WB), 2 strains, or 2 diets (control vs. reduced). However, principal coordinate analysis plots (beta diversity) revealed that there were composition differences in samples between the 2 phenotypes (P = 0.001) and the 2 diets (P = 0.024). The most abundant phyla in all samples were Firmicutes, followed by Bacteroidetes and Proteobacteria. There were differences (false discovery rate, FDR < 0.05) in bacterial relative abundance between phenotypes and between diet treatments, but not (FDR > 0.05) between the 2 genetic strains. Selenomonas bovis (12.6%) and Bacteroides plebeius (12.3%) were the top 2 predominant bacteria in the ceca of WB birds; however, the relative abundances of these 2 bacteria were only 5.1% and 1.2% in NB birds, respectively. Function analysis predicted that the metabolic activities differed (q < 0.05) only between phenotypes. The microbiota of WB birds was characterized as reduced glycolysis and urea cycle but increased tricarboxylic acid (TCA) cycles, sugar degradation, and purine and pyrimidine nucleotides biosynthesis. Further studies are needed to investigate if WB incidence could be reduced by regulating gut microbiota and the potential mechanism that leads to decreased WB incidence.
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Affiliation(s)
- Xue Zhang
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Li Zhang
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Xiaofei Li
- Department of Agricultural Economics, Mississippi State University, Mississippi State, MS 39762, USA
| | - Shecoya White
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Yan L Campbell
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Angelica Abdallah Ruiz
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Kezia V To
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Wei Zhai
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - M Wes Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA.
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Tan A, Ong B, Koh T, Chen J, Oo H, Lai G, Tan W, Ang M, Kanesvaran R, Ng Q, Jain A, Rajasekaran T, Zhai W, Skanderup A, Lim K, Tan E, Lim W, Tan D, Takano A. P38.03 Immunohistochemical, Histologic and Genomic Characterisation of Early Stage Pulmonary Invasive Mucinous Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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115
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Gong D, Sun Y, Guo C, Sheu T, Zhai W, Zheng J, Chang C. Androgen receptor decreases renal cell carcinoma bone metastases via suppressing the osteolytic formation through altering a novel circEXOC7 regulatory axis. Clin Transl Med 2021; 11:e353. [PMID: 33783995 PMCID: PMC7989709 DOI: 10.1002/ctm2.353] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Clear cell renal cell carcinoma (ccRCC) has gender differences, with the androgen receptor (AR) linked positively with metastasis to the lung. Its linkage to ccRCC bone metastases (RBMs), however, remains unclear. METHODS In the current study, five human RCC and five RCC bone metastasis tissues were deeply sequenced using Arraystar human circRNA V2.0 microarray. We conducted gain-of-function screening in vitro and in vivo to elucidate the AR's role in the RBM. Loss/gain-of-function was also implemented to verify the roles of related non-coding RNAs and proteins. RESULTS We uncovered that RBM also has a gender difference showing higher AR expression may be linked to fewer RBMs, which might involve suppressing osteolytic formation. Mechanism dissection indicates that AR can decrease the circular RNA EXOC7 (circEXOC7), expression via enhancing transcription of DHX9, a regulatory protein in circRNA biogenesis. The circEXOC7 can sponge/suppress miR-149-3p resulting in suppressing the CSF1 expression by directly binding to the 3'UTR region of CSF1 mRNA. Results from clinical epidemiological surveys also found that AR has a positive correlation with miR-149-3p and a negative correlation with CSF1 in AR-positive ccRCC tissues. Preclinical studies with Balb/c nude mouse model also validated that targeting this newly verified AR/DHX9/circEXOC7/miR-149-3p/CSF1 signaling via altering circEXOC7 or AR could lead to suppressing the RBM progression. CONCLUSIONS These data showed that AR/DHX9/circEXOC7/miR-149-3p/CSF1 signaling acts as a valuable feature in the bone metastasis of renal cancer, which may benefit in suppressing the RBM progression.
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MESH Headings
- Animals
- Bone Neoplasms/genetics
- Bone Neoplasms/prevention & control
- Bone Neoplasms/secondary
- Carcinoma, Renal Cell/genetics
- Carcinoma, Renal Cell/metabolism
- Carcinoma, Renal Cell/pathology
- Cell Line, Tumor
- Disease Models, Animal
- Female
- Gene Expression Regulation, Neoplastic/genetics
- Humans
- Kidney Neoplasms/genetics
- Kidney Neoplasms/metabolism
- Kidney Neoplasms/pathology
- Male
- Mice
- Mice, Inbred BALB C
- Osteolysis/genetics
- Osteolysis/metabolism
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Signal Transduction
- Vesicular Transport Proteins/genetics
- Vesicular Transport Proteins/metabolism
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Affiliation(s)
- Dongkui Gong
- Department of UrologyThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsuChina
- George Whipple Lab for Cancer ResearchDepartments of PathologyUrology, Radiation Oncology and The Wilmot Cancer InstituteUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | - Yin Sun
- George Whipple Lab for Cancer ResearchDepartments of PathologyUrology, Radiation Oncology and The Wilmot Cancer InstituteUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | - Changcheng Guo
- George Whipple Lab for Cancer ResearchDepartments of PathologyUrology, Radiation Oncology and The Wilmot Cancer InstituteUniversity of Rochester Medical CenterRochesterNew YorkUSA
- Department of UrologyShanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina
| | - Tzong‐jen Sheu
- Department of Orthopedics and Center for Musculoskeletal ResearchUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | - Wei Zhai
- George Whipple Lab for Cancer ResearchDepartments of PathologyUrology, Radiation Oncology and The Wilmot Cancer InstituteUniversity of Rochester Medical CenterRochesterNew YorkUSA
- Department of UrologyRenji HospitalSchool of Medicine in Shanghai Jiao Tong UniversityShanghaiChina
| | - Junhua Zheng
- Department of UrologyShanghai General HospitalShanghai Jiaotong University School of MedicineShanghaiChina
| | - Chawnshang Chang
- George Whipple Lab for Cancer ResearchDepartments of PathologyUrology, Radiation Oncology and The Wilmot Cancer InstituteUniversity of Rochester Medical CenterRochesterNew YorkUSA
- Sex Hormone Research CenterChina Medical University/HospitalTaichungTaiwan
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Tan A, Chua K, Teng Y, Takano A, Alvarez J, Nahar R, Rohatgi N, Lai G, Aung Z, Yeong J, Lim K, Naeini M, Kassam I, Jain A, Tan W, Gogna A, Too C, Kanesvaran R, Ng Q, Ang M, Rajasekaran T, Devanand A, Phua G, Tan B, Lee Y, Wang L, Teo A, Khng A, Lim M, Suteja L, Toh C, Lim W, Iyer N, Tam W, Tan E, Zhai W, Hillmer A, Skanderup A, Tan D. MA13.08 Genomic and Transcriptomic Features of Distinct Resistance Trajectories in EGFR Mutant Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.269] [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: 11/17/2022]
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117
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Yu Y, Zheng G, Dai K, Zhai W, Zhou K, Jia Y, Zheng G, Zhang Z, Liu C, Shen C. Hollow-porous fibers for intrinsically thermally insulating textiles and wearable electronics with ultrahigh working sensitivity. Mater Horiz 2021; 8:1037-1046. [PMID: 34821334 DOI: 10.1039/d0mh01818j] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Wearable smart devices should be flexible and functional to imitate the warmth and sensing functions of human skin or animal fur. Despite the recent great progress in wearable smart devices, it is still challenging to achieve the required multi-functionality. Here, stretchable hollow-porous fibers with self-warming ability are designed, and the properties of electrical heating, strain sensing, temperature sensing and pressure sensing are achieved. The hollow-porous TPU fiber possesses an ultra-high stretchability (1468%), and the textiles woven from the fibers present a splendid thermal insulation property (the absolute value difference in temperature |ΔT| = 68.5 and 44 °C at extreme temperatures of 115 and -40.0 °C). Importantly, after conductive filler decoration, the fiber-based strain sensor exhibits one of the highest reported gauge factor (2.3 × 106) towards 100% strain in 7200 working stretch-release cycles. A low detection limit of 0.5% strain is also achieved. Besides, the fibers can be heated to 40 °C in 18 s at a small voltage of 2 V as an electrical heater. The assembled thermal sensors can monitor the temperature from 30 to 90 °C in real time, and the fiber-based capacitive type pressure sensor exhibits good sensing performance under force from 1 to 25 N. The hollow-porous fiber based all-in-one integrated wearable systems illustrate promising prospects for next generation electronic skins to detect human motions and body temperature with thermal therapy and inherent self-warming ability.
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Affiliation(s)
- Yunfei Yu
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application (Zhengzhou University), Zhengzhou University, Zhengzhou, 450001, P. R. China.
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Alvarez J, Chua K, Sim N, Abedi M, Chen J, Tan A, Lai G, Takano A, Lim W, Tan E, Lim K, Zhai W, Tan D, Skanderup A. P59.08 THOR: Multi-Ethnic, Open Access Thoracic Cancer Genomics Resource. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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119
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Zhai W, Wang J, He N, Zhou J, Wang J, Xue Y, Yang Z, Chen Y, Zhang J, Haung J, Kong W, Huang Y, Xue W. DNA damage repair (DDR) pathway alteration in advanced renal cell carcinoma (RCC) is association with good progression-free survival with tyrosine kinase inhibitor (TKI) therapy. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.6_suppl.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
346 Background: Alterations in DNA damage repair (DDR) genes are associated with human tumorigenesis and may be as potential biomarkers for vascular endothelial growth factor (VEGF) tyrosine kinase inhibitor (TKI) therapy in renal cell carcinoma. However, biologic significance and relevance to TKI targeted therapy in metastatic RCC are unknown. Methods: Genomic data and treatment outcomes were retrospectively collected for patients with metastatic RCC. Tumor and germline DNA were subject to targeted next generation sequencing across 642 genes of interest, including 60 DDR genes. Patients were dichotomized according to underlying DDR gene alteration into (1) DDR gene alterations present (Mut DDR); (2) wildtype (WT) DDR gene alterations present (WT DDR). Association between DDR status and therapeutic benefit was investigated separately for and vascular endothelial growth factor (VEGF) tyrosine kinase inhibitor (TKI) therapy. Results: Mut DDR were detected in 17/40 patients (42.5%). The most frequently DDR altered genes were TP53. For patients with TKI treatment, Mut DDR status was associated with superior progression free survival (log-rank p = 0.048), but not with superior overall survival (log-rank p = 0.39); after adjusting for International Metastatic Renal Cell Carcinoma Database Consortium risks and extent of prior therapy, the HR for Mut DDR was 2.68 (95% CI: 0.96–7.46; p = 0.059). Conclusions: DDR alterations are recurrent genomic events in patients with advanced RCC and were mostly clonal in this cohort. Dysfunction events in these genes may affect outcome with TKI therapy in adanced RCC, and these hypothesis-generating results deserve further study.
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Affiliation(s)
- Wei Zhai
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Junyun Wang
- GloriousMed Clinical Laboratory (Shanghai) Co., Ltd., Shanghai, China
| | - Ning He
- GloriousMed Clinical Laboratory (Shanghai) Co., Ltd., Shanghai, China
| | - Jiale Zhou
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Jianfei Wang
- GloriousMed Clinical Laboratory (Shanghai) Co., Ltd., Shanghai, China
| | - Yizheng Xue
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Zhaolin Yang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Jiwei Haung
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Wen Kong
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Yiran Huang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Wei Xue
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
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Zhou J, Yang Z, Wu X, Zhang J, Zhai W, Chen Y. Identification of genes that correlate clear cell renal cell carcinoma and obesity and exhibit potential prognostic value. Transl Androl Urol 2021; 10:680-691. [PMID: 33718070 PMCID: PMC7947457 DOI: 10.21037/tau-20-891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Renal cell carcinoma (RCC) is a common urologic malignancy. Although the relationship between clear cell RCC (ccRCC) and obesity has been well-established by several large-scale retrospective studies, the molecular mechanisms and genetic characteristics behind this correlation remains unclear. In the current study, several bioinformatics tools were used to identify the key genes in ccRCC related to obesity. Methods Microarray data comparing ccRCC with normal renal tissues in patients with and without obesity were downloaded from the GEO database for screening of differentially expressed genes (DEGs). The DEGs were verified with expression level and survival analysis using several online bioinformatics tools. Results In the current study, the differential expression of five genes correlated with both ccRCC and obesity; IGHA1 and IGKC as oncogenes, and MAOA, MUC20 and TRPM3 as tumor suppressor genes. These genes were verified by comparing the relationship between the expression levels and survival outcomes from open-source data in The Cancer Genome Atlas (TCGA) dataset. Conclusions In conclusion, the five genes differentially expressed in ccRCC and obesity are related to disease progression and prognosis, and therefore could provide prognostic value for patients with ccRCC.
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Affiliation(s)
- Jiale Zhou
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhaolin Yang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xiaorong Wu
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wei Zhai
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Dong Y, Zhai W, Xu Y. Bioinformatic gene analysis for potential biomarkers and therapeutic targets of diabetic nephropathy associated renal cell carcinoma. Transl Androl Urol 2020; 9:2555-2571. [PMID: 33457229 PMCID: PMC7807343 DOI: 10.21037/tau-19-911] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background Numerous epidemiological studies have confirmed that diabetes can promote the development of malignant tumors. However, the relationship between renal cell carcinoma (RCC) and diabetic nephropathy (DN) is still controversial. This study aimed to investigate the genes that are co-expressed in DN and RCC in order to gain a better understanding of the relationship between these diseases, and to identify potential biomarkers and targets for the treatment of DN-related RCC. Methods We evaluated the differentially expressed genes (DEGs) that are co-expressed in DN and RCC using a wide range of target prediction and analysis methods. Twenty-four genes were identified by intersecting the differential genes of 3 DN datasets and 2 RCC datasets. We predicted the micro-ribonucleic acids (miRNAs) of these genes that may be controlled using the miRNA Data Integration Portal (mirDIP) database, and rated them according to each data forecast based on the Comparative Toxicogenomics Database (CTD) and the StarBase database. Results Four genes were associated with DN and RCC patients: the predicted miRNAs hsa-miR-200b-3p and hsa-miR-429 of fibronectin 1 (FN1); the predicted miRNA hsa-miR-29c-3p of collagen type 1 alpha 2 (COL1A2); the predicted miRNA hsa-miR-29c-3p of collagen type 3 alpha 1 (COL3A1); and the predicted miRNA hsa-miR-29a-3p and hsa-miR-200c-3p of glucose-6-phosphatase catalytic subunit (G6PC). These genes may serve as potential biomarkers or specific targets in the treatment of DN-related RCC. Conclusions A significant correlation was identified between DN and RCC. The FN1, COL1A2, COL3A1, and G6PC genes could be novel biomarkers of DN-related RCC.
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Affiliation(s)
- Yunze Dong
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China
| | - Wei Zhai
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Yunfei Xu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China
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123
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Huang W, Wu K, Wu R, Chen Z, Zhai W, Zheng J. Bioinformatic gene analysis for possible biomarkers and therapeutic targets of hypertension-related renal cell carcinoma. Transl Androl Urol 2020; 9:2675-2687. [PMID: 33457239 PMCID: PMC7807377 DOI: 10.21037/tau-20-817] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC) is one of the most prevalent malignant tumors of the urinary system. Hypertension can cause hypertensive nephropathy (HN). Meanwhile, Hypertension is considered to be related to kidney cancer. We analyzed co-expressed genes to find out the relationship between hypertension and RCC and show possible biomarkers and novel therapeutic targets of hypertension-related RCC. METHODS We identified the differentially expressed genes (DEGs) of HN and RCC through analyzing Gene Expression Omnibus (GEO) datasets GSE99339, GSE99325, GSE53757 and GSE15641 by means of bioinformatics analysis, respectively. Then we evaluated these genes with protein-protein interaction (PPI) networks, Gene Ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis and CTD database. Subsequently, we verified co-expressed DEGs with Gene Expression Profiling Interactive Analysis (GEPIA) database. Finally, corresponding predicted miRNAs of co-expressed DEGs were identified and verified via mirDIP database and Starbase, respectively. RESULTS We identified 9 co-expressed DEGs, including BCAT1, CORO1A, CRIP1, ESRRG, FN1, LYZ, PYCARD, SAP30, and PTRF. CRIP1 and ESRRG and their corresponding predicted miRNAs, especially hsa-miR-221-5p, hsa-miR-205-5p, hsa-miR-152-3p and hsa-miR-137 may be notably related to hypertension-related RCC. CONCLUSIONS CRIP1 and ESRRG genes have great potential to become novel biomarkers and therapeutic targets concerning hypertension-related RCC.
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Affiliation(s)
- Wenjie Huang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ke Wu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruoyu Wu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiguo Chen
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Zhai
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, China
| | - Junhua Zheng
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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124
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Zhang X, Zhai W, Li S, Suman SP, Chen J, Zhu H, Antonelo DS, Schilling MW. Early Postmortem Proteome Changes in Normal and Woody Broiler Breast Muscles. J Agric Food Chem 2020; 68:11000-11010. [PMID: 32786856 DOI: 10.1021/acs.jafc.0c03200] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Early postmortem changes in the whole muscle proteome from normal broiler (NB) and woody broiler (WB) breasts at 0 min, 15 min, 4 h, and 24 h after slaughter were analyzed using two-dimensional gel electrophoresis (2DE) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Elongation factor 2, EH domain-containing protein 2, phosphoglycerate mutase 1 (PGAM1), and T-complex protein 1 subunit gamma were differentially abundant in both NB and WB muscles during the early postmortem storage. Twenty additional proteins were differentially abundant among four postmortem time points in either NB or WB muscles. In the postmortem WB, changes in protein degradation were observed, including the degradation of desmin fragments, ovotransferrin chain A, and troponin I chain I. Additionally, a few glycolytic proteins in the WB might have undergone post-translational modification, including enolase, phosphoglucomutase-1, PGAM1, and pyruvate kinase. These changes in protein biomarkers highlight the impact of WB myopathy on postmortem proteome changes and increase our understanding of the relationship between WB conditions, postmortem biochemistry, and meat quality.
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Affiliation(s)
- Xue Zhang
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Wei Zhai
- Department of Poultry Science, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Shuting Li
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky 40546, United States
| | - Surendranath P Suman
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky 40546, United States
| | - Jing Chen
- Proteomics Core Facility, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Haining Zhu
- Proteomics Core Facility, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Daniel S Antonelo
- Department of Animal Nutrition and Production, College of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga, Sao Paulo 13635-900, Brazil
| | - Mark Wesley Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State, Mississippi 39762, United States
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125
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Huang Q, Sun Y, Zhai W, Ma X, Shen D, Du S, You B, Niu Y, Huang CP, Zhang X, Chang C. Androgen receptor modulates metastatic routes of VHL wild-type clear cell renal cell carcinoma in an oxygen-dependent manner. Oncogene 2020; 39:6677-6691. [PMID: 32943729 DOI: 10.1038/s41388-020-01455-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/16/2020] [Accepted: 09/02/2020] [Indexed: 12/18/2022]
Abstract
Recent studies indicated that the androgen receptor (AR) plays important roles in modulating metastasis of VHL-mutant clear cell renal cell carcinoma (ccRCC). However, the precise mechanisms of AR roles in VHL wild-type (VHL-wt) ccRCC, remain unclear. Here we found that AR interacted with VHL to modulate the metastasis of VHL-wt ccRCC via an oxygen-dependent manner. Mechanism dissection revealed that AR could transcriptionally suppress the miR-185-5p expression in the presence of functional VHL-wt protein under a normoxic condition, which might then result in increasing the expression of VEGF-A and VEGF-C via targeting the 3'UTR of mRNAs at a post-transcriptional level. In contrast, under a hypoxic condition, AR could increase miR-185-5p expression to suppress VEGF-C expression, yet this miR-185-5p effect on VEGF-A was reversed via AR's positive regulation on the HIF2α-increased VEGF-A expression that resulted in increasing VEGF-A in the VHL-wt RCC cells. These distinct AR functions under different oxygen conditions may involve the VHL-impacted ubiquitination and nuclear localization of AR. The differential regulation of VEGF-A vs VEGF-C by AR may then result in differential impacts on the ccRCC metastatic destinations of VHL-wt ccRCC cells under different oxygen conditions. These finer mechanisms may help in the development of a novel therapy to better suppress the ccRCC progression under different oxygenization conditions.
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Affiliation(s)
- Qingbo Huang
- Department of Urology, Chinese PLA General Hospital, 100853, Beijing, China.,George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Yin Sun
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Wei Zhai
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA.,Department of Urology, Renji Hospital, Jiao Tong University, Shanghai, 200127, China
| | - Xin Ma
- Department of Urology, Chinese PLA General Hospital, 100853, Beijing, China
| | - Donglai Shen
- Department of Urology, Chinese PLA General Hospital, 100853, Beijing, China
| | - Songliang Du
- Department of Urology, Chinese PLA General Hospital, 100853, Beijing, China
| | - Bosen You
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Yuanjie Niu
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Chi-Ping Huang
- Sex Hormone Research Center, Department of Urology, China Medical University/Hospital, Taichung, 404, Taiwan
| | - Xu Zhang
- Department of Urology, Chinese PLA General Hospital, 100853, Beijing, China.
| | - Chawnshang Chang
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, and The Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA. .,Sex Hormone Research Center, Department of Urology, China Medical University/Hospital, Taichung, 404, Taiwan.
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126
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Liu Y, Zhai W, Zeng K. Study of the Freeze Casting Process by Artificial Neural Networks. ACS Appl Mater Interfaces 2020; 12:40465-40474. [PMID: 32805804 DOI: 10.1021/acsami.0c09095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Freeze casting technology has experienced vast development since the early 2000s due to its versatility and simplicity for producing porous materials. A linear relationship between the final porosity and the initial solid material fraction in the suspension was reported by many researchers. However, the linear relationship cannot well describe the freeze casting for various samples. Here, we proposed an artificial neural network (ANN) to analyze the influence of critical parameters on freeze-cast porous materials. After well training the ANN model on experimental data, a porosity value can be predicted from four inputs, which describe the most influential process conditions. Based on the constructed model, two improvements are also successfully added on to infer more information. By involving big data from real experiments, this method effectively summarizes a general rule for diverse materials in one model, which gives a new insight into the freeze casting process. The good convergence and accuracy prove that our ANN model has the potential to be developed for solving more complicated issues of freeze casting. Finally, a user-friendly mini-program based on a well-trained ANN model is also provided to predict the porosity for customized freeze-casting experiments.
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Affiliation(s)
- Yue Liu
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
| | - Kaiyang Zeng
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
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127
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Liu H, Hu G, Wang Z, Liu Q, Zhang J, Chen Y, Huang Y, Xue W, Xu Y, Zhai W. circPTCH1 promotes invasion and metastasis in renal cell carcinoma via regulating miR-485-5p/MMP14 axis. Am J Cancer Res 2020; 10:10791-10807. [PMID: 32929380 PMCID: PMC7482820 DOI: 10.7150/thno.47239] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Circular RNAs (circRNAs) are a new class of non-coding RNAs (ncRNAs) that are derived from exons or introns by special selective shearing. circRNAs have been shown to play critical roles in various human cancers. However, their roles in renal cell carcinoma (RCC) and the underlying mechanisms remain largely unknown. Methods: A novel circRNA-circPTCH1, was identified from a microarray analysis of five paired RCC tissues. Then, we validated its expression and characterization through qRT-PCR, gel electrophoresis, RNase R digestion assays and Sanger sequencing. Functional experiments were performed to determine the effect of circPTCH1 on RCC progression both in vitro and in vivo. The interactions between circPTCH1 and miR-485-5p were clarified by RNA pull-down, luciferase reporter and RNA immunoprecipitation (RIP) assays. Results: We observed that circPTCH1 was up-regulated in RCC cell lines and tumor samples, and higher levels of circPTCH1 were significantly correlated with worse patient survival, advanced Fuhrman grade and greater risk of metastases. Elevated circPTCH1 expression led to increased migration and invasion of RCC cells both in vitro and in vivo whereas silencing circPTCH1 decreased migration and invasion and impeded the epithelial-mesenchymal transition (EMT) of RCC cells. Mechanistically, we elucidated that circPTCH1 could directly bind miR-485-5p and subsequently suppress expression of the target gene MMP14. Conclusion: circPTCH1 promotes RCC metastasis via the miR-485-5p/MMP14 axis and activation of the EMT process. Targeting circPTCH1 may represent a promising therapeutic strategy for metastatic RCC.
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128
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Gu C, Ye X, Cao Q, Guan W, Peng C, Wu Y, Zhai W. System dynamics modelling of urbanization under energy constraints in China. Sci Rep 2020; 10:9956. [PMID: 32561760 PMCID: PMC7305140 DOI: 10.1038/s41598-020-66125-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 05/08/2020] [Indexed: 11/22/2022] Open
Abstract
The rapid urbanization in China has been associated with a growing hunger for energy consumption and steadily-increasing CO2 emissions. In this paper, an integrated system dynamics model composed of four sub-models is developed to simulate the urbanization and energy consumption in China from 1998 to 2050. Three scenarios are provided: accelerated economic development, emission reduction constraint, and low-carbon oriented. The result reveals that rapid economic growth and sufficient energy supply will foster China's urbanization in all three scenarios. Under the low carbon transition scenario, China's urbanization rate is expected to reach 76.41% in 2050, both reducing carbon emissions and promoting eco-friendly development. All three scenarios witness a dramatic growth of residential energy consumption and a steady increase of industrial energy consumption. China still has a long way to achieve the low-carbon transition goal. China should promote renewable resources and energy, pursue a low-carbon lifestyle, and reduce energy intensity over the next few decades.
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Affiliation(s)
- Chaolin Gu
- School of Architecture, Tsinghua University, Beijing, 100084, China
| | - Xinyue Ye
- Department of Informatics, New Jersey Institute of Technology, Newark, NJ, 07102, USA.
| | - Qiwen Cao
- School of Architecture, Tsinghua University, Beijing, 100084, China
| | - Weihua Guan
- School of Geographical Sciences, Nanjing Normal University and Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China
| | - Chong Peng
- School of Architecture and Urban Planning, Huazhong University of Science and Technology and Hubei Urbanization Engineering Technology Research Center, Wuhan, 430074, China
| | - Yutong Wu
- School of Architecture and Urban Planning, Huazhong University of Science and Technology and Hubei Urbanization Engineering Technology Research Center, Wuhan, 430074, China
| | - Wei Zhai
- School of Landscape Architecture and Planning, University of Florida, Gainesville, FL, 32611, USA
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129
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Zeng BQ, Yu SQ, Chen Y, Zhai W, Liu B, Zhan SY, Sun F. [Safety of biological valves for aortic valve replacement: A systematic review and meta-analysis]. Beijing Da Xue Xue Bao Yi Xue Ban 2020; 52:547-556. [PMID: 32541991 DOI: 10.19723/j.issn.1671-167x.2020.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To provide a comprehensive and contemporary overview of the long-term safety outcomes after aortic valve replacements (AVR) with conventional biological heart valve (stented or stentless). METHODS English databases (Medline, Embase, Web of Science, CENTRAL, and ClinicalTrial.gov) and Chinese databases (CNKI, VIP, WanFang, and SinoMed) were searched systemically from January 1, 2000 to January 26, 2019. Eligible randomized controlled trials, non-randomized clinical trials, cohort studies (retrospective or prospective), and unselected case series were included. Strict screening of the obtained literature was conducted to extract relevant data by two reviewers. Other inclusion criteria were studied reporting on outcomes of AVR with biological valves (stented or stentless), with or without coronary artery bypass grafting (CABG) or valve repair procedure, with mean follow-up length equal to or longer than 5 years. We excluded studies that reported only a specific patient group (e.g., patients with renal failure, or pregnancy), without the report of biological valve type, or with study population size less than 100. The meta-analysis was performed using Stata 14.0 software. RESULTS In this study, 53 papers (in total 57 study groups) involving 47 803 patients were included. (1) The all-cause mortality was 6.33/100 patient-years (95%CI: 5.85-6.84). Subgroup analysis showed that the mortality rates of porcine and bovine valve prostheses were 5.69/100 patient-years (95%CI: 5.05-6.41) and 7.29/100 patient-years (95%CI: 6.53-8.13), respectively. The all-cause mortality rates for stented and stentless valve were 6.69/100 patient-years (95%CI: 6.12-7.30) and 5.21/100 patient-years (95%CI: 4.43-6.14), respectively. (2) The incidence rate of thromboembolism was 1.16/100 patient-years (95%CI: 0.96-1.40), the incidence rate of permanent pacemaker (PPM) implantation was 1.08/100 patient-years (95%CI: 0.75-1.54), the incidence rate of stroke was 0.74/100 patient-years (95%CI: 0.51-1.06), the incidence rate of structural valve dysfunction (SVD) was 0.73/100 patient-years (95%CI: 0.59-0.91), the incidence rate of major bleeding was 0.52/100 patient-years (95%CI: 0.41-0.65), the incidence rate of endocarditis was 0.38/100 patient-years (95%CI: 0.33-0.44), and the incidence rate of non-structural valve dysfunction (NSVD) was 0.20/100 patient-years (95%CI: 0.13-0.31). The total reoperation rate for biological aortic valve was 0.77/100 patient-years (95%CI: 0.65-0.91), and the SVD related reoperation rate was 0.46/100 patient-years (95%CI: 0.36-0.58). CONCLUSION The all-cause mortality for conventional biological AVR was 6.33/100 patient-years. Thromboembolism, PPM implantation, reoperation, stroke, and SVD were major long term complications.
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Affiliation(s)
- B Q Zeng
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China
| | - S Q Yu
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China
| | - Y Chen
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China
| | - W Zhai
- Beijing Center for ADR Monitoring, Beijing 100024, China
| | - B Liu
- Beijing Center for ADR Monitoring, Beijing 100024, China
| | - S Y Zhan
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China
| | - F Sun
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China
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130
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Zhang ZY, Zhang SL, Chen HL, Mao YQ, Li ZM, Kong CY, Han B, Zhang J, Chen YH, Xue W, Zhai W, Wang LS. The up-regulation of NDRG1 by HIF counteracts the cancer-promoting effect of HIF in VHL-deficient clear cell renal cell carcinoma. Cell Prolif 2020; 53:e12853. [PMID: 32537867 PMCID: PMC7377940 DOI: 10.1111/cpr.12853] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/25/2020] [Accepted: 05/16/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Hypoxia-inducible factors (HIFs) are thought to play important roles in the carcinogenesis and progression of VHL-deficient clear cell renal cell carcinoma (ccRCC). METHODS The roles of HIF-1/2α in VHL-deficient clear cell renal cell carcinoma were evaluated by bioinformatics analysis, immunohistochemistry staining and Kaplan-Meier survival analysis. The downstream genes that counteract the cancer-promoting effect of HIF were analysed by unbiased proteomics and verified by in vitro and in vivo assays. RESULTS There was no correlation between the high protein level of HIF-1/2α and the poor prognosis of ccRCC patients in our large set of clinical data. Furthermore, NDRG1 was found to be up-regulated by both HIF-1α and -2α at the cellular level and in ccRCC tissues. Intriguingly, the high NDRG1 expression was correlated with lower Furman grade, TNM stage and longer survival for ccRCC patients compared with the low NDRG1 expression. In addition, NDRG1 suppressed the expression of series oncogenes as well as the proliferation, metastasis and invasion of VHL-deficient ccRCC cells in vitro and vivo. CONCLUSIONS Our study demonstrated that HIF downstream gene of NDRG1 may counteract the cancer-promoting effect of HIF. These results provided evidence that NDRG1 may be a potential prognostic biomarker as well as a therapeutic target in ccRCC.
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Affiliation(s)
- Zheng-Yan Zhang
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Shi-Long Zhang
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Hui-Ling Chen
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Yu-Qin Mao
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Zhan-Ming Li
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Chao-Yue Kong
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Bing Han
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong-Hui Chen
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Xue
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Zhai
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li-Shun Wang
- Key Laboratory of Whole-Period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
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131
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Zhang B, Zhang X, Schilling MW, Tabler GT, Peebles ED, Zhai W. Effects of broiler genetic strain and dietary amino acid reduction on (part I) growth performance and internal organ development. Poult Sci 2020; 99:3266-3279. [PMID: 32475462 PMCID: PMC7597689 DOI: 10.1016/j.psj.2020.03.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/31/2020] [Accepted: 03/19/2020] [Indexed: 11/20/2022] Open
Abstract
Genetic selection in broilers has resulted in improved growth performance, meat yield, and feed conversion efficiency. However, consumers have become increasingly concerned about modern broiler welfare that is related to their rapid growth rate, which may be alleviated by nutrient dilution. This study was conducted to investigate the effects of dietary amino acid (AA) reduction on the growth performance and internal organ development of different genetic strains of broilers. A randomized completed block design with a factorial arrangement of 10 treatments (5 strains × 2 AA levels) was used. The 5 different strains of broilers were fed either a control diet, with digestible AA (lysine, total sulfur AA, and threonine) at the highest recommended levels for the 5 strains, or an AA-reduced diet, with the digestible AA being 20% lower than the control diet. Feed conversion ratio was increased by AA reduction in all 5 strains during day 0-14, 14-28, and 28-41 but was not affected from day 41-55. Body weight and feed intake responses to AA reduction varied in the different strains and ages of birds. Liver weight relative to BW on day 40, and weights of the duodenum and jejunum relative to BW on day 60 were increased by decreasing the dietary AA concentration. These results indicate that the birds had adjusted their organ growth and metabolism in response to increases in digestion, absorption, and utilization efficiency to accommodate a decrease in dietary AA content. Surprisingly, the cost of feed required to produce the same BW was decreased in 4 of 5 strains on both day 41 and 55, which was largely because of the lower price of the diets containing reduced AA levels and the later compensatory growth experienced by the birds fed AA-reduced diets. In the future, when dietary AA levels need to be adjusted to control growth rate and improve welfare status, the genetic strain, age of the birds, and targeted goals need to be taken into consideration.
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Affiliation(s)
- Bo Zhang
- Department of Poultry Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Xue Zhang
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Mark W Schilling
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - George T Tabler
- Department of Poultry Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - E David Peebles
- Department of Poultry Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Wei Zhai
- Department of Poultry Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA.
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Zhang X, Antonelo D, Hendrix J, To V, Campbell Y, Von Staden M, Li S, Suman SP, Zhai W, Chen J, Zhu H, Schilling W. Proteomic Characterization of Normal and Woody Breast Meat from Broilers of Five Genetic Strains. Meat and Muscle Biology 2020. [DOI: 10.22175/mmb.8759] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Woody breast (WB) is an emergent broiler myopathy that is macroscopically characterized by hardened areas of the Pectoralis major muscle. Five genetic strains (strains 1–5) of mixed-sex broilers were fed either a control or an amino acid (AA)-reduced diet (20% reduction of digestible lysine, total sulfur AAs, and threonine) for 8 wk. Differences between whole-muscle proteome profiles of normal breast (NB; n = 6 gels) and WB tissue (n = 6 gels) were characterized for (1) broiler strains 1–5 that were fed with a control diet and collected at 0 min; (2) strain 5 (control diet) that were collected at 15 min, 4 h, and 24 h; (3) strain 5 (0 min) that were fed with a control and an AA-reduced diet. Birds that yielded WB were heavier and had a greater pH at death (pH0min) than normal birds. Results indicated that 21 proteins were more abundant (P < 0.05) and 3 proteins were less abundant (P < 0.05) in WB compared with NB. The differentially abundant proteins in each comparison were consistently upregulated or downregulated in WB tissue although the different protein profiles were noticed for each comparison. Strains 2 and 5 had more protein profile differences between WB and NB meat than strains 1, 3, and 4, which potentially indicates a stronger genetic component for strains 2 and 5 with respect to WB formation. The proteins that were more abundant in WB compared to NB are involved in carbohydrate metabolism, oxidative stress, cytoskeleton structure, and transport and signaling. Ingenuity Pathway Analysis indicated that regulated pathways in WB were mainly related to carbohydrate metabolism, cellular repair, cellular organization and maintenance, and cell death and survival. The results support the potential causes of WB myopathy, including the presence of hypoxia, oxidative stress, increased apoptosis, misfolded proteins, and inflammation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Wes Schilling
- Mississippi State University Department of Food Science, Nutrition and Health Promotion
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133
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Guo J, Zhai W, Sun Q, Ai Q, Li J, Cheng J, Dai L, Ci L. Facilely tunable core-shell Si@SiOx nanostructures prepared in aqueous solution for lithium ion battery anode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136068] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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134
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Zhai W, Gao L, Qu L, Li Y, Zeng Y, Li Q, Xu H, Yin ZQ. Combined Transplantation of Olfactory Ensheathing Cells With Rat Neural Stem Cells Enhanced the Therapeutic Effect in the Retina of RCS Rats. Front Cell Neurosci 2020; 14:52. [PMID: 32265657 PMCID: PMC7105604 DOI: 10.3389/fncel.2020.00052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 11/14/2019] [Accepted: 02/21/2020] [Indexed: 12/26/2022] Open
Abstract
Retinal degenerative diseases (RDDs) are the leading causes of blindness and currently lack effective treatment. Cytotherapy has become a promising strategy for RDDs. The transplantation of olfactory ensheathing cells (OECs) or neural stem cells (NSCs) has recently been applied for the experimental treatment of RDDs. However, the long-term outcomes of single-cell transplantation are poor. The combined transplantation of multiple types of cells might achieve better effects. In the present study, OECs [containing olfactory nerve fibroblasts (ONFs)] and NSCs were cotransplanted into the subretinal space of Royal College of Surgeons (RCS) rats. Using electroretinogram (ERG), immunofluorescence, Western blot, and in vitro Transwell system, the differences in the electrophysiological and morphological changes of single and combined transplantation as well as the underlying mechanisms were explored at 4, 8, and 12 weeks postoperation. In addition, using the Transwell system, the influence of OECs on the stemness of NSCs was discovered. Results showed that, compared to the single transplantation of OECs or NSCs, the combined transplantation of OECs and NSCs produced greater improvements in b-wave amplitudes in ERGs and the thickness of the outer nuclear layer at all three time points. More endogenous stem cells were found within the retina after combined transplantation. Glial fibrillary acidic protein (GFAP) expression decreased significantly when NSCs were cotransplanted with OECs. Both the vertical and horizontal migration of grafted cells were enhanced in the combined transplantation group. Meanwhile, the stemness of NSCs was also better maintained after coculture with OECs. Taken together, the results suggested that the combined transplantation of NSCs and OECs enhanced the improvement in retinal protection in RCS rats, providing a new strategy to treat RDDs in the future.
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Affiliation(s)
- Wei Zhai
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Lixiong Gao
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China.,Department of Ophthalmology, The 6th Medical Center of PLA General Hospital, Beijing, China
| | - Linghui Qu
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Yijian Li
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Yuxiao Zeng
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Qiyou Li
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Haiwei Xu
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Zheng Qin Yin
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
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135
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Byron M, Zhang X, Von Staden M, Jarvis T, Crist C, Zhai W, Schilling W. Impact of Refrigerated Storage Time on Woody Broiler Breast Severity and Instrumental Quality. Meat and Muscle Biology 2020. [DOI: 10.22175/mmb.9477] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Chicken breast samples (N = 90; n = 30 normal [NOR]; n = 30 moderate [MOD] woody breast [WB]; n = 30 severe [SEV] WB) were collected from a commercial processing plant on 5 separate occasions and were evaluated for severity from d 0 through d 5. A 3 × 6 two-way factorial structure (meat quality treatment × storage time) with 5 replications within a randomized complete block design (replications as blocks) with subsamples was utilized to evaluate the effects of treatment (NOR, MOD, SEV) and storage time (d 0 through 5) on pH, color, cook loss, shear force, and proximate analysis (d 0 and 5). After 5 d of storage at 2°C to 4°C, 84% of SEV WB fillets were evaluated as MOD WB, which was greater (P < 0.05) than all other storage times. In comparison, 40% to 52% of the MOD WB fillets were rated as slight WB or NOR after 3 to 5 d of storage. Cook loss was less (P < 0.05) for NOR compared to MOD and SEV breast meat at all storage times. Shear force was greater (P < 0.05) for NOR breast meat than MOD and SEV WB meat on d 0. After 2, 3, 4, and 5 d of storage, the upper position (cranial part) of SEV WB had greater (P < 0.05) shear force than NOR fillets. Therefore, the lessening of severity that occurred in WB meat over refrigerated storage was apparent through palpation but did not result in improved texture in the cranial portion of the breast, based on shear force and water-holding capacity results. These results are important because they indicate that, even though muscle softening occurred over refrigerated storage time, meat quality did not improve.
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Affiliation(s)
- Michael Byron
- Mississippi State University Department of Food Science, Nutrition and Health Promotion
| | | | | | - Tessa Jarvis
- Mississippi State University Department of Food Science, Nutrition and Health Promotion
| | | | | | - Wes Schilling
- Mississippi State University Department of Food Science, Nutrition and Health Promotion
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136
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Byron MD, Von Staden ME, Zhang X, Crist CA, Zhai W, Schilling MW. Impact of Refrigerated Storage Time on the Instrumental Quality Traits and Dissipation of Woody Broiler Breast Meat. Meat and Muscle Biology 2019. [DOI: 10.22175/mmb.10777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
ObjectivesSince 2013, woody breast (WB) has been a prevalent meat quality defect in the broiler industry, affecting 30–40% of chicken breast meat from broilers with live weights greater than 4.2 kg. Woody breast results in a loss over $200 million annually due to decreased yields and product value. WB samples are lighter, more yellow in appearance, and are characterized by a greater pH and cooking loss than normal breast meat. The objective of this research was to evaluate and compare the instrumental quality traits of normal and WB fillets over storage time to determine if the WB condition dissipates over storage time. Dissipation was defined by the change of severely woody to moderately woody breasts or the change of moderately woody to slightly woody or normal breasts.Materials and MethodsNinety chicken breast samples, 30 from each of the following breast meat categories (normal, moderately woody, and severely woody) were collected from a commercial processing plant on 5 separate occasions for evaluation of dissipation, purge loss and shear force from Day 1 (d1) through Day 5 (d5). A 3 × 6 factorial structure (WB severity × storage time) with 5 replications within a randomized complete block design (sampling occasions as blocks) with subsamples was utilized to evaluate the effects of WB severity (normal, moderate, severe) and storage time (d 0, d 1 to d 5) on dissipation, purge loss and shear force (d 0 and d 5) (SAS version 9.4, Cary, NC).ResultsResults indicated that dissipation was observed on moderate and severe woody breast over storage time. After 5 d of storage at 2–4°C, 84% of SEV WB fillets dissipated to MOD WB, which was greater (P < 0.05) than all other storage times. In comparison, only 40–52% of the MOD WB fillets dissipated to slight WB or NOR breasts after 3–5 d of storage. Purge loss increased throughout storage time for NOR, MOD, and SEV chicken breast meat. In addition, purge loss was less (P < 0.05) for NOR than SEV WB after 1, 2, and 4 d of storage. However, after 5 d of storage, no difference (P > 0.05) existed in purge loss among NOR, MOD, and SEV WB meat. Shear force was greater (P < 0.05) for NOR than MOD and SEV WB meat on Day 0in the upper, middle, and lower portions of the breast. By Day 1, there were no differences (P > 0.05) in shear force among the 3 breast meat severities. After 2, 3, 4, and 5 d of storage, the upper position (cranial part) of SEV WB fillets had greater (P < 0.05) shear force than NOR fillets.ConclusionIn conclusion, the dissipation that occurred in WB meat over refrigerated storage was mainly visual and did not improve overall meat quality.
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Affiliation(s)
- M. D. Byron
- Mississippi State University Food Science, Nutrition and Health Promotion
| | - M. E. Von Staden
- Mississippi State University Food Science, Nutrition and Health Promotion
| | - X. Zhang
- Mississippi State University Food Science, Nutrition and Health Promotion
| | - C. A. Crist
- Mississippi State University Food Science, Nutrition and Health Promotion
| | - W. Zhai
- Mississippi State University Department of Poultry Science
| | - M. W. Schilling
- Mississippi State University Food Science, Nutrition and Health Promotion
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137
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Zhang X, Zhang L, Hendrix JD, Zhai W, Schilling MW. Characterization of Caecal Microbiota in Broilers that Differ in Genetic Strain, Nutrition, and Development of Woody Breast. Meat and Muscle Biology 2019. [DOI: 10.22175/mmb.10751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
ObjectivesWoody breast (WB) meat from broilers has undesirable textural characteristics, including, crunchiness and stickiness. Genetic, nutritional, and environmental factors are associated with the mechanism of WB development. A diverse microbiota plays an important role on the growth performance and health of the host, and greater than 900 species of bacteria have been isolated in the gastrointestinal tract of chicken. However, minimal information is known about the microbiota in the guts of broilers that yield WB meat. Therefore, the objective of this research was to characterize and compare the bacterial diversity of caecal microbiota in broilers with normal and woody breast fillets.Materials and MethodsThe Institutional Animal Care and Use Committee of Mississippi State University (IACUC-16–542) reviewed and approved all protocols. One-day-old mixed sex broilers from two strains (A2 and B2) were raised in 32 pens in a chicken house. Birds of each strain were randomly assigned to 16 pens (15 birds per pen) and 8 pens were fed a control diet and 8 pens were fed an amino acid reduced diet (digestible lysine, total sulfur amino acids, and threonine reduced by 20% as compared to the control diet). After 8 wk of growth, 4 male broilers with normal breast (1 chick per pen) and 4 male broilers with WB (1 chick per pen) determined by palpation were selected for each treatment (breed × diet). The cecum samples were collected after birds were euthanized and bled. DNA was extracted and amplified using universal primers that target the V3∼4 regions of bacterial 16S rRNA for sequencing in Illumina MiSeq. Raw sequences were processed, and the quality was filtered using the default parameters of Quantitative Insights into Microbial Ecology (QIIME 2). Differences between species were assessed using the unpaired two-tailed Student t test assuming unequal variance at α = 0.05.ResultsData suggested that the most abundant phyla in all samples were Firmicutes, followed by Bacteroidetes and Proteobacteria. Accounting for both abundance and evenness of the species present in each sample (α diversity), results indicated that there was no difference (P > 0.05, pairwise Kruskal–Wallis test) in the diversity of gut microbiota between two phenotypes (normal vs. woody), two strains (A2 vs. B2) or two diets (control vs. reduced). However, principal coordinate analysis plots (β diversity) revealed that the samples were clustered based on the phenotype rather than by the strain or diet. These results revealed that the microbiota of each bird with normal breast was more similar to each other than the microbiota of birds with WB. Among all species (300–400) identified, no difference (P < 0.05) existed in bacterial abundance between the two genetic strains. However, 16 and 13 species were differentially abundant (P < 0.05) between normal and woody breast and between control and reduced diet treatments, respectively. In the ceca of WB birds Selenomonas bovis (12.6%) and Bacteroides plebeius (12.3%) were the top two predominant bacteria; however, the relative abundances of these two bacteria were only 5.1% and 1.2% in normal birds, respectively.ConclusionDifferences in the microbiome may be associated with the development of WB. Further studies are needed to investigate the potential mechanism and how to reduce broiler WB incidence by regulating their gut microbiota.
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Affiliation(s)
- X. Zhang
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - L. Zhang
- Mississippi State University Department of Poultry Science
| | - J. D. Hendrix
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - W. Zhai
- Mississippi State University Department of Poultry Science
| | - M. W. Schilling
- Mississippi State University Food Science, Nutrition, and Health Promotion
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138
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Zhang X, Hendrix JD, To KV, Campbell YL, Von Staden ME, Suman SP, Li S, Zhai W, Schilling MW. Quantitative Proteomic Characterization Associated with Woody Breast Meat from Broilers Fed a Standard or an Amino Acid-Reduced Diet. Meat and Muscle Biology 2019. [DOI: 10.22175/mmb.10734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
ObjectivesWoody or wooden breast (WB) is an emergent myopathy of broilers and is macroscopically characterized by hardened areas of the Pectoralis major muscle. Woody broiler breast fillets can result in harder texture, higher pH, lower amounts of proteins, lower water-holding capacity, and increased cook loss when compared to normal breasts. The impaired meat quality of WB has been reported to be closely associated with improved nutrition and fast-growth rates. The present research compared the proteome of normal and woody breast muscle from broilers that were fed with either a control diet or an amino acid (AA)-reduced diet.Materials and MethodsMixed-sex broilers were assigned to 16 pens (15 chicks per pen) and fed with control or reduced AA diets (20% reduction of digestible lysine, total sulfur amino acids, and threonine). At 8 wk of age, live broilers were evaluated manually for WB myopathy. Within each diet group, 4 male broilers with normal breast and 4 male broilers with WB were selected (one bird in each pen) and euthanized using CO2 gas. The breast muscle from the cranial portion was immediately sampled after bleeding and snap-frozen in liquid nitrogen. All experimental procedures were approved by the Institutional Animal Care and Use Committee of Mississippi State University (IACUC-16-542). Whole muscle proteins of normal and woody breast were extracted from frozen samples of three birds within each treatment. Two-dimensional gel electrophoresis (2-DE; 6 gels per treatment) coupled with image analysis and mass spectrometry were used to investigate differences in the expression levels of proteins (more than 2.0-fold intensity differences) from chicken breast muscle. Differences were evaluated using Student’s t test at a confidence interval of 95%.ResultsWhen the broilers were fed with the control diet, 10 proteins were expressed differentially between normal and woody breasts. Apolipoprotein A-I, desmin, annexin A2, annexin A5, and ubiquitin carboxyl-terminal hydrolase were overexpressed (P < 0.05) in WB. Peptidyl-prolyl cis-trans isomerase, four and a half LIM domains protein 1 isoform X3, and an uncharacterized protein were only present in WB muscle, but not in normal chicken breast. Two proteins, keratin, type II cytoskeletal 8 and α-1,4 glucan phosphorylase, were overexpressed (P < 0.05) in normal chicken breast. These differentially expressed proteins were involved in glycolytic metabolism, cell structure, and cellular defense.Interestingly, only one protein (heat shock protein β-1) was expressed differentially between normal and woody breasts when broilers were fed with the AA-reduced diet. This protein was overexpressed (P < 0.05) in WB samples and found to play a role in stress resistance and actin organization.ConclusionThe protein profiles of normal and woody chicken breast samples were different, which might help explain the changes in meat quality. Essential amino acid intake resulted in minimizing difference in protein profiles between normal and woody chicken breasts.
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Affiliation(s)
- X. Zhang
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - J. D. Hendrix
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - K. V. To
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - Y. L. Campbell
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - M. E. Von Staden
- Mississippi State University Food Science, Nutrition, and Health Promotion
| | - S. P. Suman
- University of Kentucky Department of Animal and Food Sciences
| | - S. Li
- University of Kentucky Department of Animal and Food Sciences
| | - W. Zhai
- Mississippi State University Department of Poultry Science
| | - M. W. Schilling
- Mississippi State University Food Science, Nutrition, and Health Promotion
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139
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Abstract
Two-dimensional (2D) semiconductors have demonstrated great potential in modern nanotechnologies across a variety of research fields, including (opto-)electronics, spintronics, and electro-/photocatalysis. Interestingly, the vast majority of 2D semiconductors, such as the widely explored transition-metal dichalcogenides, are n-type or ambipolar. The search for p-type 2D semiconductors in the past decade has succeeded in identifying only a few promising candidate materials. In this Perspective, we discuss various strategies to obtain p-type conduction in normally n-type or ambipolar 2D semiconductors and, more importantly, the direct synthesis of p-type 2D semiconductors such as black phosphorus, 2D tellurium, and, most recently, α-MnS.
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Affiliation(s)
- Qiyuan He
- Center for Programmable Materials, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Yuan Liu
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics , Hunan University , Changsha 410082 , China
| | - Chaoliang Tan
- Center for Programmable Materials, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Wei Zhai
- Department of Chemistry , City University of Hong Kong , Kowloon , Hong Kong, China
| | - Gwang-Hyeon Nam
- Center for Programmable Materials, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Hua Zhang
- Department of Chemistry , City University of Hong Kong , Kowloon , Hong Kong, China
- Center for Programmable Materials, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
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140
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Wang X, Farnell YZ, Kiess AS, Peebles ED, Wamsley KGS, Zhai W. Effects of Bacillus subtilis and coccidial vaccination on cecal microbial diversity and composition of Eimeria-challenged male broilers. Poult Sci 2019; 98:3839-3849. [PMID: 30843054 DOI: 10.3382/ps/pez096] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 11/03/2017] [Accepted: 02/08/2019] [Indexed: 11/20/2022] Open
Abstract
In a companion study, the effects of dietary antibiotic alternative and coccidial vaccination on the growth performance of male broilers have been reported. In this paper, the effects of dietary probiotics and coccidial vaccination on diversity and composition of cecal microbiota were investigated using a 3 (diets) × 2 (vaccinated or non-vaccinated) factorial setting of treatments. Three diets, including a corn and soybean-meal control diet, an antibiotic diet (a control diet supplemented with bacitracin and salinomycin), and a probiotic diet (a control diet supplemented with Bacillus subtilis) were provided to broiler chicken from day 0 to 42. To simulate an Eimeria challenge in the field, all chicks were gavaged with a 20× dose of commercial coccidial vaccine containing live Eimeria oocysts on day 14. Cecal contents were collected on day 42. High-throughput sequencing of the 16S rRNA gene was used to determine microbial diversity and composition. Coccidial vaccination to broilers reduced bacterial diversity (Shannon index) of the cecal microbiota. There was a significant interaction between the dietary additive and coccidial vaccination on the observed bacterial species number. Diets supplemented with B. subtilis increased bacterial species of non-vaccinated broilers but decreased bacterial species of vaccinated broilers. In contrast, diets supplemented with antibiotics reduced bacterial species of broilers from both groups. Interactions between dietary additive and coccidial vaccination were also observed on microbial composition. Vaccinated broilers fed the B. subtilis diet exhibited the lowest Firmicutes percentage and highest Bacteroidetes percentage within the microbial community. In addition, vaccinated broilers fed the B. subtilis diet exhibited the highest Rikenella microfusus percentage. From this study, the coccidial vaccination on the day of hatch reduced the microbial diversity of broilers at a later age. The inclusion of B. subtilis-probiotics in the feed of vaccinated broilers may reduce microbial diversity in cecal content by increasing the proportion of a predominant bacterial species, R. microfusus, in the microbial community.
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Affiliation(s)
- Xi Wang
- Department of Poultry Science, Mississippi State University, MI 39762
| | - Yuhua Z Farnell
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, MS 39762
| | - Aaron S Kiess
- Department of Poultry Science, Mississippi State University, MI 39762
| | - E David Peebles
- Department of Poultry Science, Mississippi State University, MI 39762
| | | | - Wei Zhai
- Department of Poultry Science, Mississippi State University, MI 39762
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141
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Cai N, Hu L, Xie Y, Gao JH, Zhai W, Wang L, Jin QJ, Qin CY, Qiang R. MiR-17-5p promotes cervical cancer cell proliferation and metastasis by targeting transforming growth factor-β receptor 2. Eur Rev Med Pharmacol Sci 2019; 22:1899-1906. [PMID: 29687841 DOI: 10.26355/eurrev_201804_14712] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE MicroRNAs (miRNAs) play critical roles in post-translational gene expression. The aim of the current study was to investigate the effects of miR-17-5p in cervical cancer. PATIENTS AND METHODS Fifteen clinical cervical cancer tissue samples, as well as their paired adjacent noncancerous tissues, were collected. The microarray was performed to identify differential miRNAs in cervical cancer. Luciferase reporter assay was conducted to identify the target gene of selected miRNA. SiHa was transfected with mimics, inhibitors as well as negative controls of miR-17-5p and Targeting Transforming Growth Factor-β Receptor 2 (TGFBR2) open reading frame or siRNA. Cell counting kit-8 (CCK-8) assay and transwell experiment were performed to detect the proliferation rate and metastasis, respectively. Western blotting and quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) analysis were used to analyze TGFBR2 expression. Balb/c nude mice were utilized to verify the effect of miR-17-5p in vivo. RESULTS Microarray analysis identified miR-17-5p as our interesting miRNA, and luciferase reporter assay identified TGFBR2 as its target gene. MiR-17-5p overexpression significantly enhanced cervical cancer cell proliferation and metastasis. In-vivo study also verified that miR-17-5p overexpression stimulated cervical cancer growth. CONCLUSIONS MiR-17-5p enhances cervical cancer proliferation and metastasis via targeting TGFBR2. It is proposed that targeting miR-17-5p may be a promising therapeutic approach for cervical cancer.
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Affiliation(s)
- N Cai
- The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China.
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Chen F, Dong C, Chen C, Yin WD, Zhai W, Ma XY, Wei B. Nitrogen-aeration tuned ultrasonic synthesis of SiO 2@PNIPAm nanoparticles and preparation of temperature responsive Pickering emulsion. Ultrason Sonochem 2019; 58:104705. [PMID: 31554146 DOI: 10.1016/j.ultsonch.2019.104705] [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] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 07/01/2019] [Accepted: 07/22/2019] [Indexed: 05/22/2023]
Abstract
Ultrasonic synthesis has shown great potential applications in preparing varieties of nanostructured materials. However, fabrication of nanomaterials with tunable structures and desirable properties is still challenging because of the instability and nonuniform distribution of cavitation effect in liquid phase. In this study, a novel aeration tuned ultrasonic synthesis approach is proposed for optimizing the cavitation effect in both time and space scales and fabricating SiO2@PNIPAm NPs. By alternation of ultrasonication and N2 aeration, more and more gas bubbles are formed in the reaction liquid, and the collapse of those bubbles is further enhanced by the reactants of solid SiO2 and intermediate functionalized SiO2 NPs. As a result, SiO2@PNIPAm NPs with various grafting ratios are successfully synthesized simply by changing the number of ultrasonic synthesis cycle. The SiO2@PNIPAm NPs are subsequently used as stabilizer to form Pickering emulsions with different temperature response. This work provides a potential facile sonochemical synthesis method with high efficiency in obtaining inorganic/organic NPs of well determined structures.
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Affiliation(s)
- F Chen
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - C Dong
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - C Chen
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W D Yin
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W Zhai
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - X Y Ma
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - B Wei
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
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Oh JAS, He L, Plewa A, Morita M, Zhao Y, Sakamoto T, Song X, Zhai W, Zeng K, Lu L. Composite NASICON (Na 3Zr 2Si 2PO 12) Solid-State Electrolyte with Enhanced Na + Ionic Conductivity: Effect of Liquid Phase Sintering. ACS Appl Mater Interfaces 2019; 11:40125-40133. [PMID: 31592636 DOI: 10.1021/acsami.9b14986] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
NASICON-type of solid-state electrolyte, Na3Zr2Si2PO12 (NZSP), is one of the potential solid-state electrolytes for all-solid-state Na battery and Na-air battery. However, in solid-state synthesis, high sintering temperature above 1200 °C and long duration are required, which led to loss of volatile materials and formation of impurities at the grain boundaries. This hampers the total ionic conductivity of NZSP to be in the range of 10-4 S cm-1. Herein, we have reduced both the sintering temperature and time of the NZSP electrolyte by sintering the NZSP powders with different amounts of Na2SiO3 additive, which provides the liquid phase for the sintering process. The addition of 5 wt % Na2SiO3 has shown the highest total ionic conductivity of 1.45 mS cm-1 at room temperature. A systematic study of the effect of Na2SiO3 on the microstructure and electrical properties of the NZSP electrolyte is conducted by the structural study with the help of morphological and chemical observations using X-ray diffraction (XRD), scanning electron microscopy, and using focused ion-beam-time of flight-secondary ion mass spectroscopy. The XRD results revealed that cations from Na2SiO3 diffused into the bulk change the stoichiometry of NZSP, leading to an enlarged bottleneck area and hence lowering activation energy in the bulk, which contributes to the increment of the bulk ion conductivity, as indicated by the electrochemical impedance spectroscopy result. In addition, higher density and better microstructure contribute to improved grain boundary conductivity. More importantly, this study has achieved a highly ionic conductive NZSP only by facile addition of Na2SiO3 into the NZSP powder prior to the sintering stage.
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Affiliation(s)
- Jin An Sam Oh
- Department of Mechanical Engineering , National University of Singapore , Singapore 117575 , Singapore
- Graduate School for Integrative Sciences and Engineering , National University of Singapore , Singapore 138632 , Singapore
- Singapore Institute of Manufacturing Technology , A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way , Innovis 138634 , Singapore
| | - Linchun He
- Department of Mechanical Engineering , National University of Singapore , Singapore 117575 , Singapore
| | - Anna Plewa
- Department of Mechanical Engineering , National University of Singapore , Singapore 117575 , Singapore
- Faculty of Energy and Fuels , AGH University of Science and Technology , al. Mickiewicza 30 , Krakow 30-059 , Poland
| | | | | | | | - Xu Song
- Department of Mechanical and Automation Engineering , Chinese University of Hong Kong , William M. W. Mong Engineering Building, Chung Chi Road , Ma Liu Shui , HKSAR
| | - Wei Zhai
- Singapore Institute of Manufacturing Technology , A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way , Innovis 138634 , Singapore
| | - Kaiyang Zeng
- Department of Mechanical Engineering , National University of Singapore , Singapore 117575 , Singapore
| | - Li Lu
- Department of Mechanical Engineering , National University of Singapore , Singapore 117575 , Singapore
- National University of Singapore (Suzhou) Research Institute , Suzhou 215123 , P. R. China
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144
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Li C, Zhai W, Wan L, Li J, Huang A, Xing S, Fan K. MicroRNA-125a attenuates the chemoresistance against ubenimex in non-small cell lung carcinoma via targeting the aminopeptidase N signaling pathway. J Cell Biochem 2019; 121:1716-1727. [PMID: 31595566 DOI: 10.1002/jcb.29407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 12/21/2018] [Accepted: 03/15/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND Since several long noncoding RNAs (lncRNAs) have been implicated in the development of chemoresistance in non-small cell lung carcinoma (NSCLC), the aim of this study was to investigate whether antisense noncoding RNA in the INK4 locus (ANRIL) was associated with the chemoresistance of NSCLC. METHOD Real-time polymerase chain reaction was performed to identify potential lncRNAs involved in the chemoresistance of NSCLC, while in-silicon analyses and luciferase assays were carried out to explore the regulatory relationship among ANRIL, miR-125a, and aminopeptidase N (APN). RESULTS Ubenimex resistant cells were associated with a high expression of ANRIL, which directly binds to miR-125a. MiR-125a directly targeted APN expression. In addition, miR-125a and ANRIL small interfering RNA inhibited the expression of APN but promoted the expression of beclin-1 and LC3, whereas ANRIL, by competing with miR-125a, promoted cell proliferation and inhibited cell apoptosis. CONCLUSION The data of this study suggested that, by targeting ANRIL and the APN signaling pathway, miR-125a inhibited the proliferation of NSCLC cells and promoted their apoptosis, thus attenuating the chemoresistance of NSCLC against Ubenimex.
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Affiliation(s)
- Chaoyi Li
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Zhai
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Wan
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingsong Li
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ai Huang
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shijie Xing
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Fan
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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145
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Li C, Fan K, Qu Y, Zhai W, Huang A, Sun X, Xing S. Deregulation of UCA1 expression may be involved in the development of chemoresistance to cisplatin in the treatment of non‐small‐cell lung cancer via regulating the signaling pathway of microRNA‐495/NRF2. J Cell Physiol 2019; 235:3721-3730. [PMID: 31583720 DOI: 10.1002/jcp.29266] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/03/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Chaoyi Li
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Kai Fan
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Yue Qu
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Wei Zhai
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Ai Huang
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Xiangfu Sun
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
| | - Shijie Xing
- Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
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146
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Sun H, Dai K, Zhai W, Zhou Y, Li J, Zheng G, Li B, Liu C, Shen C. A Highly Sensitive and Stretchable Yarn Strain Sensor for Human Motion Tracking Utilizing a Wrinkle-Assisted Crack Structure. ACS Appl Mater Interfaces 2019; 11:36052-36062. [PMID: 31498581 DOI: 10.1021/acsami.9b09229] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
With the booming development of flexible electronics, the need for a multifunctional and high-performance strain sensor has become increasingly important. Although significant progress has been made in designing new microstructures with sensing capabilities, the tradeoff between sensitivity and workable strain range has prevented the development of a strain sensor that is both highly sensitive and also stretchable. Here, a wrinkle-assisted crack microstructure is designed and fabricated via prestretching the multiwalled carbon nanotubes ink (CNTs ink)/polyurethane yarn (PU yarn). This designed structure originates from the mismatch in Young's modulus and elasticity between the CNTs ink and PU yarn during the stretching process. The structure endows the sensor with combined characteristics of a high sensitivity toward stretching strain (gauge factor of 1344.1 at 200% strain), an ultralow limit of detection (<0.1% strain), excellent durability (>10 000 cycles), a wide workable strain range (0-200%), and outstanding response and stability toward bending deformation. This high-performance strain sensor will see widespread improved performance across applications such as intelligent fabrics, electrical skins, and fatigue detection for full-range human motion monitoring.
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Affiliation(s)
- Hongling Sun
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Kun Dai
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Wei Zhai
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Yujie Zhou
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Jianwei Li
- Henan Building Materials Research and Design Institute Co., Ltd , Zhengzhou 450001 , China
| | - Guoqiang Zheng
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Bo Li
- Department of Mechanical Engineering , Villanova University , Villanova , Pennsylvania 19085 , United States
| | - Chuntai Liu
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
| | - Changyu Shen
- School of Materials Science and Engineering, Key Laboratory of Materials Processing and Mold, Ministry of Education; Henan Key Laboratory of Advanced Nylon Materials and Application; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou 450001 , China
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Tan A, Chua K, Takano A, Alvarez J, Ong B, Koh T, Aung Z, Jain A, Lai G, Tan W, Ang M, Ng Q, Kanesvaran R, Rajasekaran T, Iyer N, Lim W, Zhai W, Toh C, Skanderup A, Tan E, Tan D. P1.17-07 Neoadjuvant Gefitinib in Resectable Early Stage EGFR Mutant Non-Small Cell Lung Cancer (NSCLC): A Window-of-Opportunity Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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148
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Chen X, Zhang X, Du M, Dong C, Cao L, Wei R, Liu C, Zhai W, Wang B, Xin J. In vivo preclinical PET/CT imaging of carbon-11-labeled aminoglycerol probe for the diagnosis of liver fibrosis. Ann Nucl Med 2019; 33:806-812. [PMID: 31388833 DOI: 10.1007/s12149-019-01391-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 03/10/2019] [Accepted: 07/30/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE As an important membrane protein, aquaglyceroporin involves liver glycerol metabolism, which can be used to stage liver fibrosis. In this study, we synthesized a novel molecular probe carbon-11-labeled AR ([11C]AR) with aminoglycerol (AR), and evaluated its preclinical performance for liver fibrosis diagnosis by positron emission tomography/computed tomography (PET/CT) imaging in vivo. METHODS We developed a fully automatic synthesis procedure for the preparation of [11C]AR by radiolabeling glycerol analogue precursor AR with carbon-11. The liver uptake kinetics of [11C]AR was investigated using a rat model by the PET/CT scanner. The dynamic PET/CT scans were performed between the control group (n = 5) and experimental group (n = 25), which was divided into three subgroups (S1, S2 + S3, S4) based on the stages of liver fibrosis. The regions of interest (ROIs) of 20 pixels were drawn in the liver area on the reconstructed images. One-way analysis of variance and independent sample t test were used to analyze the statistical difference of the maximum standardized uptake value (SUVmax) among the groups at series of scanning time points (20 s, 60 s, 90 s, 150 s, 5 min, 10 min, 20 min and 25 min). RESULTS The fully automatic synthesis of [11C]AR was successfully achieved with high synthesis efficiency (above 50%). The uptake of [11C]AR in progressive liver fibrosis tissues was significantly lower than that in healthy livers at all the imaging time points (P < 0.05), especially at early time points (before 10 min p.i.). A cut-off SUVmax value (1.1) at 150 s p.i. was set for discrimination progressive fibrosis from healthy liver. More experimental and healthy rats were tested with this new threshold to evaluate fibrosis situation. The sensitivity of detecting progressive fibrosis with [11C]AR was 100% in the second cohort. CONCLUSION We demonstrated a new carbon-11-radiolabeled aminoglycerol PET/CT imaging probe [11C]AR for liver fibrosis diagnosis and staging, which may allow potential assessment of liver fibrosis stages in a rapid and noninvasive method.
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Affiliation(s)
- Xi Chen
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Xin Zhang
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Ming Du
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Chengyan Dong
- GE Healthcare, Beijing, 100076, People's Republic of China
| | - Li Cao
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Rucheng Wei
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Changping Liu
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Wei Zhai
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Bo Wang
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China
| | - Jun Xin
- Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China.
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149
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Gong D, Zhang J, Chen Y, Xu Y, Ma J, Hu G, Huang Y, Zheng J, Zhai W, Xue W. The m 6A-suppressed P2RX6 activation promotes renal cancer cells migration and invasion through ATP-induced Ca 2+ influx modulating ERK1/2 phosphorylation and MMP9 signaling pathway. J Exp Clin Cancer Res 2019; 38:233. [PMID: 31159832 PMCID: PMC6547495 DOI: 10.1186/s13046-019-1223-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/09/2019] [Indexed: 12/24/2022]
Abstract
Background Previous study demonstrated that extracellular ATP could promote cell migration and invasion in multiple human cancers. Till now, the pro-invasive mechanisms of ATP and P2RX6, a preferred receptor for ATP, are still poorly studied in RCC. Methods Bioinformatics analysis was performed to identify the differentially expressed genes during RCC different stages. Tissue microarray, IHC staining and survival analysis was respectively used to evaluate potential clinical function. In vitro and in vivo assays were performed to explore the P2RX6 biological effects in RCC progression. Results We found that ATP might increase RCC cells migration and invasion through P2RX6. Mechanism dissection revealed that ATP-P2RX6 might modulate the Ca2+-mediated p-ERK1/2/MMP9 signaling to increase the RCC cells migration and invasion. Furthermore, METTL14 implicated m6A modification in RCC and down-regulated P2RX6 protein translation. In addition, human clinical survey also indicated the positive correlation of this newly identified signaling in RCC progression and prognosis. Conclusions Our findings revealed that the newly identified ATP-P2RX6-Ca2+-p-ERK1/2-MMP9 signaling facilitates RCC cell invasion and metastasis. Targeting this novel signaling pathway with small molecules might help us to develop a new approach to better suppress RCC progression. Electronic supplementary material The online version of this article (10.1186/s13046-019-1223-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dongkui Gong
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yunfei Xu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Junjie Ma
- Department of Urology, Pudong Hospital, School of Medicine in Fudan University, Shanghai, 201300, China
| | - Guanghui Hu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Yiran Huang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Junhua Zheng
- Department of Urology, Shanghai First People's Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200080, China.
| | - Wei Zhai
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200127, China.
| | - Wei Xue
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, Shanghai, 200127, China.
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150
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Liu JM, Wu WH, Zhai W, Wei B. Ultrasonic modulation of phase separation and corrosion resistance for ternary Cu-Sn-Bi immiscible alloy. Ultrason Sonochem 2019; 54:281-289. [PMID: 30712857 DOI: 10.1016/j.ultsonch.2019.01.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/14/2019] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
The effect of power ultrasound on the liquid phase separation of ternary Cu-32%Sn-20%Bi immiscible alloy is experimentally investigated, which shows that as compared with the layered structure formed under static condition, the macrosegregation resulted from liquid phase separation is remarkably reduced with the increase of ultrasonic amplitude. A homogenous microstructure characterized by refined (Bi) particles dispersing uniformly on the (Cu3Sn) matrix is obtained when the ultrasonic amplitude reaches the highest value of 24 μm. This is mainly ascribed to the ultrasonically induced cavitation and acoustic streaming, which promotes the nucleation, the fragmentation, and the dispersion of (Bi) droplets. The finally solidified immiscible alloy exhibits obvious improvements in electrochemical corrosion resistance, microhardness and wear-resisting if compared with those in static solidification. These results prove that applying power ultrasound is an effective way to modulate the liquid phase separation and enhance the applied performance for immiscible alloys.
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Affiliation(s)
- J M Liu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W H Wu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W Zhai
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - B Wei
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
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