1
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Chen X, Che Z, Wu J, Zeng C, Yang XL, Zhang L, Lin Z. Sterigmatocystin induces autophagic and apoptotic cell death of liver cancer cells via downregulation of XIAP. Heliyon 2024; 10:e29567. [PMID: 38681656 PMCID: PMC11046247 DOI: 10.1016/j.heliyon.2024.e29567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 05/01/2024] Open
Abstract
XIAP, or the X-linked Inhibitor of Apoptosis Protein, is the most extensively studied member within the IAP gene family. It possesses the capability to impede apoptosis through direct inhibition of caspase activity. Various kinds of cancers overexpress XIAP to enable cancer cells to avoid apoptosis. Consequently, the inhibition of XIAP holds significant clinical implications for the development of anti-tumor medications and the treatment of cancer. In this study, sterigmatocystin, a natural compound obtained from the genus asperigillus, was demonstrated to be able to induce apoptotic and autophagic cell death in liver cancer cells. Mechanistically, sterigmatocystin induces apoptosis by downregulation of XIAP expression. Additionally, sterigmatocystin treatment induces cell cycle arrest, blocks cell proliferation, and slows down colony formation in liver cancer cells. Importantly, sterigmatocystin exhibits a remarkable therapeutic effect in a nude mice model. Our findings revealed a novel mechanism through which sterigmatocystin induces apoptotic and autophagic cell death of liver cancer cells by suppressing XIAP expression, this offers a promising therapeutic approach for treating liver cancer patients.
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Affiliation(s)
- Xu Chen
- Chongqing University Jiangjin Hospital, Chongqing, 402260, PR China
- School of Life Sciences, Chongqing University, Chongqing, 401331, PR China
| | - Zhengping Che
- School of Life Sciences, Chongqing University, Chongqing, 401331, PR China
| | - Jiajia Wu
- School of Life Sciences, Chongqing University, Chongqing, 401331, PR China
| | - Cheng Zeng
- School of Life Sciences, Chongqing University, Chongqing, 401331, PR China
| | - Xiao-long Yang
- The School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, 430074, PR China
| | - Lin Zhang
- Chongqing University Jiangjin Hospital, Chongqing, 402260, PR China
| | - Zhenghong Lin
- Chongqing University Jiangjin Hospital, Chongqing, 402260, PR China
- School of Life Sciences, Chongqing University, Chongqing, 401331, PR China
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2
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Wang H, Che Z, Yang Y, Wang M, Xu Z, Qiao X, Qi M, Feng F, Tang J. RDFC-GAN: RGB-Depth Fusion CycleGAN for Indoor Depth Completion. IEEE Trans Pattern Anal Mach Intell 2024; PP:1-14. [PMID: 38607716 DOI: 10.1109/tpami.2024.3388004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Raw depth images captured in indoor scenarios frequently exhibit extensive missing values due to the inherent limitations of the sensors and environments. For example, transparent materials frequently elude detection by depth sensors; surfaces may introduce measurement inaccuracies due to their polished textures, extended distances, and oblique incidence angles from the sensor. The presence of incomplete depth maps imposes significant challenges for subsequent vision applications, prompting the development of numerous depth completion techniques to mitigate this problem. Numerous methods excel at reconstructing dense depth maps from sparse samples, but they often falter when faced with extensive contiguous regions of missing depth values, a prevalent and critical challenge in indoor environments. To overcome these challenges, we design a novel two-branch end-to-end fusion network named RDFC-GAN, which takes a pair of RGB and incomplete depth images as input to predict a dense and completed depth map. The first branch employs an encoder-decoder structure, by adhering to the Manhattan world assumption and utilizing normal maps from RGB-D information as guidance, to regress the local dense depth values from the raw depth map. The other branch applies an RGB-depth fusion CycleGAN, adept at translating RGB imagery into detailed, textured depth maps while ensuring high fidelity through cycle consistency. We fuse the two branches via adaptive fusion modules named W-AdaIN and train the model with the help of pseudo depth maps. Comprehensive evaluations on NYU-Depth V2 and SUN RGB-D datasets show that our method significantly enhances depth completion performance particularly in realistic indoor settings.
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3
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Guan Y, Liu N, Zhao P, Che Z, Bian K, Wang Y, Tang J. DAIS: Automatic Channel Pruning via Differentiable Annealing Indicator Search. IEEE Trans Neural Netw Learn Syst 2023; 34:9847-9858. [PMID: 35380974 DOI: 10.1109/tnnls.2022.3161284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The convolutional neural network (CNN) has achieved great success in fulfilling computer vision tasks despite large computation overhead against efficient deployment. Channel pruning is usually applied to reduce the model redundancy while preserving the network structure, such that the pruned network can be easily deployed in practice. However, existing channel pruning methods require hand-crafted rules, which can result in a degraded model performance with respect to the tremendous potential pruning space given large neural networks. In this article, we introduce differentiable annealing indicator search (DAIS) that leverages the strength of neural architecture search in the channel pruning and automatically searches for the effective pruned model with given constraints on computation overhead. Specifically, DAIS relaxes the binarized channel indicators to be continuous and then jointly learns both indicators and model parameters via bi-level optimization. To bridge the non-negligible discrepancy between the continuous model and the target binarized model, DAIS proposes an annealing-based procedure to steer the indicator convergence toward binarized states. Moreover, DAIS designs various regularizations based on a priori structural knowledge to control the pruning sparsity and to improve model performance. Experimental results show that DAIS outperforms state-of-the-art pruning methods on CIFAR-10, CIFAR-100, and ImageNet.
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4
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Zhou Y, Lu M, Liu X, Che Z, Xu Z, Tang J, Zhang Y, Peng Y, Peng Y. Distributional generative adversarial imitation learning with reproducing kernel generalization. Neural Netw 2023; 165:43-59. [PMID: 37276810 DOI: 10.1016/j.neunet.2023.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 04/16/2023] [Accepted: 05/16/2023] [Indexed: 06/07/2023]
Abstract
Generative adversarial imitation learning (GAIL) regards imitation learning (IL) as a distribution matching problem between the state-action distributions of the expert policy and the learned policy. In this paper, we focus on the generalization and computational properties of policy classes. We prove that the generalization can be guaranteed in GAIL when the class of policies is well controlled. With the capability of policy generalization, we introduce distributional reinforcement learning (RL) into GAIL and propose the greedy distributional soft gradient (GDSG) algorithm to solve GAIL. The main advantages of GDSG can be summarized as: (1) Q-value overestimation, a crucial factor leading to the instability of GAIL with off-policy training, can be alleviated by distributional RL. (2) By considering the maximum entropy objective, the policy can be improved in terms of performance and sample efficiency through sufficient exploration. Moreover, GDSG attains a sublinear convergence rate to a stationary solution. Comprehensive experimental verification in MuJoCo environments shows that GDSG can mimic expert demonstrations better than previous GAIL variants.
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Affiliation(s)
- Yirui Zhou
- Department of Mathematics, College of Sciences, Shanghai University, Shanghai, 200444, China.
| | - Mengxiao Lu
- Department of Mathematics, College of Sciences, Shanghai University, Shanghai, 200444, China.
| | - Xiaowei Liu
- Department of Mathematics, College of Sciences, Shanghai University, Shanghai, 200444, China.
| | | | | | - Jian Tang
- Midea Group, Shanghai, 201702, China.
| | - Yangchun Zhang
- Department of Mathematics, College of Sciences, Shanghai University, Shanghai, 200444, China.
| | - Yan Peng
- School of Artificial Intelligence, Shanghai University, Shanghai, 200444, China.
| | - Yaxin Peng
- Department of Mathematics, College of Sciences, Shanghai University, Shanghai, 200444, China.
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5
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Hu W, Che Z, Liu N, Li M, Tang J, Zhang C, Wang J. CATRO: Channel Pruning via Class-Aware Trace Ratio Optimization. IEEE Trans Neural Netw Learn Syst 2023; PP:1-13. [PMID: 37023168 DOI: 10.1109/tnnls.2023.3262952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Deep convolutional neural networks are shown to be overkill with high parametric and computational redundancy in many application scenarios, and an increasing number of works have explored model pruning to obtain lightweight and efficient networks. However, most existing pruning approaches are driven by empirical heuristics and rarely consider the joint impact of channels, leading to unguaranteed and suboptimal performance. In this article, we propose a novel channel pruning method via class-aware trace ratio optimization (CATRO) to reduce the computational burden and accelerate the model inference. Utilizing class information from a few samples, CATRO measures the joint impact of multiple channels by feature space discriminations and consolidates the layerwise impact of preserved channels. By formulating channel pruning as a submodular set function maximization problem, CATRO solves it efficiently via a two-stage greedy iterative optimization procedure. More importantly, we present theoretical justifications on convergence of CATRO and performance of pruned networks. Experimental results demonstrate that CATRO achieves higher accuracy with similar computation cost or lower computation cost with similar accuracy than other state-of-the-art channel pruning algorithms. In addition, because of its class-aware property, CATRO is suitable to prune efficient networks adaptively for various classification subtasks, enhancing handy deployment and usage of deep networks in real-world applications.
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6
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Che Z, Ye Z, Zhang X, Lin B, Yang W, Liang Y, Zeng J. Mesenchymal stem/stromal cells in the pathogenesis and regenerative therapy of inflammatory bowel diseases. Front Immunol 2022; 13:952071. [PMID: 35990688 PMCID: PMC9386516 DOI: 10.3389/fimmu.2022.952071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/12/2022] [Indexed: 12/02/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) represent a group of chronic inflammatory disorders of the gastrointestinal (GI) tract including ulcerative colitis (UC), Crohn’s disease (CD), and unclassified IBDs. The pathogenesis of IBDs is related to genetic susceptibility, environmental factors, and dysbiosis that can lead to the dysfunction of immune responses and dysregulated homeostasis of local mucosal tissues characterized by severe inflammatory responses and tissue damage in GI tract. To date, extensive studies have indicated that IBDs cannot be completely cured and easy to relapse, thus prompting researchers to find novel and more effective therapeutics for this disease. Due to their potent multipotent differentiation and immunomodulatory capabilities, mesenchymal stem/stromal cells (MSCs) not only play an important role in regulating immune and tissue homeostasis but also display potent therapeutic effects on various inflammatory diseases, including IBDs, in both preclinical and clinical studies. In this review, we present a comprehensive overview on the pathological mechanisms, the currently available therapeutics, particularly, the potential application of MSCs-based regenerative therapy for IBDs.
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Affiliation(s)
- Zhengping Che
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Department of Pathology, Dongguan Hospital Affiliated to Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Ziyu Ye
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Xueying Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Bihua Lin
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, School of Basic Medicine, Guangdong Medical University, Dongguan, China
- Collaborative Innovation Center for Antitumor Active Substance Research and Development, Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
| | - Weiqing Yang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yanfang Liang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Department of Pathology, Dongguan Hospital Affiliated to Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, China
- *Correspondence: Jincheng Zeng, ; Yanfang Liang,
| | - Jincheng Zeng
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, School of Basic Medicine, Guangdong Medical University, Dongguan, China
- Collaborative Innovation Center for Antitumor Active Substance Research and Development, Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
- Dongguan Metabolite Analysis Engineering Technology Center of Cells for Medical Use, Guangdong Xinghai Institute of Cell, Dongguan, China
- *Correspondence: Jincheng Zeng, ; Yanfang Liang,
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7
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Wang X, Che Z, Jiang B, Xiao N, Yang K, Tang J, Ye J, Wang J, Qi Q. Robust Unsupervised Video Anomaly Detection by Multipath Frame Prediction. IEEE Trans Neural Netw Learn Syst 2022; 33:2301-2312. [PMID: 34086581 DOI: 10.1109/tnnls.2021.3083152] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Video anomaly detection is commonly used in many applications, such as security surveillance, and is very challenging. A majority of recent video anomaly detection approaches utilize deep reconstruction models, but their performance is often suboptimal because of insufficient reconstruction error differences between normal and abnormal video frames in practice. Meanwhile, frame prediction-based anomaly detection methods have shown promising performance. In this article, we propose a novel and robust unsupervised video anomaly detection method by frame prediction with a proper design which is more in line with the characteristics of surveillance videos. The proposed method is equipped with a multipath ConvGRU-based frame prediction network that can better handle semantically informative objects and areas of different scales and capture spatial-temporal dependencies in normal videos. A noise tolerance loss is introduced during training to mitigate the interference caused by background noise. Extensive experiments have been conducted on the CUHK Avenue, ShanghaiTech Campus, and UCSD Pedestrian datasets, and the results show that our proposed method outperforms existing state-of-the-art approaches. Remarkably, our proposed method obtains the frame-level AUROC score of 88.3% on the CUHK Avenue dataset.
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8
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Huang J, Yang Z, Li Y, Chai X, Liang Y, Lin B, Ye Z, Zhang S, Che Z, Zhang H, Zhang X, Zhang Z, Chen T, Yang W, Zeng J. Lactobacillus paracasei R3 protects against dextran sulfate sodium (DSS)-induced colitis in mice via regulating Th17/Treg cell balance. J Transl Med 2021; 19:356. [PMID: 34407839 PMCID: PMC8371868 DOI: 10.1186/s12967-021-02943-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/13/2021] [Indexed: 12/17/2022] Open
Abstract
Inflammatory bowel diseases (IBD), mainly comprising ulcerative colitis (UC) and Crohn's Disease, are most often a polygenic disorder with contributions from the intestinal microbiome, defects in barrier function, and dysregulated host responses to microbial stimulation. Strategies that target the microbiota have emerged as potential therapies and, of these, probiotics have gained the greatest attention. Herein, we isolated a strain of Lactobacillus paracasei R3 (L.p R3) with strong biofilm formation ability from infant feces. Interestingly, we also found L.p R3 strain can ameliorate the general symptoms of murine colitis, alleviate inflammatory cell infiltration and inhibit Th17 while promote Treg function in murine dextran sulfate sodium (DSS)-induced colitis. Overall, this study suggested that L.p R3 strain significantly improves the symptoms and the pathological damage of mice with colitis and influences the immune function by regulating Th17/Treg cell balance in DSS-induced colitis in mice.
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Affiliation(s)
- Juan Huang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.,Provincial Experimental Teaching Centre, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Ziyan Yang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.,Department of Clinical Laboratories, Xi'an Daxing Hospital, Xi'an 710000, China
| | - Yanyun Li
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Xingxing Chai
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Yanfang Liang
- Department of Pathology, Dongguan Hospital Affiliated To Medical College of Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, 523905, China
| | - Bihua Lin
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Ziyu Ye
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Shaobing Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Zhengping Che
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Hailiang Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Xueying Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Zhao Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.,Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535, Guangdong, China
| | - Tao Chen
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.,Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535, Guangdong, China
| | - Weiqing Yang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.,Department of Clinical Microbiology, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Jincheng Zeng
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.
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9
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Huang J, Yang Z, Li Y, Chai X, Liang Y, Lin B, Ye Z, Zhang S, Che Z, Zhang H, Zhang X, Zhang Z, Chen T, Yang W, Zeng J. Lactobacillus paracasei R3 protects against dextran sulfate sodium (DSS)-induced colitis in mice via regulating Th17/Treg cell balance. J Transl Med 2021; 19:356. [PMID: 34407839 PMCID: PMC8371868 DOI: 10.1186/s12967-021-02943-x 10.1186/s12967-021-02943-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Inflammatory bowel diseases (IBD), mainly comprising ulcerative colitis (UC) and Crohn's Disease, are most often a polygenic disorder with contributions from the intestinal microbiome, defects in barrier function, and dysregulated host responses to microbial stimulation. Strategies that target the microbiota have emerged as potential therapies and, of these, probiotics have gained the greatest attention. Herein, we isolated a strain of Lactobacillus paracasei R3 (L.p R3) with strong biofilm formation ability from infant feces. Interestingly, we also found L.p R3 strain can ameliorate the general symptoms of murine colitis, alleviate inflammatory cell infiltration and inhibit Th17 while promote Treg function in murine dextran sulfate sodium (DSS)-induced colitis. Overall, this study suggested that L.p R3 strain significantly improves the symptoms and the pathological damage of mice with colitis and influences the immune function by regulating Th17/Treg cell balance in DSS-induced colitis in mice.
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Affiliation(s)
- Juan Huang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China ,grid.410560.60000 0004 1760 3078Provincial Experimental Teaching Centre, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808 China
| | - Ziyan Yang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China ,Department of Clinical Laboratories, Xi’an Daxing Hospital, Xi’an 710000, China
| | - Yanyun Li
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Xingxing Chai
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Yanfang Liang
- grid.258164.c0000 0004 1790 3548Department of Pathology, Dongguan Hospital Affiliated To Medical College of Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, 523905 China
| | - Bihua Lin
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Ziyu Ye
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Shaobing Zhang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Zhengping Che
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Hailiang Zhang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Xueying Zhang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Zhao Zhang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China ,Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535 Guangdong China
| | - Tao Chen
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China ,Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535 Guangdong China
| | - Weiqing Yang
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China ,grid.410560.60000 0004 1760 3078Department of Clinical Microbiology, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808 China
| | - Jincheng Zeng
- grid.410560.60000 0004 1760 3078Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
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10
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Huang J, Yang Z, Li Y, Chai X, Liang Y, Lin B, Ye Z, Zhang S, Che Z, Zhang H, Zhang X, Zhang Z, Chen T, Yang W, Zeng J. Lactobacillus paracasei R3 protects against dextran sulfate sodium (DSS)-induced colitis in mice via regulating Th17/Treg cell balance. J Transl Med 2021; 19:356. [PMID: 34407839 PMCID: PMC8371868 DOI: 10.1186/s12967-021-02943-x+10.1186/s12967-021-02943-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/13/2021] [Indexed: 01/20/2024] Open
Abstract
Inflammatory bowel diseases (IBD), mainly comprising ulcerative colitis (UC) and Crohn's Disease, are most often a polygenic disorder with contributions from the intestinal microbiome, defects in barrier function, and dysregulated host responses to microbial stimulation. Strategies that target the microbiota have emerged as potential therapies and, of these, probiotics have gained the greatest attention. Herein, we isolated a strain of Lactobacillus paracasei R3 (L.p R3) with strong biofilm formation ability from infant feces. Interestingly, we also found L.p R3 strain can ameliorate the general symptoms of murine colitis, alleviate inflammatory cell infiltration and inhibit Th17 while promote Treg function in murine dextran sulfate sodium (DSS)-induced colitis. Overall, this study suggested that L.p R3 strain significantly improves the symptoms and the pathological damage of mice with colitis and influences the immune function by regulating Th17/Treg cell balance in DSS-induced colitis in mice.
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Affiliation(s)
- Juan Huang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
- Provincial Experimental Teaching Centre, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808 China
| | - Ziyan Yang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
- Department of Clinical Laboratories, Xi’an Daxing Hospital, Xi’an 710000, China
| | - Yanyun Li
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Xingxing Chai
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Yanfang Liang
- Department of Pathology, Dongguan Hospital Affiliated To Medical College of Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, 523905 China
| | - Bihua Lin
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Ziyu Ye
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Shaobing Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Zhengping Che
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Hailiang Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Xueying Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
| | - Zhao Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
- Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535 Guangdong China
| | - Tao Chen
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
- Research and Development Center, Center of Human Microecology Engineering and Technology of Guangdong Province, Guangzhou, 510535 Guangdong China
| | - Weiqing Yang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
- Department of Clinical Microbiology, Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808 China
| | - Jincheng Zeng
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808 China
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Zhang X, Xie Q, Ye Z, Li Y, Che Z, Huang M, Zeng J. Mesenchymal Stem Cells and Tuberculosis: Clinical Challenges and Opportunities. Front Immunol 2021; 12:695278. [PMID: 34367155 PMCID: PMC8340780 DOI: 10.3389/fimmu.2021.695278] [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: 04/14/2021] [Accepted: 06/30/2021] [Indexed: 12/22/2022] Open
Abstract
Tuberculosis (TB) is one of the communicable diseases caused by Mycobacterium tuberculosis (Mtb) infection, affecting nearly one-third of the world's population. However, because the pathogenesis of TB is still not fully understood and the development of anti-TB drug is slow, TB remains a global public health problem. In recent years, with the gradual discovery and confirmation of the immunomodulatory properties of mesenchymal stem cells (MSCs), more and more studies, including our team's research, have shown that MSCs seem to be closely related to the growth status of Mtb and the occurrence and development of TB, which is expected to bring new hope for the clinical treatment of TB. This article reviews the relationship between MSCs and the occurrence and development of TB and the potential application of MSCs in the treatment of TB.
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Affiliation(s)
- Xueying Zhang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Institute of Laboratory Medicine, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Qi Xie
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Ziyu Ye
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
| | - Yanyun Li
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Institute of Laboratory Medicine, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Zhengping Che
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Institute of Laboratory Medicine, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Mingyuan Huang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jincheng Zeng
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, School of Basic Medicine, Guangdong Medical University, Dongguan, China
- Collaborative Innovation Center for Antitumor Active Substance Research and Development, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
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12
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Liang Y, Wang B, Chen S, Ye Z, Chai X, Li R, Li X, Kong G, Li Y, Zhang X, Che Z, Xie Q, Lian J, Lin B, Zhang X, Huang X, Huang W, Qiu X, Zeng J. Beta-1 syntrophin (SNTB1) regulates colorectal cancer progression and stemness via regulation of the Wnt/β-catenin signaling pathway. Ann Transl Med 2021; 9:1016. [PMID: 34277816 PMCID: PMC8267293 DOI: 10.21037/atm-21-2700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/15/2021] [Indexed: 12/31/2022]
Abstract
Background Beta-1 syntrophin (SNTB1) is an intracellular scaffold protein that provides a platform for the formation of signal transduction complexes, thereby modulating and coordinating various intracellular signaling events and crucial cellular processes. However, the physiological role of SNTB1 is poorly understood. This study aims to explore the role of SNTB1 in colorectal cancer (CRC) tumorigenesis and progression, with particular focus on SNTB1’s expression pattern, clinical relevance, and possible molecular mechanism in CRC development. Methods SNTB1 expression was analyzed in both clinical tissues and The Cancer Genome Atlas (TCGA) database. Real-time polymerase chain reaction (PCR), Western blot, and immunohistochemical assays were used to detect the relative mRNA and protein levels of SNTB1. Statistical analysis was performed to examine the correlation between SNTB1 expression and the clinicopathological characteristics of patients with CRC. Bioinformatics gene set enrichment analysis (GSEA), Western blot, luciferase assay, and agonist recovery assays were conducted to evaluate the relevance of SNTB1 and the β-catenin signaling pathway in CRC. A flow cytometry-based Hoechst 33342 efflux assay was applied to assess the proportion of the side population (SP) within total CRC cells. Results Elevated levels of SNTB1 were identified in CRC tissues and cell lines. The elevation of SNTB1 was positively correlated with the degree of malignancy and poor prognosis in CRC. We further revealed that, by modulating the β-catenin signaling pathway, silencing SNTB1 expression suppressed tumor growth and cancer stemness in vitro, as well as tumorigenesis in vivo. Conclusions These findings suggest that SNTB1 plays a crucial role in colorectal tumorigenesis and progression by modulating β-catenin signaling and the stemness maintenance of cancer cells.
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Affiliation(s)
- Yanfang Liang
- Department of Pathology, Dongguan Hospital Affiliated to Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, China
| | - Bin Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Shasha Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China.,Department of Clinical Laboratory, The Third People's Hospital of Shenzhen, Shenzhen, China
| | - Ziyu Ye
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Xingxing Chai
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China.,Laboratory Animal Center, Guangdong Medical University, Zhanjiang, China
| | - Ronggang Li
- Department of Pathology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Xiaoping Li
- Department of Gastrointestinal Surgery, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Gang Kong
- Department of Gastrointestinal Surgery, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Yanyun Li
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Xueying Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Zhengping Che
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Qi Xie
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Jiachun Lian
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Bihua Lin
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China.,Clinical Experimental Center, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Xin Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China.,Clinical Experimental Center, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China.,Collaborative Innovation Center for Antitumor Active Substance Research and Development, Guangdong Medical University, Zhanjiang, China
| | - Xueqin Huang
- Department of Otolaryngology Second School of Clinical College, Guangdong Medical University, Dongguan, China
| | - Weijuan Huang
- Department of Pharmacy, Dongguan Hospital Affiliated to Jinan University, Marina Bay Central Hospital of Dongguan, Dongguan, China
| | - Xianxiu Qiu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China
| | - Jincheng Zeng
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, China.,Collaborative Innovation Center for Antitumor Active Substance Research and Development, Guangdong Medical University, Zhanjiang, China.,Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, Guangdong Medical University, Dongguan, China
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13
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Yuvaraj J, Cameron W, Andrews J, Lin A, Nerlekar N, Nicholls S, Hamilton G, Wong D, Issa M, Che Z, Lim E. Association of Coronary Inflammation With Obstructive Sleep Apnoea and Coronary Artery Disease: Insights From Computed Tomography Coronary Angiography (CTCA). Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.183] [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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14
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Che Z, Li HW, Wang P, Jiang B, Li B, Zhao K, Wang SP, Gao H, Zhang MQ. The impact of TRAIL on proliferation of secretory prostate cancer PC-3 cell and LMO2 gene expression. Eur Rev Med Pharmacol Sci 2018; 22:7172-7177. [PMID: 30468458 DOI: 10.26355/eurrev_201811_16249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To determine the expressions of TRAIL protein and LMO2 gene in prostate cancer tissues with different differentiation degree and identify the influence of TRAIL on prostate cancer PC-3 cell proliferation. PATIENTS AND METHODS Surgical specimens from a total of 30 prostate cancer patients with radical prostatectomy were collected. The subjects were divided into three groups according to the different degrees of differentiation. TRAIL positive rate was detected by immunohistochemistry (IHC). LMO2 expression was assessed by Real-time PCR and Western-blot. PC-3 cell proliferation was determined by CCK-8 assay. RESULTS The positive rate of TRAIL protein was significantly higher in moderately differentiated group (80%) and well differentiated group (100%) compared with that in poorly differentiated group (54.55%), respectively (χ2 = 27.33, p < 0.05; χ2 = 40.12, p < 0.01). Streptavidin-peroxidase (SP) assay showed that TRAIL protein expression in well-differentiated group was significantly higher than that in moderately differentiated group and poorly differentiated group. qRT-PCR result demonstrated that LMO2 mRNA levels in moderately and well-differentiated group were significantly increased compared to that in poorly differentiated group (p < 0.001). Also, the proliferation rate of PC-3 cells in well-differentiated group was significantly higher than that in well-differentiated and moderately differentiated groups (p < 0.05). CONCLUSION Our data indicated that the positive rate of TRAIL protein increased in a prostate cancer differentiation dependent manner.
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Affiliation(s)
- Z Che
- Department of Urologic Surgery, ZiBo Central Hospital, ZiBo, Shandong, China.
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15
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Che Z, Purushotham S, Cho K, Sontag D, Liu Y. Recurrent Neural Networks for Multivariate Time Series with Missing Values. Sci Rep 2018; 8:6085. [PMID: 29666385 PMCID: PMC5904216 DOI: 10.1038/s41598-018-24271-9] [Citation(s) in RCA: 333] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/26/2018] [Indexed: 11/08/2022] Open
Abstract
Multivariate time series data in practical applications, such as health care, geoscience, and biology, are characterized by a variety of missing values. In time series prediction and other related tasks, it has been noted that missing values and their missing patterns are often correlated with the target labels, a.k.a., informative missingness. There is very limited work on exploiting the missing patterns for effective imputation and improving prediction performance. In this paper, we develop novel deep learning models, namely GRU-D, as one of the early attempts. GRU-D is based on Gated Recurrent Unit (GRU), a state-of-the-art recurrent neural network. It takes two representations of missing patterns, i.e., masking and time interval, and effectively incorporates them into a deep model architecture so that it not only captures the long-term temporal dependencies in time series, but also utilizes the missing patterns to achieve better prediction results. Experiments of time series classification tasks on real-world clinical datasets (MIMIC-III, PhysioNet) and synthetic datasets demonstrate that our models achieve state-of-the-art performance and provide useful insights for better understanding and utilization of missing values in time series analysis.
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Affiliation(s)
- Zhengping Che
- University of Southern California, Department of Computer Science, Los Angeles, CA, 90089, USA.
| | - Sanjay Purushotham
- University of Southern California, Department of Computer Science, Los Angeles, CA, 90089, USA
| | - Kyunghyun Cho
- New York University, Department of Computer Science, New York, NY, 10012, USA
| | - David Sontag
- Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, Cambridge, MA, 02139, USA
| | - Yan Liu
- University of Southern California, Department of Computer Science, Los Angeles, CA, 90089, USA
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16
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Che Z, St Sauver J, Liu H, Liu Y. Deep Learning Solutions for Classifying Patients on Opioid Use. AMIA Annu Symp Proc 2018; 2017:525-534. [PMID: 29854117 PMCID: PMC5977635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Opioid analgesics, as commonly prescribed medications used for relieving pain in patients, are especially prevalent in US these years. However, an increasing amount of opioid misuse and abuse have caused lots of consequences. Researchers and clinicians have attempted to discover the factors leading to opioid long-term use, dependence, and abuse, but only limited incidents are understood from previous works. Motivated by recent successes of deep learning and the abundant amount of electronic health records, we apply state-of-the-art deep and recurrent neural network models on a dataset of more than one hundred thousand opioid users. Our models are shown to achieve robust and superior results on classifying opioid users, and are able to extract key factors for different opioid user groups. This work is also a good demonstration on adopting novel deep learning methods for real-world health care problems.
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Affiliation(s)
- Zhengping Che
- Department of Computer Science, University of Southern California, Los Angeles, CA
| | - Jennifer St Sauver
- Department of Computer Science, University of Southern California, Los Angeles, CA
| | - Hongfang Liu
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Yan Liu
- Department of Computer Science, University of Southern California, Los Angeles, CA
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Hung A, Chen J, Che Z, Nilanon T, Jarc A, Guo L, Oh P, Gill I, Liu Y. PD58-01 UTILIZATION OF MACHINE LEARNING AND AUTOMATED PERFORMANCE METRICS TO EVALUATE ROBOT-ASSISTED RADICAL PROSTATECTOMY PERFORMANCE AND PREDICT PATIENT OUTCOMES. J Urol 2018. [DOI: 10.1016/j.juro.2018.02.2789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Hung AJ, Chen J, Che Z, Nilanon T, Jarc A, Titus M, Oh PJ, Gill IS, Liu Y. Utilizing Machine Learning and Automated Performance Metrics to Evaluate Robot-Assisted Radical Prostatectomy Performance and Predict Outcomes. J Endourol 2018; 32:438-444. [PMID: 29448809 DOI: 10.1089/end.2018.0035] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Surgical performance is critical for clinical outcomes. We present a novel machine learning (ML) method of processing automated performance metrics (APMs) to evaluate surgical performance and predict clinical outcomes after robot-assisted radical prostatectomy (RARP). MATERIALS AND METHODS We trained three ML algorithms utilizing APMs directly from robot system data (training material) and hospital length of stay (LOS; training label) (≤2 days and >2 days) from 78 RARP cases, and selected the algorithm with the best performance. The selected algorithm categorized the cases as "Predicted as expected LOS (pExp-LOS)" and "Predicted as extended LOS (pExt-LOS)." We compared postoperative outcomes of the two groups (Kruskal-Wallis/Fisher's exact tests). The algorithm then predicted individual clinical outcomes, which we compared with actual outcomes (Spearman's correlation/Fisher's exact tests). Finally, we identified five most relevant APMs adopted by the algorithm during predicting. RESULTS The "Random Forest-50" (RF-50) algorithm had the best performance, reaching 87.2% accuracy in predicting LOS (73 cases as "pExp-LOS" and 5 cases as "pExt-LOS"). The "pExp-LOS" cases outperformed the "pExt-LOS" cases in surgery time (3.7 hours vs 4.6 hours, p = 0.007), LOS (2 days vs 4 days, p = 0.02), and Foley duration (9 days vs 14 days, p = 0.02). Patient outcomes predicted by the algorithm had significant association with the "ground truth" in surgery time (p < 0.001, r = 0.73), LOS (p = 0.05, r = 0.52), and Foley duration (p < 0.001, r = 0.45). The five most relevant APMs, adopted by the RF-50 algorithm in predicting, were largely related to camera manipulation. CONCLUSION To our knowledge, ours is the first study to show that APMs and ML algorithms may help assess surgical RARP performance and predict clinical outcomes. With further accrual of clinical data (oncologic and functional data), this process will become increasingly relevant and valuable in surgical assessment and training.
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Affiliation(s)
- Andrew J Hung
- 1 Catherine & Joseph Aresty Department of Urology, Center for Robotic Simulation & Education, USC Institute of Urology, University of Southern California , Los Angeles, California
| | - Jian Chen
- 1 Catherine & Joseph Aresty Department of Urology, Center for Robotic Simulation & Education, USC Institute of Urology, University of Southern California , Los Angeles, California
| | - Zhengping Che
- 2 USC Machine Learning Center, Viterbi School of Engineering, University of Southern California , Los Angeles, California
| | - Tanachat Nilanon
- 2 USC Machine Learning Center, Viterbi School of Engineering, University of Southern California , Los Angeles, California
| | - Anthony Jarc
- 3 Medical Research, Intuitive Surgical, Inc. , Norcross, Georgia
| | - Micha Titus
- 1 Catherine & Joseph Aresty Department of Urology, Center for Robotic Simulation & Education, USC Institute of Urology, University of Southern California , Los Angeles, California
| | - Paul J Oh
- 1 Catherine & Joseph Aresty Department of Urology, Center for Robotic Simulation & Education, USC Institute of Urology, University of Southern California , Los Angeles, California
| | - Inderbir S Gill
- 1 Catherine & Joseph Aresty Department of Urology, Center for Robotic Simulation & Education, USC Institute of Urology, University of Southern California , Los Angeles, California
| | - Yan Liu
- 2 USC Machine Learning Center, Viterbi School of Engineering, University of Southern California , Los Angeles, California
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Che Z, Purushotham S, Khemani R, Liu Y. Interpretable Deep Models for ICU Outcome Prediction. AMIA Annu Symp Proc 2017; 2016:371-380. [PMID: 28269832 PMCID: PMC5333206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Exponential surge in health care data, such as longitudinal data from electronic health records (EHR), sensor data from intensive care unit (ICU), etc., is providing new opportunities to discover meaningful data-driven characteristics and patterns ofdiseases. Recently, deep learning models have been employedfor many computational phenotyping and healthcare prediction tasks to achieve state-of-the-art performance. However, deep models lack interpretability which is crucial for wide adoption in medical research and clinical decision-making. In this paper, we introduce a simple yet powerful knowledge-distillation approach called interpretable mimic learning, which uses gradient boosting trees to learn interpretable models and at the same time achieves strong prediction performance as deep learning models. Experiment results on Pediatric ICU dataset for acute lung injury (ALI) show that our proposed method not only outperforms state-of-the-art approaches for morality and ventilator free days prediction tasks but can also provide interpretable models to clinicians.
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Affiliation(s)
- Zhengping Che
- University of Southern California, Los Angeles, CA, USA
| | | | | | - Yan Liu
- University of Southern California, Los Angeles, CA, USA
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Jiang L, Su P, Yang T, Zhu X, Yao F, Che Z, Ma H, Wang J, Chen Q. Diversity of killer cell immunoglobulin-like receptor genes in Drung Chinese. HLA 2016; 89:14-19. [PMID: 27807936 DOI: 10.1111/tan.12923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 09/16/2016] [Accepted: 10/13/2016] [Indexed: 11/30/2022]
Abstract
Killer cell immunoglobulin-like receptor (KIR) genes are variably distributed among populations from distinct geographic areas and ethnic origins. We describe, for the first time, KIR gene diversity in 152 unrelated and healthy Drung individuals, as measured by sequence-specific polymerase chain reaction. All 16 known KIR genes were detected. Of these, the framework genes KIR2DL4, 3DL2, 3DL3, and 3DP1 were present in all individuals as expected, along with the non-framework genes KIR2DL1, 2DL3, and 2DP1. In contrast, KIR2DL2, 2DS2, and 2DS5 were unusually rare, suggesting that KIR gene distribution was relatively concentrated. Ten different KIR genotypes were found, of which the most common consisted of nine genes (KIR2DL1, 2DL3, 2DL4, 2DS4, 3DL1, 3DL2, 3DL3, 2DP1, and 3DP1) and accounted for 66.4% of participants. There were eight different haplotypes present, of which the A haplotype was the most common (81.9%). Principal components and dendrogram analysis confirmed that the Drung Chinese are most closely related to the Japanese, the Zhejiang Han, and the Yunnan Han. In conclusion, distinctive frequencies of KIR genes, haplotypes, and genotypes are observed in Chinese Drung.
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Affiliation(s)
- L Jiang
- Clinical Transfusion Research Center, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - P Su
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - T Yang
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - X Zhu
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - F Yao
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - Z Che
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - H Ma
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Yunnan Kunming, China
| | - J Wang
- Clinical Transfusion Research Center, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Q Chen
- Clinical Transfusion Research Center, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China.,HLA Typing Laboratory, Sichuan Cord Blood Bank, Chengdu, China
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Kale DC, Che Z, Bahadori MT, Li W, Liu Y, Wetzel R. Causal Phenotype Discovery via Deep Networks. AMIA Annu Symp Proc 2015; 2015:677-86. [PMID: 26958203 PMCID: PMC4765623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The rapid growth of digital health databases has attracted many researchers interested in using modern computational methods to discover and model patterns of health and illness in a research program known as computational phenotyping. Much of the work in this area has focused on traditional statistical learning paradigms, such as classification, prediction, clustering, pattern mining. In this paper, we propose a related but different paradigm called causal phenotype discovery, which aims to discover latent representations of illness that are causally predictive. We illustrate this idea with a two-stage framework that combines the latent representation learning power of deep neural networks with state-of-the-art tools from causal inference. We apply this framework to two large ICU time series data sets and show that it can learn features that are predictively useful, that capture complex physiologic patterns associated with critical illnesses, and that are potentially more clinically meaningful than manually designed features.
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Affiliation(s)
- David C Kale
- University of Southern California, Los Angeles, CA; Whittier Virtual PICU, Children's Hospital Los Angeles, Los Angeles, CA
| | | | | | - Wenzhe Li
- University of Southern California, Los Angeles, CA
| | - Yan Liu
- University of Southern California, Los Angeles, CA
| | - Randall Wetzel
- Whittier Virtual PICU, Children's Hospital Los Angeles, Los Angeles, CA
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Zhu X, Yang T, Yao F, Che Z, Su P, Luo Z, Tan R. A new human leukocyte antigen-A allele, HLA-A*02:482. ACTA ACUST UNITED AC 2014; 84:238-9. [PMID: 24903058 DOI: 10.1111/tan.12378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 03/26/2014] [Accepted: 04/20/2014] [Indexed: 11/28/2022]
Affiliation(s)
- X Zhu
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Kunming, PR China
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Che Z, Xu H. One-pot Synthesis of Dibenzofurans via SNAr and Subsequent Ligand-free Palladium-catalyzed Intramolecular Aryl-aryl Cross-coupling Reactions under Microwave Irradiation. Z Naturforsch B 2011. [DOI: 10.5560/znb.2011.66b0833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Affiliation(s)
- ED Raczynska
- Institute of General Chemistry, Agricultural University, 02-528 Warsaw, Poland
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Che Z, Olson NH, Leippe D, Lee WM, Mosser AG, Rueckert RR, Baker TS, Smith TJ. Antibody-mediated neutralization of human rhinovirus 14 explored by means of cryoelectron microscopy and X-ray crystallography of virus-Fab complexes. J Virol 1998; 72:4610-22. [PMID: 9573224 PMCID: PMC109976 DOI: 10.1128/jvi.72.6.4610-4622.1998] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/1997] [Accepted: 02/12/1998] [Indexed: 02/07/2023] Open
Abstract
The structures of three different human rhinovirus 14 (HRV14)-Fab complexes have been explored with X-ray crystallography and cryoelectron microscopy procedures. All three antibodies bind to the NIm-IA site of HRV14, which is the beta-B-beta-C loop of the viral capsid protein VP1. Two antibodies, Fab17-IA (Fab17) and Fab12-IA (Fab12), bind bivalently to the virion surface and strongly neutralize viral infectivity whereas Fab1-IA (Fab1) strongly aggregates and weakly neutralizes virions. The structures of the two classes of virion-Fab complexes clearly differ and correlate with observed binding neutralization differences. Fab17 and Fab12 bind in essentially identical, tangential orientations to the viral surface, which favors bidentate binding over icosahedral twofold axes. Fab1 binds in a more radial orientation that makes bidentate binding unlikely. Although the binding orientations of these two antibody groups differ, nearly identical charge interactions occur at all paratope-epitope interfaces. Nucleotide sequence comparisons suggest that Fab17 and Fab12 are from the same progenitor cell and that some of the differing residues contact the south wall of the receptor binding canyon that encircles each of the icosahedral fivefold vertices. All of the antibodies contact a significant proportion of the canyon region and directly overlap much of the receptor (intercellular adhesion molecule 1 [ICAM-1]) binding site. Fab1, however, does not contact the same residues on the upper south wall (the side facing away from fivefold axes) at the receptor binding region as do Fab12 and Fab17. All three antibodies cause some stabilization of HRV14 against pH-induced inactivation; thus, stabilization may be mediated by invariant contacts with the canyon.
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Affiliation(s)
- Z Che
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA
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Li Y, Che Z, Liang M. [Study on the immune state of patients with laryngeal carcinoma]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1997; 11:69-72. [PMID: 9644185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The authors have carried out the immunoassay on 68 patients with laryngeal carcinoma in order to investigate the relationship between the occurrence and development of the tumour and the body immune state by using the methods of R1D, APAAP and LDH. The results showed that, in comparison with the normal group, CD3+, CD4+ cell and NK cell activity were much lower (P < 0.01), CD8+ cell slightly increased (P > 0.05). IgG, IgA and IgM were also lower (P < 0.05). It indicates that the lower level of cellular immunity, the descent of the ratio of CD4+/CD8+ and the condition which suppresses the body immune system are the interior factors which make the laryngeal carcinoma happening and developing easily. With the development of tumor, the increase of various suppressor factors and the immune system suppressed further the tumor can spread and shift much more easily.
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Affiliation(s)
- Y Li
- Department of Otolaryngology, Shandong Provincial Hospital, Jinan
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Gu F, Sullivan TS, Che Z, Ganesa C, Flurkey WH, Bozarth RF, Smith TJ. The characterization and crystallization of a virally encoded Ustilago maydis KP4 toxin. J Mol Biol 1994; 243:792-5. [PMID: 7966296 DOI: 10.1016/0022-2836(94)90048-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
KP4 is a virally encoded and highly specific toxin that kills fungi closely related to the fungus Ustilago maydis. The toxin was purified and crystals were formed using ammonium sulfate as precipitant. The crystals belong to the space group P6(1)(5)22 and diffracted to approximately 2.2 A resolution. Circular dicroism spectroscopy suggests that the protein is predominantly comprised of beta-strands.
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Affiliation(s)
- F Gu
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907
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