244 results on '"Tianyou Chen"'
Search Results
102. Synthesis of Monodisperse ZIF-67@CuSe@PVP Nanoparticles for pH-Responsive Drug Release and Photothermal Therapy
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Jiarui Wu, Zhanjie Zhang, Chenxu Qiao, Changfeng Yi, Zushun Xu, Tianyou Chen, and Xiaofang Dai
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Biomaterials ,Drug Liberation ,Mice ,Photothermal Therapy ,Spectroscopy, Fourier Transform Infrared ,Biomedical Engineering ,Zeolites ,Animals ,Nanoparticles ,Tissue Distribution ,Hydrogen-Ion Concentration - Abstract
In recent years, the combination treatment of chemotherapy and photothermal therapy (PTT) has emerged as an efficient approach to improve anticancer activity. Here, we combine zeolitic imidazolate framework-67 (ZIF-67) and CuSe to build a multifunctional therapeutic platform (ZIF-67@CuSe@PVP) with an efficient chemo-photothermal therapy for cancer treatment. ZIF-67@CuSe@PVP nanoparticles were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-vis, Fourier transform infrared (FT-IR), and nitrogen adsorption-desorption isotherms. These nanoparticles exhibited excellent pH-responsive doxorubicin hydrochloride (DOX) releases due to the decomposition of ZIF-67 and excellent photothermal conversion efficiency (36%) without apparent deterioration during three cycles.
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- 2021
103. Lenvatinib and Cu
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Qi, Xu, Qiuting, Li, Zhe, Yang, Piao, Huang, Han, Hu, Zhimin, Mo, Zizhen, Qin, Zushun, Xu, Tianyou, Chen, and Shengli, Yang
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Male ,Mice, Inbred BALB C ,Carcinoma, Hepatocellular ,Cell Survival ,Photothermal Therapy ,Phenylurea Compounds ,Liver Neoplasms ,Mice, Nude ,Antineoplastic Agents ,Biocompatible Materials ,Capsules ,Sulfides ,Mice ,Liver Neoplasms, Experimental ,Polylactic Acid-Polyglycolic Acid Copolymer ,Materials Testing ,Quinolines ,Tumor Cells, Cultured ,Animals ,Humans ,Drug Screening Assays, Antitumor ,Particle Size ,Copper ,Cell Proliferation - Abstract
Lenvatinib (LT) is gradually replacing sorafenib as an alternative targeted drug against advanced hepatocellular carcinoma (HCC). However, the anticancer effects of LT are still limited because of its low cytotoxicity, multidrug resistance (MDR), and tumor relapse. Herein, we constructed a smart biophotonic nanoplatform to overcome the barriers preventing high performance. LT and copper sulfide nanocrystals (Cu
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- 2021
104. A novel dealloying strategy for fabricating nanoporous Ag via ζ'-AgGa alloy
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Zhongming Jiang, Jiamin Zhang, Kaizhao Wang, Tianyou Chen, Jiuwei Zhao, Kaijun Wang, and Jin Hu
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Mechanics of Materials ,Mechanical Engineering ,General Materials Science ,Bioengineering ,General Chemistry ,Electrical and Electronic Engineering - Abstract
A mild strategy for fabricating nanoporous silver (np-Ag) pieces was reported via preparation of Ag–Ga alloys in relatively low temperature and subsequent electrochemical dealloying in nitric acid (HNO3) aqueous solution. After selectively etching Ga out of the Ag–Ga alloy, a typical three-dimensional (3D) bicontinuous nanoporous structure with a pore size of ∼67.21–159.33 nm was observed. A series of studies have shown that the addition of sodium dodecyl sulfate (SDS) results in minimum pore size. The coarsen exponent (n) is 1.61, and the activation energy was calculated to be 27.04 kJ mol−1. The ζ′-AgGa alloy prepared at low temperature can be used as the precursor for the preparation of fine np-Ags, and this method provides a new strategy for the industrial production of dealloyed np-Ag.
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- 2021
105. Development and Validation of a Nomogram for Predicting Albumin Transfusion After Spinal Tuberculosis Surgery: Based on Propensity Score Matching Analysis
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Yuanlin Yao, Jiarui Chen, Chong Liu, Hao Li, Hao Guo, Zhen Ye, Binguang Fan, Wuhua Chen, Ming Yi, Tianyou Chen, Tuo Liang, Shaofeng Wu, Xuhua Sun, Liyi Chen, Shian Liao, Jie Jiang, Shengsheng Huang, Chaojie Yu, and Xinli Zhan
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Adult ,Male ,medicine.medical_specialty ,Tuberculosis ,Adolescent ,Kyphosis ,Serum Albumin, Human ,Young Adult ,Predictive Value of Tests ,Risk Factors ,medicine ,Humans ,Child ,Propensity Score ,Aged ,Aged, 80 and over ,Surgical approach ,business.industry ,Area under the curve ,Albumin ,Reproducibility of Results ,Perioperative ,Nomogram ,Middle Aged ,medicine.disease ,Surgery ,Nomograms ,Child, Preschool ,Propensity score matching ,Female ,Neurology (clinical) ,Tuberculosis, Spinal ,business ,Erythrocyte Transfusion - Abstract
Background There have been few literature reports on the use of perioperative parameters to predict the risk of albumin transfusion after spinal tuberculosis surgery based on the application of nomogram and propensity score matching (PSM) analysis. Objective The purpose was to predict the risk of albumin transfusion after spinal tuberculosis surgery based on a combination of PSM and nomogram. Methods The clinical data of the patients were collected in our hospital, including preoperative clinical data, preoperative laboratory tests, and postoperative clinical data. All data were divided into 2 groups, including the albumin transfusion group and the non–albumin transfusion group. The PSM analysis was used to adjust the baseline data of the 2 groups. The nomogram was further constructed. The practicability and predictive ability of the model were evaluated. Results A total of 494 cases were collected in this article; 102 pairs by PSM analysis were used to construct the nomogram. There were statistical differences in surgical approach, aspartate aminotransferase/alanine aminotransferase levels, drainage, and kyphosis by logistic analysis, and these parameters were included in the construction of the nomogram. The C-index of the prediction model was 0.734. The area under the curve was 0.73 and the net benefit was between 0.13 and 0.99. The calculated C-index was 0.71 by the internal verification method. Conclusions The PSM analysis had a good matching effect and the nomogram had a good predictive ability. Surgical approach, aspartate aminotransferase/alanine aminotransferase levels, drainage, and kyphosis might be predictors of albumin transfusion after spinal tuberculosis surgery.
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- 2021
106. Blood transfusion risk prediction in spinal tuberculosis surgery: development and assessment of a novel predictive nomogram
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Liyi Chen, Zhaoping Gan, Shengsheng Huang, Tuo Liang, Xuhua Sun, Ming Yi, Shaofeng Wu, Binguang Fan, Jiarui Chen, Tianyou Chen, Zhen Ye, Wuhua Chen, Hao Li, Jie Jiang, Hao Guo, Yuanlin Yao, Shian Liao, Chaojie Yu, Chong Liu, and Xinli Zhan
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Nomograms ,Rheumatology ,Risk Factors ,Humans ,Reproducibility of Results ,Orthopedics and Sports Medicine ,Blood Transfusion ,Tuberculosis, Spinal - Abstract
Objective The present study attempted to predict blood transfusion risk in spinal tuberculosis surgery by using a novel predictive nomogram. Methods The study was conducted on the clinical data of 495 patients (167 patients in the transfusion group and 328 patients in the non-transfusion group) who underwent spinal tuberculosis surgery in our hospital from June 2012 to June 2021. The least absolute shrinkage and selection operator (LASSO) and multivariable logistic regression analyses were used to screen out statistically significant parameters, which were included to establish a novel predictive nomogram model. The receiver operating characteristic (ROC) curve, calibration curves, C-index, and decision curve analysis (DCA) were used to evaluate the model. Finally, the nomogram was further assessed through internal validation. Results The C-index of the nomogram was 0.787 (95% confidence interval: 74.6%–.82.8%). The C-value calculated by internal validation was 0.763. The area under the curve (AUC) of the predictive nomogram was 0.785, and the DCA was 0.01–0.79. Conclusion A nomogram with high accuracy, clinical validity, and reliability was established to predict blood transfusion risk in spinal tuberculosis surgery. Surgeons must prepare preoperative surgical strategies and ensure adequate availability of blood before surgery.
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- 2021
107. Core-shell GaSn@rGO nanoparticles as high-performance cathodes for room-temperature liquid metal batteries
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Kaizhao Wang, Jin Hu, Tianyou Chen, Kaijun Wang, Jun Wu, Weijun Zhang, and Zhongshan Deng
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Mechanics of Materials ,Mechanical Engineering ,Metals and Alloys ,General Materials Science ,Condensed Matter Physics - Published
- 2022
108. HMGCS2 in metabolic pathways was associated with overall survival in hepatocellular carcinoma: A LASSO-derived study
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Rongrong Ding, Yuan Zhang, Liping Zhuang, Tianyou Chen, Zongguo Yang, and Xiaorong Chen
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0301 basic medicine ,Hydroxymethylglutaryl-CoA Synthase ,Multidisciplinary ,Carcinoma, Hepatocellular ,Gene Expression Profiling ,Liver Neoplasms ,Biology ,medicine.disease ,digestive system diseases ,03 medical and health sciences ,Metabolic pathway ,030104 developmental biology ,0302 clinical medicine ,Lasso (statistics) ,Ketone body metabolism ,030220 oncology & carcinogenesis ,Hepatocellular carcinoma ,Cancer genome ,Cancer research ,Overall survival ,medicine ,Biomarkers, Tumor ,Leukocytes, Mononuclear ,Humans ,Metabolic Networks and Pathways - Abstract
This integrated bioinformatic study aimed to investigate potential prognostic candidates in hepatocellular carcinoma (HCC). In the GSE14520, GSE101685, and The Cancer Genome Atlas (TCGA) datasets, differentially expressed genes (DEGs) were identified and functional pathways of common DEGs were enriched. The least absolute shrinkage and selection operator (LASSO) model was used to screen the potential parameters associated with overall survival (OS) in HCC patients. Metabolic pathways were the most significantly enriched functional pathways of common DEGs in these three datasets. After LASSO model analysis, HMGCS2, UGP2, BCLC staging and TNM staging were screened as potential prognostic candidates for OS in HCC patients in GSE14520. HMGCS2 in the metabolic pathway was significantly downregulated in tumor tissues and peripheral blood mononuclear cells in HCC patients (all p 5 cm, multinodular, advanced tumor staging including BCLC, TNM and CLIP (all p
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- 2021
109. Quantitative evaluation of hepatic fibrosis by fibro Scan and Gd-EOB-DTPA-enhanced T1 mapping magnetic resonance imaging in chronic hepatitis B
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Yuxin Shi, Wen Ye, Li Qingtao, Yuan Min, Tianyou Chen, and Nannan Shi
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Gadolinium DTPA ,Liver Cirrhosis ,medicine.medical_specialty ,Urology ,Liver fibrosis ,Gd-EOB-DTPA ,Contrast Media ,Hepatitis B, Chronic ,Chronic hepatitis ,Internal medicine ,Medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,In patient ,Stage (cooking) ,Radiological and Ultrasound Technology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Magnetic resonance imaging ,Hepatology ,Magnetic Resonance Imaging ,Liver ,business ,Hepatic fibrosis ,Nuclear medicine - Abstract
Studies have found that both FibroScan (FS) and Gd-EOB-DTPA-enhanced T1 mapping magnetic resonance imaging (Gd-MRI) could assess liver fibrosis (LF) with high effectiveness. The aim of this study is to compare their accuracy in the quantitative evaluation of LF in patients with chronic hepatitis B (CHB), and to explore the diagnostic accuracy of their combination. 160 patients with CHB were included in this study. FS and Gd-MRI were performed within 3 months before the pathological LF staging, which was classified according to the Scheuer-Ludwig scale. The liver stiffness measurement (LSM) was obtained by FS. T1 mapping images of the liver before and 20 min after enhancement were obtained by Look-Locker Gd-MRI. There were 45, 35, 31 and 49 patients with stage S1, S2, S3 and S4 LF, respectively. LSM increased and the reduction rate of T1 relaxation time of 20 min (rrT120min%) decreased with the severity of LF. The area under curve (AUC) of LSM, rrT120min% and LSM + rrT120min% for the diagnosis of ≥ S2 LF were 0.892, 0.811 and 0.900, respectively. The AUC for ≥ S3 LF was 0.883, 0.838 and 0.899, respectively. The AUC for S4 LF was 0.882, 0.894 and 0.928, respectively. The diagnostic accuracy of FS is better than that of Gd-MRI in the evaluation of ≥ S2 stage LF. The combination of these two methods significantly improved the diagnostic efficiency in the evaluation of S4 stage LF.
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- 2021
110. Canet: Context-Aware Loss for Descriptor Learning
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Guofeng Zhang, Hui Ruan, Tianyou Chen, Hu Xiaoguang, and Xiao Jin
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Signal processing ,Computer science ,business.industry ,Image matching ,media_common.quotation_subject ,Deep learning ,Context (language use) ,Machine learning ,computer.software_genre ,Triplet loss ,Margin (machine learning) ,Feature (computer vision) ,Artificial intelligence ,business ,Function (engineering) ,computer ,media_common - Abstract
Research on designing local feature descriptors has gradually shifted to deep learning. Different from other computer vision tasks, the biggest challenge for local descriptor learning lies with the formulation of loss functions. Existing methods solve the problem by leveraging Siamese loss or triplet loss and improve the performance of the learned descriptors by a significant margin. However, the widely used Siamese loss and triplet loss cannot fully utilize the context information. In this paper, we propose a novel loss function to introduce more context information to facilitate training. After incorporating the proposed loss function into training, our learned descriptor demonstrates state-of-the-art performance in patch verification, image matching and patch retrieval benchmarks. The pretrained model will be publicly available at https://github.com/clelouch/CANet.
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- 2021
111. STAT1 and CXCL10 involve in M1 macrophage polarization that may affect osteolysis and bone remodeling in extrapulmonary tuberculosis
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Yunfeng Nie, Jiarui Chen, Chong Liu, Hao Li, Zhaojie Qin, Zide Zhang, Tuo Liang, Haopeng Zeng, Jiang Xue, Zhen Ye, Tianyou Chen, Guoyong Xu, Xinli Zhan, and Jie Jiang
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Adult ,Male ,Osteolysis ,medicine.medical_treatment ,Cell ,Macrophage polarization ,Biology ,Targeted therapy ,Flow cytometry ,Pathogenesis ,Immune system ,Genetics ,medicine ,CXCL10 ,Humans ,Tuberculosis ,Protein Interaction Maps ,Aged ,medicine.diagnostic_test ,Macrophages ,General Medicine ,Middle Aged ,medicine.disease ,Up-Regulation ,Chemokine CXCL10 ,medicine.anatomical_structure ,STAT1 Transcription Factor ,Multigene Family ,Immunology ,Female ,Bone Remodeling ,Biomarkers - Abstract
Objective This study was aimed to reveal the molecular mechanism of bone destruction due to macrophage polarization leading to during extrapulmonary tuberculosis (EPTB) infection. Methods The dataset GSE83456 was downloaded from the GEO database, and the xCell tool was used to obtain the 64 types of immune cells. The flow cytometry was performed to identified the differences between M1 and M2 macrophages between EPTB and the healthy controls (HCs). The enrichment analyses were performed on the differentially expressed genes (DEGs) and their functionally related modules. The hub genes were screened out, and their relationships with EPTB and the immune cell subtypes were further analyzed. Results The flow cytometric analysis validated this hypothesis of M1-macrophage polarization correlated with the pathogenesis of EPTB. Of the obtained 103 DEGs, 97 genes were upregulated, and 6 genes were downregulated. The GO and KEGG pathway analyses showed that the DEGs were particularly involved in the immune-related processes. The hub genes (STAT1 and CXCL10) might be involved in M1-macrophage polarization and correlated with the pathogenesis of EPTB. STAT1 and CXCL10 could also behave as biomarkers for EPTB. Conclusion STAT1 and CXCL10 were involved in the M1-macrophage polarization and correlated with the pathogenesis of EPTB. Besides, both of them could also behave as biomarkers for EPTB diagnosis and provide the required clues for targeted therapy in the future.
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- 2021
112. TYROBP, TLR4 and ITGAM regulated macrophages polarization and immune checkpoints expression in osteosarcoma
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Yunfeng Nie, Jiang Xue, Tianyou Chen, Tuo Liang, Hao Li, Chong Liu, Zhaojie Qin, Zhen Ye, Guoyong Xu, Zide Zhang, Xinli Zhan, Haopeng Zeng, Jiarui Chen, and Jie Jiang
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Science ,animal diseases ,Cell ,Datasets as Topic ,chemical and pharmacologic phenomena ,Bone Neoplasms ,Biology ,Risk Assessment ,Article ,Immune system ,Gene expression ,medicine ,Biomarkers, Tumor ,Humans ,KEGG ,Gene ,Diagnostics ,Adaptor Proteins, Signal Transducing ,Osteosarcoma ,Multidisciplinary ,CD11b Antigen ,Gene Expression Profiling ,Membrane Proteins ,Sarcoma ,biochemical phenomena, metabolism, and nutrition ,Macrophage Activation ,medicine.disease ,Immune Checkpoint Proteins ,Prognosis ,Drug regulation ,Gene Expression Regulation, Neoplastic ,Survival Rate ,Toll-Like Receptor 4 ,medicine.anatomical_structure ,TLR4 ,Cancer research ,Medicine ,bacteria ,Tumour immunology ,Biomarkers - Abstract
We established a relationship among the immune-related genes, tumor-infiltrating immune cells (TIICs), and immune checkpoints in patients with osteosarcoma. The gene expression data for osteosarcoma were downloaded from UCSC Xena and GEO database. Immune-related differentially expressed genes (DEGs) were detected to calculate the risk score. “Estimate” was used for immune infiltrating estimation and “xCell” was used to obtain 64 immune cell subtypes. Furthermore, the relationship among the risk scores, immune cell subtypes, and immune checkpoints was evaluated. The three immune-related genes (TYROBP, TLR4, and ITGAM) were selected to establish a risk scoring system based on their integrated prognostic relevance. The GSEA results for the Hallmark and KEGG pathways revealed that the low-risk score group exhibited the most gene sets that were related to immune-related pathways. The risk score significantly correlated with the xCell score of macrophages, M1 macrophages, and M2 macrophages, which significantly affected the prognosis of osteosarcoma. Thus, patients with low-risk scores showed better results with the immune checkpoints inhibitor therapy. A three immune-related, gene-based risk model can regulate macrophage activation and predict the treatment outcomes the survival rate in osteosarcoma.
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- 2021
113. Heli‐borne gravity gradiometry in rugged terrain
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Mark Dransfield and Tianyou Chen
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Gravity (chemistry) ,Data processing ,010504 meteorology & atmospheric sciences ,Terrain ,Survey research ,010502 geochemistry & geophysics ,Curvature ,01 natural sciences ,Gravity gradiometry ,Gradiometer ,Geophysics ,Geochemistry and Petrology ,Image resolution ,Geology ,0105 earth and related environmental sciences ,Remote sensing - Abstract
For airborne gravity gradiometry in rugged terrain, helicopters offer a significant advantage over fixed‐wing aircraft: their ability to maintain much lower ground clearances. Crucially, this provides both better signal‐to‐noise and better spatial resolution than is possible with a fixed‐wing survey in the same terrain. Comparing surveys over gentle terrain at Margaret Lake, Canada, and over rugged terrain at Mount Aso, Japan, demonstrates that there is some loss of spatial resolution in the more rugged terrain. The slightly higher altitudes forced by rugged terrain make the requirements for terrain correction easier than for gentle terrain. Transforming the curvature gradients measured by the Falcon gravity gradiometer into gravity and the complete set of tensor components is done by a Fourier method over gentle terrain and an equivalent source method for rugged terrain. The Fourier method is perfectly stable and uses iterative padding to improve the accuracy of the longer wavelengths. The equivalent source method relies on a smooth model inversion, and the source distribution must be designed to suit the survey design.
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- 2019
114. Fabrication of ZnS/Zn electrode using sulphur infiltration method for CO2 reduction into CO in organic media
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Yun-Fei Li, Yongnian Dai, Yu-Qi Hu, Xiao Wang, Feng Shi, Jian-Xiong Liu, Jin Shi, Tianyou Chen, Jian-Zheng Zhen, Bin Yang, and Ting-Gu Nong
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Electrolysis ,Materials science ,Mechanical Engineering ,Inorganic chemistry ,Metals and Alloys ,Substrate (chemistry) ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Exfoliation joint ,Cathode ,0104 chemical sciences ,law.invention ,chemistry.chemical_compound ,chemistry ,Mechanics of Materials ,law ,Propylene carbonate ,Electrode ,Materials Chemistry ,0210 nano-technology ,Layer (electronics) ,Faraday efficiency - Abstract
Developing of high efficient electrode materials for CO2 reduction is very important in CO2 conversion and recycling utilization. In this work, we have fabricated ZnS/Zn electrode using sulphur infiltration method. This method is a well-developed technology in surface treatment. ZnS/Zn electrode fabricated via sulphur infiltration method has a crucial advantage: because sulfur atomic is infiltrated into Zn substrate, a translation layer is formed and sandwiches between ZnS layer and Zn substrate. As a result, ZnS connects with Zn substrate firmly, and the exfoliation of ZnS layer from Zn substrate is avoided. The ZnS/Zn has been investigated as the cathode for CO2 electro-reduction in propylene carbonate/tetrabutylammonium perchlorate (PC/TBAP) in membrane electrolysis cell. The current density of potentiostatic electrolysis remains stable at 6.72 mA/cm2 at voltage −2.4 V and the faradaic efficiency of CO formation reaches to 92%. Comparing with Zn electrode, ZnS/Zn exhibits higher catalytic activity.
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- 2019
115. Engineering of polystyrene-supported artificial catalytic triad constructed by nanoprecipitation for efficient ester hydrolysis in water
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Zihao Wang, Jinxiang Yang, Wei Xiao, Tianyou Chen, Changfeng Yi, and Zushun Xu
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Colloid and Surface Chemistry - Published
- 2022
116. Design and engineering of heterogeneous nitroxide-mediated catalytic systems for selective oxidation: Efficiency and sustainability
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Tianyou Chen, Wei Xiao, Zihao Wang, Ting Xie, Changfeng Yi, and Zushun Xu
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Biomaterials ,Colloid and Surface Chemistry ,Polymers and Plastics ,Materials Chemistry ,Catalysis ,Electronic, Optical and Magnetic Materials - Published
- 2022
117. Identification of Hub Genes Associated With Melanoma Development by Comprehensive Bioinformatics Analysis
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Zhaojun Lu, Tuo Liang, Chong Liu, Zequn Wang, Tianyou Chen, Hao Li, Shian Liao, Jie Jiang, Xinli Zhan, Guoyong Xu, Chaojie Yu, Zide Zhang, and Jiarui Chen
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differential expression gene analysis ,Cancer Research ,genetic structures ,weighted gene co-expression network analysis ,Melanoma ,predict prognosis ,Biology ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,lcsh:RC254-282 ,Oncology ,immunohistochemistry ,Gene expression ,melanoma ,medicine ,Cancer research ,FOXM1 ,biomarker ,Biomarker (medicine) ,Immunohistochemistry ,KEGG ,Gene ,Survival analysis ,Original Research - Abstract
IntroductionThis study aimed to identify important genes associated with melanoma to further develop new target gene therapies and analyze their significance concerning prognosis.Materials and methodsGene expression data for melanoma and normal tissue were downloaded from three databases. Differentially co-expressed genes were identified by WGCNA and DEGs analysis. These genes were subjected to GO, and KEGG enrichment analysis and construction of the PPI visualized with Cytoscape and screened for the top 10 Hub genes using CytoHubba. We validated the Hub gene’s protein levels with an immunohistochemical assay to confirm the accuracy of our analysis.ResultsA total of 435 differentially co-expressed genes were obtained. Survival curves showed that high expression of FOXM1,\ EXO1, KIF20A, TPX2, and CDC20 in melanoma patients with 5 of the top 10 hub genes was associated with reduced overall survival (OS). Immunohistochemistry showed that all five genes were expressed at higher protein levels in melanoma than in paracancerous tissues.ConclusionFOXM1, EXO1, KIF20A, TPX2, and CDC20 are prognosis-associated core genes of melanoma, and their high expression correlates with the low prognosis of melanoma patients and can be used as biomarkers for melanoma diagnosis, treatment, and prognosis prediction.
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- 2021
118. TRIM68, PIKFYVE, and DYNLL2: The Possible Novel Autophagy- and Immunity-Associated Gene Biomarkers for Osteosarcoma Prognosis
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Dachang Liu, Shian Liao, Chong Liu, Hao Li, Jie Jiang, Ming Yi, Tianyou Chen, Jiarui Chen, Guoyong Xu, Zide Zhang, Yuanlin Yao, Zequn Wang, Xuhua Sun, Shengsheng Huang, Xinli Zhan, Tuo Liang, Hao Guo, Liyi Chen, Zhaojun Lu, Wuhua Chen, and Chaojie Yu
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Oncology ,Cancer Research ,medicine.medical_specialty ,autophagy ,Disease ,prognostic biomarkers ,PIKFYVE ,Immune system ,Internal medicine ,osteosarcoma ,medicine ,Survival analysis ,RC254-282 ,Original Research ,business.industry ,Proportional hazards model ,immune infiltration ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Nomogram ,medicine.disease ,Immunohistochemistry ,Real-time polymerase chain reaction ,quantitative reverse transcription PCR ,Osteosarcoma ,business - Abstract
IntroductionOsteosarcoma is among the most common orthopedic neoplasms, and currently, there are no adequate biomarkers to predict its prognosis. Therefore, the present study was aimed to identify the prognostic biomarkers for autophagy-and immune-related osteosarcoma using bioinformatics tools for guiding the clinical diagnosis and treatment of this disease.Materials and MethodsThe gene expression and clinical information data were downloaded from the Public database. The genes associated with autophagy were extracted, followed by the development of a logistic regression model for predicting the prognosis of osteosarcoma using univariate and multivariate COX regression analysis and LASSO regression analysis. The accuracy of the constructed model was verified through the ROC curves, calibration plots, and Nomogram plots. Next, immune cell typing was performed using CIBERSORT to analyze the expression of the immune cells in each sample. For the results obtained from the analysis, we used qRT-PCR validation in two strains of human osteosarcoma cells.ResultsThe screening process identified a total of three genes that fulfilled all the screening criteria. The survival curves of the constructed prognostic model revealed that patients with the high risk presented significantly lower survival than the patients with low risk. Finally, the immune cell component analysis revealed that all three genes were significantly associated with the immune cells. The expressions of TRIM68, PIKFYVE, and DYNLL2 were higher in the osteosarcoma cells compared to the control cells. Finally, we used human pathological tissue sections to validate the expression of the genes modeled in osteosarcoma and paracancerous tissue.ConclusionThe TRIM68, PIKFYVE, and DYNLL2 genes can be used as biomarkers for predicting the prognosis of osteosarcoma.
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- 2021
119. Parameters Optimization for Compressing a Mixture of Decomposed Rice Straw and Biochar into a Seedlingraising Mat.
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Yuqiu Song, Yingjun Han, Lulu Wang, Wenyu Zhang, Tianyou Chen, Jun Meng, Mingjin Xin, Yuxin Liu, and Renbao Shan
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BIOCHAR ,RICE straw ,BENDING strength ,RICE hulls ,TIME pressure ,MIXTURES ,RICE quality - Abstract
Transplanting is the prime growing pattern for rice production, and seedling raising is an essential step of the process. However, the massive soil source and the complicated treatments needed for seedling raising are major issues. This study explored the possibility of using compresseddecomposed rice straw and biochar from rice husk into a seedling-raising mat, to replace the soil and simplify the seeding process. A quadratic rotation-orthogonal combination experiment was conducted to investigate the effect of moisture content, pressure, and residence time on the formation of seedling-raising mat. The regression models between the compressing indicators and the process factors were established. The results showed that the following factors had significant effect on bending strength of the formed mat (P < 0.01): the pressure and residence time have extreme effects on dimensional stability (P < 0.01); but the influence of moisture content was insignificant (P > 0.05). The process parameters for compression were optimized and verified using Design-Expert software 8.0.6. The optimized parameters were moisture content of 33%, pressure of 23.0 MPa, and residence time of 61 s. The prediction error is less than 6% under this condition. The results may provide a reference for biomass seedling-raising mat compression. [ABSTRACT FROM AUTHOR]
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- 2022
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120. Predicting the Failure Risk of Internal Fixation Devices in Chinese Patients Undergoing Spinal Internal Fixation Surgery: Development and Assessment of a New Predictive Nomogram
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Jiarui Chen, Tianyou Chen, Guoyong Xu, Chong Liu, Chaojie Yu, Hao Li, Zhen Ye, Zequn Wang, Tuo Liang, Zhaojun Lu, Xinli Zhan, Jie Jiang, Ma Yuan, and Zide Zhang
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Adult ,Male ,medicine.medical_specialty ,China ,Article Subject ,medicine.medical_treatment ,education ,Scoliosis ,Logistic regression ,Risk Assessment ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Fixation (surgical) ,0302 clinical medicine ,Risk Factors ,medicine ,Internal fixation ,Humans ,030212 general & internal medicine ,Treatment Failure ,Retrospective Studies ,General Immunology and Microbiology ,business.industry ,Regression analysis ,General Medicine ,Nomogram ,Middle Aged ,medicine.disease ,Confidence interval ,Internal Fixators ,Spine ,Surgery ,Prosthesis Failure ,Nomograms ,Spinal Fusion ,Medicine ,Female ,business ,Risk assessment ,030217 neurology & neurosurgery ,Research Article - Abstract
The current study is aimed at developing and validating a nomogram of the risk of failure of internal fixation devices in Chinese patients undergoing spinal internal fixation. We collected data from a total of 1139 patients admitted for spinal internal fixation surgery at the First Affiliated Hospital of Guangxi Medical University from May 2012 to February 2019. Of these, 1050 patients were included in the spinal internal fixation group and 89 patients in the spinal internal fixation device failure group. Patients were divided into training and validation tests. The risk assessment of the failure of the spinal internal fixation device used 14 characteristics. In the training test, the feature selection of the failure model of the spinal internal fixation device was optimized using the least absolute shrinkage and selection operator (LASSO) regression model. Based on the characteristics selected in the LASSO regression model, multivariate logistic regression analysis was used for constructing the model. Identification, calibration, and clinical usefulness of predictive models were assessed using C-index, calibration curve, and decision curve analysis. A validation test was used to validate the constructed model. In the training test, the risk prediction nomogram included gender, age, presence or absence of scoliosis, and unilateral or bilateral fixation. The model demonstrated moderate predictive power with a C-index of 0.722 (95% confidence interval: 0.644–0.800) and the area under the curve (AUC) of 0.722. Decision curve analysis depicted that the failure risk nomogram was clinically useful when the probability threshold for internal fixation device failure was 3%. The C-index of the validation test was 0.761. This novel nomogram of failure risk for spinal instrumentation includes gender, age, presence or absence of scoliosis, and unilateral or bilateral fixation. It can be used for evaluating the risk of instrumentation failure in patients undergoing spinal instrumentation surgery.
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- 2021
121. Firmicutes and Blautia in gut microbiota lessened in chronic liver diseases and hepatocellular carcinoma patients: a pilot study
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Rongrong Ding, Min Yuan, Zongguo Yang, Xiaorong Chen, Wensi Zhang, Bozong Tang, Chen Ye, Tianyou Chen, Jia Shi, Yunfei Lu, and Ying Lü
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medicine.medical_specialty ,Cirrhosis ,Firmicutes ,Lymphocyte ,Bioengineering ,Gut flora ,Chronic liver disease ,Applied Microbiology and Biotechnology ,Gastroenterology ,digestive system ,Liver disease ,Internal medicine ,medicine ,firmicutes ,Feces ,gut microbiota ,biology ,business.industry ,hepatocellular carcinoma ,General Medicine ,blautia ,respiratory system ,medicine.disease ,biology.organism_classification ,medicine.anatomical_structure ,Hepatocellular carcinoma ,liver disease ,business ,TP248.13-248.65 ,Research Article ,Research Paper ,Biotechnology - Abstract
The gut microbiota system plays a vital role in liver diseases. This study aimed to address the diversity of gut microbiota and its correlations with clinical parameters in healthy individuals, chronic liver disease (CLD), and hepatocellular carcinoma (HCC) patients. Fecal specimens of nine healthy individuals, 11 CLD, and 21 HCC were collected. The diversity of gut microbiota was examined by PCR and Illumina MiSeq sequencing and analyzed using 16S rRNA gene sequencing database. The correlations between gut microbiota and the clinical parameters of participants were also addressed. Compared to healthy individuals, Firmicutes at a phylum level decreased in CLD and HCC patients and Proteobacteria increased (p < 0.05). The composition of Blautia on a genus level in CLD and HCC patients significantly decreased compared to healthy controls (p < 0.05). Firmicutes composition was negatively associated with age and number of males (p < 0.05) and was positively associated with monocytes, high-density lipoprotein cholesterol (HDL-C), and estimated glomerular filtration rate (eGFR) levels (p < 0.05). At a genus level, Blautia composition was negatively associated with cirrhosis, age, and number of males (p < 0.01), while it was positively associated with red blood cells (RBCs), triglycerides, HDL-C, and lymphocyte levels (p < 0.05). Conclusively, there was a significant compositional difference in gut microbiota in CLD and HCC patients compared with healthy subjects. Firmicutes and Blautia in gut microbiota system lessened in CLD and HCC patients. Clinical biochemical parameters have an impact on the diversity of gut microbiota in liver diseases.
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- 2021
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122. Effect of chloride adlayer on the oxide-derived gallium microspheres catalysts for electroreduction of CO2 to CO
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Tianyou Chen, Jin Hu, Kaizhao Wang, Kaijun Wang, Weijun Zhang, Guoyou Gan, and Jin Shi
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General Materials Science ,General Chemistry ,Condensed Matter Physics - Published
- 2022
123. Ultraweak chemiluminescence enhanced on the surface of lanthanide metal–organic framework nanosheets synthesized by ultrasonic wave
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Jing Wu, Y. Wang, Chunxia Huang, Xuanhe Liu, Tianyou Chen, Caihou Lin, and Yufei Wang
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Lanthanide ,Chemistry ,General Physics and Astronomy ,Surfaces and Interfaces ,General Chemistry ,Advanced materials ,Condensed Matter Physics ,Photochemistry ,Surfaces, Coatings and Films ,law.invention ,Catalysis ,Improved performance ,law ,Metal-organic framework ,Ultrasonic sensor ,Chemiluminescence - Abstract
In this paper, lanthanide metal-organic frameworks (Ln-MOFs, Ln = Ce, Gd, Ho) were facilely synthesized by ultrasonic method and applied in enhancing chemiluminescence (CL) emission of NaIO4-H2O2 system. The synthesized Ln-MOFs were characterized to be nanosheet-like shapes. Comparing with the NaIO4-H2O2 system without Ln-MOFs, the CL intensities of Ln-MOFs-NaIO4-H2O2 systems were enhanced 28, 32 and 67 times by Ce-MOFs, Gd-MOFs and Ho-MOFs, respectively. Catalytic properties of Ln-MOFs accounted for the improved performance in CL and increased the generation of some reactive oxygen species (ROS) (·O2−, 1O2 and ·OH) which induced CL enhancement. The large surface area of nanosheets and structural defects generated during the ultrasonic synthesis process could facilitate the exposure of catalytic active sites and ROS generation. This work gave insights into developing novel CL systems based on advanced materials with effective surfaces.
- Published
- 2022
124. Proteomic analysis reveals critical molecular mechanisms involved in the macrophage anti-spinal tuberculosis process
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Guoyong Xu, Shian Liao, Yuanlin Yao, Xinli Zhan, Tianyou Chen, Jie Jiang, Chong Liu, Hao Li, Jiang Xue, and Tuo Liang
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0301 basic medicine ,Microbiology (medical) ,Proteomics ,Chemokine ,Radioimmunoprecipitation Assay ,Tuberculosis ,030106 microbiology ,Immunology ,Ion transmembrane transport ,Microbiology ,Thoracic Vertebrae ,Mycobacterium tuberculosis ,03 medical and health sciences ,Chondrocytes ,medicine ,CXCL10 ,Humans ,CYBB ,Intervertebral Disc ,Retrospective Studies ,Immunity, Cellular ,biology ,Chemistry ,Macrophages ,Chemotaxis ,Fibroblasts ,biology.organism_classification ,medicine.disease ,Molecular biology ,030104 developmental biology ,Infectious Diseases ,biology.protein ,Cervical Vertebrae ,Tertiary granule ,Tuberculosis, Spinal - Abstract
Tuberculosis infection activates the autoimmune system. However, the role of host-pathogen interactions involved in Mycobacterium tuberculosis infection is unclear. In this study, we analyzed 6 spinal tuberculosis tissues and 6 herniated disc tissues by using liquid chromatography-tandem mass spectrometry coupled with tandem mass spectrometry, and immunohistochemical staining was performed for validating the results. We identified 42 differential immune-related proteins and 3 hub genes that are primarily localised in the tertiary granule and involved in biological processes such as cellular response to the presence of cadmium ions, regulation of ion transmembrane transport, transmembrane transport, and inflammatory responses. Genes encoding cytochrome B-245 beta chain (CYBB), matrix metallopeptidase 9 (MMP9), and C-X-C motif chemokine ligand 10 (CXCL10) were identified as the hub genes that exhibited anti-tuberculosis activity and were responsible for macrophage resistance against M. tuberculosis. In conclusion, CYBB, MMP9, and CXCL10 resist M. tuberculosis infection through chemotaxis and macrophage activation. Our results indicate that CYBB, MMP9, and CXCL10 could be considered as molecular targets for spinal tuberculosis treatment, which may significantly improve patients' quality of life and prognosis.
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- 2020
125. The effects of preoperative imaging stability studies on intraoperative correction, postoperative observation, and clinical efficacy of adult lumbar spondylolisthesis treatment
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Guoyong Xu, Zhaojun Lu, Tianyou Chen, Chong Liu, Jie Jiang, Guangping Zhang, Shian Liao, Hao Li, Xinli Zhan, Zide Zhang, Chaojie Yu, Jiarui Chen, Tuo Liang, and Zequn Wang
- Subjects
medicine.medical_specialty ,business.industry ,Medicine ,Clinical efficacy ,business ,Lumbar spondylolisthesis ,Preoperative imaging ,Surgery - Abstract
Background The aim of this study is to explore the use of preoperative imaging stability studies of adult lumbar spondylolisthesis and it's effects on intraoperative correction, postoperative observation, and clinical efficacy. Methods We retrospectively analyzed a total of 104 patients diagnosed with lumbar spondylolisthesis who underwent Posterior lumbar interbody fusion surgery between 2011 and 2014. The qualified patients were divided into two groups; group A (study/unstable group: 52 cases) and group B (control/stable group: 52 cases). Group A was further divided into group A1 (slip instability: 27 cases) and group A2 (angular instability: 25 cases). The preoperative lumbar sagittal plane translation distances and segmental angle of the preoperative lateral X-rays, hyperflexion X-rays, and hyperextension X-rays were measured and compared with their third-day postoperative lateral X-ray, and slip rate. The occurrences of intraoperative or postoperative complications, one-month postoperative follow-up data, including JOA, and VAS scores were access to evaluate the clinical efficacy of the treatment. Results Satisfactory postoperative radiographic correction was recorded in all groups. Better correction and correction was observed in group A1 patients and group B patients who used puller screws compared to those who used normal screws (P
- Published
- 2020
126. CCT6A, a Novel Prognostic Biomarker for Ewing's Sarcoma
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Jie Jiang, Chong Liu, Guoyong Xu, Tuo Liang, Chaojie Yu, Zhaojie Qin, Shian Liao, Jiang Xue, Haopeng Zeng, Zide Zhang, Zhaojun Lu, Zequn Wang, Jiarui Chen, Tianyou Chen, Hao Li, and Xinli Zhan
- Abstract
Background: Ewing's sarcoma (ES) is the second most prevalent malignancy among bone tissue tumors, and there is no adequate prognosis biomarker. The protein encoded by CCT6A is a molecular chaperone. Early studies have suggested that CCT6A is involved in the development of many cancers, however, there is no clear evidence of a role for CCT6A in ES.Methods: In this study, we performed a bioinformatics analysis of 32 Ewing sarcoma specimens from the GSE17618 dataset for differences in gene expression and overall survival, event-free survival, and gene expression in different subgroups. Results: After three screenings, we identified CCT6A as highly correlated with Ewing's sarcoma prognosis. Survival analysis showed low overall survival (OS) for CCT6A high expression (P=0.024). On the other hand, Cox regression analysis showed that CCT6A expression, event-free survival (EFS), and age were strongly associated with the prognosis of Ewing sarcoma, identified as independent poor prognostic biomarkers. (CCT6A: P=0.015; Age: P-value=0.026; EFS: P-value=0.001). Conclusion: The expression level of CCT6A is strongly associated with the prognosis of Ewing's sarcoma. High expression of the CCT6A gene may serve as a biomarker for poor prognosis in patients with Ewing's sarcoma.
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- 2020
127. The prediction of survival and analysis of microenvironment in patients with sarcoma
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Jiarui Chen, Chong Liu, Tuo Liang, Zide Zhang, Zhaojun Lu, Shian Liao, Jie Jiang, Guoyong Xu, Hao Li, Tianyou Chen, Zhaojie Qin, Huijiang Liu, Jiemei Cen, and Xinli Zhan
- Abstract
The authors have requested that this preprint be removed from Research Square.
- Published
- 2020
128. Ultra-Weak Chemiluminescence Enhanced by Cerium-Doped LaF
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Chunxia Huang, Yufei Wang, Tianyou Chen, Jing Wu, and Y. Wang
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chemistry.chemical_element ,Nanoparticle ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,law.invention ,lcsh:Chemistry ,chemistry.chemical_compound ,law ,Nitrite ,nitrite ,Analysis method ,Original Research ,Chemiluminescence ,fluoride ,Chemistry ,Doping ,General Chemistry ,021001 nanoscience & nanotechnology ,chemiluminescence ,0104 chemical sciences ,Cerium ,cerium ,Linear relationship ,lcsh:QD1-999 ,nanoparticles ,0210 nano-technology ,Fluoride ,Nuclear chemistry - Abstract
In this work, cerium-doped LaF3 nanoparticles (LaF3:Ce NPs) were successfully synthesized and characterized. Its chemiluminescence (CL) property was studied, and it was amazingly found that it intensely enhanced the ultra-weak CL of the NaNO2-H2O2 system. The CL mechanism was systematically investigated and suggested to be the recombination of electron-injected and hole-injected LaF3:Ce NPs. The new CL system was developed to be a facile, original, and direct method for nitrite analysis. Experimental conditions were optimized and then a satisfactory linear relationship between CL intensity and nitrite concentration was obtained. This work introduced a new pathway for the research and application of traditional fluoride NPs doped with RE3+.
- Published
- 2020
129. Optimization of Cold Pressing Process Parameters of Chopped Corn Straws for Fuel
- Author
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Sun Xumin, Honglei Jia, Zhang Shengwei, Hongfang Yuan, Yuqiu Song, and Tianyou Chen
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Control and Optimization ,Materials science ,020209 energy ,dimensional stability coefficient ,Energy Engineering and Power Technology ,02 engineering and technology ,010501 environmental sciences ,Raw material ,relaxation density ,01 natural sciences ,lcsh:Technology ,Animal science ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Water content ,chopped corn straws ,specific energy consumption ,optimization ,fuel ,0105 earth and related environmental sciences ,Pressing ,Renewable Energy, Sustainability and the Environment ,lcsh:T ,Energy consumption ,Straw ,Compression (physics) ,Relaxation (physics) ,Heat of combustion ,Energy (miscellaneous) - Abstract
Pressed condensation is a key process before the reclamation of loose corn straws. In this study, the effects of stabilization time on the relaxation density and dimensional stability of corn straws were studied firstly, and then the stabilization time was determined to be 60 s by comprehensively considering the compression effect, energy consumption, efficiency and significance. On this basis, the effects of the water content (12%, 15%, 18%), ratio of pressure maintenance time to stabilization time (0, 0.5, 1), maximum compression stress (60.4, 120.8, 181.2 kPa) and feeding mass (2.5, 3, 3.5 kg) on the relaxation density, dimensional stability coefficient, and specific energy consumption of post-compression straw blocks were investigated by the Box–Behnken design. It was found that the water content, ratio of pressure maintenance time to stabilization time, maximum compression stress, and feeding mass all very significantly affected the relaxation density, dimensional stability coefficient and specific energy consumption. The interaction between water content and maximum compression stress significantly affected both relaxation density and specific energy consumption. The interaction between the ratio of pressure maintenance time to stabilization time and feeding mass significantly affected the dimensional stability coefficient. The factors and the indices were regressed by quadratic equations, with the coefficients of determination larger than 0.97 in all equations. The optimized process parameters were water content of 13.63%, pressure maintenance time of 22.8 s, strain maintenance time of 37.2 s, maximum compression stress of 109.58 kPa, and raw material feeding mass of 3.5 kg. Under these conditions, the relaxation density of cold-pressed straw blocks was 145.63 kg/m3, the dimensional stability coefficient was 86.89%, and specific energy consumption was 245.78 J/kg. The errors between test results and predicted results were less than 2%. The low calorific value of cold-pressed chopped corn straw blocks was 12.8 MJ/kg. Through the situational analysis method based on the internal and external competition environments and competition conditions (SWOT analysis method), the cold-pressed chopped corn straw blocks consumed the lowest forming energy consumption than other forming methods and, thus, are feasible for heating by farmers. Our findings may provide a reference for corn straw bundling, cold-press forming processes and straw bale re-compressing.
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- 2020
130. Research on Surge Control of Centrifugal Compressor Based on Reinforcement Learning
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Tianyou Chen, Kun Jiang, Yang Xiang, and Chaojun Jiang
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Variable (computer science) ,Computer science ,media_common.quotation_subject ,Centrifugal compressor ,Reinforcement learning ,PID controller ,Control engineering ,Surge ,Gas compressor ,Surge control ,Adaptability ,media_common - Abstract
Surge control is always an important issue in compressor health management. Although the traditional PID anti-surge methods has made some achievements, the adaptation across variable working conditions is still a challenge. Meantime, reinforcement learning (RL) has been proven strong adaptability and high accuracy in recent years, however, few researches attempt RL in surge control applications. Therefore, this paper proposes a RL anti-surge method for compressor. In specific, a novel architecture based on Actor-Critic algorithm is presented, and the relative structures are re-designed aiming at the issue. Moreover, the simulation of supercharging system is conducted to validate the proposed method, in which the compressor operation models are static and dynamic, respectively. The results show that the agent of Actor-Critic can sense the state of the compressor in real time and then output the appropriate anti-surge valve opening which not only avoids the surge, but also ensures the working efficiency at a high level. Comparing with the traditional PID anti-surge method, the superiority of the proposed method such as the strong adaptability across variable working conditions is verified.
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- 2020
131. Broadband Gravity – Combining Vertical Gravity Data from Airborne Gravity and Airborne Gravity Gradient Systems
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Tianyou Chen, D. Burrows, and C. Van Galder
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Wavelength ,Gravity (chemistry) ,Noise estimation ,Broadband ,Bandwidth (signal processing) ,Common method ,Gravity gradient ,Geology ,Gradiometer ,Remote sensing - Abstract
Summary Gravity data is a powerful tool for oil and gas exploration. Airborne gravity (AG) and airborne gravity gradiometer (AGG) systems each excel at measuring gravity, but at different ends of the typical exploration bandwidth. In order to realize the full benefit of each system type through their combination, a common method of noise estimation is required. This common methodology allows for selection of the ideal cut-off wavelength for a matched pair of high-pass and low-pass filters. We demonstrate the method using an example survey dataset where both AG and AGG data were collected simultaneously.
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- 2020
132. Ferroptosis-related gene SOCS1, a marker for tuberculosis diagnosis and treatment, involves in macrophage polarization and facilitates bone destruction in tuberculosis
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Tuo Liang, Yunfeng Nie, Jie Jiang, Zhen Ye, Chong Liu, Zide Zhang, Hao Li, Guoyong Xu, Xinli Zhan, Jiarui Chen, Haopeng Zeng, Zhaojie Qin, Jiang Xue, and Tianyou Chen
- Subjects
Microbiology (medical) ,Tuberculosis ,Immunology ,Macrophage polarization ,Drug resistance ,Microbiology ,Statistics, Nonparametric ,Pathogenesis ,Suppressor of Cytokine Signaling 1 Protein ,Immune system ,Tuberculosis diagnosis ,Ferroptosis ,Humans ,Medicine ,Analysis of Variance ,business.industry ,Suppressor of cytokine signaling 1 ,Macrophage Activation ,medicine.disease ,Infectious Diseases ,ROC Curve ,Area Under Curve ,business ,Biomarkers - Abstract
This study was aimed to reveal the role of ferroptosis in tuberculosis infection. To elucidate the ferroptosis-related DEGs, GEO datasets associated with tuberculosis infection were downloaded. The two external validation GEO datasets were exploited for subsequent verification of the ferroptosis-related DEGs. We further evaluated the correlation among the ferroptosis-related DEGs, therapeutic effects, and drug resistance. Finally, we tried to reveal the engagement of the ferroptosis-related DEGs in bone destruction during TB infection. The present study identified SOCS1 as the only ferroptosis-related DEGs. Compared to the non-TB patients, up-regulation of SOCS1 was evident in the TB patients. After receiving standard anti-TB treatment, significant down-regulation of SOCS1 confirmed its acceptance as the marker for therapeutic efficacy. The involvement of SOCS1 has also been suggested in the regulation of the micro immune environment in TB. Furthermore, SOCS1 might play an important role in causing bone destruction during TB infection. FRGs-SOCS1 may be the key gene involved in the pathogenesis and progression of TB infection.
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- 2022
133. Fabrication of Ag2S electrode for CO2 reduction in organic media
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Yun-Fei Li, Feng Shi, Feng-xia Shen, Bin Yang, Qing-yuan Li, Tao Qu, Jin Shi, Yongnian Dai, and Tianyou Chen
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Electrolysis ,Aqueous solution ,Materials science ,Scanning electron microscope ,General Chemical Engineering ,General Engineering ,General Physics and Astronomy ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,Cathode ,0104 chemical sciences ,law.invention ,Cathodic protection ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,law ,Propylene carbonate ,Electrode ,General Materials Science ,0210 nano-technology - Abstract
Electro-reduction of carbon dioxide (CO2) to carbon monoxide (CO) has been extensively studied on metal and alloy electrodes for many decades. However, owing to their disadvantages of low current density and high over-potential, the practical application of these electrodes has been limited. Hence, it is highly desirable to explore new and high efficient electrode for CO2 reduction to CO. Ag2S has been widely studied as electrode material in electrochemistry due to its unique properties, such as high conductivity, chemical stability, and easy to be prepared. In this work, we have fabricated an Ag2S electrode via electro-oxidation of Ag in aqueous solution. X-ray diffraction (XRD) and scanning electron microscope (SEM) confirm that Ag2S has been modified on Ag foil, which made the electrode surface roughness. And then, we have evaluated the performance of Ag2S electrode as the cathode for CO2 reduction in propylene carbonate/tetrabutylammonium perchlorate. The cathodic current density reaches to 9.85 mA/cm2, with the faradic efficiency for CO formation remaining stable at 92% during 4 h long-term electrolysis.
- Published
- 2018
134. Measuring gravity gradient in rugged terrain: HeliFalcon survey in Aso-Oguni, Japan
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Mark Dransfield and Tianyou Chen
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Regional geology ,Geophysics ,Hydrogeology ,Terrain ,Gemology ,Economic geology ,Gravity gradiometry ,Image resolution ,Geothermal gradient ,Geology ,Remote sensing - Abstract
Since the first Falcon AGG survey in 1999 (van Leuwen et al., 2000), fixed-wing airborne gravity gradiometry (AGG) has proved to be a valuable tool for mining and oil and gas explora¬tion (Dransfield, 2007). The more compact digital Falcon AGG allowed the system to be installed in a helicopter and helicopter AGG surveys began in 2006 (Boggs et al., 2007). Compared with fixed-wing aircraft, the helicopter platform can fly surveys low and slow, offering superior spatial resolution as well as an improved signal-to-noise ratio (Dransfield, 2007). The superior spatial resolution and improved signal-to-noise ratio provided by helicopter AGG enhances its capability to detect smaller targets and better delineate subtler features. Dransfield and Christensen (2013) reported a HeliFalcon performance of 6 Eo RMS at 45 m resolution in vertical gravity gradient, by far the finest spatial resolution of any airborne AGG system. Another advantage afforded by helicopter AGG is its capa¬bility to follow terrains more closely especially in areas of high relief. Christensen and Hodges (2013) compared the vertical grav¬ity gradient from HeliFalcon with the simulated fixed-wing result over the Iron Range survey in the Canadian Rocky Mountains where the terrain variation reaches 1900 m. They showed that in this terrain, a fixed-wing survey would have to fly at ground clearances of more than 1000 m for much of the survey area. This high ground clearance would have greatly suppressed the signal at short wavelengths and degraded the spatial resolution. In this paper, we look at the HeliFalcon AGG survey conducted in the Aso-Oguni area exploring for geothermal fields, examin the technical challenges presented by the rugged terrains, describe some aspects of the data acquisition and processing, and present the survey results.
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- 2018
135. Immobilization of Small‐Molecule Ligands Containing Secondary or Tertiary Amine Groups onto TiO 2 ‐Supported Ru Catalysts Driven by the Hydrophobic Effect
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Zushun Xu and Tianyou Chen
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Tertiary amine ,010405 organic chemistry ,chemistry.chemical_element ,General Chemistry ,010402 general chemistry ,01 natural sciences ,Small molecule ,0104 chemical sciences ,Ruthenium ,Catalysis ,Hydrophobic effect ,chemistry ,Alcohol oxidation ,Polymer chemistry ,Amine gas treating - Published
- 2018
136. Selection of Low-Cost Ionic Liquid Electrocatalyst for CO2 Reduction in Propylene Carbonate/Tetrabutylammonium Perchlorate
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Jin Shi, Tianyou Chen, Jia Youjian, Yongnian Dai, Yun-Fei Li, Feng Shi, Feng-xia Shen, Jian-Zheng Zhen, Yu-Qi Hu, and Bin Yang
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Materials science ,Tetrabutylammonium perchlorate ,Inorganic chemistry ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrocatalyst ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Reduction (complexity) ,chemistry.chemical_compound ,chemistry ,Propylene carbonate ,Ionic liquid ,Electrochemistry ,0210 nano-technology ,Selection (genetic algorithm) - Published
- 2018
137. Electrochemical reduction of CO2 to CO over Zn in propylene carbonate/tetrabutylammonium perchlorate
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Qing-yuan Li, Feng Shi, Jin Shi, Bin Yang, Tianyou Chen, Yongnian Dai, Tao Qu, Yun-Fei Li, Feng-xia Shen, and Jian-Zheng Zhen
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Aqueous solution ,Renewable Energy, Sustainability and the Environment ,Supporting electrolyte ,Inorganic chemistry ,Energy Engineering and Power Technology ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,0104 chemical sciences ,Catalysis ,chemistry.chemical_compound ,chemistry ,Carbon dioxide ,Propylene carbonate ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,0210 nano-technology ,Faraday efficiency ,Carbon monoxide - Abstract
Developing low cost and high efficient electrode for carbon dioxide (CO2) reduction in organic media is essential for practical application. Zn is a cheap metal and has high catalytic effects on CO2 reduction to carbon monoxide (CO) in aqueous solution. However, little attention has been given to investigate the performance of Zn in organic media for CO2 reduction. In present work, we have conducted CO2 reduction in propylene carbonate/tetrabutylammonium perchlorate on Zn due to that propylene carbonate is a widely used industrial absorber, and tetrabutylammonium perchlorate is a commonly used organic supporting electrolyte. In addition, because electrochemical reduction of CO2 to CO naturally produces H2O, we have discussed water effects on CO2 reduction in propylene carbonate/tetrabutylammonium perchlorate+6.8 wt % H2O. Our experiment results reveal that the faradaic efficiency for CO formation reaches to 83%, and the current density remains stable at 6.72 mA/cm2 at voltage −2.3 V for 4 h. Interestingly, Zn presents higher catalytic activity than Ag, and slightly lower than Au. X-ray photoelectron spectroscopy results confirm that no poisonous species is formed and absorbed on the cathode, which is an important advantage in practical application.
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- 2018
138. Non-Membrane Electrolysis Cell for CO2Reduction to CO in Propylene Carbonate/Tetrabutylammonium Perchlorate
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Feng Shi, Yun-Fei Li, Ning Song, Yongnian Dai, Yudong Wang, Feng-xia Shen, Jian-xiong Liu, Jin Shi, Bin Yang, and Tianyou Chen
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Tetrabutylammonium perchlorate ,Renewable Energy, Sustainability and the Environment ,Electrolytic cell ,Inorganic chemistry ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,chemistry.chemical_compound ,Membrane ,chemistry ,Propylene carbonate ,Materials Chemistry ,Electrochemistry ,0210 nano-technology - Published
- 2018
139. Flexible Low‐Melting Point Radiation Shielding Materials: Soft Elastomers with GaInSnPbBi High‐Entropy Alloy Inclusions
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Yongjin Feng, Jin Hu, Kaijun Wang, Tianyou Chen, Wei Jun Zhang, Kaizhao Wang, Ziqiang Zhao, and Hongtao Fan
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Radiation shielding ,Materials science ,Polymers and Plastics ,General Chemical Engineering ,Alloy ,Organic Chemistry ,engineering ,Polymer composites ,Materials Chemistry ,Low melting point ,engineering.material ,Composite material ,Elastomer - Published
- 2021
140. Chemiluminescence enhanced by cerium-doped LaF3 nanoparticles through electron-hole annihilation
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Tianyou Chen, Yufei Wang, Y. Wang, Jing Wu, and Chunxia Huang
- Subjects
Annihilation ,Materials science ,Doping ,Biophysics ,chemistry.chemical_element ,Nanoparticle ,General Chemistry ,Electron hole ,Condensed Matter Physics ,Photochemistry ,Biochemistry ,Atomic and Molecular Physics, and Optics ,Nanomaterials ,law.invention ,Cerium ,chemistry ,law ,Luminescence ,Chemiluminescence - Abstract
In this paper, cerium-doped LaF3 nanoparticles (LaF3:Ce NPs) were synthesized and applied in enhancing chemiluminescence (CL) process of NaIO4–H2O2 system. The CL intensity was enhanced 42 times compared to that of NaIO4–H2O2 system without LaF3:Ce NPs. The CL mechanism was systematically investigated and accounted by the annihilation between electron-injected and hole-injected LaF3:Ce NPs. Experimental conditions were optimized to obtain the optimum CL. This work introduced a new pathway for enhancing traditional luminescent process through developing advanced nanomaterials.
- Published
- 2021
141. A High‐Performance Room‐Temperature Li||Ga–Sn Liquid Metal Battery for Grid Energy Storage
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Kaijun Wang, Tianyou Chen, Kaizhao Wang, Zhiyi Wang, Jin Hu, Ningning Fan, Jingtao Tang, and Wei Jun Zhang
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Battery (electricity) ,Liquid metal ,Materials science ,General Energy ,business.industry ,Optoelectronics ,Grid energy storage ,business - Published
- 2021
142. Nanomaterials meet microfluidics: Improved analytical methods and high-throughput synthetic approaches
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Tianyou Chen, Song Yin, and Jing Wu
- Subjects
Materials science ,Microfluidic chip ,010401 analytical chemistry ,Microfluidics ,Nanotechnology ,01 natural sciences ,Throughput (business) ,Spectroscopy ,0104 chemical sciences ,Analytical Chemistry ,Nanomaterials - Abstract
In recent years, both nanomaterials (NMs) and microfluidics have unprecedented development. NMs with specific morphologies and versatile surface functionalization offer new opportunities for developing ultrasensitive and selective microfluidic methods. With some inherent merits, microfluidic chip has introduced a new avenue for NM synthesis. The combination of NMs with microfluidics provides improved methods alone with superior synthetic efficacies. Therefore, it is necessary to summarize research advances in NM-based microfluidic methods and microfluidic-based NM synthesis. In this review, NM-based microfluidic methods are categorized into optical, electrical, magnetic and acoustic methods according to the integrated techniques while microfluidic-based NM synthesis is summarized to be spherical (0D), one dimension (1D), two dimensions (2D) and three dimensions (3D) NMs according to the sizes of NMs synthesized on microfluidic chips. The ultimate goals are to stimulate the design of exquisite microfluidic platforms and efficient synthetic strategies of NMs for biochemical analysis.
- Published
- 2021
143. Comprehensive analyses of potential key genes in active tuberculosis
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Jiemei Cen, Tuo Liang, Zhaojun Lu, Jie Jiang, Xihua Sun, Xinli Zhan, Zide Zhang, Tianyou Chen, Jiarui Chen, Liyi Chen, Shengsheng Huang, Chong Liu, Hao Li, and Guoyong Xu
- Subjects
biology ,Microarray ,Phylogenetic tree ,business.industry ,Gene Expression Profiling ,Computational Biology ,General Medicine ,Computational biology ,Microarray Analysis ,Guanylate-binding protein ,Guanylate binding protein 5 ,STAT protein ,biology.protein ,Humans ,Tuberculosis ,Medicine ,STAT1 ,KEGG ,business ,Gene - Abstract
Background Tuberculosis (TB) is a global health problem that brings us numerous difficulties. Diverse genetic factors play a significant role in the progress of TB disease. However, still no key genes for TB susceptibility have been reported. This study aimed to identify the key genes of TB through comprehensive bioinformatics analysis. Methods The series microarray datasets from the gene expression omnibus (GEO) database were analyzed. We used the online tool GEO2R to filtrate differentially expressed genes (DEGs) between TB and health control. Database for annotation can complete gene ontology function analysis as well as Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. Protein-protein interaction (PPI) networks of DEGs were established by STRING online tool and visualized by Cytoscape software. Molecular Complex Detection can complete the analysis of modules in the PPI networks. Finally, the significant hub genes were confirmed by plug-in Genemania of Cytoscape, and verified by the verification cohort and protein test. Results There are a total of 143 genes were confirmed as DEGs, containing 48 up-regulated genes and 50 down-regulated genes. The gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis show that upregulated DEGs were associated with cancer and phylogenetic, whereas downregulated DEGs mainly concentrate on inflammatory immunity. PPI networks show that signal transducer and activator of transcription 1 (STAT1), guanylate binding protein 5 (GBP5), 2'-5'-oligoadenylate synthetase 1 (OAS1), catenin beta 1 (CTNNB1), and guanylate binding protein 1 (GBP1) were identified as significantly different hub genes. Conclusion We conclude that these genes, including TAT1, GBP5, OAS1, CTNNB1, GBP1 are a candidate as potential core genes in TB and treatment of TB in the future.
- Published
- 2021
144. Immune status changing helps diagnose osteoarticular tuberculosis
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Jie Jiang, Jiang Xue, Guoyong Xu, Tuo Liang, Tianyou Chen, Zhen Ye, Chong Liu, Hao Li, Zhaojie Qin, Yunfeng Nie, Haopeng Zeng, Xinli Zhan, Jiarui Chen, and Zide Zhang
- Subjects
Male ,Bacterial Diseases ,0301 basic medicine ,genetic structures ,Physiology ,Logistic regression ,Monocytes ,Tuberculosis, Osteoarticular ,Leukocyte Count ,White Blood Cells ,Medical Conditions ,0302 clinical medicine ,Animal Cells ,Databases, Genetic ,Drug Discovery ,Medicine and Health Sciences ,Gene Regulatory Networks ,Lymphocytes ,030212 general & internal medicine ,Child ,Aged, 80 and over ,Multidisciplinary ,biology ,Tuberculosis Drug Discovery ,Middle Aged ,Body Fluids ,Actinobacteria ,Infectious Diseases ,Blood ,Child, Preschool ,Medicine ,Tuberculosis Diagnosis and Management ,Female ,Cellular Types ,Anatomy ,Research Article ,musculoskeletal diseases ,Adult ,Platelets ,medicine.medical_specialty ,Drug Research and Development ,Tuberculosis ,Adolescent ,Science ,Immune Cells ,Immunology ,Mycobacterium tuberculosis ,Young Adult ,03 medical and health sciences ,Diagnostic Medicine ,Internal medicine ,medicine ,Humans ,Aged ,Retrospective Studies ,Pharmacology ,Immune status ,Blood Cells ,Bacteria ,Receiver operating characteristic ,business.industry ,Gene Expression Profiling ,Organisms ,Biology and Life Sciences ,Osteoarticular tuberculosis ,Cell Biology ,Nomogram ,Tropical Diseases ,medicine.disease ,biology.organism_classification ,Nomograms ,030104 developmental biology ,Gene Expression Regulation ,Case-Control Studies ,Clinical diagnosis ,business ,Mycobacterium Tuberculosis - Abstract
Objective This study is aimed to develop a new nomogram for the clinical diagnosis of osteoarticular tuberculosis (TB). Methods xCell score estimation to obtained the immune cell type abundance scores. We downloaded the expression profile of GSE83456 from GEO and proceed xCell score estimation. The routine blood examinations of 326 patients were collected for further validation. We analyzed univariate and multivariate logistic regression to identified independent predicted factor for developing the nomogram. The performance of the nomogram was assessed using the receiver operating characteristic (ROC) curves. The correlation of ESR with lymphocytes, monocytes, and ML ratio was performed and visualized in osteoarticular TB patients. Results Compared with the healthy control group in the dataset GSE83456, the xCell score of basophils, monocytes, neutrophils, and platelets was higher, while lymphoid was lower in the EPTB group. The clinical data showed that the cell count of monocytes were much higher, while the cell counts of lymphocytes were lower in the osteoarticular TB group. AUCs of the nomogram was 0.798 for the dataset GSE83456, and 0.737 for the clinical data. We identified the ML ratio, BMI, and ESR as the independent predictive factors for osteoarticular TB diagnosis and constructed a nomogram for the clinical diagnosis of osteoarticular TB. AUCs of this nomogram was 0.843. Conclusions We demonstrated a significant change between the ML ratio of the EPTB and non-TB patients. Moreover, we constructed a nomogram for the clinical diagnosis of the osteoarticular TB diagnosis, which works satisfactorily.
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- 2021
145. Investigation of the supercapacitance of ruthenium-based/ hemp stem activated carbon
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Kaijun Wang, Yunbiao Duan, Tianyou Chen, Zhang Jiamin, Jiang Zhongming, Kaizhao Wang, Jin Hu, and Wei Jun Zhang
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Tetramethylammonium ,Supercapacitor ,Materials science ,chemistry.chemical_element ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Capacitance ,Ruthenium oxide ,0104 chemical sciences ,Dielectric spectroscopy ,Ruthenium ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,medicine ,General Materials Science ,Cyclic voltammetry ,0210 nano-technology ,Activated carbon ,medicine.drug - Abstract
This work presents the synthesis of amorphous ruthenium-based/hemp stem activated carbon (HSAC) composites by a liquid phase co-precipitation method. It is the first time that a solution of tetramethylammonium bicarbonate is used as the precipitant. The result reveals that the as-synthesized ruthenium oxide particles are small in size and homogenously distributed on the activated carbon surface. Cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) results show that the ruthenium oxide/HSAC composite has a high mass-specific capacitance (652.79 F g−1 at 5 mV s−1) and excellent rate capability. Electrochemical impedance spectroscopy (EIS) experiments further demonstrate that it has a low device series resistance (0.653 Ω), which has a great enhancement by contrast with the state-of-the-art previous reports. High specific capacitance, outstanding cycling stability, and facile preparation conditions make the electrode material potentially promising for energy storage and conversion devices.
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- 2021
146. Radiation shielding properties of flexible liquid metal-GaIn alloy
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Jin Hu, Hongtao Fan, Kaijun Wang, Kaizhao Wang, Jingtao Tang, Yongjin Feng, Youwen Zhai, Ziqiang Zhao, and Tianyou Chen
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Liquid metal ,Range (particle radiation) ,Materials science ,020209 energy ,Attenuation ,Alloy ,Energy Engineering and Power Technology ,02 engineering and technology ,010501 environmental sciences ,engineering.material ,01 natural sciences ,Fluid property ,Condensed Matter::Materials Science ,Radiation shielding ,Nuclear Energy and Engineering ,0202 electrical engineering, electronic engineering, information engineering ,engineering ,Transmission coefficient ,Composite material ,Safety, Risk, Reliability and Quality ,Waste Management and Disposal ,Radiation attenuation ,0105 earth and related environmental sciences - Abstract
Flexible liquid metals of GaIn alloy have been prepared using the melt technique as a novel radiation attenuation material. To determine the radiation shielding performance, the mass attenuation coefficients (μm) of samples were calculated using MCNPX and XCOM program within 0.015–15 MeV energy range. Afterward, LACs, HVLs, TVLs, and Zeff values were obtained to determine the radiation shielding performance. It is observed that Ga20In80 alloy has the most remarkable radiation shielding ability for studied samples. Moreover, the transmission behavior of rays in GaIn alloys was investigated. We simulated the weight of GaIn alloy to be 13% lower than lead with the same transmission coefficient, which is consistent with the XRD experiment. Interestingly, the special fluid property of GaIn alloys imparts an extraordinary self-healing capacity to repair the macro-voids and defects resulting from radiations.
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- 2021
147. Electrochemical reduction of CO2 into CO in tetrabutylammonium perchlorate/propylene carbonate: Water effects and mechanism
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Jian-xiong Liu, Yu-Qi Hu, Jin Shi, Tianyou Chen, Qing-yuan Li, Feng-xia Shen, Ning Song, Feng Shi, Jia Youjian, and Yongnian Dai
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Electrolysis ,General Chemical Engineering ,Inorganic chemistry ,02 engineering and technology ,Electrolyte ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,0104 chemical sciences ,law.invention ,chemistry.chemical_compound ,chemistry ,law ,Propylene carbonate ,Solubility ,0210 nano-technology ,Faraday efficiency ,Carbon monoxide ,Electrochemical reduction of carbon dioxide - Abstract
Electrochemical reduction of carbon dioxide (CO 2 ) into carbon monoxide (CO) is of interesting because this method has a promising prospect in the chemical industry. Since CO 2 is a non-polar molecule, and has high solubility in organic solvent, it would be beneficial to conduct CO 2 reduction in organic electrolyte. However, because the electrochemical reduction of CO 2 into CO naturally produces H 2 O, this reaction actually proceeds under the influence of H 2 O. In present work, we have investigated a variety of commonly used organic electrolytes with the aim to look for an organic electrolyte which is suitable for industrial application. By comparison, we have selected tetrabutylammonium perchlorate (Bu 4 NClO 4 )/propylene carbonate (PC) as the desirable one. It has been found that the presence of H 2 O in Bu 4 NClO 4 /PC plays a crucial role in improving the performance of Bu 4 NClO 4 /PC, such as increasing conductivity, decreasing viscosity, promoting CO 2 solubility. In addition, owing to the hydrophobic nature of PC, H 2 O can separate from Bu 4 NClO 4 /PC when its content exceeds 6.8 wt %. This advantage is crucial for industrial application. We have conducted CO 2 reduction in Bu 4 NClO 4 /PC containing 6.8 wt % H 2 O at Au electrode for 4 h. The Faradaic efficiency for CO formation and the cathodic current density have been stabilized at 84.3% and 6.3 mA/cm 2 after 30 minuet of electrolysis, no degradation has been observed on the performance of Bu 4 NClO 4 /PC, indicating NBu 4 NClO 4 /PC has a promising perspective in the chemical industry.
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- 2017
148. Pyrene-Containing Polymer-Supported Cu/TEMPO Catalytic Systems: Aromatic Stacking-Enhanced Cooperative Catalysis.
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Tianyou Chen, Wei Xiao, Zihao Wang, Pengfei Gan, Changfeng Yi, and Zushun Xu
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- 2022
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149. Synthesis of Monodisperse ZIF-67@CuSe@PVP Nanoparticles for pH-Responsive Drug Release and Photothermal Therapy.
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Jiarui Wu, Zhanjie Zhang, Chenxu Qiao, Changfeng Yi, Zushun Xu, Tianyou Chen, and Xiaofang Dai
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- 2022
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150. Lenvatinib and Cu2-xS nanocrystals co-encapsulated in poly(D,L-lactide-co-glycolide) for synergistic chemo-photothermal therapy against advanced hepatocellular carcinoma.
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Qi Xu, Qiuting Li, Zhe Yang, Piao Huang, Han Hu, Zhimin Mo, Zizhen Qin, Zushun Xu, Tianyou Chen, and Shengli Yang
- Abstract
Lenvatinib (LT) is gradually replacing sorafenib as an alternative targeted drug against advanced hepatocellular carcinoma (HCC). However, the anticancer effects of LT are still limited because of its low cytotoxicity, multidrug resistance (MDR), and tumor relapse. Herein, we constructed a smart biophotonic nanoplatform to overcome the barriers preventing high performance. LT and copper sulfide nanocrystals (Cu
2-x S NCs) with excellent photothermal properties in the near-infrared-II (NIR-II) zone were co-encapsulated in poly(D,L-lactide-co-glycolide) (PLGA) through nanoprecipitation. Both in vitro and in vivo evaluations demonstrated that Cu2-x S NCs enhanced the anticancer efficacy of LT, without recurrence. In addition, the presence of copper ions could allow glutathione (GHS) to be consumed and oxygen to be produced, likely suppressing the expression of P-glycoprotein (P-gp) and overcoming the issue of MDR relating to LT. More importantly, synergistic chemo-photothermal therapy with LT and Cu2-x S NCs was more effective than any single therapy or theoretical combination. This nanoplatform is promising for advancing future LT-based treatment strategies for HCC therapy. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF
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