检索结果-南通市图书馆

APTAnet: an atom-level peptide-TCR interaction affinity prediction model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biophysics Reports 2024年第1期10卷 1-14页

作者： Peng Xiong Anyi Liang Xunhui Cai Tian Xia School of Artificial Intelligence and Automation Huazhong University of Science and Technology Institute of Pathology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology

The prediction of affinity between TCRs and peptides is crucial for the further development of TIL(Tumor-Infiltrating Lymphocytes) immunotherapy. Inspired by the broader research of drug-protein interaction(DPI), we propose an atom-level peptide-TCR interaction(PTI) affinity prediction model APTAnet using natural language processing methods. APTAnet model achieved an average ROC-AUC and PR-AUC of 0.893 and 0.877, respectively, in ten-fold cross-validation on 25,675 pairs of PTI ***, experimental results on an independent test set from the McPAS database showed that APTAnet outperformed the current mainstream models. Finally, through the validation on 11 cases of real tumor patient data, we found that the APTAnet model can effectively identify tumor peptides and screen tumor-specific TCRs.

关键词： Immunotherapy TCR Antigen Natural language processing Transfer learning

NAT10-mediated ac 4 C-modified ANKZF1 promotes tumor progression and lymphangiogenesis in clear-cell renal cell carcinoma by attenuating YWHAE-driven cytoplasmic retention of YAP1

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Cancer Communications 2024年第3期44卷 361-383页

作者： Daojia Miao Jian Shi Qingyang Lv Diaoyi Tan Chuanyi Zhao Zhiyong Xiong Xiaoping Zhang Department of Urology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP.R.China Institute of Urology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP.R.China

Background:Lymphatic metastasis is one of the most common metastatic routes and indicates a poor prognosis in clear-cell renal cell carcinoma(ccRCC).N-acetyltransferase 10(NAT10)is known to catalyze N4-acetylcytidine(ac4C)modification of mRNA and participate in many cellular ***,its role in the lymphangiogenic process of ccRCC has not been *** study aimed to elucidate the role of NAT10 in ccRCC lymphangiogenesis,providing valuable insights into potential therapeutic targets for ***:ac4C modification and NAT10 expression levels in ccRCC were assessed using public databases and clinical *** investigations involved manipulating NAT10 expression in cellular and mouse models to study its role in *** insights were gained through a combination of RNA sequencing,mass spectrometry,co-immunoprecipitation,RNA immuno-precipitation,immunofluorescence,and site-specific mutation ***:We found that ac4C modification and NAT10 expression levels increased in ***10 promoted tumor progression and lymphangiogene-sis of ccRCC by enhancing the nuclear import of Yes1-associated transcriptional regulator(YAP1).Subsequently,we identified ankyrin repeat and zinc fin-ger peptidyl tRNA hydrolase 1(ANKZF1)as the functional target of NAT10,and its upregulation in ccRCC was caused by NAT10-mediated ac4C *** analyses demonstrated that ANKZF1 interacted with tyro-sine 3-monooxygenase/tryptophan 5-monooxygenase activation protein epsilon(YWHAE)to competitively inhibit cytoplasmic retention of YAP1,leading to transcriptional activation of pro-lymphangiogenic ***:These results suggested a pro-cancer role of NAT10-mediated acetylation in ccRCC and identified the NAT10/ANKZF1/YAP1 axis as an under-reported pathway involving tumor progression and lymphangiogenesis in ccRCC.

关键词： clear-cell renal cell carcinoma N4-acetylcytidine N-acetyltransferase 10 YAP1 nuclear import

Effect of magnetic resonance imaging in liver metastases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第1期30卷 112-114页

作者： Xing-Liang Huang Xiao-Dong Wang Zhao-Miao Gong Yan-Feng Zheng Jing-Xin Mao Department of science and Education Dianjiang People's Hospital of ChongqingChongqing 408399China Department of science and Industry Chongqing Medical and Pharmaceutical CollegeChongqing 400030China

This letter to the editor is a commentary on a study titled"Liver metastases:The role of magnetic resonance imaging."Exploring a noninvasive imaging evaluation system for the biological behavior of hepatocellular carcinoma(HCC)is the key to achieving precise diagnosis and treatment and improving *** review summarizes the role of magnetic resonance imaging in the detection and evaluation of liver metastases,describes its main imaging features,and focuses on the added value of the latest imaging tools(such as T1 weighted in phase imaging,T1 weighted out of phase imaging;diffusion-weighted imaging,T2 weighted imaging).In this study,I investigated the necessity and benefits of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid for HCC diagnostic testing and prognostic evaluation.

关键词： Liver metastases Magnetic resonance imaging Liver-specific contrast agents Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid Hepatocellular carcinoma Hepatobiliary contrast agents

Crosstalk among Oxidative Stress,Autophagy,and Apoptosis in the Protective Effects of Ginsenoside Rb1 on Brain Microvascular Endothelial Cells:A Mixed Computational and Experimental Study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current medical science 2024年第3期44卷 578-588页

作者： Yi-miao LUO Shu-sen LIU Ming ZHAO Wei WEI Jiu-xiu YAO Jia-hui SUN Yu CAO Hao LI Department of Geriatrics Peking University Traditional Chinese Medicine Clinical Medical School (Xiyuan)Beijing100901China Department of Integration of Chinese and Western Medicine Peking University Health Science CenterBeijing100191China School of Pharmacy Harbin University of CommerceHarbin150028China Xiyuan Hospital China Academy of Chinese Medical ScienceBeijing100901China Wangjing Hospital China Academy of Chinese Medical ScienceBeijing100102China

Objective Brain microvascular endothelial cells (BMECs) were found to shift from their usually inactive state to an active state in ischemic stroke (IS) and cause neuronal damage. Ginsenoside Rb1 (GRb1),a component derived from medicinal plants,is known for its pharmacological benefits in IS,but its protective effects on BMECs have yet to be explored. This study aimed to investigate the potential protective effects of GRb1 on BMECs. Methods An in vitro oxygen-glucose deprivation/reperfusion (OGD/R) model was established to mimic ischemia-reperfusion (I/R) injury. Bulk RNA-sequencing data were analyzed by using the Human Autophagy Database and various bioinformatic tools,including gene set enrichment analysis (GSEA),Gene Ontology (GO) classification and enrichment analysis,Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis,protein-protein interaction network analysis,and molecular docking. Experimental validation was also performed to ensure the reliability of our findings. Results Rb1 had a protective effect on BMECs subjected to OGD/R injury. Specifically,GRb1 was found to modulate the interplay between oxidative stress,apoptosis,and autophagy in BMECs. Key targets such as sequestosome 1 (SQSTM1/p62),autophagy related 5 (ATG5),and hypoxia-inducible factor 1-alpha (HIF-1α) were identified,highlighting their potential roles in mediating the protective effects of GRb1 against IS-induced damage. Conclusion GRbl protects BMECs against OGD/R injury by influencing oxidative stress,apoptosis,and autophagy. The identification of SQSTM1/p62,ATG5,and HIF-1α as promising targets further supports the potential of GRb1 as a therapeutic agent for IS,providing a foundation for future research into its mechanisms and applications in IS treatment.

关键词： ischemic stroke ginsenoside Rb1 brain microvascular endothelial cells oxidative stress autophagy apoptosis bioinformatic analysis

Three-dimensional choroidal vascularity index and choroidal thickness in fellow eyes of acute and chronic primary angle-closure using swept-source optical coherence tomography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第1期17卷 42-52页

作者： Hai-Li Huang Guan-Hong Wang Liang-Liang Niu Xing-Huai Sun Department of Ophthalmology&Visual science Eye&ENT HospitalShanghai Medical CollegeFudan UniversityShanghai 200031China State Key Laboratory of medical Neurobiology and MOE Frontiers Center for Brain science Institutes of Brain ScienceFudan UniversityShanghai 200032China NHC Key Laboratory of Myopia Chinese Academy of Medical Sciencesand Shanghai Key Laboratory of Visual Impairment and Restoration(Fudan University)Shanghai 200031China

AIM:To compare the three-dimensional choroidal vascularity index(CVI)and choroidal thickness between fellow eyes of acute primary angle-closure(F-APAC)and chronic primary angle-closure glaucoma(F-CPACG)and the eyes of normal ***:This study included 37 patients with unilateral APAC,37 with asymmetric CPACG without prior treatment,and 36 healthy *** swept-source optical coherence tomography(SS-OCT),the macular and peripapillary choroidal thickness and three-dimensional CVI were measured and compared globally and ***’s correlation analysis and multivariate regression models were used to evaluate choroidal thickness or CVI with related ***:The mean subfoveal CVIs were 0.35±0.10,0.33±0.09,and 0.29±0.04,and the mean subfoveal choroidal thickness were 315.62±52.92,306.22±59.29,and 262.69±45.55μm in the F-APAC,F-CPACG,and normal groups,*** macular sectors showed significantly higher CVIs and choroidal thickness in the F-APAC and F-CPACG eyes than in the normal eyes(P<0.05),while there were no significant differences between the F-APAC and F-CPACG *** the peripapillary region,the mean overall CVIs were 0.21±0.08,0.20±0.08,and 0.19±0.05,and the mean overall choroidal thickness were 180.45±54.18,174.82±50.67,and 176.18±37.94μm in the F-APAC,F-CPACG,and normal groups,*** were no significant differences between any of the two groups in all peripapillary *** age,shorter axial length,and the F-APAC or F-CPACG diagnosis were significantly associated with higher subfoveal CVI and thicker subfoveal choroidal thickness(P<0.05).CONCLUSION:The fellow eyes of unilateral APAC or asymmetric CPACG have higher macular CVI and choroidal thickness than those of the normal *** CVI nor choroidal thickness can distinguish between eyes predisposed to APAC or CPACG.A thicker choroid with a higher vascular volume may play a role in the pathogenesis of primary angle-closure glaucoma.

关键词： choroidal thickness choroidal vascularity index swept-source optical coherence tomography acute primary angle-closure chronic primary angle-closure glaucoma

Proteomics analysis of coronary atherosclerotic heart disease with different Traditional Chinese Medicine syndrome types before and after percutaneous coronary intervention

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2024年第3期44卷 554-563页

作者： WANG Zhibo LI Ying WANG Daoping MA Bo MIAO Lan REN Junguo LIU Jinghua LIU Jianxun Beijing Key Laboratory of Pharmacology of Chinese Materia Region Institute of Basic Medical SciencesXiyuan HospitalChina Academy of Chinese Medical SciencesNational Clinical Research Center of Cardiovascular Disease of Traditional Chinese Medicine the National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop ScienceChinese Academy of Agricultural Science Department of Cardiology Beijing Anzhen HospitalCapital Medical University

OBJECTIVE: To investigate the underlying protein molecular mechanisms of "Qi stagnation and blood stasis syndrome"(QS) and "Qi deficiency and blood stasis syndrome"(QD), as two subtypes of coronary artery disease(CAD) in Traditional Chinese Medicine(TCM),following percutaneous coronary intervention(PCI).METHODS: In this study, a total of 227 CAD patients with QS and 211 CAD patients with QD were enrolled; all participants underwent PCI. Label-free quantification proteomics were employed to analyze the changes in serum in two subtypes of CAD patients before and 6 months after PCI, aiming to elucidate the intervention mechanism of PCI in treating CAD characterized by two different TCM ***: Biochemical analysis revealed significant changes in tumor necrosis factor-α, high density lipoprotein cholesterol, blood stasis clinical symptoms observation, and Gensini levels in both patient groups post-PCI; Proteomic analysis identified 79 and 95 differentially expressed proteins in the QS and QD patient groups, respectively, compared to their control *** C8 alpha chain, complement factor H,apolipoprotein H, apolipoprotein B, plasminogen,carbonic anhydrase 2, and complement factor Ⅰ were altered in both comparison groups. Furthermore,enrichment analysis demonstrated that cell adhesion and connectivity-related processes underwent changes in QS patients post-PCI, whereas lipid metabolism-related pathways, including the peroxisome proliferator-activated receptor signaling pathway and extracellular matrix receptor interaction, underwent changes in the QD *** protein-protein interaction network analysis further enriched 52 node proteins, including apolipoprotein B,lipoprotein(a), complement C5, apolipoprotein A4,complement C8 alpha chain, complement C8 beta chain,complement C8 gamma chain, apolipoprotein H,apolipoprotein A-Ⅱ, albumin, complement C4-B,apolipoprotein C3, among others. The functional network of these proteins is posited to contribute t

关键词： Traditional Chinese Medicine syndrome coronary atherosclerotic heart disease peptide mapping percutaneous coronary intervention proteomics

A mix & act liposomes of phospholipase A2-phosphatidylserine for acute brain detoxification by blood‒brain barrier selective-opening

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2024年第4期14卷 1827-1844页

作者： Zinan Zhang Wenbin Cao Huanchun Xing Shuai Guo Lijuan Huang Lin Wang Xin Sui Kui Lu Yuan Luo Yongan Wang Jun Yang State Key Laboratory of Toxicology and medical Countermeasures Beijing Institutes of Pharmacology and ToxicologyBeijing 100850China Tianjin University of science and Technology Tianjin 300222China Hebei University of science and Technology Shijiazhuang 050018China

In the treatment of central nervous system disease,the blood-brain barrier(BBB)is a major obstruction to drug delivery that must be *** this study,we propose a brain-targeted delivery strat-egy based on selective opening of the *** strategy allows some simple bare nanoparticles to enter the brain when mixed with special opening material;however,the BBB still maintains the ability to completely block molecules from passing *** on the screening of BBB opening and matrix delivery mate-rials,we determined that phospholipase A2-catalyzed 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoserine li-posomes can efficiently carry drugs into the brain *** an effective dose,this delivery system is safe,especially with its effect on the BBB being *** mix&act delivery system has a simple structure and rapid preparation,making it a strong potential candidate for drug delivery across the BBB.

关键词： Liposomes Phospholipase A2 Phosphoserine Blood-brainbarrier Selectively open Mix&act

Large-field objective lens for multi-wavelength microscopy at mesoscale and submicron resolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Opto-Electronic Advances 2024年第6期7卷 41-56页

作者： Xin Xu Qin Luo Jixiang Wang Yahui Song Hong Ye Xin Zhang Yi He Minxuan Sun Ruobing Zhang Guohua Shi School of Biomedical Engineering(Suzhou) Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China Jiangsu Key Laboratory of medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of ScienceSuzhou 215163China

Conventional microscopes designed for submicron resolution in biological research are hindered by a limited field of view,typically around 1 *** restriction poses a challenge when attempting to simultaneously analyze various parts of a sample,such as different brain *** addition,conventional objective lenses struggle to perform consistently across the required range of wavelengths for brain imaging in *** we present a novel mesoscopic objective lens with an impressive field of view of 8 mm,a numerical aperture of 0.5,and a working wavelength range from 400 to 1000 *** achieved a resolution of 0.74μm in fluorescent beads *** versatility of this lens was further demonstrated through high-quality images of mouse brain and kidney sections in a wide-field imaging system,a confocal laser scanning system,and a two-photon imaging *** mesoscopic objective lens holds immense promise for advancing multi-wavelength imaging of large fields of view at high resolution.

关键词： mesoscopic objective lens large field-of-view high resolution multi-wavelength wide-field microscopy confocal laser scanning microscopy

Methods,Mechanisms,and Application Prospects for Enhancing Extracellular Vesicle Uptake

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Current medical science 2024年第2期44卷 247-260页

作者： Ying-peng XU Tao JIANG Xiao-fan YANG Zhen-bing CHEN Department of Hand Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China

Extracellular vesicles(EVs)are considered to be a new generation of bioinspired nanoscale drug delivery systems due to their low immunogenicity,natural functionality,and excellent ***,limitations such as low uptake efficiency,insufficient production,and inhomogeneous performance undermine their *** address these issues,numerous researchers have put forward various methods and applications for enhancing EV uptake in recent *** this review,we introduce various methods for the cellular uptake of EVs and summarize recent advances on the methods and mechanisms for enhancing EV *** addition,we provide further understanding regarding enhancing EV uptake and put forward prospects and challenges for the development of EV-based therapy in the future.

关键词： extracellular vesicles exosomes extracellular vesicle uptake extracellular vesiclebased therapy