5,717 results match your criteria: "Medical School of Nanjing[Affiliation]"

The Effects of the oxLDL/β2GPI/anti-β2GPI Complex on Macrophage Autophagy and its Mechanism.

Immun Inflamm Dis

November 2024

Department of Clinical Laboratory and Hematology, School of Medicine, Jiangsu University, Zhenjiang, China.

Background: Previous research has established that the oxidized low-density lipoprotein/β2-glycoprotein I/anti-β2-glycoprotein I antibody (oxLDL/β2GPI/anti-β2GPI) complex can stimulate macrophages to secrete molecules associated with atherosclerosis (AS), such as monocyte chemotactic protein 1 (MCP-1), tissue factor (TF), and tumor necrosis factor-α (TNF-α). This complex also enhances the uptake of oxLDL, thereby accelerating foam cell formation through the Toll-like receptor-4/nuclear factor kappa B (TLR4/NF-κB) pathway. Given the critical role of macrophage autophagy in the instability of vulnerable atherosclerotic plaques, it is imperative to investigate whether the oxLDL/β2GPI/anti-β2GPI complex influences macrophage autophagy in AS.

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Multimodal targeting chimeras enable integrated immunotherapy leveraging tumor-immune microenvironment.

Cell

December 2024

Synthetic and Functional Biomolecules Center, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Shenzhen Bay Laboratory, Shenzhen 518055, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China. Electronic address:

Although immunotherapy has revolutionized cancer treatment, its efficacy is affected by multiple factors, particularly those derived from the complexity and heterogeneity of the tumor-immune microenvironment (TIME). Strategies that simultaneously and synergistically engage multiple immune cells in TIME remain highly desirable but challenging. Herein, we report a multimodal and programmable platform that enables the integration of multiple therapeutic modules into single agents for tumor-targeted co-engagement of multiple immune cells within TIME.

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Purpose: To investigate the detection and predictors of prostate cancer (PCA) and clinically significant prostate cancer (csPCA) in patients with positive multiparametric MRI (mpMRI) followed by a negative MRI - guided target biopsy (TB) and systematic biopsy (SB).

Materials And Methods: This retrospective multicenter study included 694 patients from 10 tertiary referral centers with an initial positive mpMRI (PI-RADS ≥ 3) and negative results on both MRI-TB and SB. Patients were classified into three groups based on follow-up: Group 1 (prostate re-biopsy without new mpMRI), Group 2 (standardized second prostate mpMRI and subsequent re-biopsy), and Group 3 (follow-up with mpMRIs and biopsy based on clinical and radiological triggers).

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Article Synopsis
  • Severe fever with thrombocytopenia syndrome virus (SFTSV) is a highly infectious and deadly virus characterized by immune dysfunction and aggressive viral replication.
  • Research using MeRIP-seq has identified m6A modifications on SFTSV RNA, revealing that the protein YTHDF1 binds to these modifications and reduces the stability and translation of SFTSV proteins.
  • The virulence factor NSs from SFTSV increases the lactylation and degradation of YTHDF1, promoting viral replication by countering the antiviral actions of the host's immune response.
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Abnormal beta bursts of depression in the orbitofrontal cortex and its relationship with clinical symptoms.

J Affect Disord

January 2025

School of Biological Sciences & Medical Engineering, Southeast University, Nanjing 210096, China; Child Development and Learning Science, Key Laboratory of Ministry of Education, Nanjing 210096, China. Electronic address:

Background: Recent researches have reported that frequency-specific patterns of neural activity contain not only rhythmically sustained oscillations but also transient-bursts of isolated events. The aim of this study was to investigated the correlation between beta burst and depression in order to explore depressive disease and the neurological underpinnings of disease-related symptoms.

Methods: We collected resting-state MEG recordings from 30 depressive patients and a matched 40 healthy controls.

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Gastrodenol suppresses NLRP3/GSDMD mediated pyroptosis and ameliorates inflammatory diseases.

Cell Immunol

November 2024

Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China; State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing, China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing, China. Electronic address:

Pyroptosis, a form of inflammatory programmed cell death, plays a pivotal role in the pathogenesis of various diseases. This process is primarily mediated by the nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing protein 3 (NLRP3). Gastrodenol (Bismuth tripotassium dicitrate, GAS) is a mineral compound which is used to treat duodenal and gastric ulcers associated with Helicobacter pylori.

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Histopathologic Remission of Severe Diabetic Nephropathy of Donor Kidney After Kidney Transplantation: A Case Report.

Transplant Proc

November 2024

National Clinical Research Center for Kidney Diseases, Jinling Hospital, Medical School of Nanjing University, Nanjing, China. Electronic address:

Although diabetes is not an absolute contraindication for kidney donation, donor kidneys with severe diabetic nephropathy (DN) are frequently discarded. Current experience with the use of donor kidneys with severe DN is limited. Herein, we report a case of deceased donor kidney with Renal Pathology Society (RPS) classification scheme class III DN transplanted to a female recipient without postoperative hyperglycemia.

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Article Synopsis
  • Perineural invasion (PNI) in oral squamous cell carcinoma (OSCC) is linked to advanced tumors and poorer patient outcomes, but the molecular mechanisms and clinical implications are still being studied.
  • A study analyzed 279 OSCC samples, finding that PNI is associated with changes in immune cell composition, specifically lower T follicular helper cells and higher M2 macrophages, indicating a potential environment for immune evasion.
  • The identified protein Actin α1 (ACTA1) was significantly upregulated in PNI cases and may indicate a sensitivity to immunotherapy, suggesting that patients with high ACTA1 could benefit from treatments targeting cytotoxic T cells.
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Molecular Eye: A System for Precise Diagnosis and Treatment of Major Clinical Diseases Based on Molecular Probe Technology.

Chem Biomed Imaging

March 2024

Department of Radiopharmaceuticals, Nuclear Medicine Clinical Translation Center, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.

With the flourishing development of precision medicine, theranostics, generally recognized as the integration of diagnosis and treatment, has emerged as a prominent trend in clinical research. However, theranostics primarily emphasizes the end result of integration, without providing sufficient details on how precise diagnosis and synergetic individualized treatment could be achieved and what clinical challenges could be effectively addressed in clinical practice. Molecular probe technology provides a robust method to bridge the gap between theory and practice.

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This retrospective, multi-centered study aimed to improve high-quality radiation treatment (RT) planning workflows by training and testing a Convolutional Neural Network (CNN) to perform auto segmentations of organs at risk (OAR) for prostate cancer (PCa) patients, specifically the bladder and rectum. The objective of this project was to develop a clinically applicable and robust artificial intelligence (AI) system to assist radiation oncologists in OAR segmentation. The CNN was trained using manual contours in CT-datasets from diagnostic Ga-PSMA-PET/CTs by a student, then validated (n = 30, PET/CTs) and tested (n = 16, planning CTs).

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Article Synopsis
  • - UV radiation leads to increased production of reactive oxygen species (ROS) in human lens epithelial cells (HLECs), causing oxidative damage and cell death, which can contribute to cataract formation.
  • - The Nrf2-Keap1 pathway is a key mechanism in protecting against oxidative stress, and ferulic acid (FA) can activate this pathway to reduce oxidative damage and apoptosis in HLECs.
  • - In experiments, ferulic acid demonstrated the ability to lower oxidative stress and cell death caused by UVA exposure, supporting its potential as a protective agent against cataract development through modulation of the Nrf2 signaling pathway.
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Transcytosable and Ultrasound-Activated Liposome Enables Deep Penetration of Biofilm for Surgical Site Infection Management.

Adv Mater

January 2025

Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China.

Biofilm-associated surgical site infection (BSSI) is a common and grievous postoperative complication lacking effective remedies, mainly due to the poor drug accumulation and penetration in the biofilms featured by dense extracellular polymeric substances (EPSs). Here, it is found that the vascular cell adhesion molecule-1 (VCAM1) is highly overexpressed in the vascular cells of BSSI. It is proposed that the combination of VCAM1-mediated transcytosis and ultrasonic cavitation can consecutively overcome the biological barriers of vascular endothelial cells and EPS for biofilm eradication.

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Article Synopsis
  • - Idiopathic pulmonary fibrosis (IPF) is associated with increased lung cancer (LC) risk due to heightened fibroblast activity, and recent research has leveraged genetic analysis to reveal how IPF can lead to LC.
  • - A two-sample Mendelian randomization (TSMR) approach identified a genetic predisposition for the progression from IPF to LC, while machine learning and weighted gene co-expression network analysis (WGCNA) helped pinpoint eight key genes related to the immunogenic cell death (ICD) process relevant for predicting IPF.
  • - In vivo experiments indicated that specific genetic mutations, particularly in the rs9265808 locus, may increase LC risk by altering lung neutrophils, highlighting these mutations as potential
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Cancer stem-like cells (CSCs), a distinct subset recognized for their stem cell-like abilities, are intimately linked to the resistance to radiotherapy, metastatic behaviors, and self-renewal capacities in tumors. Despite their relevance, the definitive traits and importance of CSCs in the realm of oncology are still not fully comprehended, particularly in the context of clear cell renal cell carcinoma (ccRCC). A comprehensive understanding of these CSCs' properties in relation to stemness, and their impact on the efficacy of treatment and resistance to medication, is of paramount importance.

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Targeting FAP-positive chondrocytes in osteoarthritis: a novel lipid nanoparticle siRNA approach to mitigate cartilage degeneration.

J Nanobiotechnology

October 2024

Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No.7 Weiwu Road, Zhengzhou, Henan Province, 450003, China.

Background: Osteoarthritis (OA) is a common joint disease that leads to chronic pain and functional limitations. Recent research has revealed soluble fibroblast activation protein (FAP) secreted from OA synovium could degrade type II collagen (Col2) in cartilage to promote the progression of OA. This study aimed to reveal the role of FAP from chondrocytes in OA and develop a novel lipid nanoparticle (LNP)-FAP siRNA delivery system for OA treatment.

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Delivery of therapeutic RNA by extracellular vesicles derived from Saccharomyces cerevisiae for medicine applications.

J Pharm Sci

December 2024

Department of Orthopedics, Northern Jiangsu People's Hospital, Clinical Teaching Hospital of Medical School, Nanjing University, Yangzhou, China. Electronic address:

Employing small extracellular vesicles (EVs) as drug delivery vehicles presents a plethora of advantages over conventional drug delivery methods, including biological compatibility, engineering versatility for targeted delivery, and biodegradability. Therefore, strategies aimed at amplifying their therapeutic potential involve developing efficient, tissue-specific, and non-immunogenic delivery approaches. Despite rapid advancements in the realm of EVs as drug delivery systems in recent years, the availability of a high-yield, reproducible, and cost-effective source for EVs production and isolation remains a limiting factor for practical application.

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Delivering urokinase-type plasminogen activator using mulberry leaf exosomes enables thrombolysis and remodeling of venous microenvironments.

Int J Biol Macromol

December 2024

State Key Laboratory of Laboratory of Resource Insects, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing 400715, China. Electronic address:

In the treatment of thrombosis, conventional nanocarriers inevitably have problems, such as adverse reactions and difficulties in synthesis. Inspired by the concept of 'medicine food homology,' we extracted and purified natural exosomes from mulberry leaves as carriers for the delivery of urokinase-type plasminogen activator (uPA) for targeted therapy. The obtained mulberry leaf exosomes (MLE) possessed a desirable hydrodynamic particle size (119.

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Background: Mitochondrial dysfunction is linked to myocardial ischemia-reperfusion (I/R) injury. Checkpoint kinase 1 (CHK1) could facilitate cardiomyocyte proliferation, however, its role on mitochondrial function in I/R injury remains unknown.

Methods: To investigate the role of CHK1 on mitochondrial function following I/R injury, cardiomyocyte-specific knockout/overexpression mouse models were generated.

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The Role of circRNAs in the Pathological Mechanisms of Alzheimer's Disease: Potential Biomarkers for Diagnosis.

Curr Neuropharmacol

October 2024

Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China.

Alzheimer's disease (AD) is the most common neurodegenerative disease leading to dementia in the elderly, and the mechanisms of AD have not been fully defined. Circular RNAs (circRNAs), covalently closed RNAs produced by reverse splicing, have critical effects in the pathogenesis of AD. CircRNAs participate in production and clearance of Aβ and tau, regulate neuroinflammation, synaptic plasticity and the process of apoptosis and autophagy, indicating that circRNAs may be alternative biomarkers and therapeutic targets.

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Recent Advances in Wash-Free Detection Methods of Extracellular Vesicles: A Mini Review.

ACS Sens

November 2024

Clinical Laboratory, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321, Nanjing, Jiangsu Province 210008, China.

Article Synopsis
  • Extracellular vesicles (EVs) are becoming important biomarkers for disease diagnosis and prognosis in liquid biopsies, but current detection methods often involve isolation steps that can lead to loss of EVs and inconsistent results.
  • There's a growing interest in wash-free detection methods that retain EVs and avoid background interference, enhancing the potential for accurate EV analysis.
  • The review discusses advancements in various wash-free techniques—like proximity sensing and Roman spectroscopy—and evaluates their advantages and drawbacks, while highlighting future possibilities in the field.
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Clinical studies and meta-analyses have suggested a link between thyroid dysfunction and lens opacification. The objective of this study is to investigate the causal relationship between hyperthyroidism and the development of cataracts using the Mendelian randomization approach, with the aim of filling the gap in knowledge about the systemic effects of hyperthyroidism on ocular health. Leveraging genetic variants as instrumental variables, the analysis used extensive datasets from the UK Biobank and the FinnGen Database and employed three common approaches for causal inference (the Inverse Variance Weighted method, a regression based method the Weighted Median estimator, and MR-Egger regression) and accompanying sensitivity analyses to ensure robustness.

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Article Synopsis
  • Pouchitis is a common complication for patients who have undergone ileal pouch-anal anastomosis, and researchers are exploring the potential protective effects of tryptophan metabolites on the condition.
  • The study involved both clinical data from 22 patients and experiments on mice to create a model of pouchitis induced by dextran sulfate sodium, aiming to understand the role of tryptophan metabolites.
  • Key measurements in the study included levels of tryptophan metabolites, microbiome diversity, pouchitis severity, intestinal barrier function, and the activation of specific biological pathways related to inflammation.
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A splicing isoform of PD-1 promotes tumor progression as a potential immune checkpoint.

Nat Commun

October 2024

School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.

The immune checkpoint receptor, programmed cell death 1 (PD-1, encoded by PDCD1), mediates the immune escape of cancer, but whether PD-1 splicing isoforms contribute to this process is still unclear. Here, we identify an alternative splicing isoform of human PD-1, which carries a 28-base pairs extension retained from 5' region of intron 2 (PD-1^28), is expressed in peripheral T cells and tumor infiltrating lymphocytes. PD-1^28 expression is induced on T cells upon activation and is regulated by an RNA binding protein, TAF15.

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Article Synopsis
  • The study focuses on the relationship between interstitial lung abnormality (ILA) and checkpoint inhibitor-related pneumonitis (CIP) in patients with small-cell lung cancer (SCLC) undergoing first-line chemoimmunotherapy.
  • It was found that ILA is present in 32.03% of patients studied, and a significant number (12.50%) developed CIP, with ILA and past thoracic radiation therapy identified as independent risk factors for CIP.
  • The presence of ILA also indicated a higher risk of mortality, indicating that SCLC patients with ILA face both increased chances of developing CIP and a poorer prognosis overall.
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In situ vaccination is a therapeutic approach aimed at exploiting tumour antigens available at a tumour site to induce tumour-specific adaptive immune responses. Antigens released from dying tumour cells are assumed to be taken up by activated dendritic cells and presented to T cells that seek out and destroy tumour cells. This process is significantly impeded in the immunosuppressive microenvironment of tumours.

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