Publications by authors named "Xinyu Pei"

Efficient DNA replication requires highly coordinated programs for the timely recruitment of protein complexes to DNA replication forks. Defects in this process result in replication stress, which in turn activates cell cycle checkpoints, suppresses cell proliferation and induces apoptosis. In response to persistent cell growth signals that speed up DNA replication processes, cells accelerate the recruitment of DNA replication proteins to avoid DNA replication stress.

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Diabetes mellitus, a chronic metabolic disorder, can result in serious tissue and organ damage due to long-term metabolic dysfunction, leading to various complications. Therefore, exploring the pathogenesis of diabetic complications and developing effective prevention and treatment drugs is crucial. The role of ferroptosis in diabetic complications has emerged as a significant area of research in recent years.

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  • A new fluorescent probe called IF-Br-F has been developed for the specific detection of fluoride ions, showing strong fluorescence properties.
  • * The probe's effectiveness was confirmed through high-resolution mass spectrometry (HRMS) and density functional theory (DFT) calculations, achieving high sensitivity and a low detection limit of 5.82 × 10^-5 mol L.
  • * IF-Br-F can be used for fluorescence imaging in various biological contexts, including zebrafish, cells, and plant roots, while demonstrating low toxicity and good compatibility with biological systems.*
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  • * A newly developed superhydrophobic film combines various materials to provide non-adhesion, antibacterial, and self-cleaning properties while maintaining blood compatibility and excellent anticoagulant performance even after prolonged exposure to fluids.
  • * The film also releases HS gas when exposed to acidic conditions, which enhances the healing of endothelial cells and prevents toxic zinc ion release, suggesting its potential for long-term applications in medical devices.
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  • Fluoride ions are essential trace elements found naturally, and a new fluorescent probe (YF-SZ-F) has been developed for specific detection of fluoride with high sensitivity and low toxicity.
  • Tests on zebrafish and plant roots show the probe's excellent cellular permeability and compatibility, which is promising for biomedical use.
  • The probe could also be used for environmental monitoring and public health, making fluoride detection more practical and precise in everyday scenarios.
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Climate warming poses a serious threat to soil biodiversity and crop yield. Application of organic fertilizer has been extensively practiced to improve soil health and crop productivity. However, information is limited about the effects of organic fertilizer on microbial communities and diversity (richness) under warming.

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Apolipoprotein E (apoE) plays a crucial role in the pathogenesis of Alzheimer's disease (AD). Microglia exhibit a substantial upregulation of apoE in AD-associated circumstances, despite astrocytes being the primary source of apoE expression and secretion in the brain. Although the role of astrocytic apoE in the brain has been extensively investigated, it remains unclear that whether and how apoE particles generated from astrocytes and microglia differ in biological characteristic and function.

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Non-small cell lung cancer (NSCLC) is a highly lethal disease with a complex and heterogeneous tumor microenvironment. Currently, common animal models based on subcutaneous inoculation of cancer cell suspensions do not recapitulate the tumor microenvironment in NSCLC. Herein we describe a murine orthotopic lung cancer xenograft model that employs the intrapulmonary inoculation of three-dimensional multicellular spheroids (MCS).

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Background: Since the application of Immune checkpoint inhibitors (ICI), the clinical outcome for metastatic cancer has been greatly improved. Nevertheless, treatment response varies in patients, making it urgent to identify patients who will receive clinical benefits after ICI therapy. Adipose body composition has proved to be associated with tumor response.

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There is an urgent need to develop a series of multifunctional materials with good biocompatibility, high mechanical strength, hemostatic properties, antiadhesion, and anti-infection for applications in wound care. However, successfully developing multifunctional materials is challenging. In this study, two superhydrophobic composite coatings with good biocompatibility, high mechanical strength, strong antifouling and blood repellency, fast hemostasis, and good antibacterial activity are prepared on cotton fabric surface by simple, green, and low-cost one-step dip-coating technology.

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Speckle-type pox virus and zinc finger (POZ) protein (SPOP), a substrate recognition adaptor of cullin-3 (CUL3)/RING-type E3 ligase complex, is investigated for its role in cardiac fibrosis in our study. Cardiac fibroblasts (CFs) activation was achieved with TGF-β1 (20 ng/mL) and MI mouse model was established by ligation of the left anterior descending coronary, and lentivirus was employed to mediate interference of SPOP expression. SPOP was increased both in fibrotic post-MI mouse hearts and TGF-β1-treated CFs.

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The mercury ion (Hg) has hindered society to some extent due to its high biological toxicity, and a rapid method for Hg detection is urgently needed. In the present work, two fluorescent probes, YF-Hg and YF-Cl-Hg, were developed. YF-Cl-Hg was produced by introducing an electron-withdrawing substituent (-Cl) into the structure of YF-Hg.

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  • Cardiac fibrosis is a key issue in heart diseases, leading to stiffness and dysfunction, and the long noncoding RNA (LncRNA) MetBil is being studied for its role in this process.
  • The study found that increased levels of MetBil in fibrotic heart tissue post-myocardial infarction (MI) promote collagen deposition and the proliferation of cardiac fibroblasts, while reducing its expression has the opposite, protective effects.
  • MetBil regulates the protein METTL3, impacting the expression of fibrosis-related genes in a way that could open new avenues for treating heart conditions associated with fibrosis.
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  • Naked medical devices are prone to damage from blood, bacteria, and harsh environmental conditions, leading to device failures and serious health risks.
  • This study focuses on a new composite coating made from superhydrophobic ZnO/copper-zinc metal-organic frameworks and stearic acid, designed to enhance the durability and functionality of medical devices.
  • The composite coatings provide impressive waterproof, abrasion-resistant, thermal stability, self-cleaning, and antibacterial properties, making them highly suitable for use in challenging medical environments.
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The anticoagulation and antibacterial functions of implant and interventional catheters during indwelling will determine their success or failure. Here, an amino-containing copper-based metal-organic framework (Cu-MOF) coating was prepared on the thermoplastic polyurethane substrate (TPU) surface by spin coating for anti-thrombotic and anti-infection effects. The adhesion properties of the polyurethane prepolymer coating (PC) enhanced the binding force of Cu-MOF particles and TPU surface and improved stability.

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Hg in the environment endangers human health, and a convenient monitoring method is needed for the detection of Hg. In this study, we constructed a dual colorimetric near-infrared fluorescent probe (E)-2-(3-(3-(1,3-dithian-2-yl)-4-hydroxystyryl)-5,5-dimethylcyclohex-2-en-1-ylidene)malononitrile (YF-Hg), based on the malononitrile isophorone. YF-Hg can detect Hg rapidly and sensitively, with fluorescence emission in the near-infrared region (659 nm) with an obvious color change from violet to red in the visible light range.

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Background: Ku70 participates in several pathological processes through mediating repair of DNA double-strand breaks. Our previous study has identified a highly conserved long noncoding RNA cardiac ischemia reperfusion associated Ku70 interacting lncRNA (CIRKIL) that was upregulated in myocardial infarction. The study aims to investigate whether CIRKIL regulates myocardial ischemia/reperfusion (I/R) through binding to Ku70.

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Diabetic cardiomyopathy (DCM) is a common complication in diabetic patients. The molecular mechanisms of DCM remain to be fully elucidated. The intronic long noncoding RNA of DACH1 (lncDACH1) has been demonstrated to be closely associated with heart failure and cardiac regeneration.

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Myocardial ischemia-reperfusion (I/R) injury is a pathological process characterized by cardiomyocyte apoptosis, which leads to cardiac dysfunction. Increasing evidence shows that abnormal expression of long noncoding RNAs (lncRNAs) plays a crucial role in cardiovascular diseases. In this study we investigated the role of lncRNAs in myocardial I/R injury.

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MicroRNAs (miRNAs) act as important post-transcriptional regulators of gene expression by targeting the 3'-untranslated region of their target genes. Altered expression of miR-16 is reported in human ulcerative colitis (UC), but its role in the development of the disease remains unclear. Adenosine through adenosine A2a receptor (A2aAR) could inhibit nuclear factor-kappaB (NF-κB) signaling pathway in inflammation.

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