Publications by authors named "XiMing Xu"

Context: Molecular docking is vital for structure-based virtual screening and heavily depends on accurate and robust scoring functions. Scoring functions often inadequately account for the breakage of solvent hydrogen bonds, hindering the accuracy of predicting binding energy. Here, we introduce LeScore, a novel scoring function that specifically incorporates the hydrogen bonding penalty (HBP) in an aqueous environment, aiming to penalize unfavorable polar interactions when hydrogen bonds with water are broken but the energy loss is not fully compensated by newly formed protein-ligand interactions.

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Phloretin exhibits strong antioxidant and anti-aging properties by inhibiting mitochondrial oxidation of glutamate, succinic acid, and ascorbic acid. However, its clinical application is limited by poor aqueous solubility and low oral bioavailability. To enhance its bioavailability and efficacy, we incorporated phloretin into nano-micelles (phloretin-MM) using the thin film dispersion method.

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Background: Chronic Kidney Disease (CKD) has become one of the major life-threatening conditions. Moringa seeds have been reported to exhibit renoprotective effects, with Niazimicin as its characteristic component.

Objective: To investigate the anti-renal injury effects of Niazimicin and its mixed micelles (N-M) that composed of monomethyl ether poly (ethylene glycol)-polycaprolactone (mPEG-PCL) and polyethylene glycolated chitosan (PEG-CS) on adenine-induced CKD mice.

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Redox-based diagnostic and therapeutic applications have long suffered from a shortage of suitable drugs and probes of high specificity. In the context of anti-ferroptosis research for neurological diseases, the inaccessibility of a blood-brain barrier (BBB) permeable small molecular ferroptosis inhibitor, and the lack of specific ferroptosis probes, seriously impeded a deeper understanding of the mechanism of ferroptosis and the development of clinically applicable drugs. We report herein a novel 1,3,4-thiadiazole-functionalized druglike ferrostatin analogue entitled Ferfluor-1 with superior anti-ferroptosis potency, favorable BBB permeability and in vivo activity against stroke and Parkinson's disease.

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Scoring functions (SFs) of molecular docking is a vital component of structure-based virtual screening (SBVS). Traditional SFs yield their inherent shortage for idealized approximations and simplifications predicting the binding affinity. Complementarily, SFs based on deep learning (DL) have emerged as powerful tools for capturing intricate features within protein-ligand (PL) interactions.

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Tumor immunotherapy aims to harness the immune system to identify and eliminate cancer cells. However, its full potential is hindered by the immunosuppressive nature of tumors. Radiotherapy remains a key treatment modality for local tumor control and immunomodulation within the tumor microenvironment.

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Surface modification plays an essential role in dictating cell behavior and fate, as it creates a microenvironment that profoundly influences cell attachment, migration, proliferation, and differentiation. This review aims to the intricate interplay of culture surface properties, including topography, stiffness, charge, and chemical modifications, demonstrating their profound impact on cell destiny. We explore the nuanced responses of cells to varying surface topographies, from nano- to microscale features, elucidating the influence of geometric patterns and roughness.

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A rational design strategy to improve the thermal stability of enzymes is essential for advancing industrial applications. This study proposes a computer-aided rational design strategy combining deep learning and multiple energy function methods to enhance the thermal stability of ulvan lyase. ColabFold was employed for structure prediction.

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Background: The mitochondrial solute carrier family 25 (SLC25) is known to play a pivotal role in oncogenesis, yet its specific involvement in hepatocellular carcinoma (HCC) remains poorly elucidated.

Methods: In this study, we performed a clustering analysis of HCC patients in the Cancer Genome Atlas database based on the expression levels of SLC25 members, and conducted clinical feature analysis for each patient within the clusters. Subsequently, we developed a prognostic model using a Lasso regression approach with SLC25A19, SLC25A49, and SLC25A51 as features, and generated a risk score for each HCC patient.

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Background: The study is to evaluate the efficacy and safety of combined anlotinib and EGFR-tyrosine kinase inhibitors (TKIs) in patients with advanced non-small cell lung cancer (NSCLC) who had gradual, oligo, or potential progression after previous EGFR-TKIs treatment.

Methods: We conducted an open-label, single-arm, multicenter, phase II trial in China. Eligible patients were 18-75 years old with histologically or cytologically confirmed NSCLC who were EGFR mutation positive and showed gradual, oligo, or potential progression after EGFR-TKIs.

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Background: Capecitabine, a prodrug of 5-fluorouracil, is extensively utilized for the treatment of metastatic breast cancer, colorectal cancer, and gastric cancer. Nevertheless, there exist limitations in comprehending adverse reactions (AEs) in clinical practice. In this study, we investigated the distribution of AEs associated with capecitabine and explored potential rare adverse reactions by mining the Food and Drug Administration Adverse Event Reporting System (FAERS).

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Background: Predicting and reducing the 28-day mortality in sepsis remains a challenge in this research field.

Objective: This study aimed to explore the association between hypertension and 28-day mortality in sepsis.

Methods: This study is a cross-sectional approach with Mendelian Randomization (MR).

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Article Synopsis
  • * It involved a case-control design with 2,137 children diagnosed with cryptorchidism and 2,137 matched controls, focusing on exposure levels of PM during the first two months of pregnancy.
  • * The results indicate a positive correlation, suggesting that maternal exposure to PM2.5 in early pregnancy may increase the risk of their child developing cryptorchidism.
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Background: Anterior controllable antedisplacement and fusion (ACAF) is an emerging surgical approach for treating cervical ossification of the posterior longitudinal ligament (C-OPLL), yet there is limited data on its long-term efficacy and safety. The present study aimed to analyze the short- and long-term postoperative clinical and radiological outcomes and perioperative complications of ACAF for patients with C-OPLL.

Methods: This was a single-center, retrospective, cohort study, with the mean duration of follow-up of at least 24 months.

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Article Synopsis
  • Glutathione peroxidase 4 (GPX4) is essential in the ferroptosis pathway, presenting a promising target for treating difficult tumors, but current inhibitors lack effectiveness and selectivity.
  • Researchers developed potent anti-GPX4 nanobodies using Bactrian camels and a phage library, improving their ability to target GPX4 in cells.
  • The nanobody 12E showed significant anti-GPX4 activity, triggering ferroptosis in cancer cells and demonstrating better selectivity and safety than existing GPX4 inhibitors, paving the way for new cancer treatments.
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  • Aggressive primary gastrointestinal non-Hodgkin lymphoma (PGINHL) is a rare type of cancer that often leads to serious gastrointestinal complications (GICs), with a significant portion of patients experiencing these issues.
  • A study analyzed 124 aggressive PGINHL cases to compare patients with GICs to those without, identifying risk factors and treatment outcomes through statistical methods like Logistic regression and Kaplan-Meier survival analysis.
  • Findings revealed that nearly half of the patients had GICs, with diffuse large B-cell lymphoma being the most common type, and specific risk factors such as the tumor's location in the small intestine and size were important for predicting complications.
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There are few analyses comparing complete nephrectomy with resection of the renal parenchyma only (CN) or radical nephrectomy that includes simultaneous resection of the parenchyma, affected perirenal fascia, perirenal fat, and ureter (RN) relative to partial nephrectomy (PN) for patients with nonmetastatic (M0) renal cell carcinoma (RCC) in terms of overall survival (OS). This study aimed to evaluate the effect of different nephrectomy on the OS of M0 RCC and to identify the main beneficiaries of different nephrectomy. The data was collected from the Surveillance, Epidemiology and End Results (SEER) database.

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Overexpression of glial fibrillary acidic protein (GFAP) in activated astrocytes following spinal cord injury is closely associated with glial scar formation, which harms axonal regrowth. In this study, we prepared ultrasmall cationic carbon quantum dots (CQDs) via one-step hydrothermal carbonization. Lycium barbarum oligosaccharides were used as the carbon source for the first time, and polyetherimide (PEI) and ethylenediamine (ED) were used as cationic reagents.

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This study aimed to construct a self-microemulsion drug delivery system (SMEDDS) for Formononetin (FMN) to improve its solubility and bioavailability while combining the nanocrystals (NCs) technology. The SMEDDS prescription composition was optimized with a pseudo-three-phase diagram, followed by a series of in vitro and in vivo evaluations of the selected optimal prescriptions. FMN-NCs loaded SMEDDS showed a homogeneous spherical shape in the Transmission electron microscope and the particle size was measured as (20.

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Background: Mesenchymal stem cells (MSCs) possess the capability to mitigate multiorgan failure (MOF) and reduce mortality rates in sepsis. However, their survival is significantly limited due to oxidative stress responses triggered by excessive sepsis inflammation. Previous studies have demonstrated that the paracrine effect of MSCs can be enhanced by cytokine stimuli such as IL-1β, TNF-α, and IFN-γ, a process known as inflammatory licensing.

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IGFALS forms stable ternary complexes with insulin-like growth factors (IGF1 and IGF2) and IGF-binding proteins (IGFBP3 and IGFBP5), which prolong the half-lives of IGFs. Through immunohistochemical analysis of 90 pairs of clinical samples and bioinformatics analysis, we observed downregulation of IGFALS in hepatocellular carcinoma tissues, which was associated with poor patient prognosis. This prompted us to explore the specific molecular mechanism of action of IGFALS in the inhibition of hepatocellular carcinoma (HCC), which could be a potential new target for the treatment of HCC.

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Article Synopsis
  • - Asthma is a global public health issue characterized by chronic airway inflammation, and nobiletin, a compound from traditional Chinese medicine, is investigated for its potential anti-asthmatic properties.
  • - Research on nobiletin demonstrated that it significantly reduces inflammatory cells and cytokines in mice, improving airway responsiveness, implying its effectiveness in treating asthma.
  • - The study identified PDE4B as the target of nobiletin, which activates the cAMP-PKA-CREB signaling pathway, further confirming its anti-inflammatory and anti-airway remodeling effects.
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Article Synopsis
  • The extracellular matrix (ECM) is a vital network of macromolecules that supports neighboring cells and plays a key role in the communication between cancer-associated fibroblasts (CAFs) and tumor-associated macrophages (TAMs) in the tumor microenvironment (TME).
  • Advances in single-cell sequencing have improved our understanding of the diverse cellular populations and ECM proteins within the TME, revealing complex signaling interactions among these components.
  • The review discusses the interplay between ECM, TAMs, and CAFs, examining the ECM proteins they release and the implications for targeted therapies, underscoring the importance of ECM proteins in cancer treatment strategies.
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Background: In hepatocellular carcinoma (HCC) treatment, first-line targeted therapy in combination with immune checkpoint inhibitors (ICIs) has improved patient prognosis, but the 5-year survival rate is far from satisfactory. Studies have shown that the extracellular matrix (ECM) is an essential part of the tumour microenvironment (TME) and participates in the progression of malignant tumours. ECM remodelling can enhance matrix stiffness in cirrhosis patients, induce an immunosuppressive microenvironment network, and affect the efficacy of targeted therapies and ICIs for treating HCC.

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