Publications by authors named "Mengli Xu"

Carboxylates are commonly formed as intermediates during the oxidation of volatile organic compounds (VOCs) and are often regarded as significant barriers to the complete mineralization of organic pollutants. In this study, we present a novel cobalt-doped copper-based catalyst that employs an in situ benzoic acid-mediated oxygen activation strategy for the photocatalytic degradation of toluene under visible-light irradiation. Unlike traditional systems in which carbonyl intermediates contribute to catalyst deactivation, we demonstrate that benzoic acid, generated during toluene oxidation, acts as a potent ligand to modulate the electronic structure of cobalt sites.

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Tissue macrophages have an important role in the maintenance of liver homeostasis, and their functions are closely related to spatial localization. Here, through integration of whole liver lobe imaging and single-cell RNA sequencing analysis of CX3CR1 cells in the mouse liver, we identified a dense network of CX3CR1CD63 liver portal area macrophages (LPAMs) that exhibited transcriptional and spatial differences compared with CX3CR1CD207 liver capsular macrophages. The survival of LPAMs was dependent on colony-stimulating factor 1 receptor (CSF1R).

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Background: Chronic disease is a global public health problem. This study aimed to explore the association between insulin resistance (IR)-related indices and various chronic diseases, and to evaluate the predictive capacity of IR-related indices for these diseases.

Methods: The data used in this study came from CHARLS.

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Clustered regularly interspaced short palindromic repeat (CRISPR)-based targeted insertion of DNA fragments holds great promise for gene therapy. However, designing highly efficient and precise integration of large DNA segments in somatic cells while avoiding unpredictable products remains challenging. Here, we devised a novel long-offset paired nicking target integration (LOTI) strategy, which enhances the capacity of Cas9 nickase (Cas9n) in targeted gene integration in somatic cells, yielding higher knock-in (KI) efficiency compared with classical nickase-based approaches.

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The excessive accumulation of neutrophils within the epidermis is a significant hallmark of cutaneous diseases; however, the mechanisms governing neutrophil transepidermal migration (NTEM) remain inadequately understood. In this study, we develop trichromatic-fluorescence-labeled chimeric mice by utilizing Cx3cr1Lyz2 mice as bone marrow donors and Krt14 mice as recipients. This approach enables us to visualize the process of NTEM and the crosstalk between neutrophils and monocytes in a murine model of irritant contact dermatitis (ICD).

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Introduction: Macrophage phenotypes have been linked to progression and prognosis of cutaneous melanoma. However, the association between Warburg effect in A375 melanoma and macrophages polarization, as well as the underlying mechanisms, remains less well documented.

Objective: The present study aimed to investigate the effect of lactate derived from A375 melanoma on macrophage polarization, melanoma phenotype responses and the underlying mechanisms.

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Background: The treatment of relapsed/refractory T cell acute lymphoblastic leukemia (R/R T-ALL) is a significant challenge in hematologic oncology, and no standard salvage treatment plan exists. Both Chinese and international clinical guidelines recommend combination chemotherapy including venetoclax.

Methods: Efficacy and safety of venetoclax, azacitidine, homoharringtonine, cytarabine, and aclarubicin (VA-HAA) combination therapy were retrospectively analyzed in 3 patients with R/R T-ALL at the Department of Hematology, 920th Hospital of the Joint Logistics Support Force, Chinese People's Liberation Army.

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  • PathClustNet is a new pathway-based clustering algorithm developed to classify cancer subtypes by analyzing gene clusters and their associated pathways.
  • The study applied this algorithm to data from the TCGA pan-cancer project, identifying four distinct cancer subtypes (C1, C2, C3, and C4), each with unique characteristics related to metabolism, immune response, genomic stability, and mutation rates.
  • Age, smoking, viral infections, and alcohol use were found to impact various pathway activities, highlighting the importance of understanding tumor heterogeneity for precision oncology.
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  • Fluoropolymers have great potential for high-tech applications, but synthesizing them from simple monomers is challenging.
  • This research introduces a new method using organocatalyzed controlled radical copolymerization to create fluoropolymers without metals, allowing for customizable side-chain fluorinated polymers through light irradiation.
  • The resulting fluoropolymers have desirable properties like good chain-end fidelity, low dispersity, adjustable compositions, and excellent light transmission capabilities.
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Recent reports have suggested an inverse relationship between Alzheimer's disease (AD) and cancer, although the underlying mechanism remains unclear. We performed an epidemiological meta-analysis to assess cancer likelihood in AD patients and vice versa and explored the role of APOE in tumor immunity across 33 The Cancer Genome Atlas (TCGA) cancer types. Our analysis revealed that people with AD are epidemiologically less likely to develop cancer than individuals without AD (RR: 0.

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  • Metal halide-based X-ray scintillators are typically used for imaging, but red light-emitting versions are rare and challenging to develop.
  • The study investigated a new red light-emissive manganese halide compound that shows a high photoluminescence quantum yield (PLQY) of 71% and exceptional X-ray scintillation properties, yielding 19,600 photons MeV.
  • This manganese halide demonstrates strong radiation resistance and excellent imaging performance with a spatial resolution of 11.1 lpmm, paving the way for advanced medical diagnostic applications.
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  • - Neoadjuvant therapy combining camrelizumab and chemotherapy shows promise for treating locally advanced esophageal squamous cell carcinoma (ESCC), but the best way to use it alongside chemotherapy is still unclear.
  • - In a study with 55 patients, the treatment led to a major pathological response rate of 77.1%, and almost all patients had successful surgeries with significant rates of tumor downstaging.
  • - The results indicated a 2-year disease-free survival (DFS) rate of 68.9% and an overall survival (OS) rate of 74.7%, while serious treatment-related side effects occurred in 12.7% of patients, suggesting the therapy was effective and generally safe.
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CD7 targeted CAR-T has demonstrated potential in the treatment of T cell malignancies but no study has been reported about its potential in the prophylaxis of GVHD in allo-HSCT. Here we reported a special case that a boy diagnosed with refractory acute T lymphoblastic leukemia (T-ALL) was treated with universal CD7 targeted CAR-T (CD7 UCAR-T) and parent-derived peripheral blood stem cells (PBSCs). Complete remission and full engraftment of donor was observed.

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Background: Diabetes mellitus (DM) is a prevalent chronic disease marked by significant metabolic dysfunctions. Understanding its molecular mechanisms is vital for early diagnosis and treatment strategies.

Methods: We used datasets GSE7014, GSE25724, and GSE156248 from the GEO database to build a diagnostic model for DM using Random Forest (RF) and LASSO regression models.

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Cell electrofusion is a key process in many research fields, such as genetics, immunology, and cross-breeding. The electrofusion efficiency is highly dependent on the buffer osmotic pressure properties. However, the mechanism by which the buffer osmotic pressure affects cell electrofusion has not been theoretically or numerically understood.

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Brainbow is a genetic cell-labeling technique that allows random colorization of multiple cells and real-time visualization of cell fate within a tissue, providing valuable insights into understanding complex biological processes. However, fluorescent proteins (FPs) in Brainbow have distinct excitation spectra with peak difference greater than 35 nm, which requires sequential imaging under multiple excitations and thus leads to long acquisition times. In addition, they are not easily used together with other fluorophores due to severe spectral bleed-through.

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This paper presents a microfluidic device with 200 cell "cage" structures. Based on this microfluidics device, a new simple and stable electrofusion method was developed. Under hydrodynamic force, the cells moved to the desired "cage" cell capture structure and efficiently formed cell pairs (∼80.

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To investigate the expression and clinical significance of peripheral blood interleukin (IL)-17A, IL-22, T cell immunoglobulin molecule-3 (Tim-3), and galectin-9 (gal-9) in children with infectious mononucleosis (IM) caused by the Epstein-Barr virus (EBV). Peripheral blood of 54 children with IM (case group) was collected and divided into a liver damage group and a non-liver damage group. During the same period, 20 healthy children were in the control group.

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Background: Alzheimer's disease (AD) and cancer are common age-related diseases, and epidemiological evidence suggests an inverse relationship between them. However, investigating the potential mechanism underlying their relationship remains insufficient.

Methods: Based on genome-wide association summary statistics for 42,034 AD patients and 609,951 cancer patients from the GWAS Catalog using the two-sample Mendelian randomization (MR) method.

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Cell electroporation is an important cell manipulation technology to artificially transfer specific extracellular components into cells. However, the consistency of substance transport during the electroporation process is still an issue due to the wide size distribution of the natural cells. In this study, a cell electroporation microfluidic chip based on a microtrap array is proposed.

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Electroporation shows great potential in biology and biomedical applications. However, there is still a lack of reliable protocol for cell electroporation to achieve a high perforation efficiency due to the unclear influence mechanism of various factors, especially the salt ions in buffer solution. The tiny membrane structure of a cell and the electroporation scale make it difficult to monitor the electroporation process.

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For most fruit and forest species vegetative propagated from elite genotypes, adventitious rooting is essential. The ability to form adventitious roots significantly decreased during the juvenile to adult phase change. Apart from the miR156-SPL pathway, whether there is another regulation mechanism controlling age-dependent adventitious rooting ability remained largely unknown.

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Allergic contact dermatitis (ACD) and atopic dermatitis (AD) are the most common human skin disorders. Although corticosteroids have been widely used to treat ACD and AD, the side effects of corticosteroids encourage researchers to explore new immunoregulatory treatments. Here, an immunomodulatory approach based on lipid nanoparticles carrying α-helical configurational melittin (α-melittin-NP) is developed to overcome T cell-mediated inflammatory reactions in an oxazolone (OXA)-induced contact hypersensitivity mouse model and OXA-induced AD-like mouse model.

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Hepatic lymphatics are essential for liver homeostasis and immune function. However, the 3D structure and spatial distribution of hepatic lymphatic vessels (LVs) need to be confirmed. Moreover, the molecular information of hepatic lymphatic endothelial cells (LyECs) needs to be further studied.

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