Publications by authors named "Chenfei Lu"

Objectives: Preoperative assessment of World Health Organization (WHO) meningioma grading and Ki-67 expression is crucial for treatment strategies. We aimed to develop a fully automated attention-based deep learning network to predict WHO meningioma grading and Ki-67 expression.

Materials And Methods: This retrospective study included 952 meningioma patients, divided into training (n = 542), internal validation (n = 96), and external test sets (n = 314).

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Our findings indicate that psoriasis lesions are associated with increased hair presence, which suggests a common activation mechanism linking psoriasis and hair follicle dynamics, and psoriatic lesion-induced scratching might be an additional stimulative factor of hair growth, warranting further investigation into the role of the Wnt pathway.

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Glioblastoma (GBM) is the most lethal primary brain tumor with intra-tumoral hierarchy of glioblastoma stem cells (GSCs). The heterogeneity of GSCs within GBM inevitably leads to treatment resistance and tumor recurrence. Molecular mechanisms of different cellular state GSCs remain unclear.

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Glioblastoma is a highly aggressive primary brain tumor with glioblastoma stem cells (GSCs) enforcing the intra-tumoral hierarchy. Plasma cells (PCs) are critical effectors of the B-lineage immune system, but their roles in glioblastoma remain largely unexplored. Here, we leverage single-cell RNA and B cell receptor sequencing of tumor-infiltrating B-lineage cells and reveal that PCs are aberrantly enriched in the glioblastoma-infiltrating B-lineage population, experience low level of somatic hypermutation, and are associated with poor prognosis.

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Tumors reprogram their metabolism to generate complex neoplastic ecosystems. Here, we demonstrate that glioblastoma (GBM) stem cells (GSCs) display elevated activity of the malate-aspartate shuttle (MAS) and expression of malate dehydrogenase 2 (MDH2). Genetic and pharmacologic targeting of MDH2 attenuated GSC proliferation, self-renewal, and in vivo tumor growth, partially rescued by aspartate.

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MYC promotes tumor growth through multiple mechanisms. Here, we show that, in human glioblastomas, the variant transcript encodes a 114-amino acid peptide, MYC pre-mRNA encoded protein (MPEP), from the upstream open reading frame (uORF) . Secreted MPEP promotes patient-derived xenograft tumor growth in vivo, independent of MYC through direct binding, and activation of tropomyosin receptor kinase B (TRKB), which induces downstream AKT-mTOR signaling.

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Article Synopsis
  • - Cold stress negatively impacts the growth of *Dendrobium catenatum*, increasing polysaccharide and alkaloid levels, while the role of bZIP transcription factors in this process is not well understood.
  • - A study identified 62 DcbZIP genes in *D. catenatum*, with 58 showing responses to cold stress, particularly DcbZIP3, DcbZIP6, and DcbZIP28, which are localized in the cell nucleus and contain a conserved bZIP domain.
  • - Co-expression network analysis revealed that DcbZIP6 and DcbZIP28 have negative correlations with key genes involved in metabolism, suggesting their roles in influencing flavonoid and polysaccharide metabolism under cold stress
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  • Chrysanthemum morifolium 'HangBaiJu' is a medicinal and edible plant that synthesizes important compounds like flavones and caffeoylquinic acids (CQAs), but how this process is regulated is not well understood.
  • The study identified the accumulation pattern of flavones and CQAs during the development of the chrysanthemum capitulum and pinpointed key genes involved in their biosynthesis through various analyses, highlighting important transcription factors that may regulate this process.
  • These insights contribute to understanding the regulatory mechanisms of flavone and CQA production, which could lead to improved quality and development in the chrysanthemum industry.
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Glioblastomas (GBM) are incurable central nervous system (CNS) cancers characterized by substantial myeloid cell infiltration. Whether myeloid cell-directed therapeutic targets identified in peripheral non-CNS cancers are applicable to GBM requires further study. Here, we identify that the critical immunosuppressive target in peripheral cancers, triggering receptor expressed on myeloid cells-2 (TREM2), is immunoprotective in GBM.

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Ethnopharmacological Relevance: In recent years, Chinese herbal medicine has gained more and more recognition in disease prevention and control due to its low toxicity and comprehensive treatment. C. morifolium (Chrysanthemum morifolium Ramat.

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Glioblastoma (GBM) is the most aggressive malignant primary brain tumor characterized by a highly heterogeneous and immunosuppressive tumor microenvironment (TME). The symbiotic interactions between glioblastoma stem cells (GSCs) and tumor-associated macrophages (TAM) in the TME are critical for tumor progression. Here, we identified that IFI35, a transcriptional regulatory factor, plays both cell-intrinsic and cell-extrinsic roles in maintaining GSCs and the immunosuppressive TME.

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Background: Adjunctive newer antiseizure medications (ASMs) are being used in patients with treatment-resistant focal-onset seizures (FOS). An updated network meta-analysis (NMA) was necessary to compile evidence in this critical area.

Methods: We systematically searched PubMed, Embase, Cochrane Library, Web of Science, and Scopus from their inception until 17 January 2024, evaluating the efficacy, tolerability, and safety of rufinamide (RUF), brivaracetam (BRV), cenobamate (CNB), eslicarbazepine (ESL), lacosamide (LCM), retigabine (RTG), and perampanel (PER) as adjunctive treatments for FOS.

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TGA transcription factors (TFs), belonging to the D clade of the basic region leucine zipper (bZIP) family, exhibit a specific ability to recognize and bind to regulatory elements with TGACG as the core recognition sequence, enabling the regulation of target gene expression and participation in various biological regulatory processes. In plant growth and development, TGA TFs influence organ traits and phenotypes, including initial root length and flowering time. They also play a vital role in responding to abiotic stresses like salt, drought, and cadmium exposure.

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Preoperative MRI is an essential diagnostic and therapeutic reference for gliomas. This study aims to evaluate the prognostic aspect of a radiomics biomarker for glioma and further investigate its relationship with tumor microenvironment and macrophage infiltration. We covered preoperative MRI of 664 glioma patients from three independent datasets: Jiangsu Province Hospital (JSPH, n = 338), The Cancer Genome Atlas dataset (TCGA, n = 252), and Repository of Molecular Brain Neoplasia Data (REMBRANDT, n = 74).

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Purpose: The dynamic interplay between glioblastoma stem cells (GSC) and tumor-associated macrophages (TAM) sculpts the tumor immune microenvironment (TIME) and promotes malignant progression of glioblastoma (GBM). However, the mechanisms underlying this interaction are still incompletely understood. Here, we investigate the role of CXCL8 in the maintenance of the mesenchymal state of GSC populations and reprogramming the TIME to an immunosuppressive state.

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Background: Glioblastomas (GBMs) display striking dysregulation of metabolism to promote tumor growth. Glioblastoma stem cells (GSCs) adapt to regions of heterogeneous nutrient availability, yet display dependency on de novo cholesterol biosynthesis. The transcription factor Sterol Regulatory Element-Binding Protein 2 (SREBP2) regulates cholesterol biosynthesis enzymes and uptake receptors.

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Unlabelled: Radiotherapy is a major component of standard-of-care treatment for gliomas, the most prevalent type of brain tumor. However, resistance to radiotherapy remains a major concern. Identification of mechanisms governing radioresistance in gliomas could reveal improved therapeutic strategies for treating patients.

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Ethnopharmacological Relevance: Bamboos are perennial evergreen plants that belong to the subfamily Bambusoideae of the true grass family Poaceae, with more than thousands of species distributed around the world. They are used as a traditional medicine with demonstrated effects of anti-oxidation, free radical scavenging, anti-inflammatory, liver protection and ameliorating cognitive deficits. Bamboo leaf is mainly used for the treatment of atherosclerotic, diabetic and nervous system diseases.

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Unlabelled: Glioblastoma (GBM) is a complex ecosystem that includes a heterogeneous tumor population and the tumor-immune microenvironment (TIME), prominently containing tumor-associated macrophages (TAM) and microglia. Here, we demonstrated that β2-microglobulin (B2M), a subunit of the class I major histocompatibility complex (MHC-I), promotes the maintenance of stem-like neoplastic populations and reprograms the TIME to an anti-inflammatory, tumor-promoting state. B2M activated PI3K/AKT/mTOR signaling by interacting with PIP5K1A in GBM stem cells (GSC) and promoting MYC-induced secretion of transforming growth factor-β1 (TGFβ1).

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Article Synopsis
  • Hematopoietic stem/progenitor cells (HSPCs) develop from endothelial cells in the dorsal aorta of zebrafish embryos, influenced by changes in blood flow and shear stress.
  • * The study identifies heterogeneous hematopoietic endothelium primarily located at low shear stress areas, affecting HSPC production and movement.
  • * Findings suggest that low shear stress encourages HSPC development by increasing macrophage accumulation and matrix metalloproteinase (MMP) expression, thereby impacting the budding process.
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Cineraria () is an ornamental plant with pure colour and bicolour cultivars, widely used for landscaping. Anthocyanin biosynthesis influences coloration patterns in cineraria. However, how anthocyanins accumulate and distribute in cineraria is poorly understood.

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Background: PCSK9 gene expression is associated with biological processes such as lipid metabolism, glucose metabolism, and inflammation. In the present study, our primary objective was to assess the association between the single-nucleotide polymorphisms in the PCSK9 gene and type 2 diabetes in Uygur subjects, in Xinjiang, China.

Methods: We designed a case-control study including 662 patients diagnosed with T2DM and 1220 control subjects.

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We develop a method for lattice QCD calculation of the two-photon exchange contribution to the muonic-hydrogen Lamb shift. To demonstrate its feasibility, we present the first lattice calculation with a gauge ensemble at m_{π}=142  MeV. By adopting the infinite-volume reconstruction method along with an optimized subtraction scheme, we obtain with statistical uncertainty ΔE_{TPE}=-28.

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Article Synopsis
  • Long non-coding RNAs (lncRNAs), particularly MELTF-AS1, are crucial in the development of non-small cell lung cancer (NSCLC) and are linked to poor patient outcomes.
  • MELTF-AS1 is found to enhance tumor growth and spread by regulating cell functions, with its expression increased through copy number amplification and transcription factor SP1 activation.
  • The study highlights how MELTF-AS1 interacts with the RNA-binding protein YBX1 to promote transcription of the gene ANXA8, suggesting new avenues for diagnostics and treatments in NSCLC.
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Forensic firearm analysis concerns an attempt to determine if ammunition is associated with a specific firearm based on tool-marks produced by it. A feature-based method using the Scale Invariant Feature Transform (SIFT) and RANdom SAmple Consensus (RANSAC) integration algorithm had been suggested to allow the automated comparison of breech face impressions. In this paper, an estimation method is proposed to establish a correspondence function among the features of comparison impression pairs, aiming to further improve the robustness and repeatability of automated feature matching.

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