Publications by authors named "Zefen Wang"

Tertiary lymphoid structures (TLSs) frequently occur at sites of chronic inflammation. A more advanced stage of multiple sclerosis (MS) has been associated with certain TLSs. However, tumor-associated TLSs have been shown to correlate with a greater treatment response rate and a better prognosis in glioma mouse models.

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  • * Research involving bioinformatics, cell line experiments, and various assays revealed that suppressing HOTAIR restored sensitivity to TMZ in resistant cells, whereas overexpressing it in sensitive cells induced resistance.
  • * The study identified a link between HOTAIR and the Wnt/β-catenin signaling pathway and suggested that methotrexate could enhance TMZ effectiveness in high HOTAIR expressing GBM by reducing both HOTAIR and β-c
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  • Telmisartan is an AT1R blocker that shows potential anti-tumor effects, particularly in glioma, but traditional high doses are needed for direct effects on tumor cells in vitro.
  • In co-culture experiments, low doses of telmisartan inhibited glioma cell growth and migration, primarily by reducing IL-6 levels in astrocytes, which are crucial for glioma progression.
  • The anti-glioma action of telmisartan is linked to its PPARγ agonistic properties, rather than its AT1R blocking ability, suggesting it may be a promising add-on treatment for glioma patients, especially those with high blood pressure.
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  • - The study focuses on improving the identification of IDH mutations in glioma patients, which is crucial for making therapeutic decisions.
  • - It introduces a new method combining MRI scans analyzed by a Transformer neural network with a CRISPR-based gene detection system, achieving high accuracy rates for IDH mutation detection.
  • - This integrated approach not only enhances diagnostic precision but also helps guide treatment strategies such as biopsies and radiation therapy to improve outcomes for patients with glioma.
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  • Glioblastoma (GBM) is a complex and aggressive brain tumor, making targeted treatments challenging due to its heterogeneous nature.
  • This study utilized single-cell sequencing on samples from four GBM patients to map out cellular diversity, identifying new cell types and biomarkers that could help in precision medicine.
  • Findings revealed distinct tumor microenvironments and important cell clusters associated with tumor growth, suggesting potential targets for future therapies to improve treatment effectiveness.
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Background: Gliomas are the deadliest malignant tumors of the adult central nervous system. We previously discovered that beta2-microglobulin (B2M) is abnormally upregulated in glioma tissues and that it exerts a range of oncogenic effects. Besides its tissue presence, serum B2M levels serve as biomarkers for various diseases.

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Central nervous system (CNS) disorders represent the leading cause of disability and the second leading cause of death worldwide, and impose a substantial economic burden on society. In recent years, emerging evidence has found that beta2 -microglobulin (B2M), a subunit of major histocompatibility complex class I (MHC-I) molecules, plays a crucial role in the development and progression in certain CNS diseases. On the one hand, intracellular B2M was abnormally upregulated in brain tumors and regulated tumor microenvironments and progression.

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Unlabelled: OBJECTIVE TERT: is the most frequently mutated gene in adult glioblastomas (GBMs) defined by the 2021 World Health Organization classification system. The present study aims to explore differences in clinical characteristics and immune microenvironment between TERT mutant and wild-type GBM.

Methods: Three GBM-related cohorts consisting of 205 GBM patients in our cohort, 463 GBM patients without immune checkpoint inhibitor(ICI) therapy and 1465 tumour patients (including 92 GBM cases) receiving ICI treatment in the MSK cohort were included.

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Astrocytes are crucially involved in neuroinflammation. Activated astrocytes exhibit at least two phenotypes, A1 (neurotoxic) and A2 (neuroprotective). The A1 phenotype is the major reactive astrocyte phenotype involved in aging and neurodegenerative diseases.

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Glucose oxidase (GOx) has a great application potential in the determination of glucose concentration. However, its sensitivity to the environment and poor recyclability limited its broader application. Herein, with the assistance of DA-PEG-DA, a novel immobilized GOx based on amorphous Zn-MOFs (DA-PEG-DA/GOx@aZIF-7/PDA) was developed to impart excellent properties to the enzyme.

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Background: Glioma is the most common and aggressive tumor in the adult brain. Recent studies have indicated that Zinc finger DHHC-type palmitoyltransferases (ZDHHCs) play vital roles in regulating the progression of glioma. ZDHHC15, a member of the ZDHHCs family, participates in various physiological activities in the brain.

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Adult gliomas are divided into isocitrate dehydrogenase (IDH) wild-type and IDH mutant subtypes according to the new 2021 World Health Organization classification system. However, the local and systemic effects of IDH mutations on primary glioma patients are not well illustrated. Retrospective analysis, immune-cell infiltration analysis, meta-analysis, and immunohistochemistry assay were applied in the present study.

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Immobilized angiotensin-converting enzyme (ACE) is a promising material for the rapid screening of antihypertensive drugs, but the nonspecific adsorption is a serious problem in separation processes involving complex biological products. In this study, triblock copolymers with dopamine (DA) block as anchors and PEG block as the main body (DA-PEGx-DA) were attached to an immobilized ACE (ACE@mZIF-8/PDA, AmZP) surface via the "grafting to" strategy which endowed them with anti-nonspecific adsorption. The influence of DA-PEGx-DA chain length on nonspecific adsorption was confirmed.

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  • - The study investigates how glioma-associated endothelial cells (GAEs) interact with glioma cells and their role in tumor growth and blood vessel formation.
  • - Results show that glioma subtypes differ in GAE levels, and higher GAE abundance is linked to worse outcomes for patients.
  • - Anti-VEGF therapy can reduce GAE's effects on gliomas and increase IL-2 levels, which can help decrease glioma cell invasion driven by GAEs.
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Inflammation is related to cancer. The systemic immune-inflammation index (SII) has been linked to the prognosis of many types of cancer. The present study aimed to determine the prognostic value of the SII in glioblastoma (GBM) patients based on meta-analysis and single-center retrospective analysis.

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Background And Objective: Glioma is the most common intracranial primary malignant tumor, and half of it is glioblastoma. Despite receiving the standard treatment, the prognosis of glioblastoma is still poor and its 5-year survival rate in China is only 9%. In addition, new targeted and immunotherapy therapy and tumor treating fields also have certain curative effects on glioblastoma.

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Malignant tumor cells can obtain proliferative benefits from deviant metabolic networks. Emerging evidence suggests that lipid metabolism are dramatically altered in gliomas and excessive fatty acd accumulation is detrimentally correlated with the prognosis of glioma patients. Glioma cells possess remarkably high levels of free fatty acids, which, in turn, enhance post-translational modifications (e.

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  • Inflammation is linked to cancer, and this study assessed hematological inflammatory markers as prognostic indicators in glioblastoma multiforme (GBM) patients.
  • A retrospective analysis involved 99 patients with lower-grade gliomas and 88 GBM patients, focusing on various blood markers to identify those influencing survival rates.
  • Results showed that specific ratios like NLR, LMR, and AGR significantly correlated with poor survival, with an AGR-NLR score being the most effective tool for predicting patient outcomes.
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Isocitrate dehydrogenase (IDH) is an essential metabolic enzyme in the tricarboxylic acid cycle (TAC). The high mutation frequency of the IDH gene plays a complicated role in gliomas. In addition to affecting gliomas directly, mutations in IDH can also alter their immune microenvironment and can change immune-cell function in direct and indirect ways.

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High immune-cell infiltration in glioblastomas (GBMs) leads to immunotherapy resistance. Emerging evidence has shown that zinc finger Asp-His-His-Cyc-type (ZDHHC) palmitoyl transferases participate in regulating tumor progression and the immune microenvironment. In the present study, a large cohort of patients with gliomas from The Cancer Genome Atlas (TCGA) and Rembrandt databases was included to perform omics analysis of ZDHHCs in gliomas.

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  • Neuronal activity relies on energy sources like glucose and lactate, with lactate being provided by astrocytes, but understanding how inflammation affects this process in neurons remains unclear.
  • Researchers simulated chronic low-grade inflammation by activating microglia and observed that while inflammation decreased lactate in neurons and increased it in astrocytes in isolated cultures, co-cultured systems showed the opposite effect.
  • The study suggests that chronic inflammation enhances lactate supply to neurons via an astrocyte-neuron lactate shuttle but hinders the neurons' ability to use lactate effectively, impacting energy production and neuronal structure.
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Two novel adsorbents of CaAl-LDHs and sodium dodecyl benzene sulfonate (SDBS) intercalated CaAl-LDHs (SDBS-CaAl-LDHs) were successfully prepared by co-precipitation. The main composition and physical properties of two samples were characterized by XRD, XPS, FT-IR, TG, and SEM. Batch adsorption experiments were conducted to study the effect of pH, adsorption time, and initial concentration of Pb.

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The interaction between angiotensin I-converting enzyme (ACE) and the inhibitory peptide KNFL from Wakame was explored using isothermal titration calorimetry, multiple spectroscopic techniques and molecular dynamics simulations, and an inhibition model was established based on free energy binding theory. The experiments revealed that the binding of KNFL to ACE was a spontaneous exothermic process driven by enthalpy and entropy and occurred via multiple binding sites to form stable complexes. The complexes may be formed through multiple steps of inducing fit and conformational selection.

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  • The study explores the origins of secondary gliosarcoma (SGS) that develops after treatment for primary glioblastoma multiforme (GBM), focusing on the uncharacterized clonal evolution of its sarcomatous components.
  • Researchers used whole-genome and deep-whole-exome sequencing to analyze mutations in both GBM and SGS, identifying specific mutations shared between the two tumors, particularly in tumor-suppressor genes NF1 and TP53.
  • Findings suggest that SGS likely arises from a single clonal origin influenced by mutations due to radiation therapy, indicating a causal link between radiotherapy and the emergence of SGS sarcomatous components.
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