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  1. Article ; Online: In Regard to Chen et al.

    Tang, Feng / Liu, Zhenyuan / Wang, Zefen / Li, Zhiqiang

    International journal of radiation oncology, biology, physics

    2022  Volume 114, Issue 1, Page(s) 173

    MeSH term(s) Humans ; Signal Transduction
    Language English
    Publishing date 2022-07-04
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 197614-x
    ISSN 1879-355X ; 0360-3016
    ISSN (online) 1879-355X
    ISSN 0360-3016
    DOI 10.1016/j.ijrobp.2022.05.029
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Anchoring of Polymer Loops on Enzyme-Immobilized Mesoporous ZIF-8 Enhances the Recognition Selectivity of Angiotensin-Converting Enzyme Inhibitory Peptides.

    Wang, Zefen / Zhou, Qian / Liu, Siyuan / Liao, Dankui / Liu, Pengru / Lan, Xiongdiao

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 7

    Abstract: 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, ... ...

    Abstract 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. The excellent specificity and reusability of the obtained ACE@mZIF-8/PDA/DA-PEG
    MeSH term(s) Peptides/pharmacology ; Peptides/chemistry ; Angiotensin-Converting Enzyme Inhibitors/pharmacology ; Angiotensin-Converting Enzyme Inhibitors/chemistry ; Antihypertensive Agents/chemistry ; Peptidyl-Dipeptidase A ; Angiotensins
    Chemical Substances Peptides ; Angiotensin-Converting Enzyme Inhibitors ; Antihypertensive Agents ; Peptidyl-Dipeptidase A (EC 3.4.15.1) ; Angiotensins
    Language English
    Publishing date 2023-03-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28073117
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Current knowledge of protein palmitoylation in gliomas

    Tang, Feng / Liu, Zhenyuan / Chen, Xi / Yang, Jinzhou / Wang, Zefen / Li, Zhiqiang

    Mol Biol Rep. 2022 Nov., v. 49, no. 11 p.10949-10959

    2022  

    Abstract: 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 ... ...

    Abstract 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.g. palmitoylation). Our and other groups found that palmitoylational modification is essential for remaining intracellular homeostasis and cell survival. Disrupting the balance between palmitoylation and depalmitoylation affects glioma cell viability, apoptosis, invasion, self-renew and pyroptosis. In this review, we focused on summarizing roles and relevant mechanisms of protein palmitoylational modification in gliomas.
    Keywords cell viability ; glioma ; homeostasis ; palmitoylation ; prognosis ; pyroptosis
    Language English
    Dates of publication 2022-11
    Size p. 10949-10959.
    Publishing place Springer Netherlands
    Document type Article ; Online
    Note Review
    ZDB-ID 186544-4
    ISSN 1573-4978 ; 0301-4851
    ISSN (online) 1573-4978
    ISSN 0301-4851
    DOI 10.1007/s11033-022-07809-z
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Current knowledge of protein palmitoylation in gliomas.

    Tang, Feng / Liu, Zhenyuan / Chen, Xi / Yang, Jinzhou / Wang, Zefen / Li, Zhiqiang

    Molecular biology reports

    2022  Volume 49, Issue 11, Page(s) 10949–10959

    Abstract: 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 ... ...

    Abstract 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.g. palmitoylation). Our and other groups found that palmitoylational modification is essential for remaining intracellular homeostasis and cell survival. Disrupting the balance between palmitoylation and depalmitoylation affects glioma cell viability, apoptosis, invasion, self-renew and pyroptosis. In this review, we focused on summarizing roles and relevant mechanisms of protein palmitoylational modification in gliomas.
    MeSH term(s) Humans ; Lipoylation ; Glioma/metabolism ; Protein Processing, Post-Translational ; Apoptosis
    Language English
    Publishing date 2022-08-31
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 186544-4
    ISSN 1573-4978 ; 0301-4851
    ISSN (online) 1573-4978
    ISSN 0301-4851
    DOI 10.1007/s11033-022-07809-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Chronic microglial inflammation promotes neuronal lactate supply but impairs its utilization in primary rat astrocyte-neuron co-cultures.

    Wang, Yi / Li, Jie / Wang, Meng-Yue / Pan, Zhi-Yong / Li, Zhi-Qiang / Wang, Ze-Fen

    Biochemical and biophysical research communications

    2022  Volume 607, Page(s) 28–35

    Abstract: Neuronal activity is closely associated with energy metabolism. In addition to glucose, astrocyte-derived lactate serves as an energy source for neurons. Chronic inflammation is a common pathological event that is associated with aging and ... ...

    Abstract Neuronal activity is closely associated with energy metabolism. In addition to glucose, astrocyte-derived lactate serves as an energy source for neurons. Chronic inflammation is a common pathological event that is associated with aging and neurodegenerative diseases. However, the mechanisms underlying inflammation-induced neuronal injury are not fully understood. Both microglia and astrocytes participate in the regulation of neuronal functions; therefore, we used astrocyte-neuron co-cultures to investigate the effects of chronic microglial activation on neuronal lactate metabolism. Chronic low-grade inflammation was induced by repeated stimulation of primary rat microglia with low-dose lipopolysaccharide (LPS, 10 ng/mL). The medium from the LPS-activated microglia was collected and used to mimic the inflammatory environment in primary cultures. In monocultures exposed to an inflammatory environment, intracellular lactate decreased in neurons but increased in astrocytes. However, astrocyte-neuron co-cultures exhibited increased lactate levels in neurons and decreased lactate levels in astrocytes when exposed to an inflammatory environment. Inhibition of lactate transporters expressed on neurons or astrocytes reduced the intracellular lactate in co-cultured neurons exposed to inflammation, but not in those exposed to physiological conditions. Adenosine triphosphate (ATP) production was reduced in both mono-cultured and co-cultured neurons. These results indicate that a chronic inflammatory environment increases neuronal lactate supply by promoting the astrocyte-neuron lactate shuttle, but it impairs lactate oxidation in neurons. Additionally, chronic inflammation disrupts the neuronal cytoskeleton. This study highlights the importance of glial cells in regulating neuroenergetics and neuronal function and provides a comprehensive explanation for the neurotoxic effects of neuroinflammation.
    MeSH term(s) Animals ; Astrocytes/metabolism ; Cells, Cultured ; Coculture Techniques ; Inflammation/chemically induced ; Inflammation/metabolism ; Lactic Acid/metabolism ; Lipopolysaccharides/pharmacology ; Microglia/metabolism ; Neurons/metabolism ; Rats
    Chemical Substances Lipopolysaccharides ; Lactic Acid (33X04XA5AT)
    Language English
    Publishing date 2022-03-26
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.03.122
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: TERT mutations-associated alterations in clinical characteristics, immune environment and therapy response in glioblastomas.

    Tang, Feng / Chen, Xi / Liu, Jin-Sheng / Liu, Zhen-Yuan / Yang, Jin-Zhou / Wang, Ze-Fen / Li, Zhi-Qiang

    Discover. Oncology

    2023  Volume 14, Issue 1, Page(s) 148

    Abstract: 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 ... ...

    Abstract 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. Retrospective analysis and immunohistochemistry assay were used for investigating the local (including tumour cells, local immune cells, and seizures) and systemic (including circulating immune cells, coagulation-related functions, and prognosis) effects of TERT mutations. Besides, differences in genetic alterations and immunotherapy responses between TERT mutant and wild-type GBMs were also explored.
    Results: We found that TERT mutant and wild-type GBMs possessed similar initial clinic symptoms, circulating immune microenvironment and immunotherapy response. With respect to that in TERT wild-type GBMs, mutations in TERT resulted in higher levels of tumour-infiltrating neutrophils, prolonged coagulation time, worse chemotherapy response and poorer overall survival.
    Conclusion: Mutations in TERT alter the local immune environment and decrease the sensitivity of GBM to chemotherapy.
    Language English
    Publishing date 2023-08-11
    Publishing country United States
    Document type Journal Article
    ISSN 2730-6011
    ISSN (online) 2730-6011
    DOI 10.1007/s12672-023-00760-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: In situ embedding of glucose oxidase in amorphous ZIF-7 with high catalytic activity and stability and mechanism investigation.

    Liu, Siyuan / Liu, Jingxing / Wang, Zefen / Wu, Zhiqi / Wei, Yiliang / Liu, Pengru / Lan, Xiongdiao / Liao, Yexin / Lan, Ping

    International journal of biological macromolecules

    2023  Volume 242, Issue Pt 2, Page(s) 124806

    Abstract: 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 ... ...

    Abstract 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. SEM, TEM, XRD, and BET analyses confirmed that GOx was embedded in amorphous ZIF-7 with ∼5 wt% loading. Compared with free GOx, DA-PEG-DA/GOx@aZIF-7/PDA exhibited enhanced stability, excellent reusability, and promising potential for glucose detection. After 10 repetitions, the catalytic activity of DA-PEG-DA/GOx@aZIF-7/PDA can maintain 95.53 % ± 3.16 %. In understanding the in situ embedding of GOx in ZIF-7, the interaction of zinc ion and benzimidazole with GOx was studied by using molecular docking and multi-spectral methods. Results showed that zinc ions and benzimidazole had multiple binding sites on the enzyme, which induced the accelerated synthesis of ZIF-7 around the enzyme. During binding, the structure of the enzyme changes, but such changes hardly affect the activity of the enzyme. This study provides not only a preparation strategy of immobilized enzyme with high activity, high stability, and low enzyme leakage rate for glucose detection, but also a more comprehensive understanding of the formation of immobilized enzymes using the in situ embedding strategy.
    MeSH term(s) Glucose Oxidase/chemistry ; Molecular Docking Simulation ; Enzymes, Immobilized/chemistry ; Zinc ; Glucose/analysis ; Biosensing Techniques/methods
    Chemical Substances Glucose Oxidase (EC 1.1.3.4) ; poly(ethylene glycol)diacrylate ; Enzymes, Immobilized ; Zinc (J41CSQ7QDS) ; Glucose (IY9XDZ35W2)
    Language English
    Publishing date 2023-05-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.124806
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Anti-Vascular Endothelial Growth Factor Therapy Abolishes Glioma-Associated Endothelial Cell-Induced Tumor Invasion.

    Tang, Feng / Li, Feng-Ping / Huang, Xue-Tao / Wang, Guo-Hua / Wang, Ze-Fen / Li, Zhi-Qiang

    Journal of molecular neuroscience : MN

    2023  Volume 73, Issue 2-3, Page(s) 104–116

    Abstract: Tumor-remodeled endothelial cells not only facilitate the formation of tumor angiogenesis but also promote tumorigenesis. In this study, we aimed to explore the interaction between glioma-associated endothelial cells (GAEs) and glioma cells. We found ... ...

    Abstract Tumor-remodeled endothelial cells not only facilitate the formation of tumor angiogenesis but also promote tumorigenesis. In this study, we aimed to explore the interaction between glioma-associated endothelial cells (GAEs) and glioma cells. We found that different subtypes of glioma owned distinct GAE abundance. Glioma patients with high GAE abundance exhibited poor prognosis. Both the results of the bioinformatics analysis and the in vitro co-culture system assay revealed that GAE promoted glioma cell invasion. Besides, anti-vascular endothelial growth factor (VEGF) therapy partially abolished the effects of GAE on gliomas. Moreover, anti-VEGF therapy upregulated IL-2 expression in GAE, and exogenous IL-2 administration inhibits GAE-induced glioma cell invasion. Collectively, our present study provides a novel outstanding of the interaction between GAE and glioma cells.
    MeSH term(s) Humans ; Endothelial Growth Factors/pharmacology ; Brain Neoplasms/drug therapy ; Brain Neoplasms/pathology ; Endothelial Cells/metabolism ; Vascular Endothelial Growth Factor A/genetics ; Interleukin-2/pharmacology ; Glioma/drug therapy ; Glioma/metabolism ; Neovascularization, Pathologic/drug therapy ; Neovascularization, Pathologic/metabolism ; Cell Line, Tumor
    Chemical Substances Endothelial Growth Factors ; Vascular Endothelial Growth Factor A ; Interleukin-2
    Language English
    Publishing date 2023-01-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1043392-2
    ISSN 1559-1166 ; 0895-8696
    ISSN (online) 1559-1166
    ISSN 0895-8696
    DOI 10.1007/s12031-023-02099-x
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  9. Article ; Online: Local and systemic effects of IDH mutations on primary glioma patients.

    Tang, Feng / Wang, Dan-Wen / Xi, Chen / Yang, Jin-Zhou / Liu, Zhen-Yuan / Yu, Dong-Hu / Wang, Ze-Fen / Li, Zhi-Qiang

    Immunology

    2023  Volume 169, Issue 4, Page(s) 503–514

    Abstract: 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 ...

    Abstract 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. The results from our cohort showed that IDH mutant gliomas own a lower proliferating rate compared to that in wild-type gliomas. Patients with mutant IDH exhibited a higher frequency of seizures in both our cohort and the cohort from the meta-analysis. Mutations in IDH result in lower levels of intra-tumour but higher levels of circulating CD4+ and CD8+ T lymphocytes. Levels of neutrophils in both intra-tumour and circulating blood were lower in IDH mutant gliomas. Moreover, IDH mutant glioma patients receiving radiotherapy in combination with chemotherapy exhibited better overall survival with respect to radiotherapy alone. Mutations in IDH alters the local and circulating immune microenvironment, and increases the sensitivity of tumour cell to chemotherapy.
    MeSH term(s) Adult ; Humans ; Isocitrate Dehydrogenase/genetics ; Brain Neoplasms/genetics ; Brain Neoplasms/pathology ; Retrospective Studies ; Glioma/genetics ; Glioma/pathology ; Mutation ; Tumor Microenvironment/genetics
    Chemical Substances Isocitrate Dehydrogenase (EC 1.1.1.41)
    Language English
    Publishing date 2023-04-13
    Publishing country England
    Document type Meta-Analysis ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80124-0
    ISSN 1365-2567 ; 0019-2805 ; 0953-4954
    ISSN (online) 1365-2567
    ISSN 0019-2805 ; 0953-4954
    DOI 10.1111/imm.13649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Chronic microglial inflammation promotes neuronal lactate supply but impairs its utilization in primary rat astrocyte-neuron co-cultures

    Wang, Yi / Li, Jie / Wang, Meng-Yue / Pan, Zhi-Yong / Li, Zhi-Qiang / Wang, Ze-Fen

    Biochemical and biophysical research communications. 2022 Mar. 23,

    2022  

    Abstract: Neuronal activity is closely associated with energy metabolism. In addition to glucose, astrocyte-derived lactate serves as an energy source for neurons. Chronic inflammation is a common pathological event that is associated with aging and ... ...

    Abstract Neuronal activity is closely associated with energy metabolism. In addition to glucose, astrocyte-derived lactate serves as an energy source for neurons. Chronic inflammation is a common pathological event that is associated with aging and neurodegenerative diseases. However, the mechanisms underlying inflammation-induced neuronal injury are not fully understood. Both microglia and astrocytes participate in the regulation of neuronal functions; therefore, we used astrocyte-neuron co-cultures to investigate the effects of chronic microglial activation on neuronal lactate metabolism. Chronic low-grade inflammation was induced by repeated stimulation of primary rat microglia with low-dose lipopolysaccharide (LPS, 10 ng/mL). The medium from the LPS-activated microglia was collected and used to mimic the inflammatory environment in primary cultures. In monocultures exposed to an inflammatory environment, intracellular lactate decreased in neurons but increased in astrocytes. However, astrocyte-neuron co-cultures exhibited increased lactate levels in neurons and decreased lactate levels in astrocytes when exposed to an inflammatory environment. Inhibition of lactate transporters expressed on neurons or astrocytes reduced the intracellular lactate in co-cultured neurons exposed to inflammation, but not in those exposed to physiological conditions. Adenosine triphosphate (ATP) production was reduced in both mono-cultured and co-cultured neurons. These results indicate that a chronic inflammatory environment increases neuronal lactate supply by promoting the astrocyte-neuron lactate shuttle, but it impairs lactate oxidation in neurons. Additionally, chronic inflammation disrupts the neuronal cytoskeleton. This study highlights the importance of glial cells in regulating neuroenergetics and neuronal function and provides a comprehensive explanation for the neurotoxic effects of neuroinflammation.
    Keywords adenosine triphosphate ; astrocytes ; coculture ; cytoskeleton ; energy ; energy metabolism ; glucose ; inflammation ; lactic acid ; lipopolysaccharides ; neurons ; neurotoxicity ; oxidation ; rats ; research
    Language English
    Dates of publication 2022-0323
    Publishing place Elsevier Inc.
    Document type Article
    Note Pre-press version
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.03.122
    Database NAL-Catalogue (AGRICOLA)

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