LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 443

Search options

  1. Article: 嵌合抗原受体T细胞在儿童复发难治性急性淋巴细胞白血病中的研究进展.

    Wei, Nan / Chen, Tian-Ping

    Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics

    2023  Volume 25, Issue 2, Page(s) 210–216

    Abstract: At present, the treatment of refractory/relapsed acute lymphoblastic leukemia is still in a difficult situation, and even if the intensity of chemotherapy is increased or it is combined with hematopoietic stem cell transplantation, some children may have ...

    Title translation Recent research on chimeric antigen receptor T cells in children with refractory/relapsed acute lymphoblastic leukemia.
    Abstract At present, the treatment of refractory/relapsed acute lymphoblastic leukemia is still in a difficult situation, and even if the intensity of chemotherapy is increased or it is combined with hematopoietic stem cell transplantation, some children may have a poor prognosis and a short survival time. Chimeric antigen receptor T-cell (CAR-T) immunotherapy uses genetically engineered T cells and does not rely on the human leukocyte antigen pathway to recognize tumor-specific antigens, and then CAR-T cells bind to target antigen cells to trigger immune response, thereby exerting a sustained anti-leukemia effect. As the most rapidly developed tumor immunotherapy, major breakthroughs have been made for CAR-T cells in the treatment of various hematological tumors, but there still lacks a comprehensive system for the research, development, and production of CAR-T cells and standardized diagnosis and treatment protocols in China. This article reviews the recent research on CAR-T cells in children with refractory/relapsed acute lymphoblastic leukemia.
    MeSH term(s) Humans ; Child ; Receptors, Chimeric Antigen ; Immunotherapy ; China ; Hematopoietic Stem Cell Transplantation ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy
    Chemical Substances Receptors, Chimeric Antigen
    Language Chinese
    Publishing date 2023-03-14
    Publishing country China
    Document type Review ; English Abstract ; Journal Article
    ISSN 1008-8830
    ISSN 1008-8830
    DOI 10.7499/j.issn.1008-8830.2210056
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: METTL3-mediated HOTAIRM1 promotes vasculogenic mimicry icontributionsn glioma via regulating IGFBP2 expression.

    Wu, Zhangyi / Wei, Nan

    Journal of translational medicine

    2023  Volume 21, Issue 1, Page(s) 855

    Abstract: Background: HOTAIRM1 is revealed to facilitate the malignant progression of glioma. Vasculogenic mimicry (VM) is critically involved in glioma progression. Nevertheless, the molecular mechanism of HOTAIRM1 in regulating glioma VM formation remains ... ...

    Abstract Background: HOTAIRM1 is revealed to facilitate the malignant progression of glioma. Vasculogenic mimicry (VM) is critically involved in glioma progression. Nevertheless, the molecular mechanism of HOTAIRM1 in regulating glioma VM formation remains elusive. Thus, we attempted to clarify the role and mechanism of HOTAIRM1 in VM formation in glioma.
    Methods: qRT-PCR and western blot assays were used to evaluate the gene and protein expression levels of HOTAIRM1 in glioma patient tissue samples and cell lines. The role of HOTAIRM1 in glioma cell progression and VM formation was explored using a series of function gain-and-loss experiments. RNA-binding protein immunoprecipitation (RIP), RNA pull-down, and mechanism experiments were conducted to assess the interaction between HOTAIRM1/METTL3/IGFBP2 axis. Furthermore, rescue assays were conducted to explore the regulatory function of HOTAIRM1/METTL3/IGFBP2 in glioma cell cellular processes and VM formation.
    Results: We found that HOTAIRM1 presented up-regulation in glioma tissues and cells and overexpression of HOTAIRM1 facilitated glioma cell proliferation, migration, invasion, and VM formation. Furthermore, overexpression of HOTAIRM1 promoted glioma tumor growth and VM formation capacity in tumor xenograft mouse model. Moreover, HOTAIRM1 was demonstrated to interact with IGFBP2 and positively regulated IGFBP2 expression. IGFBP2 was found to promote glioma cell malignancy and VM formation. Mechanistically, METTL3 was highly expressed in glioma tissues and cells and was bound with HOTAIRM1 which stabilized HOTAIRM1 expression. Rescue assays demonstrated that METTL3 silencing counteracted the impact of HOTAIRM1 on glioma cell malignancy and VM formation capacity.
    Conclusion: HOTAIRM1, post-transcriptionally stabilized by METTL3, promotes VM formation in glioma via up-regulating IGFBP2 expression, which provides a new direction for glioma therapy.
    MeSH term(s) Animals ; Humans ; Mice ; Cell Line, Tumor ; Cell Proliferation/genetics ; Glioma/pathology ; Methyltransferases ; Neovascularization, Pathologic/pathology ; RNA, Long Noncoding/genetics ; Insulin-Like Growth Factor Binding Protein 2/genetics
    Chemical Substances Methyltransferases (EC 2.1.1.-) ; METTL3 protein, human (EC 2.1.1.62) ; IGFBP2 protein, human ; long non-coding RNA HOTAIRM1, human ; RNA, Long Noncoding ; Insulin-Like Growth Factor Binding Protein 2
    Language English
    Publishing date 2023-11-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2118570-0
    ISSN 1479-5876 ; 1479-5876
    ISSN (online) 1479-5876
    ISSN 1479-5876
    DOI 10.1186/s12967-023-04624-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: Pulmonary infection with

    Wang, Chaoyang / Wei, Nan / Zhang, Moyuan / Zhang, Xiaoju

    Frontiers in medicine

    2024  Volume 11, Page(s) 1357714

    Abstract: Background: Aeromonas dhakensis: Case presentation: A patient with acute T lymphoblastic leukemia experienced myelosuppression after chemotherapy, developed a secondary pulmonary infection with : Discussion: Among pulmonary infectious pathogens, ...

    Abstract Background: Aeromonas dhakensis
    Case presentation: A patient with acute T lymphoblastic leukemia experienced myelosuppression after chemotherapy, developed a secondary pulmonary infection with
    Discussion: Among pulmonary infectious pathogens,
    Language English
    Publishing date 2024-04-17
    Publishing country Switzerland
    Document type Case Reports
    ZDB-ID 2775999-4
    ISSN 2296-858X
    ISSN 2296-858X
    DOI 10.3389/fmed.2024.1357714
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Coupling a New Version of the Common Land Model (CoLM) to the Global/Regional Assimilation and Prediction System (GRAPES): Implementation, Experiment, and Preliminary Evaluation

    Yuan, Zhenyi / Wei, Nan

    Land. 2022 May 24, v. 11, no. 6

    2022  

    Abstract: Land surface processes can significantly influence weather and climate. The Common Land Model version 2005 (CoLM2005) has been coupled to the Global Forecast System of the Global/Regional Assimilation and Prediction System (GRAPES_GFS), which is ... ...

    Abstract Land surface processes can significantly influence weather and climate. The Common Land Model version 2005 (CoLM2005) has been coupled to the Global Forecast System of the Global/Regional Assimilation and Prediction System (GRAPES_GFS), which is independently developed by the China Meteorological Administration. Since a new version of CoLM has been developed (CoLM2014) with updated soil basic data and parts of hydrological processes, we coupled CoLM2014 with GRAPES_GFS to investigate whether the land surface model can help to improve the prediction skill of the weather forecast model. The forecast results were evaluated against global validation datasets at different forecasting lengths and over various regions. The results demonstrate that GRAPES_GFS coupled with CoLM2005 and CoLM2014 can both well reproduce the spatial patterns and magnitude of atmospheric variables, and the effective predictable lengths of time are up to 3 days on the global scale and even up to 6 days on regional scales. Moreover, the GRAPES_GFS coupled with CoLM2014 outperforms the original one in predicting atmospheric variables. In addition, GRAPES_GFS coupled with both versions of CoLM reproduce acceptably accurate spatial distribution and magnitude of land variables. GRAPES_GFS coupled with CoLM2014 significantly improves the forecast of land surface state variables compared to the one coupled with CoLM2005, and the improvement signal is more notable than that in atmospheric variables. Overall, this study shows that CoLM is suitable for coupling with GRAPES_GFS, and the improvement of the land surface model in a weather forecast model can significantly improve the prediction skill of both atmospheric and land variables.
    Keywords climate ; common lands ; data collection ; hydrology ; land improvement ; models ; prediction ; soil ; weather forecasting ; China
    Language English
    Dates of publication 2022-0524
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2682955-1
    ISSN 2073-445X
    ISSN 2073-445X
    DOI 10.3390/land11060770
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article ; Online: Prognostic and onco-immunological value of immune-related eRNAs-driven genes in lung adenocarcinoma.

    Wu, Xuan / Zhao, Xingru / Zhou, Chao / Wei, Nan / Xu, Zhiwei / Zhang, Xiaoju

    Journal of cancer research and clinical oncology

    2024  Volume 150, Issue 4, Page(s) 188

    Abstract: Background: We aimed to comprehensively analyze the clinical value of immune-related eRNAs-driven genes in lung adenocarcinoma (LUAD) and find the potential biomarkers for prognosis and therapeutic response to improve the survival of this malignant ... ...

    Abstract Background: We aimed to comprehensively analyze the clinical value of immune-related eRNAs-driven genes in lung adenocarcinoma (LUAD) and find the potential biomarkers for prognosis and therapeutic response to improve the survival of this malignant disease.
    Materials and methods: Pearson's correlation analysis was performed to identify the immune-related eRNAs-driven genes. Cox regression and least absolute shrinkage and selection operator (LASSO) analyses were used to construct this prognostic risk signature. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were used to investigate the underlying molecular mechanism. The single sample gene set enrichment analysis (ssGSEA) algorithm was conducted to evaluate the immune status based on the signature. The quantitative real-time PCR (qRT-PCR) analysis was performed to evaluate the expression value of the signature genes between LUAD tissues and adjacent lung tissues.
    Results: Five immune-related eRNAs-driven genes (SHC1, GDF10, CCL14, FYN, and NOD1) were identified to construct a prognostic risk signature with favorable predictive capacity. The patients with high-risk scores based on the signature were significantly associated with the malignant clinical features compared with those with low-risk scores. Kaplan-Meier analysis demonstrated that the sample in the low-risk group had a prolonged survival compared with those in the high-risk group. This risk signature was validated to have a promising predictive capacity and reliability in diverse clinical situations and independent cohorts. The functional enrichment analysis demonstrated that humoral immune response and intestinal immune network for IgA production pathway might be the underlying molecular mechanism related to the signature. The proportion of the vast majority of immune infiltrating cells in the high-risk group was significantly lower than that in the low-risk group, and the immunotherapy response rate in the low-risk group was significantly higher than that in the high-risk group. Moreover, BI-2536, sepantronium bromide, and ULK1 were the potential drugs for the treatment of patients with higher risk scores. Finally, the experiment in vivo and database analysis indicated that CCL14, FYN, NOD1, and GDF10 are the potential LUAD suppressor and SHC1 is a potential treatment target for LUAD.
    Conclusion: Above all, we constructed a prognostic risk signature with favorable predictive capacity in LUAD, which was significantly associated with malignant features, immunosuppressive tumor microenvironment, and immunotherapy response and may provide clinical benefit in clinical decisions.
    MeSH term(s) Humans ; Prognosis ; Enhancer RNAs ; Reproducibility of Results ; Adenocarcinoma of Lung/genetics ; Lung Neoplasms/genetics ; Tumor Microenvironment
    Chemical Substances Enhancer RNAs
    Language English
    Publishing date 2024-04-11
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 134792-5
    ISSN 1432-1335 ; 0171-5216 ; 0084-5353 ; 0943-9382
    ISSN (online) 1432-1335
    ISSN 0171-5216 ; 0084-5353 ; 0943-9382
    DOI 10.1007/s00432-024-05687-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: CD146 Promotes EMT-Mediated Migration and Invasion of NSCLC via PI3K/Akt Signaling Pathway.

    Wei, Nan / Wu, Xuan / Yu, Yi / Zhou, Huanhuan / Cui, Kai / Zhao, Xingru / Zhang, Xiaoju

    Frontiers in bioscience (Landmark edition)

    2024  Volume 29, Issue 4, Page(s) 140

    Abstract: Background: Recurrence and metastasis are the main causes of non-small cell lung cancer (NSCLC)-related death. CD146 has been identified as a potential risk factor for poor prognosis, closely related to the distant metastasis and drug resistance in ... ...

    Abstract Background: Recurrence and metastasis are the main causes of non-small cell lung cancer (NSCLC)-related death. CD146 has been identified as a potential risk factor for poor prognosis, closely related to the distant metastasis and drug resistance in various cancers. However, the clinical significance of CD146 in NSCLC requires further investigation.
    Materials and methods: This study explored the correlation between CD146 expression and clinical variables using tumor tissue samples collected from our hospital. CD146 expression levels in NSCLC cell lines and tissues were assessed and compared using immunohistochemistry, real-time polymerase chain reaction (RT-qPCR), flow cytometry, and western blot analysis. The invasion and migration capabilities of tumor cells were determined using transwell and wound healing assays. The levels of proteins related to epithelial-mesenchymal transition (EMT) as well as the underlying PI3K/Akt signaling pathway was measured by western blotting.
    Results: We discovered that CD146 expression is significantly associated with the EMT signaling pathway. High CD146 expression predicted lymph node metastasis, metastasis to distant organs, advanced Tumor, Node, Metastasis (TNM) staging, and poor survival in NSCLC patients. Wound healing and transwell assays showed that knocking down CD146 significantly suppressed cell migration along with cell invasion in NSCLC, whereas overexpressing CD146 notably enhanced these processes. Western blot analysis revealed significantly reduced levels of N-cadherin, vimentin, snail, twist, PI3K, and AKT phosphorylation in shCD146 H460 cells compared to vector control cells. Treatment with PI3K inhibitor PI3K-IN-1 increased E-cadherin expression levels but reduced N-cadherin, Twist, Vimentin, PI3K, and AKT phosphorylation levels in pcDNA3.1-CD146 A549 cells compared with the vector control cells.
    Conclusions: CD146 expression acts as a prognostic risk factor for adverse outcomes in NSCLC, promoting invasion and metastasis by activating the EMT through the PI3K/Akt signaling pathway. These findings underscore the potential therapeutic strategies targeting CD146, offering new treatment options for NSCLC patients, especially those at risk of metastasis.
    MeSH term(s) Humans ; Carcinoma, Non-Small-Cell Lung/metabolism ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Non-Small-Cell Lung/pathology ; Epithelial-Mesenchymal Transition/genetics ; CD146 Antigen/metabolism ; CD146 Antigen/genetics ; Proto-Oncogene Proteins c-akt/metabolism ; Cell Movement/genetics ; Phosphatidylinositol 3-Kinases/metabolism ; Lung Neoplasms/genetics ; Lung Neoplasms/metabolism ; Lung Neoplasms/pathology ; Signal Transduction ; Male ; Female ; Middle Aged ; Neoplasm Invasiveness ; Cell Line, Tumor ; A549 Cells
    Chemical Substances CD146 Antigen ; Proto-Oncogene Proteins c-akt (EC 2.7.11.1) ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; MCAM protein, human
    Language English
    Publishing date 2024-04-29
    Publishing country Singapore
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2704569-9
    ISSN 2768-6698 ; 2768-6698
    ISSN (online) 2768-6698
    ISSN 2768-6698
    DOI 10.31083/j.fbl2904140
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Effects of Dexamethasone on Postoperative Glycemic Control in Patients After Primary Total Joint Arthroplasty: A Randomized Double-Blind Controlled Trial.

    Liu, Xiao-Yang / Mou, Ping / Cao, Jian / Wang, Hao-Yang / Zeng, Wei-Nan / Zhou, Zong-Ke

    The Journal of arthroplasty

    2024  

    Abstract: Background: In patients undergoing total joint arthroplasty, the use of dexamethasone (DEX) may cause perioperative blood glucose (BG) disorders, leading to complications even in patients who do not have diabetes. We aimed to evaluate the effects of ... ...

    Abstract Background: In patients undergoing total joint arthroplasty, the use of dexamethasone (DEX) may cause perioperative blood glucose (BG) disorders, leading to complications even in patients who do not have diabetes. We aimed to evaluate the effects of different DEX doses on perioperative BG levels.
    Methods: A total of 135 patients who do not have diabetes were randomized into three groups: preoperative intravenous (IV) injection of normal saline (Group A, the placebo group), preoperative IV injection of 10 mg DEX (Group B), and preoperative IV injection of 20 mg DEX (Group C). Postoperative fasting BG (FBG) levels were designated as the primary outcome, while postoperative postprandial BG (PBG) levels were assigned as the secondary outcome. The incidence of complications was recorded. We also investigated the risk factors for FBG ≥ 140 mg/dL and PBG ≥ 180 mg/dL.
    Results: The FBG levels were higher in Groups B and C than in Group A on postoperative days (PODs) 0 and 1. The PBG levels were lower for Groups A and B compared to Group C on POD 1. No differences in FBG or PBG were detected beyond POD 1. Elevated preoperative glycosylated hemoglobin A1c levels increased the risk of FBG ≥ 140 mg/dL and PBG ≥ 180 mg/dL, respectively. However, preoperative IV injection of DEX was not associated with FBG ≥ 140 mg/dL or PBG ≥ 180 mg/dL. No differences were found in postoperative complications among the three groups.
    Conclusions: The preoperative IV administration of 10 or 20 mg DEX in patients who do not have diabetes showed transient effects on postoperative BG after total joint arthroplasty. The preoperative glycosylated hemoglobin A1c level threshold (regardless of the administration or dosage of DEX) that increased the risk for the occurrence of FBG ≥ 140 mg/dL and PBG ≥ 180 mg/dL was 5.75 and 5.85%, respectively.
    Language English
    Publishing date 2024-04-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632770-9
    ISSN 1532-8406 ; 0883-5403
    ISSN (online) 1532-8406
    ISSN 0883-5403
    DOI 10.1016/j.arth.2024.04.030
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Analysis of

    Chen, Tianping / Wei, Nan / Lv, Wenxiu / Qu, Lijun / Liu, Hongjun

    Translational pediatrics

    2023  Volume 12, Issue 1, Page(s) 56–67

    Abstract: Background: The rat sarcoma virus (: Methods: We retrospectively analyzed clinical characteristics, treatment, and outcomes of 93 ALL children during first induction chemotherapy in Anhui Provincial Children's Hospital under the Chinese Children's ... ...

    Abstract Background: The rat sarcoma virus (
    Methods: We retrospectively analyzed clinical characteristics, treatment, and outcomes of 93 ALL children during first induction chemotherapy in Anhui Provincial Children's Hospital under the Chinese Children's Leukemia Group-acute lymphoblastic leukemia 2018 (CCLG-ALL-2018). All genomic DNA samples were obtained from bone marrow mononuclear cells upon new diagnosis.
    Results: Of 93 ALL children, 26 (27.9%) were positive for
    Conclusions: Newly diagnosed ALL in children with
    Language English
    Publishing date 2023-01-13
    Publishing country China
    Document type Journal Article
    ZDB-ID 2901309-4
    ISSN 2224-4344 ; 2224-4344 ; 2224-4336
    ISSN (online) 2224-4344
    ISSN 2224-4344 ; 2224-4336
    DOI 10.21037/tp-22-683
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Numerical Study on the Optimal Thermally Affected Region of a Buried Oil Pipeline.

    Xie, Hanyu / Li, Changjun / Wei, Nan / Zhang, Caigong / He, Jie

    ACS omega

    2023  Volume 8, Issue 30, Page(s) 27761–27775

    Abstract: Crude oil pipeline transportation is usually a closed process under a certain depth of burial, and the condition of oil in the pipeline changes with the continuous decline of temperature during the transportation process. The safety and energy ... ...

    Abstract Crude oil pipeline transportation is usually a closed process under a certain depth of burial, and the condition of oil in the pipeline changes with the continuous decline of temperature during the transportation process. The safety and energy consumption of pipeline transportation are closely related to the accurate prediction of oil temperature. It is a popular technique to use the thermally affected region to overcome the problem of an unclosed calculation domain caused by the semi-infinite soil around the pipeline. However, there is no clear and unified guidance on the thermally affected region at present, and improper region size may lead to a loss of the accuracy of the pipeline system. Therefore, our study answers two questions about the optimal form of the thermally affected region and its economic scope of application. The coupled solution of heat transfer and flow in a tridimensional numerical model is carried out, and the thermodynamic influences of the geometric shape and range of the thermally affected region on the buried pipeline system are investigated. The results show that the rectangular region is more suitable for the modeling of buried oil pipelines, and a region with 16 m width and 9 m height is recommended for the conventional case.
    Language English
    Publishing date 2023-07-18
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c03945
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Analysis and prediction of improved SEIR transmission dynamics model: taking the second outbreak of COVID-19 in Italy as an example.

    Lu, Ming / Zheng, Xu-Yang / Jia, Wei-Nan / Tian, Chun-Zhi

    Frontiers in public health

    2023  Volume 11, Page(s) 1223039

    Abstract: This study aimed to predict the transmission trajectory of the 2019 Corona Virus Disease (COVID-19) and analyze the impact of preventive measures on the spread of the epidemic. Considering that tracking a long-term epidemic trajectory requires ... ...

    Abstract This study aimed to predict the transmission trajectory of the 2019 Corona Virus Disease (COVID-19) and analyze the impact of preventive measures on the spread of the epidemic. Considering that tracking a long-term epidemic trajectory requires explanatory modeling with more complexities than short-term predictions, an improved Susceptible-Exposed-Infected-Removed (SEIR) transmission dynamic model is established. The model depends on defining various parameters that describe both the virus and the population under study. However, it is likely that several of these parameters will exhibit significant variations among different states. Therefore, regression algorithms and heuristic algorithms were developed to effectively adapt the population-dependent parameters and ensure accurate fitting of the SEIR model to data for any specific state. In this study, we consider the second outbreak of COVID-19 in Italy as a case study, which occurred in August 2020. We divide the epidemic data from February to September of the same year into two distinct stages for analysis. The numerical results demonstrate that the improved SEIR model effectively simulates and predicts the transmission trajectories of the Italian epidemic during both periods before and after the second outbreak. By analyzing the impact of anti-epidemic measures on the spread of the disease, our findings emphasize the significance of implementing anti-epidemic preventive measures in COVID-19 modeling.
    MeSH term(s) Humans ; COVID-19/epidemiology ; Disease Outbreaks ; Epidemics ; Virus Diseases ; Italy/epidemiology
    Language English
    Publishing date 2023-08-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711781-9
    ISSN 2296-2565 ; 2296-2565
    ISSN (online) 2296-2565
    ISSN 2296-2565
    DOI 10.3389/fpubh.2023.1223039
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top