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  1. Book ; Thesis: TET2 und IDH2 mutations in T and B cells of angioimmunoblastic T-cell lymphoma (AITL)

    Cai, Qian

    2016  

    Institution Universität Duisburg-Essen
    Author's details vorgelegt von Qian Cai
    Language English
    Size 75 Blätter, Illustrationen, Diagramme
    Publishing place Duisburg ; Essen
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Dissertation, Universität Duisburg-Essen, 2016
    HBZ-ID HT019321184
    Database Catalogue ZB MED Medicine, Health

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  2. Article ; Online: Deciphering the molecular interplay and tumorigenesis in hepatocellular carcinoma through insights into FBXL6 and KRAS

    Cai, Qiang / Shubhra, Quazi T H

    Military Medical Research

    2024  Volume 11, Issue 1, Page(s) 9

    MeSH term(s) Mice ; Animals ; Carcinoma, Hepatocellular/genetics ; Carcinoma, Hepatocellular/pathology ; Proto-Oncogene Proteins p21(ras) ; Reactive Oxygen Species ; Liver Neoplasms/genetics ; Liver Neoplasms/pathology ; Carcinogenesis/genetics ; TOR Serine-Threonine Kinases
    Chemical Substances Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2) ; Reactive Oxygen Species ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2024-02-08
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2768940-2
    ISSN 2054-9369 ; 2054-9369
    ISSN (online) 2054-9369
    ISSN 2054-9369
    DOI 10.1186/s40779-024-00515-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Role of C9orf72 hexanucleotide repeat expansions in ALS/FTD pathogenesis.

    Geng, Yanyan / Cai, Qixu

    Frontiers in molecular neuroscience

    2024  Volume 17, Page(s) 1322720

    Abstract: Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are progressive neurological disorders that share neurodegenerative pathways and features. The most prevalent genetic causes of ALS/FTD is the GGGGCC hexanucleotide repeat expansions ... ...

    Abstract Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are progressive neurological disorders that share neurodegenerative pathways and features. The most prevalent genetic causes of ALS/FTD is the GGGGCC hexanucleotide repeat expansions in the first intron region of the chromosome 9 open reading frame 72 (C9orf72) gene. In this review, we comprehensively summarize the accumulating evidences elucidating the pathogenic mechanism associated with hexanucleotide repeat expansions in ALS/FTD. These mechanisms encompass the structural polymorphism of DNA and transcribed RNA, the formation of RNA foci via phase separation, and the cytoplasmic accumulation and toxicities of dipeptide-repeat proteins. Additionally, the formation of G-quadruplex structures significantly impairs the expression and normal function of the C9orf72 protein. We also discuss the sequestration of specific RNA binding proteins by GGGGCC RNA, which further contributes to the toxicity of C9orf72 hexanucleotide repeat expansions. The deeper understanding of the pathogenic mechanism of hexanucleotide repeat expansions in ALS/FTD provides multiple potential drug targets for these devastating diseases.
    Language English
    Publishing date 2024-01-22
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2452967-9
    ISSN 1662-5099
    ISSN 1662-5099
    DOI 10.3389/fnmol.2024.1322720
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Identification of CNKSR1 as a biomarker for "cold" tumor microenvironment in lung adenocarcinoma: An integrative analysis based on a novel workflow.

    Cai, Qidong / Peng, Mou

    Heliyon

    2024  Volume 10, Issue 8, Page(s) e29126

    Abstract: Background: Therapies targeting PD1/PD-L1 pathway have revolutionized the treatment of lung cancer. However, anti-PD1/PD-L1 therapies have proven beneficial for only a select group of lung adenocarcinoma (LUAD) patients and generally do not work for ... ...

    Abstract Background: Therapies targeting PD1/PD-L1 pathway have revolutionized the treatment of lung cancer. However, anti-PD1/PD-L1 therapies have proven beneficial for only a select group of lung adenocarcinoma (LUAD) patients and generally do not work for immuno-cold tumors characterized by a lack of immune cell infiltration. Identifying novel biomarkers is vital to broad therapeutic options for LUAD patients with no response to anti-PD1/PD-L1 immunotherapies.
    Methods: Our study has developed a novel strategy to identify a promising biomarker that addresses the limitations of anti-PD1/PD-L1 immunotherapy in treating immunological cold tumors. We exacted LUAD RNA-seq data from the Cancer Genome Atlas database (TCGA). Using several machine learning methods, we identified the candidate biomarker. Based on the expression level of PD-L1 and the identified biomarker, samples were categorized into four groups. We further used ESTIMATE, ssGSEA, and CIBERSORT algorithms to calculate the immune infiltration level of each group. The results were validated in three independent bulk datasets and one scRNA-seq dataset. Immunohistochemistry (IHC) assessments were performed in clinical samples to further evaluate the coexpression of CNKSR1 and PD-L1, and to compare CD8 + T cell infiltration among groups.
    Results: After comprehensive analyses, CNKSR1 was identified as a novel promising biomarker for immuno-cold LUAD. CNKSR1 mRNA expression levels exhibited a negative correlation with both PD-L1 mRNA expression and the extent of immune cell infiltration in LUAD. Besides, in contrast to the significant association between the expression of PD-L1 and the majority of other well-established or widely studied immune checkpoint molecules, a mutually exclusive expression pattern is observed between CNKSR1 and these molecules. The aforementioned results were consistent in validation datasets. The prognostic model built based on the CNKSR1 coexpression module also showed robust predictive performance. Additionally, IHC assessments have confirmed that the coexpression of CNKSR1 and PD-L1 is rare in LUAD samples. Notably, LUADs in the high-CNKSR1 group, characterized by high CNKSR1 but low PD- L1 expression, demonstrated reduced infiltration of CD8
    Conclusions: In summary, CNKSR1 emerges as a promising biomarker for immune-cold LUADs, and the study into CNKSR1 modulating T-cell infiltration may lead to the identification of compensatory molecules to enhance the effectiveness of current immunotherapy for LUAD.
    Language English
    Publishing date 2024-04-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e29126
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Two ferroptosis-specific expressed genes NOX4 and PARP14 are considered as potential biomarkers for the diagnosis and treatment of diabetic retinopathy and atherosclerosis.

    Li, Chen / Cai, QinHua

    Diabetology & metabolic syndrome

    2024  Volume 16, Issue 1, Page(s) 61

    Abstract: Objectives: Both Diabetic retinopathy (DR) and Atherosclerosis (AS) are common complications in patients with diabetes, and they share major pathophysiological similarities and have a common pathogenesis. Studies performed to date have demonstrated that ...

    Abstract Objectives: Both Diabetic retinopathy (DR) and Atherosclerosis (AS) are common complications in patients with diabetes, and they share major pathophysiological similarities and have a common pathogenesis. Studies performed to date have demonstrated that ferroptosis plays a vital part in the occurrence and development of DR and AS, but its mechanism in the two diseases remains poorly understood.
    Methods: DR Chip data (GSE60436 and GSE102485) and AS chip data (GSE100927 and GSE57691) were obtained from the Gene Expression Omnibus (GEO) database. The screening of the differential expression genes (DEGs) was analyzed using the limma package, and the genes related to ferroptosis were obtained from the FerrDb V2 database. Two key genes (NOX4 and PARP14) were identified through external datasets validation and receiver operating characteristic (ROC) curve analysis. Gene Ontology (GO) and Gene Set Enrichment Analysis (GSEA) were used to conduct a functional enrichment analysis, and miRNA-mRNA networks were established. The CIBERSORT algorithm was applied to identify the immune cell infiltration between the disease group and control group. Next, the correlations between key genes and infiltrating immune cells were investigated by the Spearman method. Finally, the correlation between 2 key genes and ferroptosis markers was confirmed.
    Results: Nine ferroptosis differentially expressed genes (DE-FRGs) between DR and AS were identified in this study. NOX4 and PARP14 were selected as key genes for further analysis by external datasets and ROC curve analysis. The key genes NOX4, PARP14 and their correlated genes (such as CYBA, NOX1, NOX3, CYBB, PARP9, PARP10, and PARP15) are mainly enriched in oxidoreductase activity, protein ADP-ribosylation, superoxide metabolic process, reactive oxygen species metabolic process, PID pathway, and VEGFA-VEGFR2 pathway. A miRNA-mRNA network was constructed, and we got 12 miRNAs correlated with the target gene NOX4, 38 miRNAs correlated with the target gene PARP14. Three common miRNAs (hsa-miR-1-3p, hsa-miR-129-2-3p, and hsa-miR-155-5p) were observed in the network. Immune infiltration analysis displayed that activated B cell, MDSC, and Type 17 T helper cell are the common immune cells involved in the immune infiltration process of DR and AS. The results revealed that there are significant correlations between two key genes and most ferroptosis marker genes no matter in DR or AS.
    Conclusion: Ferroptosis-related genes NOX4 and PARP14 may be common biomarkers of DR and AS. Both were associated with immune infiltration in patients with DR and AS. Our data provide a theoretical basis for the early diagnosis and immunotherapy of the two diseases.
    Language English
    Publishing date 2024-03-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2518786-7
    ISSN 1758-5996
    ISSN 1758-5996
    DOI 10.1186/s13098-024-01301-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Super-Resolution Imaging of Tau Proteins in Isolated and Immobilized Brain Synaptosomes.

    Cai, Qixu / Tai, Hwan-Ching

    Methods in molecular biology (Clifton, N.J.)

    2024  Volume 2754, Page(s) 445–456

    Abstract: Tau protein has important physiological functions at both presynaptic and postsynaptic terminals. Pathological tau species are also associated with synaptic dysfunctions in several neurodegenerative disorders, especially Alzheimer's disease. To ... ...

    Abstract Tau protein has important physiological functions at both presynaptic and postsynaptic terminals. Pathological tau species are also associated with synaptic dysfunctions in several neurodegenerative disorders, especially Alzheimer's disease. To understand tau distribution inside synaptic compartments, super-resolution imaging is required. Here, we describe a facile protocol to immobilize and image brain synaptosomes without aggregation artefacts, by substituting the standard fixative paraformaldehyde with ethylene glycol bis(succinimidyl succinate) (EGS). Super-resolution imaging of tau proteins is achieved through three-color direct stochastic optical reconstruction microscopy (dSTORM). Tau protein is found to colocalize with synaptic vesicles as well as postsynaptic densities.
    MeSH term(s) Humans ; Synaptosomes/metabolism ; tau Proteins/metabolism ; Alzheimer Disease/metabolism ; Synaptic Vesicles/metabolism ; Brain/metabolism
    Chemical Substances tau Proteins
    Language English
    Publishing date 2024-03-21
    Publishing country United States
    Document type Journal Article
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-3629-9_24
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Gasdermin D triggers cardiolipin-driven mitochondrial damage and pyroptosis.

    Cai, Qiang / Shubhra, Quazi T H

    Trends in immunology

    2024  Volume 45, Issue 2, Page(s) 75–77

    Abstract: In a remarkable recent study, Miao et al. reveal that gasdermin D N-terminal (GSDMD-NT) instigates mitochondrial damage in pyroptosis by forming pores in inner and outer mitochondrial membranes (OMMs). The authors highlight the key role of mitochondrial ... ...

    Abstract In a remarkable recent study, Miao et al. reveal that gasdermin D N-terminal (GSDMD-NT) instigates mitochondrial damage in pyroptosis by forming pores in inner and outer mitochondrial membranes (OMMs). The authors highlight the key role of mitochondrial cardiolipin in the action of GSDMD-NT, and significantly advance our understanding of this inflammatory cell death mechanism.
    MeSH term(s) Humans ; Pyroptosis ; Intracellular Signaling Peptides and Proteins/metabolism ; Cardiolipins/metabolism ; Gasdermins ; Neoplasm Proteins/metabolism ; Inflammasomes/metabolism
    Chemical Substances Intracellular Signaling Peptides and Proteins ; Cardiolipins ; Gasdermins ; Neoplasm Proteins ; Inflammasomes
    Language English
    Publishing date 2024-01-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2036831-8
    ISSN 1471-4981 ; 1471-4906
    ISSN (online) 1471-4981
    ISSN 1471-4906
    DOI 10.1016/j.it.2024.01.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A commentary on 'The efficacy and safety of probiotics for prevention of chemoradiotherapy-induced diarrhea in people with abdominal and pelvic cancer: a systematic review and meta-analysis based on 23 randomized studies'.

    Cai, Qinjun / Shi, Ying

    International journal of surgery (London, England)

    2024  Volume 110, Issue 5, Page(s) 3097–3098

    MeSH term(s) Humans ; Probiotics/administration & dosage ; Probiotics/therapeutic use ; Diarrhea/chemically induced ; Diarrhea/prevention & control ; Chemoradiotherapy/adverse effects ; Pelvic Neoplasms ; Randomized Controlled Trials as Topic ; Abdominal Neoplasms
    Language English
    Publishing date 2024-05-01
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 2212038-5
    ISSN 1743-9159 ; 1743-9191
    ISSN (online) 1743-9159
    ISSN 1743-9191
    DOI 10.1097/JS9.0000000000001172
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Streptococcus anginosus

    Cai, Qiangjun

    BMJ case reports

    2020  Volume 13, Issue 8

    Abstract: Purulent pericarditis caused ... ...

    Abstract Purulent pericarditis caused by
    MeSH term(s) Aged ; Cardiac Tamponade/microbiology ; Coronary Artery Bypass ; Humans ; Male ; Pericarditis/microbiology ; Postoperative Complications/microbiology ; Streptococcal Infections/complications ; Streptococcus anginosus ; Suppuration/microbiology
    Language English
    Publishing date 2020-08-25
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 1757-790X
    ISSN (online) 1757-790X
    DOI 10.1136/bcr-2020-235862
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Plant Exosome-like Nanovesicles and Their Role in the Innovative Delivery of RNA Therapeutics.

    Chen, Yu-Xin / Cai, Qiang

    Biomedicines

    2023  Volume 11, Issue 7

    Abstract: Exosomes are single membrane-bound spheres released from cells carrying complex cargoes, including lipids, proteins, and nucleic acids. Exosomes transfer specific cargoes from donor to acceptor cells, playing important roles in cell-to-cell communication. ...

    Abstract Exosomes are single membrane-bound spheres released from cells carrying complex cargoes, including lipids, proteins, and nucleic acids. Exosomes transfer specific cargoes from donor to acceptor cells, playing important roles in cell-to-cell communication. Current studies have reported that plant exosomes are prominent in transferring small RNA between host and pathogens in a cross-kingdom manner. Plant exosomes are excellent RNA interference (RNAi) delivery agents with similar physical and chemical properties to mammalian exosomes and have potential applications in therapeutic delivery systems. Recent data have suggested that plant exosome-like nanovesicles (PENVs) and artificial PENV-derived nano-vectors (APNVs) are beneficial for delivering therapeutic small RNA in mammalian systems and exhibit excellent competitiveness in future clinical applications. This review features their preparation methods, composition, roles in small RNA delivery for health functionalities, and their potency as functional nanomedicine.
    Language English
    Publishing date 2023-06-24
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2720867-9
    ISSN 2227-9059
    ISSN 2227-9059
    DOI 10.3390/biomedicines11071806
    Database MEDical Literature Analysis and Retrieval System OnLINE

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