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  1. Article ; Online: Circ-E2F3 acts as a ceRNA for miR-204-5p to promote proliferation, metastasis and apoptosis inhibition in retinoblastoma by regulating ROCK1 expression.

    Huang, Yonglun / Xue, Boguang / Pan, Jianhui / Shen, Nian

    Experimental and molecular pathology

    2021  Volume 120, Page(s) 104637

    Abstract: Background: Circular RNA (circRNA) plays an important role in the malignant progression of many tumors, including retinoblastoma (RB). However, the role and regulatory mechanism of circ-E2F3 in RB have not been fully elucidated.: Methods: ... ...

    Abstract Background: Circular RNA (circRNA) plays an important role in the malignant progression of many tumors, including retinoblastoma (RB). However, the role and regulatory mechanism of circ-E2F3 in RB have not been fully elucidated.
    Methods: Quantitative real-time PCR was used to measure circ-E2F3, miR-204-5p and Rho-associated protein kinase 1 (ROCK1) expression. Cell proliferation, apoptosis and metastasis were monitored by MTT, colony formation, flow cytometry, transwell and wound healing assays. Dual-luciferase reporter assay was employed to verify the relationship between miR-204-5p and circ-E2F3 or ROCK1. ROCK1 protein expression was detected by western blot assay. Mice xenograft models were built to assess the role of circ-E2F3 on RB tumor growth.
    Results: Circ-E2F3 was upregulated in RB tissues and cells. Silencing of circ-E2F3 inhibited the proliferation, migration, invasion, and induced the apoptosis of RB cells in vitro, as well as reduced RB tumor growth in vivo. MiR-204-5p could be sponged by circ-E2F3, and its inhibitor reversed the suppressive effect of circ-E2F3 silencing on RB progression. In addition, ROCK1 was confirmed to interact with miR-204-5p. MiR-204-5p regulated RB progression by targeting ROCK1. Also, circ-E2F3 positively regulated ROCK1 expression by sponging miR-204-5p.
    Conclusion: Circ-E2F3 functioned as a tumor promoter in RB through the miR-204-5p/ROCK1 axis.
    MeSH term(s) Animals ; Apoptosis ; Biomarkers, Tumor/genetics ; Biomarkers, Tumor/metabolism ; Cell Movement ; Cell Proliferation ; E2F3 Transcription Factor/genetics ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; MicroRNAs/genetics ; Neoplasm Invasiveness ; Prognosis ; RNA, Circular/genetics ; Retinal Neoplasms/genetics ; Retinal Neoplasms/metabolism ; Retinal Neoplasms/pathology ; Retinoblastoma/genetics ; Retinoblastoma/metabolism ; Retinoblastoma/pathology ; Survival Rate ; Tumor Cells, Cultured ; Xenograft Model Antitumor Assays ; rho-Associated Kinases/genetics ; rho-Associated Kinases/metabolism
    Chemical Substances Biomarkers, Tumor ; E2F3 Transcription Factor ; E2F3 protein, human ; MIRN204 microRNA, human ; MicroRNAs ; RNA, Circular ; ROCK1 protein, human (EC 2.7.11.1) ; rho-Associated Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2021-04-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 207655-x
    ISSN 1096-0945 ; 0014-4800
    ISSN (online) 1096-0945
    ISSN 0014-4800
    DOI 10.1016/j.yexmp.2021.104637
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: IFI27 is a potential therapeutic target for HIV infection.

    Huang, Huijuan / Lv, Jiannan / Huang, Yonglun / Mo, Zhiyi / Xu, Haisheng / Huang, Yiyang / Yang, Linghui / Wu, Zhengqiu / Li, Hongmian / Qin, Yaqin

    Annals of medicine

    2022  Volume 54, Issue 1, Page(s) 314–325

    Abstract: Background: Therapeutic studies against human immunodeficiency virus type 1 (HIV-1) infection have become one of the important works in global public health.: Methods: Differential expression analysis was performed between HIV-positive (HIV+) and HIV- ...

    Abstract Background: Therapeutic studies against human immunodeficiency virus type 1 (HIV-1) infection have become one of the important works in global public health.
    Methods: Differential expression analysis was performed between HIV-positive (HIV+) and HIV-negative (HIV-) patients for GPL6947 and GPL10558 of GSE29429. Coexpression analysis of common genes with the same direction of differential expression identified modules. Module genes were subjected to enrichment analysis, Short Time-series Expression Miner (STEM) analysis, and PPI network analysis. The top 100 most connected genes in the PPI network were screened to construct the LASSO model, and AUC values were calculated to identify the key genes. Methylation modification of key genes were identified by the chAMP package. Differences in immune cell infiltration between HIV + and HIV- patients, as well as between antiretroviral therapy (ART) and HIV + patients, were calculated using ssGSEA.
    Results: We obtained 3610 common genes, clustered into nine coexpression modules. Module genes were significantly enriched in interferon signalling, helper T-cell immunity, and HIF-1-signalling pathways. We screened out module genes with gradual changes in expression with increasing time from HIV enrolment using STEM software. We identified 12 significant genes through LASSO regression analysis, especially proteasome 20S subunit beta 8 (PSMB8) and interferon alpha inducible protein 27 (IFI27). The expression of PSMB8 and IFI27 were then detected by quantitative real-time PCR. Interestingly, IFI27 was also a persistently dysregulated gene identified by STEM. In addition, 10 of the key genes were identified to be modified by methylation. The significantly infiltrated immune cells in HIV + patients were restored after ART, and IFI27 was significantly associated with immune cells.
    Conclusion: The above results provided potential target genes for early diagnosis and treatment of HIV + patients. IFI27 may be associated with the progression of HIV infection and may be a powerful target for immunotherapy.
    MeSH term(s) HIV Infections/drug therapy ; HIV Infections/genetics ; Humans ; Membrane Proteins/genetics ; Membrane Proteins/therapeutic use
    Chemical Substances IFI27 protein, human ; Membrane Proteins
    Language English
    Publishing date 2022-01-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1004226-x
    ISSN 1365-2060 ; 1651-2219 ; 0785-3890 ; 1743-1387
    ISSN (online) 1365-2060 ; 1651-2219
    ISSN 0785-3890 ; 1743-1387
    DOI 10.1080/07853890.2021.1995624
    Database MEDical Literature Analysis and Retrieval System OnLINE

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