Background:Renalfibrosis is an important process in the development of chronic kidney disease.Understanding the pathogenesis andfinding effective treatments for renalfibrosis is crucial.This study aims to investigate whe...Background:Renalfibrosis is an important process in the development of chronic kidney disease.Understanding the pathogenesis andfinding effective treatments for renalfibrosis is crucial.This study aims to investigate whether a newly discovered long non-coding RNA(lncRNA)called LOC103694972 could be a potential target for treatingfibrosis of NRK-49F cells.Methods:LncRNA Chip was used to identify differentially expressed lncRNAs between TGF-β1-induced NRK-49F cells and normal cells.The dual-luciferase assay confirmed the binding between miR-29c-3p and signal transducer and activator of transcription(STAT3),as well as between miR-29c-3p and lncRNA LOC103694972.Si-LOC103694972 and miR-29c-3p mimic were then transfected into TGF-β1-induced NRK-49F cells.Results:The study found that LOC103694972 was highly expressed in TGF-β1-induced NRK-49F cells.These cells exhibited increased cell length and activity compared to the control group.The expression levels of Collagen I,α-Smooth muscle actin(α-SMA),and tissue inhibitor of metalloproteinase(TIMP-1)were increased,while matrix Metalloproteinase 2(MMP2)and matrix Metalloproteinase 9(MMP9)expression was decreased.However,transfection with si-LOC103694972 and miR-29c-3p mimics restored cell morphology and reduced cell viability.This led to a decrease in the levels of Collagen I,α-SMA,and TIMP-1,as well as an increase in MMP2 and MMP9 expression.Additionally,TGF-β1-induced NRK-49F cells transfected with miR-29c-3p mimics activated the STAT3-Smad3/CTGF pathway.Conclusion:Based on thesefindings,lncRNA LOC103694972 shows promise as a target for treating renalfibrosis.It negatively regulates miR-29c-3p and activates the STAT3-Smad3/CTGF pathway.展开更多
长链非编码RNA主要通过转录调节、表观遗传学调节、转录后调节、染色质重构等方式调节细胞的各种生物学功能,其表达水平的改变在肿瘤的致癌及抑癌途径中有重要作用,而长链非编码RNA LOC 285194在多种恶性肿瘤中低表达,表现出抑癌基因的...长链非编码RNA主要通过转录调节、表观遗传学调节、转录后调节、染色质重构等方式调节细胞的各种生物学功能,其表达水平的改变在肿瘤的致癌及抑癌途径中有重要作用,而长链非编码RNA LOC 285194在多种恶性肿瘤中低表达,表现出抑癌基因的功能,在肿瘤的发生发展中起调控作用,具有作为肿瘤诊断、评估预后的新分子标记物的潜能。现结合国内外文献对LOC 285194在恶性肿瘤研究中的进展作一综述。展开更多
基金This work was supported by the Hunan Provincial Education Department General Project Research Fund(No.20C1412)the Hunan Graduate Scientific Research Innovation Project(No.CX2018B474)the National Famous Elderly Chinese Medicine Experts Xinyu Chen Inheritance Workshop Construction Project(No.[2022]75).
文摘Background:Renalfibrosis is an important process in the development of chronic kidney disease.Understanding the pathogenesis andfinding effective treatments for renalfibrosis is crucial.This study aims to investigate whether a newly discovered long non-coding RNA(lncRNA)called LOC103694972 could be a potential target for treatingfibrosis of NRK-49F cells.Methods:LncRNA Chip was used to identify differentially expressed lncRNAs between TGF-β1-induced NRK-49F cells and normal cells.The dual-luciferase assay confirmed the binding between miR-29c-3p and signal transducer and activator of transcription(STAT3),as well as between miR-29c-3p and lncRNA LOC103694972.Si-LOC103694972 and miR-29c-3p mimic were then transfected into TGF-β1-induced NRK-49F cells.Results:The study found that LOC103694972 was highly expressed in TGF-β1-induced NRK-49F cells.These cells exhibited increased cell length and activity compared to the control group.The expression levels of Collagen I,α-Smooth muscle actin(α-SMA),and tissue inhibitor of metalloproteinase(TIMP-1)were increased,while matrix Metalloproteinase 2(MMP2)and matrix Metalloproteinase 9(MMP9)expression was decreased.However,transfection with si-LOC103694972 and miR-29c-3p mimics restored cell morphology and reduced cell viability.This led to a decrease in the levels of Collagen I,α-SMA,and TIMP-1,as well as an increase in MMP2 and MMP9 expression.Additionally,TGF-β1-induced NRK-49F cells transfected with miR-29c-3p mimics activated the STAT3-Smad3/CTGF pathway.Conclusion:Based on thesefindings,lncRNA LOC103694972 shows promise as a target for treating renalfibrosis.It negatively regulates miR-29c-3p and activates the STAT3-Smad3/CTGF pathway.
文摘长链非编码RNA主要通过转录调节、表观遗传学调节、转录后调节、染色质重构等方式调节细胞的各种生物学功能,其表达水平的改变在肿瘤的致癌及抑癌途径中有重要作用,而长链非编码RNA LOC 285194在多种恶性肿瘤中低表达,表现出抑癌基因的功能,在肿瘤的发生发展中起调控作用,具有作为肿瘤诊断、评估预后的新分子标记物的潜能。现结合国内外文献对LOC 285194在恶性肿瘤研究中的进展作一综述。
