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Toosendanin Restrains Idiopathic Pulmonary Fibrosis by Inhibiting ZEB1/CTBP1 Interaction

Li, Xingbin ; Bai, Zina ; Li, Zhensheng ; Wang, Jun ; Yan, Xixin

Current molecular medicine, 2024-01, Vol.24 (1), p.123-133 [Periódico revisado por pares]

Netherlands: Benham Science Publishers

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Título:
Toosendanin Restrains Idiopathic Pulmonary Fibrosis by Inhibiting ZEB1/CTBP1 Interaction
Autor: Li, Xingbin ; Bai, Zina ; Li, Zhensheng ; Wang, Jun ; Yan, Xixin
Assuntos: Animal models ; Animals ; Bromodeoxyuridine - metabolism ; Bromodeoxyuridine - pharmacology ; Cell lines ; Cell proliferation ; Collagen (type I) ; Deposition ; Extracellular matrix ; Fibroblasts ; Fibroblasts - metabolism ; Fibrosis ; Gene expression ; Growth factors ; Humans ; Idiopathic Pulmonary Fibrosis - genetics ; Insulin-like growth factor I ; Insulin-like growth factors ; Intercellular Signaling Peptides and Proteins - metabolism ; Life Sciences, Biochemistry, Medicine, Research & Experimental, Biochemistry and Molecular Biology, Molecular Medicine ; Lung ; Lung diseases ; Lungs ; Mice ; Molecular modelling ; Platelet-derived growth factor ; Platelet-derived growth factor BB ; Pulmonary fibrosis ; Respiratory function ; Therapeutic targets ; Transcription Factors - genetics ; Transcription Factors - metabolism ; Transforming Growth Factor beta1 - metabolism ; Transforming growth factor-b1 ; Western blotting ; Zinc Finger E-box-Binding Homeobox 1 - genetics ; Zinc Finger E-box-Binding Homeobox 1 - metabolism
É parte de: Current molecular medicine, 2024-01, Vol.24 (1), p.123-133
Descrição: Extensive deposition of extracellular matrix (ECM) in idiopathic pulmonary fibrosis (IPF) is due to hyperactivation and proliferation of pulmonary fibroblasts. However, the exact mechanism is not clear. This study focused on the role of CTBP1 in lung fibroblast function, elaborated its regulation mechanism, and analyzed the relationship between CTBP1 and ZEB1. Meanwhile, the antipulmonary fibrosis effect and its molecular mechanism of Toosendanin were studied. Human IPF fibroblast cell lines (LL-97A and LL-29) and normal fibroblast cell lines (LL-24) were cultured . The cells were stimulated with FCS, PDGF-BB, IGF-1, and TGF-β1, respectively. BrdU detected cell proliferation. The mRNA expression of CTBP1 and ZEB1 was detected by QRT-PCR. Western blotting was used to detect the expression of COL1A1, COL3A1, LN, FN, and α-SMA proteins. An animal model of pulmonary fibrosis was established to analyze the effects of CTBP1 silencing on pulmonary fibrosis and lung function in mice. CTBP1 was up-regulated in IPF lung fibroblasts. Silencing CTBP1 inhibits growth factor-driven proliferation and activation of lung fibroblasts. Overexpression of CTBP1 promotes growth factor-driven proliferation and activation of lung fibroblasts. Silencing CTBP1 reduced the degree of pulmonary fibrosis in mice with pulmonary fibrosis. Western blot, CO-IP, and BrdU assays confirmed that CTBP1 interacts with ZEB1 and promotes the activation of lung fibroblasts. Toosendanin can inhibit the ZEB1/CTBP1protein interaction and further inhibit the progression of pulmonary fibrosis. CTBP1 can promote the activation and proliferation of lung fibroblasts through ZEB1. CTBP1 promotes lung fibroblast activation through ZEB1, thereby increasing excessive deposition of ECM and aggravating IPF. Toosendanin may be a potential treatment for pulmonary fibrosis. The results of this study provide a new basis for clarifying the molecular mechanism of pulmonary fibrosis and developing new therapeutic targets.
Editor: Netherlands: Benham Science Publishers
Idioma: Inglês

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Toosendanin Restrains Idiopathic Pulmonary Fibrosis by Inhibiting ZEB1/CTBP1 Interaction

Li, Xingbin ; Bai, Zina ; Li, Zhensheng ; Wang, Jun ; Yan, Xixin

Netherlands: Benham Science Publishers

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