| NADPH oxidase-dependent formation of reactive oxygen species contributes to transforming growth factor β1-induced epithelial-mesenchymal transition in rat peritoneal mesothelial cells, and the role of astragalus intervention. | |
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MedLine Citation:
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PMID: 23090359 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate the role of nicotinamide-adenine dinucleotide phosphate (NADPH) oxidasedependent formation of reactive oxygen species (ROS) in the transforming growth factor β1 (TGF-β1)-induced epithelial-mesenchymal transition (EMT) in rat peritoneal mesothelial cells (RPMCs), and the effect of Astragalus injection (AGI) intervention. METHODS: Primary RPMCs were cultured to the second generation in vitro. After synchronization for 24 h, the cells were randomly assigned to the following groups: control (Group A), AGI (2 g/mL; Group B), TGF-β1 (10 ng/mL; Group C), TGF-β1 (10 ng/mL) + AGI (2 g/mL; Group D; pretreated for 1 h with AGI before TGF-β1 stimulation). Reverse transcription-polymerase chain reaction (RT-PCR) and Western blot analysis were employed to evaluate the mRNA and protein expression of the NADPH oxidase subunit p67phox, α-smooth muscle actin (α-SMA) and E-cadherin. The dichlorofluorescein-sensitive cellular ROS levels were measured by a fluorometric assay and confocal microscopy. RESULTS: TGF-β1 significantly induced NADPH oxidase subunit p67phox mRNA and protein expression in RPMCs, as well as inducing the production of intracellular ROS. AGI inhibited this TGF-β1-induced up-regulation by 39.3% and 47.8%, respectively (P<0.05), as well as inhibiting the TGF-β1-induced ROS generation by 56.3% (P<0.05). TGF-β1 also induced α-SMA mRNA and protein expression, and down-regulated E-cadherin mRNA and protein expression (P<0.05). This effect was suppressed by AGI (P<0.05). CONCLUSIONS: NADPH oxidase-dependent formation of ROS may mediate the TGF-β1-dependent EMT in RPMCs. AGI could inhibit this process, providing a theoretical basis for AGI in the prevention of peritoneal fibrosis. |
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Authors:
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Xiao-Xian Liu; Hong-Juan Zhou; Long Cai; Wen Zhang; Ji-Lin Ma; Xiao-Juan Tao; Jian-Ning Yu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-22 |
Journal Detail:
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Title: Chinese journal of integrative medicine Volume: - ISSN: 1672-0415 ISO Abbreviation: Chin J Integr Med Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101181180 Medline TA: Chin J Integr Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Nephrology, Zhejiang Provincial Hospital of Integrated Chinese and Western Medicine, Hangzhou, 310003, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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