| Co-treatment with hepatocyte growth factor and TGF-beta1 enhances migration of HaCaT cells through NADPH oxidase-dependent ROS generation. | |
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MedLine Citation:
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PMID: 20177149 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Wound healing requires re-epithelialization from the wound margin through keratinocyte proliferation and migration, and some growth factors are known to influence this process. In the present study, we found that the co-treatment with hepatocyte growth factor (HGF) and TGF-beta1 resulted in enhanced migration of HaCaT cells compared with either growth factor alone, and that N-acetylcysteine, an antioxidant agent, was the most effective among several inhibitors tested, suggesting the involvement of reactive oxygen species (ROS). Fluorescence-activated cell sorter analysis using 2,7-dichlorofluorescein diacetate (DCF-DA) dye showed an early (30 min) as well as a late (24 h) increase of ROS after scratch, and the increase was more prominent with the growth factor treatment. Diphenyliodonium (DPI), a potent inhibitor of NADPH oxidase, abolished the increase of ROS at 30 min, followed by the inhibition of migration, but not the late time event. More precisely, gene knockdown by shRNA for either Nox-1 or Nox-4 isozyme of gp91phox subunit of NADPH oxidase abolished both the early time ROS production and migration. However, HaCaT cell migration was not enhanced by treatment with H((2))O((2)). Collectively, co-treatment with HGF and TGF-beta1 enhances keratinocyte migration, accompanied with ROS generation through NADPH oxidase, involving Nox-1 and Nox-4 isozymes. |
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Authors:
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Hyun-Ja Nam; Yun-Yeon Park; Gyesoon Yoon; Hyeseong Cho; Jae-Ho Lee |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Experimental & molecular medicine Volume: 42 ISSN: 2092-6413 ISO Abbreviation: Exp. Mol. Med. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-29 Completed Date: 2010-09-20 Revised Date: 2013-05-30 |
Medline Journal Info:
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Nlm Unique ID: 9607880 Medline TA: Exp Mol Med Country: Korea (South) |
Other Details:
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Languages: eng Pagination: 270-9 Citation Subset: IM |
Affiliation:
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Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 443-721, Korea. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biphenyl Compounds
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pharmacology Cell Movement / drug effects* Epithelium / drug effects, enzymology Gene Knockdown Techniques Hepatocyte Growth Factor / pharmacology* Humans Hydrogen Peroxide / pharmacology Isoenzymes / metabolism Keratinocytes / cytology*, drug effects, enzymology* NADPH Oxidase / metabolism* Onium Compounds / pharmacology Phosphatidylinositol 3-Kinases / metabolism Protein Subunits / metabolism Reactive Oxygen Species / metabolism* Signal Transduction / drug effects Time Factors Transforming Growth Factor beta1 / pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Biphenyl Compounds; 0/Isoenzymes; 0/Onium Compounds; 0/Protein Subunits; 0/Reactive Oxygen Species; 0/Transforming Growth Factor beta1; 10182-84-0/diphenyliodonium; 67256-21-7/Hepatocyte Growth Factor; 7722-84-1/Hydrogen Peroxide; EC 1.6.3.-/NOX1 protein, human; EC 1.6.3.-/NOX4 protein, human; EC 1.6.3.1/NADPH Oxidase; EC 2.7.1.-/Phosphatidylinositol 3-Kinases |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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