2015 Fiscal Year Final Research Report
The protective effects of activation of HIF on alveolar epithelial cells
| Project/Area Number |
25861392
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Anesthesiology
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| Research Institution | Yokohama City University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 肺傷害 / アポトーシス / 低酸素誘導性因子 |
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| Outline of Final Research Achievements |
We investigated the effect of stabilization of HIF-1α by treatment with dimethyloxalylglycine (DMOG); a prolyl hydroxylase inhibitor on FasL-induced alveolar epithelial apoptosis in vitro and in vivo. DMOG increased HIF-1α protein levels in MLE12 cells, and attenuated FasL-induced caspase activation and cell death. Inhibition of HIF-1 pathway by echinomycin; an inhibitor of HIF-1 binding to DNA, or by siRNA transfection abolished the anti-apoptotic effect of DMOG. Intraperitoneal administration of DMOG also suppressed apoptosis in lung tissues in the mice intratracheally instilled with FasL. Moreover, DMOG attenuated disruption of alveolar barrier and histological changes in these mice. Prolyl hydroxylase inhibition protects lung epithelial cells from FasL-induced apoptosis and attenuated the lung injury.
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| Free Research Field |
集中治療医学
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