Cytochrome P450 drives a HIF-regulated behavioral response to reoxygenation by C. elegans.

Cytochrome P450 drives a HIF-regulated behavioral response to reoxygenation by C. elegans.
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DOI:
10.1126/science.1235753
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发表时间:
2013-08-02
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Horvitz HR
Horvitz HR
中科院分区:
其他
文献类型:
--
作者:
Ma DK;Rothe M;Zheng S;Bhatla N;Pender CL;Menzel R;Horvitz HR

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Oxygen deprivation followed by reoxygenation causes pathological responses in many disorders, including ischemic stroke, heart attacks and reperfusion injury. Key aspects of ischemia-reperfusion can be modeled by a C. elegans behavior, the O2-ON response, which is suppressed by hypoxic preconditioning or inactivation of the O2-sensing HIF (hypoxia-inducible-factor) hydroxylase EGL-9. From a genetic screen, we found that the cytochrome P450 oxygenase CYP-13A12 acts in response to the EGL-9/HIF-1 pathway to facilitate the O2-ON response. CYP-13A12 promotes oxidation of polyunsaturated fatty acids into eicosanoids, signaling molecules that can strongly affect inflammatory pain and ischemia-reperfusion injury responses in mammals. We propose that roles of the EGL-9/HIF-1 pathway and cytochrome P450 in controlling responses to anoxia-reoxygenation are evolutionarily conserved.
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