Non-invasive detection of spatio-temporal activation of SBE and NFAT5 promoters in transgenic reporter mice following stroke.
Non-invasive detection of spatio-temporal activation of SBE and NFAT5 promoters in transgenic reporter mice following stroke.
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DOI:
10.1111/j.1440-1789.2011.01242.x
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发表时间:
2012-04
期刊:
影响因子:
--
通讯作者:
Eliceiri BP
中科院分区:
文献类型:
--
作者:
Shaterian A;Borboa A;Coimbra R;Baird A;Eliceiri BP
The characterization of molecular responses following cerebral ischemia-induced changes in animal models capable of undergoing real-time analysis is an important goal for stroke research. In this study, we use transgenic mice to examine the activation of two different promoters in a firefly luciferase reporter mouse analyzable through a non-invasive bioluminescent imaging system. In the first model, we examine the middle cerebral artery occlusion (MCAO)-induced activation of Smad-binding elements (SBE), a downstream target of Smad 1/2/3 transcription factors, in which SBEs regulate the expression of the fluc reporter. We observed that MCAO induces a bilateral activation (i.e. both ipsilateral and contralateral brain hemispheres) of the SBE-luc reporter with a peak at 24 hours. In the second model, we examined MCAO-induced activation of the osmolarity-sensitive promoter Nuclear factor of activated T-cells 5 (NFAT5) and identified a peak reporter expression 72 hours post-MCAO in the ipsilateral but not contralateral hemisphere. In each of these models, the assessment of post-MCAO fluc-expression provided both a quantitative measure (i.e. radiance in photons/sec/cm2/steradian) as well as qualitative localization of the molecular response following focal ischemic injury.
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影响因子:
20.1
作者:
Wilkins, BJ;Dai, YS;Molkentin, JD
通讯作者:
Molkentin, JD
影响因子:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.0605077103
发表时间:
2006-11-28
影响因子:
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作者:
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通讯作者:
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影响因子:
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