Metabolomic changes in gastrointestinal tissues after whole body radiation in a murine model.

Metabolomic changes in gastrointestinal tissues after whole body radiation in a murine model.
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DOI:
10.1039/c3mb25454b
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发表时间:
2013-04-05
影响因子:
--
通讯作者:
Cheema AK
Cheema AK
中科院分区:
生物3区
文献类型:
--
作者:
Ghosh SP;Singh R;Chakraborty K;Kulkarni S;Uppal A;Luo Y;Kaur P;Pathak R;Kumar KS;Hauer-Jensen M;Cheema AK

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电离辐射(IR)暴露引发了一系列复杂的生物学反应,涉及基因表达和蛋白质周转,最终表现为代表细胞表型的代谢过程失调。尽管在尿液和血清中已经报道了辐射生物标志物,但它们不能提供关于IR介导的组织或器官特异性损伤的信息。在本研究中,我们报告IR诱导的CD 2F1小鼠胃肠(GI)组织的代谢变化,使用超高效液相色谱(UPLC)与电喷雾飞行时间质谱联用。辐射后胃肠道损伤是暴露于IR后生存的关键决定因素。我们的研究结果显示了对胃肠道组织损伤的明显剂量和时间依赖性反应。
Exposure to ionizing radiation (IR) elicits a set of complex biological responses involving gene expression and protein turnover that ultimately manifest as dysregulation of metabolic processes representing the cellular phenotype. Although radiation biomarkers have been reported in urine and serum, they are not informative about IR mediated tissue or organ specific injury. In the present study we report IR induced metabolic changes in gastrointestinal (GI) tissue of CD2F1 mice using ultra-performance liquid chromatography (UPLC) coupled with electrospray time-of-flight mass spectrometry. Post-radiation GI injury is a critical determinant of survival after exposure to IR. Our results show a distinct dose and time dependent response to GI tissue injury.
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