The endogenous exposome.

The endogenous exposome.
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DOI:
10.1016/j.dnarep.2014.03.031
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发表时间:
2014-07
期刊:
影响因子:
3.8
通讯作者:
Swenberg, James
Swenberg, James
中科院分区:
医学3区
文献类型:
--
作者:
Nakamura, Jun;Mutlu, Esra;Sharma, Vyom;Collins, Leonard;Bodnar, Wanda;Yu, Rui;Lai, Yongquan;Moeller, Benjamin;Lu, Kun;Swenberg, James

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Exposome的概念是对疾病和一个人的一生接触化学品的汇编,无论这种接触是来自环境、饮食或职业暴露,还是由正常代谢、炎症、氧化应激、脂质过氧化、感染和其他自然代谢过程形成的内源性化学物质,如肠道微生物群的改变。在这篇综述中,我们主要关注内源性暴露体,这是一种由细胞内产生的内源性亲电分子引起的DNA损伤。它提供了关于内源性DNA损伤及其与诱变的关系的定量数据,重点是当产生与正常代谢产生的相同DNA加合物的外源化学暴露导致完全相同的DNA加合物显著增加时。我们利用稳定同位素标记的动物和细胞的化学暴露,因此可以确定内源性和外源性暴露之间的准确关系。质谱学的进步极大地提高了此类研究的灵敏度和准确性。此外,我们有明确的证据表明,哪些暴露来源推动了导致突变和疾病的低剂量生物学。这些数据提供了影响量化风险评估的迫切需要的信息,希望转向使用科学,而不是默认假设。
The concept of the Exposome, is a compilation of diseases and one’s lifetime exposure to chemicals, whether the exposure comes from environmental, dietary, or occupational exposures; or endogenous chemicals that are formed from normal metabolism, inflammation, oxidative stress, lipid peroxidation, infections, and other natural metabolic processes such as alteration of the gut microbiome. In this review, we have focused on the Endogenous Exposome, the DNA damage that arises from the production of endogenous electrophilic molecules in our cells. It provides quantitative data on endogenous DNA damage and its relationship to mutagenesis, with emphasis on when exogenous chemical exposures that produce identical DNA adducts to those arising from normal metabolism cause significant increases in total identical DNA adducts. We have utilized stable isotope labeled chemical exposures of animals and cells, so that accurate relationships between endogenous and exogenous exposures can be determined. Advances in mass spectrometry have vastly increased both the sensitivity and accuracy of such studies. Furthermore, we have clear evidence of which sources of exposure drive low dose biology that results in mutations and disease. These data provide much needed information to impact quantitative risk assessments, in the hope of moving towards the use of science, rather than default assumptions.
DOI: 10.1016/j.jchromb.2009.12.004
发表时间: 2010-02-01
影响因子: 3
作者:
Boysen, Gunnar;Collins, Leonard B.;Swenberg, James A.
通讯作者: Swenberg, James A.
DOI: 10.1006/faat.1994.1137
发表时间: 1994-11-01
期刊: FUNDAMENTAL AND APPLIED TOXICOLOGY
影响因子: --
作者:
CASANOVA, M;MORGAN, KT;HECK, HD
通讯作者: HECK, HD
DOI: 10.1016/s0361-090x(02)00093-4
发表时间: 2002-01-01
影响因子: --
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Bartsch, H;Nair, J
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DOI: 10.1016/0027-5107(90)90173-2
发表时间: 1990-07-01
期刊: MUTATION RESEARCH
影响因子: --
作者:
BERANEK, DT
通讯作者: BERANEK, DT