Donor Microbiota Composition and Housing Affect Recapitulation of Obese Phenotypes in a Human Microbiota-Associated Murine Model.

Donor Microbiota Composition and Housing Affect Recapitulation of Obese Phenotypes in a Human Microbiota-Associated Murine Model.
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供体微生物群组成和住房影响人类微生物群相关小鼠模型中肥胖表型的重现。

DOI:
10.3389/fcimb.2021.614218
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发表时间:
2021
影响因子:
5.7
通讯作者:
Staley C
Staley C
中科院分区:
医学2区
文献类型:
--
作者:
Kaiser T;Nalluri H;Zhu Z;Staley C

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人类微生物群相关(HMA)小鼠模型为研究肠道微生物群在肥胖发展中的作用提供了一种有价值的方法。在这项研究中,我们使用HMA模型来评估来自三个供体中的每一个的人类肥胖或瘦微生物群的植入是否可以在常规和无特异性病原体的住房下重现宿主表型。微生物群植入与类杆菌的供体相对丰度相关(斯皮尔曼ρ = 0.73,P ≤ 0.001),一名肥胖供体在常规饲养条件下导致体重显著增加(P ≤ 0.003)和胰岛素敏感性受损。SPF住房部分钝化表型反应。这项研究的结果表明,我们的HMA模型部分概括了传统住房下的肥胖表型,并强调了在研究微生物群在肥胖中的作用时,需要考虑供体特异性效应以及住房条件。
Human microbiota-associated (HMA) mouse models offer a valuable approach to study the role of intestinal microbiota in the development of obesity. In this study, we used an HMA model to evaluate whether engraftment of human obese or lean microbiota, from each of three donors, could recapitulate host phenotypes under conventional and specific-pathogen-free housing. Microbiota engraftment was correlated with donor relative abundances of the class Bacteroidia (Spearman’s ρ = 0.73, P ≤ 0.001), and one obese donor resulted in significant weight gain (P ≤ 0.003) and compromised insulin sensitivity under conventional housing. SPF housing partially blunted phenotypic response. Results of this study indicate that our HMA model partially recapitulates obese phenotypes under conventional housing and highlights a need to consider donor-specific effects as well as housing conditions when studying the role of the microbiota in obesity.
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