Mathematical modelling of oxygen gradients in stem cell-derived liver tissue.
Mathematical modelling of oxygen gradients in stem cell-derived liver tissue.
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DOI:
10.1371/journal.pone.0244070
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发表时间:
2021
期刊:
影响因子:
3.7
通讯作者:
Hay DC
中科院分区:
文献类型:
--
作者:
Leedale JA;Lucendo-Villarin B;Meseguer-Ripolles J;Kasarinaite A;Webb SD;Hay DC
A major bottleneck in the study of human liver physiology is the provision of stable liver tissue in sufficient quantity. As a result, current approaches to modelling human drug efficacy and toxicity rely heavily on immortalized human and animal cell lines. These models are informative but do possess significant drawbacks. To address the issues presented by those models, researchers have turned to pluripotent stem cells (PSCs). PSCs can be generated from defined genetic backgrounds, are scalable, and capable of differentiation to all the cell types found in the human body, representing an attractive source of somatic cells for in vitro and in vivo endeavours. Although unlimited numbers of somatic cell types can be generated in vitro, their maturation still remains problematic. In order to develop high fidelity PSC-derived liver tissue, it is necessary to better understand the cell microenvironment in vitro including key elements of liver physiology. In vivo a major driver of zonated liver function is the oxygen gradient that exists from periportal to pericentral regions. In this paper, we demonstrate how cell culture conditions for PSC-derived liver sphere systems can be optimised to recapitulate physiologically relevant oxygen gradients by using mathematical modelling. The mathematical model incorporates some often-understated features and mechanisms of traditional spheroid systems such as cell-specific oxygen uptake, media volume, spheroid size, and well dimensions that can lead to a spatially heterogeneous distribution of oxygen. This mathematical modelling approach allows for the calibration and identification of culture conditions required to generate physiologically realistic function within the microtissue through recapitulation of the in vivo microenvironment.
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DOI:
10.1186/1476-5926-7-4
发表时间:
2008-05-05
期刊:
Comparative hepatology
影响因子:
--
作者:
Martinez I;Nedredal GI;Øie CI;Warren A;Johansen O;Le Couteur DG;Smedsrød B
通讯作者:
Smedsrød B
DOI:
10.1039/c6tb00331a
发表时间:
2016-05-28
期刊:
Journal of materials chemistry. B
影响因子:
--
作者:
Lucendo-Villarin B;Rashidi H;Cameron K;Hay DC
通讯作者:
Hay DC
影响因子:
3.8
作者:
Shipley, R. J.;Davidson, A. J.;Chan, K.;Chaudhuri, J. B.;Waters, S. L.;Ellis, M. J.
通讯作者:
Ellis, M. J.
影响因子:
3.8
作者:
Glicklis, R;Merchuk, JC;Cohen, S
通讯作者:
Cohen, S
影响因子:
2.8
作者:
Hu, Guoqing;Li, Dongqing
通讯作者:
Li, Dongqing