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Comparing predictive drug nephrotoxicity biomarkers in kidney 3-D primary organoid culture and immortalized cell lines.

Abstract：

:The cellular microenvironment is recognized to play a key role in stabilizing cell differentiation states and phenotypes in culture. This study addresses the hypothesis that preservation of in vivo-like tissue architecture in vitro produces a cell culture more capable of responding to environmental stimuli with clinically relevant toxicity biomarkers. This was achieved using kidney proximal tubules in three-dimensional organoid hydrogel culture, with comparisons to conventional monolayer kidney cell cultures on plastic. Kidney proximal tubule cultures and two immortalized kidney cell line monolayer cultures exposed to known nephrotoxic drugs were evaluated for inflammatory cytokines, nephrotoxicity-associated genes, Kim-1 protein, cytochrome enzymes, and characteristic cellular enzyme shedding. Significant similarities are shown for these traditional biomarkers of kidney toxicity between in vivo and 3-D organoid endpoints of drug toxicity, and significantly, a consistent lack of clinically relevant endpoints produced by traditional 2-D kidney cell cultures. These findings impact both in vitro bioreactor-based kidney functional and regenerative medicine models, as well as high-throughput cell-based drug screening validations.

journal_name

Biomaterials

journal_title

Biomaterials

authors

Astashkina AI,Mann BK,Prestwich GD,Grainger DW

doi

10.1016/j.biomaterials.2012.03.001

subject

Has Abstract

pub_date

2012-06-01 00:00:00

pages

4712-21

issue

18

eissn

0142-9612

issn

1878-5905

pii

S0142-9612(12)00273-6

journal_volume

33

pub_type

杂志文章

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