Journal
ISCIENCE
Volume 24, Issue 11, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.isci.2021.103235
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Funding
- Swedish Research Council [2822, 01951]
- Swedish Cancer Society
- Tore Nilsson foundation [00754]
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This study investigated the influence of various culture conditions on spheroid cultures of primary human hepatocytes (PHH) to find optimal conditions for maintaining an in vivo-like phenotype. The medium composition was found to affect spheroid histology, global proteome profile, drug metabolism, and drug-induced toxicity. Maintaining healthy PHH with functional features is crucial for more reproducible hepatocyte research.
Spheroid cultures of primary human hepatocytes (PHH) are used in studies of hepatic drug metabolism and toxicity. The cultures are maintained under different cone-lions, with possible confounding results. We performed an in-depth analysis of the influence of various culture conditions to find the optimal conditions for the maintenance of an in vivo like phenotype. The formation, protein expression, and function of PHH spheroids were followed for three weeks in a high-throughput 384-well format. Medium composition affected spheroid histology, global proteome profile, drug metabolism and drug-induced toxicity. No epithelial-mesenchymel transition was observed. Media with fasting glucose and insulin levels gave spheroids with phenotypes closest to normal PHH. The most expensive medium resulted in PHH features most divergent from that of native PHH. Our results provide a protocol for culture of healthy PHH with maintained function a prerequisite for studies of hepatocyte homeostasis and more reproducible hepatocyte research.
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