Publications by authors named "Rob Van Rossom"

Article Synopsis
  • Human pluripotent stem cell-derived hepatocyte-like cells (HLCs) are promising for liver disease studies, drug testing, and toxicity evaluations but face challenges like high production costs and complex differentiation processes.
  • An automated liquid handling system was used in the differentiation of HLCs, significantly reducing costs by about 79% and allowing for the screening of cheaper alternatives to growth factors.
  • The study found that using a combination of small molecules and Laminin-521 produced HLCs with similar characteristics and functionality to those made with traditional growth factors, enabling a scalable and cost-effective method for HLC production.
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Tagging of endogenous stress response genes can provide valuable in vitro models for chemical safety assessment. Here, we present the generation and application of a fluorescent human induced pluripotent stem cell (hiPSC) reporter line for Heme oxygenase-1 (HMOX1), which is considered a sensitive and reliable biomarker for the oxidative stress response. CRISPR/Cas9 technology was used to insert an enhanced green fluorescent protein (eGFP) at the C-terminal end of the endogenous HMOX1 gene.

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Reprogramming can occur by the introduction of key transcription factors (TFs) as well as by epigenetic changes. We demonstrated that histone deacetylase inhibitor (HDACi) Trichostatin A (TSA) combined with a chromatin remodeling medium (CRM) induced expression of a number of definitive endoderm and early and late pancreatic marker genes. When CRM was omitted, endoderm/pancreatic marker genes were not induced.

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