Table 2.

Fit‐for purpose assays proposed in the REACT program

Endpoint of interestAssay proposed
High‐throughput transcriptomicsMetabolically competent human liver cells/MCF‐7 (Tempo‐Seq®)
Hepatotoxicity2D HepaRG® cells
Developmental toxicityZebrafish embryo assay
Developmental neurotoxicityMultielectrode array in neonatal cortical cells and neurite outgrowth
ImmunotoxicityCytokine alterations in human vascular endothelial cells (BioSeek®)
Hepatic clearanceMetabolic clearance in 50 donor‐pooled hepatocyte suspensions
Plasma protein bindingSerum protein binding assay using human serum
Enterohepatic recirculationQualyst B‐CLEAR® hepatocyte transporter assay
In vitro dispositionIn vitro disposition in cell lines under study
Endpoint of interestAssay proposed
High‐throughput transcriptomicsMetabolically competent human liver cells/MCF‐7 (Tempo‐Seq®)
Hepatotoxicity2D HepaRG® cells
Developmental toxicityZebrafish embryo assay
Developmental neurotoxicityMultielectrode array in neonatal cortical cells and neurite outgrowth
ImmunotoxicityCytokine alterations in human vascular endothelial cells (BioSeek®)
Hepatic clearanceMetabolic clearance in 50 donor‐pooled hepatocyte suspensions
Plasma protein bindingSerum protein binding assay using human serum
Enterohepatic recirculationQualyst B‐CLEAR® hepatocyte transporter assay
In vitro dispositionIn vitro disposition in cell lines under study

REACT = Responsive Evaluation and Assessment of Chemical Toxicity.

Table 2.

Fit‐for purpose assays proposed in the REACT program

Endpoint of interestAssay proposed
High‐throughput transcriptomicsMetabolically competent human liver cells/MCF‐7 (Tempo‐Seq®)
Hepatotoxicity2D HepaRG® cells
Developmental toxicityZebrafish embryo assay
Developmental neurotoxicityMultielectrode array in neonatal cortical cells and neurite outgrowth
ImmunotoxicityCytokine alterations in human vascular endothelial cells (BioSeek®)
Hepatic clearanceMetabolic clearance in 50 donor‐pooled hepatocyte suspensions
Plasma protein bindingSerum protein binding assay using human serum
Enterohepatic recirculationQualyst B‐CLEAR® hepatocyte transporter assay
In vitro dispositionIn vitro disposition in cell lines under study
Endpoint of interestAssay proposed
High‐throughput transcriptomicsMetabolically competent human liver cells/MCF‐7 (Tempo‐Seq®)
Hepatotoxicity2D HepaRG® cells
Developmental toxicityZebrafish embryo assay
Developmental neurotoxicityMultielectrode array in neonatal cortical cells and neurite outgrowth
ImmunotoxicityCytokine alterations in human vascular endothelial cells (BioSeek®)
Hepatic clearanceMetabolic clearance in 50 donor‐pooled hepatocyte suspensions
Plasma protein bindingSerum protein binding assay using human serum
Enterohepatic recirculationQualyst B‐CLEAR® hepatocyte transporter assay
In vitro dispositionIn vitro disposition in cell lines under study

REACT = Responsive Evaluation and Assessment of Chemical Toxicity.

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