Data from: A rat liver transcriptomic point of departure predicts a prospective liver or non-liver apical point of departure
Data files
Jun 04, 2020 version files 16.28 GB
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Supplementary_File_1_Apical_Data_Graphs.pdf
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Supplementary_File_10_TGGATES_4Day_BM2File.bm2
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Supplementary_File_11_TGGATES_8Day_BM2File.bm2
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Supplementary_File_12_TGGATES_15Day_BM2File.bm2
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Supplementary_File_13_TGGATES_29Day_BM2File.bm2
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Supplementary_File_14_TGGATES_3Hour_BMDExpressGeneLevelData.txt
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Supplementary_File_15_TGGATES_6Hour_BMDExpressGeneLevelData.txt
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Supplementary_File_16_TGGATES_9Hour_BMDExpressGeneLevelData.txt
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Supplementary_File_17_TGGATES_24Hour_BMDExpressGeneLevelData.txt
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Supplementary_File_18_TGGATES_4Day_BMDExpressGeneLevelData.txt
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Supplementary_File_19_TGGATES_8Day_BMDExpressGeneLevelData.txt
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Supplementary_File_2_Body_Weight_Data.xlsx
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Supplementary_File_20_TGGATES_15Day_BMDExpressGeneLevelData.txt
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Supplementary_File_21_TGGATES_29Day_BMDExpressGeneLevelData.txt
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Supplementary_File_22_TGGATES_3Hour_BMDExpressFunctionalClassification.txt
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Supplementary_File_23_TGGATES_6Hour_BMDExpressFunctionalClassification.txt
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Supplementary_File_24_TGGATES_9Hour_BMDExpressFunctionalClassification.txt
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Supplementary_File_25_TGGATES_24Hour_BMDExpressFunctionalClassification_1.txt
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Supplementary_File_26_TGGATES_24Hour_BMDExpressFunctionalClassification_2.txt
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Supplementary_File_27_TGGATES_4Day_BMDExpressFunctionalClassification.txt
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Supplementary_File_28_TGGATES_8Day_BMDExpressFunctionalClassification.txt
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Supplementary_File_29_TGGATES_15Day_BMDExpressFunctionalClassification.txt
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Supplementary_File_3_Relative_Liver_Weight.xlsx
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Supplementary_File_30_TGGATES_29Day_BMDExpressFunctionalClassification.txt
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Supplementary_File_31_POD_Concordance_of_Test_and_Training_Sets-2.pdf
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Supplementary_File_31_POD_Concordance_of_Test_and_Training_Sets.pdf
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Supplementary_File_4_Relative_Kidney_Weight.xlsx
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Supplementary_File_5_BMDS_Model_Parameter_Options.xlsx
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Supplementary_File_6_TGGATES_3Hour_BM2File.bm2
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Supplementary_File_7_TGGATES_6Hour_BM2File.bm2
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Supplementary_File_8_TGGATES_9Hour_BM2File.bm2
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Supplementary_File_9_TGGATES_24Hour_BM2File.bm2
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Tables_S1_to_S10.xlsx
Abstract
Identifying a toxicity point of departure (POD) is a required step in human health risk characterization of crop protection molecules, and this POD has historically been derived from apical endpoints across a battery of animal-based toxicology studies. Using rat transcriptome and apical data for 79 molecules obtained from Open TG-GATES (Toxicogenomics Project-Genomics Assisted Toxicity Evaluation System) (632 datasets), the hypothesis was tested that a short-term exposure, transcriptome-based liver biological effect POD (BEPOD) could estimate a longer-term exposure “systemic” apical endpoint POD. Apical endpoints considered were body weight, clinical observation, kidney weight and histopathology and liver weight and histopathology. A BMDExpress algorithm using Gene Ontology Biological Process gene sets was optimized to derive a liver BEPOD most predictive of a systemic apical POD. Liver BEPODs were stable from 3 hours to 29 days of exposure; the median fold difference of the 29 day BEPOD to BEPODs from earlier time points was approximately 1 (range of 0.7-1.1). Strong positive correlation (Pearson R = 0.86) and predictive accuracy (root mean square difference = 0.41) were observed between a concurrent (29 day) liver BEPOD and the systemic apical POD. Similar Pearson R and root mean square difference values were observed for comparisons between a 29 day systemic apical POD and liver BEPODs derived from 3 hours to 15 days of exposure. These data across 79 molecules suggest that a longer-term exposure study apical POD from liver and non-liver compartments can be estimated using a liver BEPOD derived from an acute or subacute exposure study.