N-Methyl-N-nitrosourea


Associated AOPs with Level of Relevance - 1 AOPs with at least 1 KE associated with chemical, where the KE(s) are neither MIE nor AO

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:15Alkylation of DNA in male pre-meiotic germ cells leading to heritable mutationsGenetic diseaseWPHA/WNT EndorsedMus musculus, Drosophila melanogaster, Oryzias latipes, Syrian golden hamster0.25KE:155Inadequate DNA repair
AOP:27Cholestatic Liver Injury induced by Inhibition of the Bile Salt Export Pump (ABCB11)Gastrointestinal system diseaseUnder DevelopmentHumans0.12KE:149Increase, Inflammation
AOP:37PPARα activation leading to hepatocellular adenomas and carcinomas in rodentsCancer; Gastrointestinal system diseaseUnder DevelopmentMouse, Rat0.2KE:716Increase, cell proliferation (hepatocytes)
AOP:39Covalent Binding, Protein, leading to Increase, Allergic Respiratory Hypersensitivity ResponseRespiratory system diseaseUnder DevelopmentHuman, Mouse0.2KE:272Activation/Proliferation, T-cells
AOP:40Covalent Protein binding leading to Skin SensitisationIntegumentary system diseaseWPHA/WNT EndorsedMouse, Human0.2KE:272Activation/Proliferation, T-cells
AOP:41Sustained AhR Activation leading to Rodent Liver TumoursCancer; Gastrointestinal system diseaseUnder ReviewRattus sp. ABTC 42503, Mus sp. 20000820.4KE:854Alterations, Cellular proliferation / hyperplasia
KE:853Changes/Inhibition, Cellular Homeostasis and Apoptosis
AOP:64Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male FertilityReproductive system disease-Rattus norvegicus0.14KE:496Increased apoptosis, decreased fetal/adult Leydig Cells
AOP:80Nicotinic acetylcholine receptor activation contributes to accumulation of damaged mitochondrial DNA and leads to colony loss/failureUnclassified-Honey bee0.12KE:664Overwhelmed, Mitochondrial DNA repair mechanisms
AOP:105Alpha2u-microglobulin cytotoxicity leading to renal tubular adenomas and carcinomas (in male rat)Cancer; Urinary system disease-Rattus norvegicus0.17KE:710Increase, Regenerative cell proliferation (tubular epithelial cells)
AOP:107Constitutive androstane receptor activation leading to hepatocellular adenomas and carcinomas in the mouse and the ratCancer; Gastrointestinal system diseaseUnder ReviewRattus norvegicus, Mus musculus0.2KE:716Increase, cell proliferation (hepatocytes)
AOP:109Cytotoxicity leading to bronchioloalveolar adenomas and carcinomas (in mouse)Cancer; Respiratory system disease-Mus musculus0.2KE:734Increase, Regenerative cell proliferation (terminal bronchiolar epithelial cells)
AOP:110Inhibition of iodide pump activity leading to follicular cell adenomas and carcinomas (in rat and mouse)Cancer; Endocrine system disease-Rattus norvegicus, Mus musculus0.14KE:739Increase, Hypertrophy and proliferation (follicular cell)
AOP:114HPPD inhibition leading to corneal papillomas and carcinomas (in rat)Cancer-Rattus norvegicus0.17KE:778Increase, Regenerative cell proliferation (corneal cells)
AOP:115Epithelial cytotoxicity leading to forestomach tumors (in mouse and rat)Cancer-Mus musculus, Rattus norvegicus0.4KE:149Increase, Inflammation
KE:781Increase, Regenerative cell proliferation (forestomach epithelial cells)
AOP:116Cytotoxicity leading to renal tubular adenomas and carcinomas (in male rat)Cancer; Urinary system disease-Rattus norvegicus0.25KE:710Increase, Regenerative cell proliferation (tubular epithelial cells)
AOP:117Androgen receptor activation leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal system diseaseUnder DevelopmentMus musculus, Rattus norvegicus0.25KE:716Increase, cell proliferation (hepatocytes)
AOP:118Chronic cytotoxicity leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal system disease-Mus musculus, Rattus norvegicus0.25KE:787Increase, Regenerative cell proliferation (hepatocytes)
AOP:121Urinary bladder calculi leading to urothelial papillomas and carcinomas (in mouse and rat)Cancer; Urinary system disease-Mus musculus, Rattus norvegicus0.4KE:795Increase, Regenerative cell proliferation (urothelial cells)
KE:796Increase, Hyperplasia (urothelial)
AOP:136Intracellular Acidification Induced Olfactory Epithelial Injury Leading to Site of Contact Nasal TumorsBenign neoplasm; Respiratory system diseaseUnder Review0.14KE:870Increase, Cell Proliferation
AOP:164Beta-2 adrenergic agonist activity leading to mesovarian leiomyomas in the rat and mouseCancer; Reproductive system disease-CD-1 mouse, SD rat0.17KE:1042Proliferation/Clonal Expansion, smooth muscle
AOP:206Peroxisome proliferator-activated receptors γ inactivation leading to lung fibrosisMusculoskeletal system disease; Respiratory system diseaseUnder DevelopmentHomo sapiens0.17KE:149Increase, Inflammation
AOP:207NADPH oxidase and P38 MAPK activation leading to reproductive failure in Caenorhabditis elegansReproductive system disease-Caenorhabditis elegans0.25KE:1281Increased, DNA Damage-Repair
KE:1262Apoptosis
AOP:212Histone deacetylase inhibition leading to testicular atrophyReproductive system diseaseWPHA/WNT EndorsedRat, Human, Mouse0.17KE:1262Apoptosis
AOP:232NFE2/Nrf2 repression to steatosisGastrointestinal system disease; Inherited metabolic disorder-0.12KE:1419Reduced, FXR activity
AOP:263Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased cell proliferationUnclassifiedWPHA/WNT EndorsedZebrafish, Mouse, Rat, Lemna minor, Human, Caenorhabditis elegans0.25KE:1821Decrease, Cell proliferation
AOP:267Uncoupling of oxidative phosphorylation leading to growth inhibition via glucose depletionUnclassifiedUnder Development0.2KE:1821Decrease, Cell proliferation
AOP:280α-diketone-induced bronchiolitis obliteransMusculoskeletal system disease; Respiratory system disease-0.14KE:149Increase, Inflammation
AOP:286Mitochondrial complex III antagonism leading to growth inhibition (1)Unclassified-Lemna minor, Daphnia magna, Danio rerio0.25KE:1821Decrease, Cell proliferation
AOP:290Mitochondrial ATP synthase antagonism leading to growth inhibition (1)Unclassified-Daphnia magna0.25KE:1821Decrease, Cell proliferation
AOP:296Oxidative DNA damage leading to chromosomal aberrations and mutationsGenetic disease; Chromosomal diseaseWPHA/WNT EndorsedHuman, Mice, Rat, Fish0.2KE:155Inadequate DNA repair
AOP:322Alkylation of DNA leading to reduced sperm countReproductive system disease-0.2KE:155Inadequate DNA repair
AOP:331Excessive reactive oxygen species leading to growth inhibition via oxidative DNA damage and reduced cell proliferationUnclassified-Daphnia magna, Daphnia middendorffiana, Daphnia pulex, Daphnia pulicaria, Daphnia parvula0.17KE:1821Decrease, Cell proliferation
AOP:332Excessive reactive oxygen species leading to growth inhibition via lipid peroxidation and reduced cell proliferationUnclassified-0.2KE:1821Decrease, Cell proliferation
AOP:333Excessive reactive oxygen species leading to growth inhibition via uncoupling of oxidative phosphorylationUnclassified-0.2KE:1821Decrease, Cell proliferation
AOP:335AOP for urothelial carcinogenesis due to chemical cytotoxicity by mitochondrial impairmentCancer; Urinary system disease-Rat0.4KE:795Increase, Regenerative cell proliferation (urothelial cells)
KE:796Increase, Hyperplasia (urothelial)
AOP:397Bulky DNA adducts leading to mutationsGenetic diseaseUnder Development0.33KE:155Inadequate DNA repair
AOP:399Inhibition of Fyna leading to increased mortality via decreased eye size (Microphthalmos)Unclassified-Zebrafish0.12KE:1821Decrease, Cell proliferation
AOP:409Frustrated phagocytosis leads to malignant mesotheliomaCancer-0.12KE:870Increase, Cell Proliferation
AOP:419Aryl hydrocarbon receptor activation leading to impaired lung function through P53 toxicity pathwayRespiratory system disease-0.25KE:1262Apoptosis
AOP:432Deposition of Energy by Ionizing Radiation leading to Acute Myeloid LeukemiaHematopoietic system disease; Cancer-Homo sapiens, Mus musculus0.18KE:155Inadequate DNA repair
KE:870Increase, Cell Proliferation
AOP:439Activation of the AhR leading to metastatic breast cancerThoracic disease; CancerUnder DevelopmentHumans, Mice0.33KE:1971Increased, tumor growth
KE:149Increase, Inflammation
KE:1262Apoptosis
AOP:441Ionizing radiation-induced DNA damage leads to microcephaly via apoptosis and premature cell differentiationCongenital nervous system abnormality; Nervous system disease-Homo sapiens, Mus musculus musculus, Rattus norvegicus0.14KE:1262Apoptosis
AOP:443DNA damage and mutations leading to Metastatic Breast CancerThoracic disease; CancerUnder DevelopmentHuman and other cells in culture, Human, Mice, Rat, Canine heartworm nematode, Yeast0.2KE:155Inadequate DNA repair
KE:1554Increase Chromosomal Aberrations
AOP:446PM-related Adverse outcome pathway frameworks on various systemsRespiratory system disease-0.1KE:149Increase, Inflammation
KE:1262Apoptosis
AOP:452Adverse outcome pathway of PM-induced respiratory toxicityRespiratory system disease-0.09KE:1262Apoptosis
AOP:460Antagonism of Smoothened receptor leading to orofacial cleftingUnclassifiedUnder DevelopmentMouse0.22KE:1821Decrease, Cell proliferation
KE:1262Apoptosis
AOP:465Alcohol dehydrogenase leading to reproductive dysfunctionUnclassified-0.25KE:748Increased, Estrogen receptor (ER) activity
KE:2050Increase, developmental abnormalities
AOP:467Knickkopf leading to mortalityUnclassified-0.11KE:2050Increase, developmental abnormalities
AOP:472DNA adduct formation leading to kidney failureUrinary system disease-0.11KE:149Increase, Inflammation
AOP:478Deposition of energy leading to occurrence of cataractsNervous system disease; Monogenic diseaseUnder ReviewHuman, Mouse, Rat, Rhesus monkeys, Rabbit, Guinea pig0.2KE:155Inadequate DNA repair
KE:870Increase, Cell Proliferation
AOP:491Decrease, GLI1/2 target gene expression leads to orofacial cleftingUnclassifiedUnder DevelopmentMouse0.33KE:1821Decrease, Cell proliferation
KE:1262Apoptosis
AOP:500Activation of MEK-ERK1/2 leads to deficits in learning and cognition via ROS and apoptosisDevelopmental disorder of mental health-Rattus norvegicus, Mus musculus, Homo sapiens0.14KE:1262Apoptosis
AOP:535Binding and activation of GPER leading to learning and memory impairmentsDevelopmental disorder of mental health-Mouse, Human0.11KE:1262Apoptosis
AOP:540Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin ProductionUnclassified-0.11KE:1262Apoptosis
AOP:544Inhibition of neuropathy target esterase leading to delayed neuropathy via increased inflammationNervous system disease-Homo sapiens, Mus musculus0.17KE:149Increase, Inflammation
AOP:563Aryl hydrocarbon Receptor (AHR) activation causes Premature Ovarian Insufficiency via Bax mediated apoptosisReproductive system disease; Endocrine system disease-Rat, Mouse, Zebra fish, Human0.17KE:1262Apoptosis

Associated AOPs with Level of Relevance - 2 AOPs with at least 1 AO associated with chemical, and no associated MIE

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:6Antagonist binding to PPARα leading to body-weight lossSymptomWPHA/WNT EndorsedMus musculus, Homo sapiens, Pimephales promelas, Colinus virginianus, Rattus norvegicus0.12KE:864Decreased, Body Weight
AOP:19Androgen receptor antagonism leading to adverse effects in the male foetus (mammals)Reproductive system disease-0.2KE:337N/A, Impairment of reproductive capacity
AOP:112Increased dopaminergic activity leading to endometrial adenocarcinomas (in Wistar rat)Reproductive system disease; Cancer-Rattus norvegicus0.17KE:773Increase, Endometrial adenocarcinomas
AOP:124HMG-CoA reductase inhibition leading to decreased fertilityReproductive system disease-Rattus rattus0.17KE:330Decrease, Fertility
AOP:139Alkylation of DNA leading to cancer 1Cancer-Homo sapiens, Mus musculus0.5KE:885Increase, Cancer
KE:155Inadequate DNA repair
AOP:167Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse.Reproductive system disease; Cancer-Mouse, Homo sapiens0.29KE:1067Proliferation/Clonal Expansion, aberrant basal cells
KE:1070Increased, adenosquamous carcinomas of endometrium
AOP:205AOP from chemical insult to cell deathUnclassified-Vertebrates0.17KE:1262Apoptosis
AOP:272Deposition of energy leading to lung cancerCancerWPHA/WNT EndorsedHuman, Rat, Mouse0.43KE:155Inadequate DNA repair
KE:870Increase, Cell Proliferation
KE:1556Increase, lung cancer
AOP:278IKK complex inhibition leading to liver injuryUnclassified-0.12KE:1549Liver Injury
AOP:293Increased DNA damage leading to increased risk of breast cancerGenetic disease; Thoracic disease; CancerUnder DevelopmentRattus rattus, Mus musculus0.22KE:1193N/A, Breast Cancer
KE:1182Increase, Cell Proliferation (Epithelial Cells)
AOP:294Increased reactive oxygen and nitrogen species (RONS) leading to increased risk of breast cancerGenetic disease; Thoracic disease; CancerUnder Development0.22KE:1193N/A, Breast Cancer
KE:1182Increase, Cell Proliferation (Epithelial Cells)
AOP:298Increase in reactive oxygen species (ROS) leading to human treatment-resistant gastric cancer via chronic ROSCancer; Gastrointestinal system diseaseUnder ReviewHomo sapiens0.17KE:1651Treatment-resistant gastric cancer
AOP:303Frustrated phagocytosis-induced lung cancerCancerUnder DevelopmentMammals0.29KE:870Increase, Cell Proliferation
KE:1670Lung cancer
AOP:416Aryl hydrocarbon receptor activation leading to lung cancer through IL-6 toxicity pathwayCancer-0.17KE:1670Lung cancer
AOP:417Aryl hydrocarbon receptor activation leading to lung cancer through AHR-ARNT toxicity pathwayCancer-0.2KE:1670Lung cancer
AOP:420Aryl hydrocarbon receptor activation leading to lung cancer through sustained NRF2 toxicity pathwayCancer-0.5KE:870Increase, Cell Proliferation
KE:1670Lung cancer
AOP:451Interaction with lung resident cell membrane components leads to lung cancerCancer-Human0.22KE:870Increase, Cell Proliferation
KE:1670Lung cancer
AOP:463The AOP framwork on silica nanopariticles induced hepatoxicityGastrointestinal system disease-0.27KE:2034liver dysfunction
KE:149Increase, Inflammation
KE:1262Apoptosis
AOP:474Succinate dehydrogenase inactivation leads to cancer by promoting EMTCancerUnder DevelopmentHuman and other cells in culture0.2KE:885Increase, Cancer
AOP:495Androgen receptor activation leading to prostate cancerReproductive system disease; Cancer-0.33KE:854Alterations, Cellular proliferation / hyperplasia
KE:2135Prostate cancer
KE:1183Decreased, Apoptosis (Epithelial Cells)
AOP:503Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulationReproductive system disease; CancerUnder ReviewHuman, Mouse0.17KE:2154Uterine adenocarcinoma (endometrioid adenocarcinoma Type I)
AOP:505Reactive Oxygen Species (ROS) formation leads to cancer via inflammation pathwayCancer-Human, Mouse, Rat0.4KE:885Increase, Cancer
KE:149Increase, Inflammation
AOP:513Reactive Oxygen (ROS) formation leads to cancer via Peroxisome proliferation-activated receptor (PPAR) pathwayCancer-Human, Mouse, Rat0.2KE:885Increase, Cancer
AOP:534Succinate dehydrogenase (SDH) inhibition leads to cancer through oxidative stressCancer-Vertebrates0.17KE:885Increase, Cancer
AOP:546Succinate dehydrogenase inactivation leads to cancer through hypoxic-like mechanismsCancer-Human and other cells in culture0.2KE:885Increase, Cancer

Associated AOPs with Level of Relevance - 3 AOPs with at least 1 MIE associated with chemical, and no associated AO

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:42Inhibition of Thyroperoxidase and Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorderWPHA/WNT EndorsedHuman, Rat, Mouse0.12KE:279Thyroperoxidase, Inhibition
AOP:119Inhibition of thyroid peroxidase leading to follicular cell adenomas and carcinomas (in rat and mouse)Cancer; Endocrine system disease-Rattus norvegicus, Mus musculus0.29KE:279Thyroperoxidase, Inhibition
KE:739Increase, Hypertrophy and proliferation (follicular cell)
AOP:159Thyroperoxidase inhibition leading to increased mortality via reduced anterior swim bladder inflationUnclassifiedWPHA/WNT EndorsedZebrafish, Fathead minnow0.12KE:279Thyroperoxidase, Inhibition
AOP:175Thyroperoxidase inhibition leading to altered amphibian metamorphosisUnclassified-African clawed frog0.25KE:279Thyroperoxidase, Inhibition
AOP:271Inhibition of thyroid peroxidase leading to impaired fertility in fishUnclassifiedUnder DevelopmentFish0.2KE:279Thyroperoxidase, Inhibition
AOP:363Thyroperoxidase inhibition leading to altered visual function via altered retinal layer structureUnclassifiedUnder ReviewZebrafish0.12KE:279Thyroperoxidase, Inhibition
AOP:364Thyroperoxidase inhibition leading to altered visual function via decreased eye sizeUnclassifiedUnder Development0.12KE:279Thyroperoxidase, Inhibition
AOP:365Thyroperoxidase inhibition leading to altered visual function via altered photoreceptor patterningUnclassifiedUnder Development0.12KE:279Thyroperoxidase, Inhibition

No associated AOPs with Level of Relevance 5

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