DEDUCT | Database of Endocrine Disrupting chemicals and their Toxicity profiles

Busulfan

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:21	Aryl hydrocarbon receptor activation leading to early life stage mortality, via increased COX-2	Unclassified	WPHA/WNT Endorsed	Zebrafish, Medaka, Gallus gallus	0.2	KE:317	Altered, Cardiovascular development/function
AOP:41	Sustained AhR Activation leading to Rodent Liver Tumours	Cancer; Gastrointestinal system disease	Under Review	Rattus sp. ABTC 42503, Mus sp. 2000082	0.6	KE:854	Alterations, Cellular proliferation / hyperplasia
						KE:853	Changes/Inhibition, Cellular Homeostasis and Apoptosis
						KE:139	N/A, Hepatotoxicity, Hepatopathy, including a constellation of observable effects
AOP:64	Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male Fertility	Reproductive system disease	-	Rattus norvegicus	0.14	KE:496	Increased apoptosis, decreased fetal/adult Leydig Cells
AOP:111	Decrease in androgen receptor activity leading to Leydig cell tumors (in rat)	Cancer; Reproductive system disease	-	Rattus norvegicus	0.2	KE:754	Increased, Luteinizing hormone (LH)
AOP:120	Inhibition of 5α-reductase leading to Leydig cell tumors (in rat)	Cancer; Reproductive system disease	-	Rattus norvegicus, Mus musculus	0.2	KE:791	Increased, Leutinizing hormone (LH)
AOP:150	Aryl hydrocarbon receptor activation leading to early life stage mortality, via reduced VEGF	Unclassified	WPHA/WNT Endorsed	Chicken, Zebrafish, Mouse, Rattus norvegicus	0.14	KE:317	Altered, Cardiovascular development/function
AOP:207	NADPH oxidase and P38 MAPK activation leading to reproductive failure in Caenorhabditis elegans	Reproductive system disease	-	Caenorhabditis elegans	0.12	KE:1262	Apoptosis
AOP:212	Histone deacetylase inhibition leading to testicular atrophy	Reproductive system disease	WPHA/WNT Endorsed	Rat, Human, Mouse	0.17	KE:1262	Apoptosis
AOP:220	Cyp2E1 Activation Leading to Liver Cancer	Cancer; Gastrointestinal system disease	WPHA/WNT Endorsed	Rodents, Homo sapiens	0.2	KE:1393	Hepatocytotoxicity
AOP:263	Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased cell proliferation	Unclassified	WPHA/WNT Endorsed	Zebrafish, Mouse, Rat, Lemna minor, Human, Caenorhabditis elegans	0.25	KE:1821	Decrease, Cell proliferation
AOP:267	Uncoupling of oxidative phosphorylation leading to growth inhibition via glucose depletion	Unclassified	Under Development		0.2	KE:1821	Decrease, Cell proliferation
AOP:286	Mitochondrial complex III antagonism leading to growth inhibition (1)	Unclassified	-	Lemna minor, Daphnia magna, Danio rerio	0.25	KE:1821	Decrease, Cell proliferation
AOP:290	Mitochondrial ATP synthase antagonism leading to growth inhibition (1)	Unclassified	-	Daphnia magna	0.25	KE:1821	Decrease, Cell proliferation
AOP:321	Reduced environmental pH leading to thinner shells in Mytilus edulis	Unclassified	-		0.09	KE:10042	Abnormal development
AOP:331	Excessive reactive oxygen species leading to growth inhibition via oxidative DNA damage and reduced cell proliferation	Unclassified	-	Daphnia magna, Daphnia middendorffiana, Daphnia pulex, Daphnia pulicaria, Daphnia parvula	0.17	KE:1821	Decrease, Cell proliferation
AOP:332	Excessive reactive oxygen species leading to growth inhibition via lipid peroxidation and reduced cell proliferation	Unclassified	-		0.2	KE:1821	Decrease, Cell proliferation
AOP:333	Excessive reactive oxygen species leading to growth inhibition via uncoupling of oxidative phosphorylation	Unclassified	-		0.2	KE:1821	Decrease, Cell proliferation
AOP:399	Inhibition of Fyna leading to increased mortality via decreased eye size (Microphthalmos)	Unclassified	-	Zebrafish	0.12	KE:1821	Decrease, Cell proliferation
AOP:419	Aryl hydrocarbon receptor activation leading to impaired lung function through P53 toxicity pathway	Respiratory system disease	-		0.25	KE:1262	Apoptosis
AOP:438	reactive oxygen species generation leading to increased cardiovascular morbidity and mortality	Cardiovascular system disease	-		0.08	KE:1919	Increased, Cardiac Dysregulation
AOP:439	Activation of the AhR leading to metastatic breast cancer	Thoracic disease; Cancer	Under Development	Humans, Mice	0.11	KE:1262	Apoptosis
AOP:441	Ionizing radiation-induced DNA damage leads to microcephaly via apoptosis and premature cell differentiation	Congenital nervous system abnormality; Nervous system disease	-	Homo sapiens, Mus musculus musculus, Rattus norvegicus	0.14	KE:1262	Apoptosis
AOP:443	DNA damage and mutations leading to Metastatic Breast Cancer	Thoracic disease; Cancer	Under Development	Human and other cells in culture, Human, Mice, Rat, Canine heartworm nematode, Yeast	0.1	KE:112	Antagonism, Estrogen receptor
AOP:446	PM-related Adverse outcome pathway frameworks on various systems	Respiratory system disease	-		0.1	KE:1458	Pulmonary fibrosis
AOP:446		Respiratory system disease	-		0.1	KE:1262	Apoptosis
AOP:452	Adverse outcome pathway of PM-induced respiratory toxicity	Respiratory system disease	-		0.09	KE:1262	Apoptosis
AOP:456	Aryl hydrocarbon receptor activation leading to early life stage mortality via sox9 repression induced cardiovascular toxicity	Unclassified	Under Review	Zebrafish, Mouse, Human, Chicken	0.17	KE:317	Altered, Cardiovascular development/function
AOP:460	Antagonism of Smoothened receptor leading to orofacial clefting	Unclassified	Under Development	Mouse	0.22	KE:1821	Decrease, Cell proliferation
AOP:460		Unclassified	Under Development	Mouse	0.22	KE:1262	Apoptosis
AOP:463	The AOP framwork on silica nanopariticles induced hepatoxicity	Gastrointestinal system disease	-		0.09	KE:1262	Apoptosis
AOP:465	Alcohol dehydrogenase leading to reproductive dysfunction	Unclassified	-		0.12	KE:748	Increased, Estrogen receptor (ER) activity
AOP:491	Decrease, GLI1/2 target gene expression leads to orofacial clefting	Unclassified	Under Development	Mouse	0.33	KE:1821	Decrease, Cell proliferation
AOP:491		Unclassified	Under Development	Mouse	0.33	KE:1262	Apoptosis
AOP:495	Androgen receptor activation leading to prostate cancer	Reproductive system disease; Cancer	-		0.22	KE:854	Alterations, Cellular proliferation / hyperplasia
AOP:495	Androgen receptor activation leading to prostate cancer	Reproductive system disease; Cancer	-		0.22	KE:1183	Decreased, Apoptosis (Epithelial Cells)
AOP:500	Activation of MEK-ERK1/2 leads to deficits in learning and cognition via ROS and apoptosis	Developmental disorder of mental health	-	Rattus norvegicus, Mus musculus, Homo sapiens	0.14	KE:1262	Apoptosis
AOP:535	Binding and activation of GPER leading to learning and memory impairments	Developmental disorder of mental health	-	Mouse, Human	0.11	KE:1262	Apoptosis
AOP:540	Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin Production	Unclassified	-		0.11	KE:1262	Apoptosis
AOP:563	Aryl hydrocarbon Receptor (AHR) activation causes Premature Ovarian Insufficiency via Bax mediated apoptosis	Reproductive system disease; Endocrine system disease	-	Rat, Mouse, Zebra fish, Human	0.17	KE:1262	Apoptosis

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:19	Androgen receptor antagonism leading to adverse effects in the male foetus (mammals)	Reproductive system disease	-		0.2	KE:337	N/A, Impairment of reproductive capacity
AOP:124	HMG-CoA reductase inhibition leading to decreased fertility	Reproductive system disease	-	Rattus rattus	0.17	KE:330	Decrease, Fertility
AOP:173	Substance interaction with the pulmonary resident cell membrane components leading to pulmonary fibrosis	Musculoskeletal system disease; Respiratory system disease	WPHA/WNT Endorsed	Human, Mouse, Rat	0.12	KE:1458	Pulmonary fibrosis
AOP:205	AOP from chemical insult to cell death	Unclassified	-	Vertebrates	0.17	KE:1262	Apoptosis
AOP:206	Peroxisome proliferator-activated receptors γ inactivation leading to lung fibrosis	Musculoskeletal system disease; Respiratory system disease	Under Development	Homo sapiens	0.17	KE:1276	Lung fibrosis
AOP:241	Latent Transforming Growth Factor beta1 activation leads to pulmonary fibrosis	Musculoskeletal system disease; Respiratory system disease	-		0.17	KE:1458	Pulmonary fibrosis
AOP:269	Elevated ATP demand for detoxification and repair mechanisms leading to impaired growth and development	Unclassified	-		0.17	KE:10013	Impaired growth and development
AOP:347	Toll-like receptor 4 activation and peroxisome proliferator-activated receptor gamma inactivation leading to pulmonary fibrosis	Musculoskeletal system disease; Respiratory system disease	-		0.11	KE:1458	Pulmonary fibrosis
AOP:382	Angiotensin II type 1 receptor (AT1R) agonism leading to lung fibrosis	Musculoskeletal system disease; Respiratory system disease	Under Development		0.17	KE:1276	Lung fibrosis
AOP:384	Hyperactivation of ACE/Ang-II/AT1R axis leading to chronic kidney disease	Urinary system disease	-		0.17	KE:1603	Chronic kidney disease
AOP:414	Aryl hydrocarbon receptor activation leading to lung fibrosis through TGF-β dependent fibrosis toxicity pathway	Musculoskeletal system disease; Respiratory system disease	-		0.4	KE:1920	Altered gene expression, TGF-β dependent fibrosis pathway
AOP:414		Musculoskeletal system disease; Respiratory system disease	-		0.4	KE:1276	Lung fibrosis
AOP:415	Aryl hydrocarbon receptor activation leading to lung fibrosis through IL-6 toxicity pathway	Musculoskeletal system disease; Respiratory system disease	-		0.2	KE:1276	Lung fibrosis
AOP:498	Increased LCN2/iron complex leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.5	KE:2150	Neurological disorder
AOP:498		Nervous system disease	-	Homo sapiens	0.5	KE:191	Neuronal dysfunction
AOP:501	Excessive iron accumulation leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.25	KE:2150	Neurological disorder
AOP:504	SULT1E1 inhibition leading to uterine adenocarcinoma via increased estrogen availability at target organ level	Unclassified	-	Mammals	0.33	KE:1065	Activation, estrogen receptor alpha
AOP:561	Aromatase induction leading to estrogen receptor alpha activation via increased estradiol	Unclassified	-	Vertebrates	0.2	KE:1065	Activation, estrogen receptor alpha

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:30	Estrogen receptor antagonism leading to reproductive dysfunction	Unclassified	Under Review	Zebra danio, Fathead minnow, Medaka	0.17	KE:112	Antagonism, Estrogen receptor
AOP:42	Inhibition of Thyroperoxidase and Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	WPHA/WNT Endorsed	Human, Rat, Mouse	0.12	KE:279	Thyroperoxidase, Inhibition
AOP:118	Chronic cytotoxicity leading to hepatocellular adenomas and carcinomas (in mouse and rat)	Cancer; Gastrointestinal system disease	-	Mus musculus, Rattus norvegicus	0.25	KE:786	Increase, Cytotoxicity (hepatocytes)
AOP:119	Inhibition of thyroid peroxidase leading to follicular cell adenomas and carcinomas (in rat and mouse)	Cancer; Endocrine system disease	-	Rattus norvegicus, Mus musculus	0.14	KE:279	Thyroperoxidase, Inhibition
AOP:159	Thyroperoxidase inhibition leading to increased mortality via reduced anterior swim bladder inflation	Unclassified	WPHA/WNT Endorsed	Zebrafish, Fathead minnow	0.12	KE:279	Thyroperoxidase, Inhibition
AOP:167	Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse.	Reproductive system disease; Cancer	-	Mouse, Homo sapiens	0.29	KE:1065	Activation, estrogen receptor alpha
AOP:167		Reproductive system disease; Cancer	-	Mouse, Homo sapiens	0.29	KE:1064	prepubertal increase, Estrogen receptor (ER) activity
AOP:175	Thyroperoxidase inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.25	KE:279	Thyroperoxidase, Inhibition
AOP:271	Inhibition of thyroid peroxidase leading to impaired fertility in fish	Unclassified	Under Development	Fish	0.2	KE:279	Thyroperoxidase, Inhibition
AOP:314	Binding to estrogen receptor (ER)-α in immune cells leading to exacerbation of systemic lupus erythematosus (SLE)	Immune system disease; Musculoskeletal system disease	Under Development	Homo sapiens	0.2	KE:1710	Binding to estrogen receptor (ER)-α in immune cells
AOP:363	Thyroperoxidase inhibition leading to altered visual function via altered retinal layer structure	Unclassified	Under Review	Zebrafish	0.12	KE:279	Thyroperoxidase, Inhibition
AOP:364	Thyroperoxidase inhibition leading to altered visual function via decreased eye size	Unclassified	Under Development		0.12	KE:279	Thyroperoxidase, Inhibition
AOP:365	Thyroperoxidase inhibition leading to altered visual function via altered photoreceptor patterning	Unclassified	Under Development		0.12	KE:279	Thyroperoxidase, Inhibition
AOP:440	Hypothalamus estrogen receptors activity suppression leading to ovarian cancer via ovarian epithelial cell hyperplasia	Benign neoplasm; Endocrine system disease; Reproductive system disease; Reproductive system disease; Cancer; Endocrine system disease	Under Development	Human, Rat, Mice	0.11	KE:1046	Suppression, Estrogen receptor (ER) activity
AOP:445	Estrogen Receptor Alpha Agonism leads to Impaired Reproduction	Reproductive system disease	-		0.12	KE:1065	Activation, estrogen receptor alpha
AOP:493	ERa inactivation alters AT expansion and functions and leads to insulin resistance and metabolically unhealthy obesity	Acquired metabolic disease	-	Mus musculus, Homo sapiens	0.1	KE:2126	Estrogen receptor alpha inactivation
AOP:497	ERa inactivation alters mitochondrial functions and insulin signalling in skeletal muscle and leads to insulin resistance and metabolic syndrome	Inherited metabolic disorder; Disease of metabolism	-		0.12	KE:2126	Estrogen receptor alpha inactivation
AOP:503	Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulation	Reproductive system disease; Cancer	Under Review	Human, Mouse	0.17	KE:1065	Activation, estrogen receptor alpha

No associated AOPs with Level of Relevance 5

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We have built a comprehensive resource which compiles potential endocrine disrupting chemicals (EDCs) based on the observed adverse effects or endocrine-mediated endpoints in published experiments on humans or rodents to support basic research. We are not responsible for any errors or omissions in the published research articles or supporting literature on potential EDCs compiled in this resource. Users are advised to exercise their own judgement on the weight of evidence for potential EDCs compiled in this resource. Importantly, our sole goal to build this resource on potential EDCs is to enable future basic research towards better understanding of the systems-level perturbations upon chemical exposure rather than influencing regulatory advice on chemical use.