DEDUCT | Database of Endocrine Disrupting chemicals and their Toxicity profiles

2,4,4'-Trichlorobiphenyl

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:8	Upregulation of Thyroid Hormone Catabolism via Activation of Hepatic Nuclear Receptors, and Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Nervous system disease	Under Development	Rat	0.11	KE:281	Thyroxine (T4) in serum, Decreased
AOP:54	Inhibition of Na+/I- symporter (NIS) leads to learning and memory impairment	Developmental disorder of mental health	WPHA/WNT Endorsed	Homo sapiens, Rattus sp.	0.1	KE:281	Thyroxine (T4) in serum, Decreased
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:110	Inhibition of iodide pump activity leading to follicular cell adenomas and carcinomas (in rat and mouse)	Cancer; Endocrine system disease	-	Rattus norvegicus, Mus musculus	0.14	KE:281	Thyroxine (T4) in serum, Decreased
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:281	Thyroxine (T4) in serum, Decreased
AOP:128	Kidney dysfunction by decreased thyroid hormone	Urinary system disease	Under Development	Sprague-Dawley, Homo sapiens	0.09	KE:281	Thyroxine (T4) in serum, Decreased
AOP:159	Thyroperoxidase inhibition leading to increased mortality via reduced anterior swim bladder inflation	Unclassified	WPHA/WNT Endorsed	Zebrafish, Fathead minnow	0.12	KE:281	Thyroxine (T4) in serum, Decreased
AOP:175	Thyroperoxidase inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.25	KE:281	Thyroxine (T4) in serum, Decreased
AOP:176	Sodium Iodide Symporter (NIS) Inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.2	KE:281	Thyroxine (T4) in serum, Decreased
AOP:188	Iodotyrosine deiodinase (IYD) inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.2	KE:281	Thyroxine (T4) in serum, Decreased
AOP:192	Pendrin inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.25	KE:281	Thyroxine (T4) in serum, Decreased
AOP:193	Dual oxidase (DUOX) inhibition leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.25	KE:281	Thyroxine (T4) in serum, Decreased
AOP:194	Hepatic nuclear receptor activation leading to altered amphibian metamorphosis	Unclassified	-	African clawed frog	0.17	KE:281	Thyroxine (T4) in serum, Decreased
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: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: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:363	Thyroperoxidase inhibition leading to altered visual function via altered retinal layer structure	Unclassified	Under Review	Zebrafish	0.12	KE:281	Thyroxine (T4) in serum, Decreased
AOP:364	Thyroperoxidase inhibition leading to altered visual function via decreased eye size	Unclassified	Under Development		0.12	KE:281	Thyroxine (T4) in serum, Decreased
AOP:365	Thyroperoxidase inhibition leading to altered visual function via altered photoreceptor patterning	Unclassified	Under Development		0.12	KE:281	Thyroxine (T4) in serum, Decreased
AOP:366	Competitive binding to thyroid hormone carrier protein transthyretin (TTR) leading to altered amphibian metamorphosis	Unclassified	-		0.14	KE:281	Thyroxine (T4) in serum, Decreased
AOP:367	Competitive binding to thyroid hormone carrier protein thyroid binding globulin (TBG) leading to altered amphibian metamorphosis	Unclassified	-		0.14	KE:281	Thyroxine (T4) in serum, Decreased
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:439	Activation of the AhR leading to metastatic breast cancer	Thoracic disease; Cancer	Under Development	Humans, Mice	0.22	KE:1971	Increased, tumor growth
AOP:439	Activation of the AhR leading to metastatic breast cancer	Thoracic disease; Cancer	Under Development	Humans, Mice	0.22	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:446	PM-related Adverse outcome pathway frameworks on various systems	Respiratory system disease	-		0.05	KE:1262	Apoptosis
AOP:452	Adverse outcome pathway of PM-induced respiratory toxicity	Respiratory system disease	-		0.09	KE:1262	Apoptosis
AOP:457	Succinate dehydrogenase inhibition leading to increased insulin resistance through reduction in circulating thyroxine	Inherited metabolic disorder	-	Human	0.17	KE:281	Thyroxine (T4) in serum, Decreased
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:2050	Increase, developmental abnormalities
AOP:467	Knickkopf leading to mortality	Unclassified	-		0.11	KE:2050	Increase, developmental abnormalities
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: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:2125	Increased fat mass
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:34	LXR activation leading to hepatic steatosis	Gastrointestinal system disease; Inherited metabolic disorder	-		0.08	KE:345	N/A, Liver Steatosis
AOP:42	Inhibition of Thyroperoxidase and Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	WPHA/WNT Endorsed	Human, Rat, Mouse	0.25	KE:402	Cognitive function, decreased
AOP:42		Cognitive disorder	WPHA/WNT Endorsed	Human, Rat, Mouse	0.25	KE:281	Thyroxine (T4) in serum, Decreased
AOP:134	Sodium Iodide Symporter (NIS) Inhibition and Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	-	Rat, Homo sapiens	0.22	KE:402	Cognitive function, decreased
AOP:134		Cognitive disorder	-	Rat, Homo sapiens	0.22	KE:281	Thyroxine (T4) in serum, Decreased
AOP:139	Alkylation of DNA leading to cancer 1	Cancer	-	Homo sapiens, Mus musculus	0.25	KE:885	Increase, Cancer
AOP:205	AOP from chemical insult to cell death	Unclassified	-	Vertebrates	0.17	KE:1262	Apoptosis
AOP:300	Thyroid Receptor Antagonism and Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	Under Development	Human, Mouse	0.2	KE:402	Cognitive function, decreased
AOP:405	Organo-Phosphate Chemicals induced inhibition of AChE leading to impaired cognitive function	Cognitive disorder	-	Rattus norvegicus, Mus musculus, Homo sapiens	0.2	KE:402	Cognitive function, decreased
AOP:442	Binding to voltage gate sodium channels during development leads to cognitive impairment	Cognitive disorder	Under Review	Rattus norvegicus, Mouse, Humans	0.14	KE:402	Cognitive function, decreased
AOP:458	AhR activation in the liver leading to Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	-	Rat, Mouse, Monkey, Human	0.25	KE:402	Cognitive function, decreased
AOP:458		Cognitive disorder	-	Rat, Mouse, Monkey, Human	0.25	KE:281	Thyroxine (T4) in serum, Decreased
AOP:459	AhR activation in the thyroid leading to Subsequent Adverse Neurodevelopmental Outcomes in Mammals	Cognitive disorder	-	Human, Mouse, Rat	0.22	KE:402	Cognitive function, decreased
AOP:459		Cognitive disorder	-	Human, Mouse, Rat	0.22	KE:281	Thyroxine (T4) in serum, Decreased
AOP:474	Succinate dehydrogenase inactivation leads to cancer by promoting EMT	Cancer	Under Development	Human and other cells in culture	0.2	KE:885	Increase, Cancer
AOP:485	Thyroid hormone antagonism leading to impaired oligodendrocyte maturation during development and subsequent decreased cognition	Cognitive disorder	-	Human	0.14	KE:402	Cognitive function, decreased
AOP:486	Binding to the extracellular protein laminin leading to decreased cognitive function	Cognitive disorder	-	Human	0.14	KE:402	Cognitive function, decreased
AOP:488	Increased reactive oxygen species production leading to decreased cognitive function	Cognitive disorder	-	Human	0.14	KE:402	Cognitive function, decreased
AOP:498	Increased LCN2/iron complex leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.25	KE:2150	Neurological disorder
AOP:501	Excessive iron accumulation leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.25	KE:2150	Neurological disorder
AOP:505	Reactive Oxygen Species (ROS) formation leads to cancer via inflammation pathway	Cancer	-	Human, Mouse, Rat	0.2	KE:885	Increase, Cancer
AOP:513	Reactive Oxygen (ROS) formation leads to cancer via Peroxisome proliferation-activated receptor (PPAR) pathway	Cancer	-	Human, Mouse, Rat	0.2	KE:885	Increase, Cancer
AOP:534	Succinate dehydrogenase (SDH) inhibition leads to cancer through oxidative stress	Cancer	-	Vertebrates	0.17	KE:885	Increase, Cancer
AOP:546	Succinate dehydrogenase inactivation leads to cancer through hypoxic-like mechanisms	Cancer	-	Human and other cells in culture	0.2	KE:885	Increase, Cancer

No associated AOPs with Level of Relevance 3

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.