Associated High Confidence AOPs
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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 Coverage Score KE Identifier KE Name
AOP:15Alkylation of DNA in male pre-meiotic germ cells leading to heritable mutationsGenetic DiseaseWPHA/WNT Endorsed0.25KE:155
Inadequate DNA repair
AOP:27Cholestatic Liver Injury induced by Inhibition of the Bile Salt Export Pump (ABCB11)Gastrointestinal System DiseaseUnder Development0.12KE:288
Activation of specific nuclear receptors, Transcriptional change
AOP:80Nicotinic acetylcholine receptor activation contributes to accumulation of damaged mitochondrial DNA and leads to colony loss/failureUnclassified-0.12KE:664
Overwhelmed, Mitochondrial DNA repair mechanisms
AOP:108Inhibition of pyruvate dehydrogenase kinase leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal System Disease-0.17KE:768
Increase, Cytotoxicity
AOP:136Intracellular Acidification Induced Olfactory Epithelial Injury Leading to Site of Contact Nasal TumorsBenign Neoplasm; Respiratory System DiseaseUnder Review0.14KE:768
Increase, Cytotoxicity
AOP:139Alkylation of DNA leading to cancer 1Cancer-0.25KE:155
Inadequate DNA repair
AOP:207NADPH oxidase and P38 MAPK activation leading to reproductive failure in Caenorhabditis elegansReproductive System Disease-0.12KE:1281
Increased, DNA Damage-Repair
AOP:212Histone deacetylase inhibition leading to testicular atrophyReproductive System DiseaseWPHA/WNT Endorsed0.17KE:1505
Cell cycle, disrupted
AOP:263Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased cell proliferationUnclassifiedWPHA/WNT Endorsed0.25KE:1821
Decrease, Cell proliferation
AOP:267Uncoupling of oxidative phosphorylation leading to growth inhibition via glucose depletionUnclassifiedUnder Development0.2KE:1821
Decrease, Cell proliferation
AOP:272Deposition of energy leading to lung cancerCancerWPHA/WNT Endorsed0.14KE:155
Inadequate DNA repair
AOP:286Mitochondrial complex III antagonism leading to growth inhibition (1)Unclassified-0.25KE:1821
Decrease, Cell proliferation
AOP:288Inhibition of 17α-hydrolase/C 10,20-lyase (Cyp17A1) activity leads to birth reproductive defects (cryptorchidism) in male (mammals)Endocrine System Disease-0.12KE:1614
Decrease, androgen receptor activation
AOP:290Mitochondrial ATP synthase antagonism leading to growth inhibition (1)Unclassified-0.25KE:1821
Decrease, Cell proliferation
AOP:296Oxidative DNA damage leading to chromosomal aberrations and mutationsGenetic Disease; Chromosomal DiseaseWPHA/WNT Endorsed0.2KE:155
Inadequate DNA repair
AOP:3055α-reductase inhibition leading to short anogenital distance (AGD) in male (mammalian) offspringUnclassifiedUnder Development0.2KE:1614
Decrease, androgen receptor activation
AOP:322Alkylation of DNA leading to reduced sperm countReproductive System Disease-0.2KE:155
Inadequate DNA repair
AOP:331Excessive reactive oxygen species leading to growth inhibition via oxidative DNA damage and reduced cell proliferationUnclassified-0.33KE:1821
Decrease, Cell proliferation
KE:1505
Cell cycle, disrupted
AOP:332Excessive reactive oxygen species leading to growth inhibition via lipid peroxidation and reduced cell proliferationUnclassified-0.4KE:1821
Decrease, Cell proliferation
KE:1505
Cell cycle, disrupted
AOP:333Excessive reactive oxygen species leading to growth inhibition via uncoupling of oxidative phosphorylationUnclassified-0.2KE:1821
Decrease, Cell proliferation
AOP:397Bulky DNA adducts leading to mutationsGenetic DiseaseUnder Development0.33KE:155
Inadequate DNA repair
AOP:399Inhibition of Fyna leading to increased mortality via decreased eye size (Microphthalmos)Unclassified-0.12KE:1821
Decrease, Cell proliferation
AOP:432Deposition of Energy by Ionizing Radiation leading to Acute Myeloid LeukemiaHematopoietic System Disease; Cancer-0.09KE:155
Inadequate DNA repair
AOP:443DNA damage and mutations leading to Metastatic Breast CancerThoracic Disease; CancerUnder Development0.1KE:155
Inadequate DNA repair
AOP:445Estrogen Receptor Alpha Agonism leads to Impaired ReproductionReproductive System Disease-0.12KE:1987
Decreased, Androgen and Progestin
AOP:452Adverse outcome pathway of PM-induced respiratory toxicityRespiratory System Disease-0.09KE:2013
Airway remodeling
AOP:460Antagonism of Smoothened receptor leading to orofacial cleftingUnclassifiedUnder Development0.11KE:1821
Decrease, Cell proliferation
AOP:478Deposition of energy leading to occurrence of cataractsNervous System Disease; Monogenic DiseaseUnder Review0.1KE:155
Inadequate DNA repair
AOP:491Decrease, GLI1/2 target gene expression leads to orofacial cleftingUnclassifiedUnder Development0.17KE:1821
Decrease, Cell proliferation

No associated AOPs with Level of Relevance 2

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 Coverage Score KE Identifier KE Name
AOP:19Androgen receptor antagonism leading to adverse effects in the male foetus (mammals)Reproductive System Disease-0.2KE:26
Antagonism, Androgen receptor
AOP:111Decrease in androgen receptor activity leading to Leydig cell tumors (in rat)Cancer; Reproductive System Disease-0.2KE:1614
Decrease, androgen receptor activation
AOP:306Androgen receptor (AR) antagonism leading to short anogenital distance (AGD) in male (mammalian) offspringUnclassifiedUnder Development0.5KE:1614
Decrease, androgen receptor activation
KE:26
Antagonism, Androgen receptor
AOP:344Androgen receptor (AR) antagonism leading to nipple retention (NR) in male (mammalian) offspringUnclassifiedUnder Development0.5KE:1614
Decrease, androgen receptor activation
KE:26
Antagonism, Androgen receptor
AOP:345Androgen receptor (AR) antagonism leading to decreased fertility in femalesEndocrine System Disease; Reproductive System Disease; Reproductive System DiseaseUnder Development0.33KE:1614
Decrease, androgen receptor activation
KE:26
Antagonism, Androgen receptor
AOP:372Androgen receptor antagonism leading to testicular cancerEndocrine System Disease; Reproductive System Disease; Cancer-0.4KE:1614
Decrease, androgen receptor activation
KE:26
Antagonism, Androgen receptor
AOP:431Increased tumor necrosis factor (TNF) leading to increased risk of gestational diabetes mellitus (GDM)Inherited Metabolic Disorder-0.2KE:1950
Increase, TNF
AOP:477Androgen receptor (AR) antagonism leading to hypospadias in male (mammalian) offspringPhysical Disorder-0.67KE:1614
Decrease, androgen receptor activation
KE:26
Antagonism, Androgen receptor
AOP:525Reduced oligodendrocyte differentiation during neurodevelopment leading to impaired learning and memoryDevelopmental Disorder Of Mental Health-0.15KE:2220
Antagonism, Glucocorticoid hormone receptor
KE:2217
Binding of antagonist to glucocorticoid hormone receptor

No associated AOPs with Level of Relevance 5
Glossary of Terms

AOP
Adverse Outcome Pathway
MIE
Molecular Initiating Event
KE
Key Event
AO
Adverse Outcome
Coverage score
The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints
Level of relevance
Qualitative rank based on the kind of associated KEs within the corresponding AOP
AO classification
The disease category corresponding to the AO in the AOP obtained from Disease Ontology
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DISCLAIMER

TICToK is a knowledgebase of chemicals found in tattoo inks, compiled from publicly available regulatory and scientific resources. The chemical classifications presented in this knowledgebase are derived from multiple publicly available resources and are provided solely for informational purposes, and they are neither authoritative nor binding. The chemical-AOP mappings compiled in this knowledgebase serve as plausible hypotheses for research, and further experimental validation is required to definitively establish these potential toxicity mechanisms. The authors bear no responsibility for any errors, omissions, or inconsistencies originating from these external sources. Users are advised to exercise independent judgment when interpreting chemical classifications and any other data provided in this resource. Importantly, our sole goal to build this resource on tattoo ink chemicals is to enable future basic research on this topic, and it does not necessarily reflect the views or objectives of our employers or funders.