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:139Alkylation of DNA leading to cancer 1Cancer-0.25KE:155
Inadequate DNA repair
AOP:272Deposition of energy leading to lung cancerCancerWPHA/WNT Endorsed0.29KE:155
Inadequate DNA repair
KE:1636
Increase, Chromosomal aberrations
AOP:322Alkylation of DNA leading to reduced sperm countReproductive System Disease-0.2KE:155
Inadequate DNA repair
AOP:397Bulky DNA adducts leading to mutationsGenetic DiseaseUnder Development0.33KE:155
Inadequate DNA repair
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 Development0.2KE:1554
Increase Chromosomal Aberrations
KE:155
Inadequate DNA repair
AOP:465Alcohol dehydrogenase leading to reproductive dysfunctionUnclassified-0.12KE:748
Increased, Estrogen receptor (ER) activity
AOP:478Deposition of energy leading to occurrence of cataractsNervous System Disease; Monogenic DiseaseUnder Review0.2KE:155
Inadequate DNA repair
KE:1636
Increase, Chromosomal aberrations

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 Coverage Score KE Identifier KE Name
AOP:296Oxidative DNA damage leading to chromosomal aberrations and mutationsGenetic Disease; Chromosomal DiseaseWPHA/WNT Endorsed0.4KE:155
Inadequate DNA repair
KE:1636
Increase, Chromosomal aberrations
AOP:504SULT1E1 inhibition leading to uterine adenocarcinoma via increased estrogen availability at target organ levelUnclassified-0.33KE:1065
Activation, estrogen receptor alpha
AOP:561Aromatase induction leading to estrogen receptor alpha activation via increased estradiolUnclassified-0.2KE: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 Coverage Score KE Identifier KE Name
AOP:167Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse.Reproductive System Disease; Cancer-0.29KE:1064
prepubertal increase, Estrogen receptor (ER) activity
KE:1065
Activation, estrogen receptor alpha
AOP:314Binding to estrogen receptor (ER)-α in immune cells leading to exacerbation of systemic lupus erythematosus (SLE)Immune System Disease; Musculoskeletal System DiseaseUnder Development0.2KE:1710
Binding to estrogen receptor (ER)-α in immune cells
AOP:445Estrogen Receptor Alpha Agonism leads to Impaired ReproductionReproductive System Disease-0.12KE:1065
Activation, estrogen receptor alpha
AOP:503Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulationReproductive System Disease; CancerUnder Review0.17KE:1065
Activation, estrogen receptor alpha

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.