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Adverse Outcome Pathways for Prediction of Chemical Toxicity at Work: Their Applications and Prospects

작업장 화학물질 독성예측을 위한 독성발현경로의 응용과 전망

  • Rim, Kyung-Taek (Chemicals Research Bureau, Occupational Safety&Health Research Institute, Korea Occupational Safety&Health Agency) ;
  • Choi, Heung-Koo (Chemicals Research Bureau, Occupational Safety&Health Research Institute, Korea Occupational Safety&Health Agency) ;
  • Lee, In-Seop (Chemicals Research Bureau, Occupational Safety&Health Research Institute, Korea Occupational Safety&Health Agency)
  • 임경택 (안전보건공단 산업안전보건연구원 산업화학연구실 흡입독성연구센터) ;
  • 최흥구 (안전보건공단 산업안전보건연구원 산업화학연구실 흡입독성연구센터) ;
  • 이인섭 (안전보건공단 산업안전보건연구원 산업화학연구실 흡입독성연구센터)
  • Received : 2019.03.21
  • Accepted : 2019.06.21
  • Published : 2019.06.30

Abstract

Objectives: An adverse outcome pathway is a biological pathway that disturbs homeostasis and causes toxicity. It is a conceptual framework for organizing existing biological knowledge and consists of the molecular initiating event, key event, and adverse output. The AOP concept provides intuitive risk identification that can be helpful in evaluating the carcinogenicity of chemicals and in the prevention of cancer through the assessment of chemical carcinogenicity predictions. Methods: We reviewed various papers and books related to the application of AOPs for the prevention of occupational cancer. We mainly used the internet to search for the necessary research data and information, such as via Google scholar(http://scholar.google.com), ScienceDirect(www.sciencedirect.com), Scopus(www.scopus. com), NDSL(http: //www.ndsl.kr/index.do) and PubMed(http://www.ncbi.nlm.nih.gov/pubmed). The key terms searched were "adverse outcome pathway," "toxicology," "risk assessment," "human exposure," "worker," "nanoparticle," "applications," and "occupational safety and health," among others. Results: Since it focused on the current state of AOP for the prediction of toxicity from chemical exposure at work and prospects for industrial health in the context of the AOP concept, respiratory and nanomaterial hazard assessments. AOP provides an intuitive understanding of the toxicity of chemicals as a conceptual means, and it works toward accurately predicting chemical toxicity. The AOP technique has emerged as a future-oriented alternative to the existing paradigm of chemical hazard and risk assessment. AOP can be applied to the assessment of chemical carcinogenicity along with efforts to understand the effects of chronic toxic chemicals in workplaces. Based on these predictive tools, it could be possible to bring about a breakthrough in the prevention of occupational and environmental cancer. Conclusions: The AOP tool has emerged as a future-oriented alternative to the existing paradigm of chemical hazard and risk assessment and has been widely used in the field of chemical risk assessment and the evaluation of carcinogenicity at work. It will be a useful tool for prediction, and it is possible that it can help bring about a breakthrough in the prevention of occupational and environmental cancer.

Keywords

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Figure 1. Adverse outcome pathway and Selected key events and adverse outcomes

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Figure 2. Possible genetic and epigenetic pathways linking occupational/environmental exposures and adverse effects

Table 1. Definitions used in mechanistic frameworks for predicting and assessing toxicity

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Table 2. Guide to assessing genetic and epigenetic data for risk assessment

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Table 3. External links about AOP sources

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