AUTHOR=Rozewski Eran , Taqi Omran , Fini Elham H. , Lewinski Nastassja A. , Klein-Seetharaman Judith TITLE=Systems biology of asphalt pollutants and their human molecular targets JOURNAL=Frontiers in Systems Biology VOLUME=2 YEAR=2023 URL=https://www.frontiersin.org/journals/systems-biology/articles/10.3389/fsysb.2022.928962 DOI=10.3389/fsysb.2022.928962 ISSN=2674-0702 ABSTRACT=

More than 90% of all the roads in the United States are covered with asphalt, despite hundreds of scientific studies demonstrating the detrimental effect of asphalt on human health. Asphalt is a complex mixture of thousands of compounds. Here, we not only review studies of the effects of asphalt on human health, but go a step further by taking a novel view of these health effects from a systems biology perspective. In particular, we propose an analogy to protein-protein interaction networks, which can be within species and across species when looking at host-pathogen interactions. While in the former, all nodes are of the same type (e.g., human proteins), in the latter nodes can be of different types, such as human proteins and pathogen proteins. To build a corresponding network of interactions between different nodes for asphalt, we retrieved the literature studying the molecular targets of identified components in asphalt and their corresponding cellular biomarkers. Using this approach, we show that a complex trans pollutant-human target network appears in which multiple health effects can be triggered through interactions of multiple pollutant molecules with multiple human targets. We envision that the insights gained from this analysis may assist future efforts at regulating the use of asphalt.