Abstract 859: Development of non-smoking lung cancers by indoor carcinogenic aerosols through epigenetic reprogramming of lung stem cells: Bioinformatics and artificial intelligence analysis
Authors: Juan Anderson, Mariah Delgado, Malcolm Lovett, Maya Saunders, Geovannie Lake, Samuel Darko, Rose M. Stiffin, Ayivi Huisso, Marilyn Sherman, Latoya Appleton, Amalya Mihnea, Swarnava Das, Mohammad M. Algahtani, Ravi Vadapalli, Biswarup Basu, Arunima Biswas, Noor Neha, Madhumita Das, Marco A. Ruiz, Mayur Doke, Jayanta K. Das
Journal: Cancer Research (2024)

Abstract Several scientific studies discovered the toxic effects of indoor aerosols on different organs’ adult stem cells of the human body. The most importantly, the indoor toxic aerosols comprised of numerous carcinogens namely, sodium dodecyl sulfate, phthalic acids from floor cleaners, formaldehyde, acetaldehyde, benzene, toluene, ethyl benzene, xylenes, from air fresheners, Hydramethylnon, Pyrethrins, imiprothrin, cypermethrin, tetramethrin, prallethrin and permethrin from ant and roach Killer. However, there was a lack of analysis revealing the mechanism of toxic effects and epigenetic reprogramming of human lung stem cells and development of non-smoking lung cancers. In this study, we analyzed the toxic effects of these chemicals and the mechanism of epigenetic reprograming on lung epithelial cells using Comparative Toxico-genomics Database (CTD), database of Environmental Health Perspectives (EHP), National Institute of Environmental Health Sciences (NIEHS), Google search browser with generative artificial intelligence (AI) and other biological informatics methods (Reactome, Cytoscape PSICQUIC services, and ChEMBL database). We observed from CTD analysis that the chemical gene interactions as risk factors from indoor aerosols showed transcriptionally highly expressed of 31 common genes, by phthalic acids, sodium dodecyl sulfate, from the total of 1347 genes, 107 common genes by formaldehyde, acetaldehyde from the total of 4193 genes and all other toxic ingredients of indoor aerosols. The epigenetic mechanism of histone modifications (H3K4me3, H3K9me3, H3K27me3, H3K27ac, H3K36me3, H3K4me1, Hsa-mir-1301 of lung epithelial, and miRNAs have been revealed by NIH Roadmap Epigenomics Mapping Consortium and the lung tissue arrays were analyzed with AI and matplotlib program. The heterogenic adult stem cell reprogramming is regulated by epigenetic bivalent histone modifications at transcript starts sequences (TSS) of target genes and our current study revealed that CD44, CD80, ALDH2, ALDH3A1, ALDH3B2 are epigenetically reprogrammed with close interaction of other genes by these toxic ingredients of indoor aerosols. Therefore, our results are significant for the carcinogenic effects of indoor aerosols causing for development of lung cancer epigenetically, which may give a clue for the prevention and treatment of nonsmoking lung cancer. Citation Format: Juan Anderson, Mariah Delgado, Malcolm Lovett, Maya Saunders, Geovannie Lake, Samuel Darko, Rose M. Stiffin, Ayivi Huisso, Marilyn Sherman, Latoya Appleton, Amalya Mihnea, Swarnava Das, Mohammad M. Algahtani, Ravi Vadapalli, Biswarup Basu, Arunima Biswas, Noor Neha, Madhumita Das, Marco A. Ruiz, Mayur Doke, Jayanta K. Das. Development of non-smoking lung cancers by indoor carcinogenic aerosols through epigenetic reprogramming of lung stem cells: Bioinformatics and artificial intelligence analysis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 859.