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Stella Tommasi

Stella Tommasi

Associate Professor of Research Population and Public Health Sciences
Medicine
NRT 1509C 1450 Biggy Street Health Sciences Campus Los Angeles

Contact

+1 323 442 7753
tommasi@med.usc.edu

Epigenomic Dysregulation in Youth Vapers: Implications for Disease Risk Assessment Am J Respir Cell Mol Biol. 2024 Aug 12. . View in PubMed

The Untapped Biomarker Potential of MicroRNAs for Health Risk-Benefit Analysis of Vaping vsSmoking. Cells. 2024 Aug 10; 13(16). . View in PubMed

Exploring the Utility of Long Non-Coding RNAs for Assessing the Health Consequences of Vaping Int J Mol Sci. 2024 Aug 05; 25(15). . View in PubMed

The interplay of DNA damage and repair, gene expression, and mutagenesis in mammalian cells during oxidative stress Carcinogenesis. 2024 Jul 18. . View in PubMed

Vaping Dose, Device Type, and E-Liquid Flavor are Determinants of DNA Damage in Electronic Cigarette Users Nicotine Tob Res. 2023 05 22; 25(6):1145-1154. . View in PubMed

DNA Hydroxymethylation in Smoking-Associated Cancers Int J Mol Sci. 2022 Feb 28; 23(5). . View in PubMed

Secondhand smoke affects reproductive functions by altering the mouse testis transcriptome, and leads to select intron retention in Pde1a Environ Int. 2022 03; 161:107086. . View in PubMed

The consequential impact of JUUL on youth vaping and the landscape of tobacco products: The state of play in the COVID-19 era Prev Med Rep. 2021 Jun; 22:101374. . View in PubMed

Hydroxychloroquine induces oxidative DNA damage and mutation in mammalian cells DNA Repair (Amst). 2021 10; 106:103180. . View in PubMed

A novel role for vaping in mitochondrial gene dysregulation and inflammation fundamental to disease development Sci Rep. 2021 11 23; 11(1):22773. . View in PubMed

Relationships among smoking, oxidative stress, inflammation, macromolecular damage, and cancer Mutat Res Rev Mutat Res. 2021 Jan-Jun; 787:108365. . View in PubMed

Vaping epidemic: challenges and opportunities Cancer Causes Control. 2020 Jul; 31(7):663-667. . View in PubMed

Secondhand Smoke Induces Liver Steatosis through Deregulation of Genes Involved in Hepatic Lipid Metabolism Int J Mol Sci. 2020 Feb 14; 21(4). . View in PubMed

Hypomethylation of LINE-1 repeat elements and global loss of DNA hydroxymethylation in vapers and smokers Epigenetics. 2020 08; 15(8):816-829. . View in PubMed

Spontaneous and photosensitization-induced mutations in primary mouse cells transitioning through senescence and immortalization J Biol Chem. 2020 07 17; 295(29):9974-9985. . View in PubMed

Vaping: A growing global health concern EClinicalMedicine. 2019 Dec; 17:100208. . View in PubMed

Deregulation of Biologically Significant Genes and Associated Molecular Pathways in the Oral Epithelium of Electronic Cigarette Users Int J Mol Sci. 2019 Feb 10; 20(3). . View in PubMed

DNA Hydroxymethylation at the Interface of the Environment and Nonalcoholic Fatty Liver Disease Int J Environ Res Public Health. 2019 08 05; 16(15). . View in PubMed

Mutation Analysis in Cultured Cells of Transgenic Rodents Int J Mol Sci. 2018 Jan 16; 19(1). . View in PubMed

A Versatile Assay for Detection of Aberrant DNA Methylation in Bladder Cancer Methods Mol Biol. 2018; 1655:29-41. . View in PubMed

The Lambda Select cII Mutation Detection System J Vis Exp. 2018 04 26; (134). . View in PubMed

An opportune and unique research to evaluate the public health impact of electronic cigarettes Cancer Causes Control. 2017 Oct; 28(10):1167-1171. . View in PubMed

Limited mutagenicity of electronic cigarettes in mouse or human cells in vitro Lung Cancer. 2017 10; 112:41-46. . View in PubMed

Expression of epigenetic modifiers is not significantly altered by exposure to secondhand smoke Lung Cancer. 2015 Dec; 90(3):598-603. . View in PubMed

Exposure of mice to secondhand smoke elicits both transient and long-lasting transcriptional changes in cancer-related functional networks Int J Cancer. 2015 May 15; 136(10):2253-63. . View in PubMed

The lingering question of menthol in cigarettes Cancer Causes Control. 2015 Feb; 26(2):165-169. . View in PubMed

RASSF6 exhibits promoter hypermethylation in metastatic melanoma and inhibits invasion in melanoma cells Epigenetics. 2014 Nov; 9(11):1496-503. . View in PubMed

Epigenetics of human melanoma: promises and challenges J Mol Cell Biol. 2014 Oct; 6(5):356-67. . View in PubMed

Electronic cigarettes: the road ahead Prev Med. 2014 Sep; 66:65-7. . View in PubMed

Epigenetic targeting of the Nanog pathway and signaling networks during chemical carcinogenesis Carcinogenesis. 2014 Aug; 35(8):1726-36. . View in PubMed

Alterations of DNA methylome in human bladder cancer Epigenetics. 2013 Oct; 8(10):1013-22. . View in PubMed

Genotoxicity of tobacco smoke-derived aromatic amines and bladder cancer: current state of knowledge and future research directions FASEB J. 2013 Jun; 27(6):2090-100. . View in PubMed

Mammalian cells acquire epigenetic hallmarks of human cancer during immortalization Nucleic Acids Res. 2013 Jan 07; 41(1):182-95. . View in PubMed

Whole DNA methylome profiling in mice exposed to secondhand smoke Epigenetics. 2012 Nov; 7(11):1302-14. . View in PubMed

A high-throughput next-generation sequencing-based method for detecting the mutational fingerprint of carcinogens Nucleic Acids Res. 2012 Aug; 40(15):e116. . View in PubMed

New experimental data linking secondhand smoke exposure to lung cancer in nonsmokers FASEB J. 2012 May; 26(5):1845-54. . View in PubMed

Organ specificity of the bladder carcinogen 4-aminobiphenyl in inducing DNA damage and mutation in mice Cancer Prev Res (Phila). 2012 Feb; 5(2):299-308. . View in PubMed

Investigating the epigenetic effects of a prototype smoke-derived carcinogen in human cells PLoS One. 2010 May 12; 5(5):e10594. . View in PubMed

RASSF proteins Curr Biol. 2010 Apr 27; 20(8):R344-5. . View in PubMed

Identification of 5 novel genes methylated in breast and other epithelial cancers Mol Cancer. 2010 Mar 05; 9:51. . View in PubMed

Tumor suppressor Ras-association domain family 1 isoform A is a novel regulator of cardiac hypertrophy Circulation. 2009 Aug 18; 120(7):607-16. . View in PubMed

Methylation of homeobox genes is a frequent and early epigenetic event in breast cancer Breast Cancer Res. 2009; 11(1):R14. . View in PubMed

RASSF1A is part of a complex similar to the Drosophila Hippo/Salvador/Lats tumor-suppressor network Curr Biol. 2007 Apr 17; 17(8):700-5. . View in PubMed

Involvement of the RASSF1A tumor suppressor gene in controlling cell migration Cancer Res. 2005 Sep 01; 65(17):7653-9. . View in PubMed

Short hairpin RNA-directed cytosine (CpG) methylation of the RASSF1A gene promoter in HeLa cells Mol Ther. 2005 Jul; 12(1):179-83. . View in PubMed

The tumor suppressor RASSF1A and MAP-1 link death receptor signaling to Bax conformational change and cell death Mol Cell. 2005 Jun 10; 18(6):637-50. . View in PubMed

Tumor susceptibility of Rassf1a knockout mice Cancer Res. 2005 Jan 01; 65(1):92-8. . View in PubMed

Control of microtubule stability by the RASSF1A tumor suppressor Oncogene. 2003 Nov 06; 22(50):8125-36. . View in PubMed

Epigenetic inactivation of RAS association domain family protein 1 (RASSF1A) in malignant cutaneous melanoma Cancer Res. 2003 Apr 01; 63(7):1639-43. . View in PubMed

Methylation of the RASSF1A gene in human cancers Biol Chem. 2002 Jun; 383(6):907-14. . View in PubMed

RASSF3 and NORE1: identification and cloning of two human homologues of the putative tumor suppressor gene RASSF1 Oncogene. 2002 Apr 18; 21(17):2713-20. . View in PubMed

I am an Associate Professor of Research in the Department of Population and Public Health Sciences (PPHS) and a Full Member of the USC Norris Comprehensive Cancer Center (NCCC), Genomic and Epigenomic Regulation Program (GER). Research in my laboratory focuses on investigating the molecular mechanisms underlying the development of cancer and other chronic diseases. Specifically, we aim to elucidate how the genome and epigenome are affected by lifestyle (e.g., smoking, vaping, diet) and environmental exposures (e.g., air pollutants, chemical contaminants). Using a combination of novel seq-based omics technologies, classic molecular biology assays, and bioinformatics tools, my group investigates the role played by tobacco toxicants/carcinogens (and environmental pollutants) in the pathogenesis of cancer and nonalcoholic fatty liver disease (NAFLD), a primary form of liver disease and a growing global epidemic. Characterizing the interaction of genetic, epigenetic, and environmental determinants can provide insights into the complexity and heterogeneity of cancer and NAFLD. Improving our mechanistic understanding of their etiology will be instrumental in developing effective strategies for the prevention, early detection, treatment and monitoring of these diseases.
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