PMID- 37146711 OWN - NLM STAT- MEDLINE DCOM- 20230526 LR - 20230526 IS - 1873-6351 (Electronic) IS - 0278-6915 (Linking) VI - 176 DP - 2023 Jun TI - Comprehensive analysis and identification of the circ_0084615/miR-451a/MEF2D axis in benzo(a)pyrene exposed tumor cells in hepato-carcinogenesis. PG - 113810 LID - S0278-6915(23)00212-0 [pii] LID - 10.1016/j.fct.2023.113810 [doi] AB - Hepatocellular carcinoma (HCC) is caused by genetic and epigenetic alterations, as well as abnormal lifestyle and dietary habits, including contaminated food intake. Benzo(a)pyrene (B[a]P), derived from deep-fried meats, is regarded as the main dietary factor for tumorigenesis in epidemiological investigations. Although various studies have illustrated the adverse effects of B[a]P in malignancy through cell and animal models, the correlation between B[a]P exposure and clinical data remain to be explored. In the present study, we analyzed and identified novel B[a]P-associated circular RNA (circRNA) from microarray databases of liver tumor cells and HCC patient samples. Considering that circRNA regulates mRNA as a miRNA sponge, molecular circRNA-miRNA-mRNA interactions based on the stimulation of B[a]P exposure were predicted and established. Furthermore, up-regulated circ_0084615 in B[a]P-treated tumor cells was verified as a miRNA sponge via fluorescence in situ hybridization (FISH) assays, and the repression between circ_0084615 and target miR-451a exhibited a contrasting effect on hepatocarcinogenesis. Therefore, we performed integrated bioinformatics analysis and molecular experiments to establish the circ_0084615/miR-451a/MEF2D pathway, which provided a better understanding of the adverse effects of fried food preference on human health. CI - Copyright (c) 2023 Elsevier Ltd. All rights reserved. FAU - Mu, Wei AU - Mu W AD - School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. FAU - Gu, Pengfei AU - Gu P AD - School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. FAU - Song, Weiwei AU - Song W AD - School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. FAU - Zhu, Tengfei AU - Zhu T AD - School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. FAU - Wang, Wenbo AU - Wang W AD - Department of Oncology, Shanghai Tenths People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China. FAU - Zhou, Yanfeng AU - Zhou Y AD - School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. Electronic address: yfzhou@shsmu.edu.cn. LA - eng PT - Journal Article DEP - 20230503 PL - England TA - Food Chem Toxicol JT - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association JID - 8207483 RN - 0 (RNA, Circular) RN - 3417WMA06D (Benzo(a)pyrene) RN - 0 (MicroRNAs) RN - 0 (RNA, Messenger) RN - 0 (MEF2D protein, human) RN - 0 (MEF2 Transcription Factors) SB - IM MH - Animals MH - Humans MH - *Carcinoma, Hepatocellular/genetics/pathology MH - RNA, Circular/genetics MH - Benzo(a)pyrene/toxicity MH - In Situ Hybridization, Fluorescence MH - *Liver Neoplasms/genetics/pathology MH - Gene Expression Regulation, Neoplastic MH - *MicroRNAs/genetics/metabolism MH - Carcinogenesis/genetics MH - RNA, Messenger MH - Cell Line, Tumor MH - Cell Proliferation MH - MEF2 Transcription Factors/genetics/metabolism OTO - NOTNLM OT - Benzo(a)pyrene OT - Circular RNA OT - Competing endogenous RNA OT - Hepatocellular carcinoma OT - Prognostic biomarker COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/05/06 09:42 MHDA- 2023/05/26 06:42 CRDT- 2023/05/05 19:25 PHST- 2022/06/08 00:00 [received] PHST- 2023/04/27 00:00 [revised] PHST- 2023/05/02 00:00 [accepted] PHST- 2023/05/26 06:42 [medline] PHST- 2023/05/06 09:42 [pubmed] PHST- 2023/05/05 19:25 [entrez] AID - S0278-6915(23)00212-0 [pii] AID - 10.1016/j.fct.2023.113810 [doi] PST - ppublish SO - Food Chem Toxicol. 2023 Jun;176:113810. doi: 10.1016/j.fct.2023.113810. Epub 2023 May 3.