PMID- 32417428 OWN - NLM STAT- MEDLINE DCOM- 20200723 LR - 20200723 IS - 1879-3169 (Electronic) IS - 0378-4274 (Linking) VI - 331 DP - 2020 Oct 1 TI - Comparative toxicity analysis of corannulene and benzo[a]pyrene in mice. PG - 130-142 LID - S0378-4274(20)30135-1 [pii] LID - 10.1016/j.toxlet.2020.05.002 [doi] AB - Increasing production of corannulene (COR), a non-planar polycyclic aromatic hydrocarbon (PAH) with promising applications in many fields, has raised a concern about its potential toxic effects. However, no study has been undertaken to evaluate its metabolism and toxicity in mammals. In this study, the acute toxicities of COR in mice were compared with benzo[apyrene (BaP), a typical planar PAH with almost the same molecular weight. After 3-day exposures, the concentrations of COR in both plasma and tissues of mice were higher than that of BaP. However, blood chemistry and tissue weight monitoring showed no observable toxicities in COR-exposed mice. Compared to BaP, exposure to COR resulted in less activation of the aryl hydrocarbon receptor (AhR) and thus less induction of hepatic cytochrome P450 1A(CYP1A) enzymes, which play a critical role in metabolism of both COR and BaP. Additionally, COR also elicited less oxidative stress and microbiota alteration in the intestine than did BaP. RNA-seq analysis revealed that liver transcriptomes are responsive to COR and BaP, with less alterations observed in COR-exposed mice. Unlike BaP, exposure to COR had no effects on hepatic lipid and xenobiotic metabolism pathways. Nonetheless, COR appeared to alter the mRNA expressions of genes involved in carcinogenicity, oxidative stress, and immune-suppression. To conclude, this study for the first time unveils a comparative understanding of the acute toxic effects of COR to BaP in mice, and provides crucial insights into the future safety assessment of COR. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Li, Gentao AU - Li G AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Xiong, Hui AU - Xiong H AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Saeed, Khawar AU - Saeed K AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Ma, Ruicong AU - Ma R AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Xing, Yufeng AU - Xing Y AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Bi, Yajuan AU - Bi Y AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Li, Caiyu AU - Li C AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Huang, Jianhui AU - Huang J AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. FAU - Zhang, Youcai AU - Zhang Y AD - School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China. Electronic address: youcai.zhang@tju.edu.cn. LA - eng PT - Journal Article DEP - 20200515 PL - Netherlands TA - Toxicol Lett JT - Toxicology letters JID - 7709027 RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Receptors, Aryl Hydrocarbon) RN - 0 (corannulene) RN - 3417WMA06D (Benzo(a)pyrene) RN - EC 1.14.14.1 (Cytochrome P-450 CYP1A1) RN - EC 1.14.14.1 (Cytochrome P-450 CYP1A2) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Administration, Oral MH - Animals MH - Benzo(a)pyrene/pharmacokinetics/*toxicity MH - Cytochrome P-450 CYP1A1/biosynthesis MH - Cytochrome P-450 CYP1A2/biosynthesis MH - Injections, Intraperitoneal MH - Intestines/*drug effects/pathology MH - Liver/*drug effects/metabolism/pathology MH - Liver Function Tests MH - Male MH - Mice, Inbred C57BL MH - Organ Size/drug effects MH - Polycyclic Aromatic Hydrocarbons/blood/pharmacokinetics/*toxicity MH - Rats, Sprague-Dawley MH - Receptors, Aryl Hydrocarbon/*metabolism MH - Superoxide Dismutase/blood MH - Tissue Distribution OTO - NOTNLM OT - Aryl hydrocarbon receptor OT - Benzo[a]pyrene OT - Corannulene OT - Polycyclic aromatic hydrocarbon COIS- Declaration of Competing Interest We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted. EDAT- 2020/05/18 06:00 MHDA- 2020/07/24 06:00 CRDT- 2020/05/18 06:00 PHST- 2020/01/31 00:00 [received] PHST- 2020/04/27 00:00 [revised] PHST- 2020/05/03 00:00 [accepted] PHST- 2020/05/18 06:00 [pubmed] PHST- 2020/07/24 06:00 [medline] PHST- 2020/05/18 06:00 [entrez] AID - S0378-4274(20)30135-1 [pii] AID - 10.1016/j.toxlet.2020.05.002 [doi] PST - ppublish SO - Toxicol Lett. 2020 Oct 1;331:130-142. doi: 10.1016/j.toxlet.2020.05.002. Epub 2020 May 15.