PMID- 28949027 OWN - NLM STAT- MEDLINE DCOM- 20180723 LR - 20181221 IS - 1099-1263 (Electronic) IS - 0260-437X (Linking) VI - 38 IP - 2 DP - 2018 Feb TI - Preventive effects of fructose and N-acetyl-L-cysteine against cytotoxicity induced by the psychoactive compounds N-methyl-5-(2-aminopropyl)benzofuran and 3,4-methylenedioxy-N-methamphetamine in isolated rat hepatocytes. PG - 284-291 LID - 10.1002/jat.3523 [doi] AB - Psychoactive compounds, N-methyl-5-(2-aminopropyl)benzofuran (5-MAPB) and 3,4-methylenedioxy-N-methamphetamine (MDMA), are known to be hepatotoxic in humans and/or experimental animals. As previous studies suggested that these compounds elicited cytotoxicity via mitochondrial dysfunction and/or oxidative stress in rat hepatocytes, the protective effects of fructose and N-acetyl-l-cysteine (NAC) on 5-MAPB- and MDMA-induced toxicity were studied in rat hepatocytes. These drugs caused not only concentration-dependent (0-4 mm) and time-dependent (0-3 hours) cell death accompanied by the depletion of cellular levels of adenosine triphosphate (ATP) and glutathione (reduced form; GSH) but also an increase in the oxidized form of GSH. The toxic effects of 5-MAPB were greater than those of MDMA. Pretreatment of hepatocytes with either fructose at a concentration of 10 mm or NAC at a concentration of 2.5 mm prevented 5-MAPB-/MDMA-induced cytotoxicity. In addition, the exposure of hepatocytes to 5-MAPB/MDMA caused the loss of mitochondrial membrane potential, although the preventive effect of fructose was weaker than that of NAC. These results suggest that: (1) 5-MAPB-/MDMA-induced cytotoxicity is linked to mitochondrial failure and depletion of cellular GSH; (2) insufficient cellular ATP levels derived from mitochondrial dysfunction were ameliorated, at least in part, by the addition of fructose; and (3) GSH loss via oxidative stress was prevented by NAC. Taken collectively, these results indicate that the onset of toxic effects caused by 5-MAPB/MDMA may be partially attributable to cellular energy stress as well as oxidative stress. CI - Copyright (c) 2017 John Wiley & Sons, Ltd. FAU - Nakagawa, Yoshio AU - Nakagawa Y AUID- ORCID: 0000-0003-3156-467X AD - Division of Toxicology, Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan. FAU - Suzuki, Toshinari AU - Suzuki T AD - Division of Toxicology, Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan. FAU - Inomata, Akiko AU - Inomata A AD - Division of Toxicology, Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan. LA - eng PT - Journal Article DEP - 20170926 PL - England TA - J Appl Toxicol JT - Journal of applied toxicology : JAT JID - 8109495 RN - 0 (Benzofurans) RN - 0 (Propylamines) RN - 0 (Psychotropic Drugs) RN - 2M3825704H (5-(2-aminopropyl)benzofuran) RN - 30237-26-4 (Fructose) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - WYQ7N0BPYC (Acetylcysteine) SB - IM MH - Acetylcysteine/*pharmacology MH - Animals MH - Benzofurans/*toxicity MH - Cell Survival/drug effects MH - Cells, Cultured MH - Energy Metabolism/drug effects MH - Fructose/*pharmacology MH - Hepatocytes/*drug effects/metabolism/pathology MH - Male MH - Membrane Potential, Mitochondrial/drug effects MH - N-Methyl-3,4-methylenedioxyamphetamine/*toxicity MH - Oxidative Stress/drug effects MH - Propylamines/*toxicity MH - Psychotropic Drugs/*toxicity MH - Rats, Inbred F344 OTO - NOTNLM OT - 5-MAPB OT - MDMA OT - N-acetyl-L-cysteine OT - cytotoxicity OT - designer drugs OT - fructose OT - mitochondrial dysfunction OT - oxidative stress OT - rat hepatocytes EDAT- 2017/09/28 06:00 MHDA- 2018/07/24 06:00 CRDT- 2017/09/27 06:00 PHST- 2017/07/24 00:00 [received] PHST- 2017/08/15 00:00 [accepted] PHST- 2017/09/28 06:00 [pubmed] PHST- 2018/07/24 06:00 [medline] PHST- 2017/09/27 06:00 [entrez] AID - 10.1002/jat.3523 [doi] PST - ppublish SO - J Appl Toxicol. 2018 Feb;38(2):284-291. doi: 10.1002/jat.3523. Epub 2017 Sep 26.