PMID- 37512524 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230801 IS - 2218-1989 (Print) IS - 2218-1989 (Electronic) IS - 2218-1989 (Linking) VI - 13 IP - 7 DP - 2023 Jul 4 TI - Sucralose Targets the Insulin Signaling Pathway in the SH-SY5Y Neuroblastoma Cell Line. LID - 10.3390/metabo13070817 [doi] LID - 817 AB - Sucralose is widely used as a non-nutritive sweetener (NNS). However, in order to justify its use as a non-nutritive food additive, sucralose would have to be metabolically neutral. The aim of this study was to examine whether sucralose altered the insulin signaling pathway in an in vitro cell model of Parkinson's disease (PD)-the dopaminergic differentiated cell line SH-SY5Y. Cells were exposed to sucralose alone and in combination with either insulin or levodopa. Activation of the insulin signaling pathway was assessed by quantifying protein kinase B (AKT) and glycogen synthase kinase 3 (GSK3), as well as the phosphorylated forms of insulin-like growth factor 1 receptor (IGF1-R). Metabolic effects were assayed using MALDI-TOF MS analysis. In the cell viability test, 2 mM sucralose had a negative effect, and levodopa in all combinations had a positive effect. Sucralose treatment alone suppressed GSK3 and IGF1-R phosphorylation in a dose-dependent manner. This treatment also altered the metabolism of fatty acids and amino acids, especially when combined with insulin and levodopa. Suppression of the insulin signaling pathway and sucralose-induced changes in the metabolic profile could underlie a diet-acquired insulin resistance, previously associated with neurodegeneration, or may be an altered response to insulin or levodopa medical therapy. FAU - Covic, Marina AU - Covic M AUID- ORCID: 0000-0003-1206-782X AD - Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. AD - Department of Pharmacology and Biochemistry, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. FAU - Zjalic, Milorad AU - Zjalic M AUID- ORCID: 0000-0003-4076-2942 AD - Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. AD - Department of Molecular Medicine and Biotechnology, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia. FAU - Mihajlovic, Lovro AU - Mihajlovic L AD - Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. FAU - Pap, Marianna AU - Pap M AUID- ORCID: 0009-0003-1220-8239 AD - Department of Medical Biology and Central Electron Microscopic Laboratory, University of Pecs Medical School, 7624 Pecs, Hungary. FAU - Wagner, Jasenka AU - Wagner J AUID- ORCID: 0000-0002-1126-7523 AD - Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. FAU - Mandic, Dario AU - Mandic D AUID- ORCID: 0000-0002-3792-4384 AD - Clinical Institute of Laboratory Diagnostics, Osijek University Hospital, 31000 Osijek, Croatia. AD - Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. FAU - Debeljak, Zeljko AU - Debeljak Z AD - Clinical Institute of Laboratory Diagnostics, Osijek University Hospital, 31000 Osijek, Croatia. AD - Department of Pharmacology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. FAU - Heffer, Marija AU - Heffer M AUID- ORCID: 0000-0001-6770-7359 AD - Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia. LA - eng GR - IP-09-2014/Croatian Science Foundation/ GR - KK.01.1.1.02.0015/European Regional Development and Croatian Ministry of Science fund/ PT - Journal Article DEP - 20230704 PL - Switzerland TA - Metabolites JT - Metabolites JID - 101578790 PMC - PMC10385368 OTO - NOTNLM OT - dopaminergic neurons OT - insulin like growth factor 1 receptor OT - insulin signaling OT - neurodegeneration OT - non-nutritive sweetener COIS- The authors declare no conflict of interest. EDAT- 2023/07/29 11:52 MHDA- 2023/07/29 11:53 PMCR- 2023/07/04 CRDT- 2023/07/29 01:30 PHST- 2023/06/12 00:00 [received] PHST- 2023/06/27 00:00 [revised] PHST- 2023/06/29 00:00 [accepted] PHST- 2023/07/29 11:53 [medline] PHST- 2023/07/29 11:52 [pubmed] PHST- 2023/07/29 01:30 [entrez] PHST- 2023/07/04 00:00 [pmc-release] AID - metabo13070817 [pii] AID - metabolites-13-00817 [pii] AID - 10.3390/metabo13070817 [doi] PST - epublish SO - Metabolites. 2023 Jul 4;13(7):817. doi: 10.3390/metabo13070817.