PMID- 28253732 OWN - NLM STAT- MEDLINE DCOM- 20180312 LR - 20220321 IS - 1557-7716 (Electronic) IS - 1523-0864 (Print) IS - 1523-0864 (Linking) VI - 27 IP - 14 DP - 2017 Nov 10 TI - The Indirubin Derivative 6-Bromoindirubin-3'-Oxime Activates Proteostatic Modules, Reprograms Cellular Bioenergetic Pathways, and Exerts Antiaging Effects. PG - 1027-1047 LID - 10.1089/ars.2016.6910 [doi] AB - AIMS: Organismal aging can be delayed by mutations that either activate stress responses or reduce the nutrient-sensing pathway signaling; thus, by using Drosophila melanogaster as an in vivo experimental screening platform, we searched for compounds that modulate these pathways. RESULTS: We noted that oral administration of the glycogen synthase kinase 3 (Gsk-3) inhibitor 6-bromoindirubin-3'-oxime (6BIO) in Drosophila flies extended healthy life span. 6BIO is not metabolized in fly tissues, modulated bioenergetic pathways, decreased lipid and glucose tissue load, activated antioxidant and proteostatic modules, and enhanced resistance to stressors. Mechanistically, we found that the effects on the stress-responsive pathways were largely dependent on the activity of the transcription factor nuclear factor erythroid 2-related factor (Nrf-2). Genetic inhibition of Gsk-3 largely phenocopied the 6BIO-mediated effects, while high levels of Gsk-3 expression and/or kinase activity suppressed proteostatic modules and reduced flies' longevity; these effects were partially rescued by 6BIO. Also, 6BIO was found to partially reduce the 3-phosphoinositide-dependent protein kinase-1 (Pdpk1) activity, a major effector of the insulin/insulin-like growth factor-1 cell signaling pathways. INNOVATION: 6BIO exerts the unique property of increasing stress tolerance and in parallel partially suppressing the nutrient-sensing pathway signaling. CONCLUSION: Our findings suggest that the 6BIO scaffold can be used for the development of novel antiaging compounds. Antioxid. Redox Signal. 27, 1027-1047. FAU - Tsakiri, Eleni N AU - Tsakiri EN AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . FAU - Gaboriaud-Kolar, Nicolas AU - Gaboriaud-Kolar N AD - 2 Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens , Athens, Greece . FAU - Iliaki, Kalliopi K AU - Iliaki KK AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . FAU - Tchoumtchoua, Job AU - Tchoumtchoua J AD - 2 Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens , Athens, Greece . FAU - Papanagnou, Eleni-Dimitra AU - Papanagnou ED AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . FAU - Chatzigeorgiou, Sofia AU - Chatzigeorgiou S AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . FAU - Tallas, Konstantinos D AU - Tallas KD AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . FAU - Mikros, Emmanuel AU - Mikros E AD - 3 Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens , Athens, Greece . FAU - Halabalaki, Maria AU - Halabalaki M AD - 2 Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens , Athens, Greece . FAU - Skaltsounis, Alexios-Leandros AU - Skaltsounis AL AD - 2 Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens , Athens, Greece . FAU - Trougakos, Ioannis P AU - Trougakos IP AD - 1 Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens , Athens, Greece . LA - eng PT - Journal Article DEP - 20170516 PL - United States TA - Antioxid Redox Signal JT - Antioxidants & redox signaling JID - 100888899 RN - 0 (6-bromoindirubin-3'-oxime) RN - 0 (Drosophila Proteins) RN - 0 (Indoles) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Oximes) RN - EC 2.7.11.26 (Glycogen Synthase Kinase 3) SB - IM MH - Administration, Oral MH - Aging/*drug effects/metabolism MH - Animals MH - Disease Models, Animal MH - Drosophila Proteins/metabolism MH - Drosophila melanogaster/*drug effects/metabolism MH - Energy Metabolism/*drug effects MH - Female MH - Glycogen Synthase Kinase 3/metabolism MH - Humans MH - Indoles/*administration & dosage/pharmacology MH - Male MH - Metabolic Networks and Pathways/drug effects MH - NF-E2-Related Factor 2/metabolism MH - Oximes/*administration & dosage/pharmacology MH - Proteostasis/*drug effects PMC - PMC5651956 OTO - NOTNLM OT - 6-bromoindirubin-3'-oxime OT - Gsk-3 OT - Nrf-2 OT - Pdpk1 OT - aging OT - proteostasis COIS- No competing financial interests exist. EDAT- 2017/03/04 06:00 MHDA- 2018/03/13 06:00 PMCR- 2017/11/10 CRDT- 2017/03/04 06:00 PHST- 2017/03/04 06:00 [pubmed] PHST- 2018/03/13 06:00 [medline] PHST- 2017/03/04 06:00 [entrez] PHST- 2017/11/10 00:00 [pmc-release] AID - 10.1089/ars.2016.6910 [pii] AID - 10.1089/ars.2016.6910 [doi] PST - ppublish SO - Antioxid Redox Signal. 2017 Nov 10;27(14):1027-1047. doi: 10.1089/ars.2016.6910. Epub 2017 May 16.