PMID- 34101862 OWN - NLM STAT- MEDLINE DCOM- 20220125 LR - 20220125 IS - 1099-0801 (Electronic) IS - 0269-3879 (Linking) VI - 35 IP - 11 DP - 2021 Nov TI - Comparative metabolomics and lipidomics study to evaluate the metabolic differences between first- and second-generation mammalian or mechanistic target of rapamycin inhibitors. PG - e5190 LID - 10.1002/bmc.5190 [doi] AB - Mammalian or mechanistic target of rapamycin (mTOR) drives its fundamental cellular functions through two distinct catalytic subunits, mTORC1 and mTORC2, and is frequently dysregulated in most cancers. To treat cancers, developed mTOR inhibitors have been classified into first and second generations based on their ability to inhibit single (first-generation) and dual (second-generation) mTOR subunits. However, the underlying metabolic differences due to the effects of first- and second-generation mTOR inhibitors have not been clearly evaluated. In this study, rapamycin (sirolimus) and AZD8055 and PP242 were selected as first- and second-generation mTOR inhibitors, respectively, to evaluate the metabolic differences due to these two generations of mTOR inhibitors after a single oral dose using untargeted metabolomics and lipidomics approaches. The metabolic differences at each time point were compared using multivariate analysis. The multivariate and data analyses showed that metabolic disparity was more prominent within 8 h after drug administration and a broad class of metabolites were affected by the administration of both generations of mTOR inhibitors. Among the metabolite classes, changes in the pattern of fatty acids and glycerophospholipids were opposite, specifically at 4 and 8 h between the two generations of mTOR inhibitors. We speculate that the inhibition of the mTORC2 subunit by the second-generation mTOR inhibitor may have resulted in a distinct metabolic pattern between the first- and second-generation inhibitors. Finally, the findings of this study could assist in a more detailed understanding of the key metabolic differences caused by first- and second-generation mTOR inhibitors. CI - (c) 2021 John Wiley & Sons, Ltd. FAU - Rashid, Md Mamunur AU - Rashid MM AD - Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea. AD - Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul, South Korea. FAU - Lee, Hyunbeom AU - Lee H AD - Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea. FAU - Park, Jinyoung AU - Park J AD - Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea. FAU - Jung, Byung Hwa AU - Jung BH AUID- ORCID: 0000-0002-7504-7132 AD - Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea. AD - Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul, South Korea. LA - eng GR - 2E30480/Korea Institute of Science and Technology/ GR - HI18C1860/Ministry of Health & Welfare, Republic of Korea/ GR - NRF2013M3A9C4078145/Ministry of Science, ICT and Future Planning/ PT - Journal Article DEP - 20210623 PL - England TA - Biomed Chromatogr JT - Biomedical chromatography : BMC JID - 8610241 RN - 0 (Biomarkers) RN - 0 (MTOR Inhibitors) SB - IM MH - Animals MH - Biomarkers/blood/urine MH - Chromatography, High Pressure Liquid MH - Lipidomics/*methods MH - MTOR Inhibitors/*pharmacology MH - Male MH - Mass Spectrometry MH - Metabolome/*drug effects MH - Metabolomics/*methods MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - UHPLC-Orbitrap-MS OT - lipidomics OT - mTOR inhibitor OT - mammalian or mechanistic target of rapamycin, metabolomics EDAT- 2021/06/09 06:00 MHDA- 2022/01/27 06:00 CRDT- 2021/06/08 17:38 PHST- 2021/05/30 00:00 [revised] PHST- 2021/03/11 00:00 [received] PHST- 2021/06/04 00:00 [accepted] PHST- 2021/06/09 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] PHST- 2021/06/08 17:38 [entrez] AID - 10.1002/bmc.5190 [doi] PST - ppublish SO - Biomed Chromatogr. 2021 Nov;35(11):e5190. doi: 10.1002/bmc.5190. Epub 2021 Jun 23.