PMID- 36769295 OWN - NLM STAT- MEDLINE DCOM- 20230214 LR - 20230214 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 24 IP - 3 DP - 2023 Feb 3 TI - Gemfibrozil-Induced Intracellular Triglyceride Increase in SH-SY5Y, HEK and Calu-3 Cells. LID - 10.3390/ijms24032972 [doi] LID - 2972 AB - Gemfibrozil is a drug that has been used for over 40 years to lower triglycerides in blood. As a ligand for peroxisome proliferative-activated receptor-alpha (PPARalpha), which is expressed in many tissues, it induces the transcription of numerous genes for carbohydrate and lipid-metabolism. However, nothing is known about how intracellular lipid-homeostasis and, in particular, triglycerides are affected. As triglycerides are stored in lipid-droplets, which are known to be associated with many diseases, such as Alzheimer's disease, cancer, fatty liver disease and type-2 diabetes, treatment with gemfibrozil could adversely affect these diseases. To address the question whether gemfibrozil also affects intracellular lipid-levels, SH-SY5Y, HEK and Calu-3 cells, representing three different metabolically active organs (brain, lung and kidney), were incubated with gemfibrozil and subsequently analyzed semi-quantitatively by mass-spectrometry. Importantly, all cells showed a strong increase in intracellular triglycerides (SH-SY5Y: 170.3%; HEK: 272.1%; Calu-3: 448.1%), suggesting that the decreased triglyceride-levels might be due to an enhanced cellular uptake. Besides the common intracellular triglyceride increase, a cell-line specific alteration in acylcarnitines are found, suggesting that especially in neuronal cell lines gemfibrozil increases the transport of fatty acids to mitochondria and therefore increases the turnover of fatty acids for the benefit of additional energy supply, which could be important in diseases, such as Alzheimer's disease. FAU - Bachmann, Cornel Manuel AU - Bachmann CM AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. FAU - Janitschke, Daniel AU - Janitschke D AUID- ORCID: 0000-0001-8966-0184 AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. FAU - Lauer, Anna Andrea AU - Lauer AA AUID- ORCID: 0000-0002-8327-452X AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. AD - Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany. FAU - Erhardt, Tobias AU - Erhardt T AD - Physical Therapy, Campus Karlsruhe, SRH University of Applied Health Sciences, 76185 Karlsruhe, Germany. FAU - Hartmann, Tobias AU - Hartmann T AUID- ORCID: 0000-0001-7481-6430 AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. AD - Deutsches Institut fur DemenzPravention (DIDP), Saarland University, 66421 Homburg, Germany. FAU - Grimm, Marcus Otto Walter AU - Grimm MOW AUID- ORCID: 0000-0002-4160-6506 AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. AD - Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany. AD - Deutsches Institut fur DemenzPravention (DIDP), Saarland University, 66421 Homburg, Germany. FAU - Grimm, Heike Sabine AU - Grimm HS AD - Experimental Neurology, Saarland University, 66421 Homburg, Germany. AD - Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany. LA - eng GR - 01ED1509/the EU Joint Programme - Neurodegenerative Disease Research (JPND) and BMBF grants MIND-AD/ GR - 211696/European Commission under the frame-work programme of the European Union, LipiDiDiet/ GR - 01ED2003/EURO-FINGERS/ PT - Journal Article DEP - 20230203 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - Q8X02027X3 (Gemfibrozil) RN - 0 (Triglycerides) RN - 0 (Fatty Acids) RN - 0 (Hypolipidemic Agents) SB - IM MH - Humans MH - Gemfibrozil/pharmacology MH - *Alzheimer Disease/drug therapy MH - *Neuroblastoma/drug therapy MH - Triglycerides/metabolism MH - Fatty Acids MH - Hypolipidemic Agents/pharmacology/therapeutic use PMC - PMC9917468 OTO - NOTNLM OT - Alzheimer's disease OT - carnitines OT - gemfibrozil OT - lipid droplets OT - lipidomics OT - lung diseases OT - lyso-phosphatidylcholine OT - phosphatidylcholine OT - plasmalogens OT - renal diseases OT - triglycerides COIS- The authors declare no conflict of interest. EDAT- 2023/02/12 06:00 MHDA- 2023/02/15 06:00 PMCR- 2023/02/03 CRDT- 2023/02/11 01:25 PHST- 2022/12/28 00:00 [received] PHST- 2023/01/27 00:00 [revised] PHST- 2023/01/30 00:00 [accepted] PHST- 2023/02/11 01:25 [entrez] PHST- 2023/02/12 06:00 [pubmed] PHST- 2023/02/15 06:00 [medline] PHST- 2023/02/03 00:00 [pmc-release] AID - ijms24032972 [pii] AID - ijms-24-02972 [pii] AID - 10.3390/ijms24032972 [doi] PST - epublish SO - Int J Mol Sci. 2023 Feb 3;24(3):2972. doi: 10.3390/ijms24032972.