PMID- 38444735 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240307 IS - 2405-5808 (Electronic) IS - 2405-5808 (Linking) VI - 38 DP - 2024 Jul TI - Gemigliptin, a potent selective dipeptidyl peptidase 4 inhibitor, protects endothelial progenitor cells by oxidative stress via caspase-3 dependent pathway. PG - 101673 LID - 10.1016/j.bbrep.2024.101673 [doi] LID - 101673 AB - Endothelial progenitor cells (EPCs) are exclusive players in vasculogenesis and endothelial regeneration. EPCs are of two types and their differentiation is mediated by different growth factors. A decrease in EPC number and function causes cardiovascular abnormalities and reduced angiogenesis. Various studies has documented a role of EPCs in diabetes. EPCs treatment with different drugs improve insulin secretion but causes other abnormalities. In vivo and in vitro studies have reported anti glycation effect of gemigliptin but no data is available on in vitro effect of gemigliptin on EPC number and functional credibility. The current study was aimed to find an in vitro effect of gemigliptin on EPC number and function along with an effective treatment dose of gemigliptin. EPCs were isolated, cultured and phenotypically characterized using Dil- AcLDL and ulex-lectin fluorescence staining. EPCs were then treated with different doses of Zemiglo and their viability analyzed with viability assay using water-soluble tetrazolium salt (WST-1), by Annexin V and Propidium Iodide (PI) staining, senescence-associated beta-galactosidase (SA-beta-gal) staining, western blot and Flow cytometric analysis of apoptotic signals. The results demonstrated that the isolated EPCs has typical endothelial phenotypes. And these EPCs were of two types based on morphology i.e., early and late EPCs. Gemigliptin dose dependently improved the EPCs morphology and increased EPCs viability, the most effective dose being the 20 muM. Gemigliptin at 10 muM, 20 muM and 50 muM significantly increased the BCL-2 levels and at 20 muM significantly decreased the Caspase-3 levels in EPCs. In conclusion, gemigliptin dose dependently effects the EPCs viability and morphology through Caspase-3 signaling. Our results are the first report of gemigliptin effect on EPC viability and morphology. CI - (c) 2024 Published by Elsevier B.V. FAU - Lee, Mijung AU - Lee M AD - Neurology, Center for Medical Innovation, Seoul National University Hospital, Seoul, South Korea. FAU - Tariq, Amna Rashid AU - Tariq AR AD - Neurology, Center for Medical Innovation, Seoul National University Hospital, Seoul, South Korea. FAU - Kim, Manho AU - Kim M AD - Neurology, Seoul National University Hospital, Neuroscience and Dementia Research Institute, Seoul National University College of Medicine, Seoul, South Korea. LA - eng PT - Journal Article DEP - 20240302 PL - Netherlands TA - Biochem Biophys Rep JT - Biochemistry and biophysics reports JID - 101660999 PMC - PMC10914559 OTO - NOTNLM OT - Caspase-3 OT - EPC morphology OT - Endothelial progenitor cell OT - Zemiglo COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2024/03/06 06:43 MHDA- 2024/03/06 06:44 PMCR- 2024/03/02 CRDT- 2024/03/06 03:53 PHST- 2023/12/22 00:00 [received] PHST- 2024/02/14 00:00 [revised] PHST- 2024/02/20 00:00 [accepted] PHST- 2024/03/06 06:44 [medline] PHST- 2024/03/06 06:43 [pubmed] PHST- 2024/03/06 03:53 [entrez] PHST- 2024/03/02 00:00 [pmc-release] AID - S2405-5808(24)00037-2 [pii] AID - 101673 [pii] AID - 10.1016/j.bbrep.2024.101673 [doi] PST - epublish SO - Biochem Biophys Rep. 2024 Mar 2;38:101673. doi: 10.1016/j.bbrep.2024.101673. eCollection 2024 Jul.