PMID- 35270021 OWN - NLM STAT- MEDLINE DCOM- 20220408 LR - 20220408 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 5 DP - 2022 Mar 7 TI - Hyperglycemia Promotes Endothelial Cell Senescence through AQR/PLAU Signaling Axis. LID - 10.3390/ijms23052879 [doi] LID - 2879 AB - Hyperglycemia is reported to accelerate endothelial cell senescence that contributes to diabetic complications. The underlying mechanism, however, remains elusive. We previously demonstrated AQR as a susceptibility gene for type 2 diabetes mellitus (T2DM) and showed that it was increased in multiple tissues in models with T2DM or metabolic syndrome. This study aimed to investigate the role of AQR in hyperglycemia-induced senescence and its underlying mechanism. Here, we retrieved several datasets of the aging models and found the expression of AQR was increased by high glucose and by aging across species, including C. elegans (whole-body), rat (cardiac tissues), and monkey (blood). we validated the increased AQR expression in senescent human umbilical vein endothelial cells (HUVECs). When overexpressed, AQR promoted the endothelial cell senescence, confirmed by an increased number of cells stained with senescence-associated beta-galactosidase and upregulation of CDKN1A (P21) as well as the prohibited cellular colony formation and G2/M phase arrest. To explore the mechanism by which AQR regulated the cellular senescence, transcriptomic analyses of HUVECs with the overexpression and knockdown of the AQR were performed. We identified 52 co-expressed genes that were enriched, in the terms of plasminogen activation, innate immunity, immunity, and antiviral defense. Among co-expressed genes, PLAU was selected to evaluate its contribution to senescence for its highest strength in the enrichment of the biological process. We demonstrated that the knockdown of PLAU rescued senescence-related phenotypes, endothelial cell activation, and inflammation in models induced by AQR or TNF-alpha. These findings, for the first time, indicate that AQR/PLAU is a critical signaling axis in the modulation of endothelial cell senescence, revealing a novel link between hyperglycemia and vascular dysfunction. The study may have implications in the prevention of premature vascular aging associated with T2DM. FAU - Wan, Yiqi AU - Wan Y AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Liu, Zhirui AU - Liu Z AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Wu, Andong AU - Wu A AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Khan, Abdul Haseeb AU - Khan AH AUID- ORCID: 0000-0003-4845-7774 AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Zhu, Ying AU - Zhu Y AUID- ORCID: 0000-0003-4259-5201 AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Ding, Shuangjin AU - Ding S AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Li, Xueer AU - Li X AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Zhao, Ya AU - Zhao Y AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Dai, Ximo AU - Dai X AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Zhou, Jin AU - Zhou J AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Liu, Jiankun AU - Liu J AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Li, Yuanyuan AU - Li Y AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Gong, Xueting AU - Gong X AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Liu, Man AU - Liu M AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. FAU - Tian, Xiao-Li AU - Tian XL AUID- ORCID: 0000-0002-0868-7025 AD - Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China. LA - eng GR - 2020YFC2002900/Ministry of Science and Technology/ GR - 81630034/National Natural Science Foundation of China/ GR - 20192ACB70002, 20181ACB20017, and 20181BCD40001/Jiangxi Science and Technology Department/ PT - Journal Article DEP - 20220307 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 SB - IM MH - Animals MH - *Biological Phenomena MH - Caenorhabditis elegans MH - Cells, Cultured MH - Cellular Senescence/genetics MH - *Diabetes Mellitus, Type 2 MH - Human Umbilical Vein Endothelial Cells/metabolism MH - Humans MH - *Hyperglycemia/genetics/metabolism MH - Rats PMC - PMC8911151 OTO - NOTNLM OT - AQR OT - PLAU OT - diabetes OT - endothelial senescence OT - inflammation COIS- The authors declare no conflict of interest. EDAT- 2022/03/11 06:00 MHDA- 2022/04/09 06:00 PMCR- 2022/03/07 CRDT- 2022/03/10 15:37 PHST- 2022/01/14 00:00 [received] PHST- 2022/02/23 00:00 [revised] PHST- 2022/03/02 00:00 [accepted] PHST- 2022/03/10 15:37 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/04/09 06:00 [medline] PHST- 2022/03/07 00:00 [pmc-release] AID - ijms23052879 [pii] AID - ijms-23-02879 [pii] AID - 10.3390/ijms23052879 [doi] PST - epublish SO - Int J Mol Sci. 2022 Mar 7;23(5):2879. doi: 10.3390/ijms23052879.