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Wang Y, Han D, Zhou T, Chen C, Cao H, Zhang JZ, Ma N, Liu C, Song M, Shi J, Jin X, Cao F, Dong N. DUSP26 induces aortic valve calcification by antagonizing MDM2-mediated ubiquitination of DPP4 in human valvular interstitial cells. Eur Heart J 2021; 42:2935-2951. [PMID: 34179958 DOI: 10.1093/eurheartj/ehab316] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/21/2021] [Accepted: 05/07/2021] [Indexed: 12/21/2022] Open
Abstract
AIMS The morbidity and mortality rates of calcific aortic valve disease (CAVD) remain high while treatment options are limited. Here, we evaluated the role and therapeutic value of dual-specificity phosphatase 26 (DUSP26) in CAVD. METHODS AND RESULTS Microarray profiling of human calcific aortic valves and normal controls demonstrated that DUSP26 was significantly up-regulated in calcific aortic valves. ApoE-/- mice fed a normal diet or a high cholesterol diet (HCD) were infected with adeno-associated virus serotype 2 carrying DUSP26 short-hairpin RNA to examine the effects of DUSP26 silencing on aortic valve calcification. DUSP26 silencing ameliorated aortic valve calcification in HCD-treated ApoE-/- mice, as evidenced by reduced thickness and calcium deposition in the aortic valve leaflets, improved echocardiographic parameters (decreased peak transvalvular jet velocity and mean transvalvular pressure gradient, as well as increased aortic valve area), and decreased levels of osteogenic markers (Runx2, osterix, and osteocalcin) in the aortic valves. These results were confirmed in osteogenic medium-induced human valvular interstitial cells. Immunoprecipitation, liquid chromatography-tandem mass spectrometry, and functional assays revealed that dipeptidyl peptidase-4 (DPP4) interacted with DUSP26 to mediate the procalcific effects of DUSP26. High N6-methyladenosine levels up-regulated DUSP26 in CAVD; in turn, DUSP26 activated DPP4 by antagonizing mouse double minute 2-mediated ubiquitination and degradation of DPP4, thereby promoting CAVD progression. CONCLUSION DUSP26 promotes aortic valve calcification by inhibiting DPP4 degradation. Our findings identify a previously unrecognized mechanism of DPP4 up-regulation in CAVD, suggesting that DUSP26 silencing or inhibition is a viable therapeutic strategy to impede CAVD progression.
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Affiliation(s)
- Yongjun Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, Hubei 430022, China
| | - Dong Han
- National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, 28# Fuxing Road, Beijing 100853, China
| | - Tingwen Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, Hubei 430022, China
| | - Cheng Chen
- Institute of Geriatrics, National Clinical Research Center for Geriatrics Disease, Chinese PLA General Hospital, 28# Fuxing Road, Beijing 100853, China
| | - Hong Cao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, Hubei 430022, China
| | - Joe Z Zhang
- Stanford Cardiovascular Institute, Stanford School of Medicine, 265 Campus Drive, Stanford, CA 94305, USA
| | - Ning Ma
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), 96# Xingdao South Road, Haizhu District, Guangzhou, Guangdong 510320, China
| | - Chun Liu
- Stanford Cardiovascular Institute, Stanford School of Medicine, 265 Campus Drive, Stanford, CA 94305, USA
| | - Moshi Song
- Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 1# Beichen West Road, Beijing 100101, China
| | - Jiawei Shi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, Hubei 430022, China
| | - Xin Jin
- Department of Urology, The Second Xiangya Hospital, Central South University, 139# Renmin middle road, Changsha, Hunan 410011, China
| | - Feng Cao
- National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, 28# Fuxing Road, Beijing 100853, China
| | - Nianguo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, Hubei 430022, China
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Thompson EM, Stoker AW. A Review of DUSP26: Structure, Regulation and Relevance in Human Disease. Int J Mol Sci 2021; 22:ijms22020776. [PMID: 33466673 PMCID: PMC7828806 DOI: 10.3390/ijms22020776] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 01/10/2023] Open
Abstract
Dual specificity phosphatases (DUSPs) play a crucial role in the regulation of intracellular signalling pathways, which in turn influence a broad range of physiological processes. DUSP malfunction is increasingly observed in a broad range of human diseases due to deregulation of key pathways, most notably the MAP kinase (MAPK) cascades. Dual specificity phosphatase 26 (DUSP26) is an atypical DUSP with a range of physiological substrates including the MAPKs. The residues that govern DUSP26 substrate specificity are yet to be determined; however, recent evidence suggests that interactions with a binding partner may be required for DUSP26 catalytic activity. DUSP26 is heavily implicated in cancer where, akin to other DUSPs, it displays both tumour-suppressive and -promoting properties, depending on the context. Here we review DUSP26 by evaluating its transcriptional patterns, protein crystallographic structure and substrate binding, as well as its physiological role(s) and binding partners, its role in human disease and the development of DUSP26 inhibitors.
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Li P, Peng J, Zhou Y, Li Y, Liu X, Wang L, Zuo Z. Discovery of FIXa inhibitors by combination of pharmacophore modeling, molecular docking, and 3D-QSAR modeling. J Recept Signal Transduct Res 2018; 38:213-224. [PMID: 29724133 DOI: 10.1080/10799893.2018.1468784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Human Coagulation Factor IXa (FIXa), specifically inhibited at the initiation stage of the blood coagulation cascade, is an excellent target for developing selective and safe anticoagulants. To explore this inhibitory mechanism, 86 FIXa inhibitors were selected to generate pharmacophore models and subsequently SAR models. Both best pharmacophore model and ROC curve were built through the Receptor-Ligand Pharmacophore Generation module. CoMFA model based on molecular docking and PLS factor analysis methods were developed. Model propagations values are q2 = 0.709, r2 = 0.949, and r2pred = 0.905. The satisfactory q2 value of 0.609, r2 value of 0.962, and r2pred value of 0.819 for CoMSIA indicated that the CoMFA and CoMSIA models are both available to predict the inhibitory activity on FIXa. On the basis of pharmacophore modeling, molecular docking, and 3D-QSAR modeling screening, six molecules are screened as potential FIXa inhibitors.
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Affiliation(s)
- Penghua Li
- a School of Chemical Engineering , Sichuan University of Science and Engineering , Zigong , PR China
| | - Jiale Peng
- a School of Chemical Engineering , Sichuan University of Science and Engineering , Zigong , PR China
| | - Yeheng Zhou
- a School of Chemical Engineering , Sichuan University of Science and Engineering , Zigong , PR China
| | - Yaping Li
- a School of Chemical Engineering , Sichuan University of Science and Engineering , Zigong , PR China
| | - XingYong Liu
- a School of Chemical Engineering , Sichuan University of Science and Engineering , Zigong , PR China
| | - LiangLiang Wang
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , PR China.,c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming , PR China
| | - ZhiLi Zuo
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , PR China.,c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming , PR China
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