Yiran Zhang1, Liang Ma1. 1. Department of Cardiovascular Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Abstract
BACKGROUND: Calcific aortic valve disease (CAVD) is the most common type of valvular heart disease in the elderly. This study is aimed to explore molecular mechanism of CAVD via bioinformatics analysis. METHODS: The gene expression profiles of GSE51472 (including 5 normal aortic valve and 5 calcified aortic valve) and GSE83453 (including 8 normal aortic valve and 19 calcified aortic valve) were downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were screened using the MetaDE package in R software. Functional and pathway enrichment analysis were performed based on Gene ontology (GO) and KEGG pathway database. Then, STRING database, Cytoscape and MCODE were applied to construct the protein-protein interaction (PPI) network and screen hub genes. Pathway enrichment analysis was further performed for hub genes and gene clusters identified via module analysis. RESULTS: A total of 107 DEGs were identified in CAVD (53 up-regulated genes, and 54 down-regulated genes), and they were mainly enriched in the terms of immune response, extracellular matrix organization, leukocyte transendothelial migration, cell adhesion molecules (CAMs), and fatty acid metabolism. Five hub genes including VCAM1, MMP9, ITGB2, RAC2, and vWF were identified via PPI network, which were mainly enriched in terms of leukocyte transendothelial migration and cell adhesion. An independently down-regulated protein cluster containing ALDH2, HIBCH, ACADVL, ECHDC2, VAT1L, and MAOA was also identified via PPI network. CONCLUSIONS: The present study identified VCAM1, MMP9, ITGB2, RAC2, vWF and ALDH2 as key genes in the progression of CAVD. Immune cells infiltration might play a key role in the progression of CAVD, while ALDH2-mediated detoxification effect might play a protective role in CAVD. Further studies are needed to elucidate the pathogenesis of CAVD. 2019 Journal of Thoracic Disease. All rights reserved.
BACKGROUND: Calcific aortic valve disease (CAVD) is the most common type of valvular heart disease in the elderly. This study is aimed to explore molecular mechanism of CAVD via bioinformatics analysis. METHODS: The gene expression profiles of GSE51472 (including 5 normal aortic valve and 5 calcified aortic valve) and GSE83453 (including 8 normal aortic valve and 19 calcified aortic valve) were downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were screened using the MetaDE package in R software. Functional and pathway enrichment analysis were performed based on Gene ontology (GO) and KEGG pathway database. Then, STRING database, Cytoscape and MCODE were applied to construct the protein-protein interaction (PPI) network and screen hub genes. Pathway enrichment analysis was further performed for hub genes and gene clusters identified via module analysis. RESULTS: A total of 107 DEGs were identified in CAVD (53 up-regulated genes, and 54 down-regulated genes), and they were mainly enriched in the terms of immune response, extracellular matrix organization, leukocyte transendothelial migration, cell adhesion molecules (CAMs), and fatty acid metabolism. Five hub genes including VCAM1, MMP9, ITGB2, RAC2, and vWF were identified via PPI network, which were mainly enriched in terms of leukocyte transendothelial migration and cell adhesion. An independently down-regulated protein cluster containing ALDH2, HIBCH, ACADVL, ECHDC2, VAT1L, and MAOA was also identified via PPI network. CONCLUSIONS: The present study identified VCAM1, MMP9, ITGB2, RAC2, vWF and ALDH2 as key genes in the progression of CAVD. Immune cells infiltration might play a key role in the progression of CAVD, while ALDH2-mediated detoxification effect might play a protective role in CAVD. Further studies are needed to elucidate the pathogenesis of CAVD. 2019 Journal of Thoracic Disease. All rights reserved.
Authors: B F Stewart; D Siscovick; B K Lind; J M Gardin; J S Gottdiener; V E Smith; D W Kitzman; C M Otto Journal: J Am Coll Cardiol Date: 1997-03-01 Impact factor: 24.094
Authors: Pauli Ohukainen; Suvi Syväranta; Juha Näpänkangas; Kristiina Rajamäki; Panu Taskinen; Tuomas Peltonen; Satu Helske-Suihko; Petri T Kovanen; Heikki Ruskoaho; Jaana Rysä Journal: Ann Med Date: 2015-07-30 Impact factor: 4.709
Authors: Marc R Dweck; H J Khaw; G K Z Sng; E L C Luo; A Baird; M C Williams; P Makiello; S Mirsadraee; N V Joshi; E J R van Beek; N A Boon; J H F Rudd; D E Newby Journal: Eur Heart J Date: 2013-02-07 Impact factor: 29.983
Authors: Zhiping Cao; Jessica Minnier; Lijuan Liu; Kristin L Lyon Scott; Ashok P Reddy; Phillip A Wilmarth; Larry L David; Anthony P Barnes; Marjorie R Grafe; Sanjiv Kaul; Nabil J Alkayed; Catherine M Davis Journal: Sci Rep Date: 2022-05-25 Impact factor: 4.996
Authors: Oscar Coltell; Carolina Ortega-Azorín; Jose V Sorlí; Olga Portolés; Eva M Asensio; Carmen Saiz; Rocío Barragán; Ramon Estruch; Dolores Corella Journal: Nutrients Date: 2021-02-07 Impact factor: 5.717
Authors: Sarah Halawa; Najma Latif; Yuan-Tsan Tseng; Ayman M Ibrahim; Adrian H Chester; Ahmed Moustafa; Yasmine Aguib; Magdi H Yacoub Journal: Front Cardiovasc Med Date: 2022-04-06