Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork

AIM: To investigate potential gene changes in trabecular meshwork (TM) induced by dexamethasone (DEX) in steroid-induced glaucoma (SIG). METHODS: The expression data of 24 cases from a public functional genomics data were sorted to identify the mechanisms of action of DEX on the TM. The relationship...

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Main Authors: Miao Wei, Lu-Ming Chen, Ze-Yu Huang, Guo-Wei Zhang, Huai-Jin Guan, Min Ji
Format: Article
Language:English
Published: Press of International Journal of Ophthalmology (IJO PRESS) 2022-08-01
Series:International Journal of Ophthalmology
Subjects:
Online Access:http://ies.ijo.cn/en_publish/2022/8/20220803.pdf
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author Miao Wei
Lu-Ming Chen
Ze-Yu Huang
Guo-Wei Zhang
Huai-Jin Guan
Min Ji
author_facet Miao Wei
Lu-Ming Chen
Ze-Yu Huang
Guo-Wei Zhang
Huai-Jin Guan
Min Ji
author_sort Miao Wei
collection DOAJ
description AIM: To investigate potential gene changes in trabecular meshwork (TM) induced by dexamethasone (DEX) in steroid-induced glaucoma (SIG). METHODS: The expression data of 24 cases from a public functional genomics data were sorted to identify the mechanisms of action of DEX on the TM. The relationships of the differentially expressed genes (DEGs) were enriched using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. In addition, the hub genes were screened by the Search Tool for the Retrieval of Interacting Genes Database (STRING) and Cytoscape tools. Finally, human TM cells (HTMCs) were treated with DEX to preliminarily explore the function of hub genes. RESULTS: Totally 47 DEGs, including 21 downregulated and 26 upregulated genes were identified. The primary enriched results of the DEGs consisted of inflammatory response, extracellular matrix (ECM), negative regulation of cell proliferation, TNF signalling pathway and the regulation of tryptophan channels by inflammatory mediators. Subsequently, pro-melanin-enriched hormone (PMCH) and Bradykinin B1 receptor (BDKRB1) were screened as hub genes. It is verified in GSE37474 data set. Western blot and quantitative real-time polymerase chain reaction (qPCR) results showed that protein and RNA expression levels of BDKRB1 were significantly decreased after DEX treatment, while PMCH was not significantly changed. CONCLUSION: BDKRB1 may be a key gene involved in SIG onset, providing a suitable therapeutic target for improving the prognosis of SIG patients.
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spelling doaj.art-5c7cf5fc39024580ad2fa057b26a33df2022-12-22T02:05:55ZengPress of International Journal of Ophthalmology (IJO PRESS)International Journal of Ophthalmology2222-39592227-48982022-08-011581240124810.18240/ijo.2022.08.0320220803Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshworkMiao Wei0Lu-Ming Chen1Ze-Yu Huang2Guo-Wei Zhang3Huai-Jin Guan4Min Ji5Min Ji. Eye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China. amyji1234@hotmail.comEye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, ChinaEye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, ChinaEye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, ChinaEye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, ChinaEye Institute, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, ChinaAIM: To investigate potential gene changes in trabecular meshwork (TM) induced by dexamethasone (DEX) in steroid-induced glaucoma (SIG). METHODS: The expression data of 24 cases from a public functional genomics data were sorted to identify the mechanisms of action of DEX on the TM. The relationships of the differentially expressed genes (DEGs) were enriched using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. In addition, the hub genes were screened by the Search Tool for the Retrieval of Interacting Genes Database (STRING) and Cytoscape tools. Finally, human TM cells (HTMCs) were treated with DEX to preliminarily explore the function of hub genes. RESULTS: Totally 47 DEGs, including 21 downregulated and 26 upregulated genes were identified. The primary enriched results of the DEGs consisted of inflammatory response, extracellular matrix (ECM), negative regulation of cell proliferation, TNF signalling pathway and the regulation of tryptophan channels by inflammatory mediators. Subsequently, pro-melanin-enriched hormone (PMCH) and Bradykinin B1 receptor (BDKRB1) were screened as hub genes. It is verified in GSE37474 data set. Western blot and quantitative real-time polymerase chain reaction (qPCR) results showed that protein and RNA expression levels of BDKRB1 were significantly decreased after DEX treatment, while PMCH was not significantly changed. CONCLUSION: BDKRB1 may be a key gene involved in SIG onset, providing a suitable therapeutic target for improving the prognosis of SIG patients.http://ies.ijo.cn/en_publish/2022/8/20220803.pdfdexamethasonetrabecular meshwork cellssteroid-induced glaucomadifferentially expressed genesprotein-protein interaction
spellingShingle Miao Wei
Lu-Ming Chen
Ze-Yu Huang
Guo-Wei Zhang
Huai-Jin Guan
Min Ji
Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
International Journal of Ophthalmology
dexamethasone
trabecular meshwork cells
steroid-induced glaucoma
differentially expressed genes
protein-protein interaction
title Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
title_full Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
title_fullStr Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
title_full_unstemmed Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
title_short Expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
title_sort expression profile analysis to identify potential gene changes induced by dexamethasone in the trabecular meshwork
topic dexamethasone
trabecular meshwork cells
steroid-induced glaucoma
differentially expressed genes
protein-protein interaction
url http://ies.ijo.cn/en_publish/2022/8/20220803.pdf
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