Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5
Pulmonary fibrosis is a serious disease characterized by extracellular matrix (ECM) component overproduction and remodeling. Insulin-like growth factor-binding protein 5 (IGFBP5) is a conserved member of the IGFBP family of proteins that is overexpressed in fibrotic tissues and promotes fibrosis. We...
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2021
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oai:doaj.org-article:c5a6d2ee7b824825a1564a8dc271b74b2021-11-25T17:58:17ZIdentification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP510.3390/ijms2222126091422-00671661-6596https://doaj.org/article/c5a6d2ee7b824825a1564a8dc271b74b2021-11-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/22/12609https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067Pulmonary fibrosis is a serious disease characterized by extracellular matrix (ECM) component overproduction and remodeling. Insulin-like growth factor-binding protein 5 (IGFBP5) is a conserved member of the IGFBP family of proteins that is overexpressed in fibrotic tissues and promotes fibrosis. We used RNA sequencing (RNAseq) to identify differentially expressed genes (DEGs) between primary lung fibroblasts (pFBs) of homozygous (HOMO) transgenic mice expressing human IGFBP5 (hIGFBP5) and wild type mice (WT). The results of the differential expression analysis showed 2819 DEGs in hIGFBP5 pFBs. Functional enrichment analysis confirmed the pro-fibrotic character of IGFBP5 and revealed its impact on fundamental signaling pathways, including cytokine–cytokine receptor interaction, focal adhesion, AGE-RAGE signaling, calcium signaling, and neuroactive ligand-receptor interactions, to name a few. Noticeably, 7% of the DEGs in hIGFBP5-expressing pFBs are receptors and integrins. Furthermore, hub gene analysis revealed 12 hub genes including Fpr1, Bdkrb2, Mchr1, Nmur1, Cnr2, P2ry14, and Ptger3. Validation assays were performed to complement the RNAseq data. They confirmed significant differences in the levels of the corresponding proteins in cultured pFBs. Our study provides new insights into the molecular mechanism(s) of IGFBP5-associated pulmonary fibrosis through possible receptor interactions that drive fibrosis and tissue remodeling.Xinh-Xinh NguyenLudivine RenaudCarol Feghali-BostwickMDPI AGarticleinsulin-like growth factor protein-5 (IGFBP5)transgenic modelG-protein-coupled receptor (GPCR)neuroactive ligand receptorfibrosistransmembrane receptorsBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 12609, p 12609 (2021) |
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DOAJ |
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EN |
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insulin-like growth factor protein-5 (IGFBP5) transgenic model G-protein-coupled receptor (GPCR) neuroactive ligand receptor fibrosis transmembrane receptors Biology (General) QH301-705.5 Chemistry QD1-999 |
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insulin-like growth factor protein-5 (IGFBP5) transgenic model G-protein-coupled receptor (GPCR) neuroactive ligand receptor fibrosis transmembrane receptors Biology (General) QH301-705.5 Chemistry QD1-999 Xinh-Xinh Nguyen Ludivine Renaud Carol Feghali-Bostwick Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
description |
Pulmonary fibrosis is a serious disease characterized by extracellular matrix (ECM) component overproduction and remodeling. Insulin-like growth factor-binding protein 5 (IGFBP5) is a conserved member of the IGFBP family of proteins that is overexpressed in fibrotic tissues and promotes fibrosis. We used RNA sequencing (RNAseq) to identify differentially expressed genes (DEGs) between primary lung fibroblasts (pFBs) of homozygous (HOMO) transgenic mice expressing human IGFBP5 (hIGFBP5) and wild type mice (WT). The results of the differential expression analysis showed 2819 DEGs in hIGFBP5 pFBs. Functional enrichment analysis confirmed the pro-fibrotic character of IGFBP5 and revealed its impact on fundamental signaling pathways, including cytokine–cytokine receptor interaction, focal adhesion, AGE-RAGE signaling, calcium signaling, and neuroactive ligand-receptor interactions, to name a few. Noticeably, 7% of the DEGs in hIGFBP5-expressing pFBs are receptors and integrins. Furthermore, hub gene analysis revealed 12 hub genes including Fpr1, Bdkrb2, Mchr1, Nmur1, Cnr2, P2ry14, and Ptger3. Validation assays were performed to complement the RNAseq data. They confirmed significant differences in the levels of the corresponding proteins in cultured pFBs. Our study provides new insights into the molecular mechanism(s) of IGFBP5-associated pulmonary fibrosis through possible receptor interactions that drive fibrosis and tissue remodeling. |
format |
article |
author |
Xinh-Xinh Nguyen Ludivine Renaud Carol Feghali-Bostwick |
author_facet |
Xinh-Xinh Nguyen Ludivine Renaud Carol Feghali-Bostwick |
author_sort |
Xinh-Xinh Nguyen |
title |
Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
title_short |
Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
title_full |
Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
title_fullStr |
Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
title_full_unstemmed |
Identification of Impacted Pathways and Transcriptomic Markers as Potential Mediators of Pulmonary Fibrosis in Transgenic Mice Expressing Human IGFBP5 |
title_sort |
identification of impacted pathways and transcriptomic markers as potential mediators of pulmonary fibrosis in transgenic mice expressing human igfbp5 |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/c5a6d2ee7b824825a1564a8dc271b74b |
work_keys_str_mv |
AT xinhxinhnguyen identificationofimpactedpathwaysandtranscriptomicmarkersaspotentialmediatorsofpulmonaryfibrosisintransgenicmiceexpressinghumanigfbp5 AT ludivinerenaud identificationofimpactedpathwaysandtranscriptomicmarkersaspotentialmediatorsofpulmonaryfibrosisintransgenicmiceexpressinghumanigfbp5 AT carolfeghalibostwick identificationofimpactedpathwaysandtranscriptomicmarkersaspotentialmediatorsofpulmonaryfibrosisintransgenicmiceexpressinghumanigfbp5 |
_version_ |
1718411827885375488 |