scholarly journals Effect of houttuynia on improving lung injury in chronic obstructive pulmonary disease by regulating the TLR4 signaling pathway

2021 ◽  
Author(s):  
Wei Wang ◽  
Wei Wu ◽  
Bin Wang ◽  
Feng Gao
Author(s):  
Г.Ф. Корытина ◽  
Ю.Г. Азнабаева ◽  
М.Ю. Темнов ◽  
Ш.Р. Зулькарнеев ◽  
Л.З. Ахмадишина ◽  
...  

Хроническая обструктивная болезнь легких (ХОБЛ) - это многофакторное хроническое воспалительное заболевание респираторной системы. Одной из причин трудностей в идентификации маркеров ХОБЛ является фенотипическая гетерогенность. Цель - идентификация новых молекулярных маркеров патогенетических изменений, связанных с фенотипической гетерогеностью ХОБЛ на основе анализа профиля экспрессии генов вовлеченных в развитие иммунного ответа в мононуклеарных клетках периферической крови и анализа ассоциации полиморфных вариантов новых кандидатных генов с развитием ХОБЛ. Проведен сравнительный анализ профиля экспрессии панели 84 генов, кодирующих цитокины, хемокины в PBMC пациентов с различными фенотипами ХОБЛ: с частыми обострениями N=10 и редкими обострениями N=10 и контрольной группе N=10. Для анализа ассоциации использовали образцы ДНК больных ХОБЛ (N=601) и контроля (N=617), методом ПЦР в реальном времени проведен анализ 56 полиморфных локусов генов JAK/STAT-, NFKB1-сигнального путей, кодирующих белки, вовлеченные в реализацию реакций иммунного ответа и воспаления. Выявлены значимые изменения профиля экспрессии ряда генов в группе больных ХОБЛ с частыми обострениями. Впервые получены данные по вкладу полиморфных локусов генов JAK1, JAK3, STAT3, ICAM1, PECAM1, SAA1, NFKB1, IL17A, CCR2, CCR6, CCL8, CRP, CX3CL1, CXCR2, CXCR1, TNFRSF1A, IL20, IL19, в развитие данного заболевания. Выявлены специфические генетические маркеры развития фенотипа с частыми обострениями: CXCR2, TNFRSF1B, CCR6, TNF, IL1B, IL10, JAK3, PECAM1. Установлена ассоциация полиморфных вариантов генов TNFRSF1B, TNFRSF1A, CCL23, CXCR2, JAK1, NFKB1, PECAM1, ICAM1, STAT1, LTA, CD14, CXCL12, CCL20, ADIPOR1 и CX3CR1 с показателями функции внешнего дыхания. Определена взаимосвязь аллельных вариантов генов: IL17A, JAK1, JAK3, NFKB1, CCL5, CCL11, CCL17, CXCL8, TNFRSF1A, CX3CL1, CCL8, CCR6, CXCR2, IL19, IL20 с индексом курения. Chronic obstructive pulmonary disease (COPD) is a multifactorial heterogeneous chronic inflammatory disease of the respiratory system predominantly affecting the lower respiratory pathways and the lung parenchyma. One of the reason for difficulties in identifying of COPD markers is phenotypic heterogeneity. The goal of the study is the identification of new molecular markers of pathogenetic changes associated with phenotypic heterogeneity of COPD based on the analysis of the expression profile of genes involved in the development of the immune response in peripheral blood mononuclear cells and analysis of the association of polymorphic variants of new candidate genes with COPD. Methods: to identify differential gene expression in COPD we performed expression profiling of 84 cytokines and chemokines genes in peripheral blood samples from COPD (N=10 with frequent exacerbation phenotype, N=10 rare exacerbation phenotype) and N=10 smoking controls. RNA was isolated from PBMCs, and gene expression was assessed using RT2 Profiler PCR Arrays «Human Cytokines & Chemokines PCR Array»» (Qiagen, Valencia, CA, USA). 56 SNPs of JAK / STAT-, NFKB1-signaling pathway and inflammatory response molecules genes were genotyped by the real-time polymerase chain reaction (TaqMan assays) in a case-control study (601 COPD patients and 617 controls). Results. Significant changes were revealed in the expression profile of several genes in “frequent exacerbator» COPD phenotype. The results indicate a down-regulation of inflammatory molecules in “frequent exacerbator» COPD phenotype. For the first time, we indicated the contribution of JAK1, JAK3, STAT3, ICAM1, PECAM1, SAA1, NFKB1, IL17A, CCR2, CCR6, CCL8, CRP, CX3CL1, CXCR2, CXCR1, TNFRSF1A, IL20, IL19 genes polymorphisms to COPD. Specific genetic markers of “frequent exacerbator” COPD phenotype have been identified, which are modifiers of COPD progression, including polymorphic loci of the CXCR2, TNFRSF1B, CCR6, TNF, IL1B, IL10, JAK3, PECAM1 genes. A significant genotype-dependent variation of lung function parameters was observed for CXCR2, JAK1, NFKB1, PECAM1, ICAM1, STAT1, LTA, CD14, CXCL12, CCL20, ADIPOR1 and CX3CR1 genes. The relationship of IL17A, JAK1, JAK3, NFKB1, CCL5, CCL11, CCL17, CXCL8, TNFRSF1A, CX3CL1, CCL8, CCR6, CXCR2, IL19, IL20 genes with smoking pack-years was found.


2021 ◽  
Author(s):  
Fengshou Chen ◽  
Haijia Hou ◽  
Bing Tang

Abstract Background: Chronic obstructive pulmonary disease (COPD) and acute myocardial infarction (AMI) have a strong association. We aimed to study the relationships between COPD and AMI, and reveal potential therapeutic targets and biomarkers. Materials and methods: The dataset GSE38974 and GSE60993 were downloaded from the Gene Expression Omnibus (GEO) database to analyze the intersections among differentially expressed genes (DEGs). Common DEGs were identified and performed functional enrichment analyses. The hub genes were obtained based on the protein-protein interaction (PPI) network by cytoHubba in Cytoscape software. The receiver operator characteristic (ROC) curve analysis was applied to identify the diagnosis efficacy of hub genes. The relationship between hub genes and these two diseases in the CTD database were validated. Finally, the transcription factors (TFs) corresponding to hub genes were also analyzed. Results: In our study, sixty-five common DEGs were obtained in COPD and AMI. GO enrichment analysis indicated that inflammation or apoptotic biological processes are significant enriched biological processes. Common DEGs were mostly enriched in pathways including apoptosis, HIF-1 signaling pathway, TNF signaling pathway, and cytokine-cytokine receptor interaction. MMP9, SOCS3, MCL1, ERBB2 and S100A12 were identified as the hub genes. Furthermore, we found that the expression of hub genes was significantly associated with a diagnosis efficacy of COPD and AMI. We also validated the relationship between the hub genes and these two diseases in the CTD database. We also found that ELK1, ETV4, STAT3 and TFAP2A were significant TFs, which interacted with the hub genes. Conclusion: In conclusion, our study revealed the communal DEGs and related mechanisms between the pathophysiology of COPD and AMI. MMP9, SOCS3, MCL1, ERBB2 and S100A12 were identified as the hub genes that are associated with COPD and AMI. Our study provides new ideas and evidence for further exploration of the mechanisms and treatment of COPD and AMI.


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