scholarly journals Identification of Different Proteins Binding to Na, K-ATPase α1 in Lipopolysaccharide-Induced Acute Respiratory Distress Syndrome Cell Model by Proteomic Analysis

2021 ◽  
Author(s):  
Xu-Peng Wen ◽  
Yue-Zhong Zhang ◽  
He Huang ◽  
Tao-Hua Liu ◽  
Qi-Quan Wan
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Tight Junction ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
A549 Cell ◽  
Distress Syndrome ◽  
Cell Model ◽  
Interacting Proteins ◽  
Proteomic Approach ◽  
And Control

Abstract Acute respiratory distress syndrome (ARDS) is characterized by refractory hypoxemia caused by accumulation of pulmonary fluid, which is related to inflammatory cell infiltration, impaired tight junction of pulmonary epithelium and impaired Na, K-ATPase function, especially Na, K-ATPase α1 subunit. Up until now, the pathogenic mechanism at the level of protein during lipopolysaccharide- (LPS-) induced ARDS remains unclear. Using an unbiased, discovery and quantitative proteomic approach, the discovery of differentially expressed proteins binding to Na, K-ATPase α1 between LPS-induced A549 cell and control-A549 group is of particular interest for the current study. These proteins may help the clinical diagnosis and facilitate the personalized treatment of ARDS. We screened these Na, K-ATPase α1 interacting proteins, carried out the related Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and found evident phenomena of ubiquitination and deubiquitination, as well as the pathways related to autophagy. We also chose some of the differentiated expressing proteins with significant performance for further verification by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Among proteins with rich abundance, there were several intriguing ones, including the deubiquitinase (OTUB1), the tight junction protein zonula occludens-1 (ZO-1), the scaffold protein in CUL4B-RING ubiquitin ligase (CRL4B) complexes (CUL4B) and the autophagy-related protein sequestosome-1 (SQSTM1). Protein-protein interaction network showed that there were 244 significantly enriched co-expression among 60 proteins in the group control-A549. while the group LPS-A549 showed 43 significant enriched interactions among 29 proteins. In conclusion, our quantitative discovery-based proteomic approach identified commonalities, and revealed targets related to the occurrence and development of ARDS, being the first study to investigate significant differences in Na, K-ATPase α1 interacting proteins between LPS-induced ARDS cell model and control-A549 cell.

scholarly journals Endocannabinoid Anandamide Attenuates Acute Respiratory Distress Syndrome through Modulation of Microbiome in the Gut-Lung Axis

Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3305
Author(s):  
Muthanna Sultan ◽  
Kiesha Wilson ◽  
Osama A. Abdulla ◽  
Philip Brandon Busbee ◽  
Alina Hall ◽  
...  
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Tight Junction ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
Distress Syndrome ◽  
Lung Epithelial Cells ◽  
Tight Junction Proteins ◽  
Sequencing Data ◽  
16S Rna ◽  
Junction Proteins

Acute respiratory distress syndrome (ARDS) is a serious lung condition characterized by severe hypoxemia leading to limitations of oxygen needed for lung function. In this study, we investigated the effect of anandamide (AEA), an endogenous cannabinoid, on Staphylococcal enterotoxin B (SEB)-mediated ARDS in female mice. Single-cell RNA sequencing data showed that the lung epithelial cells from AEA-treated mice showed increased levels of antimicrobial peptides (AMPs) and tight junction proteins. MiSeq sequencing data on 16S RNA and LEfSe analysis demonstrated that SEB caused significant alterations in the microbiota, with increases in pathogenic bacteria in both the lungs and the gut, while treatment with AEA reversed this effect and induced beneficial bacteria. AEA treatment suppressed inflammation both in the lungs as well as gut-associated mesenteric lymph nodes (MLNs). AEA triggered several bacterial species that produced increased levels of short-chain fatty acids (SCFAs), including butyrate. Furthermore, administration of butyrate alone could attenuate SEB-mediated ARDS. Taken together, our data indicate that AEA treatment attenuates SEB-mediated ARDS by suppressing inflammation and preventing dysbiosis, both in the lungs and the gut, through the induction of AMPs, tight junction proteins, and SCFAs that stabilize the gut-lung microbial axis driving immune homeostasis.

scholarly journals Identification of Different Proteins Binding to Na, K-ATPase α1 in LPS-Induced ARDS Cell Model by Proteomic Analysis

2022 ◽  
Author(s):  
Xu-Peng Wen ◽  
Guo Long ◽  
Yue-Zhong Zhang ◽  
He Huang ◽  
Tao-Hua Liu ◽  
...  
Keyword(s):  
Tight Junction ◽  
Cell Model ◽  
A549 Cells ◽  
Interaction Network ◽  
Differentially Expressed ◽  
Interacting Proteins ◽  
Differentially Expressed Proteins ◽  
Kegg Analysis ◽  
Proteomic Approach ◽  
And Control

Abstract Background: Acute respiratory distress syndrome (ARDS) is characterized by refractory hypoxemia caused by accumulation of pulmonary fluid, which is related to inflammatory cell infiltration, impaired tight junction of pulmonary epithelium and impaired Na, K-ATPase function, especially Na, K-ATPase α1 subunit. Up until now, the pathogenic mechanism at the level of protein during lipopolysaccharide- (LPS-) induced ARDS remains unclear.Methods: Using an unbiased, discovery and quantitative proteomic approach, we discovered the differentially expressed proteins binding to Na, K-ATPase α1 between LPS-A549 cells and Control-A549 cells. These Na, K-ATPase α1 interacting proteins were screened by co-immunoprecipitation (Co-IP) technology. Among them, some of the differentially expressed proteins with significant performance were identified and quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The protein interaction network was constructed by the related Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Several differentially expressed proteins were validated by Western blot.Results: Of identified 1598 proteins, 89 were differentially expressed proteins between LPS-A549 cells and Control-A549 cells. Intriguingly, protein-protein interaction network showed that there were 244 significantly enriched co-expression among 60 proteins in the group control-A549. while the group LPS-A549 showed 43 significant enriched interactions among 29 proteins. The related GO and KEGG analysis found evident phenomena of ubiquitination and deubiquitination, as well as the pathways related to autophagy. Among proteins with rich abundance, there were several intriguing ones, including the deubiquitinase (OTUB1), the tight junction protein zonula occludens-1 (ZO-1), the scaffold protein in CUL4B-RING ubiquitin ligase (CRL4B) complexes (CUL4B) and the autophagy-related protein sequestosome-1 (SQSTM1).Conclusions: In conclusion, our proteomic approach revealed targets related to the occurrence and development of ARDS, being the first study to investigate significant differences in Na, K-ATPase α1 interacting proteins between LPS-induced ARDS cell model and control-A549 cell. These proteins may help the clinical diagnosis and facilitate the personalized treatment of ARDS.

scholarly journals The effect of preventive use of corticosteroids on postoperative complications after esophagectomy: A retrospective cohort study

2019 ◽  
Author(s):  
Heejoon Jeong ◽  
Ji Won Choi ◽  
Hyun Joo Ahn ◽  
Jie Ae Kim ◽  
Mikyung Yang ◽  
...  
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
Distress Syndrome ◽  
Tertiary Care ◽  
Multivariable Analysis ◽  
Wound Dehiscence ◽  
University Hospital ◽  
Control Group ◽  
And Control

Abstract Background: Although corticosteroids were known to reduce acute respiratory distress syndrome (ARDS) after esophagectomy, the efficacy of corticosteroid remains debatable. Moreover, the risk of anastomosis leakage or infection, which relates to the administration of corticosteroid is another concern. Therefore, we compared the incidence of composite complications between patients who received or not the preventive administration of corticosteroid in esophagectomy. Methods: All patients who underwent esophagectomy from 2010 to 2015 at a tertiary care university hospital, were reviewed in this retrospective study (n=1,041). Patients were divided into Steroid (n=120) and Control (n=860) groups based on the preventive administration of corticosteroid during surgery. The primary endpoint was the incidence of composite complications (acute respiratory distress syndrome, wound dehiscence, and infection). Comparison between the two groups was performed after adjustment of co-variables. Results: The incidence of composite complications was not different between Steroid and Control group (21.7% vs 17.4%, respectively; P=0.26). Incidence of complications in each category between Steroid and Control groups were not significantly different: acute respiratory distress syndrome (5.0% vs 3.8%; P=0.46), graft dehiscence (6.7% vs 4.8%; P=0.37), and infection (15.8% vs 12.8%; P=0.36). After propensity score matching, the difference between the groups was also not significant. In multivariable analysis, age, lower body mass index, diabetes mellitus and duration of operation were independent risk factors of composite complications. Additionally, intraoperative vasopressor was a risk factor of graft dehiscence (odds ratio, 2.06; 95% confidence interval, 1.03-4.12; P=0.0407). Conclusions: The preventive use of corticosteroid was not related to the incidence of composite complications after esophagectomy. Application of corticosteroid for prevention of acute respiratory distress syndrome is not recommended due to its lack of apparent benefit. Keywords: Acute respiratory distress syndrome, corticosteroid, esophagectomy.

COVID-19 – eine vaskuläre Systemerkrankung

2020 ◽  
Vol 49 (10) ◽  
pp. 418-421
Author(s):  
Christopher Werlein ◽  
Peter Braubach ◽  
Vincent Schmidt ◽  
Nicolas J. Dickgreber ◽  
Bruno Märkl ◽  
...  
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
Distress Syndrome

ZUSAMMENFASSUNGDie aktuelle COVID-19-Pandemie verzeichnet mittlerweile über 18 Millionen Erkrankte und 680 000 Todesfälle weltweit. Für die hohe Variabilität sowohl der Schweregrade des klinischen Verlaufs als auch der Organmanifestationen fanden sich zunächst keine pathophysiologisch zufriedenstellenden Erklärungen. Bei schweren Krankheitsverläufen steht in der Regel eine pulmonale Symptomatik im Vordergrund, meist unter dem Bild eines „acute respiratory distress syndrome“ (ARDS). Darüber hinaus zeigen sich jedoch in unterschiedlicher Häufigkeit Organmanifestationen in Haut, Herz, Nieren, Gehirn und anderen viszeralen Organen, die v. a. durch eine Perfusionsstörung durch direkte oder indirekte Gefäßwandschädigung zu erklären sind. Daher wird COVID-19 als vaskuläre Multisystemerkrankung aufgefasst. Vor dem Hintergrund der multiplen Organmanifestationen sind klinisch-pathologische Obduktionen eine wichtige Grundlage der Entschlüsselung der Pathomechanismen von COVID-19 und auch ein Instrument zur Generierung und Hinterfragung innovativer Therapieansätze.

Sign in / Sign up

Export Citation Format

Share Document