The Effect and Mechanism of lncRNA NBR2 Regulating Endothelial Pyroptosis by Targeting GSDMD in Sepsis

Study Overview
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Brief Summary
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Sepsis is a life-threatening disease characterized by multi-organ failure due to dysregulated host response to infection, with high global mortality of 30-50%. One of the most important pathophysiologic hallmarks in sepsis is vascular endothelial injury that contributes to the severity and outcome of the syndrome. Effective treatments for endothelial cell injury in sepsis have been lacking to improve prognosis. Endothelial pyroptosis is a vital mechanism of vascular endothelial injury in sepsis; mitigation or abolishment of endothelial cell pyroptosis alleviate vascular endothelial damage and improve the prognosis of sepsis mice. Gasdermin D (GSDMD) mediated endothelial pyroptosis plays a critical role in modulating vascular endothelial injury in sepsis. Long non-coding RNA (lncRNA), as a class of non-coding protein RNA longer than 200 kD, contributes to a variety of cell biological processes. The dysregulation of lncRNA results in the occurrence and development of tumors, diabetes, sepsis and other diseases. Therefore, we detected lncRNA and mRNA expression profile in 26 blood samples of septic patients using Arraystar LncRNA Microarray. We found lncRNA NBR2 regulates septic endothelial pyroptosis. To assess any correlation of pyroptosis levels with relevant endothelial cell injury parameters and determine the prognostic value in septic patients. we measured the levels of pyroptosis in patients admitted to the Department of Critical Care Medicine for sepsis and investigated the correlation with related markers of endothelium injury. Furthermore, we determined the prognostic value of pyroptosis levels for the mortality of patients with sepsis.

Detailed Description
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We measured the levels of pyroptosis in patients admitted to the Department of Critical Care Medicine for sepsis and investigated the correlation with related markers of endothelium injury. Furthermore, we determined the prognostic value of pyroptosis levels for the mortality of patients with sepsis.

Official Title
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Zhongda Hospital, School of Medicine, Southeast University

Conditions
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Sepsis

Intervention / Treatment
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* Other: the levels of pyroptosis


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Suspected or confirmed infection The sequential organ failure score (SOFA score) increases by more than or equal to 2 points on the basis Sign the informed consent Exclusion Criteria: the age < 18 or > 80 years of age pregnant tumor viral hepatitis or liver cirrhosis chronic renal tubular nephritis, chronic renal insufficiency ulcerative colitis or crohn's disease active systemic lupus erythematosus (SLE) acute myocardial infarction acute pancreatitis engaged in other clinical subjects

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| survivors<br>Improve or under treatment | Other: the levels of pyroptosis<br>* Blood samples were taken to detect plasma lncRNA NBR2 levels and GSDMD protein level.<br>|
| nonsurvivors<br>all-cause 28-day mortality | Other: the levels of pyroptosis<br>* Blood samples were taken to detect plasma lncRNA NBR2 levels and GSDMD protein level.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 28-day mortality | all-cause 28-day mortality | 28-day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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endothelial cell injury, pyroptosis, lncRNA NBR2, gasdermin D