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

• Conditions: Sepsis
• Interventions: Other: the levels of pyroptosis

• Registration Number: NCT04427371
• Lead Sponsor: Jianfeng Xie

Brief Summary

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

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.

Study Timeline

• Study Start: 2020-05-22
• Status Verified: 2020-06
• Study First Submitted: 2020-06-09
• Study First Submitted QC: 2020-06-09
• Last Update Submitted: 2020-06-09
• Study First Posted: 2020-06-11
• Last Update Posted: 2020-06-11
• Primary Completion: 2022-12-31
• Study Completion: 2023-12-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 100

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

1. the age < 18 or > 80 years of age
2. pregnant
3. tumor
4. viral hepatitis or liver cirrhosis
5. chronic renal tubular nephritis, chronic renal insufficiency
6. ulcerative colitis or crohn's disease
7. active systemic lupus erythematosus (SLE)
8. acute myocardial infarction
9. acute pancreatitis
10. engaged in other clinical subjects

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
nonsurvivors	the levels of pyroptosis	all-cause 28-day mortality
survivors	the levels of pyroptosis	Improve or under treatment

Primary Outcome Measures

Name	Time	Method
28-day mortality	28-day	all-cause 28-day mortality

Trial Locations

Locations (1)

Zhongda Hospital, School of Medicine, Southeast University; 🇨🇳 Nanjing, Jiangsu, China