MicroRNAs combined with the TLR4/TDAG8 mRNAs and proinflammatory cytokines are biomarkers for the rapid diagnosis of sepsis

The early diagnosis and treatment of sepsis are of particular importance to patient survival. To obtain novel biomarkers that serve as prompt indicators of sepsis, the current study screened the differentially expressed microRNAs (DEMs) that were associated with sepsis susceptibility. The correlation between the elucidated DEMs and the inflammatory response was also examined. The present study included 40 patients with sepsis and 40 healthy controls. RNA‑sequencing technology and bioinformatics analysis were applied to screen the DEMs between the two cohorts. The expression of these DEMs was subsequently verified by performing reverse transcription‑quantitative PCR (RT‑qPCR). In addition, IL‑6, IL‑21, C‑X‑C motif chemokine ligand‑8 (CXCL8) and monocyte chemoattractant protein‑1 (MCP‑1) levels, along with T‑cell death‑associated gene 8 (TDAG8) and toll‑like receptor 4 (TLR4) mRNA expression levels were assessed. The association between microRNA (miRNA/miR)‑3663‑3p and the secretion of various proinflammatory cytokines or TDAG8 and TLR4 mRNA expressions were subsequently evaluated by linear correlation analysis. The results revealed 305 DEMs (P<0.05; fold change >2) between patients with sepsis and healthy controls. Among these, the top 18 up‑ and downregulated miRNAs were selected for RT‑qPCR verification. In addition, the serum content of IL‑6, IL‑21, CXCL8 and MCP‑1, and the expression of TDAG8 and TLR4 mRNAs were significantly increased in patients with sepsis compared with healthy controls. Moreover, in patients with sepsis, a positive correlation was identified between miR‑3663‑3p and the secretion of inflammatory cytokines or TDAG8 and TLR4 mRNA expression. A positive correlation was also elucidated between TDAG8 and TLR4 mRNA expression and proinflammatory cytokine/chemokine secretion. Receiver operating characteristic curve analysis of miR‑3663‑3p expression, IL‑6, IL‑21, CXCL8 and MCP‑1 secretion and TDAG8 and TLR4 mRNA expression demonstrated that miRNA analysis may be invaluable for the diagnosis of sepsis. Collectively, the results determined that miR‑3663‑3p may be a potentially powerful diagnostic and predictive biomarker of sepsis and that the combined and simultaneous detection of several biomarkers, including proteins, miRNAs and mRNA may be a reliable approach for the fast diagnosis and early identification of sepsis.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

Molecular medicine reports - 26(2022), 5 vom: 16. Nov.

Sprache:

Englisch

Beteiligte Personen:

Xu, Xiyuan [VerfasserIn]
Bu, Baoying [VerfasserIn]
Tian, Hongjun [VerfasserIn]
Wu, Rina [VerfasserIn]
Yang, Jingping [VerfasserIn]

Links:

Volltext

Themen:

Biomarkers
Chemokines
Correlation analysis
Cytokines
Differentially expressed microRNAs
GPR65 protein, human
Interleukin-6
Journal Article
MicroRNAs
Proinflammatory cytokines
RNA, Messenger
Receptors, G-Protein-Coupled
Sepsis
T‑cell death‑associated gene 8 mRNA
TLR4 protein, human
Toll‑like receptor 4 mRNA
Toll-Like Receptor 4

Anmerkungen:

Date Completed 15.09.2022

Date Revised 13.10.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.3892/mmr.2022.12850

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346191262