Identification of robust genetic signatures associated with lipopolysaccharide-induced acute lung injury onset and astaxanthin therapeutic effects by integrative analysis of RNA sequencing data and GEO datasets

Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are life-threatening clinical conditions predominantly arising from uncontrolled inflammatory reactions. It has been found that the administration of astaxanthin (AST) can exert protective effects against lipopolysaccharide (LPS)-induced ALI; however, the robust genetic signatures underlying LPS induction and AST treatment remain obscure. Here we performed a statistical meta-analysis of five publicly available gene expression datasets from LPS-induced ALI mouse models, conducted RNA-sequencing (RNA-seq) to screen differentially expressed genes (DEGs) in response to LPS administration and AST treatment, and integrative analysis to determine robust genetic signatures associated with LPS-induced ALI onset and AST administration. Both the meta-analyses and our experimental data identified a total of 198 DEGs in response to LPS administration, and 11 core DEGs (Timp1, Ly6i, Cxcl13, Irf7, Cxcl5, Ccl7, Isg15, Saa3, Saa1, Tgtp1, and Gbp11) were identified to be associated with AST therapeutic effects. Further, the 11 core DEGs were verified by quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC), and functional enrichment analysis revealed that these genes are primarily associated with neutrophils and chemokines. Collectively, these findings unearthed the robust genetic signatures underlying LPS administration and the molecular targets of AST for ameliorating ALI/ARDS which provide directions for further research.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Aging - 12(2020), 18 vom: 23. Sept., Seite 18716-18740

Sprache:

Englisch

Beteiligte Personen:

Mao, Kaimin [VerfasserIn]
Geng, Wei [VerfasserIn]
Liao, Yuhan [VerfasserIn]
Luo, Ping [VerfasserIn]
Zhong, Hua [VerfasserIn]
Ma, Pei [VerfasserIn]
Xu, Juanjuan [VerfasserIn]
Zhang, Shuai [VerfasserIn]
Tan, Qi [VerfasserIn]
Jin, Yang [VerfasserIn]

Links:

Volltext

Themen:

Acute lung injury
Astaxanthin
Genetic signatures
Integrative analysis
Journal Article
RNA sequencing

Anmerkungen:

Date Revised 01.02.2023

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.18632/aging.104042

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM315406992