Increased Autotaxin Levels in Severe COVID-19, Correlating with IL-6 Levels, Endothelial Dysfunction Biomarkers, and Impaired Functions of Dendritic Cells

Autotaxin (ATX; ENPP2) is a secreted lysophospholipase D catalyzing the extracellular production of lysophosphatidic acid (LPA), a pleiotropic signaling phospholipid. Genetic and pharmacologic studies have previously established a pathologic role for ATX and LPA signaling in pulmonary injury, inflammation, and fibrosis. Here, increased ENPP2 mRNA levels were detected in immune cells from nasopharyngeal swab samples of COVID-19 patients, and increased ATX serum levels were found in severe COVID-19 patients. ATX serum levels correlated with the corresponding increased serum levels of IL-6 and endothelial damage biomarkers, suggesting an interplay of the ATX/LPA axis with hyperinflammation and the associated vascular dysfunction in COVID-19. Accordingly, dexamethasone (Dex) treatment of mechanically ventilated patients reduced ATX levels, as shown in two independent cohorts, indicating that the therapeutic benefits of Dex include the suppression of ATX. Moreover, large scale analysis of multiple single cell RNA sequencing datasets revealed the expression landscape of ENPP2 in COVID-19 and further suggested a role for ATX in the homeostasis of dendritic cells, which exhibit both numerical and functional deficits in COVID-19. Therefore, ATX has likely a multifunctional role in COVID-19 pathogenesis, suggesting that its pharmacological targeting might represent an additional therapeutic option, both during and after hospitalization.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:22

Enthalten in:

International journal of molecular sciences - 22(2021), 18 vom: 16. Sept.

Sprache:

Englisch

Beteiligte Personen:

Nikitopoulou, Ioanna [VerfasserIn]
Fanidis, Dionysios [VerfasserIn]
Ntatsoulis, Konstantinos [VerfasserIn]
Moulos, Panagiotis [VerfasserIn]
Mpekoulis, George [VerfasserIn]
Evangelidou, Maria [VerfasserIn]
Vassiliou, Alice G [VerfasserIn]
Dimakopoulou, Vasiliki [VerfasserIn]
Jahaj, Edison [VerfasserIn]
Tsipilis, Stamatios [VerfasserIn]
Orfanos, Stylianos E [VerfasserIn]
Dimopoulou, Ioanna [VerfasserIn]
Angelakis, Emmanouil [VerfasserIn]
Akinosoglou, Karolina [VerfasserIn]
Vassilaki, Niki [VerfasserIn]
Tzouvelekis, Argyrios [VerfasserIn]
Kotanidou, Anastasia [VerfasserIn]
Aidinis, Vassilis [VerfasserIn]

Links:

Volltext

Themen:

7S5I7G3JQL
ARDS
Alkylglycerophosphoethanolamine phosphodiesterase
Autotaxin (ATX
Biomarkers
COVID-19
Cytokine storm
Dendritic cells (DCs)
Dexamethasone
EC 3.1.4.-
EC 3.1.4.39
ENPP2)
IL6 protein, human
Interleukin-6
Journal Article
Lysophosphatidic acid (LPA)
Phosphodiesterase Inhibitors
Phosphoric Diester Hydrolases
Pulmonary fibrosis
Vascular dysfunction

Anmerkungen:

Date Completed 05.10.2021

Date Revised 05.10.2021

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms221810006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM331177811