Neutrophil Extracellular DNA Traps in Response to Infection or Inflammation, and the Roles of Platelet Interactions

Neutrophils present the host's first line of defense against bacterial infections. These immune effector cells are mobilized rapidly to destroy invading pathogens by (a) reactive oxygen species (ROS)-mediated oxidative bursts and (b) via phagocytosis. In addition, their antimicrobial service is capped via a distinct cell death mechanism, by the release of their own decondensed nuclear DNA, supplemented with a variety of embedded proteins and enzymes. The extracellular DNA meshwork ensnares the pathogenic bacteria and neutralizes them. Such neutrophil extracellular DNA traps (NETs) have the potential to trigger a hemostatic response to pathogenic infections. The web-like chromatin serves as a prothrombotic scaffold for platelet adhesion and activation. What is less obvious is that platelets can also be involved during the initial release of NETs, forming heterotypic interactions with neutrophils and facilitating their responses to pathogens. Together, the platelet and neutrophil responses can effectively localize an infection until it is cleared. However, not all microbial infections are easily cleared. Certain pathogenic organisms may trigger dysregulated platelet-neutrophil interactions, with a potential to subsequently propagate thromboinflammatory processes. These may also include the release of some NETs. Therefore, in order to make rational intervention easier, further elucidation of platelet, neutrophil, and pathogen interactions is still needed.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:25

Enthalten in:

International journal of molecular sciences - 25(2024), 5 vom: 05. März

Sprache:

Englisch

Beteiligte Personen:

Chen, William A [VerfasserIn]
Boskovic, Danilo S [VerfasserIn]

Links:

Volltext

Themen:

9007-49-2
Coagulation
DNA
Immunity
Journal Article
NETs
Neutrophils
Platelets
Review
Thrombosis

Anmerkungen:

Date Completed 14.03.2024

Date Revised 15.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms25053025

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369639901