Beyond basic characterization and omics: Immunomodulatory roles of platelet-derived extracellular vesicles unveiled by functional testing

Mari Palviainen, Johanna Puutio, Rikke Halse Østergaard, Johannes A. Eble, Katariina Maaninka, Umar Butt, Joseph Ndika, Otto K. Kari, Masood Kamali-Moghaddam, Kasper Kjaer-Sorensen, Claus Oxvig, Ana M. Aransay, Juan M. Falcon-Perez, Antonio Federico, Dario Greco, Saara Laitinen, Yuya Hayashi, Pia R.M. Siljander

Tutkimustuotos: ArtikkeliTieteellinenvertaisarvioitu

1 Sitaatiot (Scopus)
5 Lataukset (Pure)

Abstrakti

Renowned for their role in haemostasis and thrombosis, platelets are also increasingly recognized for their contribution in innate immunity, immunothrombosis and inflammatory diseases. Platelets express a wide range of receptors, which allows them to reach a variety of activation endpoints and grants them immunomodulatory functions. Activated platelets release extracellular vesicles (PEVs), whose formation and molecular cargo has been shown to depend on receptor-mediated activation and environmental cues. This study compared the immunomodulatory profiles of PEVs generated via activation of platelets by different receptors, glycoprotein VI, C-type lectin-like receptor 2 and combining all thrombin-collagen receptors. Functional assays in vivo in zebrafish and in vitro in human macrophages highlighted distinct homing and secretory responses triggered by the PEVs. In contrast, omics analyses of protein and miRNA cargo combined with physicochemical particle characterization found only subtle differences between the activated PEV types, which were insufficient to predict their different immunomodulatory functions. In contrast, constitutively released PEVs, formed in the absence of an exogenous activator, displayed a distinct immunomodulatory profile from the receptor-induced PEVs. Our findings underscore that PEVs are tunable through receptor-mediated activation. To truly comprehend their role(s) in mediating platelet functions among immune cells, conducting functional assays is imperative.

AlkuperäiskieliEnglanti
Artikkelie12513
Sivumäärä22
JulkaisuJournal of Extracellular Vesicles
Vuosikerta13
Numero10
DOI - pysyväislinkit
TilaJulkaistu - lokak. 2024
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Julkaisufoorumi-taso

  • Jufo-taso 2

!!ASJC Scopus subject areas

  • Histology
  • Cell Biology

Sormenjälki

Sukella tutkimusaiheisiin 'Beyond basic characterization and omics: Immunomodulatory roles of platelet-derived extracellular vesicles unveiled by functional testing'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä