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  • Palm, FridaLund University,Lunds universitet,Immunmodulerande effekter av blodplättar vid inflammation och infektion,Forskargrupper vid Lunds universitet,Immunomodulatory effects of platelets during inflammation and infection,Lund University Research Groups (author)

Phenotypic characterization of acoustically enriched extracellular vesicles from pathogen-activated platelets

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • S. Karger,2023
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:mau-61963
  • https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-61963URI
  • https://doi.org/10.1159/000531266DOI
  • https://lup.lub.lu.se/record/de3d78ff-9b26-4242-9249-bdf2537350eeURI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Extracellular vesicles (EVs) are derived from the membrane of platelets and released in the circulation upon activation or injury. Analogous to the parent cell, platelet derived EVs play an important role in hemostasis and immune responses by transfer of bioactive cargo from the parent cells. Platelet activation and release of EVs increases in several pathological inflammatory diseases, such as sepsis. We have previously reported that the M1 protein released from the bacterial pathogen Streptococcus pyogenes directly mediates platelet activation. In this study, EVs were isolated from these pathogen-activated platelets using acoustic trapping and their inflammation phenotype was characterized using quantitative mass spectrometry-based proteomics and cell-based models of inflammation. We determined that M1 protein mediated release of platelet derived EVs that contained the M1 protein. The isolated EVs derived from pathogen-activated platelets contained a similar protein cargo to those from physiologically activated platelets (thrombin), and included platelet membrane proteins, granule proteins and cytoskeletal proteins, coagulation factors and immune mediators. Immunomodulatory cargo, complement proteins and IgG3, were significantly enriched in EVs isolated from M1 protein-stimulated platelets. Acoustically enriched EVs were functionally intact and exhibited proinflammatory effects on addition to blood, including platelet-neutrophil complex formation, neutrophil activation, and cytokine release. Collectively, our findings reveal novel aspects of pathogen-mediated platelet activation during invasive streptococcal infection.

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  • Broman, AxelLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Teknik för hälsa,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Engineering Health,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas(Swepub:lu)ax5383br (author)
  • Marcoux, GenevieveLund University,Lunds universitet,Avdelningen för hematologi och transfusionsmedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Trombocyt immunologi,Forskargrupper vid Lunds universitet,Division of Hematology and Transfusion Medicine,Department of Laboratory Medicine,Faculty of Medicine,Platelet Immunology,Lund University Research Groups(Swepub:lu)ge8726ma (author)
  • Semple, John WLund University,Lunds universitet,Avdelningen för hematologi och transfusionsmedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Trombocyt immunologi,Forskargrupper vid Lunds universitet,Division of Hematology and Transfusion Medicine,Department of Laboratory Medicine,Faculty of Medicine,Platelet Immunology,Lund University Research Groups(Swepub:lu)jo0201se (author)
  • Laurell, Thomas LLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,SEBRA Sepsis and Bacterial Resistance Alliance,Forskargrupper vid Lunds universitet,Acoustofluidics group,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Teknik för hälsa,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Lund University Research Groups,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Engineering Health,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas(Swepub:lu)elma-tla (author)
  • Malmström, JohanLund University,Lunds universitet,Infektionsmedicin,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Infection Medicine Proteomics,Forskargrupper vid Lunds universitet,SEBRA Sepsis and Bacterial Resistance Alliance,epIgG,Masspektrometri,Sektion V,Institutionen för kliniska vetenskaper, Lund,BioMS,LTH profilområde: Teknik för hälsa,LTH profilområden,Lunds Tekniska Högskola,Infection Medicine (BMC),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups,Mass Spectrometry,Section V,Department of Clinical Sciences, Lund,LTH Profile Area: Engineering Health,LTH Profile areas,Faculty of Engineering, LTH(Swepub:lu)medk-jma (author)
  • Shannon, OonaghLund University,Lunds universitet,Infektionsmedicin,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Immunmodulerande effekter av blodplättar vid inflammation och infektion,Forskargrupper vid Lunds universitet,SEBRA Sepsis and Bacterial Resistance Alliance,epIgG,Infection Medicine (BMC),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Immunomodulatory effects of platelets during inflammation and infection,Lund University Research Groups(Swepub:lu)med-osn (author)
  • Immunmodulerande effekter av blodplättar vid inflammation och infektionForskargrupper vid Lunds universitet (creator_code:org_t)

Related titles

  • In:Journal of Innate Immunity: S. Karger15:1, s. 599-6131662-811X1662-8128

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