Lecture

Changes in the Proteome of Platelets from Patients with Critical Progression of COVID-19 - Implementation and challenges

  • 10.04.2024 at 10:00 - 10:30
  • ICM Saal 4a
  • Language: English
  • Type: Lecture

Lecture description

Aim of study: Platelets, the smallest cells in human blood, known for their role in primary hemostasis, are also able to interact with pathogens and play a crucial role in the immune response. In severe coronavirus disease 2019 (COVID-19) cases, platelets become overactivated, resulting in the release of granules, exacerbating inflammation and contributing to the cytokine storm. This study aims to further elucidate the role of platelets in COVID-19 progression and to identify predictive biomarkers for disease outcomes.

Methods: Using a sophisticated strategy combining clinical data, mass spectrometry-based proteomics, ELISA, KI and comprehensive bioinformatics evalua􀆟on we analysed highly purified platelets from critically diseased COVID-19 patients with different outcomes (survivors and non-survivors) and age- and sex-matched controls.

Results: Platelets from critically diseased COVID-19 patients exhibited significant changes in the levels of proteins associated with protein folding. In addition, a number of proteins with isomerase activity were found to be more highly abundant in pa􀆟ent samples, apparently exerting an influence on platelet activity via the non-genomic properties of the glucocorticoid receptor (GR) and the nuclear factor κ-light-chain-enhancer of activated B cells (NFκB). Moreover, carbonic anhydrase 1 (CA-1) was found to be a candidate biomarker in platelets, showing a significant increase in COVID-19 patients.
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