Dataset Information

Protein modifications in plasma during SARS-CoV-2 infection

ABSTRACT: Although the COVID-19 pandemic has ended, it is important to understand the pathology of severe SARS-CoV-2 infection associated with respiratory failure and high mortality. In this study, a proteomics approach using nano-HPLC-MS/MS (QExactive HF) was used to compare the plasma proteome of COVID-19 survivors (COVID-19; n=10) and deceased individuals (CovDeath; n=10) with that of healthy individuals (Ctr; n=10). The effects of SARS-CoV-2 infection on the alteration of plasma proteins by lipid peroxidation products such as 4-hydroxynonenal (4-HNE), malondialdehyde (MDA) and 15-deoxy-12,14-prostaglandin J2 (15d-PGJ2) were also examined. The results suggest that the development of COVID-19 strongly alters the expression of proteins involved in the regulation of exocytosis and platelet degranulation. These changes were most pronounced in the CovDeath group. In addition, a significant increase in proteins modified with reactive aldehydes was observed in all patients. In the COVID-19 and CovDeath groups, the levels of 4-HNE adducts increased 2- and 3-fold, respectively, whereas MDA adducts increased 7- and 2.5-fold, respectively. Signaling kinases and proinflammatory proteins were particularly affected by these modifications, and the amount of 4-HNE modifications confirmed previous findings on the relevance of 4-HNE in disease pathogenesis and lethal outcome. Protein adducts with 15d-PGJ2 were increased 2.5-fold in COVID-19 patients, including modifications of proteins such as p53 and STAT3, whereas CovDeath showed a decrease of approximately 60% compared with Ctr. It can be assumed that the observed changes in protein expression and modification in COVID-19 are unlikely to be used as prognostic biomarkers because they are also present in the other inflammatory diseases. However, larger studies may prove that the extent and the nature of protein modifications in plasma may be a predictor of the course of SARS-CoV-2 infection.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Cell, Blood Plasma

DISEASE(S): Covid-19

SUBMITTER: Agnieszka Gęgotek

LAB HEAD: Agnieszka Gegotek

PROVIDER: PXD044040 | Pride | 2023-10-24

REPOSITORIES: Pride

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Publications

Short Survey on the Protein Modifications in Plasma during SARS-CoV-2 Infection.

Gęgotek Agnieszka A Zarkovic Neven N Orehovec Biserka B Jaganjac Morana M Sunjic Suzana Borovic SB Skrzydlewska Elżbieta E

International journal of molecular sciences 20230914 18

Although the COVID-19 pandemic has ended, it is important to understand the pathology of severe SARS-CoV-2 infection associated with respiratory failure and high mortality. The plasma proteome, including protein modification by lipid peroxidation products in COVID-19 survivors (COVID-19; <i>n</i> = 10) and deceased individuals (CovDeath; <i>n</i> = 10) was compared in samples collected upon admission to the hospital, when there was no difference in their status, with that of healthy individuals ...[more]

PMID: 37762413

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Project description:Background: Plaque psoriasis is a chronic autoimmune disorder characterized by the development of red scaly plaques. To date psoriasis lesional skin transcriptome has been extensively studied, whereas only few proteomic studies of psoriatic skin are available. Aim: The aim of this study was to compare protein expression patterns of lesional and normally looking skin of psoriasis patients with skin of the healthy volunteers, reveal differentially expressed proteins and identify changes in cell metabolism caused by the disease. Methods: Skin samples of normally looking and lesional skin donated by psoriasis patients (n = 5) and samples of healthy skin donated by volunteers (n = 5) were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). After protein identification and data processing, the set of differentially expressed proteins was subjected to protein ontology analysis to characterize changes in biological processes, cell components and molecular functions in the patients' skin compared to skin of the healthy volunteers. Results: The performed analysis identified 405 and 59 differentially expressed proteins in lesional and normally looking psoriatic skin compared to healthy control. We discovered decreased expression of KNG1, APOE, HRG, THBS1 and PLG in normally looking skin of the patients. Presumably, these changes were needed to protect the epidermis from spontaneous activation of kallikrein-kinin system and delay the following development of inflammatory response. In lesional skin, we identified several large groups of proteins with coordinated expression. Mainly, these proteins were involved in different aspects of protein and RNA metabolism, namely ATP synthesis and consumption; intracellular trafficking of membrane-bound vesicles, pre-RNA processing, translation, chaperoning and degradation in proteasomes/immunoproteasomes. Conclusion: Our findings explain the molecular basis of metabolic changes caused by disease in skin lesions, such as faster cell turnover and higher metabolic rate. They also indicate on downregulation of kallikrein-kinin system in normally looking skin of the patients that would be needed to delay exacerbation of the disease.

Dataset Information

Protein modifications in plasma during SARS-CoV-2 infection

Publications

Short Survey on the Protein Modifications in Plasma during SARS-CoV-2 Infection.

Similar Datasets

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