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. 2024 Oct 5;12(10):2267.
doi: 10.3390/biomedicines12102267.

Exercise-Induced Proteomic Profile Changes in Patients with Advanced Heart Failure

Anna Drohomirecka  1 , Joanna Waś  2 , Ewa Sitkiewicz  3 , Bianka Świderska  3 , Anna Lutyńska  2 , Tomasz Rywik  1 , Tomasz Zieliński  1
Affiliations

Exercise-Induced Proteomic Profile Changes in Patients with Advanced Heart Failure

Anna Drohomirecka et al. Biomedicines. .

Abstract

Background/objectives: The pathophysiological background of the processes activated by physical activity in patients with heart failure (HF) is not fully understood. Proteomic studies can help to preliminarily identify new protein markers for unknown or poorly defined physiological processes. We aimed to analyse the changes in the plasma proteomic profile of HF patients after a cardiopulmonary exercise test (CPET) to define pathways involved in the response to exercise.

Methods: The study prospectively enrolled 20 male patients with advanced HF (aged 53.3 ± 8.3 years). Blood samples were taken from the patients before and immediately after the CPET to obtain plasma proteomic profiles. Two-sample t-tests (paired or non-paired) were performed with and without false discovery rate (FDR) correction for multiple testing. Enrichment analysis was performed to associate biological processes and pathways with the study results.

Results: A total of 968 plasma proteins were identified, of which 722 underwent further statistical analysis. Of these, 236 proteins showed differential expression when comparing all plasma samples collected before and after CPT (p < 0.05), and for 86 of these the difference remained statistically significant after FDR correction. Proteins whose expression changed after exercise are mostly involved in immune response and inflammatory processes, coagulation, cell adhesion, regulation of cellular response to stimulus and regulation of programmed cell death. There were no differences in resting proteomics according to HF etiology (ischemic vs. non-ischemic).

Conclusions: Changes in the proteomic profile revealed a complexity of exercise-induced processes in patients with HF, suggesting that few major physiological pathways are involved. Further studies focusing on specific pathways are needed.

Keywords: exercise intolerance; exerkines; heart failure; proteomic profile.

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Conflict of interest statement

The authors declare no conflicts of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.

Figures

Figure 1
Figure 1
Enrichment analysis: molecular function.
Figure 2
Figure 2
Enrichment analysis: biological processes.
Figure 3
Figure 3
Enrichment analysis: cellular component.
Figure 4
Figure 4
Interactive enrichment network.
See this image and copyright information in PMC

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