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Hołda MK, Raźny U, Sordyl M, Góralska J, Kapusta M, Słowińska-Solnica K, Wojtysiak D, Lis G, Solnica B, Kopeć G, Hołda J. Autophagy and ubiquitin-dependent proteolysis processes in left ventricular mass loss in pulmonary arterial hypertension. Sci Rep 2024; 14:15133. [PMID: 38956194 PMCID: PMC11220073 DOI: 10.1038/s41598-024-64950-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/14/2024] [Indexed: 07/04/2024] Open
Abstract
The goal of this study was to evaluate the intensity of autophagy and ubiquitin-dependent proteolysis processes occurring in myocardium of left ventricle (LV) in subsequent stages of pulmonary arterial hypertension (PAH) to determine mechanisms responsible for LV mass loss in a monocrotaline-induced PAH rat model. LV myocardium samples collected from 32 Wistar rats were analyzed in an early PAH group (n = 8), controls time-paired (n = 8), an end-stage PAH group (n = 8), and their controls (n = 8). Samples were subjected to histological analyses with immunofluorescence staining, autophagy assessment by western blotting, and evaluation of ubiquitin-dependent proteolysis in the LV by immunoprecipitation of ubiquitinated proteins. Echocardiographic, hemodynamic, and heart morphometric parameters were assessed regularly throughout the experiment. Considerable morphological and hemodynamic remodeling of the LV was observed over the course of PAH. The end-stage PAH was associated with significantly impaired LV systolic function and a decrease in LV mass. The LC3B-II expression in the LV was significantly higher in the end-stage PAH group compared to the early PAH group (p = 0.040). The measured LC3B-II/LC3B-I ratios in the end-stage PAH group were significantly elevated compared to the controls (p = 0.039). Immunofluorescence staining showed a significant increase in the abundance of LC3 puncta in the end-stage PAH group compared to the matched controls. There were no statistically significant differences in the levels of expression of all ubiquitinated proteins when comparing both PAH groups and matched controls. Autophagy may be considered as the mechanism behind the LV mass loss at the end stage of PAH.
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Affiliation(s)
- Mateusz K Hołda
- HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Jagiellonian University Medical College, Kopernika 12, 31-034, Kraków, Poland.
- Division of Cardiovascular Sciences, The University of Manchester, Manchester, UK.
| | - Urszula Raźny
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Maria Sordyl
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Joanna Góralska
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Maria Kapusta
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | | | - Dorota Wojtysiak
- Department of Animal Genetics, Breeding and Ethology, University of Agriculture in Cracow, Kraków, Poland
| | - Grzegorz Lis
- Department of Histology, Jagiellonian University Medical College, Kraków, Poland
| | - Bogdan Solnica
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Grzegorz Kopeć
- Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, Kraków, Poland
| | - Jakub Hołda
- HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Jagiellonian University Medical College, Kopernika 12, 31-034, Kraków, Poland
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Mirzaee Godarzee M, Mahmud Hussen B, Razmara E, Hakak‐Zargar B, Mohajerani F, Dabiri H, Fatih Rasul M, Ghazimoradi MH, Babashah S, Sadeghizadeh M. Strategies to overcome the side effects of chimeric antigen receptor T cell therapy. Ann N Y Acad Sci 2022; 1510:18-35. [DOI: 10.1111/nyas.14724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/05/2021] [Accepted: 10/22/2021] [Indexed: 11/26/2022]
Affiliation(s)
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy Hawler Medical University Erbil Iraq
| | - Ehsan Razmara
- Australian Regenerative Medicine Institute Monash University, Clayton, Victoria, Australia, 3800
| | | | - Fatemeh Mohajerani
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Hamed Dabiri
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Mohammed Fatih Rasul
- Department of Medical Analysis, Faculty of Sciences Tishk International University Erbil Iraq
| | | | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Majid Sadeghizadeh
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
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