1
|
Diallo LH, Mariette J, Laugero N, Touriol C, Morfoisse F, Prats AC, Garmy-Susini B, Lacazette E. Specific Circular RNA Signature of Endothelial Cells: Potential Implications in Vascular Pathophysiology. Int J Mol Sci 2024; 25:680. [PMID: 38203852 PMCID: PMC10779679 DOI: 10.3390/ijms25010680] [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: 11/21/2023] [Revised: 12/23/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Circular RNAs (circRNAs) are a recently characterized family of gene transcripts forming a covalently closed loop of single-stranded RNA. The extent of their potential for fine-tuning gene expression is still being discovered. Several studies have implicated certain circular RNAs in pathophysiological processes within vascular endothelial cells and cancer cells independently. However, to date, no comparative study of circular RNA expression in different types of endothelial cells has been performed and analysed through the lens of their central role in vascular physiology and pathology. In this work, we analysed publicly available and original RNA sequencing datasets from arterial, veinous, and lymphatic endothelial cells to identify common and distinct circRNA expression profiles. We identified 4713 distinct circRNAs in the compared endothelial cell types, 95% of which originated from exons. Interestingly, the results show that the expression profile of circular RNAs is much more specific to each cell type than linear RNAs, and therefore appears to be more suitable for distinguishing between them. As a result, we have discovered a specific circRNA signature for each given endothelial cell type. Furthermore, we identified a specific endothelial cell circRNA signature that is composed four circRNAs: circCARD6, circPLXNA2, circCASC15 and circEPHB4. These circular RNAs are produced by genes that are related to endothelial cell migration pathways and cancer progression. More detailed studies of their functions could lead to a better understanding of the mechanisms involved in physiological and pathological (lymph)angiogenesis and might open new ways to tackle tumour spread through the vascular system.
Collapse
Affiliation(s)
- Leïla Halidou Diallo
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| | - Jérôme Mariette
- MIAT, University of Toulouse, INRAE, 31326 Castanet-Tolosan, France;
| | - Nathalie Laugero
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| | - Christian Touriol
- UMR1037 INSERM, University of Toulouse, 2 Avenue Hubert Curien, 31100 Toulouse, France;
| | - Florent Morfoisse
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| | - Anne-Catherine Prats
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| | - Barbara Garmy-Susini
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| | - Eric Lacazette
- U1297-I2MC, INSERM, University of Toulouse, 1 Avenue Jean Poulhes, BP 84225, 31432 Toulouse, France; (L.H.D.); (N.L.); (F.M.); (A.-C.P.); (B.G.-S.)
| |
Collapse
|
2
|
Zodda E, Tura-Ceide O, Mills NL, Tarragó-Celada J, Carini M, Thomson TM, Cascante M. Autonomous metabolic reprogramming and oxidative stress characterize endothelial dysfunction in acute myocardial infarction. eLife 2023; 12:e86260. [PMID: 38014932 PMCID: PMC10871716 DOI: 10.7554/elife.86260] [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: 01/18/2023] [Accepted: 08/01/2023] [Indexed: 11/29/2023] Open
Abstract
Compelling evidence has accumulated on the role of oxidative stress on the endothelial cell (EC) dysfunction in acute coronary syndrome. Unveiling the underlying metabolic determinants has been hampered by the scarcity of appropriate cell models to address cell-autonomous mechanisms of EC dysfunction. We have generated endothelial cells derived from thrombectomy specimens from patients affected with acute myocardial infarction (AMI) and conducted phenotypical and metabolic characterizations. AMI-derived endothelial cells (AMIECs) display impaired growth, migration, and tubulogenesis. Metabolically, AMIECs displayed augmented ROS and glutathione intracellular content, with a diminished glucose consumption coupled to high lactate production. In AMIECs, while PFKFB3 protein levels of were downregulated, PFKFB4 levels were upregulated, suggesting a shunting of glycolysis towards the pentose phosphate pathway, supported by upregulation of G6PD. Furthermore, the glutaminolytic enzyme GLS was upregulated in AMIECs, providing an explanation for the increase in glutathione content. Finally, AMIECs displayed a significantly higher mitochondrial membrane potential than control ECs, which, together with high ROS levels, suggests a coupled mitochondrial activity. We suggest that high mitochondrial proton coupling underlies the high production of ROS, balanced by PPP- and glutaminolysis-driven synthesis of glutathione, as a primary, cell-autonomous abnormality driving EC dysfunction in AMI.
Collapse
Affiliation(s)
- Erika Zodda
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of BarcelonaBarcelonaSpain
- Institute for Molecular Biology of Barcelona, National Research Council (IBMB-CSIC)BarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER-EDH)MadridSpain
| | - Olga Tura-Ceide
- Department of Pulmonary Medicine, Hospital Clínic-Institut d’Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS); University of BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES)MadridSpain
- Department of Pulmonary Medicine, Dr. Josep Trueta University Hospital de Girona, Santa Caterina Hospital de Salt and Girona Biomedical Research Institute (IDIBGI)GironaSpain
| | - Nicholas L Mills
- University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburghUnited Kingdom
| | - Josep Tarragó-Celada
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of BarcelonaBarcelonaSpain
| | - Marina Carini
- Department of Pharmaceutical Sciences, Università degli Studi di MilanoMilanItaly
| | - Timothy M Thomson
- Institute for Molecular Biology of Barcelona, National Research Council (IBMB-CSIC)BarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER-EDH)MadridSpain
- Universidad Peruana Cayetano HerediaLimaPeru
| | - Marta Cascante
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER-EDH)MadridSpain
- Institute of Biomedicine (IBUB), University of BarcelonaBarcelonaSpain
| |
Collapse
|
3
|
da Silva FC, de Araújo BJ, Cordeiro CS, Arruda VM, Faria BQ, Guerra JFDC, Araújo TGD, Fürstenau CR. Endothelial dysfunction due to the inhibition of the synthesis of nitric oxide: Proposal and characterization of an in vitro cellular model. Front Physiol 2022; 13:978378. [PMID: 36467706 PMCID: PMC9714775 DOI: 10.3389/fphys.2022.978378] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 11/02/2022] [Indexed: 08/13/2023] Open
Abstract
The vascular endothelium plays a pivotal role in the maintenance of vascular homeostasis, mediated by vasoactive molecules produced by endothelial cells. The balance between vasoconstrictor and vasodilator biomolecules is what guarantees this equilibrium. Therefore, an increase in the bioavailability of vasoconstrictors along with a reduction in vasodilators may indicate a condition known as endothelial dysfunction. Endothelial dysfunction is marked by an inflammatory process and reduced activity of vasoprotective enzymes, being characterized by some factors like the reduction of the bioavailability of nitric oxide (NO) and increase in the production of reactive oxygen species (ROS), pro-inflammatory and vasoconstrictor molecules. This condition is a predictive marker of several cardiovascular diseases (e.g., atherosclerosis, hypertension, and diabetes). Research is affected by the scarcity of suitable in vitro models that simulate endothelial dysfunction. The goal of this study was to induce an in vitro condition to mimic endothelial dysfunction by inhibiting NO synthesis in cells. Thymus-derived endothelial cells (tEnd.1) were treated with different concentrations of L-NAME (from 1 to 1,000 μM) for different times (12, 24, 48, 72, 96, and 120 h without and with retreatment every 24 h). Cell viability, nitrite concentration, p22phox, NOX2, NOX4, IL-6, and ACE genes expression and lipid peroxidation were evaluated. The results indicate that the treatment with 100 μM L-NAME for 72 h without retreatment reduced NO concentration and NOX4 gene expression while increasing ACE expression, thus mimicking reduced vascular protection and possibly increased vasoconstriction. On the other hand, treatment with 100 μM L-NAME for 96 h with retreatment reduced the concentration of NO and the expression of the p22phox gene while increasing the expression of the IL-6 and ACE genes, mimicking the increase in inflammation and vasoconstriction parameters. Based on these results, we thus propose that both 100 μM L-NAME for 72 h without retreatment and 100 μM L-NAME for 96 h with retreatment may be used as models for in vitro endothelial dysfunction according to the purpose of the study to be conducted.
Collapse
Affiliation(s)
- Fernanda Cardoso da Silva
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Bruna Juber de Araújo
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Carina Santos Cordeiro
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
| | - Vinícius Marques Arruda
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
| | - Bruno Quintanilha Faria
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
| | - Joyce Ferreira Da Costa Guerra
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
| | - Thaise Gonçalves De Araújo
- Animal Cell Culture Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil
| | - Cristina Ribas Fürstenau
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| |
Collapse
|