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Tanke NT, Liu Z, Gore MT, Bougaran P, Linares MB, Marvin A, Sharma A, Oatley M, Yu T, Quigley K, Vest S, Cook JG, Bautch VL. Endothelial Cell Flow-Mediated Quiescence Is Temporally Regulated and Utilizes the Cell Cycle Inhibitor p27. Arterioscler Thromb Vasc Biol 2024; 44:1265-1282. [PMID: 38602102 DOI: 10.1161/atvbaha.124.320671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Endothelial cells regulate their cell cycle as blood vessels remodel and transition to quiescence downstream of blood flow-induced mechanotransduction. Laminar blood flow leads to quiescence, but how flow-mediated quiescence is established and maintained is poorly understood. METHODS Primary human endothelial cells were exposed to laminar flow regimens and gene expression manipulations, and quiescence depth was analyzed via time-to-cell cycle reentry after flow cessation. Mouse and zebrafish endothelial expression patterns were examined via scRNA-seq (single-cell RNA sequencing) analysis, and mutant or morphant fish lacking p27 were analyzed for endothelial cell cycle regulation and in vivo cellular behaviors. RESULTS Arterial flow-exposed endothelial cells had a distinct transcriptome, and they first entered a deep quiescence, then transitioned to shallow quiescence under homeostatic maintenance conditions. In contrast, venous flow-exposed endothelial cells entered deep quiescence early that did not change with homeostasis. The cell cycle inhibitor p27 (CDKN1B) was required to establish endothelial flow-mediated quiescence, and expression levels positively correlated with quiescence depth. p27 loss in vivo led to endothelial cell cycle upregulation and ectopic sprouting, consistent with loss of quiescence. HES1 and ID3, transcriptional repressors of p27 upregulated by arterial flow, were required for quiescence depth changes and the reduced p27 levels associated with shallow quiescence. CONCLUSIONS Endothelial cell flow-mediated quiescence has unique properties and temporal regulation of quiescence depth that depends on the flow stimulus. These findings are consistent with a model whereby flow-mediated endothelial cell quiescence depth is temporally regulated downstream of p27 transcriptional regulation by HES1 and ID3. The findings are important in understanding endothelial cell quiescence misregulation that leads to vascular dysfunction and disease.
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Affiliation(s)
- Natalie T Tanke
- Curriculum in Cell Biology and Physiology (N.T.T., V.L.B.), The University of North Carolina at Chapel Hill
| | - Ziqing Liu
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Michaelanthony T Gore
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Pauline Bougaran
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Mary B Linares
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Allison Marvin
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Arya Sharma
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Morgan Oatley
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Tianji Yu
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Kaitlyn Quigley
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Sarah Vest
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
| | - Jeanette Gowen Cook
- Department of Biochemistry and Biophysics (J.G.C.), The University of North Carolina at Chapel Hill
| | - Victoria L Bautch
- Curriculum in Cell Biology and Physiology (N.T.T., V.L.B.), The University of North Carolina at Chapel Hill
- Department of Biology (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.), The University of North Carolina at Chapel Hill
- McAllister Heart Institute (V.L.B.), The University of North Carolina at Chapel Hill
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Tanke NT, Liu Z, Gore MT, Bougaran P, Linares MB, Marvin A, Sharma A, Oatley M, Yu T, Quigley K, Vest S, Cook JG, Bautch VL. Endothelial cell flow-mediated quiescence is temporally regulated and utilizes the cell cycle inhibitor p27. bioRxiv 2024:2023.06.09.544403. [PMID: 37662222 PMCID: PMC10473767 DOI: 10.1101/2023.06.09.544403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Background Endothelial cells regulate their cell cycle as blood vessels remodel and transition to quiescence downstream of blood flow-induced mechanotransduction. Laminar blood flow leads to quiescence, but how flow-mediated quiescence is established and maintained is poorly understood. Methods Primary human endothelial cells were exposed to laminar flow regimens and gene expression manipulations, and quiescence depth was analyzed via time to cell cycle re-entry after flow cessation. Mouse and zebrafish endothelial expression patterns were examined via scRNA seq analysis, and mutant or morphant fish lacking p27 were analyzed for endothelial cell cycle regulation and in vivo cellular behaviors. Results Arterial flow-exposed endothelial cells had a distinct transcriptome, and they first entered a deep quiescence, then transitioned to shallow quiescence under homeostatic maintenance conditions. In contrast, venous-flow exposed endothelial cells entered deep quiescence early that did not change with homeostasis. The cell cycle inhibitor p27 (CDKN1B) was required to establish endothelial flow-mediated quiescence, and expression levels positively correlated with quiescence depth. p27 loss in vivo led to endothelial cell cycle upregulation and ectopic sprouting, consistent with loss of quiescence. HES1 and ID3, transcriptional repressors of p27 upregulated by arterial flow, were required for quiescence depth changes and the reduced p27 levels associated with shallow quiescence. Conclusions Endothelial cell flow-mediated quiescence has unique properties and temporal regulation of quiescence depth that depends on the flow stimulus. These findings are consistent with a model whereby flow-mediated endothelial cell quiescence depth is temporally regulated downstream of p27 transcriptional regulation by HES1 and ID3. The findings are important in understanding endothelial cell quiescence mis-regulation that leads to vascular dysfunction and disease.
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Affiliation(s)
- Natalie T Tanke
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Ziqing Liu
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Michaelanthony T Gore
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Pauline Bougaran
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Mary B Linares
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Allison Marvin
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Arya Sharma
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Morgan Oatley
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Tianji Yu
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Kaitlyn Quigley
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Sarah Vest
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Jeanette Gowen Cook
- Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Victoria L Bautch
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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Bougaran P, Bats ML, Delobel V, Rubin S, Vaurs J, Couffinhal T, Duplàa C, Dufourcq P. ROR2 (Receptor Tyrosine Kinase-Like Orphan Receptor 2)/Planar Cell Polarity a New Pathway Controlling Endothelial Cell Polarity Under Flow Conditions. Arterioscler Thromb Vasc Biol 2023. [PMID: 37199159 DOI: 10.1161/atvbaha.123.319106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
BACKGROUND Endothelial cells (ECs) are sensitive to physical forces created by blood flow, especially to laminar shear stress. Among the cell responses to laminar flow, EC polarization against the flow direction emerges as a key event, particularly during the development and remodeling of the vascular network. EC adopt an elongated planar cell shape with an asymmetrical distribution of intracellular organelles along the axis of blood flow. This study aimed to investigate the involvement of planar cell polarity via the receptor ROR2 (receptor tyrosine kinase-like orphan receptor 2) in endothelial responses to laminar shear stress. METHODS We generated a genetic mouse model with EC-specific deletion of Ror2, in combination with in vitro approaches involving loss- and gain-of-function experiments. RESULTS During the first 2 weeks of life, the endothelium of the mouse aorta undergoes a rapid remodeling associated with a loss of EC polarization against the flow direction. Notably, we found a correlation between ROR2 expression and endothelial polarization levels. Our findings demonstrate that deletion of Ror2 in murine ECs impaired their polarization during the postnatal development of the aorta. in vitro experiments further validated the essential role of ROR2 in both EC collective polarization and directed migration under laminar flow conditions. Exposure to laminar shear stress triggered the relocalization of ROR2 to cell-cell junctions where it formed a complex with VE-Cadherin and β-catenin, thereby regulating adherens junctions remodeling at the rear and front poles of ECs. Finally, we showed that adherens junctions remodeling and cell polarity induced by ROR2 were dependent on the activation of the small GTPase Cdc42. CONCLUSIONS This study identified ROR2/planar cell polarity pathway as a new mechanism controlling and coordinating collective polarity patterns of EC during shear stress response.
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Affiliation(s)
- Pauline Bougaran
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
| | - Marie-Lise Bats
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
- CHU de Bordeaux, Service de Biochimie clinique, France (M.-L.B.)
| | - Valentin Delobel
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
| | - Sébastien Rubin
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
| | - Juliette Vaurs
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
| | - Thierry Couffinhal
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
- CHU de Bordeaux, Service des Maladies Cardiaques et Vasculaires, Pessac, France (T.C.)
| | - Cécile Duplàa
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
| | - Pascale Dufourcq
- University Bordeaux, INSERM, Biologie des maladies cardiovasculaires, Pessac, France (P.B., M.-L.B., V.D., S.R., J.V., T.C., C.D., P.D.)
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Buglak DB, Bougaran P, Kulikauskas MR, Liu Z, Monaghan-Benson E, Gold AL, Marvin AP, Burciu A, Tanke NT, Oatley M, Ricketts SN, Kinghorn K, Johnson BN, Shiau CE, Rogers S, Guilluy C, Bautch VL. Nuclear SUN1 stabilizes endothelial cell junctions via microtubules to regulate blood vessel formation. eLife 2023; 12:83652. [PMID: 36989130 PMCID: PMC10059686 DOI: 10.7554/elife.83652] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
Endothelial cells line all blood vessels, where they coordinate blood vessel formation and the blood-tissue barrier via regulation of cell-cell junctions. The nucleus also regulates endothelial cell behaviors, but it is unclear how the nucleus contributes to endothelial cell activities at the cell periphery. Here, we show that the nuclear-localized linker of the nucleoskeleton and cytoskeleton (LINC) complex protein SUN1 regulates vascular sprouting and endothelial cell-cell junction morphology and function. Loss of murine endothelial Sun1 impaired blood vessel formation and destabilized junctions, angiogenic sprouts formed but retracted in SUN1-depleted sprouts, and zebrafish vessels lacking Sun1b had aberrant junctions and defective cell-cell connections. At the cellular level, SUN1 stabilized endothelial cell-cell junctions, promoted junction function, and regulated contractility. Mechanistically, SUN1 depletion altered cell behaviors via the cytoskeleton without changing transcriptional profiles. Reduced peripheral microtubule density, fewer junction contacts, and increased catastrophes accompanied SUN1 loss, and microtubule depolymerization phenocopied effects on junctions. Depletion of GEF-H1, a microtubule-regulated Rho activator, or the LINC complex protein nesprin-1 rescued defective junctions of SUN1-depleted endothelial cells. Thus, endothelial SUN1 regulates peripheral cell-cell junctions from the nucleus via LINC complex-based microtubule interactions that affect peripheral microtubule dynamics and Rho-regulated contractility, and this long-range regulation is important for proper blood vessel sprouting and junction integrity.
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Affiliation(s)
- Danielle B Buglak
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Pauline Bougaran
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Molly R Kulikauskas
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Ziqing Liu
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Elizabeth Monaghan-Benson
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State UniversityRaleighUnited States
| | - Ariel L Gold
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Allison P Marvin
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Andrew Burciu
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Natalie T Tanke
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Morgan Oatley
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Shea N Ricketts
- Department of Pathology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Karina Kinghorn
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Bryan N Johnson
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Celia E Shiau
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Stephen Rogers
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Christophe Guilluy
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State UniversityRaleighUnited States
| | - Victoria L Bautch
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
- Department of Biology, The University of North Carolina at Chapel HillChapel HillUnited States
- McAllister Heart Institute, The University of North Carolina at Chapel HillChapel HillUnited States
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Abelanet A, Camoin M, Rubin S, Bougaran P, Delobel V, Pernot M, Forfar I, Guilbeau-Frugier C, Galès C, Bats ML, Renault MA, Dufourcq P, Couffinhal T, Duplàa C. Increased Capillary Permeability in Heart Induces Diastolic Dysfunction Independently of Inflammation, Fibrosis, or Cardiomyocyte Dysfunction. Arterioscler Thromb Vasc Biol 2022; 42:745-763. [PMID: 35510550 DOI: 10.1161/atvbaha.121.317319] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND While endothelial dysfunction is suggested to contribute to heart failure with preserved ejection fraction pathophysiology, understanding the importance of the endothelium alone, in the pathogenesis of diastolic abnormalities has not yet been fully elucidated. Here, we investigated the consequences of specific endothelial dysfunction on cardiac function, independently of any comorbidity or risk factor (diabetes or obesity) and their potential effect on cardiomyocyte. METHODS The ubiquitine ligase Pdzrn3, expressed in endothelial cells (ECs), was shown to destabilize tight junction. A genetic mouse model in which Pdzrn3 is overexpressed in EC (iEC-Pdzrn3) in adults was developed. RESULTS EC-specific Pdzrn3 expression increased cardiac leakage of IgG and fibrinogen blood-born molecules. The induced edema demonstrated features of diastolic dysfunction, with increased end-diastolic pressure, alteration of dP/dt min, increased natriuretic peptides, in addition to limited exercise capacity, without major signs of cardiac fibrosis and inflammation. Electron microscopic images showed edema with disrupted EC-cardiomyocyte interactions. RNA sequencing analysis of gene expression in cardiac EC demonstrated a decrease in genes coding for endothelial extracellular matrix proteins, which could be related to the fragile blood vessel phenotype. Irregularly shaped capillaries with hemorrhages were found in heart sections of iEC-Pdzrn3 mice. We also found that a high-fat diet was not sufficient to provoke diastolic dysfunction; high-fat diet aggravated cardiac inflammation, associated with an altered cardiac metabolic signature in EC-Pdzrn3 mice, reminiscent of heart failure with preserved ejection fraction features. CONCLUSIONS An increase of endothelial permeability is responsible for mediating diastolic dysfunction pathophysiology and for aggravating detrimental effects of a high-fat diet on cardiac inflammation and metabolism.
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Affiliation(s)
- Alice Abelanet
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
| | - Marion Camoin
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Sebastien Rubin
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Pauline Bougaran
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
| | - Valentin Delobel
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
| | - Mathieu Pernot
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Isabelle Forfar
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
| | - Céline Guilbeau-Frugier
- Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, INSERM U1048, I2MC, France (C.G.-F., C.G.)
| | - Céline Galès
- Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, INSERM U1048, I2MC, France (C.G.-F., C.G.)
| | - Marie Lise Bats
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Marie-Ange Renault
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
| | - Pascale Dufourcq
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Thierry Couffinhal
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.).,CHU de Bordeaux, Pessac, France (M.C., S.R., M.P., M.L.B., P.D., T.C.)
| | - Cécile Duplàa
- University of Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, Pessac, France (A.A., M.C., S.R., P.B., V.D., M.P., I.F., M.L.B., M.-A.R., P.D., T.C., C.D.)
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6
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Rubin S, Bougaran P, Martin S, Abelanet A, Delobel V, Pernot M, Jeanningros S, Bats ML, Combe C, Dufourcq P, Debette S, Couffinhal T, Duplàa C. PHACTR-1 (Phosphatase and Actin Regulator 1) Deficiency in Either Endothelial or Smooth Muscle Cells Does Not Predispose Mice to Nonatherosclerotic Arteriopathies in 3 Transgenic Mice. Arterioscler Thromb Vasc Biol 2022; 42:597-609. [PMID: 35387477 DOI: 10.1161/atvbaha.122.317431] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Genome-wide association studies have revealed robust associations of common genetic polymorphisms in an intron of the PHACTR-1 (phosphatase and actin regulator 1) gene (chr6p24), with cervical artery dissection, spontaneous coronary artery dissection, and fibromuscular dysplasia. The aim was to assess its role in the pathogenesis of cervical artery dissection or fibromuscular dysplasia. METHODS Using various tissue-specific Cre-driver mouse lines, Phactr1 was deleted either in endothelial cells using 2 tissue-specific Cre-driver (PDGFB [platelet-derived growth factor B]-CreERT2 mice and Tie2 [tyrosine kinase with immunoglobulin and EGF homology domains]-Cre) and smooth muscle cells (smooth muscle actin-CreERT2) with a third tissue-specific Cre-driver. RESULTS To test the efficacy of the Phactr1 deletion after cre-induction, we confirmed first, a decrease in Phactr1 transcription and Phactr1 expression in endothelial cell and smooth muscle cell isolated from Phactr1iPDGFB and Phactr1iSMA mice. Irrespective to the tissue or the duration of the deletion, mice did not spontaneously display pathological phenotype or vascular impairment: mouse survival, growth, blood pressure, large vessel morphology, or actin organization were not different in knockout mice than their comparatives littermates. Challenging vascular function and repair either by angiotensin II-induced hypertension or limb ischemia did not lead to vascular morphology or function impairment in Phactr1-deleted mice. Similarly, there were no more consequences of Phactr1 deletion during embryogenesis in endothelial cells. CONCLUSIONS Loss of PHACTR-1 function in the cells involved in vascular physiology does not appear to induce a pathological vascular phenotype. The in vivo effect of the intronic variation described in genome-wide association studies is unlikely to involve downregulation in PHACTR-1 expression.
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Affiliation(s)
- Sébastien Rubin
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.).,Service de Néphrologie, Transplantation, Dialyse et Aphérèses (S.R., C.C.), Hôpital Pellegrin, CHU de Bordeaux, France
| | - Pauline Bougaran
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Soizic Martin
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Alice Abelanet
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Valentin Delobel
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Mathieu Pernot
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Sylvie Jeanningros
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Marie-Lise Bats
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.).,Service de Biochimie (M.-L.B.), Hôpital Pellegrin, CHU de Bordeaux, France
| | - Christian Combe
- Service de Néphrologie, Transplantation, Dialyse et Aphérèses (S.R., C.C.), Hôpital Pellegrin, CHU de Bordeaux, France.,University of Bordeaux, Unité INSERM 1026, Université de Bordeaux, France (C.C.)
| | - Pascale Dufourcq
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
| | - Stéphanie Debette
- University of Bordeaux, INSERM, Bordeaux Population Health Center, UMR1219, France (S.D.).,Bordeaux University Hospital, Department of Neurology, Institute of Neurodegenerative Diseases, France (S.D.)
| | - Thierry Couffinhal
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.).,Service des Maladies Cardiaques et Vasculaires, Hôpital Haut-Léveque CHU de Bordeaux, Pessac, France (T.C.)
| | - Cécile Duplàa
- University of Bordeaux, INSERM, Biologie des Maladies Cardiovasculaires, U1034, Pessac, France (S.R., P.B., S.M., A.A., V.D., M.P., S.J., M.-L.B., P.D., T.C., C.D.)
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7
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Gueniot F, Rubin S, Bougaran P, Abelanet A, Morel JL, Bontempi B, Proust C, Dufourcq P, Couffinhal T, Duplàa C. Targeting Pdzrn3 maintains adult blood-brain barrier and central nervous system homeostasis. J Cereb Blood Flow Metab 2022; 42:613-629. [PMID: 34644209 PMCID: PMC9051145 DOI: 10.1177/0271678x211048981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Blood brain barrier (BBB) disruption is a critical component of the pathophysiology of cognitive impairment of vascular etiology (VCI) and associated with Alzheimer's disease (AD). The Wnt pathway plays a crucial role in BBB maintenance, but there is limited data on its role in cognitive pathologies. The E3 ubiquitin ligase PDZRN3 is a regulator of the Wnt pathway. In a murine model of VCI, overexpressing Pdzrn3 in endothelial cell (EC) exacerbated BBB hyperpermeability and accelerated cognitive decline. We extended these observations, in both VCI and AD models, showing that EC-specific depletion of Pdzrn3, reinforced the BBB, with a decrease in vascular permeability and a subsequent spare in cognitive decline. We found that in cerebral vessels, Pdzrn3 depletion protects against AD-induced Wnt target gene alterations and enhances endothelial tight junctional proteins. Our results provide evidence that Wnt signaling could be a molecular link regulating BBB integrity and cognitive decline under VCI and AD pathologies.
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Affiliation(s)
- Florian Gueniot
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Sebastien Rubin
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Pauline Bougaran
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Alice Abelanet
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | | | | | - Carole Proust
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Pascale Dufourcq
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service de Biochimie clinique, CHU de Bordeaux, Bordeaux, France
| | - Thierry Couffinhal
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service des Maladies cardiaques et vasculaires, CHU de Bordeaux, Bordeaux, France
| | - Cecile Duplàa
- Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
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8
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Rubin S, Bougaran P, Martin S, Abelanet A, Delobel V, Jeannigros S, Bats M, Dufourcq P, Couffinhal T, Duplàa C. No direct involvement of Phactr-1 in non-atherosclerotic arteriopathies: Results from 3 different Phactr-1 transgenic knockout mice. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Rubin S, Abelanet A, Bougaran P, Jeanningros S, Pascale D, Duplaa C, Couffinhal T. Rôle biologique de PHACTR-1, gène décrit comme impliqué dans la pathogénèse des maladies vasculaires : une étude in-vivo. Nephrol Ther 2020. [DOI: 10.1016/j.nephro.2020.07.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Abstract
Blood flow produces mechanical frictional forces, parallel to the blood flow exerted on the endothelial wall of the vessel, the so-called wall shear stress (WSS). WSS sensing is associated with several vascular pathologies, but it is first a physiological phenomenon. Endothelial cell sensitivity to WSS is involved in several developmental and physiological vascular processes such as angiogenesis and vascular morphogenesis, vascular remodeling, and vascular tone. Local conditions of blood flow determine the characteristics of WSS, i.e., intensity, direction, pulsatility, sensed by the endothelial cells that, through their effect of the vascular network, impact WSS. All these processes generate a local-global retroactive loop that determines the ability of the vascular system to ensure the perfusion of the tissues. In order to account for the physiological role of WSS, the so-called shear stress set point theory has been proposed, according to which WSS sensing acts locally on vessel remodeling so that WSS is maintained close to a set point value, with local and distant effects of vascular blood flow. The aim of this article is (1) to review the existing literature on WSS sensing involvement on the behavior of endothelial cells and its short-term (vasoreactivity) and long-term (vascular morphogenesis and remodeling) effects on vascular functioning in physiological condition; (2) to present the various hypotheses about WSS sensors and analyze the conceptual background of these representations, in particular the concept of tensional prestress or biotensegrity; and (3) to analyze the relevance, explanatory value, and limitations of the WSS set point theory, that should be viewed as dynamical, and not algorithmic, processes, acting in a self-organized way. We conclude that this dynamic set point theory and the biotensegrity concept provide a relevant explanatory framework to analyze the physiological mechanisms of WSS sensing and their possible shift toward pathological situations.
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Affiliation(s)
- Etienne Roux
- Inserm, UMR 1034, Biology of Cardiovascular Diseases, University of Bordeaux, Bordeaux, France.,UMR 8560 IHPST - Institut d'Histoire et de Philosophie des Sciences et des Techniques, CNRS, Université Paris 1 Panthéon-Sorbonne, Paris, France
| | - Pauline Bougaran
- Inserm, UMR 1034, Biology of Cardiovascular Diseases, University of Bordeaux, Bordeaux, France
| | - Pascale Dufourcq
- Inserm, UMR 1034, Biology of Cardiovascular Diseases, University of Bordeaux, Bordeaux, France
| | - Thierry Couffinhal
- Inserm, UMR 1034, Biology of Cardiovascular Diseases, University of Bordeaux, Bordeaux, France
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11
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Bats ML, Bougaran P, Peghaire C, Gueniot F, Abelanet A, Chan H, Séguy C, Jeanningros S, Jaspard-Vinassa B, Couffinhal T, Duplàa C, Dufourcq P. Therapies targeting Frizzled-7/β-catenin pathway prevent the development of pathological angiogenesis in an ischemic retinopathy model. FASEB J 2019; 34:1288-1303. [PMID: 31914666 DOI: 10.1096/fj.201901886r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/28/2019] [Accepted: 11/11/2019] [Indexed: 12/24/2022]
Abstract
Retinopathies remain major causes of visual impairment in diabetic patients and premature infants. Introduction of anti-angiogenic drugs targeting vascular endothelial growth factor (VEGF) has transformed therapy for these proliferative retinopathies. However, limitations associated with anti-VEGF medications require to unravel new pathways of vessel growth to identify potential drug targets. Here, we investigated the role of Wnt/Frizzled-7 (Fzd7) pathway in a mouse model of oxygen-induced retinopathy (OIR). Using transgenic mice, which enabled endothelium-specific and time-specific Fzd7 deletion, we demonstrated that Fzd7 controls both vaso-obliteration and neovascular phases (NV). Deletion of Fzd7 at P12, after the ischemic phase of OIR, prevented formation of aberrant neovessels into the vitreous by suppressing proliferation of endothelial cells (EC) in tufts. Next we validated in vitro two Frd7 blocking strategies: a monoclonal antibody (mAbFzd7) against Fzd7 and a soluble Fzd7 receptor (CRD). In vivo a single intravitreal microinjection of mAbFzd7 or CRD significantly attenuated retinal neovascularization (NV) in mice with OIR. Molecular analysis revealed that Fzd7 may act through the activation of Wnt/β-catenin and Jagged1 expression to control EC proliferation in extra-retinal neovessels. We identified Fzd7/β-catenin signaling as new regulator of pathological retinal NV. Fzd7 appears to be a potent pharmacological target to prevent or treat aberrant angiogenesis of ischemic retinopathies.
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Affiliation(s)
- Marie-Lise Bats
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service de Biochimie clinique, CHU de Bordeaux, Bordeaux, France
| | - Pauline Bougaran
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Claire Peghaire
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,NHLI-Vascular Science, Imperial College London, London, UK
| | - Florian Gueniot
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Alice Abelanet
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Hélène Chan
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France
| | - Camille Séguy
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France
| | | | - Béatrice Jaspard-Vinassa
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Thierry Couffinhal
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service des Maladies cardiaques et vasculaires, CHU de Bordeaux, Bordeaux, France
| | - Cécile Duplàa
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Pascale Dufourcq
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
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12
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Bougaran P, Bats M, Jeanningros S, Couffinhal T, Duplàa C, Dufourcq P. ROR2 involvement in endothelial cells responses to flow. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2019.02.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Dupas J, Feray A, Goanvec C, Guernec A, Samson N, Bougaran P, Guerrero F, Mansourati J. Metabolic Syndrome and Hypertension Resulting from Fructose Enriched Diet in Wistar Rats. Biomed Res Int 2017; 2017:2494067. [PMID: 28497040 PMCID: PMC5405603 DOI: 10.1155/2017/2494067] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/19/2017] [Indexed: 01/03/2023]
Abstract
Increased sugar consumption, especially fructose, is strongly related to the development of type 2 diabetes (T2D) and metabolic syndrome. The aim of this study was to evaluate long term effects of fructose supplementation on Wistar rats. Three-week-old male rats were randomly divided into 2 groups: control (C; n = 14) and fructose fed (FF; n = 18), with a fructose enriched drink (20-25% w/v fructose in water) for 21 weeks. Systolic blood pressure, fasting glycemia, and bodyweight were regularly measured. Glucose tolerance was evaluated three times using an oral glucose tolerance test. Insulin levels were measured concomitantly and insulin resistance markers were evaluated (HOMA 2-IR, Insulin Sensitivity Index for glycemia (ISI-gly)). Lipids profile was evaluated on plasma. This fructose supplementation resulted in the early induction of hypertension without renal failure (stable theoretical creatinine clearance) and in the progressive development of fasting hyperglycemia and insulin resistance (higher HOMA 2-IR, lower ISI-gly) without modification of glucose tolerance. FF rats presented dyslipidemia (higher plasma triglycerides) and early sign of liver malfunction (higher liver weight). Although abdominal fat weight was increased in FF rats, no significant overweight was found. In Wistar rats, 21 weeks of fructose supplementation induced a metabolic syndrome (hypertension, insulin resistance, and dyslipidemia) but not T2D.
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Affiliation(s)
- Julie Dupas
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - Annie Feray
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- 2UFR Sciences du Sport et de l'Education, 20 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - Christelle Goanvec
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- 3UFR Sciences et Techniques, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- *Christelle Goanvec:
| | - Anthony Guernec
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- 2UFR Sciences du Sport et de l'Education, 20 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - Nolwenn Samson
- 4Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université de Laval, 2725 chemin Ste-Foy, Québec, QC, Canada G1V 4G5
| | - Pauline Bougaran
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - François Guerrero
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- 2UFR Sciences du Sport et de l'Education, 20 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - Jacques Mansourati
- 1EA 4324-Optimisation des Régulations Physiologiques, Institut Brestois Santé Agro Matières, Université de Bretagne Occidentale, 6 avenue Victor Le Gorgeu, 29238 Brest Cedex 3, France
- 5Département de Cardiologie, Centre Hospitalo-Universitaire de Brest, boulevard Tanguy Prigent, 29200 Brest, France
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