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Tu L, Thuillet R, Perrot J, Ottaviani M, Ponsardin E, Kolkhof P, Humbert M, Viengchareun S, Lombès M, Guignabert C. Mineralocorticoid Receptor Antagonism by Finerenone Attenuates Established Pulmonary Hypertension in Rats. Hypertension 2022; 79:2262-2273. [PMID: 35979822 DOI: 10.1161/hypertensionaha.122.19207] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND We studied the ability of the nonsteroidal MR (mineralocorticoid receptor) antagonist finerenone to attenuate vascular remodeling and pulmonary hypertension using two complementary preclinical models (the monocrotaline and sugen/hypoxia rat models) of severe pulmonary hypertension. METHODS We first examined the distribution pattern of MR in the lungs of patients with pulmonary arterial hypertension (PAH) and in monocrotaline and sugen/hypoxia rat lungs. Subsequent studies were performed to explore the effect of MR inhibition on proliferation of pulmonary artery smooth muscle cells derived from patients with idiopathic PAH. To validate the functional importance of MR activation in the pulmonary vascular remodeling characteristic of pulmonary hypertension, mice overexpressing MR (hMR+) were studied, and curative treatments with finerenone (1 mg/kg per day by gavage), started 2 weeks after monocrotaline injection or 5 weeks after Sugen injection were realized. RESULTS We demonstrated that MR is overexpressed in experimental and human PAH and that its inhibition following siRNA-mediated MR silencing or finerenone treatment attenuates proliferation of pulmonary artery smooth muscle cells derived from patients with idiopathic PAH. In addition, we obtained evidence that hMR+ mice display increased right ventricular systolic pressure, right ventricular hypertrophy, and remodeling of pulmonary arterioles. Consistent with these observations, curative treatments with finerenone partially reversed established pulmonary hypertension, reducing total pulmonary vascular resistance and vascular remodeling. Finally, we found that continued finerenone treatment decreases inflammatory cell infiltration and vascular cell proliferation in monocrotaline and sugen/hypoxia rat lungs. CONCLUSIONS Finerenone treatment appears to be a potential therapy for PAH worthy of investigation and evaluation for clinical use in conjunction with current PAH treatments.
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Affiliation(s)
- Ly Tu
- INSERM UMR_S 999 « Pulmonary Hypertension: Pathophysiology and Novel Therapies », Hôpital Marie Lannelongue, France (L.T., R.T., M.O., M.H., C.G.).,Université Paris-Saclay, Faculté de Médecine, France (L.T., R.T., M.O., M.H., C.G.)
| | - Raphaël Thuillet
- INSERM UMR_S 999 « Pulmonary Hypertension: Pathophysiology and Novel Therapies », Hôpital Marie Lannelongue, France (L.T., R.T., M.O., M.H., C.G.).,Université Paris-Saclay, Faculté de Médecine, France (L.T., R.T., M.O., M.H., C.G.)
| | - Julie Perrot
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, France (J.P., S.V., M.L.)
| | - Mina Ottaviani
- INSERM UMR_S 999 « Pulmonary Hypertension: Pathophysiology and Novel Therapies », Hôpital Marie Lannelongue, France (L.T., R.T., M.O., M.H., C.G.).,Université Paris-Saclay, Faculté de Médecine, France (L.T., R.T., M.O., M.H., C.G.)
| | - Emy Ponsardin
- Université Paris-Saclay, Inserm, CNRS, Ingénierie et Plateformes au Service de l'Innovation Thérapeutique, France (E.P.)
| | - Peter Kolkhof
- BAYER AG, Heart and Vascular Diseases, Therapeutic Area Cardiovascular Diseases, Research and Early Development, Pharmaceuticals, Wuppertal, Germany (P.K.)
| | - Marc Humbert
- INSERM UMR_S 999 « Pulmonary Hypertension: Pathophysiology and Novel Therapies », Hôpital Marie Lannelongue, France (L.T., R.T., M.O., M.H., C.G.).,Université Paris-Saclay, Faculté de Médecine, France (L.T., R.T., M.O., M.H., C.G.).,Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital Bicêtre, France (M.H.)
| | - Say Viengchareun
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, France (J.P., S.V., M.L.)
| | - Marc Lombès
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, France (J.P., S.V., M.L.)
| | - Christophe Guignabert
- INSERM UMR_S 999 « Pulmonary Hypertension: Pathophysiology and Novel Therapies », Hôpital Marie Lannelongue, France (L.T., R.T., M.O., M.H., C.G.).,Université Paris-Saclay, Faculté de Médecine, France (L.T., R.T., M.O., M.H., C.G.)
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