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Poirier B, Pasquier O, Chenede X, Corbier A, Prigent P, Azam A, Bernard C, Guillotel M, Gillot F, Riva L, Briand V, Ingenito R, Gauzy-Lazo L, Duclos O, Philippo C, Maillere B, Bianchi E, Mallart S, Janiak P, Illiano S. R2R01: A long-acting single-chain peptide agonist of RXFP1 for renal and cardiovascular diseases. Br J Pharmacol 2024; 181:1993-2011. [PMID: 38450758 DOI: 10.1111/bph.16338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND The therapeutic potential of relaxin for heart failure and renal disease in clinical trials is hampered by the short half-life of serelaxin. Optimization of fatty acid-acetylated single-chain peptide analogues of relaxin culminated in the design and synthesis of R2R01, a potent and selective RXFP1 agonist with subcutaneous bioavailability and extended half-life. EXPERIMENTAL APPROACH Cellular assays and pharmacological models of RXFP1 activation were used to validate the potency and selectivity of R2R01. Increased renal blood flow was used as a translational marker of R2R01 activity. Human mastocytes (LAD2 cells) were used to study potential pseudo-allergic reactions and CD4+ T-cells to study immunogenicity. The pharmacokinetics of R2R01 were characterized in rats and minipigs. KEY RESULTS In vitro, R2R01 had comparable potency and efficacy to relaxin as an agonist for human RXFP1. In vivo, subcutaneous administration of R2R01 increased heart rate and renal blood flow in normotensive and hypertensive rat and did not show evidence of tachyphylaxis. R2R01 also increased nipple length in rats, used as a chronic model of RXFP1 engagement. Pharmacokinetic studies showed that R2R01 has a significantly extended terminal half-life. The in vitro assays with LAD2 cells and CD4+ T-cells showed that R2R01 had low potential for pseudo-allergic and immunogenic reactions, respectively. CONCLUSION AND IMPLICATIONS R2R01 is a potent RXFP1 agonist with an extended half-life that increases renal blood flow in various settings including normotensive and hypertensive conditions. The preclinical efficacy and safety data supported clinical development of R2R01 as a potential new therapy for renal and cardiovascular diseases.
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Affiliation(s)
- Bruno Poirier
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | | | - Xavier Chenede
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Alain Corbier
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Philippe Prigent
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | | | - Carine Bernard
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Michel Guillotel
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Florence Gillot
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Laurence Riva
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Veronique Briand
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Raffaele Ingenito
- Peptides and Small Molecules R&D Department, IRBM Spa, Pomezia, Rome, Italy
| | - Laurence Gauzy-Lazo
- Département Médicaments et Technologies pour la Santé, Université de Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - Olivier Duclos
- Département Médicaments et Technologies pour la Santé, Université de Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | | | | | - Elisabetta Bianchi
- Peptides and Small Molecules R&D Department, IRBM Spa, Pomezia, Rome, Italy
| | - Sergio Mallart
- Département Médicaments et Technologies pour la Santé, Université de Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - Philip Janiak
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
| | - Stephane Illiano
- Cardio-Vascular and metabolism, Sanofi R&D, Chilly Mazarin, France
- Investigative Toxicology, Sanofi R&D, Chilly Mazarin, France
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Yang HX, Jiang XL, Zuo RM, Wu YL, Nan JX, Lian LH. Targeting RXFP1 by Ligustilide: A novel therapeutic approach for alcoholic hepatic steatosis. Int Immunopharmacol 2024; 127:111460. [PMID: 38157696 DOI: 10.1016/j.intimp.2023.111460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/21/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Ligustilide (Lig) is the main active ingredient of Umbelliferae Angelicae Sinensis Radix (Chinese Angelica) and Chuanxiong Rhizoma (Sichuan lovase rhizome). Lig possesses various pharmacological properties and could treat obesity by regulating energy metabolism. However, the impact and regulatory mechanism of Lig on alcoholic hepatic steatosis remains unclear. PURPOSE This study aimed to explore the therapeutic effect of Lig on alcoholic hepatic steatosis and its related pharmacological mechanism. RESULTS With chronic and binge ethanol feeding, liver tissue damage and lipid accumulation in mice suffering alcoholic hepatic steatosis were significantly improved after Lig treatment. Lig effectively regulated the expression levels of lipid metabolism-related proteins in alcoholic hepatic steatosis. In addition, Lig reduced RXFP1 expression, inhibited the activation of NLRP3 inflammasome, and blocked NET formation. Lig reduced the infiltration of immune cells to the liver and the further prevented the occurrence of alcohol-stimulated inflammatory response in liver. Lig significantly regulated lipid accumulation in alcohol exposed AML12 cells via modulating PPARα and SREBP1. In MPMs, Lig decreased the expression of RXFP1, inhibited the activation of NLRP3 in macrophages stimulated by LPS/ATP, and slowed down the occurrence of inflammatory response. CONCLUSION Lig sustained lipid metabolism homeostasis in alcoholic hepatic steatosis, through inhibiting the activation of NLRP3 inflammasomes and the formation of NETs, especially targeting RXFP1 in macrophages.
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Affiliation(s)
- Hong-Xu Yang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Xue-Li Jiang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Rong-Mei Zuo
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Yan-Ling Wu
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Ji-Xing Nan
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China.
| | - Li-Hua Lian
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China.
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