1
|
Aragón-Herrera A, Feijóo-Bandín S, Vázquez-Abuín X, Anido-Varela L, Moraña-Fernández S, Bravo SB, Tarazón E, Roselló-Lletí E, Portolés M, García-Seara J, Seijas J, Rodríguez-Penas D, Bani D, Gualillo O, González-Juanatey JR, Lago F. Human recombinant relaxin-2 (serelaxin) regulates the proteome, lipidome, lipid metabolism and inflammatory profile of rat visceral adipose tissue. Biochem Pharmacol 2024; 223:116157. [PMID: 38518995 DOI: 10.1016/j.bcp.2024.116157] [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: 01/14/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Recombinant human relaxin-2 (serelaxin) has been widely proven as a novel drug with myriad effects at different cardiovascular levels, which support its potential therapeutic efficacy in several cardiovascular diseases (CVD). Considering these effects, together with the influence of relaxin-2 on adipocyte physiology and adipokine secretion, and the connection between visceral adipose tissue (VAT) dysfunction and the development of CVD, we could hypothesize that relaxin-2 may regulate VAT metabolism. Our objective was to evaluate the impact of a 2-week serelaxin treatment on the proteome and lipidome of VAT from Sprague-Dawley rats. We found that serelaxin increased 1 polyunsaturated fatty acid and 6 lysophosphatidylcholines and decreased 4 triglycerides in VAT employing ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) based platforms, and that regulates 47 phosphoproteins using SWATH/MS analysis. Through RT-PCR, we found that serelaxin treatment also caused an effect on VAT lipolysis through an increase in the mRNA expression of hormone-sensitive lipase (HSL) and a decrease in the expression of adipose triglyceride lipase (ATGL), together with a reduction in the VAT expression of the fatty acid transporter cluster of differentiation 36 (Cd36). Serelaxin also caused an anti-inflammatory effect in VAT by the decrease in the mRNA expression of tumor necrosis factor α (TNFα), interleukin-1β (IL-1β), chemerin, and its receptor. In conclusion, our results highlight the regulatory role of serelaxin in the VAT proteome and lipidome, lipolytic function, and inflammatory profile, suggesting the implication of several mechanisms supporting the potential benefit of serelaxin for the prevention of obesity and metabolic disorders.
Collapse
Affiliation(s)
- Alana Aragón-Herrera
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain.
| | - Sandra Feijóo-Bandín
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Xocas Vázquez-Abuín
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Laura Anido-Varela
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Sandra Moraña-Fernández
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Cardiology Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade de Santiago de Compostela, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Susana B Bravo
- Proteomics Unit, Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | - Estefanía Tarazón
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Cardiocirculatory Unit, Health Research Institute of La Fe University Hospital, Valencia, Spain
| | - Esther Roselló-Lletí
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Cardiocirculatory Unit, Health Research Institute of La Fe University Hospital, Valencia, Spain
| | - Manuel Portolés
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Cardiocirculatory Unit, Health Research Institute of La Fe University Hospital, Valencia, Spain
| | - Javier García-Seara
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Arrhytmia Unit, Cardiology Department, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Department of Psychiatry, Radiology, Public Health, Nursing and Medicine, IDIS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - José Seijas
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Cardiology Department Clinical Trial Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Diego Rodríguez-Penas
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Cardiology Department Clinical Trial Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Daniele Bani
- Research Unit of Histology & Embryology, Department of Experimental & Clinical Medicine, University of Florence, Florence, Italy
| | - Oreste Gualillo
- Laboratory of Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - José Ramón González-Juanatey
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain; Department of Psychiatry, Radiology, Public Health, Nursing and Medicine, IDIS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Cardiology Department, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Francisca Lago
- Cellular and Molecular Cardiology Research Unit, IDIS, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| |
Collapse
|
2
|
Feijóo-Bandín S, Aragón-Herrera A, Rodríguez-Penas D, Portolés M, Roselló-Lletí E, Rivera M, González-Juanatey JR, Lago F. Relaxin-2 in Cardiometabolic Diseases: Mechanisms of Action and Future Perspectives. Front Physiol 2017; 8:599. [PMID: 28868039 PMCID: PMC5563388 DOI: 10.3389/fphys.2017.00599] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 08/03/2017] [Indexed: 12/13/2022] Open
Abstract
Despite the great effort of the medical community during the last decades, cardiovascular diseases remain the leading cause of death worldwide, increasing their prevalence every year mainly due to our new way of life. In the last years, the study of new hormones implicated in the regulation of energy metabolism and inflammation has raised a great interest among the scientific community regarding their implications in the development of cardiometabolic diseases. In this review, we will summarize the main actions of relaxin, a pleiotropic hormone that was previously suggested to improve acute heart failure and that participates in both metabolism and inflammation regulation at cardiovascular level, and will discuss its potential as future therapeutic target to prevent/reduce cardiovascular diseases.
Collapse
Affiliation(s)
- Sandra Feijóo-Bandín
- Cellular and Molecular Cardiology Research Unit, Institute of Biomedical Research and University Clinical HospitalSantiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
| | - Alana Aragón-Herrera
- Cellular and Molecular Cardiology Research Unit, Institute of Biomedical Research and University Clinical HospitalSantiago de Compostela, Spain
| | - Diego Rodríguez-Penas
- Cellular and Molecular Cardiology Research Unit, Institute of Biomedical Research and University Clinical HospitalSantiago de Compostela, Spain
| | - Manuel Portolés
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
- Cardiocirculatory Unit, Health Research Institute of La Fe University HospitalValencia, Spain
| | - Esther Roselló-Lletí
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
- Cardiocirculatory Unit, Health Research Institute of La Fe University HospitalValencia, Spain
| | - Miguel Rivera
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
- Cardiocirculatory Unit, Health Research Institute of La Fe University HospitalValencia, Spain
| | - José R. González-Juanatey
- Cellular and Molecular Cardiology Research Unit, Institute of Biomedical Research and University Clinical HospitalSantiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
| | - Francisca Lago
- Cellular and Molecular Cardiology Research Unit, Institute of Biomedical Research and University Clinical HospitalSantiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades CardiovascularesMadrid, Spain
| |
Collapse
|
5
|
Parry LJ, Vodstrcil LA, Madden A, Amir SH, Baldwin K, Wlodek ME, Nicholas KR. Normal mammary gland growth and lactation capacity in pregnant relaxin-deficient mice. Reprod Fertil Dev 2009; 21:549-60. [DOI: 10.1071/rd08243] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2008] [Accepted: 01/26/2009] [Indexed: 11/23/2022] Open
Abstract
Pups born to mice with a targeted deletion of relaxin or its receptor (Rxfp1) die within 24 h postpartum. This has been attributed, in part, to abnormal mammary gland development in relaxin-mutant mice (Rln–/–). However, mammary development is normal in relaxin receptor-mutant (Rxfp1–/–) mice. The present study aimed to verify the mammary phenotypes in late pregnant and early lactating Rln–/– mice and to test the hypothesis that relaxin is involved in milk protein synthesis. Comparisons between late pregnant and early lactating wildtype (Rln+/+) and Rln–/– mice showed no differences in lobuloalveolar structure or ductal branching in the mammary gland. Mammary explants from Rln–/– mice also expressed β-casein and α-lactalbumin in response to lactogenic hormones at a similar level to Rln+/+ mice, implying normal milk protein synthesis. Pregnant Rln–/– mice infused with relaxin for 6 days gave birth to live pups without difficulty, and 96% of pups survived beyond 7 days. This is in contrast with the 100% pup mortality in saline-treated Rln–/– mice or 3-day relaxin-treated Rln–/– mice. Pups born to relaxin-treated Rln–/– dams weighed significantly less than Rln+/+ pups but had similar growth rates as their wildtype counterparts. In summary, relaxin is not critical for mammary gland development or β-casein and α-lactalbumin expression in late pregnant mice. In addition, Rln–/– dams did not need to be treated with relaxin postpartum for the pups to survive, suggesting that relaxin has no role in the maintenance of lactation in mice.
Collapse
|
6
|
Dschietzig T, Bartsch C, Baumann G, Stangl K. Relaxin—a pleiotropic hormone and its emerging role for experimental and clinical therapeutics. Pharmacol Ther 2006; 112:38-56. [PMID: 16647137 DOI: 10.1016/j.pharmthera.2006.03.004] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2006] [Accepted: 03/08/2006] [Indexed: 01/30/2023]
Abstract
The insulin-related peptide hormone relaxin (Rlx) is known as pregnancy hormone for decades. In the 1980s, researchers began to recognize the highly intriguing fact that Rlx plays a role in a multitude of physiological processes far beyond pregnancy and reproduction. So, Rlx's contribution to the regulation of vasotonus, plasma osmolality, angiogenesis, collagen turnover, and renal function has been established. In addition, the peptide has been demonstrated to represent a mediator of cardiovascular pathology. The ongoing efforts to identify Rlx receptors eventually precipitated the discovery of the G protein-coupled receptors (GPCR) LGR7 and LGR8 as membrane receptors for human Rlx-2 in 2002. This review will summarize the current state of insight into this rapidly evolving field, which has further been expanded by the discovery of GPCR135 and GPCR142 as receptors for Rlx-3. In addition, Rlx has also been shown to activate the human glucocorticoid receptor (GR). There is evidence from Rlx and Rlx receptor knockouts suggesting that LGR7 is the only relevant receptor for mouse Rlx-1 (corresponding to human Rlx-2) in vivo and that insulin-like peptide (INSL)-3 represents the physiological ligand for LGR8. Regarding Rlx signal transduction, the cyclic adenosine monophosphate (cAMP) and nitric oxide (NO) pathways will be characterized as major cascades. Investigation of downstream signaling remains an important field for future research. Finally, the current state of therapeutical strategies using Rlx in animal models as well as in humans is summarized.
Collapse
Affiliation(s)
- Thomas Dschietzig
- Medizinische Klinik m. S. Kardiologie und Angiologie, Charité-Universitätsmedizin Berlin, Campus Mitte, Schumannstr. 20/21, 10117 Berlin, Germany.
| | | | | | | |
Collapse
|
7
|
Abstract
1. Relaxin is a peptide hormone of about 6000 Da belonging to the insulin family. Like insulin, relaxin is composed by two disulfide-linked chains, termed the A and B chains, the B chain bearing the receptor interaction site. 2. Relaxin is produced primarily by the corpus luteum, in both pregnant and nonpregnant females. It attains the highest plasma levels during pregnancy. In this condition, relaxin is also produced by the decidua and placenta. In males, relaxin is synthesized in the prostate and released in the seminal fluid. An additional source of relaxin has recently been identified in the heart atria. 3. Relaxin has a broad range of biologic activities, some of which have been known for a long time. These latter ones include: (a) the induction of collagen remodeling and consequent softening of the tissues of the birth canal in view of delivery; (b) the inhibition of uterine contractile activity; (c) the stimulation of growth and differentiation of the mammary gland. 4. In more recent years, novel sites of relaxin action have been recognized. In particular, it has been shown that relaxin: (a) regulates growth and differentiation of breast cancer cells in culture; (b) promotes dilation of blood vessels in several organs and tissues, including the uterus, the mammary gland, the lung and the heart; (c) has a chronotropic action on the heart; (d) inhibits the release of histamine by mast cells, thus being able to counteract experimental allergic asthma; (d) depresses aggregation of platelets and their release by megakaryocytes; (e) influences the secretion of hormones by the pituitary gland; and (f) contributes to the regulation of fluid balance. 5. Concerning the mechanisms of action of relaxin, stimulation of nitric oxide generation, with consequent rise in intracellular cyclic GMP levels, and stimulation of cyclic AMP production have been demonstrated to occur in the target cells and organs. 6. It may be expected that the next decade will provide answers about the utility of relaxin, in terms of insight into the actual physiologic functions of relaxin in the animal kingdom and especially in man, in view of possible therapeutic use of relaxin or relaxin-derived drugs in human disease, especially considering that human recombinant relaxin is now available for clinical experimentation.
Collapse
Affiliation(s)
- D Bani
- Departimento di Anatomia Umana e Istologia, Sezione di Istologia, Firenze, Italy
| |
Collapse
|