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Tao ZS, Shen CL. Guanylate cyclase promotes osseointegration by inhibiting oxidative stress and inflammation in aged rats with iron overload. Bone Joint Res 2024; 13:427-440. [PMID: 39216851 PMCID: PMC11365736 DOI: 10.1302/2046-3758.139.bjr-2023-0396.r3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
Abstract
Aims This study intended to investigate the effect of vericiguat (VIT) on titanium rod osseointegration in aged rats with iron overload, and also explore the role of VIT in osteoblast and osteoclast differentiation. Methods In this study, 60 rats were included in a titanium rod implantation model and underwent subsequent guanylate cyclase treatment. Imaging, histology, and biomechanics were used to evaluate the osseointegration of rats in each group. First, the impact of VIT on bone integration in aged rats with iron overload was investigated. Subsequently, VIT was employed to modulate the differentiation of MC3T3-E1 cells and RAW264.7 cells under conditions of iron overload. Results Utilizing an OVX rat model, we observed significant alterations in bone mass and osseointegration due to VIT administration in aged rats with iron overload. The observed effects were concomitant with reductions in bone metabolism, oxidative stress, and inflammation. To elucidate whether these effects are associated with osteoclast and osteoblast activity, we conducted in vitro experiments using MC3T3-E1 cells and RAW264.7 cells. Our findings indicate that iron accumulation suppressed the activity of MC3T3-E1 while enhancing RAW264.7 function. Furthermore, iron overload significantly decreased oxidative stress levels; however, these detrimental effects can be mitigated by VIT treatment. Conclusion Collectively, our data provide compelling evidence that VIT has the potential to reverse the deleterious consequences of iron overload on osseointegration and bone mass during ageing.
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Affiliation(s)
- Zhou-Shan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
- Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wuhu, China
| | - Cai-Liang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Spadafora L, Bernardi M, Sarto G, Simeone B, Forte M, D'Ambrosio L, Betti M, D'Amico A, Cammisotto V, Carnevale R, Bartimoccia S, Sabouret P, Zoccai GB, Frati G, Valenti V, Sciarretta S, Rocco E. Towards the Fifth Pillar for the Treatment of Heart Failure with Reduced Ejection Fraction: Vericiguat in Older and Complex Patients. Am J Cardiovasc Drugs 2024; 24:469-479. [PMID: 38856965 PMCID: PMC11233322 DOI: 10.1007/s40256-024-00652-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/08/2024] [Indexed: 06/11/2024]
Abstract
Heart failure with reduced ejection fraction (HFrEF) represents an emerging epidemic, particularly affecting frail, older, and multimorbid patients. Current therapy for the management of HFrEF includes four different classes of disease-modifying drugs, commonly referred to as 'four pillars', which target the neurohormonal system that is overactivated in HF and contributes to its progression. These classes of drugs include β-blockers, inhibitors of the renin-angiotensin-aldosterone system, mineralocorticoid receptor antagonists, and sodium-glucose co-transporter-2 (SGLT2) inhibitors. Unfortunately, these agents cannot be administered as frequently as needed to older patients because of poor tolerability and comorbidities. In addition, although these drugs have dramatically increased the survival expectations of patients with HF, their residual risk of rehospitalization and death at 5 years remains considerable. Vericiguat, a soluble guanylate cyclase (sGC) stimulator, was reported to exert beneficial effects in patients with worsening HF, including older subjects, reducing the rate of both hospitalizations and deaths, with limited adverse effects and drug interaction. In this narrative review, we present the current state of art on vericiguat, with a particular focus on elderly and frail patients.
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Affiliation(s)
- Luigi Spadafora
- Department of Clinical Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Marco Bernardi
- Department of Clinical Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Gianmarco Sarto
- Cardiology Division, ICOT Istituto "Marco Pasquali" University Hospital, Latina, Italy
| | - Beatrice Simeone
- Cardiology Division, ICOT Istituto "Marco Pasquali" University Hospital, Latina, Italy
| | | | - Luca D'Ambrosio
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Matteo Betti
- Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Milan, Italy
| | - Alessandra D'Amico
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Vittoria Cammisotto
- Department of Clinical Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Roberto Carnevale
- IRCCS Neuromed, Pozzilli, Italy
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Simona Bartimoccia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Pierre Sabouret
- Heart Institute and Action Group, Pitié-Salpétrière, Sorbonne University, Paris, France
- National College of French Cardiologists, Paris, France
| | - Giuseppe Biondi Zoccai
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
- Cardiology Unit, Santa Maria Goretti Hospital, Latina, Italy
| | - Giacomo Frati
- IRCCS Neuromed, Pozzilli, Italy
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Valentina Valenti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Sebastiano Sciarretta
- IRCCS Neuromed, Pozzilli, Italy
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
| | - Erica Rocco
- Cardiology Division, ICOT Istituto "Marco Pasquali" University Hospital, Latina, Italy
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Tao ZS, Shen CL. Favorable osteogenic activity of vericiguat doped in β-tricalcium phosphate: In vitro and in vivo studies. J Biomater Appl 2024; 38:1073-1086. [PMID: 38569649 DOI: 10.1177/08853282241245543] [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] [Indexed: 04/05/2024]
Abstract
Recently, more and more studies have shown that guanylate cyclase, an enzyme that synthesizes cyclic guanosine monophosphate (cGMP), plays an important role in bone metabolism. Vericiguat (VIT), a novel oral soluble guanylate cyclase stimulator, directly generates cyclic guanosine monophosphate and reduce the death incidence from cardio-vascular causes or hospitalization. Recent studies have shown beneficial effects of VIT in animal models of osteoporosis, but very little is currently known about the effects of VIT on bone defects in the osteoporotic states. Therefore, in this study, β-tricalcium phosphate (β-TCP) was used as a carrier to explore the effect of local VIT administration on the repair of femoral metaphyseal bone defects in ovariectomized (OVX) rats. When MC3T3-E1 was cultured in the presence of H2H2, VIT, similar to Melatonin (MT), therapy could increase the matrix mineralization and ALP, SOD2, SIRT1, and OPG expression, reduce ROS and Mito SOX production, RANKL expression, Promote the recovery of mitochondrial membrane potential. In the OVX rat model, VIT increases the osteogenic effect of β-TCP and better results were obtained at a dose of 5 mg. Local use of VIT can inhibit increased OC, BMP2 and RUNX2 expressions in bone tissue, while decreased SOST and TRAP expressions by RT-PCR and immunohistochemistry. Thereby, VIT stimulates bone regeneration and is a promising candidate for promoting bone repair in osteoporosis.
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Affiliation(s)
- Zhou-Shan Tao
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Cai-Liang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Escobar C, Pascual-Figal D, Manzano L, Nuñez J, Camafort M. Current Role of SLGT2 Inhibitors in the Management of the Whole Spectrum of Heart Failure: Focus on Dapagliflozin. J Clin Med 2023; 12:6798. [PMID: 37959263 PMCID: PMC10649290 DOI: 10.3390/jcm12216798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Heart failure (HF) is associated with a high morbidity and mortality burden. In light of more recent evidence, SGLT2 inhibitors are currently recommended as first-line therapy in managing patients with HF, regardless of ejection fraction, to reduce HF burden. The DAPA-HF and DELIVER trials, and particularly, the pooled analysis of both studies, have shown that dapagliflozin significantly reduces the risk of cardiovascular death, all-cause death, total HF hospitalizations, and MACE in the whole spectrum of HF, with sustained benefits over time. Recent data have shown that the full implementation of dapagliflozin in clinical practice would translate into a robust reduction in hospitalizations for HF and death in real-life populations. Many pathophysiological mechanisms have been involved in these benefits, particularly the positive effects of dapagliflozin on reversing cardiac (atrial and ventricular) remodeling, reducing cardiac fibrosis and inflammation, and improving endothelial dysfunction. In this manuscript, we reviewed from a practical point of view the role of dapagliflozin in the management of the whole spectrum of patients with HF.
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Affiliation(s)
- Carlos Escobar
- Cardiology Department, University Hospital La Paz, 28046 Madrid, Spain
| | - Domingo Pascual-Figal
- Cardiology Department, Hospital Clinico Universitario Virgen de la Arrixaca, 30120 Murcia, Spain;
- Spanish National Cardiovascular Research Centre (CNIC), 28029 Madrid, Spain
- Department of Medicine, Universidad de Murcia, 30100 Murcia, Spain
| | - Luis Manzano
- Internal Medicine Department, University Hospital Ramon y Cajal, Alcala de Henares University, 28034 Madrid, Spain;
| | - Julio Nuñez
- Cardiology Department, University Hospital Clínico of Valencia, Instituto de Investigación Sanitaria (INCLIVA), 46010 Valencia, Spain;
- CIBER Cardiovascular, 28029 Madrid, Spain
| | - Miguel Camafort
- Internal Medicine Department, Hospital Clinic, University of Barcelona, 08036 Barcelona, Spain;
- CIBER OBN, ISCIII (Centro de Investigación Biomédica en Red, Instituto de Salud Carlos III), 28222 Madrid, Spain
- Working Group of Cardiovascular Risk, Nutrition, and Aging, IDIBAPS (Instituto de Investigaciones Biomédicas August Pi i Sunyer), 08036 Barcelona, Spain
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