Michael G. Katz, Dan G. Ohad, Philip Putter, Nataly Shtraizent, Ehud Shahar, Smadar Tal, Efrat Eliyahu
Icahn School of Medicine at Mount Sinai. Veterinary Teaching Hospital of the Koret School of Veterinary Medicine and Hebrew University of Jerusalem. Spot On Veterinary Hospital. Senex. Frezent Biological Solutions. Tel-Hai College. Migal-Galilee Research Institute.
United States and Israel
Frontiers in Veterinary Medicine
Front Vet Med 2024; 11:
DOI: 10.3389/fvets.2024.1415030
Abstract
Myxomatous mitral valve disease (MMVD) stands out as the most prevalent acquired canine heart disease. Its occurrence can reach up to 40% in small breed dogs and escalates in geriatric canine populations. MMVD leads to thickening and incomplete coaptation of valve leaflets during systole, resulting in secondary mitral valve regurgitation. Serious complications may arise concurrently with the worsening of mitral valve regurgitation, including left-and right-sided congestive heart failure, and pulmonary hypertension (PH). Ultimately, the PH progression might contribute to the patient’s demise or to the owner’s decision of euthanasia. Most currently available FDA-approved therapies for PH are costly and aim to address the imbalance between vasoconstriction and vasodilation to restore endothelial cell function. However, none of these medications impact the molecular dysfunction of cells or impede the advancement of pulmonary vascular and right ventricular remodeling. Recent evidence has showcased successful gene therapy approaches in laboratory animal models of PH. In this manuscript, we summarize the latest advancements in gene therapy for the treatment of PH in animals. The manuscript incorporates original data showcasing sample presentations, along with non-invasive hemodynamic assessments. Our findings demonstrate that the use of metabolic gene therapy, combining synthetic adeno-associated virus with acid ceramidase, has the potential to significantly reduce the need for drug treatment and improve spontaneously occurring PH in dogs.
Category
Class II. Pulmonary Hypertension Associated with Valvular Disease of the Left Side of the Heart
Genetic Factors Associated with Pulmonary Vascular Disease
Medical Therapy. Efficacy or Lack of Efficacy
Animal Models of Pulmonary Vascular Disease and Therapy
Age Focus: No Age-Related Focus
Fresh or Filed Publication: Fresh (PHresh). Less than 1-2 years since publication
Article Access
Free PDF File or Full Text Article Available Through PubMed or DOI: Yes