1,8-Cineole ameliorates right ventricle dysfunction associated with pulmonary arterial hypertension by restoring connexin43 and mitochondrial homeostasis

Autor: Jorge M. Alves-Silva, Mónica Zuzarte, Carla Marques, Sofia Viana, Inês Preguiça, Rui Baptista, Cátia Ferreira, Carlos Cavaleiro, Neuza Domingues, Vilma A. Sardão, Paulo J. Oliveira, Flávio Reis, Lígia Salgueiro, Henrique Girão
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Pharmacological Research, Vol 180, Iss , Pp 106151- (2022)
Druh dokumentu: article
ISSN: 1096-1186
DOI: 10.1016/j.phrs.2022.106151
Popis: For the first time, the present study unravels a cardiospecific therapeutic approach for Pulmonary Arterial Hypertension (PAH), a disease with a very poor prognosis and high mortality rates due to right ventricle (RV) dysfunction. We first established a new in vitro model of high-pressure-induced hypertrophy that closely resembles heart defects associated with PAH and validated our in vitro findings on a preclinical in vivo model of monocrotaline (MCT)-induced PAH. Our results showed the in vitro antihypertrophic effect of 1,8-cineole, a monoterpene widely found in several essential oils. Also, a decrease in RV hypertrophy and fibrosis, and an improvement in heart function in vivo was observed, when 1,8-cineole was applied topically. Furthermore, 1,8-cineole restored gap junction protein connexin43 distribution at the intercalated disks and mitochondrial functionality, suggesting it may act by preserving cardiac cell-to-cell communication and bioenergetics. Overall, our results point out a promising therapeutic compound that can be easily applied topically, thus paving the way for the development of effective cardiac-specific therapies to greatly improve PAH outcomes.
Databáze: Directory of Open Access Journals