Blood-retinal barrier (BRB) restricts systemically administered drugs from entering the retina. In this study, we aimed to investigate the effects of the Acorus tatarinowii Schott (Shi Chang Pu (SCP)) extract on the permeability of BRB and clarify the underlying mechanisms. Rat retinal vascular endothelial cells (RVECs) were grown on transwell inserts to model the tight junctions of inner BRB in vitro. The results showed that after SCP treatment, the junctions between RVECs gradually disappeared, and the transepithelial electrical resistance (TEER) value of the cell monolayer was markedly decreased in time, indicating damage to the barrier integrity. Moreover, the expression levels of tight-junction proteins ZO-1 and occludin were significantly decreased after SCP treatment. In conclusion, this study provides promising evidence that the integrity and permeability of inner BRB could be obviously changed by SCP treatment. RezumatBariera hemato-retiniană (BHR) împiedică medicamentele administrate sistemic să pătrundă în retină. În acest studiu, ne-am propus investigarea efectelor și a mecanismelor de acțiune ale extractului de Acorus tatarinowii Schott (Shi Chang Pu (SCP)) asupra permeabilității BHR. Au fost cultivate celule endoteliale vasculare retiniene de șobolan (CEVR) pe inserții transwell pentru a modela joncțiunile interne strânse ale BRB in vitro. Rezultatele au arătat că după tratamentul SCP, joncțiunile dintre CEVR au dispărut treptat, iar valoarea rezistenței electrice transepiteliale (RETE) a monostratului celular a scăzut semnificativ în timp, indicând deteriorarea integrității barierei. Mai mult, nivelurile de expresie ale proteinelor cu joncțiune strânsă ZO-1 și ocludină au fost semnificativ scăzute după tratamentul SCP. În concluzie, acest studiu oferă dovezi promițătoare că integritatea și permeabilitatea BHR interioare ar putea fi modificate în mod evident prin tratamentul SCP.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.