• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Sci Adv . SARS-CoV-2 disrupts respiratory vascular barriers by suppressing Claudin-5 expression

tetano

Editor, Senior Moderator
Sci Adv


. 2022 Sep 23;8(38):eabo6783.
doi: 10.1126/sciadv.abo6783. Epub 2022 Sep 21.
SARS-CoV-2 disrupts respiratory vascular barriers by suppressing Claudin-5 expression


Rina Hashimoto[SUP] 1 [/SUP], Junya Takahashi[SUP] 2 [/SUP], Keisuke Shirakura[SUP] 2 [/SUP], Risa Funatsu[SUP] 2 [/SUP], Kaori Kosugi[SUP] 1 [/SUP], Sayaka Deguchi[SUP] 1 [/SUP], Masaki Yamamoto[SUP] 3 [/SUP], Yugo Tsunoda[SUP] 4 5 [/SUP], Maaya Morita[SUP] 2 [/SUP], Kosuke Muraoka[SUP] 2 [/SUP], Masato Tanaka[SUP] 2 [/SUP], Tomoaki Kanbara[SUP] 2 [/SUP], Shota Tanaka[SUP] 2 [/SUP], Shigeyuki Tamiya[SUP] 6 [/SUP], Nagisa Tokunoh[SUP] 6 7 [/SUP], Atsushi Kawai[SUP] 2 6 [/SUP], Masahito Ikawa[SUP] 2 6 8 [/SUP], Chikako Ono[SUP] 6 8 [/SUP], Keisuke Tachibana[SUP] 2 [/SUP], Masuo Kondoh[SUP] 2 [/SUP], Masanori Obana[SUP] 2 9 10 [/SUP], Yoshiharu Matsuura[SUP] 6 8 [/SUP], Akihiro Ohsumi[SUP] 11 [/SUP], Takeshi Noda[SUP] 4 5 [/SUP], Takuya Yamamoto[SUP] 1 12 13 [/SUP], Yasuo Yoshioka[SUP] 2 6 7 8 9 10 [/SUP], Yu-Suke Torisawa[SUP] 14 [/SUP], Hiroshi Date[SUP] 11 [/SUP], Yasushi Fujio[SUP] 2 8 9 [/SUP], Miki Nagao[SUP] 3 [/SUP], Kazuo Takayama[SUP] 1 15 [/SUP], Yoshiaki Okada[SUP] 2 8 [/SUP]



Affiliations

Abstract

In the initial process of coronavirus disease 2019 (COVID-19), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects respiratory epithelial cells and then transfers to other organs the blood vessels. It is believed that SARS-CoV-2 can pass the vascular wall by altering the endothelial barrier using an unknown mechanism. In this study, we investigated the effect of SARS-CoV-2 on the endothelial barrier using an airway-on-a-chip that mimics respiratory organs and found that SARS-CoV-2 produced from infected epithelial cells disrupts the barrier by decreasing Claudin-5 (CLDN5), a tight junction protein, and disrupting vascular endothelial cadherin-mediated adherens junctions. Consistently, the gene and protein expression levels of CLDN5 in the lungs of a patient with COVID-19 were decreased. CLDN5 overexpression or Fluvastatin treatment rescued the SARS-CoV-2-induced respiratory endothelial barrier disruption. We concluded that the down-regulation of CLDN5 expression is a pivotal mechanism for SARS-CoV-2-induced endothelial barrier disruption in respiratory organs and that inducing CLDN5 expression is a therapeutic strategy against COVID-19
 
Back
Top Bottom