• 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.

PLoS One . Impaired immune response mediated by prostaglandin E2 promotes severe COVID-19 disease

tetano

Editor, Senior Moderator
PLoS One


. 2021 Aug 4;16(8):e0255335.
doi: 10.1371/journal.pone.0255335. eCollection 2021.
Impaired immune response mediated by prostaglandin E2 promotes severe COVID-19 disease


Melanie Ricke-Hoch[SUP] 1 [/SUP], Elisabeth Stelling[SUP] 1 [/SUP], Lisa Lasswitz[SUP] 2 [/SUP], Antonia P Gunesch[SUP] 2 3 4 [/SUP], Martina Kasten[SUP] 1 [/SUP], Francisco J Zapatero-Belinchón[SUP] 2 5 [/SUP], Graham Brogden[SUP] 2 [/SUP], Gisa Gerold[SUP] 2 5 6 [/SUP], Thomas Pietschmann[SUP] 2 3 [/SUP], Virginie Montiel[SUP] 7 [/SUP], Jean-Luc Balligand[SUP] 7 [/SUP], Federica Facciotti[SUP] 8 [/SUP], Emilio Hirsch[SUP] 9 [/SUP], Thomas Gausepohl[SUP] 1 [/SUP], Husni Elbahesh[SUP] 10 [/SUP], Guus F Rimmelzwaan[SUP] 10 [/SUP], Anne Höfer[SUP] 11 12 [/SUP], Mark P Kühnel[SUP] 11 12 [/SUP], Danny Jonigk[SUP] 11 12 [/SUP], Julian Eigendorf[SUP] 13 [/SUP], Uwe Tegtbur[SUP] 13 [/SUP], Lena Mink[SUP] 13 [/SUP], Michaela Scherr[SUP] 14 [/SUP], Thomas Illig[SUP] 15 [/SUP], Axel Schambach[SUP] 16 17 [/SUP], Tobias J Pfeffer[SUP] 1 [/SUP], Andres Hilfiker[SUP] 18 [/SUP], Axel Haverich[SUP] 18 [/SUP], Denise Hilfiker-Kleiner[SUP] 1 19 [/SUP]



Affiliations

Abstract

The SARS-CoV-2 coronavirus has led to a pandemic with millions of people affected. The present study finds that risk-factors for severe COVID-19 disease courses, i.e. male sex, older age and sedentary life style are associated with higher prostaglandin E2 (PGE2) serum levels in blood samples from unaffected subjects. In COVID-19 patients, PGE2 blood levels are markedly elevated and correlate positively with disease severity. SARS-CoV-2 induces PGE2 generation and secretion in infected lung epithelial cells by upregulating cyclo-oxygenase (COX)-2 and reducing the PG-degrading enzyme 15-hydroxyprostaglandin-dehydrogenase. Also living human precision cut lung slices (PCLS) infected with SARS-CoV-2 display upregulated COX-2. Regular exercise in aged individuals lowers PGE2 serum levels, which leads to increased Paired-Box-Protein-Pax-5 (PAX5) expression, a master regulator of B-cell survival, proliferation and differentiation also towards long lived memory B-cells, in human pre-B-cell lines. Moreover, PGE2 levels in serum of COVID-19 patients lowers the expression of PAX5 in human pre-B-cell lines. The PGE2 inhibitor Taxifolin reduces SARS-CoV-2-induced PGE2 production. In conclusion, SARS-CoV-2, male sex, old age, and sedentary life style increase PGE2 levels, which may reduce the early anti-viral defense as well as the development of immunity promoting severe disease courses and multiple infections. Regular exercise and Taxifolin treatment may reduce these risks and prevent severe disease courses.
 
Back
Top Bottom