SIRT1 Deficiency in endothelial progenitor cells drives pro-senescent microparticles release through MKK6 upregulation

International audienc

SIRT1 Deficiency in endothelial progenitor cells drives pro-senescent microparticles release through MKK6 upregulation

International audienc

Presence of SARS-CoV-2 in a Cornea Transplant

International audienceBackground: The SARS-CoV-2 pandemic has impacted tissue transplantation procedures since conjunctivas were found to be associated with coronavirus infection. Here, we investigated infection of a cornea graft from a COVID-19-positive donor. Methods: In order to evaluate the presence of SARS-CoV-2 in the cornea graft we first carried out a qRT-PCR and then we investigated the presence of SARS-CoV-2 by fluorescence and electron microscopy. Conclusions: Although the cornea graft was found to be negative by qRT-PCR, we were able to show the presence of SARS-CoV-2 in corneal cells expressing the SARS-CoV-2 receptor, ACE2. Taken together, our findings may have important implications for the use of corneal tissue in graft indications and open the debate on SARS-CoV-2 transmissibility