Your browser doesn't support javascript.
High cryo-resistance of SARS-CoV-2 virus: Increased risk of re-contamination at transplantation of cryopreserved ovarian tissue after COVID-19 pandemic.
Isachenko, Vladimir; Isachenko, Evgenia; Mallmann, Peter; Rahimi, Gohar.
  • Isachenko V; Department of Obstetrics and Gynecology, University Maternal Hospital, Cologne University, Cologne, Germany. Electronic address: vladimir.isachenko@uk-koeln.de.
  • Isachenko E; Department of Obstetrics and Gynecology, University Maternal Hospital, Cologne University, Cologne, Germany.
  • Mallmann P; Department of Obstetrics and Gynecology, University Maternal Hospital, Cologne University, Cologne, Germany.
  • Rahimi G; Department of Obstetrics and Gynecology, University Maternal Hospital, Cologne University, Cologne, Germany.
Cryobiology ; 103: 1-6, 2021 12.
Article in English | MEDLINE | ID: covidwho-1439960
ABSTRACT
Cryopreservation and re-transplantation of ovarian tissue after anticancer treatment is important medical technology. Today, during a pandemic, the risk of contamination of transplanted cells with SARS-CoV-2 virus is extremely high. Data about cryo-resistance (virulence and/or infectivity) of SARS-CoV-2 are limited. Analysis and systematization of literature data allow us to draw the following

conclusions:

1) The cytoplasmic membrane of somatic cell, like envelope of corona viruses, consists of lipid bilayer and this membrane, like envelope of corona virus, contains membrane proteins. Thus, we can consider the cytoplasmic membrane of an ordinary somatic cell as a model of the envelope membrane of SARS-CoV-2. It is expected that the response of the virus to cryopreservation is similar to that of a somatic cell. SARS-CoV-2 is more poor-water and more protein-rich than somatic cell, and this virus is much more cryo-resistant. 2) The exposure of somatic cells at low positive temperatures increases a viability of these cells. The safety of the virus is also in direct proportion to the decrease in temperature the positive effect of low temperatures on SARS-CoV-2 virus has been experimentally proven. 3) Resistance of SARS-CoV-2 to cryoprotectant-free cryopreservation is extremely high. The high viability rate of SARS-CoV-2 after freezing-drying confirms its high cryo-resistance. 4) The risk of SARS-CoV-2 infection after transplantation of cryopreserved ovarian tissues that have been contaminated with this virus, increases significantly. Our own experimental data on the increase in the viability of cancer cells after cryopreservation allow us to formulate a hypothesis about increasing of viability (virulence and/or infectivity) of SARS-CoV-2 virus after cryopreservation.
Subject(s)
Keywords

Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Prognostic study Limits: Humans Language: English Journal: Cryobiology Year: 2021 Document Type: Article

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Prognostic study Limits: Humans Language: English Journal: Cryobiology Year: 2021 Document Type: Article