Vaccines (Jul 2021)

Anti-SARS-CoV-2 Immune Responses in Patients Receiving an Allogeneic Stem Cell or Organ Transplant

  • Djordje Atanackovic,
  • Tim Luetkens,
  • Stephanie V. Avila,
  • Nancy M. Hardy,
  • Forat Lutfi,
  • Gabriela Sanchez-Petitto,
  • Erica Vander Mause,
  • Nicole Glynn,
  • Heather D. Mannuel,
  • Hanan Alkhaldi,
  • Kim Hankey,
  • John Baddley,
  • Saurabh Dahiya,
  • Aaron P. Rapoport

DOI
https://doi.org/10.3390/vaccines9070737
Journal volume & issue
Vol. 9, no. 7
p. 737

Abstract

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Patients after autologous (autoSCT) and allogeneic stem cell transplantation (alloSCT) are at an increased risk of COVID-19-related morbidity and mortality, compounded by an immune system weakened by the underlying malignancy and prior treatments. Allogeneic transplantation, including stem cell and solid organ transplants, requires intensive immunosuppressive prophylaxis, which may further undermine the development of a protective vaccine-induced anti-viral immunity. Herein, we report on short- and long-term antiviral immune responses in two peri-stem cell transplant recipients and a third patient who received a COVID-19 vaccination after kidney transplantation. Our data indicate that: (1) patients post-alloSCT may be able to mount an anti-COVID-19 immune response; however, a sufficient time interval between transplant and exposure may be of critical importance; (2) alloSCT recipients with preexisting anti-SARS-CoV-2 immunity are at risk for losing protective humoral immunity following transplantation, particularly if the stem-cell donor lacks antiviral immunity, e.g., vaccine-derived immunity; and (3) some post-transplant patients are completely unable to build an immune response to a COVID-19 vaccine, perhaps based on the prophylactic suppression of T cell immunity.

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