Vertical Transmission of SARS-CoV-2–Specific Antibodies and Cytokine Profiles in Pregnancy

Jonathon M. Monroe, Huy Quang Quach, Sohan Punia, Elizabeth Ann L. Enninga, Yaroslav Fedyshyn, James H. Girsch, Bohdana Fedyshyn, Maureen Lemens, Dawn Littlefield, Supriya Behl, Elise Sintim-Aboagye, Maria C. Mejia Plazas, Satoko Yamaoka, Hideki Ebihara, Akhilesh Pandey, Cristina Correia, Choong Yong Ung, Hu Li, Robert Vassallo, Jie SunErica L. Johnson, Janet E. Olson, Elitza S. Theel, Andrew D. Badley, Richard B. Kennedy, Regan N. Theiler, Rana Chakraborty

Research output: Contribution to journalArticlepeer-review

Abstract

Despite intensive characterization of immune responses after COVID-19 infection and vaccination, research examining protective correlates of vertical transmission in pregnancy are limited. Herein, we profiled humoral and cellular characteristics in pregnant women infected or vaccinated at different trimesters and in their corresponding newborns. We noted a significant correlation between spike S1–specific IgG antibody and its RBD-ACE2 blocking activity (receptor-binding domain–human angiotensin-converting enzyme 2) in maternal and cord plasma (P < .001, R > 0.90). Blocking activity of spike S1–specific IgG was significantly higher in pregnant women infected during the third trimester than the first and second trimesters. Elevated levels of 28 cytokines/chemokines, mainly proinflammatory, were noted in maternal plasma with infection at delivery, while cord plasma with maternal infection 2 weeks before delivery exhibited the emergence of anti-inflammatory cytokines. Our data support vertical transmission of protective SARS-CoV-2–specific antibodies. This vertical antibody transmission and the presence of anti-inflammatory cytokines in cord blood may offset adverse outcomes of inflammation in exposed newborns.

Original languageEnglish (US)
Pages (from-to)473-484
Number of pages12
JournalJournal of Infectious Diseases
Volume229
Issue number2
DOIs
StatePublished - Feb 15 2024

Keywords

  • SARS-CoV-2
  • antibody
  • cytokines
  • placental transmission
  • pregnancy

ASJC Scopus subject areas

  • General Medicine

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