B cell-derived cfDNA after primary BNT162b2 mRNA vaccination anticipates memory B cells and SARS-CoV-2 neutralizing antibodies

Ilana Fox-Fisher, Sheina Piyanzin, Mayan Briller, Esther Oiknine-Djian, Or Alfi, Roni Ben-Ami, Ayelet Peretz, Daniel Neiman, Bracha Lea Ochana, Ori Fridlich, Zeina Drawshy, Agnes Klochendler, Judith Magenheim, Danielle Share, Ran Avrahami, Yaarit Ribak, Aviv Talmon, Limor Rubin, Neta Milman, Meital SegevErik Feldman, Yuval Tal, Shai S. Shen-Orr, Benjamin Glaser, Ruth Shemer, Dana Wolf, Yuval Dor

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Background: Much remains unknown regarding the response of the immune system to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccination. Methods: We employed circulating cell-free DNA (cfDNA) to assess the turnover of specific immune cell types following administration of the Pfizer/BioNTech vaccine. Findings: The levels of B cell cfDNA after the primary dose correlated with development of neutralizing antibodies and memory B cells after the booster, revealing a link between early B cell turnover—potentially reflecting affinity maturation—and later development of effective humoral response. We also observed co-elevation of B cell, T cell, and monocyte cfDNA after the booster, underscoring the involvement of innate immune cell turnover in the development of humoral and cellular adaptive immunity. Actual cell counts remained largely stable following vaccination, other than a previously demonstrated temporary reduction in neutrophil and lymphocyte counts. Conclusions: Immune cfDNA dynamics reveal the crucial role of the primary SARS-CoV-2 vaccine in shaping responses of the immune system following the booster vaccine. Funding: This work was supported by a generous gift from Shlomo Kramer. Supported by grants from Human Islet Research Network (HIRN UC4DK116274 and UC4DK104216 to R.S. and Y.D.), Ernest and Bonnie Beutler Research Program of Excellence in Genomic Medicine, The Alex U Soyka Pancreatic Cancer Fund, The Israel Science Foundation, the Waldholtz/Pakula family, the Robert M. and Marilyn Sternberg Family Charitable Foundation, the Helmsley Charitable Trust, Grail, and the DON Foundation (to Y.D.). Y.D. holds the Walter and Greta Stiel Chair and Research Grant in Heart Studies. I.F.-F. received a fellowship from the Glassman Hebrew University Diabetes Center.

Original languageEnglish
Pages (from-to)468-480.e5
JournalMed
Volume3
Issue number7
DOIs
StatePublished - 8 Jul 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc.

Funding

We thank Idit Shiff and Abed Nasseredin from the Core Research Facility at The Hebrew University Faculty of Medicine for their support in sequencing analysis, and Noa Makhervax and Dr Lilach Gavish for help in coordinating the effort. This work was supported by a generous gift from Shlomo Kramer . Supported by grants from Human Islet Research Network ( HIRN UC4DK116274 and UC4DK104216 to R.S and Y.D.); Ernest and Bonnie Beutler Research Program of Excellence in Genomic Medicine, The Alex U Soyka Pancreatic Cancer Fund , The Israel Science Foundation , the Waldholtz/Pakula family , the Robert M. and Marilyn Sternberg Family Charitable Foundation , the Helmsley Charitable Trust , Grail, and the DON Foundation . Y.D. holds the Walter and Greta Stiel Chair and Research Grant in Heart Studies. I.F.-F. received a fellowship from the Glassman Hebrew University Diabetes Center . We thank Idit Shiff and Abed Nasseredin from the Core Research Facility at The Hebrew University Faculty of Medicine for their support in sequencing analysis, and Noa Makhervax and Dr Lilach Gavish for help in coordinating the effort. This work was supported by a generous gift from Shlomo Kramer. Supported by grants from Human Islet Research Network (HIRN UC4DK116274 and UC4DK104216 to R.S and Y.D.); Ernest and Bonnie Beutler Research Program of Excellence in Genomic Medicine, The Alex U Soyka Pancreatic Cancer Fund, The Israel Science Foundation, the Waldholtz/Pakula family, the Robert M. and Marilyn Sternberg Family Charitable Foundation, the Helmsley Charitable Trust, Grail, and the DON Foundation. Y.D. holds the Walter and Greta Stiel Chair and Research Grant in Heart Studies. I.F.-F. received a fellowship from the Glassman Hebrew University Diabetes Center. Conceptualization, Y.D. and I.F.-F.; investigation, I.F.-F. S.P. M.B. E.O.-D. O.A. N.M. M.S. E.F. R.A. and O.F.; project administration, R.B.-A. A.P. D.N. B.-L.O. O.F. Z.D. A.K. J.M. D.S. Y.R. A.T. and L.R.; supervision, Y.D. R.S. B.G. D.W. Y.T. and S.S.S.-O.; writing – original draft, Y.D. and I.F.-F.; writing – review & editing, R.S. B.G. A.K. D.W. Y.T. and S.S.S.-O. I.F.-F. and R.A. performed statistical analyses. Y.D. I.F.-F. and R.S. had unrestricted access to all data. Y.D. and I.F.-F. prepared the first draft of the manuscript, which was reviewed and edited by all other authors. All authors agreed to submit the manuscript, read and approved the final draft, and take full responsibility for its content, including the accuracy of the data and statistical analysis. I.F.-F. B.G. R.S. and Y.D. have filed patents related to DNA methylation markers.

FundersFunder number
Alex U Soyka Pancreatic Cancer Fund
Core Research Facility
Glassman Hebrew University Diabetes Center
Robert M. and Marilyn Sternberg Family Charitable Foundation
Waldholtz/Pakula family
National Institute of Diabetes and Digestive and Kidney DiseasesUC4DK104216
Leona M. and Harry B. Helmsley Charitable Trust
Human Islet Research NetworkHIRN UC4DK116274
Israel Science Foundation
Stichting Diabetes Onderzoek Nederland

    Keywords

    • BNT162b2
    • DNA methylation
    • SARS-CoV-2
    • Translation to patients
    • cfDNA
    • liquid biopsy
    • mRNA vaccine
    • memory B-cell
    • neutralizing antibody
    • tissue dynamics

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