Volume 109, Issue 3 pp. 271-281
ORIGINAL ARTICLE

Cell-free DNA levels are increased in acute graft-versus-host disease

Anna Kroeze

Anna Kroeze

Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Anne S. Cornelissen

Anne S. Cornelissen

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
M. Fernanda Pascutti

M. Fernanda Pascutti

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Myrddin Verheij

Myrddin Verheij

Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Ingrid Bulder

Ingrid Bulder

Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Sjoerd Klarenbeek

Sjoerd Klarenbeek

Experimental Animal Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands

Search for more papers by this author
Aicha Ait Soussan

Aicha Ait Soussan

Department of Experimental Immunohematology, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Mette D. Hazenberg

Mette D. Hazenberg

Department of Hematology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands

Search for more papers by this author
Erfan Nur

Erfan Nur

Department of Hematology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands

Search for more papers by this author
C. Ellen van der Schoot

C. Ellen van der Schoot

Department of Experimental Immunohematology, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Carlijn Voermans

Carlijn Voermans

Department of Hematopoiesis, Sanquin Research, Amsterdam, The Netherlands

Search for more papers by this author
Sacha S. Zeerleder

Corresponding Author

Sacha S. Zeerleder

Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands

Department of Hematology, Division of Internal Medicine, Luzerner Kantonsspital, Luzern, and University of Berne, Bern, Switzerland

Correspondence

Sacha S. Zeerleder, Department of Hematology, Division of Internal Medicine, Luzerner Kantonsspital, CH-6000 Luzern, Switzerland.

Email: [email protected]

Search for more papers by this author
First published: 26 May 2022

A. Kroeze and A. S. Cornelissen are first authors, M. F. Pascutti and M. Verheij are second authors, and C. Voermans and Sacha S. Zeerleder are senior authors.

Funding information: Landsteiner Foundation for Blood Transfusion Research, Grant/Award Numbers: 1101, 1719; Sanquin Research, Grant/Award Number: PPOC 13-027

Abstract

Background

Cell-free DNA (cfDNA) and nucleosomes, consisting of cfDNA and histones, are markers of cell activation and damage. In systemic inflammation these markers predict severity and fatality. However, the role of cfDNA in acute Graft-versus-Host Disease (aGvHD), a major complication of allogeneic hematopoietic stem cell transplantation (HSCT), is unknown.

Objective

The aim of this study is to investigate the role of cfDNA as a marker of aGvHD.

Methods

We followed nucleosome levels in 37 allogeneic HSCT patients and an established xenotransplantation mouse model. We determined the origin of cfDNA with a species-specific polymerase chain reaction.

Results

In the plasma of aGvHD patients, nucleosome levels significantly increased around the time of aGvHD diagnosis compared to pretransplant, concurrently with a significant increase of known aGvHD markers ST2 and REG3α. In mice, we confirmed that nucleosomes were elevated during clinically detectable aGvHD. We found cfDNA to be mainly of human origin and to a lesser extent of mouse origin, indicating that cfDNA is released by (proliferating) human xeno-reactive PBMC and damaged mouse cells.

Conclusion

We show increased cfDNA both in an aGvHD mouse model and in aGvHD patients. We also demonstrate that donor hematopoietic cells and to a lesser degree (damaged) host cells are the cellular source of cfDNA in aGvHD. We propose that nucleosomes and cfDNA might be an additive marker for aGvHD.

CONFLICT OF INTEREST

The authors declare no competing financial interests.

DATA AVAILABILITY STATEMENT

The original data of this study are available on reasonable request from the corresponding author.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.