Author
Listed:
- Guillermo Rodríguez-Hernández
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Friederike V. Opitz
(Heinrich Heine University)
- Pilar Delgado
(B Cell Biology Lab, Centro Nacional de Investigaciones Cardiovasculares)
- Carolin Walter
(University of Muenster)
- Ángel F. Álvarez-Prado
(B Cell Biology Lab, Centro Nacional de Investigaciones Cardiovasculares)
- Inés González-Herrero
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Franziska Auer
(Heinrich Heine University
City of Hope Comprehensive Cancer Center)
- Ute Fischer
(Heinrich Heine University)
- Stefan Janssen
(Heinrich Heine University)
- Christoph Bartenhagen
(University Children’s Hospital of Cologne, Medical Faculty
University of Cologne)
- Javier Raboso-Gallego
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Ana Casado-García
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Alberto Orfao
(Institute of Biomedical Research of Salamanca (IBSAL)
CIBERON, and Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca)
- Oscar Blanco
(Institute of Biomedical Research of Salamanca (IBSAL)
Universidad de Salamanca)
- Diego Alonso-López
(Bioinformatics Unit, Cancer Research Center (CSIC-USAL))
- Javier De Las Rivas
(Institute of Biomedical Research of Salamanca (IBSAL)
Cancer Research Center (CSIC-USAL))
- Sara González de Tena-Dávila
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Markus Müschen
(City of Hope Comprehensive Cancer Center)
- Martin Dugas
(University of Muenster)
- Francisco Javier García Criado
(Institute of Biomedical Research of Salamanca (IBSAL)
Universidad de Salamanca)
- María Begoña García Cenador
(Institute of Biomedical Research of Salamanca (IBSAL)
Universidad de Salamanca)
- Carolina Vicente-Dueñas
(Institute of Biomedical Research of Salamanca (IBSAL))
- Julia Hauer
(Heinrich Heine University)
- Almudena R. Ramiro
(B Cell Biology Lab, Centro Nacional de Investigaciones Cardiovasculares)
- Isidro Sanchez-Garcia
(CSIC/Universidad de Salamanca
Institute of Biomedical Research of Salamanca (IBSAL))
- Arndt Borkhardt
(Heinrich Heine University)
Abstract
The prerequisite to prevent childhood B-cell acute lymphoblastic leukemia (B-ALL) is to decipher its etiology. The current model suggests that infection triggers B-ALL development through induction of activation-induced cytidine deaminase (AID; also known as AICDA) in precursor B-cells. This evidence has been largely acquired through the use of ex vivo functional studies. However, whether this mechanism governs native non-transplant B-ALL development is unknown. Here we show that, surprisingly, AID genetic deletion does not affect B-ALL development in Pax5-haploinsufficient mice prone to B-ALL upon natural infection exposure. We next test the effect of premature AID expression from earliest pro-B-cell stages in B-cell transformation. The generation of AID off-target mutagenic activity in precursor B-cells does not promote B-ALL. Likewise, known drivers of human B-ALL are not preferentially targeted by AID. Overall these results suggest that infections promote B-ALL through AID-independent mechanisms, providing evidence for a new model of childhood B-ALL development.
Suggested Citation
Guillermo Rodríguez-Hernández & Friederike V. Opitz & Pilar Delgado & Carolin Walter & Ángel F. Álvarez-Prado & Inés González-Herrero & Franziska Auer & Ute Fischer & Stefan Janssen & Christoph Barten, 2019.
"Infectious stimuli promote malignant B-cell acute lymphoblastic leukemia in the absence of AID,"
Nature Communications, Nature, vol. 10(1), pages 1-10, December.
Handle:
RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13570-y
DOI: 10.1038/s41467-019-13570-y
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