Enhanced antibody responses in CD19-Cre mice

Abstract CD19-Cre is an important and widely used Cre-lox model for B cell-specific genetic manipulation in murine systems. Mice carrying one allele of CD19-Cre are, at the same time, rendered heterozygote for CD19, a crucial coreceptor of the B cell antigen receptor (BCR). As a result, CD19-Cre mic...

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Main Authors: Diogo M. Cunha, Sara Hernández-Pérez, Pieta K. Mattila
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-83954-8
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author Diogo M. Cunha
Sara Hernández-Pérez
Pieta K. Mattila
author_facet Diogo M. Cunha
Sara Hernández-Pérez
Pieta K. Mattila
author_sort Diogo M. Cunha
collection DOAJ
description Abstract CD19-Cre is an important and widely used Cre-lox model for B cell-specific genetic manipulation in murine systems. Mice carrying one allele of CD19-Cre are, at the same time, rendered heterozygote for CD19, a crucial coreceptor of the B cell antigen receptor (BCR). As a result, CD19-Cre mice exhibit diminished expression levels of CD19, with potential, yet insufficiently examined, consequences in B cell activation. Here, we report significantly heightened antibody responses upon both T-dependent (NP-KLH) and T-independent (NP-Ficoll) immunizations as well as elevated levels of basal IgM immunoglobulin levels in CD19-Cre mice. In vitro, we observed enhanced class-switch recombination and a moderate reduction in B cell proliferation upon LPS and IFNγ stimulation, yet no drastic differences in BCR signalling. Our findings warrant careful consideration in the use of CD19-Cre mouse model in B cell research.
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issn 2045-2322
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spelling doaj-art-acfaad71ed4a49dba6224522bcbb64df2025-01-12T12:14:44ZengNature PortfolioScientific Reports2045-23222025-01-011511810.1038/s41598-024-83954-8Enhanced antibody responses in CD19-Cre miceDiogo M. Cunha0Sara Hernández-Pérez1Pieta K. Mattila2Institute of Biomedicine and MediCity Research Laboratories, University of TurkuInstitute of Biomedicine and MediCity Research Laboratories, University of TurkuInstitute of Biomedicine and MediCity Research Laboratories, University of TurkuAbstract CD19-Cre is an important and widely used Cre-lox model for B cell-specific genetic manipulation in murine systems. Mice carrying one allele of CD19-Cre are, at the same time, rendered heterozygote for CD19, a crucial coreceptor of the B cell antigen receptor (BCR). As a result, CD19-Cre mice exhibit diminished expression levels of CD19, with potential, yet insufficiently examined, consequences in B cell activation. Here, we report significantly heightened antibody responses upon both T-dependent (NP-KLH) and T-independent (NP-Ficoll) immunizations as well as elevated levels of basal IgM immunoglobulin levels in CD19-Cre mice. In vitro, we observed enhanced class-switch recombination and a moderate reduction in B cell proliferation upon LPS and IFNγ stimulation, yet no drastic differences in BCR signalling. Our findings warrant careful consideration in the use of CD19-Cre mouse model in B cell research.https://doi.org/10.1038/s41598-024-83954-8B cellsBCRCD19Antibody responseClass-switch recombination
spellingShingle Diogo M. Cunha
Sara Hernández-Pérez
Pieta K. Mattila
Enhanced antibody responses in CD19-Cre mice
Scientific Reports
B cells
BCR
CD19
Antibody response
Class-switch recombination
title Enhanced antibody responses in CD19-Cre mice
title_full Enhanced antibody responses in CD19-Cre mice
title_fullStr Enhanced antibody responses in CD19-Cre mice
title_full_unstemmed Enhanced antibody responses in CD19-Cre mice
title_short Enhanced antibody responses in CD19-Cre mice
title_sort enhanced antibody responses in cd19 cre mice
topic B cells
BCR
CD19
Antibody response
Class-switch recombination
url https://doi.org/10.1038/s41598-024-83954-8
work_keys_str_mv AT diogomcunha enhancedantibodyresponsesincd19cremice
AT sarahernandezperez enhancedantibodyresponsesincd19cremice
AT pietakmattila enhancedantibodyresponsesincd19cremice