TY - JOUR
T1 - An essential role for the Zn 2+ transporter ZIP7 in B cell development
AU - Anzilotti, Consuelo
AU - Swan, David J.
AU - Boisson, Bertrand
AU - Deobagkar-Lele, Mukta
AU - Oliveira, Catarina
AU - Chabosseau, Pauline
AU - Engelhardt, Karin R.
AU - Xu, Xijin
AU - Chen, Rui
AU - Alvarez, Luis
AU - Berlinguer-Palmini, Rolando
AU - Bull, Katherine R.
AU - Cawthorne, Eleanor
AU - Cribbs, Adam P.
AU - Crockford, Tanya L.
AU - Dang, Tarana Singh
AU - Fearn, Amy
AU - Fenech, Emma J.
AU - de Jong, Sarah J.
AU - Lagerholm, B. Christoffer
AU - Ma, Cindy S.
AU - Sims, David
AU - van den Berg, Bert
AU - Xu, Yaobo
AU - Cant, Andrew J.
AU - Kleiner, Gary
AU - Leahy, T. Ronan
AU - de la Morena, M. Teresa
AU - Puck, Jennifer M.
AU - Shapiro, Ralph S.
AU - van der Burg, Mirjam
AU - Chapman, J. Ross
AU - Christianson, John C.
AU - Davies, Benjamin
AU - McGrath, John A.
AU - Przyborski, Stefan
AU - Santibanez Koref, Mauro
AU - Tangye, Stuart G.
AU - Werner, Andreas
AU - Rutter, Guy A.
AU - Padilla-Parra, Sergi
AU - Casanova, Jean Laurent
AU - Cornall, Richard J.
AU - Conley, Mary Ellen
AU - Hambleton, Sophie
N1 - Funding Information:
We thank colleagues in the Newcastle University Flow Cytometry and Bioimaging Facilities for assistance. We acknowledge N. Ashley, A. Mead, P. Sopp and C. Waugh for assistance with single cell experiments and flow cytometry, D. Biggs and C. Preece for generation of the mouse models and staff at the Oxford Functional Genomics Facility for animal care. We also thank the National Diagnostic Epidermolysis Bullosa Laboratory (St Thomas’ Hospital, London) and the NIHR Newcastle Biomedical Research Centre. We thank K. Taylor for helpful discussions. This work was supported by the Medical Research Council (MR/J0003042/1, MR/N00275X/1 and MR/L020149/1: DIVA) (C.A., R.J.C., E.F., J.C.C. and G.A.R.); the Sir Jules Thorn Trust (12/JTA) (S.H., D.S., T.S.D. and K.E.); the St Giles Foundation, the Rockefeller University, INSERM, Paris Descartes University, Howard Hughes Medical Institute, National Institutes of Health (5P01AI061093 and 5R01AI104857) and the French National Research Agency (ANR 14-CE15-0009-01) (B.B., S.J.d.J., J.-L.C. and M.E.C.); the Wellcome Trust (WT098424AIA; 090532/Z/09/Z and 207556/Z/17/Z) (P.C., G.A.R., J.R.C., S.P.-P., B.D. and S.H.); Cancer Research UK (C52690/A19270) (C.O. and J.R.C.); Diabetes UK (BDA11/0004210 and BDA/15/0005275) (P.C., G.A.R.); the Northern Counties Kidney Research Fund (14.06) (A.F. and A.W.); the National Health and Medical Research Council of Australia (C.S.M., S.G.T.) and the Ludwig Institute for Cancer Research (E.J.F. and J.C.C.). S.H. is a Wellcome Investigator and R.J.C. is a Principal Investigator of the MRC Human Immunology Unit.
Publisher Copyright:
© 2019, The Author(s), under exclusive licence to Springer Nature America, Inc.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - Despite the known importance of zinc for human immunity, molecular insights into its roles have remained limited. Here we report a novel autosomal recessive disease characterized by absent B cells, agammaglobulinemia and early onset infections in five unrelated families. The immunodeficiency results from hypomorphic mutations of SLC39A7, which encodes the endoplasmic reticulum-to-cytoplasm zinc transporter ZIP7. Using CRISPR-Cas9 mutagenesis we have precisely modeled ZIP7 deficiency in mice. Homozygosity for a null allele caused embryonic death, but hypomorphic alleles reproduced the block in B cell development seen in patients. B cells from mutant mice exhibited a diminished concentration of cytoplasmic free zinc, increased phosphatase activity and decreased phosphorylation of signaling molecules downstream of the pre-B cell and B cell receptors. Our findings highlight a specific role for cytosolic Zn 2+ in modulating B cell receptor signal strength and positive selection.
AB - Despite the known importance of zinc for human immunity, molecular insights into its roles have remained limited. Here we report a novel autosomal recessive disease characterized by absent B cells, agammaglobulinemia and early onset infections in five unrelated families. The immunodeficiency results from hypomorphic mutations of SLC39A7, which encodes the endoplasmic reticulum-to-cytoplasm zinc transporter ZIP7. Using CRISPR-Cas9 mutagenesis we have precisely modeled ZIP7 deficiency in mice. Homozygosity for a null allele caused embryonic death, but hypomorphic alleles reproduced the block in B cell development seen in patients. B cells from mutant mice exhibited a diminished concentration of cytoplasmic free zinc, increased phosphatase activity and decreased phosphorylation of signaling molecules downstream of the pre-B cell and B cell receptors. Our findings highlight a specific role for cytosolic Zn 2+ in modulating B cell receptor signal strength and positive selection.
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U2 - 10.1038/s41590-018-0295-8
DO - 10.1038/s41590-018-0295-8
M3 - Article
C2 - 30718914
AN - SCOPUS:85061203395
SN - 1529-2908
VL - 20
SP - 350
EP - 361
JO - Nature Immunology
JF - Nature Immunology
IS - 3
ER -