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Lookup NU author(s): Dr Venetia BigleyORCiD, Dr Xiao WangORCiD, Dr Rachel Dickinson, Dr Naomi McGovern, Sarah Pagan, Ian Dimmick, Dr Jonathan Wallis, Dr James Lordan, Dr Clare Morgan, Professor Andrew Cant, Professor Sophie HambletonORCiD, Professor Matthew CollinORCiD
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Congenital or acquired cellular deficiencies in humans have the potential to reveal much about normal hematopoiesis and immune function. We show that a recently described syndrome of monocytopenia, B and NK lymphoid deficiency additionally includes the near absence of dendritic cells. Four subjects showed severe depletion of the peripheral blood HLA-DR+ lineage(-)compartment, with virtually no CD123(+) or CD11c(+) dendritic cells (DCs) and very few CD14(+) or CD16(+) monocytes. The only remaining HLA-DR+ lineage(-) cells were circulating CD34(+) progenitor cells. Dermal CD14(+) and CD1a(+) DC were also absent, consistent with their dependence on blood-derived precursors. In contrast, epidermal Langerhans cells and tissue macrophages were largely preserved. Combined loss of peripheral DCs, monocytes, and B and NK lymphocytes was mirrored in the bone marrow by complete absence of multilymphoid progenitors and depletion of granulocyte-macrophage progenitors. Depletion of the HLA-DR+ peripheral blood compartment was associated with elevated serum fms-like tyrosine kinase ligand and reduced circulating CD4(+)CD25(hi)FoxP3(+) T cells, supporting a role for DC in T reg cell homeostasis.
Author(s): Bigley V, Haniffa M, Doulatov S, Wang XN, Dickinson R, McGovern N, Jardine L, Pagan S, Dimmick I, Chua I, Wallis J, Lordan J, Morgan C, Kumararatne DS, Doffinger R, van der Burg M, van Dongen J, Cant A, Dick JE, Hambleton S, Collin M
Publication type: Article
Publication status: Published
Journal: Journal of Experimental Medicine
Year: 2011
Volume: 208
Issue: 2
Pages: 227-234
Print publication date: 17/01/2011
ISSN (print): 0022-1007
ISSN (electronic): 1540-9538
Publisher: Rockefeller University Press
URL: http://dx.doi.org/10.1084/jem.20101459
DOI: 10.1084/jem.20101459
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