The BAFF receptor TACI controls IL-10 production by regulatory B cells and CLL B cells

D Saulep-Easton, F B Vincent, P S Quah, A Wei, S B Ting, C M Croce, C Tam, F Mackay

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Interleukin (IL)-10-producing B cells (B10 cells) have emerged as important regulatory elements with immunosuppressive roles. Chronic lymphocytic leukemia (CLL) B cells also secrete IL-10 and share features of B10 cells, suggesting a possible contribution of CLL B cells to immunosuppression in CLL patients. Factors controlling the emergence of B10 cells are not known. B-cell-activating factor of the tumor necrosis factor (TNF) family (BAFF) is critical for B-cell maturation and survival, and is implicated in the development and progression of CLL. We sought to investigate the role of BAFF in the emergence of IL-10-producing regulatory B cells in healthy donors and CLL patients. Here, we report that BAFF signaling promotes IL-10 production by CLL B cells in a mouse model of CLL and in CLL patients. Moreover, BAFF-mediated IL-10 production by normal and CLL B cells is mediated via its receptor transmembrane activator and cyclophilin ligand interactor. Our work uncovered a major targetable pathway important for the generation of regulatory B cells that is detrimental to immunity in CLL.
Original languageEnglish
Pages (from-to)163 - 172
Number of pages10
JournalLeukemia
Volume30
Issue number1
DOIs
Publication statusPublished - 2016

Cite this

Saulep-Easton, D ; Vincent, F B ; Quah, P S ; Wei, A ; Ting, S B ; Croce, C M ; Tam, C ; Mackay, F. / The BAFF receptor TACI controls IL-10 production by regulatory B cells and CLL B cells. In: Leukemia. 2016 ; Vol. 30, No. 1. pp. 163 - 172.
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abstract = "Interleukin (IL)-10-producing B cells (B10 cells) have emerged as important regulatory elements with immunosuppressive roles. Chronic lymphocytic leukemia (CLL) B cells also secrete IL-10 and share features of B10 cells, suggesting a possible contribution of CLL B cells to immunosuppression in CLL patients. Factors controlling the emergence of B10 cells are not known. B-cell-activating factor of the tumor necrosis factor (TNF) family (BAFF) is critical for B-cell maturation and survival, and is implicated in the development and progression of CLL. We sought to investigate the role of BAFF in the emergence of IL-10-producing regulatory B cells in healthy donors and CLL patients. Here, we report that BAFF signaling promotes IL-10 production by CLL B cells in a mouse model of CLL and in CLL patients. Moreover, BAFF-mediated IL-10 production by normal and CLL B cells is mediated via its receptor transmembrane activator and cyclophilin ligand interactor. Our work uncovered a major targetable pathway important for the generation of regulatory B cells that is detrimental to immunity in CLL.",
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The BAFF receptor TACI controls IL-10 production by regulatory B cells and CLL B cells. / Saulep-Easton, D; Vincent, F B; Quah, P S; Wei, A; Ting, S B; Croce, C M; Tam, C; Mackay, F.

In: Leukemia, Vol. 30, No. 1, 2016, p. 163 - 172.

Research output: Contribution to journalArticleResearchpeer-review

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