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2016 ; 6
(ä): 32415
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Novel Foxp3(-) IL-10(-) Regulatory T-cells Induced by B-Cells Alleviate
Intestinal Inflammation in Vivo
#MMPMID27581189
Shao TY
; Hsu LH
; Chien CH
; Chiang BL
Sci Rep
2016[Sep]; 6
(ä): 32415
PMID27581189
show ga
Recent studies have revealed various Foxp3(-) regulatory T (Treg) cell subsets
effectively protect mice from colitis. In the present study, we demonstrated that
B cells induced a particular subset of regulatory T (Treg-of-B) cells, expressing
programmed cell death 1 (PD-1), inducible costimulator (ICOS),
lymphocyte-activation gene 3 (LAG3), glucocorticoid-induced tumor necrosis factor
receptor (GITR), and OX-40, did not express Foxp3. Treg-of-B cells produced
abundant levels of IL-10 and low levels of IL-4 and TGF-?. Adoptive transfer of
Treg-of-B cells protected mice from CD4(+)CD45RB(hi) T-cell-induced colitis,
including infiltration of leukocytes, depletion of goblet cells, epithelial
hyperplasia, and inhibition of Th1 and Th17 cytokines. These features were
similar to IL-10-producing type 1 regulatory T (Tr1) cells; however,
IL-10-deficient Treg-of-B cells maintained their suppressive function in vitro as
well as in vivo, while the regulation of Tr1 cells depended on IL-10. In
conclusion, Treg-of-B cells protected against experimental colitis through an
IL-10-independent mechanism. We reported a novel subpopulation of regulatory T
cells was different from conventional Foxp3(+) Treg and IL-10-producing Tr1
cells.
|Adoptive Transfer
[MESH]
|Animals
[MESH]
|Antigens, CD/genetics/immunology
[MESH]
|B-Lymphocytes/*immunology/pathology
[MESH]
|Cell Communication/immunology
[MESH]
|Colitis/genetics/*immunology/pathology/prevention & control
[MESH]