Essential role of CCL21 in establishment of central self-tolerance in T cells.

Essential role of CCL21 in establishment of central self-tolerance in T cells.
复制标题

DOI:
10.1084/jem.20161864
复制
发表时间:
2017-07-03
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Takahama Y
Takahama Y
中科院分区:
其他
文献类型:
--
作者:
Kozai M;Kubo Y;Katakai T;Kondo H;Kiyonari H;Schaeuble K;Luther SA;Ishimaru N;Ohigashi I;Takahama Y

文献摘要

参考文献

被引文献

相似文献

CCL21Ser 是趋化因子受体 CCR7 的配体之一。科扎伊等人。报道称,CCL21Ser 对于胸腺髓质中发育中胸腺细胞的积累和 T 细胞自我耐受的建立至关重要,表明体内 CCR7 配体之间的功能不平等。趋化因子受体 CCR7 引导 T 细胞重新定位到淋巴器官内,包括正在发育的胸腺细胞迁移到胸腺髓质中。然而,小鼠体内的三种功能性 CCR7 配体 CCL19、CCL21Ser 和 CCL21Leu 如何划分其在免疫器官中的作用尚不清楚。通过培育特异性缺乏 CCL21Ser 的小鼠,我们发现 CCL21Ser 对于胸腺髓质中阳性选择的胸腺细胞的积累至关重要。 CCL21Ser 缺陷小鼠的自身反应性胸腺细胞髓质缺失受到损害,并出现自身免疫性泪腺炎。淋巴结中的 T 细胞积累也有缺陷。这些结果表明 CCL21Ser 在胸腺髓质 T 细胞自我耐受建立中的非冗余作用,并揭示了体内 CCR7 配体之间的功能不平等。
CCL21Ser is one of the ligands for chemokine receptor CCR7. Kozai et al. report that CCL21Ser is essential for the accumulation of developing thymocytes in the thymic medulla and the establishment of self-tolerance in T cells, indicating a functional inequality among CCR7 ligands in vivo. The chemokine receptor CCR7 directs T cell relocation into and within lymphoid organs, including the migration of developing thymocytes into the thymic medulla. However, how three functional CCR7 ligands in mouse, CCL19, CCL21Ser, and CCL21Leu, divide their roles in immune organs is unclear. By producing mice specifically deficient in CCL21Ser, we show that CCL21Ser is essential for the accumulation of positively selected thymocytes in the thymic medulla. CCL21Ser-deficient mice were impaired in the medullary deletion of self-reactive thymocytes and developed autoimmune dacryoadenitis. T cell accumulation in the lymph nodes was also defective. These results indicate a nonredundant role of CCL21Ser in the establishment of self-tolerance in T cells in the thymic medulla, and reveal a functional inequality among CCR7 ligands in vivo.
DOI: 10.1016/j.immuni.2009.09.020
发表时间: 2009-12-18
期刊: IMMUNITY
影响因子: 32.4
作者:
Ehrlich, Lauren I. Richie;Oh, David Y.;Lewis, Richard S.
通讯作者: Lewis, Richard S.
DOI: 10.1073/pnas.97.23.12694
发表时间: 2000-11-07
影响因子: 11.1
作者:
Luther, SA;Tang, HL;Cyster, JG
通讯作者: Cyster, JG
DOI: 10.1182/blood.v91.8.2886.2886_2886_2895
发表时间: 1998-04-15
期刊: BLOOD
影响因子: 20.3
作者:
Nakano, H;Mori, S;Kakiuchi, T
通讯作者: Kakiuchi, T
DOI: 10.1016/s0092-8674(00)80059-8
发表时间: 1999-10-01
期刊: CELL
影响因子: 64.5
作者:
Förster, R;Schubel, A;Lipp, M
通讯作者: Lipp, M
DOI: 10.4049/jimmunol.0900275
发表时间: 2009-09-01
影响因子: 4.4
作者:
Martin, Andrea P.;Marinkovic, Tatjana;Lira, Sergio A.
通讯作者: Lira, Sergio A.