Cutting edge: Primary and secondary effects of CD19 deficiency on cells of the marginal zone.

Cutting edge: Primary and secondary effects of CD19 deficiency on cells of the marginal zone.
复制标题

DOI:
10.4049/jimmunol.0804295
复制
发表时间:
2009-06-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Carter RH
Carter RH
中科院分区:
其他
文献类型:
--
作者:
You Y;Zhao H;Wang Y;Carter RH

文献摘要

参考文献

被引文献

相似文献

边缘区(MZ)B细胞在CD 19-/-小鼠中不存在。可能的原因包括B细胞的内在缺陷和/或由于缺乏CD 19的小鼠中B细胞分化的变化而导致的外在MZ微环境的继发缺陷。MZ中的细胞还包括MZ巨噬细胞(MZM)和MZ树突状细胞(DC)。虽然CD 19仅在B细胞上表达,但在CD 19-/-小鼠中不存在SIGN-R1+ MZM,并且CD 11 c + MZ DC分布异常。从正常小鼠连续转移的B细胞能够在CD 19-/-小鼠中重建MZ B细胞。相反,CD 19-/- B细胞不能进入正常小鼠的MZ。此外,在CD 19-/-小鼠中MZ B细胞重建后,MZM分布和MZ DC分布恢复。因此,MZ B细胞是MZM分化和MZ DC定位所需的,但CD 19-/-小鼠中MZ B细胞的缺乏是由内在B细胞信号传导的缺陷引起的。
Marginal zone (MZ) B cells are absent in CD19-/- mice. Possible causes include an intrinsic defect in B cells and/or a secondary defect in the extrinsic MZ microenvironment as a result of changes in B cell differentiation in mice lacking CD19. Cells in the MZ also include MZ macrophages (MZM) and MZ dendritic cells (DC). Although CD19 is only expressed on B cells, SIGN-R1+ MZM are absent and CD11c+ MZ DC distribution is abnormal in CD19-/- mice. Adoptively transferred B cells from normal mice are able to reconstitute MZ B cells in CD19-/- mice. In contrast, CD19-/- B cells could not enter the MZ of the normal mice. Furthermore, MZM distribution and MZ DC distribution are restored following MZ B cell reconstitution in CD19-/- mice. Thus, MZ B cells are required for MZM differentiation and MZ DC localization, but the deficiency of MZ B cells in CD19-/- mice is caused by a defect of intrinsic B cell signaling.
DOI: 10.1038/376352a0
发表时间: 1995-07-27
期刊: NATURE
影响因子: 64.8
作者:
RICKERT, RC;RAJEWSKY, K;ROES, J
通讯作者: ROES, J
DOI: 10.1016/s0074-7696(06)50005-1
发表时间: 2006
期刊: International review of cytology
影响因子: --
作者:
Kraal G;Mebius R
通讯作者: Mebius R
DOI: 10.1128/iai.00422-07
发表时间: 2007-07-01
影响因子: 3.1
作者:
Belperron, Alexia A.;Dailey, Catherine M.;Bockenstedt, Linda K.
通讯作者: Bockenstedt, Linda K.
DOI: 10.1046/j.1365-3083.2001.00824.x
发表时间: 2001-01-01
影响因子: 3.7
作者:
Gärdby, E;Chen, XJ;Lycke, NY
通讯作者: Lycke, NY
DOI: 10.1016/s1074-7613(02)00426-0
发表时间: 2002-10-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Wang, Y;Brooks, SR;Carter, RH
通讯作者: Carter, RH