Static and dynamic components synergize to form a stable survival niche for bone marrow plasma cells
Static and dynamic components synergize to form a stable survival niche for bone marrow plasma cells
复制标题
静态和动态成分协同作用,形成骨髓浆细胞稳定的生存生态位
DOI:
10.1002/eji.201344313
复制
发表时间:
2014
影响因子:
5.4
通讯作者:
A. E. Hauser
中科院分区:
文献类型:
--
作者:
Zehentmeier;K. Roth;Z. Cseresnyes;O. Sercan;K. Horn;R. A. Niesner;H. D. Chang;A. Radbruch;A. E. Hauser
In the bone marrow (BM), memory plasma cells (PCs) survive for long time periods in dedicated microenvironmental survival niches, resting in terms of proliferation. Several cell types, such as eosinophils and reticular stromal cells, have been reported to contribute to the survival niche of memory PCs. However, until now it has not been demonstrated whether the niche is formed by a fixed cellular microenvironment. By intravital microscopy, we provide for the first time evidence that the direct contacts formed between PCs and reticular stromal cells are stable in vivo, and thus the PCs are sessile in their niches. The majority (∼80%) of PCs directly contact reticular stromal cells in a non‐random fashion. The mesenchymal reticular stromal cells in contact with memory PCs are not proliferating. On the other hand, we show here that eosinophils in the vicinity of long‐lived PCs are vigorously proliferating cells and represent a dynamic component of the survival niche. In contrast, if eosinophils are depleted by irradiation, newly generated eosinophils localize in the vicinity of radiation‐resistant PCs and the stromal cells. These results suggest that memory PC niches may provide attraction for eosinophils to maintain stability with fluctuating yet essential accessory cells.
登录
查看更多内容
影响因子:
20.3
作者:
Koehler, Anja;De Filippo, Katia;Gunzer, Matthias
通讯作者:
Gunzer, Matthias
影响因子:
32.4
作者:
Fooksman DR;Schwickert TA;Victora GD;Dustin ML;Nussenzweig MC;Skokos D
通讯作者:
Skokos D
影响因子:
20.3
作者:
de Latour, Regis Peffault;Visconte, Valeria;Young, Neal S.
通讯作者:
Young, Neal S.
影响因子:
4.4
作者:
Belnoue, Elodie;Tougne, Chantal;Siegrist, Claire-Anne
通讯作者:
Siegrist, Claire-Anne
影响因子:
158.5
作者:
Amanna, Ian J.;Carlson, Nichole E.;Slifka, Mark K.
通讯作者:
Slifka, Mark K.