The pericyte and stromal cell marker CD248 (endosialin) is required for efficient lymph node expansion.

The pericyte and stromal cell marker CD248 (endosialin) is required for efficient lymph node expansion.
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DOI:
10.1002/eji.200939877
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发表时间:
2010-07
影响因子:
5.4
通讯作者:
Buckley, Christopher D.
Buckley, Christopher D.
中科院分区:
医学3区
文献类型:
--
作者:
Lax, Sian;Hardie, Debbie L.;Wilson, Amy;Douglas, Mike R.;Anderson, Graham;Huso, David;Isacke, Clare M.;Buckley, Christopher D.

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CD 248是一种细胞表面受体,在发育过程中特异性识别成纤维细胞和周细胞,并与癌症和炎症相关。然而,其功能定义不清,其在淋巴器官中的作用尚未研究。在这里,我们使用(4-羟基-3-硝基苯基)乙酰鸡γ-球蛋白免疫和缺乏CD 248的小鼠来研究CD 248是否调节腘淋巴结(pLN)的扩增和随后的免疫应答。我们已经发现,CD 248是完全pLN扩增所需的,但不是(4-羟基-3-硝基苯基)乙酰鸡γ-球蛋白免疫后B和T细胞区室化或抗体产生的协调所需的。在体外,我们表明,CD 248在人MG 63基质细胞和小鼠胚胎成纤维细胞中的表达导致促增殖和促迁移表型。这与在pLN扩增期间在体内观察到的增殖的CD 248+群体相关。总之,这些数据突出了CD 248在适应性免疫应答期间次级淋巴器官重塑中的作用。
CD248 is a cell surface receptor that specifically identifies fibroblasts and pericytes during development and in association with cancer and inflammation. However, its function is poorly defined and its role in lymphoid organs not studied. Here, we used (4-hydroxy-3-nitrophenyl)acetyl chicken γ-globulin immunisation and mice lacking CD248 to study whether CD248 modulates popliteal LN (pLN) expansion and subsequent immune responses. We have found that CD248 is required for complete pLN expansion but not for co-ordination of B and T cell compartmentalisation or antibody production following (4-hydroxy-3-nitrophenyl)acetyl chicken γ-globulin immunisation. In vitro, we show that CD248 expression in human MG63 stromal cells and mouse embryonic fibroblasts leads to a pro-proliferative and pro-migratory phenotype. This correlates with a proliferating CD248+ population observed in vivo during pLN expansion. Taken together, these data highlight a role for CD248 in secondary lymphoid organ remodelling during adaptive immune responses.
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