Specific migratory dendritic cells rapidly transport antigen from the airways to the thoracic lymph nodes.
Specific migratory dendritic cells rapidly transport antigen from the airways to the thoracic lymph nodes.
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特异性迁移的树突状细胞从气道迅速将抗原转移到胸腔淋巴结。
DOI:
10.1084/jem.193.1.51
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发表时间:
2001-01-01
期刊:
影响因子:
--
通讯作者:
Pauwels RA
中科院分区:
文献类型:
--
作者:
Vermaelen KY;Carro-Muino I;Lambrecht BN;Pauwels RA
Antigen transport from the airway mucosa to the thoracic lymph nodes (TLNs) was studied in vivo by intratracheal instillation of fluorescein isothiocyanate (FITC)-conjugated macromolecules. After instillation, FITC+ cells with stellate morphology were found deep in the TLN T cell area. Using flow cytometry, an FITC signal was exclusively detected in CD11cmed-hi/major histocompatibility complex class II (MHCII)hi cells, representing migratory airway-derived lymph node dendritic cells (AW-LNDCs). No FITC signal accumulated in lymphocytes and in a CD11chiMHCIImed DC group containing a CD8αhi subset (non–airway-derived [NAW]-LNDCs). Sorted AW-LNDCs showed long MHCIIbright cytoplasmic processes and intracytoplasmatic FITC+ granules. The fraction of FITC+ AW-LNDCs peaked after 24 h and had reached baseline by day 7. AW-LNDCs were depleted by 7 d of ganciclovir treatment in thymidine kinase transgenic mice, resulting in a strong reduction of FITC-macromolecule transport into the TLNs. Compared with intrapulmonary DCs, AW-LNDCs had a mature phenotype and upregulated levels of MHCII, B7-2, CD40, and intracellular adhesion molecule (ICAM)-1. In addition, sorted AW-LNDCs from FITC-ovalbumin (OVA)–instilled animals strongly presented OVA to OVA-TCR transgenic T cells. These results validate the unique sentinel role of airway DCs, picking up antigen in the airways and delivering it in an immunogenic form to the T cells in the TLNs.
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影响因子:
20.3
作者:
Merad, M;Fong, L;Engleman, EG
通讯作者:
Engleman, EG
影响因子:
15.9
作者:
Lambrecht, BN;De Veerman, M;Pauwels, RA
通讯作者:
Pauwels, RA
DOI:
10.1084/jem.186.5.665
发表时间:
1997-08-29
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Inaba K;Pack M;Inaba M;Sakuta H;Isdell F;Steinman RM
通讯作者:
Steinman RM
DOI:
10.1084/jem.189.12.1961
发表时间:
1999-06-21
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Linehan SA;Martínez-Pomares L;Stahl PD;Gordon S
通讯作者:
Gordon S
影响因子:
3.7
作者:
Elbert, KJ;Schäfer, UF;Lehr, CM
通讯作者:
Lehr, CM