Receptor-mediated immunoglobulin G transport across mucosal barriers in adult life: functional expression of FcRn in the mammalian lung.
Receptor-mediated immunoglobulin G transport across mucosal barriers in adult life: functional expression of FcRn in the mammalian lung.
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DOI:
10.1084/jem.20020400
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发表时间:
2002-08-05
期刊:
影响因子:
--
通讯作者:
Lencer WI
中科院分区:
文献类型:
--
作者:
Spiekermann GM;Finn PW;Ward ES;Dumont J;Dickinson BL;Blumberg RS;Lencer WI
Mucosal secretions of the human gastrointestinal, respiratory, and genital tracts contain the immunoglobulins (Ig)G and secretory IgA (sIgA) that function together in host defense. Exactly how IgG crosses epithelial barriers to function in mucosal immunity remains unknown. Here, we test the idea that the MHC class I–related Fc-receptor, FcRn, transports IgG across the mucosal surface of the human and mouse lung from lumen to serosa. We find that bronchial epithelial cells of the human, nonhuman primate, and mouse, express FcRn in adult-life, and demonstrate FcRn-dependent absorption of a bioactive Fc-fusion protein across the respiratory epithelium of the mouse in vivo. Thus, IgG, like dimeric IgA, can cross epithelial barriers by receptor-mediated transcytosis in adult animals. These data show that mucosal surfaces that express FcRn reabsorb IgG and explain a mechanism by which IgG may act in immune surveillance to retrieve lumenal antigens for processing in the lamina propria or systemically.
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影响因子:
15.3
作者:
Johansen, F E;Pekna, M;Norderhaug, I N;Haneberg, B;Hietala, M A;Krajci, P;Betsholtz, C;Brandtzaeg, P
通讯作者:
Brandtzaeg, P
影响因子:
64.5
作者:
MOSTOV, KE;DEITCHER, DL
通讯作者:
DEITCHER, DL
影响因子:
64.8
作者:
DUNCAN, AR;WOOF, JM;WINTER, G
通讯作者:
WINTER, G
影响因子:
4.4
作者:
Firan, M;Bawdon, R;Ward, ES
通讯作者:
Ward, ES
DOI:
10.1016/0167-4781(94)00213-m
发表时间:
1995-03-14
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
影响因子:
--
作者:
BILL, RM;WINTER, PC;LAPPIN, TRJ
通讯作者:
LAPPIN, TRJ