Lambda light chain revision in the human intestinal IgA response.
Lambda light chain revision in the human intestinal IgA response.
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DOI:
10.4049/jimmunol.181.2.1264
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发表时间:
2008-07-15
期刊:
影响因子:
--
通讯作者:
Spencer J
中科院分区:
文献类型:
--
作者:
Su W;Gordon JN;Barone F;Boursier L;Turnbull W;Mendis S;Dunn-Walters DK;Spencer J
Revision of antibody light chains by secondary rearrangement in mature B cells has the potential to change the specific target of the immune response. Here we show for the first time that light chain revision is normal and widespread in the largest antibody producing population in man; intestinal IgA plasma cells. Biases in the productive and non-productive repertoire of lambda light chains, identification of the circular products of rearrangement that have the characteristic biases of revision and identification of RAG genes and protein all reflect revision during normal intestinal IgA plasma cell development. We saw no evidence of immunoglobulin heavy chain revision probably due to inappropriately orientated recombination signal sequences, and little evidence of kappa chain revision, probably due to locus inactivation by the kappa deleting element. We propose that the lambda light chain locus is available and a principal modifier and diversifier of antibody specificity in intestinal IgA plasma cells.
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DOI:
10.1084/jem.20061918
发表时间:
2007-01-22
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
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通讯作者:
Wilson PC
影响因子:
29.4
作者:
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通讯作者:
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影响因子:
4.4
作者:
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通讯作者:
Jamin, Christophe
影响因子:
20.3
作者:
Meru, N;Jung, A;Niedobitek, G
通讯作者:
Niedobitek, G
影响因子:
4.4
作者:
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通讯作者:
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