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Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis

The fate of mesenteric lymph node lymphoblasts labeled with either [125I]iododeoxyuridine or [3H]thymidine can be studied after intravenous transfer into syngeneic mice both by measurement of radioactivity in various organs and by combined immunofluorescence and autoradiography of recipient tissues....

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Detalles Bibliográficos
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1977
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2180636/
https://www.ncbi.nlm.nih.gov/pubmed/300777
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description The fate of mesenteric lymph node lymphoblasts labeled with either [125I]iododeoxyuridine or [3H]thymidine can be studied after intravenous transfer into syngeneic mice both by measurement of radioactivity in various organs and by combined immunofluorescence and autoradiography of recipient tissues. Many of the lymphoblasts home to the lamina propria of the small intestine within hours of transfer; of these, many visibly secrete IgA. To determine whether the cells that will ultimately secrete IgA are already committed to IgA synthesis before their arrival in the gut, mesenteric lymph node cell populations were treated with various class-specific antisera to mouse immunoglobulins before transfer. Treatment with antiserum to IgA, plus complement, reduced the fraction of injected label recovered from the recipients' intestines, and also reduced the proportion of donor (labeled) cells containing IgA. We conclude that mesenteric lymph nodes are probably the principal source of IgA-secreting plasma cells in the lamina propria of the gut, and that the cells become committed to IgA synthesis and develop cell surface IgA before emigrating. This IgA is apparently synthesized by the cells that bear it since it is not removed by extensive rinsing at 37 degrees C, a maneuver that elutes passively adsorbed immunoglobulin.
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spelling pubmed-21806362008-04-17 Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis J Exp Med Articles The fate of mesenteric lymph node lymphoblasts labeled with either [125I]iododeoxyuridine or [3H]thymidine can be studied after intravenous transfer into syngeneic mice both by measurement of radioactivity in various organs and by combined immunofluorescence and autoradiography of recipient tissues. Many of the lymphoblasts home to the lamina propria of the small intestine within hours of transfer; of these, many visibly secrete IgA. To determine whether the cells that will ultimately secrete IgA are already committed to IgA synthesis before their arrival in the gut, mesenteric lymph node cell populations were treated with various class-specific antisera to mouse immunoglobulins before transfer. Treatment with antiserum to IgA, plus complement, reduced the fraction of injected label recovered from the recipients' intestines, and also reduced the proportion of donor (labeled) cells containing IgA. We conclude that mesenteric lymph nodes are probably the principal source of IgA-secreting plasma cells in the lamina propria of the gut, and that the cells become committed to IgA synthesis and develop cell surface IgA before emigrating. This IgA is apparently synthesized by the cells that bear it since it is not removed by extensive rinsing at 37 degrees C, a maneuver that elutes passively adsorbed immunoglobulin. The Rockefeller University Press 1977-04-01 /pmc/articles/PMC2180636/ /pubmed/300777 Text en This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Articles
Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title_full Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title_fullStr Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title_full_unstemmed Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title_short Mesenteric lymph node B lymphoblasts which home to the small intestine are precommitted to IgA synthesis
title_sort mesenteric lymph node b lymphoblasts which home to the small intestine are precommitted to iga synthesis
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2180636/
https://www.ncbi.nlm.nih.gov/pubmed/300777