کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10927105 | 1092387 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dual isotype expressing B cells [κ(+)/λ(+)] arise during the ontogeny of B cells in the bone marrow of normal nontransgenic mice
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dual isotype expressing B cells [κ(+)/λ(+)] arise during the ontogeny of B cells in the bone marrow of normal nontransgenic mice Dual isotype expressing B cells [κ(+)/λ(+)] arise during the ontogeny of B cells in the bone marrow of normal nontransgenic mice](/preview/png/10927105.png)
چکیده انگلیسی
Central to the clonal selection theory is the tenet that a single B cell expresses a single receptor with a single specificity. Previously, based on our work in anti-phosphocholine transgenic mouse models, we suggested that B cells escaped clonal deletion by coexpression of more than one receptor on their cell surface. We argued that “receptor dilution” was necessary when: (i) the expressed immunoglobulin receptor is essential for immune protection against pathogens and (ii) this protective receptor is autoreactive and would be clonally deleted, leaving a hole in the B cell repertoire. Here, we demonstrate that dual isotype expressing B cells arise during the normal ontogeny of B cells in the bone marrow and populate both the spleen and peritoneal cavity of nontransgenic mice. Furthermore, single cell analysis of the expressed immunoglobulin light chains suggests that receptor editing may play a role in the generation of a significant fraction of dual isotype expressing B cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cellular Immunology - Volume 238, Issue 1, November 2005, Pages 38-48
Journal: Cellular Immunology - Volume 238, Issue 1, November 2005, Pages 38-48
نویسندگان
Louis J. Rezanka, James J. Kenny, Dan L. Longo,