کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1935682 | 1050672 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An ENU-induced mutation in the lymphotoxin α gene impairs organogenesis of lymphoid tissues in C57BL/6 mice
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
The TNF family is critical for development of lymphoid organs and plays significant roles in regulation of innate and adoptive immune responses. Here, we describe a novel N-ethyl-N-nitrosourea (ENU)-induced mutant strain, HLB382, with a point mutation in the Lta gene, which encodes lymphotoxin (LT) α, a member of the TNF family. Mutant mice had no lymph nodes and no Peyer's patches. Microscopically, the spleens had disordered follicles and no germinal centers or discernible marginal zones (MZ). While the development of T cells and follicular B cells was normal, the numbers of NK and MZ B cells were significantly reduced. Interestingly, the numbers of peritoneal B1b cells were significantly increased. Genomic DNA sequences revealed a single base pair insertion in the coding region of Lta resulting in a frame shift and a premature stop codon. This new strain provides opportunities for understanding the full range of Lta gene function on a pure C57BL/6 background.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 370, Issue 3, 6 June 2008, Pages 461-467
Journal: Biochemical and Biophysical Research Communications - Volume 370, Issue 3, 6 June 2008, Pages 461-467
نویسندگان
Hongsheng Wang, Jianxun Feng, Chenfeng Qi, Herbert C. III,