NDLI: Intrathymic selection of NK1.1+α/β T cell antigen receptor (TCR)+ cells in transgenic mice bearing TCR specific for chicken ovalbumin and restricted to I-Ad

Content Provider	PubMed Central
Author	Iwabuchi, Chikako Iwabuchi, Kazuya Nakagawa, Ken-ichi Takayanagi, Toshiaki Hiroki, Nishihori Tone, Saori Ogasawara, Kazumasa Good, Robert A. Onoé, Kazunori
Copyright Year	1998
Abstract	Generation and negative selection of NK1.1+α/β T cell receptor (TCR)+ thymocytes were analyzed using TCR-transgenic (B10.D2 × DO10)F1 and (C57BL/6 × DO10)F1 mice and Rag-1−/−/DO10 mice, which had been established by breeding and backcrossing between Rag-1−/− and DO10 mice. Almost all T cells from these mice were shown to bear Vα13/Vβ8.2 that is specific for chicken ovalbumin (cOVA) and restricted to I-Ad. A normal proportion of the NK1.1+ Vα13/Vβ8.2+ thymocytes was generated in these mice. However, the actual cell number of both NK1.1+ and NK1.1− thymocytes in I-Ad/d mice (positive selecting background) was larger than that in I-Ab/d mice (negative selecting background). Markedly low but significant proportions of NK1.1+ Vα13/Vβ8.2+ cells were detected in the spleens from I-Ad/d and I-Ab/d mice. It was shown that the splenic NK1.1+ T cells of the I-Ab/d mice were anergized against stimulation through TCR. When (B10.D2 × DO10)F1 and (C57BL/6 × DO10)F1 mice were given cOVA, extensive or intermediate elimination of NK1.1+α/βTCR+ thymocytes was induced in I-Ad/d or I-Ab/d mice, respectively. However, the clonal elimination was not as complete as that seen in the major NK1.1− thymocyte population. The present findings indicate that normal generation of NK1.1+α/βTCR+ thymocytes occurs in the absence of Vα14-Jα281 and that substantial negative selection operates on the NK1.1+α/βTCR+ cells.
Starting Page	8199
File Format	PDF
ISSN	10916490
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	14
Volume Number	95
Language	English
Publisher	The National Academy of Sciences
Publisher Date	1998-07-07
Access Restriction	Open
Rights Holder	The National Academy of Sciences
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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