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Loss of SDF-1 receptor expression during positive selection in the thymus.
https://repo.qst.go.jp/records/43918
https://repo.qst.go.jp/records/43918747bc61c-2e6e-4535-817d-7f2c1221b1e3
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2005-12-16 | |||||
タイトル | ||||||
タイトル | Loss of SDF-1 receptor expression during positive selection in the thymus. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Suzuki, Gen
× Suzuki, Gen× Nakagawa, Kenichi× Saito, Toshiyuki× Mita, Kazuei× Shirasawa, Takuji× et.al× 鈴木 元× 中川 憲一× 齋藤 俊行× 三田 和英 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | SDF-1 is a member of the CXC chemokines. In contrast to other chemokines that are induced by inflammation, SDF-1 is constitutively produced by stromal cells. In order to investigate the physiological roles of SDF-1, we constructed a fusion protein, SDF-1-Cgamma1, composed from murine SDF-1alpha and the constant region of human IgG. SDF-1-Cgamma1 stained EL-4 T lymphoma cells and the staining was blocked by rhSDF-1beta. The expression levels of SDF-1R altered along with the T cell maturation. Most c-kit+ hematopoietic precursors in fetal liver in gestational day (GD) 14.5 embryo were SDF-1R-, while c-kit+ double-negative (DN) thymocytes in the embryo were positive for SDF-1R. The receptor expression increased along with T cell maturation up to double-positive (DP) cell stage. Interestingly, SDF-1R expression was down-modulated after positive selection; CD69+CD3hi DP and CD3hi single-positive thymocytes were SDF-1R-/lo. Northern blot analysis demonstrated that SDF-1 and CXCR4 mRNAs were abundantly expressed in the thymuses of embryo and adult mice. These results demonstrate that SDF-1R expression is involved in T cell development in the thymus, particularly in positive selection. | |||||
書誌情報 |
International Immunology 巻 10, p. 1049-1056, 発行日 1998 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0953-8178 |