Direct identification of rat iNKT cells reveals remarkable similarities to human iNKT cells and a profound deficiency in LEW rats.
Direct identification of rat iNKT cells reveals remarkable similarities to human iNKT cells and a profound deficiency in LEW rats.
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对大鼠 iNKT 细胞的直接鉴定揭示了与人类 iNKT 细胞的显着相似性以及 LEW 大鼠中的严重缺陷。
DOI：
10.1002/eji.201242565
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发表时间：
2013
影响因子：
5.4
通讯作者：
Herrmann,Thomas
中科院分区：
文献类型：
--
作者：
Monzon-Casanova,Elisa;Paletta,Daniel;Starick,Lisa;Müller,Ingrid;Sant'Angelo,DerekB;Pyz,Elwira;Herrmann,Thomas
iNKT cells are a particular lymphocyte population with potent immunomodulatory capa‐city; by promoting or suppressing immune responses against infections, tumors, and autoimmunity, iNKT cells are a promising target for immunotherapy. The hallmark of iNKT cells is the expression of a semiinvariant TCR (with an invariant α‐chain comprisingAV14andAJ18gene segments), which recognizes glycolipids presented by CD1d. Here, we identified iNKT cells for the first time in the rat using rat CD1d‐dimers and PLZF staining. Importantly, in terms of frequencies (1.05% ± 0.52 SD of all intrahepatic αβ T cells), coreceptor expression and in vitro expansion features, iNKT cells from F344 inbred rats more closely resemble human iNKT cells than their mouse counterparts. In contrast, in LEW inbred rats, which are often used as models for organ‐specific autoimmune diseases, iNKT cell numbers are near or below the detection limit. Interestingly, the usage of members of the ratAV14gene family differed between F344 and LEW inbred rats. In conclusion, the similarities between F344 rat and human iNKT cells and the nearly absent iNKT cells in LEW rats make the rat a promising animal model for the study of iNKT cell‐based therapies and of iNKT‐cell biology.
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