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  • Title: [NGFI-B/nur77 family involved in T-cell apoptosis].
    Author: Okabe T, Nawata H.
    Journal: Nihon Rinsho; 1996 Jul; 54(7):1768-72. PubMed ID: 8741664.
    Abstract:
    NGFI-B/nur77 is a member of the steroid receptor superfamily. NGFI-B/nur77 and its related genes constitute a family and the NGFI-B/nur77 family consists of three subtypes, named nur77 alpha, nur77 beta, nur77 gamma. We cloned human nur77 beta cDNA, called TINUR. Although NGFI-B/nur77 is essential for TCR-mediated apoptosis in T-cell hybridomas, the reports on nur77 knock-out mice and nur77 dominant negative transgenic mice suggest that there is a functional redundancy among NGFI-B/nur77 family. NGFI-B/nur77 binds to the response element by monomer or heterodimer with retinoid X receptor (RXR). Assuming that 9-cis-retinoic acid (9-cis-RA) inhibits TCR-mediated apoptosis, nur77 may cause apoptosis by monomer in the absence of 9-cis-RA and may inhibit apoptosis by heterodimer with RXR in the presence of 9-cis-RA.
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