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Updated: Jun 14, 2026

Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex
Published on: August 2, 2021
Critical function of death-associated protein 3 in T cell receptor-mediated apoptosis induction
Noriko Tosa1, Atsushi Iwai, Taku Tanaka
1Institute for Animal Experimentation, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido 060-8638, Japan.
Abstract:
Death-associated protein 3 (DAP3) is crucial for promoting apoptosis induced by various stimulations. This report demonstrates that DAP3 is also important for T cell receptor (TCR)-mediated apoptosis induction in immature thymocytes. Enforced expression of DAP3 accelerated the negative selection in developing thymocytes, using the reaggregate thymus organ culture system. In addition, expression of DAP3 accelerated TCR-mediated apoptosis induction in DO11.10 cells. We also demonstrated that DAP3 translocates into the nucleus during TCR-mediated apoptosis in a Nur77 dependent manner. It is concluded that DAP3 is critical for TCR-mediated induction of apoptosis at the downstream of Nur77.
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