PT  - JOURNAL ARTICLE
AU  - Ugolini, Gabriele
AU  - Raoul, Cédric
AU  - Ferri, Anna
AU  - Haenggeli, Christine
AU  - Yamamoto, Yoichi
AU  - Salaün, Danièle
AU  - Henderson, Christopher E.
AU  - Kato, Ann C.
AU  - Pettmann, Brigitte
AU  - Hueber, Anne-Odile
TI  - Fas/Tumor Necrosis Factor Receptor Death Signaling Is Required for Axotomy-Induced Death of Motoneurons <em>In Vivo</em>
AID  - 10.1523/JNEUROSCI.23-24-08526.2003
DP  - 2003 Sep 17
TA  - The Journal of Neuroscience
PG  - 8526--8531
VI  - 23
IP  - 24
4099  - http://www.jneurosci.org/content/23/24/8526.short
4100  - http://www.jneurosci.org/content/23/24/8526.full
SO  - J. Neurosci.2003 Sep 17; 23
AB  - Activation of the Fas death receptor leads to the death of motoneurons in culture. To investigate the role of Fas in programmed cell death and pathological situations, we used several mutant mice deficient for Fas signaling and made a novel transgenic FADD-DN (FAS-associated death domain-dominant-negative) strain. In vitro, motoneurons from all of these mice were found to be resistant to Fas activation and to show a delay in trophic deprivation-induced death. During normal development in vivo, no changes in motoneuron survival were observed. However, the number of surviving motoneurons was twofold higher in animals deficient for Fas signaling after facial nerve transection in neonatal mice. These results reveal a novel role for Fas as a trigger of axotomy-induced death and suggest that the Fas pathway may be activated in pathological degeneration of motoneurons.