Phospholipase A(2) (PLA(2)) is proposed to play a role in the repair of the
ruptured membrane after axotomy. In neonatal rats, we examined the effect
of Group IIA secretory PLA(2) (sPLA(2)-IIA) on axotomy-induced cell death o
f motoneurons. sPLA(2)-IIA significantly induced death of axotomized motone
urons. Indoxam, a specific inhibitor for sPLA(2)-IIA, protected motoneurons
from the sPLA(2)-IIA-induced deterioration. The present study indicated th
at sPLA(2)-IIA possessed neurotoxic effect rather than neuroprotective effe
ct against facial nerve. (C) 2001 Elsevier Science B.V. All rights reserved
.