The JAK/STAT signal transduction pathway plays a critical role in mammalian
cells, particularly in hematopoiesis and immune responses. Several compone
nts of this pathway have been identified and characterized in Drosophila. M
utational analyses of these components have revealed a number of interestin
g developmental roles, and provide a mechanism to identify other interactin
g molecules and pathways. Hence, the JAK/STAT pathway in Drosophila serves
as an attractive model for in vivo functional analyses of JAK/STAT signalin
g. (C) 2001 John Wiley & Sons, Inc.