Abstract:
:Neurofibromatosis type 1 (NF1) is a prevalent genetic disorder that affects growth properties of neural-crest-derived cell populations. In addition, approximately one-half of NF1 patients exhibit learning disabilities. To characterize NF1 function both in vitro and in vivo, we circumvent the embryonic lethality of NF1 null mouse embryos by generating a conditional mutation in the NF1 gene using Cre/loxP technology. Introduction of a Synapsin I promoter driven Cre transgenic mouse strain into the conditional NF1 background has ablated NF1 function in most differentiated neuronal populations. These mice have abnormal development of the cerebral cortex, which suggests that NF1 has an indispensable role in this aspect of CNS development. Furthermore, although they are tumor free, these mice display extensive astrogliosis in the absence of conspicuous neurodegeneration or microgliosis. These results indicate that NF1-deficient neurons are capable of inducing reactive astrogliosis via a non-cell autonomous mechanism.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Zhu Y,Romero MI,Ghosh P,Ye Z,Charnay P,Rushing EJ,Marth JD,Parada LFdoi
10.1101/gad.862101subject
Has Abstractpub_date
2001-04-01 00:00:00pages
859-76issue
7eissn
0890-9369issn
1549-5477journal_volume
15pub_type
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