First Author | Hirata T | Year | 2006 |
Journal | Development | Volume | 133 |
Issue | 8 | Pages | 1433-43 |
PubMed ID | 16540508 | Mgi Jnum | J:107405 |
Mgi Id | MGI:3621093 | Doi | 10.1242/dev.02329 |
Citation | Hirata T, et al. (2006) Zinc-finger gene Fez in the olfactory sensory neurons regulates development of the olfactory bulb non-cell-autonomously. Development 133(8):1433-43 |
abstractText | Fez is a zinc-finger gene encoding a transcriptional repressor that is expressed in the olfactory epithelium, hypothalamus, ventrolateral pallium and prethalamus at mid-gestation. To reveal its function, we generated Fez-deficient mice. The Fez-deficient mice showed several abnormalities in the olfactory system: (1) impaired axonal projection of the olfactory sensory neurons; (2) reduced size of the olfactory bulb; (3) abnormal layer formation in the olfactory bulb; and (4) aberrant rostral migration of the interneuron progenitors. Fez was not expressed in the projection neurons, interneurons or interneuron progenitors. Transgene-mediated expression of Fez in olfactory sensory neurons significantly rescued the abnormalities in olfactory axon projection and in the morphogenesis of the olfactory bulb in Fez-knockout mice. Thus, Fez is cell-autonomously required for the axon termination of olfactory sensory neurons, and Fez non-cell-autonomously controls layer formation and interneuron development in the olfactory bulb. These findings suggest that signals from olfactory sensory neurons contribute to the proper formation of the olfactory bulb. |