| The research interests of my laboratory center
on understanding the molecular events that lead to the determination,
differentiation and survival of sensory neurons/cells. The mammalian
sensory system carries external and internal sensory information
to the central nervous system, where it is processed to coordinate
motor responses. The establishment of these sensory circuits in
the adult depends critically on the generation of distinct neuronal
types and sensory receptors at proper times and positions during
embryogenesis as well as on their maintenance throughout life. Despite
the importance of sensory neurons/cells, however, the molecular
basis of their formation and survival is still poorly understood.
My laboratory employs molecular genetic and bioinformatic approaches
to identify and study transcription factors that are required for
programming development of the retina, inner ear, somatosensory
ganglia, spinal cord, and brain. A major focus of our work is to
develop knockout and transgenic animal models to study roles of
transcription factor genes in normal sensorineural development,
as well as to elucidate how mutations in these genes cause sensorineural
disorders such as blindness and deafness.
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| For complete list: PubMed
Li, S., Misra, K., Matise, M. and Xiang,
M. (2005) Foxn4 acts synergistically with Mash1 to specify
subtype identity of V2 interneurons in the spinal cord. Proc.
Natl. Acad. Sci. USA 102:10688-10693.
Li, S., Mo, Z., Yang, X.,
Price, S. M., Shen, M.M. and Xiang, M. (2004) Foxn4
controls the genesis of amacrine and horizontal cells by retinal
progenitors. Neuron 43:795-807.
Li, S., Qiu, F., Xu, A., Price, S. M., and Xiang, M.
(2004) Barhl1 regulates migration and survival of cerebellar granule
cells by controlling expression of the neurotrophin-3 gene. J.
Neurosci. 24:3104-3114.
Mo, Z., Li, S., Yang, X., and Xiang, M. (2004)
Role of the Barhl2 homeobox gene in the specification of glycinergic
amacrine cells. Development 131:1607-1618.
Li, S., Price, S. M., Cahill, H., Ryugo, D. K., Shen, M. M., and
Xiang, M. (2002) Hearing loss caused by progressive
degeneration of cochlear hair cells in mice deficient for the Barhl1
homeobox gene. Development 129:3523-3532.
Liu, W., Mo, Z., and Xiang,
M. (2001) The Ath5 proneural genes function upstream of
Brn3 POU domain transcription factor genes to promote retinal ganglion
cell development. Proc. Natl. Acad. Sci. USA. 98:1649-1654.
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