Bumwhee Lee

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Six6, a sine oculis homeobox protein, plays a crucial and conserved role in the development of the forebrain and eye. To understand how the expression of Six6 is regulated during embryogenesis, we screened ~250 kb of genomic DNA encompassing the Six6 locus for cis-regulatory elements capable of directing reporter gene expression to sites of Six6(More)
The SRY-related HMG box transcription factor Sox2 plays critical roles throughout embryogenesis. Haploinsufficiency for SOX2 results in human developmental defects including anophthalmia, microphthalmia and septo-optic dysplasia, a congenital forebrain defect. To understand how Sox2 plays a role in neurogenesis, we combined genomic and in vivo transgenic(More)
The mammalian thalamus is an essential diencephalic derivative that plays unique roles in processing and relaying sensory and motor information to and from the cerebral cortex. The profile of transcription factors and lineage tracing experiments revealed a spatiotemporal relationship between diencephalic progenitor domains and discrete differentiated(More)
The thalamus acts as a central integrator for processing and relaying sensory and motor information to and from the cerebral cortex, and the habenula plays pivotal roles in emotive decision making by modulating dopaminergic and serotonergic circuits. These neural compartments are derived from a common developmental progenitor domain, called prosomere 2, in(More)
The sine oculis homeobox protein Six3 plays pivotal roles in the development of the brain and craniofacial structures. In humans, SIX3 haploinsufficiency results in holoprosencephaly, a defect in anterior midline formation. Although much is known about the evolutionarily conserved functions of Six3, the regulatory mechanism responsible for the expression(More)
The mammalian diencephalon is the caudal derivative of the embryonic forebrain. Early events in diencephalic regionalization include its subdivision along the dorsoventral and anteroposterior axes. The prosomeric model by Puelles and Rubenstein (1993) suggests that the alar plate of the posterior diencephalon is partitioned into three different prosomeres(More)
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