Proceedings of the National Academy of Sciences of the United States of America

About the PNAS Member Editor
Name Mason, Carol A.
Location Columbia University
Primary Field Cellular and Molecular Neuroscience
Secondary Field Systems Neuroscience
 Election Citation
Mason has made fundamental contributions to our understanding of binocular map formation in the mammalian brain. In pioneering work, Mason applied video and electron microscopy to monitor the dynamics and pathfinding of retinal axons at the optic chiasm. Mason has also defined key signaling systems that control midline axonal crossing.
 Research Interests
Carol Mason investigates visual system development, namely the cellular and molecular features of axon guidance, axon-target interactions, and cell specification during patterning of the circuit for binocular vision. Her work on the visual system, and previously on the cerebellum, utilizes a suite of traditional and novel pathway tracing, correlated light and electron microscopic analysis, live imaging, culture assays, and gene profiling. Over the past two decades, her lab?s work has revealed a molecular program of transcription and axon guidance factors that specify the ipsilateral and contralateral retinal ganglion cell (RGC) pathways through the optic chiasm and to thalamic targets in the mouse brain. They identified retinal axon growth cone guidance receptor systems that direct these two projections, and transcription factors that regulate ipsilateral and contralateral RGC subtype identity, and the pre-target axon organization and developmental refinement of the retinogeniculate pathway. They also interrogate how axon targeting and cell specification go awry in the albino visual system, in which the lack of melanin leads to a reduction of the ipsilateral projection. For her work on the developing visual system, Mason was a co-recipient of the 2016 Antonio Champalimaud Vision award.

 
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