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Neuroscience 2005 Abstract

Presentation Number: 140.12
Abstract Title: Two distinct domains of the telencephalic choroid plexus epithelium.
Authors: Currle, D. S.*1 ; Cheng, X.1 ; Hsu, C.1 ; Monuki, E. S.1
1Developmental and Cell Biology, UC Irvine, Irvine, CA

Primary Theme and Topics Development
- Neurogenesis and Gliogenesis
-- Neural induction and patterning
Secondary Theme and Topics Development<br />- Evolution of Development
Session: 140. Neurogenesis and Pattern in the Cerebral Cortex, Striatum, and Thalamus
Poster
Presentation Time: Sunday, November 13, 2005 11:00 AM-12:00 PM
Location: Washington Convention Center - Hall A-C, Board # B22
Keywords: Roof Plate, Bmp12, patterning, forebrain
The choroid plexus (CP) secretes the cerebrospinal fluid (CSF) that fills the ventricles of the brain and bathes the central nervous system (CNS), but little is known about the development of this important tissue. CP forms in the ventricles at or near the embryonic dorsal midline (DM). We have previously shown DM-CP lineage relationships using Gdf7 (Bmp12) transgenic mouse embryos to fate map DM cells (Monuki et al., SFN abstract, 2004). We further analyzed the contribution of DM cells to the telencephalic CP epithelium (tCPe) and discovered that Gdf7 cell lineages are found in the small anterior domain of the tCPe, but not in its large posterior domain. In addition, we studied patterns of apoptosis in the anterior and posterior tCPe domains by TUNEL. At both E10.5 and E11.5, significant apoptosis was detectable in the anterior tCPe, but not in the posterior tCPe domain. Like the Gdf7 fate map, apoptosis studies identified an inapparent boundary between anterior and posterior tCPe domains at roughly the same rostrocaudal level as the di-telencephalic midline boundary. Thus, anterior and posterior tCPe domains are distinguished by their lineage relationships and patterns of apoptosis, and are separated by a “cryptic” boundary similar to those described recently in the hindbrain CPe (Awatramani et al., 2003). Interestingly, anterior and posterior domains within human tCPe, with features similar to those described in our study, have been described in a classic monograph (Bailey, 1915), suggesting a common tCPe substructure that is likely to be shared among mammals.
Supported by NIH/NIMH, March of Dimes, Whitehall Foundation, NIH/NINDS Training Grant

Sample Citation:

[Authors]. [Abstract Title]. Program No. XXX.XX. 2005 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2005. Online.

Copyright © 2005-2025 Society for Neuroscience; all rights reserved. Permission to republish any abstract or part of any abstract in any form must be obtained in writing by SfN office prior to publication.

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