...; Maria K. Lehtinen; Vitezslav Bryja ABSTRACT The choroid plexus (ChP) produces cerebrospinal fluid and forms an essential brain barrier. ChP tissues form in each brain ventricle, each one adopting a distinct shape, but remarkably little is known about the mechanisms underlying ChP development. Here, we...

...Filippo Casoni; Laura Croci; Francesca Vincenti; Paola Podini; Michela Riba; Luca Massimino; Ottavio Cremona; G. Giacomo Consalez ABSTRACT The choroid plexus (ChP) is a secretory tissue that produces cerebrospinal fluid (CSF) secreted into the ventricular system. It is a monolayer of secretory...

... a negative influence on choroid plexus differentiation. Thus, our findings identify RA as a novel regulator of chick forebrain RP development. * Author for correspondence ( [email protected] ) Competing interests The authors declare no competing or financial interests. 21 1 2015 5 2...

... in driving the continual growth and expansion of the hindbrain choroid plexus throughout development. * Author for correspondence (e-mail: [email protected] ) 18 5 2009 © 2009. 2009 Shh Cerebrospinal fluid Choroid plexus Epithelium Gli1 Choroid plexuses (ChPs...

...Itaru Imayoshi; Tomomi Shimogori; Toshiyuki Ohtsuka; Ryoichiro Kageyama The choroid plexus in the brain is unique because it is a non-neural secretory tissue. It secretes the cerebrospinal fluid and functions as a blood-brain barrier, but the precise mechanism of specification of this non-neural...

...-hemispheric HPE. * Author for correspondence (e-mail: [email protected] ) 29 8 2007 © 2007. 2007 Telencephalon Dorsal midline Choroid plexus Cortical hem Holoprosencephaly BMP SHH The cerebral hemispheres, the seat of higher cognitive function in mammals,develop from...

.... A., Chodobski, A. and Szmydynger-Chodobska, J. ( 2005 ). The choroid plexus-cerebrospinal fluid system: from development to aging. Curr. Top. Dev. Biol. 71 , 1 -52. Segal, M. B. ( 2000 ). The choroid plexuses and the barriers between the blood and the cerebrospinal fluid. Cell. Mol. Neurobiol. 20...

... results suggest that loss of cilia leads to altered function of the choroid plexus epithelum, as evidenced by elevated intracellular cAMP levels and increased chloride concentration in the CSF. These data suggest that cilia function is necessary for regulating ion transport and CSF production, as well...

... and possibly restricting the rostral extension of the presumptive choroid plexus territory that depends on BMP signaling. White Leghorn chick embryos (Morizeau, France) and Japanese quail embryos(La Caille de Chanteloup, France) were staged according to Hamburger and Hamilton ( Hamburger and Hamilton...

..., generated from the dorsal neuroepithelium, is severely compromised. The choroid plexus, subcommissural organ and pineal gland either fail to form or are atrophic. These defects are preceded by an increase in cell death at the dorsal midline. Comparison with the phenotype of Wnt1 sw/sw ( swaying ) mutants...

..., Wnt2b , are expressed only at the medial edge of the telencephalon, defining the hem of the cerebral cortex. The Wnt -rich cortical hem is a transient, neuron-containing, neuroepithelial structure that forms a boundary between the hippocampus and the telencephalic choroid plexus epithelium (CPe...

... brain (virtually no expression). Adult choroid plexus, a brain tissue in which Igf2 is expressed from both alleles and H19 is not expressed, represents an apparent loss of imprinting. Here, both Igf2 and H19 adopt a paternal type methylation pattern on both parental chromosomes. Analysis of early...

... plexus regions and regions that would normally form nervous tissue in vivo. All tissues were plated onto a basement membrane substratum for culture in vitro. It was found that explants of neural ectoderm that would normally form choroid plexus in vivo, readily differentiated to form choroid plexus-like...

... including cells of the dorsal midline of the neural tube. This expression pattern persisted throughout the embryonic time span studied. At E11.5, expression of Hox-7 became obvious in the neuroepithelium of the forming tela choroida and the telencephelii in areas destined to form the choroid plexus before...