Article (Scientific journals)
JAM-C is an apical surface marker for neural stem cells.
Stelzer, Sandra; Worlitzer, Maik M. A.; Bahnassawy, Lamia A et al.
2012In Stem Cells and Development, 21 (5), p. 757-66
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Keywords :
Age Factors; Animals; Asymmetric Cell Division; Biological Markers/metabolism; Blotting, Western; Brain/embryology/growth & development/metabolism; CHO Cells; Cell Adhesion Molecules/genetics/metabolism; Cell Proliferation; Cells, Cultured; Cricetinae; Cricetulus; Embryonic Stem Cells/cytology/metabolism; Gene Expression Regulation, Developmental; Immunoglobulins/genetics/metabolism; Immunohistochemistry; Membrane Proteins/genetics/metabolism; Mice; Microscopy, Confocal; Neural Stem Cells/cytology/metabolism; Reverse Transcriptase Polymerase Chain Reaction; Tight Junctions/metabolism
Abstract :
[en] Junctional adhesion molecule-C (JAM-C) is an adhesive cell surface protein expressed in various cell types. JAM-C localizes to the apically localized tight junctions (TJs) between contacting endothelial and epithelial cells, where it contributes to cell-cell adhesions. Just as those epithelial cells, also neural stem cells are highly polarized along their apical-basal axis. The defining feature of all stem cells, including neural stem cells (NSCs) is their ability to self renew. This self-renewal depends on the tight control of symmetric and asymmetric cell divisions. In NSCs, the decision whether a division is symmetric or asymmetric largely depends on the distribution of the apical membrane and cell fate determinants on the basal pole of the cell. In this study we demonstrate that JAM-C is expressed on neural progenitor cells and neural stem cells in the embryonic as well as the adult mouse brain. Furthermore, we demonstrate that in vivo JAM-C shows enrichment at the apical surface and therefore is asymmetrically distributed during cell divisions. These results define JAM-C as a novel surface marker for neural stem cells.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Stelzer, Sandra
Worlitzer, Maik M. A.
Bahnassawy, Lamia A
Hemmer, Kathrin
Rugani, Kirite
Werthschulte, Inga
Schon, Anna-Lena
Brinkmann, Benjamin F.
Bunk, Eva C.
Palm, Thomas
Ebnet, Klaus
Schwamborn, Jens Christian ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Life Science Research Unit
Language :
Title :
JAM-C is an apical surface marker for neural stem cells.
Publication date :
Journal title :
Stem Cells and Development
Publisher :
Mary Ann Liebert, United States
Volume :
Issue :
Pages :
Peer reviewed :
Peer Reviewed verified by ORBi
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since 21 June 2013


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