Article (Scientific journals)
Expression of the green fluorescent protein in the oligodendrocyte lineage: a transgenic mouse for developmental and physiological studies.
Yuan, Xiaoqing; Chittajallu, Ramesh; Belachew, Shibeshih et al.
2002In Journal of Neuroscience Research, 70 (4), p. 529-45
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Keywords :
2',3'-Cyclic-Nucleotide Phosphodiesterases/genetics; Animals; Brain/cytology/embryology/metabolism; Cell Division/drug effects; Cell Lineage/physiology; Cells, Cultured; Flow Cytometry; Green Fluorescent Proteins; Immunohistochemistry; Luminescent Proteins/biosynthesis/genetics; Mice; Mice, Transgenic; Models, Animal; Oligodendroglia/cytology/drug effects/metabolism; Patch-Clamp Techniques; Peripheral Nervous System/cytology/metabolism; Potassium Channel Blockers/pharmacology; Potassium Channels/drug effects/metabolism; Promoter Regions, Genetic; Schwann Cells/cytology/metabolism; Stem Cells/cytology/drug effects/metabolism
Abstract :
[en] We generated a transgenic mouse expressing the enhanced green fluorescent protein (EGFP) under the control of the 2'-3'-cyclic nucleotide 3'-phosphodiesterase (CNP) promoter. EGFP(+) cells were visualized in live tissue throughout embryonic and postnatal development. Immunohistochemical analysis in brain tissue and in sciatic nerve demonstrated that EGFP expression was restricted to cells of the oligodendrocyte and Schwann cell lineages. EGFP was also strongly expressed in "adult" oligodendrocyte progenitors (OPs) and in gray matter oligodendrocytes. Fluorescence-activated cell sorting allowed high-yield purification of EGFP(+) oligodendrocyte-lineage cells from transgenic brains. Electrophysiological patch clamp recordings of EGFP(+) cells in situ demonstrated that OP cells displayed large outward tetraethylammonium (TEA)-sensitive K(+) currents and very small inward currents, whereas mature oligodendrocytes were characterized by expression of large inward currents and small outward K(+) currents. The proliferation rate of EGFP(+) cells in developing white matter decreased with the age of the animals and was strongly inhibited by TEA. Oligodendrocyte development and physiology can be studied in live tissue of CNP-EGFP transgenic mice, which represent a source of pure EGFP(+) oligodendrocyte-lineage cells throughout development.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Yuan, Xiaoqing
Chittajallu, Ramesh
Belachew, Shibeshih ;  Université de Liège - ULiège > Département des sciences cliniques > Neurologie - CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc.
Anderson, Stacie
McBain, Chris J
Gallo, Vittorio
Language :
English
Title :
Expression of the green fluorescent protein in the oligodendrocyte lineage: a transgenic mouse for developmental and physiological studies.
Publication date :
2002
Journal title :
Journal of Neuroscience Research
ISSN :
0360-4012
eISSN :
1097-4547
Publisher :
Wiley Interscience, New York, United States - New York
Volume :
70
Issue :
4
Pages :
529-45
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 January 2009

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