Miragall, F and Albiez, P and Bartels, H and deVries, U and Dermietzel, R (1997) Expression of the gap junction protein connexin43 in the subependymal layer and the rostral migratory stream of the mouse: Evidence for an inverse correlation between intensity of connexin43 expression and cell proliferation activity. CELL AND TISSUE RESEARCH, 287 (2). pp. 243-253. ISSN 0302-766X,
Full text not available from this repository.Abstract
Connexins constitute the channel-forming proteins of gap junctions. Gap junctions are considered to be involved in the regulation of cell proliferation. To verify this hypothesis for connexin43, the most abundant connexin in brain tissue, we have analyzed the expression of this gap junction protein in the subependymal layer and the rostral migratory stream of the murine telencephalon. These regions reveal high proliferative activity, even during postnatal stages and in adulthood. Proliferating cells were labeled in vivo by means of the bromodeoxyuridine method and were later processed for double immunocytochemistry by using an antibody to connexin43. The relationship between connexin43 expression and cell proliferation was also determined in primary cell cultures of olfactory bulbs from newborn mice. The intercellular coupling efficiency of cultured bulbar cells was also analyzed by dye-transfer experiments in combination with the bromodeoxyuridine technique. In the rostral migratory stream, connexin43 was upregulated during postnatal development, coinciding with a decrease of BrdU incorporation. Comparative quantification of the intensity of connexin43 immunoreactivity by confocal laser microscopy and of BrdU-labeled cells showed a clear reverse con-elation between connexin43 expression and cell proliferation in the rostral migratory stream during postnatal development. A marked reverse correlation of both parameters was also observed in primary cell cultures from olfactory bulbs at day 6 after seeding.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OLFACTORY SYSTEM; CALCIUM WAVES; MAJOR LOSS; RAT-LIVER; COMMUNICATION; ASTROCYTES; GROWTH; BRAIN; GENES; NEURONS; olfactory system; olfactory bulb; subependymal layer; primary cell cultures; bromodeoxyuridine incorporation; dye coupling; lucifer yellow; mouse (NMRI) |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51049 |
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