A study of the localization and accumulation of S-phase cells in the retina of newt Pleurodeles waltl after experimental pigment epithelial detachment

A study of the localization and accumulation of S-phase cells in the retina of newt Pleurodeles... This work continues the studies of the proliferative ability of cells in the adult newt retina. The model of experimental detachment of the retina from pigment epithelium and two techniques to saturate the ocular tissues in vivo with precursors of DNA synthesis were used: (1) the method of repeated [3H]-thymidine labeling and subsequent autoradiographic analysis of semithin sections and (2) an original method for continuous labeling of thymidine analog bromodeoxyuridine and subsequent immunochemical detection. The data obtained confirm and extend our previous data on the localization of DNA-synthesizing cells in the neural retina and expose the pattern of S-phase cell accumulation after retinal detachment for each proliferation-competent cell population. In addition to cells in the growth zone of the retina, Muller glia, microglia, and minor cell population in the vitreal part of interneurons, DNA-synthesizing cells included astrocytes of the optic nerve and cells of its vascular network. Four weeks after detachment, the number of S-phase cells in the growth zone could reach 15–20%, while the above-mentioned DNA-synthesizing cells in the differentiated retina have low reproductive rate and could produce only one generation within the same period. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

A study of the localization and accumulation of S-phase cells in the retina of newt Pleurodeles waltl after experimental pigment epithelial detachment

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2008 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360408020082
Publisher site
See Article on Publisher Site

Abstract

This work continues the studies of the proliferative ability of cells in the adult newt retina. The model of experimental detachment of the retina from pigment epithelium and two techniques to saturate the ocular tissues in vivo with precursors of DNA synthesis were used: (1) the method of repeated [3H]-thymidine labeling and subsequent autoradiographic analysis of semithin sections and (2) an original method for continuous labeling of thymidine analog bromodeoxyuridine and subsequent immunochemical detection. The data obtained confirm and extend our previous data on the localization of DNA-synthesizing cells in the neural retina and expose the pattern of S-phase cell accumulation after retinal detachment for each proliferation-competent cell population. In addition to cells in the growth zone of the retina, Muller glia, microglia, and minor cell population in the vitreal part of interneurons, DNA-synthesizing cells included astrocytes of the optic nerve and cells of its vascular network. Four weeks after detachment, the number of S-phase cells in the growth zone could reach 15–20%, while the above-mentioned DNA-synthesizing cells in the differentiated retina have low reproductive rate and could produce only one generation within the same period.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Mar 25, 2011

References

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