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Neuroreport. 1999 Jul 13;10(10):2165-7.

In situ localization of p53, bcl-2 and bax mRNAs in rat ocular tissue.

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Department of Anatomy, Dankook University College of Medicine, Chonan, Korea.


We mapped p53, bcl-2 and bax mRNAs, which are known to have correlation with apoptotic cell death, in the rat ocular tissue. p53 mRNA signals were present in several layers of retina, optic nerve, corneal epithelium, ciliary process and posterior surface of the iris. While almost the same pattern as p53 was recognized in the case of bcl-2 mRNA, bax signals were not found in ocular tissue except for ganglion cell layer (GCL). These results suggest that in the normal ocular tissue, p53 and bcl-2 genes play opposing parts in the physiological control of cell survival and death. A p53 mediated tumor-suppressing action might occur through the induction of transcriptional targets other than bax because only in GCL were p53 and bax mRNA expression co-localized.

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