PMID: 4886533Apr 21, 1967Paper

Molecular aspects of lens cell differentiation

Science
J Papaconstantinou

Abstract

I have presented a series of observations on macromolecular interactions which occur during the terminal stages of lens cell differentiation. These are summarized in Fig. 2. Other cell types that undergo similar changes are the erythrocyte and skin cells (epidermis) during the process of keratinization. These other cells are also involved in the synthesis of highly specific proteins, and there are indications that molecular alterations similar to those described for the lens may also occur in these cells (26). Thus, elucidation of a specific series of macromolecular initeractions such as those described may provide a basis for the biochemical definition of the terminal stages of cellular differentiation. Differentiation of the reticulocyte, for example, involves inactivation of the nucleus, stabilization of mRNA, and possibly a ribosomal breakdown such as I have described here (26). Furthermore, elucidation of the mechanisms of reactions involving the initiation of tissue-specific protein synthesis and suLbsequent nuclear inactivation, stabilization of mRNA, and breakdown of the ribosomes may provide a basis for defining the mechanisms of terminal cellular differentiation. The lens cell has reached its highest form of cellular ...Continue Reading

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Citations

Apr 15, 1996·Microscopy Research and Technique·J R KuszakH G Brown
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