[New class of RNA and centrosomal hypothesis of cell aging].

Abstract

The recent discovery of a new class of RNA in a centrosome may be an indirect evidence of the centrosomal hypothesis of cellular ageing and differentiation. The presence of a reverse transcriptase domain in this class of RNA, together with its specificity to this organelle, makes the centrosome a place of information memorizing and reproduction. This feature of centrosome is one of the main points of centrosomal hypothesis of cell aging and differentiation.