Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

The Cellular Memory Disc of Reprogrammed Cells

(2013) The Cellular Memory Disc of Reprogrammed Cells. Stem Cell Reviews and Reports.

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The crucial facts underlying the low efficiency of cellular reprogramming are poorly understood. Cellular reprogramming occurs in nuclear transfer, induced pluripotent stem cell (iPSC) formation, cell fusion, and lineage-switching experiments. Despite these advances, there are three fundamental problems to be addressed: (1) the majority of cells cannot be reprogrammed, (2) the efficiency of reprogramming cells is usually low, and (3) the reprogrammed cells developed from a patient's own cells activate immune responses. These shortcomings present major obstacles for using reprogramming approaches in customised cell therapy. In this Perspective, the author synthesises past and present observations in the field of cellular reprogramming to propose a theoretical picture of the cellular memory disc. The current hypothesis is that all cells undergo an endogenous and exogenous holographic memorisation such that parts of the cellular memory dramatically decrease the efficiency of reprogramming cells, act like a barrier against reprogramming in the majority of cells, and activate immune responses. Accordingly, the focus of this review is mainly to describe the cellular memory disc (CMD). Based on the present theory, cellular memory includes three parts: a reprogramming-resistance memory (RRM), a switch-promoting memory (SPM) and a culture-induced memory (CIM), which arises genetically, epigenetically and non-genetically, respectively, and affect cellular behaviours. © 2013 Springer Science+Business Media New York.

Item Type: Article
Keywords: cell differentiation; cell lineage; cell nucleus transplantation; cytology; genetic epigenesis; human; immunological memory; immunology; physiology; pluripotent stem cell; review, Cell Differentiation; Cell Lineage; Epigenesis, Genetic; Humans; Immunologic Memory; Induced Pluripotent Stem Cells; Nuclear Transfer Techniques
Page Range: pp. 190-209
Journal or Publication Title: Stem Cell Reviews and Reports
Volume: 9
Number: 2
Identification Number: 10.1007/s12015-013-9429-4
ISSN: 15508943
Depositing User: مهندس جمال محمودپور

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