Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures

The ability to regenerate complex structures is broadly represented in both plant and animal kingdoms. Although regenerative abilities vary significantly amongst metazoans, cumulative studies have identified cellular events that are broadly observed during regenerative events. For example, structura...

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Main Authors: Labib Rouhana, Junichi Tasaki
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2016/6947395
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author Labib Rouhana
Junichi Tasaki
author_facet Labib Rouhana
Junichi Tasaki
author_sort Labib Rouhana
collection DOAJ
description The ability to regenerate complex structures is broadly represented in both plant and animal kingdoms. Although regenerative abilities vary significantly amongst metazoans, cumulative studies have identified cellular events that are broadly observed during regenerative events. For example, structural damage is recognized and wound healing initiated upon injury, which is followed by programmed cell death in the vicinity of damaged tissue and a burst in proliferation of progenitor cells. Sustained proliferation and localization of progenitor cells to site of injury give rise to an assembly of differentiating cells known as the regeneration blastema, which fosters the development of new tissue. Finally, preexisting tissue rearranges and integrates with newly differentiated cells to restore proportionality and function. While heterogeneity exists in the basic processes displayed during regenerative events in different species—most notably the cellular source contributing to formation of new tissue—activation of conserved molecular pathways is imperative for proper regulation of cells during regeneration. Perhaps the most fundamental of such molecular processes entails chromatin rearrangements, which prime large changes in gene expression required for differentiation and/or dedifferentiation of progenitor cells. This review provides an overview of known contributions to regenerative processes by noncoding RNAs and chromatin-modifying enzymes involved in epigenetic regulation.
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spelling doaj-art-069952e165ff48fc8911522bfd2e1cc12025-02-03T01:07:04ZengWileyStem Cells International1687-966X1687-96782016-01-01201610.1155/2016/69473956947395Epigenetics and Shared Molecular Processes in the Regeneration of Complex StructuresLabib Rouhana0Junichi Tasaki1Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435-0001, USADepartment of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435-0001, USAThe ability to regenerate complex structures is broadly represented in both plant and animal kingdoms. Although regenerative abilities vary significantly amongst metazoans, cumulative studies have identified cellular events that are broadly observed during regenerative events. For example, structural damage is recognized and wound healing initiated upon injury, which is followed by programmed cell death in the vicinity of damaged tissue and a burst in proliferation of progenitor cells. Sustained proliferation and localization of progenitor cells to site of injury give rise to an assembly of differentiating cells known as the regeneration blastema, which fosters the development of new tissue. Finally, preexisting tissue rearranges and integrates with newly differentiated cells to restore proportionality and function. While heterogeneity exists in the basic processes displayed during regenerative events in different species—most notably the cellular source contributing to formation of new tissue—activation of conserved molecular pathways is imperative for proper regulation of cells during regeneration. Perhaps the most fundamental of such molecular processes entails chromatin rearrangements, which prime large changes in gene expression required for differentiation and/or dedifferentiation of progenitor cells. This review provides an overview of known contributions to regenerative processes by noncoding RNAs and chromatin-modifying enzymes involved in epigenetic regulation.http://dx.doi.org/10.1155/2016/6947395
spellingShingle Labib Rouhana
Junichi Tasaki
Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
Stem Cells International
title Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
title_full Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
title_fullStr Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
title_full_unstemmed Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
title_short Epigenetics and Shared Molecular Processes in the Regeneration of Complex Structures
title_sort epigenetics and shared molecular processes in the regeneration of complex structures
url http://dx.doi.org/10.1155/2016/6947395
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