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Richard A. Young. Whyte, Warren A. (Warren Anthony) Massachusetts Institute of Technology. Dept. of Biology. Massachusetts Institute of Technology. Department of Biology 2012-09-13T18:53:56Z 2012-09-13T18:53:56Z 2012 2012 http://hdl.handle.net/1721.1/72821 806952865 Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 2012. Cataloged from PDF version of thesis. Includes bibliographical references. Mammalian development involves the process by which a single fertilized egg develops into an adult with over 200 specialized cell types, each with a distinct gene expression pattern controlling its cellular state. As cells differentiate into specialized cell types, changes in the gene expression program occur with associated changes in chromatin. An understanding of the roles for chromatin regulators in the control of gene expression programs during differentiation is fundamental to understanding development. Although it is not yet feasible to elucidate the functions of all chromatin regulators in all vertebrate cells, recent work in embryonic stem (ES) cells has demonstrated that regulatory features of differentiation can be elucidated by focusing on the chromatin regulators involved in the changes in the pluripotent gene expression program as ES cells differentiate. New insights reveal that chromatin regulators of opposing functions share a common set of active genes in ES cells, suggesting a dynamic balance in the control of embryonic stem cell state and differentiation. I describe here the molecular mechanisms by which chromatin regulators contribute to the control of the ES cell state and differentiation, where these regulators play critical roles both in activating new gene expression programs and in silencing old programs. by Warren A. Whyte. Ph.D. 278 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Biology. Roles for chromatin regulators during differentiation of embryonic stem cells Thesis application/pdf Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="1f1cb77d-7ffd-4e83-8c5a-86f747d6db75"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Roles for chromatin regulators during differentiation of embryonic stem cells</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2012</PublicationDate> <Authors> <Author> <DisplayName>Whyte, Warren A. (Warren Anthony)</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Biology.</Keyword> <Abstract>Mammalian development involves the process by which a single fertilized egg develops into an adult with over 200 specialized cell types, each with a distinct gene expression pattern controlling its cellular state. As cells differentiate into specialized cell types, changes in the gene expression program occur with associated changes in chromatin. An understanding of the roles for chromatin regulators in the control of gene expression programs during differentiation is fundamental to understanding development. Although it is not yet feasible to elucidate the functions of all chromatin regulators in all vertebrate cells, recent work in embryonic stem (ES) cells has demonstrated that regulatory features of differentiation can be elucidated by focusing on the chromatin regulators involved in the changes in the pluripotent gene expression program as ES cells differentiate. New insights reveal that chromatin regulators of opposing functions share a common set of active genes in ES cells, suggesting a dynamic balance in the control of embryonic stem cell state and differentiation. I describe here the molecular mechanisms by which chromatin regulators contribute to the control of the ES cell state and differentiation, where these regulators play critical roles both in activating new gene expression programs and in silencing old programs.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>