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ISSN: 1045-4403 Print
ISSN: 2162-6502 Online
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Institutional price: $892.00
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Pages: 100
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Architectural Genetic and Epigenetic Control of Regulatory Networks: Compartmentalizing Machinery for Transcription and chromatin remodeling in nuclear Microenvironments
Gary Stein
Department of Cell Biology, University of Massachusetts Medical School and Cancer Center, USA
Andre J. van Wijnen
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, Worcester, MA 01655
Anthony N. Imbalzano
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School and Cancer Center, Worcester, Massachusetts
Martin Montecino
Centro de Investigaciones Biomedicas, Facultad de Ciencias Biologicas y Facultad de Medicina, Universidad Andres Bello, Santiago
Sayyed Kaleem Zaidi
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, Worcester, MA 01655
Jane B. Lian
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655
Jeffrey A. Nickerson
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School and Cancer Center, Worcester, Massachusetts
Janet L. Stein
Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, Worcester, MA 01655
ABSTRACT
The regulatory machinery that governs genetic and epigenetic control of gene expression for biological processes and cancer is organized in nuclear microenvironments. Strategic placement of transcription factors at target gene promoters in punctate microenvironments of interphase nuclei supports scaffolding of co- regulatory proteins and the convergence as well as integration of regulatory networks. The organization and localization of regulatory complexes within the nucleus can provide signatures that are linked to regulatory activity. Retention of transcription factors at gene loci in mitotic chromosomes contributes to epigenetic control of cell fate and lineage commitment, as well as to persistence of transformed and tumor phenotypes. Mechanistic understanding of the architectural assembly of regulatory machinery can serve as a basis for treating cancer with high specificity and minimal off-target effects.
Keywords: gene expression, nuclear structure, histone
pages 149-155
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