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KMID : 0381120190410030257
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Genes and Genomics
2019 Volume.41 No. 3 p.257 ~ p.265
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The structural and functional roles of CTCF in the regulation of cell type-specific and human disease-associated super-enhancers
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Shin Ha-Youn
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Abstract
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Background: Super-enhancers play critical roles in cell-type specific gene controls and human disease progression. CCCTC-binding factor (CTCF), a transcriptional repressor that insulates the expression of neighboring genes and is involved in chromatin interactions, is frequently present in the boundary regions of or within super-enhancers. However, the structural and functional roles of CTCF in regulating super-enhancers remain elusive.
Objective: To provide a comprehensive review describing the distinct chromatin features and functional roles of CTCF within super-enhancers.
Methods: This review compares the various tools used to study the three-dimensional (3D) chromatin architecture of super-enhancers; summarizes the chromatin features of CTCF within cell-type specific super-enhancers and their in vivo biological activities, as determined by CRISPR/Cas9 genome editing; and describes the structural and functional activities of CTCF within human disease-associated super-enhancers.
Conclusion: This review provides fundamental insights into the regulatory mechanisms of super-enhancers and facilitates studies of tissue-specific developmental processes and human disease progression.
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KEYWORD
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CTCF, Super-enhancer, Insulator, Chromatin looping, Chromosome conformation capture assay
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