Abstract
Using deep sequencing (deepCAGE), the FANTOM4 study measured the genome-wide dynamics of transcription-start-site usage in the human monocytic cell line THP-1 throughout a time course of growth arrest and differentiation. Modeling the expression dynamics in terms of predicted cis-regulatory sites, we identified the key transcription regulators, their time-dependent activities and target genes. Systematic siRNA knockdown of 52 transcription factors confirmed the roles of individual factors in the regulatory network. Our results indicate that cellular states are constrained by complex networks involving both positive and negative regulatory interactions among substantial numbers of transcription factors and that no single transcription factor is both necessary and sufficient to drive the differentiation process.
Original language | English (US) |
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Pages (from-to) | 553-562 |
Number of pages | 10 |
Journal | Nature Genetics |
Volume | 41 |
Issue number | 5 |
DOIs | |
State | Published - May 2009 |
Bibliographical note
Funding Information:We thank A. Ambesi, H. Atsui, M. Bansal, V. Belcastro, H. Daub, D. di Bernardo, M. Furuya, A. Hasegawa, K. Hayashida, A. Hirakiyama, F. Hori, K. Koseki, S. Kuhara, N. Miyamoto, S. Miyano, M. Nishikawa, C. Ohinata, M. Persson, S. Saihara, C. Sakaba, H. Sano, E. Shibazaki, T. Takagi, K. Toyoda, Y. Tsujimura and M. Yamamoto for discussion, encouragement and technical assistance. We thank M. Muramatsu, T. Ogawa, Y. Sakaki and A. Wada for support and encouragement. This work was mainly supported by grants for the Genome Network Project from the Ministry of Education, Culture, Sports, Science and Technology, Japan (Y.H.), Research Grant for the RIKEN Genome Exploration Research Project from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government (Y.H.) and the RIKEN Frontier Research System, Functional RNA research program (Y.H.). A.R.R.F. is supported by a CJ Martin Fellowship from the Australian National Health and Medical Research Council (ID 428261). E.v.N. acknowledges support from SNF grant SNF #3100A0-118318.
ASJC Scopus subject areas
- Genetics