Analysis and application of totipotent-cell specific genes
Project/Area Number |
25291053
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Developmental biology
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Research Institution | Nagahama Institute of Bio-Science and Technology |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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Keywords | 全能性細胞 / リプログラミング / 胚性遺伝子活性化 / 母性RNA分解 / Pramef12 / 減数分裂 / レチノイン酸シグナル / Klf17 / Btg4 |
Outline of Final Research Achievements |
Sperm and oocyte are highly specified cells to transfer genetic information to next generations, but they attain totipotency by reprograming soon after fertilization. The reprogramming process includes protamine-histone exchange, DNA demethylation, zygotic gene activation, and degradation of maternal RNAs and proteins, and so on. However, mechanisms for acquisition of totipotency are largely unclear despite their biological significance. In this study, we identified the genes specifically expressed in totipotent cells. Among these totipotent-cell-specific genes, we found that Klf17 (Kruppel-like factor 17) and Btg4 (B cell translocation 4) are maternal effect genes required for pre-implantation development. Furthermore, we revealed that Klf17 and Btg4 are involved in zygotic genome activation and clearance of maternal transcripts after fertilization, respectively.
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Report
(4 results)
Research Products
(53 results)
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[Journal Article] Human Dynactin-Associated Protein Transforms NIH3T3 Cells to Generate Highly Vascularized Tumors with Weak Cell-Cell Interaction.2015
Author(s)
Kunoh T, Wang W, Kobayashi H, Matsuzaki D, Togo Y, Tokuyama M, Hosoi M, Koseki K, Wada S, Nagai N, Nakamura T, Nomura S, Hasegawa M, Sasaki R, Mizukami T.
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Journal Title
PLoS One.
Volume: 10(8)
Issue: 8
Pages: e0135836-e0135836
DOI
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Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Stella controls chromocenter formation through regulation of Daxx expression in 2-cell embryos.2015
Author(s)
Arakawa, T., Nakatani, T., Oda, M., Kimura, Y., Sekita, Y., Kimura, T., Nakamura, T., and Nakano, T.
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Journal Title
Biochemical and Biophysical Research Communications
Volume: 466
Issue: 1
Pages: 60-60
DOI
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Peer Reviewed / Open Access
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[Journal Article] De novo DNA methylation through the 5'-segment of the H19 ICR maintains its imprint during early embryogenesis2015
Author(s)
Matsuzaki, H., Okamura, E., Takahashi, T., Ushiki, A., Nakamura, T., Nakano, T., Hata, K., Fukamizu, A., and Tanimoto, K.
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Journal Title
Development
Volume: 142
Pages: 3833-3844
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] GPAT2, a Mitochondrial Outer Membrane Protein in piRNA Biogenesis in Germline Stem Cells2013
Author(s)
Shiromoto Y, Kuramochi-Miyagawa S, Daiba A, Chuma S, Katanaya A, Nishimura K, Ohtaka M, Nakanishi M, Nakamura T, Yoshinaga K, Asada N, Nakamura S, Yasunaga T, Kojima-Kita K, Itou D, Kimura T, Nakano T
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Journal Title
RNA
Volume: 19
Issue: 6
Pages: 803-810
DOI
Related Report
Peer Reviewed
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[Presentation] High-affinity, poly-reactive IgA is required for gut homeostatic maintenance to prevent colitis in mice2015
Author(s)
Shinsaku Okai, Fumihito Usui, Makoto Hasegawa, Toshinobu Nakamura, Kazuya Yamamoto, Eri Nishiyama, Hiroshi Mori, Takuji Yamada, Ken Kurokawa, Tamotsu Kato, Eiji Miyauchi, Hiroshi Ohno, Reiko Shinkura
Organizer
BMB2015(第38回日本分子生物学会年会・第88回日本生化学会大会 合同大会)
Place of Presentation
神戸
Year and Date
2015-12-01
Related Report
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[Presentation] High-affinity, poly-reactive IgA is required for gut homeostatic maintenance to prevent colitis in mice2015
Author(s)
Shinsaku Okai, Fumihito Usui, Makoto Hasegawa, Toshinobu Nakamura, Kazuya Yamamoto, Eri Nishiyama, Hiroshi Mori, Takuji Yamada, Ken Kurokawa, Tamotsu Kato, Eiji Miyauchi, Hiroshi Ohno, Reiko Shinkura
Organizer
第44回日本免疫学会学術集会
Place of Presentation
札幌
Year and Date
2015-11-18
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[Presentation] Stella preserves maternal chromosome integrity by inhibiting 5hmC-dependent γH2AX accumulation.2014
Author(s)
Tsunetoshi Nakatani, Kazuo Yamagata, Tohru Kimura, Masaaki Oda, Hiroyuki Nakashima, Mayuko Hori, Yoichi Sekita, Tatsuhiko Arakawa, Toshinobu Nakamura, Toru Nakano
Organizer
Cold Spring Harbor Laboratory meeting EPIGENETICS & CHROMATIN
Place of Presentation
New York, USA
Year and Date
2014-09-09 – 2014-09-13
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