1. RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, Japan
2. CREST, Japan Science and Technology Agency, Yokohama, Japan
3. Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama, Japan
4. Department of Reproductive Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
5. Biotech Research and Innovation Center and Center for Epigenetics, University of Copenhagen, Copenhagen, Denmark
6. RIKEN BioResource Center, Ibaraki, Japan
7. Division of Hematological Malignancy, National Cancer Center Research Institute, Tokyo, Japan