... to induced pluripotent stem (iPS) cells. Here, we show that LIN28 accumulates at the NPB and the mature nucleolus in mouse preimplantation embryos and embryonic stem cells (ESCs), where it colocalizes with the nucleolar marker B23 (nucleophosmin 1). LIN28 has nucleolar localization in non-human primate (NHP...

... and preimplantation embryos. Additional CTCF-binding sites are described at other imprinted loci and on the X-chromosome, where they are proposed to play a regulatory role( Chao et al., 2002 ; Fitzpatrick et al., 2007 ; Hikichi et al., 2003 ; Yoon et al., 2005 ). Other CTCF-binding sites are located...

... mechanisms not required in somatic cells, which regain their initial volumes before cytokinesis. Thus, we have examined whether I Cl,swell is regulated by the cell cycle in mouse oocytes and preimplantation embryos, and whether it is under developmental regulation during early embryogenesis. We have found...