Related by context. Frequent words. (Click for all words.) 67 ES cells 66 embryonic stem cells 66 embryonic cells 65 iPS 64 pluripotent stem cells 64 iPSCs 63 iPS cells 63 hESC 63 stem cells 61 induced pluripotent stem cells 61 adult stem cells 59 pluripotent 58 SCNT 57 hESCs 56 human embryonic stem 56 stem cell 55 Adult stem cells 55 hepatocytes 55 progenitor cells 55 HSCs 55 oocytes 55 mouse embryos 54 embryo 54 islet cells 54 cloned embryos 54 embryos 54 hematopoietic stem cells 54 human embryos 54 neural stem cells 53 pluripotency 53 somatic cell nuclear 52 chimeras 52 germ cells 52 oocyte 52 mesenchymal stem cells 52 cardiomyocytes 52 genetically engineered mice 52 MSCs 52 Embryonic stem cell 52 bone marrow stem cells 52 cultured cells 52 stem cells derived 52 blastocysts 52 transgenic mice 52 Embryonic stem cells 51 destroying embryos 51 therapeutic cloning 51 Stem cells 51 fibroblasts 51 oligodendrocytes 51 adult stem cell 50 embryonic stem cell 50 embryonic 50 Embryonic 50 mammalian cells 50 knockout mice 50 gene therapy 49 cells 49 NK cells 49 autologous 49 isoforms 49 transgenic 49 parthenogenesis 49 cloning 48 STAT3 48 ex vivo 48 pancreatic cells 48 miRNA 47 miRNAs 47 recombinant DNA 47 telomerase 47 stem cell therapies 47 Embryos 47 retrovirus 47 GDNF 46 pancreatic beta 46 dendritic cells 46 insulin producing 46 transfection 46 lymphocytes 46 tumor cells 46 stem cell therapy 46 retinal cells 46 reproductive cloning 46 osteoblasts 46 Stem Cells 46 fertilized eggs 45 Stem Cell Research 45 mutant mice 45 murine 45 microglia 45 gametes 45 TGF beta 45 human neural stem 45 therapeutically 45 prions 45 cloned 45 antisense 45 fetal tissue 45 oncogenes 45 fertilized egg