Related by context. Frequent words. (Click for all words.) 50 cells 50 progenitor cell 50 eukaryotic cells 49 astrocyte 49 HSCs 49 myoblasts 49 Langerhans cells 49 granulocytes 49 phagocytosis 48 induced pluripotent stem iPS 48 pluripotent cells 48 polypeptides 48 anthrax toxin 48 Notch signaling 48 organism 47 fibroblast 47 endothelial progenitor cells 47 FGF# 47 unfertilized human 47 Therapeutic cloning 47 spermatogenesis 47 biological molecules 47 mesenchymal cells 47 induce apoptosis 47 myeloma cells 47 undifferentiated cells 47 stem cell differentiation 47 chondrocytes 47 stromal cells 47 telomerase activity 47 multicellular organisms 46 hepatocyte 46 allogeneic 46 somatic cell 46 tumorigenic 46 anticancer therapy 46 RNA molecule 46 glial cell 46 genetic alteration 46 mesenchymal 46 germ cells 46 pancreatic beta 46 regenerate tissue 45 ES cells 45 hematopoietic stem cells 45 embryonic cells 45 rhodopsin 45 hematopoietic stem cell 45 protein fragment 45 transgenic animal 45 exosomes 45 transgenic mouse 45 Cdc# 45 cell transplantation 45 embryogenesis 45 prostate tissue 45 hematopoietic cell 45 pancreatic cells 44 organelle 44 gametes 44 transplanted tissue 44 transgenic animals 44 pluripotent stem cells 44 cell 44 RBCs 44 chloroplast 44 lymphocytes 44 PrP 44 B lymphocytes 44 viral genome 43 monoclonal 43 RPE cells 43 lymphocyte 43 keratinocytes 43 SCNT 43 thymus 43 cloned stem cells 43 oligodendrocytes 43 Th# cells 43 bone marrow derived 43 diseased tissues 43 Neu5Gc 43 somatic cells 43 cytosol 43 neural stem cell 43 Adult stem cells 43 embryonic stem cells 43 retinoic acid 42 transplantable 42 Wnt pathway 42 enzymatic activity 42 mammalian cells 42 human neural stem 42 angiogenic 42 NKT cells 42 fetal stem cells 42 Embryonic stem cells 42 genomic instability 42 macrophage 42 mouse embryonic stem 42 cellulosic materials