Related by context. Frequent words. (Click for all words.) 58 pluripotent cells 54 melanoma tumors 53 germ cells 52 cloned embryo 52 pluripotent stem cells 52 oligodendrocytes 52 myoblasts 51 transplanted tissue 51 iPSCs 50 mouse embryo 50 stem cells 50 hair follicles 50 interferon gamma 50 follicles 50 RANKL 50 progenitor cells 50 stromal cells 49 retinal cells 49 PrP 49 myostatin 49 lysozyme 49 reprogrammed cells 49 exosomes 49 unfertilized egg 49 stem cell differentiation 49 mesenchymal 49 Th# cells 48 chondrocytes 48 herpes viruses 48 ES cells 48 Schwann cells 48 biological molecules 48 mouse embryos 48 iPS cells 48 induced pluripotent stem iPS 48 progenitor cell 47 metastatic tumors 47 embryonic cells 47 neural stem cells 47 mesenchymal stem cells 47 PGE2 47 dystrophin 47 retinoic acid 47 hair follicle 47 Adult stem cells 47 SOD1 47 RNA molecule 47 hormone estrogen 47 hematopoietic stem cells 47 iPS cell 46 bone marrow stem cells 46 mutant protein 46 mitochondrial genome 46 antibodies 46 NKT cells 46 leukemic cells 46 spermatozoa 46 keratinocytes 46 prion proteins 46 molecular pathway 46 transgenic mice 46 melanocytes 46 induced pluripotent stem cells 46 cancerous cells 46 tumors 45 extract stem cells 45 HSCs 45 pluripotent 45 TGF beta 45 pluripotency 45 somatic cells 45 cloned embryos 45 prions 45 genetically modified mice 45 oocytes 45 malignant cells 45 integrins 45 Embryonic stem cells 45 muscle tissue 44 cardiomyocytes 44 pancreatic cells 44 prostate tumor 44 osteoblasts 44 somatic cell 44 fossilized bones 44 Biopsies 44 tumor cells 44 asexual reproduction 44 glia 44 RPE cells 44 hormone progesterone 44 heterochromatin 44 molecular pathways 44 ESCs 44 RNA molecules 44 hESCs 44 Wnt signaling 44 microRNAs 44 naturally occurring protein 44 embryonic stem cells 44 viral vector