Related by context. Frequent words. (Click for all words.) 69 stem cells 68 progenitor cells 66 fibroblasts 66 neural stem cells 65 bone marrow stem cells 65 ex vivo 63 hematopoietic stem cells 62 MSCs 62 ES cells 62 hepatocytes 61 islet cells 61 pluripotent stem cells 61 pancreatic cells 60 hESCs 60 transgenic mice 60 dendritic cells 60 endothelial cells 59 cardiomyocytes 59 monocytes 59 lymphocytes 59 epithelial cells 59 mammalian cells 59 iPS cells 58 germ cells 58 cytokines 58 cells 57 adult stem cells 57 angiogenic 57 autologous 57 tumor cells 56 TGF beta 56 immune cells 56 proteins 56 knockout mice 56 CXCR4 56 microspheres 55 cytokine 55 oocytes 55 astrocytes 55 proteases 55 peptides 55 leukocytes 55 murine 55 macrophages 55 osteoblasts 54 Adult stem cells 54 fusion protein 54 mutant mice 54 tissue 54 neurogenesis 54 recombinant protein 54 endothelial 54 T lymphocytes 54 zebrafish 54 induced pluripotent stem cells 54 VEGF 54 skeletal muscle 54 retinal cells 53 neutrophils 53 regenerative cells 53 biologically active 53 microRNAs 53 thrombin 53 macrophage 53 epithelium 53 plasma membrane 53 isoforms 53 lymphocyte 53 collagen 53 microglia 53 adenosine 53 vasculature 53 autophagy 53 deficient mice 53 vivo 53 C. elegans 53 GM CSF 52 embryonic stem cells 52 adipose tissue 52 signaling molecules 52 recombinant 52 epithelial 52 diabetic mice 52 axons 52 tissue regeneration 52 neurones 52 rapamycin 52 FGF 52 miRNAs 52 transcription factors 52 NK cells 52 glial cells 52 miRNA 52 allograft 52 enzymes 52 G CSF 52 signaling pathways 51 fibrinogen 51 neurons 51 protein 51 diseased cells