Related by context. Frequent words. (Click for all words.) 69 fibroblasts 68 hepatocytes 67 progenitor cells 67 neural stem cells 64 hematopoietic stem cells 63 endothelial cells 63 transgenic mice 62 bone marrow stem cells 62 ES cells 62 deficient mice 61 cultured cells 61 cells 61 islet cells 61 pancreatic cells 60 mammalian cells 60 knockout mice 60 pluripotent stem cells 60 tumor cells 59 neurones 59 mesenchymal stem cells 59 retinal cells 59 epithelial cells 59 germ cells 59 murine 59 hESCs 58 stem cells 58 neurons 58 genetically engineered mice 58 lymphocytes 58 skeletal muscle 57 iPS cells 57 MSCs 57 TGF beta 57 peptides 57 endothelial 56 diabetic mice 56 mutant mice 56 VEGF 56 microglia 56 nerve cells 56 immune cells 56 proteins 55 isoforms 55 mice 55 CXCR4 55 angiogenic 55 monocytes 55 oocytes 55 T lymphocytes 55 induced pluripotent stem cells 55 extracellular 55 ex vivo 55 vivo 55 osteoblasts 55 antibodies 55 mitochondria 55 vasculature 54 zebrafish 54 neutrophils 54 phenotype 54 interferon alpha 54 leukocytes 54 macrophages 54 astrocytes 54 yeast cells 54 endothelium 53 overexpression 53 glial cells 53 GDNF 53 adiponectin 53 peptide 53 epithelial 53 motor neurons 53 enzyme 53 apoptosis 53 caspase 53 CD# + [002] 53 NK cells 53 photoreceptors 53 neutralizing antibodies 53 diseased cells 53 pluripotent 53 neurogenesis 53 adipose tissue 52 dendritic cells 52 ventricles 52 autophagy 52 tumor suppressor gene 52 apoptotic 52 insulin producing 52 Akt 52 GM CSF 52 oncogenes 52 mRNA 52 CD# [002] 52 G CSF 52 thymus 52 neuron 52 adenosine 51 estrogen receptors 51 proteases