Related by context. Frequent words. (Click for all words.) 65 stromal cells 63 tumor cells 62 NKT cells 61 micelles 61 leukemic cells 61 malignant cells 61 HSCs 60 integrins 60 T lymphocytes 60 immune cells 60 vesicle 60 diseased cells 59 epithelial cells 59 magnetic nanoparticles 59 lymphocytes 59 macrophages 59 organelle 59 fusion proteins 59 neural stem cells 59 beta amyloid protein 59 Aβ 58 leukocytes 58 monocytes 58 proteins 58 chloroplasts 58 mammalian cells 58 glycoproteins 58 B lymphocytes 58 hematopoietic stem cells 58 stem cells 58 lymphatic vessels 58 dendritic cells 58 intracellular 58 progenitor cells 58 cells 58 chondrocytes 58 bone marrow stem cells 58 mesenchymal 58 S1P 58 endocytosis 57 pancreatic cells 57 keratinocytes 57 viral particles 57 sialic acid 57 progenitor cell 57 peptides 57 alpha synuclein 57 microparticles 57 retinal cells 57 vesicles 57 molecules 57 liposomes 57 lysosomes 57 germ cells 57 membrane protein 57 prions 57 prostate tissue 57 iPSCs 56 microbubbles 56 lipids 56 prion 56 retroviruses 56 antigen presenting cells 56 integrin 56 extracellular 56 ES cells 56 fibroblasts 56 antibodies 56 reactive oxygen species ROS 56 androgen receptor 56 aptamers 55 nanoparticles 55 diseased tissue 55 mAbs 55 nitric oxide NO 55 NK cells 55 tumor angiogenesis 55 naturally occurring protein 55 nanospheres 55 vasculature 55 transgene 55 epithelium 55 liposome 55 epithelial 55 prion protein 55 bile acids 55 CXCR4 55 glial cells 55 RPE cells 55 stem cell differentiation 55 astrocyte 55 HSP# 55 neutrophils 55 hepatocytes 55 macrophage 55 cancerous cells 55 tau protein 55 Abeta 55 viral vector 54 transgenic mice 54 cultured cells