neural crest embryo development 6 Cell Adhesion 4 Cell Division 4 Cell adhesion 4 Collagenases 4 Culture Media, Conditioned 4 Extracellular Matrix 4 Gelatinases 4 Humans 4 Matrix Metalloproteinase 2 4 Matrix Metalloproteinase 9 4 Meningeal Neoplasms 4 Meningioma 4 Metalloendopeptidases 4 Neoplasm Invasiveness 4 Neoplasm Proteins 4 Retinoic acid 4 Tretinoin 4 Tumor Cells, Cultured 4 Tumour invasion 4 article 4 cancer invasion 4 cell adhesion 4 cell proliferation 4 cell viability 4 collagen type 1 4 controlled study 4 extracellular matrix 4 fibronectin 4