1α,25(OH)2D3 2 4 amino 5 (4 methylphenyl) 7 (tert butyl)pyrazolo(3,4 d)pyrimidine 2 4-amino-5-(4-methylphenyl)-7-(tert-butyl)pyrazolo(3,4-d)pyrimidine 2 Breast Neoplasms 2 Breast cancer cells 2 Calcitriol 2 Cell Line, Tumor 2 Cell Membrane 2 Cell Nucleus 2 Cell Proliferation 2 Enzyme Activation 2 Enzyme Inhibitors 2 Humans 2 MAP kinase 2 Mitogen-Activated Protein Kinases 2 Phosphorylation 2 Phosphotyrosine 2 Protein Binding 2 Protein Transport 2 Protein-Tyrosine-Phosphatase 2 Proto-Oncogene Proteins pp60(c-src) 2 Pyrazoles 2 Pyrimidines 2 Receptors, Calcitriol 2 Serum 2 Signal Transduction 2 Src 2 Tyrosine phosphatases 2 VDR 2 article 2