Fundamental Concepts -- Overview -- Parathyroid Hormone-Related Peptide and Malignancy -- Vitamin D and Vitamin D Analogs in Cancer Progression and Metastasis -- Role of TGF-? and IGF in Tumor Progression and Bone Metastases -- Biologic and Therapeutic Implications of Osteomimicry and Epithelial-Mesenchymal Transition in Prostate Cancer -- Roles of Immune-Cell-Derived Matrix Metalloproteinases …