- Vitamin D binding protein-macrophage activating factor (DBP-maf) inhibits angiogenesis and tumor growth in mice. Kisker, O., Onizuka, S., Becker, C.M., Fannon, M., Flynn, E., D'Amato, R., Zetter, B., Folkman, J., Ray, R., Swamy, N., Pirie-Shepherd, S. Neoplasia (2003)