TY - JOUR AB - Bisphosphonates (BPs) are potent drugs, used in metastatic cancer-like prostate or breast carcinoma. In recent studies, besides reduced bone remodeling, influences on angiogenesis and neovascularization were reported. Since BPs have the tendency to accumulate in the bones, the biological effect of various nitrogen- and non-nitrogen BPs on endothelial progenitor cells (EPCs) that originated from bone marrow and mobilized under physiological and pathophysiological conditions, such as tumor neovascularization, was investigated. EPCs subsequent to 72‑h treatment with different concentrations of bisphosphonates comprised the non-nitrogen-containing BP clodronate and the nitrogen-containing BPs ibandronate, pamidronate and zoledronate. After incubation, biological activity was measured by using the migration boyden chamber assay and measurement of the colony-forming ability. Nitrogen-containing BPs inhibited the migration ability and differentiation of EPCs in a dose-dependent manner, as compared to the non-treated control groups. More specifically, the nitrogen-containing BP zoledronate significantly inhibited angiogenesis and neovascularization. Clodronate was less distinct on EPC function. To underline the importance of neovascularization in the context of tumor angiogenesis, EPC functions were significantly influenced in a dose-dependent manner by nitrogen-containing BPs. From these findings, we conclude that especially the nitrogen-containing BPs, such as zoledronate, are potential anticancer agents through the inhibition of neovascularization. AD - Department of Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University Mainz, D-55131 Mainz, Germany Institute of Functional and Clinical Anatomy, University Medical Center of Johannes Gutenberg University Mainz, D-55131 Mainz, Germany Department of Maxillofacial Surgery, University Medical Center of Hamburg-Eppendorf, Hamburg, Germany AU - Ziebart,Thomas AU - Ziebart,Johanna AU - Gauss,Leonie AU - Pabst,Andreas AU - Ackermann,Maximilian AU - Smeets,Ralf AU - Konerding,Moritz ,A. AU - Walter,Christian DA - 2013/09/01 DO - 10.3892/br.2013.145 EP - 722 IS - 5 JO - Biomed Rep KW - bisphosphonate endothelial progenitor cells endo­thelial progenitor cell neovascularization angiogenesis cancer PY - 2013 SN - 2049-9434 2049-9442 SP - 719 ST - Investigation of inhibitory effects on EPC-mediated neovascularization by different bisphosphonates for cancer therapy T2 - Biomedical Reports TI - Investigation of inhibitory effects on EPC-mediated neovascularization by different bisphosphonates for cancer therapy UR - https://doi.org/10.3892/br.2013.145 VL - 1 ER -