Investigation of inhibitory effects on EPC-mediated neovascularization by different bisphosphonates for cancer therapy
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Investigation of inhibitory effects on EPC-mediated neovascularization by different bisphosphonates for cancer therapy. / Ziebart, Thomas; Ziebart, Johanna; Gauss, Leonie; Pabst, Andreas; Ackermann, Maximilian; Smeets, Ralf; Konerding, Moritz A; Walter, Christian.
In: BIOMED REP, Vol. 1, No. 5, 01.09.2013, p. 719-722.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Investigation of inhibitory effects on EPC-mediated neovascularization by different bisphosphonates for cancer therapy
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
PY - 2013/9/1
Y1 - 2013/9/1
N2 - 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.
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.
U2 - 10.3892/br.2013.145
DO - 10.3892/br.2013.145
M3 - SCORING: Journal article
C2 - 24649016
VL - 1
SP - 719
EP - 722
JO - BIOMED REP
JF - BIOMED REP
SN - 2049-9434
IS - 5
ER -