Abstract
Purpose: To investigate the effect of curcumin on tumor growth and angiogenesis of human gliomas and identify the underlying molecular mechanisms.
Methods: A mouse xenograft glioma model was established by subcutaneously inoculating tumor cell aggregates derived from the U87 cell line. Mice were treated with 0.01ml/g body weight of curcumin or saline. Tumor volume was measured. Microvessel density was assessed by CD34 immunostaining, and angiogenesis by immunohistochemical staining of vascular endothelial growth factor (VEGF), angiopoietin-2 (Ang-2) and thrombospondin 1 (TSP-1).
Results: At 28 days after treatment, tumor weights in the curcumin-treated group were much smaller than in the control group (0.23±0.11g vs 0.44±0.15g,p<0.05), resulting in a 45.8% inhibition of tumor growth. Curcumin also markedly inhibited microvessel density. Expression of VEGF and Ang-2 was inhibited by curcumin, whereas TSP-1 expression was up-regulated.
Conclusion: This study shows that curcumin inhibits tumor growth by inhibiting VEGF/Ang-2/TSP-1- mediated angiogenesis in a xenograft glioma mouse model.
Keywords: Curcumin, glioma, angiogenesis, vascular endothelial growth factor.Curcumin, glioma, angiogenesis, vascular endothelial growth factor.
CNS & Neurological Disorders - Drug Targets
Title:Curcumin Suppresses Tumor Growth and Angiogenesis in Human Glioma Cells Through Modulation of Vascular Endothelial Growth Factor/ Angiopoietin-2/Thrombospondin-1 Signaling
Volume: 16 Issue: 3
Author(s): Zhiqiang Zhang*, Cong Li, Qijia Tan, Caijun Xie, Yanying Yang, Wengang Zhan, Fu Han, Hari Shanker Sharma*Aruna Sharma
Affiliation:
- Director of Research, CNS Injury & Repair (IECNSIR), Uppsala University Hospital, Uppsala University, Frödingsgatan 12, Bldg. 1228, SE-7541 Uppsala,Sweden
- Director of Research, CNS Injury & Repair (IECNSIR), Uppsala University Hospital, Uppsala University, Frödingsgatan 12, Bldg. 1228, SE-7541 Uppsala,Sweden
Keywords: Curcumin, glioma, angiogenesis, vascular endothelial growth factor.Curcumin, glioma, angiogenesis, vascular endothelial growth factor.
Abstract: Purpose: To investigate the effect of curcumin on tumor growth and angiogenesis of human gliomas and identify the underlying molecular mechanisms.
Methods: A mouse xenograft glioma model was established by subcutaneously inoculating tumor cell aggregates derived from the U87 cell line. Mice were treated with 0.01ml/g body weight of curcumin or saline. Tumor volume was measured. Microvessel density was assessed by CD34 immunostaining, and angiogenesis by immunohistochemical staining of vascular endothelial growth factor (VEGF), angiopoietin-2 (Ang-2) and thrombospondin 1 (TSP-1).
Results: At 28 days after treatment, tumor weights in the curcumin-treated group were much smaller than in the control group (0.23±0.11g vs 0.44±0.15g,p<0.05), resulting in a 45.8% inhibition of tumor growth. Curcumin also markedly inhibited microvessel density. Expression of VEGF and Ang-2 was inhibited by curcumin, whereas TSP-1 expression was up-regulated.
Conclusion: This study shows that curcumin inhibits tumor growth by inhibiting VEGF/Ang-2/TSP-1- mediated angiogenesis in a xenograft glioma mouse model.
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Cite this article as:
Zhang Zhiqiang*, Li Cong, Tan Qijia, Xie Caijun, Yang Yanying, Zhan Wengang, Han Fu, Sharma Shanker Hari*, Sharma Aruna, Curcumin Suppresses Tumor Growth and Angiogenesis in Human Glioma Cells Through Modulation of Vascular Endothelial Growth Factor/ Angiopoietin-2/Thrombospondin-1 Signaling, CNS & Neurological Disorders - Drug Targets 2017; 16 (3) . https://dx.doi.org/10.2174/1871527315666160902144513
DOI https://dx.doi.org/10.2174/1871527315666160902144513 |
Print ISSN 1871-5273 |
Publisher Name Bentham Science Publisher |
Online ISSN 1996-3181 |
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