Vascular endothelial growth factor expression in human neuroblastoma: Up‐regulation by hypoxia
Vascular endothelial growth factor expression in human neuroblastoma: Up‐regulation by hypoxia
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人神经母细胞瘤中血管内皮生长因子的表达:缺氧上调
DOI:
--
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发表时间:
1999
影响因子:
6.4
通讯作者:
Lothar Schweigerer
中科院分区:
文献类型:
--
作者:
J. Rössler;S. Breit;W. Havers;Lothar Schweigerer
Enhanced angiogenesis apparently contributes to the poor clinical outcome of human neuroblastoma, but the mechanisms have remained unclear. We report here that cultured human neuroblastoma cells express a bioactive endothelial cell growth factor indistinguishable from the angiogenesis stimulator vascular endothelial growth factor (VEGF). VEGF is present in neuroblastoma but not vascular endothelial cells, whereas the corresponding VEGF receptors (Flt‐1 and Flk‐1/KDR) are expressed in endothelial but not neuroblastoma cells. Exposure of neuroblastoma cells to hypoxia induces a marked increase in bioactive VEGF. VEGF is also present in human neuroblastoma specimens, with substantial amounts in apparently hypoxic neuroblastoma cells, eventually accumulating in tumor microvessels. Our results indicate that VEGF (i) is present in human neuroblastomas, (ii) is up‐regulated by tumor hypoxia and (iii) may stimulate neuroblastoma angiogenesis by paracrine mechanisms, thereby contributing to the progression of human neuroblastomas. We suggest that inhibition of VEGF activity may represent a novel approach for the therapy of human neuroblastoma. Int. J. Cancer 81:113–117, 1999. © 1999 Wiley‐Liss, Inc.
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DOI:
--
发表时间:
1997
期刊:
The American journal of pathology.
影响因子:
--
作者:
Perez-Atayde,AR;Sallan,SE;Tedrow,U;Connors,S;Allred,E;Folkman,J
通讯作者:
Folkman,J
影响因子:
45.3
作者:
Meitar, D;Crawford, SE;Cohn, SL
通讯作者:
Cohn, SL
影响因子:
11.2
作者:
D. Mukhopadhyay;L. Tsiokas;V. Sukhatme
通讯作者:
D. Mukhopadhyay;L. Tsiokas;V. Sukhatme
影响因子:
11.2
作者:
J. Raleigh;Dennise P. Calkins-Adams;L. Rinker;C. A. Ballenger;M. Weissler;W. Fowler;D. Novotny;M. Varia
通讯作者:
J. Raleigh;Dennise P. Calkins-Adams;L. Rinker;C. A. Ballenger;M. Weissler;W. Fowler;D. Novotny;M. Varia
DOI:
10.1073/pnas.93.25.14765
发表时间:
1996-12-10
影响因子:
11.1
作者:
Yuan, F;Chen, Y;Jain, RK
通讯作者:
Jain, RK