Calcification of multipotent prostate tumor endothelium.
Calcification of multipotent prostate tumor endothelium.
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DOI:
10.1016/j.ccr.2008.06.017
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发表时间:
2008-09-09
期刊:
影响因子:
50.3
通讯作者:
Klagsbrun M
中科院分区:
文献类型:
--
作者:
Dudley AC;Khan ZA;Shih SC;Kang SY;Zwaans BM;Bischoff J;Klagsbrun M
Solid tumors require new blood vessels for growth and metastasis, yet the biology of tumor-specific endothelial cells is poorly understood. We have isolated tumor endothelial cells from mice which spontaneously develop prostate tumors. Clonal populations of tumor endothelial cells expressed hematopoietic and mesenchymal stem cell markers and differentiated to form cartilage and bone-like tissues. Chondrogenic differentiation was accompanied by an up-regulation of cartilage-specific col 2a1 and sox 9, whereas osteocalcin and the metastasis marker osteopontin were up-regulated during osteogenic differentiation. In human and mouse prostate tumors, ectopic vascular calcification was predominately luminal and co-localized with the endothelial marker CD31. Thus, prostate tumor endothelial cells are atypically multi-potent and can undergo a mesenchymal-like transition.
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