کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10915573 | 1090084 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The Role of Heparanase in Lymph Node Metastatic Dissemination: Dynamic Contrast-Enhanced MRI of Eb Lymphoma in Mice
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
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چکیده انگلیسی
Heparanase expression has been linked to increased tumor invasion, metastasis, angiogenesis and with poor prognosis. The aim of the study was to monitor the effect of heparanase expression on lymph node metastasis, in heparanase-overexpressing subcutaneous Eb mouse T-lymphoma tumors, their draining lymph node. Dynamic contrast-enhanced magnetic resonance imaging (MRI) using biotin-BSAGdDTPA-FAM/ROX was applied for analysis of blood volume, vascular permeability, interstitial convection, for detection of very early stages of such metastatic dissemination. Eb tumors increased extravasation, interstitial convection, lymphatic drain of the contrast material. Interstitial flow directions were mapped by showing radial outflow interrupted in some tumors by directional flow toward the popliteal lymph node. Heparanase expression significantly increased contrast enhancement of the popliteal lymph node but not of the primary tumor. Changes in MR contrast enhancement preceded the formation of pathologically detectable metastases, were detectable when only a few enhanced green fluorescent protein (EGFP)expressing Eb cells were found near and within the nodes. These results demonstrate very early, heparanase-dependent vascular changes in lymph nodes that were visible by MRI following administration of biotin-BSA-GdDTPA-FAWROX, can be used for studying the initial stages of lymph node infiltration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neoplasia - Volume 7, Issue 3, March 2005, Pages 224-233
Journal: Neoplasia - Volume 7, Issue 3, March 2005, Pages 224-233
نویسندگان
Hagit Dafni, Batya Cohen, Keren Ziv, Tomer Israely, Orit Goldshmidt, Nava Nevo, Alon Harmelin, Israel Vlodavsky, Michal Neeman,