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- W2074719319 abstract "Malignant gliomas are associated with a dysfunctional blood-tumor barrier (BTB) that causes substantial morbidity. Scatter factor/hepatocyte growth factor (SF/HGF) is a multifunctional growth factor that correlates with glioma malignancy and has several biological properties that suggest a role in enhancing blood-glioma barrier permeability. In this study, we examined the effects of glioma cell SF/HGF expression on BTB permeability to horseradish peroxidase (HRP). Fischer 344 rats bearing intrastriatal 9L tumors engineered to secrete SF/HGF (9L-SF) and SF/HGF-negative control tumors (9L-neo) received intracardiac injections of HRP and were rapidly decapitated. Densitometric analysis of brain sections reacted with diaminobenzidine showed significantly greater extravascular HRP surrounding SF/HGF-secreting tumors than 9L-neo tumors of comparable size (p<0.05). HRP enzymatic activity associated with striata containing SF/HGF-expressing tumors was 1. 6-fold greater than that of striata containing control tumors (p<0. 05). Northern analysis showed that expression of vascular endothelial growth factor/vascular permeability factor (VEGF/VPF) did not differ between 9L-neo and 9L-SF tumors. These data demonstrate that SF/HGF expression by intracerebral glial tumors can enhance BTB permeability independent of changes in VEGF/VPF expression." @default.
- W2074719319 created "2016-06-24" @default.
- W2074719319 creator A5043335539 @default.
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- W2074719319 date "1999-07-01" @default.
- W2074719319 modified "2023-09-26" @default.
- W2074719319 title "Scatter factor/hepatocyte growth factor gene transfer increases rat blood–glioma barrier permeability" @default.
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- W2074719319 doi "https://doi.org/10.1016/s0006-8993(99)01527-9" @default.
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