Search results for "Tumor vascularization"

showing 3 items of 3 documents

Tumour vascularization via endothelial differentiation of glioblastoma stem-like cells

2010

Glioblastoma is a highly angiogenetic malignancy, the neoformed vessels of which are thought to arise by sprouting of pre-existing brain capillaries. The recent demonstration that a population of glioblastoma stem-like cells (GSCs) maintains glioblastomas indicates that the progeny of these cells may not be confined to the neural lineage. Normal neural stem cells are able to differentiate into functional endothelial cells. The connection between neural stem cells and the endothelial compartment seems to be critical in glioblastoma, where cancer stem cells closely interact with the vascular niche and promote angiogenesis through the release of vascular endothelial growth factor(VEGF) and str…

EndotheliumAngiogenesisTransplantation HeterologousSettore MED/27 - NEUROCHIRURGIAMice TransgenicMice SCIDBiologyModels BiologicalMiceVasculogenesisNeural Stem CellsMice Inbred NODCell Line TumormedicineAnimalsHumansCell LineageVasculogenic mimicryglioblastoma tumor vascularizationIn Situ Hybridization FluorescenceChromosome AberrationsMultidisciplinaryNeovascularization PathologicEndothelial CellsCell DifferentiationVascular endothelial growth factor BEndothelial stem cellVascular endothelial growth factor Amedicine.anatomical_structureVascular endothelial growth factor CTumor Markers BiologicalImmunologyCancer researchEndothelium VascularGlioblastomaNeoplasm TransplantationNature
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Relationship Between Size and Oxygenation Status of Malignant Tumors

1983

During advanced phases of malignant growth, there are typical changes in the microvasculature pattern within the tissue of many solid tumors. Partly due to these peculiarities of tumor vascularization, a series of characteristic variations of tumor microcirculation occurs (for a review see 1). These alterations lead not only to marked restrictions and inhomogeneities of both convective and diffusive transport but also to an impairment of the efficiency of antitumor therapies.

Pathologymedicine.medical_specialtybusiness.industryWeight classTumor microcirculationmedicineOxygenationTumor vascularizationbusinessMalignant Growth
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The relation between tumor cell proliferation and vascularization in differentiated and undifferentiated colon carcinomas in the rat.

1982

Tumor cell proliferation and tumor vascularization were investigated in differentiated and undifferentiated colon carcinomas of the rat. The following results were found: 1, in both tumor types, vascularization is developed equally well; 2, both in the differentiated and in the undifferentiated carcinomas, the number of proliferating tumor cells decreases with increasing distance from the capillaries; at a distance of about 80 microns, there is no longer any noteworthy tumor cell proliferation; 3, the differentiated and undifferentiated carcinomas differ both in the level of the mitosis index and 3H-thymidine labeling index as well as in their local proliferation pattern despite equal vascu…

Tumor cell populationPathologymedicine.medical_specialtyLabeling indexTumor cellsNeoplasms ExperimentalBiologyTumor vascularizationmedicine.diseaseRatsColon carcinomaColonic NeoplasmsCarcinomamedicineMitotic IndexAnimalsAutoradiographyUndifferentiated carcinomaMitosisCell DivisionThymidineVirchows Archiv. B, Cell pathology including molecular pathology
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