منابع مشابه
role of cultural iran in promotion of multilaieralism in central asia and caucasus
cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...
15 صفحه اولExpression of growth factors and oncogenes in normal and tumor-derived human mammary epithelial cells.
The expression of genes which may be involved in the regulation of human mammary epithelial cell growth [transforming growth factors alpha and beta] and tumorigenesis [c-myc, erbB2, epidermal growth factor receptor (EGFR), Ha-ras, pS2] has been compared in similarly cultured normal cell strains and tumor cell lines. We have found that the normal breast cells produce high levels of EGFR mRNA, wh...
متن کاملPerspectives on clonogenic tumor cells, stem cells, and oncogenes.
The last decade has seen major advances in both cellular and molecular aspects of cancer biology. Tissue culture methods that allow the recognition of clonogenic cells within human tu mors have been described (37, 64); on the basis of theoretical arguments and the application of these techniques, it has been proposed that neoplasms may be regarded as stem cell systems in which a minority of cel...
متن کاملthe role of thematic structure in comprehending spoken language
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
15 صفحه اولOncogenes and Tumor Suppressors Regulate Glutamine Metabolism in Cancer Cells
Several hallmarks of cancer cells are their display of metabolic changes and enhanced proliferation. Highly proliferating cells utilize glutamine as a source of nitrogen, and therefore, one of the commonly seen metabolic changes is increased glutaminolysis, or glutamine catabolism. In addition, glutamine is an important anaplerotic source by which cells support the pools of TCA cycle intermedia...
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ژورنال
عنوان ژورنال: Journal of Cancer Research and Clinical Oncology
سال: 1986
ISSN: 0171-5216,1432-1335
DOI: 10.1007/bf02579935