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Tumor is caused by uncontrolled cell division when either down regulation of tumor suppression genes or upregulation of proto-oncogenes occurs. This leads to the production of a clump of tumor cells. The tumor cells produced have the blood vessels inserted into them due to the process of angiogenesis and due to this the energy and oxygen is supplied to the tumor cells. Also the surrounding cells in the tumor are affected and this debris is also seen in these cells. Once the tumor becomes invasive it enters the blood stream and reaches to other areas of the body which is the process called as metastasis. Hence due to overgrowth followed by angiogenesis metastasis occurs.
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availab Explain why the cells of a tumor are expected to have heterogeneity and a mix...
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Please help 15. During our paper lab experiment, we compared the tumor cells from one patient...
Please help
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Cancer Biology 8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and...
Cancer Biology
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Please help
15. During our paper lab experiment, we compared the tumor cells from one patient to the normal cells of the same patient. If we wanted to do a larger study to give a larger picture of what is going on in colon cancer cells which of the following would be a better way to set up the experiment? A. Collect cancer cells and normal cells from 1000 patients and run 1000 different microarrays (one for each person) and...
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Cancer Biology
8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and was originally viewed as an attractive target for drug discovery. However, which of the following best explains the lack of therapeutic efficacy for telomerase inhibitors? a. Telomerase alone is sufficient for transformation in human cells. b. Telomerase is required for the maintenance of somatic cell populations. c. Too many post-inhibition cell doublings would be required to see anti-tumor efficacy. d. Telomerase has sequence and...
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