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is theformation of new blood vessels to supply nutrients and oxygen to the tumor. |
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| occurs when cells move into the bloodstream or lymphatic vessels and form new tumors at distant sites from the primary tumor. |
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| single cell undergoes a mutation that causes it to divide repeatedly |
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| a tumor develops and cells within the tumor mutate |
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a cell mutates in such a way that allows it to invade surrounding tissue. |
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| products promote the cell cycle and prevent cell death (apoptosis). |
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| products inhibit the cell cycle and promote apoptosis. |
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| proto-oncogenes that have mutated are cancer-causing genes |
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