Angiogenesis - Angiogenesis Tumors need a blood supply for...

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Angiogenesis Tumors need a blood supply for food and oxygen. Cancer cells release growth factors that cause nearby blood vessels to produce branches that grow into the cancerous tissue. Immune System The immune system can recognize foreign cells and invaders (bacteria, viruses, etc.) because they have proteins and other structures that are different from the body’s "self" markers. Cancer cells may have mutated "self" markers and are often destroyed by the immune system. Prognosis A persons prognosis is less favorable with the occurrence of each step below: 1. the tumor has invaded surrounding tissues 2. there is lymph node involvement 3. malignant tumors occur in other parts of the body Genes and Cancer Oncogenes Proto-oncogenes are normal genes that are somehow involved in this process of cell division. Their DNA may contain the code for growth factors or some chemical that needs to be activated in order to stimulate cell division.
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.

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Angiogenesis - Angiogenesis Tumors need a blood supply for...

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