Cancer is a generic term for a large group of diseases that can affect any part of the body. Other terms used are malignant tumours and neoplasms. One defining feature of cancer is the rapid creation of abnormal cells that grow beyond their usual boundaries, and which can then invade adjoining parts of the body and spread to other organs. This process is referred to as metastasis. Metastases are the major cause of death from cancer.
Cancer arises from one single cell. The transformation from a normal cell into a tumour cell is a multistage process, typically a progression from a pre-cancerous lesion to malignant tumours. These changes are the result of the interaction between a person's genetic factors and three categories of external agents, including:
- physical carcinogens, such as ultraviolet and ionizing radiation;
- chemical carcinogens, such as asbestos, components of tobacco smoke, aflatoxin (a food contaminant) and arsenic (a drinking water contaminant); and
- biological carcinogens, such as infections from certain viruses, bacteria or parasites.
Ageing is another fundamental factor for the development of cancer. The incidence of cancer rises dramatically with age, most likely due to a build up of risks for specific cancers that increase with age. The overall risk accumulation is combined with the tendency for cellular repair mechanisms to be less effective as a person grows older.
Thus the growth of cancer takes a long time over many years or decades. A cancerous tumor is not an instant phenomenon, it is a result of a long process that take several years to form.
The slowness in the growth gives us the opportunity to intervene to block the rebel cell from maturing into a cancer cell.
How Cancer Develop
Immune System - Natural Killer Cell
Preventing Cancer Growth
- Surgery
- Radiotherapy
- Chemotherapy ( Usually done together ).
Limitations
- Surgery – cannot eliminate all cancerous cells.
- Radiotherapy ( X rays) – radiation will kill some of the normal cells too.
- Chemotherapy by medication or drugs to reach cancerous cells – many side effects including hair loss or drop in immune cell, organs complication.
Anti-Angiogenesis Metronomic is a new approaches by attacking the tumor’s blood supply thus depriving it food. But anti-Angiogenesis Metronomic has to be a continuous process.
The good news is that a significant quantities of some Anti-Angiogenesis Metronomic molecules are present in fruits and vegetables.
Angiogenesis –an essential process in the growth of a Tumor
