5. Enzymes involved in the development of cancer

Cancers, neurodegenerative diseases, diabetes and AIDS are the diseases that have marked the end of the 20th century and the beginning of the 21st in terms of their recent incidence. That said, we must not forget other diseases, some of which have already been mentioned.

Increased life expectancy, harmful environmental factors (pollutants, food additives, cleaning products), certain "over-consumption" products (cigarettes, alcohol), various physical agents (UV rays, X-rays, radioactivity) or certain infectious agents (papilloma virus, hepatitis B and C viruses, helicobacter pylori) are all factors that induce cancer.

• Tumors are abnormal cell proliferations that localize either to a specific organ tissue or to a tissue system. This proliferation gives rise to tissue masses known as tumors. A tumor can be benign or malignant....