Cancer is a complex disease that involves many different changes in the body. Some of the key mechanisms of cancer include:
* Cell growth and division: Cancer cells divide uncontrollably, forming new cells that can spread to other parts of the body.
* DNA damage: Damage to DNA can lead to mutations that cause cells to become cancerous.
* Angiogenesis: Cancer cells need to form new blood vessels in order to grow and spread. Angiogenesis is the process of forming new blood vessels.
* Metastasis: Metastasis is the process by which cancer cells spread to other parts of the body.
* Immune system evasion: Cancer cells can evade the immune system, which normally helps to protect the body from disease.
Mechanisms of action of anticancer drugs
Anticancer drugs work by targeting different mechanisms of cancer. Some of the most common mechanisms of action of anticancer drugs include:
* Cell cycle inhibition: Anticancer drugs can inhibit the cell cycle, which is the process by which cells divide.
* DNA damage: Anticancer drugs can damage DNA, which can lead to cell death or mutations that can cause cells to become cancerous.
* Anti-angiogenesis: Anticancer drugs can inhibit angiogenesis, which is the process of forming new blood vessels.
* Immunotherapy: Immunotherapy drugs help to boost the immune system's ability to recognize and destroy cancer cells.
* Targeted therapy: Targeted therapy drugs target specific proteins that are involved in the growth and spread of cancer cells.
The type of anticancer drug that is used to treat a particular cancer depends on the type of cancer, the stage of the cancer, and the patient's overall health.
Combination therapy
Combination therapy is often used to treat cancer. Combination therapy involves using two or more anticancer drugs together. This can help to improve the effectiveness of treatment and reduce the risk of side effects.