Ijpsr (2009), Issue 1, Vol

Targeted Therapy: In this therapy, changes in a cancer cell that help them divide, spread and grow by targeting and immune system also boost. For example, monoclonal antibodies, and small- molecule drugs. This therapy is a foundation of precision medicine. In target therapy, specific proteins that help the tumor to grow and spread get interfere to treat cancer. This therapy can treat cancer in different ways, include: ^42-45

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  It helps the immune system to destroy cancer cells by marking the cells by which the immune system can easily identify and destroy the cancer cells.
  
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  It stops the growth of cancer cells, interfering with proteins that carry the signal on its surface and preventing them from telling the cells to divide. Cancer cells do changes in the proteins that carry the signals to divide, whether the signal is present or not, the cancer cells divide.
  
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  It stops the signals which help to form blood vessels, by interfering with the signals to prevent blood supply, or if the tumor has a blood supply, then this therapy is used to shrink the tumor by the death of those blood supply.
  

For the growth of a tumor, it requires new blood vessels and form in response to the tumor. The therapy is called angiogenesis inhibitors.

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  It delivers the cell-killing substance to cancer cells, by attaching the substance on the cell surface and cell take up these substances and can cause them to die. Like monoclonal antibodies, which are combined with chemotherapy drugs, toxins, and radiation.
  
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  It can cause the death of cancer cells by the natural process of cell death.
  
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  It can prevent the production of some hormones which are responsible for the growth of prostate and breast cancer. Hormone therapy is a type of target therapy.
  

Types of Target Therapy:

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  Monoclonal Antibody: These antibodies are get attached to specific targets found on cancer cells and mark cancer cells and help the immune system to find and destroy it. Some antibodies also stop the growth of cancer cells and made self-destructed. These antibodies are proteins that are made in a laboratory.
  
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