Technetium (99mTc) arcitumomab
Technetium (99mTc) arcitumomab is a radioimmunotherapy agent used in the treatment of certain types of cancer. It is a type of monoclonal antibody that is labeled with the radioisotope technetium-99m.
History[edit | edit source]
Technetium (99mTc) arcitumomab was developed as a result of advancements in the field of nuclear medicine and immunology. The development of monoclonal antibodies in the 1970s opened up new possibilities for targeted cancer therapy, and the discovery of technetium-99m in the 1960s provided a suitable radioisotope for labeling these antibodies.
Mechanism of Action[edit | edit source]
Technetium (99mTc) arcitumomab works by binding to the CD20 antigen on the surface of B cells. This allows the technetium-99m to deliver a dose of radiation directly to the cancer cells, causing them to die. The use of a monoclonal antibody ensures that the radiation is delivered specifically to the cancer cells, minimizing damage to healthy tissue.
Clinical Use[edit | edit source]
Technetium (99mTc) arcitumomab is used in the treatment of non-Hodgkin's lymphoma, a type of cancer that affects the lymphatic system. It is typically used in combination with other treatments, such as chemotherapy and radiation therapy.
Side Effects[edit | edit source]
Like all radiotherapy treatments, technetium (99mTc) arcitumomab can cause side effects. These can include nausea, vomiting, fatigue, and hair loss. More serious side effects can include bone marrow suppression, which can lead to an increased risk of infection and bleeding.
Future Developments[edit | edit source]
Research is ongoing into the use of technetium (99mTc) arcitumomab in the treatment of other types of cancer. There is also interest in developing new methods of labeling monoclonal antibodies with radioisotopes, in order to improve the effectiveness and safety of radioimmunotherapy.
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