What is a major characteristic of adoptive immunotherapy?

What is a major characteristic of adoptive immunotherapy?

• A. It involves the transfer of cells to deliver immunity.
• B. It involves the transfer of cytokines to deliver immunity.
• C. It can only occur in the presence of autologous cells.
• D. Its purpose is to increase the humoral immune response.

Answer: (A)

Transferring immune cells to deliver immunity is the defining feature of adoptive immunotherapy. In this approach, immune cells are collected from the patient or a donor, sometimes genetically modified or expanded outside the body, and then infused back to attack disease such as cancer or infections. This puts active cellular effectors—like T cells or natural killer cells—directly into the patient to recognize and destroy target cells. This is different from therapies that rely on cytokines to stimulate the immune system, which do not involve delivering actual immune cells. It’s also not limited to autologous sources; cells from a donor (allogeneic) can be used in some cases. Finally, while humoral responses (antibody-based) are important in immunity, adoptive immunotherapy emphasizes cellular players and their targeted activity, rather than increasing antibodies.

Transferring immune cells to deliver immunity is the defining feature of adoptive immunotherapy. In this approach, immune cells are collected from the patient or a donor, sometimes genetically modified or expanded outside the body, and then infused back to attack disease such as cancer or infections. This puts active cellular effectors—like T cells or natural killer cells—directly into the patient to recognize and destroy target cells.

This is different from therapies that rely on cytokines to stimulate the immune system, which do not involve delivering actual immune cells. It’s also not limited to autologous sources; cells from a donor (allogeneic) can be used in some cases. Finally, while humoral responses (antibody-based) are important in immunity, adoptive immunotherapy emphasizes cellular players and their targeted activity, rather than increasing antibodies.