Question

Interferons are secreted by:

• A. Liver
• B. Spleen
• C. Virus-infected cells
• D. Lymphocytes

Answer 1

Answer:

C. Virus-infected cells

• Interferons are proteins that are primarily secreted by virus-infected cells in response to viral infection.

• A virus-infected cell releases interferons to signal neighboring cells and the immune system that the virus is present.

• Interferons play a crucial role in coordinating the body’s immune response to combat viral infections.

• While interferons are mainly produced by virus-infected cells, they can also be produced by other cell types, such as lymphocytes, including natural killer (NK) cells, B cells, and T cells, in response to viral infection or immune stimulation.

• Nevertheless, interferons are not secreted by all cells in the body.

• The liver and spleen, as organs, do not produce interferons themselves, but their antiviral effects may affect them.