Which cells exclusively make alpha and beta interferons?

Which cells exclusively make alpha and beta interferons?

• A. Immune system macrophages
• B. Virus-infected cells
• C. Helper T cells
• D. Natural killer cells

Answer: (B)

The correct choice highlights that virus-infected cells are responsible for the production of alpha and beta interferons. Alpha and beta interferons are types of cytokines that are crucial for the immune response against viral infections. When cells become infected with a virus, they recognize the viral components and respond by producing these interferons.

This production is part of the innate immune response aimed at establishing an antiviral state in neighboring uninfected cells, thereby helping to limit viral replication and spread. The release of interferons leads to the activation of various immune cells and enhances the overall immune response.

In contrast, other cell types mentioned do not exclusively produce alpha and beta interferons. Macrophages can produce a range of cytokines, but they are not the primary source of alpha and beta interferons. Helper T cells primarily secrete other types of cytokines and play a role in the adaptive immune response, while natural killer cells are involved in recognizing and destroying virus-infected cells, but do not produce these interferons. Thus, the specificity of virus-infected cells in producing alpha and beta interferons is key to understanding their role in the immune response.