Question

Which of the following staement is related to interferon?

• A. It is a protein released by animal cells
• B. It is released in response to the entry of a virus
• C. It has the property of inhibiting virus replication
• D. All of the above

Answer 1

The correct option is D All of the above

Interferons are a group of proteins called cytokines, produced by animal white blood cells, fibroblasts or T-cells as part of the immune response to a viral infection or other immune trigger. The name of proteins comes from their ability to interfere with the replication of new virus particles.
Interferons do not directly kill viral or cancerous cells. They boost the immune system response and reduce the growth of cancer cells by regulating the action of several genes that control the secretion of numerous cellular proteins that affect the growth.
The virus infected cells secrete a special protein that causes both infected and non infected cells, to produce other proteins that prevent viruses from replicating and protecting the non infected cells.
So the correct option is 'All of the above'.