Tag: dna - history and structure

Interferons are proteinaceous in nature. These are released by the virally infected and dying cells as a response to the attack. Interferons are named for their ability to interfere with viral replication by protecting cells from virus infections. It induces antiviral mechanism in the neighbouring cells. 

• Lymphokines are a typer of cytokines which are secreted by the lymphocytes (immune cell).
• They are a type of small proteins secreted by cells of the immune system that helps in signalling and effects the behaviour of the neighbouring cells.
• Lymphokines attract the other cells of the immune system such as macrophages and other lymphocytes to an infected site and activate them to prepare for an immune response. 
• They are secreted by the T-lymphocytes.
• Lymphokines help the B- lymphocyte cells to produce antibodies.
• Interferon is a lymphokine secreted by the T-lymphocytes which are responsible for innate and adaptive immunity against viruses, few bacteria and protozoa.
• It is known as Interferon-gamma (IFNγ).
• It inhibits viral replication by its immunostimulatory and immunomodulatory effects.
  
• So, the correct answer is 'Interferon'.

• When the immune system is activated due to the viral infection or other immune response the white blood cells in our body produces Interferons (are a group of proteins called cytokines). These interferons restrict the viral multiplication in the body.
• The name of the interferons comes from their ability to interfere with the production 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 activity of several genes that control the secretion of numerous cellular proteins that affect growth.
• Hence interferon acts against virus.
• So,the correct answer is 'Virus'.

• When the immune system is activated due to the viral infection or other immune response the white blood cells in our body produces Interferons (are a group of proteins called cytokines).
• The name of the interferons comes from their ability to interfere with the production 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 activity of several genes that control the secretion of numerous cellular proteins that affect growth.
• Hence Interferon suppresses the pathogenic activity of Viruses.
• So, the correct answer is 'Viruses'.

• When the immune system is activated due to the viral infection or other immune response the white blood cells in our body produces Interferons (are a group of proteins called cytokines).
• The name of the interferons comes from their ability to interfere with the production 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 activity of several genes that control the secretion of numerous cellular proteins that affect growth.
• Hence a cell coded protein formed in response to infection with most animal viruses is interferon.
• So, the correct answer is 'Interferon'.

Penicillin-antibiotic.

• When the immune system is activated due to the viral infection or other immune response the white blood cells in our body produces Interferons (are a group of proteins called cytokines). Interferons suppress the viral multiplication.
• The name of the interferons comes from their ability to interfere with the production 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 activity of several genes that control the secretion of numerous cellular proteins that affect growth.
• Hence interferons suppresses the pathogenicity of viruses.
• So, the correct answer is 'Viruses'.