PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
) Virus-infected cells produce ____, proteins that help neighboring cells fight further viral infections.
A
lysozymes
B
interferons
C
histamines
D
interleukin-2
Explanation: 

Detailed explanation-1: -Interferon is secreted by cells in response to stimulation by a virus or other foreign substance, but it does not directly inhibit the virus’s multiplication. Rather, it stimulates the infected cells and those nearby to produce proteins that prevent the virus from replicating within them.

Detailed explanation-2: -Virally infected cells produce and release small proteins called interferons, which play a role in immune protection against viruses. Interferons prevent replication of viruses, by directly interfering with their ability to replicate within an infected cell.

Detailed explanation-3: -Interferons. Most virus-infected cells produce a set of proteins called interferons, which are released and react with uninfected cells so as to render them resistant to infection with viruses.

Detailed explanation-4: -Interferons are small proteins produced by cells infected by viruses that travel to nearby uninfected cells. Interferons are a type of cytokines that are released by the virus-infected cells to protect the neighboring uninfected cells from the viruses.

Detailed explanation-5: -a | Infected cells of the vertebrate body produce type I interferons (IFNs) in response to viral infection and/or contact with viral products. Feedback of type I IFNs onto infected and bystander cells leads to the induction of IFN-stimulated genes (ISGs), which function to block the viral replication cycle.

There is 1 question to complete.