In the specific (adaptive) branch of the immune system, _______ Play a direct ro
ID: 3472135 • Letter: I
Question
In the specific (adaptive) branch of the immune system, _______ Play a direct role in destroying virus infected cells
a. Interferons
b. Plasma B Cells
c. CD 8 cells
d. T Killer cells
e. c and d are correct
I've ruled out (a) since interferons are in the innate/non-specific branch, but am still not sure of the answer. We haven't went over all of them in great detail yet but I cannot seem to find the information to answer the question anywhere in the text. Plasma B cells 'indirectly' protect the immune system from my understanding because they require T Helper Cells. CD 8 and T Killer cells seem to be the same thing, but our professor had mentioned that T killer cells attack our own immune system in a negative way, unless I misunderstood his explanation.
Explanation / Answer
1). The CD-8 cells and the killer T cells kills the cancer particularly infected with virus.
Interferons are the group of signaling protein made & are released by host cells in response to the presence of several pathogens e.g. viruses , bacteria etc. They come under the category of non specific defense mechanism.
Plasma B cells are the type of white blood cells that produce large amount of antibodies.
These cells depend upon the T lymphocytes for their working.
These plasma cells produce only a single bind of antibody therefore they are antigen specific.
The immune system response is induced by the body with help of two type of lymphocytes the regulator T cells & the effector T cells
Regulator T cell recognizes the components produced by the body itself & protect the tissue from attack using the immune system.
Effector cells recognize the foreign components & destroy them.
Autoreactive T lymphocytes are key players in autoimmune diseases. They can act both as regulatory and effector cells.