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  #1  
Old 11-02-2012
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Default Q: Immunology 3

One of the following causes increased proliferation of T lymphocytes:
A. Pokeweed
B. Phytohemagglutinins
C. Lipopolysachharide
D. IL-4
E. Fas molecule
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  #2  
Old 11-02-2012
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B ... Phytohemagglutinins ..

Pokewood mitigen is a B cell mitogen
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Old 11-02-2012
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ya agree with @alice
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Old 11-02-2012
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PHA...that's what I used today to stimulate Tcells
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Old 11-02-2012
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Perfecto!............what is concanavalin A:
a. T cell mitogen
b. B cell mitogen
c. complement activator
d. mimics TNF-alpha

True about lipopolysaccharide is:
a. T cell mitogen
b. B cell mitogen
c. complement activator
d. mimics TNF-alpha
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Old 11-02-2012
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Quote:
Originally Posted by subbi View Post
Perfecto!............what is concanavalin A:
a. T cell mitogen
b. B cell mitogen
c. complement activator
d. mimics TNF-alpha

True about lipopolysaccharide is:
a. T cell mitogen
b. B cell mitogen
c. complement activator
d. mimics TNF-alpha
1. A(remember reading somewhere,but not sure) 2. B(endotoxin)

thanks
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Old 11-03-2012
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Quote:
Originally Posted by venky2600 View Post
1. A(remember reading somewhere,but not sure) 2. B(endotoxin)

thanks
Yeah concanavalin A is a T cell mitogen and Lipopolysaccharide is a B cell mitogen..................good to go fren.
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Old 11-03-2012
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Quote:
Originally Posted by subbi View Post
Yeah concanavalin A is a T cell mitogen and Lipopolysaccharide is a B cell mitogen..................good to go fren.
thanks but..why..? i mean do we have to remember like that..?

for LPS --B cell mitogen makes sense----coz it's polysaccharide not peptide to present to T cells(so Tcell independant antigen)

but regarding concanavalin......i dont know anything abt..?
if you know anything abt it pls do share.......

thanks
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Old 11-03-2012
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Ya, as I went to some of the questions, the question stem gives a vignette of immune cells treated with mitogens like concanavalin based on which we should know that the T cells are proliferating......................one e.g. is
(in short)- immune cells are treated with concanavalin A. which of the following is not a mitogen but does a similar job??
The answer here is IL-2 which is involved in proliferation and differentiation of T cells............hope this helps.........thanx............there are only 4 of these mitogens we should at least know of...........
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Old 11-03-2012
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Quote:
Originally Posted by subbi View Post
One of the following causes increased proliferation of T lymphocytes:
A. Pokeweed
B. Phytohemagglutinins
C. Lipopolysachharide
D. IL-4
E. Fas molecule
Thanks for question. I remember reading about these but these were not even in my subconscious mind. hehehe
So searched wiki
Got this- Hope it helps
Q: Immunology 3-mitogen-promote-mitosis.png
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One day i will infect these microbes and they will search for "Anti-MEbiotic"....
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  #11  
Old 11-03-2012
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Quote:
Originally Posted by subbi View Post
Ya, as I went to some of the questions, the question stem gives a vignette of immune cells treated with mitogens like concanavalin based on which we should know that the T cells are proliferating......................one e.g. is
(in short)- immune cells are treated with concanavalin A. which of the following is not a mitogen but does a similar job??
The answer here is IL-2 which is involved in proliferation and differentiation of T cells............hope this helps.........thanx............there are only 4 of these mitogens we should at least know of...........
GREATE Qs subby

what´s the source of the Qs?
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  #12  
Old 11-03-2012
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Thanx Kookkiller and Fuser....................these are from S-Bank..........lol
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