Humoral Immunity Flashcards
1
Q
IgM class switch signal
A
Nothing!
2
Q
IgE class switch signal
A
IL4 from Th2 and IL4+ Tfh
3
Q
IgG class switch signal
A
IFNgamma from Th1
4
Q
IgA class switch signal
A
TGFbeta from Treg and Macrophages
5
Q
Lymphoma
A
Starts in germinal centers
Ig gene mutation can incorporate oncogenes or
make self reactive B cells
6
Q
MASP1 Action
A
Binds MBL, MASP2 and MASP3
Activates MASP3
7
Q
MASP2 Action
A
Binds Lectins
8
Q
MASP3 Action
A
Cleaves C4