Complement Flashcards
1
Q
C5a
A
Neutrophil Chemotaxis
2
Q
C3a, C4a, C5a
A
Anaphylaxis
3
Q
C5b-C9
A
MAC lysis
Helps kill gram -ve bacteria
Gram -ve bacteria has T cell independant antigens (LPS - no polysaccrahide)
4
Q
Complement Activation
A
- Antibody-antigen mediated (IgG, and IgM fix complement) –> C1
- Lecthin- microbial surface sugars activate C1 like intermediate –> C1
- Alternative pathway- microbial surface proteins–> C3b
5
Q
Inhibitor of Complement to protect self
A
CD55- delay accelerating factor (GPI anchored enzyme - CD59)
C1 esterase inhibitor
6
Q
C3b
A
opsonization