Foundations in immunology 1-3 Flashcards
Macrophage
Give off chemicals to restrict blood flow
Produce cytokines
Complement
- lysis of microbes
- promote phagocytosis
- Stimulate inflammation
- Stimulate antibody production
Non specific humoral response
- Growth inhibitor
- Enzyme inhibitor
- lysins
- Complement proteins - opsonisation
Classical pathway
c3 then c5 convertase
Antibody
Alternative pathway
c3 protein
Lectin pathway
Absence of antibody
HEV
Spaces do lymphocytes can escape and its a one way route
What separates red and white pulp in spleen?
Marginal zone
MHC
TCR recognises an antibody when bound to MHC
T helper stimulate B cell CD4
T cytoxic CD8
MHC 1
CD8
MHC2
CD4
Antibody signalling part
Fc - constant region
Heavy and light chains
Light chain
lamda and kappa = only 1 type present so identical
Heavy chain
5 types - gama, omega, alpha, micro and E
IgM
Fix complement and opsonisation
produced first
IgG
Opsoniser
IgE
Allergy
IgA
Mucousal
How can antibodies be flexible?
Position of epitope