1. Roles, processes, organs and cells of the immune system Flashcards
DAMPs
Any non-functional molecules regardless of location
Danger signals
Normal intracellular molecules
PAMPs
On pathogens
Alarmins
- PAMPs
- DAMPs
- Danger signals
Microbiota
Gut flora w/ many diverse microbial communities
Microbiome
Collective genomic content of gut microbiota
Dendritic cell maturation
- MHC II
- CD80 and/or CD86 (connect to CD28)
HLA
Human leukocyte antigen
- Gene complex that encode MHC proteins in humans
Principles of adaptive immune response
- Specificity
- Sensitivity
- Memory
- Clonal selection-based operation
Examples of secondary immune organs
- Lymph nodes
- Spleen
- MALT
- SIS (skin immune system)
- Waldeyer’s ring (tonsils)
Phases of immune response
1) Recognition phase (activation, blast form.)
2) Central phase (cell prolif., differentiation)
3) Effector phase (destruction)
Examples of regulatory cells
- Treg
- Breg
- iDC
Examples of effector cells
- Th1
- B
- mDC
Effects of cytokines
Migration, differentiation, proliferation, vesicle secretion, metabolism, apoptosis
Characteristics of cytokines
- Messenger and regulatory functions
- Function via membrane receptors
- Often transitional effect
- Antagonistic, additive, synergistic effects
- Many different cells secrete same cytokine
- > Have pleiotropic effect