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MCB 50-Immunology Midterm 1
Covers Immune cells, B cells, T cells, MHC, Viruses, etc.
72
Immunology
Undergraduate 1
02/22/2012

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Cards

Term
IL-1, IL-6, TNF-alpha
Definition
Inflammatory cytokines produced by macrophages (3)
Term
IL-12
Definition
Th1 pivotal cytokine
Term
IL-4
Definition
Th2 pivotal cytokine
Term
IL-2, TNF-alpha, TNF-gamma
Definition
Th1 secreted cytokines
Term
IL-4, IL-6, IL-10
Definition
Th2 secreted cytokines
Term
Activate macrophages, CTL's
Definition
Th1 function
Term
Activates B cells
Definition
Th2 function
Term
Perforin/Granzyme B, Fas-Fas Ligand
Definition
CTL's two pathways to kill
Term
A,B,C
Definition
Class I MHC molecule alleles
Term
DR, DP, DQ
Definition
Class II MHC molecule alleles
Term
Neutralization
Definition
When ab blocks a molecule on pathogen surface that prevents in from entry into host cells
Term
Opsonization
Definition
When ab enhances phagocytosis
Term
Antibody-dependent cell-mediated cytotoxicity
Definition
When ab enables cells of the immune system to kill off infected cells
Term
Size, antigen dose, complexity
Definition
Factors that make a good immunogen (3)
Term
3-d peptides, carbohydrates, lipids
Definition
B-cell epitopes
Term
Linear peptide sequences
Definition
T-cell epitopes
Term
Vasodilation
Definition
Increase in diameter of blood vessels
Term
Vasopermeability
Definition
Increased capillary permeability for more passage of fluid and cells
Term
Oxygen radicals and enzymes
Definition
Molecular mediators released from granules by neutrophils
Term
Inflammation
Definition
The "danger signal" of the immune response
Term
Bone marrow, thymus
Definition
Primary immune organs
Term
Spleen, lymph nodes
Definition
Secondary immune organs
Term
Neutrophils, Basophils, Eosinophils, Mast Cells
Definition
4 kinds of PMN's
Term
macrophages, dendritic cells
Definition
2 kinds of Monocytes
Term
T-cells, B-cells, NK cells
Definition
3 kinds of lymphocytes
Term
DNA (transcription) to RNA (translation) to protein
Definition
Central dogma
Term
Ligands
Definition
Proteins that bind receptors
Term
Receptors
Definition
Proteins on cell surface that can bind to trigger endocytosis
Term
Cross-linking
Definition
When multiple receptors bind multiple ligands
Term
Cytokines
Definition
Immune hormones, messengers that control and regulate the immune system
Term
Class II MHC
Definition
This class of MHC is only expressed on APC's
Term
Cleft/peptide binding groove
Definition
Where antigen binds to the MHC molecule
Term
Proteosome
Definition
Organelle where viral proteins are digested into peptides
Term
Interferons
Definition
Signals that inhibit viral replication inside cell
Term
DNA integration
Definition
This is required for virus latency
Term
Fab region
Definition
Ag binding portion of ab molecule
Term
Fc region
Definition
Where the antibodies can react with other immune cells to activate pathogen killing
Term
IgG
Definition
Memory ab isotype, is a monomer
Term
IgM
Definition
First antibody made against infection, is a pentamer
Term
AB
Definition
Universal blood recipient
Term
O
Definition
Universal blood donor
Term
Naive
Definition
Immune cells that haven't encountered antigen
Term
Effector
Definition
Immune cells that have been activated
Term
Apoptosis
Definition
Programmed cell death
Term
Polymorphism
Definition
Multiple functional forms of same gene
Term
Syngeneic
Definition
identical at all MHC loci
Term
Allogeneic
Definition
DIfferent at MHC different alleles
Term
Immunocompromised
Definition
Weakened or slow immune response
Term
Immunocompetent
Definition
Healthy immune system
Term
Pathogen
Definition
Replicating organisms that can cause harm or disease
Term
Antigen
Definition
Any molecule that the immune system responds to
Term
Liver
Definition
The acute phase response acts results from inflammatory cytokines acting on this organ
Term
Immunogens
Definition
Complexes of molecules containing antigens that when injected, elicit the adaptive immune response
Term
IgM-IgG-IgE-IgA
Definition
Order of isotype switching, is irreversible
Term
Activation, proliferation, differentiation
Definition
3 stages of B and T cells
Term
MHC restriction
Definition
T cells will only recognize antigens presented by own MHC molecules
Term
Antigen specificity
Definition
T cells only recognize one unique antigen presented on their own MHC
Term
Biologic response gradient
Definition
aka disease pyramid
Term
Vector
Definition
Another organism or object that helps in transfer of disease
Term
Zoonosis
Definition
Infectious agents that are primarily transmitted between animals but can infect humans
Term
Horizontal
Definition
Transmission from person to person
Term
Vertical
Definition
Transmission from parent to offspring
Term
Dendritic cells
Definition
Control the initial activation of naive T cells in lymph nodes and spleen
Term
Class II MHC
Definition
Exogenous pathogens are presented on this MHC
Term
Class I
Definition
Endogenous pathogens are presented on this MHC
Term
Viral tropism
Definition
Viruses are selective for infecting certain cells
Term
Oncogenic
Definition
Cancer-causing
Term
Mutation, antigenic variants, latency, immunological inhibitors, immune privileged cells
Definition
Viral responses to evade immune system
Term
Coronaviruses, rhinoviruses, polio, influenza, rabies, measles
Definition
Examples of RNA viruses
Term
Hepatitis B Virus, Epstein Barr Virus, Herpes Simplex Virus, Varicella Zoster Virus
Definition
Examples of DNA viruses
Term
Smaller size and genome, fewer proteins, fast growth and replication, often lytic
Definition
Characteristics of RNA viruses
Term
Larger genome, DNA integration for latency, oncogenic
Definition
Characteristics of DNA viruses
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