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Microbiology Sept 15th
Lecture
31
Other
Graduate
10/03/2009

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Cards

Term
Define Antigens
Definition
Bacterial or viral transplant molecules that elicit an immune response
Term
What are 2 types of specific defenses?
Definition
Innate and adaptive
Term
Describe innate response
Definition
Phagocytes, macrophages and neutrophils that activate T cells
Term
Describe Humoral response
Definition
Activates B cells
Term
What are some natural barriers?
Definition
Physiological and chemical
Term
Describe Acquired (adaptive) active natural
Definition
Naturally developing a response (flu)
Term
Describe Acquired (adaptive) active artificial
Definition

-Immunizations

-Subcellular fragments

-toxins

Term
Describe Acquired (adaptive) passive artificial
Definition

-Monoclonal Abs

-Snake toxins

-Immune cells

-injection of someone else's Abs

Term
Describe Acquired natural passive
Definition
transfer of immunoglobulins to fetus colostral transfer of IgA
Term
Name and describe 3 types of Acute inflammation
Definition
Vasculature: Pain, warmth, swelling, vasodilation Cellular: Monocytes, Macrophages, Neutrophils Humoral: Complement, cytokines, chemokines
Term
Name the Ab source and Indication for: Diptheria
Definition
Human/Horse prophylaxis: immunodeficiencies
Term
Name the Ab source and Indication for: varicella
Definition
Human: Immunodeficiencies
Term
Name the Ab source and Indication for: gas gangrene, botulism, snake bite, scorpion sting
Definition
Horse: post exposure
Term
Name the Ab source and Indication for: rabies
Definition
Human: post exposure
Term
Name the Ab source and Indication for: hypogammaglobulinemia
Definition
Human: prophylaxis
Term
Name an adaptive advantage of passive immunization
Definition
immediate protection
Term
Name disadvantages of passive immunization
Definition

-short term

-aids/ hep

-GVHD

-serum sickness

Term
Define SCID
Definition
Severe combine immunodeficiency -enzyme deficiency means Ab sites are abnormal since certain cells are unable to produce binding sites -results in early morbidity since patients cant produce Abs
Term
Define 3 inherited cellular immunodeficiency disorders
Definition

-T cell (Di george)Thymus does not develop

-B cell (Brutons) Enzyme def where no IgG is made and lack Ab development

-Phagocytic (Chediak-Higashi) prevents neutrophils from phagocytizing bc of enzyme deficiency (inherited)

Term
Define 1 inherited Humoral immunodeficiency disorders
Definition
Ab complement
Term
Define hyperacute rejection and give 3 sensitizing events
Definition

-Preformed Ab againist HLA

-Pregnancy, blood transfusion, previous transplant

Term
Define acute rejection
Definition
HLA sensitization and HLA specific Ab/T cells are generated bc of foreign material - immune response doesn't do what its supposed to
Term
Chronic rejection
Definition
occurs over many years
Term
Define GVHD
Definition

-can generate immune cells that are againist the host

-replacing diseased bone marrow with new bone marrow

Term
What organ does not require a match?
Definition
The liver
Term
What's reduced immunogenecity?
Definition
you are unable to mount a response or are not as effective at doing so
Term
Define TAA
Definition

tumor associated antigens- new/altered Ag - similar to viral infections

-defective signaling from tumor cells to activate T cells to kill but dont since they cant activate T cells effectively

Term
What type of immunity results from recovery of the mumps
Definition
Natural acquired active immunity
Term
What type of immunity results from immunizations
Definition
Artifical acquired active immunity
Term
Newborns' immunity due to the transfer of Ab across the plasma membrane is what type of immunity?
Definition
Natural acquired passive immunity
Term
Sensitization in relationship to transplantation means...
Definition
immediate rejection of the transplant
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