IMMUNE SYSTEM AND NATURE OF IMMUNITY Flashcards
It is defined as resistance to disease specifically infectious diseases
Immunology
method of scratching the skin and applying pulverized powder from small pox
variolation (innoculation)
method of scratching the skin and applying pulverized powder from small pox
variolation (inoculation)
live attenuated vaccine was discovered by
Luis Pasteur (1880-1881)
virus/ bacteria are weekend through exposure to modifying conditions such as
-chemical treatment
-aging
-hot temp
-cold temp
-repeated in vitro passage
vaccinia pertains to
cowpox
variola major
small pox
variola minor
alastrim
it is a form of immunoprophylaxis
-an antigen suspension derived from a pathogen
Vaccine
pertains to live pathogen that have been weakened
Attenuate
pertains to killed microorganism
Inactivated
Bacterial toxins that have been chemically inactivated so the they are not pathogenic
Toxoid
Biochemically purified components of a microorganism
Purified components
Factors affect the quality of immune response to a vaccine antigen `
Age
individual’s immune status
nature of vaccine
small pox vaccination
Edward jenner
live attenuated
Luis pasteur
cellular immunity through phagocytosis
Ellie metchnikoff
Antibody formation theory
Paul ehrlich
development of polio vaccine
Jonas salk and Albert bruce sabin
Vaccine againts yellow fever
walter reed
clonal selection theory
Sir Macfarlene Burnet
First monoclonal antibodies
George J.F. Kohler
A phenomenon in which exposure to one agent produces protection against another agent is known as
cross-immunity
-present at birth
-standardized response for all antigen
-lacks memory
-not specific
-immediate response
-responsible for the first and second defense in the body
Natural/ innate immunity
-not present at birth
-diverse response for each antigen
-specific
-slow (3-5) response
-capable of recalling (memory)
-responsible for the third line of defense
Acquired/ adaptive immunity
Whate are Mechanical barriers
Skin, mucous membrane, cilia, mucus
chemical barrier
lysozyme (tears and saliva)
Biological Mucosa
Skin, mucous membrane
normal flora
primary inflammatory response
vasodilation
the process by which cells are capable of moving from the circulating blood to the tissues squeezing through the wall of a blood vessel
diapedesis/ white blood cell extravasation
resolution and repair is initiated by
Fibroblast proliferation
what are the cardinal signs of inflammation
-rubor=redness
-dolor=pain
-calor= heat
-tumor= swelling
it is loss or diminished function
functio laesa
natural exposure , infection
active natural
vaccination
Active artifcial
mother to fetus
Passive natural
injection of artificial serum/antibody coming form other sources such as animal
Passive artificial
-long term immunity
-slow response
-immune system is challebge
active
-short term immunity but immediate response
-antibody is readily available
-immune system is not challenge
passive
key cell involve in the adaptive immune response
lymphocyte
T cells exposed to antigen
Activated T cells
Receptor of IL 2
CD 25
it produces cytokines/lymphokines
Sensitized T cells
gene coding for the MHC molecules in humans are found on the short arm of
chromosome 6
MHC molecules are produced/ synthesized in the
rough endoplasmic reticulum
fragment of antigen binding
FAb
fragments of crystallizable
FC region
the carboxy terminal end of each chain contains the
constant region
the amino terminal end of each chain contains the
variable region
an immortal cell capable of producing indefinite sequence of nucleotides
Hybridoma
surfactant used in Hybridoma
PEG (polyethylene glycol)
order of discovery for complement system
C 1,2,3,4,5,6,7,8,9
order of activation in complement system
C 1,4,2,3,5,6,7,8,9
Act as powerful opsonin
C3b
Act as chemotaxin
C5a
Acts a anaphylatoxin
c3a, c4a,c5a
C3 convertase for classical and lectin
C4b2a
C3 convertase for alternative pathway
C3bBb
C5 convertase for classical and lectin
C4b2a3b
C3 convertase for alternative pathway
C3bBb3b
key determinant in all pathway and the most concentrated complement component
C3
most common deficiency of complement components
C2 (lupus-like syndrome; recurrent infections, atherosclerosis
Most severe deficiency of complement components
C3 (severe recurrent infection, glomerulonephritis (S.pyogenes infection)
defined as Heightened state of immune responsiveness
Hypersensitivity reaction
no antibody is detectable
lag phase
the antibody titer increases logarithmically
Log phase
the antibody stabilizes
plateau phase
the antibody catabolizes
decline phase