Antibodeis Flashcards
Ab isotype is different in ?
Heavy chain
J chain is fond in ?
IgM and IgA
What is the type is used for paternity testing ?
Allotypes
What is the It is the major Ig in normal
human serum (70-75%) of
the total Ig pool ?
IgG
IgG consists of a ?
monomeric unit
What is the main antibody in the secondary response?
IgG
What is the type of complement in the IgG ?
Classical pathway
What is the function of IgG ?
1- classical pathway activation
2- placenta transfer ( passive immunity)
3- Neutralization of toxins
4- Opsonization
5- 2ndry IR (Memory cell receptor)
What is the main antibody in the primary immune response
IgM
What is the antibodies used in classical pathway ?
IgM and IgG
IgM don’t passive placenta so it is used to diagnosis of ?
1- Intrauterine fetal infection
2- re correct infevtion
What is the antibody aginst the blood group ?
IgM
What is the function of IgM ? ( BCR I )
1- BCR
2- Baby intrauterine infection
3- Blood groups (anti-A & anti-B)
4- Bacteremia
5- CLassical pathway activation
6- Recent infection
7- 1ry IR
8- Thymus Independent Ags
What is the antibody is the Mucous Membranes & Mucus ?
IgA
What is the antibody fond in the Brest milk ?
IgA
can be inactivated by an IgA
protease produced by gonococci,
pneumococci and H. influenza?
IgA1
is more important in mucosal
immunity against such pathogens ?
IgA2
What is the function of IgA ? ( GPA )
1- Gate keeper
2- Prevents Adherence & Attachment of organisms
3- Prevents Autoimmune diseases
4- Prevents Allergy
Smooth muscle contraction, increased
vascular permeability, irritation ?
Histamine
Smooth muscle contraction, inflammation, irritation ?
Kinins
Damage tissues and activate complement ?
Proteases
Slow prolonged smooth muscle contraction ?
Leukotrienes
Systemic allergy from type I hypersensitivity ?
anaphylactic shock
Hypersensitivity reaction in respiratory tract from type I hypersensitivity ?
allergic rhinitis, allergic asthma
Hypersensitivity reaction in gastrointestinal tract from type I hypersensitivity ?
Food allergies
hypersensitivity reaction in skin from type I hypersensitivity ?
atopic dermatitis, urticaria
What is the function of IgE ? ( 3 HE )
1- Homocytotropic
2- Helminthis (ADCC) (Hygeine)
3- Hypersensitivty reaction type 1