Immunity-Autoimmunity Flashcards
Autoimmunity definition ??
Immune response against self antigens due to loss of self tolerance in B & T cells or both
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Autoimmune disease ?? Def
The D caused by autoimmunity are referred to as AID
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Pernicious anemia organ ??
Gastric parietal cell
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Hashimotos thyroiditis organ ??
Thyroid gland
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Myasthenia gravis D organ >??
Muscle
e
Autoimmune haemolytic anemia organ ??
Erythrocytes
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Idiopathic thrombocytopenic purpura organ ??
Platelets
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SLE organ ??
Multi system
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Rheumatic fever organ ??
Joints & heart valves
Rheumatoid arthritis organ ??
Joints and organs
Mechanism of autoimmunity 4 point ??
- Molecular mimicry
2.Epitope spreading
3.Failure of Treg
4.NeoAntigens
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Molecular mimicry - Tell in your own word ??
- AA sequence of Self Atg = AA sequence of Microbes Atg
- Immune response against microbes Atg
- Activation of self reactive lymphocytes
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Example of Molecular mimicry ??
- GBS
- Reiters syndrome
- Rheumatic heart D
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Reiters syndrome microbes ??
- Shigella
- Chlamydia
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Guillain Barre syndrome microbes ??
- Campylobacter
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