Antigen Processing

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Cynthia Ozick

Readings Presentations Outline Questions Multiple Choice Key Terms Updated 09/11/00

Who Am I? I discovered that antigens must first be processed by macrophages before the antigen can be recognized by T cells

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Antigen Processing

ASSIGNED READING

Kuby's Immunology 4th Ed \chapter 8 pg201-214
Kuby's Immunology 3rd Ed Chapter 10: pp 249-262

OUTLINE/SUMMARY

  1. Self MHC Restriction of T Cells
  2. Role of Antigen Presenting Cells
  3. Two Presentation Pathways
  4. Cytosolic Pathway: Endogenous Antigens
  5. Endocytic Pathway: Exogenous Antigens
  6. Clinical Applications
DEFINE THE FOLLOWING KEY TERMS:
antigen presenting cells cytosolic pathway[] endocytic pathway[]
professional antigen presenting cells ubiquitin [] proteosome[]
nonprofessional antigen presenting cells calnexin[] invariant (Ii) chain []
Transportors associated with antigen processing (TAP) CLIP molecular chaperones[]

QUESTIONS

  1. Describe self MHC restriction.
  2. Compare the cytosolic pathway for antigen presentation with the endocytic pathway for antigen presentation
  3. Compare professional with non professional antigen presenting cells.
  4. Draw a flow diagram comparing cytosolic and endocytic pathways for processing antigens
  5. Describe peptide generation by proteasomes.
  6. Describe transport of antigenic peptides from the cytosol to the Rough Endoplasmic reticulum
  7. Draw a concept map for the separate antigen presenting pathways for endogenous and exogenous antigens.
  8. Describe the assembly of MHC-II molecules within the Rough endoplasmic reticulum.
  9. Describe the development of a viral vaccine that uses the cytosolic pathway.
  10. Describe the development of a vaccine that used