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Access to memory cells

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  • 1. Access to memory cells Eman abd elraouf ahmed Immunology department
  • 2. The content Innate and adaptive immune system Memory cells
  • 3. Comparison:
  • 4. Myeloid and lymphoid
  • 5. Innate and adaptive
  • 6. Innate and adaptive immune system
  • 7. Innate and adaptive immune system
  • 8. Innate and adaptive immune system
  • 9. Mechanism of innate and adaptive immune cells
  • 10. cytokines
  • 11. Cytokines:
  • 12. Immune response
  • 13. Memory cell
  • 14. Defination:memory cells Immunological memory is one of the features that define the adaptive immune response: by generating specific memory cells after infection or vaccination, the host provides itself with a set of cells and molecules that can prevent future infections and disease. the critical role CD4 T cells play in all adaptive primary immune responses
  • 15. comparison
  • 16. Comment figure 1 Comparison of naïve and memory CD4 T cells. Naïve T cells require signals from interleukin (IL)-7 and major histocompatibility complex (MHC) class II molecules to survive. Activation of naïve T cells occurs following interactions with antigen (Ag)-loaded dendritic cells (DCs) that express costimulatory molecules at a high level. Memory CD4 T cells receive survival signals both from IL-7 and IL-15 and there may be a role for MHC II. Activation can occur in the presence of lower levels of peptide–MHC and costimulatory signals. Following activation, memory cells proliferate less than primary responding cells but can produce a greater effector response.
  • 17. www.nature.com/icb/journalhttp:// .html1f200816/fig_tab/icb4/n86/v
  • 18. Pathway of memory cells
  • 19. Memory-B cell
  • 20. References: -innate-in-changes-associated-age-projects/discovering-http://www.bowdish.ca/lab/current infection/-to-susceptibility-with-correlate-that-immunity http://sepa.duq.edu/movies/ocos.html /2855788http://www.ncbi.nlm.nih.gov/pmc/articles/PMC