Do Macrophages Have Both MHC I and MHC II Molecules on Their Surface?

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SUMMARY

Macrophages possess both MHC I and MHC II molecules on their surface, confirming their classification as nucleated cells and Antigen Presenting Cells (APCs). This aligns with established immunological principles where all nucleated cells express MHC I, while specific immune cells, including macrophages, also express MHC II. The presence of both molecules enables macrophages to play a crucial role in immune response by presenting antigens to T cells.

PREREQUISITES
  • Understanding of MHC (Major Histocompatibility Complex) molecules
  • Knowledge of immune cell types, specifically Antigen Presenting Cells (APCs)
  • Familiarity with the role of macrophages in the immune system
  • Basic concepts of cellular biology regarding nucleated cells
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  • Research the functions of MHC I and MHC II in immune response
  • Explore the role of Antigen Presenting Cells in T cell activation
  • Study the differentiation and functions of macrophages in immunology
  • Learn about the implications of MHC expression in transplantation and autoimmune diseases
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Immunologists, biology students, healthcare professionals, and anyone interested in understanding the immune system's cellular mechanisms.

jayadds
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Hi all,

I was just wondering, are there MHC I molecules on the surface of a macrophage? According to my textbook, this is the rule:

All nucleated cells have MHC I
Dendritic cells, macrophages and B cells have MHC II

Can macrophage be considered as a nucleated cell? If so, does that mean a macrophage has both MHC I and II molecules on its surface?

Many thanks,
Jay
 
Biology news on Phys.org
Yes, macrophages (and other Antigen Presenting Cells) have MHC I in addition to MHC II.
 

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