Abstract
In this chapter, we will discuss the principles of antigen presentation. We will learn that the major purpose of antigen-presenting cells, such as dendritic cells, macrophages and B cells, is to display peptide antigens to T cells. These peptides are derived from extracellular microbes and are presented via MHC-II proteins to CD4+ T cells (TH cells), which are found with highest concentration at secondary lymphoid organs, such as lymph nodes. In contrast, antigen peptides that origin from intracellular microbes or damaged cellular proteins are displayed by all kind of body cells on MHC-I proteins to CD8+ T cells (cytotoxic T cells). Thus, we will understand that MHC proteins are central in segregating antigens that are produced inside of regular cells, such as viral proteins, from those that internalized from outside, such as proteins from extracellular bacteria.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Further Reading
Trowsdale J, Knight JC (2013) Major histocompatibility complex genomics and human disease. Annu Rev Genomics Hum Genet 14:301–323
Petersdorf EW, O’HUigin C (2019) The MHC in the era of next-generation sequencing: Implications for bridging structure with function. Hum Immunol 80:67–78
Wieczorek M, Abualrous ET, Sticht J, Alvaro-Benito M, Stolzenberg S, Noe F, Freund C (2017) Major histocompatibility complex (MHC) class I and MHC class II proteins: conformational plasticity in antigen presentation. Front Immunol 8:292
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this chapter
Cite this chapter
Carlberg, C., Velleuer, E. (2022). Antigen-Presenting Cells and the Major Histocompatibility Complex. In: Molecular Immunology. Springer, Cham. https://doi.org/10.1007/978-3-031-04025-2_5
Download citation
DOI: https://doi.org/10.1007/978-3-031-04025-2_5
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-04024-5
Online ISBN: 978-3-031-04025-2
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)