Antigen Presentation (also known as Antigen Presentations, Antigen Processing): The process by which antigen is presented to lymphocytes in a form they can recognize. This is performed by antigen presenting cells (APCs). Some antigens require processing before they can be recognized. Antigen processing consists of inge

NIH MeSH · D017951Phenomena and Processes

Antigen Presentation

Also known asAntigen Presentations · Antigen Processing · Antigen Processings

Definition

The process by which antigen is presented to lymphocytes in a form they can recognize. This is performed by antigen presenting cells (APCs). Some antigens require processing before they can be recognized. Antigen processing consists of ingestion and partial digestion of the antigen by the APC, followed by presentation of fragments on the cell surface. (From Rosen et al., Dictionary of Immunology, 1989)

MeSH classification

  • G12.119
  • G12.450.050.400.070

Need clinical context, treatments, or patient-language explanation?

Ask GoDavaii AI about Antigen Presentation

Related concepts

Adaptive Immunity

Protection from an infectious disease agent that is mediated by B- and T- LYMPHOCYTES following exposure to specific antigen, and characteri…

Agglutination

The clumping together of suspended material resulting from the action of AGGLUTININS.

Antibody Affinity

A measure of the binding strength between antibody and a simple hapten or antigen determinant. It depends on the closeness of stereochemical…

Antibody-Dependent Cell Cytotoxicity

The phenomenon of antibody-mediated target cell destruction by non-sensitized effector cells. The identity of the target cell varies, but it…

Antibody-Dependent Enhancement

Enhancement of viral infectivity caused by non-neutralizing antibodies. There are at least two mechanisms known to account for this: mediati…

Antibody Diversity

The phenomenon of immense variability characteristic of ANTIBODIES. It enables the IMMUNE SYSTEM to react specifically against the essential…

Antibody Formation

The production of ANTIBODIES by proliferating and differentiated B-LYMPHOCYTES under stimulation by ANTIGENS.

Antibody Specificity

The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on che…

Common questions about Antigen Presentation

What does Antigen Presentation mean in medicine?
The process by which antigen is presented to lymphocytes in a form they can recognize. This is performed by antigen presenting cells (APCs). Some antigens require processing before they can be recognized. Antigen processing consists of ingestion and partial digestion of the antigen by the APC, followed by presentation of fragments on the cell surface. (From Rosen et al., Dictionary of Immunology, 1989) This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Antigen Presentation known by any other names?
Yes. Antigen Presentation is also referred to as Antigen Presentations, Antigen Processing, Antigen Processings in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Antigen Presentation sit in the medical classification?
Antigen Presentation falls under the broader medical category "Phenomena and Processes" in the MeSH hierarchy (tree numbers: G12.119, G12.450.050.400.070). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Antigen Presentation?
For a plain-language explanation of Antigen Presentation - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Antigen Presentation" above.

Source: NIH MeSH 2026 (D017951) — National Library of Medicine, public domain. View official MeSH record ↗