Idiotype network

The **idiotype network** is not a single molecular entity or classical therapeutic target, but rather a theoretical framework in immunology describing regulatory interactions among antibodies and lymphocyte receptors based on the unique antigen-recognizing portions—**idiotypes**—of their variable regions[1][2][4][8][9]. The central concept, proposed by Niels Jerne in the 1970s, postulates that the immune system contains a self-regulating network of interactions among idiotypes (the antigen-binding regions of antibodies and T-cell receptors) and anti-idiotype antibodies, which can function as antigenic determinants themselves[2][4][8][9]. This network helps shape the diversity, tolerance, and homeostasis of the immune system, potentially contributing to control of autoimmunity and maintenance of immunological balance[4][11]. The idiotype network model has inspired research into anti-idiotype antibodies for use in vaccines or in treating autoimmune and B-cell mediated diseases, but it does not denote a specific drug target, receptor, enzyme, or protein[4][9][8]. Therefore, while it captures an important aspect of immune regulation, "idiotype network" is not a canonical therapeutic target itself, but rather a **conceptual model** describing **regulatory network interactions** among molecules of immunological specificity.

Other names

Idiotypic networkIdiotype regulatory networkJerne immune network