Autoantigen
Definition
A normal molecular constituent, macromolecule, protein, or cellular structure native to an organism that, under conditions of impaired immune tolerance, is erroneously recognized as a foreign substance (antigen) and becomes the target of an attack triggered by its own immune system.
Bilingual Equivalents
- Autoantigen
- Self-antigen
Grammatical & Source Details
| Inflection Type | Neuter noun, adapting with standard structural variations in modern Romanian nominal suffix options. |
| Formation | Biological compound noun combining the self-prefix with the immune targeting noun antigen. |
| Spelling / Pronunciation | [a.u.to.an.ti.ˈd͡ʒen] |
| Source | The Compendium of Molecular Immunology and Structural Genetic Tolerance |
Contextual Usage Examples
RO: În diabetul de tip 1, insulina modificată structural poate acționa ca un autoantigen ce declanșează distrugerea celulelor beta.
EN: In type 1 diabetes, structurally modified insulin can act as a self-antigen triggering the destruction of beta cells.
RO: Cercetătorii încearcă să identifice fiecare autoantigen implicat în scleroza multiplă pentru a dezvolta vaccinuri tolerogene.
EN: Researchers are trying to identify every autoantigen involved in multiple sclerosis to develop tolerogenic vaccines.
RO: Ruptura toleranței centrale face ca limfocitele T autoreactive să atace un autoantigen din țesutul tiroidian.
EN: The breakdown of central tolerance causes autoreactive T cells to attack a self-antigen within thyroid tissue.
Idioms & Phrases
Prezentare de autoantigen / Autoantigen presentation
RO: Proces celular prin care moleculele MHC expun peptide proprii pe suprafața celulei, expunându-le greșit celulelor T.
EN: A cellular process whereby MHC molecules display native peptides on the cell surface, erroneously exposing them to T cells.
Recunoașterea unui autoantigen / Autoantigen recognition
RO: Eroare biochimică prin care receptorii celulelor imunitare blochează legătura cu o proteină proprie, considerând-o periculoasă.
EN: A biochemical error where immune cell receptors lock onto a native protein, treating it as dangerous.
Autoantigen specific de organ / Organ-specific autoantigen
RO: Moleculă izolată localizată exclusiv într-un anumit organ (cum ar fi colagenul în articulații), determinând o boală localizată.
EN: An isolated molecule located exclusively within a specific organ (such as collagen in joints), driving a localized disease.
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