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Es una proteína producida por el sistema inmunitario del cuerpo cuando detecta sustancias dañinas, llamadas antígenos. Los ejemplos de antígenos abarcan microorganismos (tales como bacterias, hongos, parásitos y virus) y químicos.

Los anticuerpos se pueden producir cuando el sistema inmunitario erróneamente considera el tejido sano como una sustancia dañina. Esto se denomina un trastorno autoinmunitario.

Cada tipo de anticuerpo es único y defiende al organismo de un tipo específico de antígeno.

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  • Last reviewed on 11/2/2012
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon.

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This page was last updated: May 20, 2014

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