au·​to·​an·​ti·​body | \ ˌȯ-(ˌ)tō-ˈan-ti-ˌbä-dē How to pronounce autoantibody (audio) \

Definition of autoantibody

: an antibody active against a tissue constituent of the individual producing it

Examples of autoantibody in a Sentence

Recent Examples on the Web In adapting the technique to treat autoimmune disease, the team gave T cells a beacon derived from bits of the anti-DSG3 autoantibody, which leads the killers straight to anti-DSG3 B cells. Marla Broadfoot, Scientific American, 1 Sep. 2021 These cells are the actual agents of destruction, so scientists investigating autoimmunity look for these T cell–autoantibody pairs. Stephani Sutherland, Scientific American, 1 Sep. 2021 An autoantibody is an antibody produced by the immune system that is directed against one or more of the individual’s own proteins and can cause autoimmune diseases. Julie Washington, cleveland, 8 June 2021 The autoantibody hypothesis still warrants further research. Stephani Sutherland, Scientific American, 21 Jan. 2021 The screening works: Studies show that each year, about 10% of children with two or more autoantibodies will develop diabetes, and after 15 years, about 85% have the disease. Jennifer Couzin-frankel, Science | AAAS, 23 Apr. 2020 The doctor may also test for certain autoantibodies to determine whether your diabetes is type 1, the autoimmune version of the disease, according to the NIDDK. Sarah Jacoby, SELF, 6 Nov. 2019 The first prescription treatment for lupus in over 50 years was approved in 2011 by the Food and Drug Administration for adults with active autoantibody-positive lupus who are receiving standard therapy. Sandee Lamotte, CNN, 18 Sep. 2017 In essence, the antibodies turned into autoantibodies: antibodies that attacked the self. Pamela Weintraub, Discover Magazine, 29 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'autoantibody.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of autoantibody

1905, in the meaning defined above

Learn More About autoantibody

Time Traveler for autoantibody

Time Traveler

The first known use of autoantibody was in 1905

See more words from the same year

Dictionary Entries Near autoantibody




See More Nearby Entries 

Statistics for autoantibody

Last Updated

8 Dec 2021

Cite this Entry

“Autoantibody.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for autoantibody


au·​to·​an·​ti·​body | \ ˌȯt-(ˌ)ō-ˈant-i-ˌbäd-ē How to pronounce autoantibody (audio) \
plural autoantibodies

Medical Definition of autoantibody

: an antibody active against a tissue constituent of the individual producing it

More from Merriam-Webster on autoantibody Encyclopedia article about autoantibody


Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!