CEFR C2

autoantibody

noun

Meaning

An antibody produced by the immune system that reacts against the body's own healthy cells or tissues rather than foreign pathogens.

Doctors tested her blood for a specific autoantibody to confirm the diagnosis of lupus.
The presence of an autoantibody in the joint fluid is a common marker for rheumatoid arthritis.

Synonyms: self-antibody, auto-antibody

noun

Pronunciation: /ˌɔːtəʊˈæntibɒdi/

An antibody produced by the immune system that reacts against the body's own healthy cells or tissues rather than foreign pathogens.

Doctors tested her blood for a specific autoantibody to confirm the diagnosis of lupus.
The presence of an autoantibody in the joint fluid is a common marker for rheumatoid arthritis.
Researchers are studying how an autoantibody might contribute to the development of type 1 diabetes.

detect an autoantibody (collocation): to find evidence of these proteins in a blood test — "The lab was unable to detect an autoantibody in the patient's initial blood sample."
presence of an autoantibody (collocation): the state of having these proteins in the body — "The presence of an autoantibody is a key diagnostic criterion for several autoimmune conditions."

Words with a similar meaning to autoantibody: