Assertion: antigen | /r/DefinedAs | substance
Facets:
value: formally
type: MANNER
Source sentences:
text: Formally they are defined as a substance that causes the production of antibodies specific to that antigen, however they also cause T cell mediated immune responses, and may lead to an inflammatory response.
text: In the strict sense, immunogens are those substances that elicit a response from the immune system, whereas antigens are defined as substances that bind to specific antibodies.