Antigen

Word ANTIGEN
Character 7
Hyphenation N/A
Pronunciations N/A

Definitions and meanings of "Antigen"

What do we mean by antigen?

A substance that when introduced into the body stimulates the production of an antibody. Antigens include toxins, bacteria, foreign blood cells, and the cells of transplanted organs. noun

A substance that induces an immune response, usually foreign. noun

Any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies) noun

A substance that induces an immune response, usually foreign.

With respect to SARS-CoV-2, the emergence of genetic viral mutation target(s) unrecognized by vaccine generated antibodies. Urban Dictionary

Synonyms and Antonyms for Antigen

The word "antigen" in example sentences

In non-permissive transformed cells the antigen is a protein of molecular weight of about 94,000 daltons ❋ Unknown (1992)

The most important antigen is the machismo that continues to permeate these work environments. ❋ Peggy (2008)

It was known that antigen is endocytosed with antigen receptors and then degraded. ❋ Unknown (2005)

The H antigen is an intermediate stage in the production of the A and B antigens. ❋ Unknown (2004)

Boon's group, and others, have determined that sometimes more than one antigen is associated with a gene: peptides in the MAGE-3 gene associate with at least two different MHC molecules, A-1 and A-2. ❋ Unknown (1997)

Searching for this antigen is like looking for a five-word sentence in a 300,000-word novel, buried in a three-billion-letter text of uniformly fine print. ❋ Unknown (1997)

That the T antigen is specified by the viral DNA is strongly suggested by its in vitro synthesis using a wheat germ extract primed with various messengers (30), especially since the size of the product depends on the nature of the messenger. ❋ Unknown (1992)

The discrepancy of the two molecular weights makes it very unlikely that the T antigen is a cellular protein modified by a viral function, because two different proteins would have to be modified in the same extract depending on the messenger used. ❋ Unknown (1992)

SV40 genome can specify proteins of a molecular weight of about 100,000 daltons altogether, the T antigen is likely to be its sole product and, therefore, to be the transforming protein. ❋ Unknown (1992)

This "drug-induced tolerance" remained after drug treatment was stopped, even though the animals could react normally against another protein antigen, bovine gamma globulin. ❋ Unknown (1990)

When an antigen is introduced the equilibrium is disturbed. ❋ Unknown (1984)

He has shown in elegant studies that the guinea pig's ability to mobilize an immune response against a certain antigen is determined by genetic factors. ❋ Unknown (1980)

When the antigen is a pathogen (infectious agent, or germ), as with tuberculosis or pneumonia or smallpox, the creation of a vaccine is relatively (not quite) straightforward. ❋ Stanton Peele (2011)

But think of how much more difficult this process is when the so-called antigen "so-called" because people generally don't welcome or seek out pathogens, but they do cigarettes and cocaine acts by stimulating neurochemicals -- a much more diffuse process. ❋ Stanton Peele (2011)

The process starts when special markers—known as antigen receptors, which sit on the surface of T cells—detect pieces of foreign antigens entering the body. ❋ Donna Jackson Nakazawa (2008)

If T cells decide that the antigen is a foreign agent that the body needs to fight against, they then send out signals that cause T cells to proliferate—and to also produce B cells. ❋ Donna Jackson Nakazawa (2008)

Adjuvants—substances that may be added to influenza vaccines to reduce the amount of active ingredient called antigen needed per dose of vaccine—are showing promise in clinical trials in the United States; some of them have been approved for limited uses in Europe. ❋ Unknown (2009)

I'M SO HAPPY! I JUST GOT THE COVID VACCINE!! I'M IMMUNE!! I DON'T HAVE TO WEAR A MASK OR [SOCIAL DISTANCE] ANYMORE! Ummm, [not so fast]. It seems that the virus has mutated. [The vaccine] is no longer effective. It's called antigenic escape...we're all doomed. ❋ YAWA (2021)

Cross Reference for Antigen

  • Antigen cross reference not found!

What does antigen mean?

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