MRNA vaccine
mRNA Vaccine
mRNA Vaccine (pronunciation: /ɛm ɑːr en eɪ vaksin/) is a type of vaccine that uses a copy of a molecule called messenger RNA (mRNA) to produce an immune response. The vaccine is designed to instruct cells in the body to produce a protein that triggers this response.
Etymology
The term "mRNA" is an abbreviation for "messenger Ribonucleic Acid," while "vaccine" originates from the Latin word "vaccinus," meaning "from cows," due to the early use of cowpox to immunize against smallpox.
Mechanism of Action
The mRNA in the vaccine is a type of genetic material that provides instructions for cells. Once inside the cells, the mRNA instructs them to produce a protein that is unique to the virus that causes the disease. This protein triggers an immune response, including the production of antibodies. If the individual is later exposed to the virus, the immune system will recognize the virus and be prepared to fight it off.
Related Terms
- Vaccine: A biological preparation that provides active acquired immunity to a particular infectious disease.
- mRNA: A subtype of RNA. An mRNA molecule carries a portion of the DNA code to other parts of the cell for processing.
- Immune response: The reaction of the cells and fluids of the body to the presence of a substance which is not recognized as a constituent of the body itself.
- Antibodies: Proteins produced by the body's immune system when it detects harmful substances.
See Also
External links
- Medical encyclopedia article on MRNA vaccine
- Wikipedia's article - MRNA vaccine
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