Tattoo delivers DNA vaccines safely, painlessly

By Janet Fang | February 6, 2013, 11:16 PM PST

Vaccines typically involve injecting inactivated viruses into your body; the immune system remembers these invaders so it can mount a defense if it encounters the real thing later on. This approach, however, can be too risky with certain viruses, such as HIV.

Now, scientists have come up a better alternative: a vaccine-delivering polymer film that gradually releases a DNA vaccine. MIT News Office reports.

Specifically, it’s DNA coding for viral proteins: this DNA snippet encodes for a specific antigen (something that causes an immune response). Once it’s in an immune cell, it gets the cell to produce more of the antigen.

Read more: Tattoo delivers DNA vaccines safely, painlessly | SmartPlanet.

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