Immortal Cell Line
An established cell line that has acquired the ability to proliferate indefinitely through either random mutation or deliberate modification.
Immunotherapy
Modulation of the immune system to achieve a therapeutic goal. Monoclonal antibodies are a type of immunotherapy.
In vitro
The technique of performing an experiment outside of a living organism, in a controlled environment such as in a cell culture or in cells grown in a petri dish.
Interferon
A naturally occurring cell-signaling protein produced by the immune system in response to infections such as viral infections or parasites.
Intracellular Proteins
Proteins found inside a cell.
Investigational New Drug
A drug that has been approved by the FDA for use in human clinical trials.
Ion Channels
Pore-forming proteins that help establish and control the small voltage gradient across the plasma membrane of all living cells. Ion channels are involved in a wide variety of biological processes and are a favorite target in the search for new drugs.