INTERFERONS - INTERFERONS

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INTERFERONS   Control of viruses in the body is especially difficult since viruses depend mainly on normal body  processes for their reproduction. Anything that damages the virus also tends to damage normal  host cells in the same way. One way the body tries to defend itself is by the production of  interferons (IFNs). IFNs are a class of antiviral proteins. Although many species produce them,  IFNs are specific to the species (human interferons work only in humans, for example). However,  IFNs are not virus-specific—the same interferons may work against many different viruses.    Human IFNs are of three main types: Alpha interferon ( α -IFN) Beta interferon ( β -IFN) Gamma interferon ( γ -IFN) In humans, interferons are mainly produced by fibroblasts, lymphocytes, and other white blood  cells.  α -IFNs and  β -IFNs are produced in very small quantities by host cells that have been 
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INTERFERONS - INTERFERONS

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