Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
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 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2


This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online