Signaling pathway
Signaling Pathway
A Signaling Pathway (pronunciation: /ˈsɪɡ.nəl.ɪŋ ˈpæθ.weɪ/) is a group of molecules in a cell that work together to control one or more cell functions, such as cell division or cell death. After the first molecule in a pathway receives a signal, it activates another molecule. This process is repeated until the last molecule is activated and the cell function is carried out. Abnormal activation of signaling pathways can lead to cancer, and drugs are being developed to block these pathways. These drugs may help block the growth and spread of cancer.
Etymology
The term "Signaling Pathway" is derived from the English words "signal" and "pathway". "Signal" comes from the Latin word "signalis" meaning a sign, and "pathway" comes from the Old English words "paþ" (path) and "weg" (way).
Related Terms
- Cell Division: The process by which a parent cell divides into two or more daughter cells.
- Cell Death: The event of a biological cell ceasing to carry out its functions.
- Molecule: The smallest particle in a chemical element or compound that has the chemical properties of that element or compound.
- Cancer: A group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.
- Drug: Any substance that causes a change in an organism's physiology or psychology when consumed.
See Also
External links
- Medical encyclopedia article on Signaling pathway
- Wikipedia's article - Signaling pathway
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