Amphiregulin
Amphiregulin is a protein that in humans is encoded by the AREG gene. It is a member of the EGF family of proteins. Amphiregulin is produced as a glycoprotein with a molecular weight of approximately 43 kDa. It is expressed in numerous tissues, including the liver, heart, lung, kidney, and testis.
Amphiregulin has been implicated in a variety of biological processes. It is known to play a role in the growth of certain types of cancer, including breast cancer and colorectal cancer. It is also involved in the regulation of cell proliferation and differentiation, and it has been shown to promote wound healing.
Function[edit | edit source]
Amphiregulin is a potent mitogen for a variety of cell types, including epithelial cells and fibroblasts. It binds to the EGFR (epidermal growth factor receptor), leading to the activation of the receptor's intrinsic tyrosine kinase activity. This in turn triggers a series of intracellular signaling events that ultimately result in cell proliferation and differentiation.
Clinical significance[edit | edit source]
Amphiregulin has been implicated in the growth and progression of several types of cancer. In breast cancer, for example, it has been shown to promote tumor growth and metastasis. Similarly, in colorectal cancer, high levels of amphiregulin expression have been associated with poor prognosis.
In addition to its role in cancer, amphiregulin has also been implicated in other diseases. For example, it has been shown to play a role in the pathogenesis of rheumatoid arthritis, and it may also be involved in the development of atherosclerosis.
See also[edit | edit source]
References[edit | edit source]
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