Calling in SYK: SYK's dual role as a tumor promoter and tumor suppressor in cancer.

Biochim Biophys Acta

Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, United States. Electronic address:

Published: January 2015

SYK (spleen tyrosine kinase) is well-characterized in the immune system as an essential enzyme required for signaling through multiple classes of immune recognition receptors. As a modulator of tumorigenesis, SYK has a bit of a schizophrenic reputation, acting in some cells as a tumor promoter and in others as a tumor suppressor. In many hematopoietic malignancies, SYK provides an important survival function and its inhibition or silencing frequently leads to apoptosis. In cancers of non-immune cells, SYK provides a pro-survival signal, but can also suppress tumorigenesis by restricting epithelial-mesenchymal transition, enhancing cell-cell interactions and inhibiting migration.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254495PMC
http://dx.doi.org/10.1016/j.bbamcr.2014.10.022DOI Listing

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