Targeting SR-BI for Cancer Diagnostics, Imaging and Therapy.

Front Pharmacol

Princess Margaret Cancer Centre and Techna Institute, University Health NetworkToronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of TorontoToronto, ON, Canada; Department of Medical Biophysics, University of TorontoToronto, ON, Canada.

Published: September 2016

Scavenger receptor class B type I (SR-BI) plays an important role in trafficking cholesteryl esters between the core of high density lipoprotein and the liver. Interestingly, this integral membrane protein receptor is also implicated in the metabolism of cholesterol by cancer cells, whereby overexpression of SR-BI has been observed in a number of tumors and cancer cell lines, including breast and prostate cancers. Consequently, SR-BI has recently gained attention as a cancer biomarker and exciting target for the direct cytosolic delivery of therapeutic agents. This brief review highlights these key developments in SR-BI-targeted cancer therapies and imaging probes. Special attention is given to the exploration of high density lipoprotein nanomimetic platforms that take advantage of upregulated SR-BI expression to facilitate targeted drug-delivery and cancer diagnostics, and promising future directions in the development of these agents.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5037127PMC
http://dx.doi.org/10.3389/fphar.2016.00326DOI Listing

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