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Breast Cancer Identified With a Dispoable Device
Aggressive breast cancers with poor prognosis typically have abnormal levels of the protein HER2 (the tyrosine kinase human epidermal growth factor receptor 2). The new elastomeric, rubber-like device is designed to efficiently capture cancer cells overexpressing HER2 in circulating blood.
Finding a way to identify these cells is medically relevant because HER2 positive patients with early breast cancer have been found to significantly benefit from treatment with Herceptin or trastuzumab, the humanized monoclonal antibody against HER2, which can lower recurrence risk by about half.
In the study Benjamin Thierry and colleagues at the Ian Wark Research Institute at the University developed a plastic-based disposable microfluidic device offering several improvements for capturing circulating tumor cells.
The device is designed to take advantage of the features of an organic silicone found in contact lenses and shampoos called polydimethylsiloxane (PDMS), which is compatible with soft molding techniques, transparent, and permeable to gasses.
The device is significantly easier and cheaper to make than the prior microfabricated one. The major challenge associated with PDMS use in biodiagnostic applications is its lack of chemical reactivity.
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More News on: Women and Cancer, Breast Biopsy, Pagets disease of the breast, Mastitis, Cancer and Homeopathy, Breast Cancer Facts, Cancer Facts, Cancer, Tattoos A Body Art, Breasts - Structures and Types
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