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If you have pTEN present or if you are pTEN positive that is a good thing as Herceptin activates pTEN so it can stop proliferation of the her2 postive cancer cell. As far as I know there is currently no serum pTEN test available; it is done on tissue block probably via Western blot assays.
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Robin
2002- dx her2 positive DCIS/bc TX Mast, herceptin chemo
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