Immunohistochemistry (ihc) ptk7 scoring protocols and methods for aiding cancer treatments

Abstract

In alternative embodiments, provided are immunohistochemistry (IHC) methods and kits for determining and scoring reproducibly the extent of expression of the protein tyrosine-protein kinase-like 7 (PTK7), also known as: colon carcinoma kinase 4 (CCK4); HER2 or receptor tyrosine-protein kinase erbB-2, or cluster of differentiation 340 (CD340); programmed death-ligand 1 (PD-L1), or cluster of differentiation 274 (CD274); B7 homolog 1 (B7-H1); and, Ki-67 or MKI67 (Marker of Proliferation Ki-67), in a tissue sample. In alternative embodiments, provided are methods and kits for diagnosing or selecting an individual eligible for treatment with a cancer or tumor therapeutic, or assessing the risk of recurrence for a cancer or a tumor using an IHC method as provided herein. In alternative embodiments, provided are kits comprising components and instructions for practicing methods as provided herein. The present application describes methods for scoring PTK7 expression and utilizing the score as a companion or complementary diagnostic, or to aid the treatment or amelioration of a cancer or a tumor.

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