METHODS FOR THE DETECTION AND QUANTITATION OF PTEN

摘要

The present disclosure provides methods for determining if PTEN is elevated or reduced in one or more tumor cells relative to one or more normal cells in the same biological sample by obtaining a biological sample comprising one or more tumor cells and one or more normal cells; assaying the biological sample for expression of PTEN; quantitating an amount of PTEN expression in the one or more tumor cells and an amount of PTEN expression in the one or more normal cells; comparing the amount of PTEN expression in the tumor cells to the amount of PTEN expression in the normal cells; and determining that PTEN is elevated in the tumor cells where the amount of expression of PTEN is greater in the tumor cells as compared to the normal cells or determining that PTEN is reduced in the tumor cells where the amount of expression of PTEN is less in the tumor cells than in the normal cells. Such methods may be used to predict whether a patient will be responsive to treatment with one or more receptor tyrosine kinase inhibitors and/or may be used to select subjects for inclusion/exclusion in a clinical trial.