Abstract: The invention provides method for predicting whether a cancer patient will respond to a therapy. Methods of the invention may involve examining protein from a cell of the cancer patient by determining the binding of a panel of antibodies to the protein. Methods of the invention may be used to generate both expression and activation profiles for cells from a cancer patient. Profiles from a cancer patient may then be compared to known profiles for therapy responders and non-responders to predict the individual response of the patient. For example, methods of the invention may be used to determine whether an ovarian or breast cancer patient will respond to a therapeutic protocol.