Abstract: The invention encompasses methods and devices for diagnosing, theranosing, or prognosing a condition in a patient by enriching a sample in rare cells or other particles. The devices can be a microfluidic device comprising an array of obstacles and one or more binding moieties. The devices and methods can allow for enrichment of cells based on size and affinity, recovery of cells or other particles in locations on the microfluidic device, release of cells or other particles from the microfluidic device, flow of sample through the microfluidic device, and retention of rare cells or other particles from a sample obtained from a patient having a condition.

Abstract: Provided are compositions, methods, and kits relating to the detection of a circulating or soluble form of the EphA2 receptor tyrosine kinase.

Abstract: Provided are compositions, methods, and kits relating to the detection of a circulating or soluble form of the KET receptor tyrosine kinase.

Abstract: The present invention describes clinically and medically important methods of examining, screening over time, and monitoring the outcome of a cancer patient who is undergoing treatment or therapy for his or her disease. More specifically, the invention provides a method of monitoring the progression of disease, or the effectiveness of cancer treatment, in a cancer patient by measuring the levels of one or more analytes of the plasminogen activator (uPA) system, namely, uPA, PAI-1 and the complex of uPA:PAI-1, in a sample taken from the cancer patient, preferably, before treatment, at the start of treatment, and at various time intervals during treatment. As a result of performing the method, an increase or elevation in the levels of one or more of the PA system analytes in the cancer patient compared with the levels one or more of the respective PA system analytes in normal control individuals serves as an indicator of cancer advancement or progression and/or a lack of treatment effectiveness for the patient.

Abstract: The present invention is directed to the detection and quantification of total PDGFR-? in body fluids, particularly serial changes of total PDGFR-? levels in a subject's body fluids. Further, the invention is directed to detecting and quantitatiing total PDGFR-? in conjunction with one or more other proteins, such as, oncoproteins, angiogenic factors, tumor markers, inhibitors, growth factor receptors, metastasis proteins, and tumor suppressors. The disclosed methods are diagnostic/prognostic for diseases, and useful to select therapies for patients with diseases, preferably preneoplastic/neoplastic diseases. The disclosed methods are particularly useful to monitor the status of a patient's disease, and/or to monitor how a patient is responding to a therapy.