Abstract: The present invention concerns diagnosing and/or prognosticating cancer in an individual and/or determining response to a Hsp90-interacting therapy in an individual. In particular, the methods and compositions of the therapy relate to levels of Hsp90-? in plasma. Additional methods concern determining levels of Hsp90-associated molecules.

Abstract: The present invention concerns diagnosing and/or prognosticating cancer in an individual and/or determining response to a Hsp90-interacting therapy in an individual. In particular, the methods and compositions of the therapy relate to levels of Hsp90-? in plasma. Additional methods concern determining levels of Hsp90-associated molecules.

Abstract: Methods and compositions for treating cancer are discussed herein. Specifically, methods for determining the sensitivity of a patient to treatment with therapeutic agents, compositions for treating patients, and the treatment methods thereof are provided.

Abstract: It is demonstrated in the present invention that G-quadruplex ligands can be used to both shorten telomeres and inhibit telomerase by causing telomere uncapping. The invention relates to compositions and methods of treating cancer stem cells comprising the administration of G-quadruplex ligands, such as 3,11-difluoro-6,8,13-trimethyl-8H-quino[4,3,2-kl]acridinium methosulfate (RHPS4), which can effectively inhibit or reduce the growth of cancer stem cells. The invention also relates to a synergistic effect in inhibiting or reducing the growth cancer stem cells when a G-quadruplex ligand is combined with a mitotic spindle poison, such as paclitaxel, or other agents used in the treatment of cancer and disease. The invention also relates to RHPS4 inducing non-cancerous cell and non-cancerous stem cell proliferation.