Abstract: The invention relates to a method of preventing or treating proliferative diseases such as cancer in a mammal, particularly a human, with a combination of pharmaceutical agents which comprises: (a) an HDAI; and (b) a death receptor ligand. The invention further relates to pharmaceutical compositions comprising: (a) an HDAI; (b) death receptor ligand; and (c) a pharmaceutically acceptable carrier. The present invention further relates to a commercial package or product comprising: (a) a pharmaceutical formulation of an HDAI; and (b) a pharmaceutical formulation of death receptor ligand for simultaneous, concurrent, separate or sequential use.

Abstract: The present invention relates to a method of treating myelodysplastic syndromes, lymphomas and leukemias, and also solid tumors with a pharmaceutical combination of a FLT-3 kinase inhibitor and a histone deacetylase inhibitor (HDAI). It also relates to the use of a pharmaceutical combination of a histone deacetylase inhibitor and a FLT-3 kinase inhibitor for the treatment of the diseases or malignancies mentioned above and the use of such a pharmaceutical composition for the manufacture of a medicament for the treatment of these diseases or malignancies.

Abstract: Epothilone resistant cells lines are disclosed. The invention also discloses methods for identifying substances which are cytotoxic to epothilone resistant cells or which are chemosensitizers or analogs of epothilone. The invention further discloses methods for identifying epothilone resistant cells and for inhibiting the growth of epothilone resistant cells in vitro and in vivo. The invention also discloses antibodies specific for epothilone resistant cells. Also disclosed is a method to identify microtubule stabilizing agents using the epothilone resistant cell lines disclosed.

Abstract: The invention relates to a combination which comprises (a) one or more chemotherapeutic agents and (b) a histone deacetylase inhibitor (“HDAI”) for simultaneous, concurrent, separate or sequential use, especially for use in the treatment of proliferative diseases including pre-malignant lesions (e.g. colon polyps) and malignancies, both solid and undifferentiated or other proliferative diseases in a mammal, particularly a human. The invention also relates to pharmaceutical compositions comprising such a combination and to a method of preventing or treating proliferative diseases including pre-malignant lesions (e.g. colon polyps) and malignancies, both solid and undifferentiated or other proliferative diseases, in a mammal, particularly a human, with such a combination. The present invention further also relates to a commercial package or product comprising such a combination.

Abstract: The invention relates to a novel method for evaluating the antiproliferative activity of protein deacetylase inhibiting compounds and microtubule interacting agents, as well as a method for screening for compounds that inhibit cell growth or growth of tumors. The invention additionally provides a method for monitoring the progress of treatment against cellular growth or the growth of tumors.

Abstract: The invention relates to the use of Fra-1 levels as a marker for HDAC inhibition. Also disclosed are in vivo and in vitro methods for screening a compound for HDAC inhibitory activity, as well as methods for monitoring the therapeutic efficacy of an HDAC inhibitor in a subject in vivo and for determining resistance to an HDAC inhibitor in vitro or in vivo.