85 results about "Bcl-2 family" patented technology

Salts and crystalline forms of 4-(4-{[2-(4-chlorophenyl)-4,4-dimethylcyclohex-1-en-1-yl]methyl}piperazin-1-yl)-N-({3-nitro-4-[(tetrahydro-2H-pyran-4-ylmethyl)amino]phenyl}-sulfonyl)-2-(1H-pyrrolo[2,3-b]pyridin-5-yloxy)benzamide are suitable active pharmaceutical ingredients for pharmaceutical compositions useful in treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

The present invention is based, at least in part, on the identification of a novel active site on BCL-2 family polypeptide such as BAX, which when bound by a compound, modifies the activity of the BCL-2 family polypeptide.

Disclosed are 2-methoxy antimycin derivatives or analogs that modulate apoptosis by binding to the hydrophobic groove of a Bcl-2 family member protein (e.g., Bcl-2 or BCl-xL). The 2-methoxy antimycin derivatives or analogs are used in disclosed methods for treating apoptosis-associated diseases such as, for example, neoplastic disease (e.g., cancer) or other proliferative diseases associated with the over-expression of a Bcl-2 family member protein.

An orally deliverable pharmaceutical composition comprises as a sole or first active ingredient a compound of Formula I defined herein or a pharmaceutically acceptable salt thereof, for example ABT-263 free base or ABT-263 bis-HCl salt, dispersed, in a free base equivalent amount of at least about 2.5% by weight of the composition, in a pharmaceutically acceptable carrier; wherein said active ingredient is in solid-state form and / or the composition further comprises, dispersed in the carrier, a pharmaceutically acceptable heavier-chalcogen antioxidant in an amount effective to inhibit oxidation of the active ingredient at a thioether linkage thereof. The composition is suitable for oral administration to a subject in need thereof for treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

The present invention relates to naturally occurring and chemically synthesized small molecule antagonists of Bcl-2 family proteins. In particular, the present invention provides gossypol compounds (e.g., isomers, enantiomers, racemic compounds, metabolites, derivatives, pharmaceutically acceptable salts, in combination with acids or bases, and the like) and methods of using these compounds as antagonists of the anti-apoptotic effects of Bcl-2 family member proteins (e.g., Bcl-2, Bcl-XL, and the like). The present invention also provides compositions comprising gossypol compounds and optionally one or more additional therapeutic agents (e.g., anticancer / chemotherapeutic agents). The present invention also provides methods for treating diseases and pathologies (e.g., neoplastic diseases) comprising administering a composition comprising gossypol compounds and optionally one or more additional therapeutic agents (e.g., anticancer / chemotherapeutic agents) and / or techniques (e.g., radiation therapies, surgical interventions, and the like) to a subject or in vitro cells, tissues, and organs.

A series of stapled BCL-2 family peptide helices were identified as able to target the survival protein MCL-I with high affinity and a subset with unprecedented selectivity. Agents and methods for selective pharmacologic neutralization of MCL-I are provided for drug discovery and therapeutic uses, including use in overcoming the apoptotic resistance of cancer and other diseases associated with impaired cell death.

The invention relates to small molecules which function as inhibitors of anti-apoptotic Bcl-2 family member proteins (e.g., Bcl-2 and Bcl-xL). The invention also relates to the use of these compounds for inducing apoptotic cell death and sensitizing cells to the induction of apoptotic cell death.

The present invention provides for compounds that inhibit the activity of an anti-apoptotic Bcl-2 family member Myeloid cell leukemia-1 (Mcl-1) protein. The present invention also provides for pharmaceutical compositions as well as methods for using compounds for treatment of diseases and conditions (e.g., cancer) characterized by the over-expression or dysregulation of Mcl-1 protein.

The invention is an assay designed to identify agents that modulate apoptosis. The invention provides an assay system and methods for screening for inhibitors of the Bcl-2 family of proteins. In various aspects the invention provides an assay system containing a liposome reagent and an immobilized BH3 domain peptide. In further aspects the invention provides an assay system containing mitochondria, an immobilized BH3 domain peptide and a mitochondrial binding agent, e.g. an anti-VDAC anti-body.

A pro-apoptotic solid dispersion comprises, in essentially non-crystalline form, a Bcl-2 family protein inhibitory compound, e.g., ABT-263, dispersed in a solid matrix that comprises (a) a pharmaceutically acceptable water-soluble polymeric carrier and (b) a pharmaceutically acceptable surfactant. A process for preparing such a solid dispersion comprises dissolving the compound, the polymeric carrier and the surfactant in a suitable solvent, and removing the solvent to provide a solid matrix comprising the polymeric carrier and the surfactant and having the compound dispersed in essentially non-crystalline form therein. The solid dispersion is suitable for oral administration to a subject in need thereof for treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

The present invention provides agents and compositions for modulating the apoptotic state of a cell. The agents comprise derivatives of antimycins which bind to an anti-apoptotic Bcl-2 family member protein. Further, the agents preferentially induce apoptosis in cells that over-express anti-apoptotic Bcl-2 family member proteins and typically exhibit reduced binding affinity for cytochrome B. Pharmaceutical uses of the agents and compositions include treating apoptosis-associated disease, such as neoplasia and drug resistance, are also disclosed.

The present invention provides agents and compositions for modulating the apoptotic state of a cell. The agents comprise derivatives of antimycins which bind to an anti-apoptotic Bcl-2 family member protein. Further, the agents preferentially induce apoptosis in cells that over-express anti-apoptotic Bcl-2 family member proteins and typically exhibit reduced binding affinity for cytochrome B. Pharmaceutical uses of the agents and compositions include treating apoptosis-associated disease, such as neoplasia and drug resistance, are also disclosed.

The present invention relates to naturally occurring and chemically synthesized small molecule antagonists of Bcl-2 family proteins. In particular, the present invention provides gossypol compounds (e.g., isomers, enantiomers, racemic compounds, metabolites, derivatives, pharmaceutically acceptable salts, in combination with acids or bases, and the like) and methods of using these compounds as antagonists of the anti-apoptotic effects of Bcl-2 family member proteins (e.g., Bcl-2, Bcl-XL, and the like). The present invention also provides compositions comprising gossypol compounds and optionally one or more additional therapeutic agents (e.g., anticancer / chemotherapeutic agents). The present invention also provides methods for treating diseases and pathologies (e.g., neoplastic diseases) comprising administering a composition comprising gossypol compounds and optionally one or more additional therapeutic agents (e.g., anticancer / chemotherapeutic agents) and / or techniques (e.g., radiation therapies, surgical interventions, and the like) to a subject or in vitro cells, tissues, and organs.

The present invention provides compositions comprising a chimeric molecule comprising a cytotoxin that inhibits protein synthesis and an agent that inactivates an anti-apoptotic BCL-2 family member protein and methods of inhibiting the growth of or promoting the apoptosis of an aberrantly proliferating cell population by co-administering the chimeric molecule and the agent that inactivates an anti-apoptotic BCL-2 family member protein.

ABT-263 bis-HCl and crystalline polymorphs thereof are suitable active pharmaceutical ingredients for pharmaceutical compositions useful in treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

This invention relates to pulsatile dose administration of gossypol or pharmaceutical compositions thereof for treating diseases, disorders and conditions responsive to gossypol, inhibiting the activity of anti-apoptotic Bcl-2 family proteins, inducing apoptosis in cells and increasing the sensitivity of cells to inducers of apoptosis.

ABT-263 free base and crystalline forms thereof are suitable active pharmaceutical ingredients for pharmaceutical compositions useful in treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

The present invention relates to small molecule antagonists of Bcl-2 family proteins such as Bcl-2 and / or Bcl-XL. In particular, the present invention provides non-peptide cell permeable small molecules (e.g., tricyclo-dibenzo-diazocine-dioxides) that bind to a pocket in Bcl-2 / Bcl-XL that block the anti-apoptotic function of these proteins in cancer cells and tumor tissues exhibiting Bcl-2 protein overexpression. In preferred embodiments, the small molecules of the present invention are active at the BH3 binding pocket of Bcl-2 family proteins (e.g., Bcl-2, Bcl-XL, and Mcl-1). The compositions and methods of the present invention are useful therapeutics for cancerous diseases either alone or in combination with chemotherapeutic or other drugs.

The invention is an assay designed to identify agents that modulate apoptosis. The invention provides an assay system and methods for screening for inhibitors of the Bcl-2 family of proteins. In various aspects the invention provides an assay system containing a liposome reagent and an immobilized BH3 domain peptide. In further aspects the invention provides an assay system containing mitochondria, an immobilized BH3 domain peptide and a mitochondrial binding agent, e.g. an anti-VDAC anti-body.

The invention provides a 4-substituted naphthalimide compound and a use thereof. The compound has a structure shown in the general formula I. The compound can competitively bind and antagonize with Bcl-2 and Mcl-1 proteins in vitro and in cells so that apoptosis is induced and thus the compound is a high activity apoptosis inducing agent and an antitumor compound. The derivative based on the compound can be used as a bifunctional molecule for external and intracellular recognition, separation, enrichment and fluorescence detection of Bcl-2 family proteins or can be used as a PROTAC bifunctional complex for intracellular selective degradation of Bcl-2 and Mcl-1 proteins so that the level of the Bcl-2 family proteins in living cells can be adjusted and controlled.

The present invention relates to compositions and methods for cancer treatment comprising compounds of Formulae I, II, and III. In some aspects, the invention relates to the treatment of B-cell Lymphoma or other hematopoietic cancers. In other aspects, the invention provides methods for treating particular types of hematopoietic cancers, such as, for example, B-cell lymphoma, using a combination of one or more compounds of Formulae I, II, and III. Combination therapy with, for example, 26S proteasome inhibitors, such as, for example, Bortezomib, are also included. In another aspect the present invention relates to autoimmune treatment with compounds of Formulae I, II, and III. In another aspect, this invention relates to methods for identifying compounds, for example, compounds of the BH3 mimic class, that have in vitro properties that predict in vivo efficacy against B-cell lymphoma tumors and other cancers as well as autoimmune disease.

An orally deliverable pharmaceutical composition comprises a Bcl-2 family protein inhibitory compound, e.g., ABT-263, a heavier-chalcogen antioxidant and a substantially non-aqueous lipid carrier, wherein said compound and said antioxidant are in solution in the carrier. The composition is suitable for oral administration to a subject in need thereof for treatment of a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, for example cancer.

The invention provides a thio / oxo-naphthalimide compound and application thereof. The compound has a structure shown as a general formula I. The compounds are capable of realizing competitive binding and antagonism of Bcl-2 and Mcl-1 proteins in vitro and in cells so as to induce cell apoptosis, and refer to a type of apoptosis inducers and antitumor compounds with extremely high activities. In addition, the derivative designed based on the compound can serve as a bifunctional molecule and is capable of recognizing, separating, enriching and realizing fluorescence detection of Bcl-2 family proteins; or the derivative can serve as a PROTAC bifunctional complex for selectively degrading the Bcl-2 and Mcl-1 proteins in the cells, so that the level of the Bcl-2 family proteins in living cells is regulated. The structural formula is as shown in the specification.

The present invention relates to a compositions for and methods for cancer treatment, for example, hematopoietic cancers (e.g. B-cell Lymphoma). In other aspects, the invention provides methods for treating particular types of hematopoietic cancers, such as B-cell lymphoma, using a combination of one or more of the disclosed compounds and, for example, 26S proteasome inhibitors, such as, for example, Bortezomib. In another aspect the present invention relates to autoimmune treatment with the disclosed compounds. In another aspect, this invention relates to methods for identifying compounds, for example, compounds of the BH3 mimic class, that have unique in vitro properties that predict in vivo efficacy against B-cell lymphoma tumors and other cancers as well as autoimmune disease.

Undifferentiated primordial stem cells are manipulated to permit their long term growth in defined media lacking serum and feeder layer cells by shifting the apoptotic balance of the cells, through increasing the activity of Bcl-2 family anti-apoptotic proteins or decreasing the activity of Bcl-2 family pro-apoptotic proteins. In some embodiments of the invention, the Bcl family protein is Bcl-2. The ES cells sustain the characteristics of undifferentiated, pluripotent stem cells during long-term serum- and feeder layer cell-free conditions, including the ability to be expanded in vitro, but maintain their potential to differentiate into mature cell types.

This invention relates to pulsatile dose administration of gossypol, a gossypol-related compound or pharmaceutical compositions thereof for treating diseases, disorders and conditions responsive to gossypol or gossypol-related compound, inhibiting the activity of anti-apoptotic Bcl-2 family proteins, inducing apoptosis in cells and increasing the sensitivity of cells to inducers of apoptosis.

This invention relates to pulsatile dose administration of gossypol or pharmaceutical compositions thereof for treating diseases, disorders and conditions responsive to gossypol, inhibiting the activity of anti-apoptotic Bcl-2 family proteins, inducing apoptosis in cells and increasing the sensitivity of cells to inducers of apoptosis.

The invention discloses a thiazole bipyrazolone compound as well as applications thereof in preparing a small molecular inhibitor of Bcl-2 family proteins and antitumor drugs, the thiazole bipyrazolone compound has the above structural formula, and the thiazole bipyrazolone compound has the activity for inhibiting the combination of Bcl-xL and natural substrate polypeptide (Bid BH3 polypeptide) in the micromole range, and can serve as the small molecular inhibitor of the Bcl-2 family proteins for inhibiting the anti-apoptosis activity thereof; and the compound shows a certain inhibitory activity to human breast cancer MDA-MB-231 cells and MCF-7 cells, and is expected to be developed into the antitumor drugs of targeted Bcl-2 family proteins.

The present invention relates to small molecule antagonists of Bcl-2 family proteins such as Bcl-2 and / or Bcl-XL. In particular, the present invention provides non-peptide cell permeable small molecules (e.g., tricyclo-dibenzo-diazocine-dioxides) that bind to a pocket in Bcl-2 / Bcl-XL that block the anti-apoptotic function of these proteins in cancer cells and tumor tissues exhibiting Bcl-2 protein overexpression. In preferred embodiments, the small molecules of the present invention are active at the BH3 binding pocket of Bcl-2 family proteins (e.g., Bcl-2, Bcl-XL, and Mcl-1). The compositions and methods of the present invention are useful therapeutics for cancerous diseases either alone or in combination with chemotherapeutic or other drugs.