36 results about "Farnesyl Transferase" patented technology

The present invention relates to a novel piperidine derivative represented by formula (1) which shows an inhibitory activity against farnesyl transferase or pharmaceutically acceptable salts thereof, in which A, E and G are defined in the specification; to a process for preparation of the compound of formula (1); to an intermediate which is used in the preparation of the compound of formula (1); and to a pharmaceutical composition comprising the compound of formula (1) as an active ingredient.

The present invention relates to novel hydantoin compounds represented by formula (I) which shows an inhibitory activity against farnesyl transferase, and thus can be used as an anti-cancer agent, or pharmaceutically acceptable salts thereof, in which R1, R2, R3 and R4 are as defined in the present application. The present invention also relates to a process for preparation of the compound of formula (I), and to an anti-cancer composition comprising the compound of formula (I) as an active ingredient.

The novel constructs and methods of this invention improve tolerance in plants to environmental stresses and senescence. Nucleic acids encoding a plant farnesyl transferase are described, as are transgenic plants and seeds incorporating these nucleic acids and proteins. Also provided are inhibitors of naturally-occurring farnesyl transferase which, when expressed, will enhance drought tolerance in the plants, improve resistance to senescence and modify growth habit.

Methods are provided of treating cancer with one or more farnesyl transferase inhibitors. Methods are provided for identifying cancers that are particularly susceptible to treatment with one or more farneseyl transferase inhibitors by identifying cancers that express low levels of UCH-L1.

A method for determining if a subject with cancer or precancerous lesions or a benign tumor, will respond to treatment with an inhibitor selected from the group comprising an inhibitor of one or more enzymes in the mevalonate pathway, an inhibitor of geranylgeranyl transferase, an inhibitor of farnesyl transferase or an inhibitor of squalene synthase, by (i) obtaining a sample of the cancer cells, precancerous cells or benign tumor cells from the subject, (ii) assaying the cells in the sample for the presence of a mutated p53 gene or a mutant form of p53 protein or a biologically active fragment thereof, and (iii) if the cells have the mutated p53 gene or mutant form of the p53 protein, then determining that the subject will respond to treatment with the inhibitor or combinations thereof. Some embodiments are directed to treatment with the inhibitors.

Novel quinolinone farnesyl transferase inhibitors are provided. These new compounds are useful in the treatment or prevention of synucleinopathies, such as Parkinson's Disease, Diffuse Lewy Body Disease, multiple system atrophy, and disorders of brain iron concentration including pantothenate kinase-associated neurodegeneration (e.g., PANK1), or other neurodegenerative/neurological diseases. Provided compounds are also useful in the treatment of proliferative diseases such as cancer, and in the treatment of neurological diseases, such as cognitive impairment, depression, and anxiety.

The treatment including administering to a subject a therapeutically effective amount of an inventive farnesyl transferase inhibitor compound.

Methods for treating cancer, and preferably hematological malignancy, patients include analyzing gene expression profiles and/or molecular markers of a patient to determine status and/or prognosis of the patient. The invention also provides methods of analyzing whether a non-relapsed or non-refractory patient is likely to respond to treatment with farnesyl transferase inhibitors (FTIs) and, optionally, other therapeutics. The methods are also useful for monitoring patient therapy and for selecting a course of therapy. Genes modulated in response to FTI treatment are provided and are used in formulating the profiles.

Methods for treating cancer, and preferably hematological malignancy, patients include analyzing gene expression profiles and/or molecular markers of a patient to determine status and/or prognosis of the patient. The invention also provides methods of analyzing whether a non-relapsed or non-refractory patient is likely to respond to treatment with farnesyl transferase inhibitors (FTIs) and, optionally, other therapeutics. The methods are also useful for monitoring patient therapy and for selecting a course of therapy. Genes modulated in response to FTI treatment are provided and are used in formulating the profiles.

Methods for treating cancer, and preferably hematological malignancy, patients include analyzing gene expression profiles and/or molecular markers of a patient to determine whether the patient is likely to respond to treatment with farnesyl transferase inhibitors (FTIs) and, optionally, other therapeutics. The methods are also useful for monitoring patient therapy and for selecting a course of therapy. Genes modulated in response to FTI treatment are provided and are used in formulating the profiles.

The present invention relates to methods of reducing proliferation of cells, enhancing apoptosis of cells or both in an individual in need thereof, comprising administering to the individual a combination of at least one farnesyl transferase inhibitor (FTI), such as an inhibitor of Ras function, and at least one signal transduction inhibitor (STI) in a therapeutically effective amount, wherein proliferation of cells is reduced and/or apoptosis of cells is enhanced in the individual. In one embodiment, the invention relates to a method of reducing proliferation of STI resistant cells, enhancing apoptosis of STI resistant cells, or both in an individual in need thereof, comprising administering to the individual a combination of at least one FTI and at least one STI in a therapeutically effective amount, wherein proliferation of STI resistant cells is reduced and/or apoptosis of STI resistant cells is enhanced in the individual. The present invention can be used to treat leukemia (e.g., CML) in an individual comprising administering to the individual a combination of at least one FTI and at least one STI in a therapeutically effective amount.

So far, activity of enzymes can only be detected by using radio isotope or fluorophore labeling methods when substrates of the enzymes do not have ultraviolet-visible absorption. The detection methods have the disadvantages of high cost, unfriendliness to the environment and difficult operation. The invention provides a determination method for the activity of enzymes like farnesyl pyrophosphate synthase. The method is characterized by using colourimetry to detect a produced product--pyrophosphoric acid or phosphoric acid, then reacting pyrophosphoric acid or phosphoric acid with a specific reagent and carrying out reduction so as to obtain a colored compound. The determination method has the advantages of high efficiency, sensitivity, economic performance, etc. The determination method has broad spectrum activity, can be used for detecting the activity of geranylgeranyl pyrophosphate synthetase (GGPPS), squalene synthetase (SS), farnesyl transferase (FTase), geranylgeranyl transferase (GGTase), mevalonate pyrophosphate decarboxylase (MDD), etc. except the activity of farnesyl pyrophosphate synthase, and is applicable to high flux screening of enzyme inhibitors and development of drugs.

The present invention provides novel 5-substituted tetralones of Formulas (I), (II), (III) and (IV) and pharmaceutically acceptable salts, esters, amides, and prodrugs thereof, which are useful for treating and preventing uncontrolled or abnormal proliferation of tissues, such as cancer, atherosclerosis, restenosis, and psoriasis. Specifically, the present invention relates to compounds that inhibit the farnesyl transferase enzyme.

The invention relates to a farnesyl transferase variant and a preparation method thereof, a farnesyl transferase protein sequence is screened out, genes of the farnesyl transferase protein sequence are subjected to high-density fermentation induced expression through an escherichia coli expression system after codon optimization, and the expression quantity is high; The invention further provides a soluble expression method without deformability and renaturation, and the purification step is simple and convenient. The specific enzyme activity detection shows that the prepared farnesyl transferase has very strong enzyme activity, and a tool enzyme capable of being industrially produced is provided for protein coupling.

The present invention relates to a novel process for preparing pyrrole ester compounds, which are key intermediates in the preparation of farnesyl transferase inhibitors, an anti-cancer agent. Horner-Emmons reaction of aldehyde compounds provides the corresponding alpha,beta-unsaturated esters, which without any separation and/or purification steps, are treated with toluenesulfonylmethylisocyanate in the presence of base to give pyrrole esters in one-pot fashion.

Resistance to kinase inhibitors is the biggest disorder of effective treatment for cancer patients. The recent research shows that the occurrence of the drug resistance may not only be generally considered by people to be explained by the existing drug-resistant subcloning drug selection, but also be caused by the generation of a small amount of drug-resistant cells (DTC) and entering a slow circulation state through the cells, so that the drug resistance has a resistance effect on treatment at the beginning. Therefore, a novel promising method should be adopted for the DTCs to prevent secondary drug resistance to kinase inhibitors. At present, the inventor has proved that inhibition of farnesyl transferase (but not geranyl geranyl transferase) can prevent the drug resistance in different carcinogenic environments. Particularly, the inventor determines the curative effect of a farnesyl transferase inhibitor (namely tipifarnib) and erlotinib which are jointly used in several EGFR (epidermal growth factor receptor) mutant cell lines in vitro. It is shown that the combination can effectively eliminate all drug-resistant cells and completely prevent the occurrence of drug-resistant cloning. It is interesting that similar results are also observed in other oncogenic models, such as ALK-translocated lung cancer cells or BRAF-mutated melanoma cells. Therefore, the present invention relates to the use of farnesyltransferase inhibitors in the treatment of kinase inhibitor resistant cancers.