600 results about "Dioxygenase" patented technology

The present invention is directed to modulators of indoleamine 2,3-dioxygenase (IDO), as well as compositions and pharmaceutical methods thereof.

The present invention is directed to 1,2,5-oxadiazole derivatives, and compositions of the same, which are inhibitors of indoleamine 2,3-dioxygenase and are useful in the treatment of cancer and other disorders, and to the processes and intermediates for making such 1,2,5-oxadiazole derivatives.

The present invention is directed to N-hydroxyamidino compounds which are modulators of indoleamine 2,3-dioxygenase (IDO), as well as pharmaceutical compositions thereof and methods of use thereof relating to the treatment of cancer and other diseases.

The present invention relates to nucleic acid sequences encoding a hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27, abbreviated herein as HPPD) obtained from protists belonging to the family Blepharismidae, as well as the proteins encoded thereby, and to a chimeric gene which comprises such nucleic acid sequence, and to the use of such nucleic acid sequences, proteins or chimeric genes for obtaining plants which are tolerant to HPPD inhibitor herbicides.

The subject invention provides novel plants that are not only resistant to 2,4-D, but also to pyridyloxyacetate herbicides. Heretofore, there was no expectation or suggestion that a plant with both of these advantageous properties could be produced by the introduction of a single gene. The subject invention also includes plants that produce one or more enzymes of the subject invention “stacked” together with one or more other herbicide resistance genes. The subject invention enables novel combinations of herbicides to be used in new ways. Furthermore, the subject invention provides novel methods of preventing the development of, and controlling, strains of weeds that are resistant to one or more herbicides such as glyphosate. The preferred enzyme and gene for use according to the subject invention are referred to herein as AAD-12 (AryloxyAlkanoate Dioxygenase). This highly novel discovery is the basis of significant herbicide tolerant crop trait and selectable marker opportunities.

Compounds that modulate the oxidoreductase enzyme indoleamine 2,3- dioxygenase, and compositions containing the compounds, are described herein. The use of such compounds and compositions for the treatment and/or prevention of a diverse array of diseases, disorders and conditions, including cancer- and immune-related disorders, that are mediated by indoleamine 2,3-dioxygenase is also provided.

The present invention is directed to modulators of indoleamine 2,3-dioxygenase (IDO), as well as pharmaceutical compositions containing the same and methods for the treatment of IDO-associated diseases.

The present invention is directed to N-hydroxyamidino compounds which are modulators of indoleamine 2,3-dioxygenase (IDO), as well as compositions and pharmaceutical methods thereof.

The invention provides sulfamate serving as an indoleamine-2, 3-dioxygenase inhibitor and a preparation method and application thereof. The structure of the inhibitor is shown in the general formula I, wherein definitions of X, R1, R2, R3, R4, R5 and n are shown in the description and the claim. The invention further discloses the preparation method of the inhibitor. The compound shown in the general formula I can serve as the indoleamine-2, 3-dioxygenase inhibitor and is used for preparing medicine for preventing and/or treating indoleamine-2, 3-dioxygenase mediated diseases. The general formula I is shown in the description.

The present invention is directed to N-hydroxyamidino compounds which are modulators of indoleamine 2,3-dioxygenase (IDO), as well as compositions and pharmaceutical methods thereof.

Compounds that modulate the oxidoreductase enzyme indoleamine 2,3- dioxygenase, and compositions containing the compounds, are described herein. The use of such compounds and compositions for the treatment and/or prevention of a diverse array of diseases, disorders and conditions, including cancer- and immune-related disorders, that are mediated by indoleamine 2,3-dioxygenase is also provided.

The invention relates to a preparation method of tryptanthrin compound and a new application of tryptanthrin compound in preparing indoleamine-2,3-dioxygenase (IDO) inhibitor, in particular to an application of tryptanthrin compound in preparing IDO inhibitor and in preparing medicine for preventing and/or treating diseases having pathological characteristics of tryptophan metabolic disturbance mediated by IDO. The structure of the tryptanthrin compound is shown in formula A in the description, wherein R1 and R2 are respectively and independently selected from hydrogen, nitryl, C1 to C5 alkyl, halogen or piperazinyl. The tryptanthrin compound can be used as an IDO inhibitor with high activity and is used for treating diseases having pathological characteristics of tryptophan metabolic disturbance mediated by IDO such as tumor, cancer, Alzheimer disease, autoimmune disease, cataract, mental block, tristimania, anxiety neurosis, acquired immure deficiency syndrome (AIDS) and other serious diseases, and as a medicinal resource which is very difficult to get, the tryptanthrin compound has good potential on researching and developing new medicine.

The invention relates to novel application of berberine and derivatives thereof in preparation of medicines, in particular to application of berberine and derivatives thereof in preparation of indole amine 2, 3-dioxygenase IDO inhibitor, belonging to the medicine field. According to IDO inhibition activity detection, reversible inhibition judgment, inhibitor type judgment, Ki value determination and median effective inhibition concentration IC50 determination, the results show that berberine is reversible inhibitor and inhibition constant Ki is 8muM; and jatrorrhizine hydrochloride and palmatine hydrochloride are irreversible inhibitors, and the median effective inhibition concentrations IC50 thereof are respectively 123muM and 126muM. When the berberine and the derivatives thereof disclosed in the invention are used as IDO inhibitors, the application prospect is wide and the IDO inhibitors can be used for treating serious diseases such as cancers, AIDS, Alzheimer diseases, tristimania, cataract and the like with pathological feature of IDO-mediated tryptophan metabolism.

The invention relates to a novel indoleamine-2,3-dioxygenase (IDO) inhibitor, as well as a preparation method and an application thereof. The inhibitor is compounds of a formula I or pharmaceutically-acceptable salt, solvate, polymorph, enantiomer or racemic mixture thereof, wherein R1 or R2 is independently selected from H, C1-C5 alkyl, halogen and a substituent of a formula II and either of R1 and R2 is the substituent of the formula II; R3 is an aryl group; and n is equal to 0, 1, 2 or 3. Compared with the know IDO inhibitors, the novel IDO inhibitor has significant inhibitory effect on IDO and can be used for treatment of diseases having IDO-mediated tryptophan metabolic pathway pathological features, such as tumors, cancers, Alzheimer's disease, autoimmune diseases, cataract, psychological disorders, depression and/or anxiety. The preparation method of the novel IDO inhibitor has the advantages of being convenient in operation, having mild reaction conditions and reducing solvent consumption and pollution, thereby facilitating industrial production.

The subject invention provides novel plants that are not only resistant to 2,4-D, but also to a pyridyloxyacetate herbicide. The subject invention also includes plants that produce one or more enzymes of the subject invention “stacked” together with one or more other herbicide resistance genes. The subject invention enables novel combinations of herbicides to be used in new ways. Furthermore, the subject invention provides novel methods of preventing the development of, and controlling, strains of weeds that are resistant to one or more herbicides such as glyphosate. The preferred enzyme and gene for use according to the subject invention are referred to herein as AAD-13 (AryloxyAlkanoate Dioxygenase). This highly novel discovery is the basis of significant herbicide tolerant crop trait and selectable marker opportunities.

The present invention provides improved treatment methods by the administration of the non-physiologic D-isomer of an IDO inhibitor.

The invention relates to a preparation method of a hydrogel rapidly crosslinked by enzyme catalysis, and application thereof. A precursor of the hydrogel consists of a mixture (hereinafter referred to as No. 1 solution) of good-biocompatibility macromonomer aqueous solution with an active phenolic hydroxyl unit and dioxygenase aqueous solution which is taken as a catalyst, and the aqueous solution of the precursor can rapidly react to form a 3D polymer cross-linked network after an oxidant (usually low-concentration oxydol, hereinafter referred to as No. 2 solution) is injected. As the No. 1 solution and the No. 2 solution have low-viscosity characteristic, are suitable for being transported and injected, and can rapidly crosslink to form a gel network, the hydrogel can be used for vascular embolization treatment, cancer treatment, family planning operation blocking agents, injectable tissue engineering scaffold materials, soft tissue fillers of human body, controlled release drug carriers, anti-adhesive membranes used in operations and the like after adding one or a plurality of components with specific properties to the No. 1 solution or the No. 2 solution or the gel network.

Novel hydroxyphenyl pyruvate dioxygenase (HPPD) polypeptides, variants and fragments thereof, as well as polynucleotides encoding the same, capable of conferring commercial levels of conferring HPPD herbicide resistance or tolerance to plants. Compositions include amino acid sequences, and variants and fragments thereof, for HPPD polypeptides, as well as polynucleotides encoding the same. Methods for the production and use of HPPD herbicide resistant plants that express these novel HPPD polypeptides, methods for selectively controlling weeds in a field at a crop locus, and methods for the assay, characterization, identification and selection of these novel HPPDs are also provided.