摘要:
A gene that encodes an inhibitor of CDK4 has been discovered and its genomic nucleotide sequence has been identified. Susceptibility to certain cancers has been shown to be causatively related to the deletion of, or polymorphisms in, the CDK4I gene. The invention is therefore directed to the gene (CDK4I), the inhibitor protein, as well as therapeutic and diagnostic methods which utilize both the CDK4I gene and the CDK4I protein.
摘要:
A gene that encodes an inhibitor of CDK4 has been discovered and its genomic nucleotide sequence has been identified. Susceptibility to certain cancers has been shown to be causatively related to the deletion of, or polymorphisms in, the CDK4I gene. The invention is therefore directed to the gene (CDK4I), the inhibitor protein, as well as therapeutic and diagnostic methods which utilize both the CDK4I gene and the CDK4I protein.
摘要:
A method for detecting whether methyladenosine phosphatase (MTAse) is present in a cell sample. In one respect, the method comprises adding oligonucleotide probes to the sample, which probes are capable of specifically hybridizing to any MTAse encoding nucleic acid in the sample under conditions favoring that hybridization. Absence of MTAse in a sample is considered to be indicative of malignancy. Polynucleotides encoding MTAse, MTAse peptides and antibodies to MTAse, as well as kits for performing the methods of the invention, are provided.
摘要:
An in vivo method for depleting mammalian cells of adenosine 5′-monophosphate (AMP) useful in the treatment of certain cancers is provided. According to the method, a population of cells is obtained from a host and assayed for loss of methylthioadenosine phosphorylase (MTAse) activity. MTAse catabolizes methylthioadenosine to adenine for endogenous salvage incorporation into the intracellular AMP pool. The preferred method for assaying loss of MTAse activity is a hybridization technique for detection of a homozygous loss of the gene which encodes MTAse. Hosts having MTAse deficient tumors are treated with a therapeutically effective amount of an agent which inhibits the activity of adenylsuccinate synthetase, which converts inosine 5-monophosphate to AMP, thus depleting the tumor cells of substrates for de novo AMP production. L-alanosine is the preferred ASS inhibitory agent for use in the method of the invention.
摘要:
A method for the detecting whether methyladenosine phosphatase (MTAse) is present in a cell sample in either a catalytically active or catalytically inactive form. In one respect, the method comprises adding oligonucleotide probes to the sample, which probes are capable of specifically hybridizing to any MTAse encoding nucleic acid in the sample under conditions favoring that hybridization. Absence of MTAse in a sample is considered to be indicative of malignancy. Polynucleotides encoding MTAse, MTAse peptides and antibodies to MTAse, as well as kits for performing the methods of the invention, are provided.
摘要:
An improved method for chemotherapy of mammalian malignant cells which have an absolute requirement for methionine but lack methylthioadenosine phosphorylase (MTAse). The method comprises detection of MTAse negative cells in a mammal, administration of methionine .gamma.-lyase in sufficient amounts to reduce the volume of MTAse negative cells in the mammal, and co-administration of methylthioadenosine in amounts sufficient to ensure the continued availability of methionine to the mammal's non-malignant cells. Means for detection of MTAse negative cells are provided. Means for production and use of recombinant chemotherapeutic agents are also provided.
摘要:
An in vivo method for depleting mammalian cells of adenosine 5'-monophosphate (AMP) useful in the treatment of certain cancers is provided. According to the method, a population of cells is obtained from a host and assayed for loss of methylthioadenosine phosphorylase (MTAse) activity. MTAse catabolizes methylthioadenosine to adenine for endogenous salvage incorporation into the intracellular AMP pool. The preferred method for assaying loss of MTAse activity is a hybridization technique for detection of a homozygous loss of the gene which encodes MTAse. Hosts having MTAse deficient tumors are treated with a therapeutically effective amount of an agent which inhibits the activity of adenylsuccinate synthetase, which converts inosine 5'-monophosphate to AMP, thus depleting the tumor cells of substrates for de novo AMP production. L-alanosine is the preferred ASS inhibitory agent for use in the method of the invention.
摘要:
The present invention provides for TLR agonist conjugates (compounds) and compositions, as well as methods of using them. The compounds of the invention are broad-spectrum, long-lasting, and non-toxic combination of synthetic immunostimulatory agents, which are useful for activating the immune system of a mammal, preferably a human and can help direct the pharmacophore to the receptor within the endosomes of target cells and enhance the signal transduction induced by the pharmacophore.
摘要:
A method for delivering an isolated polynucleotide to the interior of a cell in a vertebrate, comprising the interstitial introduction of an isolated polynucleotide into a tissue of the vertebrate where the polynucleotide is taken up by the cells of the tissue and exerts a therapeutic effect on the vertebrate. The method can be used to deliver a therapeutic polypeptide to the cells of the vertebrate, to provide an immune response upon in vivo translation of the polynucleotide, to deliver antisense polynucleotides, to deliver receptors to the cells of the vertebrate, or to provide transitory gene therapy.
摘要:
The present invention provides a therapeutic method to treat non-malignant diseases characterized by the excessive tissue growth, e.g., hyperplastic diseases, comprising administering to a mammal (e.g., human) afflicted with excessive tissue growth, an effective amount of a derivative of an indole compound of formula (I):formula (I): wherein R1 is lower alkyl, (hydroxy)lower alkyl, lower alkenyl, lower alkynyl, lower cycloalkyl, phenyl, benzyl or 2-thienyl; R2, R3, R4 and R5 are the same or different and are each hydrogen or lower alkyl; each R6 is individually hydrogen, lower alkyl, hydroxy, (hydroxy)lower alkyl, lower alkoxy, benzyloxy, lower alkanoyloxy, nitro or halo, R7 is hydrogen, lower alkyl or lower alkenyl, X is oxy and thio, Y is carbonyl, —(CH2)1-3—, —(C1-C3)alkyl(CO)—, or —(CH2)1-3SO2—; Z is hydroxy, lower alkoxy, (C2-C4)acyloxy, —N(R8)(R9), phenylamino, (ω-(4-pyridyl)(C2-C4 alkoxy), (ω-((R8)(R9)amino)(C2-C4 alkoxy), an amino acid ester of (ω-(HO)(C2-C4))alkoxy, —N(R8)CH(R8)CO2H, 1′-D-glucuronyloxy, —SO3H, —PO4H2, —N(NO)(OH), —SO2NH2, —PO(OH)(NH2), —OCH2CH2N(CH3)3+, or tetrazolyl; wherein R8 and R9 are each H, (C1-C3)alkyl or together with N are a 5- or 6-membered heterocyclic ring comprising 1-3 N(R8), S or nonperoxide O; n is 0, 1, 2, or 3; wherein R8 and R9 are each H, (C1-C3)alkyl or together with N are a 5- or 6-membered heterocyclic ring comprising 1-3 N(R8), S or nonperoxide O; each alkyl or phenyl group of R1, R2, R3, R4, R5, R6, R7 and Z is optionally substituted with 1, 2, or 3 (C1-C4)alkyl groups; or a pharmaceutically acceptable salt thereof.