1731 results about "Chemotherapeutic drugs" patented technology

The present invention relates to methods and compositions for the treatment of Hodgkin's Disease, comprising administering proteins characterized by their ability to bind to CD30, or compete with monoclonal antibodies AC10 or HeFi-1 for binding to CD30, and exert a cytostatic or cytotoxic effect on Hodgkin's disease cells in the absence of effector cells or complement. Such proteins include derivatives of monoclonal antibodies AC10 and HeFi-1. The proteins of the invention can be human, humanized, or chimeric antibodies; further, they can be conjugated to cytotoxic agents such as chemotherapeutic drugs. The invention further relates to nucleic acids encoding the proteins of the invention. The invention yet further relates to a method for identifying an anti-CD30 antibody useful for the treatment or prevention of Hodgkin's Disease.

The present invention relates to methods and compositions for the treatment of Hodgkin's Disease, comprising administering proteins characterized by their ability to bind to CD30, or compete with monoclonal antibodies AC10 or HeFi-1 for binding to CD30, and exert a cytostatic or cytotoxic effect on Hodgkin's Disease cells. Such proteins include derivatives of monoclonal antibodies AC10 and HeFi-1. The proteins of the invention can be human, humanized, or chimeric antibodies; further, they can be conjugated to cytotoxic agents such as chemotherapeutic drugs. The invention further relates to nucleic acids encoding the proteins of the invention. The invention yet further relates to a method for identifying an anti-CD30 antibody useful for the treatment or prevention of Hodgkin's Disease.

The present invention relates to methods and compositions for the treatment of Hodgkin's Disease, comprising administering proteins characterized by their ability to bind to CD30, or compete with monoclonal antibodies AC10 or HeFi-1 for binding to CD30, and exert a cytostatic or cytotoxic effect on Hodgkin's disease cells in the absence of effector cells or complement. Such proteins include derivatives of monoclonal antibodies AC10 and HeFi-1. The proteins of the invention can be human, humanized, or chimeric antibodies; further, they can be conjugated to cytotoxic agents such as chemotherapeutic drugs. The invention further relates to nucleic acids encoding the proteins of the invention. The invention yet further relates to a method for identifying an anti-CD30 antibody useful for the treatment or prevention of Hodgkin's Disease.

The present invention relates to novel fluorescent dyes, novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of caspases and other enzymes involved in apoptosis in whole cells, cell lines and tissue samples derived from any living organism or organ. The reporter molecules and assay processes can be used in drug screening procedures to identify compounds which act as inhibitors or inducers of the caspase cascade in whole cells or tissues. The reagents and assays described herein are also useful for determining the chemosensitivity of human cancer cells to treatment with chemotherapeutic drugs. The present invention also relates to novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of type 2 methionine aminopeptidase, dipeptidyl peptidase IV, calpain, aminopeptidase, HIV protease, adenovirus protease, HSV-1 protease, HCMV protease and HCV protease.

A pyrrolobenzodiazepine dimer compound of Formula (I): or pharmaceutically acceptable salt or solvate thereof is useful as a therapeutic agent for the treatment of leukaemias, especially B-cell leukaemias, that exhibit resistance to other chemotherapeutic drugs, wherein: the dotted lines indicate the optional presence of a double bond between C1 and C2 or C2 and C3; R2 and R3 are independently selected from —H, ═O, ═CH2, —CN, —R, OR, halo, ═CH—R, O—SO2—R, CO2R and COR; R6, R7 and R9 are independently selected from II, R, OII, OR, SII, SR, NII2, NIIR, NRR′, nitro, Me3Sn and halo; where R and R′ are independently selected from optionally substituted C1-12 alkyl, C3-20 heterocyclyl and C5-20 aryl groups; R10 is a carbamate-based nitrogen protecting group and R15 is either O—R11, wherein R is an oxygen protecting group, or OH, or R10 and R15 together form a double bond between N10 and C11; R″ is a C3-12 alkylene group, which chain may be interrupted by one or more heteroatoms and / or aromatic rings, and each X is independently selected from 0, S, or NH; R2′, R3′, R6′, R7′, R9′, R10′ and R15′ are all independently selected from the same lists as previously defined for R2, R3, R6, R7, R9, R10 and R15 respectively.

The present invention relates to the use of a non-lethal preparative regimen for the treatment of a patient with human immunodeficiency virus (HIV) disease. In a clinical trial, an HIV-positive patient was conditioned by non-lethal doses of irradiation and a chemotherapeutic drug prior to receiving donor bone marrow cells from a baboon. While long-term engraftment of donor cells was not observed, the non-lethal preparative conditioning regimen was able to reduce the viral burden and improved the clinical outcome. Such method is useful for treatment of patients with advanced acquired immunodeficiency syndrome (AIDS).

A method of stimulating an immune response to a tumor in an immunocompetent subject by administering a p53 expression construct to a tumor. The construct expresses p53 in tumor cells in an amount sufficient to stimulate an immune response against the tumor. Both viral and non-viral delivery systems are contemplated. The method can be combined with chemotherapy agents as well as with other cancer therapies.

The present invention relates to novel fluorescent dyes, novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of caspases and other enzymes involved in apoptosis in whole cells, cell lines and tissue samples derived from any living organism or organ. The reporter molecules and assay processes can be used in drug screening procedures to identify compounds which act as inhibitors or inducers of the caspase cascade in whole cells or tissues. The reagents and assays described herein are also useful for determining the chemosensitivity of human cancer cells to treatment with chemotherapeutic drugs. The present invention also relates to novel fluorogenic and fluorescent reporter molecules and new enzyme assay processes that can be used to detect the activity of type 2 methionine aminopeptidase, HIV protease, adenovirus protease, HSV-1 protease, HCMV protease and HCV protease.

The invention discloses a full-function liquid medicine preparation intelligent robot and a medicine preparation method thereof. The full-function liquid medicine preparation intelligent robot comprises a shell, a medicine rack, a bottle taking mechanical arm, a liquid pumping mechanical arm, a bottle clamping mechanism and a liquid medicine shaking device, and is characterized in that: the shellis provided with an operating door with a seal; the medicine rack is arranged in the shell and corresponds to the operating door; the medicine rack has a rotary structure with more than two side faces; and each side face of the medicine rack is provided with accommodating areas for different medicines, and an indoor constant temperature and disinfecting cotton ball accommodating area. The intelligent robot has the property of full functions of preparing medical liquid, nutrient solution and chemical therapy medicines, radically changes the traditional mode of preparing cytotoxic medicines andthe manual preparation environment, has the characteristics of accurate liquid preparation, sterile preparation process and no cross-infection, protects the health safety of medical workers, avoids the leakage of the cytotoxic medicines, is environment-friendly, and saves cost of hospital medication and labor cost.

The present invention provides a method for enhancing the efficacy of chemotherapeutic agents for therapy of cancer including tumors and other angiogenesis-associated diseases such as rheumatoid arthritis. The method comprises the steps of administering to an individual in need of treatment, a combination of an anti-endoglin antibody and a chemotherapeutic agent. The anti-endoglin antibody and the chemotherapeutic agent may be administered sequentially or concurrently.

The present invention provides compositions useful in treating drug-resistant microorganisms and cells, as well as related methods of identifying and using such compositions. In addition, the present invention includes compositions useful in enhancing the sensitivity of both drug-resistant and drug-sensitive microorganisms and cells to microbicidal and cytotoxic agents, including antibiotics and chemotherapeutic drugs. Methods of identifying these compositions, as well as methods of using these agents in treating both drug-resistant and drug-sensitive diseases and conditions are further provided.

The reagent, pharmaceutical formulation, kit, and methods of the invention provides a new approach to alleviate or eliminate certain negative effects associated with the use of certain cancer treatment agents (e.g. chemotherapy therapeutics, etc.) or regimens (e.g. radio therapies, etc.), including stimulation of the hypoxic stress response in tumor cells.

A method, using high intensity ultrasound, which may also be combined with a chemotherapy agent, that can result the direct destruction of tumor cells and in the reduction or elimination of local reoccurrence of cancer after removal of cancerous tissue, such as a surgical breast lumpectomy or surgical excision of a brain tumor. The method comprises either (1) the treatment of the tumor directly with High Intensity Focused Ultrasound, or (2) the treatment of the margins of the tissue surrounding the surgical cavity or void with ablative continuous wave high intensity ultrasound and a combination of a locally delivered chemotherapy agent and high intensity ultrasound, termed sonoporation. The present invention permits both the direct destruction (ablation) of tumor tissue as well as the destruction of tissue around the surgical margin and may include the enhanced local cellular uptake of locally injected chemotherapeutic drugs, all of which can be accomplished by a therapeutic ultrasound device used during surgery.

The presence of tumor nodules in organs often results in serious clinical manifestations and the permeation by cancer cells of sheaths surrounding organs often produces clinical manifestations of pleural effusion, ascites or cerebral edema. The present invention addresses this problem by providing a method for treating tumors comprising (a) intratumoral administration of a superantigen and / or (b) intrathecal or intracavitary administration of a superantigen directly into the sheath. Intratumoral superantigen results in significant and sustained reduction of the tumor size. Intrathecal administration produces significant sustained reduction of the fluid accumulation associated with clinical improvement and prolonged survival. Useful superantigen compositions for intrathecal and intratumoral injection include tumoricidally effective homologues, fragments and fusion proteins of native superantigens. Also disclosed is combined therapy that includes intratumoral or intrathecal superantigen compositions in combination with (i) intratumoral low, non-toxic doses of one or more chemotherapeutic drugs or (ii) systemic chemotherapy at reduced and non-toxic doses of chemotherapeutic drugs.

Systems and methods for treating inflammatory and proliferative diseases, and wounds, using as a pharmacon a fatty acid metabolism inhibitor, a glycolytic inhibitor, and / or an agent able to alter cellular production of reactive oxygen, or combination thereof, optionally in combination with one or more chemotherpeutic agents. In preferred embodiments, the invention combines an oxirane carboxylic acid, represented by etomoxir, with a 2-deoxyglucose compound, represented by 2-deoxy-D-glucose, and / or an antibody against UCP and / or Fas antigen. The systems and methods of the invention can be used to treat drug-resistant or multi-drug resistant cancers.

The invention provides methods for predicting whether an ovarian cancer patient's tumor will be resistant to chemotherapy. The invention also provides methods for monitoring the effectiveness of treatment, particularly a chemotherapeutic treatment, in a patient treated for ovarian cancer. The invention further provides methods for treating ovarian cancer, by reducing chemotherapeutic drug resistance in said cells. In addition, the invention provides methods of screening compounds to identify tumor cell growth inhibitors in tumor cells resistant to conventional chemotherapeutic treatment regimes.

The invention discloses a ROS (reactive oxygen species)-response nano drug delivery system which comprises UCNPs (upconversion nanophosphors), carboxylated PEG (polyethylene glycol) connected with UCNPs, a photosensitizer, a ROS-sensitive thioketal linker and an anti-tumor chemotherapeutic drug connected with the thioketal linker, wherein the photosensitizer contains carboxyl, and the excitation spectrum of the photosensitizer is superposed with the upconversion emission spectrum of UCNPs. The invention also discloses a preparation method and application of the ROS-response nano drug delivery system. The ROS-response nano drug delivery system disclosed by the invention can control the drug release temporally and spatially and can perform combination therapy of photodynamics therapy and chemotherapy to eradicate tumor once; and meanwhile, the fluorescence emitted by UCNPs or the light emitted by the photosensitizer can perform fluorescence imaging, and thus, therapy-imaging integration can be realized.

The invention provides a lipidosome-polymer drug-loaded nanoparticle and a preparation method and application thereof. The lipidosome-polymer drug-loaded nanoparticle comprises a three-layer structure, wherein the innermost layer is the drug-loaded nanoparticles formed by taking an amphiphilic cationic polymer as a carrier-coated chemotherapeutic drug; the intermediate layer is a platelet inhibitor layer adsorbed onto the surface of the drug-loaded nanoparticles; and the outermost layer is a lipid bilayer connected with tumor microenvironment responsiveness polypeptides. The lipidosome-polymer drug-loaded nanoparticle disclosed by the invention is capable of specifically targeting tumor tissues, has tumor microenvironment responsiveness, and can achieve the effects of improving tumor vascular permeability without influencing functions of blood vessels at normal tissue or cell parts, enhancing permeability and retention of the drug-loaded nanoparticles to tumor cells, enhancing the EPR effect, improving enrichment of the drug-loaded nanoparticles at tumor location and realizing high tumor killing efficiency.

Disclosed are methods for treating cancer comprising administering a xenotypic antibody and a chemotherapeutic drug to a patient suffering from cancer. Also disclosed is a method for inducing a host immune response in a patient against a multi-epitopic in vivo tumor antigen present in the host serum, which antigen does not elicit an effective host immune response, comprising administering to the patient a chemotherapeutic drug and a composition comprising a binding agent that specifically binds to a first epitope on the antigen and allowing the binding agent to form a binding agent / antigen pair, wherein an effective host immune response is elicited against a second epitope on the antigen.

The invention discloses a mitochondrion-targeting nano-drug delivery system, comprising polyethylene glycol connected with TPP and thioketal linker connected with a chemotherapeutic drug, the polyethylene glycol and the thioketal linker are connected with each other through amino and carboxyl condensation. This system also comprises DSPE-PEG and a photosensitizer; the chemotherapeutic drug forms a hydrophobic core inside, a hydrophilic shell layer is formed in the center of the polyethylene glycol, a mitochondrion-targeting crown is formed outside the TPP, and the photosensitizer is of hydrophobic structure distributed inside the core and / or around the core. TPP is selectively positioned to mitochondrion. This system is ROS responsive, the photosensitizer is laser excited to release ROS, and ROS cuts the thioketal linker to release the chemotherapeutic drug and can carry out photodynamic therapy at the same time, thus enabling synergic therapy of mitochondrion-targeting photodynamic therapy and chemotherapy. The invention also discloses a preparation method and application of the mitochondrion-targeting nano-drug delivery system.

The invention relates to a folate-targeted reduction sensitive drug-carrying polymer nano-micelle as well as a preparation method and application thereof. The delivery carrier is prepared by taking anamphiphilic triblock copolymer PCL-ss-PEG-ss-PCL as a material, and a chemotherapeutic drug adriamycin amycin and a photosensitizer indocyanine green are entrapped in a hydrophobic core of the micelle. Besides, phospholipid DSPE-PEG-NH2 with an active group is introduced into the preparation process, the DSPE end of the phospholipid has strong hydrophobic property and is inserted into the hydrophobic PCL core of the polymer micelle, the flexible hydrophilic PEG long chain exists on the outer surface of the micelle, FA with a targeting effect is connected to a PEG active distal end of the surface of the polymer micelle, and functions of active tumor targeting and reduction response drug release are integrated. The folate-targeted reduction sensitive drug-carrying polymer nano-micelle disclosed by the invention has the advantages of being small in particle size, high in dispersion property, high in drug loading capacity and encapsulation efficiency and excellent in photothermal conversion effect, can realize reduced trigger drug release, fluorescence imaging of tumor sites, tumor targeting drug delivery and chemotherapy-photothermal combination therapy and improve the tumor inhibition effect, and has wide application prospects in the targeted combination therapy aspect of tumors.

A generic structure for the peptides of the present invention includes A-X-B-C, where C is a cargo moiety, the B portion includes basic amino acids, X is a cleavable linker sequence, and the A portion includes acidic amino acids. The intact structure is not significantly taken up by cells; however, upon extracellular cleavage of X, the B-C portion is taken up, delivering the cargo to targeted cells. Cargo may be, for example, a contrast agent for diagnostic imaging, a chemotherapeutic drug, or a radiation-sensitizer for therapy. Cleavage of X allows separation of A from B, unmasking the normal ability of the basic amino acids in B to drag cargo C into cells near the cleavage event. X is cleaved extracellularly, preferably under physiological conditions. D-amino acids are preferred for the A and B portions, to minimize immunogenicity and nonspecific cleavage by background peptidases or proteases.

The invention relates to a pH / reduction dual-sensitive multifunctional nano-micelle for tumor chemotherapy and photothermal combined therapy and application of the pH / reduction dual-sensitive multifunctional nano-micelle. The pH / reduction dual-sensitive multifunctional nano-micelle is characterized in that a PCL-acetal-PEG polymer with pH sensitive characteristic, a PCL-ss-PEG-ss-PCL polymer withreduction sensitive characteristic and a phospholipid DSPE-PEG-NH2 with an active group are used as raw materials and are blended to prepare a pH / reduction intelligent responsive polymer nano-micelleas a carrier; a chemotherapeutic drug and a photosensitizer coat a hydrophobic core of the micelle; a casing is made of hydrophilic PEG and has the characteristic of long circulation and space stability; a folic acid targeting group is modified on the surface of the micelle by a covalent bond; the drug loading capacity is 4 to 10 percent, and the mass ratio of the chemotherapeutic drug to the photosensitizer is 0.5 to 2; the particle size is smaller than 200 nm. The pH / reduction dual-sensitive multifunctional nano-micelle disclosed by the invention has the advantages of good dispersity, smallparticle size, better photothermal conversion effect and high drug loading capacity and encapsulation efficiency; the effect of improving tumor suppression by tumor targeted administration, fluorescence imaging of a tumor site, pH / reduction triggered drug release and chemotherapy and photothermal combined therapy can be realized; the pH / reduction dual-sensitive multifunctional nano-micelle has a broad clinical application prospect in combined targeting therapy of tumors.

The invention relates to a slow-release injection of taxine anti-cancer drug, which comprises anti-cancer drug, slow-release finding, suspension and / or solvent. Wherein, said anti-cancer drug is taxine, 2'-hydroxy Paclitaxel, etc; the slow-release finding is polymer of hydroxyl, glycollic acid and glycolic acid, one of acetic acid ethyenyl ester polymer and polyphony; the suspension is polyphenyl (sodium), and mannite; the solvent is distilled water, injection water, absolute ethyl alcohol, etc. The invention can be injected to reduce the toxicity effect of drug, and improve the density locally to strengthen the treatment effect of chemotherapy and radiation therapy.