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107 results about "Cathepsin B" patented technology

Cathepsin B is in humans encoded by the CTSB gene. Cathepsin B belongs to a family of lysosomal cysteine proteases and plays an important role in intracellular proteolysis. Upregulation of cathepsin B is found in premalignant lesions and various pathological conditions, as well as cancers.

Polyamine analog conjugates and quinone conjugates as therapies for cancers and prostate diseases

Peptide conjugates in which cytocidal and cytostatic agents, such as polyamine analogs or naphthoquinones, are conjugated to a polypeptide recognized and cleaved by enzymes such as prostate-specific antigen (PSA) and cathepsin B are provided, as well as compositions comprising these conjugates. Methods of using these conjugates in the treatment of prostate diseases are also provided.
Owner:CELLGATE

Methods and Therapeutic Compositions Comprising Plant Extracts for the Treatment of Cancer

A method of treating cancer by targeting two proteases, MMP-9 and cathepsin B is provided. Therapeutic compositions comprising one or more plant extracts that inhibit MMP-9 and / or cathepsin B, which are capable of inhibiting neoplastic and / or endothelial cell migration, tumour growth, tumour-induced angiogenesis and / or metastasis are also provided. The therapeutic compositions of the invention can be used in the treatment of cancer, and, methods of inhibiting tumour growth, tumour metastasis, and / or tumour-induced angiogenesis using the therapeutic compositions alone or in combination with an anti-cancer agent are, therefore, also provided.
Owner:BIOPHARMACOPAE DESIGN INT

Methods and therapeutic compositions comprising plant extracts for the treatment of cancer

A method of treating cancer by targeting two proteases, MMP-9 and cathepsin B is provided. Therapeutic compositions comprising one or more plant extracts that inhibit MMP-9 and / or cathepsin B, which are capable of inhibiting neoplastic and / or endothelial cell migration, tumor growth, tumor-induced angiogenesis and / or metastasis are also provided. The therapeutic compositions of the invention can be used in the treatment of cancer, and methods of inhibiting tumor growth, tumor metastasis, and / or tumor-induced angiogenesis using the therapeutic compositions alone or in combination with an anti-cancer agent are, therefore, also provided.
Owner:BIOPHARMACOPAE DESIGN INT

Methods of treating cachexia

InactiveUS7417038B1Reduced metabolic rateIncrease blood flowPeptide/protein ingredientsMetabolism disorderDiseaseImidazoline receptor
A method of treating weight loss due to underlying disease in a patient the method comprising administering to the patient an effective amount of an agent which reduces sympathetic nervous system activity. A method of treating weight loss due to underlying disease in a patient the 10 method comprising administering to the patient an effective amount of any one or more of the following: a compound which inhibits the effect of aldosterone such as an aldosterone antagonist; a chymase inhibitor; a cathepsin B inhibitor; a 13 receptor blocker; an imidazoline receptor antagonist; a centrally acting tx receptor antagonist; a peripherally acting ct receptor antagonist; a ganglion blocking agent; a drug that has an effect on cardiovascular reflexes and thereby reduce SNS activity such as an opiate; scopolamine; an endothelin receptor antagonist; and a xanthine oxidase inhibitor. The methods are particularly useful in treating cardiac cachexia.
Owner:IMPERIAL INNOVATIONS LTD

Micromolecular conjugate based on RGD polypeptide-chemotherapy drug and nanometer prodrug system thereof

The invention relates to a micromolecular conjugate based on RGD polypeptide-chemotherapy drug and a self-assembly nanometer prodrug system thereof, and belongs to the technical field of biological medicine and nanometer medicine. The nanometer prodrug system has the main advantages that (1) the system is formed by RGD polypeptide and an anti-tumor drug through direct covalent connection via micromolecular connecting arms, and the drug loading capacity of the system is improved; (2) the conjugate is self-assembled into a nanometer prodrug using the drug as a hydrophobic inner core and the RGD polypeptide as a hydrophilic outer shell, the active targeting on tumor cells and tumor new vessels is realized through the ligand-receptor mutual action, and the endocytosis is promoted; (3) the stability of the nanometer prodrug system in the body circulation can be ensured through thioether bonds, reduction sensitive bonds and cathepsin B sensitive bonds, and the cytotoxic drug is released when the nanometer prodrug system reaches the tumor microenvironment; and (4) the micromolecular conjugate instead of a macromolecular material is used as a carrier, so that the nanometer prodrug system can favorably and better penetrate into the tumor tissues and cells to achieve better anti-tumor effects.
Owner:PEKING UNIV

Tumor marker for ovarian cancer diagnosis

The present invention relates to a tumor marker for diagnosis of ovarian cancer, which is selected from the group consisting of alectin-1, cathepsin B, MHC class I antigen, heat shock protein (HSP) 27, ubiquitin carboxy-termal esterase L1, cellular retinol-binding protein (CRBP), transthyretin, SH3 binding glutamate-rich protein, tubulin-specific chaperone A, RNA binding protein regulatory subunit, γ-actin, tropomyosin and calcium / calmodulin-stimulated cyclic nucleotide phosphatase. The ovarian cancer is diagnosed effectively and efficiently based on detecting the expression levels of the tumor markers in the invention from the ovarian tissue sample of an individual to be diagnosed.
Owner:NAT TAIWAN UNIV

Di-fluoro containing compounds as cysteine protease inhibitors

The present invention is directed to compounds that are inhibitors of cysteine proteases, in particular, cathepsins B, K, L, F, and S, and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
Owner:QUEST DIAGNOSTICS INVESTMENTS INC

Preparation and application of cathepsin B activation type targeted anti-tumor polypeptide

The invention discloses a novel cathepsin B activation type targeted anti-tumor polypeptide m(KLA)-iRGD, the molecular weight is 2570, and the amino acid sequence is D(KLAKLAKKLAKLA)KGGCRGDKGPDC. The polypeptide is formed by KLA peptide and iRGD peptide through flexible connexon Gly-Gly. The sequence of the KLA peptide is KLAKLAKKLAKLAK, and amino acids of the KLAKLAKKLAKLA sequence at the N terminal of the polypeptide are all D-amino acids. The sequence of the iRGD peptide is CRGDKGPDC. The polypeptide has the advantage that the tumor targeted peptide iRGD and the apoptosis promoting peptide KLA are connected into the new polypeptide m(KLA)-iRGD for the first time. The polypeptide m(KLA)-iRGD can be specifically combined with alphaVbeta3 and NRP-1 receptors and enter tumor cells, mitochondrial apoptosis is initiated after the polypeptide is activated by intracellular cathepsin B (CTSB), tumor cells are selectively killed, and growth and migration of tumors are remarkably inhibited. Under the same concentration, a polypeptide m(KLA)-iRGD comparison peptide has higher tumor targeting and higher capacity of inhibiting tumor growth and migration. Meanwhile, the polypeptide m(KLA)-iRGD has no obvious toxicity on mouse weight and vital organs, and a solid foundation is laid for further clinical research and application.
Owner:SUN YAT SEN UNIV

Thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of their use

The present invention relates to thio semicarbazone and semicarbazone inhibitors of cysteine proteases and methods of using such compounds to prevent and treat protozoan infections such as trypanosomiasis, malaria and leishmaniasis. The compounds also find use in inhibiting cysteine proteases associated with carcinogenesis, including cathepsins B and L.
Owner:RGT UNIV OF CALIFORNIA

Compounds and methods for downregulating the effects of TGF-beta

Methods for treating disease and health conditions associated with the presence of TGF-β including cancers, are provided comprising administering a therapeutically effective agent which acts as a TGF-β antagonist and cathepsin B inhibitor or lymphocytes transformed with a gene for expressing such an agent for overcoming the lymphocyte evading effect of TGF-β.
Owner:RVX THERAPEUTICS

Method for separating and purifying intestinal tract cathepsin B of sea cucumber

The invention relates to a method for separating and purifying intestinal tract cathepsin B of a sea cucumber, which comprises the following steps: using sodium acetate buffer solution containing L-Cys to lixiviate a sea cucumber intestine homogenate breaking buffer solution at a temperature of 4 DEG C; adopting ammonia sulfate to perform fractional precipitation; using the sodium acetate buffer solution to dissolve the precipitate; and concentrating the dissolved precipitate after dialysis and demineralization to obtain crude enzyme of the cathepsin B. The crude enzyme of the cathepsin B is processed by 2 to 3 methods of ion exchange chromatography chromatogram, gel chromatogram and high-efficiency liquid chromatogram to achieve the aim of purification.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Low-molecular-weight L-polyglutamine-mitomycin C as well as synthesis method and applications thereof

The invention relates to a low-molecular-weight L-polyglutamine-mitomycin C with the structural formula shown in the specification and the molecular weight of 1882Da-5892Da, wherein n is equal to 1500-6000. A synthesis method comprises the following steps: dissolving polyglutamic acid into water, stirring and then separating with sephadex chromatography to take polyglutamic acid with molecular weight of 1500-6000, performing freeze-drying and then adding dioxane, N-hydroxysuccinimide, a condensing agent and an acid-binding agent, evaporating out solvents and dissolving chloroform, washing with diluted hydrochloric acid and then evaporating the chloroform layer to dryness, adding a product to HBS buffer, adding mitomycin C under stirring, and then stirring reaction liquid and concentrating to dryness, and separating by using silicon gel column chromatography to obtain the low-molecular-weight L-polyglutamine-mitomycin C. The mitomycin C is modified by utilizing low-molecular-weight L-polyglutamine, and cannot penetrate cornea due to large molecular weight; the low-molecular-weight L-polyglutamine-mitomycin C can be accumulated in pterygium tissues through EPR effect; and the release of mitomycin C can be mediated by cathepsin B enzyme in the pterygium tissues so as to achieve the treatment effect.
Owner:XIAN MEDICAL UNIV

Fluorescence probe and synthetic method thereof and application of fluorescence probe in circulating tumor cell detection

The invention discloses a fluorescence probe and a synthetic method thereof and an application of the fluorescence probe in circulating tumor cell detection. The fluorescence probe comprises a fluorescence group, a cathepsin B substrate and folic acid molecules, the fluorescence group is connected with the cathepsin B substrate through a self-degradation bond, and then is connected with the folic acid molecules; the fluorescence group is excited by the excitation light under a dissociation state, and then is enable covalent connection with other molecules for quenching. The fluorescence probe is the switching-mode fluorescence probe having a spontaneous cascade amplification function, can be used for avoiding complex operation steps of antibody or nucleic acid detection during a circulating tumor cell detection process, is used for an automatic biochemical analyzer as a matching reagent, is in favor of promoting automation detection of tumor cells, and has the advantages of simple and convenient operation, short time consuming, and low apparatus requirement. The fluorescence probe can be used for positioning minimal tumor cells and tubercle in clinical operation, and has wide application prospect and large market value.
Owner:THE FIFTH AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV

Methods and compositions for diagnosis and prognosis of renal injury and renal failure

The present invention relates to methods and compositions for monitoring, diagnosis, prognosis, and determination of treatment regimens in subjects suffering from or suspected of having a renal injury. In particular, the invention relates to using a one or more assays configured to detect a kidney injury marker selected from the group consisting of Cathepsin B, Renin, Dipeptidyl Peptidase IV, Neprilysin, Beta-2-microglobulin, Carbonic anhydrase IX, and C-X-C motif chemokine 2 as diagnostic and prognostic biomarkers in renal injuries.
Owner:ASTUTE MEDICAL

Tumor microenvironment stimulation degradable amphiphilic block HPMA (hydroxypropyl methacrylate) polymer delivery system and preparation method thereof

The invention provides a tumor microenvironment stimulation degradable amphiphilic block HPMA (hydroxypropyl methacrylate) polymer delivery system which is a conjugate of HPMA polymer, cathepsin B substrate GFLG, and small-molecular drug gemcitabine; the nano delivery system formed by self-assembly of the amphiphilic block conjugate has enzyme responsive degrading capacity and drug release capacity, gemcitabine is delivered by being conjugated to the amphiphilic block HPMA polymer skeleton, the molecular weight of the system is relatively high, the system may effectively collect at a tumor part, has good biocompatibility and antitumor effect, and by introducing near-infrared fluorescent probe Cy5.5, self-tracing capacity is imparted to the system.
Owner:SICHUAN UNIV

Inhibitors of cathepsin b

The present invention is directed to a method of using compounds of Formula (I) to inhibit Cathepsin B. Specifically the compounds of the present invention are useful as therapeutic agents for the treatment of tumor invasion, metastasis, Alzheimer's Disease, arthritis, inflammatory diseases such as chronic and acute pancreatitis, inflammatory airway disease, and bone and joint disorders, including osteoporosis, osteoarthritis, rheumatoid arthritis, psoriasis, and other autoimmune disorders, liver fibrosis, including liver fibrosis associated with HCV, all types of steatosis (including non-alcoholic steatohepatitis) and alcohol-associated steatohepatitis, non-alcoholic fatty liver disease, forms of pulmonary fibrosis including idiopathic pulmonary fibrosis, pathological diagnosis of interstitial pneumonia following lung biopsy, renal fibrosis, cardiac fibrosis, retinal angiogenesis and fibrosis / gliosis in the eye, schleroderma, and systemic sclerosis. The compounds of Formula (I) are also useful for treating subjects with both HCV and fibrosis in a mammal, particularly liver fibrosis, and subjects affirmatively diagnosed or at risk for both HCV and liver fibrosis.
Owner:VIROBAY INC

Di-fluoro containing compounds as cysteine protease inhibitors

The present invention is directed to compounds that are inhibitors of cysteine proteases, in particular, cathepsins B, K, L, F, and S, and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
Owner:QUEST DIAGNOSTICS INVESTMENTS INC

Method for treating tissue damaged from ischemia

The present invention relates to a method for treating tissue damage caused by ischemia in a patient which comprises administering to said patient a therapeutically effective amount of a compound which is an inhibitor of cathepsin B or cathepsin L, but which is not as an effective inhibitor of calpain relative to cathepsin B or cathepsin L or both and which compound is a peptidyl diazomethyl ketone.
Owner:ANAGLI JOHN +1

Disease resistance evaluation method of cultured shrimps and crabs

The invention discloses a disease resistance evaluation method of cultured shrimps and crabs, and belongs to the technical field of aquatic products. Infection with equivalent pathogens is performed according to muscle weight proportions of the cultured shrimps and crabs, nine indexes of the cultured shrimps and crabs are measured including pathogen clearance power, blood cell quantities, haemocyanin contents, blood plasma AKP vitality, ALF, crustin, lysozyme, cathepsin B and LGBP, a disease resistance exponent f of an infected object is obtained by use of principal component analysis, it is indicated that the bigger the f value is, the stronger the disease resistance is, and the smaller the f value is, the weaker disease resistance is. A set of exponents adapted to integrate evaluation of the disease resistance of the cultured shrimps and crabs is constructed for solving the problem of lack of similar technologies in the field, the evaluation result is more accurate, and restrictions and uncertainties of the mode of evaluating the disease resistance through a single immunization index are overcome.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI

Biosensor for detecting cathepsin B as well as detection method and application thereof

The invention provides a biosensor for detecting cathepsin B as well as a detection method and application thereof, and belongs to the technical field of detection analysis. The biosensor at least comprises a polypeptide-DNA conjugate, a DNA template 1 and a DNA template 2. First primer DNA containing an amino acid residue is converted into new primer DNA containing no amino acid residue, the steric hinerance effect in a nucleic acid amplification process can be completely eliminated, and the amplification reaction efficiency can be improved. Meanwhile, proceeding of multiple chain replacementreactions and the circulating digestion function of ribonuclease H can further amplify a fluorescence signal, so that ultra-sensitive detection of the activity of cathepsin B can be realized, and thebiosensor has good practical application values.
Owner:SHANDONG NORMAL UNIV

Alpha ketoamide compounds as cysteine protease inhibitors

The present invention relates to compounds that are inhibitors of cysteine proteases, in particular, cathepsins B, K, L, F, and S and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
Owner:探索诊断投资有限责任公司

Enzyme-sensitive and redox-sensitive dual response type copolymer as well as preparation method and application thereof

InactiveCN108752507AIncreased environmental sensitivityHelps to penetrateOrganic active ingredientsOrganic chemistryDiseaseCathepsin B
The invention discloses an enzyme-sensitive and redox-sensitive dual response type copolymer as well as a preparation method and application thereof and belongs to the fields of high polymer chemistryand pharmaceutical preparations. The preparation method in the invention comprises the following steps: binding polyacrylic acid and vitamin E succinate by utilizing valine-citrulline (Val-Cit, VC) fragments capable of being specifically hydrolyzed by cathepsin B and disulfide bonds capable of being reduced by glutathione, thereby obtaining the dual sensitive type copolymer polyacrylic acid-VC-SS-vitamin E succinate (PAA-VC-SS-VES). The copolymer is excellent in biocompatibility and high in sensitivity, can be self-assembled to form nano-micelles in water, can be coated with hydrophobic drugs, is mainly applied to treating tumor related diseases and has an effect of intelligently releasing the drugs.
Owner:LIAONING UNIVERSITY

Polyethylene glycol-dipeptide-antitumour drug complex and use thereof

InactiveCN101837130AUnderstand sensitivityLearn about stabilityOrganic active ingredientsPeptide/protein ingredientsDipeptideCathepsin B
The invention relates to a polyethylene glycol-dipeptide-antitumour drug complex and use thereof. The invention is characterized in that cathepsin B sensitive dipeptide is adopted to couple PEG and antitumour drug, so that not only modification advantage of PEG is remained, but also specificity degradation characteristic of the cathepsin B sensitive dipeptide at tumour is fully played, and influence of PEG modification on drug activity can be overcome, thus being a better tumour therapy solution.
Owner:PEKING UNIV
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