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35 results about "Microsome" patented technology

In cell biology, microsomes are heterogenous vesicle-like artifacts (~20-200 nm diameter) re-formed from pieces of the endoplasmic reticulum (ER) when eukaryotic cells are broken-up in the laboratory; microsomes are not present in healthy, living cells.

CYP450 enzyme related to tetrandrine biosynthesis as well as biological material and application of CYP450 enzyme

The invention discloses a tetrandrine biosynthesis-related CYP450 enzyme as well as a biological material and application thereof. The name of the CYP450 enzyme to be protected is CYP82BC1, the CYP450 enzyme is derived from stephania tetrandra, and the amino acid sequence of the CYP450 enzyme is a sequence 2 in a sequence table. According to the invention, microsome extracting solutions of CYP82BC1 and CYP80Q4 proteins are extracted to carry out three groups of substrate enzymatic reactions, and compared with a CYP80Q4 enzyme independent catalytic reaction, the CYP82BC1 can catalyze a catalytic product of the CYP80Q4 enzyme to continue cyclization to generate the cyclized bisbenzylisoquinoline alkaloid. The method can be applied to biosynthesis of cyclized bisbenzylisoquinoline alkaloid and / or an effective component tetrandrine of stephania tetrandra and breeding of stephania tetrandra.
Owner:INSTITUTE OF CHINESE MATERIA MEDICA CHINA ACADEMY OF CHINESE MEDICAL SCIENCES

Methods for treating patients with familial hypercholesterolemia

The present invention provides methods for treating patients suffering from familial hypercholesterolemia, including both HeFH and HoFH. The methods of the invention provide for lowering at least one lipid parameter in the patient by administering a therapeutically effective amount of an antibody or antigen-binding fragment thereof that specifically binds to ANGPTL3 in combination with a therapeutically effective amount of a statin, a first lipid lowering agent other than a statin, and a second lipid lowering agent other than a statin. The first non-statin lipid lowering agent is an agent that inhibits cholesterol uptake (e.g. ezetimibe) and the second non-statin lipid-lowering agent is an inhibitor of microsomal triglyceride transfer protein (e.g. lomitapide). The combination therapy is useful in treating hypercholesterolemia, as well as hyperlipidemia, hyperlipoproteinemia and dyslipidemia, including hypertriglyceridemia, chylomicronemia, and to prevent or treat diseases or disorders, for which abnormal lipid metabolism is a risk factor, such as cardiovascular diseases.
Owner:REGENERON PHARMACEUTICALS INC

Zingiberone epoxidase protein in ligustrum sinense as well as biological material and application of zingiberone epoxidase protein

The invention discloses zingiberone epoxidase protein in ligustrum sinense as well as a biological material and application of the zingiberone epoxidase protein. The amino acid sequence of the zingiberone epoxidase protein CYP76S110 to be protected in the ligustrum sinense is 2 in a sequence table, and the coding nucleotide sequence of the zingiberone epoxidase protein CYP76S110 is 1 in the sequence table. According to the embodiment of the invention, after the coding gene of the CYP76S110 protein is introduced into yeast for expression, an obtained recombinant yeast microsome solution containing the CYP76S110 protein can be used for catalyzing zingiberone to synthesize zingiberone epoxide (zingiberone epoxide), and the recombinant yeast microsome solution can be used for catalyzing zingiberone to synthesize zingiberone epoxide (zingiberone epoxide). The method can be applied to in-vitro biosynthesis of the zingiberone derivative.
Owner:INSTITUTE OF CHINESE MATERIA MEDICA CHINA ACADEMY OF CHINESE MEDICAL SCIENCES

Composition and use of an ophthalmic solution based on hyaluronic acid and arabinogalactan

ActiveCA3153905CTocopherol succinateSuccinic acid
The antioxidant activity of alpha-tocopherol polyethylene glycol 1000 succinate (TPGS) and of alpha-tocopherol succinate (TS) has been examined in isolated hepatocytes and microsomal fractions from rat liver. Both TPGS and TS require esterase activity to yield free alpha-tocopherol and, hence, antioxidant activity. TPGS and TS consistently exerted a more effective antioxidant protection than an equivalent amount of directly-added free alpha-tocopherol. The low antioxidant efficiency of directly added free alpha-tocopherol in such water-based experimental systems as used here seems to be due to its extreme hydrophobicity. TPGS, on the other hand, is an extremely hydrophilic compound which is being examined as a useful source of alpha-tocopherol in certain clinical situations and is here shown to be a convenient and effective source for experimental studies into lipid peroxidation and antioxidant mechanisms.
Owner:MD ITAL SRL

CYP450 enzyme CYP80Q4 participating in biological synthesis of stephania tetrandra alkaloid and application of CYP450 enzyme CYP80Q4

The invention discloses a CYP450 enzyme CYP80Q4 participating in biological synthesis of stephania tetrandra alkaloid and application of the CYP450 enzyme CYP80Q4. According to the technical scheme, the cytochrome P450 enzyme from stephania tetrandra is applied to catalysis of a C-O coupling reaction of a compound to generate bisbenzylisoquinoline alkaloid, the name of the protein is CYP80Q4, and the amino acid sequence is a sequence 2 in a sequence table. After a CYP80Q4 gene is expressed in yeast, a microsome extracting solution containing CYP80Q4 protein is extracted, substrates are screened through a substrate spectrum enzymatic reaction, and 10 groups of obtained substrates can be subjected to a C-O coupling reaction under the catalysis of CYP80Q4 enzyme to generate the bisbenzylisoquinoline alkaloid. The method can be applied to the biosynthesis of the dibenzylisoquinoline alkaloid and / or the effective component tetrandrine of the stephania tetrandra, and the breeding of the stephania tetrandra.
Owner:INSTITUTE OF CHINESE MATERIA MEDICA CHINA ACADEMY OF CHINESE MEDICAL SCIENCES

Compositions comprising inhibitors of microsomal triglyceride transfer protein and APO-b secretion

The present invention relates to pharmaceutical composition(s) comprising particles comprising one or more compounds which are inhibitors of microsomal triglyceride transfer protein and / or apolipoprotein B (Apo B) secretion, wherein at least 50% of the particles are characterized by a volume particle fraction less than 10 μm, more preferably less than 5 μm, more preferably less than 2.5 μm. The pharmaceutical composition can be useful for the prevention and treatment of various diseases, particularly atherosclerosis and its clinical sequelae, for lowering serum lipids, and related ailments. The invention further relates to methods of treating diseases, such as hypertriglyceridemia, hyperchylomicronemia, atherosclerosis, obesity, and related conditions using the compounds. A method for decreasing apolipoprotein B (apo B) secretion is also provided.
Owner:REDUX THERAPEUTICS LLC

A taxol ganoderma spore oil self-nanoemulsion composite microparticle with ganoderma spores as a carrier, and a preparation method and use thereof

The present application relates to a kind of ganoderma lucidum spore as carrier paclitaxel ganoderma lucidum spore oil self-nanoemulsion composite microparticle and its preparation method, belong to medical technology field.The pretreated ganoderma lucidum spore (GLS) is obtained by process screening, and it is used as drug carrier, and the paclitaxel ganoderma lucidum spore oil self-nanoemulsion (PGS) is loaded therein, and paclitaxel composite microparticle (PGS@GLS) is obtained.Release curve in vitro shows that PGS@GLS has the characteristics of slow release after reaching intestinal tract;In vivo pharmacodynamics experiment shows that PGS@GLS can significantly inhibit the development and metastasis of colorectal cancer in mice;Tumor tissue section immunofluorescence analysis shows that PGS@GLS can effectively exert the therapeutic effect on colon cancer.Paclitaxel self-nanoemulsion ganoderma lucidum spore composite microparticle promotes cancer immune cycle by inducing immunogenic cell death and immune regulation, significantly improves the treatment effect of colon cancer, and has good biological safety.
Owner:ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE

Antiviral drug screening marker and application of microsome triglyceride transfer protein inhibitor in preparation of antiviral drugs

The invention provides an antiviral drug screening marker and application of a microsome triglyceride transfer protein inhibitor in preparation of an antiviral drug, and finds new application of the microsome triglyceride transfer protein inhibitor in antiviral infection for the first time compared with the prior art. Experiments prove that the expression level of the microsome triglyceride transfer protein in the process of infecting cells with vesicular stomatitis virus is remarkably increased, and the microsome triglyceride transfer protein is used as an antiviral drug screening marker. The invention provides a new target spot for the treatment of virus infection, and the lomitapide as a marketed drug has verified safety, can be quickly transformed and applied, and has a wide application prospect. The invention has broad spectrum potential of targeting host factors or being effective to various viruses (such as coronavirus and influenza virus).
Owner:AFFILIATED HOSPITAL OF INNER MONGOLIA MEDICAL UNIV (INNER MONGOLIA AUTONOMOUS REGION CARDIOVASCULAR INST)

A method and device for predicting changes in drug content in a living body

The present invention discloses a method and device for predicting changes in the content of a drug in a living body. The present invention uses microsomes to construct a kinetic reaction system of a test substance in vitro, allowing the test substance to fully react in the microsomes, and determining the reaction conditions for conducting in vitro kinetic experiments using microsomes. Through the constructed microsomal reaction system, the metabolic rate of the test substance in the liver and / or small intestine of the living body is calculated, and its metabolic kinetic parameters are written into calculus equations using a computer, and then solved to finally obtain the kinetic process of the test substance, thereby making up for the shortcomings of conducting toxicity experiments using in vitro biological tissues. The present invention can analyze the toxicity characteristics of drugs in the liver of mice and predict the dose that produces liver toxicity without the need for animal experiments.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS

Polymeric particle detection reagent, detection particle and detection sample preparation method

The polymer particle detection reagent, the detection particles and the detection sample preparation method are used for target object detection, the detection particles in a sample form the detection sample, a to-be-detected object in the detection sample and the detection particles are combined and aggregated to form aggregated microparticles, the detection sample is subjected to image shooting, a detection sample image is obtained, and through image analysis, a detection result is obtained. The content of a target object in a detection sample is obtained based on the number or area information of the agglomerated microparticles, and a detection reagent B is included; the detection reagent B comprises detection particles; the surface of the detection particle comprises any one of antigen, antibody, protein or enzyme; the detection reagent B comprises a buffering agent, and the concentration of the buffering agent is 10-100 mmoL.
Owner:SHENZHEN ANLV MEDICAL TECH CO LTD

Method for predicting risk of recurrence of autoimmune hepatitis after discontinuation of immunosuppressive therapy

ActiveRU2865535C1AutoantibodyElevated igg
FIELD: clinical gastroenterology.SUBSTANCE: intended to predict the risk of relapse of autoimmune hepatitis after discontinuation of immunosuppressive therapy. The patient undergoes a clinical and biochemical examination and the relapse risk probability index is determined using the formula: PI RR = –0.394×(IGA≥ 9) + 1.252×(AT) + 0.915×(a-SLA / LP) + 0.555×(a-LKM1) – 0.692×(IgG norm) + 0.316×(obesity), where PI RR is the prognostic index of recurrence risk; HAI is the histological activity index of more than 9 according to Knodell (binary indicator: HAI ≥ 9 corresponds to the multiplier “1”; HAI < 9 corresponds to the multiplier “0”); AB – the presence of autoantibodies (binary indicator: detection of at least 1 corresponds to the multiplier “1”; absence of autoantibodies corresponds to the multiplier “0”); a-SLA / LP – antibodies to soluble liver / kidney antigen (binary indicator: presence – corresponds to the multiplier “1”; absence – corresponds to the multiplier “0”); a-LKM1 – antibodies to liver and pancreas microsomes (binary indicator: presence corresponds to the multiplier “1”; absence corresponds to the multiplier “0”); IgG – immunoglobulin G (binary indicator: normal Ig G level corresponds to the multiplier “1”; elevated IgG level corresponds to the multiplier “0”); obesity (BMI ≥ 30) – (binary indicator: presence of BMI ≥ 30 corresponds to a multiplier of “1”; BMI < 30 corresponds to the multiplier “0”). With the value of PI RR < 0.93 – low probability of relapse, PI RR > 0.93 – high probability of relapse.EFFECT: increased accuracy in predicting the risk of recurrence of autoimmune hepatitis after discontinuation of immunosuppressive therapy.1 cl, 2 ex
Owner:GOSUDARSTVENNOE BYUDZHETNOE UCHREZHDENIE ZDRAVOOKHRANENIYA GORODA MOSKVY MOSKOVSKIJ KLINICHESKIJ NAUCHNO PRAKTICHESKIJ TSENTR IMENI A S LOGINOVA DEPARTAMENTA ZDRAVOOKHRANENIYA GORODA MOSKVY

Production and application of ganoderic acid based on acetyltransferase GlAT

PendingCN121592748AMicroorganism based processesEnzymesHeterologousGanoderic acid T
The invention relates to production and application of ganoderic acid based on acetyltransferase GlAT, which comprises the following steps: transforming acetyltransferase GlAT in ganoderma lucidum into a corresponding saccharomyces cerevisiae strain for heterologous expression, and implementing heterologous biosynthesis of ganoderic acid TN (GA-TN), ganoderic acid X (GA-X) and ganoderic acid T-Q (GA-T-Q) through fermentation culture, furthermore, GlAT yeast microsomes are prepared to perform in-vitro enzymatic reaction, so that the production of ganoderic acid R (GA-R), ganoderic acid P (GA-P), ganoderic acid Mk (GA-Mk), ganoderic acid T (GA-T) and ganoderic acid T1 (GA-T1) is realized. According to the invention, acetyltransferase participating in ganoderic acid biosynthesis is excavated and identified and is subjected to heterologous expression in saccharomyces cerevisiae, and a plurality of ganoderic acid compounds are obtained through fermentation culture or microsome reaction.
Owner:SHANGHAI JIAOTONG UNIV

High-throughput screening for ligands of transmembrane proteins

A high-throughput screening for at least one ligand of at least one transmembrane protein (TP) of interest that is embedded in a lipid bilayer of at least one endogenous microsome derived from plant-based endoplasmatic reticulum (ER). The screening includes providing at least one endogenous microsome that includes at least one lipid bilayer embedded TP or at least one endogenous microsomal fragment that includes at least one lipid bilayer embedded TP, and providing at least one analyte of interest, contacting of the at least one TP with the at least one analyte and detection of interaction between the at least one analyte and the at least one TP. The screening is suitable for high multiplex grades of TPs and analytes and for a fast and reproducible identification of ligands as potential drug candidates. All essential products, consumables and kits for use in the high-throughput screening are described.
Owner:LENIOBIO GMBH

Application of gene expression enhancer in promotion of neuronal growth

The invention discloses application of a gene expression enhancer in promotion of neuronal growth. The invention provides and verifies that the growth of neurons can be promoted by enhancing the expression of the microsome glutathione S transferase 3 gene for the first time, and the regeneration of a nervous system after injury and the recovery of sensory and motor functions are realized. The microsome glutathione S transferase 3 can be used as a new target of related drugs for diseases caused by nerve injury and neurodegenerative diseases, and has an excellent clinical application prospect.
Owner:NANTONG UNIV

Flavanone C3-hydroxylase gene of camptotheca acuminate, vector, protein and application

PendingCN120536459AFungiMicroorganism based processesEnzyme GeneFlavonoid biosynthesis
The invention provides a flavanone C3-hydroxylase gene of camptotheca acuminate, a carrier, a protein and application, and belongs to the technical field of bioengineering.CYP71A hydroxylase genes CYP71AU223 and CYP71AU224 in the camptotheca acuminate are obtained through screening, plasmids are constructed and introduced into a saccharomyces cerevisiae WAT11 host cell, the host cell is used for inducing expression of two microsomal proteins of CYP71AU223 and CYP71AU224, and therefore the flavanone C3-hydroxylase gene of the camptotheca acuminate is obtained. The two microsomal proteins both show C-3 site hydroxylation activity on the key intermediate naringenin for flavone biosynthesis, and can be used for preparing the citrus aurantium. According to the invention, molecular docking and site-specific mutagenesis technologies are combined to determine substrate oriented stable key residues of two proteins CYP71AU223 and CYP71AU224, the catalytic activity of the key residues is improved, and the types of hydroxylase at C3 site of flavonoid compounds are enriched.
Owner:SICHUAN AGRI UNIV

Image-based C-reactive protein detection and formula acquisition method and device

The invention discloses an image-based C-reactive protein detection and formula acquisition method and device, and the method comprises the steps: A, adding detection particles into a sample, enabling the content of the detection particles in the sample to be equal to a set value, enabling the surfaces of the detection particles to comprise CRP antibodies, and enabling the detection particles in the sample to be combined and aggregated with C-reactive protein to form aggregated particles; step B, shooting a microscopic image of the sample to obtain an image of agglomerated microparticles and / or detection microparticles; and step C, performing image analysis on the image to obtain a C-reactive protein detection qualitative or quantitative conclusion. C-reactive protein which cannot be observed under a common magnification factor can be adjusted into agglomerated microparticles with the size equivalent to that of visible components such as red blood cells or white blood cells, and qualitative or quantitative analysis results of the to-be-detected C-reactive protein are obtained by means of image analysis of the agglomerated microparticles, so that a C-reactive protein detection item is accurate and accurate. And the detection cost and the detection expense are greatly saved on the basis of microscopic images like detection items such as red blood cells or white blood cells.
Owner:SHENZHEN ANLV MEDICAL TECH CO LTD

SPR (Surface Plasmon Resonance) microfluidic chip and detection device

The utility model provides an SPR (Surface Plasmon Resonance) microfluidic chip and a detection device, and relates to the technical field of experimental detection. The microfluidic chip is provided with flow channels, two ends of each flow channel are respectively provided with a first microtube and a second microtube, the first microtube and the second microtube are respectively provided with an inflow end and an outflow end, and the outflow end of the first microtube is communicated with the inflow end of the second microtube through the flow channels; the inflow end of the first microtube and the outflow end of the second microtube are located on the first surface of the microfluid chip, and the outflow end of the first microtube and the inflow end of the second microtube are located on the second surface of the microfluid chip. The detection device comprises a light source and a gold film layer, the flow channel is coupled with the gold film layer, and the side where the gold film layer is located faces the light source. By improving the specific structure of the microfluidic chip, the combination of the cell membrane protein and the antibody drug can be determined in real time and in situ, the expression and purification of the membrane protein are not needed, the cell is directly used for determination, and the allosteric and activity loss of the membrane protein is avoided.
Owner:CHINA INST FOR FOOD & DRUG CONTROL (MEDICAL DEVICE STANDARDS MANAGEMENT CENT OF THE STATE FOOD & DRUG ADMINISTRATION CHINA GENERAL INST FOR MEDICAL PROD INSPECTION)

Use of a marker for antiviral drug screening, a microsomal triglyceride transfer protein inhibitor in the preparation of antiviral drugs

ActiveCN121227875BPeptide/protein ingredientsDigestive systemMicrosomal triglyceride transfer proteinTG - Triglyceride
The application provides an antiviral drug screening marker and an application of a microsomal triglyceride transfer protein inhibitor in preparation of an antiviral drug, and compared with the prior art, the application firstly finds a new use of the microsomal triglyceride transfer protein inhibitor in antiviral infection. The application proves by experiments that the expression level of the microsomal triglyceride transfer protein is significantly increased in the process of vesicular stomatitis virus infection of cells, and the microsomal triglyceride transfer protein is used as an antiviral drug screening marker. The application provides a new target for treatment of viral infection, and lomitapide is an already-marketed drug, the safety of which has been verified, can be quickly converted for application, and has wide application prospect. Moreover, the application has broad-spectrum potential: targeting a host factor, or being effective for multiple viruses (such as a coronavirus and an influenza virus).
Owner:AFFILIATED HOSPITAL OF INNER MONGOLIA MEDICAL UNIV (INNER MONGOLIA AUTONOMOUS REGION CARDIOVASCULAR INST)

Liver / mitochondria dual-targeting carboxylesterase fluorescent probe as well as preparation method and application thereof

The invention discloses a liver / mitochondria dual-targeting carboxylesterase fluorescent probe as well as a preparation method and application thereof, and belongs to the technical field of medicines. The probe is a compound LDM-CA, has the liver and mitochondria dual-targeting characteristic, and shows high selectivity, sensitivity and strong binding affinity to CEs. In-vitro cell experiments show that the LDM-CA has excellent mitochondrial targeting ability in the HCC cells and specific fluorescence opening response to CEs in the cells, and can clearly distinguish the HCC cells from normal liver cells or non-liver cancer cells. In-vivo imaging of a mouse model shows that no matter in-tumor injection or intravenous injection, the LDM-CA can effectively visualize the HCC tumor and draw the edge of the tumor, has the prospect of serving as a powerful molecular tool for early HCC diagnosis and image-guided surgery, and also provides a valuable means for studying the action of mitochondrial CEs activity in HCC pathogenesis at the subcellular level.
Owner:AFFILIATED HOSPITAL OF YOUJIANG MEDICAL UNIV FOR NATTIES

Hibiscus chrysanthemum active ingredient compound and preparation method thereof

The present invention discloses a Hibiscus tiliaceus active ingredient compound and a preparation method thereof, belonging to the field of compound technology. The compound has the general structural formula: wherein: R1 is an alkyl group or hydrogen; R2 is a hydroxyl group, a carboxyl group, an ether bond, or hydrogen; and R3 is a hydroxyl group, a carboxyl group, an ether bond, or hydrogen. The present invention incubates tansyl in a liver microsomal incubation system, followed by silica gel column chromatography and semi-preparative high-pressure liquid separation to obtain new compounds GDX 3, named tanacetinometin A, and GDX 7-3, named tanacetinometin C.
Owner:CHINA NAT INST OF STANDARDIZATION

CYP450 enzyme CYP82BC4 as well as biological material and application thereof

The invention discloses a CYP450 enzyme CYP82BC4 as well as a biological material and application of the CYP450 enzyme CYP82BC4. The CYP82BC4 to be protected is derived from stephania tetrandra, and the amino acid sequence of the CYP82BC4 is a sequence 2 in a sequence table. According to the invention, microsome extracting solutions of CYP82BC4 and CYP80Q4 proteins are extracted to carry out three groups of substrate enzymatic reactions, and compared with a CYP80Q4 enzyme independent catalytic reaction, the CYP82BC4 can catalyze a catalytic product of the CYP80Q4 enzyme to continuously carry out cyclization so as to generate the cyclized bisbenzylisoquinoline alkaloid. The method can be applied to biosynthesis of cyclized bisbenzylisoquinoline alkaloid and / or an effective component tetrandrine of stephania tetrandra and breeding of stephania tetrandra.
Owner:INSTITUTE OF CHINESE MATERIA MEDICA CHINA ACADEMY OF CHINESE MEDICAL SCIENCES

C-Met targeted proteolysis chimera for treating gastric cancer as well as preparation method, pharmaceutical composition and application of C-Met targeted proteolysis chimera

The invention discloses a C-Met targeted proteolysis chimera for treating gastric cancer as well as a preparation method, a pharmaceutical composition and application of the C-Met targeted proteolysis chimera, belongs to the technical field of chemical medicines, and solves the druggability problems of complex preparation, low C-Met degradation efficiency, insufficient in-vivo and in-vitro antitumor activity, poor oral bioavailability, poor plasma stability and the like of an existing C-Met inhibitor. The preparation process is simple and easy to implement, the prepared proteolysis targeted chimera or the pharmaceutically acceptable salt thereof has the effect of efficiently degrading C-Met in a targeted manner, a C-Met degrading agent is obtained, and the C-Met degrading agent has high in-vivo and in-vitro anti-tumor activity; all the prepared compounds show the inhibition capability on human gastric cancer cells SNU-620 and Hs746T, and all the prepared compounds show the degradation effect on C-Met protein in the SNU-620 cells; the prepared compound liver microsome is relatively good in stability and shows certain oral bioavailability. In addition, the compound has good plasma stability and good patent medicine potential and is suitable for development of drugs for treating cancers such as gastric cancer.
Owner:NANKAI UNIV

C-met targeted proteolysis chimera for treating gastric cancer, preparation method, pharmaceutical composition and application thereof

ActiveCN121850986BHuman gastric carcinomaPharmaceutical medicine
The application discloses a C-Met targeted proteolysis chimera for treating gastric cancer and a preparation method, a pharmaceutical composition and application thereof, and belongs to the technical field of chemical medicines. The C-Met inhibitor preparation is complex, the C-Met degradation efficiency is low, the in-vivo and in-vitro anti-tumor activity is insufficient, the oral bioavailability is poor, and the plasma stability is poor, and the like, and the problems of the prepared medicine are solved. The preparation process is simple and easy to implement, the prepared proteolysis targeted chimera or pharmaceutically acceptable salt thereof has the effect of high-efficiency targeted degradation of C-Met, a C-Met degradation agent is obtained, and the in-vivo and in-vitro anti-tumor activity is high. All the prepared compounds show the inhibition ability on human gastric cancer cells SNU-620 and Hs746T, and show the degradation effect on C-Met protein in SNU-620 cells. The liver microsomal stability of the prepared compound is relatively good, and a certain oral bioavailability is shown. In addition, the compound has good plasma stability, has good medicine potential, and is suitable for the development of medicines for treating gastric cancer and other cancers.
Owner:NANKAI UNIV

Method for synthesizing 2,2',4,5,5'-pentachloro-4-biphenylcarbinol based on pig liver microsomal incubation system

The application discloses a method for synthesizing 2,2',4,5,5'-pentachloro-4-biphenyl alcohol based on a pig liver microsome incubation system, which comprises the following steps: establishing a pig liver microsome incubation system, and adding a substrate 2,2',4,5,5'-pentachlorobiphenyl; the 2,2',4,5,5'-pentachlorobiphenyl is metabolically converted by pig liver microsomes to form 2,2',4,5,5'-pentachloro-4-biphenyl alcohol; after termination of the incubation, isopropyl alcohol, dichloromethane and n-hexane are added to the incubation solution, and after oscillation and centrifugation, the organic phase is transferred and volatilized under high-temperature and reduced-pressure conditions; the 2,2',4,5,5'-pentachloro-4-biphenyl alcohol is directly converted, the lipid impurities are removed through concentrated sulfuric acid sulfonation reaction, the residual 2,2',4,5,5'-pentachlorobiphenyl is separated by using a silica gel column, and thus the purified 2,2',4,5,5'-pentachloro-4-biphenyl alcohol is obtained, and the method has the advantages of simple operation, high conversion efficiency, no interference of isomers, and high purity of target products.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS

New astatoaryl compounds and their use

The inventors have now succeeded in developing new astatoaryl compounds, as well as a method for synthesizing said astatoaryl compounds comprising the step of reacting aryl compounds carrying a leaving group with astatine. These astatoaryl compounds have the advantage of having one hydrogen bond donor in the At environment which improves stability against oxidative deastatination and a second hydrogen bond donor which further improves this stability. In particular, benzylic alcohol functions in ortho position to At successfully leads to improved stability compared to the gold standard astatobenzoate in KMnO4 solution or human and rat microsomes. The present invention relates to astatoaryl compounds, a method for synthesizing astatoaryl compounds comprising the reaction of an aryl compound carrying a leaving group with astatine. The invention also concerns a method of synthesizing an astatolabelled biomolecule and / or vector using said astatoraryl compound.
Owner:INST NAT DE LA SANTE & DE LA RECHERCHE MEDICALE (INSERM) +2

Application of virus-modified microsomes electrospun scaffold by inducing fibroblast in situ reprogramming in nerve injury

The present application relates to the technical field of biological medicine, and more particularly to the application of virus modified micro-gel electrospun scaffold in nerve injury by inducing in-situ reprogramming of fibroblasts. The present application provides a micro-gel electrospun scaffold which is modified with a polydopamine coating and grafted with a shPTB lentivirus vector; the matrix of the scaffold is prepared from brain-derived neurotrophic factor, poly-L-lactic acid and hyaluronic acid. The present application also provides a preparation method and use of the scaffold. Compared with conventional nerve injury biomaterial therapy, the micro-gel electrospun scaffold system can improve multiple characteristics such as a large number of inflammatory factors generated in the microenvironment after injury, lack of neurotrophic factors, and scar tissue proliferation.
Owner:THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV

C24-site hydroxylase gene CYP714E67 of stamen eugenin C, CYP714E67 protein and application of C24-site hydroxylase gene CYP714E67 and CYP714E67 protein of stamen eugenin C

The invention provides a C24-site hydroxylase gene CYP7140E67 of stamen eugenin C, a CYP7140E67 protein and application of the C24-site hydroxylase gene CYP7140E67 and belongs to the technical field of genes. According to the invention, the key enzyme for catalyzing hydroxylation of the C24 site of the stamen eugenin C is successfully found and identified, the blank of research on the catalytic enzyme in aesculus chinensis is filled, and a key gene and a protein coding sequence are provided for biosynthetic pathway analysis and synthetic biology research of the original aescin and derivatives thereof. Moreover, the proaescin is heterogeneously synthesized by expressing the CYP714E67 in the Bensi tobacco leaves, a living body biosynthesis system is constructed, the CYP714E67 is heterogeneously expressed by utilizing saccharomyces cerevisiae, and the in-vitro synthesis of the proaescin is realized by virtue of yeast microsomes, so that a flexible path is provided for industrial production; the problem of resource supply of aescin A is solved, and a solid foundation is laid for promoting cultivation of new varieties of high-yield plants and industrial biosynthesis.
Owner:INSTITUTE OF CHINESE MATERIA MEDICA CHINA ACADEMY OF CHINESE MEDICAL SCIENCES

Compositions comprising inhibitors of microsomal triglyceride transfer protein and Apo-B secretion

The present invention relates to pharmaceutical composition(s) comprising particles comprising one or more compounds which are inhibitors of microsomal triglyceride transfer protein and / or apolipoprotein B (Apo B) secretion, wherein at least 50% of the particles are characterized by a volume particle fraction less than 10 μm, more preferably less than 5 μm, more preferably less than 2.5 μm. The pharmaceutical composition can be useful for the prevention and treatment of various diseases, particularly atherosclerosis and its clinical sequelae, for lowering serum lipids, and related ailments. The invention further relates to methods of treating diseases, such as hypertriglyceridemia, hyperchylomicronemia, atherosclerosis, obesity, and related conditions using the compounds. A method for decreasing apolipoprotein B (apo B) secretion is also provided.
Owner:RESPONSE IP HLDG CO LLC

Application of microsome glutathione S transferase 3 in preparation of medicine for treating diseases caused by neurite overgrowth

The invention discloses an application of microsome glutathione S transferase 3 in preparation of a medicine for treating diseases caused by excessive growth of neurite. The invention provides and verifies that the microsome glutathione S-transferase 3 inhibitor can effectively inhibit the growth of neurite for the first time, and provides a new direction for research and development of drugs for treating diseases caused by excessive growth of neuronal axons of a peripheral or central nervous system.
Owner:NANTONG UNIV

Indole carboxamide derivative and pharmaceutical composition containing same

Indole carboxamide compounds of Formula (II) or pharmaceutically acceptable salt thereof have activity of inhibiting production of prostaglandin E2 (PGE2) through inhibition of microsomal prostaglandin E2 synthase-1 (mPGES-1). The indole carboxamide compounds and salts can be effectively used in treating or preventing inflammation, arthritis, high fever, pain, cancer, stroke or brain diseases such as Alzheimer's disease. A pharmaceutical composition contains the indole carboxamide compound as an active ingredient.
Owner:KUKJE PHARMA CO LTD