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45results about How to "Blocking interaction" patented technology

Preparation method of anti-tobacco potato Y virus vaccine

The invention discloses a preparation method of an anti-tobacco potato Y virus vaccine. The method includes the following steps that 1, pCaPVX440-eIF4E-6 plasmids are prepared; 2, the pCaPVX440-eIF4E-6 is transferred to agrobacterium to prepare the anti-tobacco potato Y virus vaccine. The anti-tobacco potato Y virus vaccine prepared by means of the preparation method is suitable for prevention and control of tobacco PVY viruses and has an important practical value for prevention and control of diseases caused by the PVY viruses in the tobacco leaf production process. Compared with the prior art, the virus vaccine is good in specificity, good in safety, simple, convenient and quick to operate and low in cost.
Owner:中国烟草总公司黑龙江省公司烟草科学研究所 +1

Detection kit for human leucocyte antigen genes

The invention belongs to the technical field of biological medicines and relates to a detection kit for human leucocyte antigen (HLA) genes--HLA-B*59: 01 genes, and the HLA-B*59: 01 genes can serve as marker genes for forecasting methazolamide caused SJS (Stevens-Johnson syndrome) and TEN (Toxic epidermal necrolysis). According to the detection kit, after DNA extracted from the peripheral blood of a patient, the PCR-SSO method is adopted to detect the HLA-B*59 :01 genes. The detection kit for HLA-B*59: 01 genes can be used for examining before application of methazolamide and screening targeted medicines for treating methazolamide caused SJS and TEN; and examination can guide clinical medication to reduce incidence of SJS and TEN caused by methazolamide, and the screening mainly acts on HLA-B*59: 01 molecules in a targeted manner, so that interaction between the HLA-B*59: 01 molecules and methazolamide or other metabolic products during attack.
Owner:AFFILIATED HUSN HOSPITAL OF FUDAN UNIV +1

Human leukocyte antigen gene detection kit for screening skin drug adverse reactions caused by salazosulfapyridine

The invention provides a human leukocyte antigen gene detection kit for screening skin drug adverse reaction caused by salazosulfapyridine, belongs to the technical field of biomedicine, and relates to a detection kit of human leukocyte antigen gene HLA-B*13:01, wherein the HLA-B*13:01 gene can be adopted as the marker gene of salazosulfapyridine-induced DRESS. According to the present invention, DNA is extracted from the peripheral blood of a patient, and the HLA-B*13:01 gene is detected by using the current method, such as PCR-SSO (sequence-specific oligonucleotide probe) method; and the HLA-B*13:01 gene detection kit of the present invention can be used for screening before the salazosulfapyridine use and screening the target drug for treatment of salazosulfapyridine-induced DRESS, wherein the screening before the salazosulfapyridine use can guide the clinical medication so as to reduce the occurrence of the salazosulfapyridine-induced DRESS, and the drug screening mainly act on the HLA-B*13:01 molecules in a targeting manner so as to block the interaction between the HLA-B*13:01 molecules and the salazosulfapyridine or the metabolites thereof in the pathogenesis.
Owner:FUDAN UNIV +1

Chimeric antigen recipient cell taking ROBO1 as target, preparation and application thereof

The invention discloses a chimeric antigen recipient cell taking ROBO1 as a target, a preparation and an application thereof and especially discloses a reinforced CAR-T cell and CAR-NK cell taking ROBO1 as the target. The cell is capable of stably expressing CAR element while performing secretory expression on extracellular domain molecules or mutants of PD-1 protein and stopping the interaction of PD-1 / PD-L1 molecules. An animal test proves that the cell has an excellent anti-tumor effect, and the cell, compared with a common CAR modified cell taking ROBO1 as the target, is capable of obviously reducing recurrence rate of tumors and increasing survival rate.
Owner:ASCLEPIUS SUZHOU TECH CO GRP CO LTD

CD47/SIRP (signal regulatory protein) alpha blocking agent and application thereof

The invention relates to a compound of a blocking agent for CD47 / SIRP alpha interaction, in particular to a compound as shown in a formula I, a medicine composition containing the compound as shown inthe formula I and an application of the compound to treatment of CD47 / SIRP alpha interaction mediated diseases and preparation of a medicine for treating the CD47 / SIRP alpha interaction mediated diseases.
Owner:EAST CHINA UNIV OF SCI & TECH

Application of polypeptide in preparation of medicines for treating or preventing metabolic syndrome

The invention discloses an application of a polypeptide specifically bingd to TRB3 or a derivative of the polypeptide in the preparation of medicines for treating and / or preventing metabolic syndrome. The amino acid sequence of the polypeptide is represented by anyone of SEQ ID NO:1, SEQ ID NO:2 and SEQ ID NO:3; and the derivative of the polypeptide is a chimeric peptide formed by connecting the polypeptide with a cell penetrating peptide and / or a medicinal composition formed by cooperating the polypeptide with a medicinal assistant. The polypeptide or the polypeptide derivative can specifically bind to the TRB3 in order to block out interaction between the TRB3 and a P62 protein, and the peptide derivatives Pep2-A1, Pep2-A2 and Pep3-A3 can be used to treat high fat diet induced mouse metabolic syndrome.
Owner:胡卓伟

Anti-TIGIT nanobody and application thereof

The invention discloses an anti-TIGIT nanobody and application thereof, and particularly provides an anti-TIGIT nanobody and a sequence thereof. The invention also provides a coding sequence encodingthe nanobody or a VHH chain thereof, a corresponding expression vector and a host cell capable of expressing the nanobody, as well as a production method of the nanobody. The nanobody can block the interaction between TIGIT and CD155 on the surface of CT26 cells, and can effectively bind to the TIGIT protein on the cell surface; the nanobody can recognize human and macaca fascicularis TIGIT; the blocking activity of the nanobody is significantly better than a control antibody Tiragolumab; and the nanobody has a significant activating effect on T cells, and the activation effect is significantly better than that of the control antibody Tiragolumab.
Owner:SHANGHAI NOVAMAB BIOPHARM CO LTD

Human leukocyte antigen gene detection kit for screening clindamycin-induced adverse drug reactions on skin

The invention belongs to the technical field of biological medicine, and relates to a human leukocyte antigen HLA-B*51: 01 gene detection kit. An HLA-B*51: 01 gene can be used as a marker gene for predicting clindamycin-induced drug rash. The invention provides the application of the detection kit to typing of the HLA-B*51: 01 gene in a sample. The application comprises the following steps: extracting DNA from obtained peripheral blood of a patient, and detecting the HLA-B*51: 01 gene by a current method, such as a sequence-specific oligonucleotide probe (PCR-SSO) method. The HLA-B*51: 01 gene detection kit provided by the invention can be applied to screening and sifting of targeted drugs for treating the clindamycin-induced drug rash before the use of clindamycin; screening application can guide clinical drug use so as to reduce incidence of the clindamycin-induced drug rash; selecting application mainly acts on an HLA-B*51: 01 molecule in a targeted manner so as to block interaction between the HLA-B*51: 01 molecule and clindamycin or other metabolites during the drug rash.
Owner:AFFILIATED HUSN HOSPITAL OF FUDAN UNIV +1

Fluorenyl aromatic phosphine oxide photoelectric material and preparation method thereof

The invention relates to a photoelectric material and a preparation method thereof, particularly to a fluorenyl aromatic phosphine oxide photoelectric material and a preparation method thereof, and aims at solving the problem that carrier injection transmission is unbalanced caused by the fact that aromatic hydrocarbon or arylamine functional groups with large conjugated structures are introduced into a fluorine system. The method includes preparing 2-bromine-(9,9-bis-(diphenylphosphine oxide) ) fluorine; and mixing the 2-bromine-(9,9-bis-(diphenylphosphine oxide) ) fluorine, tetrakis (triphenylphosphine) palladium, tetrabutylammonium bromide and borate and dissolving in tetrahydrofuran, adding in NaOH solution, and obtaining the photoelectric material after reaction, extraction, drying and column chromatography; or mixing the 2-bromine-(9,9-bis-(diphenylphosphine oxide) ) fluorine, carbazole, potassium carbonate, copper iodide and 18-crown-6-ether, adding in a high-temperature solvent, and obtaining the photoelectric material after reaction, extraction, drying and column chromatography. The power efficiency of the photoelectric material prepared through the method can reach 2.19lm / W when the material is used for preparing blue-ray fluorescent devices.
Owner:HEILONGJIANG UNIV

Bi-functional monoclonal antibody capable of anti-human von willbrand factor-A3

The invention relates to a hybridoma cell strain SZ-125(3D2) with the prevention number of CGMCC NO.2501 and a bi-functional monoclonal antibody capable of anti-human von willbrand factor-A3 secreted by the hybridoma cell strain. The monoclonal antibody is combined with the VWF A3 to block the combination of the VWF A3 and collagen and simultaneously influences the configuration of domain A1, thereby destroying the original domain A1 configuration capable of combining platelet GPIb alpha and achieving the aim of blocking the interaction of the VWF A1 and the GPIb alpha, so that not only combination of the VWF A3 and the collagen is blocked but also the combination of the VWF A1 and the platelet GPIb alpha is blocked. Thus, the monoclonal antibody can be used for preparing anti-artery thrombosis medicine with anti-platelet adhesion activity.
Owner:苏州苏大赛尔免疫生物技术有限公司

Selenium-rich peptide with high antioxidant activity and application thereof

The invention relates to a selenium-rich peptide with high antioxidant activity and application thereof. The selenium-rich peptide has the following amino acid sequence: FLML or LAMMVL, sulfur element in methionine M in the FLML is substituted by selenium, and the selenium-rich peptide is marked as FLSeML; the sulfur element in the first methionine M in the LAMMVL is substituted by selenium. The selenium-rich peptide with high antioxidant activity is separated and purified from the selenium-rich moringa seed protein powder, and the selenium-rich peptide has high selenium content, high antioxidant activity and cell damage protection effect, and can block the interaction of Keap1-Nrf2.
Owner:SOUTH CHINA AGRI UNIV

Application of HLA-A*24:02 allele to detecting person drug eruptionrisk caused by metronidazole

The invention discloses application of HLA-A*24:02 allele to detecting person drug eruption risk caused by metronidazole. The invention provides application of a substance for detecting whether persons have the HLA-A*24:02 allele or not to preparing a product for detecting or evaluating adverse drug reaction risk generated when persons respond to the metronidazole. Experiments show that the humanleukocyte antigen gene-HLA-A*24:02 allele is related to drug eruptionattacking caused by the metronidazole. The HLA-A*24:02 allele can serve as a marker gene for forecasting the drug eruption risk caused by the metronidazole.
Owner:AFFILIATED HUSN HOSPITAL OF FUDAN UNIV +1

Novel application of compound in prevention and/or treatment of diseases caused by coronavirus infection

The invention finds that the norzerelaldehyde and the cediranib can effectively block the combination of RBD and ACE2 protein, so that the norzerelaldehyde and the cediranib can be applied to prevention and / or treatment of diseases caused by coronavirus infection.
Owner:MEDICINE & BIOENG INST OF CHINESE ACAD OF MEDICAL SCI

Anti-PD-L1/VEGF fusion protein

The invention relates to the technical field of fusion proteins, and particularly relates to an anti-PD-L1 / VEGF fusion protein. The fusion protein comprises an anti-PD-L1 antibody, a peptide linker L and a D2 structural domain of VEGFR 1. The N terminal of the D2 structural domain of VEGFR1 is connected to the C terminal of an anti-PD-L1 antibody heavy chain through the peptide linker L. The fusion protein has the potential of treating diseases related to PD-L1 and VEGF activity.
Owner:ZEDA BIOPHARMACEUTICALS INC

Applications of polypeptide in preparation of drugs for treatment or prevention of diabetic cardiomyopathy

The present invention discloses applications of a polypeptide capable of specifically binding with TRB3 or polypeptide derivatives in preparation of drugs for treatment or prevention of diabetic cardiomyopathy, wherein the amino acid sequence of the polypeptide is one selected from sequences represented by SEQ ID NO:1, SEQ ID NO:2 and SEQ ID NO:3, and the polypeptide derivative is a chimeric peptide formed by connecting the polypeptide and a cell-penetrating peptide. According to the present invention, the polypeptide or polypeptide derivatives can specifically bind with TRB3 so as to block the interaction between the TRB3 and the P62 protein, and the peptide derivatives such as Pep2-A1, Pep2-A2 and Pep2-A3 can be used for treating the high-fat diet-induced type 2 diabetes.
Owner:胡卓伟

Anti-SIRP alpha rabbit recombinant monoclonal antibody as well as preparation method and application thereof

The invention relates to an anti-SIRP alpha rabbit recombinant monoclonal antibody as well as a preparation method and application thereof, amino acid sequences of heavy chain complementary determining regions HCDR1, HCDR2 and HCDR3 of the anti-SIRP alpha rabbit recombinant monoclonal antibody are amino acid sequences as shown in SEQ ID NO: 1, SEQ ID NO: 2 and SEQ ID NO: 3 respectively, and amino acid sequences of light chain complementary determining regions LCDR1, LCDR2 and LCDR3 are amino acid sequences as shown in SEQ ID NO: 4, SEQ ID NO: 5 and SEQ ID NO: 6 respectively. The anti-SIRP alpha rabbit recombinant monoclonal antibody has good specificity, can be used in ELISA (Enzyme-Linked Immunosorbent Assay) and a common flow detection method, most importantly, the antibody can block the interaction between CD47 protein and SIRP alpha protein, and has potential tumor immunotherapy value.
Owner:缔码生物科技(武汉)有限公司

A kind of preparation method of anti-tobacco potato virus y vaccine

The invention discloses a preparation method of an anti-tobacco potato Y virus vaccine. The method includes the following steps that 1, pCaPVX440-eIF4E-6 plasmids are prepared; 2, the pCaPVX440-eIF4E-6 is transferred to agrobacterium to prepare the anti-tobacco potato Y virus vaccine. The anti-tobacco potato Y virus vaccine prepared by means of the preparation method is suitable for prevention and control of tobacco PVY viruses and has an important practical value for prevention and control of diseases caused by the PVY viruses in the tobacco leaf production process. Compared with the prior art, the virus vaccine is good in specificity, good in safety, simple, convenient and quick to operate and low in cost.
Owner:中国烟草总公司黑龙江省公司烟草科学研究所 +1

Application of a polypeptide in the preparation of drugs for treating diabetic cardiomyopathy

The present invention discloses applications of a polypeptide capable of specifically binding with TRB3 or polypeptide derivatives in preparation of drugs for treatment or prevention of diabetic cardiomyopathy, wherein the amino acid sequence of the polypeptide is one selected from sequences represented by SEQ ID NO:1, SEQ ID NO:2 and SEQ ID NO:3, and the polypeptide derivative is a chimeric peptide formed by connecting the polypeptide and a cell-penetrating peptide. According to the present invention, the polypeptide or polypeptide derivatives can specifically bind with TRB3 so as to block the interaction between the TRB3 and the P62 protein, and the peptide derivatives such as Pep2-A1, Pep2-A2 and Pep2-A3 can be used for treating the high-fat diet-induced type 2 diabetes.
Owner:胡卓伟

Human leukocyte antigen gene detection kit for screening skin adverse reactions caused by sulfasalazine

The invention provides a human leukocyte antigen gene detection kit for screening skin drug adverse reaction caused by salazosulfapyridine, belongs to the technical field of biomedicine, and relates to a detection kit of human leukocyte antigen gene HLA-B*13:01, wherein the HLA-B*13:01 gene can be adopted as the marker gene of salazosulfapyridine-induced DRESS. According to the present invention, DNA is extracted from the peripheral blood of a patient, and the HLA-B*13:01 gene is detected by using the current method, such as PCR-SSO (sequence-specific oligonucleotide probe) method; and the HLA-B*13:01 gene detection kit of the present invention can be used for screening before the salazosulfapyridine use and screening the target drug for treatment of salazosulfapyridine-induced DRESS, wherein the screening before the salazosulfapyridine use can guide the clinical medication so as to reduce the occurrence of the salazosulfapyridine-induced DRESS, and the drug screening mainly act on the HLA-B*13:01 molecules in a targeting manner so as to block the interaction between the HLA-B*13:01 molecules and the salazosulfapyridine or the metabolites thereof in the pathogenesis.
Owner:FUDAN UNIV +1

Composite capsules comprising raloxifene, and vitamin D or its derivatives

A composite capsule and a method of preparing the same are provided. The composite capsule includes: a raloxifene separate layer including raloxifene or a pharmaceutically acceptable salt thereof; and a vitamin D separate layer including vitamin D or a derivative thereof, wherein the raloxifene separate layer and the vitamin D separate layer are separated from one another in the composite capsule.
Owner:HANMI PHARMA

Application of a polypeptide or its derivatives in the treatment of hypertensive cardiac hypertrophy

The invention discloses application of a polypeptide able to specifically bind TRB3 or polypeptide derivative or polypeptide chimeric peptide in preparation of drugs or vaccines for prevention and / or treatment of hypertensive myocardial hypertrophy. The polypeptide has an amino acid sequence shown as SEQ ID NO:1, the amino acid sequence of the polypeptide derivative is a SEQ ID NO:1 derived amino acid sequence that is obtained by subjecting the amino acid sequence shown as SEQ ID NO:1 to substitution, deletion or adding by one or several amino acid residues and has the same activity to an amino acid residue sequence of SEQ ID NO:1, and the polypeptide chimeric peptide is formed by connecting the polypeptide or polypeptide derivative with a cell-penetrating peptide. The invention also further discloses a nucleotide fragment encoding the polypeptide or polypeptide derivative, and application of pharmaceutical compositions containing the polypeptide or polypeptide derivative or polypeptide chimeric peptide and the nucleotide sequence thereof in preparation of drugs or vaccines for prevention and / or treatment of hypertensive myocardial hypertrophy.
Owner:INST OF MATERIA MEDICA CHINESE ACAD OF MEDICAL SCI

Mineralized material for preventing and treating dentin hypersensitivity and resisting caries as well as preparation method and application of mineralized material

The invention provides a mineralization material for preventing and treating dentin hypersensitivity and resisting caries as well as a preparation method and application thereof, and belongs to the technical field of dental materials. The mineralization material for preventing and treating dentin hypersensitivity and resisting caries is a calcium phosphate nano biomimetic mineralization material loaded with egg yolk immunoglobulin, can effectively seal exposed dentin tubules, can effectively inhibit growth of cariogenic bacteria streptococcus mutans, and has good safety.
Owner:TONGJI UNIV

Application of spd_0310 protein as a target in the preparation of drugs for preventing and treating Streptococcus pneumoniae infection

The invention discloses the application of SPD_0310 protein as a target in the preparation of medicines for preventing and treating Streptococcus pneumoniae infection. In the present invention, it was found that the expression level of SPD_0310 in the triple mutant strain in which the three main iron transport genes of Streptococcus pneumoniae were knocked out at the same time was increased and could grow normally, indicating that the SPD_0310 protein may be involved in the interaction of various iron transport proteins. The present invention also found that the spd_0310 gene knockout strain has reduced infectivity to mice. Based on this, SPD_0310 can be used to prepare antibodies to the protein, so as to facilitate the development of antibody drugs. In addition, the present invention also found that the active center of the protein can bind heme, and proved that porphyrins can be used as substrates to compete with heme, indicating that porphyrins can be used as inhibitors of SPD_0310 to inhibit Streptococcus pneumoniae toxicity, which has broad application prospects in the field of antibacterial drugs.
Owner:JINAN UNIVERSITY
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