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131 results about "Nude mouse" patented technology

A nude mouse is a laboratory mouse from a strain with a genetic mutation that causes a deteriorated or absent thymus, resulting in an inhibited immune system due to a greatly reduced number of T cells. The phenotype (main outward appearance) of the mouse is a lack of body hair, which gives it the "nude" nickname. The nude mouse is valuable to research because it can receive many different types of tissue and tumor grafts, as it mounts no rejection response. These xenografts are commonly used in research to test new methods of imaging and treating tumors. The genetic basis of the nude mouse mutation is a disruption of the FOXN1 gene.

Application of ADRM1 gene / protein in preparation of medicine for treating osteosarcoma

The invention relates to the technical field of biological medicines, and provides application of ADRM1 gene / protein in preparation of a medicine for treating osteosarcoma. When the ADRM1 gene / protein is applied to the preparation of the medicine for treating osteosarcoma, the proliferation, migration and invasion capabilities of tumor cells can be remarkably inhibited, so that the occurrence and development of osteosarcoma are delayed. The expression of the ADRM1 is knocked down through an shRNA intervention technology, the mRNA and protein level of the ADRM1 in 143b and U2OS osteosarcoma cell lines can be remarkably reduced, the short-term proliferative activity and the long-term clone forming ability of the ADRM1 are further inhibited, and the migration and invasion characteristics of cells are effectively weakened. The growth of a tumor body formed after a nude mouse is inoculated with 143b osteosarcoma cells knocking down ADRM1 is obviously slowed down, and the expression of a cell proliferation marker KI-67 in the tumor body is reduced, which indicates that the ADRM1 gene / protein also plays a key regulation role in the in-vivo growth process of osteosarcoma.
Owner:南昌大学第一附属医院

Application of Avasimibe in preparation of medicine for treating nasopharynx cancer or oral cancer

The invention relates to an application of Avasimibe in preparation of a medicine for treating nasopharynx cancer or oral cancer, and belongs to the field of tumor targeted therapy. An in-vitro cell experiment and an in-vivo animal model experiment verify the anti-tumor effect of the compound. Experiments show that Avasimibe can significantly inhibit the activity, proliferation ability, healing ability and cloning ability of nasopharynx cancer cells and oral cancer cells, can regulate cell cycle arrest in a dose-dependent manner, and induces cell apoptosis. In vivo experiments, the tumor volume of nude mice in an Avasimibe treatment group is remarkably reduced, serum cholesterol is remarkably reduced, and serum biochemical analysis shows that compared with a control group, the Avasimibe treatment group has no statistical difference in indexes such as aspartate transaminase (AST) / glutamic-pyruvic transaminase (ALT) and creatinine (Cr). The invention provides a new indication for resisting nasopharynx cancer and oral cancer for the existing compound Avassimibe, has the clinical advantages of low toxicity and capability of overcoming drug resistance, and provides a new treatment choice for patients with nasopharynx cancer and oral cancer.
Owner:GUANGXI MEDICAL UNIVERSITY

Primer pair, method, and use for rapidly identifying newborn nude mice

A primer pair, method, and use for rapidly identifying newborn nude mice. On the basis that a deletion mutation occurs in the base G at position 337 of a coding region of the Foxn1 gene in nude mice, a primer pair introducing an enzyme digestion site is designed according to sequence characteristics. Using the genome of a mouse to be tested as a template, the Foxn1 gene is amplified according to a PCR-RFLP method. The PCR product is then digested with a SmaI restriction endonuclease, and the digested product is genotyped by agarose gel electrophoresis. In addition, a reaction system that can be combined with lateral flow technology is screened, thereby achieving instant detection of the newborn nude mice. The method has the characteristics of simple operation, short time consumption, low cost, instant detection, etc.
Owner:CANVEST WUHAN BIOTECH

Application of Phoximus in preparation of drugs for reversing gastric cancer drug resistance

The application discloses application of Ophisaurus apodus in preparation of a drug for reversing drug resistance of gastric cancer and belongs to the technical field of medicines. The application can reduce tumor volume and size, promote drug resistance cell apoptosis, and reverse the chemotherapeutic drug resistance of a nude mouse with gastric cancer by jointly using Ophisaurus apodus in different parts of the body and cisplatin, by down-regulating P-gp, MRP1 and Bcl-2 protein expression, and by up-regulating Bax protein expression. The effect of the tail + cisplatin group is the most significant.
Owner:NINGXIA MEDICAL UNIV

Application of disulfide bond isomerase single-domain antibody in preparation of product for treating and / or preventing leukemia

The invention discloses an application of a disulfide bond isomerase single-domain antibody in preparation of a product for treating and / or preventing leukemia, the disulfide bond isomerase single-domain antibody comprises a variable region, and the variable region comprises CDR1, CDR2 and CDR3; the amino acid sequences of CDR1-CDR3 of the disulfide bond isomerase single-domain antibody are sequentially as shown in SEQ ID NO: 15, SEQ ID NO: 16 and SEQ ID NO: 17, and the CDR1-CDR3 are defined according to an IMGT definition scheme. The single-domain antibody provided by the invention can be used for remarkably inhibiting the growth of subcutaneous transplanted tumors of Ba / F3BCR-ABLT315I cells in nude mice, and has an obvious inhibiting effect on drug-resistant chronic granulocytic leukemia.
Owner:ZUNYI MEDICAL UNIV ZHUHAI CAMPUS

A non-invasive cervical cancer orthotopic model modeling method of mice

The present application relates to in situ model modeling method, especially for a kind of non-invasive cervical cancer in situ model modeling method of mouse, including selecting several 8 weeks old BALB / c-nude mouse, all mice are divided into non-invasive group and operation group, the age, weight of two groups of mice are compared, and there is no statistically significant difference;Non-invasive group is widened with the cotton stick of diameter 3mm and wipes dry vagina, the tumor block with luciferase fluorescence is immersed in modified hydrogel, after heating and making modified hydrogel solidification, the tissue glue mixed with hard gypsum in modified hydrogel is dropped on the surface of modified hydrogel and quickly inserted into vagina, when there is obstruction, stop deepening, pause 30s and wait for tissue glue to be completely dry, when tumor block is fixed in cervix, it is modeling completion;Operation group first opens abdominal cavity, and tumor tissue of same size is sutured on cervix.This kind of non-invasive cervical cancer in situ model modeling method of mouse, using non-invasive method to replace operation method to establish non-invasive cervical cancer in situ model, can reduce the pain of mouse, reduce experimental difficulty.
Owner:SHANGHAI RES CENT FOR MODEL ORGANISMS

Application of rhamnus utilis in preparation of anti-pancreatic cancer drugs

The application discloses application of Rhamnus hemisphaerica in preparation of anti-pancreatic cancer drugs, wherein the Rhamnus hemisphaerica is dry root of Semiliquidam bar cathayensis Chang of Rhamnaceae. Researches show that the Rhamnus hemisphaerica can inhibit proliferation, invasion and migration of pancreatic cancer cells Pan-1, promote apoptosis, has anti-pancreatic cancer activity, can significantly inhibit growth of tumor of a subcutaneous nude mouse xenograft model of pancreatic cancer cells Panc-1, significantly inhibit expression of a tumor proliferation related factor Ki67, and has no obvious toxic side effect on mice. The application firstly discloses that the Rhamnus hemisphaerica has obvious anti-pancreatic cancer activity, can be used for preparation of anti-pancreatic cancer drugs, provides a new efficient and safe drug source for treatment of pancreatic cancer, and provides a basis for further development and utilization of the Rhamnus hemisphaerica.
Owner:GUANGDONG PHARMA UNIV

Application of 2-indolecarboxylic acid in preparation of tumor targeted therapy drugs

The invention provides an application of 2-indolecarboxylic acid in preparation of a tumor targeted therapy drug. Through computer-aided drug design and molecular docking optimization, 2-indolecarboxylic acid shows high binding energy to an HER2 kinase structural domain. In HER2 positive NCI-N87 gastric cancer cells, the 2-indolecarboxylic acid significantly inhibits cell proliferation and induces G0 / G1 phase arrest and apoptosis. The mechanism research shows that the 2-indoleformic acid can play a role by regulating and controlling the HER2 / Akt / beta-catenin pathway (Western blot verification). In an NCI-N87 cell tumor-bearing nude mouse model, 2-indolecarboxylic acid (15 mg / kg) significantly inhibits tumor growth, and does not cause obvious weight loss or organ toxicity. Immunohistochemical analysis shows that the positive rate of a tumor tissue proliferation marker Ki-67 in a treatment group is remarkably reduced, and apoptosis detection shows that the proportion of TUNEL positive cells is remarkably increased, which indicates that 2-indolecarboxylic acid inhibits tumor cell proliferation and promotes apoptosis at the same time. The invention provides a lead compound with clinical transformation potential for HER2 targeted therapy.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Anti-tumor antigen BAP31 monoclonal antibody, Cy5-BAP31 directly labeled monoclonal antibody and its application

The present invention relates to the field of biomedicine technology, and specifically discloses an anti-tumor antigen BAP31 monoclonal antibody, a Cy5-BAP31 directly labeled monoclonal antibody and its application. The monoclonal antibody includes a heavy chain variable region and a light chain variable region. The nucleotide sequence of the heavy chain variable region of the monoclonal antibody is shown in SEQ ID NO.1, and its amino acid sequence is shown in SEQ ID NO.3. The nucleotide sequence of the light chain variable region of the monoclonal antibody is shown in SEQ ID NO.2, and its amino acid sequence is shown in SEQ ID NO.4. The anti-BAP31 monoclonal antibody provided by the present invention can specifically recognize the BAP31 molecule, inhibit the subcutaneous tumor formation ability and in vivo metastasis ability of liver cancer cells, and significantly prolong the survival of tumor-bearing nude mice.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Application of total glucosides of paeony in preparation of medicine for treating triple negative breast cancer

The invention discloses a novel application of total glucosides of paeony in preparation of a medicine for treating triple negative breast cancer. In-vitro and in-vivo experiments prove that the total glucosides of paeony can remarkably inhibit proliferation, migration and invasion of triple negative breast cancer cells (MDA-MB-231 and MDA-MB-468), reverse an epithelial-mesenchymal transition process and induce cell apoptosis by inducing mitochondrial injury, inhibiting oxidative phosphorylation and activating a mitochondrial apoptosis pathway. In an MDA-MB-231 cell xenotransplantation tumor nude mouse model, the total glucosides of paeony can effectively inhibit tumor growth. Therefore, the total glucosides of paeony can be used for preparing the medicine for treating the triple negative breast cancer, and a new treatment choice is provided for clinic.
Owner:ZHEJIANG CANCER HOSPITAL

Use of adrm1 gene / protein in preparation of drug for treating osteosarcoma

The application relates to the field of biological medicine, and provides application of ADRM1 gene / protein in preparation of a drug for treating osteosarcoma. The ADRM1 gene / protein is applied to preparation of the drug for treating osteosarcoma, can significantly inhibit proliferation, migration and invasion ability of tumor cells, and thus delays occurrence and development of the osteosarcoma. By shRNA intervention technology, the expression of ADRM1 is knocked down, the mRNA and protein levels of ADRM1 in 143b and U2OS osteosarcoma cell lines are significantly reduced, short-term proliferation activity and long-term clone formation ability are inhibited, and migration and invasion characteristics of the cells are effectively weakened. After 143b osteosarcoma cells with the knocked-down ADRM1 are inoculated into nude mice, the growth of the tumor formed by the cells is obviously slowed down, and the expression of a cell proliferation marker KI-67 in the tumor is down-regulated, indicating that the ADRM1 gene / protein also plays a key regulation role in the in-vivo growth process of the osteosarcoma.
Owner:南昌大学第一附属医院

Temperature-sensitive hydrogel containing doxorubicin-loaded dendrimer as well as preparation method and application of temperature-sensitive hydrogel

The invention discloses a drug delivery system containing loaded adriamycin as well as a preparation method and application of the drug delivery system. The drug delivery system comprises poly (beta-amino ester) coupled with adriamycin, wherein the surface of the poly (beta-amino ester) is coated with dextran sulfate, and the poly (beta-amino ester) takes a fourth-generation lysine dendritic molecule Lys-G4 as a core. The drug delivery system has a pH-dependent drug release characteristic, has remarkable toxicity to C6 and U87MG glioma cells, has the capabilities of inducing apoptosis, inhibiting migration and targeting subcellular localization, and can effectively penetrate through a blood-brain barrier model and 3D tumor spheres. The delivery system is compounded with PLA-PEG-PLA thermosensitive hydrogel, and the thermosensitive hydrogel with a drug storage function is successfully constructed. Good tumor inhibition effect and biocompatibility are shown in nude mouse subcutaneous and in-situ glioma models. The invention not only provides a new strategy for overcoming the blood brain barrier, but also can effectively reduce the systemic toxicity, and opens up a new research thought and method for glioma treatment.
Owner:NANTONG UNIV

Application of circRNA marker in diagnosis and treatment of colorectal cancer

The invention discloses an application of a circRNA marker in diagnosis and treatment of colorectal cancer, the expression level of a circular RNA gene hsacirc0066801 in samples of patients with colorectal cancer and tumor cells is obviously improved, and the overexpression of the circular RNA hsacirc0066801 can obviously promote the proliferation, migration and invasion of the colorectal cancer cells. Meanwhile, knock-down of the hsacirc0066801 can significantly inhibit proliferation, migration and invasion of colorectal cancer cells, in addition, nude mouse tumor formation experiments prove that the tumor volume is significantly increased after overexpression of the hsacirc0066801, and is reduced after knock-down of the hsacirc0066801. Therefore, the hsacirc0066801 can be used as a potential molecular marker and is used as a target spot for clinical diagnosis and treatment of the colorectal cancer.
Owner:WUHAN UNIV OF SCI & TECH

Animal model for research on cancer immunotherapy agents, and preparation method therefor

PCT designated stageWO2026111473A1Animal husbandryEfficacyOncology
The present invention relates to an animal model for research on cancer immunotherapy agents, and a preparation method therefor. A nude mouse, which is a mouse model widely used for evaluating the effects of anticancer agents, can verify the efficacy of a cytotoxic anticancer agent, but cannot confirm the effect of an cancer immunotherapy agent because immune function is deficient. However, a cancer animal model according to the present invention has normal immune function, thereby enabling preclinical efficacy of a cancer immunotherapy agent to be accurately predicted, and thus is expected to contribute to improving the prognosis of a patient for whom surgery is not possible.
Owner:UI (UNIVERSITY IND FOUNDATION) YONSEI UNIVERSITY

Application of free fatty acid C19: 0 in promoting esophageal cancer growth and modeling animal tumor living body model

PendingCN120536339AGastrointestinal cellsDigestive systemCarcinoma cell lineOncology
The invention relates to the technical field of biology, in particular to application of free fatty acid C19: 0 in promoting esophageal cancer growth and modeling an animal tumor living body model. Results show that the free fatty acid C19: 0 has the capability of promoting proliferation, migration and invasion of esophageal cancer cells no matter in a human esophageal squamous carcinoma cell line EC109 or KYSE150; the tumor formation capability of esophageal cancer cells in nude mice can be remarkably promoted, and basic data is provided for prevention, treatment and prognosis of esophageal cancer.
Owner:SHIHEZI UNIVERSITY

A human in vivo mucosal organoid and a construction method and application thereof

PendingCN122357427Aachieve leapfrogachieve infiltrationDiseaseCell recruitment
The application belongs to the field of biomedical engineering, and discloses a human live mucosa organoid and a construction method and application thereof. The construction of the organoid comprises the following steps: preparing a cell gel compound, filling the cell gel compound into a support, implanting the support into a nude mouse subcutaneously after gelation, and obtaining the human live mucosa organoid after culturing for 1-3 weeks. The application also discloses the application of the organoid in disease research or drug screening. The application constructs a sustainable in-vivo biomimetic air-mucosa gas-liquid interface, realizes the transition of mucosa from an "ex-vivo static model" to an "in-vivo dynamic live system", and realizes the comprehensive evaluation of the curative effect of anti-infection drugs from three dimensions of pathogenic bacteria elimination, inflammation reaction regulation and immune cell recruitment inhibition in application, thereby breaking through the limitation of traditional models that can only evaluate the in-vitro bacteriostatic activity and being more consistent with the actual effect of clinical drug treatment.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Benzoacridine-3, 4-dicarboximide derivative as well as preparation method and application thereof

The invention discloses a benzacridine-3, 4-dicarboximide derivative as well as a preparation method and application thereof, the structure of the benzacridine-3, 4-dicarboximide derivative is shown as I-A, and n is equal to 1, 2, 3 or 4; the invention also discloses hydrochloride of the benzacridine-3, 4-dicarboximide derivative and a preparation method, all the compounds are subjected to CCK-8 experiments to investigate the cytotoxicity to 14 tumor cells and human normal lung embryo fibroblasts, and the compound 4 with the best activity is used for evaluating the cytotoxicity to SK-OV-3 ovarian cancer cell proliferation and invasion, the cytotoxicity to SK-OV-3 ovarian cancer cells, the cytotoxicity to human normal lung embryo fibroblasts and the cytotoxicity to SK-OV-3 ovarian cancer cells and the cytotoxicity to human normal lung embryo fibroblasts. And influence of migration capability. Subsequently, in-vivo anti-tumor activity of the compound 4 is found in a nude mouse xenotransplantation tumor experiment, and whether the compound has toxicity to mice or not is observed through pathological tissue slices under the administration treatment concentration. The invention has great value in discovery of new anti-tumor small molecule drugs and research and development of clinical drugs thereof.
Owner:ZHEJIANG JIEYUAN MEDICAL TECH CO LTD

Extraction method of high-performance gamma delta T immune cells and application of high-performance gamma delta T immune cells in tumors

The invention provides an extraction method of high-performance gamma delta T immune cells and application of the high-performance gamma delta T immune cells in tumors. The method comprises the following steps: firstly, separating mononuclear cells from peripheral blood, carrying out activation induction by using a serum-free culture medium containing zoledronic acid, IL-15 and OKT3, and supplementing a culture medium containing IL-2 according to a specific proportion for multiplication culture from the third day of culture. Through the optimization process, the expression rate of TCR-gamma delta < + > is as high as 96.84%, and gamma delta T cells with high activity are obtained. An in-vivo tumor inhibition experiment shows that the cell has a remarkable growth inhibition effect on liver cancer nude mouse transplanted tumor, the effect is equivalent to that of a positive control drug, and obvious toxic and side effects are not observed. The method is stable in process and clear in component, and a reliable technical basis is provided for clinical transformation of gamma delta T cells in immunotherapy of solid tumors and hematologic tumors.
Owner:HEBEI STEM CELL INTELLIGENT MEDICAL TECH GRP CO LTD

Use of CEMIP-ITGA5 axis as target in preparation of product for regulating epithelial-mesenchymal transition and metastasis of lung adenocarcinoma

This invention discloses the application of the CEMIP-ITGA5 axis as a target in the preparation of products that regulate epithelial-mesenchymal transition (EMT) and metastasis in lung adenocarcinoma, belonging to the fields of tumor molecular biology and precision medicine. Through TCGA-LUAD cohort bioinformatics analysis, immunohistochemical verification of clinical specimens, cell function experiments, and a nude mouse subcutaneous xenograft model, this invention discovers and confirms that the CEMIP-ITGA5 axis participates in regulating epithelial-mesenchymal transition, migration, invasion, and metastasis-related malignant progression in lung adenocarcinoma. Specifically, CEMIP positively regulates ITGA5 expression, thereby promoting EMT, proliferation, migration, invasion, and in vivo tumorigenesis in lung adenocarcinoma cells. Based on this, the present invention provides two applications: Firstly, by detecting the expression levels of the dual genes CEMIP and ITGA5, a kit for assessing the risk of epithelial-mesenchymal transition (EMT) and metastasis in lung adenocarcinoma can be prepared. The combined detection of CEMIP and ITGA5 can reflect the activation status of the CEMIP-ITGA5 axis at both the upstream regulatory molecule and downstream effector molecule levels, providing auxiliary molecular evidence for assessing EMT and metastasis-related risks in lung adenocarcinoma. Secondly, by targeting and inhibiting the expression or function of CEMIP and / or ITGA5, drugs can be prepared to inhibit epithelial-mesenchymal transition, migration, invasion, and metastasis-related malignant progression in lung adenocarcinoma, effectively reversing the epithelial-mesenchymal transition phenotype and inhibiting tumor malignant progression. This invention provides novel molecular targets and technical solutions independent of known signaling pathways for prognostic assessment and targeted therapy of lung adenocarcinoma.
Owner:KUNMING MEDICAL UNIVERSITY

A targeted inhibiting drug and its use in the preparation of a preparation for preventing and treating pancreatic cancer

ActiveCN121513009BPancreas CancersApoptosis
The application belongs to the technical field of biological medicine, and discloses a kind of targeted inhibition drug and its application in preparation of prevention and treatment of pancreatic cancer preparation.The drug belongs to azetidine compound, which is the targeted inhibitor of STAT3, and can be directly used in the preparation of prevention and treatment of pancreatic cancer drugs, providing a new approach and technical idea for the treatment of pancreatic cancer.Through the international common pancreatic cancer modeling method, combined with experimental conclusion shows that the compound can effectively inhibit the tumor growth state of nude mice pancreatic cancer, inhibit cell growth related protein expression, inhibit mitochondrial complex enzyme activity and induce cell apoptosis, has a significant prevention and treatment effect on pancreatic cancer, and is expected to become a drug for the treatment of pancreatic cancer.
Owner:SUZHOU HEALTH COLLEGE

Dimerization guaiane sesquiterpene lactone and preparation method and application thereof

The invention provides dimerized guaiane sesquiterpene lactone 1-25 shown in a structural formula as well as a pharmaceutical composition, a preparation method and application thereof, and belongs to the technical field of medicines. The preparation method disclosed by the invention comprises the following steps: carrying out Diels-Alder reaction / deprotection on guaiane diene and divinyl ketone, so as to obtain the dimerization guaiane sesquiterpene lactone 1 to 25. The dimerized guaiane sesquiterpene lactone has inhibitory activity on human hepatoma cell lines HepG2, Huh7 and SK-Hep-1, and the compound 17 can significantly inhibit growth of transplanted tumors in nude mice, can form a pharmaceutical composition with a pharmaceutically acceptable carrier, and can be used for preparing anti-hepatoma drugs.
Owner:KUNMING INST OF BOTANY CHINESE ACAD OF SCI

A human EGFR mutation-driven mouse primary lung cancer cell line, its construction method and application

This invention belongs to the field of tumor biology and drug screening technology, specifically disclosing a human EGFR mutation-driven mouse primary lung cancer cell line, its construction method, and its applications. The cell line, ZST-1, is a human EGFR (L858R / T790M) mutation-driven lung cancer cell line derived from mouse primary lung cancer. It is stable, capable of subcutaneous tumor formation in C57BL / 6 mice, and simultaneously expresses Luciferase and tdTomato reporter genes. Its construction method includes obtaining transgenic mice, virus-induced tumor formation, continuous in vivo passage in nude mice, and in vitro culture and screening steps. This cell line can be applied to in vitro screening and efficacy evaluation of human EGFR mutation-targeting drugs, research on EGFR-TKI resistance mechanisms, tumor bioluminescence imaging and fluorescence tracing, and in vivo tumorigenesis and efficacy experiments in an immune-intact C57BL / 6 background.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

Diterpenoid alkaloid dimer, preparation method and application

The invention relates to the technical field of medicines, in particular to a diterpenoid alkaloid dipolymer, a preparation method and application. The diterpenoid alkaloid dimer is separated from croton plant Vietnam for the first time, the chemical structure and physicochemical properties of the diterpenoid alkaloid dimer compound are confirmed through nuclear magnetic resonance, mass spectrum, infrared and other determination methods, and the pharmacological activity of the diterpenoid alkaloid dimer compound is verified through cell and animal experiments. The novel diterpenoid alkaloid dimer compound can significantly inhibit the growth of tumors in vivo and in vitro, has very significant cytotoxic activity on lung cancer cells A549 and H1299, can significantly promote the generation of tumor cell apoptosis and inhibit the migration and invasion ability of tumor cells, also shows a good tumor growth inhibition effect on tumor nude mice, and has good application prospects. The compound can be used as an anti-tumor drug or a pilot compound, and has a good application prospect.
Owner:YUNNAN UNIVERSITY OF CHINESE MEDICINE

Application of IGF2BP2-m6A-VCAN-TLR2 signal axis in preparation of medicine for treating lymphatic metastasis of intrahepatic cholangiocarcinoma

ActiveCN122005811AOrganic active ingredientsInorganic active ingredientsNode metastasisInsulin-like growth factor-binding protein
The invention discloses application of an IGF2BP2-m6A-VCAN-TLR2 (Insulin-like Growth Factor 2BP2-m6A-VCAN-TLR2) signal axis in preparation of a medicine for treating lymphatic metastasis of intrahepatic cholangiocarcinoma. Aiming at the problems of unknown lymphatic metastasis mechanism and lack of effective targets of intrahepatic cholangiocarcinoma, the invention discovers and verifies that mRNA binding protein 2 of insulin-like growth factor 2 is modified by m6A to regulate and control the expression of pluripotent proteoglycan so as to activate a Toll-like receptor 2 signal, promote macrophages to secrete vascular endothelial growth factor C and drive a brand new pathway of lymphatic metastasis. Based on this, the invention provides an inhibitor targeting the signal axis, especially a small molecule compound 8010-8498. Experiments show that the compound can significantly inhibit migration, invasion and epithelial-mesenchymal transition of bile duct cancer cells, reduce macrophage secretion of vascular endothelial growth factors C, effectively inhibit tumor growth and lymphatic metastasis in a nude mouse popliteal lymph node metastasis model and a spontaneous bile duct cancer model, and present a synergistic effect when combined with gemcitabine and cis-platinum.
Owner:THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV

Culture method of immunodeficient nude mice

The invention relates to the technical field of experimental animal culture, and discloses an immunodeficient nude mouse culture method, which comprises a genotype early-stage identification step based on the morphological characteristics of newborn suckling mouse beards, and specifically comprises the following steps: observing the beards in the mandibular and perinasal areas of a suckling mouse within 12 hours after the suckling mouse is born; if the number of the beards is less than 10, the length is less than 0.5 mm, the beards are curled and hair follicles are sparsely distributed, judging that the beards are homozygotes (nu / nu); if the number is larger than 20, the length is larger than or equal to 1.2 mm, and the seeds grow vertically and are arranged tightly, the seeds are judged to be heterozygotes (n < u / + >). According to the culture method of the immunodeficient nude mice, early-stage accurate screening and efficient culture of the homozygous nude mice can be realized through fine identification of beard forms of newborn suckling mice and milk replacement management of heterozygous breeding mice.
Owner:ZHEJIANG VITAL RIVER LAB ANIMAL TECH CO LTD

Combined medicine for tumor with FGFR3-TACC3 fusion gene and application of combined medicine

The invention relates to a combined medicine for treating tumors with FGFR3-TACC3 fusion genes and application of the combined medicine. The combined medicine at least comprises a medicine composition of an effective dose of an FGFR3 inhibitor and an effective dose of an AURKA inhibitor. BGJ398 and Alisertib are combined for use, so that the tumor formation process of tumor cells with the FGFR3-TACC3 fusion gene in a nude mouse body can be synergistically inhibited; a mouse brain glioma model experiment proves that the treatment effect on brain glioma driven by the FGFR3-TACC3 fusion gene is remarkably improved by combining the two medicines, and the survival time of an experimental animal can be prolonged. The invention provides an effective drug combination strategy for tumor treatment with the FGFR3-TACC3 fusion gene, and has a good clinical application prospect.
Owner:FUDAN UNIVERSITY

Application of lncRNA MIR181A2HG in the preparation of drugs for inhibiting gastric cancer lymph node metastasis

The present invention provides the use of lncRNA MIR181A2HG in the preparation of a drug for inhibiting gastric cancer lymph node metastasis, which relates to the field of biomedical technology. This application discovered that a new lncRNA MIR181A2HG is differentially expressed between gastric cancer cells and normal cells, and is particularly highly expressed in gastric cancer cells. Furthermore, through validation experiments, this application found that knocking down the expression of lncRNA MIR181A2HG significantly inhibited gastric cancer lymph node metastasis in nude mice. This helps provide more accurate diagnosis and treatment for gastric cancer patients, improving their prognosis and quality of life.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV

Application of compound for inhibiting combination of TRIM25 and HIF-1alpha in preparation of medicine for treating tumors

The invention provides application of a compound for inhibiting combination of TRIM25 and HIF-1alpha in preparation of a medicine for treating tumors, and belongs to the technical field of biological medicines. According to the screened compound for inhibiting combination of TRIM25 and HIF-1alpha, interaction of TRIM25 and HIF-1alpha is regulated, ubiquitination of TRIM25-mediated HIF-1alpha is inhibited, and HIF-1alpha protein expression is reduced, and in-vivo and in-vitro anti-tumor research finds that the compound for inhibiting combination of TRIM25 and HIF-1alpha can significantly inhibit proliferation of various tumors, prolong the survival time of tumor-bearing nude mice, and can be used for preparing antitumor drugs for treating tumors. And a potential drug is provided for clinical treatment of tumor-related diseases.
Owner:WUXI PEOPLES HOSPITAL

A method for establishing a tumor-bearing animal model for an OCT system

The application belongs to the technical field of animal model construction, and discloses a method for establishing a tumor-bearing animal model for an OCT system, wherein a SD rat supratentorial brain parenchymal glioma model, a SD rat chiasma glioma model and a SD rat brain stem glioma model are constructed by using a C6 cell line; a rat sciatic nerve sheath tumor model and a rat trigeminal nerve RT4 tumor model are constructed by using an RT4 cell line to obtain a SD rat RT4 tumor cell animal model; and a BALB / c nude mouse U87MG tumor cell animal model and a BALB / c nude mouse IOMM-Lee tumor cell animal model are constructed by using a U87MG cell line and an IOMM-Lee cell line, respectively. The application successfully constructs a rat brain glioma model, a chiasma glioma model, a trigeminal nerve sheath tumor model, a sciatic nerve sheath tumor model, a nude mouse brain glioma model and a nude mouse sciatic nerve meningioma model.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV