658 results about "Human liver cancer" patented technology

The invention discloses 4-(benzofuran-5-yl)-2-benzal aminothiazole as shown in a chemical structural formula I. The preparation method of the 4-(benzofuran-5-yl)-2-benzal aminothiazole is as follows: 1-(7-hydroxy/ alkoxy-2,2-dimethyl-2,3-dihydro-benzofuran-5-yl) butanone is subject to bromination and reacts with thiourea to obtain 4-(7-hydroxy/ alkoxy-2,2-dimethyl-2,3-dihydro-benzofuran-5-yl)-2-aminothiazole which reacts with aromatic aldehyde to prepare the 4-(benzofuran-5-yl)-2-benzal aminothiazole. The 4-(benzofuran-5-yl)-2-benzal aminothiazole has good activity inhabiting activity on Hela cells, human liver cancer cells (Bel 7402 cells) and lung carcinoma cells (A549 cells) and can be used for preparing the antineoplastic agent.

The present invention is directed to the identification of markers that can be used to determine the sensitivity of cancer cells to a therapeutic agent. The present invention is also directed to the identification of therapeutic targets. Nucleic acid arrays were used to determine the level of expression of sequences (genes) found in 60 different solid tumor cancer cell lines selected from the NCI 60 cancer cell line series. Expression analysis was used to identify markers associated with sensitivity to certain chemotherapeutic agents.

A method for reducing the likelihood of developing non-alcoholic steatohepatitis (NASH) in an individual diagnosed with non-alcoholic fatty liver disease involves providing in the gut of an individual a population of beneficial bacteria selected from the group consisting of Lactobacillus species, and at least 6 grams per day of fiber to the individual to maintain a therapeutically effective amount of the beneficial bacteria in the gut of the individual. In certain embodiments, monoacylglycerolacyltransferase-3 (MGAT3) synthesis is inhibited to lower triacylglycerol (TAG) production, while in others, expression of diacylglycerolacyltransferase-2 (DGAT-2) is inhibited. The beneficial bacteria are preferably modified to produce increased amounts of butyrate and are also encapsulated in a frangible enclosure. Levels of Roseburia are preferably increased while the levels of Akkermansia spp. in the individual's gut microbiome are reduced.

A magnetic nanoparticle-human liver cancer resistant monoclonal antibody Hab18 or its fragment Hab18F (abí»)2 or Hab18Fab as the target medicine in the form of injection for preventing and treating the liver cancer, stomach cancer and intestinal cancer by magneto-thermal therapy is proportionally prepared from magnetic nanoparticles and said antibody. Under the action of magnetic field, it can generate the heat 10-7000 W/gFe to kill cancer cells.

The invention discloses application of A-nor-5 alpha-androstane compounds in preparation of malignant tumor resistant medicaments. The compounds have the following general formula I, and comprise Ia, Ib, Ic, Id, Ie and If. The growth inhibition rate of the A-nor-5 alpha-androstane compounds for in-vitro human liver cancer cell Hep 3B, human breast cancer MDA-MB-231, human lung adenocarcinoma A549 and mouse melanoma B16 is higher than 85% on average, and even up to 99.98% to the maximum. The in-vivo test proves that the inhibition rate of the A-nor-5 alpha-androstane compounds for mouse tumors, such as intestinal cancer C26, liver cancer H22, Lewis lung cancer, breast cancer, B16 melanoma and the like, is higher than 50% on average, and even up to 63.19% to the maximum. The result proves that the compounds disclosed by the invention have an obvious malignant tumor resistant action. The A-nor-5 alpha-androstane compounds disclosed by the invention have an obvious and broad-spectrum action on inhibiting growth of malignant tumor cells, and are novel targeted malignant tumor resistant medicaments with low drug toxicity and favorable treatment effect; and the A-nor-5 alpha-androstane compounds just specifically act on tumor cells, but not influence normal cells, thereby having a high clinical application value.

The invention discloses a circular RNA-MET gene in liver cancer as well as an expression method and a fluorescent quantitative PCR (polymerase chain reaction) detection method of the circular RNA-MET gene. The cDNA nucleotide sequence of the circular RNA-MET gene in the liver cancer is shown by SEQ ID NO:1. By designing a specific primer capable of amplifying the circular RNA, the circular RNA of the MET gene is amplified out by PCR, and an accurate cyclization site of circular RNA-MET is measured by a method for sequencing a PCR product namely cloned DNA; and the MET gene is determined to objectively contain the circular RNA consisting of 1214 nucleotides. By using the fluorescent quantitative PCR detection method of the circular RNA-MET gene in the liver cancer, the existence and expressive differences of the circular RNA-MET in samples of liver cancer cells and liver cancer clinical tissues can be specifically detected. The invention can provide an ideal gene detection method for early clinical diagnosis of liver cancer.

The invention discloses 5-(4-chlorophenylmethyl)-4-tertiary butyl thiazole derivatives (I), which has the following structural formula as shown in the specification of the invention, wherein X1 in a formula I is selected from hydrogen, hydroxyl group, methoxy group, nitro group, amino group and chlorine; X2 is selected from hydrogen, nitro group, amino group, methoxy group, chlorine, bromine and iodine; X3 is selected from hydrogen, methyl group, ethyl group, nitro group, methoxy group, chlorine, bromine, amino group and dimethylamino group; and X4 is selected from hydrogen, nitro group, amino group, methoxy group, chlorine, bromine and iodine. The 5-(4-chlorophenylmethyl)-4-tertiary butyl thiazole derivatives (I) have favorable inhibition activity on human cervical cancer cells, human liver cancer cells, human nasal and oral cancer cells and the like and can be used for preparing anti-tumor medicines.

A liver cancer blood vessel specific target polypeptide LCI-X7 able to specific binding with liver cancer blood vessel is extracted from the naked mouse model of human liver cancer by the showing technique of phage random peptide library in body and microscopic laser cutting technique. It provides important theory and practical basis for the diagnosis to liver cancer transfer recurrence and target therapy.

The invention relates to a marine bacillus and its polypeptide with antitumor activity. The strain is preserved at China Center for Type Culture Collection in Wuhan, and its preservation number is CCTCC M 2013063. A novel marine bacillus polypeptide with anti-tumor activity is obtained from a fermentation product of the strain. By means of an MTT method, the invention finds that the polypeptide has an obvious proliferation inhibition effect on human hepatoma carcinoma cell BEL-7402, human breast cancer cell MCF-7, human glioma cell U251, human non-small-cell lung cancer cell A549 and other tumor cells, has relatively small cytotoxicity on human fibroblast HFL1, and can be applied in drugs treating human liver cancer, gliomas, lung cancer and breast cancer.

The invention belongs to the field of drugs, and relates to an antineoplastic drug, particularly an indazole/azaindazole-based diarylcarbamide/thiocarbamide-structure antineoplastic drug. The structural general formulae of the indazole/azaindazole-based diarylcarbamide/thiocarbamide-structure antineoplastic drug are disclosed as Formula (Ia) and (Ib), wherein Z is an N or C atom; W is an atom or group, such as O, S, NH, NOH, NCH or the like; M is O, S, N, CH or the like; n is 1 or 2; and Y and R are respectively halogen atom, H, R1, CF3, OCF3, OH, OR2, OCOR3, NH2, NHR4, NR52, NHCOR6, carboxy group, ester group, cyano-group, sulfhydryl group, alkylthio group, sulfuryl group, sulfoxide group, sulfo-group, sulfonate group, sulfamide group, ketone group, aldehyde group, nitro-group or nitroso-group. The pharmacological experiment proves that the drug has favorable antineoplastic effect on human lung cancer, human kidney cancer, human colon cancer, human liver cancer, human stomach cancer and human breast cancer.

The invention provides the identification of the presence of mutant ROS protein in human cancer. In some embodiments, the mutant ROS are FIG-ROS fusion proteins comprising part of the FIG protein fused to the kinase domain of the ROS kinase. In some embodiments, the mutant ROS is the overexpression of wild-type ROS in cancerous tissues (or tissues suspected of being cancerous) where, in normal tissue of that same tissue type, ROS is not expressed or is expressed at lower levels. The mutant ROS proteins of the invention are anticipated to drive the proliferation and survival of a subgroup of human cancers, particularly in cancers of the liver (including bile duct), pancreas, kidney, and testes. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ROS polypeptides (e.g., a FIG-ROS(S) fusion polypeptide), probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The identification of the mutant ROS polypeptides enables new methods for determining the presence of these mutant ROS polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.

The invention discloses a blood miRNA marker related to liver cancer and an application thereof. The marker is the combination of tumor-induced exosome sourced miRNA-26a and miRNA-199a in human blood. According to the invention, tumor-induced exosome in peripheral blood of liver cancer patient and liver benign disease patient can be separated and purified, miRNA of two expression difference can be analyzed and screened by a miRNA chip, and the above conclusion is passed by a QPCR verification. The marker and its detection reagent can be used for preparing a diagnostic kit, which can be used for early diagnosis of liver cancer.

The invention relates to 1,3-substituted-5-acetaminoindolone compounds and an application thereof to anti-tumor drugs. The compounds are 1-methyl-5-acetamino-2-indolinone, 1-(4-bromobenzyl)-5-acetamino-2-indolinone, 1-(4-methylbenzyl)-3-oxime-5-acetaminoindolone, 1-(4-methoxybenzyl)-3-oxime-5-acetaminoindolone and the like. The in-vitro tumor cell inhibitory activities of the 1,3-substituted-5-acetaminoindolone compounds synthesized in the invention are tested and the results show that such kind of compounds have certain inhibiting effects (IC50(100mu M)) on human leukemia cells (K562), human colon cancer cells (HT-29) and human liver cancer cells (HepG2), have anti-tumor activities and can be used for preparing anti-tumor drugs.

The invention discloses a method for inducing a rat liver cancer model by injecting diethyl nitrosamine DEN in coordination with microcystin MC-LR into a rat body through intraperitoneal injection. Indexes such as liver weight to body weight ratio, liver appearance, liver histopathological slicing and GST-Pi (Glutathione S-transferase) protein expression level clearly show liver cell injury phase, liver cell hyperplasia-hepatocirrhosis phase and liver cell carcinomatous change process in a rat liver cancer occurring process, and find that the liver cancer model induced by the DEN in coordination with the microcystin MC-LR has a more obvious effect at the same time than that induced by DEN independently; the tumor formation time is shorter; and the model is an ideal model for researching occurrence of the liver cancer of a human body. The model has the characteristic of clearly showing each stage for occurrence of the liver cancer and contributing to research of a liver cancer occurrence process mechanism, detection of precancerous lesion and development of treatment medicaments.

The invention discloses a compound with antitumor activity and a preparation method and application of the compound and belongs to the technical fields of new compound synthesis and medicine application. According to the compound, the preparation and the application thereof disclosed by the invention, aromatic aldehyde and aromatic ketone are catalyzed by sodium hydroxide to synthesize 3,4,5-triethoxy-3',4'-dimethoxy chalcone for the first time, and the test of in vitro tumor cell inhibitory activity on the 3,4,5-triethoxy-3',4'-dimethoxy chalcone is realized; the result shows that the compound has higher inhibitory activity for human lung cancer cell A549, human colon carcinoma cell SW620 and human liver cancer cell HepG2. In addition, the antitumor activity of the 3,4,5-triethoxy-3',4'-dimethoxy chalcone for the human colon carcinoma cell SW620 and the human liver cancer cell HepG2 is superior to that of a reference drug 5-fluorouracil. The invention provides a new effective treatment means for tumor treatment and has a broad application prospect.

The invention relates to the technical field of biomedicines, discloses a human liver cancer marker and application thereof, and particularly relates to application of a GPT gene to diagnosis and treatment of hepatocellular carcinoma. By a gene chip data analysis and immunohistochemistry method, that the GPT gene is differentially expressed in a hepatocellular carcinoma tissue and a normal tissueis proved, and that expression of the GPT gene is closely related to clinical prognosis of a patient and the GPT gene can be used as an index for early diagnosing the hepatocellular carcinoma is confirmed. Through study on the expression of the GPT gene in liver cancer and a relationship between the GPT gene and the clinical prognosis, a new marker is provided for early diagnosis and prognostic judgment of the liver cancer so as to improve the early diagnosis rate of a liver cancer patient and improve the clinical prognosis of the patient.

The invention discloses a method for preparing a PLGA slow-release microsphere carrying docetaxel and an application thereof in the chemotherapy of the mesenchyma stroma of tumors under ultrasonic mediation. The PLGA slow-release microsphere carrying the docetaxel is a medicine-carrying microsphere prepared from PLGA and the docetaxel by a single emulsification method, the molecular weight of the PLGA in the medicine-carrying microsphere is 5000-50000dal, the mole ratio of lactic acid to glycollic acid is 75:25-50:50, the feeding ratio of the PLGA to the docetaxel is 100/1-100/10, and the PLGA slow-release microsphere carrying the docetaxel is prepared by emulsification in an organic solvent. The slow-release microsphere preparation carrying the docetaxel is injected into the tumor tissues of nude mice with human liver cancer, beast cancer and ovarian cancer, and the necrosis situation of the tumors is checked by pathological histology; the result shows that the slow-release microsphere carrying the docetaxel can thoroughly ablate and inactivate the tumors, reduces the whole-body toxic or side effect of the medicine obviously and is a novel method for the chemotherapy of the mesenchyma stroma of the tumors under ultrasonic intervention with very good clinical application prospect.

The present invention is one kind of protein extracted from Perinereis aibuhiteris and its preparation process and use. The protein is alkali protein with molecular weight 65000 Da and isoelectric point of 8.3. The protein preparing process includes raising Perinereis aibuhiteris in artificial sea water for 24-48 hr to make it become clean, electrically striking Perinereis aibuhiteris with 5-10 V DC to obtain body fluid, centrifugally filtering body fluid, reverse concentration, gel filtering, and chromatographic elution in anionic exchange column to collect active protein. The protein is used in preparing antibiotic medicine resisting escherichia coli, verdigris pseudomonad, staphylococcus aureus and arthrobacter and anticancer medicine for suppressing human liver cancer cell strain proliferation and producing alpha-fetoglobulin, and has high antibiotic activity and obvious anticancer effect.

The invention discloses a 3-(3,4,5-trimethoxybenzoyl)-benzofuran microtubulin inhibitor as well as a preparation method and use thereof. A 3-(3,4,5-trimethoxybenzoyl)-benzofuran compound in the invention has an action mechanism similar to colchicine and is capable of inhibiting polymerization of microtubulins. The 3-(3,4,5-trimethoxybenzoyl)-benzofuran compound has very strong proliferation inhibition activity to human lung cancer cells A549, human gastric cancer cells MGC-803, human liver cancer cells HepG2, human colon cancer cells HCT-116, human cervical cancer cells HeLa and human breast cancer cells MCF-7.

The invention relates to an N'-5-substitutent aryl-2-furan-N-substitutent benzoyl hydyne compound (I) with a novel structure. The compound is produced by reaction of substituted aryl formohydrazide and 5-substitent aryl furan-2-formaldehyde. The compound is found through research to have anti-tumor activities in which people are interested, particularly the activities for resisting stomach cancer, human liver cancer and nasopharynx cancer.

The invention relates to a monoclonal antibody for serological diagnosis of liver cancer and application thereof, and particularly provides an anti-human liver cancer specific monoclonal antibody 7C8. The monoclonal antibody has the characteristics of high stability and high specificity in combination with liver cancer antigen. The invention also provides 7C8 immunoglobulin and a fragment as well as an immunological conjugate thereof and a medicinal composition containing the immunoglobulin, the fragment or the immunological conjugate. The invention also provides a kit for detecting liver cancer.

Disclosed is a mouse having human hepatocytes transplanted therein. Specifically disclosed is a mouse having human hepatocytes transplanted therein.  In the mouse, a foreign thymidine kinase gene or an urokinase-type plasminogen activator gene is retained so that the gene can be expressed specifically in the liver of the mouse, and hepatocytes of the mouse are substituted by human hepatocytes.

The invention discloses a polypeptide molecule exerting selective killing and migration inhibiting effect on cancer cells, and a design method and application thereof, belonging to the technical field of application of biopharmacy. The polypeptide molecule comprises a polypeptide amino acid sequence and constituent (SEQ ID No. 1) and contains altogether 12 amino acids. Through 9R or 8R coupling reconstruction and designing, the polypeptide molecule has strong killing effect on malignant cells of human liver cancer, prostatic cancer, breast cancer and the like and low killing effect on normal human hepatic cells, embryonic kidney cells and umbilical vein endothelial cells; in particular, the polypeptide molecule has strong selective killing effect on liver cancer cells and inhibitory effect on migration of human liver cancer and umbilical vein endothelial cells compared with normal human hepatic cells. The polypeptide molecule is mainly applied to preparation of drugs used for selective killing and migration inhibiting of malignant cells of human liver cancer.