252 results about "Gastric tumor" patented technology

The invention discloses Ilicis routundae cortex derivants and an application thereof in preparing a medicament capable of resisting tumors. Ilicis routundae cortex acid is obtained by extracting, separating and purifying traditional Chinese medicine Ilicis routundae cortex to serve as a lead compound; the lead compound is subjected to corresponding chemical reaction to prepare a series of derivants. The pharmacological test proves that the Ilicis routundae cortex derivants have the function of resisting tumor activity and have inhibition action on prostatic cancer cells, lung cancer cells, liver cancer cells, cervical cancer cells and gastric cancer cells; and the inhibiting effects on the tumor cells by the derivants are superior to that of parent nucleus Ilicis routundae cortex.

The invention discloses a preparation method of a barley extract fermented by lactobacillus and an anti-tumor effect of the barley extract fermented by lactobacillus, belonging to the field of food biotechnology. Lactobacillus plantarum (lactobacillus plantarum Dy-1, CGMCC No.6016) is screened from pickled vegetables to serve as a fermentation strain for fermenting the barley, and fermentation conditions are controlled, so that the extract of fermented barley is obtained. Cell tests indicate that the extract has obvious effects on promoting apoptosis and suppressing multiplication of human colon cancer HT-29 cells and gastric cancer SGC-7901 cells, and a model test of the nude mouse bearing the tumor with the human colon cancer HT-29 indicates that the extract has obvious effects on suppressing tumor growth and improving the immune activity of the nude mouse bearing the tumor. According to the preparation method of the barley extract fermented by lactobacillus, the barley is pretreated simply and the production cost is low; and direct vat set fermentation is employed, so that the preparation method of the barley extract fermented by lactobacillus is convenient and rapid, safe and stable, and convenient to control the quality.

Objective methods for detecting and diagnosing intestinal-type gastric cancers are described herein. Also described is method for predicting the presence or absence of lymph node metastasis (i.e., identifying the metastatic phenotype). In one embodiment, the diagnostic method involves the scoring of gene expression profiles that discriminate between lymph node positive tumors and lymph node negative tumors. The predictive score calculated acts as diagnostic indicator that can objectively indicate whether a sample tissue has the metastatic phenotype. The present invention further provides methods of diagnosing intestinal-type gastric cancer in a subject, methods of screening for therapeutic agents useful in the treatment of intestinal-type gastric cancer, methods of treating intestinal-type gastric cancer and method of vaccinating a subject against intestinal-type gastric cancer.

The invention discloses a tumor homing cell-penetrating peptide tLyP-1 modified apoferritin nano-cage and a preparation method thereof. The protein nano-cage is hollow cage-shaped protein formed by self-assembling 24 protein subunits; and one tumor homing cell-penetrating peptide tLyP-1 is modified on an N end of each protein subunit by utilizing a gene recombination technology to obtain a recombinant human body heavy-chain ferritin nano-cage with a tLyP-1 modified surface. According to the protein nano-cage provided by the invention, a medicine is loaded into the nano-cage through adjusting depolymerization and recombination of the protein subunits; the nano-cage has good water solubility and biocompatibility, has excellent stability in a human body and has a uniform size; the nano-cage can be specifically combined with a lot of neuropilin receptors 1 (NRP-1) which are expressed in tumor neovascularization and tumor cells of malignant tumors including gliomas, breast cancer, pancreatic cancer, gastric cancer, colorectal cancer, non-small cell lung cancer and the like; and types of the tumors treated by the nano-cage are greatly increased and the targeting ability of tumor treatment is improved. The protein nano-cage provided by the invention has an extremely great application prospect in the aspects of tumor diagnosis and treatment and the like.

The invention discloses a preparation method of an electrochemical mark-free immunosensor of a gastric cancer tumor marker, and belongs to the field of a novel nano functional material and a biosensor. Firstly, a titanium dioxide-noble metal composite material is directly synthesized on an electrode on a titanium dioxide nano particle substrate by using a photoelectrical chemical synthesis method; furthermore, the electrochemical mark-free immunosensor of the gastric cancer tumor marker, which has the advantages of low cost, high sensitivity, good specificity, rapidness in detection and simplicity in operation, is prepared.

The invention belongs to the technical field of chip detection and particularly discloses an antibody chip kit for detecting early gastric cancer. The antibody chip kit is characterized in that various gastric cancer marker related antibodies are fixed onto a solid-phase carrier, and the specific antibodies are screened from 35 routine gastric cancer marker related antibodies. The antibody chip kit can detect a plurality of gastric cancer related antigen proteins at the same time, and the detection effect of a combined antibody chip is better than that of single tumor markers.

The present invention relates to methods for the diagnosis and treatment of cancer in mammals, in particular gastric cancer, based on the new target AVL9. The present invention thus relates to diagnostic methods and related components to be used in such methods. Furthermore, the present invention relates to the treatment of cancer in mammals, in particular gastric cancer, based on AVL9 as a target. Specifically, the present invention relates to the immunotherapy of cancer using AVL9 tumor-associated cytotoxic T cell (CTL) peptide epitopes, alone or in combination with other tumor-associated peptides, and respective pharmaceutical compositions, in particular vaccine compositions.

The invention discloses gene sets and a scoring model for evaluating a tumor microenvironment, and application of the gene sets, and belongs to the field of biological information. It is proved for the first time that the gastric cancer has remarkable tumor microenvironment typing, and prognosis difference of gastric cancer patients with different typing is remarkable. According to a constructionmethod of the multi-gene scoring model for evaluating the gastric cancer tumor microenvironment, 44 gene sets capable of representing different microenvironment types are screened out, and the prediction efficiency of the tumor microenvironment multi-gene scoring model corresponding to the gene sets is remarkably better than that of other existing models; and the model is not only a prognostic marker of a gastric cancer patient, but also has a quite remarkable prediction effect in pan-cancer. The model provided by the invention not only can be used as a good prognosis biomarker, but also can be used for predicting checkpoint inhibitor immunotherapy response of various tumors by effectively evaluating the tumor microenvironment, and has important significance and clinical application valuefor better screening immunotherapy benefiting people.

The present invention relates to the identification of nucleic acid and amino acid sequences that are characteristic of colorectal, in particular colonic, and gastric tumor tissues and colorectal, in particular colonic, and gastric tissues, and which represent targets for therapy or diagnosis of such tumor diseases in a subject.

The invention relates to an application of a tanshinone compound in preparing anti-tumor medicaments, and the prepared medicaments can resist tumors, such as brain tumors, lung cancer, liver caner, breast cancer, prostatic cancer, pancreatic cancer, cervical cancer, gastric cancer, esophagus cancer, and the like. Proved by experiments, the tanshinone compound is concentration-dependent to suppress the proliferation of tumor cells. The compound can obviously induce the expression of quinone reductase and obviously suppress the generation of tumor vessels, thus the compound can also be used for preparing cancer chemical prevention medicaments, anti-inflammatory medicaments and medicaments for suppressing the generation of the tumor vessels. Frequently used low-price reagents, such as alcohol, chloroform, methanol, silica gel, and the like, are used for separating tanshinone compound monomers from medicinal materials. The method is simple and reliable, has low cost and high efficiency, can be used for carrying out industrialized mass production and is beneficial to popularization and application. The tanshinone compound has a structural general formula disclosed in the specification.

The invention relates to an application of a black raspberry extract (BRBE) in preparation of drugs for treating gastric cancer. According to the invention, the BRBE can be mixed with a pharmaceutical excipient to prepare a clinically acceptable anti-tumor preparation used for treating gastric cancer, and the total effective dose of the BRBE is 0.5-1g / kg / d. Found by anti-cancer experiment researches of in vitro various human gastric tumor cells and in vivo tumor animal models, the BERE has a better inhibitory action on the in vitro tumor cells and a quite obvious effect on preventing and treating the gastric cancer.

The invention relates to a method for diagnosing cancers by quantitively detecting 1 tumor specific related genes and products thereof in a tumor product such as mRNA or protein as well as application thereof to preparing a diagnosis kit. In the invention, an identification method and a kit of tumor specific related genes and products thereof can be effectively applied to the sensitive diagnosis and relative treatment for the cancers.

Described is a vaccine for prevention and treatment of cancer characterized by microsatellite instability (MSI). The vaccine contains an MSI-specific frameshift peptide (FSP) generating humoral and cellular responses against tumor cells or a nucleic acid encoding said FSP. The vaccine of the present invention is particularly useful for the prevention / treatment of colorectal cancer, endometrial cancer, gastric cancer or small bowel cancer.

The invention relates to applications of nicotinamide adenine dinucleotide in the field of pharmacy, and more specifically relates to applications of nicotinamide adenine dinucleotide in preparation of a medicine used for curing liver damages caused by chemotherapy drug doxorubicin hydrochloride. NAD<+> is capable of preventing and treating liver damages caused by chemotherapy drug doxorubicin hydrochloride effectively; and it is also found that NAD<+> is capable of killing glioma cells, neuronal tumor cells, gastric cancer cells, renal tumor cells or breast tumor cells effectively, but possesses no killing effect on normal primary cells.

The invention discloses 3,5-(E)-dibenzylidene-N-cyclopropyl piperidine-4-ketone and application of the 3,5-(E)-dibenzylidene-N-cyclopropyl piperidine-4-ketone in preparing antitumor drugs. The 3,5-(E)-dibenzylidene-N-cyclopropyl piperidine-4-ketone compound can be obtained by Claisen-Schimidt reaction of aromatic aldehyde and N-cyclopropyl-4-piperidine ketone. The 3,5-(E)-dibenzylidene-N-cyclopropyl piperidine-4-ketone compound can obviously restrain the proliferation of various tumor cells and can be used for preparing drugs for treating leukocythemia, colorectal cancer, lover cancer, skin cancer, gastric cancer, breast cancer, prostatic cancer or other malignant tumor.

The invention discloses a dominant sequence GTM of a delta 1 chain complementary determining region (CDR) 3 in human gastric cancer tissue-derived tumor-infiltrating gamma delta T lymphocytes, a T cell receptor (TCR) containing the sequence, and TCR transfected cells. The amino acid residue sequence of the GTM is shown as SEQ ID NO.1 in a sequence table. Experiments prove that GTM peptide can be specifically combined with tumor cells, tumor tissue and V delta 1 T cell ligand MICA protein; and a J.RT3-T3.5 cell platform for expressing the TCR containing the dominant sequence GTM of the delta 1 chain CDR3 in the human gastric cancer tissue-derived tumor-infiltrating gamma delta T lymphocytes on a J.RT3-T3.5 surface is established by a lentivirus expression system, gamma delta 1 tumor-infiltrating lymphocytes (TIL) and a tumor identifying and killing mechanism thereof are simulated in the cell level, the killing activity of the transfected cells TCR gamma 4 delta 1 on the tumor cells is obviously increased, and the killing effect is TCR-dependent. The invention plays an important role in the development of medicines for treating malignant tumors and the adoptive treatment of malignant tumors, and has wide application prospects.

The invention discloses a targeted protein degradation c-Met degradation agent as well as a preparation method and application thereof. The invention provides a c-Met degradation agent based on a targeted protein degradation PROTAC strategy, a preparation method thereof and application of the c-Met degradation agent in the treatment of non-small cell lung cancer, gastric cancer and other cancers.The compound has a remarkable c-Met degradation effect and a remarkable cell proliferation inhibition effect, has the potential of serving as an anti-tumor drug to treat tumors, shows remarkable proliferation inhibition activity in an EBC1 drug-resistant cell strain constructed by lentiviral transfection, is obviously superior to a small molecule inhibitor LXM262. and obviously improves the cell selectivity. The compound has significant advantages in overcoming tumor c-Met acquired drug resistance, especially the compound S27 only provides good activity for c-Met dependent EBC-1 lung cancer cells, it is indicated that the compound S27 has good cell selectivity while the original small molecule inhibitor is multi-target, and the compound also has an inhibition effect on a c-Met non-dependent cell line.

The invention belongs to the biological medicine field, in particular relating to the use of a high efficiency small interfering RNA for preparing a tumor migration inhibition drug. The high efficiency small interfering RNA can silence the expression of survivin, change the adhesive force of breast cancer, gastric cancer and liver cancer cells against IV collagen, and inhibit the migrating ability of the breast cancer, gastric cancer and liver cancer cells at two-and three-dimensional levels. The small interfering RNA can also prepare the drug for inhibiting the tumor migration.

Novel immunotoxins and methods of treating neoplastic diseases are provided. More specifically, immunotoxins comprised conjugation of a c-erbB-2 targeting moiety and a cell growth modulator are provided. These immunotoxins specifically and selectively kill tumor cells that over-express the c-erbB-2 protein. The novel immunotoxins would be useful in treating human mammary carcinomas, human ovarian carcinomas, lung carcinomas, gastric tumors, salivary gland adenocarcinomas, and colon adenocarcinomas.

The invention provides a pyrazolo-[1,5-a] pyrimidine derivative. The invention further provides activity screening results of the cell level and the target level of the compound and an anti-tumor application of the compound for treating diseases or symptoms, such as gastric cancer, lung cancer, cervical cancer, breast cancer or colon cancer. The invention further provides a relevant experiment for the cell level of the compound. The cell level comprises an inhibitory test on a TRPC6 channel and growth inhibitory activity on gastric cancer cells.

The invention discloses traditional Chinese medicine for treating esophagus cancer, gastric cancer, liver cancer and brain tumor. The traditional Chinese medicine is characterized by being prepared from the following Chinese medicinal materials in parts by weight: 35-150 parts of common monkshood root, 8-35 parts of tatarian aster root, 8-35 parts of Chinese thorowax root, 8-35 parts of grassleaf sweelflag rhizome, 8-35 parts of officinal magnolia bark, 8-35 parts of platycodon root, 8-35 parts of Chinese honey locust fruit, 8-35 parts of medicinal evodia fruit, 8-35 parts of dried ginger, 8-35 parts of coptis root, 8-35 parts of ginseng, 8-35 parts of white poria, 8-35 parts of cassia bark, 8-35 parts of croton seed and 8-35 parts of fructus zanthoxyli. The invention further discloses a preparation method of the traditional Chinese medicine. The method comprises the following steps: preparing weighted Chinese medicinal materials into mixed Chinese medicinal powder; mixing the mixed Chinese medicinal powder with honey to obtain pills. The Chinese medicinal composition has the characteristics of small side effects and prevention of relapse after healing.

The invention provides a coumarin macromolecule polymer with anti-tumor activity. 7-hydroxycoumarin or 7-hydroxycoumarin and sulfadiazine is or are connected to N-(2-hydroxypropyl) methacrylamide through a polymerization mode to form a macromolecule copolymer with good biological compatibility. The macromolecule copolymer is used for connecting the 7-hydroxycoumarin with anti-tumor activity and the sulfadiazine to a tumor targeted drug carrier N-(2-hydroxypropyl) methacrylamide to ensure that the anti-tumor activity is overlapped, further the inhibition of the macromolecule polymer to tumors is promoted, and the standing time of anti-tumor drugs in tumors is greatly prolonged; and meanwhile, by adopting the macromolecule carrier HPMA (hydroxypropyl methacrylate), the toxicity of the anti-cancer drugs is reduced, and the hurt to normal tissues is decreased. The coumarin macromolecule polymer can be used for preventing and treating cancers such as gastric cancer, colon cancer, hepatoma and the like.

The invention discloses a method for constructing a tumor xenograft model in mice immunized with gastric cancer based on an organ-like method, and an application thereof. The invention relates to a medical tumor animal model, based on an organ-like method. For the first time, the present invention employs a quasi-organ technique, that is, using a microcarrier as substrate. The composite human gastric cancer cell line SGC-7901 / MKN-45 is transplanted subcutaneously into C57BL / 6 mice to establish a tumor model of human gastric cancer with normal immune function. The tumor model constructed by this method has good tumorigenicity, and the tumorigenicity rate is up to 75%. The HE staining and the immunohistochemistry of the transplanted tumor accord with the characteristics of human gastric cancer. Compared with the existing immunodeficient mice transplanted tumor model, the model can better study and further clarify the mechanism of tumor occurrence and development in the normal immune system, and also provides a more valuable new animal model for the research and development of anticancer drugs. The invention is applied to the tumor model field.

The invention relates to disubstituted phenyl biguanide compounds and application containing the same to inducing malignant tumor cell for anoikis and inhibiting tumor growth and transfer. Proved by in vitro-in vivo experiments, the disubstituted phenyl biguanide compounds show the remarkable functions of inducing the malignant tumor cell for anoikis, starting caspase cascade and inhibiting tumor growth and transfer and also have the characteristics of high efficiency and low toxicity, so the disubstituted phenyl biguanide compounds as pharmaceutical compounds are expected to be applied to a plurality of malignant tumor medicaments for inhibiting the tumor growth, invasion and metastasis and treating human melanoma, neurospongioma, lung cancer, gastric cancer, prostate cancer, ovarian cancer and the like.

The invention discloses a medicament for treating epithelium tumor which comprises the following constituents (by weight percentage): curcumin 0.1-90%, catechin 0.1-90%, quercetin 0.1-90%, OPC 0.1-90%, ginseng saponin 0.1-90% and polysaccharides 0.1-90%.

The invention relates to the field of genetic engineering, in particular to a novel fungal immunomodulatory protein FIP-NHA with antineoplastic activity and a gene thereof. The fungal immunomodulatory protein FIP-NHA according to the invention has an amino acid sequence as shown in SEQ ID NO. 1, and the gene fip-nha for coding the fungal immunomodulatory protein has a nucleotide sequence as shownin SEQ ID NO. 2. The fungal immunomodulatory protein FIP-NHA provided by the invention has the effects on promoting splenic lymphocyte division, increasing synthesis of interleukin 2, and obviously inhibiting proliferation of three tumor cells including hepatoma cell HepG2, gastric cancer cell MGC823 and leukemia cell HL60, therefore, the fungal immunomodulatory protein FIP-NHA as a novel antineoplastic biological agent can be widely used in the fields of health products and biological medicines.

The present invention relates to an indole derivative and uses of the indole derivative in preparation of anti-cancer drugs for tumor inhibition, wherein a cyano indole compound and a boric acid compound can be subjected to one-step synthesis in the presence of a catalyst, a ligand and an additive so as to obtain the derivative. According to the present invention, the derivative has the excellent anti-cancer activity, and results of the activity test show that the derivative provides good tumor cell growth inhibition effects on human gastric cancer cell line (SGC-7901), human lung cancer cell line (H446) and human gastric cancer cell line (HGC-27), such that the derivative can be adopted as the anti-tumor drug in the medicine field and has good medical research prospects and industrial application values.

The invention discloses a new mono-tetrahydrofuran type sugar apple lactone compound with anti-tumor activity, through systematic in-depth research of chemical ingredients of sugar apple seeds, the analysis of wave spectrum and mass spectrum data shows that the new mono-tetrahydrofuran type sugar apple lactone compound (Anno Shikemominbing) can be separated from the sugar apple seeds, in vivo and in vitro anti-tumor activity researches show that mono-tetrahydrofuran type sugar apple lactone provided by the invention has very strong anti-tumor activity for a variety of tumor cells, including lung cancer, breast cancer, liver cancer, cervical cancer and gastric cancer, and the toxicity test research shows that the mono-tetrahydrofuran type sugar apple lactone compound with the anti-tumor activity provided by the invention is expected to be developed into new anti-tumor medicaments.