100 results about "SUBCUTANEOUS TUMOR" patented technology

The invention belongs to the technical field of microbial medicine, and provides a primary multidrug resistance human far-end bile duct cancer cell line CBC3T-6 Homo sapiens and application thereof.The human far-end bile duct cancer cell line CBC3T-6 Homo sapiens is separated from differentiated adenocarcinoma in a far-end bile duct, the human far-end bile duct cancer cell line CBC3T-6 Homo sapiens is already subcultured to 50 generations at present, the long-term in-vitro culture character is stable, and on the premise that the biological characteristics of bile duct cancer are reserved, the human far-end bile duct cancer cell line CBC3T-6 Homo sapiens can be used for preparing the primary multidrug resistance human far-end bile duct cancer cell line CBC3T-6 Homo sapiens. The compound has the characteristics of short multiplication time, high mouse subcutaneous tumor formation rate and the like, and has different degrees of drug resistance to gemcitabine, 5-fluorouracil, oxaliplatin and cis-platinum in first-line anti-cancer drugs for bile duct cancer. The method not only enriches an extrahepatic bile duct cancer cell bank, provides a new cell model for basic research and clinical drug research and development of bile duct cancer, but also provides powerful scientific research data for research developed based on the genetic background of Chinese population. Therefore, the primary multidrug resistant cell line has higher scientific research and clinical application values.

The invention relates to application of a retinoic acid compound in preparation of a medicine for treating and / or preventing glioblastoma. Compared with the prior art, the retinoic acid compound (1uM, 5uM) group has the advantages that the tumor inhibition rate of a glioblastoma organ is higher than that of an apatinib (1uM, 5uM) group, and is higher than that of an apatinib (1uM, 5uM) group. The subcutaneous tumor inhibition rate of glioblastoma cells of a retinoic acid compound (0.5 mg / kg and 5mg / kg) group is higher than that of an apatinib (32.5 mg / kg) group, and is higher than that of the apatinib (32.5 mg / kg) group in tumor pathological blood vessel inhibition rate. Therefore, the medicine (retinoic acid compound) for treating and (or) preventing the glioblastoma has a remarkable treatment and (or) preventing effect on the glioblastoma.

The invention provides a multifunctional self-bionic nano vaccine for treating breast cancer. The multifunctional self-bionic nano vaccine comprises MnOx nano particles serving as inner cores and fusion cell membranes wrapping the surfaces of the inner cores of the MnOx nano particles, the fused cell membrane is obtained by fusing a remodeled 4T1 cell membrane and a remodeled DC cell membrane. According to the invention, the nano vaccine can play an immunotherapy role in treating breast cancer under the condition of subcutaneous injection. After subcutaneous peritumoral injection, the multifunctional autologous bionic nano vaccine can target tumor tissues to play an in-situ chemical power treatment role, chemotactic to drainage lymph nodes to realize efficient T cell immune response to play an immunotherapy role, and main organs of the whole body are less gathered, so that the vaccine is safe and reliable; the SPNE prepared in the prior art can cause a certain liver aggregation effect after intravenous injection, and great toxic and side effects are generated.

The invention discloses application of annular RNACirc3426 as a diagnostic marker and a therapeutic target of colorectal cancer. Experiments show that the Circ3426 is highly expressed in colorectal cancer cells and patient serum, and prove that the Circ3426 has good stability, and an ROC curve shows that the Circ3426 has good capacity of diagnosing colorectal cancer. Meanwhile, it is found that the molecule can promote migration and invasion ability of colorectal cancer cells, nude mouse subcutaneous tumor formation experiments prove that knock-down Circ3426 inhibits growth of tumors, and it is indicated that the molecule can serve as a treatment target of colorectal cancer. The invention provides a new diagnostic marker and a treatment target for colorectal cancer, and provides a new thought and direction for CRC diagnosis and treatment.

The invention relates to the technical field of biological medicines, in particular to a CKAP4-targeted tumor antigen peptide, a vaccine and application of the CKAP4-targeted tumor antigen peptide. The invention provides a high-immunogenicity tumor antigen peptide RLTELTKSI targeting human and mouse homologous CKAP4 protein, and the tumor antigen peptide and a vaccine thereof can realize efficient killing of CKAP4 positive tumor cells and remarkable inhibition of CT26 subcutaneous tumor by activating specific CD8 + T cell immune response. The traditional single-target limitation is broken through, the co-expression characteristic of CKAP4 in tumor cells and immunosuppressive cells (TAM / TAN) is utilized, a double-target and double-channel mechanism is initiated, and the immunosuppressive state of cold tumors is effectively reversed by inducing T cells to synchronously kill tumor cells and remodel an immune microenvironment. According to the technology, CKAP4 is expanded from an antibody target to a T cell vaccine target, lasting specific CTL response can be stimulated, the off-target risk of antibody treatment is avoided, a universal treatment scheme can be provided for solid tumors, and the clinical transformation potential and the treatment broad spectrum are remarkably improved.

The invention discloses application of lncRNASEH1-AS1 as a target in preparation of a medicine for treating lung squamous cell carcinoma, and belongs to the technical field of biological medicine. The invention finds that the expression of the lncRNASEH1-AS1 in tissues, plasma and cell lines of a lung squamous cell carcinoma patient is higher than that of a control group of the lung squamous cell carcinoma patient. The lncRNASEH1-AS1 has clinical correlation with the tumor diameter of a lung squamous cell carcinoma patient. The results of CCK-8, clone formation, Transwell migration and invasion experiments show that after the lncRNASEH1-AS1 and the MCM7 are knocked down, the proliferation, migration and invasion ability of the lung squamous cell carcinoma cells is weakened, and after the lncRNASEH1-AS1 is over-expressed, the inhibition of the MCM7 on the proliferation, migration and invasion ability of the lung squamous cell carcinoma cells can be reversely knocked down. The result of a nude mouse subcutaneous tumor formation experiment shows that the tumor formation capability of the LUSC cells which stably knock down the lncRNASEH1-AS1 is weakened.

The invention relates to the technical field of medicines, and discloses a bifidobacterium longum strain GZBAI 01 and application thereof in degradation of benzoic acid and prevention or treatment of colorectal cancer. The strain is separated from faeces of healthy people, genomics identification is carried out, the metabolic profile of the strain is measured through metabonomics, the strain can convert benzoic acid with carcinogenic risk into protocatechuic acid with antitumor activity through unique metabolic capability, meanwhile, the function of regulatory T cells (Treg) in tumor drainage lymph nodes can be inhibited, differentiation of CD8 + T cells is promoted, and the tumor drainage lymph nodes can be inhibited. Therefore, the colorectal cancer is prevented through double ways of eliminating cancerogen and generating therapeutic agents. A colorectal cancer mouse model and a subcutaneous tumor mouse model verify that the strain can significantly reduce the number and volume of tumors, and shows a benzoic acid conversion effect superior to that of other strains in vivo and in vitro, and a new way is provided for prevention and treatment of colorectal cancer.

The invention belongs to the technical field of biological medicine, and relates to a kidney cancer axitinib drug-resistant cell model and a construction method and application thereof. The technical problems that in the prior art, a kidney cancer axitinib drug resistance mechanism is not clear, and a drug resistance target of the mechanism and a cell model of a molecular mechanism are lacked for research are solved. The invention provides a construction method of a kidney cancer axitinib drug-resistant cell model. The construction method comprises the following steps: constructing a nude mouse subcutaneous tumor-bearing model by using a kidney cancer cell line; when a subcutaneous tumor of a nude mouse reaches a target volume, after axitinib gavage treatment is performed on the nude mouse, first-generation drug-resistant kidney cancer cells are obtained through separation; shearing the tumor blocks into tumor blocks, inoculating the tumor blocks to the armpits of nude mice, and repeating the steps of gavage, separation and inoculation to respectively obtain second-generation and third-generation drug-resistant kidney cancer cells; and cutting the third-generation drug-resistant kidney cancer cells into pieces, digesting and culturing to obtain the kidney cancer axitinib drug-resistant cell model. The constructed kidney cancer axitinib drug-resistant cell model is applied to research of a kidney cancer cell targeted therapy drug-resistant mechanism and screening or preparation of kidney cancer targeted drugs.

The invention relates to application of lactobacillus muricatum in preparation of a medicine for treating oral cancer, the oral cancer is oral squamous cell carcinoma, a C57BL / 6 mouse tongue squamous cell carcinoma model induced by a 4-NQO water drinking method and a C3H / HeN subcutaneous tumor model inoculated by SCC7 tumor cells are constructed, and the lactobacillus muricatum has a remarkable inhibition effect on the oral cancer; experiments prove that the number / area / volume / weight of tumors is remarkably reduced by the lactobacillus muricatum, tumor marginal infiltration and abnormal karyokinesis are effectively inhibited, the expression quantity of tumor proliferation markers is remarkably reduced, and obvious pathological changes do not appear in main organs (heart, liver, spleen, lung and kidney) of mice. The method for minimally invasive injection of the lactobacillus muricatum into the oral squamous cell cancer tumor is safe, drug resistance is not easily induced, the treatment scheme is standardized, and the method has good clinical application potential.

The present invention belongs to the field of bioengineering technology, in particular to a HPV16 / 18 therapeutic vaccine, preparation method and application. The present invention discloses a fusion protein, which is a protein as follows a) or b): a) the amino acid sequence is a fusion protein of SEQ ID No.2; b) the amino acid sequence shown in SEQ ID No.2 is replaced and / or deleted and / or added to obtain a fusion protein with HPV16 / 18E6-E7 activity. The recombinant adenovirus that can express the fusion protein HPV16 / 18E7 protein provided by the present invention is used as an HPV16 / 18 therapeutic vaccine (MATV3), which has good immunogenicity in a mouse model and can induce a strong cellular immune response in a short time. The study on the tumor inhibition effect of the TC-1 mouse subcutaneous tumor model showed that the growth of TC-1 tumors can be significantly inhibited after two inoculations of MATV3, and HPV 16E7 and HPV18E7-specific cellular immune responses can be generated in mice. The vaccine preparation method is fast and simple, and can be mass-produced for community populations.

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.

Phytol (PHY) is a metabolite of plant chlorophyll, is wide in source and is a chain-like diterpenoid substance consisting of four isoprene units, and the phytol ingested by animals is subjected to oxidative metabolism in vivo, so that not only can energy be provided for the animals, but also the growth of the animals can be promoted, and the growth of the animals can be promoted. Moreover, the phytol and the phytanic acid metabolite of the phytol can also be used as signal molecules to participate in glycolipid metabolism and adipocyte differentiation regulation processes, but people cannot directly take the phytol and the phytanic acid from the nature. The effect of phytol in the generation and development of tumors still has huge unknown property. According to the research, the influence of the phytol and the derivative thereof on the growth of colon cancer, breast cancer and melanoma is detected through an in-vitro experiment CCK-8 (Cell Count Kit 8) and an in-vivo experiment such as a mouse subcutaneous tumor model, and the phytol and the derivative thereof are found to be capable of remarkably inhibiting the growth of colon cancer, breast cancer and melanoma and have no obvious toxic and side effects on heart, liver and kidney functions.

The present application relates to the application of Hhex agonists in promoting anti-tumor immunity. Specifically, the present application provides a pharmaceutical composition comprising chenodeoxycholic acid and an anti-PD-1 antibody. The present application also provides the use of chenodeoxycholic acid and an anti-PD-1 antibody in the preparation of a drug for promoting anti-tumor immunity. In addition, the present application also provides the use of chenodeoxycholic acid and an anti-PD-1 antibody in the preparation of a drug for treating tumors. The present application uses chenodeoxycholic acid to improve the tumor immune microenvironment and uses it to treat subcutaneous tumors, further verifying that the application of chenodeoxycholic acid can improve the tumor immune microenvironment.

The application discloses a nano-antibody (also known as single-domain antibody) conjugated photosensitizer targeting HER2, a preparation method of the photosensitizer and application of the photosensitizer in tumor photodynamic therapy. The photosensitizer is shown in a general formula (I). In the photosensitizer, the nano-antibody (N HER2 ) serving as a targeting ligand is connected with a photosensitive moiety (PS) through a catalytic reaction mediated by a transglutaminase (MTGase). Research finds that the anti-HER2 nano-antibody conjugated photosensitizer molecule has good cell killing selectivity and tumor enrichment capacity, and can remove a subcutaneous tumor of a mouse with high HER2 expression in one administration. HER2 -PEG 1K -PS (I).