112 results about "Small cell lung carcinoma cell" patented technology

Cancer associated antigens have been identified by autologous antibody screening of libraries of nucleic acids expressed in small cell lung cancer cells using antisera from cancer patients. The invention relates to nucleic acids and encoded polypeptides which are cancer associated antigens expressed in patients afflicted with small cell lung cancer. The invention provides, among other things, isolated nucleic acid molecules, expression vectors containing those molecules and host cells transfected with those molecules. The invention also provides isolated proteins and peptides, antibodies to those proteins and peptides and cytotoxic T lymphocytes which recognize the proteins and peptides. Fragments of the foregoing including functional fragments and variants also are provided. Kits containing the foregoing molecules additionally are provided. The molecules provided by the invention can be used in the diagnosis, monitoring, research, or treatment of conditions characterized by the expression of one or more cancer associated antigens.

The invention provides a veratramine degradation product veratrum fluorene aldehyde 1 and derivatives thereof. The invention uses steroidal alkaloid veratramine (A) as raw material and prepares veratrum fluorene aldehyde by oxidative degradation of m-chloroperoxybenzoic acid to obtain 20 derivative compounds of the veratrum fluorene aldehyde 1 after further oxidation, reduction and condensation reaction. The 20 compounds of the invention have good inhibitory activity on cancer cells, wherein the compounds 1, 2, 5, 8, 13 and 17 have good inhibitory activity on cells of human pancreatic cancer cells BxPC-3 and SW1990, small-cell lung cancer cells NCI-H446, human colorectal cancer LOVO and the like, and the inhibitory activity of the compound veratrum fluorene aldehyde 1 is the most significant.

The invention discloses aptamer for typing different subtypes of non-small cell lung cancer and a method for screening the same. The aptamer provided by the invention is any DNA segment of nucleotide expressed by sequence 1 to sequence 9 in a sequence table. The aptamer is applied for typing different subtypes of non-small cell lung cancer. The aptamer of the invention can differentiate the different subtypes of non-small cell lung cancer on the molecule response signal under the condition of not knowing tumor markers of the non-small cell lung cancer. Using the aptamer of the invention for identifying the combined target is good for discovering the tumor markers of the different subtypes of non-small cell lung cancer, and earlier and exactly diagnosing and typing non-small cell lung cancer and discovering the tumor for treating new drug action targets.

The invention discloses a non-small cell lung cancer cell line, and an establishment method and application thereof. The human non-small cell lung cancer cell line is preserved in China Center for Type Culture Collection with an accession number of CCTCC NO: C2012128. The establishment method comprises the following steps: step 1, acquiring a fresh clinical human non-small cell lung cancer surgical specimen, cutting the specimen into small blocks with a size of 20 to 50 mg and inoculation mammals with the block through subcutaneous puncture; and step 2, in 70 to 90 days after the puncture-inoculation, killing a tumor-bearing animal, taking tumor tissue out of the tumor-bearing animal and carrying out primary culture and subculture of cancer cells. According to the invention, the human non-small cell lung cancer cell line has the advantages of stable properties, capability of realizing stable multiple passage, a high tumor formation rate, a short latent period and good homogeneity; meanwhile, the human non-small cell lung cancer cell line has acquired drug resistance to gefitinib, can be used to analyze correlation between in-vitro and in-vivo drug sensibilities and drug resistance and is the ideal cell line for basic research on and preclinical application of human non-small cell lung cancer.

A large number of aziridinyl quinones represented by Series 1-9 were studied with respect to their DT-diaphorase substrate activity, DNA reductive alkylation, cytostatic/cytotoxic activity, and in vivo activity. As a result generalizations have been made with respect with respect to the following: DT-diaphorase substrate design, DT-diaphorase-cytotoxicity QSAR, and DNA reductive alkylating agent design. A saturating relationship exists between the substrate specificity for human recombinant DT-diaphorase and the cytotoxicity in the human H460 non-small-cell lung cancer cell line. The interpretation of this relationship is that reductive activation is no longer rate limiting for substrates with high DT-diaphorase substrate specificities. High DT-diaphorase substrate specificity is not desirable in the indole and cylopent[b]indole systems because of the result is the loss of cancer selectivity along with increased toxicity. We conclude that aziridinyl quinones of this type should possess a substrate specificity (VMAX/KM )<10x10-4 s-1 for DT-diaphorase in order not to be too toxic or nonselective. While some DNA alkylation was required for cytostatic and cytotoxic activity by Series 1-9, too much alkylation results in loss of cancer selectivity as well as increased in vivo toxicity. Indeed, the most lethal compounds are the indole systems with a leaving group in the 3a-position (like the antitumor agent EO-9). We conclude that relatively poor DNA alkylating agents (according to our assay) show the lowest toxicity with the highest antitumor activity.

The invention provides an abies holophylla triterpenoid compound, which comprises the following compounds 1, 2, 3, 4 and 5. The compounds are subjected to an experiment of cytotoxic activity, and a result shows that the five compounds have good inhibitory activity and excellent anti-tumor effect on human lung cancer cells, human intestinal cancer cells, human small cell lung cancer cells and human breast cancer cells. The five compounds are proved by a curative effect experiment on sarcoma (entities) of mice S180 to have the obvious tumor-inhibitory effect. The abies holophylla triterpenoid compound can be used for preparing anti-cancer medicaments. The medicaments of the invention consist of the abies holophylla triterpenoid compound serving as active ingredients and a conventional medicinal carrier, and can be prepared into preparations according to the conventional method. The medicaments of the invention are Chinese medicinal preparations, have small toxic and side effect and highcurative effect, provide new anti-cancer medicaments clinically, have large practical application value and can create good social benefit.

The invention discloses a novel anti-crizotinib human non-small cell lung cancer cell strain which is named as H3122-CR23 and has an accession number of CCTCC No. C201780. The cell strain has F1174C mutation in an ALK kinase area. The cell strain H3122-CR23 is applicable to research on the morphological and biological characteristics of human anti-crizotinib non-small cell lung cancer cells, research on the drug resistance mechanisms of tumors, development of drugs for drug resistance reversal of tumors, analysis of the susceptibility of antitumor drugs, screening and assessment of antitumor drugs, research on more efficient tumor treatment methods, etc., has high application value in scientific research and production, and is expected to produce good scientific research, economic and social benefits.

The invention belongs to the field of gene engineering, and particularly relates to application of LINC00961 to prediction of non-small-cell lung cancer (NSCLC) prognosis and treatment of target spot medicine. In the NSCLC, down-regulation of the LINC00961 is closely related to clinical stages and tumor sizes, and is closely related to patient prognosis at the same time. The invasion, migration and the like of NSCLC cells are influenced by changing expression of the LINC00961, so that the LINC00961 expression is enhanced, and the invasion and migration of the NSCLC cells can be restrained.

The invention discloses a nucleic acid aptamer for classification of different-subtype non-small cell lung cancers and a screening method thereof. The nucleic acid aptamer provided by the invention is a DNA segment which comprises nucleotide shown as any one of sequences 1 to 9 in a sequence table. The nucleic acid aptamer can be applied to the classification of the different-subtype non-small cell lung cancers. By using the nucleic acid aptamer of the invention, the differentiation of the different-subtype non-small cell lung cancers can be realized on a molecular response signal under the condition that tumor markers of the non-small cell lung cancers are unknown. When used for identifying a target combined with the nucleic acid aptamer, the nucleic acid aptamer is favorable for finding out the tumor markers of the different-subtype non-small cell lung cancers, performing earlier diagnosis and more accurate classification of the non-small cell lung cancers and finding out new medicament acting target points for tumor therapy.

The present invention provides a method for preparing antrocin of pharmaceutically acceptable salts thereof via a series of gold-catalyzed cyclization to construct the (6-6-5) tricyclic core frame. The present invention also provides a use of a composition in preparing drugs for suppressing growth of non-small cell lung cancer cells, wherein the composition comprises an effective amount of antrocin or pharmaceutically acceptable salts thereof and a pharmaceutically acceptable carrier.

The invention provides a small molecule peptide with the amino acid sequence of cdGIGPQc (SEQ NO.1); and the invention can be prepared by a solid-phase synthesis method. The small molecule peptide has specific adhesion action to non-small cell lung cancer cells and can be used for separating the non-small cell lung cancer cells. The invention also provides a resin bead which is formed by a resin bead with an NH2 active group on the surface and the small molecule peptide by -CO-NH- connection. The resin bead has very high specificity for the non-small cell lung cancer cells, can be used for assisting chest hydrocele desquamate cell test method in diagnosing non-small cell lung cancer, and improves the diagnosis rate to be 13.51%.

The invention relates to novel use of a mitochondrial respiratory chain inhibitor rotenone in reversing the tolerance of non-small cell lung cancer cells to targeted antineoplastic agents. The rotenone serves as a non-small cell lung cancer cell sensitizer and can reverse the tolerance of the non-small cell lung cancer cells to the targeted antineoplastic agents. The invention shows the combination of rotenone compounds and TRAIL has no obvious toxic or side effect on normal cells and is a novel medicinal composition used for treating the non-small cell lung cancer.

The method relates to novel application of PAK3 as a biological marker of a neuroendocrine tumor. Through protein expression level detection of PAK3 on thymic carcinoid, pheochromocytoma, parathyroid adenoma, pituitary tumor, adrenal adenoma, cell strains of islet cell tumor, cell strains of small cell lung cancer and other neuroendocrine tumor tissues and cells, the PAK3 highly expresses and covers neuroendocrine tumors common in clinics and relates to each tissue and gland of body; the novel application initially finds that the PAK3 is relevant to tumors, in particular to the neuroendocrine tumor; the novel application discloses that the PAK3 can obviously increase the transferring capacity of the cell and shows that the PAK3 plays an important role in the developing process of the neuroendocrine tumor; and the result shows that the PAK3 can be used as the biological marker of the neuroendocrine tumor.

The invention discloses a preparation method of a Car-NK cell for small cell lung cancer. The method comprises the following steps: collecting peripheral blood of a patient and isolating an NK cell with an Ficoll method; placing a peripheral blood mononuclear cell in an NK medium, adjusting the cell concentration, placing the cell in an incubator for continuous culture for 48-72 h, and collectingan adherent cell; adding the cell to the NK medium for continuous culture for 12-15 days, and supplementing a culture solution once every three days; transfecting the NK cell with lentivirus and performing multiplication culture to obtain the Car-NK cell; preparing a small cell lung cancer cell preparation.

The invention belongs to the field of genetic engineering and particularly relates to an application of a circular RNA circ-0058040 to preparation of a drug for treating a non-small cell lung cancer.Proliferation, apoptosis and drug susceptibility of a non-small cell lung cancer cell are influenced by changing expression of the circular RNA circ-0058040; the application illustrates that the proliferation of the non-small cell lung cancer cell can be inhibited by the expression of the circular RNA circ-0058040; and the susceptibility of the non-small cell lung cancer cell to a targeted drug can be enhanced.

The invention discloses application of anti-human immunodeficiency virus (HIV) drug amprenavir in preparation of an antitumor drug. The anti-HIV drug amprenavir identified by food and drug administration (FDA) is taken as a material; the killing effect of the amprenavir on a tumor cell is detected by adopting a microwave theory and techniques (MTT) method. An experiment proves that the amprenavir has a significant inhibiting effect on multiplication of a plurality of tumor cells, such as a breast cancer michigan cancer foundation (MCF-7) cell, a non-small cell lung cancer A549 cell, a mouse embryonic fibroblast glioblastoma multiforme L929 cell, a colon cancer HT29 cell, a brain glioma U87 cell and the like, so as to clarify new use of an old drug. Therefore, foundation is provided for development of a novel anti-tumor drug.

The invention belongs to the field of genetic engineering, and particularly relates to applications of LINC00111 in preparation of drugs for predicting the prognosis and the target point of non-small cell lung cancer, and treatment. According to the present invention, the expression of LINC00111 in NSCLC is up-regulated, such that the influence on the invasion, the migration and the like of non-small cell lung cancer cells can be produced by changing the expression of LINC00111, and the non-small cell lung cancer cell proliferation can be inhibited and the apoptosis can be induced by knocking down the expression of LINC00111.

The invention discloses a 1,2,3,4,6-O-pentagalloylglucose germanium complex and a preparation method and application thereof. The 1,2,3,4,6-O-pentagalloylglucose germanium complex is formed by complexing of 1,2,3,4,6-O-pentagalloylglucose and germanium ions. The invention further discloses a specific synthesis process and application of the 1,2,3,4,6-O-pentagalloylglucose germanium complex in preparation of lung cancer treatment or prevention medicine. The synthesized compound is novel in structure, and the synthesis process is simple. The compound has good inhibiting effect on human colon cancer cells HCT116, human cervical cancer cells Hela, human pancreatic cancer cells BxPC3, human small cell lung cancer cells A549, human gastric cancer cells SGC7901 and human breast cancer cells MCF7.

The invention relates to application of miR-486-5p in a non-small cell lung carcinoma cell line. The miR-486-5p performs specific low-expression in a non-small cell lung carcinoma cell and a series of lung carcinoma tissue clinical specimen; in an H1299 cell, the over-expressed miR-486a-5p can inhibit cell proliferation of H1299 and inhibit G1/S conversion to block the cell in the G1 phase. Experiments based on bioinformatics analysis discovers that the miR-486a-5p is complementary with 3'-UTR () of a target gene mRNA (messenger ribonucleic acid), so that translation of the mRNA of the target gene can be inhibited or the mRNA of the target gene can be directly degraded; furthermore, western blotting and other experiments prove that the CDK4 gene is the target gene of the miR-486a-5p. The experiment first proves that the CDK4 gene is the garget gene of miR-486a-5p, and the miRNA is utilized to diagnose and treat non-small cell lung carcinoma in clinical application, and a certain application value is created for providing the aspect of drug targets.