69 results about "Primary cancer" patented technology

The invention discloses a method of identifying a gene associated with stage III primary cancer or lymph node metastasis. The genes so identified include CAV1, CST3, LIMK1, MMP2, MMP15, VEGF, ETV4, MMP9, PIK3C2B, and SERPIN1. Also disclosed are methods for diagnosis, prognosis, and treatment of cancer. The invention further discloses compositions for preventing and treating diseases.

Among the genes identified, in a comparison of the global gene expression profile of metastatic colorectal cancer to that of primary cancers, benign colorectal tumors, and normal colorectal epithelium, the PRL-3 protein tyrosine phosphatase gene was of particular interest. It was expressed at high levels in each of 18 cancer metastases studied but at lower levels in non-metastatic tumors and normal colorectal epithelium. In three of twelve metastases examined, multiple copies of the PRL-3 gene were found within a small amplicon located at chromosome 8q24.3. These data suggest that the PRL-3 gene is important for colorectal cancer metastasis and provides a new therapeutic target for these intractable lesions.

The present invention provides methods of treating cancer, the methods generally involving combination therapy. The methods are useful as primary cancer therapy, or as adjuvant therapy. The present invention further provides diagnostic methods for determining the responsiveness of a given tumor to treatment with a combination therapy.

Methods for assessing stage of cancer in a subject are provided, comprising administering a macrophage imaging agent to the subject, making a magnetic resonance image of regions of the subject's body at cancer risk, and using the image to assess macrophage density and displacement associated with any primary cancer or metastatic cancer in the subject, such density and displacement being indicative of neoplasia. The macrophage imaging agent may be an ultrasmall superparamagnetic iron oxide particle and in particular embodiments, the macrophage imaging agent has a blood half-life sufficient to permit microphage trapping throughout the regions at cancer risk. Additional embodiments provide methods for assessing efficacy of an anticancer treatment in a subject, methods for determining frequency of follow-up MEMRI evaluation in a subject, methods for determining metastatic potential of cancer foci in a subject, and methods for determining prognosis of cancer in a subject. Methods for directing site of biopsy in a subject by performing a whole body MEMRI evaluation of the subject to identify macrophage density at a tumor site of interest and assessing the macrophage density to identify the site of biopsy in the subject, macrophage density being an indicator of tumor growth are also provided, in addition to methods for providing individualized cancer treatment to a subject in need thereof using whole body MEMRI evaluation.

The invention discloses three gene groups for transferring and typing prognostic numerator to breast cancer, a gene chip, an unsupervised clustering map from a gene expression profile and a method for transferring and typing prognostic numerator to breast cancer patients. The invention is characterized in that: the gene chip is point-sampled and prepared by specific cDNA or oligonucleotide of the gene groups with an lattice form on the surface of the supports, and is used for transferring and typing prognostic numerator to breast cancer; the cDNA or amplified products of primary cancer tissue specimens based on breast cancer patients are fluorescence-marked and then crossbred with the gene chip for transferring and typing prognostic numerator to breast cancer, and then the gene expression profile is obtained, and the unsupervised clustering map for transferring and typing prognostic numerator to patients comes from the gene expression profile; the method makes use of the gene chip and the gene expression profile for transferring and typing prognostic numerator to breast cancer.

The invention relates to a circulating tumor cell mouse model and a construction method and application thereof. The method includes the following steps of 1, subcutaneous transplantation, wherein a primary tumor tissue sample is transplanted into the body of an immunodeficient mouse to construct a primary cancer heterotransplantation model PDX; 2, collection of circulating tumor cells, wherein the circulating tumor cells in peripheral blood in the primary cancer heterotransplantation model obtained in the step 1 are collected; 3, renal sac membrane transplantation, wherein the circulating tumor cells collected in the step 2 are transplanted into the renal sac membrane of the immunodeficient mouse, and then the circulating tumor cell mouse model is successfully constructed. According to the method, the mode of transplantation with two or more times of passages is adopted, the CTCs in the primary cancer heterotransplantation model are transplanted into the body of the immunodeficient mouse through renal sac membrane, and the circulating tumor cell mouse model is obtained; the circulating tumor cell mouse model can be applied to research on the in-vivo metastasis mechanism and proliferation condition of CTCs.

Provided herein is a method for diagnosing/prognosing a metastatic cancer in a subject by measuring and detecting one or more of CS-ANXA2, DCAMKL, Lgr5 or CS-ANAX2 and DCAMKL or CS-ANXA2 and Lgr5 positive circulating tumor stem cells in the subject's blood or plasma. Also provided is a method for distinguishing the presence of early stage primary cancer from advanced stage metastatic cancer in the subject by measuring and detecting AnnexinA2, CS-ANXA2 and DCAMKL−1 or Lgr5 in the blood or plasma. In addition, there is provided a method for distinguishing the presence of benign, pre-cancerous tumorous growths or cancerous tumors in the subject by measuring and detecting AnnexinA2 and circulating tumor stem cells positive for CS-ANXA2 and DCAMKL or CS-ANXA2 and Lgr5 in the blood or plasma.

A method and composition for of treating cancer, and in particular, for arresting the progression of a solid or primary cancer to a more invasive, metastatic state, are disclosed. The composition includes a substantially uncharged antisense compound (i) having a nuclease-resistant backbone, (ii) capable of uptake by target cancer cells in the subject, (iii) containing between 10-40 nucleotide bases, and (iv) having a base sequence effective to hybridize to a region of processed or preprocessed human SNAIL RNA transcript. The compound, when administered to the subject, is effective to form within target cancer cells in the subject, a base-paired heteroduplex structure composed of human SNAIL RNA transcript and the oligonucleotide compound, where this structure is characterized by a Tm of dissociation of at least 45° C. The compound is administered in an amount sufficient to inhibit SNAIL expression in target cancer cells, thereby to inhibit the progression of the patient's cancer to a more invasive, metastatic state. Also disclosed are methods for preventing the transdifferentiation of peritoneal mesothelial cells and failure of ultrafiltration in a patient undergoing peritoneal dialysis, by including the compound in the patient dialysis fluid.

The invention discloses a method for utilizing a malignant pleural effusion for separately culturing primary cancer cells. The method comprises the steps of putting a pleural effusion sample into a sample collecting liquid, and centrifuging to remove a supernatant; adding a red blood cell lysis buffer for removing a red blood cell, adding a PBS buffer solution for washing the cells, and centrifuging to remove a supernatant; using a KL culture medium for resuspending a cell precipitate, inoculating in a culture flask, and culturing in a culture box. When the cells are proliferated to more than85 percent of abundance, the cells are washed through the PBS buffer solution, pancreatin-EDTA is digested, and a stop buffer neutralizes digestion reaction; the cells are centrifugally collected, areresuspended through the KL culture medium, and inoculated in the cell flask according to the proportion so as to be subcultured. The primary cancer cells of the pleural effusion obtained by separatedculture through the method provided by the invention can be applied to related research of physiology, pharmacy, new drug research and development and the like, exploration of pathogenesis of relateddiseases of a lung cancer, detection of drug sensitivity of different drugs, screening of anti-cancer drugs, new drug research and development, and establishment of a personalized treatment program aiming at a patient.

A method of producing a cell mass by three-dimensional culture of primary cancer cells having proliferative ability and properties of handleability, versatility, and high-throughput performance, in which a tumor tissue is used as a starting material, proliferation of cells such as fibroblasts other than cancer cells is inhibited, and the cell mass includes primary cancer cells as a main component. The object is achieved by providing a method of producing a cell mass by three-dimensional culture of primary cancer cells using a tumor tissue, including: a three-dimensional culture step of culturing cells obtained from the tumor tissue in a medium containing a 5% v/v or less extracellular matrix on a substantially low-adhesive cell culture substrate.

The invention comprises the administration of an amount of honokiol (HNK) and Modified Citrus Pectin (MCP) or similar pectin or alginate in amounts synergistic to inhibit cancer. The inhibition can be of the formation of cancer, the progression of a cancer already formed, or the transformation of a primary cancer to a metastatic one. HNK and MCP appear to be synergistic across their effective ranges, and the synergy may be due in part to the binding of galectin-3 on the surface of tumor cells by MCP, which better presents the cell for the cytotoxic effects of HNK. Compositions of matter which combine the two agents, HNK and MCP, in synergistic amounts intended for daily administration are also contemplated. The administration of MCP and HNK may be combined with the administration of conventional anti-cancer therapeutics.

Gene expression patterns were analyzed that identified multiple genes associated with radiation enhanced colon carcinogenesis. Some of the genes modulated by radiation exposure may be involved in up-regulating the Wnt/β-catenin signaling pathway and promote colon carcinogenesis. Consumption of a fish oil/pectin diet caused a general down-regulation of genes encoding proteins involved in cell adhesion and receptor activity, which may be involved in down-regulating the Wnt/β-catenin signaling pathway. The data suggest that dietary fish oil/pectin may be an effective countermeasure against radiation-induced colon carcinogenesis. In accordance with this, gene expression profiles can be monitored to reduce the risk of radiation induced carcinogenesis in high risk personnel (i.e., for example, astronauts) before, during, and/or after radiation exposure (i.e., for example, spaceflight), and/or to detect radiation-induced carcinogenesis so that an appropriate countermeasure administration can be implemented. The techniques are also targeted at non-invasively monitoring cancer patients after the primary cancer has been resected to determine if/when a secondary tumor develops.

The invention discloses a medicine for treating liver cancer. The medicine comprises the following Chinese herbal medicines of virgate wormwood herb, szechwan chinaberry fruit, cassia seed, tuber fleeceflower root, leech, ginseng, hawthorn fruit and the like in a weight ratio. According to the medicine, the effective rate of treating primary cancer liver in moderate and advanced stages is 76.2 percent, and tumors are stable and difficultly relapse after treatment. Experiments on hearts, livers, spleens, lungs and kidneys of animals are performed within the range of treatment dose, and the toxic or side effects are not obvious.

The invention discloses a stomach cancer metastasis therapeutic device. The device comprises a casing, a motor, a vibration friction head, a spring, a speed-control switch and stype. In the stage of preventing the occurrence of stomach cancer metastasis after operation, an externally used chemotherapeutic drug is applied to a primary cancer focus and peripheral and remote end parts where cancer cells are easy to spread, and the device is adopted for the treatment focusing on medicinal massage for recovering functions and taking killing the cancer cells as a supplement, and prevents the occurrence of stomach cancer metastasis. In the stage of occurrence of stomach cancer metastasis, an externally used chemotherapeutic drug is applied to the primary cancer focus, a metastasis focus part, parts around the focus, and corresponding parts on the back, main treatment performing medicinal massage, transdermal drug delivery and chemotherapy controls stomach cancer metastasis is performed to eliminate cancer metastasis, and an externally used supporting drug is applied to other parts with functions being decreased, so as to perform medicinal massage and function recovery auxiliary treatment. In the stage of stomach cancer metastasis and death occurrence, the main treatment combining full-body supporting drug massage and full-body horizontal extensional movements for recovering a full-body function is performed, and meanwhile the auxiliary treatment of small-dose intravenous chemotherapy for killing the cancer cells is performed, so as to eliminate death occurrence factors.

The present invention relates to methods for the prognosis of the progression of cancer in a patient, and more particularly methods for the prediction of the occurrence of metastasis in one or more tissue or organ of patients affected with a cancer, in particular with a breast cancer, a lung cancer or other primary cancer, said methods comprising the step of detecting a higher expression level of FERMT1 gene in a tumour sample compared to a control reference values. The invention further relates to inhibitors of FERMT1 expression and their uses in the treatment of cancer or metastasis.

The invention discloses a cell culture layer which is prepared by the following methods: culturing BALB3T3 cells by adopting a DMEM culture medium, performing cell adherent culture until 70-80 percent of a culture bottle is full, and irradiating; performing X-ray irradiation by taking 3000cGy as a radiation dose; culturing by using an improved F culture medium after irradiation; culturing for 8 hours, and obtaining the culture, namely the cell culture layer. The cell culture layer can be used for culturing human primary cancer cells or cancer stem cells. The invention also discloses improvement of cell types of the cell culture layer as well as a preparation method of the cell culture layer. Compared with J2 cells, the 3T3 cells for preparing the culture layer are easily obtained, and the cell concentration and state can be easily controlled in the culture process. When the cell culture layer is used for culturing the human primary cancer cells or cancer stem cells, growth of the primary cancer cells can be well promoted, and human cancer stem cells in a higher ratio are obtained (the number of CD44 positive cells is improved by about 80 percent).

The invention discloses a method for predicting a cancer risk based on hereditary gene mutation, and belongs to the field of medical statistics. The method can be used to construct an individualized primary cancer risk prediction quantitative model by collecting medical history information and saliva samples of family members of primary cancer patients. On the premise of using a molecular biological detection experiment technology, a strategy for accurately determining hereditary mutation of related genes from oral epithelial cells of a consultant and constructing a statistical prediction model in combination with family medical history data is provided. According to the prediction model provided by the invention, multiple cancer medical history information can be integrated, family structure information is fully utilized to correct and confirm deviation, and residual correlation among family members is analyzed. Simulation experiments show that the method can correctly find model parameters; results of real patient data fitting show that the method can reach the highest accuracy known at present on a cross validation data set, and the primary cancer risk of the first time can alsobe more stably predicted in an independent data set. The method can be used for constructing a cancer risk assessment system in genetic counseling, and can also be used for screening key gene loci.