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128 results about "Blood tumor" patented technology

Cancers, Tumors & Blood. Acute Lymphoblastic Leukemia (ALL) Acute lymphoblastic leukemia (ALL), also called acute lymphocytic leukemia, is a cancer of the white blood cells. In ALL, the bone marrow (the soft, spongy center of bones) produces too many lymphocytes, a type of white blood cells that do not mature as they should.

Chimeric antigen acceptor of target BCMA (B cell maturation antigen) and application of chimeric antigen acceptor

The invention relates to a chimeric antigen acceptor of a target BCMA (B cell maturation antigen). The chimeric antigen acceptor comprises an extracellular identification region, a hinge region, a transmembrane region and an intracellular signal region, wherein the extracellular identification region has a BCMA resisting nanometer antibody sequence, and the BCMA resisting nanometer antibody sequence is a heavy-chain variable region sequence combining with BCMA and from alpacas. More specifically, the BCMA resisting nanometer antibody sequence is BCMA monoclonal antibody B1 or B65, the amino acid sequence of the B1 is as shown in SEQID NO.1, and the amino acid sequence of the B65 is as shown in SEQID NO.2. According to the chimeric antigen acceptor disclosed by the invention, compared witha traditional mouse-derived SCFV or humanized SCFV, the nanometer antibody from the alpacas is used, and has small molecule quantity and immunogenicity, the possibility that CAR-T cells prepared on the base of the nanometer antibody produce HAMA effects in vivo is smaller, the remaining time of the CAR-T cells in vivo can be longer, the CAR-T cells pass through BCMA protein on the surfaces of target tumor cells and activate signal channels at the downstream part of T cells, the capacity for killing tumor cells having BCMA target points is given to the T cells, and BCMA positive blood tumor canbe efficiently and specifically treated.
Owner:上海科棋药业科技有限公司

Method for establishing PDX (Patient Derived Xenograft) model of human blood tumor

The invention discloses a method for establishing a PDX (Patient Derived Xenograft) model of human blood tumor. The method comprises the steps of extracting a blood tumor cell of a patient, adding rabbit anti-human thymocyte immunoglobulin ATG (Anti-Thymocyte Globulin) and patient autologous serum, mixing, incubating and after completing the incubation, re-suspending the obtained cell and inoculating in a mouse; and feeding the inoculated mouse with CsA (Cyclosporine A) and lasting for 5-10 days starting from 2 days before the inoculation of the blood tumor cell. The method disclosed by the invention has the beneficial effects that a novel highly immunodeficient NCG mouse independently developed in China is firstly adopted to establish a human leukemia PDX model; by orally taking human thymocyte immunoglobulin pretreatment sample combined with the cyclosporine for a long term, donor-derived T cells are removed and inhibited; and by combining the toxic effect of the ATG on lymphocytes with the functional blocking effect of the CsA on T lymphocytes, the immune function of the T lymphocytes can be persistently inhibited and the success rate of PDX modeling of the blood tumor is significantly improved.
Owner:JIANGSU PROVINCIAL HOSPITAL OF TCM

Bispecific chimeric antigen receptor for treating hematologic tumor complicated with HIV infection, gene thereof, and construction method and application of gene

ActiveCN111196858AAchieve the effect of treating two diseases at the same timeEasy to removeVirusesAntibody mimetics/scaffoldsSingle-Chain AntibodiesAntiendomysial antibodies
The invention discloses a construction method and an application of a recombinant gene of a bispecific chimeric antigen receptor for treating HIV infection complicated with blood tumor. The chimeric antigen receptor is formed by sequentially connecting a signal peptide, an HIV gp120 antigen specific single-chain antibody and an anti-CD19 single-chain antibody and then sequentially connecting witha CD28 transmembrane region, a CD28 intracellular structural domain (ICD), a 4-1BB costimulatory structural domain and a CD3zeta intracellular signal transduction structural domain in series, or the chimeric antigen receptor comprises: first CAR composed of the signal peptide, the chimeric antigen receptor, the HIV gp120 antigen specific single-chain antibody, the CD28 transmembrane region, the CD28-ICD, the anti-CD19 single-chain antibody, the CD8 transmembrane region, the CD28-ICD, the 4-1BB costimulatory structural domain and the CD3zeta intracellular signal transduction domain; and secondCAR composed of and the signal peptide, the anti-CD19 single-chain antibody, the CD8 transmembrane region in parallel, connecting the CD28-ICD, the 4-1BB costimulatory structural domain and the CD3zeta intracellular signal transduction domain, wherein the first CAR and the second CAR are sequentially connected in parallel.
Owner:WUHAN UNIV OF SCI & TECH

Chimeric antigen receptor capable of secreting bispecific antibody as well as expression vector and application thereof

The invention discloses a chimeric antigen receptor capable of secreting a bispecific antibody as well as an expression vector and an application thereof, which belong to the field of tumor immune drugs. The chimeric antigen receptor comprises a signal peptide, a CD19-targeting single-chain antibody, a lengthened CD8 alpha hinge region, a transmembrane region, a costimulatory factor, an intracellular signal peptide, a P2A connecting peptide, an IL2 signal peptide, a CD20-targeting single-chain antibody, a CD3-targeting single-chain antibody and a tag protein which are connected in sequence. The chimeric antigen receptor is the bispecific antibody capable of specifically targeting CD19 positive tumor cells and secreting targeting CD20 and targeting CD3 at the same time, the non-conductive Tcells can be targeted and activated, so that the tumor antigen CD20 is targeted, and the purpose that the CAR-T cells effectively kill malignant blood tumor cells of a B cell line in vivo is achieved. Meanwhile, the T cells of the chimeric antigen receptor can prevent CD19 positive tumor cells with low abundance expression from generating immune escape, so that the recurrence risk of malignant blood tumors of a B cell line is reduced.
Owner:华夏源细胞工程集团股份有限公司

Blood tumor data acquisition and in-hospital and out-of-hospital integrated diagnosis and treatment support system and method

The invention discloses a blood tumor data acquisition and in-hospital and out-of-hospital integrated diagnosis and treatment support system. The blood tumor data acquisition and in-hospital and out-of-hospital integrated diagnosis and treatment support system comprises a cloud follow-up visit platform, a medical management end system, a data transmission system and a user end system, wherein thecloud follow-up visit platform is connected with the medical management system and the client system through the data transmission system; and the medical management system is connected with the client system through the data transmission system. The blood tumor data acquisition and in-hospital and out-of-hospital integrated diagnosis and treatment support system has the advantages that the systemestablishes a data analysis system based on index data to form a rigorous diagnosis and treatment scheme; doctor-patient joint interaction is achieved, and the doctor-patient trust degree is improved; the intelligent reminding service effectively enhances the diagnosis and treatment executive force; professional follow-up visit management effectively improves data collection efficiency, accuracyand availability, promotes national blood disease prevention and management quality, and improves national health quality of China; and change rules of patients and diseases are comprehensively understood through data, and experience is summarized, and a treatment scheme is adjusted or improved, and the treatment effect and extrahospital life quality of the patients are improved, and development of modern medicine of the hematology department is promoted.
Owner:SHANGHAI BEISHENG MEDICAL EQUIP
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