117 results about "Acute myeloid leukemias" patented technology

The invention discloses a relevant gene combination, a primer, a probe and application used for detecting a chemotherapeutic effect on acute myelogenous leukemia. The gene combination comprises four gene combinations closely relevant to pharmacotherapy of the acute myelogenous leukemia: medicament metabolism phase I enzyme gene CYP3A5, medicament metabolism phase II enzyme genes NAT2 and GSTO2, and medicament transport protein gene OATP1B1; and the gene combination comprises the following SNP loci: the locus rs776746 of the gene CYP3A5, the locus rs1799931 of the gene NAT2, the locus rs156697 of the gene GSTO2, and the locus rs4149056 of the gene OATP1B1. A method is performed by hybridizing a specific primer and probes which are subjected to fluorescence marks of different colors with target gene fragments in a nucleic acid sample after PCR amplification. The treatment effect of a leukemia medicament is detected and analyzed by mononucleotide extension technology so as to direct clinical medicament application, reduce a toxic or side effect of the medicament application for a patient, and increase a curative effect.

The invention relates to novel application of Apatinib or pharmaceutically acceptable salts, ester and solvent compounds thereof for preparing a medicine for treating acute myelogenous leukemia. The Apatinib restrains acute myelogenous leukemia cell amplification and induces apoptosis of cells by activating the mitochondrion-mediated endogenesis apoptosis way and lowering the VEGFR2 phosphorylation level and the PLCgama/PKC/S6 signal channel of the downstream thereof, and finally the effect of treating acute myelogenous leukemia is obtained; Apatinib or pharmaceutically acceptable salts, esterand solvent compounds thereof have no toxic or side effect on normal marrow mononuclear cells, the safety is good, the theoretical basis is provided for researching the treatment strategy for acute myelogenous leukemia, and an embedded point is supplied to preparation of the medicine for treating the acute myelogenous leukemia.

The invention discloses application of miRNA to diagnosis and treatment of acute myelogenous leukemia. The miRNA is miRNA-1277. Whether a patient has the acute myelogenous leukemia or not can be diagnosed through detecting the expression level of the miRNA-1277. Experiments prove that the expression level of the miRNA-1277 in the patient with the acute myelogenous leukemia is obviously lower than that of healthy people. On the basis, the miRNA-1277 can also be used for preparing medicine for treating the acute myelogenous leukemia. The sensitivity and the specificity of the diagnosis of the acute myelogenous leukemia are greatly improved; meanwhile, a new target point is provided for gene treatment of the acute myelogenous leukemia.

The invention provides an N-subsituted aromatic ring-2-amino pyrimidine compound and applications. The compound includes an optical isomer or a pharmaceutically acceptable salt. A test proves that theN-subsituted aromatic ring-2-amino pyrimidine having a novel framework has excellent CHK1 protein inhibition activity and has significant in-vitro proliferation inhibition effect on MV4-11, Z138 andthe like blood tumor cell strains; meanwhile, the compound also has excellent oral delivery effect. Further in-vivo efficacy test proves that the compound has great treatment effect on human acute myelogenous leukemia MV-4-11 Ba1b/c mouse transplantation tumor and has great treatment effect on tumor. The compound is reasonable in synthesis route design, is prepared from feasible raw materials andgentle reaction conditions, is high in yield in every step and is simple in preparation operation, and is suitable in industrial production. The N-subsituted aromatic ring-2-amino pyrimidine compoundhas a structural general formula as the specification.

The invention discloses a long non-coding RNA for treating acute myelogenous leukemia. Particularly, the long non-coding RNA is LncRNA EPB41L4A-AS1. The invention discloses an application of the LncRNA EPB41L4A-AS1 to preparation of a product for treating the acute myelogenous leukemia. The invention simultaneously discloses a pharmaceutical composition for treating the acute myelogenous leukemiaand a kit for evaluating the LncRNA EPB41L4A-AS1. The pharmaceutical composition disclosed by the invention has a relatively good inhibitory effect on the acute myelogenous leukemia, and has importantreference significance and practical significance in treatment of the acute myelogenous leukemia. The kit disclosed by the invention can serve as one of methods for evaluating the expression level ofthe LncRNA EPB41L4A-AS1 and has relatively good measurement and guide effects on the LncRNA EPB41L4A-AS1 when used as the pharmaceutical composition.

This invention discloses fusion protein of diphtherin and GM-CSF, its coding gene, and its application. The fusion protein is selected from: (a) the protein shown in SEQ ID No.2; (b) the protein derived from SEQ ID No.2 by substituting, deleting and/or adding one or more amino acid residues, which can kill acute myeloid leukemia cells. The fusion protein can kill target cells, and has a high expression level.

The invention discloses novel application of an ankyrin repeat domain-containing 13A gene and/or a protein encoded by the same. An acute myeloid leukemia (AML) diagnosis and prognosis related molecular marker is screened to obtain an ankyrin repeat domain-containing 13A gene(ANKRD13A) closely related to AML patient prognosis; the high expression of ANKRD13A in the body of an AML patient warns poorprognosis; the ANKRD13A can be used as an independent factor for influencing the prognosis of the AML patient; the ANKRD13A is related to the FAB typing and the cytogenetics risk stratification of the AML patient; and the ANKRD13A may participate in the disease progression of AML through a variety of pathways. The ANKRD13A can be used for preparing a therapeutic drug or a prognosis detection reagent for the acute myeloid leukemia.

The invention discloses construction and preparation of double-target chimeric antigen receptor T (CAR-T) of FLT3-NKG2D. CAR of the invention belongs to double-target second-generation CAR, and has the functions of overcoming tumor immune escape and enhancing the specific recognition and killing of tumor cells. By combination of the double-target CAR-T and gilteritinib, the treatment dilemma of refractory acute myeloid leukemia of FLT3<mut+> can be effectively solved, and a new treatment strategy is provided for treatment of acute myeloid leukemia.

The invention belongs to the technical field of medicine, and discloses a 1,1a,6,6a-tetrahydrocycloprop[a]indene-1-amine derivative which is represented as formula (I) and a preparation method and applications thereof. The 1,1a,6,6a-tetrahydrocycloprop[a]indene-1-amine derivatives provided by the invention has good inhibitory activity against LSD1, has good selectivity for homologous enzymes suchas monoamine oxidase and LSD2, and is expected to develop into therapeutic medicine for diseases such as acute myeloid leukemia.

The invention discloses an acute myelogenous leukemia drug sensitivity related gene classifier constructed by a machine learning algorithm. The acute myelogenous leukemia drug sensitivity related gene classifier is characterized by comprising sample clustering and gene screening; the sample clustering is to respectively cluster the patient sensitivity of 24 drugs by using a K-means clustering algorithm; the gene screening is to carry out gene screening and verification on methylation and transcriptome data of 24 drugs by utilizing a feature selection model according to the clustering result of a patient. According to the method, the final screening of the target gene is realized by adopting logistic regression, ridge regression, RFECV-SVM and RFECV-RF algorithms. Parameter optimization is carried out on logistic regression and ridge regression by using four-fold layered cross validation, and a threshold value of feature selection is set as an average value of feature weights, that is, features with the feature weights larger than the average value are reserved. The RFECV algorithm uses different learning models SVM and RF for screening.

Methods for the diagnosis of leukemias, and more specifically AML, such as MLL-AF9 AML, in a subject, based on the assessment of the expression or activity of one or more of the genes listed in Tables 1 and 2 are disclosed. The use of antibodies or antigen-binding fragments thereof that bind to one or more of proteins showing preferential expression at the cell surface of AML leukemic cells for treating AML is also disclosed.

The invention belongs to the technical field of leukemia diagnosis, particularly relates to a detection method and application of a scaRNA9 gene, and particularly relates to application of the scaRNA9 gene as a new marker for AML diagnosis. According to the invention, risk stratification or prognosis evaluation is carried out on patients with acute myelogenous leukemia through the expression level of scaRNA9, and a theoretical basis is provided for the design and selection of personalized medical schemes.

The invention relates to a medicine for treating acute myelogenous leukemia and application thereof. The medicine for treating acute myelogenous leukemia comprises an NHE1 inhibitor HMA. The invention creatively finds that the NHE1 inhibitor HMA can significantly inhibit the progress of acute myelogenous leukemia, is used as a medicine for treating acute myelogenous leukemia, and enriches the treatment strategy of acute myelogenous leukemia. The invention also relates to a pharmaceutical composition for treating acute myelogenous leukemia, the pharmaceutical composition comprises HMA and a chemotherapeutic drug, and the invention proves that the combination of HMA and the chemotherapeutic drug can enhance the killing effect of the chemotherapeutic drug on AML cells on one hand; on the other hand, the dosage of chemotherapeutic drugs can be reduced, and toxic and side effects of the chemotherapeutic drugs on human bodies are relieved.

The invention belongs to the technical field of medical biology, and particularly relates to an application of an induction method for improving the capacity of mesenchymal stem cells in promoting acute myeloid leukemia cell differentiation. The mesenchymal stem cells provided by the invention are human-derived umbilical cord mesenchymal stem cells (UC-MSCs), and mesenchymal stem cells (pre-activeMSCs) obtained after pretreatment and activation by cytokine bone morphogenetic protein 6 (BMP6); the pre-active MSCs can efficiently induce the acute myeloid leukemia cell differentiation, and the capacity is achieved by changing the expression quantity of IL-6 and IDO of the UC-MSCs; and the mesenchymal stem cells are allogeneic mesenchymal stem cells, the secretion capacity of the mesenchymalstem cells can be remarkably changed after the mesenchymal stem cells are treated and activated by the BMP6, and the AML resistance of the mesenchymal stem cells is remarkably enhanced. Compared withchemotherapy, mesenchymal stem cell transplantation has lower toxic and side effects, has low immunogenicity and meets clinical requirements. According to the method, the capacity of the MSCs in inducing the acute myelogenous leukemia cell differentiation is improved by adopting the method of pretreating and activating the MSCs through the BMP6, and the method can be applied to differentiation treatment of acute myelogenous leukemia.

The invention discloses a 2-furanyl-quinoline-4-formamide compound and application thereof, and the structural formula of the 2-furanyl-quinoline-4-formamide compound is shown as a formula (4) in thespecification, wherein R1 is selected from H, halogen or C1-C3 alkyl, R2 is selected from H or C1-C3 alkyl, and R3 is selected from C1-C3 alkyl, C3-C5 cycloalkyl, C1-C3 alkoxy, C1-C3 haloalkyl or halogen. The 2-furanyl-quinoline-4-formamide compound designed and synthesized by the invention is a novel IDH1/R132H inhibitor, and is suitable for drug development taking IDH1/R132H as a target point, and the obtained drug can be used for treating malignant tumors such as glioma, acute myeloid leukemia, soft osteosarcoma, bile duct cancer, acute lymphatic leukemia and the like.

The invention relates to a 2-aryl-4-(1H-pyrazol-3-yl)pyridine LSD1/HDAC double-target inhibitor and a preparation method thereof, and application of the 2-aryl-4-(1H-pyrazol-3-yl)pyridine LSD1/HDAC double-target inhibitor in preparation of antitumor drugs, belonging to the technical field of medicinal chemistry. The inhibitor has a general formula as described in the specification. In the general formula, R1 is preferably selected from CH3, OCH3 and H; and R2 is preferably F and H. The inhibitor disclosed by the invention has relatively strong inhibitory activity on both LSD1 and HDAC, and the IC50 value of the inhibitor on HDAC1 is less than 5 nM, and the inhibitor is remarkably superior to a positive drug SAHA. The LSD1/HDAC double-target inhibitor has good in-vitro anti-tumor activity on human acute myelogenous leukemia THP-1 cell strains, is superior to a positive drug SAHA, provides a basis for research and development of LSD1/HDAC double-target inhibitor drugs, and can be used as a candidate or a lead compound for further development for development of anti-tumor treatment drugs.

The invention relates to use of Ruxolitinib in preparation of a drug for treating M2 type acute myeloid leukemia with t (8; 21) chromosome translocation, and the in-vitro effective concentration is 1 * 10<-6>-1 *10<-5>M. Drug Ruxolitinib is not only itself has the effect of inhibiting growth and inducing apoptosis on leukemia cell Kasumi-1, and enhances the drug sensitivity of the leukemia cell Kasumi-1 on rsTRAI by up-regulation of mRNA and protein expression level of DR4, up-regulation of cell apoptosis protein Bax expression, activation of apoptosis protein caspase-3 and inhibition of NF-kappa B protein activity. The drug can be used for treating the M2 type acute myeloid leukemia with t (8; 21) chromosome translocation, the new drug for treating the M2 type acute myeloid leukemia with t (8; 21) chromosome translocation is provided, and a new approach for overcoming TRAIL resistance in leukemia cells can be provided.

The invention relates to a novel application of gamma-secretase activated protein gene and/or protein coded by gamma-secretase activated protein gene. According to the application disclosed by the invention, by screening acute myelogenous leukemia (AML) prognosis related molecular markers, the screened gamma-secretase activated protein gene (GSAP) is closely related to the prognosis of acute myelogenous leukemia patients; the high expression of the GSAP prompts that the prognosis of the acute myelogenous leukemia patient is poor; the GSAP is related to FAB typing and cytogenetics risk stratification of an acute myelogenous leukemia patient; and the GSAP may participate in the disease progress of acute myelogenous leukemia through various ways such as PI3K-AKT, TLR and the like. The GSAP is used for preparing a treatment drug or a diagnostic reagent and a prognosis detection reagent for acute myelogenous leukemia.

The invention discloses a small peptide ERpeptide and an application of the small peptide ERpeptide in acute myeloid leukemia. The small peptide ERpetide is coded by a long-chain non-coding RNA gene ASH1LAS1 shown as SEQ ID NO: 1, and the amino acid sequence of the small peptide ERpetide is shown as SEQ ID NO: 2. Researches show that the ERpetide has potential clinical effects of serving as a classifier of the acute myeloid leukemia and indicating treatment alleviation, and the ASH1L-AS1/ERpetide can serve as a diagnostic marker of the acute myeloid leukemia; meanwhile, ASH1L-AS1/ERpetide has a potential regulation and control effect on occurrence and development of acute myeloid leukemia, is a potential target for treating acute myeloid leukemia, provides a new accurate treatment strategy and genetic resources for targeted treatment of acute myeloid leukemia, and has important theoretical significance and application value.

The invention discloses a 4-methylpyrrole substituted indolone derivative, and a preparation method and medical application thereof. The invention relates to the field of medicinal chemistry. Comparedwith a compound 10d discovered in the earlier stage, the 4-methylpyrrole substituted indolone derivative disclosed by the invention has better chemical stability, higher selectivity on FLT3-ITD, moreideal pharmacokinetic characteristics and stronger in-vivo anti-tumor activity, and particularly has lower effective dose for treating acute myeloid leukemia. Under the same dosage, the tumor inhibition rate is obviously superior to that of compounds 10d and sunitinib, and the drug resistance is not easy to generate.

The invention relates to the field of pharmaceutical applications, and in particular relates to a novel application of anlotinib in preparation of a drug for treating acute myeloid leukemia, wherein the novel application is an application of the anlotinib or a pharmaceutically acceptable salt, ester, and solvate thereof in the preparation of the drug for preventing and/or treating the acute myeloid leukemia. The anlotinib regulates and controls an SEDT1A/AKT axis, mediates downstream DNA damage repair related gene expression, inhibits the growth of acute myeloid leukemia (with MLL rearrangement) cells, induces the apoptosis, and changes the cell cycle ratio.

The present invention provides a method of screening for a therapeutic or prophylactic drug for acute myeloid leukemia or myelodysplastic syndrome, comprising the following steps:

• • (a) a step of forming colonies of hematopoietic progenitor cells induced from pluripotent stem (iPS) cells produced from non-T cells in blood mononuclear cells isolated from myelodysplastic syndrome patients, in the presence of a test substance and in the absence of the test substance, and
  • (b) a step of selecting the test substance as a candidate for a therapeutic or prophylactic drug for acute myeloid leukemia or myelodysplastic syndrome and the like when the colony number in the presence of the test substance increases from the colony number in the absence of the test substance.

The invention relates to application of miR-31-5p in acute myelogenous leukemia, in particular to application of a product for detecting the miR-31-5p in preparation of a reagent, a chip or a kit for auxiliary diagnosis of subjects suffering from acute myelogenous leukemia (AML) and/or prognosis of the lifetime of the subjects. The invention also relates to an application of the miR-31 initial/precursor miRNA (prime/pre-miR-31) and/or the miR-31 mature miRNA (miR-31-5p) in preparation of a medicine for treating AML (acute myeloid leukemia). The miR-31-5p is introduced into cells through a gene transduction method, so bone marrow AML cells and leukemia stem cells (AML-LSC) can be induced to die, and the cytotoxicity of the chemotherapeutic drug cytarabine is enhanced; by expressing the miR-31-5p, the growth of AML cells and AML-LSC cells can be inhibited, and the life of animals can be prolonged. The disclosure provides a new method for diagnosis and prognosis evaluation of AML, and also provides a gene therapy drug for preparing AML.