0000000000414265

AUTHOR

Ming-qing Du

showing 3 related works from this author

Activating mutations in human c-Ha-ras-1 protooncogene induced by stereoisomeric fjord-region benzo[c]chrysene diol-epoxides.

1995

The mutagenicity of fjord-region benzo[c]chrysene diol-epoxide (BcCDE) stereoisomers((+) anti-BcCDE, (-)anti-BcCDE, (+)syn-BcCDE, and (-)syn-BcCDE) was studied in a forward-mutation system. pEC plasmid containing the human c-Ha-ras-1 proto-oncogene was reacted in vitro with each optically active isomer separately and transfected into NIH/3T3 cells. Morphologically transformed foci were cloned, and DNA obtained from these foci was tested for the presence of Ha-ras-1 sequence by Southern blot analysis. A total of 50 transformed foci (11-14 for each diastereomer) were generated. To determine the nature of mutations responsible for activating the proto-oncogene, regions of the gene likely to co…

Cancer ResearchGuanineMolecular Sequence DataGene mutationBiologymedicine.disease_causePolymerase Chain ReactionProto-Oncogene MasChryseneschemistry.chemical_compoundMicemedicineAnimalsHumansPoint MutationTransversionMolecular BiologyGeneSouthern blotMutationBase SequenceMutagenicity TestsPoint mutationNucleic Acid HybridizationStereoisomerism3T3 CellsMolecular biologyGenes raschemistryGene Expression RegulationMutationOligonucleotide ProbesDNAMutagensMolecular carcinogenesis
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Homeobox NKX2-3 promotes marginal-zone lymphomagenesis by activating B-cell receptor signalling and shaping lymphocyte dynamics

2016

NKX2 homeobox family proteins have a role in cancer development. Here we show that NKX2-3 is overexpressed in tumour cells from a subset of patients with marginal-zone lymphomas, but not with other B-cell malignancies. While Nkx2-3-deficient mice exhibit the absence of marginal-zone B cells, transgenic mice with expression of NKX2-3 in B cells show marginal-zone expansion that leads to the development of tumours, faithfully recapitulating the principal clinical and biological features of human marginal-zone lymphomas. NKX2-3 induces B-cell receptor signalling by phosphorylating Lyn/Syk kinases, which in turn activate multiple integrins (LFA-1, VLA-4), adhesion molecules (ICAM-1, MadCAM-1) a…

0301 basic medicineLymphoid TissueScienceB-cell receptorReceptors Antigen B-CellGeneral Physics and AstronomySykKaplan-Meier EstimateBiologyArticleGeneral Biochemistry Genetics and Molecular BiologyNKX2-303 medical and health sciencesChemokine receptorstomatognathic systemLYNhemic and lymphatic diseasesmedicineAnimalsHumansSyk KinaseLymphocytesPhosphorylationB cellHomeodomain ProteinsMice KnockoutCàncer -- Aspectes molecularsMultidisciplinaryCell adhesion moleculeKinaseGene Expression ProfilingQLymphoma B-Cell Marginal ZoneGeneral Chemistryrespiratory system3. Good healthMice Inbred C57BL030104 developmental biologymedicine.anatomical_structureembryonic structurescardiovascular systemCancer researchCell Adhesion MoleculesProteïnesSignal TransductionTranscription FactorsNature Communications
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MALT1 is deregulated by both chromosomal translocation and amplification in B-cell non-Hodgkin lymphoma

2003

The MALT1 gene was identified through its involvement in t(11;18)(q21;q21), seen in 30% of cases of mucosa-associated lymphoid tissue (MALT) lymphoma. Here, we show that deregulated MALT1 expression may occur in B-cell non-Hodgkin lymphoma (B-NHL) of various histologic subtypes either through translocation to the immunoglobulin heavy chain (IGH) locus or by genomic amplification. First, 2 cases, one case of MALT lymphoma and another of aggressive marginal zone lymphoma (MZL) with t(14;18)(q32;q21), cytogenetically identical to the translocation involving BCL2, were shown by fluorescence in situ hybridization (FISH) to involve MALT1, which lies about 5 Mb centromeric of BCL2. Molecular cloni…

MaleLymphoma B-CellImmunologyBiologyBiochemistryTranslocation Geneticimmune system diseaseshemic and lymphatic diseasesGene duplicationmedicineHumansRNA NeoplasmAgedChromosomes Human Pair 14medicine.diagnostic_testGene Expression ProfilingGene AmplificationMALT lymphomaLymphoma B-Cell Marginal ZoneCell BiologyHematologyMiddle Agedmedicine.diseaseMolecular biologyGenes bcl-2Neoplasm ProteinsGene Expression Regulation NeoplasticGene expression profilingMALT1Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 ProteinCaspasesB-Cell Non-Hodgkin LymphomaImmunoglobulin heavy chainFemaleChromosomes Human Pair 18Comparative genomic hybridizationFluorescence in situ hybridizationBlood
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