612 Result(s)
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Article
Intérêt de la cholangiographie à la Royer sous laparoscopie
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Article
Les lésions gastriques par sondes d'aspiration
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Article
Uptake, metabolism, and cytotoxicity of doxorubicin in human Ewing's sarcoma and rhabdomyosarcoma cells
Uptake, metabolism, and cytotoxicity of doxorubicin (DOX) in human Ewing's sarcoma (ES) and rhabdomyosarcoma (RS) cells were examined. Cellular uptake of DOX was determined by liquid scintillation spectrometry...
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Article
Retardation of rat sciatic nerve regeneration after local application of minute doses of vincristine
The effect of vincristine on regeneration of rat sural and tibial nerves following a crush lesion of the sciatic nerve was studied in the pinch test. Vincristine locally applied through an osmotic minipump at ...
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Article
Gene therapeutic approach to primary and metastatic brain tumors: I. CD44 variant pre-RNA alternative splicing as a CEPT control element
Our laboratory and others have shown alternative splicing of up to ten exons at a discrete extracellular site to be primarily responsible for the generation of CD44 variant (CD44v) isoforms. Based on clear dif...
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Gene therapeutic approaches to primary and metastatic brain tumors: II. Ribozyme-mediated suppression of CD44 expression
Glioblastomas are highly invasive intracerebral tumors that are known to express the CD44 cell adhesion molecule. Human glioma cell adhesion and invasionin vitro may in part be mediated by the interaction of CD44...
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Article
Analysis of the cellular origin of hepatocellular carcinoma by p53 genotype
The polymerase chain reaction andHaeIII enzymatic digestion were used to study the seventh exon of the p53 gene in 29 primary and recurrent hepatomas in paraffin-embedded samples from 11 patients. The mutation ra...
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Article
Expression of TrkA, TrkB and TrkC in human neuroblastomas
There is considerable interest in the role of the TRK family of neurotrophin receptors in regulating the survival, growth and differentiation of normal and neoplastic nerve cells. Indeed, there is increasing e...
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Identification and functional analysis of multiple murine myeloperoxidase (MPO) promoters and comparison with the human MPO promoter region
Myeloperoxidase (MPO) is an important component of the oxidative antibacterial defense system of granulocytes. Mammalian MPO gene expression has been most extensively studied in human and murine cells. Transcr...
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Clonality analysis of hematopoietic cell lineages in acute myeloid leukemia and translocation (8;21): only myeloid cells are part of the malignant clone
Bone marrow from six patients with acute myeloid leukemia (AML) and t(8;21) (q22;q22) or a variant t(8;13;21) was studied by simultaneous analysis of cell morphology and karyotype. Combination of May–Grünwald–...
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Article
Reconstruction and expression of chimeric anti-HBx antibody inEscherichia coli
The variable regions of murine monoclonal anti-HBx immunoglobulin and the constant region of human antibody were cloned by reverse transcriptpolymerase chain reaction (RT-PCR). The heavy-chain and light-chain ...
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Article
Development of an interphase fluorescent in situ hybridization (FISH) test to detect t(8;21) in AML patients
The translocation (8;21) is a chromosome abnormality associated with acute myeloid leukemia (AML). As a consequence of the translocation the AML1(CBFA2) gene in the 21q22 region is fused to the ETO(CDR,MTG8) gene...
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Article
Case-control study of oral cancer in Shenyang, Northeastern China
To investigate the risk factors of oral cancer, a hospital-based case-control study was conducted from March 1989 to September 1995 in Shenyang, Liaoning Province, China.
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Article
The modulating effect of PSC 833, cyclosporin A, verapamil and genistein on in vitro cytotoxicity and intracellular content of daunorubicin in childhood acute lymphoblastic leukemia
Resistance to anthracyclines is related to a poor prognosis in childhood acute lymphoblastic leukemia (ALL). Resistance to this class of drugs may (partly) be reversed by modulating agents, as has been demonst...
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Article
Invasion and metastasis of liver cancer: expression of intercellular adhesion molecule 1
To study the relationship between intercellular adhesion molecule 1 (ICAM-1) and liver cancer metastasis and to find predicting factors that could indicate the growth and metastasis of liver cancer. Methods: ICA...
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Cytogenetic studies of infant acute lymphoblastic leukemia: poor prognosis of infants with t(4;11) – a report of the Children’s Cancer Group
Infants less than 1 year of age at diagnosis of acute lymphoblastic leukemia (ALL) have a poor prognosis, which has been attributed primarily to a breakpoint in chromosomal band 11q23 or the MLL gene. Most infant...
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Article
Analysis of aberrant methylation of the VHL gene by transgenes, monochromosome transfer, and cell fusion
Several tumor suppressor genes were shown to be inactivated by a process involving aberrant de novo methylation of their GC-rich promoters which is usually associated with transcriptional repression. The mechanis...
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Article
Regulation of the Wilms' tumour suppressor protein transcriptional activation domain
The Wilms' tumour suppressor protein WT1 contains a transcriptional regulatory domain that can either activate or repress transcription depending upon its cellular environment. The mechanistic basis for this d...
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Relationship between the intracellular daunorubicin concentration, expression of major vault protein/lung resistance protein and resistance to anthracyclines in childhood acute lymphoblastic leukemia
In vitro resistance to anthracyclines is related to a poor prognosis in childhood acute lymphoblastic leukemia (ALL), but the underlying mechanisms are poorly understood. Using flow cytometry, we studied the cont...
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Article
Molecular dissection of TrkA signal transduction pathways mediating differentiation in human neuroblastoma cells
Activation of the neurotrophin receptor TrkA by its ligand nerve growth factor (NGF) initiates a cascade of signaling events leading to neuronal differentiation in vitro and might play an important role in the di...