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The Bcr-Abl oncoprotein plays a major role in the development and progression of chronic myeloid leukemia (CML). Several studies have suggested that the expression levels of Bcr-Abl are elevated at disease progression to blast crisis and that this plays a significant role in the achievement of drug ...
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The productivity of NS/0 myeloma batch cultures is often compromised by the premature induction of apoptosis, now established to be the predominant method of cell death during culture decline. Caspase proteases have recently been shown to play a major role in the transmission of signals for apoptoti...
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Chronic myeloid leukemia (CML) is a disease of the hematopoietic system, characterized by the presence of the Bcr-Abl oncoprotein. The main characteristics of this disease include adhesion independence, growth factor independence, and resistance to apoptosis. Loss or mutation of the tumor suppressor...
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Two flow cytometric apoptosis assays, the terminal deoxynucleotidyl transferase (TdT) assay and in situ nick translation (ISNT) assay, were assessed for their ability to quantitate drug-induced apoptosis in CLL lymphocytes. In contrast to HL60 cells, biotinylated dUTP could not be effectively incorp...
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Johne's disease or paratuberculosis in cattle is caused by Mycobacterium avium subsp. paratuberculosis (MAP). Although the stages of infection have been well described, very few virulence factors of MAP have been studied in detail. We aimed to study the localization and immunogenicity of member...
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Osteopontin has been identified as a marker of metastasis formation and its increased expression has been correlated with the malignancy of cancer. In this study we provide evidence that increased expression of osteopontin may also be associated with progression of Bcr-Abl-expressing leukaemia cells...
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Programmed cell death and apoptosis have now been recognised as biological phenomena which are of fundamental importance to the integrity of organisms. What may have evolved as an altruistic defence against pathogen invasion in simple organisms is now a major regulatory mechanism in the development ...
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A characteristic feature of chronic myeloid leukaemia (CML) is the inevitable advancement from a treatable chronic phase to a fatal, drug-resistant stage referred to as blast crisis. The molecular mechanisms responsible for this disease transition remain unknown. As increased expression of Bcr-Abl h...
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OBJECTIVE: Voluntary HIV testing and counseling (VTC) has been shown to reduce the incidence of HIV in cohabiting couples who now represent the majority of new infections in many African cities. Community and client perceptions of a 1-day voluntary testing and counseling program in Lusaka, Zambia, w...
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The treatment of acute myeloid leukaemia (AML) is often complicated by resistance to chemotherapeutic drugs. Many of the most effective drugs used to treat haematological malignancies target the nuclear enzyme topoisomerase II. Resistance to these drugs in vitro has been associated with quantitative...