Quantitative measurement of mast cell degranulation using a novel flow cytometric annexin-V binding assay.
Authors:Demo SD, Masuda E, Rossi AB, Throndset BT, Gerard AL, Chan EH, Armstrong RJ, Fox BP, Lorens JB, Payan DG, Scheller RH, Fisher JM
Journal:Cytometry
PubMed ID:10404150
'BACKGROUND: Mast cells are primary mediators of allergic inflammation. Antigen-mediated crosslinking of their cell surface immunoglobulin E (IgE) receptors results in degranulation and the release of proinflammatory mediators including histamine, tumor necrosis factor-alpha, and leukotrienes. METHODS: Mast cells were stimulated to degranulate by using either IgE crosslinking or ionophore treatment. ... More
Determination of intracellular organelles implicated in daunorubicin cytoplasmic sequestration in multidrug-resistant MCF-7 cells using fluorescence microscopy image analysis.
Authors:Bour-Dill C, Gramain MP, Merlin JL, Marchal S, Guillemin F
Journal:Cytometry
PubMed ID:10655559
'BACKGROUND: Anthracycline resistance is known to be mediated by P-glycoprotein (P-gp) or multidrug-resistance related protein (MRP) as well as intracellular sequestration of drugs. METHODS: The resistance phenotype of doxorubicin-selected MCF-7(DXR) human breast adenocarcinoma cell line was characterized by cellular and nuclear daunorubicin efflux, P-gp and MRP expression and apoptosis induction. ... More
In situ assessment of cell viability.
Authors:Yang H, Acker J, Chen A, McGann L
Journal:Cell Transplant
PubMed ID:9786064
'Cryobiological studies of tissues often require the simultaneous assessment of tissue structure and in situ cellular function. Localization of damage during cryopreservation occurs as a consequence of tissue structure and morphology and as a result of biophysical constraints imposed by diffusion and heat transfer. This study used five experimental model ... More
Higher order Rab programming in phagolysosome biogenesis.
Authors:Roberts EA, Chua J, Kyei GB, Deretic V
Journal:J Cell Biol
PubMed ID:16982798
'Phagosomes offer kinetically and morphologically tractable organelles to dissect the control of phagolysosome biogenesis by Rab GTPases. Model phagosomes harboring latex beads undergo a coordinated Rab5-Rab7 exchange, which is akin to the process of endosomal Rab conversion, the control mechanisms of which are unknown. In the process of blocking phagosomal ... More
In vitro and in vivo photocytotoxicity of boron dipyrromethene derivatives for photodynamic therapy.
Authors:Lim SH, Thivierge C, Nowak-Sliwinska P, Han J, van den Bergh H, Wagnières G, Burgess K, Lee HB,
Journal:J Med Chem
PubMed ID:20199028
To understand the effects of substitution patterns on photosensitizing the ability of boron dipyrromethene (BODIPY), two structural variations that either investigate the effectiveness of various iodinated derivatives to maximize the ... More