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Lymphocytes were originally thought to form the basis of a 'cancer immunosurveillance' process that protects immunocompetent hosts against primary tumour development, but this idea was largely abandoned when no differences in primary tumour development were found between athymic nude mice and syngeneic wild-type mice. However, subsequent observations that(More)
The molecular pathogenesis of meningiomas is poorly characterized. Loss of NF2 (merlin) expression has been reported in 30%-80% of all sporadic meningiomas. Recently, we found that loss of expression for a second Protein 4.1-family tumor suppressor. DAL-1, is also common. A biologically important role for progesterone receptor (PR) has also been proposed(More)
Autophagy is the regulated process cells use to recycle nonessential, redundant, or inefficient components and is an adaptive response during times of stress. In addition to its function in enabling the cell to gain vital nutrients in times of stress, autophagy can also be involved in elimination of intracellular microorganisms, tumor suppression, and(More)
The protozoan parasite Entamoeba histolytica causes amebic dysentery and amebic liver abscess, diseases associated with significant morbidity and mortality worldwide. E. histolytica infection appears to involve the initial attachment of amebic trophozoites to intestinal epithelial cells, followed by lysis of these cells and subsequent invasion into the(More)
We have previously demonstrated the induction of the early response transcription factor NGFI-A in castration-induced regression of the rat ventral prostate. We have developed an in vitro model to investigate the role of kinase signal transduction and early transcriptional regulation in apoptosis of androgen-sensitive prostate cells. Cell death was induced(More)
To model the initial pathogenic effects of Entamoeba histolytica trophozoites on intestinal epithelial cells, the interactions of E. histolytica HM1-IMSS trophozoites with polarized human intestinal Caco-2 cell monolayers grown on permeabilized filters were examined. Trophozoites, when incubated with the apical surface of the monolayers at 37 degrees C,(More)
INTRODUCTION It is not well understood whether the process of autophagy is accelerated or blocked in sepsis, and whether it is beneficial or harmful to the immune defense mechanism over a time course during sepsis. Our aim was to determine both the kinetics and the role of autophagy in sepsis. METHODS We examined autophagosome and autolysosome formation(More)
OBJECTIVE AND IMPORTANCE We report an unusual case of ecchordosis physaliphora of the thoracic spine. CLINICAL PRESENTATION The clinical presentation was one of disabling thoracic radicular pain without objective neurological deficit. The imaging characteristics of the lesion were those of a cyst containing aqueous fluid. There was no bone destruction. (More)
This peer-reviewed article can be downloaded, printed and distributed freely for any purposes (see copyright notice below). which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Introduction