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The ameloblastic fibrosarcoma is a rare variety of neoplasm. Three new cases reported here occurred within preexistent benign odontogenic tumors (ameloblastic fibroma or fibro-odontoma). These large, osteolytic tumors, spreading to adjacent soft parts, recurred after surgical treatment in two cases.
We have constructed a series of interspecific somatic cell hybrids between the human osteoblast-like osteosarcoma, TE85, and a mouse fibrosarcoma, La-t-. In these whole-cell hybrids, we observed a 10-fold reduction of human liver/bone/kidney (L/B/K) alkaline phosphatase steady-state mRNA and
Lactoylglutathione lyase (GLO1), a ubiquitously expressed methylglyoxal (MG) detoxification enzyme, is implicated in the progression of various human malignant diseases. However, the role of GLO1 in the development or progression of murine fibrosarcoma is still unclear. We performed proteomic
The effects of single and multiple fractionated whole body hyperthermia (WBH) 41.5 degrees C on benzo(a) pyrene induced fibrosarcoma of mice were evaluated in terms of tumour response and systemic alterations of the host. While single exposure of WBH(S) 2 hrs, caused moderate inhibition of tumours
We have generated a series of transgenic mouse lines harboring the entire human germ cell alkaline phosphatase (GCAP) gene linked to progressively longer sequences of flanking DNA. A 450-bp promoter sequence directs the expression of GCAP to the intestine and endothelial cells, while a 5' sequence
A self-calibrated fluorescent probe Lyso-Phos has synthesized followed by a straightforward synthetic pathway. Lyso-Phos acts as an indicator for lysosomal phosphatase. Its photophysical property including cellular imaging was described. Lyso-Phos showed ratiometric UV-Vis- absorption changes from
Regulation of prostaglandin endoperoxide synthase-2 (PGHS-2) mRNA levels by serine-threonine phosphatases was examined in murine fibrosarcoma methylcholanthrene-101 cells. Okadaic acid (OA), a serine-threonine phosphatase inhibitor, induced PGE2 production and a significant increase in PGHS-2
The tumor-suppressor gene PTEN (phosphatase and tensin homolog) is frequently inactivated in different types of human tumors. Less is known about the involvement of the homologous gene Pten in animal model systems of cancer. By sequencing one of the introns of rat Pten, we found an informative
Repeated injections of mitomycin C-treated T2 fibrosarcoma cells into tumor-sensitized mice cause regression of a secondary tumor graft and more than 90% of the mice are cured. In the data presented here, an enhancement of the cytolytic cell-mediated activities measured in vitro against the specific
Immunostaining of normal human fibroblasts with a monoclonal antibody (MAb) (V22AC12) revealed typical cytoplasmic arrays of vimentin filaments in both mitotic and interphase cells. In human A8387 fibrosarcoma cells and SV40-virus-transformed human fibroblasts, the same antibody showed positivity
We have separated subpopulations of macrophages from an immunogenic fibrosarcoma by the technique of unit gravity velocity sedimentation. The activation state of these subpopulations was determined by measurement of the Fc receptor avidity of adherent cells, and by their 5' nucleotidase and acid
Phospholipase D (PLD) has been implicated in vesicle trafficking in the Golgi and hence secretion. In this study, we show that the secretion of matrix metalloproteinase-9 (MMP-9) from HT 1080 human fibrosarcoma cells was stimulated by phorbol 12-myristate 13-acetate in a time- and dose-dependent
Okadaic acid (OA) is a novel, non-phorbol ester-type tumor promoter, which is a specific inhibitor of protein phosphatases 1 and 2A. Treatment of human fibrosarcoma HT-1080 cells with OA resulted in induction of collagenase and stromelysin-1 mRNA levels, while mRNA levels for tissue inhibitor of