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Sida 1 från 28 resultat
Photodynamic effects induced by meso-tetrakis[4-(carboxymethyleneoxy)phenyl] porphyrin on isolated Sarcoma 180 ascites mitochondria.
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Using mitochondria isolated from Sarcoma 180 ascites tumour in Swiss mice as a model system, we have evaluated the ability of a novel porphyrin, meso-tetrakis[4-(carboxymethyleneoxy)phenyl]porphyrin (H2T4CPP), to induce damage on photosensitization. Oxidative damage to mitochondria, one of the
Microfluoroscopic studies on porphyrins in Harder's gland and in tumors induced in it. 3. Histotopography of porphyrins and growth of transplanted sarcoma in Harder's gland in white rats.
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Disorders of porphyrin metabolism induced with 2-allyloxy-3-methylbenzamide in healthy rats and rats bearing transplantable Yoshida sarcoma.
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Quantitative time-resolved fluorescence spectrum of the cortical sarcoma and the adjacent normal tissue.
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The difference in time-resolved fluorescence spectrum between the cortical sarcoma and the adjacent normal tissue was studied in both experimental and theoretical ways. The Clinical data were obtained in vivo using a time-resolved fluorescence spectrometer employing a single fiber-optic probe for
Localization of meso-tetra(p-sulfophenyl)porphine in murine sarcoma virus-induced tumor-bearing mice.
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meso-Tetra(p-sulfophenyl)porphine (TPPS4) has been found to accumulate in the tumors of mice bearing a murine sarcoma virus-induced rhabdomyosarcoma to a greater degree than in all other tissues except for the kidney. Tumor to tissue ratios of from 3:1 (tumor to liver) to 9:1 (tumor to muscle) were
Radiation therapy combined with photofrin or 5-ALA: effect on Lewis sarcoma tumor lines implanted in mice. Preliminary results.
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OBJECTIVE
Ionizing irradiation is a well-established therapeutic modality for cancer. Photodynamic therapy (PDT), especially with 5-ALA and Photofrin, is highly effective in some tumor types. Chemical modifiers, so-called radiosensitizers, are used in order to increase the efficacy of radiotherapy.
Lipid peroxidation induced by a novel porphyrin plus light in isolated mitochondria: possible implications in photodynamic therapy.
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With a view to locate porphyrins for use in photodynamic therapy (PDT), the new modality of cancer treatment we have evaluated the ability of a novel water soluble porphyrin meso-tetrakis[4-(carboxymethyleneoxy)phenyl]porphyrin (T4CPP) to induce damage to mitochondria during photosensitization.
Fibre-laser IR luminescence diagnostics of malignant tumours using rare earth porphyrins.
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To eliminate the masking effect of the background luminescence of endogenic substances in biological tissues and to increase the luminescence contrast values of malignant tumours, sarcoma-implanted mice were administered with ytterbium porphyrins instead of free porphyrin radicals. This was followed
Characterization of intra-tumoral porphyrin following injection of hematoporphyrin derivative or its purified component.
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Photodynamic therapy (PDT) utilizes either hematoporphyrin derivative (Hpd) or a purified form of Hpd termed DHE, as photosensitizers for treatment of a variety of solid tumors in man. The reasons for long retention of these porphyrins in a wide range of histologically diverse tumors remain obscure.
Enhancement of ultrasonically induced cell damage by a gallium-porphyrin complex, ATX-70.
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Enhancement of ultrasonically induced cell damage by a gallium-porphyrin complex [ATX-70, 2,4-bis(1-decyloxyethyl)-Ga(III)-1,3,5,8- tetramethylporphryin-6,7-dipropionyl diaspartic acid] was investigated. The rate of damage to isolated sarcoma 180 cells in air-saturated suspension induced by 2 MHz
ALA-induced porphyrin formation and fluorescence in synovitis tissue In-vitro and in vivo studies.
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The synovial inflammatory process in rheumatoid arthritis (RA) is accompanied by massive tumor-like proliferation and activation of the connective stroma. These abnormal cells actively invade and destroy the peri-articular bone and cartilage at the margins of joints where synovium and bone are
DNA damage and cell cycle arrest induced by protoporphyrin IX in sarcoma 180 cells.
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BACKGROUND
Porphyrin derivatives have been widely used in photodynamic therapy as effective sensitizers. Protoporphyrin IX (PpIX), a well-known hematoporphyrin derivative component, shows great potential to enhance light induced tumor cell damage. However, PpIX alone could also exert anti-tumor
Sonodynamically induced cell damage and membrane lipid peroxidation by novel porphyrin derivative, DCPH-P-Na(I).
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BACKGROUND
Ultrasonically induced cell damage and active oxygen generation with a novel porphyrin derivative DCPH-P-Na(I), were compared in the same in vitro insonation setup.
METHODS
Sarcoma 180 cells suspended in air-saturated PBS were exposed to ultrasound at 2 MHz for up to 60 s in the presence
Porphyrin-like fluorescence in oral cancer: In vivo fluorescence spectral characterization of lesions by use of a near-ultraviolet excited autofluorescence diagnosis system and separation of fluorescent extracts by capillary electrophoresis.
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BACKGROUND
Red fluorescence from malignant tumors was observed in experimentally induced rat sarcoma by Policard (1924) and in ulcerated human oral carcinoma by Harris et al. (1987) by examination with ultraviolet (UV) irradiation. The objective of the current study was twofold: to examine in vivo
The Transcriptional Coactivator TAZ Is a Potent Mediator of Alveolar Rhabdomyosarcoma Tumorigenesis.
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Purpose: Alveolar rhabdomyosarcoma (aRMS) is a childhood soft tissue sarcoma driven by the signature PAX3-FOXO1 (P3F) fusion gene. Five-year survival for aRMS is <50%, with no improvement in over 4 decades. Although the transcriptional coactivator TAZ is oncogenic in carcinomas, the role of TAZ in
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