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Quercetin does not alter lipopolysaccharide-induced fever in rats.

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Fever is considered an important component of the acute phase response of the body in defence against invading organisms such as bacteria. Quercetin, an important representative of the flavonoid class, has been extensively studied as an anti-inflammatory agent. In the present study, we investigated

Differential sensitivity of leukemic and normal hematopoietic progenitors to the killing effect of hyperthermia and quercetin used in combination: role of heat-shock protein-70.

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Autologous bone-marrow transplantation (ABMT) is widely used in the treatment of acute leukemias where a matched sibling donor is not available for allogeneic transplantation. However, a major problem in ABMT is relapse, and ex vivo purging may be very important in preventing it. We show here that

Enhanced elimination of Ph+ chromosome cells in vitro by combined hyperthermia and other drugs (AZT, IFN-alpha, TNF, and quercetin): its application to autologous bone marrow transplantation for CML.

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Autologous bone marrow transplantation (ABMT) for chronic myelogenous leukemia (CML) is limited because of the difficulty in purging Ph chromosome positive cells from bone marrow cells (or peripheral blood stem cells). Combining hyperthermia with certain drugs that affect Ph+ cell growth in vivo and

The synergistic reversal effect of multidrug resistance by quercetin and hyperthermia in doxorubicin-resistant human myelogenous leukemia cells.

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OBJECTIVE This study aimed to evaluate the multidrug resistance (MDR) reversal activity of quercetin (Que) in combination with hyperthermia (HT) in human myelogenous leukemia cells K562/A. METHODS The cytotoxicity of Que alone and the effect of Que and HT to doxorubicin (Dox) cytotoxicity were

Quercetin and tamoxifen sensitize human melanoma cells to hyperthermia.

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Hyperthermia produces regression of human cancer. Because hyperthermia has produced only limited results, attention has focused on searching for substances able to sensitize tumour cells to the effects of hyperthermia. The flavonoid quercetin has been reported to be a hyperthermic sensitizer in

Quercetin and hyperthermia produce a synergistic inhibitory effect on primary human ovarian-cancer cells.

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Quercetin (from 0.1 muM to 10 muM) produced a dose dependent inhibition of colony formation of cells from 4 primary ovarian tumors expressing type II estrogen binding sites (type II EBS).The combined effects of quercetin ( 10 muM) and hyperthermia (42-degrees-C) result in a significant synergistic

[The effect of quercetin on the metabolic processes in combined body exposure to hypoxia and hyperthermia].

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Quercetin given in a dose of 100 mg/kg 3 hours before acute systemic hypoxia (10 ob%) combined with hyperthermia (43 degrees C) has been demonstrated to prevent a drastic activation of lipid peroxidation and arachidonic acid metabolism parallel to a marked decrease the activity of the body's

Quercetin and hyperthermia modulate cisplatin-induced DNA damage in tumor and normal tissues in vivo.

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Nephrotoxicity, hepatotoxicity, myelosuppression, and genotoxicity are the major limitation for the clinical use of cisplatin as an anti-tumoural drug. Hyperthermia enhances the clastogenicity of cisplatin. In addition, hyperthermia is a promising approach for cancer therapy because it not only

Quercetin sensitizes cells in a tumour-like low pH environment to hyperthermia.

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Quercetin has been shown to act as a hyperthermia sensitizer by inhibiting the synthesis of heat shock protein 70 (HSP70) in a variety of tumour cell lines. It is most effective under conditions of low pH. This study was designed to test the hypothesis that quercetin suppresses thermotolerance

Effects of the flavonoid drug quercetin on the response of human prostate tumours to hyperthermia in vitro and in vivo.

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Tumour hyperthermia, although potentially a powerful therapeutic agent and radiation sensitizer, is hindered by a number of considerations including inhomogeneous heating of deep seated tumours due to energy deposition and perfusion issues. One solution is to design hyperthermia sensitizers to

Quercetin and the growth of leukemic progenitors.

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The bioflavonoid quercetin (3, 3', 4', 5-7-pentahydroxyflavone) inhibits in a dose-dependent manner the in vitro growth of acute leukemias and enhances the anti-proliferative activity of cytosine arabinoside. Quercetin exerts a blocking action of cell transition from the G0/G1 to the S phase of the

The effect of cisplatin, etoposide and quercetin on Hsp72 expression.

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Heat shock protein 72 (Hsp72) belongs to a group of proteins referred to as molecular chaperones that protect normal and tumour cells against many stressors such as hyperthermia, some commonly used chemotherapeutics and other apoptotic stimuli. Our study was designed to determine whether heat shock

Quercetin, an inhibitor of lactate transport and a hyperthermic sensitizer of HeLa cells.

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Since cancer cells produce large amounts of lactate via aerobic glycolysis and since an acidic pH has been shown to selectively enhance the cytotoxic effects of hyperthermia, we are examining the influence of cell exposure to drugs which inhibit lactate transport and lower intracellular pH upon

Interactions between Cisplatin and Quercetin at Physiological and Hyperthermic Conditions on Cancer Cells In Vitro and In Vivo

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Quercetin (QU), a hyperthermic sensitizer, when combined with cisplatin (CP) affects tumor growth. To determine the effects of QU and CP and their interactions, multimodal treatment in vitro and in vivo models under physiological and hyperthermic conditions was performed. In vitro, different

Development of an XTT tetrazolium salt-based assay for detection of specific hyperthermia sensitizers in a high-flux screening programme.

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It is now possible to search for new drugs using high-throughput screening of chemical libraries accumulated over the past few years. To detect potential new hyperthermia sensitizers, we are screening for chemical inhibitors of thermotolerance. For the screening of a large chemical library, a rapid

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