camptothecin/põletik

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Structure-Based Drug Design and Identification of H2O-Soluble and Low Toxic Hexacyclic Camptothecin Derivatives with Improved Efficacy in Cancer and Lethal Inflammation Models in Vivo.

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Camptothecin (CPT) has been shown to block disassembly of the topoisomerase I (Topo I)/DNA cleavable complex. However, the poor aqueous solubility, intrinsic instability, and severe toxicity of CPTs have limited their clinical applications. Herein, we report the design and synthesis of H2O-soluble

A cDNA-microarray analysis of camptothecin resistance in glioblastoma cell lines.

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Chemotherapy, as generally available, is of a limited value in curing malignant brain tumors (gliomas), which often develop resistance to drugs, becoming completely unresponsive to any standard therapeutic approach. Camptothecins, a family of topoisomerase I inhibitor drugs, represent a new

Gene expression time-series analysis of camptothecin effects in U87-MG and DBTRG-05 glioblastoma cell lines.

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BACKGROUND The clinical efficacy of camptothecin (CPT), a drug specifically targeting topoisomerase I (TopoI), is under evaluation for the treatment of malignant gliomas. Due to the high unresponsiveness of these tumours to chemotherapy, it would be very important to study the signalling network

Camptothecin suppresses expression of matrix metalloproteinase-9 and vascular endothelial growth factor in DU145 cells through PI3K/Akt-mediated inhibition of NF-κB activity and Nrf2-dependent induction of HO-1 expression.

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Though camptothecin (CPT) possesses potent anti-inflammatory, immunomodulatory, anticancerous, and antiproliferative effects, little is known about the mechanism by which CPT regulates the expression of matrix metalloproteinase-9 (MMP-9) and vascular endothelial growth factor (VEGF). Therefore, the

ATM-activated autotaxin (ATX) propagates inflammation and DNA damage in lung epithelial cells; a new mode of action for silica-induced DNA damage?

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Silica exposure is a common risk factor for lung cancer. It has been claimed that key elements in cancer development are activation of inflammatory cells that indirectly induce DNA damage and proliferative stimuli in respiratory epithelial cells. We studied DNA damage induced by silica particles in

Induction of apoptosis in the human Leukemic U937 cell line by Kaempferia parviflora Wall.ex.Baker extract and effects of paclitaxel and camptothecin.

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Kaempferia parviflora Wall.ex.Baker is a Thai medicinal herb that has high antioxidant and anti-inflammatory activities. Apoptotic effects of the herbal extract alone and in combination with chemotherapeutic drugs, paclitaxel and camptothecin, were here studied in the human promonocytic leukemic

Clinical pharmacokinetics of the new oral camptothecin gimatecan: the inter-patient variability is related to alpha1-acid glycoprotein plasma levels.

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OBJECTIVE To determine the pharmacokinetics of gimatecan, a camptothecin with a lipophilic substitution in position 7, given orally to patients participating in the phase I study. METHODS Pharmacokinetics was evaluated in 78 patients after oral daily dose for 5 days a week for 1, 2 or 3 weeks by

Camptothecin promotes the production of nitric oxide that triggers subsequent S-nitrosoproteome-mediated signaling cascades in endothelial cells.

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Camptothecin (CPT) has been used for colorectal cancer therapy. At low concentration of 10-9M, CPT modulates endothelial nitric oxide production following the phosphorylation of LKB1 Ser431, AMPK-α Thr172, eNOS Ser633 and Ser1177. Elevated nitric oxide (NO) was observed by FA-OMe fluorescent probe.

The effect of inhibiting topoisomerase I and II on the anti-apoptotic response associated with pro-inflammatory crystals of calcium pyrophosphate dihydrate in human neutrophils.

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OBJECTIVE To investigate the ability of various topoisomerase I and II inhibitors to reverse the pro-survival effects of calcium pyrophosphate dihydrate (CPPD) crystals on human neutrophils, thereby identifying potential agents that may promote the resolution of neutrophil accumulation typical of

Liver injury in septic mice were suppressed by a camptothecin-bile acid conjugate via inhibiting NF-κB signaling pathway

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Background and objectives: Sepsis is a life-threatening organ dysfunction syndrome arising from uncontrolled inflammatory responses. Liver injury is a crucial factor for the prognosis of sepsis. Camptothecins (CPTs) have been reported to

Protein kinase Cη activates NF-κB in response to camptothecin-induced DNA damage.

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The nuclear factor κB (NF-κB) family of transcription factors participates in the regulation of genes involved in innate- and adaptive-immune responses, cell death and inflammation. The involvement of the Protein kinase C (PKC) family in the regulation of NF-κB in inflammation and immune-related

Directional modification of chrysin for exerting apoptosis and enhancing significantly anti-cancer effects of 10-hydroxy camptothecin.

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Chrysin, one of natural flavonoid compounds, has recently been found to possess anti-inflammatory, antiallergic and anticancer properties. To increase its anticancer effects, 5 chrysin derivates were synthesized on the base of DNA intercalator structure. The inhibiting effects of chrysin and its

Using oxidant susceptibility of thiol stabilized nanoparticles to develop an inflammation triggered drug release system.

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Inflammation is a complex and dynamic defensive cellular approach to safeguard against deleterious agents; however, an overexpression of such responses frequently results in the development of a number of devastating diseases, such as atherosclerosis, cancer, inflammatory bowel, Alzheimer's and

Camptothecin-loaded films for the prevention of postsurgical adhesions.

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OBJECTIVE The purpose of this work was to investigate the local application of camptothecin (CPT), a drug with anti-inflammatory, antiproliferative and antiangiogenic properties, as an inhibitor of surgical adhesion formation in rats. METHODS The anti-adhesion properties of CPT were investigated

A comparison of the effects of topical treatment of calcipotriol, camptothecin, clobetasol and tazarotene on an imiquimod-induced psoriasis-like mouse model.

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The interleukin-23/interleukin 17A (IL-23/IL-17A) cytokine axis plays a critical role in the pathogenesis of psoriasis. In this study, we report the effects of topical calcipotriol, camptothecin, clobetasol and tazarotene on the treatment of imiquimod (IMQ)-induced psoriasis-like inflammation, the

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