The chemotherapeutic agent bleomycin induces pulmonary fibrosis through the generation of reactive oxygen species (ROS), which are thought to contribute to cellular damage and pulmonary injury. We hypothesized that bleomycin activates oxidative stress response pathways and regulates cellular glutathione (GSH). Bovine pulmonary artery endothelial cells exposed to bleomycin exhibit growth arrest ...

background: the aim of this study was to investigate the effect of methanolic extract of achillea millefolium l. (mea) on the antiproliferative activity of bleomycin on human prostate cancer and normal skin cells. materials and methods: human prostate cancer cell (du-145) and human non-malignant fibroblast cell (hfff2) were treated with mea at various concentrations ( 20, 100, 500, 1000 and 200...

In an attempt to develop better combination therapies for use with local radiation, the interaction between bleomycin and hyperthermia +/- radiation was studied in the FSaIIC tumor system. In cells exposed in vitro to bleomycin at 37 degrees C and at pH 7.40, the drug was substantially more toxic toward normally oxygenated than hypoxic cells. At hyperthermic temperatures (42 degrees or 43 degre...

The association of exposure to bleomycin with the development of scleroderma-like cutaneous abnormalities has been reported. We experienced a case of scleroderma involving the hands, feet, and forearms after bleomycin chemotherapy. The present report supports the possible causal relation of bleomycin with scleroderma. Regarding the widespread use of bleomycin, this complication is thought to be...

BACKGROUND Venous malformations (VMs) are common vascular anomalies; 40% are found in the head and neck. Percutaneous sclerotherapy is 1 treatment of choice. METHODS In all, 17 patients with facial VMs were treated by percutaneous sclerotherapy using alcohol and individually matched to lesions treated with bleomycin. Treatment details and outcomes were compared. The average numbers of session...

Cellular resistance to bleomycin is important in the treatment of neoplasms. However, the mechanism of bleomycin resistance has been not well investigated. The resistance may be attributed to alterations of membrane transport, binding to DNA or other cell components, an inactivating enzyme, and/or a DNA repair system. MIYAKI et al. have examined the binding of [11C]bleomycin to DNA in bleomycin...

A cDNA encoding human bleomycin hydrolase, a member of the cysteine proteinase family of proteins, has been cloned from a human brain cDNA library. The isolated cDNA contains an open reading frame coding for a polypeptide of 456 amino acids that contains all of the structural features characteristic of cysteine proteinases, including the cysteine, histidine, and asparagine residues that are ess...

The aerobic oxidation of Co(II)bleomycin bound to calf thymus DNA has been investigated in relation to the mechanism of reaction in solution in the absence of DNA. Kinetics of dioxygenation of the Co(II) complex were followed by spectrophotometric and electron spin resonance spectroscopy as well as dioxygen analysis. The reaction is slower than when carried out in solution; its rate is inversel...

From June 1992 to March 1993, a group of patients suffering from different types of warts were treated with intralesional injections of bleomycin sulfate. This study reviews the literature concerning this modality of treatment and the pathophysiology and immunohistopathology of warts and options for treatment. In this prospective study, a combination of a I mg/mL solution of bleomycin in...