air spaces and absence of hyperplastic pneumocytes (type II) with bizarre shapes usually noted in cases of bleomycin-induced interstitial pneumonitis.10 The pathologic changes described in our patient are different from those described for bleomycin hypersensitivity pneumonitis and appear to be a classic bleomycin intestitial pneumonitis.11 This case illustrates that life threatening bleomycin ...

Electrotherapy was investigated for its ability to increase the responsiveness of murine tumors to bleomycin treatment. Mice bearing fibrosarcoma were treated with 250 micrograms bleomycin and then with 0.6 mA direct current (DC) for 60 min. Antitumor effects of single treatments were moderate with bleomycin, but significant with electrotherapy. Combined treatment with bleomycin followed by ele...

Fibrosis of the lungs is final phase many lung illnesses. Its characterized by excessive matrix production leading to normal architecture destruction and eventually death. CoQ10 an essential constituent membrane oxidoreductase System. It intracellularly localized antioxidant
 
 enzyme that endogenously synthesized in humans. protects cellular components from free radical-induced oxida...

Effects of o-phenanthroline, 2,2'-dipyridyl and neocuproine, which form stable complexes preferentially with Fe(II), Fe(II) and specifically with Cu(I), respectively, on the inhibitory activity of bleomycin against DNA synthesis of rat ascites hepatoma AH66 cells were examined. The inhibitory activity of metal-free bleomycin was suppressed in the presence of o-phenanthroline or 2,2'-dipyridyl, ...

The mechanism of bleomycin-induced pulmonary fibrosis is not yet clear. Recent studies have shown that alveolar macrophages (AM) can be stimulated by bleomycin in vitro releasing inflammatory cytokines, suggesting that the interaction of bleomycin with AM is an important step in the drug-induced fibrotic process. Bleomycin is known to bind DNA and generate oxygen radicals through complexation w...

A serious limitation in the use of the DNA-cleaving, antitumoral-antibiotic, bleomycin during chemotherapy is pulmonary toxicity. Lung injury induced by bleomycin is characterized by an increased deposition of interstitial extracellular matrix proteins in the alveolar wall that compromises respiratory function. Several drugs have been tested in animal models to prevent the pulmonary toxicity of...

Bleomycin is used in combination with other antineoplastic agents to effectively treat lymphomas, testicular carcinomas, and squamous cell carcinomas of the cervix, head, and neck. However, resistance to bleomycin remains a persistent limitation in exploiting the full therapeutic benefit of the drug with other types of cancers. Previously, we documented that the Saccharomyces cerevisiae L-carni...

Background: There is conflicting data about the increased risk of pulmonary toxicity when granulocyte-stimulating factor (G-CSF) is given in combination with bleomycin. No clear consensus for management of patients with Hodgkin lymphoma (HL) who require G-CSF support exists. Our objective was to evaluate whether there is an increase in pulmonary toxicity in patients who receive bleomycin and G-...

BACKGROUND Bleomycin (BLM) is an anticancer antibiotic used in many cancer regimens. Its utility is limited by systemic toxicity and dose-dependent pneumonitis able to progress to lung fibrosis. The latter can affect up to nearly 50% of the total patient population, out of which 3% will die. We propose to improve BLM delivery by tethering it to an efficient delivery vector. Adenovirus (Ad) dode...

OBJECTIVE The β-glucans are long-chain polymers of glucose, which comprise the fungal cell wall, stimulate cells of the innate immune system, enhance disturbed epithelization, and have antioxidant effects. Oxidative stress has been implicated in the pathogenesis of bleomycin-induced lung fibrosis and various antioxidant agents have been studied for prevention and treatment of the disease. In th...