Adult onset Langerhans cell histiocytosis (LCH) is a rare disorder. Its clinical features have been well described in children, however remain poorly defined in adults. Optimal treatment strategy is still under debate. We have encountered two cases of adult onset LCH, which obtained a durable disease control by combination chemotherapy using prednisone, vinblastine and 6-mercaptopurine. Herein,...

The synergistic antitumor action of 6-mercaptopurine (6-MP) and 6-methylmercaptopurine ribonucleoside (MMPR) is confirmed with Sarcoma 180 ascites cells. Striking decreases are seen in the adenine nucleotide concentrations in cells incubated for 1 hr with this drug combination, and lesser effects are seen on the guanine nucleotide concentrations. Still greater decreases in adenine nucleotide le...

The surface parameter of nanoparticles such as hydrophobicity and a hydrophilicity on protein structure and function is very important. In this study, conformational changes of glucose oxidase (GOx) in the mercaptopurine: GNPs and 11-mercaptoundecanoic acid: GNPs as a hydrophobic and a hydrophilic GNPs surface was investigated by various spectroscopic techniques, including: UV-Vis absorption, f...