Topoisomerase II (Top2) is a nuclear enzyme involved in several metabolic processes of DNA. Chemotherapy agents that poison Top2 are known to induce persistent protein-mediated DNA double strand breaks (DSB). In this report, by using knock down experiments, we demonstrated that Top2alpha was largely responsible for the induction of gammaH2AX and cytotoxicity by the Top2 poisons idarubicin and e...

a treatise on the modern methods in the diagnosis and treatment of poisoning, written in German by Professor Leschke of the Berlin University. Both in India and Europe cases of poisoning, suicidal and homicidal, are on the increase. The ever-increasing use of poisons in industry, the increasing number of suicides and homicides with poisons due to world-wide social, political and economic upheav...

BACKGROUND The science of toxicology has a long history and been highly valued in Islamic countries. Numerous scientists were the expert in this field, particularly during the third and fourth centuries. Through reading such literature and gaining the experience of the scientists, one can use such valuable information to promote this science. METHODS In this article, different sources of trad...

Several naturally occurring dietary polyphenols with chemopreventive or anticancer properties are topoisomerase II poisons. To identify additional phytochemicals that enhance topoisomerase II-mediated DNA cleavage, a library of 341 Mediterranean plant extracts was screened for activity against human topoisomerase IIα. An extract from Phillyrea latifolia L., a member of the olive tree family, di...

Mitotic spindle poisons (e.g., Taxol and vinblastine), used as chemotherapy drugs, inhibit mitotic spindle function, activate the mitotic spindle checkpoint, arrest cells in mitosis, and then cause cell death by mechanisms that are poorly understood. By expression cloning, we identified a truncated version of human TRIP1 (also known as S8, hSug1), an AAA (ATPases associated with diverse cellula...