نتایج جستجو برای: cytotoxicity mechanism
تعداد نتایج: 605553 فیلتر نتایج به سال:
The National Cancer Institute (NCI) Human Tumor Cell Line Anti-Cancer Drug Screen has evaluated the cytotoxicity profiles of a large number of synthetic compounds, natural products, and plant extracts on 60 different cell lines. The data for each compound/extract can be assessed for similarity of cytotoxicity pattern, relative to a given test compound, using an algorithm called COMPARE. In appl...
Phenotypic screens allow the identification of small molecules with promising anticancer activity, but the difficulty in characterizing the mechanism of action of these compounds in human cells often undermines their value as drug leads. Here, we used a loss-of-function genetic screen in human haploid KBM7 cells to discover the mechanism of action of the anticancer natural product ophiobolin A ...
Herpes simplex virus thymidine kinase (HSV-tk)/ganciclovir (GCV) viral-directed enzyme prodrug gene therapy causes potent, tumor-selective cytotoxicity in animal models in which HSV-tk gene transduction is limited to a minority of tumor cells. The passage of toxic molecules from HSV-tk+ cells to neighboring HSV-tk- cells during GCV therapy is one mechanism that may account for this "bystander" ...
DNA-DNA crosslinks are the lethal cellular mechanism of bifunctional alkylating agent cytotoxicity. Novobiocin, an inhibitor of DNA topoisomerase II, impairs eukaryotic DNA repair of alkylating agent adducts and may increase the number of adducts and their resultant cytotoxicity in malignant cells. The effect of novobiocin on clonogenic survival and DNA crosslinking due to cisplatin (cDDP) and ...
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