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Osteosarcoma, a common malignancy in large dog breeds, typically metastasises from long bones to lungs and is usually fatal within 1 to 2 years of diagnosis. Better therapies are needed for canine patients and their human counterparts, a third of whom die within 5 years of diagnosis. We compared the in vitro sensitivity of canine osteosarcoma cells derived from 4 tumours to the currently used chemotherapy...
This study characterised the impact of active metazoan apoptotic proteases (caspases) on Saccharomyces cerevisiae viability. Expression of active caspase-3 or caspase-8 in yeast ruptured plasma and nuclear membranes and dramatically impaired clonogenic survival, but did not damage DNA. Deletion of the proposed yeast apoptosis regulators YCA1 or Aif1p did not affect the ability of human, insect or...
We have reconstituted the Apaf-1-activated apoptosis mechanism in Sacchromyces cerevisiae such that the presence of a constitutively active form of Apaf-1 together with both Caspase-9 and Caspase-3 results in yeast death. This system is a good model of the Apaf-1-activated pathway in mammalian cells: MIHA (XIAP/hILP), and to a lesser degree MIHB (c-IAP1/HIAP2) and MIHC (c-IAP-2/HIAP1) can inhibit...
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