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30-Aug-2013
Many cancer therapies function by activating proteins like Caspase-3 (CASP3) that promote cell death. Several forms of cancer develop resistance to these drugs by down regulating CASP3 through an unknown mechanism. In the absence of CASP3, tumor cells produce another cell death promoting protein CASP7, but it is rendered inactive by the X-linked inhibitor of apoptosis protein (XIAP). In the Journal of Clinical Investigation, Po-Huang Liang and colleagues at Academia Sinica identify a compound (I-Lys) that disrupts the interaction between CASP7 and XIAP. Release of CASP7 from this complex in drug resistant cancer cells activated cell death and reduced malignancies. Furthermore, no adverse side effects were observed in non-tumor cells treated with the drug. In the accompanying commentary, Gregory Gores from the Mayo Clinic explains that these results are promising for combatting drug resistant cancers, but more work needs to be done to establish if I-Lys will be safe and beneficial for human use.
EMBO, EMBC and the National Science Council of Taiwan sign cooperation agreement
New ways of global scientific interaction have been created following a cooperation agreement between EMBO, its inter-governmental funding body, the European Molecular Biology Conference (EMBC), and the National Science Council of Taiwan (NSC). The agreement will allow Taiwanese scientists ... more
Genetic model identifies primary myelofibrosis outcomes
A group of investigators from Mayo Clinic and multiple academic research centers in Italy have identified a genetic model for predicting outcomes in patients with primary myelofibrosis who are 70 years or younger and candidates for stem cell transplant to treat their disease. The group's fi ... more
Mayo Clinic researchers map prostate cancer relapse
A team of Mayo Clinic researchers has, for the first time, successfully mapped patterns of prostate cancer recurrence, following surgery. Using C-11 choline PET imaging and multiparametric MRI, researchers found an anatomically diverse pattern of recurrence, which may help optimize treatmen ... more
Gene therapy for metabolic liver diseases shows promise in pigs
With a shortage of donor organs, Mayo Clinic is exploring therapeutic strategies for patients with debilitating liver diseases. Researchers are testing a new approach to correct metabolic disorders without a whole organ transplant. The medical research study tested gene therapy in pigs suff ... more
Chemo, radiation, surgery combo boosts survival for pancreatic cancer patients with veins involved
In roughly one-third of pancreatic cancer patients, tumors have grown around the pancreas to encompass critical blood vessels. Conventional wisdom has long held that surgery to remove the tumors is rarely an option, and life expectancies are usually measured in months. Mayo Clinic, teaming ... more
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