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St. Jude Children’s Research Hospital

262 Danny Thomas Place
Memphis, TN 38105
United States

Project Team

Ependymoma is a lethal pediatric brain tumor that is still treated by surgery and radiation. When tumors recur, which is often, patients have limited treatment options and often receive additional radiation further worsening neurologic side effects. Novel, effective and less-toxic therapies are desperately needed for these patients. Ependymomas that arise in the forebrain are frequently driven by an oncogene that joins two proteins, C11ORF95 and RELA (denoted as C11ORF95-RELA fusion).

DIPG remains an incurable brain tumor since current therapies, including radiation and chemotherapy, cannot destroy all DIPGs cells. Immunotherapy holds the promise to improve outcomes for children with DIPG since immune cells kill tumor cells through different mechanisms than radiation and chemotherapy. Among different forms of immunotherapy, an immunotherapy consisting of immune cells known as T cells as garnered significant excitement.

Childhood cancers are caused by genetic mutations that lead to changes in proteins that are essential for normal human development. The protein MYCN is the cause of many of the most aggressive pediatric cancers, including high-risk neuroblastoma and medulloblastoma. One of the holy grails of pediatric cancer drug development is finding a way to directly target MYCN in patient tumors, but this has been elusive. To address this major unmet need, we have developed an international team of scientists with complementary expertise to attack this problem with innovative new technologies.

St. Jude Children’s Research Hospital

 

Despite much progress in understanding the genetic basis and mechanism of leukemogenesis of high risk leukemia there are a limited number of targeted therapies available for the treatment of high risk patients. The goal of this project is to leverage new screening technologies for the identification of candidate drugs and druggable gene targets for the treatment of high risk leukemia patients.

Diffuse midline glioma (DMG) is an uncurable pediatric brain tumor with extremely limited treatment options. The Krenciute Lab at St. Jude is working to develop new types of treatments known as immunotherapy for children with DMGs, in which the patient’s own immune system is harnessed to fight the cancer. Specifically, we are interested in developing chimeric antigen receptor (CAR) T cells, a form of immunotherapy where a patient’s T cells are re-engineered to better target and attack the cancer cell.

This study is about finding new ways to fight cancer, especially in children with a cancer called neuroblastoma. Neuroblastoma is tricky to treat because the cancer cells can become resistant to chemotherapy, meaning the drugs don't work as well over time. The cancer cells can switch between two different states: one where they are sensitive to drugs and one where usual cancer treatments do not work well. Here, I am proposing to understand how these cells switch between these states, which allows them to survive and avoid our best treatments.

Children with solid tumors have poor overall survival. Further, the treatments used for these diseases are very toxic. One particularly difficult to treat pediatric solid tumor is called neuroblastoma (NB). Children with neuroblastoma are treated with very toxic therapies, and even so, many of them will not be cured. In addition, while large-scale studies have identified the specific proteins that NB cells depend on for growth, these proteins are especially hard to target with traditional drugs. This limits our ability to treat NB effectively.

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