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Data Presented at AACR
Sangamo scientists have engineered ZFNs specifically targeted to the glucocorticoid receptor (GR) gene. Data were presented demonstrating that treatment of T-cells engineered to kill glioblastoma cells with these ZFNs results in the knockout of the GR gene creating glucocorticoid-resistant T-cells. These zetakine-positive, GR-negative T-cells killed glioblastoma cells in vitro. In addition, data were presented from a mouse model of GBM demonstrating that the T-cells were capable of killing tumor cells in the presence of the glucocorticoid dexamethasone.
About Gliomas
Gliomas are the most common type of primary brain tumors; 20,000 cases are diagnosed and 14,000 glioma-related deaths occur annually in the United States. Glioblastoma multiforme (GBM), a type of glioma, is rapidly progressive and nearly uniformly lethal. Currently, malignant glioma is managed through a combination of chemotherapy, surgery and radiation. With modern combination therapy, the mean duration of survival has increased to 82 weeks, although 5-year survival rates have only increased from 3% to 6%. Approximately 80% of recurrent tumors arise from remnants of the original incompletely resected tumor. The median survival of recurrent glioblastoma multiforme patients that are eligible to be treated with re-resection is 36 weeks.
About Sangamo
Sangamo BioSciences, Inc. is focused on the research and development of
novel DNA-binding proteins for therapeutic gene regulation and
modification. The most advanced ZFP Therapeutic(TM) development program is
currently in Phase 2 clinical trials for evaluation of safety and clinical
effect in patients with diabetic neuropathy. Phase 1 clinical trials are
ongoing to evaluate a ZFP Therapeutic for peripheral artery disease. Other
therapeutic development programs are focused on stem cell mobilization,
ALS, cancer, HIV/AIDS, neuropathic
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