Researchers Identify Immune-suppressing Target in Glioblastoma
Researchers at The University of Texas MD Anderson Cancer Center have identified a tenacious subset of immune macrophages that thwart treatment of glioblastoma with anti-PD-1 checkpoint blockade, elevating a new potential target for treating the almost uniformly lethal brain tumor.
Their findings identify macrophages that express high levels of CD73, a surface enzyme that’s a vital piece of an immunosuppressive molecular pathway. The strong presence of the CD73 macrophages was unique to glioblastoma among five tumor types analyzed by the researchers.
“By studying the immune microenvironments across tumor types, we’ve identified a rational combination therapy for glioblastoma,” says first author Sangeeta Goswami, MD, PhD, assistant professor of Genitourinary Medical Oncology.
Glioblastoma Immunotherapy Clinical Trial Planned
After establishing the cells’ presence in human tumors and correlating them with decreased survival, the researchers took their hypothesis to a mouse model of glioblastoma. They found combining anti-PD-1 and anti-CTLA-4 immunotherapies in CD73 knockout mice stifled tumor growth and increased survival.
71st Annual Meeting of the Southern Neurosurgical Society
Feb. 26-29, 2020; Richmond, Va.
3rd Annual Mayo Clinic Advances and Innovations in Complex Neuroscience Patient Care: Brain and Spine 2020
Feb. 27-29, 2020; Sedona, Ariz.
Multidisciplinary Neuro-Oncology Symposium: Updates in Medical and Surgical Management of Brain Tumors
March 6-7, 2020; Orlando, Fla.
5th Annual Safety in Spine Surgery Summit
March 12-13, 2020; New York
EANS Research Course & Young Neurosurgeons Meeting
March 26-28, 2020; Zurich
Be the first to reply using the above form.