All eyes on a phosphatase in glioma stem cells
Robert A Lindquist1,2,3, William A Weiss2,3,4,5
1Division of Pediatric Hematology/Oncology, University of California, San Francisco, San Francisco, CA.
The Journal of Experimental Medicine
|October 12, 2021
Abstract:
In this issue of JEM, Zhang et al. (2021. J. Exp. Med.https://doi.org/10.1084/jem.20202669) identify a dependency of glioma stem cells on tyrosine phosphatase activity of EYA2 and a new role for this phosphatase at the centrosome, offering a new therapeutic approach to target mitotic activity.
Insights
Glioma stem cells rely on the tyrosine phosphatase EYA2 for survival and proliferation. Targeting EYA2
Area of Science:
- Oncology
- Cell Biology
- Biochemistry
Background:
- Glioma stem cells (GSCs) are crucial for glioblastoma recurrence.
- Targeting GSCs is a key therapeutic challenge.
- The role of specific phosphatases in GSC biology is not fully understood.
Purpose of the Study:
- To investigate the role of EYA2 in glioma stem cell biology.
- To identify novel therapeutic targets for glioblastoma.
Main Methods:
- Analysis of EYA2 expression in patient-derived GSCs.
- Functional assays to assess the impact of EYA2 inhibition on GSCs.
- Immunofluorescence and biochemical studies to determine EYA2 localization and activity.
Main Results:
- Glioma stem cells exhibit a dependency on the tyrosine phosphatase activity of EYA2.
- EYA2 plays a critical role at the centrosome, influencing mitotic activity.
- Inhibition of EYA2 impairs GSC proliferation and survival.
Conclusions:
- EYA2 is a potential therapeutic target for glioblastoma.
- Targeting EYA2 offers a novel strategy to inhibit mitotic activity in GSCs.
