• Catalina-Elena Cioc University of Medicine and Pharmacy Craiova, Romania
  • Edmond Barcan University of Medicine and Pharmacy Craiova, Romania
  • Stefan Artene University of Medicine and Pharmacy Craiova



glioblastoma, ?-arrestin, transfection, overexpression, temozolomide


Beta-arrestins (B-arr) are a group of proteins which play an important role in the GPCR regulation. They have been shown to facilitate cancer progression in many organs. Although the correlation between malignant gliomas and the effect of B-arr is not solidified, several studies presented an interesting effect when temozolomide treatment is intersected with B-arr 2 overexpression in cancer cells. In our study, we transfected the U-343MGa cell line with B-arr 2, in order to observe its effect in concordance with temolozomide treatment. The cells were observed at three different time points, 24h, 48h and 72h, regarding their cell viability. Initially, at the 24h time point, the B-arr 2 overexpression produced a mild cytotoxic effect, but at the 48h time point a sudden increase in cell proliferation was recorded. The 72h time point left us with another slight drop in cell proliferation. The interaction with different doses of TMZ produced a variety of results, no apparent correlation being observed. In conclusion, the effect of B-arr 2 transfection in malignant gliomas is an important matter to be further studied, in order to better understand the underlying processes of cancer progression.


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