Abstract
We have reported that Leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1) can improve the chemosensitivity in U251 cells. However, the underlying mechanisms how LRIG1 improves the chemosensitivity remain unknown. In this study, we reported that LRIG1 can improve the chemosensitivity through the inhibition of B cell lymphoma 2 (BCL-2) and manganese superoxide dismutase (MnSOD). In addition, we showed that the expression level of LRIG1 was significantly negatively correlated with BCL-2 and MnSOD expression in glioma. Our research demonstrated that overexpression of LRIG1 can enhance the chemosensitivity. BCL-2 and MnSOD were inhibited in LRIG1 overexpressing cells. On the other hand, when BCL-2 and MnSOD were knocked down, the chemosensitivity of U251 cells decreased, and the effect of LRIG1 in regulating chemosensitivity was compromised. For the first time, our results showed that LRIG1 can enhance chemosensitivity in glioblastoma by inhibition of BCL-2 and MnSOD.
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Acknowledgment
This work was supported by the National Natural Science Foundation of China (No. 30973072, 81372683), the Fundamental Research Funds for the Central Universities (No. 201130202020001, T2011302008, 224222), Neural tumor research project (csno-2013-MSD 004).
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Jianjun Ding and Baohui Liu have contributed equally to this work.
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Ding, J., Liu, B., He, Y. et al. LRIG1 Improves Chemosensitivity Through Inhibition of BCL-2 and MnSOD in Glioblastoma. Cell Biochem Biophys 71, 27–33 (2015). https://doi.org/10.1007/s12013-014-0139-6
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DOI: https://doi.org/10.1007/s12013-014-0139-6