Abstract
Glioblastoma (GBM) is the most aggressive and malignant glioma. Currently, a few modern surgical and medical therapeutic strategies are applied for GBM, but the prognosis of GBM patients remains poor, and the average median survival time is only 14.6 months. In this study, we for the first time found that the levels of miR-320a were decreased in both GBM patients and glioma cells. In GBM patients, elevated miR-320a expression was associated with better prognosis. In addition, insulin-like growth factor-1 receptor (IGF-1R) was identified as a key direct target of miR-320a. Overexpression of miR-320a led to the inhibition of cell proliferation, migration, invasion, as well as tumorigenesis by targeting IGF-1R, and thus regulated the signaling pathways downstream, including PI3K/AKT and MAPK/ERK. In tumor orthotopic xenograft experiment, the tumor growth was depressed and survival time of mice model was prolonged when miR-320a was overexpressed. Therefore, our results suggested that miR-320a could suppress tumor development and growth by targeting IGF-1R, and miR-320a might serve as a new effective target for anti-cancer therapy strategies.
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Vredenburgh JJ, Desjardins A, Reardon DA, Friedman HS. Experience with irinotecan for the treatment of malignant glioma. Neuro Oncol. 2009;11(1):80–91. doi:10.1215/15228517-2008-075.
Van Meir EG, Hadjipanayis CG, Norden AD, Shu HK, Wen PY, Olson JJ. Exciting new advances in neuro-oncology: the avenue to a cure for malignant glioma. CA Cancer J Clin. 2010;60(3):166–93. doi:10.3322/caac.20069.
Bartel DP. MicroRNAs: target recognition and regulatory functions. Cell. 2009;136(2):215–33. doi:10.1016/j.cell.2009.01.002.
Lewis BP, Burge CB, Bartel DP. Conserved seed pairing, often flanked by adenosines, indicates that thousands of human genes are microRNA targets. Cell. 2005;120(1):15–20. doi:10.1016/j.cell.2004.12.035.
Gabriely G, Wurdinger T, Kesari S, Esau CC, Burchard J, Linsley PS, et al. MicroRNA 21 promotes glioma invasion by targeting matrix metalloproteinase regulators. Mol Cell Biol. 2008;28(17):5369–80. doi:10.1128/MCB.00479-08.
Shi ZM, Wang XF, Qian X, Tao T, Wang L, Chen QD, et al. MiRNA-181b suppresses IGF-1R and functions as a tumor suppressor gene in gliomas. RNA. 2013;19(4):552–60. doi:10.1261/rna.035972.112.
Sun JY, Huang Y, Li JP, Zhang X, Wang L, Meng YL, et al. MicroRNA-320a suppresses human colon cancer cell proliferation by directly targeting beta-catenin. Biochem Biophys Res Commun. 2012;420(4):787–92. doi:10.1016/j.bbrc.2012.03.075.
Schepeler T, Reinert JT, Ostenfeld MS, Christensen LL, Silahtaroglu AN, Dyrskjot L, et al. Diagnostic and prognostic microRNAs in stage II colon cancer. Cancer Res. 2008;68(15):6416–24. doi:10.1158/0008-5472.CAN-07-6110.
Annunziata M, Granata R, Ghigo E. The IGF system. Acta Diabetol. 2011;48(1):1–9. doi:10.1007/s00592-010-0227-z.
Cao Z, Liu LZ, Dixon DA, Zheng JZ, Chandran B, Jiang BH. Insulin-like growth factor-I induces cyclooxygenase-2 expression via PI3K, MAPK and PKC signaling pathways in human ovarian cancer cells. Cell Signal. 2007;19(7):1542–53. doi:10.1016/j.cellsig.2007.01.028.
Kong KL, Kwong DL, Chan TH, Law SY, Chen L, Li Y, et al. MicroRNA-375 inhibits tumour growth and metastasis in oesophageal squamous cell carcinoma through repressing insulin-like growth factor 1 receptor. Gut. 2012;61(1):33–42. doi:10.1136/gutjnl-2011-300178.
Zhao X, Dou W, He L, Liang S, Tie J, Liu C, et al. MicroRNA-7 functions as an anti-metastatic microRNA in gastric cancer by targeting insulin-like growth factor-1 receptor. Oncogene. 2013;32(11):1363–72. doi:10.1038/onc.2012.156.
Zhou X, Ren Y, Moore L, Mei M, You Y, Xu P, et al. Downregulation of miR-21 inhibits EGFR pathway and suppresses the growth of human glioblastoma cells independent of PTEN status. Lab Invest. 2010;90(2):144–55. doi:10.1038/labinvest.2009.126.
Zhang J, Han L, Zhang A, Wang Y, Yue X, You Y, et al. AKT2 expression is associated with glioma malignant progression and required for cell survival and invasion. Oncol Rep. 2010;24(1):65–72.
Zhang CZ, Zhang JX, Zhang AL, Shi ZD, Han L, Jia ZF, et al. MiR-221 and miR-222 target PUMA to induce cell survival in glioblastoma. Mol Cancer. 2010;9:229. doi:10.1186/1476-4598-9-229.
Yao J, Liang LH, Zhang Y, Ding J, Tian Q, Li JJ, et al. GNAI1 suppresses tumor cell migration and invasion and is post-transcriptionally regulated by Mir-320a/c/d in hepatocellular carcinoma. Cancer Biol Med. 2012;9(4):234–41. doi:10.7497/j.issn.2095-3941.2012.04.003.
Mauro L, Surmacz E. IGF-I receptor, cell-cell adhesion, tumour development and progression. J Mol Histol. 2004;35(3):247–53.
Osaki LH, Gama P. MAPKs and signal transduction in the control of gastrointestinal epithelial cell proliferation and differentiation. Int J Mol Sci. 2013;14(5):10143–61. doi:10.3390/ijms140510143.
Bruhn MA, Pearson RB, Hannan RD, Sheppard KE. AKT-independent PI3-K signaling in cancer - emerging role for SGK3. Cancer Manag Res. 2013;5:281–92. doi:10.2147/CMAR.S35178.
Bartel DP. MicroRNAs: genomics, biogenesis, mechanism, and function. Cell. 2004;116(2):281–97.
Lewis BP, Shih IH, Jones-Rhoades MW, Bartel DP, Burge CB. Prediction of mammalian microRNA targets. Cell. 2003;115(7):787–98.
Zhang Y, Dutta A, Abounader R. The role of microRNAs in glioma initiation and progression. Front Biosci (Landmark Ed). 2012;17:700–12.
Tognon CE, Sorensen PH. Targeting the insulin-like growth factor 1 receptor (IGF1R) signaling pathway for cancer therapy. Expert Opin Ther Targets. 2012;16(1):33–48. doi:10.1517/14728222.2011.638626.
Pollak M. Insulin and insulin-like growth factor signalling in neoplasia. Nat Rev Cancer. 2008;8(12):915–28. doi:10.1038/nrc2536.
Acknowledgments
This research was supported by grants from the National High Technology Research and Development Program (No. 2012AA02A508), the International Science and Technology Cooperation Program (No. 2012DFA30470), the National 973 Program (No. 2011CB707804), and the National Natural Science Foundation of China (No. 91229121, 81201993, 81071626).
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Guo, T., Feng, Y., Liu, Q. et al. MicroRNA-320a suppresses in GBM patients and modulates glioma cell functions by targeting IGF-1R. Tumor Biol. 35, 11269–11275 (2014). https://doi.org/10.1007/s13277-014-2283-4
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DOI: https://doi.org/10.1007/s13277-014-2283-4