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MiR-221 and miR-222 target PUMA to induce cell survival in glioblastoma

Open access
Zhang, Chun-Zhi, Zhang, Jun-Xia, Zhang, An-Ling, Shi, Zhen-Dong, Han, Lei, Jia, Zhi-Fan, Yang, Wei-Dong, Wang, Guang-Xiu, Jiang, Tao, You, Yong-Ping, Pu, Pei-Yu, Cheng, Jin-Quan, Kang, Chun-Sheng·2010·Molecular Cancer

Abstract

Background: MiR-221 and miR-222 (miR-221/222) are frequently up-regulated in various types of human malignancy including glioblastoma. Recent studies have reported that miR-221/222 regulate cell growth and cell cycle progression by targeting p27 and p57. However the underlying mechanism involved in cell survival modulation of miR-221/222 remains elusive. Results: Here we showed that miR-221/222 inhibited cell apoptosis by targeting pro-apoptotic gene PUMA in human glioma cells. Enforced expression of miR-22/222 induced cell survival whereas knockdown of miR-221/222 rendered cells to apoptosis. Further, miR-221/222 reduced PUMA protein levels by targeting PUMA-3'UTR. Introducing PUMA cDNA without 3'UTR abrogated miR-221/222-induced cell survival. Notably, knockdown of miR-221/222 induces PUMA expression and cell apoptosis and considerably decreases tumor growth in xenograft model. Finally, there was an inverse relationship between PUMA and miR-221/222 expression in glioma tissues. Conclusion: To our knowledge, these data indicate for the first time that miR-221/222 directly regulate apoptosis by targeting PUMA in glioblastoma and that miR-221/222 could be potential therapeutic targets for glioblastoma intervention.

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Metadata

Authors
Zhang, C.-Z., Zhang, J.-X., Zhang, A.-L., Shi, Z.-D., Han, L., Jia, Z.-F., Yang, W.-D., Wang, G.-X., Jiang, T., You, Y.-P., Pu, P.-Y., Cheng, J.-Q., & Kang, C.-S.
Venue
Molecular Cancer
Published
2010-09-02
Volume
9
Issue
1
Pages
229-229
ISSN
1476-4598 (ISSN-L)
OpenAlex
W2162128852
Cited by
314
References
2
FWCI
8.22
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: MiR-221 and miR-222 target PUMA to induce cell survival in glioblastoma. https://app.cochat.ai/papers/10.1186/1476-4598-9-229
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Zhang, C.-Z., Zhang, J.-X., Zhang, A.-L., Shi, Z.-D., Han, L., Jia, Z.-F., Yang, W.-D., Wang, G.-X., Jiang, T., You, Y.-P., Pu, P.-Y., Cheng, J.-Q., & Kang, C.-S. (2010). MiR-221 and miR-222 target PUMA to induce cell survival in glioblastoma. Molecular Cancer. https://doi.org/10.1186/1476-4598-9-229

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