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Departments of 1 Pathology and 2 Neurology, Brigham and Women's Hospital and 3 Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts; and 4 Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, California
Requests for reprints: Anna M. Krichevsky, Neurology, Brigham and Women's Hospital, Harvard Medical School, 4 Blackfan Circle HIM 760, Boston, MA 02115. Phone: 617-525-5195; Fax: 617-525-5305; E-mail: krichevsky{at}cnd.bwh.harvard.edu.
MicroRNAs (miRNAs) are small noncoding RNA molecules that regulate protein expression by targeting the mRNA of protein-coding genes for either cleavage or repression of translation. The roles of miRNAs in lineage determination and proliferation as well as the location of several miRNA genes at sites of translocation breakpoints or deletions has led to the speculation that miRNAs could be important factors in the development or maintenance of the neoplastic state. Here we show that the highly malignant human brain tumor, glioblastoma, strongly overexpresses a specific miRNA, miR-21. Our studies show markedly elevated miR-21 levels in human glioblastoma tumor tissues, early-passage glioblastoma cultures, and in six established glioblastoma cell lines (A172, U87, U373, LN229, LN428, and LN308) compared with nonneoplastic fetal and adult brain tissues and compared with cultured nonneoplastic glial cells. Knockdown of miR-21 in cultured glioblastoma cells triggers activation of caspases and leads to increased apoptotic cell death. Our data suggest that aberrantly expressed miR-21 may contribute to the malignant phenotype by blocking expression of critical apoptosis-related genes.
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K. P. Porkka, M. J. Pfeiffer, K. K. Waltering, R. L. Vessella, T. L.J. Tammela, and T. Visakorpi MicroRNA Expression Profiling in Prostate Cancer Cancer Res., July 1, 2007; 67(13): 6130 - 6135. [Abstract] [Full Text] [PDF] |
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R. Ji, Y. Cheng, J. Yue, J. Yang, X. Liu, H. Chen, D. B. Dean, and C. Zhang MicroRNA Expression Signature and Antisense-Mediated Depletion Reveal an Essential Role of MicroRNA in Vascular Neointimal Lesion Formation Circ. Res., June 8, 2007; 100(11): 1579 - 1588. [Abstract] [Full Text] [PDF] |
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C. Slape, H. Hartung, Y.-W. Lin, J. Bies, L. Wolff, and P. D. Aplan Retroviral Insertional Mutagenesis Identifies Genes that Collaborate with NUP98-HOXD13 during Leukemic Transformation Cancer Res., June 1, 2007; 67(11): 5148 - 5155. [Abstract] [Full Text] [PDF] |
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M. Negrini, M. Ferracin, S. Sabbioni, and C. M. Croce MicroRNAs in human cancer: from research to therapy J. Cell Sci., June 1, 2007; 120(11): 1833 - 1840. [Abstract] [Full Text] [PDF] |
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Y. Cheng, R. Ji, J. Yue, J. Yang, X. Liu, H. Chen, D. B. Dean, and C. Zhang MicroRNAs Are Aberrantly Expressed in Hypertrophic Heart: Do They Play a Role in Cardiac Hypertrophy? Am. J. Pathol., June 1, 2007; 170(6): 1831 - 1840. [Abstract] [Full Text] [PDF] |
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V. Fulci, S. Chiaretti, M. Goldoni, G. Azzalin, N. Carucci, S. Tavolaro, L. Castellano, A. Magrelli, F. Citarella, M. Messina, et al. Quantitative technologies establish a novel microRNA profile of chronic lymphocytic leukemia Blood, June 1, 2007; 109(11): 4944 - 4951. [Abstract] [Full Text] [PDF] |
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S. Zhu, M.-L. Si, H. Wu, and Y.-Y. Mo MicroRNA-21 Targets the Tumor Suppressor Gene Tropomyosin 1 (TPM1) J. Biol. Chem., May 11, 2007; 282(19): 14328 - 14336. [Abstract] [Full Text] [PDF] |
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M. Bloomston, W. L. Frankel, F. Petrocca, S. Volinia, H. Alder, J. P. Hagan, C.-G. Liu, D. Bhatt, C. Taccioli, and C. M. Croce MicroRNA Expression Patterns to Differentiate Pancreatic Adenocarcinoma From Normal Pancreas and Chronic Pancreatitis JAMA, May 2, 2007; 297(17): 1901 - 1908. [Abstract] [Full Text] [PDF] |
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F. Meng, R. Henson, H. Wehbe-Janek, H. Smith, Y. Ueno, and T. Patel The MicroRNA let-7a Modulates Interleukin-6-dependent STAT-3 Survival Signaling in Malignant Human Cholangiocytes J. Biol. Chem., March 16, 2007; 282(11): 8256 - 8264. [Abstract] [Full Text] [PDF] |
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A. Gaur, D. A. Jewell, Y. Liang, D. Ridzon, J. H. Moore, C. Chen, V. R. Ambros, and M. A. Israel Characterization of MicroRNA Expression Levels and Their Biological Correlates in Human Cancer Cell Lines Cancer Res., March 15, 2007; 67(6): 2456 - 2468. [Abstract] [Full Text] [PDF] |
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L. L. Coutinho, L. K. Matukumalli, T. S. Sonstegard, C. P. Van Tassell, L. C. Gasbarre, A. V. Capuco, and T. P. L. Smith Discovery and profiling of bovine microRNAs from immune-related and embryonic tissues Physiol Genomics, March 14, 2007; 29(1): 35 - 43. [Abstract] [Full Text] [PDF] |
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D. Sayed, C. Hong, I.-Y. Chen, J. Lypowy, and M. Abdellatif MicroRNAs Play an Essential Role in the Development of Cardiac Hypertrophy Circ. Res., February 16, 2007; 100(3): 416 - 424. [Abstract] [Full Text] [PDF] |
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Y. Chen and R. L. Stallings Differential Patterns of MicroRNA Expression in Neuroblastoma Are Correlated with Prognosis, Differentiation, and Apoptosis Cancer Res., February 1, 2007; 67(3): 976 - 983. [Abstract] [Full Text] [PDF] |
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D. N. Kim, H.-S. Chae, S. T. Oh, J.-H. Kang, C. H. Park, W. S. Park, K. Takada, J. M. Lee, W.-K. Lee, and S. K. Lee Expression of Viral MicroRNAs in Epstein-Barr Virus-Associated Gastric Carcinoma J. Virol., January 15, 2007; 81(2): 1033 - 1036. [Abstract] [Full Text] [PDF] |
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K. V. Prasanth and D. L. Spector Eukaryotic regulatory RNAs: an answer to the 'genome complexity' conundrum Genes & Dev., January 1, 2007; 21(1): 11 - 42. [Abstract] [Full Text] [PDF] |
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P. L. Boutz, G. Chawla, P. Stoilov, and D. L. Black MicroRNAs regulate the expression of the alternative splicing factor nPTB during muscle development Genes & Dev., January 1, 2007; 21(1): 71 - 84. [Abstract] [Full Text] [PDF] |
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H. Osada and T. Takahashi MicroRNAs in biological processes and carcinogenesis Carcinogenesis, January 1, 2007; 28(1): 2 - 12. [Abstract] [Full Text] [PDF] |
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E. van Rooij, L. B. Sutherland, N. Liu, A. H. Williams, J. McAnally, R. D. Gerard, J. A. Richardson, and E. N. Olson A signature pattern of stress-responsive microRNAs that can evoke cardiac hypertrophy and heart failure PNAS, November 28, 2006; 103(48): 18255 - 18260. [Abstract] [Full Text] [PDF] |
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C. Roldo, E. Missiaglia, J. P. Hagan, M. Falconi, P. Capelli, S. Bersani, G. A. Calin, S. Volinia, C.-G. Liu, A. Scarpa, et al. MicroRNA Expression Abnormalities in Pancreatic Endocrine and Acinar Tumors Are Associated With Distinctive Pathologic Features and Clinical Behavior J. Clin. Oncol., October 10, 2006; 24(29): 4677 - 4684. [Abstract] [Full Text] [PDF] |
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Y. Tsuchiya, M. Nakajima, S. Takagi, T. Taniya, and T. Yokoi MicroRNA Regulates the Expression of Human Cytochrome P450 1B1. Cancer Res., September 15, 2006; 66(18): 9090 - 9098. [Abstract] [Full Text] [PDF] |
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M. F. Mehler and J. S. Mattick Non-coding RNAs in the nervous system J. Physiol., September 1, 2006; 575(2): 333 - 341. [Abstract] [Full Text] [PDF] |
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G. A. Calin and C. M. Croce MicroRNA-Cancer Connection: The Beginning of a New Tale. Cancer Res., August 1, 2006; 66(15): 7390 - 7394. [Abstract] [Full Text] [PDF] |
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M. Argos, M. G. Kibriya, F. Parvez, F. Jasmine, M. Rakibuz-Zaman, and H. Ahsan Gene expression profiles in peripheral lymphocytes by arsenic exposure and skin lesion status in a bangladeshi population. Cancer Epidemiol. Biomarkers Prev., July 1, 2006; 15(7): 1367 - 1375. [Abstract] [Full Text] [PDF] |
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Y. Xi, R. Shalgi, O. Fodstad, Y. Pilpel, and J. Ju Differentially Regulated Micro-RNAs and Actively Translated Messenger RNA Transcripts by Tumor Suppressor p53 in Colon Cancer. Clin. Cancer Res., April 1, 2006; 12(7): 2014 - 2024. [Abstract] [Full Text] [PDF] |
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