Searching across hundreds of databases

Our searching services are busy right now. Your search will reload in five seconds.

Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

Disrupting the pairing between let-7 and Hmga2 enhances oncogenic transformation.

Science (New York, N.Y.) | Mar 16, 2007

MicroRNAs (miRNAs) are approximately 22-nucleotide RNAs that can pair to sites within messenger RNAs to specify posttranscriptional repression of these messages. Aberrant miRNA expression can contribute to tumorigenesis, but which of the many miRNA-target relationships are relevant to this process has been unclear. Here, we report that chromosomal translocations previously associated with human tumors disrupt repression of High Mobility Group A2 (Hmga2) by let-7 miRNA. This disrupted repression promotes anchorage-independent growth, a characteristic of oncogenic transformation. Thus, losing miRNA-directed repression of an oncogene provides a mechanism for tumorigenesis, and disrupting a single miRNA-target interaction can produce an observable phenotype in mammalian cells.

Pubmed ID: 17322030 RIS Download

Mesh terms: 3' Untranslated Regions | Animals | Cell Line, Tumor | Cell Proliferation | Cell Transformation, Neoplastic | Gene Expression Regulation | Genes, Tumor Suppressor | HMGA2 Protein | HeLa Cells | Humans | Mice | Mice, Nude | MicroRNAs | NIH 3T3 Cells | Neoplasms, Experimental | Oncogenes | Transfection | Translocation, Genetic

Research resources used in this publication

None found

Research tools detected in this publication

None found

Data used in this publication

Associated grants

  • Agency: NIDDK NIH HHS, Id: R01 DK068348
  • Agency: NIDDK NIH HHS, Id: R01 DK068348-01
  • Agency: NIDDK NIH HHS, Id: R01 DK068348-02
  • Agency: NIDDK NIH HHS, Id: R01 DK068348-03

Addgene (Reagent, Plasmid)

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

We have not found any resources mentioned in this publication.