Quantitative Proteomics Identify Novel miR-155 Target Proteins
2011

Identifying New Target Proteins of miR-155

Sample size: 46 publication Evidence: moderate

Author Information

Author(s): Lößner Christopher, Meier Jan, Warnken Uwe, Rogers Michael A., Lichter Peter, Pscherer Armin, Schnölzer Martina

Primary Institution: German Cancer Research Center (DKFZ), Heidelberg, Germany

Hypothesis

What are the target proteins of miR-155 in HEK293T cells?

Conclusion

The study identified 46 potential target proteins of miR-155, with a focus on their role in cell cycle regulation.

Supporting Evidence

  • Using SILAC, 46 putative miR-155 target proteins were identified.
  • CKAP5 was confirmed as a new target of miR-155 through luciferase reporter assays.
  • The study highlights the cell line specificity of microRNA targets.

Takeaway

Researchers found that a tiny molecule called miR-155 can control many proteins in cells, especially those that help cells divide.

Methodology

The study used stable isotope labeling by amino acids in cell culture (SILAC) to identify target proteins of miR-155 in HEK293T cells.

Potential Biases

Potential bias due to the reliance on specific cell lines and methods for target identification.

Limitations

The study primarily focused on one cell line, which may limit the generalizability of the findings.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022146

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