Overexpression and Small Molecule-Triggered Downregulation of CIP2A in Lung Cancer
2011

CIP2A as a Target for Lung Cancer Treatment

Sample size: 60 publication 10 minutes Evidence: moderate

Author Information

Author(s): Ma Liang, Wen Zhe-Sheng, Liu Zi, Hu Zheng, Ma Jun, Chen Xiao-Qin, Liu Yong-Qiang, Pu Jian-Xin, Xiao Wei-Lie, Sun Han-Dong, Zhou Guang-Biao

Primary Institution: Institute of Zoology, Chinese Academy of Sciences, Beijing, China

Hypothesis

Can CIP2A be a new drug target for lung cancer?

Conclusion

CIP2A could be an effective target for lung cancer drug development, and the therapeutic potentials of CIP2A-targeting agents warrant further investigation.

Supporting Evidence

  • CIP2A was undetectable or very low in normal tissues but elevated in 63.3% of tumor samples.
  • CIP2A overexpression was significantly associated with cigarette smoking.
  • Silencing CIP2A inhibited lung cancer cell proliferation and clonogenic activity.
  • Rabdocoetsin B induced down-regulation of CIP2A and inhibited lung cancer cell growth.

Takeaway

CIP2A is a protein that helps lung cancer grow, and a natural compound called rabdocoetsin B can lower its levels, which might help treat lung cancer.

Methodology

The study used RT-PCR, Western blotting, and immunohistochemistry to evaluate CIP2A expression in lung tissues from 60 patients.

Potential Biases

Potential bias due to the sample being derived from a specific geographic region.

Limitations

The study did not test the long-term effects of NNK on CIP2A expression.

Participant Demographics

60 lung cancer patients from southern China, with a mix of genders and smoking statuses.

Statistical Information

P-Value

p=0.004

Confidence Interval

95.0% Confidence Interval: 1.537–18.487

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0020159

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