Down-regulation of NKD1 increases the invasive potential of non-small-cell lung cancer and correlates with a poor prognosis
2011

NKD1 and Lung Cancer: How Lower Levels Affect Invasiveness

Sample size: 100 publication Evidence: moderate

Author Information

Author(s): Zhang Sheng, Wang Yan, Dai Shun-Dong, Wang En-Hua

Primary Institution: Department of Pathology, the First Affiliated Hospital and College of Basic Medical Sciences of China Medical University

Hypothesis

The expression of NKD1 in non-small-cell lung cancer (NSCLC) correlates with clinicopathological factors and patient prognosis.

Conclusion

Reduced NKD1 protein expression correlates with a poor prognosis in NSCLC.

Supporting Evidence

  • NKD1 protein was lower in 78% of NSCLC cases compared to normal tissues.
  • Reduced NKD1 expression was linked to poor differentiation and higher TNM stage.
  • Patients with normal NKD1 levels had a significantly longer survival time.

Takeaway

This study found that lower levels of a protein called NKD1 in lung cancer can make the cancer spread more easily and is linked to worse outcomes for patients.

Methodology

Immunohistochemical studies were performed on lung cancer tissues, and NKD1 was down-regulated in cell lines using siRNA to evaluate invasiveness.

Participant Demographics

66 patients with complete follow-up records, mean age 58 years, including 30 cases of adenocarcinoma and 36 cases of squamous cell carcinoma.

Statistical Information

P-Value

0.009

Confidence Interval

1.143~2.975

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2407-11-186

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