AAS ›› 2013, Vol. 44 ›› Issue (4 ): 509-513.doi: 10.3969/j.issn.0529-1356.2013.04.012

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Expression of 14-3-3zeta and p-Bad proteins in stage T1 non-small cell lung cancer and the significance

ZANG Dong-yu 1* LI Fu-zhi1 YANG Chun-yu2   

  1. 1.Department of Thoraxes Surgery the Third Affiliated Hospital; 2.Department of Pathology, the First Affiliated Hospital, Liaoning Medical University, Liaoning Jinzhou 121001, China
  • Received:2012-12-04 Revised:2013-02-07 Online:2013-08-06 Published:2013-09-04

Abstract:

Objective To observe the expression of 14-3-3zeta and p-Bad in stage T1 non-small cell lung cancer(NSCLC), and to investigate the relationship between the expression of 14-3-3zeta and p-Bad in NSCLC. Methods One hundred and ten paraffin
blocks and 50 fresh samples from NSCLC patients and normal lung were observed. Expression of 14-3-3zeta and p-Bad were detected by immunohistochemistry and Western blotting. Results Up-regulation of 14-3-3zeta was observed significantly in stage T1 NSCLC
in contrast to that in the normal lung. The increased 14-3-3zeta protein level was correlated with differentiation degree and lymph node metastasis, but it was disassociated with age, gender and histological type. Decreased expression of p-Bad was observed
in NSCLC in contrast to that in the normal lung. Expression of p-Bad was related to differentiation degree and lymph node metastasis, but it was disassociated with age, gender and histological type. Conclusion 14-3-3zeta and p-Bad play an important role in
development and progression of NSCLC.

Key words: Non-small cell lung cancer, 14-3-3zeta, p-Bad, Western blotting, Human

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