• Jpn. J. Clin. Oncol. · Feb 2010

    Detection of CEA mRNA, p53 and AE1/AE3 in haematoxylin-eosin-negative lymph nodes of early-stage non-small cell lung cancer may improve veracity of N staging and indicate prognosis.

    • Yuan Qiu, Haihong Yang, Hanzhang Chen, Linhu Ge, Xin Xu, Xinguo Xiong, and Jianxing He.
    • Department of Cardiothoracic Surgery, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical College, Guangzhou, China.
    • Jpn. J. Clin. Oncol. 2010 Feb 1; 40 (2): 146-52.

    ObjectiveAlthough the surgical-pathological classification can be considered the 'gold standard' of T-N staging, it could not provide satisfactory and accurate estimation of survival rates in early-stage non-small cell lung cancer (NSCLC).MethodsIn our study, the expression of carcinoembryonic antigen (CEA), p53 and intracytoplasmic keratin (AE1/AE3) using haematoxylin-eosin (HE) staining negative lymph nodes (LNs) in 28 patients with early-stage NSCLC were analysed using fluorescent quantitation reverse transcription-polymerase chain reaction (FQ-PCR) and immunohistochemistry (IHC).ResultsOne hundred and ninety-three LNs were analysed. Two patients staged as I up-staged to II, and six patients staged as II up-staged to III. About 32, 19 and 36 LNs were positive, respectively, for CEA mRNA (32/193, 16.6%), p53 (19/193, 9.84%) and AE1/AE3 (36/193, 18.65%) compared with control LNs. Only FQ-PCR test for CEA mRNA could detect micrometastases in stage I NSCLC patients with N0 LNs (2/13, 15.4%). Disease-free time in patients with CEA mRNA (P = 0.000), p53 protein (P = 0.013) and AE1/AE3 (P = 0.003) positive were significantly inferior to those with micrometastases negative. Moreover, the results demonstrated that the positive LNs for CEA mRNA (P = 0.028), p53 protein (P = 0.048) and AE1/AE3 (P = 0.007) were associated with the relapse time, respectively. However, Cox proportional hazards test showed that only clinical stage was the independent risk factor of relapse, and denied the correlation between micrometastases in LNs and recurrence.ConclusionsDetection of CEA mRNA, p53, AE1/AE3 in HE-negative LNs may improve veracity of N staging and predict its prognosis in patients with early-stage NSCLC. Furthermore, micrometastases in stage I may be performed by FQ-PCR more sensitive than IHC.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…

What will the 'Medical Journal of You' look like?

Start your free 21 day trial now.

We guarantee your privacy. Your email address will not be shared.