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Diagnostic Pathology

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Open Access 01-12-2015 | Research

High Rab27A expression indicates favorable prognosis in CRC

Authors: Chuanbing Shi, Xiaojun Yang, Yijiang Ni, Ning Hou, Li Xu, Feng Zhan, Huijun Zhu, Lin Xiong, Pingsheng Chen

Published in: Diagnostic Pathology | Issue 1/2015

Abstract

Background

Rab27A is a peculiar member in Rab family and has been suggested to play essential roles in the development of human cancers. However, the association between Rab27A expression and clinicopathological characteristics of colorectal cancer (CRC) has not been elucidated yet.

Methods

One-step quantitative real-time polymerase chain reaction (qPCR) test with 18 fresh-frozen CRC samples and immunohistochemistry (IHC) analysis in 112 CRC cases were executed to evaluate the relationship between Rab27A expression and the clinicopathological features of CRC. Cox regression and Kaplan-Meier survival analyses were performed to identify the prognostic factors for 112 CRC patients.

Results

The results specified that the expression levels of Rab27A mRNA and protein were significantly higher in CRC tissues than that in matched non-cancerous tissues, in both qPCR test (p = 0.029) and IHC analysis (p = 0.020). The IHC data indicated that the Rab27A protein expression in CRC was statistically correlated with lymph node metastasis (p = 0.022) and TNM stage (p = 0.026). Cox multi-factor analysis and Kaplan-Meier method suggested Rab27A protein expression (p = 0.012) and tumor differentiation (p = 0.004) were significantly associated with the overall survival of CRC patients.

Conclusion

The data indicated the differentiate expression of Rab27A in CRC tissues and matched non-cancerous tissues. Rab27A may be used as a valuable prognostic biomarker for CRC patients.

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Title: High Rab27A expression indicates favorable prognosis in CRC
Authors: Chuanbing Shi
Xiaojun Yang
Yijiang Ni
Ning Hou
Li Xu
Feng Zhan
Huijun Zhu
Lin Xiong
Pingsheng Chen
Publication date: 01-12-2015
Publisher: BioMed Central
Published in: Diagnostic Pathology / Issue 1/2015
Electronic ISSN: 1746-1596
DOI: https://doi.org/10.1186/s13000-015-0303-3

Keynote webinar | Spotlight on medication adherence

Springer Medicine

High Rab27A expression indicates favorable prognosis in CRC

Abstract

Background

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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