Clinical & Experimental Metastasis

, Volume 30, Issue 4, pp 457–470

The tumour biology of synchronous and metachronous colorectal liver metastases: a systematic review

  • A. A. P. Slesser
  • P. Georgiou
  • G. Brown
  • S. Mudan
  • R. Goldin
  • P. Tekkis
Research Paper

DOI: 10.1007/s10585-012-9551-8

Cite this article as:
Slesser, A.A.P., Georgiou, P., Brown, G. et al. Clin Exp Metastasis (2013) 30: 457. doi:10.1007/s10585-012-9551-8

Abstract

Forty to fifty percent of colorectal cancer (CRC) patients develop colorectal liver metastases (CLM) that are either synchronous or metachronous in presentation. Clarifying whether there is a biological difference between the two groups of liver metastases or their primaries could have important clinical implications. A systematic review was performed using the following resources: MEDLINE from PubMed (1950 to present), Embase, Cochrane and the Web of Knowledge. Thirty-one articles met the inclusion criteria. The review demonstrated that the majority of studies found differences in molecular marker expression between colorectal liver metastases and their respective primaries in both the synchronous and metachronous groups. Studies investigating genetic aberrations demonstrated that the majority of changes in the primary tumour were ‘maintained’ in the colorectal liver metastases. A limited number of studies compared the primary tumours of the synchronous and metachronous groups and generally demonstrated no differences in marker expression. Although there were conflicting results, the colorectal liver metastases in the synchronous and metachronous groups demonstrated some differences in keeping with a more aggressive tumour subtype in the synchronous group. This review suggests that biological differences may exist between the liver metastases of the synchronous and metachronous groups. Whether there are biological differences between the primaries of the synchronous and metachronous groups remains undetermined due to the limited number of studies available. Future research is required to determine whether differences exist between the two groups and should include comparisons of the primary tumours.

Keywords

Colorectal cancer Colorectal liver metastases Molecular markers Biomarkers Synchronous colorectal liver metastases Metachronous colorectal liver metastases 

Abbreviations

CLM

Colorectal liver metastases

CRC

Colorectal cancer

SCLM

Synchronous colorectal liver metastases

IHC

Immunohistochemistry

RT-PCR

Reverse transcription polymerase chain reaction

2D-DIGE

Two-dimensional difference gel electrophoresis

FISH

Fluorescence in situ hybridization

CEBM

Oxford Centre for Evidence-Based Medicine Levels of Evidence

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • A. A. P. Slesser
    • 1
  • P. Georgiou
    • 1
    • 2
  • G. Brown
    • 3
  • S. Mudan
    • 2
    • 4
  • R. Goldin
    • 5
  • P. Tekkis
    • 1
    • 2
  1. 1.Department of Colorectal SurgeryThe Royal Marsden HospitalLondonUK
  2. 2.Division of SurgeryImperial College, Chelsea and Westminster CampusLondonUK
  3. 3.Department of RadiologyRoyal Marsden HospitalSuttonUK
  4. 4.Department of Hepatobiliary SurgeryRoyal Marsden HospitalLondonUK
  5. 5.Centre for Pathology, Imperial College at St Mary’s HospitalLondonUK

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