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PLoS One. 2015 Aug 25;10(8):e0132481. doi: 10.1371/journal.pone.0132481. eCollection 2015.

Lymphangiogenic Markers and Their Impact on Nodal Metastasis and Survival in Non-Small Cell Lung Cancer--A Structured Review with Meta-Analysis.

Author information

1
Department of Oncology, University Hospital of North Norway, Tromso, Norway; Institute of Clinical Medicine, UiT The Arctic University of Norway, Tromso, Norway.
2
Institute of Clinical Medicine, UiT The Arctic University of Norway, Tromso, Norway.
3
Department of Community Medicine, UiT The Arctic University of Norway, Tromso, Norway.
4
Department of Clinical Pathology, University Hospital of North Norway, Tromso, Norway; Institute of Medical Biology, UiT The Arctic University of Norway, Tromso, Norway.

Abstract

BACKGROUND:

In non-small cell lung cancer (NSCLC), nodal metastasis is an adverse prognostic factor. Several mediating factors have been implied in the development of nodal metastases and investigated for predictive and prognostic properties in NSCLC. However, study results differ. In this structured review and meta-analysis we explore the published literature on commonly recognized pathways for molecular regulation of lymphatic metastasis in NSCLC.

METHODS:

A structured PubMed search was conducted for papers reporting on the expression of known markers of lymhangiogenesis in NSCLC patients. Papers of sufficient quality, presenting survival and/or correlation data were included.

RESULTS:

High levels of vascular endothelial growth factor C (VEGF-C, HR 1.57 95% CI 1.34-1.84) and high lymphatic vascular density (LVD, HR 1.84 95% CI 1.18-2.87) were significant prognostic markers of poor survival and high expression of VEGF-C, vascular endothelial growth factor receptor 3 (VEGFR3) and LVD was associated with lymph node metastasis in NSCLC.

CONCLUSION:

Lymphangiogenic markers are prognosticators of survival and correlate with lymph node metastasis in NSCLC. Their exact role and clinical implications should be further elucidated.

PMID:
26305218
PMCID:
PMC4549062
DOI:
10.1371/journal.pone.0132481
[Indexed for MEDLINE]
Free PMC Article

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