Open Access

Quantitative label-free mass spectrometry analysis of formalin-fixed, paraffin-embedded tissue representing the invasive cutaneous malignant melanoma proteome

  • Authors:
    • Paul Dowling
    • Benvon Moran
    • Edel McAuley
    • Paula Meleady
    • Michael Henry
    • Martin Clynes
    • Mairin McMenamin
    • Niamh Leonard
    • Mary Monks
    • Bairbre Wynne
    • Patrick Ormond
    • Annemarie Larkin
  • View Affiliations

  • Published online on: September 7, 2016     https://doi.org/10.3892/ol.2016.5101
  • Pages: 3296-3304
  • Copyright: © Dowling et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Understanding the events at a protein level that govern the progression from melanoma in situ to invasive melanoma are important areas of current research to be developed. Recent advances in the analysis of formalin‑fixed, paraffin‑embedded tissue by proteomics, particularly using the filter‑aided sample preparation protocol, has opened up the possibility of studying vast archives of clinical material and associated medical records. In the present study, quantitative protein profiling was performed using tandem mass spectrometry, and the proteome differences between melanoma in situ and invasive melanoma were compared. Biological pathway analyses revealed several signalling pathways differing between melanoma in situ and invasive melanoma, including metabolic pathways and the phosphoinositide 3-kinase‑Akt signalling pathway. Selected proteins of interest (14‑3‑3ε and fatty acid synthase) were subsequently investigated using immunohistochemical analysis of tissue microarrays. Identifying the key proteins that play significant roles in the establishment of a more invasive phenotype in melanoma may ultimately aid diagnosis and treatment decisions.
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November-2016
Volume 12 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Dowling P, Moran B, McAuley E, Meleady P, Henry M, Clynes M, McMenamin M, Leonard N, Monks M, Wynne B, Wynne B, et al: Quantitative label-free mass spectrometry analysis of formalin-fixed, paraffin-embedded tissue representing the invasive cutaneous malignant melanoma proteome. Oncol Lett 12: 3296-3304, 2016
APA
Dowling, P., Moran, B., McAuley, E., Meleady, P., Henry, M., Clynes, M. ... Larkin, A. (2016). Quantitative label-free mass spectrometry analysis of formalin-fixed, paraffin-embedded tissue representing the invasive cutaneous malignant melanoma proteome. Oncology Letters, 12, 3296-3304. https://doi.org/10.3892/ol.2016.5101
MLA
Dowling, P., Moran, B., McAuley, E., Meleady, P., Henry, M., Clynes, M., McMenamin, M., Leonard, N., Monks, M., Wynne, B., Ormond, P., Larkin, A."Quantitative label-free mass spectrometry analysis of formalin-fixed, paraffin-embedded tissue representing the invasive cutaneous malignant melanoma proteome". Oncology Letters 12.5 (2016): 3296-3304.
Chicago
Dowling, P., Moran, B., McAuley, E., Meleady, P., Henry, M., Clynes, M., McMenamin, M., Leonard, N., Monks, M., Wynne, B., Ormond, P., Larkin, A."Quantitative label-free mass spectrometry analysis of formalin-fixed, paraffin-embedded tissue representing the invasive cutaneous malignant melanoma proteome". Oncology Letters 12, no. 5 (2016): 3296-3304. https://doi.org/10.3892/ol.2016.5101