The Use of Laser Microdissection and SELDI-TOF MS in Ovarian Cancer Tissue to Identify Protein Profiles

Isabelle Cadron, Toon van Gorp, Frederic Amant, Ignace Vergote, Philippe Moerman, Etienne Waelkens, Anneleen Daemen, Raf van de Plas, Bart de Moor, Robert Zeillinger

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Abstract

Background: There is a strong need for prognostic biomarkers in ovarian cancer patients due to the heterogeneous responses on current treatment modalities. Materials and Methods: This study investigates the feasibility of combining laser microdissection (LMD) and surface enhanced laser desorption ionization-time of flight mass spectrometry (SELDI-TOF MS) in ovarian cancer tissue to obtain protein profiles. Results: Ideal conditions for preparing a protein lysate were determined and subsequently analysed on SELDI-TOF MS. Applying these protocols on tissue of 9 ovarian cancer patients showed different protein profiles between platinum sensitive and resistant patients. Conclusion: This shows that combining optimised protocols for LMD with SELDI-TOF MS can be used to obtain discriminatory protein profiles. However, studies with large patient numbers and validation sets are essential to identify reliable biomarkers using this approach
Original languageEnglish
Pages (from-to)1039-1045
JournalAnticancer research
Volume29
Issue number4
Publication statusPublished - 2009

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