Material-Enhanced Laser Desorption/Ionization (MELDI)-A New Protein Profiling Tool Utilizing Specific Carrier Materials for Time of Flight Mass Spectrometric Analysis

Isabel Feuerstein, Muhammad Najam-ul-Haq, Matthias Rainer, Lukas Trojer, Rania Bakry, Nurul Hidayat Aprilita, Günther Stecher, Christian W. Huck, Günther K. Bonn, Helmut Klocker, Georg Bartsch, A. Guttman

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Over the past couple of years, proteomics pattern analysis has emerged as an effective method for the early diagnosis of diseases such as ovarian, breast, or prostate cancer, without identification of single biomarkers. MALDI-TOF MS, for example, offers a simple approach for fast and reliable protein profiling, especially by using carrier materials with various physical and chemical properties, in combination with a MALDI matrix. This approach is referred to as material-enhanced laser desorption/ionization (MELDI). In this paper, we report the development and application of derivatized carrier materials [cellulose, silica, poly(glycidyl methacrylate/divinylbenzene) (GMA/DVB) particles, and diamond powder] for fast and direct MALDI-TOF MS protein profiling. The applicability of MELDI for rapid protein profiling was evaluated with human serum samples. These carriers, having various hydrophobicities, resulted in characteristic mass fingerprints, even if all materials were derivatized with iminodiacetic acid (IDA) to yield an immobilized metal affinity chromatography (IMAC) functionality. Our study demonstrates that analyzing complex biological samples, such as human serum, by employing different MELDI carrier materials yielded type- and size-dependent performance variation.

Original languageEnglish
Pages (from-to)1203-1208
Number of pages6
JournalJournal of the American Society for Mass Spectrometry
Volume17
Issue number9
DOIs
Publication statusPublished - Sep 2006

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Matrix-Assisted Laser Desorption-Ionization Mass Spectrometry
Ionization
Desorption
divinyl benzene
Lasers
Proteins
Diamond
Dermatoglyphics
Serum
Hydrophobic and Hydrophilic Interactions
Affinity Chromatography
Cellulose
Silicon Dioxide
Proteomics
Ovarian Neoplasms
Powders
Early Diagnosis
Prostatic Neoplasms
Biomarkers
Metals

ASJC Scopus subject areas

  • Structural Biology
  • Spectroscopy

Cite this

Material-Enhanced Laser Desorption/Ionization (MELDI)-A New Protein Profiling Tool Utilizing Specific Carrier Materials for Time of Flight Mass Spectrometric Analysis. / Feuerstein, Isabel; Najam-ul-Haq, Muhammad; Rainer, Matthias; Trojer, Lukas; Bakry, Rania; Aprilita, Nurul Hidayat; Stecher, Günther; Huck, Christian W.; Bonn, Günther K.; Klocker, Helmut; Bartsch, Georg; Guttman, A.

In: Journal of the American Society for Mass Spectrometry, Vol. 17, No. 9, 09.2006, p. 1203-1208.

Research output: Contribution to journalArticle

Feuerstein, Isabel ; Najam-ul-Haq, Muhammad ; Rainer, Matthias ; Trojer, Lukas ; Bakry, Rania ; Aprilita, Nurul Hidayat ; Stecher, Günther ; Huck, Christian W. ; Bonn, Günther K. ; Klocker, Helmut ; Bartsch, Georg ; Guttman, A. / Material-Enhanced Laser Desorption/Ionization (MELDI)-A New Protein Profiling Tool Utilizing Specific Carrier Materials for Time of Flight Mass Spectrometric Analysis. In: Journal of the American Society for Mass Spectrometry. 2006 ; Vol. 17, No. 9. pp. 1203-1208.
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