Zusammenfassung
Zur komplexen Erfassung tumorbiologischer Veränderungen ist es notwendig, neben der DNA- und RNA-Ebene auch die Proteinebene zu analysieren. Mit der Methode der SELDI-TOF-MS (surface enhanced laser desorption/ionization time-of-flight mass spectrometry) steht nun ein Verfahren zur Verfügung, das die hochsensitive Detektion von spezifischen Proteinprofilen bei hohem Probendurchsatz erlaubt. Für die Nierentumoren konnten inzwischen spezifische Proteinmuster im Serum aufgezeigt werden, die die Grundlage für die Entwicklung spezifischer Biomarker darstellen. Erste Proteine, wie das „Serumamyloid Alpha“ (SAA) konnten identifiziert werden.
Die Analyse der Tumorgewebe wird zur Aufklärung der Tumorbiologie und zur Verbesserung der Subklassifizierung auch unter Berücksichtigung der Prognose führen. Proteomanalysen in Korrelation zur Therapie eröffnen die Möglichkeit der Aufklärung der biologischen Therapieeffekte einerseits und die Identifizierung von Biomarkern zur Patientenselektion und Therapieüberwachung andererseits. Erste Ansätze bei Nierenzelltumoren werden aufgezeigt.
Abstract
In order to understand tumour biology in its complexity, it is necessary to investigate the proteomics in addition to the DNA and RNA level. SELDI-TOF-MS represents a new technology allowing a highly sensitive high-throughput analysis to detect specific protein profiles. In renal cancer, it was possible to define specific protein patterns in serum. Several proteins have been identified, i.e. serum amyloid alpha (SAA).
Analysis of tumour tissues leads to a better understanding of tumour biology and provides the basis for differential classification and evaluation of prognosis. Investigation of the proteome concerning therapy results opens up the possibility of assessing downstream effects on the one hand and identifying biomarkers for selection of patients and therapy monitoring on the other hand. This review presents the first results for renal cancer.
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Danksagung
Wir danken Dr. Andreas Wiesner Ciphergen Biosystems, Inc. für die Bereitstellung von ausgewählten Abbildungen.
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Der korrespondierende Autor weist auf eine Verbindung mit folgender Firma/Firmen hin: Grundlage der Technik ist das nur von der Firma „Ciphergen“ produzierte System.
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Junker, K., von Eggeling, F., Müller, J. et al. Identifizierung von Biomarkern und therapeutischen Targets beim Nierenzellkarzinom mittels ProteinChip-Technologie. Urologe 45, 305–315 (2006). https://doi.org/10.1007/s00120-006-1001-2
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DOI: https://doi.org/10.1007/s00120-006-1001-2