Seromic profiling of ovarian and pancreatic cancer

Autoantibodies, a hallmark of both autoimmunity and cancer, represent an easily accessible surrogate for measuring adaptive immune responses to cancer. Sera can now be assayed for reactivity against thousands of proteins using microarrays, but there is no agreed-upon standard to analyze results. We...

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Hauptverfasser: Gnjatic, Sacha (VerfasserIn) , Ritter, Erika (VerfasserIn) , Büchler, Markus W. (VerfasserIn) , Giese, Nathalia (VerfasserIn) , Brors, Benedikt (VerfasserIn) , Frei, Claudia (VerfasserIn) , Murray, Anne (VerfasserIn) , Halama, Niels (VerfasserIn) , Zörnig, Inka (VerfasserIn) , Chen, Yao-Tseng (VerfasserIn) , Andrews, Christopher (VerfasserIn) , Ritter, Gerd (VerfasserIn) , Old, Lloyd J. (VerfasserIn) , Odunsi, Kunle (VerfasserIn) , Jäger, Dirk (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2010 Mar 16
In: Proceedings of the National Academy of Sciences of the United States of America
Year: 2010, Jahrgang: 107, Heft: 11, Pages: 5088-5093
ISSN:1091-6490
Online-Zugang: Volltext
Verfasserangaben:Sacha Gnjatic, Erika Ritter, Markus W. Büchler, Nathalia A. Giese, Benedikt Brors, Claudia Frei, Anne Murray, Niels Halama, Inka Zörnig, Yao-Tseng Chen, Christopher Andrews, Gerd Ritter, Lloyd J. Old, Kunle Odunsi, and Dirk Jäger

MARC

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520 |a Autoantibodies, a hallmark of both autoimmunity and cancer, represent an easily accessible surrogate for measuring adaptive immune responses to cancer. Sera can now be assayed for reactivity against thousands of proteins using microarrays, but there is no agreed-upon standard to analyze results. We developed a set of tailored quality control and normalization procedures based on ELISA validation to allow patient comparisons and determination of individual cutoffs for specificity and sensitivity. Sera from 60 patients with pancreatic cancer, 51 patients with ovarian cancer, and 53 age-matched healthy donors were used to assess the binding of IgG antibodies against a panel of >8000 human antigens using protein microarrays and fluorescence detection. The resulting data interpretation led to the definition and ranking of proteins with preferred recognition by the sera from cancer patients in comparison with healthy donors, both by frequency and strength of signal. We found that 202 proteins were preferentially immunogenic in ovarian cancer sera compared to 29 in pancreatic cancer, with few overlaps. Correlates of autoantibody signatures with known tumor expression of corresponding antigens, functional pathways, clinical stage, and outcome were examined. Serological analysis of arrays displaying the complete human proteome (seromics) represents a new era in cancer immunology, opening the way to defining the repertoire of the humoral immune response to cancer. 
650 4 |a Adult 
650 4 |a Aged 
650 4 |a Aged, 80 and over 
650 4 |a Antibody Specificity 
650 4 |a Autoantibodies 
650 4 |a Biomarkers, Tumor 
650 4 |a Blood Donors 
650 4 |a Case-Control Studies 
650 4 |a Enzyme-Linked Immunosorbent Assay 
650 4 |a Female 
650 4 |a Genes, Neoplasm 
650 4 |a Humans 
650 4 |a Middle Aged 
650 4 |a Neoplasm Proteins 
650 4 |a Ovarian Neoplasms 
650 4 |a Pancreatic Neoplasms 
650 4 |a Protein Array Analysis 
650 4 |a Proteome 
650 4 |a Reproducibility of Results 
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