PloS one, 2019-03, Vol.14 (3), p.e0213892
2019
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Details
- Autor(en) / Beteiligte
- Titel
- Translation and evaluation of a pre-clinical 5-protein response prediction signature in a breast cancer phase Ib clinical trial
- Ist Teil von
- PloS one, 2019-03, Vol.14 (3), p.e0213892
- Ort / Verlag
- United States: Public Library of Science
- Erscheinungsjahr
- 2019
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- Human protein biomarker discovery relies heavily on pre-clinical models, in particular established cell lines and patient-derived xenografts, but confirmation studies in primary tissue are essential to demonstrate clinical relevance. We describe in this study the process that was followed to clinically translate a 5-protein response signature predictive for the activity of an anti-HER3 monoclonal antibody (lumretuzumab) originally measured in fresh frozen xenograft tissue. We detail the development, qualification, and validation of the multiplexed targeted mass spectrometry assay used to assess the signature performance in formalin-fixed, paraffin-embedded human clinical samples collected in a phase Ib trial designed to evaluate lumretuzumab in patients with metastatic breast cancer. We believe that the strategy delineated here provides a path forward to avoid the time- and cost-consuming step of having to develop immunological reagents against unproven targets. We expect that mass spectrometry-based platforms may become part of a rational process to rapidly test and qualify large number of candidate biomarkers to identify the few that stand a chance for further development and validation.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1932-6203eISSN: 1932-6203DOI: 10.1371/journal.pone.0213892Titel-ID: cdi_plos_journals_2195912888
- Format
- –
- Schlagworte
- Adult, Aged, Animals, Antibodies, Antibodies, Monoclonal, Humanized - therapeutic use, Biological markers, Biology and Life Sciences, Biomarkers, Biomarkers, Tumor - metabolism, Breast cancer, Breast Neoplasms - metabolism, Breast Neoplasms - therapy, Cancer, Cancer metastasis, Cell culture, Cell Line, Tumor, Clinical trials, Engineering and Technology, Female, Formaldehyde, Health aspects, Humans, Immunology, Male, Mass spectrometry, Mass Spectrometry - methods, Mass spectroscopy, Medicine and Health Sciences, Metastases, Metastasis, Middle Aged, Monoclonal antibodies, Neoplasm Proteins - metabolism, Paraffin, Paraffins, Patients, Pertuzumab, Pharmaceuticals, Predictions, Product development, Proteins, Proteomics, Reagents, Receptor, ErbB-3 - antagonists & inhibitors, Receptor, ErbB-3 - metabolism, Research and Analysis Methods, Scientific imaging, Spectroscopy, Tissues, Translational Medical Research, Tumors, Xenograft Model Antitumor Assays, Xenografts, Xenotransplantation