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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Confocal laser endomicroscopy in head and neck malignancies using FITC-labelled EpCAM- and EGF-R-antibodies in cell lines and tumor biopsies.
J. Biophotonics 10, 1365–1376 (2017)
Intraoperative detection of residual malignant cells at tumor margins following excision of primary tumors could help improving surgery and thus patients' outcome. The feasibility of the tumor antigens epidermal growth factor receptor (EGF-R) and epithelial cell adhesion molecule (EpCAM) for antibody-dependent confocal laser scanning endomicroscopy (CLE)-mediated visualization of malignant cells was addressed. Both tumor antigens are highly and frequently expressed in the majority of carcinomas, including head and neck squamous cell carcinomas (HNSCC), and represent prognostic and therapeutic tumor target molecules. FITC-conjugated EGF-R- and EpCAM-specific antibodies served as molecular tools for the detection of antigen-positive cells using the CLE technology. Specificity of both antibodies and their ability to discriminate tumor from non-tumor cells were assessed in vitro with human fibroblasts and PCI-1 HNSCC cell lines, and ex vivo on primary HNSCC samples (n = 11) and healthy mucosa (n = 5). Antigen specificity of the used EpCAM-specific antibody was superior to that of the EGF-R-specific antibody both in vitro and ex vivo (100% vs. 31.25%), and allowed visualization of cellular structures in CLE measurements. These results hold promise for possible future applications in humans.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Cle ; Egf-r ; Endomicroscopy ; Epcam ; Hnscc; Growth-factor-receptor; Embryonic Stem-cells; Cancer In-vivo; Ep-cam; Adhesion Molecule; Breast-cancer; Intraoperative Application; Barretts-esophagus; Colorectal-cancer; Expression
ISSN (print) / ISBN
1864-063X
e-ISSN
1864-0648
Zeitschrift
Journal of Biophotonics
Quellenangaben
Band: 10,
Heft: 10,
Seiten: 1365–1376
Verlag
Wiley
Verlagsort
Weinheim
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
CCG Personalized Radiotherapy in Head and Neck Cancer (KKG-KRT)