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Shao S, Scholtz LU, Gendreizig S, Martínez-Ruiz L, Florido J, Escames G, Schürmann M, Hain C, Hose L, Mentz A, Schmidt P, Wang M, Goon P, Wehmeier M, Brasch F, Kalinowski J, Oppel F, Sudhoff H. Primary head and neck cancer cell cultures are susceptible to proliferation of Epstein-Barr virus infected lymphocytes. BMC Cancer 2023; 23:47. [PMID: 36639629 PMCID: PMC9840248 DOI: 10.1186/s12885-022-10481-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND New concepts for a more effective anti-cancer therapy are urgently needed. Experimental flaws represent a major counter player of this development and lead to inaccurate and unreproducible data as well as unsuccessful translation of research approaches into clinics. In a previous study we have created epithelial cell cultures from head and neck squamous cell carcinoma (HNSCC) tissue. METHODS We characterize primary cell populations isolated from human papillomavirus positive HNSCC tissue for their marker expression by RT-qPCR, flow cytometry, and immunofluorescence staining. Their sensitivity to MDM2-inhibition was measured using cell viability assays. RESULTS Primary HNSCC cell cultures showed the delayed formation of spheroids at higher passages. These spheroids mimicked the morphology and growth characteristics of other established HNSCC spheroid models. However, expression of epithelial and mesenchymal markers could not be detected in these cells despite the presence of the HNSCC stem cell marker aldehyde dehydrogenase 1 family member A1. Instead, strong expression of B- and T-lymphocytes markers was observed. Flow cytometry analysis revealed a heterogeneous mixture of CD3 + /CD25 + T-lymphocytes and CD19 + B-lymphocytes at a ratio of 4:1 at passage 5 and transformed lymphocytes at late passages (≥ passage 12) with CD45 + CD19 + CD20 + , of which around 10 to 20% were CD3 + CD25 + CD56 + . Interestingly, the whole population was FOXP3-positive indicative of regulatory B-cells (Bregs). Expression of transcripts specific for the Epstein-Barr-virus (EBV) was detected to increase in these spheroid cells along late passages, and this population was vulnerable to MDM2 inhibition. HPV + HNSCC cells but not EBV + lymphocytes were detected to engraft into immunodeficient mice. CONCLUSIONS In this study we present a primary cell culture of EBV-infected tumor-infiltrating B-lymphocytes, which could be used to study the role of these cells in tumor biology in future research projects. Moreover, by describing the detailed characteristics of these cells, we aim to caution other researchers in the HNSCC field to test for EBV-infected lymphocyte contaminations in primary cell cultures ahead of further experiments. Especially researchers who are interested in TIL-based adopted immunotherapy should exclude these cells in their primary tumor models, e.g. by MDM2-inhibitor treatment. BI-12-derived xenograft tumors represent a suitable model for in vivo targeting studies.
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Affiliation(s)
- Senyao Shao
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Lars Uwe Scholtz
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Sarah Gendreizig
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Laura Martínez-Ruiz
- grid.4489.10000000121678994Biomedical Research Center, Health Sciences Technology Park, University of Granada, 18016 Granada, Spain ,grid.4489.10000000121678994Department of Physiology, Faculty of Medicine, University of Granada, 18016 Granada, Spain ,grid.459499.cCIBERFES, Ibs. Granada, San Cecilio University Hospital, 18016 Granada, Spain
| | - Javier Florido
- grid.4489.10000000121678994Biomedical Research Center, Health Sciences Technology Park, University of Granada, 18016 Granada, Spain ,grid.4489.10000000121678994Department of Physiology, Faculty of Medicine, University of Granada, 18016 Granada, Spain ,grid.459499.cCIBERFES, Ibs. Granada, San Cecilio University Hospital, 18016 Granada, Spain
| | - Germaine Escames
- grid.4489.10000000121678994Biomedical Research Center, Health Sciences Technology Park, University of Granada, 18016 Granada, Spain ,grid.4489.10000000121678994Department of Physiology, Faculty of Medicine, University of Granada, 18016 Granada, Spain ,grid.459499.cCIBERFES, Ibs. Granada, San Cecilio University Hospital, 18016 Granada, Spain
| | - Matthias Schürmann
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Carsten Hain
- grid.7491.b0000 0001 0944 9128Center for Biotechnology (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Leonie Hose
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany ,Department of Pathology, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Almut Mentz
- Department of Pathology, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Pascal Schmidt
- grid.7491.b0000 0001 0944 9128Center for Biotechnology (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Menghang Wang
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany ,grid.11135.370000 0001 2256 9319Department of Otolaryngology Head and Neck Surgery, Peking University International Hospital, Peking University, Beijing, 102206 China
| | - Peter Goon
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Michael Wehmeier
- Department of Laboratory Medicine, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Frank Brasch
- Department of Pathology, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Jörn Kalinowski
- grid.7491.b0000 0001 0944 9128Center for Biotechnology (CeBiTec), Universität Bielefeld, Bielefeld, Germany
| | - Felix Oppel
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
| | - Holger Sudhoff
- grid.7491.b0000 0001 0944 9128Department of Otolaryngology, Head and Neck Surgery, Campus Klinikum Bielefeld Mitte, University Hospital OWL of Bielefeld University, Klinikum Bielefeld, Teutoburger Str. 50, 33604 Bielefeld, Germany
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Tek F, MüLler S, Boga E, Gehl HB, Seitz D, Scholtz LU, Sudhoff H, Todt I. 3T MRI-based estimation of scalar cochlear implant electrode position. ACTA ACUST UNITED AC 2019; 39:269-273. [PMID: 31501619 PMCID: PMC6734201 DOI: 10.14639/0392-100x-2309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 04/13/2019] [Indexed: 11/23/2022]
Abstract
Common techniques to evaluate intracochlear electrode position include ionised radiation by multi-slice computer tomography, digital volume tomography (MSCT, DVT) and flat panel tomography (FPT). Recent advances in the knowledge about handling MRI artefacts and the pain-free performance of MRI scans in cochlear implantees showed that estimation of the intracochlear electrode position is possible at 1.5 T with perimodiolar or midmodiolar arrays. The aim of the present study is to evaluate the assessment of the ipsilateral scalar position of a cochlear implant lateral wall electrode by MRI sequences at 3T. In a prospective study we evaluated 10 patients implanted with a diametrically bipolar implant magnet system with a lateral wall electrode in the intrascalar electrode position in an axial and coronal position and a T2 weighted sequence at 3T and a resolution of 0.8 mm. We compared the intracochlear position with routine postoperative DVT scan. In all cases, the MRT-estimated scalar position corresponded with that estimated by DVT scan. In all cases, a scala tympani position was present. While the position in the basal turn is reliably localisable, the first-turn visual assessment is difficult. Estimation of the intracochlear position of lateral wall cochlear implant electrodes by 3T MRI is possible for the basal turn. Electrode design plays a major role in visual assessment.
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Affiliation(s)
- F Tek
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - S MüLler
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - E Boga
- Department of Radiology, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - H B Gehl
- Department of Radiology, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - D Seitz
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - L U Scholtz
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - H Sudhoff
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
| | - I Todt
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Ruhr Universität Bochum, Germany
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Abstract
OBJECTIVE To conduct a review of contemporary approaches on the diagnostic-preoperative, operative, and postoperative methods in the management of juvenile nasopharyngeal angiofibroma (JNA). STUDY DESIGN Retrospective study of 14 cases of JNA resection at the Department of Otorhinolaryngology, University of Innsbruck (Innsbruck, Austria) between 1987 and 1998. METHODS Data was obtained for each patient regarding age, presenting symptoms, duration of symptoms, biopsy findings, tumor location, administration of preoperative angiography and embolization, and surgical approach. The follow-up period ranged from 1 to 13 years. RESULTS Based on the histological evaluation by the preoperative biopsy and the tumor location, several surgical approaches were applied. A transnasal endoscopic procedure was employed in seven cases. The preoperative embolization and the intranasal approach with the potassium titanyl phosphate laser minimized blood loss. The recurrence rate was at a low of 15%. CONCLUSION The surgical approach should be determined by tumor location, tumor size, and effectiveness of tumor embolization. For patients with JNA with tumor extension involving the nasopharynx, the nasal cavity, the paranasal sinuses, and the pterygopalatine fossa, the transnasal endoscopic technique offers a minimally invasive resection of the entire tumor mass with minimal morphological disturbance.
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Affiliation(s)
- A W Scholtz
- Department of Otorhinolaryngology, University of Innsbruck, Innsbruck, Austria
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