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Stenman S, Bétrisey S, Vainio P, Huvila J, Lundin M, Linder N, Schmitt A, Perren A, Dettmer MS, Haglund C, Arola J, Lundin J. External validation of a deep learning-based algorithm for detection of tall cells in papillary thyroid carcinoma: A multicenter study. J Pathol Inform 2024; 15:100366. [PMID: 38425542 PMCID: PMC10901856 DOI: 10.1016/j.jpi.2024.100366] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 09/25/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
The tall cell subtype (TC-PTC) is an aggressive subtype of papillary thyroid carcinoma (PTC). The TC-PTC is defined as a PTC comprising at least 30% epithelial cells that are three times as tall as they are wide. In practice, this definition is difficult to adhere to, resulting in high inter-observer variability. In this multicenter study, we validated a previously trained deep learning (DL)-based algorithm for detection of tall cells on 160 externally collected hematoxylin and eosin (HE)-stained PTC whole-slide images. In a test set of 360 manual annotations of regions of interest from 18 separate tissue sections in the external dataset, the DL-based algorithm detected TCs with a sensitivity of 90.6% and a specificity of 88.5%. The DL algorithm detected non-TC areas with a sensitivity of 81.6% and a specificity of 92.9%. In the validation datasets, 20% and 30% TC thresholds correlated with a significantly shorter relapse-free survival. In conclusion, the DL algorithm detected TCs in unseen, external scanned HE tissue slides with high sensitivity and specificity without any retraining.
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Affiliation(s)
- Sebastian Stenman
- Institute for Molecular Medicine Finland – FIMM, University of Helsinki, Tukholmankatu 8, 00290 Helsinki, Finland
- HUSLAB, Department of Pathology, HUS Diagnostic Center, Helsinki University Hospital and University of Helsinki, Haartmaninkatu 3C, 000290 HUS Helsinki, Finland
- Department of Surgery, Helsinki University Hospital, Haartmaninkatu 4, 00290 Helsinki, Finland
| | - Sylvain Bétrisey
- Institute of Tissue Medicine and Pathology, University of Bern, Murtenstrasse 31, 3008 Bern, Switzerland
| | - Paula Vainio
- Department of Pathology, University of Turku, Turku University Hospital, Kiinamyllykatu 10, 20520 Turku, Finland
| | - Jutta Huvila
- Department of Pathology, University of Turku, Turku University Hospital, Kiinamyllykatu 10, 20520 Turku, Finland
| | - Mikael Lundin
- Institute for Molecular Medicine Finland – FIMM, University of Helsinki, Tukholmankatu 8, 00290 Helsinki, Finland
| | - Nina Linder
- Institute for Molecular Medicine Finland – FIMM, University of Helsinki, Tukholmankatu 8, 00290 Helsinki, Finland
- Institute of Pathology, Klinikum Stuttgart, Kriegsbergstraße 60, 70174 Stuttgart, Germany
| | - Anja Schmitt
- Institute of Tissue Medicine and Pathology, University of Bern, Murtenstrasse 31, 3008 Bern, Switzerland
| | - Aurel Perren
- Institute of Tissue Medicine and Pathology, University of Bern, Murtenstrasse 31, 3008 Bern, Switzerland
| | - Matthias S. Dettmer
- Institute of Tissue Medicine and Pathology, University of Bern, Murtenstrasse 31, 3008 Bern, Switzerland
- The Global Health & Migration Department of Women’s and Children’s Health, Uppsala University, 75185 Uppsala, Sweden
| | - Caj Haglund
- Department of Surgery, Helsinki University Hospital, Haartmaninkatu 4, 00290 Helsinki, Finland
- Research Programs Unit, Translational Cancer Medicine, University of Helsinki, Haartmaninkatu 4, 00290 Helsinki, Finland
| | - Johanna Arola
- HUSLAB, Department of Pathology, HUS Diagnostic Center, Helsinki University Hospital and University of Helsinki, Haartmaninkatu 3C, 000290 HUS Helsinki, Finland
| | - Johan Lundin
- Institute for Molecular Medicine Finland – FIMM, University of Helsinki, Tukholmankatu 8, 00290 Helsinki, Finland
- Department of Global Public Health, Karolinska Institutet, Norrbackagatan 4, 17176 Stockholm, Sweden
- iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
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Delle Chiaie L, Stolpner I, Dettmer MS, Baltz-Ghahremanpour K. Acute placental insufficiency two weeks after an asymptomatic COVID-19 maternal infection: the deleterious effects of the SARS-CoV-2 placentitis. Arch Gynecol Obstet 2024; 309:723-726. [PMID: 36912992 PMCID: PMC10009343 DOI: 10.1007/s00404-023-06991-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023]
Affiliation(s)
- Loredana Delle Chiaie
- Clinic of Obstetrics and Gynecology, Klinikum Stuttgart-Olgahospital/Frauenklinik, Kriegsbergstraße 62, 70174, Stuttgart, Germany.
| | - Ilona Stolpner
- Clinic of Obstetrics and Gynecology, Klinikum Stuttgart-Olgahospital/Frauenklinik, Kriegsbergstraße 62, 70174, Stuttgart, Germany
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Dettmer MS, Hürlimann S, Scheuble L, Vassella E, Perren A, Wicke C. Cribriform Morular Thyroid Carcinoma - Ultimobranchial Pouch-Related? Deep Molecular Insights of a Unique Case. Endocr Pathol 2023; 34:342-348. [PMID: 37249797 PMCID: PMC10511600 DOI: 10.1007/s12022-023-09775-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/16/2023] [Indexed: 05/31/2023]
Abstract
A 44-year-old female patient with a familial adenomatous polyposis (FAP) was diagnosed with a cribriform morular thyroid carcinoma (CMTC). We observed within the very necrotic tumor a small but distinct poorly differentiated carcinomatous component. As expected, next generation sequencing of both components revealed a homozygous APC mutation and in addition, a TERT promoter mutation. A TP53 mutation was found exclusively in the CMTC part, while the poorly differentiated component showed a clonal evolution, harboring an activating PIK3CA mutation and copy number gains of BRCA2, FGF23, FGFR1, and PIK3CB-alterations which are typically seen in squamous cell carcinoma. The mutational burden in both components was low, and there was no evidence for microsatellite instability. No mutations involving the mitogen-activated protein kinase (MAPK) pathway, typically seen in papillary thyroid carcinomas, were detected. Immunohistochemically, all tumor parts were negative for thyroglobulin, providing further evidence that this entity does not belong to the follicular epithelial cell-derived thyroid carcinoma group. CD5 was negative in the poorly differentiated component, making a relation to intrathyroidal thymic carcinoma rather unlikely. However, since this marker was seen in the morules, a loss in the poorly differentiated component and a relation to the ultimobranchial body cannot be excluded either. After total thyroidectomy and radioiodine ablation, the patient was disease-free with no residual tumor burden on 2-year follow-up.
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Affiliation(s)
- Matthias S. Dettmer
- Institute of Pathology, University of Bern, Bern, Switzerland
- Institute of Pathology, Klinikum Stuttgart, Kriegsbergstrasse 60, 70174 Stuttgart, Germany
| | | | | | - Erik Vassella
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Aurel Perren
- Institute of Pathology, University of Bern, Bern, Switzerland
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Reinhardt P, Giger R, Seifert E, Shelan M, Riggenbach E, Terribilini D, Joosten A, Schanne DH, Aebersold DM, Manser P, Dettmer MS, Simon C, Ozsahin EM, Moeckli R, Limacher A, Caparrotti F, Nair D, Bourhis J, Broglie MA, Al-Mamgani A, Elicin O. VoiceS: voice quality after transoral CO 2 laser surgery versus single vocal cord irradiation for unilateral stage 0 and I glottic larynx cancer-a randomized phase III trial. Trials 2022; 23:906. [PMID: 36303192 PMCID: PMC9615245 DOI: 10.1186/s13063-022-06841-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/21/2022] [Accepted: 10/14/2022] [Indexed: 11/10/2022] Open
Abstract
Background Surgery and radiotherapy are well-established standards of care for unilateral stage 0 and I early-stage glottic cancer (ESGC). Based on comparative studies and meta-analyses, functional and oncological outcomes after both treatment modalities are similar. Historically, radiotherapy (RT) has been performed by irradiation of the whole larynx. However, only the involved vocal cord is being treated with recently introduced hypofractionated concepts that result in 8 to 10-fold smaller target volumes. Retrospective data argues for an improvement in voice quality with non-inferior local control. Based on these findings, single vocal cord irradiation (SVCI) has been implemented as a routine approach in some institutions for ESGC in recent years. However, prospective data directly comparing SVCI with surgery is lacking. The aim of VoiceS is to fill this gap. Methods In this prospective randomized multi-center open-label phase III study with a superiority design, 34 patients with histopathologically confirmed, untreated, unilateral stage 0-I ESGC (unilateral cTis or cT1a) will be randomized to SVCI or transoral CO2-laser microsurgical cordectomy (TLM). Average difference in voice quality, measured by using the voice handicap index (VHI) will be modeled over four time points (6, 12, 18, and 24 months). Primary endpoint of this study will be the patient-reported subjective voice quality between 6 to 24 months after randomization. Secondary endpoints will include perceptual impression of the voice via roughness – breathiness – hoarseness (RBH) assessment at the above-mentioned time points. Additionally, quantitative characteristics of voice, loco-regional tumor control at 2 and 5 years, and treatment toxicity at 2 and 5 years based on CTCAE v.5.0 will be reported. Discussion To our knowledge, VoiceS is the first randomized phase III trial comparing SVCI with TLM. Results of this study may lead to improved decision-making in the treatment of ESGC. Trial registration ClinicalTrials.gov NCT04057209. Registered on 15 August 2019. Cantonal Ethics Committee KEK-BE 2019-01506 Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06841-5.
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Affiliation(s)
- Philipp Reinhardt
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Roland Giger
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Eberhard Seifert
- Division of Phoniatrics, Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Mohamed Shelan
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Elena Riggenbach
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Dario Terribilini
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Andreas Joosten
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Daniel H Schanne
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Daniel M Aebersold
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Peter Manser
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, 3010, Bern, Switzerland
| | - Matthias S Dettmer
- Department of Pathology, Klinikum Stuttgart, Kriegsbergstraße 60, 70174, Stuttgart, Germany.,Department of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland
| | - Christian Simon
- Department of Otolaryngology - Head and Neck Surgery, CHUV University of Lausanne, Rue du Bugnon, 2, 1011, Lausanne, Switzerland
| | - Esat M Ozsahin
- Department of Radiation Oncology, Lausanne University Hospital and Lausanne University, Rue du Bugnon, 21, 1011, Lausanne, Switzerland
| | - Raphaël Moeckli
- Institut of Radiation Physics, Lausanne University Hospital and Lausanne University, Rue du Grand-Pré 1, 1007, Lausanne, Switzerland
| | - Andreas Limacher
- Clinical Trials Unit Bern, University of Bern, Mittelstrasse 43, 3012, Bern, Switzerland
| | - Francesca Caparrotti
- Department of Radiation Oncology, Genève University Hospital, Rue Gabrielle-Perret-Gentil 4, 1205, Genève, Switzerland
| | - Deepa Nair
- Department of Head Neck Surgical Oncology, ACTREC, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, 400012, India
| | - Jean Bourhis
- Department of Radiation Oncology, Lausanne University Hospital and Lausanne University, Rue du Bugnon, 21, 1011, Lausanne, Switzerland
| | - Martina A Broglie
- Department of Head and Neck Surgery, University Hospital of Zurich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Abrahim Al-Mamgani
- Department of Radiation Oncology, Netherlands Cancer Institute/Antoni van Leeuwenhoek, 1066, Amsterdam, CX, Netherlands
| | - Olgun Elicin
- Department of Radiation Oncology, Bern University Hospital and University of Bern, Inselspital, Freiburgstrasse 18, 3010, Bern, Switzerland.
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Schwerzmann MC, Dettmer MS, Baumhoer D, Iizuka T, Suter VGA. A rare low-grade myofibroblastic sarcoma in lower jaw with the resemblance to benign lesions. BMC Oral Health 2022; 22:380. [PMID: 36064342 PMCID: PMC9446721 DOI: 10.1186/s12903-022-02381-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/21/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022] Open
Abstract
Background Low-grade myofibroblastic sarcoma (LGMS) is a rare solid infiltrative soft tissue tumor with a predilection for the head and neck region. Case presentation We report the diagnostic steps of a fast-growing lesion of the lower left jaw in a 45-year-old otherwise healthy woman. A first biopsy and subsequent histopathological examination showed potential differentials of a benign myofibroma, benign nodular fasciitis or an LGMS. This diagnostic overlap was a challenge for the decision of the further treatment approach. The treatment consisted of a segmental en bloc resection of the mandible including the second premolar, first and second molar. Histopathological examination of the resected tumor confirmed an LGMS. Conclusion The histopathologic resemblance of LGMS to a range of benign and reactive tumors may lead to misdiagnosis and mistreatment. The rarity of LGMS explains the lack of established treatment protocols. This case shows the importance of adequate clinical decisions, expertise in the histopathology of rare tumors and interdisciplinary exchange to achieve state-of-the-art patient management.
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Affiliation(s)
- Martina C Schwerzmann
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.,Clinic for Oral and Maxillofacial Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Matthias S Dettmer
- Institute of Pathology, University Bern, Bern, Switzerland.,Institute of Pathology, Klinikum Stuttgart, Stuttgart, Germany
| | - Daniel Baumhoer
- Bone Tumour Reference Center at the Institute of Pathology, University and University Hospital Basel, Basel, Switzerland
| | - Tateyuki Iizuka
- Department of Cranio-Maxillofacial Surgery, Bern University Hospital, Inselspital, Bern, Switzerland
| | - Valerie G A Suter
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.
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Castiglione R, Alidousty C, Holz B, Duerbaum N, Wittersheim M, Binot E, Merkelbach-Bruse S, Friedrichs N, Dettmer MS, Bosse A, Buettner R, Schultheis AM. MET-FISH Evaluation Algorithm: Proposal of a Simplified Method. J Cancer Sci Clin Ther 2022; 6:411-427. [PMID: 36713931 PMCID: PMC9878991 DOI: 10.26502/jcsct.5079180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
MET amplifications (METamp) occur in 5% of NSCLC and represent in most case mechanisms of resistance to ALK and/or EGFR-targeted therapies. METamp detection can be performed using different techniques, although Fluorescence In-Situ Hybridization (FISH) remains the gold-standard, especially in the context of subclonality. To date current evaluation algorithms of MET amplifications are time consuming. Aim of the study was to identify a faster, equally reliable diagnostic algorithm for the detection of METamp, which is currently classified in negativity and low/intermediate/high-level amplification. N=497 NSCLC cases with available MET-FISH data had been selected. The results based on the first evaluated 20 cells had been re-calculated and compared with the definitive results based on 60 cells. For n=464 (93.4%) identical results had been obtained when counting 20 cells instead of 60 cells. Thirty-three cases (5.6%) showed a discrepancy, leading to an incorrect upgrade to a higher diagnostic category (n=25) and to an incorrect downgrade (n=8). We propose a simplified, yet equally reliable MET FISH-algorithm: after accurate screening of the whole tumor slide, twenty tumor cells have to be evaluated and results calculated: If the result is negative, or if all criteria of high-level METamp are fulfilled, the case can be signed out as such. All other cases should be considered as equivocal and additional 40 cells have to be counted. Given that, reliable results can be obtained by counting 20 cells only and an "equivocal" category for cases that need further investigation have been clearly defined.
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Affiliation(s)
- Roberta Castiglione
- Institute of Pathology, Klinikum Stuttgart, Stuttgart, Germany
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
| | | | - Barbara Holz
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
| | - Nicolai Duerbaum
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
| | - Maike Wittersheim
- Institute of Pathology, Medizin Campus Bodensee, Friedrichshafen, Germany
| | - Elke Binot
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
| | | | | | | | - Alexander Bosse
- Institute of Pathology, Klinikum Stuttgart, Stuttgart, Germany
| | - Reinhard Buettner
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
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Mueller SA, Gauthier MEA, Blackburn J, Grady JP, Kratisek S, Dettmer MS, Dahlstrom JE, Lee CS, Luk P, Yu B, Giger R, Kummerfeld S, Clark J, Gupta R, Cowley MJ. Molecular patterns in salivary duct carcinoma identify prognostic subgroups. Oral Oncol 2021. [DOI: 10.1016/s1368-8375(21)00268-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Schurmann G, Zweifel M, Giger R, Rau TT, Vinzens S, Dettmer MS, Kurian Y. Granulocyte Colony-stimulating Factor Producing Oropharyngeal Squamous Cell Carcinoma. In Vivo 2021; 35:1785-1790. [PMID: 33910863 DOI: 10.21873/invivo.12438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/16/2021] [Accepted: 03/22/2021] [Indexed: 12/26/2022]
Abstract
CASE REPORT We report on the case of a 47-year old woman with granulocyte colony-stimulating factor (G-CSF)-producing relapsed oropharyngeal squamous cell cancer. Palliative immunotherapy with nivolumab was started. Absolute neutrophilic count increased during the course of immunotherapy and correlated with tumour progression. Under chemotherapy with weekly paclitaxel, dramatic tumour regression and decreasing absolute neutrophilic count were noted. G-CSF concentration in serum increased from 4.77 to 9.61 pg/ml during the final phase of tumour progression. Immunohistochemical staining of the initial biopsies showed that some of the tumour cells as well as infiltrating cells stained positively for G-CSF, and some of the tumour cells even stained positively for the G-CSF receptor. CONCLUSION Leukaemoid reaction in malignant disease with increased neutrophilic granulocytes has been shown to correlate with dismal prognosis in other tumours. The role of G-CSF in progression and prognosis of head and neck squamous cell carcinomas is still unclear but in patients with these tumours there seems also to be a correlation between elevated G-CSF and poor prognosis. Further systematic evaluation of G-CSF secretion in this tumour entity should clarify the role and potential treatment possibilities for these tumours.
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Affiliation(s)
| | - Martin Zweifel
- Department of Medical Oncology, Biel-Bienne, Switzerland;
| | - Roland Giger
- Department of Otorhinolaryngology, Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tilman T Rau
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | | | - Yojena Kurian
- Department of Medical Oncology, Biel-Bienne, Switzerland
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Jankovic J, Dettwiler M, Fernández MG, Tièche E, Hahn K, April-Monn S, Dettmer MS, Kessler M, Rottenberg S, Campos M. Validation of Immunohistochemistry for Canine Proteins Involved in Thyroid Iodine Uptake and Their Expression in Canine Follicular Cell Thyroid Carcinomas (FTCs) and FTC-Derived Organoids. Vet Pathol 2021; 58:1172-1180. [PMID: 34056980 DOI: 10.1177/03009858211018813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thyrotropin receptor (TSHR), sodium iodide symporter (NIS), pendrin, and thyroid peroxidase (TPO) are essential for the uptake of iodine by follicular thyroid cells. The aim of this study was to establish immunohistochemistry (IHC) protocols for TSHR, NIS, pendrin, and TPO in canine tissues and characterize their expression in organoids derived from canine follicular cell thyroid carcinoma (FTC) and in the respective primary tumors. This constitutes a fundamental step to establish organoids as a model to study the uptake of iodine in canine FTC. Commercially available antibodies directed against human proteins were selected. Antibody specificity was confirmed by western blot using lysates of the HTori-3 human thyroid cell line and healthy canine thyroid gland. IHC was validated using HTori-3 cells and a set of canine normal tissues including healthy thyroid gland. The expression of TSHR, NIS, pendrin, and TPO was evaluated in 3 organoid lines derived from FTC and respective primary tumors. All 4 antibodies produced specific bands by western blot and cytoplasmic labeling in follicular cells by IHC in both human HTori-3 cells and canine thyroid gland. NIS also showed basolateral membrane immunolabeling in follicular cells. All 4 proteins were highly expressed in organoids derived from FTC. The expression was similar or higher compared to the primary tumors. The results of this study characterize organoids derived from canine FTC as a suitable in vitro model to investigate iodine uptake, opening new research possibilities in the field of canine thyroid cancer therapy.
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10
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Abstract
Background: Several mechanisms likely cooperate with the mitogen-activated protein (MAP)-kinase pathway to promote cancer progression in the thyroid. One putative pathway is NOTCH signaling, which is implicated in several other malignancies. In thyroid cancer, data regarding the role of the NOTCH pathway are insufficient and even contradictory. Methods: A BRAFV600E-driven papillary thyroid carcinoma (PTC) mouse model was subjected to NOTCH pathway genetic alterations, and the tumor burden was followed by ultrasound. Further analyses were performed on PTC cell lines or noncancerous cells transfected with NOTCHIC or BRAFV600E, which were then subjected to pharmacological treatment with MAP-kinase or NOTCH pathway inhibitors. Results: The presence of the BRAFV600E mutation coupled with overexpression of the NOTCH intracellular domain led to significantly bigger thyroid tumors in mice, to a more aggressive carcinoma, and decreased overall survival. Although more cystic, the tumors did not progress into anaplastic thyroid carcinomas. On the contrary, the deletion of RBP-jκ (a major cofactor involved in NOTCH signaling) did not alter the phenotype in mice. BRAFV600E-mutated PTC cell lines were resistant to pharmacological inhibition of the NOTCH pathway. Inhibition of MEK1/2 uncovered a predominant effect on Hes1/Hey1 transcription compared with NOTCH inhibition in BRAFV600E-mutated cell lines. Finally, γ-secretase activity and γ-secretase subunit transcription levels were dependent on ERK activation. Our findings suggest that MAP-kinase activity overrides the NOTCH pathway in the context of thyroid cancer. Conclusions: The interaction between the BRAF and NOTCH pathways demonstrates that the BRAFV600E mutation might bypass NOTCH and exert a strong positive effect on NOTCH downstream targets in thyroid carcinoma.
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Affiliation(s)
- Florian Traversi
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bern, Switzerland
| | - Amandine Stooss
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bern, Switzerland
| | | | - Roch-Philippe Charles
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bern, Switzerland
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11
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Stolp B, Thelen F, Ficht X, Altenburger LM, Ruef N, Inavalli VVGK, Germann P, Page N, Moalli F, Raimondi A, Keyser KA, Seyed Jafari SM, Barone F, Dettmer MS, Merkler D, Iannacone M, Sharpe J, Schlapbach C, Fackler OT, Nägerl UV, Stein JV. Salivary gland macrophages and tissue-resident CD8 + T cells cooperate for homeostatic organ surveillance. Sci Immunol 2020; 5:5/46/eaaz4371. [PMID: 32245888 DOI: 10.1126/sciimmunol.aaz4371] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 03/10/2020] [Indexed: 01/26/2023]
Abstract
It is well established that tissue macrophages and tissue-resident memory CD8+ T cells (TRM) play important roles for pathogen sensing and rapid protection of barrier tissues. In contrast, the mechanisms by which these two cell types cooperate for homeostatic organ surveillance after clearance of infections is poorly understood. Here, we used intravital imaging to show that TRM dynamically followed tissue macrophage topology in noninflamed murine submandibular salivary glands (SMGs). Depletion of tissue macrophages interfered with SMG TRM motility and caused a reduction of interepithelial T cell crossing. In the absence of macrophages, SMG TRM failed to cluster in response to local inflammatory chemokines. A detailed analysis of the SMG microarchitecture uncovered discontinuous attachment of tissue macrophages to neighboring epithelial cells, with occasional macrophage protrusions bridging adjacent acini and ducts. When dissecting the molecular mechanisms that drive homeostatic SMG TRM motility, we found that these cells exhibit a wide range of migration modes: In addition to chemokine- and adhesion receptor-driven motility, resting SMG TRM displayed a remarkable capacity for autonomous motility in the absence of chemoattractants and adhesive ligands. Autonomous SMG TRM motility was mediated by friction and insertion of protrusions into gaps offered by the surrounding microenvironment. In sum, SMG TRM display a unique continuum of migration modes, which are supported in vivo by tissue macrophages to allow homeostatic patrolling of the complex SMG architecture.
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Affiliation(s)
- Bettina Stolp
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland.,Department for Infectious Diseases, Integrative Virology, Center for Integrative Infectious Disease Research, University Hospital Heidelberg, Im Neuenheimer Feld 344, 69120 Heidelberg, Germany
| | - Flavian Thelen
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Xenia Ficht
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Lukas M Altenburger
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Nora Ruef
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland
| | - V V G Krishna Inavalli
- University of Bordeaux, 33700 Bordeaux, France.,Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33077 Bordeaux, France
| | - Philipp Germann
- EMBL Barcelona, Dr. Aiguader 88, 08003 Barcelona, Spain.,Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain
| | - Nicolas Page
- Department of Pathology and Immunology, Division of Clinical Pathology, University and University Hospitals of Geneva, 1211 Geneva, Switzerland
| | | | | | - Kirsten A Keyser
- Institute for Virology, OE5230, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - S Morteza Seyed Jafari
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Francesca Barone
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | | | - Doron Merkler
- Department of Pathology and Immunology, Division of Clinical Pathology, University and University Hospitals of Geneva, 1211 Geneva, Switzerland
| | | | - James Sharpe
- EMBL Barcelona, Dr. Aiguader 88, 08003 Barcelona, Spain.,Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Christoph Schlapbach
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Oliver T Fackler
- Department for Infectious Diseases, Integrative Virology, Center for Integrative Infectious Disease Research, University Hospital Heidelberg, Im Neuenheimer Feld 344, 69120 Heidelberg, Germany
| | - U Valentin Nägerl
- University of Bordeaux, 33700 Bordeaux, France.,Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33077 Bordeaux, France
| | - Jens V Stein
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland.
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12
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Di Domenico A, Pipinikas CP, Maire RS, Bräutigam K, Simillion C, Dettmer MS, Vassella E, Thirlwell C, Perren A, Marinoni I. Epigenetic landscape of pancreatic neuroendocrine tumours reveals distinct cells of origin and means of tumour progression. Commun Biol 2020; 3:740. [PMID: 33288854 PMCID: PMC7721725 DOI: 10.1038/s42003-020-01479-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
Recent data suggest that Pancreatic Neuroendocrine Tumours (PanNETs) originate from α- or β-cells of the islets of Langerhans. The majority of PanNETs are non-functional and do not express cell-type specific hormones. In the current study we examine whether tumour DNA methylation (DNAme) profiling combined with genomic data is able to identify cell of origin and to reveal pathways involved in PanNET progression. We analyse genome-wide DNAme data of 125 PanNETs and sorted α- and β-cells. To confirm cell identity, we investigate ARX and PDX1 expression. Based on epigenetic similarities, PanNETs cluster in α-like, β-like and intermediate tumours. The epigenetic similarity to α-cells progressively decreases in the intermediate tumours, which present unclear differentiation. Specific transcription factor methylation and expression vary in the respective α/β-tumour groups. Depending on DNAme similarity to α/β-cells, PanNETs have different mutational spectra, stage of the disease and prognosis, indicating potential means of PanNET progression.
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Affiliation(s)
- Annunziata Di Domenico
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3010, Bern, Switzerland
| | | | - Renaud S Maire
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
| | - Konstantin Bräutigam
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
| | - Cedric Simillion
- Bioinformatics and Computational Biology, University of Bern, Baltzerstrasse 6, 3012, Bern, Switzerland
| | - Matthias S Dettmer
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
| | - Erik Vassella
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
| | - Chrissie Thirlwell
- UCL Cancer Institute, 72, Huntley Street, London, WC1E 6JD, UK
- University of Exeter, College of Medicine and Health, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Aurel Perren
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland
| | - Ilaria Marinoni
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3008, Bern, Switzerland.
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13
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Hewer E, Phour J, Gutt-Will M, Schucht P, Dettmer MS, Vassella E. TERT Promoter Mutation Analysis to Distinguish Glioma From Gliosis. J Neuropathol Exp Neurol 2020; 79:430-436. [PMID: 32068851 DOI: 10.1093/jnen/nlaa004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/12/2019] [Accepted: 01/21/2020] [Indexed: 12/14/2022] Open
Abstract
Among the most challenging diagnostic issues in surgical neuropathology is the distinction between scant infiltration by diffuse gliomas and reactive gliosis. The best documented ancillary marker to establish a definitive diagnosis of glioma in this setting is the identification of hotspot mutations in the isocitrate dehydrogenase 1 and 2 (IDH1/IDH2) genes, which is limited, however, by the low prevalence of these mutations in gliomas of elderly adults. Since telomerase reverse transcriptase (TERT) promoter mutations are present in the vast majority of IDH-wildtype diffuse gliomas, we hypothesized that combined analysis of IDH and TERT might overcome these limitations. For this purpose, we analyzed a series of non-neoplastic and neoplastic CNS samples for the prevalence of TERT hotspot mutations. TERT mutations were identified in none out of 58 (0%) reactive gliosis samples, and in 91 out of 117 (78%) IDH-wildtype gliomas. Based on a series of 200 consecutive diffuse gliomas, we found that IDH mutation analysis alone had a sensitivity of 28% (63% and 12%, respectively, in patients below and above age of 50) for detection of gliomas, whereas a combined analysis of IDH and TERT was 85% sensitive (87% and 84%, respectively, below and above age of 50). In sum, our findings suggest that TERT promoter mutation analysis contributes favorably to a molecular panel in cases equivocal for glioma versus gliosis on morphological grounds, especially in patients above age of 50, in which IDH analysis alone performs poorly.
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Affiliation(s)
| | | | - Marielena Gutt-Will
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Philippe Schucht
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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14
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Abstract
Poorly differentiated thyroid carcinomas (PDTCs) are a rare subtype of thyroid carcinomas that are biologically situated between well-differentiated papillary/follicular thyroid carcinomas and anaplastic thyroid carcinomas (ATCs). The diagnosis of conventional as well as oncocytic poorly differentiated thyroid carcinoma is difficult and often missed in daily routine. The current WHO criteria to allow the diagnosis of PDTCs are based on the results of a consensus meeting held in Turin in 2006. Even a minor poorly differentiated component of only 10%of a given carcinoma significantly affects patient prognosis and the oncocytic subtype may even have a worse outcome. Immunohistochemistry is not much help and is mostly used to exclude a medullary thyroid carcinoma with calcitonin and to establish a follicular cell of origin via thyroglobulin staining. Due to the concept of stepwise dedifferentiation, there is a vast overlap of different molecular alterations like BRAF, RAS, CTNNB1, TP53 and others between different thyroid carcinoma subtypes. A distinctive molecular tumor profile is therefore currently not available. PDTCs have a unique miRNA signature, which separates them from other thyroid carcinomas. The average relapse free survival is less than one year and about 50% of patients die of the disease. Modern tyrosine kinase inhibitors offer in conjunction with powerful molecular diagnostic new chances in these difficult to treat carcinomas.
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Affiliation(s)
- M S Dettmer
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland.
| | - A Schmitt
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland
| | - P Komminoth
- Institute of Pathology, City Hospital Triemli, 8063, Zürich, Switzerland
| | - A Perren
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland
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15
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Hewer E, Banz Y, Knecht U, Dettmer MS, Vassella E. Seminal vesicle carcinoma presenting with malignant ascites. Diagn Cytopathol 2020; 48:785-786. [PMID: 32352654 DOI: 10.1002/dc.24451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/25/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Ekkehard Hewer
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Yara Banz
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Urspeter Knecht
- Department of Radiology and Neuroradiology, Spital Emmental, Burgdorf, Switzerland
| | | | - Erik Vassella
- Institute of Pathology, University of Bern, Bern, Switzerland
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16
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Sheppard SC, Giger R, Bojaxhiu B, Sachpekidis C, Dammann F, Dettmer MS, Arnold A, Wartenberg J, Nisa L. Multimodal Imaging With Positron Emission Tomography/Computed Tomography and Magnetic Resonance Imaging to Detect Extracapsular Extension in Head and Neck Cancer. Laryngoscope 2020; 131:E163-E169. [PMID: 32142169 DOI: 10.1002/lary.28602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/22/2020] [Accepted: 02/10/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVES/HYPOTHESIS To assess the ability of specific positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI) features to detect extracapsular extension (ECE) in head and neck squamous cell carcinoma (HNSCC) patients. STUDY DESIGN Retrospective study in a tertiary certified university cancer institute. METHODS We performed a review of patients with advanced HNSCC at Bern University Hospital between 2014 and 2018. Patients with pretherapeutic PET/CT and/or MRI who underwent neck dissection were included, with 212 patients fulfilling inclusion criteria. Blinded evaluation of specific PET/CT and MRI features with respect to presence of ECE was performed. Histopathological examination of neck dissection specimens was used as the gold standard to determine ECE status. RESULTS Out of the 212 included patients, 184 had PET/CT, 186 MRI, and 158 both modalities. Overall clinical stage IV (odds ratio [OR]: 2.26, 95% confidence interval [CI]: 2.25-11.74), ill-defined margins in both PET/CT and MRI (OR: 3.48, 95% CI: 1.21-9.98 and OR: 2.14, 95% CI: 0.94-4.89, respectively), and a maximum standardized uptake value ≥ 10 (OR: 5.44, 95% CI: 1.21-9.98) were all significant independent predictors of ECE. When combined, these four features led to a cumulative score able to predict ECE status with an accuracy of 91.43%. CONCLUSIONS The current findings indicate specific features in PET/CT and MRI are potential predictors of ECE status and may help in pretherapeutic stratification in HNSCC. LEVEL OF EVIDENCE 4 Laryngoscope, 131:E163-E169, 2021.
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Affiliation(s)
- Sean C Sheppard
- Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Roland Giger
- Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Beat Bojaxhiu
- Institute of Nuclear Medicine, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Christos Sachpekidis
- Institute of Nuclear Medicine, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Florian Dammann
- Department of Diagnostic, Interventional, and Pediatric Radiology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | | | - Andreas Arnold
- Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Jan Wartenberg
- Institute of Nuclear Medicine, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Lluís Nisa
- Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Biomedical Research, University of Bern, Bern, Switzerland
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17
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Nisa L, Francica P, Giger R, Medo M, Elicin O, Friese-Hamim M, Wilm C, Stroh C, Bojaxhiu B, Quintin A, Caversaccio MD, Dettmer MS, Buchwalder M, Brodie TM, Aebersold DM, Zimmer Y, Carey TE, Medová M. Targeting the MET Receptor Tyrosine Kinase as a Strategy for Radiosensitization in Locoregionally Advanced Head and Neck Squamous Cell Carcinoma. Mol Cancer Ther 2019; 19:614-626. [PMID: 31744898 DOI: 10.1158/1535-7163.mct-18-1274] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 08/19/2019] [Accepted: 11/14/2019] [Indexed: 11/16/2022]
Abstract
Radiotherapy (RT) along with surgery is the mainstay of treatment in head and neck squamous cell carcinoma (HNSCC). Radioresistance represents a major source of treatment failure, underlining the urgent necessity to explore and implement effective radiosensitization strategies. The MET receptor widely participates in the acquisition and maintenance of an aggressive phenotype in HNSCC and modulates the DNA damage response following ionizing radiation (IR). Here, we assessed MET expression and mutation status in primary and metastatic lesions within a cohort of patients with advanced HNSCC. Moreover, we investigated the radiosensitization potential of the MET inhibitor tepotinib in a panel of cell lines, in vitro and in vivo, as well as in ex vivo patient-derived organotypic tissue cultures (OTC). MET was highly expressed in 62.4% of primary tumors and in 53.6% of lymph node metastases (LNM), and in 6 of 9 evaluated cell lines. MET expression in primaries and LNMs was significantly associated with decreased disease control in univariate survival analyses. Tepotinib abrogated MET phosphorylation and to distinct extent MET downstream signaling. Pretreatment with tepotinib resulted in variable radiosensitization, enhanced DNA damage, cell death, and G2-M-phase arrest. Combination of tepotinib with IR led to significant radiosensitization in one of two tested in vivo models. OTCs revealed differential patterns of response toward tepotinib, irradiation, and combination of both modalities. The molecular basis of tepotinib-mediated radiosensitization was studied by a CyTOF-based single-cell mass cytometry approach, which uncovered that MET inhibition modulated PI3K activity in cells radiosensitized by tepotinib but not in the resistant ones.
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Affiliation(s)
- Lluís Nisa
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Paola Francica
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Roland Giger
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Matúš Medo
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Olgun Elicin
- Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Manja Friese-Hamim
- Translational Innovation Platform Oncology, Merck HealthCare KGaA, Darmstadt, Germany
| | - Claudia Wilm
- Translational Innovation Platform Oncology, Merck HealthCare KGaA, Darmstadt, Germany
| | - Christopher Stroh
- Translational Innovation Platform Oncology, Merck HealthCare KGaA, Darmstadt, Germany
| | - Beat Bojaxhiu
- Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Aurélie Quintin
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Marco D Caversaccio
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | | | - Mélanie Buchwalder
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Institute of Pathology, University of Bern, Bern, Switzerland
| | - Tess M Brodie
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Mass Cytometry Facility, University of Zurich, Zurich, Switzerland
| | - Daniel M Aebersold
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Yitzhak Zimmer
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
| | - Thomas E Carey
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan School of Medicine, Ann Arbor, Michigan.,Comprehensive Cancer Center, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Michaela Medová
- Department for BioMedical Research, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland. .,Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
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18
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Meda Spaccamela V, Valencia RG, Pastukhov O, Duppenthaler A, Dettmer MS, Erb J, Steiner UC, Hillinger S, Speckmann C, Ehl S, Reichenbach J, Siler U. High Levels of IL-18 and IFN-γ in Chronically Inflamed Tissue in Chronic Granulomatous Disease. Front Immunol 2019; 10:2236. [PMID: 31681257 PMCID: PMC6813411 DOI: 10.3389/fimmu.2019.02236] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 05/28/2019] [Accepted: 09/04/2019] [Indexed: 12/17/2022] Open
Abstract
Background: Chronic granulomatous disease (CGD) is caused by a malfunctioning nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex in phagocytes, leading to impaired bacterial and fungal killing and hyperinflammation. Objective: To characterize macrophage subsets and cytokine/chemokine signaling loops involved in CGD tissue hyperinflammation. Methods: Cytokine/chemokine production and surface marker expression were analyzed in inflamed tissue of four CGD patients and compared to cytokine/chemokine released by CGD macrophages upon priming to different macrophage subpopulations. Furthermore, the re-priming capacity of CGD pro-inflammatory M1 to M2a anti-inflammatory macrophages was evaluated. Results: In human CGD inflammatory tissue, IL-18 and IFN-γ were detected in significant quantity. Immunofluorescence analysis identified macrophages as one source of IL-18 in inflamed tissue. In vitro, CGD macrophages could be primed and re-primed into all inflammatory/anti-inflammatory macrophage subpopulations. IL-18 was also released by M1 CGD and control macrophages. Conclusion: CGD pro-inflammatory M1 macrophages remain M1 primed in vivo. As CGD M1 macrophages can be re-primed to anti-inflammatory M2a phenotype in vitro, macrophages are kept in M1 state in vivo by a persistent pro-inflammatory environment. Our results suggest a paracrine signaling loop between M1 macrophage derived IL-18 and non-macrophage derived IFN-γ maintaining macrophage pro-inflammatory activity in CGD tissue.
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Affiliation(s)
- Virginia Meda Spaccamela
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Rocio G Valencia
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland
| | - Oleksandr Pastukhov
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Andrea Duppenthaler
- Unit of Pediatric Infectious Diseases, University Children's Hospital Bern, Bern, Switzerland
| | | | - Juliane Erb
- Center for Dentistry, University of Zurich, Zurich, Switzerland
| | - Urs C Steiner
- Department of Clinical Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Sven Hillinger
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Carsten Speckmann
- Faculty of Medicine, Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Institute for Immunodeficiency, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Stephan Ehl
- Faculty of Medicine, Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Institute for Immunodeficiency, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Janine Reichenbach
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.,Unit of Pediatric Infectious Diseases, University Children's Hospital Bern, Bern, Switzerland.,Center for Applied Biotechnology and Molecular Medicine, University Zurich, Zurich, Switzerland
| | - Ulrich Siler
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
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19
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Ansó J, Dür C, Apelt M, Venail F, Scheidegger O, Seidel K, Rohrbach H, Forterre F, Dettmer MS, Zlobec I, Weber K, Matulic M, Zoka-Assadi M, Huth M, Caversaccio M, Weber S. Prospective Validation of Facial Nerve Monitoring to Prevent Nerve Damage During Robotic Drilling. Front Surg 2019; 6:58. [PMID: 31632981 PMCID: PMC6781655 DOI: 10.3389/fsurg.2019.00058] [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: 04/18/2019] [Accepted: 09/09/2019] [Indexed: 11/30/2022] Open
Abstract
Facial nerve damage has a detrimental effect on a patient's life, therefore safety mechanisms to ensure its preservation are essential during lateral skull base surgery. During robotic cochlear implantation a trajectory passing the facial nerve at <0.5 mm is needed. Recently a stimulation probe and nerve monitoring approach were developed and introduced clinically, however for patient safety no trajectory was drilled closer than 0.4 mm. Here we assess the performance of the nerve monitoring system at closer distances. In a sheep model eight trajectories were drilled to test the setup followed by 12 trajectories during which the ENT surgeon relied solely on the nerve monitoring system and aborted the robotic drilling process if intraoperative nerve monitoring alerted of a distance <0.1 mm. Microcomputed tomography images and histopathology showed prospective use of the technology prevented facial nerve damage. Facial nerve monitoring integrated in a robotic system supports the surgeon's ability to proactively avoid damage to the facial nerve during robotic drilling in the mastoid.
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Affiliation(s)
- Juan Ansó
- ARTORG Center for Biomedical Engineering, University of Bern, Bern, Switzerland
| | - Cilgia Dür
- Department of Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
| | - Mareike Apelt
- ARTORG Center for Biomedical Engineering, University of Bern, Bern, Switzerland
| | - Frederic Venail
- Department of Otolaryngology-Head and Neck Surgery, University Hospital of Montpellier, Montpellier, France
| | | | - Kathleen Seidel
- Department of Neurosurgery, Inselspital, University of Bern, Bern, Switzerland
| | - Helene Rohrbach
- Vetsuisse Faculty, Veterinary Hospital, University of Bern, Bern, Switzerland
| | - Franck Forterre
- Vetsuisse Faculty, Veterinary Hospital, University of Bern, Bern, Switzerland
| | | | - Inti Zlobec
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | | | | | - Markus Huth
- Department of Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
| | - Marco Caversaccio
- Department of Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
| | - Stefan Weber
- ARTORG Center for Biomedical Engineering, University of Bern, Bern, Switzerland
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20
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Schürch CM, Roelli MA, Forster S, Wasmer MH, Brühl F, Maire RS, Di Pancrazio S, Ruepp MD, Giger R, Perren A, Schmitt AM, Krebs P, Charles RP, Dettmer MS. Targeting CD47 in Anaplastic Thyroid Carcinoma Enhances Tumor Phagocytosis by Macrophages and Is a Promising Therapeutic Strategy. Thyroid 2019; 29:979-992. [PMID: 30938231 PMCID: PMC6648226 DOI: 10.1089/thy.2018.0555] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: Anaplastic thyroid carcinoma (ATC) is one of the most aggressive human cancers, with a median survival of only three to six months. Standard treatment options and even targeted therapies have so far failed to improve long-term overall survival. Thus, novel treatment modalities for ATC, such as immunotherapy, are urgently needed. CD47 is a "don't eat me" signal, which prevents cancer cells from phagocytosis by binding to signal regulatory protein alpha on macrophages. So far, the role of macrophages and the CD47-signal regulatory protein alpha signaling axis in ATC is not well understood. Methods: This study analyzed 19 primary human ATCs for macrophage markers, CD47 expression, and immune checkpoints by immunohistochemistry. ATC cell lines and a fresh ATC sample were assessed by flow cytometry for CD47 expression and macrophage infiltration, respectively. CD47 was blocked in phagocytosis assays of co-cultured macrophages and ATC cell lines. Anti-CD47 antibody treatment was administered to ATC cell line xenotransplanted immunocompromised mice, as well as to tamoxifen-induced ATC double-transgenic mice. Results: Human ATC samples were heavily infiltrated by CD68- and CD163-expressing tumor-associated macrophages (TAMs), and expressed CD47 and calreticulin, the dominant pro-phagocytic molecule. In addition, ATC tissues expressed the immune checkpoint molecules programmed cell death 1 and programmed death ligand 1. Blocking CD47 promoted the phagocytosis of ATC cell lines by macrophages in vitro. Anti-CD47 antibody treatment of ATC xenotransplanted mice increased the frequency of TAMs, enhanced the expression of macrophage activation markers, augmented tumor cell phagocytosis, and suppressed tumor growth. In double-transgenic ATC mice, CD47 was expressed on tumor cells, and blocking CD47 increased TAM frequencies. Conclusions: Targeting CD47 or CD47 in combination with programmed cell death 1 may potentially improve the outcomes of ATC patients and may represent a valuable addition to the current standard of care.
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Affiliation(s)
- Christian M. Schürch
- Institute of Pathology, University of Bern, Bern, Switzerland
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California
- Address correspondence to: Christian M. Schürch, MD, PhD, Baxter Laboratory for Stem Cell Biology, Stanford University School of Medicine, 269 Campus Drive, CCSR 3220, Stanford, CA 94305
| | - Matthias A. Roelli
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Stefan Forster
- Institute of Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- Department of BioMedical Research, University of Bern, Bern, Switzerland
| | - Marie-Hélène Wasmer
- Institute of Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Frido Brühl
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Renaud S. Maire
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Sergio Di Pancrazio
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Marc-David Ruepp
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
- United Kingdom Dementia Research Institute Centre, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, United Kingdom
| | - Roland Giger
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Aurel Perren
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Anja M. Schmitt
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Philippe Krebs
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Roch-Philippe Charles
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Matthias S. Dettmer
- Institute of Pathology, University of Bern, Bern, Switzerland
- Matthias S. Dettmer, MD, Institute of Pathology, University of Bern, Murtenstrasse 31, 3008 Bern, Switzerland
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21
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Boos LA, Schmitt A, Moch H, Komminoth P, Simillion C, Marinoni I, Nikiforov YE, Nikiforova MN, Perren A, Dettmer MS. MiRNAs Are Involved in Tall Cell Morphology in Papillary Thyroid Carcinoma. Cancers (Basel) 2019; 11:cancers11060885. [PMID: 31242620 PMCID: PMC6628239 DOI: 10.3390/cancers11060885] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/17/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 01/06/2023] Open
Abstract
Five percent of papillary thyroid carcinomas (PTC) show an adverse clinical outcome (ACO). The tall cell variant of papillary thyroid carcinomas (TCV) is a good predictor of an ACO, however, the identification of tall-cells is subjective. Micro RNAs are short non-coding ribonucleic acids (miRNA). Their expression in PTC could be a powerful, more objective predictor of prognosis. METHODS Forty-four PTC underwent miRNA profiling, twenty-four of them were TCV. The miRNA dataset was validated by analysis of expression of known target proteins (vascular endothelial growth factor (VEGF) and phosphatase and tensin homolog (PTEN)) in 125 patients including 48 TCV and 57 with an ACO. RESULTS One hundred and forty-nine miRNAs were significantly associated with an ACO, seventy-one of them with TC-morphology. Twenty-two miRNAs were identified as targets for VEGF and thirty-two as targets for PTEN. In univariate and multivariable analysis, reduced expression of PTEN and an increased expression of VEGF were associated with shorter relapse free survival. A classifier, including TC-morphology, pT-stage, VEGF, and PTEN, predicted relapse with an 80% accuracy. CONCLUSIONS Some miRNAs predict outcome in PTC and are involved in TC-morphology in PTC. These miRNAs may serve as more objective indicators of an ACO than tall cell morphology. PTEN and VEGF protein expression are prognostically relevant and are at least partially regulated by miRNAs.
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Affiliation(s)
- Laura A Boos
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
| | - Anja Schmitt
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
| | - Holger Moch
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland.
| | - Paul Komminoth
- Institute of Surgical Pathology, Stadtspital Triemli, Birmensdorferstr. 497, 8063 Zürich, Switzerland.
| | - Cedric Simillion
- Department of BioMedical Research, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
| | - Ilaria Marinoni
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
| | - Yuri E Nikiforov
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
| | - Marina N Nikiforova
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
| | - Aurel Perren
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
| | - Matthias S Dettmer
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH 3008 Bern, Switzerland.
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22
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Abstract
Poorly differentiated thyroid carcinomas (PDTCs) are a rare subtype of thyroid carcinomas that are biologically situated between well-differentiated papillary/follicular thyroid carcinomas and anaplastic thyroid carcinomas (ATCs).The diagnosis of conventional as well as oncocytic poorly differentiated thyroid carcinoma is difficult and often missed in daily routine. The current WHO criteria to allow the diagnosis of PDTCs are based on the results of a consensus meeting held in Turin in 2006. Even a minor poorly differentiated component of only 10% of a given carcinoma significantly affects patient prognosis and the oncocytic subtype may even have a worse outcome. Immunohistochemistry is not much help and is mostly used to exclude a medullary thyroid carcinoma with calcitonin and to establish a follicular cell of origin via thyroglobulin staining.Due to the concept of stepwise dedifferentiation, there is a vast overlap of different molecular alterations like BRAF, RAS, CTNNB1, TP53 and others between different thyroid carcinoma subtypes. A distinctive molecular tumor profile is therefore currently not available.PDTCs have a unique miRNA signature, which separates them from other thyroid carcinomas.The average relapse free survival is less than one year and about 50% of patients die of the disease. Modern tyrosine kinase inhibitors offer in conjunction with powerful molecular diagnostic new chances in these difficult to treat carcinomas.
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Affiliation(s)
- M S Dettmer
- Institut für Pathologie, Universität Bern, Murtenstraße 31, 3008, Bern, Schweiz.
| | - A Schmitt
- Institut für Pathologie, Universität Bern, Murtenstraße 31, 3008, Bern, Schweiz
| | - P Komminoth
- Institut für Pathologie, Stadtspital Triemli, Birmensdorferstraße 497, 8063, Zürich, Schweiz
| | - A Perren
- Institut für Pathologie, Universität Bern, Murtenstraße 31, 3008, Bern, Schweiz
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23
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Stivala S, Codilupi T, Brkic S, Baerenwaldt A, Ghosh N, Hao-Shen H, Dirnhofer S, Dettmer MS, Simillion C, Kaufmann BA, Chiu S, Keller M, Kleppe M, Hilpert M, Buser AS, Passweg JR, Radimerski T, Skoda RC, Levine RL, Meyer SC. Targeting compensatory MEK/ERK activation increases JAK inhibitor efficacy in myeloproliferative neoplasms. J Clin Invest 2019; 129:1596-1611. [PMID: 30730307 DOI: 10.1172/jci98785] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/29/2019] [Indexed: 12/18/2022] Open
Abstract
Constitutive JAK2 signaling is central to myeloproliferative neoplasm (MPN) pathogenesis and results in activation of STAT, PI3K/AKT, and MEK/ERK signaling. However, the therapeutic efficacy of current JAK2 inhibitors is limited. We investigated the role of MEK/ERK signaling in MPN cell survival in the setting of JAK inhibition. Type I and II JAK2 inhibition suppressed MEK/ERK activation in MPN cell lines in vitro, but not in Jak2V617F and MPLW515L mouse models in vivo. JAK2 inhibition ex vivo inhibited MEK/ERK signaling, suggesting that cell-extrinsic factors maintain ERK activation in vivo. We identified PDGFRα as an activated kinase that remains activated upon JAK2 inhibition in vivo, and PDGF-AA/PDGF-BB production persisted in the setting of JAK inhibition. PDGF-BB maintained ERK activation in the presence of ruxolitinib, consistent with its function as a ligand-induced bypass for ERK activation. Combined JAK/MEK inhibition suppressed MEK/ERK activation in Jak2V617F and MPLW515L mice with increased efficacy and reversal of fibrosis to an extent not seen with JAK inhibitors. This demonstrates that compensatory ERK activation limits the efficacy of JAK2 inhibition and dual JAK/MEK inhibition provides an opportunity for improved therapeutic efficacy in MPNs and in other malignancies driven by aberrant JAK-STAT signaling.
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Affiliation(s)
- Simona Stivala
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Tamara Codilupi
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Sime Brkic
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Anne Baerenwaldt
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Nilabh Ghosh
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Hui Hao-Shen
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Stephan Dirnhofer
- Department of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | | | - Cedric Simillion
- Department of BioMedical Research, University of Berne, Berne, Switzerland
| | - Beat A Kaufmann
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Sophia Chiu
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Matthew Keller
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Maria Kleppe
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Morgane Hilpert
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Andreas S Buser
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - Jakob R Passweg
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | | | - Radek C Skoda
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Ross L Levine
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Sara C Meyer
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland.,Division of Hematology, University Hospital Basel, Basel, Switzerland
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24
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Elicin O, Broglie MA, Fankhauser N, Stoeckli SJ, Pasche P, Reinhard A, Bongiovanni M, Huber GF, Morand GB, Soltermann A, Arnold A, Dettmer MS, Arnoux A, Stauffer E, Espeli V, Martucci F, Aebersold DM, Giger R. Comparison of contemporary staging systems for oropharynx cancer in a surgically treated multi‐institutional cohort. Head Neck 2018; 41:1395-1402. [DOI: 10.1002/hed.25574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 11/30/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Olgun Elicin
- Department of Radiation Oncology, Inselspital, Bern University HospitalUniversity of Bern Bern Switzerland
| | - Martina A. Broglie
- Department of Otorhinolaryngology, Head and Neck SurgeryKantonsspital St. Gallen St. Gallen Switzerland
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Hospital Zurich Zurich Switzerland
| | - Niklaus Fankhauser
- CTU Bern, and Institute of Social and Preventive Medicine (ISPM)University of Bern Bern Switzerland
| | - Sandro J. Stoeckli
- Department of Otorhinolaryngology, Head and Neck SurgeryKantonsspital St. Gallen St. Gallen Switzerland
| | - Philippe Pasche
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Hospital of Lausanne Lausanne Switzerland
| | - Antoine Reinhard
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Hospital of Lausanne Lausanne Switzerland
| | - Massimo Bongiovanni
- Service of Clinical PathologyLausanne University Hospital, Institute of Pathology Lausanne Switzerland
| | - Gerhard F. Huber
- Department of Otorhinolaryngology, Head and Neck SurgeryKantonsspital St. Gallen St. Gallen Switzerland
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Hospital Zurich Zurich Switzerland
| | - Grégoire B. Morand
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Hospital Zurich Zurich Switzerland
| | - Alex Soltermann
- Institute of Surgical PathologyUniversity Hospital of Zurich Zurich Switzerland
| | - Andreas Arnold
- Department of Otorhinolaryngology, Head and Neck SurgeryInselspital, Bern University Hospital Bern Switzerland
| | | | - André Arnoux
- Department of Otorhinolaryngology, Head and Neck SurgeryKantonsspital Aarau Aarau Switzerland
| | | | - Vittoria Espeli
- Oncology Institute of Southern Switzerland (IOSI) Bellinzona Switzerland
| | - Francesco Martucci
- Department of RadiooncologyOncology Institute of Southern Switzerland (IOSI) Bellinzona Switzerland
| | - Daniel M. Aebersold
- Department of Radiation Oncology, Inselspital, Bern University HospitalUniversity of Bern Bern Switzerland
| | - Roland Giger
- Department of Otorhinolaryngology, Head and Neck SurgeryInselspital, Bern University Hospital Bern Switzerland
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25
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ElMokh O, Taelman V, Radojewski P, Roelli MA, Stoss A, Dumont RA, Dettmer MS, Phillips WA, Walter MA, Charles RP. MEK Inhibition Induces Therapeutic Iodine Uptake in a Murine Model of Anaplastic Thyroid Cancer. J Nucl Med 2018; 60:917-923. [PMID: 30464041 DOI: 10.2967/jnumed.118.216721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/15/2018] [Indexed: 12/19/2022] Open
Abstract
Anaplastic thyroid carcinoma (ATC) is refractory to radioiodine therapy in part because of impaired iodine metabolism. We targeted the mitogen-activated protein kinase and phosphatidylinositol 3-kinase (PI3'K) pathways with the intent to induce radioiodine uptake for radioiodine treatment of ATC. Methods: Human ATC cells were used to evaluate the ability of pharmacologic inhibition of the mitogen-activated protein kinase and PI3'K pathways to induce radioiodine uptake. Thyrocyte-specific double-mutant BRAFV600E PIK3CAH1047R mice were treated with a MEK inhibitor followed by radioiodine treatment, and tumor burden was monitored by ultrasound imaging. Results: ATC cell lines showed an increase in sodium-iodine symporter transcription when treated with a MEK or BRAFV600E inhibitor alone and in combination with PI3'K inhibitor. This translated into a dose-dependent elevation of iodine uptake after treatment with a MEK inhibitor alone and in combination with a PI3'K inhibitor. In vivo, MEK inhibition but not BRAF or PI3'K inhibition upregulated sodium-iodine symporter transcription. This translated into a stable reduction of tumor burden when mice were treated with a MEK inhibitor before radioiodine administration. Conclusion: This study confirms the ability of MEK inhibition to induce iodine uptake in in vitro and in vivo models of ATC. The approach of using a MEK inhibitor before radioiodine treatment could readily be translated into clinical practice and provide a much-needed therapeutic option for patients with ATC.
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Affiliation(s)
- Oussama ElMokh
- Institute for Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Vincent Taelman
- Institute for Nuclear Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Piotr Radojewski
- Institute for Nuclear Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Matthias A Roelli
- Institute for Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Amandine Stoss
- Institute for Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Rebecca A Dumont
- Department of Radiology, University of California at San Francisco, San Francisco, California
| | | | - Wayne A Phillips
- Cancer Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Martin A Walter
- Institute for Nuclear Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Roch-Philippe Charles
- Institute for Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
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26
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Häfliger P, Graff J, Rubin M, Stooss A, Dettmer MS, Altmann KH, Gertsch J, Charles RP. The LAT1 inhibitor JPH203 reduces growth of thyroid carcinoma in a fully immunocompetent mouse model. J Exp Clin Cancer Res 2018; 37:234. [PMID: 30241549 PMCID: PMC6150977 DOI: 10.1186/s13046-018-0907-z] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/11/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The L-type amino acid transporter 1 (LAT1/SLC7A5) transports essential amino acids across the plasma membrane. While LAT1 is overexpressed in a variety of human neoplasms, its expression and its role in thyroid cancer is currently unknown. Anaplastic thyroid carcinoma (ATC) is a highly aggressive malignancy for which no effective therapy exists. The purpose of this study was to explore whether the inhibition of LAT1 in ATC would affect tumor growth both in vitro and in vivo. METHODS LAT1 was pharmacologically blocked by JPH203 in human ATC and papillary thyroid cancer (PTC) cell lines. The effects on proliferation and mTORC1 activity were addressed in vitro. A genetically engineered mouse model of ATC was used to address the effect of blocking LAT1 on tumor growth in vivo. SLC7A5 transcription was measured in patient-derived ATC samples to address the clinical relevance of the findings. RESULTS LAT1 block by JPH203 reduced proliferation and mTORC1 signaling in human thyroid cancer cell lines. SLC7A5 transcription was upregulated in ATC tissues derived from a genetically engineered mouse model and in ATC samples recovered from patients. JPH203 treatment induced thyroid tumor growth arrest in vivo in a fully immunocompetent mouse model of thyroid cancer. Additionally, analysis of publicly available datasets of thyroid carcinomas revealed that high LAT1 expression is associated with potentially untreatable PTC presenting reduced NIS/SLC5A5 transcription and with ATC. CONCLUSIONS These preclinical results show that LAT1 inhibition is a novel therapeutic approach in the context of thyroid cancers, and more interestingly in untreatable thyroid cancers.
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Affiliation(s)
- Pascal Häfliger
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bühlstrasse 28, CH-3012 Bern, Switzerland
- Present address: Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, USA
| | - Julien Graff
- Institute of Pharmaceutical Sciences, and Swiss National Center of Competence in Research (NCCR) TransCure, ETH Zürich, Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Matthias Rubin
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bühlstrasse 28, CH-3012 Bern, Switzerland
| | - Amandine Stooss
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bühlstrasse 28, CH-3012 Bern, Switzerland
| | - Matthias S. Dettmer
- Institute of Pathology, University of Bern, Murtenstrasse 31, CH-3008 Bern, Switzerland
| | - Karl-Heinz Altmann
- Institute of Pharmaceutical Sciences, and Swiss National Center of Competence in Research (NCCR) TransCure, ETH Zürich, Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Jürg Gertsch
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bühlstrasse 28, CH-3012 Bern, Switzerland
| | - Roch-Philippe Charles
- Institute of Biochemistry and Molecular Medicine, and Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, Bühlstrasse 28, CH-3012 Bern, Switzerland
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27
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Nisa L, Barras D, Medová M, Aebersold DM, Medo M, Poliaková M, Koch J, Bojaxhiu B, Eliçin O, Dettmer MS, Angelino P, Giger R, Borner U, Caversaccio MD, Carey TE, Ho L, McKee TA, Delorenzi M, Zimmer Y. Comprehensive Genomic Profiling of Patient-matched Head and Neck Cancer Cells: A Preclinical Pipeline for Metastatic and Recurrent Disease. Mol Cancer Res 2018; 16:1912-1926. [PMID: 30108165 DOI: 10.1158/1541-7786.mcr-18-0056] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/28/2018] [Accepted: 08/07/2018] [Indexed: 11/16/2022]
Abstract
Metastases and tumor recurrence have a major prognostic impact in head and neck squamous cell carcinoma (HNSCC); however, cellular models that comprehensively characterize metastatic and recurrent HNSCC are lacking. To this end, we obtained genomic, transcriptomic, and copy number profiles of the UM-SCC cell line panel, encompassing patient-matched metastatic and recurrent cells. UM-SCC cells recapitulate the most prevalent genomic alterations described in HNSCC, featuring common TP53, PI3K, NOTCH, and Hippo pathway mutations. This analysis identified a novel F977Y kinase domain PIK3CA mutation exclusively present in a recurrent cell line (UM-SCC14B), potentially conferring resistance to PI3K inhibitors. Small proline-rich protein 2A (SPRR2A), a protein involved in epithelial homeostasis and invasion, was one of the most consistently downregulated transcripts in metastatic and recurrent UM-SCC cells. Assessment of SPRR2A protein expression in a clinical cohort of patients with HNSCC confirmed common SPRR2A downregulation in primary tumors (61.9% of cases) and lymph node metastases (31.3%), but not in normal tissue. High expression of SPRR2A in lymph node metastases was, along with nonoropharyngeal location of the primary tumor, an independent prognostic factor for regional disease recurrence after surgery and radiotherapy (HR 2.81; 95% CI, 1.16-6.79; P = 0.02). These results suggest that SPRR2A plays a dual role in invasion and therapeutic resistance in HNSCC, respectively through its downregulation and overexpression. IMPLICATIONS: The current study reveals translationally relevant mechanisms underlying metastasis and recurrence in HNSCC and represents an adjuvant tool for preclinical research in this disease setting. Underlining its discovery potential this approach identified a PIK3CA-resistant mutation as well as SPRR2A as possible theragnostic markers.
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Affiliation(s)
- Lluís Nisa
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - David Barras
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Michaela Medová
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Daniel M Aebersold
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Matúš Medo
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michaela Poliaková
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jonas Koch
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Beat Bojaxhiu
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Olgun Eliçin
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Paolo Angelino
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Roland Giger
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Urs Borner
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Marco D Caversaccio
- Department of Otorhinolaryngology - Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thomas E Carey
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan School of Medicine, Ann Arbor, Michigan.,Comprehensive Cancer Center, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Liza Ho
- Division of Clinical Pathology, Geneva University Hospitals, Geneva, Switzerland
| | - Thomas A McKee
- Division of Clinical Pathology, Geneva University Hospitals, Geneva, Switzerland
| | - Mauro Delorenzi
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Ludwig Center for Cancer Research, University of Lausanne, Lausanne, Switzerland.,Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Yitzhak Zimmer
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. .,Department for BioMedical Research, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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28
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Abstract
RATIONALE There is evidence that parasitic helminths can ameliorate colitis in animal models and humans. Although infections with Hymenolepis sp. are clinically benign, the immunomodulatory interactions between host and parasite are largely unknown. PATIENT CONCERNS In this study we examined the intestinal mucosa of an adult asymptomatic patient harboring adult and larval dwarf tapeworms (Hymenolepis nana) who underwent surgery for an unrelated reason. INTERVENTIONS Routine histology and immunohistochemistry were performed to characterize the host's response to the parasite. Parasitic DNA was sequenced to identify the tapeworm species. DIAGNOSES Morphological and immunohistochemical studies showed a nearly complete absence of an anti-parasite host immune response. The outer surface of the parasite also showed prominent cross-reactivity with various tested leukocyte antigens. Our findings closely resemble experimentally obtained data from the H. diminuta-infected rat at the state of persistent colonization. OUTCOMES Cross-reactivity of parasite-borne molecules with anti-human-leukocyte antibodies indicates a potential functional role in active modulation of the host's immune response. LESSIONS We believe that better understanding of the host-cestode interaction will certainly extend our knowledge on auto-aggressive disorders such as inflammatory bowel disease and might provide potential treatment options.
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Affiliation(s)
- Juergen Hench
- Institute of Pathology, Cantonal Hospital Baselland, Liestal
- Department of Neuropathology, Institute of Pathology, University Hospital Basel, Basel
| | - Gieri Cathomas
- Institute of Pathology, Cantonal Hospital Baselland, Liestal
| | - Matthias S. Dettmer
- Institute of Pathology, Cantonal Hospital Baselland, Liestal
- Institute of Pathology, University of Bern, Bern, Switzerland
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29
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Hewer E, Prebil N, Berezowska S, Gutt-Will M, Schucht P, Dettmer MS, Vassella E. Diagnostic implications of TERT promoter mutation status in diffuse gliomas in a routine clinical setting. Virchows Arch 2017; 471:641-649. [PMID: 28823044 DOI: 10.1007/s00428-017-2216-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 07/21/2017] [Accepted: 08/07/2017] [Indexed: 12/24/2022]
Abstract
IDH (isocitrate dehydrogenase) gene mutations are present in most diffuse low-grade gliomas and define the clinico-pathological core of the respective morphologically defined entities. Conversely, according to the 2016 WHO classification, the majority of glioblastomas belong to the IDH-wildtype category, which is defined by exclusion. TERT (telomerase reverse transcriptase gene) promoter mutations have been suggested as a molecular marker for primary glioblastomas. We analyzed molecular, histopathological, and clinical profiles of a series of 110 consecutive diffuse gliomas (WHO grades II-IV) diagnosed at our institution, in which TERT promoter mutation analysis had been performed as part of diagnostic work-up. A diagnostic algorithm based on IDH, TERT, ATRX, H3F3A, and 1p19q co-deletion status resulted in a consistent molecular classification with only 14 (13%) marker-negative tumors. TERT promoter mutations were present in 77% of IDH-wildtype tumors. The TERT/IDH-wildtype category was highly enriched for tumors with unconventional clinical or histological features. Molecular classes were associated with distinct rates of MGMT promoter methylation. We conclude that, in a routine diagnostic setting, TERT promoter mutations define a relatively homogeneous core group among IDH-wildtype diffuse gliomas that includes the majority of primary glioblastomas as well as their putative precursor lesions.
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Affiliation(s)
- Ekkehard Hewer
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland.
| | - Nadine Prebil
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland
| | - Sabina Berezowska
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland
| | - Marielena Gutt-Will
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010, Bern, Switzerland
| | - Philippe Schucht
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010, Bern, Switzerland
| | - Matthias S Dettmer
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland
| | - Erik Vassella
- Institute of Pathology, University of Bern, Murtenstrasse 31, 3010, Bern, Switzerland
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Brügger F, Dettmer MS, Neuenschwander M, Perren A, Marinoni I, Hewer E. TERT Promoter Mutations but not the Alternative Lengthening of Telomeres Phenotype Are Present in a Subset of Ependymomas and Are Associated With Adult Onset and Progression to Ependymosarcoma. J Neuropathol Exp Neurol 2017; 76:61-66. [PMID: 28040793 DOI: 10.1093/jnen/nlw106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Genetic signatures related to telomere maintenance have emerged as powerful classifiers among CNS tumors. These include the alternative lengthening of telomeres (ALT) phenotype associated with mutations in the ATRX and DAXX genes and recurrent point mutations in the TERT gene promoter. We investigated a patient cohort covering the entire spectrum of childhood and adult ependymomas (n = 128), including subependymomas and myxopapillary ependymomas, for the presence of TERT promoter mutations, for loss of ATRX or DAXX expression by immunohistochemistry (as surrogates as underlying gene mutations), and for the ALT phenotype by fluorescence in situ hybridization (FISH). TERT promoter mutations were identified in 9/120 (7%) of tumors, all of which were conventional ependymomas occurring in adults. TERT promoter mutations were associated with older age and intracranial localization. Remarkably, 2 of these tumors progressed to ependymosarcoma upon recurrence. No tumors displayed an ALT phenotype by FISH or were ATRX or DAXX deficient by immunohistochemistry. In sum, TERT promoter mutations are present in a subset of mostly intracranial conventional ependymomas in adults and may be relevant for the uncommon progression to ependymosarcoma. Loss of ATRX immunoreactivity is a useful marker to rule out ependymoma in specific diagnostic settings.
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Affiliation(s)
| | | | | | - Aurel Perren
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Ilaria Marinoni
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Ekkehard Hewer
- Institute of Pathology, University of Bern, Bern, Switzerland
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Vassella E, Langsch S, Dettmer MS, Schlup C, Neuenschwander M, Frattini M, Gugger M, Schäfer SC. Molecular profiling of lung adenosquamous carcinoma: hybrid or genuine type? Oncotarget 2016; 6:23905-16. [PMID: 26068980 PMCID: PMC4695160 DOI: 10.18632/oncotarget.4163] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/15/2015] [Indexed: 12/20/2022] Open
Abstract
Lung adenosquamous carcinoma is a particular subtype of non-small cell lung carcinoma that is defined by the coexistence of adenocarcinoma and squamous cell carcinoma components. The aim of this study was to assess the mutational profile in each component of 16 adenosquamous carcinoma samples from a Caucasian population by a combination of next generation sequencing using the cancer hotspot panel as well as the colon and lung cancer panel and FISH. Identified mutations were confirmed by Sanger sequencing of DNA from cancer cells of each component collected by Laser Capture microdissection. Mutations typical for adenocarcinoma as well as squamous cell carcinoma were identified. Driver mutations were predominantly in the trunk suggesting a monoclonal origin of adenosquamous carcinoma. Most remarkably, EGFR mutations and mutations in the PI3K signaling pathway, which accounted for 30% and 25% of tumors respectively, were more prevalent while KRAS mutations were less prevalent than expected for a Caucasian population. Surprisingly, expression of classifier miR-205 was intermediate between that of classical adenocarcinoma and squamous cell carcinoma suggesting that adenosquamous carcinoma is a transitional stage between these tumor types. The high prevalence of therapy-relevant targets opens new options of therapeutic intervention for adenosquamous carcinoma patients.
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Affiliation(s)
- Erik Vassella
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | | | - Cornelia Schlup
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | | | - Mathias Gugger
- Institute of Pathology, University of Bern, Bern, Switzerland.,Promed SA Laboratoire Medical, Fribourg, Switzerland
| | - Stephan C Schäfer
- Institute of Pathology, University of Bern, Bern, Switzerland.,Institute of Pathology, University Hospital of Cologne, Cologne, Germany
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Hewer E, Dettmer MS, Vajtai I. Reply: Does morphological assessment have a role in classifying oligoastrocytoma as 'oligodendroglial' versus 'astrocytic'? Or - who's afraid of the … liger? Histopathology 2015; 68:1115-7. [PMID: 26598389 DOI: 10.1111/his.12905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Ekkehard Hewer
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | - Istvan Vajtai
- Institute of Pathology, University of Bern, Bern, Switzerland
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Hewer E, Vajtai I, Dettmer MS, Berezowska S, Vassella E. Combined ATRX/IDH1 immunohistochemistry predicts genotype of oligoastrocytomas. Histopathology 2015; 68:272-8. [PMID: 26016385 DOI: 10.1111/his.12743] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/24/2015] [Indexed: 11/29/2022]
Abstract
AIMS To assess whether in oligoastrocytomas ATRX deficiency, as a surrogate of the alternative lengthening of telomeres (ALT) pathway, has a role in predicting the presence or absence of loss of heterozygosity (LOH) of 1p and 19q, the genetic signature of oligodendroglial differentiation and a favourable prognostic marker. METHODS AND RESULTS A series of 54 oligoastrocytomas were investigated by immunohistochemistry as well as microsatellite analysis for LOH 1p19q. Genetic findings were correlated with morphological assessment. CONCLUSIONS ATRX deficiency was mutually exclusive with LOH. Conversely, ATRX-proficient tumours immunoreactive for R132H-mutant isocitrate dehydrogenase 1 (IDH1) showed a high rate (85%) of LOH. A more oligodendroglioma-like morphology was associated with a higher rate of LOH even in the morphologically ambiguous group of oligoastrocytomas. Our findings support the concept that oligoastrocytomas represent a morphological grey zone, rather than a group of truly 'mixed' or 'intermediate' tumours. More precise classification of diffuse gliomas may also improve grading of borderline cases. We propose an immunohistochemical algorithm for classification of morphologically ambiguous diffuse gliomas.
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Affiliation(s)
- Ekkehard Hewer
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Istvan Vajtai
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | | | - Erik Vassella
- Institute of Pathology, University of Bern, Bern, Switzerland
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Dettmer MS, Schmitt A, Steinert H, Capper D, Moch H, Komminoth P, Perren A. Tall cell papillary thyroid carcinoma: new diagnostic criteria and mutations in BRAF and TERT. Endocr Relat Cancer 2015; 22:419-29. [PMID: 25870252 DOI: 10.1530/erc-15-0057] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/10/2015] [Indexed: 02/05/2023]
Abstract
The tall cell (TC) variant of papillary thyroid carcinoma (PTC) has an unfavorable prognosis. The diagnostic criteria remain inconsistent, and the role of a minor TC component is unclear. Molecular diagnostic markers are not available; however, there are two potential candidates: BRAF V600E and telomerase reverse transcriptase (TERT) promoter mutations. Using a novel approach, we enriched a collective with PTCs that harbored an adverse outcome, which overcame the limited statistical power of most studies. This enabled us to review 125 PTC patients, 57 of which had an adverse outcome. The proportion of TCs that constituted a poor prognosis was assessed. All of the tumors underwent sequencing for TERT promoter and BRAF V600E mutational status and were stained with an antibody to detect the BRAF V600E mutation. A 10% cutoff for TCs was significantly associated with advanced tumor stage and lymph node metastasis. Multivariate analysis showed that TCs above 10% were the only significant factor for overall, tumor-specific, and relapse-free survival. Seven percent of the cases had a TERT promoter mutation, whereas 61% demonstrated a BRAF mutation. The presence of TC was significantly associated with TERT promoter and BRAF mutations. TERT predicted highly significant tumor relapse (P<0.001). PTCs comprised of at least 10% TCs are associated with an adverse clinical outcome and should be reported accordingly. BRAF did not influence patient outcome. Nevertheless, a positive status should encourage the search for TCs. TERT promoter mutations are a strong predictor of tumor relapse, but their role as a surrogate marker for TCs is limited.
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Affiliation(s)
- Matthias S Dettmer
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - Anja Schmitt
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - Hans Steinert
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - David Capper
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - Holger Moch
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - Paul Komminoth
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
| | - Aurel Perren
- Institute of PathologyUniversity of Bern, Murtenstrasse 31, 3010 Bern, SwitzerlandDivision of Nuclear MedicineUniversity Hospital Zurich, Zurich, SwitzerlandDepartment of NeuropathologyInstitute of Pathology, German Cancer Research Center (DKFZ), Ruprecht-Karls University, and Clinical Cooperation Unit Neuropathology, Heidelberg, GermanyInstitute of Surgical PathologyUniversity Hospital Zurich, Zurich, SwitzerlandInstitute of Surgical PathologyTriemlispital, Zürich, Switzerland
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Dettmer MS, Perren A, Moch H, Komminoth P, Nikiforov YE, Nikiforova MN. MicroRNA profile of poorly differentiated thyroid carcinomas: new diagnostic and prognostic insights. J Mol Endocrinol 2014; 52:181-9. [PMID: 24443580 PMCID: PMC4010646 DOI: 10.1530/jme-13-0266] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The diagnosis of conventional and oncocytic poorly differentiated (oPD) thyroid carcinomas is difficult. The aim of this study is to characterise their largely unknown miRNA expression profile and to compare it with well-differentiated thyroid tumours, as well as to identify miRNAs which could potentially serve as diagnostic and prognostic markers. A total of 14 poorly differentiated (PD), 13 oPD, 72 well-differentiated thyroid carcinomas and eight normal thyroid specimens were studied for the expression of 768 miRNAs using PCR-Microarrays. MiRNA expression was different between PD and oPD thyroid carcinomas, demonstrating individual clusters on the clustering analysis. Both tumour types showed upregulation of miR-125a-5p, -15a-3p, -182, -183-3p, -222, -222-5p, and downregulation of miR-130b, -139-5p, -150, -193a-5p, -219-5p, -23b, -451, -455-3p and of miR-886-3p as compared with normal thyroid tissue. In addition, the oPD thyroid carcinomas demonstrated upregulation of miR-221 and miR-885-5p. The difference in expression was also observed between miRNA expression in PD and well-differentiated tumours. The CHAID algorithm allowed the separation of PD from well-differentiated thyroid carcinomas with 73-79% accuracy using miR-23b and miR-150 as a separator. Kaplan-Meier and multivariate analysis showed a significant association with tumour relapses (for miR-23b) and with tumour-specific death (for miR-150) in PD and oPD thyroid carcinomas. MiRNA expression is different in conventional and oPD thyroid carcinomas in comparison with well-differentiated thyroid cancers and can be used for discrimination between these tumour types. The newly identified deregulated miRNAs (miR-150, miR-23b) bear the potential to be used in a clinical setting, delivering prognostic and diagnostic informations.
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Affiliation(s)
- Matthias S. Dettmer
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
- Institute of Pathology, University of Bern, 3010 Bern, Switzerland
- Corresponding author (reprint request): Dr. Matthias S. Dettmer, University of Bern, Institute of Pathology, Murtenstrasse 31, CH – 3010 Bern, Tel.: +41 31 632 8798, Fax: +41 31 632 3211, ,
| | - Aurel Perren
- Institute of Pathology, University of Bern, 3010 Bern, Switzerland
| | - Holger Moch
- Institute of Surgical Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Paul Komminoth
- Institute of Surgical Pathology, Triemlispital Zurich, 8063 Zurich, Switzerland
| | - Yuri E. Nikiforov
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Marina N. Nikiforova
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
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Abstract
AIMS Pulmonary bone marrow embolism (BME) and pulmonary bone fragment embolism (BFE) are two types of non-thrombotic pulmonary embolism (NTPE). While BME can be found consistently in autopsies, BFE is a rarely observed event. Both these conditions have bone lesions as source of embolism and are not considered to be causative for death. METHODS A retrospective autopsy study was performed and lung whole tissue slides were reviewed for the presence of pulmonary embolism. Clinicopathological data were screened for osseous lesions considered as risk factors for BME and BFE. RESULTS We reviewed 985 consecutive, unselected autopsies and identified 29 cases of BME (2.9%) and 5 cases of BFE (0.5%). Both conditions were mutually exclusive. While BME showed a significant association with costal fractures, BFE was significantly associated with osteomyelitis and previously performed femur nailing. There were between 1 and 346 bone emboli in BFE with a density ranging from 0.74 to 30.5 emboli/cm(2) with mean embolic diameter of 45.8±37.6 μm. In two patients, BFE contributed significantly to fatal outcome. CONCLUSIONS BME was associated with costal fractures, while BFE was associated with orthopaedic procedures and osteomyelitis. BFE can result in patient death. Both conditions appeared exclusively, indicating that although they originate from osseous lesions their underlying pathogenesis may likely be different.
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Affiliation(s)
- Matthias S Dettmer
- Institute of Pathology Liestal, Cantonal Hospital Baselland, , Liestal, Switzerland
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