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van Beek N, Eming R, Reuss A, Zillikens D, Sárdy M, Günther C, Kiritsi D, Benoit S, Beissert S, Gläser R, Gollnick H, Horváth ON, Pfeiffer C, Röcken M, Schauer F, Schreml S, Steinbrink K, Zink A, Schade-Brittinger C, Hertl M, Schmidt E. Efficacy and safety of adjuvant immunoadsorption in pemphigus vulgaris and pemphigus foliaceus (IA-Pem Study): a multicentre randomized controlled trial. Br J Dermatol 2024; 190:657-667. [PMID: 38133541 DOI: 10.1093/bjd/ljad489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Pemphigus vulgaris (PV) and pemphigus foliaceus (PF) are potentially life-threatening autoimmune blistering diseases. Treatment is based on long-term immunosuppression with high doses of glucocorticosteroids in combination with potentially corticosteroid-sparing agents and/or rituximab. Immunoadsorption (IA) has emerged as a fast-acting adjuvant treatment option. OBJECTIVES To assess the clinical efficacy of IA in addition to best medical treatment (BMT). METHODS We conducted a multicentre (26 centres from Germany and Austria) randomized controlled trial in 72 patients with newly diagnosed, relapsed or chronic active PV or PF (34 female patients and 38 male patients, aged 42-72 years) comparing BMT (prednisolone 1.0 mg kg-1 per day plus azathioprine or mycophenolate) with adjuvant IA (BMT + IA). Central 1 : 1 randomization was done at the coordinating centre for clinical trials (KKS Marburg). The primary endpoint was analysed using Kaplan-Meier and Cox regression methods. RESULTS The study was ended prematurely owing to safety concerns after random allocation of 72 patients to BMT + IA (n = 34) or BMT (n = 38). The primary endpoint, time to complete remission on therapy, was not significantly different for the two groups [hazard ratio (HR) 1.35, 95% confidence interval (CI) 0.68-2.69; P = 0.39]. The cumulative dose of prednisolone was significantly lower in the BMT + IA group compared with BMT alone (difference -1214, 95% CI -2225 to -70; P = 0.03). In a post hoc analysis, patients with more extensive PV/PF showed a tendency towards a shorter time to remission in the BMT + IA group compared with the BMT group (HR 1.87, P = 0.17 in patients with baseline Pemphigus Disease Area Index ≥ 15). While more adverse events were observed in patients in the BMT group (29 vs. 25), severe adverse events were more frequent in patients in the BMT + IA group (17 events in 10 patients vs. 11 events in 8 patients). CONCLUSIONS In this study, adjuvant IA did not demonstrate a shorter time to clinical remission, but a corticosteroid-sparing effect was observed. In patients with extensive PV/PF, post hoc analysis suggests that adjuvant IA may lead to earlier remission, but potential adverse events must be carefully weighed against the expected benefits.
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Affiliation(s)
- Nina van Beek
- Department of Dermatology, Allergology and Venereology
| | | | - Alexander Reuss
- Coordinating Center for Clinical Trials, Phillips University, Marburg, Germany
| | | | - Miklós Sárdy
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Claudia Günther
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Dimitra Kiritsi
- Department of Dermatology and Venereology, University Hospital Freiburg, Freiburg, Germany
| | - Sandrine Benoit
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Beissert
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Regine Gläser
- Department of Dermatology, Venereology and Allergology, Christian-Albrechts University, Kiel, Germany
| | - Harald Gollnick
- Department of Dermatology and Venereology, Otto-von-Guericke University, Magdeburg, Germany
| | - Orsolya N Horváth
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Christiane Pfeiffer
- Department of Dermatology and Allergology, University Hospital Ulm, Ulm, Germany
| | - Martin Röcken
- Department of Dermatology, Eberhard Karls University, Tübingen, Germany
| | - Franziska Schauer
- Department of Dermatology and Venereology, University Hospital Freiburg, Freiburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Centre Regensburg, Regensburg, Germany
| | - Kerstin Steinbrink
- Department of Dermatology, Johannes-Gutenberg University Mainz, Mainz, Germany
| | - Alexander Zink
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | | | | | - Enno Schmidt
- Department of Dermatology, Allergology and Venereology
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
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Schiltz D, Diesch ST, Kiermeier N, Eibl D, Felmerer G, Schreml S, Biermann N, Prantl L, Taeger CD. Digital Volumetric Measurements Based on 3D Scans of the Lower Limb: A Valid and Reproducible Method for Evaluation in Lymphedema Therapy. Ann Vasc Surg 2024; 105:209-217. [PMID: 38579911 DOI: 10.1016/j.avsg.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUND Exact quantification of volumetric changes of the extremities is difficult and often error-prone. The aim of this study was to establish a standardized method based on 3-dimensional (3D) scans. Furthermore, this study tests the method in terms of reproducibility and evaluates volume changes after surgical therapy in patients suffering from lymphedema on the lower extremity. METHODS 3D scans of the lower limb were performed with a mobile 3D scanner; "repeatability" and "interobserver reliability" of digital volumetry were tested. Furthermore, the method was applied on 31 patients suffering from chronic lymphedema. RESULTS Calculations of repeatability of the volume based on 20 3D scans of the same lower leg showed a mean volume of 2.488 ± 0.011 liters (range: 2.470-2.510). The mean volume of the different examiners did not differ significantly (F(2,18) = 1.579, P = 0.233). The paired t-test showed a significant mean volume decrease of 375 mL (95% confidence interval = 245/505 mL) between pretreatment and post-treatment (t (30) = 5.892, P < 0.001). CONCLUSIONS 3D volumetry is a noninvasive, easy, and quick method to assess volume changes of the lower leg. Other than the low costs, it is reproducible and precise and therefore ideal for evolution of therapy in lymphedema.
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Affiliation(s)
- Daniel Schiltz
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany; Department of Plastic and Aesthetic Surgery, Hand Surgery, Helios Hospital Emil von Behring, Berlin, Berlin, Germany.
| | - Sophia Theresa Diesch
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Natalie Kiermeier
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Dominik Eibl
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Gunther Felmerer
- Division of Plastic Surgery, Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Goettingen, Niedersachsen, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Niklas Biermann
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Lukas Prantl
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Christian D Taeger
- Department of Plastic, Hand- and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bavaria, Germany
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Nusbaum KB, Boettler M, Korman AM, Alavi A, Alloo A, Dissemond J, French LE, Huang WW, Kolios AGA, Marzano AV, Micheletti RG, Mostaghimi A, Ortega-Loayza AG, Rosenbach M, Schreml S, Tolkachjov SN, Kaffenberger BH. Subjective assessments in pyoderma gangrenosum diagnostic frameworks undermine framework agreement. Int J Dermatol 2024; 63:e67-e69. [PMID: 38044552 DOI: 10.1111/ijd.16952] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 11/21/2023] [Indexed: 12/05/2023]
Affiliation(s)
- Kelsey B Nusbaum
- Department of Dermatology, The Ohio State University, Columbus, OH, USA
| | - Michelle Boettler
- Department of Dermatology, The Ohio State University, Columbus, OH, USA
| | - Abraham M Korman
- Department of Dermatology, The Ohio State University, Columbus, OH, USA
| | - Afsaneh Alavi
- Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Allireza Alloo
- Department of Dermatology, Donald and Barbara Zucker School of Medicine at Hofstra Northwell, New Hyde Park, NY, USA
| | - Joachim Dissemond
- Department of Dermatology, University of Essen-Duisburg, Essen, Germany
| | - Lars E French
- Department of Dermatology, University Hospital, Munich University of Ludwig Maximilian, Munich, Germany
- Dr. Philip Frost, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - William W Huang
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Antonio G A Kolios
- Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - Angelo V Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Robert G Micheletti
- Department of Dermatology and Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Arash Mostaghimi
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Alex G Ortega-Loayza
- Department of Dermatology, Oregon Health and Science University, Portland, OR, USA
| | - Misha Rosenbach
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Stanislav N Tolkachjov
- Epiphany Dermatology, Dallas, TX, USA
- Texas A&M College of Medicine, Dallas, TX, USA
- University of Texas at Southwestern, Dallas, TX, USA
- Baylor University Medical Center, Dallas, TX, USA
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Schiltz D, Sokolow AJ, Minck N, Schreml S, Moser L, von Fritschen U. The phyllodes menace-Variation in course, therapy, and appearance of phyllodes tumors in a case series of three patients. Clin Case Rep 2023; 11:e7836. [PMID: 37663819 PMCID: PMC10474313 DOI: 10.1002/ccr3.7836] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 06/13/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
Key Clinical Message Early and complete surgical resection is the most important therapeutic and diagnostic measure. Adjuvant radiation is suggested for malign phyllode tumors, phyllode tumors larger than 10 cm or those with a low distance to the resection margins. Abstract Phyllodes tumors are rare fibroepithelial tumors of the breast. Histologically, they are usually classified as benign, borderline or malignant, though these classifications do not necessarily reflect the clinical course of the disease. These tumors may stay undetected for years, or show sudden and rapid progression. There is currently no consistent therapy recommendation based upon histological findings, the localization of the tumor and/or whether it is recurrent. Using the examples of three patients, we show how courses and therapy may differ widely, and discuss this in the context of the current state of the literature.
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Affiliation(s)
- Daniel Schiltz
- Department of Plastic and Aesthetic Surgery, Hand SurgeryHelios Hospital Emil von BehringBerlinGermany
| | - Alexander Jan Sokolow
- Department of Plastic and Aesthetic Surgery, Hand SurgeryHelios Hospital Emil von BehringBerlinGermany
| | - Natalya Minck
- Department of PathologyHelios Hospital Emil von BehringBerlinGermany
| | - Stephan Schreml
- Department of DermatologyUniversity Hospital RegensburgGermany
| | - Lutz Moser
- Department of RadiotherapyHelios Hospital Emil von BehringBerlinGermany
| | - Uwe von Fritschen
- Department of Plastic and Aesthetic Surgery, Hand SurgeryHelios Hospital Emil von BehringBerlinGermany
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Fiedler M, Off A, Eichberger J, Spoerl S, Schuderer JG, Taxis J, Bauer RJ, Schreml S, Reichert TE, Ettl T, Weber F. OSCC in Never-Smokers and Never-Drinkers Is Associated with Increased Expression of Tumor-Infiltrating Lymphocytes and Better Survival. Cancers (Basel) 2023; 15:2688. [PMID: 37345025 DOI: 10.3390/cancers15102688] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 06/23/2023] Open
Abstract
The aim of this study was to investigate the clinical, histopathologic, and immunologic differences of oral squamous cell carcinoma of never-smokers/never-drinkers and smokers/drinkers. Immunohistochemical staining for CD4, CD8, FoxP3, CD1a, and p16 was performed in 131 oral squamous cell carcinomas from smokers/drinkers and never-smokers/never-drinkers. Associations of smoking/drinking status with clinicopathologic data, immunohistochemical antibody expression, and survival were examined. Oral squamous cell carcinoma in never-smokers/never-drinkers was associated with the female gender (p < 0.001). Never-smokers/never-drinkers were older at diagnosis than smokers/drinkers (p < 0.001). Never-smokers/never-drinkers had more tumors in the maxilla, mandible, and tongue (p < 0.001). Pre-existing oral potentially malignant disorders appeared to be more common in never-smokers/never-drinkers (p < 0.001). Perineural invasion was more common in smokers/drinkers (p = 0.039). Never-smoking/never-drinking was associated with better overall survival (p = 0.004) and disease-specific survival (p = 0.029). High CD4+ T cell infiltration was associated with never-smoking/never-drinking (p = 0.008). Never-smokers/never-drinkers also showed increased CD8+ T cell infiltration (p = 0.001) and increased FoxP3+ Treg infiltration (p = 0.023). Furthermore, the total group of tumor-infiltrating lymphocytes was associated with never smoking/never drinking (p = 0.005). To conclude oral squamous cell carcinoma of the never-smokers/never-drinkers appears to be a distinct type of tumor, as it appears to have unique clinical and pathologic features and a more immunogenic microenvironment.
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Affiliation(s)
- Mathias Fiedler
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Alisa Off
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
- Insitute of Pathology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Jonas Eichberger
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Steffen Spoerl
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Johannes G Schuderer
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Juergen Taxis
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Richard J Bauer
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
- Department of Cranio- and Maxillofacial Surgery, Center for Medical Biotechnology, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Torsten E Reichert
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Tobias Ettl
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Florian Weber
- Insitute of Pathology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
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Ramakrishnan V, Schönmehl R, Artinger A, Winter L, Böck H, Schreml S, Gürtler F, Daza J, Schmitt VH, Mamilos A, Arbelaez P, Teufel A, Niedermair T, Topolcan O, Karlíková M, Sossalla S, Wiedenroth CB, Rupp M, Brochhausen C. 3D Visualization, Skeletonization and Branching Analysis of Blood Vessels in Angiogenesis. Int J Mol Sci 2023; 24:ijms24097714. [PMID: 37175421 PMCID: PMC10178731 DOI: 10.3390/ijms24097714] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Angiogenesis is the process of new blood vessels growing from existing vasculature. Visualizing them as a three-dimensional (3D) model is a challenging, yet relevant, task as it would be of great help to researchers, pathologists, and medical doctors. A branching analysis on the 3D model would further facilitate research and diagnostic purposes. In this paper, a pipeline of vision algorithms is elaborated to visualize and analyze blood vessels in 3D from formalin-fixed paraffin-embedded (FFPE) granulation tissue sections with two different staining methods. First, a U-net neural network is used to segment blood vessels from the tissues. Second, image registration is used to align the consecutive images. Coarse registration using an image-intensity optimization technique, followed by finetuning using a neural network based on Spatial Transformers, results in an excellent alignment of images. Lastly, the corresponding segmented masks depicting the blood vessels are aligned and interpolated using the results of the image registration, resulting in a visualized 3D model. Additionally, a skeletonization algorithm is used to analyze the branching characteristics of the 3D vascular model. In summary, computer vision and deep learning is used to reconstruct, visualize and analyze a 3D vascular model from a set of parallel tissue samples. Our technique opens innovative perspectives in the pathophysiological understanding of vascular morphogenesis under different pathophysiological conditions and its potential diagnostic role.
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Affiliation(s)
- Vignesh Ramakrishnan
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
- Central Biobank Regensburg, University and University Hospital Regensburg, 93053 Regensburg, Germany
| | - Rebecca Schönmehl
- Institute of Pathology, University Medical Centre Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Annalena Artinger
- Institute of Pathology, University Medical Centre Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Lina Winter
- Institute of Pathology, University Medical Centre Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Hendrik Böck
- Institute of Pathology, University Medical Centre Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Centre Regensburg, 93053 Regensburg, Germany
| | - Florian Gürtler
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
- Central Biobank Regensburg, University and University Hospital Regensburg, 93053 Regensburg, Germany
| | - Jimmy Daza
- Department of Internal Medicine II, Division of Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Volker H Schmitt
- Department of Cardiology, University Medical Centre, Johannes Gutenberg University of Mainz, 55131 Mainz, Germany
| | - Andreas Mamilos
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
- Central Biobank Regensburg, University and University Hospital Regensburg, 93053 Regensburg, Germany
| | - Pablo Arbelaez
- Center for Research and Formation in Artificial Intelligence (CinfonIA), Universidad de Los Andes, 111711 Bogota, Colombia
| | - Andreas Teufel
- Department of Internal Medicine II, Division of Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Tanja Niedermair
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
- Central Biobank Regensburg, University and University Hospital Regensburg, 93053 Regensburg, Germany
| | - Ondrej Topolcan
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 32300 Pilsen, Czech Republic
| | - Marie Karlíková
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 32300 Pilsen, Czech Republic
| | - Samuel Sossalla
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | | | - Markus Rupp
- Department of Trauma Surgery, University Medical Centre Regensburg, 93053 Regensburg, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
- Institute of Pathology, University Medical Centre Mannheim, Heidelberg University, 68167 Mannheim, Germany
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Kurz B, Koschitzki KT, Hehr U, Germer U, Schreml J, Langhammer F, Schreml S. Congenital ichthyosiform erythroderma (CIE) with epidermolysis due to a novel frameshift mutation in KRT10. JAAD Case Rep 2023; 35:74-76. [PMID: 37101807 PMCID: PMC10123060 DOI: 10.1016/j.jdcr.2023.02.028] [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: 03/19/2023] Open
Affiliation(s)
- Bernadett Kurz
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
| | | | - Ute Hehr
- Institute of Human Genetics, University Hospital Regensburg, Regensburg, Germany
| | - Ute Germer
- Department of Gynecology and Obstetrics, Caritas Hospital St. Josef, Regensburg, Germany
| | - Julia Schreml
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany
| | - Florian Langhammer
- Department of Neonatology, University Children’s Hospital Regensburg (KUNO), Hospital St. Hedwig of the Order of St. John, University Hospital Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
- Correspondence to: Stephan Schreml, MD, Department of Dermatology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
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8
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von Breitenbuch P, Kurz B, Wallner S, Zeman F, Brochhausen C, Schlitt HJ, Schreml S. Expression of pH-Sensitive GPCRs in Peritoneal Carcinomatosis of Colorectal Cancer-First Results. J Clin Med 2023; 12:jcm12051803. [PMID: 36902589 PMCID: PMC10003041 DOI: 10.3390/jcm12051803] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/06/2023] [Accepted: 02/20/2023] [Indexed: 03/05/2023] Open
Abstract
Solid tumors have an altered metabolism with a so-called inside-out pH gradient (decreased pHe < increased pHi). This also signals back to tumor cells via proton-sensitive ion channels or G protein-coupled receptors (pH-GPCRs) to alter migration and proliferation. Nothing, however, is known about the expression of pH-GPCRs in the rare form of peritoneal carcinomatosis. Paraffin-embedded tissue samples of a series of 10 patients with peritoneal carcinomatosis of colorectal (including appendix) origin were used for immunohistochemistry to study the expression of GPR4, GPR65, GPR68, GPR132, and GPR151. GPR4 was just expressed weakly in 30% of samples and expression was significantly reduced as compared to GPR56, GPR132, and GPR151. Furthermore, GPR68 was only expressed in 60% of tumors and showed significantly reduced expression as compared to GPR65 and GPR151. This is the first study on pH-GPCRs in peritoneal carcinomatosis, which shows lower expression of GPR4 and GPR68 as compared to other pH-GPCRs in this type of cancer. It may give rise to future therapies targeting either the TME or these GPCRs directly.
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Affiliation(s)
| | - Bernadett Kurz
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Hans-Jürgen Schlitt
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
- Correspondence:
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Kurz B, Michael HP, Förch A, Wallner S, Zeman F, Decking SM, Ugele I, Hintschich C, Haubner F, Ettl T, Renner K, Brochhausen C, Schreml S. Expression of pH-Sensitive TRPC4 in Common Skin Tumors. Int J Mol Sci 2023; 24:ijms24021037. [PMID: 36674553 PMCID: PMC9862651 DOI: 10.3390/ijms24021037] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023] Open
Abstract
TRPCs (transient receptor potential classical or cation channels) play a crucial role in tumor biology, especially in the Ca2+ homeostasis in cancer cells. TRPC4 is a pH-sensitive member of this family of proteins. As solid tumors exhibit an inversed pH-gradient with lowered extracellular and increased intracellular pH, both contributing to tumor progression, TRPC4 might be a signaling molecule in the altered tumor microenvironment. This is the first study to investigate the expression profiles of TRPC4 in common skin cancers such as basal cell carcinoma (BCC), squamous cell carcinoma (SCC), malignant melanoma (MM) and nevus cell nevi (NCN). We found that all SCCs, NCNs, and MMs show positive TRPC4-expression, while BCCs do only in about half of the analyzed samples. These data render TRPC4 an immunohistochemical marker to distinguish SCC and BCC, and this also gives rise to future studies investigating the role of TRPC4 in tumor progression, and especially metastasis as BCCs very rarely spread and are mostly negative for TRPC4.
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Affiliation(s)
- Bernadett Kurz
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Hannah Philine Michael
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Antonia Förch
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Sonja-Maria Decking
- Department of Otorhinolaryngology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Ines Ugele
- Department of Otorhinolaryngology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Constantin Hintschich
- Department of Otorhinolaryngology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Hospital, Ludwig Maximilians University Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Tobias Ettl
- Department of Maxillofacial Surgery, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Kathrin Renner
- Department of Otorhinolaryngology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
- Correspondence:
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Stolwijk JA, Wallner S, Heider J, Kurz B, Pütz L, Michaelis S, Goricnik B, Erl J, Frank L, Berneburg M, Haubner F, Wegener J, Schreml S. GPR4 in the pH-dependent migration of melanoma cells in the tumor microenvironment. Exp Dermatol 2022; 32:479-490. [PMID: 36562556 DOI: 10.1111/exd.14735] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 05/25/2022] [Revised: 11/17/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
Due to its high metastatic potential, malignant melanoma is one of the deadliest skin cancers. In melanoma as well as in other cancers, acidification of the tumor microenvironment (=TME, inverse pH-gradient) is a well-known driver of tumor progression and metastasis. Membrane-bound receptors, such as the proton-sensitive GPCR (pH-GPCR) GPR4, are considered as potential initiators of the signalling cascades relevant to malignant transformation. In this study, we investigated the pH-dependent migration of GPR4 wildtype/overexpressing SK-Mel-28 cells using an impedance-based electrical wounding and migration assay and classical Boyden chamber experiments. Migration of GPR4 overexpressing SK-Mel-28 cells was enhanced in a range of pH 6.5-7.5 as compared to controls in the impedance-based electrical wounding and migration assay. In Boyden chamber experiments, GPR4 overexpression only increased migration at pH 7.5 in a Matrigel-free setup, but not at pH 6.5. Results indicate that GPR4 is involved in the migration of melanoma cells, especially in the tumor periphery, and that this process is affected by pH in the TME.
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Affiliation(s)
- Judith Anthea Stolwijk
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany.,Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Judith Heider
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Bernadett Kurz
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Lisa Pütz
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Stefanie Michaelis
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany.,Fraunhofer Research Institution for Microsystems and Solid State Technologies EMFT, Regensburg, Germany
| | - Barbara Goricnik
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Julia Erl
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Linda Frank
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, Ludwig Maximilians University Munich, Munich, Germany
| | - Joachim Wegener
- Faculty of Chemistry and Pharmacy, Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany.,Fraunhofer Research Institution for Microsystems and Solid State Technologies EMFT, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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11
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Eichberger J, Weber F, Spanier G, Gerken M, Schreml S, Schulz D, Fiedler M, Ludwig N, Bauer RJ, Reichert TE, Ettl T. Loss of MMP-27 Predicts Mandibular Bone Invasion in Oral Squamous Cell Carcinoma. Cancers (Basel) 2022; 14:cancers14164044. [PMID: 36011038 PMCID: PMC9406335 DOI: 10.3390/cancers14164044] [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: 07/21/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 12/24/2022] Open
Abstract
Simple Summary The growth of oral squamous cell carcinoma into the mandible poses significant challenges to head and neck surgery. The resulting need for extensive procedures has a decisive influence on subsequent esthetics and function and therefore also on the patient’s quality of life. The molecular mechanism behind this remains obscure to date. Hence, we investigated the influence of MMP-27, Osteoprotegerin and RANKL, three proteins with importance in bone remodeling. The results showed that tumors exhibited less bone-invasive behavior in the presence of MMP-27. This may be an incentive for further studies to elucidate the molecular mechanisms of mandibular bone invasion in OSCC. Abstract Invasion of the mandibular bone is frequent in oral squamous cell carcinoma (OSCC), which often results in extensive ablative and reconstructive procedures for the patient. The purpose of this single-center, retrospective study was to identify and evaluate potential biomarkers and risk factors for bone invasion in OSCC. Initially, in silico gene expression analysis was performed for different HNSCC tumor T-stages to find factors associated with invasive (T4a) tumor growth. Afterwards, the protein expression of bone-metabolizing MMP-27, TNFRSF11B (Osteoprotegerin, OPG), and TNFSF11 (RANKL) was investigated via Tissue Microarrays (TMAs) for their impact on mandibular bone invasion. TMAs were assembled from the bone–tumor interface of primary OSCCs of the floor of the mouth and gingiva from 119 patients. Sixty-four carcinomas with patho-histological jaw invasion (pT4a) were compared to 55 carcinomas growing along the mandible without invasion (pT2, pT3). Tissue samples were additionally evaluated for patterns of invasion using the WPOI grading system. Statistical analysis of in silico data revealed decreased MMP-27 mRNA expression to be strongly associated with the pT4a-stage in OSCC, indicating invasive tumor growth with infiltration of adjacent anatomical structures. Our own clinico-pathological data on OSCCs presented a significant decrease of MMP-27 in tumors invading the nearby mandible (pT4a), compared to pT2 and pT3 tumors without bone invasion. Loss of MMP27 evolved as the strongest predictor of mandibular bone invasion in binary logistic regression analysis. To our knowledge, this is the first study investigating the role of MMP-27 expression in OSCC and demonstrating the importance of the loss of MMP-27 in mandibular bone invasion.
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Affiliation(s)
- Jonas Eichberger
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Oral and Maxillofacial Surgery and Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Florian Weber
- Institute of Pathology, University of Regensburg, 93053 Regensburg, Germany
| | - Gerrit Spanier
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Michael Gerken
- Tumor Center Regensburg, Institute for Quality Assurance and Health Services Research, University of Regensburg, 93053 Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Daniela Schulz
- Department of Oral and Maxillofacial Surgery and Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Mathias Fiedler
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Oral and Maxillofacial Surgery and Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Nils Ludwig
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Oral and Maxillofacial Surgery and Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Richard Josef Bauer
- Department of Oral and Maxillofacial Surgery and Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Torsten Eugen Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
- Correspondence:
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12
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Richter L, Schreml S, Heidinger T. Ready for Vaccination? COVID-19 Vaccination Willingness of Older People in Austria. Front Public Health 2022; 10:859024. [PMID: 35719668 PMCID: PMC9204173 DOI: 10.3389/fpubh.2022.859024] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022] Open
Abstract
In spite of findings highlighting higher health risk from infection compared to younger people, a certain percentage of older people in Austria still lack a valid vaccination certificate. The current gaps in vaccination coverage in countries such as Austria are likely to be in large part due to vaccination refusal and pose or will pose problems for the health system and consequently for all of society should the initial findings on Omicron coronavirus infectivity prove true. Surprisingly, only a few studies around the globe explicitly address older people's COVID-19 vaccination willingness. The present work therefore intends to contribute to this field by identifying factors associated with the decision for or against a vaccination among the older population in Austria. Data collected between late 2020 and early 2021 via the cross-national panel study Survey of Health, Aging and Retirement in Europe (SHARE) are used to perform multinomial logistic regression to analyse differences between COVID-19 vaccination supporters, undecided persons and rejectors. The results show that persons exhibiting a low risk assessment toward COVID-19, less health protection behaviors, lower education and belonging to households with financial burdens are significantly more likely to refuse vaccination or be ambivalent. Although multimorbidity reduces risk of vaccination refusal, poor subjective health was significantly related to a higher risk of refusing vaccination. The results point to the importance of addressing the factors related to refusal. Only by understanding these factors will it be possible to increase vaccination rates and thus minimize other restrictive measures.
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Affiliation(s)
- Lukas Richter
- Department of Social Sciences, St. Pölten University of Applied Sciences, St. Pölten, Austria
| | - Stephan Schreml
- Department of Socioeconomics, Vienna University of Economics and Business, Vienna, Austria
| | - Theresa Heidinger
- Department of Gerontology and Health Research, Karl Landsteiner University of Health Sciences, Krems an der Donau, Austria
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13
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Steinhelfer L, Kühnel T, Jägle H, Mayer S, Karrer S, Haubner F, Schreml S. Systemic therapy of necrobiotic xanthogranuloma: a systematic review. Orphanet J Rare Dis 2022; 17:132. [PMID: 35331271 PMCID: PMC8944121 DOI: 10.1186/s13023-022-02291-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 12/26/2021] [Accepted: 03/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Even though a plethora of systemic therapies have been proposed for necrobiotic xanthogranuloma (NXG), there is no systematic review on this topic in literature. OBJECTIVE To review all existing literature on the systemic therapy of NXG in order to identify the most effective therapies. METHODS All reported papers in the literature were screened for systemic treatments of NXG. Papers without proper description of the therapies, papers describing topical therapy, and articles without assessment of effectiveness were excluded. Subsequently, we analyzed 79 papers and a total of 175 cases. RESULTS The most effective treatments for NXG are intravenous immunoglobulins (IVIG), corticosteroids, and combination therapies including corticosteroids. CONCLUSIONS Corticosteroids and IVIG should therefore be considered first-line treatments in patients with NXG.
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Affiliation(s)
- Lisa Steinhelfer
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.,Department of Nuclear Medicine, Technical University Munich, Ismaninger Strasse 22, 81675, Munich, Germany.,Department of Radiology, Technical University Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Thomas Kühnel
- Department of Otorhinolaryngology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Herbert Jägle
- Department of Ophthalmology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Stephanie Mayer
- Department of Internal Medicine III, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Sigrid Karrer
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, Ludwig Maximilians University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
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14
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Förch A, Wallner S, Zeman F, Ettl T, Brochhausen C, Schreml S. Expression of Proton-Sensitive GPR31, GPR151, TASK1 and TASK3 in Common Skin Tumors. Cells 2021; 11:cells11010027. [PMID: 35011589 PMCID: PMC8744809 DOI: 10.3390/cells11010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
TWIK-related acid-sensitive potassium channels TASK1 and TASK3, as well as the G-protein-coupled receptors GPR31 and GPR151, are proton-sensitive membrane proteins. They can be activated or inhibited by low extracellular pH (pHe), which is a hallmark of the tumor microenvironment in solid tumors. However, the role of these channels in the development of skin tumors is still unclear. In this study, we investigated the expression profiles of TASK1, TASK3, GPR31 and GPR151 in squamous cell carcinomas (SCCs), basal cell carcinomas (BCCs), nevus cell nevi (NCN), and malignant melanomas (MMs). We performed immunohistochemistry using paraffin-embedded tissue samples from patients and found that most skin tumors express TASK1/3 and GPR31/151. The results show that BCCs are often negative for GPR31/151 as well as for TASK1/3, while nearly all SCCs express these markers. MMs and NCN show similar expression patterns. However, some tumors show a decreasing TASK1/3 expression in deeper dermal tumor tissue, while GPCRs were expressed more evenly. The lower frequency of GPR31/151 and TSAK1/3 expression in BCCs when compared to SCCs is a novel histological feature distinguishing these two entities. Moreover, BCCs also show lower expression of GPR31/151 and TASK1/3 as compared to NCN and MMs.
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Affiliation(s)
- Antonia Förch
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany; (A.F.); (S.W.)
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany; (A.F.); (S.W.)
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany;
| | - Tobias Ettl
- Department of Maxillofacial Surgery, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany;
| | - Christoph Brochhausen
- Institute of Pathology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany;
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany; (A.F.); (S.W.)
- Correspondence:
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15
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Klatt W, Wallner S, Brochhausen C, Stolwijk JA, Schreml S. Expression profiles of proton-sensing G-protein coupled receptors in common skin tumors. Sci Rep 2020; 10:15327. [PMID: 32948783 PMCID: PMC7501253 DOI: 10.1038/s41598-020-71700-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 07/16/2020] [Accepted: 08/19/2020] [Indexed: 12/18/2022] Open
Abstract
The proton-sensing GPCRs (pH-GPCRs) GPR4 (GPR19), TDAG8 (GPR65, T-cell death associated gene 8), OGR1 (GPR68, ovarian cancer GPCR1), and G2A (GPR132, G2 accumulation protein) are involved in sensing and transducing changes in extracellular pH (pHe). Extracellular acidification is a central hallmark of solid cancer. pH-GPCR function has been associated with cancer cell proliferation, adhesion, migration and metastasis, as well as with modulation of the immune system. Little is known about the expression levels and role of pH-GPCRs in skin cancer. To better understand the functions of pH-GPCRs in skin cancer in vivo, we examined the expression-profiles of GPR4, TDAG8, OGR1 and G2A in four common skin tumors, i.e. squamous cell carcinoma (SCC), malignant melanoma (MM), compound nevus cell nevi (NCN), basal cell carcinoma (BCC). We performed immunohistochemistry and immunofluorescence staining on paraffin-embedded tissue samples acquired from patients suffering from SCC, MM, NCN or BCC. We show the expression of pH-GPCRs in four common skin cancers. Different expression patterns in the investigated skin cancer types indicate that the different pH-GPCRs may have distinct functions in tumor progression and serve as novel therapeutic targets.
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Affiliation(s)
- Wybke Klatt
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Judith A Stolwijk
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
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Wongkaew N, Simsek M, Heider J, Wegener J, Baeumner AJ, Schreml S, Stolwijk JA. Cytocompatibility of Mats Prepared from Different Electrospun Polymer Nanofibers. ACS Appl Bio Mater 2020; 3:4912-4921. [DOI: 10.1021/acsabm.0c00426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Nongnoot Wongkaew
- Institute for Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Marcel Simsek
- Institute for Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Judith Heider
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Joachim Wegener
- Institute for Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
- Fraunhofer Research Institution for Microsystems and Solid State Technologies, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Antje J. Baeumner
- Institute for Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Judith A. Stolwijk
- Institute for Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
- Department of Dermatology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
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17
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Stolwijk JA, Sauer L, Ackermann K, Nassios A, Aung T, Haerteis S, Bäumner AJ, Wegener J, Schreml S. pH sensing in skin tumors: Methods to study the involvement of GPCRs, acid-sensing ion channels and transient receptor potential vanilloid channels. Exp Dermatol 2020; 29:1055-1061. [PMID: 32658355 DOI: 10.1111/exd.14150] [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: 05/26/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022]
Abstract
Solid tumors exhibit an inversed pH gradient with increased intracellular pH (pHi ) and decreased extracellular pH (pHe ). This inside-out pH gradient is generated via sodium/hydrogen antiporter 1, vacuolar-type H + ATPases, monocarboxylate transporters, (bi)carbonate (co)transporters and carboanhydrases. Our knowledge on how pHe -signals are sensed and what the respective receptors induce inside cells is scarce. Some pH-sensitive receptors (GPR4, GPR65/TDAG8, GPR68/OGR1, GPR132/G2A, possibly GPR31 and GPR151) and ion channels (acid-sensing ion channels ASICs, transient receptor potential vanilloid receptors TRPVs) transduce signals inside cells. As little is known on the expression and function of these pH sensors, we used immunostainings to study tissue samples from common and rare skin cancers. Our current and future work is directed towards investigating the impact of all the pH-sensing receptors in different skin tumors using cell culture techniques with selective knockdown/knockout (siRNA/CRISPR-Cas9). To study cell migration and proliferation, novel impedance-based wound healing assays have been developed and are used. The field of pH sensing in tumors and wounds holds great promise for the development of pH-targeting therapies, either against pH regulators or sensors to inhibit cell proliferation and migration.
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Affiliation(s)
- Judith A Stolwijk
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany.,Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Lisa Sauer
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Kirsten Ackermann
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Anaïs Nassios
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Thiha Aung
- Centre of Plastic, Aesthetic, Hand and Reconstructive Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Silke Haerteis
- Institute of Molecular and Cellular Anatomy, University of Regensburg, Regensburg, Germany
| | - Antje J Bäumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Joachim Wegener
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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18
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Schiltz D, Tschernitz S, Ortner C, Anker A, Klein S, Felthaus O, Biermann N, Schreml J, Prantl L, Schreml S. Adipose Tissue in Multiple Symmetric Lipomatosis Shows Features of Brown/Beige Fat. Aesthetic Plast Surg 2020; 44:855-861. [PMID: 32157376 PMCID: PMC7280331 DOI: 10.1007/s00266-020-01666-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/25/2020] [Indexed: 12/16/2022]
Abstract
Introduction Multiple symmetric lipomatosis (MSL) (syn.: Launois–Bensaude Syndrome, benign symmetric lipomatosis) is a rare disease of fatty tissue. The pathophysiology of MSL still remains unclear, although several approaches have been described in order to understand it. Beside morphological characteristics and some molecular cell biological approaches, little is known about the histological and immunohistochemical characterization of adipose tissue from patients with MSL. Methods From the 45 patients with MSL in our database, 10 were included in the study. Fat tissue samples were collected from affected and unaffected areas. The forearm served as a control area as this area is not affected in MSL. The specimens were analyzed after selected stainings were taken (hematoxylin–eosin = HE, Elastica van Gieson, Ladewig, CD200, CIDEA, myf5, p107, Prdm16, Sca-1, syndecan, UCP1, MAC387, Glut4).
Results In patients suffering from MSL, no macroscopic or microscopic morphological difference could be found between affected and unaffected adipose tissue in HE stainings. The majority of samples showed positivity for UCP1 (9/10 clinically affected tissues, 7/10 clinically unaffected tissues) and CD200. Conclusion Marker profiles support the hypothesis that affected adipose tissue derives from brown or beige adipose tissue rather than from white fat. Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266. Electronic supplementary material The online version of this article (10.1007/s00266-020-01666-6) contains supplementary material, which is available to authorized users.
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Schreml S, Mickler M, Drexler K. Wheat-dependent exercise-induced anaphylaxis with Tri-a-14-sensitization as part of a lipid transfer protein syndrome. Allergo J 2020. [DOI: 10.1007/s15007-019-0005-3] [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: 10/25/2022]
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20
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Auerswald S, Schreml S, Meier R, Blancke Soares A, Niyazi M, Marschner S, Belka C, Canis M, Haubner F. Wound monitoring of pH and oxygen in patients after radiation therapy. Radiat Oncol 2019; 14:199. [PMID: 31711506 PMCID: PMC6849199 DOI: 10.1186/s13014-019-1413-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 09/17/2019] [Accepted: 10/30/2019] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Postradiogenic wound healing disorders are an important clinical problem. While a variety of treatment modalities are available, there is no strategy to objectively judge treatment success. The aim of this study was to evaluate a 2D luminescence imaging system for pH and oxygen in non-healing wounds after radiotherapy. METHODS Luminescence 2D imaging was performed with the VisiSens (Presens, Regensburg, Germany) 2D imaging systems A1 and A2 for oxygen and pH, respectively. Biocompatible planar luminescent sensor foils were applied to non-irradiated and irradiated skin as well as to radiogenic wounds of five patients and the pH and the oxygen saturation was determined. RESULTS pH measurements showed significant differences between non-irradiated skin (6.46 ± 0.18) and irradiated skin (6.96 ± 0.26). Radiogenic wounds exhibited the highest pH values (7.53 ± 0.26). Oxygen measurements revealed a mean oxygen saturation of non-irradiated skin of 6.19 ± 0.83 mmHg. The highest value of oxygen saturation (28.4 ± 2.4 mmHg) was found on irradiated skin while irradiated wounds had a poor oxygen saturation (9.4 ± 2.2 mmHg) (mean ± s.e.m.). CONCLUSION We found that routine measurement of pH and pO2 in patients could be easily integrated into the clinical routine. The results of the measurements show unfavorable pH and oxygen saturation conditions for wound healing in irradiated wounds. Interestingly, irradiated wounds exhibit a more pronounced hypoxia than irradiated skin which is reflected by an altered pH and pO2 compared to unirradiated skin, which has the potential to serve as a prognostic marker in the future. In addition to the objectification of the treatment success of postradiogenic wound healing disorders, the extent of skin toxicity could already be predicted during radiotherapy with this method.
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Affiliation(s)
- Steffen Auerswald
- Department of Otorhinolaryngology, University Medical Center Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | | | - Alexandra Blancke Soares
- Department of Otorhinolaryngology, University Medical Center Munich, Klinikum Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Maximilian Niyazi
- Department of Radiation Oncology, University Medical Center Munich, Munich, Germany
| | - Sebastian Marschner
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Claus Belka
- Department of Radiation Oncology, University Medical Center Munich, Munich, Germany
| | - Martin Canis
- Department of Otorhinolaryngology, University Medical Center Munich, Klinikum Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Medical Center Munich, Klinikum Großhadern, Marchioninistr. 15, 81377, Munich, Germany.
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21
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Lindner A, Marbach F, Tschernitz S, Ortner C, Berneburg M, Felthaus O, Prantl L, Kye MJ, Rappl G, Altmüller J, Thiele H, Schreml S, Schreml J. Calcyphosine-like (CAPSL) is regulated in Multiple Symmetric Lipomatosis and is involved in Adipogenesis. Sci Rep 2019; 9:8444. [PMID: 31186450 PMCID: PMC6559987 DOI: 10.1038/s41598-019-44382-1] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 05/13/2019] [Indexed: 11/09/2022] Open
Abstract
Little is known on the causes and pathogenesis of the adipose tissue disorder (familial) Multiple Symmetric Lipomatosis (MSL). In a four-generation MSL-family, we performed whole exome sequencing (WES) in 3 affected individuals and 1 obligate carrier and identified Calcyphosine-like (CAPSL) as the most promising candidate gene for this family. Screening of 21 independent patients excluded CAPSL coding sequence variants as a common monogenic cause, but using immunohistochemistry we found that CAPSL was down-regulated in adipose tissue not only from the index patient but also in 10 independent sporadic MSL-patients. This suggests that CAPSL is regulated in sporadic MSL irrespective of the underlying genetic/multifactorial cause. Furthermore, we cultivated pre-adipocytes from MSL-patients and generated 3T3-L1-based Capsl knockout and overexpressing cell models showing altered autophagy, adipogenesis, lipogenesis and Sirtuin-1 (SIRT1) expression. CAPSL seems to be involved in adipocyte biology and perturbation of autophagy is a potential mechanism in the pathogenesis of MSL. Downregulation of CAPSL and upregulation of UCP1 were common features in MSL fat while the known MSL genes MFN2 and LIPE did not show consistent alterations. CAPSL immunostainings could serve as first diagnostic tools in MSL clinical care with a potential to improve time to diagnosis and healthcare options.
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Affiliation(s)
- Angie Lindner
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany
| | - Felix Marbach
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany
| | - Sebastian Tschernitz
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Christine Ortner
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Oliver Felthaus
- Department of Plastic Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Lukas Prantl
- Department of Plastic Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Min Jeong Kye
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany
| | - Gunter Rappl
- Center for Molecular Medicine Cologne (CMMC) and Department of Internal Medicine I, University of Cologne, Cologne, Germany
| | - Janine Altmüller
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany.,Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany
| | - Holger Thiele
- Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany.
| | - Julia Schreml
- Institute of Human Genetics, University Hospital of Cologne, Cologne, Germany.
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22
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Schreml S. Scoring pyoderma gangrenosum. Br J Dermatol 2019; 180:438-439. [DOI: 10.1111/bjd.17343] [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)
- S. Schreml
- Department of Dermatology University Medical Centre Regensburg Germany, Franz‐Josef‐Strauss‐Allee 11 93053Regensburg Germany
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23
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Reinders Y, Meier RJ, Liebsch G, Pohl F, Schreml S, Prantl L, Haubner F. Imaging of pH and pO 2 gives insight in molecular processes of irradiated cells. Exp Dermatol 2019; 28:628-630. [PMID: 30776155 DOI: 10.1111/exd.13905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 05/15/2018] [Revised: 01/21/2019] [Accepted: 01/30/2019] [Indexed: 02/04/2023]
Abstract
One of the major challenges in radiation therapy is the interference with tissue repair processes due to hypoxic characteristics and pH dysregulation. In this study, we present dual imaging of pH and oxygenation in vitro based on luminescent biocompatible sensor foils that allow studying the effects of irradiation on different cell types in culture. Different sensitivities of fibroblast and oral squamous carcinoma cells were observed by complementing oxygen and pH differences with proliferation assays. This study highlights especially the distinct role of oxygen after irradiation and the difference in proliferation processes of irradiated normal dermal cells in contrast to irradiated tumor cells.
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Affiliation(s)
- Yvonne Reinders
- Department of Otorhinolaryngology, University Hospital Regensburg, Regensburg, Germany.,Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany.,Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund, Germany
| | | | | | - Fabian Pohl
- Department of Radiotherapy, University Hospital Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Lukas Prantl
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, Ludwig-Maximilians-University Munich, Munich, Germany
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Nassios A, Wallner S, Haferkamp S, Klingelhöffer C, Brochhausen C, Schreml S. Expression of proton-sensing G-protein-coupled receptors in selected skin tumors. Exp Dermatol 2018; 28:66-71. [PMID: 30339292 DOI: 10.1111/exd.13809] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/07/2018] [Accepted: 10/11/2018] [Indexed: 01/18/2023]
Abstract
BACKGROUND In humans, there are four known proton-sensing G-Protein-coupled receptors (pH-GPCRs): GPR4 (GPR19), TDAG8 (GPR65, T-cell death-associated gene 8), OGR1 (GPR68, ovarian cancer GPCR1) and G2A (GPR132, G2 accumulation protein). They are known to be involved in sensing changes of extracellular proton concentrations in the acidic microenvironment of tumors, which leads to altered cell proliferation, migration, metastasis, immune cell function and inflammation. However, little is known about the expression of pH-GPCRs in the skin and especially skin cancers. AIM We studied the expression of pH-GPCRs in selected skin cancers, that is Merkel cell carcinoma (MCC), dermatofibrosarcoma protuberans (DFSP), atypical fibroxanthoma (AFX) and pleomorphic dermal sarcoma (PDS). METHODS We did immunohistochemistry and immunofluorescence to analyse the expression of GPR4, TDAG8, OGR1 and G2A using paraffin-embedded tissue samples (n = 4, exceptions: PDS GPR4/GPR65 n = 5, AFX GPR132 n = 3) from patients suffering from MCC, DFSP, AFX and PDS. RESULTS (a) GPR4 was expressed on all AFX and PDS specimens. All AFX and MCC showed a positive expression of G2A. All PDS exhibited a strong positive expression of G2A. (b) MCCs neither expressed GPR4 nor TDAG8. All DFSP showed no expression of TDAG8. (c) For any other combination of GPCR and skin disease, we found positive/negative mixed results. CONCLUSIONS These are the first results on pH-GPCRs in selected skin cancers. We provide evidence that these GPCRs are differentially expressed on the various types of skin cancers and that they can potentially be addressed as a therapeutic target in extensive disease.
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Affiliation(s)
- Anaïs Nassios
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Susanne Wallner
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Sebastian Haferkamp
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Christoph Klingelhöffer
- Department of Maxillofacial Surgery, University Medical Center Regensburg, Regensburg, Germany
| | | | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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25
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Hoffmann S, Schreml S. [Large waxy, yellowish-reddish tumor on the temple of a 79-year-old man : Preparation for the specialist examination: part 2]. Hautarzt 2018; 69:81-85. [PMID: 30374543 DOI: 10.1007/s00105-018-4232-4] [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: 11/29/2022]
Affiliation(s)
- S Hoffmann
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Deutschland
| | - S Schreml
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Deutschland.
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26
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Weiß KT, Zeman F, Schreml S. A randomized trial of early endovenous ablation in venous ulceration: a critical appraisal: Original Article: Gohel MS, Heatly F, Liu X et al. A randomized trial of early endovenous ablation in venous ulceration. N Engl J Med 2018; 378:2105-114. Br J Dermatol 2018; 180:51-55. [PMID: 30238444 DOI: 10.1111/bjd.17237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Gohel et al. aimed to compare early endovenous ablation vs. deferred endovenous ablation of superficial venous reflux with regard to time to healing of venous leg ulcers, rate of healing at 24 weeks, recurrence rate, ulcer-free time and health-related quality of life. SETTING AND DESIGN This multicentre, parallel-group (ratio 1 : 1), randomized controlled trial was conducted in a vascular surgery department setting at 20 participating centres across the U.K. STUDY EXPOSURE A total of 450 patients with venous leg ulcers were randomly assigned to receive compression therapy and undergo early endovenous ablation of superficial venous reflux within 2 weeks after randomization (early-intervention group) or to receive compression therapy alone, with consideration of endovenous ablation deferred until after the ulcer was healed or until 6 months after randomization if the ulcer was unhealed (deferred-intervention group). OUTCOMES The primary outcome was the time to ulcer healing. Secondary outcomes were the rate of ulcer healing at 24 weeks, the rate of ulcer recurrence, the length of time free from ulcers (ulcer-free time) during the first year after randomization, and patient-reported health-related quality of life. TRIAL INTERVENTIONS Endovenous laser or radiofrequency ablation, ultrasound-guided foam sclerotherapy, or nonthermal, nontumescent methods of treatment (such as cyanoacrylate glue or mechanochemical ablation) were performed either alone or in combination. The treating clinical team determined the method and strategy of endovenous treatment. RESULTS The time to ulcer healing was shorter in the early-intervention group than in the deferred-intervention group. Furthermore, more patients had healed ulcers with early intervention [hazard ratio for ulcer healing 1·38, 95% confidence interval (CI) 1·13-1·68; P = 0·001]. The median time to ulcer healing was 56 days (95% CI 49-66) in the early-intervention group and 82 days (95% CI 69-92) in the deferred-intervention group. The rate of ulcer healing at 24 weeks was 85·6% in the early-intervention group and 76·3% in the deferred-intervention group. The median ulcer-free time during the first year after trial enrolment was 306 days (interquartile range 240-328) in the early-intervention group and 278 days (interquartile range 175-324) in the deferred-intervention group (P = 0·002). The most common complications were pain and deep vein thrombosis (DVT) (early-intervention group: pain, six of 28; DVT, nine of 28; deferred-intervention group: pain, six of 24; DVT, three of 24). CONCLUSIONS Gohel et al. conclude that early endovenous ablation of superficial venous reflux results in faster healing of venous leg ulcers than deferred endovenous ablation. Patients assigned to the early-intervention group also had longer ulcer-free time during the first year after randomization.
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Affiliation(s)
- K T Weiß
- Department of Dermatology and, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - F Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - S Schreml
- Department of Dermatology and, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
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27
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Brochhausen C, Babel M, Schmitt VH, Grevenstein D, Schreml S, Meyer-Scholten C, Klaus G. [Skin ulcerations due to CINCA syndrome and its successful treatment with prostaglandin E 1]. Z Rheumatol 2018; 77:633-636. [PMID: 30066026 DOI: 10.1007/s00393-018-0515-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Indexed: 11/28/2022]
Abstract
Chronic infantile neurological cutaneous and articular syndrome (CINCA) is a disorder with a defect in the CIAS1 (NLRP3) gene and the altered gene product cryopyrin leads to inflammasome activation with increased IL-1beta synthesis. The activation pathway of the transcription factor NF-κB is also affected, which plays a role in angiogenesis. With respect to the angiogenesis stimulating ability of prostaglandin E1, we treated a female patient with CINCA syndrome and conventionally non-responsive skin ulcers with prostaglandin E1 infusions (6 μg/kg bw/24 h/5 day) followed by wound healing lasting over 3 weeks. After 1 year of periodic infusions, the skin defects were permanently closed.
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Affiliation(s)
- C Brochhausen
- Laboratory for Regenerative Pathology and Interface Research (REPAIRlab), Institut für Pathologie, Universität Regensburg, Franz Josef Strauss Allee 11, 93053, Regensburg, Deutschland.
- Zentrum für Rheumapathologie GmbH, Universitätsmedizin Mainz, Mainz, Deutschland.
| | - M Babel
- Zentrum für Rheumapathologie GmbH, Universitätsmedizin Mainz, Mainz, Deutschland
| | - V H Schmitt
- Zentrum für Kardiologie, Universitätsmedizin Mainz, Mainz, Deutschland
| | - D Grevenstein
- Klinik und Poliklinik für Orthopädie und Unfallchirurgie, Uniklinik Köln, Köln, Deutschland
| | - S Schreml
- Klinik und Poliklinik für Dermatologie, Universität Regensburg, Regensburg, Deutschland
| | - C Meyer-Scholten
- Zentrum für Rheumapathologie GmbH, Universitätsmedizin Mainz, Mainz, Deutschland
| | - G Klaus
- Kindernephrologie und Transplantationsnephrologie, Uniklinikum Gießen und Marburg, Marburg, Deutschland
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Hoffmann S, Berneburg M, Schreml S. Bullous Pemphigoid Associated with Adalimumab Therapy in a Patient with Ulcerative Colitis. Case Rep Dermatol 2018; 10:145-148. [PMID: 29928204 PMCID: PMC6006603 DOI: 10.1159/000489163] [Citation(s) in RCA: 11] [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: 02/07/2018] [Accepted: 04/10/2018] [Indexed: 11/23/2022] Open
Abstract
Bullous pemphigoid (BP) is a blistering autoimmune disease mainly observed in elderly patients. Several triggers are known for this autoimmune disease and some drugs are known to be a cause of BP. However, there are only few case reports on the induction of BP under adalimumab therapy. Other autoimmune diseases, such as lupus erythematosus, are also known to occur under TNF inhibition. Here, we report on an 81-year-old patient who received adalimumab for ulcerative colitis and subsequently developed BP. Other causes of BP (tumors, other drugs, viral or toxoplasma infections) were excluded. We initiated a topical and systemic therapy (prednisolone 1 mg/kg/day) and stopped the adalimumab injections. The patient's symptoms resolved quickly and we were able to taper corticosteroid therapy. This rare case highlights the importance to monitor for autoimmune events during TNF inhibition.
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Affiliation(s)
- Sebastian Hoffmann
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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29
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Klingelhöffer C, Gründlinger A, Spanier G, Schreml S, Gottsauner M, Mueller S, Meier JK, Reichert TE, Ettl T. Patients with unilateral squamous cell carcinoma of the tongue and ipsilateral lymph node metastasis do not profit from bilateral neck dissection. Oral Maxillofac Surg 2018; 22:185-192. [PMID: 29600319 DOI: 10.1007/s10006-018-0690-1] [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: 10/09/2017] [Accepted: 03/13/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the necessity of elective bilateral neck dissection for treating strict unilateral squamous cell carcinoma (SCC) of the tongue. METHODS A cohort of 169 patients with unilateral non-midline crossing SCCs of the tongue treated by local resection and neck dissection was investigated. Study endpoints were nodal relapse and overall survival. The mean follow-up was 7.4 years. RESULTS A total of 146 (88.1%) patients were treated by neck dissection. Lymph node metastases were diagnosed in 50 (34.2%) patients. Only two (1.1%) had contralateral lymph node metastases. Risk factors for developing a primary lymph node metastasis were size of tumor (T2/T3, p = 0.03; OR = 2.2), lymphangiosis (p = 0.003; OR = 4.7), and higher-grade differentiation (p = 0.051; OR = 2.43). Metachronous lymph node metastases were detected in 23 (13.6%) patients (19 ipsilateral, one contralateral and three bilateral). The main risk factor for developing a metachronous lymph node metastasis was the presence of a primary lymph node metastasis (p = 0.004; HR = 4.65). Patients with initial neck dissection came up with lower 5-year recurrence rates (13.6%) compared to patients without neck dissection (27.3%; p = 0.014). Bilateral neck dissection showed no advantage regarding nodal relapse free and overall survival (p = 0.606) compared to unilateral neck dissection irrespective of initial N or T stage. CONCLUSION Patients with unilateral SCC of the tongue benefit from an ipsilateral neck dissection regarding nodal relapse. The value of elective bilateral neck dissection as standard treatment seems questionable even if positive lymph nodes were diagnosed ipsilateral at primary therapy.
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Affiliation(s)
- Christoph Klingelhöffer
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
| | - Andreas Gründlinger
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Gerrit Spanier
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Maximilian Gottsauner
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Steffen Mueller
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Johannes K Meier
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Torsten E Reichert
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Tobias Ettl
- Department of Cranio- and Maxillofacial Surgery, Hospital of the University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
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Weiß KT, Fante M, Köhl G, Schreml J, Haubner F, Kreutz M, Haverkampf S, Berneburg M, Schreml S. Proton-sensing G protein-coupled receptors as regulators of cell proliferation and migration during tumor growth and wound healing. Exp Dermatol 2018; 26:127-132. [PMID: 27623507 DOI: 10.1111/exd.13209] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2016] [Indexed: 12/20/2022]
Abstract
Dysregulation of pH is a feature of both tumor growth and tissue repair. In tumors, microenvironmental changes, like in lactate metabolism, lead to altered intra- and extracellular pH (pHi , pHe ) and vice versa. In wounds, barrier disruption results in extensive variations in pHe on the wound surface. It is known that altered extracellular proton concentrations have a major impact on cell turnover and migration as well as on the metabolic activity of cells involved in tumor spread and wound closure. The proton-sensing G protein-coupled receptors (GPCRs) GPR4, GPR65 (TDAG8), GPR68 (OGR1) and GPR132 (G2A) are activated via a decrease in pHe and transduce this signal to molecular intracellular pathways. Based on the current knowledge, we speculate on the role of proton-sensing GPCRs in wound healing and on their potential as mechanistic linkers of tumor growth and tissue repair.
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Affiliation(s)
- Katharina T Weiß
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Matthias Fante
- Department of Internal Medicine III, Oncology, University Medical Center Regensburg, Regensburg, Germany
| | - Gudrun Köhl
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Julia Schreml
- Institute of Human Genetics, University of Cologne, Cologne, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Medical Center Regensburg, Regensburg, Germany
| | - Marina Kreutz
- Department of Internal Medicine III, Oncology, University Medical Center Regensburg, Regensburg, Germany
| | - Sonja Haverkampf
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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Ettinger M, Schreml J, Wirsching K, Berneburg M, Schreml S. 原发性免疫缺陷的皮肤症状--如何找到要检查的基因. Br J Dermatol 2018. [DOI: 10.1111/bjd.16298] [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: 11/27/2022]
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Ettinger M, Schreml J, Wirsching K, Berneburg M, Schreml S. Skin signs of primary immunodeficiencies: how to find the genes to check. Br J Dermatol 2018. [DOI: 10.1111/bjd.16280] [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: 11/29/2022]
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Ettinger M, Schreml J, Wirsching K, Berneburg M, Schreml S. Skin signs of primary immunodeficiencies: how to find the genes to check. Br J Dermatol 2018; 178:335-349. [DOI: 10.1111/bjd.15870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2017] [Indexed: 12/11/2022]
Affiliation(s)
- M. Ettinger
- Department of Dermatology; University Medical Center Regensburg; Franz-Josef-Strauss-Allee 11 93053 Regensburg Germany
| | - J. Schreml
- Department of Otorhinolaryngology; University Medical Center Regensburg; Franz-Josef-Strauss-Allee 11 93053 Regensburg Germany
| | - K. Wirsching
- Institute of Human Genetics; University Hospital of Cologne; Cologne Germany
| | - M. Berneburg
- Department of Dermatology; University Medical Center Regensburg; Franz-Josef-Strauss-Allee 11 93053 Regensburg Germany
| | - S. Schreml
- Department of Dermatology; University Medical Center Regensburg; Franz-Josef-Strauss-Allee 11 93053 Regensburg Germany
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Affiliation(s)
- S Schreml
- Department of Dermatology, University Medical Centre Regensburg, Regensburg, Germany
| | - M Berneburg
- Department of Dermatology, University Medical Centre Regensburg, Regensburg, Germany
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von Suesskind-Schwendi M, Boxhammer E, Hirt SW, Schreml S, Schmid C, Wollin L, Lehle K. The activity of nintedanib in an animal model of allogenic left lung transplantation resembling aspects of allograft rejection. Exp Lung Res 2017; 43:259-270. [PMID: 29035589 DOI: 10.1080/01902148.2017.1354408] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 10/18/2022]
Abstract
AIM OF THE STUDY The prevention and treatment of chronic lung allograft dysfunction (CLAD) after lung transplantation (LTx) remain unsatisfactory. Growth factors may play an important role in the development of CLAD. This study evaluated the effects of nintedanib, a receptor tyrosine kinase inhibitor, in the treatment of CLAD after experimental LTx. MATERIALS AND METHODS A rat model of left lung allo-transplantation (Fisher 344 to Wistar Kyoto) was used to evaluate the effect of nintedanib (50 mg/kg per day) on the development of CLAD. Therapy with nintedanib began 2 days before LTx and ended on postoperative day (POD) 20 (n = 6) or 60 (n = 6). Nontreated animals who underwent LTx (n = 12) were used as controls, whereas naïve lungs (n = 24) served as reference for physiological healthy organs without transplantation damage or medical effects. Acute and chronic rejection were evaluated on POD 20 and 60, respectively. RESULTS Immunohistologic analysis showed a decrease in growth factors/receptors on POD 60 (nintedanib-treated vs. nontreated controls: platelet-derived growth factor (PDGF) A: [P ≤ 0.001]; PDGF receptor-α: [P ≤ 0.001]; vascular endothelial growth factor (VEGF) A: [P ≤ 0.001]; VEGF receptor-2: [P ≤ 0.001]). However, no reductions in fibrotic changes were observed in nintedanib-treated allografts compared with nontreated allografts. Although nintedanib treatment started before LTx none of the animals showed impaired wound healing. No dehiscence of the sutures of the bronchus, vessels or skin, or stenosis of the bronchus was found. CONCLUSION In conclusion, while nintedanib reduced the expression of growth factors/receptors in a rat LTx model, a reduction in fibrotic alterations was not observed at POD 60.
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Affiliation(s)
| | - Elke Boxhammer
- a Department of Cardiothoracic Surgery , University Medical Center Regensburg , Regensburg , Germany
| | - Stephan W Hirt
- a Department of Cardiothoracic Surgery , University Medical Center Regensburg , Regensburg , Germany
| | - Stephan Schreml
- b Department of Dermatology , University Medical Center Regensburg , Regensburg , Germany
| | - Christof Schmid
- a Department of Cardiothoracic Surgery , University Medical Center Regensburg , Regensburg , Germany
| | - Lutz Wollin
- c Boehringer Ingelheim Pharma , Biberach , Germany
| | - Karla Lehle
- a Department of Cardiothoracic Surgery , University Medical Center Regensburg , Regensburg , Germany
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Lamby P, Jung F, Graf S, Schellenberg L, Falter J, Platz-da-Silva N, Schreml S, Prantl L, Franke RP, Jung EM. Effect of iodinated contrast media on renal perfusion: A randomized comparison study in pigs using quantitative contrast-enhanced ultrasound (CEUS). Sci Rep 2017; 7:13125. [PMID: 29030579 PMCID: PMC5640687 DOI: 10.1038/s41598-017-13253-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 09/08/2017] [Indexed: 12/17/2022] Open
Abstract
The administration of iodinated contrast media (CM) can cause microcirculatory disorder leading to acute renal dysfunction. In a prospective, randomized investigation two CM (Iodixanol vs Iopromide) were compared in 16 pigs. Each animal received 10 intra-aortal injections (5 ml Iodixanol or 4.32 ml Iopromide). Microcirculation was assessed using contrast-enhanced ultrasound (CEUS) directly on the kidney surface using time-to-peak (TTP) and blood-volume-analysis. Macroscopic observations were documented. Post mortem residual CM distribution in the kidneys was detected using X-ray. TTP was significantly prolonged over the descending vasa recta of the Iopromide group. This coincided with a visible marble-like pattern on the kidney surface occurring in 30 out of 80 Iopromide-injections but in 4 out of 80 Iodixanol-injections (p = 0.007). The blood volume over the entire kidney did not change after Iodixanol-application, but decreased by about 6.1% after Iopromide-application. The regional blood volume in the renal cortex showed a tendency to decrease by about 13.5% (p = 0.094) after Iodixanol-application, and clearly decreased by about 31.7% (p = 0.022) after Iopromide-application. The study revealed a consistent influence of repeated injections of two different CM on the kidney perfusion using three different imaging methods (CEUS analysis, macroscopic observation and X-ray analysis).
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Affiliation(s)
- Philipp Lamby
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
| | - Friedrich Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstrasse 55, 14513, Teltow, Germany
| | - Stefanie Graf
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Lotte Schellenberg
- Department of Anesthesiology, University of Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Johannes Falter
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Natascha Platz-da-Silva
- Department of Radiology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Lukas Prantl
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Ralf P Franke
- Central Institute for Biomedical Engineering, Department of Biomaterials, University of Ulm, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Ernst M Jung
- Department of Radiology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
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Fürtjes T, Weiss KT, Filbry A, Rippke F, Schreml S. Impact of a pH 5 Oil-in-Water Emulsion on Skin Surface pH. Skin Pharmacol Physiol 2017; 30:292-297. [PMID: 28972952 DOI: 10.1159/000480300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 03/14/2017] [Accepted: 08/13/2017] [Indexed: 01/23/2023]
Abstract
BACKGROUND Human skin surface has a physiologically acidic pH (pHss). In cases of increased pHss, the acidity of the skin can be restored by topical formulations. We tested a pH 5 oil-in-water (O/W) emulsion for pHss regeneration and stabilization. METHODS We performed 2 experiments with 10 female study subjects in each. In both experiments, 2D imaging with luminescent sensor foils was used to determine pHss. Alkalization was reached by washing the volar forearm with a soap bar and warm running tap water for 20 min. Experiment 1: after defining the baseline pHss, we alkalized the respective area and measured pHss over a duration of 5 h, while applying emulsion every hour. Experiment 2: study subjects used the emulsion twice daily for 1 week. Then, pHss was measured before and after 5 min of washing a treated and an untreated area on the volar forearm. RESULTS (1) 5 h after alkalization, the treated arm showed a significantly lower pHss than the untreated one (5.87 ± 0.03 vs. 6.05 ± 0.03); (2) after washing, the treated area had a significantly lower pHss than controls (6.13 ± 0.03 vs. 6.27 ± 0.05). CONCLUSIONS The tested pH 5 O/W emulsion seems to improve regeneration and stabilization of pHss.
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Affiliation(s)
- Theresa Fürtjes
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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Affiliation(s)
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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39
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Fiedler M, Weber F, Hautmann MG, Haubner F, Reichert TE, Klingelhöffer C, Schreml S, Meier JK, Hartmann A, Ettl T. Biological predictors of radiosensitivity in head and neck squamous cell carcinoma. Clin Oral Investig 2017; 22:189-200. [PMID: 28315964 DOI: 10.1007/s00784-017-2099-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 10/04/2016] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The aim of this study is to investigate the influence of prognostic biomarkers on radiosensitivity and survival of advanced head and neck squamous cell carcinomas treated by primary (chemo)radiation. MATERIAL AND METHODS The clinicopathological data and immunohistochemical staining of p16, c-Met, survivin, PD-1, and PD-L1 of 82 primarily (chemo)irradiated patients with head and neck squamous cell carcinoma were analyzed. Associations with local and locoregional radiation response, overall survival (OS), disease-free (DFS), and disease-specific survival (DSS) were assessed. RESULTS Complete tumor response was associated with increased patient age (p = 0.007), N0-status (p = 0.022), M0-status (p = 0.007), and p16-positivity (p = 0.022). High PD-L1 was associated with M0-status (p = 0.026) and indicated tumor response to irradiation (p = 0.057); survivin expression showed higher rates of response failure (p = 0.073). Low PD-1 was associated with increased T-stage (p = 0.029) and local recurrence (p = 0.014). High PD-1 was strongly correlated with PD-L1-positive tumor infiltrating lymphocytes (p < 0.001). Low PD-L1 showed a significant correlation with high c-Met expression (p = 0.01). Significant predictors for unfavorable univariate survival were incomplete tumor response (DSS, p < 0.001), single radiotherapy (DSS, p = 0.002), M1-status (DSS, p < 0.001), decreased radiation dose (DSS, p = 0.014), high survivin (DSS, p = 0.045), and high c-Met (OS, p < 0.05). Survivin and c-Met also showed prognostic significance in multivariate survival analysis. CONCLUSIONS P16 and PD-L1 indicate radiosensitivity, whereas survivin and c-Met implicate radioresistance in primarily (chemo)irradiated head and neck squamous cell carcinomas. The role of the PD-1/PD-L1 immune checkpoints in radiation response and survival merits further investigation. CLINICAL RELEVANCE The findings may improve patient-specific therapy according to individual tumor characteristics.
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Affiliation(s)
- Mathias Fiedler
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Florian Weber
- Institute of Pathology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Matthias G Hautmann
- Department of Radiotherapy, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Torsten E Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Christoph Klingelhöffer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Johannes K Meier
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Arndt Hartmann
- Institute of Pathology, University Hospital of Erlangen, Krankenhausstraße 8/10, 91054, Erlangen, Germany
| | - Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
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Haverkampf S, Heider J, Weiß KT, Haubner F, Ettl T, Schreml J, Hedtrich S, von Süßkind-Schwendi M, Berneburg M, Karrer S, Dissemond J, Schreml S. NHE1 expression at wound margins increases time-dependently during physiological healing. Exp Dermatol 2017; 26:124-126. [PMID: 27249231 DOI: 10.1111/exd.13097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2016] [Indexed: 11/29/2022]
Abstract
Wound repair is an orchestrated process, encompassing the phases of inflammation, proliferation and tissue remodeling. In this context, sodium hydrogen exchanger 1 (NHE1) is crucial to epidermal barrier integrity and acidification. Recently, we found that extracellular pH (pHe) on wound surfaces is dramatically increased initially after barrier disruption, and that pHe decreases gradually during physiological healing. Additionally, we have shown that spatial NHE1-patterns account for pHe-gradients on surfaces of chronic wounds. Here, we show that NHE1-expression is very low at margins initially after wounding and that it increases massively during the time-course of physiolgical healing. This finding is in accordance with the decrease of pHe on wound surfaces, which we reported on in previous works. Thus, we show that NHE1 is an interesting target when it comes to modification of surface pHe on wounds, both acute and chronic, and that NHE1 is time-dependently regulated in physiological healing.
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Affiliation(s)
- Sonja Haverkampf
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Judith Heider
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Katharina T Weiß
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Medical Center Regensburg, Regensburg, Germany
| | - Tobias Ettl
- Department of Maxillofacial Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Julia Schreml
- Institute for Human Genetics, University of Cologne, Cologne, Germany
| | - Sarah Hedtrich
- Department of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | | | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Sigrid Karrer
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Joachim Dissemond
- Department of Dermatology, Venereology, and Allergology, University Medical Center Essen, Essen, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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Brand A, Singer K, Koehl GE, Kolitzus M, Schoenhammer G, Thiel A, Matos C, Bruss C, Klobuch S, Peter K, Kastenberger M, Bogdan C, Schleicher U, Mackensen A, Ullrich E, Fichtner-Feigl S, Kesselring R, Mack M, Ritter U, Schmid M, Blank C, Dettmer K, Oefner PJ, Hoffmann P, Walenta S, Geissler EK, Pouyssegur J, Villunger A, Steven A, Seliger B, Schreml S, Haferkamp S, Kohl E, Karrer S, Berneburg M, Herr W, Mueller-Klieser W, Renner K, Kreutz M. LDHA-Associated Lactic Acid Production Blunts Tumor Immunosurveillance by T and NK Cells. Cell Metab 2016; 24:657-671. [PMID: 27641098 DOI: 10.1016/j.cmet.2016.08.011] [Citation(s) in RCA: 994] [Impact Index Per Article: 124.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 04/20/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
Abstract
Elevated lactate dehydrogenase A (LDHA) expression is associated with poor outcome in tumor patients. Here we show that LDHA-associated lactic acid accumulation in melanomas inhibits tumor surveillance by T and NK cells. In immunocompetent C57BL/6 mice, tumors with reduced lactic acid production (Ldhalow) developed significantly slower than control tumors and showed increased infiltration with IFN-γ-producing T and NK cells. However, in Rag2-/-γc-/- mice, lacking lymphocytes and NK cells, and in Ifng-/- mice, Ldhalow and control cells formed tumors at similar rates. Pathophysiological concentrations of lactic acid prevented upregulation of nuclear factor of activated T cells (NFAT) in T and NK cells, resulting in diminished IFN-γ production. Database analyses revealed negative correlations between LDHA expression and T cell activation markers in human melanoma patients. Our results demonstrate that lactic acid is a potent inhibitor of function and survival of T and NK cells leading to tumor immune escape.
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Affiliation(s)
- Almut Brand
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Katrin Singer
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Gudrun E Koehl
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Marlene Kolitzus
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Gabriele Schoenhammer
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Annette Thiel
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Carina Matos
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Christina Bruss
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Sebastian Klobuch
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Katrin Peter
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany; Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Michael Kastenberger
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Christian Bogdan
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Ulrike Schleicher
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Andreas Mackensen
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, 91054 Erlangen, Germany
| | - Evelyn Ullrich
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, 91054 Erlangen, Germany; Cellular Immunology, Pediatric Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine of the University Hospital Frankfurt, Goethe-University, 60590 Frankfurt, Germany
| | - Stefan Fichtner-Feigl
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Rebecca Kesselring
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Matthias Mack
- Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany; Department of Internal Medicine II - Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Uwe Ritter
- Institute of Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Maximilian Schmid
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany; Institute of Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Christian Blank
- Division of Immunology, the Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam 1066CX, the Netherlands
| | - Katja Dettmer
- Institute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany
| | - Peter J Oefner
- Institute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany
| | - Petra Hoffmann
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany; Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Stefan Walenta
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Edward K Geissler
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Jacques Pouyssegur
- Institute of Research on Cancer and Aging, University of Nice-Sophia Antipolis, Centre A. Lacassagne, 06189 Nice, France; Centre Scientifique de Monaco (CSM), 98000 Monaco, Monaco
| | - Andreas Villunger
- Medical University Innsbruck, Biocenter, Division of Developmental Immunology, 6020 Innsbruck, Austria; Tyrolean Cancer Research Institute, 6020 Innsbruck, Austria
| | - André Steven
- Martin Luther University Halle-Wittenberg, Institute of Medical Immunology Halle/Saale, 06112 Halle, Germany
| | - Barbara Seliger
- Martin Luther University Halle-Wittenberg, Institute of Medical Immunology Halle/Saale, 06112 Halle, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Sebastian Haferkamp
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Elisabeth Kohl
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Sigrid Karrer
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Wolfgang Mueller-Klieser
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Kathrin Renner
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany; Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany
| | - Marina Kreutz
- Department of Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany; Regensburg Center for Interventional Immunology, University of Regensburg, 93053 Regensburg, Germany.
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Schreml S. The autoinflammatory pyoderma/acne (PA) syndromes: just interleukin-1-diseases? Br J Dermatol 2016; 175:858. [DOI: 10.1111/bjd.14830] [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: 11/29/2022]
Affiliation(s)
- S. Schreml
- Department of Dermatology; University Medical Centre Regensburg; Franz-Josef-Strauss-Allee 11 93053 Regensburg Germany
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Schucht K, Schröder J, Siegmund H, Grafe C, Schreml S. Nodular Cutaneous Amyloidosis at the Temple. Case Rep Dermatol 2016; 8:193-6. [PMID: 27504090 PMCID: PMC4965534 DOI: 10.1159/000447234] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 11/19/2022] Open
Abstract
A 52-year-old woman presented with a large partially yellow and erythematous tumor on her right temple. She reported that it had grown over the last 4 years. Regional lymph nodes were impalpable. A punch biopsy showed eosinophilic material in the dermis and subcutis. Immunohistochemistry showed positive staining for kappa and lambda light chains. Electron microscopy showed the typical amyloid fibrils (7–10 nm in diameter). There was no evidence of systemic amyloidosis, paraproteinemia or underlying plasmacytoma. The tumor was completely removed via curettage. At follow-up, the patient presented in good health with no signs of relapse.
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Affiliation(s)
- Kathrin Schucht
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Josef Schröder
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Heiko Siegmund
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Claudia Grafe
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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Affiliation(s)
- S. Schreml
- Department of Dermatology University Medical Centre Regensburg Franz‐Josef‐Strauss‐Allee 11 93053 Regensburg Germany
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Abstract
A 79-year-old man presented with a large tumor on the left side of his head, which had grown over 5 years. Regional lymph nodes were impalpable and computed tomography revealed no signs of bone infiltration. Histology showed that the entire dermis was filled with amorphous eosinophilic material. Immunohistochemistry was negative for cytokeratin, but showed that the dermis and parts of the subcutis were filled with amyloid consisting of immunoglobulin light chains. There were no signs of paraproteinemia or underlying plasmocytoma. In electron microscopy, the typical amyloid fibrils were found. The tumor was completely removed via curettage. At 1-year follow-up, the patient was doing fine with no signs of relapse or systemic disease.
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Affiliation(s)
- Sonja Haverkampf
- Department of Dermatology, University Medical Center Regensburg, Germany
| | - Katja Evert
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Josef Schröder
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Germany
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Wiesinger I, Schreml S, Wohlgemuth W, Stroszczynski C, Jung E. Perfusion quantification of vascular malformations using contrast-enhanced ultrasound (CEUS) with time intensity curve analysis before and after treatment: First results. Clin Hemorheol Microcirc 2016; 62:283-90. [DOI: 10.3233/ch-151962] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- I. Wiesinger
- Institute of Radiology, University Hospital Regensburg, Franz-Josef-Strauss-Allee, Regensburg, Germany
| | - S. Schreml
- Institute of Dermatology, University Hospital Regensburg, Franz-Josef-Strauss-Allee, Regensburg, Germany
| | - W.A. Wohlgemuth
- Institute of Radiology, University Hospital Regensburg, Franz-Josef-Strauss-Allee, Regensburg, Germany
| | - C. Stroszczynski
- Institute of Radiology, University Hospital Regensburg, Franz-Josef-Strauss-Allee, Regensburg, Germany
| | - E.M. Jung
- Institute of Radiology, University Hospital Regensburg, Franz-Josef-Strauss-Allee, Regensburg, Germany
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Sander D, Schröder J, Schönbuchner I, Schreml J, Karrer S, Berneburg M, Schreml S. Erythrodermia Congenitalis Ichthyosiformis Bullosa of Brocq. Case Rep Dermatol 2016; 8:19-21. [PMID: 26933410 PMCID: PMC4772537 DOI: 10.1159/000443695] [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] [Indexed: 11/19/2022] Open
Abstract
A 50-year-old man presented with congenital scaling and hyperkeratosis on his palms, the soles of his feet and the extensor areas of his joints. The flexural areas were unaffected. His maternal grandmother, questionably his maternal uncle, his mother, all three brothers, one of his two sisters as well as two nephews and three nieces have or had similar skin changes. A punch biopsy was taken from the left palm. Clinical and histological signs led to the diagnosis of erythrodermia congenitalis ichthyosiformis bullosa of Brocq. We confirmed this genetically and found a heterozygous duplication (c.1752dupT) in the keratin 1 gene (KRT-1). To our knowledge, this is the first case of this skin condition reported in the literature with a heterozygous duplication (c.1752dupT) in KRT-1.
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Affiliation(s)
- Dorothea Sander
- Department of DermatologyCentral Electron Microscopy Lab at the Institute of Pathology, Regensburg, Germany
| | - Josef Schröder
- Central Electron Microscopy Lab at the Institute of Pathology, Regensburg, Germany
| | - Ines Schönbuchner
- Department of Human Genetics, University Medical Center Regensburg, Regensburg, Germany
| | - Julia Schreml
- Institute for Human Genetics, University of Cologne, Cologne, Germany
| | - Sigrid Karrer
- Department of DermatologyCentral Electron Microscopy Lab at the Institute of Pathology, Regensburg, Germany
| | - Mark Berneburg
- Department of DermatologyCentral Electron Microscopy Lab at the Institute of Pathology, Regensburg, Germany
| | - Stephan Schreml
- Department of DermatologyCentral Electron Microscopy Lab at the Institute of Pathology, Regensburg, Germany
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Haubner F, Muschter D, Pohl F, Schreml S, Prantl L, Gassner HG. A Co-Culture Model of Fibroblasts and Adipose Tissue-Derived Stem Cells Reveals New Insights into Impaired Wound Healing After Radiotherapy. Int J Mol Sci 2015; 16:25947-58. [PMID: 26528967 PMCID: PMC4661794 DOI: 10.3390/ijms161125935] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/29/2015] [Accepted: 10/20/2015] [Indexed: 12/16/2022] Open
Abstract
External radiation seems to be associated with increased amounts of cytokines and other cellular modulators. Impaired microcirculation and fibrosis are examples of typical long term damage caused by radiotherapy. Adipose tissue-derived stem cells (ASC) are discussed to enhance wound healing, but their role in wounds due to radiotherapy is poorly understood. Normal human fibroblasts (NHF) and ASCs were co-cultured and external radiation with doses from 2-12 Gray (Gy) was delivered. Cell proliferation and mRNA levels of matrix metalloproteinases (MMP1, MMP2 and MMP13) were determined 48 h after irradiation of the co-cultures by qPCR. Additionally, tissue inhibitors of matrix metalloproteinases (TIMP1, TIMP2) were determined by enzyme-linked immunosorbent assay (ELISA). There was a reduction of cell proliferation after external radiation in mono-cultures of NHFs and ASCs compared to controls without irradiation. The co-culture of ASCs and NHFs showed reduced impairment of cell proliferation after external radiation. Gene expression of MMP1 and MMP13 was reduced after external irradiation in NHF. MMP2 expression of irradiated NHFs was increased. In the co-culture setting, MMP1 and MMP2 gene expression levels were upregulated. TIMP1 and TIMP2 protein expression was increased after irradiation in NHFs and their co-cultures with ASCs. ASCs seem to stimulate cell proliferation of NHFs and modulate relevant soluble mediators as well as proteinases after external radiation.
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Affiliation(s)
- Frank Haubner
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Dominique Muschter
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Fabian Pohl
- Department of Radiotherapy, University Medical Center, Regensburg 93053, Germany.
| | - Stephan Schreml
- Department of Dermatology, University Medical Center, Regensburg 93053, Germany.
| | - Lukas Prantl
- Department of Plastic and Reconstructive Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Holger G Gassner
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
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Behm B, Kemper M, Babilas P, Abels C, Schreml S. Impact of a Glycolic Acid-Containing pH 4 Water-in-Oil Emulsion on Skin pH. Skin Pharmacol Physiol 2015; 28:290-5. [DOI: 10.1159/000439030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 07/28/2015] [Indexed: 11/19/2022]
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Gantner S, Hohenleutner U, Schreml S. Therapie der nodulären Amyloidose mittels Kürettage: Ein Fallbericht. Akt Dermatol 2015. [DOI: 10.1055/s-0035-1558617] [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: 10/23/2022]
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