Alexander Thiem

ORCID: 0000-0001-9504-4281
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About
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Research Areas
  • Cutaneous Melanoma Detection and Management
  • Nonmelanoma Skin Cancer Studies
  • Melanoma and MAPK Pathways
  • Cancer Immunotherapy and Biomarkers
  • Dermatologic Treatments and Research
  • Cardiac and Coronary Surgery Techniques
  • Dermatology and Skin Diseases
  • Infective Endocarditis Diagnosis and Management
  • AI in cancer detection
  • Cardiac, Anesthesia and Surgical Outcomes
  • Immunotherapy and Immune Responses
  • Cardiac Valve Diseases and Treatments
  • CAR-T cell therapy research
  • Wound Healing and Treatments
  • Polyomavirus and related diseases
  • Psoriasis: Treatment and Pathogenesis
  • Medical and Health Sciences Research
  • Acne and Rosacea Treatments and Effects
  • Aortic Disease and Treatment Approaches
  • Atrial Fibrillation Management and Outcomes
  • Autoimmune Bullous Skin Diseases
  • Ocular Oncology and Treatments
  • Asthma and respiratory diseases
  • Full-Duplex Wireless Communications
  • Antifungal resistance and susceptibility

University Hospital Schleswig-Holstein
2011-2025

University of Lübeck
2011-2025

University of Rostock
2020-2025

University Medical Center
2025

Heidelberg University
2019-2024

University Hospital Heidelberg
2019-2024

Universitätsmedizin Rostock
2020-2024

Universitätsklinikum Würzburg
2014-2023

Clinical Research Center Kiel
2021

German Marine Research Consortium
2020

Tirtha Chanda Katja Hauser Sarah Hobelsberger Tabea-Clara Bucher Carina Nogueira Garcia and 95 more Christoph Wies Harald Kittler Philipp Tschandl Cristián Navarrete‐Dechent Sebastián Podlipnik Emmanouil Chousakos Iva Crnaric Jovana Majstorovic Linda Alhajwan Tanya Foreman Sandra Peternel Sergei Sarap İrem Özdemir Raymond L. Barnhill Mar Llamas‐Velasco Gabriela Poch Sören Korsing Wiebke Sondermann Frank Friedrich Gellrich Markus V. Heppt Michael Erdmann Sebastian Haferkamp Konstantin Drexler Matthias Goebeler Bastian Schilling Jochen Utikal Kamran Ghoreschi Stefan Fröhling Eva Krieghoff‐Henning Alexander Salava Alexander Thiem Alexandris Dimitrios Amr Mohammad Ammar Ana Sanader Vučemilović Andrea Miyuki Yoshimura Andzelka Ilieva Anja Gesierich Antonia Reimer Antonios G.A. Kolios Arturs Kaļva Arzu Ferhatosmanoğlu Aude Beyens Claudia Pföhler Dilara Ilhan Erdil Dobrila Jovanovic Emöke Rácz Falk G. Bechara Federico Vaccaro Florentia Dimitriou Günel Rasulova Hülya Cenk Irem Yanatma Isabel Kolm Isabelle Hoorens Iskra Petrovska Sheshova Ivana Jocic Jana Knuever Janik Fleißner Janis Thamm Johan Dahlberg Juan José Lluch‐Galcerá Juan Sebastián Andreani Figueroa Julia Holzgruber Julia Welzel Katerina Damevska Kristine Elisabeth Mayer Lara Valeska Maul Laura Garzona-Navas Laura Isabell Bley Laurenz Schmitt Lena Reipen Lidia Shafik Lidija Petrovska Linda Golle Luise Jopen Magda Gogilidze Maria Rosa Burg Martha Alejandra Morales‐Sánchez Martyna Sławińska Miriam Mengoni Miroslav Dragolov N. Iglesias-Pena Nina Booken Nkechi Anne Enechukwu Oana‐Diana Persa Olumayowa Abimbola Oninla Panagiota Theofilogiannakou Paula Kage Roque Rafael Oliveira Neto Rosario Peralta Rym Afiouni Sandra Schuh Saskia Schnabl-Scheu Seçil Vural Sharon Hudson

10.1038/s41467-023-43095-4 article EN cc-by Nature Communications 2024-01-15

Immune checkpoint inhibition and in particular anti-PD-1 immunotherapy have revolutionized the treatment of advanced melanoma. In this regard, higher tumoral PD-L1 protein (gene name: CD274) expression is associated with better clinical response increased survival to therapy. Moreover, there increasing evidence that tumor suppressor proteins are involved immune regulation capable modulating proteins. Here, we determined role p53 TP53) melanoma.We analyzed publicly available mRNA data from...

10.1186/s13046-019-1403-9 article EN cc-by Journal of Experimental & Clinical Cancer Research 2019-09-11

Immune checkpoint blockade therapy is beneficial and even curative for some cancer patients. However, the majority don't respond to immune therapy. Across different tumor types, pre-existing T cell infiltrates predict response checkpoint-based immunotherapy. Based on in vitro pharmacological studies, mouse models analyses of human melanoma patients, we show that cytokine GDF-15 impairs LFA-1/β2-integrin-mediated adhesion cells activated endothelial cells, which a pre-requisite extravasation....

10.1038/s41467-023-39817-3 article EN cc-by Nature Communications 2023-07-20

Programmed death-1 (PD-1) antibodies and BRAF + MEK inhibitors are widely used for adjuvant therapy of fully resected high-risk melanoma. Little is known about treatment efficacy outside phase III trials. This real-world study reports on clinical outcomes modern melanoma in specialized skin cancer centers Germany, Austria Switzerland.Multicenter, retrospective investigating stage III-IV patients receiving nivolumab (NIV), pembrolizumab (PEM) or dabrafenib trametinib (D T) between 1/2017...

10.1111/jdv.18779 article EN Journal of the European Academy of Dermatology and Venereology 2022-11-26

Cold atmospheric plasma (CAP) has positive effects on wound healing and antimicrobial properties. However, an ongoing challenge is the development of specific modes application for different clinical indications.We investigated in a prospective pilot study response tolerability newly developed CAP dressing acute split skin graft donor sites compared to conventional therapy.We applied both treatments each patient (n = 10) 7 days measured 4 parameters every other day (i.e., 1,440 measurements)...

10.1159/000517524 article EN cc-by-nc Skin Pharmacology and Physiology 2021-01-01

<title>Abstract</title> <bold>Background: </bold>Shame is a complex emotion with different facets. Skin shame specific aspect of body shame, which involves the skin perceived as inferior or flawed. Its role in atopic dermatitis (AD) and psoriasis not well investigated. <bold>Objectives: </bold>This explorative study pursued three objectives: First, comparative analysis its facets AD psoriasis. Second, association other facets, depression, anxiety. Third, exploration unique impact on quality...

10.21203/rs.3.rs-5592233/v1 preprint EN Research Square (Research Square) 2025-04-09

Abstract Shame is a complex emotion with different facets. Skin shame specific aspect of body shame, which involves the skin perceived as inferior or flawed. Its role in atopic dermatitis (AD) and psoriasis not well investigated. This explorative study pursued three objectives: First, comparative analysis its facets AD psoriasis. Second, association other facets, depression, anxiety. Third, exploration unique impact on quality life (QoL) patients. cross-sectional online survey encompassing...

10.1038/s41598-025-98353-w article EN cc-by Scientific Reports 2025-04-21

Health-related quality of life (HRQoL) is reduced in atopic dermatitis and psoriasis. Several factors impact HRQoL including sociodemographic skin disease-related characteristics, health behaviours, cardiometabolic comorbidities, psychological conditions. However, their differential unique effects on are not well studied. In this cross-sectional online survey, adult patients with (n = 155) or psoriasis 246) provided data features respective diseases, comorbidities. Validated self-report...

10.2340/actadv.v105.42794 article EN cc-by-nc Acta Dermato Venereologica 2025-05-19

Abstract Background Immune checkpoint inhibitors (ICI) have led to a prolongation of progression-free and overall survival in patients with metastatic Merkel cell carcinoma (MCC). However, immune-mediated adverse events due ICI therapy are common often lead treatment discontinuation. The response duration after cessation is unknown. Hence, this study aimed investigate the time relapse discontinuation MCC patients. Methods We analyzed 20 who been retrospectively enrolled at eleven skin cancer...

10.1007/s00262-021-02925-4 article EN cc-by Cancer Immunology Immunotherapy 2021-04-18

Psoriasis is a common skin disorder with high physical and psychological burden for patients. Up to 30% of the patients are candidates systemic treatment. The aim this study was describe characteristics real-world treatment psoriasis patients.This based on German medical claims data. A cross-sectional analysis observed all in 2020. longitudinal conducted, addressing who newly started treatment.In total, 116,507 prevalent 13,449 treated were followed. Of patients, 15.2% received 2020 (8.7%...

10.1111/ddg.15030 article EN cc-by-nc-nd JDDG Journal der Deutschen Dermatologischen Gesellschaft 2023-04-19

10.1016/j.jaad.2024.04.033 article EN cc-by Journal of the American Academy of Dermatology 2024-04-24

Ziel/Aim: Chronische Infektionen kardialer Implantate sind eine klinische Herausforderung. Bei fehlenden chirurgischen Sanierungsmöglichkeiten bleibt die palliative antibiotische Langzeitsuppression der Infektion einzige Therapieoption. Hierbei stellt i.v.-Applikation des Depotantibiotikums Dalbavancin aufgrund seiner langen Halbwertzeit (ca. 346 h) ein bisher wenig genutztes Potential dar und ermöglicht weitgehend ambulante Therapie für schwerkranke Patienten.

10.1055/s-0045-1804402 article DE Nuklearmedizin - NuclearMedicine 2025-03-01

Abstract Background PD‐1 or BRAF + MEK inhibition is considered the current gold standard in adjuvant melanoma therapy. Little known if, after recurrence of disease and surgery, a second course therapy might be beneficial. Methods A multicenter, retrospective study investigating surgery stage III–IV patients. Patients received nivolumab (NIV), pembrolizumab (PEM) dabrafenib plus trametinib (D T) between 01/2017 10/2021. The primary endpoint was 12‐month recurrence‐free survival (RFS2)....

10.1111/jdv.20708 article EN cc-by Journal of the European Academy of Dermatology and Venereology 2025-05-07

Patient-centered motives and expectations of the treatment actinic keratoses (AK) have received little attention until now. Hence, we aimed to profile cluster motivations among patients with AK in a nationwide multicenter, cross-sectional study including from 14 German skin cancer centers. Patients were asked complete self-administered questionnaire. Treatment towards management measured on visual analogue scale 1-10. Specific patient profiles investigated subgroup correlation analysis....

10.3390/jcm9051438 article EN Journal of Clinical Medicine 2020-05-12

Abstract Introduction Acute aortic dissection Type A (AADA) is still associated with a high mortality rate and frequent postoperative complications. This study was designed to evaluate the risk factors for in AADA patients. Patients Methods retrospective analysis included 344 consecutive patients who underwent surgery moderate hypothermic circulatory arrest (20–24°C nasopharyngeal) between 2001 2016. Results The 30-day 18%. Nonsurvivors were significantly older (65.7 ± 12.0 years vs. 62.0...

10.1055/s-0040-1710002 article EN The Thoracic and Cardiovascular Surgeon 2020-06-19

Increasing knowledge of cancer genomes has triggered the development specific targeted inhibitors, thus providing a valuable therapeutic pool.In this report, authors analyze presence targetable alterations in 136 tumor samples from 92 patients with melanoma using comprehensive approach based on DNA sequencing and supported by RNA protein analysis. Three topics high clinical relevance are addressed: identification rare, activating alterations; detection patient-specific, co-occurring single...

10.1002/cncr.31843 article EN Cancer 2018-12-18

Objective: Growth factor gene therapy represents one current approach in the of myocardial ischemia. We assessed vitro and vivo expression naked plasmid DNA aiming at preservation function a chronically ischemic model. Methods: In vitro: Primary cardiac fibroblasts were transfected with plasmids encoding enhanced green fluorescent protein, human VEGF121, FGF-2, or porcine MCP-1. Protein synthesis was microscopically, by ELISA, Western blotting, intracellular immunofluorescence. vivo: A LAD...

10.1016/s1010-7940(03)00455-x article EN European Journal of Cardio-Thoracic Surgery 2003-10-11

Rosacea is a common, facial, chronic inflammatory skin disease. Due to its complex pathogenesis, adequate therapy of rosacea can be challenging. An innovative recent therapeutic tool cold atmospheric plasma (CAP), which already established in the treatment wounds and promising different other diseases.In split-face pilot study we investigated dielectric-barrier-discharged CAP erythemato-telangiectatic (ETR) and/or papulopustular (PPR). was applied on lesional randomized side once daily (90...

10.1159/000533190 article EN cc-by Skin Pharmacology and Physiology 2023-01-01

Nonmelanoma skin cancer (NMSC) is the most frequent malignancy. Surgical intervention common treatment but may lead to disappointing results; alternative options are needed.In this monocentric pilot study, topical 188Re resin was investigated as a for invasive NMSC up 3-mm thickness. Twenty-two patients with 40 histologically confirmed NMSCs median size of 1.25 cm2 (range, 0.04-16.8 cm2) and tumor thickness 0.35 mm 0.1-2.1 mm) were included. Patients treated once targeted dose 50 Gy. The...

10.1097/rlu.0000000000004824 article EN Clinical Nuclear Medicine 2023-09-08

Most patients with advanced melanomas have a known primary site [melanoma of (MKP)]. However, 2%-9% are diagnosed melanoma metastasis unknown (MUP). As MUP and MKP similar UV-induced mutations molecular signatures, it is proposed that the tumor has regressed completely in MUP. regression could be indicative enhanced recognition antigens, we hypothesize better outcome compared MKP.Patients from 10 German university hospitals were retrospectively analyzed matched based on type systemic...

10.1097/cji.0000000000000537 article EN Journal of Immunotherapy 2024-08-29

Abstract Significant progress has been made in the treatment of advanced Merkel cell carcinoma (MCC) by establishing immune checkpoint inhibitors (ICI). Tumor progression, durable response, or adverse events may lead to ICI discontinuation MCC patients. If these patients tumor progression occurs, question remains if re-induction with achieves renewed response. This retrospective multicenter study evaluated anti-PD-1/anti-PD-L1 therapy for MCC. Clinical data were extracted at initiation,...

10.1007/s42399-020-00488-6 article EN cc-by SN Comprehensive Clinical Medicine 2020-09-04
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