@article{WagnerDrouetTeschnerWolschkeetal.2021, author = {Wagner-Drouet, Eva and Teschner, Daniel and Wolschke, Christine and Sch{\"a}fer-Eckart, Kerstin and G{\"a}rtner, Johannes and Mielke, Stephan and Schreder, Martin and Kobbe, Guido and Hilgendorf, Inken and Klein, Stefan and Verbeek, Mareike and Ditschkowski, Markus and Koch, Martina and Lindemann, Monika and Schmidt, Traudel and Rascle, Anne and Barabas, Sascha and Deml, Ludwig and Wagner, Ralf and Wolff, Daniel}, title = {Comparison of cytomegalovirus-specific immune cell response to proteins versus peptides using an IFN-γ ELISpot assay after hematopoietic stem cell transplantation}, series = {Diagnostics}, volume = {11}, journal = {Diagnostics}, number = {2}, issn = {2075-4418}, doi = {10.3390/diagnostics11020312}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228843}, year = {2021}, abstract = {Cytomegalovirus (CMV) infection is a major cause of morbidity and mortality following hematopoietic stem cell transplantation (HSCT). Measuring CMV-specific cellular immunity may improve the risk stratification and management of patients. IFN-γ ELISpot assays, based on the stimulation of peripheral blood mononuclear cells with CMV pp65 and IE-1 proteins or peptides, have been validated in clinical settings. However, it remains unclear to which extend the T-cell response to synthetic peptides reflect that mediated by full-length proteins processed by antigen-presenting cells. We compared the stimulating ability of pp65 and IE-1 proteins and corresponding overlapping peptides in 16 HSCT recipients using a standardized IFN-γ ELISpot assay. Paired qualitative test results showed an overall 74.4\% concordance. Discordant results were mainly due to low-response tests, with one exception. One patient with early CMV reactivation and graft-versus-host disease, sustained CMV DNAemia and high CD8\(^+\) counts showed successive negative protein-based ELISpot results but a high and sustained response to IE-1 peptides. Our results suggest that the response to exogenous proteins, which involves their uptake and processing by antigen-presenting cells, more closely reflects the physiological response to CMV infection, while the response to exogenous peptides may lead to artificial in vitro T-cell responses, especially in strongly immunosuppressed patients.}, language = {en} } @article{MaternKochPetersmannetal.2020, author = {Matern, Johannes and Koch, Raphael and Petersmann, Astrid and Kocher, Thomas and Eickholz, Peter and Lorenz, Katrin and Kim, Ti-Sun and Meyle, J{\"o}rg and Kaner, Doğan and Schlagenhauf, Ulrich and Gravemeier, Martina and Harks, Inga and Ehmke, Benjamin}, title = {Effect of periodontal therapy on adipokine biomarkers in overweight}, series = {Journal of Clinical Periodontology}, volume = {47}, journal = {Journal of Clinical Periodontology}, number = {7}, doi = {10.1111/jcpe.13288}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-215546}, pages = {842 -- 850}, year = {2020}, abstract = {Aim The aim of this study was to evaluate the effect of non-surgical periodontal therapy on circulating levels of the systemic inflammation-associated biomarkers orosomucoid (ORM), high-sensitivity C-reactive protein (hsCRP), chemerin, and retinol-binding protein 4 (RBP4) in overweight or normal-weight patients with periodontitis at 27.5 months after therapy. Materials and methods This exploratory subanalysis includes patients from the ABPARO-trial (ClinicalTrials.gov NCT00707369). The per-protocol collective provided untreated periodontitis patients with high (≥28 kg/m\(^{2}\)) or moderate (21-24 kg/m\(^{2}\)) BMI. Out of the per-protocol collective, 80 patients were randomly selected and stratified for BMI group, sex, and treatment group (antibiotics/placebo), resulting in 40 overweight and normal-weight patients. Patients received non-surgical periodontal therapy and maintenance at 3-month intervals. Plasma samples from baseline and 27.5 months following initial treatment were used to measure the concentrations of ORM, hsCRP, chemerin, and RBP4. Results At the 27.5-month examination, ORM and hsCRP decreased noticeably in the overweight group (ORM: p = .001, hsCRP: p = .004) and normal-weight patients (ORM: p = .007, hsCRP: p < .001). Chemerin decreased in the overweight group (p = .048), and RBP4 concentrations remained stable. Conclusion Non-surgical periodontal therapy reduced systemically elevated inflammation-associated biomarkers in periodontitis patients. These improvements were more pronounced in overweight patients than in normal-weight patients.}, language = {en} }