Veit Krenn, Lara Blümke, Marc Thomsen, Daniel Klüß
{"title":"[Pathologies of joint endoprostheses : Histopathological diagnostics for endoprosthetic centers].","authors":"Veit Krenn, Lara Blümke, Marc Thomsen, Daniel Klüß","doi":"10.1007/s00292-024-01410-w","DOIUrl":"https://doi.org/10.1007/s00292-024-01410-w","url":null,"abstract":"<p><p>Joint endoprosthetics is one of the most successful surgical-orthopedic procedures worldwide, enabling pain reduction and complete restoration of mobility. In the Federal Republic of Germany, around 400,000 joint endoprostheses, hip and knee joints are currently implanted every year ( https://www.eprd.de/de ) and around 30,000 replacement operations or revisions are carried out. Although there is constant optimization in the various technical and medical sectors of material development, construction, antibiotic therapy strategies, and surgical methodology of surgical joint replacement, factors that reduce service life and a variety of prosthesis-associated pathologies still exist. For implant revisions, the SLIM consensus classification, which is internationally accepted in the scientific literature, should be applied. The revised version of the SLIM consensus classification defines a comprehensive etiological spectrum of local joint endoprosthesis-associated pathologies histopathologically using nine types. In addition, this includes particle characterization and differentiation from endogenous particles. The analysis of the removed explant is the task of technical disciplines. Their mechanical and physical tests can provide information on the cause of the damage. For example, an examination of the fracture surface can determine whether the fracture occurred over a longer period of time (fatigue fracture, sustained fracture) or whether it occurred suddenly (forced fracture). It is therefore important to note that this diagnosis is carried out in an interdisciplinary manner, particularly in the context of peri-implant, mostly bacterial infections, and in the case of primarily functional and material-related causes. This interdisciplinary approach is particularly necessary for complex endoprosthesis pathologies, which require precise causal and technology-based damage analysis. In addition to histopathology, definitive diagnosis is only possible in a clinical-orthopedic, microbiological, laboratory medicine-related, radiological, nuclear medicine-related, material-technical and, in particular, biomechanical-technical context.</p>","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143069935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Argyris Papantonis, Stephan Rogalla, Christian Dullin, Frauke Alves, Hanibal Bohnenberger
{"title":"[New methods at the transition from research to routine diagnostics].","authors":"Argyris Papantonis, Stephan Rogalla, Christian Dullin, Frauke Alves, Hanibal Bohnenberger","doi":"10.1007/s00292-024-01412-8","DOIUrl":"https://doi.org/10.1007/s00292-024-01412-8","url":null,"abstract":"<p><strong>Background: </strong>Pathology, traditionally focused on classification and diagnosis, is continuously evolving through new technologies. Advances in proteomics, epigenetics, tissue staining, and 3D imaging expand the possibilities of classical morphology.</p><p><strong>Aim of the study: </strong>The aim of this study was to investigate how modern technologies can improve diagnostic accuracy and therapy selection and how they can be integrated into pathologic routine diagnostics.</p><p><strong>Materials and methods: </strong>Recent studies in proteomics, epigenetics, multiplex tissue staining, and 3D tissue imaging were analyzed to assess their application and the challenges of clinical implementation.</p><p><strong>Results: </strong>The analysis shows significant potential for pathologic diagnostics. Proteomics provides a deeper understanding of the molecular architecture of tumors, while epigenetics and 3D genome architecture offer new insights into genetic regulation and tumor heterogeneity. Multiplex tissue staining and 3D tissue imaging improve spatial tissue analysis.</p><p><strong>Discussion: </strong>Despite the potential to improve diagnostics, high costs, technical complexity, and lack of standardization hinder integration into clinical practice. Nevertheless, these technologies offer promising approaches for optimizing diagnostics and therapy selection. Research and interdisciplinary collaboration are crucial to successfully integrating these innovations into routine clinical practice.</p>","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143017530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bianca Grosser, Nic G Reitsam, Przmyslaw Grochowski, Lukas Rentschler, Johanna Enke, Bruno Märkl
{"title":"[SARIFA-a new multi-entity biomarker].","authors":"Bianca Grosser, Nic G Reitsam, Przmyslaw Grochowski, Lukas Rentschler, Johanna Enke, Bruno Märkl","doi":"10.1007/s00292-024-01368-9","DOIUrl":"10.1007/s00292-024-01368-9","url":null,"abstract":"<p><p>A stroma a‑reactive invasion front area (SARIFA) is a new prognostic biomarker in carcinomas. Essentially, SARIFA describes the occurrence of direct contact between at least five tumor cells and adipocytes. This phenomenon is extremely easy and quick to identify, shows an extremely low interobserver variability, and does not require any additional staining as it can be identified on standard HE sections. The prognostic efficiency has now been demonstrated in gastric, colorectal, pancreatic, and prostate carcinoma.</p>","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":"397-403"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142373735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subtyping of pancreatic neuroendocrine tumors by transcription factors, hormones, histology, and patient outcome.","authors":"Elisa Moser, Ayako Ura, Günter Klöppel, Atsuko Kasajima","doi":"10.1007/s00292-024-01367-w","DOIUrl":"10.1007/s00292-024-01367-w","url":null,"abstract":"<p><strong>Background: </strong>Pancreatic neuroendocrine tumors (PanNETs) show pronounced heterogeneity in terms of hormone and transcription factor (TF) expression. TFs such as ARX and PDX1 are related to alpha- and beta-cell-type features, respectively, and partly associate with patient outcome. However, detailed studies correlating hormone expression, histology, and clinical data are lacking.</p><p><strong>Objective: </strong>The aim of this study was to identify subtypes of PanNETs that associate with histological, hormonal, and prognostic findings.</p><p><strong>Methods: </strong>A total of 185 resected PanNETs were divided into five subtypes (types A1, A2, B, C, and D) by cluster analysis based on expression of four TFs (ARX, PDX1, ISL1, and CDX2) and correlated to the expression of hormones and DAXX/ATRX as well as ALT activation status, histology, and progression-free survival.</p><p><strong>Results: </strong>Subgroup A1 (ISL1+/ARX+/PDX-/CDX2-) was most frequent (46%), followed by type B (18%; ISL1+/ARX-/PDX+/CDX2-), A2 (15%; ISL1+/ARX+/PDX+/CDX2-), C (15%; ISL1-/ARX-/PDX-/CDX2-), and D (5%; ISL1-/ARX-/PDX+/CDX2+). Subgroups A1 and A2 showed a strong association with a trabecular growth pattern and glucagon and pancreatic polypeptide (PP) expression (p < 0.001), while A2 was in addition associated with gastrin expression. Subgroup B was associated with insulin production (p < 0.001) and included all 17 insulinomas. Subgroup C was associated with solid morphology and expression of serotonin, calcitonin, and adrenocorticotropic hormone (ACTH). Subgroup D showed solid morphology, expression of ACTH, somatostatin, or serotonin and had the shortest disease-free survival (p < 0.01). ALT positivity was associated with poorer outcome in types A1 and A2 but not in other types.</p><p><strong>Conclusion: </strong>PanNETs can be categorized into five subgroups based on different TF signatures, which associate strongly with histology, hormone production, functionality, and patient outcome.</p>","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":"20-25"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142395801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Report of the Young Pathology Working Group of the German Society for Pathology].","authors":"Stefanie Bobe, Philipp Jurmeister","doi":"10.1007/s00292-024-01376-9","DOIUrl":"10.1007/s00292-024-01376-9","url":null,"abstract":"","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":"107"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Report of the German Society for Pathology Cytopathology Working Group].","authors":"Dietmar Schmidt","doi":"10.1007/s00292-024-01379-6","DOIUrl":"10.1007/s00292-024-01379-6","url":null,"abstract":"","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":"123-124"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Leveraging homologous recombination deficiency for sarcoma : Unravelling homologous recombination repair deficiency and therapeutic opportunities in soft tissue and bone sarcoma.","authors":"Lara Planas-Paz, Chantal Pauli","doi":"10.1007/s00292-024-01381-y","DOIUrl":"10.1007/s00292-024-01381-y","url":null,"abstract":"<p><strong>Background: </strong>Homologous recombination deficiency (HRD) in tumors correlates with poor prognosis and metastases development. Determining HRD is of major clinical relevance as it can be treated with PARP inhibitors (PARPi). HRD remains poorly investigated in sarcoma, a rare and heterogeneous cancer of mesenchymal origin.</p><p><strong>Objective: </strong>We aimed (i) to investigate predictive biomarkers of HRD in several independent sarcoma cohorts using a cross-functional strategy by combining genomic, transcriptomic and phenotypic approaches and (ii) to evaluate the therapeutic potential of PARPi and DNA damage response (DDR)-based therapies ex vivo.</p><p><strong>Materials and methods: </strong>We performed a comprehensive genomic and transcriptomic characterization of sarcoma using datasets from The Cancer Genome Atlas (TCGA) and Therapeutically Applicable Research to Generate Effective Treatments (TARGET), and our own bone and soft tissue sarcoma cohorts. We evaluated PARP1/2 and WEE1 inhibition ex vivo in patient-derived sarcoma cell models as monotherapy and in combination with chemotherapeutic agents to identify synergistic effects.</p><p><strong>Results: </strong>Firstly, we identified genomic traits of HRD in a subset of sarcomas associated with molecular alterations in homologous recombination repair (HRR) pathway genes and high chromosomal instability. Secondly, we identified and validated distinct SARC-HRD transcriptional signatures that predicted sensitivity to PARPi. Finally, we showed functional defects in HRR in sarcoma cells that were associated with functional dependency towards PARPi and WEE1i and support the clinical use of RAD51 as a predictive biomarker for PARPi sensitivity.</p><p><strong>Conclusion: </strong>We provide a personalized oncological approach to potentially improve the treatment of sarcoma patients. We encourage the evaluation of gene expression signatures to enhance the identification of patients who might benefit from DDR-based therapies.</p>","PeriodicalId":74402,"journal":{"name":"Pathologie (Heidelberg, Germany)","volume":" ","pages":"14-19"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11695455/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}