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Olkhov-Mitsel E, Oberc A, Craddock KJ, Sherman C, Slodkowska E, Downes MR. MTAP protein status is highly concordant with CDKN2A fluorescent in situ hybridization and allows stratification of the luminal subtype in muscle-invasive bladder cancer. Histopathology 2024. [PMID: 39327852 DOI: 10.1111/his.15324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/30/2024] [Accepted: 09/08/2024] [Indexed: 09/28/2024]
Abstract
AIMS Loss of heterozygosity in chromosome 9p21, common in urothelial carcinoma (UC), typically involves deletion of CDKN2A and MTAP genes. MTAP loss is emerging as a promising therapeutic target and predictive biomarker in UC. This single-centrre retrospective study examined the incidence of CDKN2A deletions and MTAP loss in muscle-invasive bladder cancer (MIBC) and metastatic urothelial carcinoma (mUC), investigating their correlations with clinical, pathological, and genomic features, as well as patient outcomes. METHODS Fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) were performed on 302 MIBC specimens and 63 biopsy-proven metachronous urothelial metastases to assess CDKN2A deletions and MTAP protein expression. RESULTS CDKN2A homozygous deletion (HD), identified in 30.3% of MIBCs, and MTAP loss, found in 28.8% of MIBCs, were both significantly associated with the luminal-URO subtype, FGFR3 mutations, and normal/wildtype p53 IHC (P < 0.05). Loss of MTAP expression was significantly correlated with CDKN2A HD, with 84.0% sensitivity, 92.3% negative predictive value (NPV), 96.3% specificity, and 91.9% positive predictive value (PPV). MTAP expression was 100% concordant between primary tumours and nodal metastases. Patients with MTAP loss had a higher incidence of visceral metastases (50%) compared to bone/soft tissue (35.7%) and nodes (14.3%). Mean progression-free survival and overall survival were shorter for patients with MTAP loss, although not statistically significant. CONCLUSION Our findings highlight CDKN2A HD and MTAP loss as prevalent genetic alterations in MIBC and mUC, particularly within the luminal-URO subtype and FGFR3-mutated, p53-normal/wildtype tumours. MTAP IHC can serve as a surrogate marker for 9p21.3 HD, highlighting its clinical relevance and potential as a therapeutic target and predictive biomarker in MIBC.
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Affiliation(s)
- Ekaterina Olkhov-Mitsel
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Alexander Oberc
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Kenneth J Craddock
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Christopher Sherman
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Elzbieta Slodkowska
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Michelle R Downes
- Division of Anatomic Pathology, Department of Laboratory Medicine and Molecular Diagnostics, Precision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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Onishi S, Kojima M, Yamasaki F, Amatya VJ, Yonezawa U, Taguchi A, Ozono I, Go Y, Takeshima Y, Hiyama E, Horie N. T2-FLAIR mismatch sign, an imaging biomarker for CDKN2A-intact in non-enhancing astrocytoma, IDH-mutant. Neurosurg Rev 2024; 47:412. [PMID: 39117984 PMCID: PMC11310237 DOI: 10.1007/s10143-024-02632-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 07/09/2024] [Accepted: 07/29/2024] [Indexed: 08/10/2024]
Abstract
INTRODUCTION The WHO classification of central nervous system tumors (5th edition) classified astrocytoma, IDH-mutant accompanied with CDKN2A/B homozygous deletion as WHO grade 4. Loss of immunohistochemical (IHC) staining for methylthioadenosine phosphorylase (MTAP) was developed as a surrogate marker for CDKN2A-HD. Identification of imaging biomarkers for CDKN2A status is of immense clinical relevance. In this study, we explored the association between radiological characteristics of non-enhancing astrocytoma, IDH-mutant to the CDKN2A/B status. METHODS Thirty-one cases of astrocytoma, IDH-mutant with MTAP results by IHC were included in this study. The status of CDKN2A was diagnosed by IHC staining for MTAP in all cases, which was further confirmed by comprehensive genomic analysis in 12 cases. The T2-FLAIR mismatch sign, cystic component, calcification, and intratumoral microbleeding were evaluated. The relationship between the radiological features and molecular pathological diagnosis was analyzed. RESULTS Twenty-six cases were identified as CDKN2A-intact while 5 cases were CDKN2A-HD. The presence of > 33% and > 50% T2-FLAIR mismatch was observed in 23 cases (74.2%) and 14 cases (45.2%), respectively, and was associated with CDKN2A-intact astrocytoma (p = 0.0001, 0.0482). None of the astrocytoma, IDH-mutant with CDKN2A-HD showed T2-FLAIR mismatch sign. Cystic component, calcification, and intratumoral microbleeding were not associated with CDKN2A status. CONCLUSION In patients with non-enhancing astrocytoma, IDH-mutant, the T2-FLAIR mismatch sign is a potential imaging biomarker for the CDKN2A-intact subtype. This imaging biomarker may enable preoperative prediction of CDKN2A status among astrocytoma, IDH-mutant.
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Affiliation(s)
- Shumpei Onishi
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan
| | - Masato Kojima
- Department of Pediatric Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Natural Science Center for Basic Research and Development, Hiroshima University, Hiroshima, Japan
| | - Fumiyuki Yamasaki
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan.
| | - Vishwa Jeet Amatya
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ushio Yonezawa
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan
| | - Akira Taguchi
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan
| | - Iori Ozono
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan
| | - Yukari Go
- Medical Division Technical Center, Hiroshima University, Hiroshima, Japan
| | - Yukio Takeshima
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Eiso Hiyama
- Department of Pediatric Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Natural Science Center for Basic Research and Development, Hiroshima University, Hiroshima, Japan
| | - Nobutaka Horie
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Hiroshima, Japan
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Ma X, Lembersky D, Kim ES, Becich MJ, Testa JR, Bruno TC, Osmanbeyoglu HU. Spatial Landscape of Malignant Pleural and Peritoneal Mesothelioma Tumor Immune Microenvironments. CANCER RESEARCH COMMUNICATIONS 2024; 4:2133-2146. [PMID: 38994676 PMCID: PMC11328914 DOI: 10.1158/2767-9764.crc-23-0524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 04/15/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Immunotherapies have demonstrated limited clinical efficacy in malignant mesothelioma treatment. We conducted multiplex immunofluorescence analyses on tissue microarrays (n = 3) from patients with malignant pleural mesothelioma (MPM, n = 88) and malignant peritoneal mesothelioma (MPeM, n = 25). Our study aimed to elucidate spatial distributions of key immune cell populations and their association with lymphocyte activation gene 3 (LAG3), BRCA1-associated protein 1 (BAP1), neurofibromatosis type 2 (NF2), and methylthioadenosine phosphorylase (MTAP), with MTAP serving as a cyclin-dependent kinase inhibitor 2A/2B (CDKN2A/B) surrogate marker. Additionally, we examined the relationship between the spatial distribution of major immune cell types and prognosis and clinical characteristics of patients with malignant mesothelioma. We observed a higher degree of interaction between immune cells and tumor cells in MPM compared with MPeM. Notably, within MPM tumors, we detected a significantly increased interaction between tumor cells and CD8+ T cells in tumors with low BAP1 expression compared with those with high BAP1 expression. To support the broader research community, we have developed The Human Spatial Atlas of Malignant Mesothelioma, containing hematoxylin and eosin and multiplex immunofluorescence images with corresponding metadata. SIGNIFICANCE Considering the limited therapeutic options available to patients with malignant mesothelioma, there is substantial translational potential in understanding the correlation between the spatial architecture of the malignant mesothelioma tumor immune microenvironment and tumor biology. Our investigation reveals critical cell-cell interactions that may influence the immune response against malignant mesothelioma tumors, potentially contributing to the differential behaviors observed in MPM and MPeM. These findings represent a valuable resource for the malignant mesothelioma cancer research community.
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Affiliation(s)
- Xiaojun Ma
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - David Lembersky
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Elena S Kim
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Michael J Becich
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Joseph R Testa
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Tullia C Bruno
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Hatice U Osmanbeyoglu
- UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Bioengineering, University of Pittsburgh School of Engineering, Pittsburgh, Pennsylvania
- Department of Biostatistics, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania
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Weber-Levine C, Rakovec M, Jiang K, Kalluri A, Raj D, Parker M, Materi J, Sepehri S, Ferrés A, Schreck KC, Aldecoa I, Lucas CHG, Redmond KJ, Holdhoff M, Sair HI, Weingart JD, Brem H, González Sánchez J, Ye X, Bettegowda C, Rincon-Torroella J. Genomic Alterations in Molecularly Defined Oligodendrogliomas. Neurosurgery 2024:00006123-990000000-01284. [PMID: 39007559 DOI: 10.1227/neu.0000000000003078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/26/2024] [Indexed: 07/16/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Oligodendrogliomas are defined by IDH1/2 mutation and codeletion of chromosome arms 1p/19q. Although previous studies identified CIC, FUBP1, and TERTp as frequently altered in oligodendrogliomas, the clinical relevance of these molecular signatures is unclear. Moreover, previous studies predominantly used research panels that are not readily available to providers and patients. Accordingly, we explore genomic alterations in molecularly defined oligodendrogliomas using clinically standardized next-generation sequencing (NGS) panels. METHODS A retrospective single-center study evaluated adults with pathologically confirmed IDH-mutant, 1p/19q-codeleted oligodendrogliomas diagnosed between 2005 and 2021. Genetic data from formalin-fixed, paraffin-embedded specimens were analyzed with the NGS Solid Tumor Panel at the Johns Hopkins Medical Laboratories, which tests more than 400 cancer-related genes. Kaplan-Meier plots and log-rank tests compared progression-free survival (PFS) and overall survival by variant status. χ2 tests, t-tests, and Wilcoxon rank-sum tests were used to compare clinical characteristics between genomic variant status in the 10 most frequently altered genes. RESULTS Two hundred and seventy-seven patients with molecularly defined oligodendrogliomas were identified, of which 95 patients had available NGS reports. Ten genes had 9 or more patients with a genomic alteration, with CIC, FUBP1, and TERTp being the most frequently altered genes (n = 60, 23, and 22, respectively). Kaplan-Meier curves showed that most genes were not associated with differences in PFS or overall survival. At earlier time points (PFS <100 months), CIC alterations conferred a reduction in PFS in patients (P = .038). CONCLUSION Our study confirms the elevated frequency of CIC, FUBP1, and TERTp alterations in molecularly defined oligodendrogliomas and suggests a potential relationship of CIC alteration to PFS at earlier time points. Understanding these genomic variants may inform prognosis or therapeutic recommendations as NGS becomes routine.
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Affiliation(s)
- Carly Weber-Levine
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Maureen Rakovec
- Department of Neurosurgery, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Kelly Jiang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Anita Kalluri
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Divyaansh Raj
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Megan Parker
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joshua Materi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sadra Sepehri
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Abel Ferrés
- Department of Neurosurgery, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Karisa C Schreck
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Iban Aldecoa
- Department of Pathology, Biomedical Diagnostic Center (CDB), Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
- Neurological Tissue Bank of the Biobank Hospital Clinic Barcelona-FCRB/IDIBAPS, Barcelona, Spain
| | - Calixto-Hope G Lucas
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kristin J Redmond
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Matthias Holdhoff
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Haris I Sair
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Malone Center for Engineering in Healthcare, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jon D Weingart
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Henry Brem
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Josep González Sánchez
- Department of Neurosurgery, Hospital Clínic de Barcelona, Barcelona, Spain
- Laboratory of Experimental Oncological Neurosurgery, Neurosurgery Service, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Xiaobu Ye
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Chetan Bettegowda
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jordina Rincon-Torroella
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Laboratory of Experimental Oncological Neurosurgery, Neurosurgery Service, Hospital Clinic de Barcelona, Barcelona, Spain
- Programa de Doctorat de Medicina i Recerca Translacional, Universitat de Barcelona, Barcelona, Spain
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Costa A, Forte IM, Pentimalli F, Iannuzzi CA, Alfano L, Capone F, Camerlingo R, Calabrese A, von Arx C, Benot Dominguez R, Quintiliani M, De Laurentiis M, Morrione A, Giordano A. Pharmacological inhibition of CDK4/6 impairs diffuse pleural mesothelioma 3D spheroid growth and reduces viability of cisplatin-resistant cells. Front Oncol 2024; 14:1418951. [PMID: 39011477 PMCID: PMC11246887 DOI: 10.3389/fonc.2024.1418951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/11/2024] [Indexed: 07/17/2024] Open
Abstract
Introduction Diffuse pleural mesothelioma (DPM) of the pleura is a highly aggressive and treatment-resistant cancer linked to asbestos exposure. Despite multimodal treatment, the prognosis for DPM patients remains very poor, with an average survival of 2 years from diagnosis. Cisplatin, a platinum-based chemotherapy drug, is commonly used in the treatment of DPM. However, the development of resistance to cisplatin significantly limits its effectiveness, highlighting the urgent need for alternative therapeutic strategies. New selective inhibitors of cyclin-dependent kinases 4 and 6 (CDK4/6) have shown promise in various malignancies by inhibiting cell cycle progression and suppressing tumor growth. Recent studies have indicated the potential of abemaciclib for DPM therapy, and a phase II clinical trial has shown preliminary encouraging results. Methods Here, we tested abemaciclib, palbociclib, and ribociclib on a panel of DPM cell lines and non-tumor mesothelial(MET-5A) cells. Results Specifically, we focused on abemaciclib, which was the mosteffective cytotoxic agent on all the DPM cell lines tested. Abemaciclib reduced DPM cell viability, clonogenic potential, and ability to grow as three-dimensional (3D) spheroids. In addition, abemaciclib induced prolonged effects, thereby impairing second-generation sphere formation and inducing G0/G1 arrest and apoptosis/ necrosis. Interestingly, single silencing of RB family members did not impair cell response to abemaciclib, suggesting that they likely complement each other in triggering abemaciclib's cytostatic effect. Interestingly, abemaciclib reduced the phosphorylation of AKT, which is hyperactive in DPM and synergized with the pharmacological AKT inhibitor (AKTi VIII). Abemaciclib also synergized with cisplatin and reduced the viability of DPM cells with acquired resistance to cisplatin. Discussion Overall, our results suggest that CDK4/6 inhibitors alone or in combination with standard of care should be further explored for DPM therapy.
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Affiliation(s)
- Aurora Costa
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Iris Maria Forte
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Francesca Pentimalli
- Department of Medicine and Surgery, LUM University "Giuseppe De Gennaro", Bari, Italy
| | - Carmelina Antonella Iannuzzi
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Luigi Alfano
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Francesca Capone
- Experimental Pharmacology Unit-Laboratories of Naples andMercogliano (AV), Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Rosa Camerlingo
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Alessandra Calabrese
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Claudia von Arx
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Reyes Benot Dominguez
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | | | - Michelino De Laurentiis
- Experimental ClinicalOncology of Breast Unit, Department of Breast and Thoracic Oncology, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Andrea Morrione
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Antonio Giordano
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA, United States
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Broggi G, Massimino M, Failla M, Filetti V, Rapisarda V, Ledda C, Lombardo C, Loreto C, Vigneri P, Caltabiano R. Concordance between CDKN2A homozygous deletion and MTAP immunohistochemical loss in fluoroedenite-induced pleural mesothelioma: An immunohistochemical and molecular study on a single-institution series. Pathol Res Pract 2024; 259:155350. [PMID: 38781764 DOI: 10.1016/j.prp.2024.155350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/14/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Fluoroedenite-induced pleural mesothelioma (FE-induced-PM) is a rare and small subset of PM that shares with its asbestos-induced counterpart the same aggressive biological behavior and poor prognosis, but that differs from it from a pathogenetic point of view as it is associated with exposure to fluoroedenite, a carcinogenic agent that shows similarities with tremolite amphibolic asbestos fibers. Although it has been demonstrated that asbestos-induced PMs frequently harbor CDKN2A homozygous deletion and that the immunohistochemical loss of MTAP may represent a cheap and reliable surrogate marker for this molecular alteration, little is known about the molecular landscape and the reliability of MTAP immunohistochemistry in this peculiar subset of PM. The study herein presented investigated the prevalence of CDKN2A homozygous deletion and its concordance with MTAP immunohistochemical status on a cohort of 10 cases of FE-induced-PM from patients with environmental exposure to FE fibers, who were residents in the small town of Biancavilla (Sicily, Italy) or nearby areas. CDKN2A homozygous deletions were found in 3 out of 10 cases (30%) and all these cases showed concomitant cytoplasmic loss of MTAP with a concordance rate of 100%. Despite the relatively low number of cases included in our series, MTAP immunohistochemistry seemed to represent a reliable immunohistochemical surrogate marker of CDKNA homozygous deletion even in this subset of PMs.
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Affiliation(s)
- Giuseppe Broggi
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Anatomic Pathology, University of Catania, Catania 95123, Italy.
| | - Michele Massimino
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy; Center of Experimental Oncology and Hematology, A.O.U. Policlinico "G. Rodolico-S. Marco", Catania, Italy
| | - Maria Failla
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Anatomic Pathology, University of Catania, Catania 95123, Italy
| | - Veronica Filetti
- Department of Clinical and Experimental Medicine, Section of Occupational Medicine, University of Catania, Catania, Italy
| | - Venerando Rapisarda
- Department of Clinical and Experimental Medicine, Section of Occupational Medicine, University of Catania, Catania, Italy
| | - Caterina Ledda
- Department of Clinical and Experimental Medicine, Section of Occupational Medicine, University of Catania, Catania, Italy
| | - Claudia Lombardo
- Human Anatomy and Histology, Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Catania, Italy
| | - Carla Loreto
- Human Anatomy and Histology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Paolo Vigneri
- Medical Oncology Unit, Humanitas istituto Clinico Catanese, Catania, Italy; Department of Clinical and Experimental Medicine, University of Catania, Catania 95123, Italy
| | - Rosario Caltabiano
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Anatomic Pathology, University of Catania, Catania 95123, Italy
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7
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Sasaki M, Sato Y, Nakanuma Y. Expression of fibroblast growth factor receptor 2 (FGFR2) in combined hepatocellular-cholangiocarcinoma and intrahepatic cholangiocarcinoma: clinicopathological study. Virchows Arch 2024; 484:915-923. [PMID: 38532197 PMCID: PMC11186861 DOI: 10.1007/s00428-024-03792-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
Genetic alterations including fusions in fibroblast growth factor receptor 2 (FGFR2) are detected in 10-20% of intrahepatic cholangiocarcinoma (iCCA), and FGFR2 inhibitors are effective for the treatment of iCCA. We examined a prevalence of FGFR2 genetic alterations and their clinicopathological significance in combined hepatocellular-cholangiocarcinoma (cHCC-CCA). FGFR2 expression, which is a surrogate marker for FGFR2 genetic alterations, was immunohistochemically assessed in the liver sections from 75 patients with cHCC-CCA, 35 with small duct-type iCCA, 30 with large duct-type iCCA, and 35 with hepatocellular carcinoma (HCC). FGFR2 genetic alterations were detected by reverse transcription-PCR and direct sequence. An association of FGFR2 expression with clinicopathological features was investigated in cHCC-CCAs. FGFR2 expression was detected in significantly more patients with cHCC-CCA (21.3%) and small duct-type iCCA (25.7%), compared to those with large duct-type iCCA (3.3%) and HCC (0%) (p < 0.05). FGFR2-positive cHCC-CCAs were significantly smaller size (p < 0.05), with more predominant cholangiolocarcinoma component (p < 0.01) and less nestin expression (p < 0.05). Genetic alterations of ARID1A and BAP1 and multiple genes were significantly more frequent in FGFR2-positive cHCC-CCAs (p < 0.05). 5'/3' imbalance in FGFR2 genes indicating exon18-truncated FGFR2 was significantly more frequently detected in FGFR2-positive cHCC-CCAs and small duct iCCAs, compared to FGFR2-negative ones (p < 0.05). FGFR2::BICC fusion was detected in a case of cHCC-CCAs. FGFR2 genetic alterations may be prevalent in cHCC-CCAs as well as small duct-type iCCAs, which suggest cHCC-CCAs may also be a possible therapeutic target of FGFR2 inhibitors.
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MESH Headings
- Humans
- Cholangiocarcinoma/pathology
- Cholangiocarcinoma/genetics
- Cholangiocarcinoma/metabolism
- Receptor, Fibroblast Growth Factor, Type 2/genetics
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Female
- Male
- Bile Duct Neoplasms/pathology
- Bile Duct Neoplasms/genetics
- Bile Duct Neoplasms/metabolism
- Middle Aged
- Liver Neoplasms/pathology
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Aged
- Adult
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/metabolism
- Aged, 80 and over
- Immunohistochemistry
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
- Ubiquitin Thiolesterase
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Affiliation(s)
- Motoko Sasaki
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, 920-8640, Japan.
| | - Yasunori Sato
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, 920-8640, Japan
| | - Yasuni Nakanuma
- Division of Pathology, Fukui Saiseikai Hospital, Fukui, Japan
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8
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Yamamura T, Tamura K, Kobayashi D, Inaji M, Toyama Y, Wakimoto H, Kiyokawa J, Hara S, Tanaka Y, Nariai T, Shimizu K, Ishii K, Maehara T. Loss of methylthioadenosine phosphorylase immunoreactivity correlates with poor prognosis and elevated uptake of 11C-methionine in IDH-mutant astrocytoma. J Neurooncol 2024; 168:355-365. [PMID: 38557927 DOI: 10.1007/s11060-024-04661-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
PURPOSE The proximate localization of MTAP, which encodes methylthioadenosine phosphorylase, and CDKN2A/B on Chromosome 9q21 has allowed the loss of MTAP expression as a surrogate for homozygous deletion of CDKN2A/B. This study aimed to determine whether MTAP status correlates with clinical outcomes and 11C-methionine uptake in astrocytomas with IDH mutations. METHODS We conducted immunohistochemistry for MTAP in 30 patients with astrocytoma, IDH-mutant who underwent 11C-methionine positron emission tomography scans prior to surgical resection. The tumor-to-normal (T/N) ratio of 11C-methionine uptake was calculated using the mean standardized uptake value (SUV) for tumor and normal brain tissues. Cox regression analysis was used for multivariate survival analysis. RESULTS Among IDH-mutant astrocytomas, 26.7% (8/30) exhibited the loss of cytoplasmic MTAP expression, whereas 73.3% (22/30) tumors retained MTAP expression. The median progression-free survival (PFS) was significantly shorter in patients with MTAP loss than those with MTAP retention (1.88 years vs. 6.80 years, p = 0.003). The median overall survival (OS) was also shorter in patients with MTAP loss than in MTAP-retaining counterparts (5.23 years vs. 10.69 years, p = 0.019). Multivariate analysis identified MTAP status (hazard ratio (HR), 0.081) and extent of resection (HR, 0.104) as independent prognostic factors for PFS. Astrocytomas lacking cytoplasmic MTAP expression showed a significantly higher median T/N ratio for 11C-methionine uptake than tumors retaining MTAP (2.12 vs. 1.65, p = 0.012). CONCLUSION Our study revealed that the loss of MTAP expression correlates with poor prognosis and an elevated T/N ratio of 11C-methionine uptake in astrocytoma, IDH-mutant.
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Affiliation(s)
- Toshihiro Yamamura
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Kaoru Tamura
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan.
| | - Daisuke Kobayashi
- Department of Human Pathology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Motoki Inaji
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
- Research Team for Neuroimaging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Yuka Toyama
- Department of Human Pathology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Hiroaki Wakimoto
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA, 02114, USA
| | - Juri Kiyokawa
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Shoko Hara
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
- Research Team for Neuroimaging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Yoji Tanaka
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Tadashi Nariai
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
- Research Team for Neuroimaging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Kazuhide Shimizu
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
| | - Kenji Ishii
- Research Team for Neuroimaging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Taketoshi Maehara
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan
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9
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Vlajnic T, Chijioke O, Roma L, Savic Prince S, Zellweger T, Rentsch CA, Bubendorf L. Loss of MTAP Expression by Immunohistochemistry Is a Surrogate Marker for Homozygous 9p21.3 Deletion in Urothelial Carcinoma. Mod Pathol 2024; 37:100495. [PMID: 38641323 DOI: 10.1016/j.modpat.2024.100495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 02/13/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Homozygous deletion of the chromosomal region 9p21.3 is common in urothelial carcinoma (UC) and leads to loss of several genes, including CDKN2A and MTAP, resulting in loss of MTAP protein expression. Here, we aimed to explore the diagnostic potential of MTAP immunohistochemistry (IHC) as a surrogate marker for homozygous 9p21.3 deletion (9p21 homozygous deletion [HD]) in UC. MTAP status was determined by IHC on 27 UC tissue specimens with known 9p21.3 status as defined by fluorescence in situ hybridization in matched cytological specimens, by IHC and fluorescence in situ hybridization on a tissue microarray (TMA) containing 359 UC at different stages, and by IHC on 729 consecutive UC from routine practice. Moreover, we analyzed a longitudinal series of matched specimens from 38 patients with MTAP-negative recurrent UC. MTAP loss by IHC was found in all 17 patients with 9p21 HD and in 2/8 cases without 9p21 HD. In the TMA, MTAP loss was more common in metastases (53%) than in muscle-invasive (33%) and non-muscle-invasive UC (29%) (P = .03). In the consecutive series, 164/729 (22%) cases showed loss of MTAP expression. In 41 of these 164 cases (25%), loss of MTAP expression was heterogenous. We also discovered loss of MTAP expression in flat urothelium adjacent to MTAP-negative low-grade UC, suggesting true flat low-grade neoplasia that could not be diagnosed by morphology alone. Longitudinal analysis of recurrences showed persistent negative MTAP status over time in 37/38 (97%) patients. MTAP IHC can serve as a surrogate marker for 9p21 HD in UC and as a diagnostic tool to differentiate reactive urothelium from urothelial neoplasia. It also provides a unique opportunity to study clinicopathological associations and the heterogeneity of 9p21 HD across the whole spectrum of UC manifestations.
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Affiliation(s)
- Tatjana Vlajnic
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Obinna Chijioke
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Luca Roma
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Spasenija Savic Prince
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | | | - Cyrill A Rentsch
- Department of Urology, University Hospital Basel, Basel, Switzerland
| | - Lukas Bubendorf
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
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10
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Sonobe H, Omote R, Habara T, Washio K, Yamazoe N, Matsumoto S, Nabeshima K, Toda H. A Rare Case of Pleural Epithelioid Mesothelioma With a Prominent Myxoid Stroma Reported With Morphology, Fluorescent In Situ Hybridization, and Ultrastructural Findings. Cureus 2024; 16:e62212. [PMID: 39006698 PMCID: PMC11244714 DOI: 10.7759/cureus.62212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2024] [Indexed: 07/16/2024] Open
Abstract
Herein, we report a rare case of pleural epithelioid malignant mesothelioma with a prominent myxoid stroma. To date, detailed morphological or molecular pathological findings have not been reported for this type of tumor. Hence, we aimed to describe the cytological, histological, immuno-cytohistological, electron-microscopic, and molecular pathological findings using fluorescence in situ hybridization (FISH) in such a case. The patient was a male in his mid-sixties with a history of asbestos exposure and had originally visited the hospital with a persistent cough and fever. Chest radiography revealed left pleural effusion, and laboratory examination revealed a high titer for hyaluronic acid in the effusion. Additionally, computed tomography revealed diffuse multinodular or cystic lesions in the left parietal pleura, and pleural effusion cytology revealed large epithelioid cells with mild nuclear atypia, which were considered reactive mesothelial cells. Cytologically, Giemsa staining revealed that these cells harbored variously sized intracytoplasmic vacuoles that were Alcian-blue-positive, suggesting hyaluronan production. Biopsy revealed large epithelioid cells that loosely proliferated against a prominent myxoid background. These cells were immuno-positive for calretinin, Wilms' tumor 1, D2-40, vimentin, and cytokeratin AE1/AE3 but not for carcinoembryonic antigen, Ber-EP4, or desmin. BRCA 1 associated protein 1 immunostaining showed nuclear loss, and FISH showed homozygous deletion of cyclin-dependent kinase inhibitor 2A (p16) on chromosome 9p21. Based on these findings, the lesion was diagnosed as an epithelioid mesothelioma with a prominent myxoid stroma. Electron-microscopy demonstrated a dense microvillus pattern on the surface of the tumor cells, indicating a mesothelial cell origin, and variously sized vacuoles in the cytoplasm, confirming the presence of intracytoplasmic vacuoles demonstrated on cytology. The tumor tissues obtained during surgery harbored prominent myxoid stroma, which proved that the present tumor was consistent with this type of mesothelioma. After informed consent was obtained, the patient and family wished for total resection of the tumor and postoperative chemotherapy, and the patient eventually died eight months after surgery.
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Affiliation(s)
- Hiroshi Sonobe
- Department of Diagnostic Pathology, National Hospital Organization Fukuyama Medical Center, Fukuyama, JPN
| | - Rika Omote
- Department of Diagnostic Pathology, National Hospital Organization Fukuyama Medical Center, Fukuyama, JPN
| | - Toshiyuki Habara
- Department of Clinical Laboratory, Chugoku Central Hospital of the Mutual Aid Associations of Public School Teachers, Fukuyama, JPN
| | - Kazuhiro Washio
- Department of Surgery, Chugoku Central Hospital of the Mutual Aid Associations of Public School Teachers, Fukuyama, JPN
| | | | - Shinji Matsumoto
- Department of Pathology, Fukuoka University Hospital, Fukuoka, JPN
| | - Kazuki Nabeshima
- Department of Diagnostic Pathology, Pathological Diagnosis Center, Fukuoka Tokushukai Hospital, Fukuoka, JPN
| | - Hiroko Toda
- Department of Diagnostic Pathology, Chugoku Central Hospital of the Mutual Aid Associations of Public School Teachers, Fukuyama, JPN
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11
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Hocking AJ, Mortimer LA, Farrall AL, Russell PA, Klebe S. Establishing mesothelioma patient-derived organoid models from malignant pleural effusions. Lung Cancer 2024; 191:107542. [PMID: 38555809 DOI: 10.1016/j.lungcan.2024.107542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
OBJECTIVES Pleural mesothelioma is a cancer arising in the cells that line the lungs and chest wall with poor survival and poor response to first-line therapy. Organoid models of cancer can faithfully recapitulate the genetic and histopathological characteristics of individualized tumors and have potential to be used for precision medicine, however methods of establishing patient-derived mesothelioma organoids have not been well established in the published literature. MATERIALS AND METHODS Long-term mesothelioma patient-derived organoids were established from ten malignant pleural effusion fluids. Mesothelioma patient-derived organoids were compared to the corresponding biopsy tissue specimens using immunohistochemistry labelling for select diagnostic markers and the TruSight Oncology-500 sequencing assay. Cell viability in response to the chemotherapeutic drug cisplatin was assessed. RESULTS We established five mesothelioma patient-derived organoid cultures from ten malignant pleural effusion fluids collected from nine individuals with pleural mesothelioma. Mesothelioma patient-derived organoids typically reflected the histopathological and genomic features of patients' matched biopsy specimens and displayed cytotoxic sensitivity to cisplatin in vitro. CONCLUSION This is the first study of its kind to establish long-term mesothelioma organoid cultures from malignant pleural effusions and report on their utility to test individuals' chemotherapeutic sensitivities ex vivo.
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Affiliation(s)
- Ashleigh J Hocking
- College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Lauren A Mortimer
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Alexandra L Farrall
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Prudence A Russell
- LifeStrands Genomics and TissuPath Pathology, Mount Waverley, Victoria, Australia
| | - Sonja Klebe
- College of Medicine and Public Health, Flinders University, Adelaide, Australia; Anatomical Pathology, SA Pathology, Flinders Medical Centre, Bedford Park, Australia
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12
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Parra-Medina R, Castañeda-González JP, Chaves-Cabezas V, Alzate JP, Chaves JJ. Diagnostic performance of immunohistochemistry markers for malignant pleural mesothelioma diagnosis and subtypes. A systematic review and meta-analysis. Pathol Res Pract 2024; 257:155276. [PMID: 38603842 DOI: 10.1016/j.prp.2024.155276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Malignant pleural mesothelioma (MPM) poses diagnostic challenges due to its resemblance to benign pleural pathologies and different histological subtypes. Several immunohistochemistry markers have been employed to aid in accurate diagnosis. METHODS The present systematic review and meta-analysis aimed to assess the diagnostic performance of various immunohistochemistry markers in malignant pleural mesothelioma diagnosis and its histological subtypes. Following the PRISMA guidelines, we systematically searched the literature for articles on using different immunohistochemical markers in MPM and its histological subtypes. EMBASE, LILACS, MEDLINE, and Virtual Health Library were searched for studies published up to August 2023. We used the QUADAS-2 (Quality Assessment of Diagnostic Accuracy Studies) criteria to assess the quality of the included articles. Meta-analyses were performed to determine prevalence using a random-effects model. RESULTS 103 studies met the inclusion criteria, comprising a diverse range of immunohistochemistry markers. EMA and desmin-loss exhibited high sensitivity (96% and 92%, respectively) in distinguishing malignant pleural mesothelioma from benign pleural pathologies. Specificity was notably high for both BAP1-loss and survivin expression at 100%. Subtype-specific analyses demonstrated that EMA and HEG1 were sensitive markers for epithelioid mesothelioma, while GLUT1 showed high sensitivity for sarcomatoid mesothelioma. In cases comparing epithelioid mesothelioma and lung adenocarcinoma, CAM5.2 and calretinin displayed high sensitivity, while WT1 and BAP1-loss demonstrated exceptional specificity for malignant epithelioid mesothelioma. In the case of sarcomatoid mesothelioma and sarcomatoid lung carcinoma, GATA3 exhibited the most heightened sensitivity, while GATA3 and D2-40 displayed the best specificity for sarcomatoid malignant mesothelioma diagnosis. CONCLUSION Immunohistochemistry markers are essential in accurately diagnosing malignant pleural mesothelioma and its histological subtypes. This systematic review and meta-analysis provide a comprehensive insight into the diagnostic performance of these markers, facilitating their potential clinical utility in the discrimination of malignant pleural mesothelioma from other pleural pathologies and the differentiation of malignant pleural mesothelioma subtypes.
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Affiliation(s)
- Rafael Parra-Medina
- Research Institute, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia; Department of Pathology, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia; Department of Pathology, Instituto Nacional de Cancerología, Bogotá.
| | - Juan Pablo Castañeda-González
- Research Institute, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia; Department of Pathology, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia.
| | - Viviana Chaves-Cabezas
- Department of Pathology, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia.
| | - Juan Pablo Alzate
- Research Institute, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia.
| | - Juan José Chaves
- Department of Medicine, Norwalk Hospital, Yale School of Medicine, Norwalk, CT, United States.
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13
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Miller LJ, Holmes IM, Lew M. An Updated Contextual Approach to Mesothelial Proliferations in Pleural Effusion Cytology Leveraging Morphology, Ancillary Studies, and Novel Biomarkers. Arch Pathol Lab Med 2024; 148:409-418. [PMID: 37622452 DOI: 10.5858/arpa.2023-0049-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2023] [Indexed: 08/26/2023]
Abstract
CONTEXT.— Pleural effusions are common cytologic specimens that can be leveraged to make diagnoses of malignancy that drive appropriate patient management. However, the overlap in morphologic features of reactive mesothelial proliferations, mesotheliomas, and adenocarcinomas can create diagnostic pitfalls in the cytologic evaluation of pleural fluids. OBJECTIVE.— To review the morphologic spectrum of benign and malignant mesothelial proliferations in pleural effusions, as well as relevant clinicoradiologic contexts and ancillary tests. DATA SOURCES.— Existing scientific and clinical literature as of January 2023. CONCLUSIONS.— We can leverage the knowledge of several overlapping morphologic features, clinicoradiologic scenarios, and immunohistochemical studies to enhance the diagnostic accuracy of pleural effusion cytology to appropriately delineate cases of adenocarcinoma, reactive mesothelial proliferation, and mesothelioma. Earlier diagnosis through cytology, particularly in cases of mesothelioma, may positively impact patient treatment options and prognosis.
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Affiliation(s)
- Lauren J Miller
- From the Department of Pathology, University of Michigan Hospital and Health System, Ann Arbor
| | - Isabella M Holmes
- From the Department of Pathology, University of Michigan Hospital and Health System, Ann Arbor
| | - Madelyn Lew
- From the Department of Pathology, University of Michigan Hospital and Health System, Ann Arbor
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14
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Ding CKC, Van Roo J, Kryvenko ON, Ye H, McKenney JK, Epstein JI. Mesothelioma of Uncertain Malignant Potential (MUMP) of the Tunica Vaginalis: Proposal for Reclassification as "Complex Mesothelial Tumor of the Tunica Vaginalis". Am J Surg Pathol 2024; 48:387-394. [PMID: 38270560 DOI: 10.1097/pas.0000000000002185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
A well-differentiated papillary mesothelial tumor (WDPMT) and malignant mesothelioma are 2 well-recognized entities arising from the testis tunica vaginalis. Another mesothelial lesion exclusively seen at this site is mesothelioma of uncertain malignant potential (MUMP)-a lesion reminiscent of WDPMT yet demonstrating variable proportions of more complex architectural patterns that could be confused with invasion. MUMP was first described in 2010 with a total of 11 cases reported to date. Herein, we describe 19 additional patients who underwent hydrocelectomy, excision, and/or orchiectomy. Novel morphologic patterns found in addition to the 2010 series include spindle cells, keloidal-type collagen, and multicystic architecture lined by bland mesothelial cells. Clinical follow-up in 9 patients for more than 1 year (1.5 to 22.5 y, median 4.5 y) revealed no evidence of disease recurrence or metastases. Despite greater architectural complexity, MUMP has (1) bland cytology; (2) merging in with WDPMT areas; (3) low mitotic rate and Ki-67 nuclear labeling index; (4) retention of MTAP and BAP1 expression; and (5) benign clinical follow-up. If these cases were malignant mesotheliomas, one would have expected at least some of the patients to demonstrate disease recurrence/progression without adjuvant therapy within the available follow-up time, particularly with limited resection in most patients. Thus, we propose that "mesothelioma of uncertain malignant potential" be renamed as "complex mesothelial tumor of the tunica vaginalis." Using the term "complex" draws a contrast with the simple cuboidal lining and simple papillary architecture seen in WDPMT. Also, labeling the lesion as "tumor" removes the stigmata of "uncertain malignant potential" and "mesothelioma" that are alarming to patients and clinicians, and potentially could unduly lead to more extensive surgery in an attempt at "complete" resection. At the same time, not definitively labeling the lesion as benign allows recommendations for follow-up.
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Affiliation(s)
| | | | - Oleksandr N Kryvenko
- Department of Pathology, Desai Sethi Urology Institute, Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - Huihui Ye
- Department of Pathology & Laboratory Medicine, University of California, Los Angeles, CA
| | - Jesse K McKenney
- Department of Anatomic Pathology, Cleveland Clinic, Cleveland, OH
| | - Jonathan I Epstein
- Urology
- Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
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15
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Brims F, Kumarasamy C, Menon L, Olsen N, de Klerk N, Franklin P. The Western Australian Mesothelioma Registry: Analysis of 60 years of cases. Respirology 2024; 29:288-294. [PMID: 38153786 DOI: 10.1111/resp.14648] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND AND OBJECTIVE Australia introduced a partial ban on asbestos consumption in 1984. There is continuing concern about exposure to asbestos in the built environment and non-occupational exposures. The aim of this study was to describe epidemiological trends of mesothelioma in Western Australia (WA) over the 60 years since the first case was recorded. METHODS Every case of mesothelioma notified to the WA Cancer Registry is reviewed by an expert panel. Data include demographic and clinical variables including principal mode of asbestos exposure and age at first exposure. Trends over time for survival, latency and pathological subtype of mesothelioma where analysed. Incidence rates for cases exposed during home renovation where calculated. RESULTS Two thousand seven hundred ninety-six cases of mesothelioma were identified with males comprising the majority (n = 2368, 84.7%). The median (IQR) age at diagnosis was 70 (62-78) years, and median latency of 47 (38-55) years. Pleural mesothelioma was recorded in 2620 (93.7%) cases with the epithelioid subtype most prevalent (n = 1730, 61.9%). Overall, median survival was 298 (128-585) days and latency 46 (37-54) years, both effectively doubling over the study period. Non-occupational exposures were proportionally higher in females (52.6%), compared with males (9.5%). Home renovation was the primary exposure in 227 (8.1%) cases, with number of cases and incidence rate ratio peaking in 2005/09 but subsequently decreasing. CONCLUSION The annual number of cases of mesothelioma in WA may have hit a plateau. The majority of females have non-occupational exposures and incidence rates from home renovation exposure may have peaked, suggesting the ban on asbestos has been effective.
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Affiliation(s)
- Fraser Brims
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Perth, Western Australia, Australia
| | - Chellan Kumarasamy
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Lalitha Menon
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - Nola Olsen
- Department of Health, WA Cancer Registry, Perth, Western Australia, Australia
- School of Global and Population Health, University of Western Australia, Perth, Western Australia, Australia
| | - Nick de Klerk
- School of Global and Population Health, University of Western Australia, Perth, Western Australia, Australia
| | - Peter Franklin
- School of Global and Population Health, University of Western Australia, Perth, Western Australia, Australia
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16
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Febres-Aldana CA, Chang JC, Jungbluth AA, Adusumilli PS, Bodd FM, Frosina D, Geronimo JA, Hernandez E, Irawan H, Offin MD, Rekhtman N, Travis WD, Vanderbilt C, Zauderer MG, Zhang Y, Ladanyi M, Yang SR, Sauter JL. Comparison of Immunohistochemistry, Next-generation Sequencing and Fluorescence In Situ Hybridization for Detection of MTAP Loss in Pleural Mesothelioma. Mod Pathol 2024; 37:100420. [PMID: 38185249 DOI: 10.1016/j.modpat.2023.100420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/28/2023] [Accepted: 12/29/2023] [Indexed: 01/09/2024]
Abstract
9p21 deletions involving MTAP/CDKN2A genes are detected in diffuse pleural mesotheliomas (DPM) but are absent in benign mesothelial proliferations. Loss of MTAP expression by immunohistochemistry (IHC) is well accepted as a surrogate for 9p21 deletion to support a diagnosis of DPM. Accurate interpretation can be critical in the diagnosis of DPM, but variations in antibody performance may impact interpretation. The objectives of this study were to compare the performance of MTAP monoclonal antibodies (mAbs) EPR6893 and 1813 and to compare MTAP expression by IHC with 9p21 copy number status in DPM. Cytoplasmic expression of MTAP IHC with mAbs EPR6893 (ab126770; Abcam) and 1813 (NBP2-75730, Novus Biologicals) was evaluated in 56 DPM (47 epithelioid, 7 biphasic, and 2 sarcomatoid) profiled by targeted next-generation sequencing. 9p21 Copy number status was assessed by Fraction and Allele-Specific Copy Number Estimates from Tumor Sequencing (FACETS) analysis and also by CDKN2A fluorescence in situ hybridization in discrepant cases when material was available. MTAP mAb 1813 showed stronger immunoreactivity, more specific staining, and no equivocal interpretations compared to mAb EPR6893 which showed equivocal staining in 19 (34%) of cases due to weak or heterogenous immunoreactivity, lack of definitive internal positive control, and/or nonspecific background staining. MTAP expression with mAb 1813 showed near perfect agreement with 9p21 copy number by combined FACETS/fluorescence in situ hybridization calls (κ = 0.85; 95% CI, 0.71-0.99; P < .001). MTAP IHC with mAb 1813 was 96% sensitive, 86% specific, and 93% accurate for 9p21 homozygous deletion. The findings of this study suggest that interpretation of MTAP IHC is improved with mAb 1813 because mAb EPR6893 was often limited by equivocal interpretations. We show that MTAP IHC and molecular assays are complementary in detecting 9p21 homozygous deletion. MTAP IHC may be particularly useful for low tumor purity samples and in low-resource settings.
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Affiliation(s)
| | - Jason C Chang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Achim A Jungbluth
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Prasad S Adusumilli
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Francis M Bodd
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Denise Frosina
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jerica A Geronimo
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Enmily Hernandez
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Helen Irawan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Michael D Offin
- Thoracic Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Natasha Rekhtman
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - William D Travis
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chad Vanderbilt
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marjorie G Zauderer
- Thoracic Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yanming Zhang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Soo-Ryum Yang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jennifer L Sauter
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
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17
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Deng H. Utility of Immunohistochemistry in the Diagnosis of Pleuropulmonary and Mediastinal Cancers: A Review and Update. Arch Pathol Lab Med 2024; 148:267-283. [PMID: 37406295 DOI: 10.5858/arpa.2022-0483-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2023] [Indexed: 07/07/2023]
Abstract
CONTEXT.— Immunohistochemistry has become a valuable ancillary tool for the accurate classification of pleuropulmonary and mediastinal neoplasms necessary for therapeutic decisions and predicting prognostic outcome. Diagnostic accuracy has significantly improved because of the continuous discoveries of tumor-associated biomarkers and the development of effective immunohistochemical panels. OBJECTIVE.— To increase the accuracy of diagnosis and classify pleuropulmonary neoplasms through immunohistochemistry. DATA SOURCES.— Literature review and the author's research data and personal practice experience. CONCLUSIONS.— This review article highlights that appropriately selecting immunohistochemical panels enables pathologists to effectively diagnose most primary pleuropulmonary neoplasms and differentiate primary lung tumors from a variety of metastatic tumors to the lung. Knowing the utilities and pitfalls of each tumor-associated biomarker is essential to avoid potential diagnostic errors.
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Affiliation(s)
- Hongbing Deng
- From the Department of Pathology, Geisinger Commonwealth Medical School and Pathology, Geisinger Wyoming Valley Medical Center, Geisinger Health System, Wilkes-Barre, Pennsylvania
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18
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Febres-Aldana CA, Fanaroff R, Offin M, Zauderer MG, Sauter JL, Yang SR, Ladanyi M. Diffuse Pleural Mesothelioma: Advances in Molecular Pathogenesis, Diagnosis, and Treatment. ANNUAL REVIEW OF PATHOLOGY 2024; 19:11-42. [PMID: 37722697 DOI: 10.1146/annurev-pathol-042420-092719] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Diffuse pleural mesothelioma (DPM) is a highly aggressive malignant neoplasm arising from the mesothelial cells lining the pleural surfaces. While DPM is a well-recognized disease linked to asbestos exposure, recent advances have expanded our understanding of molecular pathogenesis and transformed our clinical practice. This comprehensive review explores the current concepts and emerging trends in DPM, including risk factors, pathobiology, histologic subtyping, and therapeutic management, with an emphasis on a multidisciplinary approach to this complex disease.
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Affiliation(s)
- Christopher A Febres-Aldana
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA; ,
| | - Rachel Fanaroff
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA; ,
| | - Michael Offin
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Marjorie G Zauderer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jennifer L Sauter
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA; ,
| | - Soo-Ryum Yang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA; ,
| | - Marc Ladanyi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA; ,
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19
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Gundogdu F, Babaoglu B, Soylemezoglu F. Reliability assessment of methylthioadenosine phosphorylase immunohistochemistry as a surrogate biomarker for CDKN2A homozygous deletion in adult-type IDH-mutant diffuse gliomas. J Neuropathol Exp Neurol 2024; 83:107-114. [PMID: 38109891 PMCID: PMC10799299 DOI: 10.1093/jnen/nlad109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Abstract
According to the 2021 World Health Organization classification of brain tumors, astrocytomas containing a CDKN2A/B homozygous deletion (HD) are designated as grade 4 even when no microvascular proliferation and/or necrosis is present. In this study, we aimed to investigate the relationship between CDKN2A HD and loss of methylthioadenosine phosphorylase (MTAP) expression in adult-type IDH-mutant gliomas and to assess the sensitivity and specificity of MTAP immunohistochemistry (IHC) along with interobserver agreement as a surrogate biomarker for CDKN2A HD. Eighty-eight astrocytomas and 71 oligodendrogliomas cases that were diagnosed between 2014 and 2021 at Hacettepe University were selected and tissue microarrays were conducted to perform CDKN2A fluorescence in situ hybridization and MTAP IHC. Twenty-five (15.7%) cases harbored CDKN2A HD. MTAP loss was detected in 28 (15.7%) cases by the first observer and 27 (17%) cases by the second observer. The sensitivity and specificity of MTAP were calculated as 88% and 95.52%-96.27% for 2 observers. A very good/perfect agreement was noted between the observers (Cohen kappa coefficient = 0.938). Intratumoral heterogeneity was observed in 4 cases. MTAP IHC was found to be a reliable surrogate biomarker as a possible alternative to CDKN2A HD identification with a high sensitivity and specificity along with high interobserver agreement.
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Affiliation(s)
- Fatma Gundogdu
- Department of Pathology, Hacettepe University, Ankara, Turkey
| | - Berrin Babaoglu
- Department of Pathology, Hacettepe University, Ankara, Turkey
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20
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Pateras IS, Igea A, Nikas IP, Leventakou D, Koufopoulos NI, Ieronimaki AI, Bergonzini A, Ryu HS, Chatzigeorgiou A, Frisan T, Kittas C, Panayiotides IG. Diagnostic Challenges during Inflammation and Cancer: Current Biomarkers and Future Perspectives in Navigating through the Minefield of Reactive versus Dysplastic and Cancerous Lesions in the Digestive System. Int J Mol Sci 2024; 25:1251. [PMID: 38279253 PMCID: PMC10816510 DOI: 10.3390/ijms25021251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024] Open
Abstract
In the setting of pronounced inflammation, changes in the epithelium may overlap with neoplasia, often rendering it impossible to establish a diagnosis with certainty in daily clinical practice. Here, we discuss the underlying molecular mechanisms driving tissue response during persistent inflammatory signaling along with the potential association with cancer in the gastrointestinal tract, pancreas, extrahepatic bile ducts, and liver. We highlight the histopathological challenges encountered in the diagnosis of chronic inflammation in routine practice and pinpoint tissue-based biomarkers that could complement morphology to differentiate reactive from dysplastic or cancerous lesions. We refer to the advantages and limitations of existing biomarkers employing immunohistochemistry and point to promising new markers, including the generation of novel antibodies targeting mutant proteins, miRNAs, and array assays. Advancements in experimental models, including mouse and 3D models, have improved our understanding of tissue response. The integration of digital pathology along with artificial intelligence may also complement routine visual inspections. Navigating through tissue responses in various chronic inflammatory contexts will help us develop novel and reliable biomarkers that will improve diagnostic decisions and ultimately patient treatment.
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Affiliation(s)
- Ioannis S. Pateras
- 2nd Department of Pathology, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens, 124 62 Athens, Greece; (D.L.); (N.I.K.); (A.I.I.); (I.G.P.)
| | - Ana Igea
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
- Mobile Genomes, Centre for Research in Molecular Medicine and Chronic Diseases (CiMUS), University of Santiago de Compostela (USC), 15706 Santiago de Compostela, Spain
| | - Ilias P. Nikas
- Medical School, University of Cyprus, 2029 Nicosia, Cyprus
| | - Danai Leventakou
- 2nd Department of Pathology, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens, 124 62 Athens, Greece; (D.L.); (N.I.K.); (A.I.I.); (I.G.P.)
| | - Nektarios I. Koufopoulos
- 2nd Department of Pathology, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens, 124 62 Athens, Greece; (D.L.); (N.I.K.); (A.I.I.); (I.G.P.)
| | - Argyro Ioanna Ieronimaki
- 2nd Department of Pathology, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens, 124 62 Athens, Greece; (D.L.); (N.I.K.); (A.I.I.); (I.G.P.)
| | - Anna Bergonzini
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital, Alfred Nobels Allé 8, 141 52 Stockholm, Sweden;
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, 901 87 Umeå, Sweden;
| | - Han Suk Ryu
- Department of Pathology, Seoul National University Hospital, Seoul 03080, Republic of Korea;
| | - Antonios Chatzigeorgiou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece;
| | - Teresa Frisan
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, 901 87 Umeå, Sweden;
| | - Christos Kittas
- Department of Histopathology, Biomedicine Group of Health Company, 156 26 Athens, Greece;
| | - Ioannis G. Panayiotides
- 2nd Department of Pathology, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens, 124 62 Athens, Greece; (D.L.); (N.I.K.); (A.I.I.); (I.G.P.)
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21
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Pagliuca F, Lucà S, De Sio M, Arcaniolo D, Facchini G, De Martino M, Esposito F, DE Vita F, Chieffi P, Franco R. Testicular/paratesticular mesothelial tumours: Uncommon histopathologic entities in a very complex anatomical site. Pathol Res Pract 2024; 253:155069. [PMID: 38181581 DOI: 10.1016/j.prp.2023.155069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Mesothelial tumours of the testicular/paratesticular region are uncommon, poorly characterised and difficult-to-diagnose lesions. They encompass entirely benign proliferations (adenomatoid tumour) and malignant, very aggressive tumours (mesothelioma) whose morphological features can be overlapping, highly variable and confounding. Moreover, testicular/paratesticular mesothelial tumours comprise relatively new entities with indolent behaviour (well-differentiated papillary mesothelial tumour) as well as tumours which cannot be correctly included in any of the aforementioned categories and whose classification is still controversial. The molecular profile of such tumours represents an open issue. In fact, despite the recent discoveries about the genomic landscape of mesothelial proliferations at other sites (pleura, peritoneum), testicular/paratesticular mesothelial tumours, and namely mesotheliomas, are too rare to be extensively studied on large case series and they could arguably hide relevant differences in their molecular background when compared to the more common pleural/peritoneal counterparts.The aim of this review is to provide a guide for the pathological assessment of testicular/paratesticular mesothelial tumours. Herein, we describe the most recent updates on this topic according to the latest (year 2022) World Health Organisation Classification of Urinary and Male Genital Tumours (5th edition) and current literature. The diagnostic criteria, the main differentials and the role of ancillary techniques in the diagnosis of mesothelial testicular/paratesticular tumours are discussed.
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Affiliation(s)
| | - Stefano Lucà
- Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
| | - Marco De Sio
- Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", 80131 Naples, Italy; Urology Unit, Azienda Policlinico Unversità 'L. Vanvitelli', 80131 Naples, Italy
| | - Davide Arcaniolo
- Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", 80131 Naples, Italy; Urology Unit, Azienda Policlinico Unversità 'L. Vanvitelli', 80131 Naples, Italy
| | - Gaetano Facchini
- Oncology Unit, "S. Maria delle Grazie" Hospital, ASL NA2 NORD, 80078 Pozzuoli, Naples, Italy
| | - Marco De Martino
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy; Institute of Endocrinology and Experimental Oncology of the CNR, 80131 Naples, Italy
| | - Francesco Esposito
- Institute of Endocrinology and Experimental Oncology of the CNR, 80131 Naples, Italy
| | - Ferdinando DE Vita
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
| | - Paolo Chieffi
- Department of Precision Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy.
| | - Renato Franco
- Pathology Unit, Azienda Policlinico Unversità 'L. Vanvitelli, Italy; Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", 80138 Naples, Italy
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22
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Sasaki M, Sato Y, Nakanuma Y. Nestin may be a candidate marker for differential diagnosis between small duct type and large duct type intrahepatic cholangiocarcinomas. Pathol Res Pract 2024; 253:155061. [PMID: 38154357 DOI: 10.1016/j.prp.2023.155061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUNDS/AIMS Intrahepatic cholangiocarcinoma (iCCA) is subclassified into small and large duct types. These two subtypes show distinct differences in various clinicopathological features and possible cell origin and pathways of carcinogenesis, however, a differential diagnosis may be sometimes difficult. Given the type IV intermediate filament, Nestin, may be a candidate diagnostic marker for combined hepatocellular-cholangiocarcinoma (cHCC-CCA) and small duct type iCCAs, the significance of nestin as a differential diagnostic marker between small and large duct types of iCCAs was addressed in the present study. METHODS Nestin expression was immunohistochemically assessed in the sections from 36 patients with small duct-type iCCA, 30 with large duct-type iCCA, and 27 with extrahepatic cholangiocarcinoma (CCA). Nestin expression and its relationship with clinicopathological features and genetic alterations were investigated in small duct type iCCAs. RESULTS Nestin expression was detected in 17 small duct type iCCAs (47.2%), one large duct type iCCA (3.8%) and zero extrahepatic CCA. Nestin expression was significantly more frequent in the patients with small duct type iCCAs than in those with large duct type iCCA and extrahepatic CCA (p < 0.01). In 10 liver biopsies, all samples with nestin expression were small duct type iCCAs. Nestin-positive small duct type iCCAs were characterized by a higher histological grade, compared to Nestin-negative small duct type iCCAs (p < 0.01). Nestin-positive small duct type iCCAs tended to have 2 or more genetic alterations, but there was no statistic difference (p > 0.05). CONCLUSION Different nestin expression may reflect differences between small duct type iCCA and large duct type/extrahepatic CCA and may be a useful diagnostic marker for small duct type iCCAs.
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Affiliation(s)
- Motoko Sasaki
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.
| | - Yasunori Sato
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Yasuni Nakanuma
- Division of Pathology, Fukui Saiseikai Hospital, Fukui, Japan
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23
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Churg A. New developments in mesothelial pathology. Histopathology 2024; 84:136-152. [PMID: 37694811 DOI: 10.1111/his.15007] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/12/2023] [Accepted: 06/26/2023] [Indexed: 09/12/2023]
Abstract
This review article examines some new and some problem areas in mesothelial pathology, four of which are discussed, as follows. (1) The concept of mesothelioma in situ: this lesion is defined as a single layer of bland mesothelial cells without evidence of invasion, but that have lost BAP1 and/or MTAP by immunohistochemistry. Benign reactions can exactly mimic mesothelioma in situ, but a hint to the correct diagnosis is a story of recurrent pleural effusions/ascites of unknown aetiology without radiological or direct visual evidence of tumour. (2) The nature of well-differentiated papillary mesothelial tumour (WDPMT): WDPMT has a long history of arguments regarding its behaviour, and this uncertainty can now be seen to arise, in part, from the observation that some forms of mesothelioma in situ microscopically look exactly like WDPMT. Hence, it is recommended to always run at least a BAP1 stain on any lesion that looks like WDPMT. Both flat and WDPMT-like mesothelioma in situ are strongly associated with eventual development of invasive mesothelioma, but this process is relatively slow. (3) New immunostains for separating mesothelioma from other tumours: here, it is proposed that in most cases, and particularly when the differential is epithelioid mesothelioma versus non-small cell lung cancer, one can make this separation with extremely high sensitivity and specificity using just two stains: HEG1 and claudin-4. (4) Markers for separating benign from malignant mesothelial proliferations: this topic is briefly reviewed, with an indication of which markers are generally accepted and the best utilisation and possible limitations of each marker.
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Affiliation(s)
- Andrew Churg
- Department of Pathology, Vancouver General Hospital, University of British Columbia, Vancouver, BC, Canada
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24
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Tosefsky K, Martin KC, Rebchuk AD, Wang JZ, Nassiri F, Lum A, Zadeh G, Makarenko S, Yip S. Molecular prognostication in grade 3 meningiomas and p16/MTAP immunohistochemistry for predicting CDKN2A/B status. Neurooncol Adv 2024; 6:vdae002. [PMID: 38288091 PMCID: PMC10824160 DOI: 10.1093/noajnl/vdae002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024] Open
Abstract
Background The World Health Organization 2021 classification introduces molecular grading criteria for anaplastic meningiomas, including TERT promoter (TERTp) mutations and CDKN2A/B homozygous deletion. Additional adverse prognostic factors include H3K27me3 and BAP1 loss. The aim of this study was to explore whether these molecular alterations stratified clinical outcomes in a single-center cohort of grade 3 meningiomas. Additionally, we examined whether p16 and MTAP immunohistochemistry can predict CDKN2A/B status. Methods Clinical and histopathological information was obtained from the electronic medical records of grade 3 meningiomas resected at a tertiary center between 2007 and 2020. Molecular testing for TERTp mutations and CDKN2A/B copy-number status, methylation profiling, and immunohistochemistry for H3K27me3, BAP1, p16, and methylthioadenosine phosphorylase (MTAP) were performed. Predictors of survival were identified by Cox regression. Results Eight of 15 cases demonstrated elevated mitotic index (≥20 mitoses per 10 consecutive high-power fields), 1 tumor exhibited BAP1 loss, 4 harbored TERTp mutations, and 3 demonstrated CDKN2A/B homozygous deletion. Meningiomas with TERTp mutations and/or CDKN2A/B homozygous deletion showed significantly reduced survival compared to anaplastic meningiomas with elevated mitotic index alone. Immunohistochemical loss of p16 and MTAP demonstrated high sensitivity (67% and 100%, respectively) and specificity (100% and 100%, respectively) for predicting CDKN2A/B status. Conclusions Molecular alterations of grade 3 meningiomas stratify clinical outcomes more so than histologic features alone. Immunohistochemical loss of p16 and MTAP show promise in predicting CDKN2A/B status.
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Affiliation(s)
- Kira Tosefsky
- MD Undergraduate Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Karina Chornenka Martin
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alexander D Rebchuk
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Justin Z Wang
- Division of Neurosurgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Farshad Nassiri
- Division of Neurosurgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Amy Lum
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Gelareh Zadeh
- Division of Neurosurgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Serge Makarenko
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephen Yip
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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25
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Kaplan MA, Şendur MAN, Cangır AK, Fırat P, Göker E, Kılıçkap S, Oyan B, Büge Öz A, Özdemir F, Özyiğit G. Established and new treatment roadmaps for pleural mesothelioma: opinions of the Turkish Collaborative Group. Curr Probl Cancer 2023; 47:101017. [PMID: 37845104 DOI: 10.1016/j.currproblcancer.2023.101017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 08/16/2023] [Accepted: 09/05/2023] [Indexed: 10/18/2023]
Abstract
Pleural mesothelioma (PM) is a cancer of the pleural surface, which is aggressive and may be rapidly fatal. PM is a rare cancer worldwide, but is a relatively common disease in Turkey. Asbestos exposure is the main risk factor and the most common underlying cause of the disease. There have been significant improvements in diagnoses and treatments of many malignancies; however, there are still therapeutic challenges in PM. In this review, we aimed to increase the awareness of health care professionals, oncologists, and pulmonologists by underlining the unmet needs of patients with PM and by emphasizing the need for a multidisciplinary treatment and management of PM. After reviewing the general information about PM, we further discuss the treatment options for patients with PM using immunotherapy and offer evidence for improvements in the clinical outcomes of these patients because of these newer treatment modalities.
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Affiliation(s)
- Muhammet Ali Kaplan
- Department of Medical Oncology, Dicle University Hospitals Faculty of Medicine, Diyarbakır, Turkey.
| | - Mehmet Ali Nahit Şendur
- Department of Medical Oncology, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
| | - Ayten Kayı Cangır
- Department of Thoracic Surgery, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey
| | - Pınar Fırat
- Department of Pathology, Koc University School of Medicine, Istanbul, Turkey
| | - Erdem Göker
- Department of Medical Oncology, Ege University Faculty of Medicine, Izmir, Turkey
| | - Saadettin Kılıçkap
- Department of Medical Oncology, Liv Hospital Ankara, Ankara, Turkey; Department of Medical Oncology, Istinye University Faculty of Medicine, Istanbul, Turkey
| | - Başak Oyan
- Department of Medical Oncology, Acıbadem University Faculty of Medicine, Istanbul, Turkey
| | - Ayşim Büge Öz
- Department of Medical Pathology, Istanbul University Cerrahpaşa Faculty of Medicine, Istanbul, Turkey
| | - Feyyaz Özdemir
- Department of Medical Oncology, Karadeniz Technical University, Trabzon, Turkey
| | - Gökhan Özyiğit
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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26
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Motanagh SA, Dwan D, Azizgolshani N, E Muller K, diFlorio-Alexander RM, Marotti JD. Sixteen-Year Institutional Review of Magnetic Resonance Imaging-Guided Breast Biopsies: Trends in Histologic Diagnoses With Radiologic Correlation. Breast Cancer (Auckl) 2023; 17:11782234231215193. [PMID: 38034324 PMCID: PMC10685755 DOI: 10.1177/11782234231215193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
Background Breast magnetic resonance imaging (MRI) is an important imaging tool for the management of breast cancer patients and for screening women at high risk for breast cancer. Objectives To examine long-term trends in the distribution of histologic diagnoses obtained from MRI-guided breast biopsies. Design Retrospective analysis. Methods We retrospectively reviewed the distribution of histologic diagnoses of MRI-guided breast biopsies from 2004 to 2019. All cases underwent central pathology review and lesions were classified based on the most prominent histologic finding present. Magnetic resonance imaging features were extracted from radiology reports when available and correlated with pathology diagnoses. Results Four hundred ninety-four MRI-guided biopsies were performed on 440 patients; overall, 73% of biopsies were benign and 27% were malignant. The annual percentages of benign and malignant diagnoses remained similar throughout the 16-year period. Of the benign entities commonly identified, the percentage of benign papillary and sclerosing lesions detected in the benign biopsies increased significantly (13% in 2004-2011 vs 31% in 2012-2019, P = .03). The mean size of malignant lesions was larger than benign lesions (30.1 mm compared with 14.2 mm, P = .045); otherwise, there were no distinguishing radiologic features between benign and malignant lesions. Conclusion The specificity of breast MRI remained constant over a 16-year period; however, there was a shift in the distribution of benign diagnoses with increased detection and biopsy of benign papillary and sclerosing lesions. Monitoring the distribution of breast MRI biopsy diagnoses over time with radiology-pathology correlation might improve the suboptimal specificity of breast MRI.
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Affiliation(s)
- Samaneh A Motanagh
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Dennis Dwan
- Department of Radiology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Nasim Azizgolshani
- Department of Radiology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Kristen E Muller
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Roberta M diFlorio-Alexander
- Department of Radiology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Jonathan D Marotti
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
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27
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Vrugt B, Kirschner MB, Meerang M, Oehl K, Wagner U, Soltermann A, Moch H, Opitz I, Wild PJ. Deletions of CDKN2A and MTAP Detected by Copy-Number Variation Array Are Associated with Loss of p16 and MTAP Protein in Pleural Mesothelioma. Cancers (Basel) 2023; 15:4978. [PMID: 37894345 PMCID: PMC10605896 DOI: 10.3390/cancers15204978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
CDKN2A deletion is a common alteration in pleural mesothelioma (PM) and frequently associated with co-deletion of MTAP. Since the standard detection method for CDKN2A deletion and FISH analysis is relatively expensive, we here investigated the suitability of inexpensive p16 and MTAP IHC by comparing concordance between IHC and OncoScan CNV arrays on samples from 52 PM patients. Concordance was determined using Cohen's kappa statistics. Loss of CDKN2A was associated with co-deletion of MTAP in 71% of cases. CDKN2A-MTAP copy-number normal cases were also IHC positive in 93% of cases for p16 and 100% for MTAP, while homozygous deletion of CDKN2A-MTAP was always associated with negative IHC for both proteins. In cases with heterozygous CDKN2A-MTAP loss, IHC expression of p16 and MTAP was negative in 100% and 71%, respectively. MTAP and p16 IHC showed high sensitivity (MTAP 86.5%, p16 100%) and specificity (MTAP 100%, p16 93.3%) for the detection of any gene loss. Loss of MTAP expression occurred exclusively in conjunction with loss of p16 labeling. Both p16 and MTAP IHC showed high concordance with Oncoscan CNV arrays (kappa = 0.952, p < 0.0001, and kappa = 0.787, p < 0.0001 respectively). We recommend combined MTAP and p16 immunohistochemistry to confirm the diagnosis of PM.
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Affiliation(s)
- Bart Vrugt
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland (U.W.); (A.S.); (H.M.)
| | - Michaela B. Kirschner
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.B.K.); (M.M.); (I.O.)
| | - Mayura Meerang
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.B.K.); (M.M.); (I.O.)
| | - Kathrin Oehl
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland (U.W.); (A.S.); (H.M.)
| | - Ulrich Wagner
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland (U.W.); (A.S.); (H.M.)
| | - Alex Soltermann
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland (U.W.); (A.S.); (H.M.)
| | - Holger Moch
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland (U.W.); (A.S.); (H.M.)
| | - Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.B.K.); (M.M.); (I.O.)
| | - Peter J. Wild
- Dr. Senckenberg Institute of Pathology (SIP), University Hospital Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany;
- Wildlab, University Hospital Frankfurt MVZ GmbH, 60596 Frankfurt am Main, Germany
- Frankfurt Institute for Advanced Studies (FIAS), 60438 Frankfurt am Main, Germany
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28
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Fels Elliott DR, Konopka KE, Hrycaj SM, Lagisetty KH, Myers JL, Farver CF, Huang T. Clinically Occult Diffuse Pleural Mesothelioma in Patients Presenting With Spontaneous Pneumothorax. Am J Clin Pathol 2023; 160:322-330. [PMID: 37256702 DOI: 10.1093/ajcp/aqad057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/25/2023] [Indexed: 06/02/2023] Open
Abstract
OBJECTIVES To report histologic features of unsuspected diffuse pleural mesothelioma (DPM) in surgical specimens for pneumothorax and demonstrate how ancillary markers support a diagnosis of malignancy in this context. We explored whether pneumothorax may be a clinical manifestation of mesothelioma in situ (MIS). METHODS A single-institution database search identified patients who underwent surgical resection for spontaneous pneumothorax (n = 229) and/or were diagnosed with DPM (n = 88) from 2000 to 2020. RESULTS Spontaneous pneumothorax without clinical, radiologic, or intraoperative suspicion of mesothelioma was the initial presentation in 2 (2.3%) of 88 patients diagnosed with DPM. This represented 0.9% (2/229) of all patients undergoing surgical management of pneumothorax but accounted for a larger proportion of older patients (12.5% older than 70 years). Immunohistochemistry for BAP-1 and/or MTAP confirmed the diagnosis of DPM in 2 cases. Mesothelioma in situ was identified retrospectively by immunohistochemistry in 1 case of spontaneous pneumothorax from a 77-year-old man who developed invasive DPM 25 months later. No additional cases of MIS were identified in 19 surgical lung resections for spontaneous pneumothorax. CONCLUSIONS Histologic examination of bleb resections with ancillary testing for cases with ambiguous features is essential for detection of early DPM. It is uncertain whether spontaneous pneumothorax may represent a clinical manifestation of MIS.
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Affiliation(s)
| | | | - Steven M Hrycaj
- Department of Pathology, University of Michigan, Ann Arbor, MI, US
| | - Kiran H Lagisetty
- Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI, US
| | - Jeffrey L Myers
- Department of Pathology, University of Michigan, Ann Arbor, MI, US
| | - Carol F Farver
- Department of Pathology, Cleveland Clinic, Cleveland, OH, US
| | - Tao Huang
- Department of Pathology, University of Michigan, Ann Arbor, MI, US
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29
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Masugi Y, Takamatsu M, Tanaka M, Hara K, Inoue Y, Hamada T, Suzuki T, Arita J, Hirose Y, Kawaguchi Y, Nakai Y, Oba A, Sasahira N, Shimane G, Takeda T, Tateishi K, Uemura S, Fujishiro M, Hasegawa K, Kitago M, Takahashi Y, Ushiku T, Takeuchi K, Sakamoto M. Post-operative mortality and recurrence patterns in pancreatic cancer according to KRAS mutation and CDKN2A, p53, and SMAD4 expression. J Pathol Clin Res 2023; 9:339-353. [PMID: 37291757 PMCID: PMC10397380 DOI: 10.1002/cjp2.323] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/18/2023] [Accepted: 03/30/2023] [Indexed: 06/10/2023]
Abstract
Alterations in KRAS, CDKN2A (p16), TP53, and SMAD4 genes have been major drivers of pancreatic carcinogenesis. The clinical course of patients with pancreatic cancer in relation to these driver alterations has not been fully characterised in large populations. We hypothesised that pancreatic carcinomas with different combinations of KRAS mutation and aberrant expression of CDKN2A, p53, and SMAD4 might show distinctive recurrence patterns and post-operative survival outcomes. To test this hypothesis, we utilised a multi-institutional cohort of 1,146 resected pancreatic carcinomas and assessed KRAS mutations by droplet digital polymerase chain reaction and CDKN2A, p53, and SMAD4 expression by immunohistochemistry. Multivariable hazard ratios (HRs) and 95% confidence intervals (CIs) for disease-free survival (DFS) and overall survival (OS) were computed according to each molecular alteration and the number of altered genes using the Cox regression models. Multivariable competing risks regression analyses were conducted to assess the associations of the number of altered genes with specific patterns of recurrence. Loss of SMAD4 expression was associated with short DFS (multivariable HR, 1.24; 95% CI, 1.09-1.43) and OS times (multivariable HR, 1.27; 95% CI, 1.10-1.46). Compared to cases with 0-2 altered genes, cases with three and four altered genes had multivariable HRs for OS of 1.28 (95% CI, 1.09-1.51) and 1.47 (95% CI, 1.22-1.78), respectively (ptrend < 0.001). Patients with an increasing number of altered genes were more likely to have short DFS time (ptrend = 0.003) and to develop liver metastasis (ptrend = 0.006) rather than recurrence at local or other distant sites. In conclusion, loss of SMAD4 expression and an increasing number of altered genes were associated with unfavourable outcomes in pancreatic cancer patients. This study suggests that the accumulation of the four major driver alterations can confer a high metastatic potential to the liver, thereby impairing post-operative survival among patients with pancreatic cancer.
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Affiliation(s)
- Yohei Masugi
- Department of PathologyKeio University School of MedicineTokyoJapan
- Division of Diagnostic PathologyKeio University School of MedicineTokyoJapan
| | - Manabu Takamatsu
- Division of PathologyCancer Institute, Japanese Foundation for Cancer ResearchTokyoJapan
- Department of PathologyCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Mariko Tanaka
- Department of Pathology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Kensuke Hara
- Department of PathologyKeio University School of MedicineTokyoJapan
| | - Yosuke Inoue
- Department of Hepatobiliary and Pancreatic SurgeryCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Tsuyoshi Hamada
- Department of Gastroenterology, Graduate School of MedicineThe University of TokyoTokyoJapan
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Tatsunori Suzuki
- Department of Gastroenterology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Junichi Arita
- Hepato‐Biliary‐Pancreatic Surgery Division, Department of Surgery, Graduate School of MedicineThe University of TokyoTokyoJapan
- Department of Gastroenterological SurgeryAkita University Graduate School of MedicineAkitaJapan
| | - Yuki Hirose
- Department of Hepatobiliary and Pancreatic SurgeryCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Yoshikuni Kawaguchi
- Hepato‐Biliary‐Pancreatic Surgery Division, Department of Surgery, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Yousuke Nakai
- Department of Gastroenterology, Graduate School of MedicineThe University of TokyoTokyoJapan
- Department of Endoscopy and Endoscopic SurgeryThe University of Tokyo HospitalTokyoJapan
| | - Atsushi Oba
- Department of Hepatobiliary and Pancreatic SurgeryCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Naoki Sasahira
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Gaku Shimane
- Department of SurgeryKeio University School of MedicineTokyoJapan
| | - Tsuyoshi Takeda
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Keisuke Tateishi
- Department of Gastroenterology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Sho Uemura
- Department of SurgeryKeio University School of MedicineTokyoJapan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Kiyoshi Hasegawa
- Hepato‐Biliary‐Pancreatic Surgery Division, Department of Surgery, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Minoru Kitago
- Department of SurgeryKeio University School of MedicineTokyoJapan
| | - Yu Takahashi
- Department of Hepatobiliary and Pancreatic SurgeryCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Tetsuo Ushiku
- Department of Pathology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Kengo Takeuchi
- Division of PathologyCancer Institute, Japanese Foundation for Cancer ResearchTokyoJapan
- Department of PathologyCancer Institute Hospital, Japanese Foundation for Cancer ResearchTokyoJapan
| | - Michiie Sakamoto
- Department of PathologyKeio University School of MedicineTokyoJapan
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30
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Chen-Yost HIH, Tjota MY, Gao G, Mitchell O, Kindler H, Segal J, Husain AN, Mueller J, Schulte JJ. Characterizing the distribution of alterations in mesothelioma and their correlation to morphology. Am J Clin Pathol 2023; 160:238-246. [PMID: 37141416 DOI: 10.1093/ajcp/aqad041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/16/2023] [Indexed: 05/06/2023] Open
Abstract
OBJECTIVES Mesothelioma is a lethal disease that arises from the serosal lining of organ cavities. Several recurrent alterations have been observed in pleural and peritoneal -mesotheliomas, including in BAP1, NF2, and CDKN2A. Although specific histopathologic parameters have been correlated with prognosis, it is not as well known whether genetic alterations correlate with histologic findings. METHODS We reviewed 131 mesotheliomas that had undergone next-generation sequencing (NGS) at our institutions after pathologic diagnosis. There were 109 epithelioid mesotheliomas, 18 biphasic mesotheliomas, and 4 sarcomatoid mesotheliomas. All our biphasic and sarcomatoid cases arose in the pleura. Of the epithelioid mesotheliomas, 73 were from the pleura and 36 were from the peritoneum. On average, patients were 66 years of age (range, 26-90 years) and predominantly male (92 men, 39 women). RESULTS The most common alterations identified were in BAP1, CDKN2A, NF2, and TP53. Twelve mesotheliomas did not show a pathogenic alteration on NGS. For epithelioid mesotheliomas in the pleura, the presence of an alteration in BAP1 correlated with low nuclear grade (P = .04), but no correlation was found in the peritoneum (P = .62). Similarly, there was no correlation between the amount of solid architecture in epithelioid mesotheliomas and any alterations in the pleura (P = .55) or peritoneum (P = .13). For biphasic mesotheliomas, cases with either no alteration detected or with an alteration in BAP1 were more likely to be epithelioid predominant (>50% of the tumor, P = .0001), and biphasic mesotheliomas with other alterations detected and no alteration in BAP1 were more likely to be sarcomatoid predominant (>50% of the tumor, P = .0001). CONCLUSIONS This study demonstrates a significant association between morphologic features associated with a better prognosis and an alteration in BAP1.
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Affiliation(s)
| | - Melissa Y Tjota
- Department of Pathology, The University of Chicago Hospitals, Chicago, IL, US
| | - Guimin Gao
- Department of Public Health Sciences, Biostatistics Laboratory & Research Computing Group, The University of Chicago Hospitals, Chicago, IL, US
| | - Owen Mitchell
- Department of Medicine, The University of Chicago Hospitals, Chicago, IL, US
| | - Hedy Kindler
- Department of Medicine, The University of Chicago Hospitals, Chicago, IL, US
| | - Jeremy Segal
- Department of Pathology, The University of Chicago Hospitals, Chicago, IL, US
| | - Aliya N Husain
- Department of Pathology, The University of Chicago Hospitals, Chicago, IL, US
| | - Jeffrey Mueller
- Department of Pathology, The University of Chicago Hospitals, Chicago, IL, US
| | - Jefree J Schulte
- Department of Pathology and Laboratory Medicine, The University of Wisconsin School of Medicine and Public Health, Madison, WI, US
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31
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Yuile A, Satgunaseelan L, Wei JQ, Rodriguez M, Back M, Pavlakis N, Hudson A, Kastelan M, Wheeler HR, Lee A. CDKN2A/B Homozygous Deletions in Astrocytomas: A Literature Review. Curr Issues Mol Biol 2023; 45:5276-5292. [PMID: 37504251 PMCID: PMC10378679 DOI: 10.3390/cimb45070335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023] Open
Abstract
Genomic alterations of CDKN2A and CDKN2B in astrocytomas have been an evolving area of study for decades. Most recently, there has been considerable interest in the effect of CDKN2A and/or CDKN2B (CDKN2A/B) homozygous deletions (HD) on the prognosis of isocitrate dehydrogenase (IDH)-mutant astrocytomas. This is highlighted by the adoption of CDKN2A/B HD as an essential criterion for astrocytoma and IDH-mutant central nervous system (CNS) WHO grade 4 in the fifth edition of the World Health Organisation (WHO) Classification of Central Nervous System Tumours (2021). The CDKN2A and CDKN2B genes are located on the short arm of chromosome 9. CDKN2A encodes for two proteins, p14 and p16, and CDKN2B encodes for p15. These proteins regulate cell growth and angiogenesis. Interpreting the impact of CDKN2A/B alterations on astrocytoma prognosis is complicated by recent changes in tumour classification and a lack of uniform standards for testing CDKN2A/B. While the prognostic impact of CDKN2A/B HD is established, the role of different CDKN2A/B alterations-heterozygous deletions (HeD), point mutations, and promoter methylation-is less clear. Consequently, how these alternations should be incorporated into patient management remains controversial. To this end, we reviewed the literature on different CDKN2A/B alterations in IDH-mutant astrocytomas and their impact on diagnosis and management. We also provided a historical review of the changing impact of CDKN2A/B alterations as glioma classification has evolved over time. Through this historical context, we demonstrate that CDKN2A/B HD is an important negative prognostic marker in IDH-mutant astrocytomas; however, the historical data is challenging to interpret given changes in tumour classification over time, variation in the quality of evidence, and variations in the techniques used to identify CDKN2A/B deletions. Therefore, future prospective studies using uniform classification and detection techniques are required to improve the clinical interpretation of this molecular marker.
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Affiliation(s)
- Alexander Yuile
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
| | - Laveniya Satgunaseelan
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
| | - Joe Q Wei
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
| | - Michael Rodriguez
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
- Department of Pathology, Prince of Wales Hospital, Sydney, NSW 2065, Australia
| | - Michael Back
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
- Department of Radiation Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
| | - Nick Pavlakis
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
| | - Amanda Hudson
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
| | - Marina Kastelan
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
| | - Helen R Wheeler
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
| | - Adrian Lee
- Department of Medical Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Faculty of Medicine and Health, School of Medicine, University of Sydney, Camperdown Campus, Sydney, NSW 2000, Australia
- The Brain Cancer Group, North Shore Private Hospital, Sydney, NSW 2065, Australia
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32
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Motoko S, Yasunori S, Yasuni N. Bile duct adenoma and small-sized small duct type intrahepatic cholangiocarcinoma show distinct differences in genetic alterations, expression of IMP3 and EZH2 and stromal and inflammatory components. Histopathology 2023. [PMID: 37140546 DOI: 10.1111/his.14932] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/11/2023] [Accepted: 04/13/2023] [Indexed: 05/05/2023]
Abstract
AIMS Given that bile duct adenoma was significantly more prevalent in the liver with small duct type intrahepatic cholangiocarcinoma (small duct iCCA), compared to other primary liver carcinomas, we examined the possibility of bile duct adenoma as a precursor of small duct iCCA by analysing genetic alterations and other features in bile duct adenomas. METHODS AND RESULTS Subjects included 33 bile duct adenomas and 17 small-sized (up to 2 cm in diameter) small duct iCCAs. Genetic alterations were examined by direct sequencing for hot-spot regions and immunohistochemical staining. The expression of p16INK4a , EZH2 and IMP3 and stromal and inflammatory components were also examined. Genetic alterations examined including BRAF were not detected in bile duct adenomas, whereas genetic alterations of p53 (47%), ARID1A (41%), PBRM1 (12%), MTAP (12%), IDH1 (6%), KRAS (6%) and TERT promoter (6%) were detected in 16 small-sized small duct iCCA (94%) (P < 0.01). The expression of IMP3 and EZH2 was not detected in bile duct adenomas, whereas it was detected in most small duct iCCA (94%) (P < 0.01). Immature stroma and neutrophilic infiltration were significantly more prevalent in small duct iCCA, compared to bile duct adenoma (P < 0.01). CONCLUSION Bile duct adenomas and small-sized small duct iCCAs show distinct differences in genetic alterations, expression of IMP3 and EZH2 and stromal and inflammatory components. There was no evidence suggesting that bile duct adenoma is a precursor of small duct iCCA. Immunohistochemical staining for IMP3, EZH2, p53, ARID1A and MTAP may be useful for differential diagnosis between bile duct adenomas and small duct iCCAs.
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Affiliation(s)
- Sasaki Motoko
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Sato Yasunori
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Nakanuma Yasuni
- Division of Pathology, Fukui Saiseikai Hospital, Fukui, Japan
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33
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Mangiante L, Alcala N, Sexton-Oates A, Di Genova A, Gonzalez-Perez A, Khandekar A, Bergstrom EN, Kim J, Liu X, Blazquez-Encinas R, Giacobi C, Le Stang N, Boyault S, Cuenin C, Tabone-Eglinger S, Damiola F, Voegele C, Ardin M, Michallet MC, Soudade L, Delhomme TM, Poret A, Brevet M, Copin MC, Giusiano-Courcambeck S, Damotte D, Girard C, Hofman V, Hofman P, Mouroux J, Cohen C, Lacomme S, Mazieres J, de Montpreville VT, Perrin C, Planchard G, Rousseau N, Rouquette I, Sagan C, Scherpereel A, Thivolet F, Vignaud JM, Jean D, Ilg AGS, Olaso R, Meyer V, Boland-Auge A, Deleuze JF, Altmuller J, Nuernberg P, Ibáñez-Costa A, Castaño JP, Lantuejoul S, Ghantous A, Maussion C, Courtiol P, Hernandez-Vargas H, Caux C, Girard N, Lopez-Bigas N, Alexandrov LB, Galateau-Salle F, Foll M, Fernandez-Cuesta L. Multiomic analysis of malignant pleural mesothelioma identifies molecular axes and specialized tumor profiles driving intertumor heterogeneity. Nat Genet 2023; 55:607-618. [PMID: 36928603 PMCID: PMC10101853 DOI: 10.1038/s41588-023-01321-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/26/2023] [Indexed: 03/17/2023]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer with rising incidence and challenging clinical management. Through a large series of whole-genome sequencing data, integrated with transcriptomic and epigenomic data using multiomics factor analysis, we demonstrate that the current World Health Organization classification only accounts for up to 10% of interpatient molecular differences. Instead, the MESOMICS project paves the way for a morphomolecular classification of MPM based on four dimensions: ploidy, tumor cell morphology, adaptive immune response and CpG island methylator profile. We show that these four dimensions are complementary, capture major interpatient molecular differences and are delimited by extreme phenotypes that-in the case of the interdependent tumor cell morphology and adapted immune response-reflect tumor specialization. These findings unearth the interplay between MPM functional biology and its genomic history, and provide insights into the variations observed in the clinical behavior of patients with MPM.
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Affiliation(s)
- Lise Mangiante
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
- Department of Medicine, Stanford University, Stanford, CA, USA
| | - Nicolas Alcala
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Alexandra Sexton-Oates
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Alex Di Genova
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
- Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Rancagua, Chile
- Centro de Modelamiento Matemático UMI-CNRS 2807, Universidad de Chile, Santiago, Chile
| | - Abel Gonzalez-Perez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Cáncer, Instituto de Salud Carlos III, Madrid, Spain
| | - Azhar Khandekar
- Department of Cellular and Molecular Medicine, Department of Bioengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | - Erik N Bergstrom
- Department of Cellular and Molecular Medicine, Department of Bioengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | - Jaehee Kim
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
- Department of Computational Biology, Cornell University, Ithaca, NY, USA
| | - Xiran Liu
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Ricardo Blazquez-Encinas
- Maimonides Biomedical Research Institute of Cordoba, Córdoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain
| | - Colin Giacobi
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Nolwenn Le Stang
- UMR INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, MESOPATH-MESOBANK, Department of Biopathology, Cancer Centre Léon Bérard, Lyon, France
| | - Sandrine Boyault
- Cancer Genomic Platform, Translational Research and Innovation Department, Centre Léon Bérard, Lyon, France
| | - Cyrille Cuenin
- EpiGenomics and Mechanisms Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Severine Tabone-Eglinger
- UMR INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, MESOPATH-MESOBANK, Department of Biopathology, Cancer Centre Léon Bérard, Lyon, France
| | - Francesca Damiola
- UMR INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, MESOPATH-MESOBANK, Department of Biopathology, Cancer Centre Léon Bérard, Lyon, France
| | - Catherine Voegele
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Maude Ardin
- Tumor Escape, Resistance and Immunity Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Marie-Cecile Michallet
- Tumor Escape, Resistance and Immunity Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Lorraine Soudade
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Tiffany M Delhomme
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Arnaud Poret
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | | | - Marie-Christine Copin
- University of Lille, Centre Hospitalier Universitaire Lille, Institut de Pathologie, Tumorothèque du Centre de Référence Régional en Cancérologie, Lille, France
| | | | - Diane Damotte
- Centre de Recherche des Cordeliers, Inflammation, Complement and Cancer Team, Sorbonne Université, INSERM, Université de Paris, Paris, France
- Department of Pathology, Hôpitaux Universitaire Paris Centre, Tumorothèque/CRB Cancer, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Cecile Girard
- Tumorothèque Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Veronique Hofman
- Université Côte d'Azur, Laboratory of Clinical and Experimental Pathology, Nice Center Hospital, FHU OncoAge, Biobank BB-0033-00025 and IRCAN Inserm U1081/CNRS 7284, Nice, France
| | - Paul Hofman
- Université Côte d'Azur, Laboratory of Clinical and Experimental Pathology, Nice Center Hospital, FHU OncoAge, Biobank BB-0033-00025 and IRCAN Inserm U1081/CNRS 7284, Nice, France
| | - Jérôme Mouroux
- Université Côte d'Azur, Department of Thoracic Surgery, Nice Center Hospital, FHU OncoAge and IRCAN Inserm U1081/CNRS 7284, Nice, France
| | - Charlotte Cohen
- Department of Thoracic Surgery, FHU OncoAge, Nice Pasteur Hospital, Université Côte d'Azur, Nice, France
| | - Stephanie Lacomme
- Nancy Regional University Hospital, Centre Hospitalier Régional Universitaire, CRB BB-0033-00035, INSERM U1256, Nancy, France
| | - Julien Mazieres
- Toulouse University Hospital, Université Paul Sabatier, Toulouse, France
| | | | - Corinne Perrin
- Hospices Civils de Lyon, Institut de Pathologie, Centre de Ressources Biologiques des HCL, Tissu-Tumorothèque Est, Lyon, France
| | - Gaetane Planchard
- Centre Hospitalier Universitaire de Caen, MESOPATH Regional Center, Caen, France
| | - Nathalie Rousseau
- Centre Hospitalier Universitaire de Caen, MESOPATH Regional Center, Caen, France
| | - Isabelle Rouquette
- Centre de Pathologie des Côteaux, Centre de Ressources Biologiques (CRB Cancer), IUCT Oncopole, Toulouse, France
| | - Christine Sagan
- Tumorothèque Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Arnaud Scherpereel
- University of Lille, Centre Hospitalier Universitaire Lille, INSERM, OncoThAI, NETMESO Network, Lille, France
| | - Francoise Thivolet
- Hospices Civils de Lyon, Institut de Pathologie, Centre de Ressources Biologiques des HCL, Tissu-Tumorothèque Est, Lyon, France
| | - Jean-Michel Vignaud
- Department of Biopathology, Centre Hospitalier Régional Universitaire de Nancy, Vandoeuvre-les-Nancy, France
- BRC, BB-0033-00035, Centre Hospitalier Régional Universitaire de Nancy, Vandoeuvre-les-Nancy, France
| | - Didier Jean
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Functional Genomics of Solid Tumors, Paris, France
| | | | - Robert Olaso
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | - Vincent Meyer
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | - Anne Boland-Auge
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | - Jean-Francois Deleuze
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | | | | | - Alejandro Ibáñez-Costa
- Maimonides Biomedical Research Institute of Cordoba, Córdoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain
| | - Justo P Castaño
- Maimonides Biomedical Research Institute of Cordoba, Córdoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain
| | - Sylvie Lantuejoul
- UMR INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, MESOPATH-MESOBANK, Department of Biopathology, Cancer Centre Léon Bérard, Lyon, France
- Grenoble Alpes University, Saint-Martin-d'Hères, France
| | - Akram Ghantous
- EpiGenomics and Mechanisms Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France
| | | | | | - Hector Hernandez-Vargas
- UMR INSERM 1052, CNRS 5286, UCBL1, Centre Léon Bérard, Lyon, France
- Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Christophe Caux
- Tumor Escape, Resistance and Immunity Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Nicolas Girard
- Institut Curie, Institut du Thorax Curie Montsouris, Paris, France
- Université de Versailles Saint-Quentin-en-Yvelines, Université Paris-Saclay, Versailles, France
| | - Nuria Lopez-Bigas
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Cáncer, Instituto de Salud Carlos III, Madrid, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Ludmil B Alexandrov
- Department of Cellular and Molecular Medicine, Department of Bioengineering and Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | - Françoise Galateau-Salle
- UMR INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, MESOPATH-MESOBANK, Department of Biopathology, Cancer Centre Léon Bérard, Lyon, France
| | - Matthieu Foll
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France.
| | - Lynnette Fernandez-Cuesta
- Rare Cancers Genomics Team, Genomic Epidemiology Branch, International Agency for Research on Cancer/World Health Organization, Lyon, France.
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Dumoulin DW, Bironzo P, Passiglia F, Scagliotti GV, Aerts JGJV. Rare thoracic cancers: a comprehensive overview of diagnosis and management of small cell lung cancer, malignant pleural mesothelioma and thymic epithelial tumours. Eur Respir Rev 2023; 32:220174. [PMID: 36754434 PMCID: PMC9910338 DOI: 10.1183/16000617.0174-2022] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/18/2022] [Indexed: 02/10/2023] Open
Abstract
Despite the progress in outcomes seen with immunotherapy in various malignancies, including nonsmall cell lung cancer, the benefits are less in small cell lung cancer, malignant pleural mesothelioma and thymic epithelial tumours. New effective treatment options are needed, guided via more in-depth insights into the pathophysiology of these rare malignancies. This review comprehensively presents an overview of the clinical presentation, diagnostic tools, staging systems, pathophysiology and treatment options for these rare thoracic cancers. In addition, opportunities for further improvement of therapies are discussed.
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Affiliation(s)
- Daphne W Dumoulin
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Paolo Bironzo
- Department of Oncology, University of Torino, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Francesco Passiglia
- Department of Oncology, University of Torino, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Giorgio V Scagliotti
- Department of Oncology, University of Torino, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Joachim G J V Aerts
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
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Kommoss FKF, Mar LM, Howitt BE, Hanley K, Turashvilli G, Buslei R, Irving JA, Dickson BC, Koelsche C, Sinn HP, Schirmacher P, von Deimling A, Chiang S, McCluggage WG, Croce S, Stewart CJR, Lee CH. High-Grade Endometrial Stromal Sarcomas With YWHAE::NUTM2 Gene Fusion Exhibit Recurrent CDKN2A Alterations and Absence of p16 Staining is a Poor Prognostic Marker. Mod Pathol 2023; 36:100044. [PMID: 36788095 DOI: 10.1016/j.modpat.2022.100044] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/14/2022] [Accepted: 10/18/2022] [Indexed: 01/11/2023]
Abstract
High-grade endometrial stromal sarcomas (HGESSs) are aggressive uterine tumors harboring oncogenic fusion proteins. We performed a molecular study of 36 HGESSs with YWHAE::NUTM2 gene fusion, assessing co-occurring genetic events, and showed that these tumors frequently harbor recurrent events involving the CDKN2A locus on chromosome 9p. Using array-based copy number profiling and CDKN2A fluorescence in situ hybridization, we identified homozygous and hemizygous deletions of CDKN2A in 18% and 14% of tumors (n = 22 analyzed), respectively. While all YWHAE-rearranged HGESSs with retained disomy for CDKN2A were immunohistochemically positive for p16INK4 (p16), all tumors with homozygous deletion of CDKN2A showed complete absence of p16 staining. Of the 2 tumors with a hemizygous deletion of CDKN2A, 1 showed diffuse and strong p16 positivity, whereas the other showed complete absence of staining. In the p16-negative case, we did not find intragenic mutations or DNA promoter methylation to explain the p16 protein loss, implicating other mechanisms in the regulation of protein expression. In our cohort, subclonal or complete absence of p16 staining was associated with worse overall survival compared with positive p16 staining (1-year overall survival: 28.6% vs 90.7%, respectively; n = 32; P < .001), with all 7 patients in the p16-negative group having succumbed to their disease within 2 years of diagnosis. Our results suggested CDKN2A alterations as a cooperative driver of tumorigenesis in a subset of HGESSs with the YWHAE::NUTM2 gene fusion and showed p16 to be a potential prognostic marker.
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Affiliation(s)
- Felix K F Kommoss
- Department of Pathology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Lisa-Marie Mar
- Department of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Brooke E Howitt
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Krisztina Hanley
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Atlanta, Georgia
| | - Gulisa Turashvilli
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Atlanta, Georgia
| | - Rolf Buslei
- Institute of Pathology, Sozialstiftung Bamberg, Bamberg, Germany
| | - Julie A Irving
- Department of Laboratory Medicine, Pathology, and Medical Genetics, Royal Jubilee Hospital, Victoria, British Columbia
| | - Brendan C Dickson
- Department of Pathology and Laboratory Medicine, Sinai Health System and University of Toronto, Toronto, Ontario, Canada
| | - Christian Koelsche
- Department of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Hans-Peter Sinn
- Department of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Peter Schirmacher
- Department of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Andreas von Deimling
- Department of Neuropathology, Heidelberg University Hospital, CCU Neuropathology DKFZ, Heidelberg, Germany
| | - Sarah Chiang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health, and Social Care Trust, Belfast, United Kingdom
| | - Sabrina Croce
- Institute Bergonié, Comprehensive Cancer Center, Bordeaux, France
| | - Colin J R Stewart
- Department of Histopathology, King Edward Memorial Hospital and School for Women's and Infants' Health, University of Western Australia, Perth, Western Australia, Australia
| | - Cheng-Han Lee
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
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36
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Evaluation of MTAP and p16 immunohistochemical deficiency as surrogate marker for CDKN2A/B homozygous deletion in gliomas. Pathology 2023; 55:466-477. [PMID: 37032198 DOI: 10.1016/j.pathol.2023.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/14/2022] [Accepted: 01/07/2023] [Indexed: 03/17/2023]
Abstract
Homozygous deletion (HD) of the CDKN2A/B locus has emerged as an unfavourable prognostic marker in diffuse gliomas, both IDH-mutant and IDH-wild-type. Testing for CDKN2A/B deletions can be performed by a variety of approaches, including copy number variation (CNV) analysis based on gene array analysis, next generation sequencing (NGS) or fluorescence in situ hybridisation (FISH), but questions remain regarding the accuracy of testing modalities. In this study, we assessed: (1) the utility of S-methyl-5'-thioadenosine phosphorylase (MTAP) and cellular tumour suppressor protein pl61NK4a (p16) immunostainings as surrogate markers for CDKN2A/B HD in gliomas, and (2) the prognostic value of MTAP, across different histological tumour grades and IDH mutation status. One hundred consecutive cases of diffuse and circumscribed gliomas (Cohort 1) were collected, in order to correlate MTAP and p16 expression with the CDKN2A/B status in the CNV plot of each tumour. IDH1 R132H, ATRX and MTAP immunohistochemistry was performed on next generation tissue microarrays (ngTMAs) of 251 diffuse gliomas (Cohort 2) for implementing survival analysis. Complete loss of MTAP and p16 by immunohistochemistry was 100% and 90% sensitive as well as 97% and 89% specific for CDKN2A/B HD, respectively, as identified on CNV plot. Only two cases (2/100) with MTAP and p16 loss of expression did not demonstrate CDKN2A/B HD in CNV plot; however, FISH analysis confirmed the HD for CDKN2A/B. Moreover, MTAP deficiency was associated with shortened survival in IDH-mutant astrocytomas (n=75; median survival 61 vs 137 months; p<0.0001), IDH-mutant oligodendrogliomas (n=59; median survival 41 vs 147 months; p<0.0001) and IDH-wild-type gliomas (n=117; median survival 13 vs 16 months; p=0.011). In conclusion, MTAP immunostaining is an important complement for diagnostic work-up of gliomas, because of its excellent correlation with CDKN2A/B status, robustness, rapid turnaround time and low costs, and provides significant prognostic value in IDH-mutant astrocytomas and oligodendrogliomas, while p16 should be used cautiously.
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37
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Li Y, Yang SR, Chen YB, Adusumilli PS, Bialik A, Bodd FM, Ladanyi M, Lopardo J, Offin MD, Rusch VW, Travis WD, Zauderer MG, Chang JC, Sauter JL. Neurofibromatosis Type 2-Yes-Associated Protein and Transcriptional Coactivator With PDZ-Binding Motif Dual Immunohistochemistry Is a Reliable Marker for the Detection of Neurofibromatosis Type 2 Alterations in Diffuse Pleural Mesothelioma. Mod Pathol 2023; 36:100030. [PMID: 36788094 PMCID: PMC10428583 DOI: 10.1016/j.modpat.2022.100030] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/22/2022] [Accepted: 09/21/2022] [Indexed: 01/11/2023]
Abstract
Neurofibromatosis type 2 (NF2) loss occurs in approximately 30% to 50% of diffuse pleural mesothelioma (DPM) with accumulation of yes-associated protein (YAP) 1 and transcriptional coactivator with PDZ-binding motif (TAZ) in tumor nuclei. NF2 and YAP/TAZ represent potential therapeutic targets. We investigated the performance of NF2-YAP/TAZ dual immunohistochemistry (IHC) in identifying DPM that harbors NF2 alterations and in distinguishing DPM from benign mesothelial proliferations. NF2-YAP/TAZ IHC was subsequently performed in a Discovery cohort of DPMs with (n = 10) or without (n = 10) NF2 alterations detected by next-generation sequencing (NGS) and 9 benign cases. The cutoff values for loss of NF2 expression and YAP/TAZ overexpression using IHC were determined in the Discovery cohort. The performance characteristics of NF2-YAP/TAZ IHC were investigated in a Validation cohort (20 DPMs and 10 benign cases). In the Discovery cohort, all DPMs with NF2 alterations using NGS showed NF2 IHC scores of <2, whereas all NF2-wild-type DPMs showed scores of ≥2. NF2-altered DPMs had significantly higher YAP/TAZ H-scores (P < .001) than NF2-wild-type DPM and benign pleura (median H-scores: 237.5 [range, 185-275], 130.0 [range, 40-225], and 10.0 [range, 0-75], respectively). NF2-YAP/TAZ IHC demonstrated 95.2% sensitivity, 100% specificity, 100% positive predictive value, and 95% negative predictive value for detecting NF2 alterations in DPM (n = 40) with NGS as the gold standard and 87.5% sensitivity and 100% specificity for distinguishing DPM (n = 40) from benign mesothelial proliferations (n = 19). NF2-YAP/TAZ IHC has a high sensitivity and specificity for detecting NF2 alterations in DPM and a high specificity for malignancy, highlighting potential utility for guiding NF2-targeted therapies and distinguishing DPM from benign mimics.
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Affiliation(s)
- Yan Li
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, People's Republic of China
| | - Soo-Ryum Yang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ying-Bei Chen
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Prasad S Adusumilli
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ann Bialik
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Francis M Bodd
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jessica Lopardo
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Michael D Offin
- Thoracic Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Valerie W Rusch
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - William D Travis
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marjorie G Zauderer
- Thoracic Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Jason C Chang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jennifer L Sauter
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
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Sejben A, Pancsa T, Tiszlavicz L, Furák J, Paróczai D, Zombori T. Highlighting the immunohistochemical differences of malignant mesothelioma subtypes via case presentations. Thorac Cancer 2023; 14:857-863. [PMID: 36808895 PMCID: PMC10067356 DOI: 10.1111/1759-7714.14827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
Malignant mesothelioma (MM) is a rare tumor of mesothelial cells, with an increasing incidence both in developed and developing countries. MM has three major histological subtypes, in order of frequency, according to the World Health Organization (WHO) Classification of 2021: epithelioid, biphasic, and sarcomatoid MM. Distinction may be a challenging task for the pathologist, due to the unspecific morphology. Here, we present two cases of diffuse MM subtypes to emphasize the immunohistochemical (IHC) differences, and to facilitate diagnostic difficulties. In our first case of epithelioid mesothelioma, the neoplastic cells showed cytokeratin 5/6 (CK5/6), calretinin, and Wilms-tumor-1 (WT1) expression, while remaining negative with thyroid transcription factor-1 (TTF-1). BRCA1 associated protein-1 (BAP1) negativity was seen in the neoplastic cells' nucleus, reflecting loss of the tumor suppressor gene. In the second case of biphasic mesothelioma, expression of epithelial membrane antigen (EMA), CKAE1/AE3, and mesothelin was observed, while WT1, BerEP4, CD141, TTF1, p63, CD31, calretinin, and BAP1 expressions were not detected. Due to the absence of specific histological features, the differentiation between MM subtypes could be a challenging task. In routine diagnostic work, IHC may be the proper method in distinction. According to our results and literature data, CK5/6, mesothelin, calretinin, and Ki-67 should be applied in subclassification.
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Affiliation(s)
- Anita Sejben
- Department of Pathology, University of Szeged, Szeged, Hungary
| | - Tamás Pancsa
- Department of Pathology, University of Szeged, Szeged, Hungary
| | | | - József Furák
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Dóra Paróczai
- Department of Pulmonology, University of Szeged, Deszk, Hungary
| | - Tamás Zombori
- Department of Pathology, University of Szeged, Szeged, Hungary
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Lou L, Li J, Qin M, Tian X, Guo W, Li Y. Correlation of MTAP immunohistochemical deficiency with CDKN2A homozygous deletion and clinicopathological features in pleomorphic xanthoastrocytoma. Brain Tumor Pathol 2023; 40:15-25. [PMID: 36550382 DOI: 10.1007/s10014-022-00447-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Pleomorphic xanthoastrocytoma (PXA) is a rare tumor ranging from World Health Organization (WHO) grades 2-3 and can potentially recur and metastasize throughout the central nervous system (CNS). Cyclin-dependent kinase inhibitor 2A/B (CDKN2A/B) deletion is a frequent genomic alteration of PXA. Methylthioadenosine phosphorylase (MTAP) immunohistochemistry is a promising surrogate marker for CDKN2A homozygous deletion in different cancers but has not been examined in PXA. Therefore, we performed CDKN2A fluorescence in situ hybridization and MTAP immunohistochemistry on specimens from 23 patients with CNS WHO grades 2 (n = 10) and 3 (n = 13) PXAs, including specimens from primary and recurrent tumors, and determined whether MTAP immunohistochemistry correlated with CDKN2A homozygous deletion and clinicopathological features. CDKN2A homozygous deletion was detected in 30% (3/10) and 76.9% (10/13) of CNS WHO grades 2 and 3 PXAs, respectively. In addition, MTAP loss was inconsistent with CDKN2A homozygous deletion (sensitivity = 86.7%, specificity = 100%). Furthermore, CDKN2A homozygous deletion was correlated with WHO grade (p = 0.026) and the Ki-67 labeling index (p = 0.037). Therefore, MTAP immunostaining can be a suitable surrogate marker for CDKN2A homozygous deletions in PXAs, and CDKN2A homozygous deletions may be an important prognostic factor for PXAs.
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Affiliation(s)
- Lei Lou
- Department of Pathology, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Jiajun Li
- School of Pharmacy, Hebei Medical University, 361 Zhongshan Eastern Road, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Manman Qin
- Department of Pathology, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Xiaoxi Tian
- Department of Pathology, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Wenli Guo
- Department of Pathology, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Yuehong Li
- Department of Pathology, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei, 050017, People's Republic of China.
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40
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Zhu M, Lu Z, Guo H, Gu X, Wei D, Zhang Z. Diagnostic value of combination of biomarkers for malignant pleural mesothelioma: a systematic review and meta-analysis. Front Oncol 2023; 13:1136049. [PMID: 37114132 PMCID: PMC10126368 DOI: 10.3389/fonc.2023.1136049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/10/2023] [Indexed: 04/29/2023] Open
Abstract
Introduction Early-stage accurate diagnosis of malignant pleural mesothelioma (MPM) has always been a formidable challenge. DNA and protein as biomarkers for the diagnosis of MPM have received considerable attention, and yet the outcomes are inconsistent. Methods In this study, a systematic search employing PubMed, EMBASE, and Cochrane Library to identify relevant studies from the first day of databases to October 2021. Moreover, we adopt the QUADAS-2 to evaluate the quality of eligible studies and Stata 15.0 and Review Manager 5.4 software programs to perform the meta-analysis. Additionally, bioinformatics analysis was performed at GEPIA for the purpose of exploring relationship between related genes and the survival time of MPM patients. Results We included 15 studies at the DNA level and 31studies at the protein level in this meta-analysis. All results demonstrated that the diagnostic accuracy of the combination of MTAP + Fibulin-3 was the highest with the SEN 0.81 (95% CI: 0.67, 0.89) and the SPE 0.95 (95% CI: 0.90, 0.97). And the bioinformatics analysis indicated that the higher MTAP gene expression level was beneficial to enhance the survival time of MPM patients. Discussion Nonetheless, as a result of the limitations of the included samples, it may be necessary to conduct additional research before drawing conclusions. Systematic review registration https://inplasy.com/inplasy-2022-10-0043/, identifier INPLASY2022100043.
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Affiliation(s)
- Mucheng Zhu
- Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Zhenhua Lu
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Hao Guo
- School of Medicine, Xiamen University, Xiamen, China
| | - Xiaoting Gu
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Defang Wei
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Zhengyi Zhang
- Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- *Correspondence: Zhengyi Zhang,
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Chen Y, Du X, Gao Y, Wu H, Zhao H, Su Y. Methylthioadenosine Phosphorylase and Breast Cancer 1 Protein-Associated Protein 1 as Biomarkers for the Peritoneal Mesothelioma. Cancer Control 2023; 30:10732748231220805. [PMID: 38092371 PMCID: PMC10722924 DOI: 10.1177/10732748231220805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 10/17/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023] Open
Abstract
OBJECTIVES Combination of Breast Cancer 1 protein-associated protein 1 (BAP1) and methylthioadenosine phosphorylase (MTAP) in the peritoneal mesothelioma (PeM) has yet to be explored. We aim to assess the diagnostic value of combined BAP1 and MTAP to distinguish biphasic mesothelioma (BM) from epithelioid mesothelioma (EM) with reactive stroma in peritoneum, as well as its prognostic value in PeM. METHODS This is a retrospective study from June 2014 to December 2021. This study included 18 cases of BM and 27 cases of EM with reactive stroma, excluded sarcomatoid, and EM without reactive stroma cases, and clinicopathological information was collected. The associations between MTAP and BAP1 levels and clinicopathological features or prognosis were analyzed. Clinical follow-up data were reviewed to correlate with pathological prognostic factors using Kaplan-Meier estimator and univariate/multivariate Cox proportional hazards regression models. RESULTS Loss/decrease of BAP1/MTAP was observed in 6 (33.3%) BM cases and 12 (44.4%) EM cases. In 5 (27.8%) cases, loss of or decreased BAP1/MTAP expression was observed in both EC and SC of BM. BAP1/MTAP loss/decrease was observed in 12 (44.4%) cases of only EC of EM but not in reactive stroma. Compared with histology alone, a combination of BAP1 and MTAP immunohistochemistry (IHC) in spindled PeM provides a more objective mean to distinguish BM from EM with reactive stroma. Loss/decrease of BAP1/MTAP was associated with peritoneal cancer index (PCI) score (P = 0.047) and completeness of cytoreduction (CC) score (P = 0.038). BM patients have worse overall survival (OS) than EM with reactive stroma (P = 0 .007). CONCLUSIONS Combination of BAP1/MTAP by IHC is helpful for differential diagnosis of peritoneal BM from EM with reactive stroma. Nevertheless, BAP1/MTAP may help to evaluate the biological behavior of PeM.
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Affiliation(s)
- Yue Chen
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xuemei Du
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Ying Gao
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Heliang Wu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Ninth School of Clinical Medicine, Peking University, Beijing, China
| | - Hongyu Zhao
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yandong Su
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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Chapel DB, Hornick JL, Barlow J, Bueno R, Sholl LM. Clinical and molecular validation of BAP1, MTAP, P53, and Merlin immunohistochemistry in diagnosis of pleural mesothelioma. Mod Pathol 2022; 35:1383-1397. [PMID: 35459788 PMCID: PMC9529776 DOI: 10.1038/s41379-022-01081-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/16/2022] [Accepted: 03/28/2022] [Indexed: 12/28/2022]
Abstract
BAP1 and MTAP immunostains play an important role in diagnosis of mesothelioma, but additional markers are needed to increase sensitivity. We analyzed 84 pleural mesotheliomas (51 epithelioid, 27 biphasic, 6 sarcomatoid) by a hybrid-capture next-generation sequencing (NGS) panel including complete coverage of coding and splicing regions for BAP1, CDKN2A/MTAP, NF2, and TP53 and correlated molecular findings with diagnostic immunostains for BAP1, MTAP, Merlin, and p53, respectively. Fifty-seven reactive mesothelial proliferations served as benign comparators. Loss of BAP1, MTAP, and Merlin protein expression were, respectively, 54%, 46%, and 52% sensitive and 100% specific for mesothelioma. Two-marker immunopanels of BAP1 + MTAP, BAP1 + Merlin, and MTAP + Merlin were 79%, 85%, and 71% sensitive for mesothelioma, while a three-marker immunopanel of BAP1 + MTAP + Merlin was 90% sensitive. Diffuse (mutant-pattern) p53 immunostaining was seen in only 6 (7%) tumors but represented the only immunohistochemical abnormality in 2 cases. Null-pattern p53 was not specific for malignancy. An immunopanel of BAP1 + MTAP + Merlin + p53 was 93% sensitive for mesothelioma, and panel NGS detected a pathogenic alteration in BAP1, MTAP, NF2, and/or TP53 in 95%. Together, 83 (99%) of 84 tumors showed a diagnostic alteration by either immunohistochemistry or panel NGS. Adding Merlin to the standard BAP1 + MTAP immunopanel increases sensitivity for mesothelioma without sacrificing specificity. p53 immunohistochemistry and panel NGS with complete coverage of BAP1, CDKN2A/MTAP, TP53, and NF2 may be useful in diagnostically challenging cases.
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Affiliation(s)
- David B Chapel
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, 02115, USA.
- Department of Pathology, University of Michigan - Michigan Medicine, Ann Arbor, MI, 48109, USA.
| | - Jason L Hornick
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Julianne Barlow
- Department of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Raphael Bueno
- Department of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Center for Advanced Molecular Diagnostics, Brigham and Women's Hospital, Boston, MA, 02115, USA
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Challenges and limitation of MTAP immunohistochemistry in diagnosing desmoplastic mesothelioma/sarcomatoid pleural mesothelioma with desmoplastic features. Ann Diagn Pathol 2022; 60:152004. [DOI: 10.1016/j.anndiagpath.2022.152004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/12/2022] [Accepted: 06/27/2022] [Indexed: 12/24/2022]
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Yang K, Yang T, Yang T, Yuan Y, Li F. Unraveling tumor microenvironment heterogeneity in malignant pleural mesothelioma identifies biologically distinct immune subtypes enabling prognosis determination. Front Oncol 2022; 12:995651. [PMID: 36237331 PMCID: PMC9552848 DOI: 10.3389/fonc.2022.995651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/14/2022] [Indexed: 11/30/2022] Open
Abstract
Background Malignant pleural mesothelioma (MPM) is a rare and intractable disease exhibiting a remarkable intratumoral heterogeneity and dismal prognosis. Although immunotherapy has reshaped the therapeutic strategies for MPM, patients react with discrepant responsiveness. Methods Herein, we recruited 333 MPM patients from 5 various cohorts and developed an in-silico classification system using unsupervised Non-negative Matrix Factorization and Nearest Template Prediction algorithms. The genomic alterations, immune signatures, and patient outcomes were systemically analyzed across the external TCGA-MESO samples. Machine learning-based integrated methodology was applied to identify a gene classifier for clinical application. Results The gene expression profiling-based classification algorithm identified immune-related subtypes for MPMs. In comparison with the non-immune subtype, we validated the existence of abundant immunocytes in the immune subtype. Immune-suppressed MPMs were enriched with stroma fraction, myeloid components, and immunosuppressive tumor-associated macrophages (TAMs) as well exhibited increased TGF-β signature that informs worse clinical outcomes and reduced efficacy of anti-PD-1 treatment. The immune-activated MPMs harbored the highest lymphocyte infiltration, growing TCR and BCR diversity, and presented the pan-cancer immune phenotype of IFN-γ dominant, which confers these tumors with better drug response when undergoing immune checkpoint inhibitor (ICI) treatment. Genetically, BAP1 mutation was most commonly found in patients of immune-activated MPMs and was associated with a favorable outcome in a subtype-specific pattern. Finally, a robust 12-gene classifier was generated to classify MPMs with high accuracy, holding promise value in predicting patient survival. Conclusions We demonstrate that the novel classification system can be exploited to guide the identification of diverse immune subtypes, providing critical biological insights into the mechanisms driving tumor heterogeneity and responsible for cancer-related patient prognoses.
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Affiliation(s)
- Kaidi Yang
- Department of Oncology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
- *Correspondence: Kaidi Yang, ; Fang Li,
| | - Tongxin Yang
- Department of Oncology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
| | - Tao Yang
- Department of Oncology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
| | - Ye Yuan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fang Li
- Department of Oncology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
- *Correspondence: Kaidi Yang, ; Fang Li,
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A Diagnostic Approach to Paratesticular Lesions with Tubulopapillary Architecture: A Series of 16 Serous Borderline Tumors/Low-Grade Serous Carcinoma & 14 Well-Differentiated Papillary Mesothelial Tumors and Mesothelioma. Hum Pathol 2022; 128:31-47. [PMID: 35809685 DOI: 10.1016/j.humpath.2022.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 11/22/2022]
Abstract
As there is limited literature on paratesticular tumors of müllerian and mesothelial origin, we reviewed archived cases of serous borderline tumors (n=15), low-grade serous carcinoma (n=1), well-differentiated papillary mesothelial tumors (WDPMT; n=2), and mesothelioma (n=12), for relevant clinicopathologic features. Molecular profiling data from the American Association for Cancer Research (AACR) GENIE registry was accessed for 8 additional patients with testicular mesothelioma. For tumors of mesothelial origin, the median age at surgical excision was 62 years, median size was 4.5 cm, and they consistently exhibited positivity for mesothelial markers (CK5/6, calretinin, WT1 and D2-40). Recurrent alterations of the NF2 gene were identified in 3 of 8 (38%) patients, and alterations of BAP1 and CDKN2A were relatively infrequent. While one patient with WDPMT had a recurrence, a second patient with WDPMT progressed to a biphasic mesothelioma two years after initial resection. For tumors of müllerian origin, the median age at surgical excision was 45 years, the median size was 2.5 cm, and these exhibited consistent positivity for ER, WT1 and PAX8. Although no recurrences were documented in patients with serous borderline tumors, a single patient with a low-grade serous carcinoma developed widely metastatic disease and died of disease-related complications. Our study emphasizes the need for close clinical follow-up in patients with WDPMT and highlights the prognostic significance of documenting invasive behavior in tumors of müllerian origin as they can have an aggressive clinical course. Finally, our results suggest that NF2 alterations may play an important role in the pathogenesis of testicular mesothelioma.
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Jurmeister P, Leitheiser M, Wolkenstein P, Klauschen F, Capper D, Brcic L. DNA methylation-based machine learning classification distinguishes pleural mesothelioma from chronic pleuritis, pleural carcinosis, and pleomorphic lung carcinomas. Lung Cancer 2022; 170:105-113. [PMID: 35749951 DOI: 10.1016/j.lungcan.2022.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/04/2022] [Accepted: 06/12/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Our goal was to evaluate the diagnostic value of DNA methylation analysis in combination with machine learning to differentiate pleural mesothelioma (PM) from important histopathological mimics. MATERIAL AND METHODS DNA methylation data of PM, lung adenocarcinomas, lung squamous cell carcinomas and chronic pleuritis was used to train a random forest as well as a support vector machine. These classifiers were validated using an independent validation cohort including pleural carcinosis and pleomorphic variants of lung adeno- and squamous cell carcinomas. Furthermore, we performed differential methylation analysis and used a deconvolution method to estimate the composition of the tumor microenvironment. RESULTS T-distributed stochastic neighbor embedding clearly separated PM from lung adenocarcinomas and squamous cell carcinomas, but there was a considerable overlap between chronic pleuritis specimens and PM with low tumor cell content. In a nested cross validation on the training cohort, both machine learning algorithms achieved the same accuracies (94.8%). On the validation cohort, we observed high accuracies for the support vector machine (97.8%) while the random forest performed considerably worse (89.5%), especially in distinguishing PM from chronic pleuritis. Differential methylation analysis revealed promoter hypermethylation in PM specimens, including the tumor suppressor genes BCL11B, EBF1, FOXA1, and WNK2. Deconvolution of the stromal and immune cell composition revealed higher rates of regulatory T-cells and endothelial cells in tumor specimens and a heterogenous inflammation including macrophages, B-cells and natural killer cells in chronic pleuritis. CONCLUSION DNA methylation in combination with machine learning classifiers is a promising tool to reliably differentiate PM from chronic pleuritis and lung cancer, including pleomorphic carcinomas. Furthermore, our study highlights new candidate genes for PM carcinogenesis and shows that deconvolution of DNA methylation data can provide reasonable insights into the composition of the tumor microenvironment.
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Affiliation(s)
- Philipp Jurmeister
- Institute of Pathology, Ludwig Maximilians University Hospital Munich, Munich, Germany; Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany; German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Maximilian Leitheiser
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neuropathology, Charitéplatz 1, Berlin, Germany
| | - Peggy Wolkenstein
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neuropathology, Charitéplatz 1, Berlin, Germany
| | - Frederick Klauschen
- Institute of Pathology, Ludwig Maximilians University Hospital Munich, Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany; BIFOLD - Berlin Institute for the Foundations of Learning and Data, Berlin, Germany
| | - David Capper
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neuropathology, Charitéplatz 1, Berlin, Germany
| | - Luka Brcic
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria.
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Kiyokawa T. Peritoneal Pathology Review: Mullerian, Mucinous and Mesothelial Lesions. Surg Pathol Clin 2022; 15:259-276. [PMID: 35715161 DOI: 10.1016/j.path.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This review provides an overview of the pathology of selected benign and malignant lesions of the female peritoneum and their often-encountered differential diagnoses. It includes endometriosis and its related lesions, endosalpingiosis, pseudomyxoma peritonei (PMP) and related ovarian/appendiceal pathology, and malignant and benign mesothelial tumors. The current terminology associated with PMP is also discussed.
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Affiliation(s)
- Takako Kiyokawa
- Department of Pathology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi Minato-ku, Tokyo 105-8461, Japan.
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Nabeshima K, Hamasaki M, Kinoshita Y, Matsumoto S, Sa-Ngiamwibool P. Update of pathological diagnosis of pleural mesothelioma using genomic-based morphological techniques, for both histological and cytological investigations. Pathol Int 2022; 72:389-401. [PMID: 35596704 DOI: 10.1111/pin.13235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/28/2022] [Indexed: 11/30/2022]
Abstract
As more than 80% of pleural mesothelioma (PM) cases start with pleural effusions, diagnosis with effusion smear cytology or pleural biopsy is important. For diagnosing PM, a three-step approach is used: (1) detecting atypical cells; (2) verifying their mesothelial origin using immunohistochemistry (IHC); and (3) discriminating PM from benign mesothelial proliferations (BMP). The third step is critical for diagnosing early lesions. In small biopsy or cytologic specimens in which tumor cell fat invasion cannot be assessed, genomic-based assays, including IHC-detected BAP1 loss and fluorescence in situ hybridization (FISH)-detected homozygous deletion (HD) of CDKN2A/p16, are effective for differentiation. Both BAP1 IHC and CDKN2A FISH can equally be applied to histologic and cytologic specimens, with 100% specificity in discriminating PM from BMP. We found that methylthioadenosine phosphorylase (MTAP) loss as detected by IHC could serve as a feasible alternative in tissue and cytologic preparations for CDKN2A FISH. However, a combination including FISH was still most effective: the addition of NF2 FISH to CDKN2A FISH and BAP1 IHC yielded a greater sensitivity of close to 100% in diagnosing PM tissues. Although IHC is more feasible than FISH, owing to remaining challenges in data interpretation, caution and familiarity are warranted when diagnosing PM.
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Affiliation(s)
- Kazuki Nabeshima
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Makoto Hamasaki
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Yoshiaki Kinoshita
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Shinji Matsumoto
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Prakasit Sa-Ngiamwibool
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan.,Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kean, Thailand
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5-hmC loss is another useful tool in addition to BAP1 and MTAP immunostains to distinguish diffuse malignant peritoneal mesothelioma from reactive mesothelial hyperplasia in peritoneal cytology cell-blocks and biopsies. Virchows Arch 2022; 481:23-29. [DOI: 10.1007/s00428-022-03336-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 10/18/2022]
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Burke AP, Hardy N, Fanaroff R, Legesse T. Sarcomatoid Mesothelioma with Bland Histologic Features: A Potential Pitfall in Diagnosis. AJSP: REVIEWS & REPORTS 2022; 27:87-93. [PMID: 37538296 PMCID: PMC10398945 DOI: 10.1097/pcr.0000000000000506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Sarcomatoid mesotheliomas can be challenging to diagnose on small biopsy specimens, where limited material may preclude definitive assessment of invasion and lesional cells can have relatively bland cytology with no mesothelial marker expression. We report a case of a patient who presented with a pleural effusion and had subsequent pleural biopsy that showed a bland, uniform spindle cell proliferation in a mildly myxoid background. There was little if any collagen; no chest wall, soft tissue, or fat; and mesothelial markers were negative. The cells were positive for pancytokeratin and GATA3 by immunohistochemistry, and in situ hybridization showed a "negative" result for homozygous loss of CDKN2A; however, there was partial (heterozygous) loss of one allele. A diagnosis of atypical spindle cell proliferation was made based on these findings. Several months later, the patient had a repeat pleural biopsy that showed spindled cells with more pleomorphism, areas of invasion into the chest wall, and the same partial loss of CDKN2A, consistent with a sarcomatoid mesothelioma. This case underscores the challenges present on small biopsy specimens, the fact that sarcomatoid mesotheliomas can be relatively bland appearing with focal pleomorphism, and that heterozygous loss of CDKN2A should be considered a positive result indicative of a neoplastic process.
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Affiliation(s)
| | - Naomi Hardy
- University of Maryland Medical Center. 22 S. Greene St., Baltimore, MD 21201
| | - Rachel Fanaroff
- University of Maryland Medical Center, 22 S. Greene St., Baltimore MD 21201
| | - Teklu Legesse
- University of Maryland School of Medicine, 22 S. Greene St., Baltimore, MD 21201
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